mirror of
https://github.com/DarkPlacesEngine/gmqcc.git
synced 2024-11-23 20:33:05 +00:00
6538 lines
229 KiB
C
6538 lines
229 KiB
C
/*
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* Copyright (C) 2012, 2013
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* Wolfgang Bumiller
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* Dale Weiler
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is furnished to do
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* so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <string.h>
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#include <math.h>
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#include "gmqcc.h"
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#include "lexer.h"
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#include "ast.h"
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/* beginning of locals */
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#define PARSER_HT_LOCALS 2
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#define PARSER_HT_SIZE 128
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#define TYPEDEF_HT_SIZE 16
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typedef struct parser_s {
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lex_file *lex;
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int tok;
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bool ast_cleaned;
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ast_expression **globals;
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ast_expression **fields;
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ast_function **functions;
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ast_value **imm_float;
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ast_value **imm_string;
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ast_value **imm_vector;
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size_t translated;
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ht ht_imm_string;
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/* must be deleted first, they reference immediates and values */
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ast_value **accessors;
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ast_value *imm_float_zero;
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ast_value *imm_float_one;
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ast_value *imm_float_neg_one;
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ast_value *imm_vector_zero;
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ast_value *nil;
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ast_value *reserved_version;
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size_t crc_globals;
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size_t crc_fields;
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ast_function *function;
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ht aliases;
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/* All the labels the function defined...
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* Should they be in ast_function instead?
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*/
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ast_label **labels;
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ast_goto **gotos;
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const char **breaks;
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const char **continues;
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/* A list of hashtables for each scope */
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ht *variables;
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ht htfields;
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ht htglobals;
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ht *typedefs;
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/* same as above but for the spelling corrector */
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correct_trie_t **correct_variables;
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size_t ***correct_variables_score; /* vector of vector of size_t* */
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/* not to be used directly, we use the hash table */
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ast_expression **_locals;
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size_t *_blocklocals;
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ast_value **_typedefs;
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size_t *_blocktypedefs;
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lex_ctx *_block_ctx;
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/* we store the '=' operator info */
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const oper_info *assign_op;
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/* magic values */
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ast_value *const_vec[3];
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/* pragma flags */
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bool noref;
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/* collected information */
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size_t max_param_count;
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/* code generator */
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code_t *code;
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} parser_t;
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static ast_expression * const intrinsic_debug_typestring = (ast_expression*)0x1;
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static void parser_enterblock(parser_t *parser);
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static bool parser_leaveblock(parser_t *parser);
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static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e);
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static void parser_addglobal(parser_t *parser, const char *name, ast_expression *e);
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static bool parse_typedef(parser_t *parser);
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static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofields, int qualifier, ast_value *cached_typedef, bool noref, bool is_static, uint32_t qflags, char *vstring);
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static ast_block* parse_block(parser_t *parser);
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static bool parse_block_into(parser_t *parser, ast_block *block);
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static bool parse_statement_or_block(parser_t *parser, ast_expression **out);
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static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases);
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static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels);
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static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels);
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static ast_value* parser_create_array_setter_proto(parser_t *parser, ast_value *array, const char *funcname);
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static ast_value* parser_create_array_getter_proto(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname);
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static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
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static void parseerror(parser_t *parser, const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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vcompile_error(parser->lex->tok.ctx, fmt, ap);
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va_end(ap);
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}
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/* returns true if it counts as an error */
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static bool GMQCC_WARN parsewarning(parser_t *parser, int warntype, const char *fmt, ...)
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{
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bool r;
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va_list ap;
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va_start(ap, fmt);
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r = vcompile_warning(parser->lex->tok.ctx, warntype, fmt, ap);
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va_end(ap);
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return r;
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}
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/**********************************************************************
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* some maths used for constant folding
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*/
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vector vec3_add(vector a, vector b)
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{
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vector out;
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out.x = a.x + b.x;
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out.y = a.y + b.y;
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out.z = a.z + b.z;
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return out;
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}
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vector vec3_sub(vector a, vector b)
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{
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vector out;
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out.x = a.x - b.x;
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out.y = a.y - b.y;
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out.z = a.z - b.z;
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return out;
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}
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qcfloat vec3_mulvv(vector a, vector b)
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{
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return (a.x * b.x + a.y * b.y + a.z * b.z);
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}
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vector vec3_mulvf(vector a, float b)
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{
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vector out;
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out.x = a.x * b;
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out.y = a.y * b;
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out.z = a.z * b;
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return out;
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}
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/**********************************************************************
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* parsing
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*/
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static bool parser_next(parser_t *parser)
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{
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/* lex_do kills the previous token */
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parser->tok = lex_do(parser->lex);
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if (parser->tok == TOKEN_EOF)
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return true;
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if (parser->tok >= TOKEN_ERROR) {
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parseerror(parser, "lex error");
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return false;
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}
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return true;
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}
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#define parser_tokval(p) ((p)->lex->tok.value)
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#define parser_token(p) (&((p)->lex->tok))
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#define parser_ctx(p) ((p)->lex->tok.ctx)
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static ast_value* parser_const_float(parser_t *parser, double d)
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{
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size_t i;
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ast_value *out;
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lex_ctx ctx;
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for (i = 0; i < vec_size(parser->imm_float); ++i) {
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const double compare = parser->imm_float[i]->constval.vfloat;
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if (memcmp((const void*)&compare, (const void *)&d, sizeof(double)) == 0)
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return parser->imm_float[i];
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}
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if (parser->lex)
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ctx = parser_ctx(parser);
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else {
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memset(&ctx, 0, sizeof(ctx));
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}
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out = ast_value_new(ctx, "#IMMEDIATE", TYPE_FLOAT);
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out->cvq = CV_CONST;
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out->hasvalue = true;
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out->isimm = true;
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out->constval.vfloat = d;
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vec_push(parser->imm_float, out);
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return out;
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}
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static ast_value* parser_const_float_0(parser_t *parser)
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{
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if (!parser->imm_float_zero)
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parser->imm_float_zero = parser_const_float(parser, 0);
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return parser->imm_float_zero;
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}
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static ast_value* parser_const_float_neg1(parser_t *parser) {
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if (!parser->imm_float_neg_one)
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parser->imm_float_neg_one = parser_const_float(parser, -1);
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return parser->imm_float_neg_one;
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}
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static ast_value* parser_const_float_1(parser_t *parser)
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{
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if (!parser->imm_float_one)
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parser->imm_float_one = parser_const_float(parser, 1);
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return parser->imm_float_one;
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}
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static char *parser_strdup(const char *str)
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{
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if (str && !*str) {
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/* actually dup empty strings */
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char *out = (char*)mem_a(1);
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*out = 0;
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return out;
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}
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return util_strdup(str);
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}
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static ast_value* parser_const_string(parser_t *parser, const char *str, bool dotranslate)
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{
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size_t hash = util_hthash(parser->ht_imm_string, str);
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ast_value *out;
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if ( (out = (ast_value*)util_htgeth(parser->ht_imm_string, str, hash)) ) {
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if (dotranslate && out->name[0] == '#') {
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char name[32];
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util_snprintf(name, sizeof(name), "dotranslate_%lu", (unsigned long)(parser->translated++));
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ast_value_set_name(out, name);
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out->expression.flags |= AST_FLAG_INCLUDE_DEF;
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}
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return out;
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}
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/*
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for (i = 0; i < vec_size(parser->imm_string); ++i) {
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if (!strcmp(parser->imm_string[i]->constval.vstring, str))
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return parser->imm_string[i];
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}
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*/
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if (dotranslate) {
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char name[32];
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util_snprintf(name, sizeof(name), "dotranslate_%lu", (unsigned long)(parser->translated++));
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out = ast_value_new(parser_ctx(parser), name, TYPE_STRING);
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out->expression.flags |= AST_FLAG_INCLUDE_DEF;
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} else
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out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_STRING);
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out->cvq = CV_CONST;
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out->hasvalue = true;
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out->isimm = true;
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out->constval.vstring = parser_strdup(str);
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vec_push(parser->imm_string, out);
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util_htseth(parser->ht_imm_string, str, hash, out);
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return out;
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}
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static ast_value* parser_const_vector(parser_t *parser, vector v)
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{
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size_t i;
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ast_value *out;
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for (i = 0; i < vec_size(parser->imm_vector); ++i) {
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if (!memcmp(&parser->imm_vector[i]->constval.vvec, &v, sizeof(v)))
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return parser->imm_vector[i];
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}
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out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_VECTOR);
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out->cvq = CV_CONST;
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out->hasvalue = true;
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out->isimm = true;
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out->constval.vvec = v;
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vec_push(parser->imm_vector, out);
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return out;
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}
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static ast_value* parser_const_vector_f(parser_t *parser, float x, float y, float z)
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{
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vector v;
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v.x = x;
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v.y = y;
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v.z = z;
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return parser_const_vector(parser, v);
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}
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static ast_value* parser_const_vector_0(parser_t *parser)
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{
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if (!parser->imm_vector_zero)
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parser->imm_vector_zero = parser_const_vector_f(parser, 0, 0, 0);
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return parser->imm_vector_zero;
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}
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static ast_expression* parser_find_field(parser_t *parser, const char *name)
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{
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return ( ast_expression*)util_htget(parser->htfields, name);
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}
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static ast_expression* parser_find_label(parser_t *parser, const char *name)
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{
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size_t i;
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for(i = 0; i < vec_size(parser->labels); i++)
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if (!strcmp(parser->labels[i]->name, name))
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return (ast_expression*)parser->labels[i];
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return NULL;
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}
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static ast_expression* parser_find_global(parser_t *parser, const char *name)
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{
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ast_expression *var = (ast_expression*)util_htget(parser->aliases, parser_tokval(parser));
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if (var)
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return var;
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return (ast_expression*)util_htget(parser->htglobals, name);
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}
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static ast_expression* parser_find_param(parser_t *parser, const char *name)
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{
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size_t i;
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ast_value *fun;
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if (!parser->function)
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return NULL;
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fun = parser->function->vtype;
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for (i = 0; i < vec_size(fun->expression.params); ++i) {
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if (!strcmp(fun->expression.params[i]->name, name))
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return (ast_expression*)(fun->expression.params[i]);
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}
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return NULL;
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}
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static ast_expression* parser_find_local(parser_t *parser, const char *name, size_t upto, bool *isparam)
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{
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size_t i, hash;
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ast_expression *e;
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hash = util_hthash(parser->htglobals, name);
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*isparam = false;
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for (i = vec_size(parser->variables); i > upto;) {
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--i;
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if ( (e = (ast_expression*)util_htgeth(parser->variables[i], name, hash)) )
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return e;
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}
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*isparam = true;
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return parser_find_param(parser, name);
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}
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static ast_expression* parser_find_var(parser_t *parser, const char *name)
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{
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bool dummy;
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ast_expression *v;
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v = parser_find_local(parser, name, 0, &dummy);
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if (!v) v = parser_find_global(parser, name);
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return v;
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}
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static ast_value* parser_find_typedef(parser_t *parser, const char *name, size_t upto)
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{
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size_t i, hash;
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ast_value *e;
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hash = util_hthash(parser->typedefs[0], name);
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for (i = vec_size(parser->typedefs); i > upto;) {
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--i;
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if ( (e = (ast_value*)util_htgeth(parser->typedefs[i], name, hash)) )
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return e;
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}
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return NULL;
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}
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/* include intrinsics */
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#include "intrin.h"
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typedef struct
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{
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size_t etype; /* 0 = expression, others are operators */
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bool isparen;
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size_t off;
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ast_expression *out;
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ast_block *block; /* for commas and function calls */
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lex_ctx ctx;
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} sy_elem;
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enum {
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PAREN_EXPR,
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PAREN_FUNC,
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PAREN_INDEX,
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PAREN_TERNARY1,
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PAREN_TERNARY2
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};
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typedef struct
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{
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sy_elem *out;
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sy_elem *ops;
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size_t *argc;
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unsigned int *paren;
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} shunt;
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static sy_elem syexp(lex_ctx ctx, ast_expression *v) {
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sy_elem e;
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e.etype = 0;
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e.off = 0;
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e.out = v;
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e.block = NULL;
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e.ctx = ctx;
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e.isparen = false;
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return e;
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}
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static sy_elem syblock(lex_ctx ctx, ast_block *v) {
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sy_elem e;
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e.etype = 0;
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e.off = 0;
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e.out = (ast_expression*)v;
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e.block = v;
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e.ctx = ctx;
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e.isparen = false;
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return e;
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}
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static sy_elem syop(lex_ctx ctx, const oper_info *op) {
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sy_elem e;
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e.etype = 1 + (op - operators);
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e.off = 0;
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e.out = NULL;
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e.block = NULL;
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e.ctx = ctx;
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e.isparen = false;
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return e;
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}
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static sy_elem syparen(lex_ctx ctx, size_t off) {
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sy_elem e;
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e.etype = 0;
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e.off = off;
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e.out = NULL;
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e.block = NULL;
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e.ctx = ctx;
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e.isparen = true;
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return e;
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}
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/* With regular precedence rules, ent.foo[n] is the same as (ent.foo)[n],
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* so we need to rotate it to become ent.(foo[n]).
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*/
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static bool rotate_entfield_array_index_nodes(ast_expression **out)
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{
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ast_array_index *index, *oldindex;
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ast_entfield *entfield;
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ast_value *field;
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ast_expression *sub;
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ast_expression *entity;
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lex_ctx ctx = ast_ctx(*out);
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if (!ast_istype(*out, ast_array_index))
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return false;
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index = (ast_array_index*)*out;
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if (!ast_istype(index->array, ast_entfield))
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return false;
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entfield = (ast_entfield*)index->array;
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if (!ast_istype(entfield->field, ast_value))
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return false;
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field = (ast_value*)entfield->field;
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sub = index->index;
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entity = entfield->entity;
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oldindex = index;
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index = ast_array_index_new(ctx, (ast_expression*)field, sub);
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entfield = ast_entfield_new(ctx, entity, (ast_expression*)index);
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*out = (ast_expression*)entfield;
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oldindex->array = NULL;
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oldindex->index = NULL;
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ast_delete(oldindex);
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return true;
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}
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|
|
static bool immediate_is_true(lex_ctx ctx, ast_value *v)
|
|
{
|
|
switch (v->expression.vtype) {
|
|
case TYPE_FLOAT:
|
|
return !!v->constval.vfloat;
|
|
case TYPE_INTEGER:
|
|
return !!v->constval.vint;
|
|
case TYPE_VECTOR:
|
|
if (OPTS_FLAG(CORRECT_LOGIC))
|
|
return v->constval.vvec.x &&
|
|
v->constval.vvec.y &&
|
|
v->constval.vvec.z;
|
|
else
|
|
return !!(v->constval.vvec.x);
|
|
case TYPE_STRING:
|
|
if (!v->constval.vstring)
|
|
return false;
|
|
if (v->constval.vstring && OPTS_FLAG(TRUE_EMPTY_STRINGS))
|
|
return true;
|
|
return !!v->constval.vstring[0];
|
|
default:
|
|
compile_error(ctx, "internal error: immediate_is_true on invalid type");
|
|
return !!v->constval.vfunc;
|
|
}
|
|
}
|
|
|
|
static bool parser_sy_apply_operator(parser_t *parser, shunt *sy)
|
|
{
|
|
const oper_info *op;
|
|
lex_ctx ctx;
|
|
ast_expression *out = NULL;
|
|
ast_expression *exprs[3];
|
|
ast_block *blocks[3];
|
|
ast_value *asvalue[3];
|
|
ast_binstore *asbinstore;
|
|
size_t i, assignop, addop, subop;
|
|
qcint generated_op = 0;
|
|
|
|
char ty1[1024];
|
|
char ty2[1024];
|
|
|
|
if (!vec_size(sy->ops)) {
|
|
parseerror(parser, "internal error: missing operator");
|
|
return false;
|
|
}
|
|
|
|
if (vec_last(sy->ops).isparen) {
|
|
parseerror(parser, "unmatched parenthesis");
|
|
return false;
|
|
}
|
|
|
|
op = &operators[vec_last(sy->ops).etype - 1];
|
|
ctx = vec_last(sy->ops).ctx;
|
|
|
|
if (vec_size(sy->out) < op->operands) {
|
|
compile_error(ctx, "internal error: not enough operands: %i (operator %s (%i))", vec_size(sy->out),
|
|
op->op, (int)op->id);
|
|
return false;
|
|
}
|
|
|
|
vec_shrinkby(sy->ops, 1);
|
|
|
|
/* op(:?) has no input and no output */
|
|
if (!op->operands)
|
|
return true;
|
|
|
|
vec_shrinkby(sy->out, op->operands);
|
|
for (i = 0; i < op->operands; ++i) {
|
|
exprs[i] = sy->out[vec_size(sy->out)+i].out;
|
|
blocks[i] = sy->out[vec_size(sy->out)+i].block;
|
|
asvalue[i] = (ast_value*)exprs[i];
|
|
|
|
if (exprs[i]->vtype == TYPE_NOEXPR &&
|
|
!(i != 0 && op->id == opid2('?',':')) &&
|
|
!(i == 1 && op->id == opid1('.')))
|
|
{
|
|
if (ast_istype(exprs[i], ast_label))
|
|
compile_error(ast_ctx(exprs[i]), "expected expression, got an unknown identifier");
|
|
else
|
|
compile_error(ast_ctx(exprs[i]), "not an expression");
|
|
(void)!compile_warning(ast_ctx(exprs[i]), WARN_DEBUG, "expression %u\n", (unsigned int)i);
|
|
}
|
|
}
|
|
|
|
if (blocks[0] && !vec_size(blocks[0]->exprs) && op->id != opid1(',')) {
|
|
compile_error(ctx, "internal error: operator cannot be applied on empty blocks");
|
|
return false;
|
|
}
|
|
|
|
#define NotSameType(T) \
|
|
(exprs[0]->vtype != exprs[1]->vtype || \
|
|
exprs[0]->vtype != T)
|
|
#define CanConstFold1(A) \
|
|
(ast_istype((A), ast_value) && ((ast_value*)(A))->hasvalue && (((ast_value*)(A))->cvq == CV_CONST) &&\
|
|
(A)->vtype != TYPE_FUNCTION)
|
|
#define CanConstFold(A, B) \
|
|
(CanConstFold1(A) && CanConstFold1(B))
|
|
#define ConstV(i) (asvalue[(i)]->constval.vvec)
|
|
#define ConstF(i) (asvalue[(i)]->constval.vfloat)
|
|
#define ConstS(i) (asvalue[(i)]->constval.vstring)
|
|
switch (op->id)
|
|
{
|
|
default:
|
|
compile_error(ctx, "internal error: unhandled operator: %s (%i)", op->op, (int)op->id);
|
|
return false;
|
|
|
|
case opid1('.'):
|
|
if (exprs[0]->vtype == TYPE_VECTOR &&
|
|
exprs[1]->vtype == TYPE_NOEXPR)
|
|
{
|
|
if (exprs[1] == (ast_expression*)parser->const_vec[0])
|
|
out = (ast_expression*)ast_member_new(ctx, exprs[0], 0, NULL);
|
|
else if (exprs[1] == (ast_expression*)parser->const_vec[1])
|
|
out = (ast_expression*)ast_member_new(ctx, exprs[0], 1, NULL);
|
|
else if (exprs[1] == (ast_expression*)parser->const_vec[2])
|
|
out = (ast_expression*)ast_member_new(ctx, exprs[0], 2, NULL);
|
|
else {
|
|
compile_error(ctx, "access to invalid vector component");
|
|
return false;
|
|
}
|
|
}
|
|
else if (exprs[0]->vtype == TYPE_ENTITY) {
|
|
if (exprs[1]->vtype != TYPE_FIELD) {
|
|
compile_error(ast_ctx(exprs[1]), "type error: right hand of member-operand should be an entity-field");
|
|
return false;
|
|
}
|
|
out = (ast_expression*)ast_entfield_new(ctx, exprs[0], exprs[1]);
|
|
}
|
|
else if (exprs[0]->vtype == TYPE_VECTOR) {
|
|
compile_error(ast_ctx(exprs[1]), "vectors cannot be accessed this way");
|
|
return false;
|
|
}
|
|
else {
|
|
compile_error(ast_ctx(exprs[1]), "type error: member-of operator on something that is not an entity or vector");
|
|
return false;
|
|
}
|
|
break;
|
|
|
|
case opid1('['):
|
|
if (exprs[0]->vtype != TYPE_ARRAY &&
|
|
!(exprs[0]->vtype == TYPE_FIELD &&
|
|
exprs[0]->next->vtype == TYPE_ARRAY))
|
|
{
|
|
ast_type_to_string(exprs[0], ty1, sizeof(ty1));
|
|
compile_error(ast_ctx(exprs[0]), "cannot index value of type %s", ty1);
|
|
return false;
|
|
}
|
|
if (exprs[1]->vtype != TYPE_FLOAT) {
|
|
ast_type_to_string(exprs[0], ty1, sizeof(ty1));
|
|
compile_error(ast_ctx(exprs[1]), "index must be of type float, not %s", ty1);
|
|
return false;
|
|
}
|
|
out = (ast_expression*)ast_array_index_new(ctx, exprs[0], exprs[1]);
|
|
if (rotate_entfield_array_index_nodes(&out))
|
|
{
|
|
#if 0
|
|
/* This is not broken in fteqcc anymore */
|
|
if (OPTS_OPTION_U32(OPTION_STANDARD) != COMPILER_GMQCC) {
|
|
/* this error doesn't need to make us bail out */
|
|
(void)!parsewarning(parser, WARN_EXTENSIONS,
|
|
"accessing array-field members of an entity without parenthesis\n"
|
|
" -> this is an extension from -std=gmqcc");
|
|
}
|
|
#endif
|
|
}
|
|
break;
|
|
|
|
case opid1(','):
|
|
if (vec_size(sy->paren) && vec_last(sy->paren) == PAREN_FUNC) {
|
|
vec_push(sy->out, syexp(ctx, exprs[0]));
|
|
vec_push(sy->out, syexp(ctx, exprs[1]));
|
|
vec_last(sy->argc)++;
|
|
return true;
|
|
}
|
|
if (blocks[0]) {
|
|
if (!ast_block_add_expr(blocks[0], exprs[1]))
|
|
return false;
|
|
} else {
|
|
blocks[0] = ast_block_new(ctx);
|
|
if (!ast_block_add_expr(blocks[0], exprs[0]) ||
|
|
!ast_block_add_expr(blocks[0], exprs[1]))
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
ast_block_set_type(blocks[0], exprs[1]);
|
|
|
|
vec_push(sy->out, syblock(ctx, blocks[0]));
|
|
return true;
|
|
|
|
case opid2('+','P'):
|
|
out = exprs[0];
|
|
break;
|
|
case opid2('-','P'):
|
|
switch (exprs[0]->vtype) {
|
|
case TYPE_FLOAT:
|
|
if (CanConstFold1(exprs[0]))
|
|
out = (ast_expression*)parser_const_float(parser, -ConstF(0));
|
|
else
|
|
out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F,
|
|
(ast_expression*)parser_const_float_0(parser),
|
|
exprs[0]);
|
|
break;
|
|
case TYPE_VECTOR:
|
|
if (CanConstFold1(exprs[0]))
|
|
out = (ast_expression*)parser_const_vector_f(parser,
|
|
-ConstV(0).x, -ConstV(0).y, -ConstV(0).z);
|
|
else
|
|
out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V,
|
|
(ast_expression*)parser_const_vector_0(parser),
|
|
exprs[0]);
|
|
break;
|
|
default:
|
|
compile_error(ctx, "invalid types used in expression: cannot negate type %s",
|
|
type_name[exprs[0]->vtype]);
|
|
return false;
|
|
}
|
|
break;
|
|
|
|
case opid2('!','P'):
|
|
switch (exprs[0]->vtype) {
|
|
case TYPE_FLOAT:
|
|
if (CanConstFold1(exprs[0]))
|
|
out = (ast_expression*)parser_const_float(parser, !ConstF(0));
|
|
else
|
|
out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
|
|
break;
|
|
case TYPE_VECTOR:
|
|
if (CanConstFold1(exprs[0]))
|
|
out = (ast_expression*)parser_const_float(parser,
|
|
(!ConstV(0).x && !ConstV(0).y && !ConstV(0).z));
|
|
else
|
|
out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[0]);
|
|
break;
|
|
case TYPE_STRING:
|
|
if (CanConstFold1(exprs[0])) {
|
|
if (OPTS_FLAG(TRUE_EMPTY_STRINGS))
|
|
out = (ast_expression*)parser_const_float(parser, !ConstS(0));
|
|
else
|
|
out = (ast_expression*)parser_const_float(parser, !ConstS(0) || !*ConstS(0));
|
|
} else {
|
|
if (OPTS_FLAG(TRUE_EMPTY_STRINGS))
|
|
out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
|
|
else
|
|
out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[0]);
|
|
}
|
|
break;
|
|
/* we don't constant-fold NOT for these types */
|
|
case TYPE_ENTITY:
|
|
out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_ENT, exprs[0]);
|
|
break;
|
|
case TYPE_FUNCTION:
|
|
out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_FNC, exprs[0]);
|
|
break;
|
|
default:
|
|
compile_error(ctx, "invalid types used in expression: cannot logically negate type %s",
|
|
type_name[exprs[0]->vtype]);
|
|
return false;
|
|
}
|
|
break;
|
|
|
|
case opid1('+'):
|
|
if (exprs[0]->vtype != exprs[1]->vtype ||
|
|
(exprs[0]->vtype != TYPE_VECTOR && exprs[0]->vtype != TYPE_FLOAT) )
|
|
{
|
|
compile_error(ctx, "invalid types used in expression: cannot add type %s and %s",
|
|
type_name[exprs[0]->vtype],
|
|
type_name[exprs[1]->vtype]);
|
|
return false;
|
|
}
|
|
switch (exprs[0]->vtype) {
|
|
case TYPE_FLOAT:
|
|
if (CanConstFold(exprs[0], exprs[1]))
|
|
{
|
|
out = (ast_expression*)parser_const_float(parser, ConstF(0) + ConstF(1));
|
|
}
|
|
else
|
|
out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F, exprs[0], exprs[1]);
|
|
break;
|
|
case TYPE_VECTOR:
|
|
if (CanConstFold(exprs[0], exprs[1]))
|
|
out = (ast_expression*)parser_const_vector(parser, vec3_add(ConstV(0), ConstV(1)));
|
|
else
|
|
out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_V, exprs[0], exprs[1]);
|
|
break;
|
|
default:
|
|
compile_error(ctx, "invalid types used in expression: cannot add type %s and %s",
|
|
type_name[exprs[0]->vtype],
|
|
type_name[exprs[1]->vtype]);
|
|
return false;
|
|
};
|
|
break;
|
|
case opid1('-'):
|
|
if (exprs[0]->vtype != exprs[1]->vtype ||
|
|
(exprs[0]->vtype != TYPE_VECTOR && exprs[0]->vtype != TYPE_FLOAT) )
|
|
{
|
|
compile_error(ctx, "invalid types used in expression: cannot subtract type %s from %s",
|
|
type_name[exprs[1]->vtype],
|
|
type_name[exprs[0]->vtype]);
|
|
return false;
|
|
}
|
|
switch (exprs[0]->vtype) {
|
|
case TYPE_FLOAT:
|
|
if (CanConstFold(exprs[0], exprs[1]))
|
|
out = (ast_expression*)parser_const_float(parser, ConstF(0) - ConstF(1));
|
|
else
|
|
out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F, exprs[0], exprs[1]);
|
|
break;
|
|
case TYPE_VECTOR:
|
|
if (CanConstFold(exprs[0], exprs[1]))
|
|
out = (ast_expression*)parser_const_vector(parser, vec3_sub(ConstV(0), ConstV(1)));
|
|
else
|
|
out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V, exprs[0], exprs[1]);
|
|
break;
|
|
default:
|
|
compile_error(ctx, "invalid types used in expression: cannot subtract type %s from %s",
|
|
type_name[exprs[1]->vtype],
|
|
type_name[exprs[0]->vtype]);
|
|
return false;
|
|
};
|
|
break;
|
|
case opid1('*'):
|
|
if (exprs[0]->vtype != exprs[1]->vtype &&
|
|
!(exprs[0]->vtype == TYPE_VECTOR &&
|
|
exprs[1]->vtype == TYPE_FLOAT) &&
|
|
!(exprs[1]->vtype == TYPE_VECTOR &&
|
|
exprs[0]->vtype == TYPE_FLOAT)
|
|
)
|
|
{
|
|
compile_error(ctx, "invalid types used in expression: cannot multiply types %s and %s",
|
|
type_name[exprs[1]->vtype],
|
|
type_name[exprs[0]->vtype]);
|
|
return false;
|
|
}
|
|
switch (exprs[0]->vtype) {
|
|
case TYPE_FLOAT:
|
|
if (exprs[1]->vtype == TYPE_VECTOR)
|
|
{
|
|
if (CanConstFold(exprs[0], exprs[1]))
|
|
out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(1), ConstF(0)));
|
|
else
|
|
out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_FV, exprs[0], exprs[1]);
|
|
}
|
|
else
|
|
{
|
|
if (CanConstFold(exprs[0], exprs[1]))
|
|
out = (ast_expression*)parser_const_float(parser, ConstF(0) * ConstF(1));
|
|
else
|
|
out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, exprs[0], exprs[1]);
|
|
}
|
|
break;
|
|
case TYPE_VECTOR:
|
|
if (exprs[1]->vtype == TYPE_FLOAT)
|
|
{
|
|
if (CanConstFold(exprs[0], exprs[1]))
|
|
out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(0), ConstF(1)));
|
|
else
|
|
out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_VF, exprs[0], exprs[1]);
|
|
}
|
|
else
|
|
{
|
|
if (CanConstFold(exprs[0], exprs[1]))
|
|
out = (ast_expression*)parser_const_float(parser, vec3_mulvv(ConstV(0), ConstV(1)));
|
|
else if (OPTS_OPTIMIZATION(OPTIM_VECTOR_COMPONENTS) && CanConstFold1(exprs[0])) {
|
|
vector vec = ConstV(0);
|
|
if (!vec.y && !vec.z) { /* 'n 0 0' * v */
|
|
++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
|
|
out = (ast_expression*)ast_member_new(ctx, exprs[1], 0, NULL);
|
|
out->node.keep = false;
|
|
((ast_member*)out)->rvalue = true;
|
|
if (vec.x != 1)
|
|
out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.x), out);
|
|
}
|
|
else if (!vec.x && !vec.z) { /* '0 n 0' * v */
|
|
++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
|
|
out = (ast_expression*)ast_member_new(ctx, exprs[1], 1, NULL);
|
|
out->node.keep = false;
|
|
((ast_member*)out)->rvalue = true;
|
|
if (vec.y != 1)
|
|
out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.y), out);
|
|
}
|
|
else if (!vec.x && !vec.y) { /* '0 n 0' * v */
|
|
++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
|
|
out = (ast_expression*)ast_member_new(ctx, exprs[1], 2, NULL);
|
|
out->node.keep = false;
|
|
((ast_member*)out)->rvalue = true;
|
|
if (vec.z != 1)
|
|
out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.z), out);
|
|
}
|
|
else
|
|
out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
|
|
}
|
|
else if (OPTS_OPTIMIZATION(OPTIM_VECTOR_COMPONENTS) && CanConstFold1(exprs[1])) {
|
|
vector vec = ConstV(1);
|
|
if (!vec.y && !vec.z) { /* v * 'n 0 0' */
|
|
++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
|
|
out = (ast_expression*)ast_member_new(ctx, exprs[0], 0, NULL);
|
|
out->node.keep = false;
|
|
((ast_member*)out)->rvalue = true;
|
|
if (vec.x != 1)
|
|
out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.x));
|
|
}
|
|
else if (!vec.x && !vec.z) { /* v * '0 n 0' */
|
|
++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
|
|
out = (ast_expression*)ast_member_new(ctx, exprs[0], 1, NULL);
|
|
out->node.keep = false;
|
|
((ast_member*)out)->rvalue = true;
|
|
if (vec.y != 1)
|
|
out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.y));
|
|
}
|
|
else if (!vec.x && !vec.y) { /* v * '0 n 0' */
|
|
++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
|
|
out = (ast_expression*)ast_member_new(ctx, exprs[0], 2, NULL);
|
|
out->node.keep = false;
|
|
((ast_member*)out)->rvalue = true;
|
|
if (vec.z != 1)
|
|
out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.z));
|
|
}
|
|
else
|
|
out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
|
|
}
|
|
else
|
|
out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
|
|
}
|
|
break;
|
|
default:
|
|
compile_error(ctx, "invalid types used in expression: cannot multiply types %s and %s",
|
|
type_name[exprs[1]->vtype],
|
|
type_name[exprs[0]->vtype]);
|
|
return false;
|
|
};
|
|
break;
|
|
case opid1('/'):
|
|
if (exprs[1]->vtype != TYPE_FLOAT) {
|
|
ast_type_to_string(exprs[0], ty1, sizeof(ty1));
|
|
ast_type_to_string(exprs[1], ty2, sizeof(ty2));
|
|
compile_error(ctx, "invalid types used in expression: cannot divide tyeps %s and %s", ty1, ty2);
|
|
return false;
|
|
}
|
|
if (exprs[0]->vtype == TYPE_FLOAT) {
|
|
if (CanConstFold(exprs[0], exprs[1]))
|
|
out = (ast_expression*)parser_const_float(parser, ConstF(0) / ConstF(1));
|
|
else
|
|
out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F, exprs[0], exprs[1]);
|
|
}
|
|
else if (exprs[0]->vtype == TYPE_VECTOR) {
|
|
if (CanConstFold(exprs[0], exprs[1]))
|
|
out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(0), 1.0/ConstF(1)));
|
|
else {
|
|
if (CanConstFold1(exprs[1])) {
|
|
out = (ast_expression*)parser_const_float(parser, 1.0 / ConstF(1));
|
|
} else {
|
|
out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F,
|
|
(ast_expression*)parser_const_float_1(parser),
|
|
exprs[1]);
|
|
}
|
|
if (!out) {
|
|
compile_error(ctx, "internal error: failed to generate division");
|
|
return false;
|
|
}
|
|
out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_VF, exprs[0], out);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ast_type_to_string(exprs[0], ty1, sizeof(ty1));
|
|
ast_type_to_string(exprs[1], ty2, sizeof(ty2));
|
|
compile_error(ctx, "invalid types used in expression: cannot divide tyeps %s and %s", ty1, ty2);
|
|
return false;
|
|
}
|
|
break;
|
|
|
|
case opid1('%'):
|
|
if (NotSameType(TYPE_FLOAT)) {
|
|
compile_error(ctx, "invalid types used in expression: cannot perform modulo operation between types %s and %s",
|
|
type_name[exprs[0]->vtype],
|
|
type_name[exprs[1]->vtype]);
|
|
return false;
|
|
}
|
|
if (CanConstFold(exprs[0], exprs[1])) {
|
|
out = (ast_expression*)parser_const_float(parser,
|
|
(float)(((qcint)ConstF(0)) % ((qcint)ConstF(1))));
|
|
} else {
|
|
/* generate a call to __builtin_mod */
|
|
ast_expression *mod = intrin_func(parser, "mod");
|
|
ast_call *call = NULL;
|
|
if (!mod) return false; /* can return null for missing floor */
|
|
|
|
call = ast_call_new(parser_ctx(parser), mod);
|
|
vec_push(call->params, exprs[0]);
|
|
vec_push(call->params, exprs[1]);
|
|
|
|
out = (ast_expression*)call;
|
|
}
|
|
break;
|
|
|
|
case opid2('%','='):
|
|
compile_error(ctx, "%= is unimplemented");
|
|
return false;
|
|
|
|
case opid1('|'):
|
|
case opid1('&'):
|
|
if (NotSameType(TYPE_FLOAT)) {
|
|
compile_error(ctx, "invalid types used in expression: cannot perform bit operations between types %s and %s",
|
|
type_name[exprs[0]->vtype],
|
|
type_name[exprs[1]->vtype]);
|
|
return false;
|
|
}
|
|
if (CanConstFold(exprs[0], exprs[1]))
|
|
out = (ast_expression*)parser_const_float(parser,
|
|
(op->id == opid1('|') ? (float)( ((qcint)ConstF(0)) | ((qcint)ConstF(1)) ) :
|
|
(float)( ((qcint)ConstF(0)) & ((qcint)ConstF(1)) ) ));
|
|
else
|
|
out = (ast_expression*)ast_binary_new(ctx,
|
|
(op->id == opid1('|') ? INSTR_BITOR : INSTR_BITAND),
|
|
exprs[0], exprs[1]);
|
|
break;
|
|
case opid1('^'):
|
|
compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-xor via ^");
|
|
return false;
|
|
|
|
case opid2('<','<'):
|
|
case opid2('>','>'):
|
|
if (CanConstFold(exprs[0], exprs[1]) && ! NotSameType(TYPE_FLOAT)) {
|
|
if (op->id == opid2('<','<'))
|
|
out = (ast_expression*)parser_const_float(parser, (double)((unsigned int)(ConstF(0)) << (unsigned int)(ConstF(1))));
|
|
else
|
|
out = (ast_expression*)parser_const_float(parser, (double)((unsigned int)(ConstF(0)) >> (unsigned int)(ConstF(1))));
|
|
break;
|
|
}
|
|
case opid3('<','<','='):
|
|
case opid3('>','>','='):
|
|
compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-shifts");
|
|
return false;
|
|
|
|
case opid2('|','|'):
|
|
generated_op += 1; /* INSTR_OR */
|
|
case opid2('&','&'):
|
|
generated_op += INSTR_AND;
|
|
if (CanConstFold(exprs[0], exprs[1]))
|
|
{
|
|
if (OPTS_FLAG(PERL_LOGIC)) {
|
|
if (immediate_is_true(ctx, asvalue[0]))
|
|
out = exprs[1];
|
|
}
|
|
else
|
|
out = (ast_expression*)parser_const_float(parser,
|
|
( (generated_op == INSTR_OR)
|
|
? (immediate_is_true(ctx, asvalue[0]) || immediate_is_true(ctx, asvalue[1]))
|
|
: (immediate_is_true(ctx, asvalue[0]) && immediate_is_true(ctx, asvalue[1])) )
|
|
? 1 : 0);
|
|
}
|
|
else
|
|
{
|
|
if (OPTS_FLAG(PERL_LOGIC) && !ast_compare_type(exprs[0], exprs[1])) {
|
|
ast_type_to_string(exprs[0], ty1, sizeof(ty1));
|
|
ast_type_to_string(exprs[1], ty2, sizeof(ty2));
|
|
compile_error(ctx, "invalid types for logical operation with -fperl-logic: %s and %s", ty1, ty2);
|
|
return false;
|
|
}
|
|
for (i = 0; i < 2; ++i) {
|
|
if (OPTS_FLAG(CORRECT_LOGIC) && exprs[i]->vtype == TYPE_VECTOR) {
|
|
out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[i]);
|
|
if (!out) break;
|
|
out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
|
|
if (!out) break;
|
|
exprs[i] = out; out = NULL;
|
|
if (OPTS_FLAG(PERL_LOGIC)) {
|
|
/* here we want to keep the right expressions' type */
|
|
break;
|
|
}
|
|
}
|
|
else if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && exprs[i]->vtype == TYPE_STRING) {
|
|
out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[i]);
|
|
if (!out) break;
|
|
out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
|
|
if (!out) break;
|
|
exprs[i] = out; out = NULL;
|
|
if (OPTS_FLAG(PERL_LOGIC)) {
|
|
/* here we want to keep the right expressions' type */
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
|
|
}
|
|
break;
|
|
|
|
case opid2('?',':'):
|
|
if (vec_last(sy->paren) != PAREN_TERNARY2) {
|
|
compile_error(ctx, "mismatched parenthesis/ternary");
|
|
return false;
|
|
}
|
|
vec_pop(sy->paren);
|
|
if (!ast_compare_type(exprs[1], exprs[2])) {
|
|
ast_type_to_string(exprs[1], ty1, sizeof(ty1));
|
|
ast_type_to_string(exprs[2], ty2, sizeof(ty2));
|
|
compile_error(ctx, "operands of ternary expression must have the same type, got %s and %s", ty1, ty2);
|
|
return false;
|
|
}
|
|
if (CanConstFold1(exprs[0]))
|
|
out = (immediate_is_true(ctx, asvalue[0]) ? exprs[1] : exprs[2]);
|
|
else
|
|
out = (ast_expression*)ast_ternary_new(ctx, exprs[0], exprs[1], exprs[2]);
|
|
break;
|
|
|
|
case opid2('*', '*'):
|
|
if (NotSameType(TYPE_FLOAT)) {
|
|
ast_type_to_string(exprs[0], ty1, sizeof(ty1));
|
|
ast_type_to_string(exprs[1], ty2, sizeof(ty2));
|
|
compile_error(ctx, "invalid types used in exponentiation: %s and %s",
|
|
ty1, ty2);
|
|
|
|
return false;
|
|
}
|
|
|
|
if (CanConstFold(exprs[0], exprs[1])) {
|
|
out = (ast_expression*)parser_const_float(parser, powf(ConstF(0), ConstF(1)));
|
|
} else {
|
|
ast_call *gencall = ast_call_new(parser_ctx(parser), intrin_func(parser, "pow"));
|
|
vec_push(gencall->params, exprs[0]);
|
|
vec_push(gencall->params, exprs[1]);
|
|
out = (ast_expression*)gencall;
|
|
}
|
|
break;
|
|
|
|
case opid3('<','=','>'): /* -1, 0, or 1 */
|
|
if (NotSameType(TYPE_FLOAT)) {
|
|
ast_type_to_string(exprs[0], ty1, sizeof(ty1));
|
|
ast_type_to_string(exprs[1], ty2, sizeof(ty2));
|
|
compile_error(ctx, "invalid types used in comparision: %s and %s",
|
|
ty1, ty2);
|
|
|
|
return false;
|
|
}
|
|
|
|
if (CanConstFold(exprs[0], exprs[1])) {
|
|
if (ConstF(0) < ConstF(1))
|
|
out = (ast_expression*)parser_const_float_neg1(parser);
|
|
else if (ConstF(0) == ConstF(1))
|
|
out = (ast_expression*)parser_const_float_0(parser);
|
|
else if (ConstF(0) > ConstF(1))
|
|
out = (ast_expression*)parser_const_float_1(parser);
|
|
} else {
|
|
ast_binary *eq = ast_binary_new(ctx, INSTR_EQ_F, exprs[0], exprs[1]);
|
|
|
|
eq->refs = (ast_binary_ref)false; /* references nothing */
|
|
|
|
/* if (lt) { */
|
|
out = (ast_expression*)ast_ternary_new(ctx,
|
|
(ast_expression*)ast_binary_new(ctx, INSTR_LT, exprs[0], exprs[1]),
|
|
/* out = -1 */
|
|
(ast_expression*)parser_const_float_neg1(parser),
|
|
/* } else { */
|
|
/* if (eq) { */
|
|
(ast_expression*)ast_ternary_new(ctx, (ast_expression*)eq,
|
|
/* out = 0 */
|
|
(ast_expression*)parser_const_float_0(parser),
|
|
/* } else { */
|
|
/* out = 1 */
|
|
(ast_expression*)parser_const_float_1(parser)
|
|
/* } */
|
|
)
|
|
/* } */
|
|
);
|
|
|
|
}
|
|
break;
|
|
|
|
case opid1('>'):
|
|
generated_op += 1; /* INSTR_GT */
|
|
case opid1('<'):
|
|
generated_op += 1; /* INSTR_LT */
|
|
case opid2('>', '='):
|
|
generated_op += 1; /* INSTR_GE */
|
|
case opid2('<', '='):
|
|
generated_op += INSTR_LE;
|
|
if (NotSameType(TYPE_FLOAT)) {
|
|
compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
|
|
type_name[exprs[0]->vtype],
|
|
type_name[exprs[1]->vtype]);
|
|
return false;
|
|
}
|
|
out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
|
|
break;
|
|
case opid2('!', '='):
|
|
if (exprs[0]->vtype != exprs[1]->vtype) {
|
|
compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
|
|
type_name[exprs[0]->vtype],
|
|
type_name[exprs[1]->vtype]);
|
|
return false;
|
|
}
|
|
out = (ast_expression*)ast_binary_new(ctx, type_ne_instr[exprs[0]->vtype], exprs[0], exprs[1]);
|
|
break;
|
|
case opid2('=', '='):
|
|
if (exprs[0]->vtype != exprs[1]->vtype) {
|
|
compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
|
|
type_name[exprs[0]->vtype],
|
|
type_name[exprs[1]->vtype]);
|
|
return false;
|
|
}
|
|
out = (ast_expression*)ast_binary_new(ctx, type_eq_instr[exprs[0]->vtype], exprs[0], exprs[1]);
|
|
break;
|
|
|
|
case opid1('='):
|
|
if (ast_istype(exprs[0], ast_entfield)) {
|
|
ast_expression *field = ((ast_entfield*)exprs[0])->field;
|
|
if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) &&
|
|
exprs[0]->vtype == TYPE_FIELD &&
|
|
exprs[0]->next->vtype == TYPE_VECTOR)
|
|
{
|
|
assignop = type_storep_instr[TYPE_VECTOR];
|
|
}
|
|
else
|
|
assignop = type_storep_instr[exprs[0]->vtype];
|
|
if (assignop == VINSTR_END || !ast_compare_type(field->next, exprs[1]))
|
|
{
|
|
ast_type_to_string(field->next, ty1, sizeof(ty1));
|
|
ast_type_to_string(exprs[1], ty2, sizeof(ty2));
|
|
if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
|
|
field->next->vtype == TYPE_FUNCTION &&
|
|
exprs[1]->vtype == TYPE_FUNCTION)
|
|
{
|
|
(void)!compile_warning(ctx, WARN_ASSIGN_FUNCTION_TYPES,
|
|
"invalid types in assignment: cannot assign %s to %s", ty2, ty1);
|
|
}
|
|
else
|
|
compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) &&
|
|
exprs[0]->vtype == TYPE_FIELD &&
|
|
exprs[0]->next->vtype == TYPE_VECTOR)
|
|
{
|
|
assignop = type_store_instr[TYPE_VECTOR];
|
|
}
|
|
else {
|
|
assignop = type_store_instr[exprs[0]->vtype];
|
|
}
|
|
|
|
if (assignop == VINSTR_END) {
|
|
ast_type_to_string(exprs[0], ty1, sizeof(ty1));
|
|
ast_type_to_string(exprs[1], ty2, sizeof(ty2));
|
|
compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
|
|
}
|
|
else if (!ast_compare_type(exprs[0], exprs[1]))
|
|
{
|
|
ast_type_to_string(exprs[0], ty1, sizeof(ty1));
|
|
ast_type_to_string(exprs[1], ty2, sizeof(ty2));
|
|
if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
|
|
exprs[0]->vtype == TYPE_FUNCTION &&
|
|
exprs[1]->vtype == TYPE_FUNCTION)
|
|
{
|
|
(void)!compile_warning(ctx, WARN_ASSIGN_FUNCTION_TYPES,
|
|
"invalid types in assignment: cannot assign %s to %s", ty2, ty1);
|
|
}
|
|
else
|
|
compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
|
|
}
|
|
}
|
|
if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
|
|
compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
|
|
}
|
|
out = (ast_expression*)ast_store_new(ctx, assignop, exprs[0], exprs[1]);
|
|
break;
|
|
case opid3('+','+','P'):
|
|
case opid3('-','-','P'):
|
|
/* prefix ++ */
|
|
if (exprs[0]->vtype != TYPE_FLOAT) {
|
|
ast_type_to_string(exprs[0], ty1, sizeof(ty1));
|
|
compile_error(ast_ctx(exprs[0]), "invalid type for prefix increment: %s", ty1);
|
|
return false;
|
|
}
|
|
if (op->id == opid3('+','+','P'))
|
|
addop = INSTR_ADD_F;
|
|
else
|
|
addop = INSTR_SUB_F;
|
|
if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
|
|
compile_error(ast_ctx(exprs[0]), "assignment to constant `%s`", asvalue[0]->name);
|
|
}
|
|
if (ast_istype(exprs[0], ast_entfield)) {
|
|
out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
|
|
exprs[0],
|
|
(ast_expression*)parser_const_float_1(parser));
|
|
} else {
|
|
out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
|
|
exprs[0],
|
|
(ast_expression*)parser_const_float_1(parser));
|
|
}
|
|
break;
|
|
case opid3('S','+','+'):
|
|
case opid3('S','-','-'):
|
|
/* prefix ++ */
|
|
if (exprs[0]->vtype != TYPE_FLOAT) {
|
|
ast_type_to_string(exprs[0], ty1, sizeof(ty1));
|
|
compile_error(ast_ctx(exprs[0]), "invalid type for suffix increment: %s", ty1);
|
|
return false;
|
|
}
|
|
if (op->id == opid3('S','+','+')) {
|
|
addop = INSTR_ADD_F;
|
|
subop = INSTR_SUB_F;
|
|
} else {
|
|
addop = INSTR_SUB_F;
|
|
subop = INSTR_ADD_F;
|
|
}
|
|
if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
|
|
compile_error(ast_ctx(exprs[0]), "assignment to constant `%s`", asvalue[0]->name);
|
|
}
|
|
if (ast_istype(exprs[0], ast_entfield)) {
|
|
out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
|
|
exprs[0],
|
|
(ast_expression*)parser_const_float_1(parser));
|
|
} else {
|
|
out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
|
|
exprs[0],
|
|
(ast_expression*)parser_const_float_1(parser));
|
|
}
|
|
if (!out)
|
|
return false;
|
|
out = (ast_expression*)ast_binary_new(ctx, subop,
|
|
out,
|
|
(ast_expression*)parser_const_float_1(parser));
|
|
break;
|
|
case opid2('+','='):
|
|
case opid2('-','='):
|
|
if (exprs[0]->vtype != exprs[1]->vtype ||
|
|
(exprs[0]->vtype != TYPE_VECTOR && exprs[0]->vtype != TYPE_FLOAT) )
|
|
{
|
|
ast_type_to_string(exprs[0], ty1, sizeof(ty1));
|
|
ast_type_to_string(exprs[1], ty2, sizeof(ty2));
|
|
compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
|
|
ty1, ty2);
|
|
return false;
|
|
}
|
|
if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
|
|
compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
|
|
}
|
|
if (ast_istype(exprs[0], ast_entfield))
|
|
assignop = type_storep_instr[exprs[0]->vtype];
|
|
else
|
|
assignop = type_store_instr[exprs[0]->vtype];
|
|
switch (exprs[0]->vtype) {
|
|
case TYPE_FLOAT:
|
|
out = (ast_expression*)ast_binstore_new(ctx, assignop,
|
|
(op->id == opid2('+','=') ? INSTR_ADD_F : INSTR_SUB_F),
|
|
exprs[0], exprs[1]);
|
|
break;
|
|
case TYPE_VECTOR:
|
|
out = (ast_expression*)ast_binstore_new(ctx, assignop,
|
|
(op->id == opid2('+','=') ? INSTR_ADD_V : INSTR_SUB_V),
|
|
exprs[0], exprs[1]);
|
|
break;
|
|
default:
|
|
compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
|
|
type_name[exprs[0]->vtype],
|
|
type_name[exprs[1]->vtype]);
|
|
return false;
|
|
};
|
|
break;
|
|
case opid2('*','='):
|
|
case opid2('/','='):
|
|
if (exprs[1]->vtype != TYPE_FLOAT ||
|
|
!(exprs[0]->vtype == TYPE_FLOAT ||
|
|
exprs[0]->vtype == TYPE_VECTOR))
|
|
{
|
|
ast_type_to_string(exprs[0], ty1, sizeof(ty1));
|
|
ast_type_to_string(exprs[1], ty2, sizeof(ty2));
|
|
compile_error(ctx, "invalid types used in expression: %s and %s",
|
|
ty1, ty2);
|
|
return false;
|
|
}
|
|
if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
|
|
compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
|
|
}
|
|
if (ast_istype(exprs[0], ast_entfield))
|
|
assignop = type_storep_instr[exprs[0]->vtype];
|
|
else
|
|
assignop = type_store_instr[exprs[0]->vtype];
|
|
switch (exprs[0]->vtype) {
|
|
case TYPE_FLOAT:
|
|
out = (ast_expression*)ast_binstore_new(ctx, assignop,
|
|
(op->id == opid2('*','=') ? INSTR_MUL_F : INSTR_DIV_F),
|
|
exprs[0], exprs[1]);
|
|
break;
|
|
case TYPE_VECTOR:
|
|
if (op->id == opid2('*','=')) {
|
|
out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
|
|
exprs[0], exprs[1]);
|
|
} else {
|
|
/* there's no DIV_VF */
|
|
if (CanConstFold1(exprs[1])) {
|
|
out = (ast_expression*)parser_const_float(parser, 1.0 / ConstF(1));
|
|
} else {
|
|
out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F,
|
|
(ast_expression*)parser_const_float_1(parser),
|
|
exprs[1]);
|
|
}
|
|
if (!out) {
|
|
compile_error(ctx, "internal error: failed to generate division");
|
|
return false;
|
|
}
|
|
out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
|
|
exprs[0], out);
|
|
}
|
|
break;
|
|
default:
|
|
compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
|
|
type_name[exprs[0]->vtype],
|
|
type_name[exprs[1]->vtype]);
|
|
return false;
|
|
};
|
|
break;
|
|
case opid2('&','='):
|
|
case opid2('|','='):
|
|
if (NotSameType(TYPE_FLOAT)) {
|
|
ast_type_to_string(exprs[0], ty1, sizeof(ty1));
|
|
ast_type_to_string(exprs[1], ty2, sizeof(ty2));
|
|
compile_error(ctx, "invalid types used in expression: %s and %s",
|
|
ty1, ty2);
|
|
return false;
|
|
}
|
|
if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
|
|
compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
|
|
}
|
|
if (ast_istype(exprs[0], ast_entfield))
|
|
assignop = type_storep_instr[exprs[0]->vtype];
|
|
else
|
|
assignop = type_store_instr[exprs[0]->vtype];
|
|
out = (ast_expression*)ast_binstore_new(ctx, assignop,
|
|
(op->id == opid2('&','=') ? INSTR_BITAND : INSTR_BITOR),
|
|
exprs[0], exprs[1]);
|
|
break;
|
|
case opid3('&','~','='):
|
|
/* This is like: a &= ~(b);
|
|
* But QC has no bitwise-not, so we implement it as
|
|
* a -= a & (b);
|
|
*/
|
|
if (NotSameType(TYPE_FLOAT)) {
|
|
ast_type_to_string(exprs[0], ty1, sizeof(ty1));
|
|
ast_type_to_string(exprs[1], ty2, sizeof(ty2));
|
|
compile_error(ctx, "invalid types used in expression: %s and %s",
|
|
ty1, ty2);
|
|
return false;
|
|
}
|
|
if (ast_istype(exprs[0], ast_entfield))
|
|
assignop = type_storep_instr[exprs[0]->vtype];
|
|
else
|
|
assignop = type_store_instr[exprs[0]->vtype];
|
|
out = (ast_expression*)ast_binary_new(ctx, INSTR_BITAND, exprs[0], exprs[1]);
|
|
if (!out)
|
|
return false;
|
|
if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
|
|
compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
|
|
}
|
|
asbinstore = ast_binstore_new(ctx, assignop, INSTR_SUB_F, exprs[0], out);
|
|
asbinstore->keep_dest = true;
|
|
out = (ast_expression*)asbinstore;
|
|
break;
|
|
|
|
case opid2('~', 'P'):
|
|
if (exprs[0]->vtype != TYPE_FLOAT) {
|
|
ast_type_to_string(exprs[0], ty1, sizeof(ty1));
|
|
compile_error(ast_ctx(exprs[0]), "invalid type for bit not: %s", ty1);
|
|
return false;
|
|
}
|
|
|
|
if(CanConstFold1(exprs[0]))
|
|
out = (ast_expression*)parser_const_float(parser, ~(qcint)ConstF(0));
|
|
else
|
|
out = (ast_expression*)
|
|
ast_binary_new(ctx, INSTR_SUB_F, (ast_expression*)parser_const_float_neg1(parser), exprs[0]);
|
|
break;
|
|
}
|
|
#undef NotSameType
|
|
|
|
if (!out) {
|
|
compile_error(ctx, "failed to apply operator %s", op->op);
|
|
return false;
|
|
}
|
|
|
|
vec_push(sy->out, syexp(ctx, out));
|
|
return true;
|
|
}
|
|
|
|
static bool parser_close_call(parser_t *parser, shunt *sy)
|
|
{
|
|
/* was a function call */
|
|
ast_expression *fun;
|
|
ast_value *funval = NULL;
|
|
ast_call *call;
|
|
|
|
size_t fid;
|
|
size_t paramcount, i;
|
|
|
|
fid = vec_last(sy->ops).off;
|
|
vec_shrinkby(sy->ops, 1);
|
|
|
|
/* out[fid] is the function
|
|
* everything above is parameters...
|
|
*/
|
|
if (!vec_size(sy->argc)) {
|
|
parseerror(parser, "internal error: no argument counter available");
|
|
return false;
|
|
}
|
|
|
|
paramcount = vec_last(sy->argc);
|
|
vec_pop(sy->argc);
|
|
|
|
if (vec_size(sy->out) < fid) {
|
|
parseerror(parser, "internal error: broken function call%lu < %lu+%lu\n",
|
|
(unsigned long)vec_size(sy->out),
|
|
(unsigned long)fid,
|
|
(unsigned long)paramcount);
|
|
return false;
|
|
}
|
|
|
|
fun = sy->out[fid].out;
|
|
|
|
if (fun == intrinsic_debug_typestring) {
|
|
char ty[1024];
|
|
if (fid+2 != vec_size(sy->out) ||
|
|
vec_last(sy->out).block)
|
|
{
|
|
parseerror(parser, "intrinsic __builtin_debug_typestring requires exactly 1 parameter");
|
|
return false;
|
|
}
|
|
ast_type_to_string(vec_last(sy->out).out, ty, sizeof(ty));
|
|
ast_unref(vec_last(sy->out).out);
|
|
sy->out[fid] = syexp(ast_ctx(vec_last(sy->out).out),
|
|
(ast_expression*)parser_const_string(parser, ty, false));
|
|
vec_shrinkby(sy->out, 1);
|
|
return true;
|
|
}
|
|
|
|
call = ast_call_new(sy->ops[vec_size(sy->ops)].ctx, fun);
|
|
if (!call)
|
|
return false;
|
|
|
|
if (fid+1 < vec_size(sy->out))
|
|
++paramcount;
|
|
|
|
if (fid+1 + paramcount != vec_size(sy->out)) {
|
|
parseerror(parser, "internal error: parameter count mismatch: (%lu+1+%lu), %lu",
|
|
(unsigned long)fid, (unsigned long)paramcount, (unsigned long)vec_size(sy->out));
|
|
return false;
|
|
}
|
|
|
|
for (i = 0; i < paramcount; ++i)
|
|
vec_push(call->params, sy->out[fid+1 + i].out);
|
|
vec_shrinkby(sy->out, paramcount);
|
|
(void)!ast_call_check_types(call);
|
|
if (parser->max_param_count < paramcount)
|
|
parser->max_param_count = paramcount;
|
|
|
|
if (ast_istype(fun, ast_value)) {
|
|
funval = (ast_value*)fun;
|
|
if ((fun->flags & AST_FLAG_VARIADIC) &&
|
|
!(/*funval->cvq == CV_CONST && */ funval->hasvalue && funval->constval.vfunc->builtin))
|
|
{
|
|
call->va_count = (ast_expression*)parser_const_float(parser, (double)paramcount);
|
|
}
|
|
}
|
|
|
|
/* overwrite fid, the function, with a call */
|
|
sy->out[fid] = syexp(call->expression.node.context, (ast_expression*)call);
|
|
|
|
if (fun->vtype != TYPE_FUNCTION) {
|
|
parseerror(parser, "not a function (%s)", type_name[fun->vtype]);
|
|
return false;
|
|
}
|
|
|
|
if (!fun->next) {
|
|
parseerror(parser, "could not determine function return type");
|
|
return false;
|
|
} else {
|
|
ast_value *fval = (ast_istype(fun, ast_value) ? ((ast_value*)fun) : NULL);
|
|
|
|
if (fun->flags & AST_FLAG_DEPRECATED) {
|
|
if (!fval) {
|
|
return !parsewarning(parser, WARN_DEPRECATED,
|
|
"call to function (which is marked deprecated)\n",
|
|
"-> it has been declared here: %s:%i",
|
|
ast_ctx(fun).file, ast_ctx(fun).line);
|
|
}
|
|
if (!fval->desc) {
|
|
return !parsewarning(parser, WARN_DEPRECATED,
|
|
"call to `%s` (which is marked deprecated)\n"
|
|
"-> `%s` declared here: %s:%i",
|
|
fval->name, fval->name, ast_ctx(fun).file, ast_ctx(fun).line);
|
|
}
|
|
return !parsewarning(parser, WARN_DEPRECATED,
|
|
"call to `%s` (deprecated: %s)\n"
|
|
"-> `%s` declared here: %s:%i",
|
|
fval->name, fval->desc, fval->name, ast_ctx(fun).file,
|
|
ast_ctx(fun).line);
|
|
}
|
|
|
|
if (vec_size(fun->params) != paramcount &&
|
|
!((fun->flags & AST_FLAG_VARIADIC) &&
|
|
vec_size(fun->params) < paramcount))
|
|
{
|
|
const char *fewmany = (vec_size(fun->params) > paramcount) ? "few" : "many";
|
|
if (fval)
|
|
return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT,
|
|
"too %s parameters for call to %s: expected %i, got %i\n"
|
|
" -> `%s` has been declared here: %s:%i",
|
|
fewmany, fval->name, (int)vec_size(fun->params), (int)paramcount,
|
|
fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
|
|
else
|
|
return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT,
|
|
"too %s parameters for function call: expected %i, got %i\n"
|
|
" -> it has been declared here: %s:%i",
|
|
fewmany, (int)vec_size(fun->params), (int)paramcount,
|
|
ast_ctx(fun).file, (int)ast_ctx(fun).line);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool parser_close_paren(parser_t *parser, shunt *sy)
|
|
{
|
|
if (!vec_size(sy->ops)) {
|
|
parseerror(parser, "unmatched closing paren");
|
|
return false;
|
|
}
|
|
|
|
while (vec_size(sy->ops)) {
|
|
if (vec_last(sy->ops).isparen) {
|
|
if (vec_last(sy->paren) == PAREN_FUNC) {
|
|
vec_pop(sy->paren);
|
|
if (!parser_close_call(parser, sy))
|
|
return false;
|
|
break;
|
|
}
|
|
if (vec_last(sy->paren) == PAREN_EXPR) {
|
|
vec_pop(sy->paren);
|
|
if (!vec_size(sy->out)) {
|
|
compile_error(vec_last(sy->ops).ctx, "empty paren expression");
|
|
vec_shrinkby(sy->ops, 1);
|
|
return false;
|
|
}
|
|
vec_shrinkby(sy->ops, 1);
|
|
break;
|
|
}
|
|
if (vec_last(sy->paren) == PAREN_INDEX) {
|
|
vec_pop(sy->paren);
|
|
/* pop off the parenthesis */
|
|
vec_shrinkby(sy->ops, 1);
|
|
/* then apply the index operator */
|
|
if (!parser_sy_apply_operator(parser, sy))
|
|
return false;
|
|
break;
|
|
}
|
|
if (vec_last(sy->paren) == PAREN_TERNARY1) {
|
|
vec_last(sy->paren) = PAREN_TERNARY2;
|
|
/* pop off the parenthesis */
|
|
vec_shrinkby(sy->ops, 1);
|
|
break;
|
|
}
|
|
compile_error(vec_last(sy->ops).ctx, "invalid parenthesis");
|
|
return false;
|
|
}
|
|
if (!parser_sy_apply_operator(parser, sy))
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static void parser_reclassify_token(parser_t *parser)
|
|
{
|
|
size_t i;
|
|
for (i = 0; i < operator_count; ++i) {
|
|
if (!strcmp(parser_tokval(parser), operators[i].op)) {
|
|
parser->tok = TOKEN_OPERATOR;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
static ast_expression* parse_vararg_do(parser_t *parser)
|
|
{
|
|
ast_expression *idx, *out;
|
|
ast_value *typevar;
|
|
ast_value *funtype = parser->function->vtype;
|
|
|
|
lex_ctx ctx = parser_ctx(parser);
|
|
|
|
if (!parser_next(parser) || parser->tok != '(') {
|
|
parseerror(parser, "expected parameter index and type in parenthesis");
|
|
return NULL;
|
|
}
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "error parsing parameter index");
|
|
return NULL;
|
|
}
|
|
|
|
idx = parse_expression_leave(parser, true, false, false);
|
|
if (!idx)
|
|
return NULL;
|
|
|
|
if (parser->tok != ',') {
|
|
ast_unref(idx);
|
|
parseerror(parser, "expected comma after parameter index");
|
|
return NULL;
|
|
}
|
|
|
|
if (!parser_next(parser) || (parser->tok != TOKEN_IDENT && parser->tok != TOKEN_TYPENAME)) {
|
|
ast_unref(idx);
|
|
parseerror(parser, "expected typename for vararg");
|
|
return NULL;
|
|
}
|
|
|
|
typevar = parse_typename(parser, NULL, NULL);
|
|
if (!typevar) {
|
|
ast_unref(idx);
|
|
return NULL;
|
|
}
|
|
|
|
if (parser->tok != ')') {
|
|
ast_unref(idx);
|
|
ast_delete(typevar);
|
|
parseerror(parser, "expected closing paren");
|
|
return NULL;
|
|
}
|
|
|
|
#if 0
|
|
if (!parser_next(parser)) {
|
|
ast_unref(idx);
|
|
ast_delete(typevar);
|
|
parseerror(parser, "parse error after vararg");
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
if (!parser->function->varargs) {
|
|
ast_unref(idx);
|
|
ast_delete(typevar);
|
|
parseerror(parser, "function has no variable argument list");
|
|
return NULL;
|
|
}
|
|
|
|
if (funtype->expression.varparam &&
|
|
!ast_compare_type((ast_expression*)typevar, (ast_expression*)funtype->expression.varparam))
|
|
{
|
|
char ty1[1024];
|
|
char ty2[1024];
|
|
ast_type_to_string((ast_expression*)typevar, ty1, sizeof(ty1));
|
|
ast_type_to_string((ast_expression*)funtype->expression.varparam, ty2, sizeof(ty2));
|
|
compile_error(ast_ctx(typevar),
|
|
"function was declared to take varargs of type `%s`, requested type is: %s",
|
|
ty2, ty1);
|
|
}
|
|
|
|
out = (ast_expression*)ast_array_index_new(ctx, (ast_expression*)(parser->function->varargs), idx);
|
|
ast_type_adopt(out, typevar);
|
|
ast_delete(typevar);
|
|
return out;
|
|
}
|
|
|
|
static ast_expression* parse_vararg(parser_t *parser)
|
|
{
|
|
bool old_noops = parser->lex->flags.noops;
|
|
|
|
ast_expression *out;
|
|
|
|
parser->lex->flags.noops = true;
|
|
out = parse_vararg_do(parser);
|
|
|
|
parser->lex->flags.noops = old_noops;
|
|
return out;
|
|
}
|
|
|
|
/* not to be exposed */
|
|
extern bool ftepp_predef_exists(const char *name);
|
|
|
|
static bool parse_sya_operand(parser_t *parser, shunt *sy, bool with_labels)
|
|
{
|
|
if (OPTS_FLAG(TRANSLATABLE_STRINGS) &&
|
|
parser->tok == TOKEN_IDENT &&
|
|
!strcmp(parser_tokval(parser), "_"))
|
|
{
|
|
/* a translatable string */
|
|
ast_value *val;
|
|
|
|
parser->lex->flags.noops = true;
|
|
if (!parser_next(parser) || parser->tok != '(') {
|
|
parseerror(parser, "use _(\"string\") to create a translatable string constant");
|
|
return false;
|
|
}
|
|
parser->lex->flags.noops = false;
|
|
if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
|
|
parseerror(parser, "expected a constant string in translatable-string extension");
|
|
return false;
|
|
}
|
|
val = parser_const_string(parser, parser_tokval(parser), true);
|
|
if (!val)
|
|
return false;
|
|
vec_push(sy->out, syexp(parser_ctx(parser), (ast_expression*)val));
|
|
|
|
if (!parser_next(parser) || parser->tok != ')') {
|
|
parseerror(parser, "expected closing paren after translatable string");
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
else if (parser->tok == TOKEN_DOTS)
|
|
{
|
|
ast_expression *va;
|
|
if (!OPTS_FLAG(VARIADIC_ARGS)) {
|
|
parseerror(parser, "cannot access varargs (try -fvariadic-args)");
|
|
return false;
|
|
}
|
|
va = parse_vararg(parser);
|
|
if (!va)
|
|
return false;
|
|
vec_push(sy->out, syexp(parser_ctx(parser), va));
|
|
return true;
|
|
}
|
|
else if (parser->tok == TOKEN_FLOATCONST) {
|
|
ast_value *val;
|
|
val = parser_const_float(parser, (parser_token(parser)->constval.f));
|
|
if (!val)
|
|
return false;
|
|
vec_push(sy->out, syexp(parser_ctx(parser), (ast_expression*)val));
|
|
return true;
|
|
}
|
|
else if (parser->tok == TOKEN_INTCONST || parser->tok == TOKEN_CHARCONST) {
|
|
ast_value *val;
|
|
val = parser_const_float(parser, (double)(parser_token(parser)->constval.i));
|
|
if (!val)
|
|
return false;
|
|
vec_push(sy->out, syexp(parser_ctx(parser), (ast_expression*)val));
|
|
return true;
|
|
}
|
|
else if (parser->tok == TOKEN_STRINGCONST) {
|
|
ast_value *val;
|
|
val = parser_const_string(parser, parser_tokval(parser), false);
|
|
if (!val)
|
|
return false;
|
|
vec_push(sy->out, syexp(parser_ctx(parser), (ast_expression*)val));
|
|
return true;
|
|
}
|
|
else if (parser->tok == TOKEN_VECTORCONST) {
|
|
ast_value *val;
|
|
val = parser_const_vector(parser, parser_token(parser)->constval.v);
|
|
if (!val)
|
|
return false;
|
|
vec_push(sy->out, syexp(parser_ctx(parser), (ast_expression*)val));
|
|
return true;
|
|
}
|
|
else if (parser->tok == TOKEN_IDENT)
|
|
{
|
|
const char *ctoken = parser_tokval(parser);
|
|
ast_expression *prev = vec_size(sy->out) ? vec_last(sy->out).out : NULL;
|
|
ast_expression *var;
|
|
/* a_vector.{x,y,z} */
|
|
if (!vec_size(sy->ops) ||
|
|
!vec_last(sy->ops).etype ||
|
|
operators[vec_last(sy->ops).etype-1].id != opid1('.') ||
|
|
(prev >= intrinsic_debug_typestring &&
|
|
prev <= intrinsic_debug_typestring))
|
|
{
|
|
/* When adding more intrinsics, fix the above condition */
|
|
prev = NULL;
|
|
}
|
|
if (prev && prev->vtype == TYPE_VECTOR && ctoken[0] >= 'x' && ctoken[0] <= 'z' && !ctoken[1])
|
|
{
|
|
var = (ast_expression*)parser->const_vec[ctoken[0]-'x'];
|
|
} else {
|
|
var = parser_find_var(parser, parser_tokval(parser));
|
|
if (!var)
|
|
var = parser_find_field(parser, parser_tokval(parser));
|
|
}
|
|
if (!var && with_labels) {
|
|
var = (ast_expression*)parser_find_label(parser, parser_tokval(parser));
|
|
if (!with_labels) {
|
|
ast_label *lbl = ast_label_new(parser_ctx(parser), parser_tokval(parser), true);
|
|
var = (ast_expression*)lbl;
|
|
vec_push(parser->labels, lbl);
|
|
}
|
|
}
|
|
if (!var && !strcmp(parser_tokval(parser), "__FUNC__"))
|
|
var = (ast_expression*)parser_const_string(parser, parser->function->name, false);
|
|
if (!var) {
|
|
/* intrinsics */
|
|
if (!strcmp(parser_tokval(parser), "__builtin_debug_typestring")) {
|
|
var = (ast_expression*)intrinsic_debug_typestring;
|
|
}
|
|
/* now we try for the real intrinsic hashtable. If the string
|
|
* begins with __builtin, we simply skip past it, otherwise we
|
|
* use the identifier as is.
|
|
*/
|
|
else if (!strncmp(parser_tokval(parser), "__builtin_", 10)) {
|
|
var = intrin_func(parser, parser_tokval(parser) + 10 /* skip __builtin */);
|
|
}
|
|
|
|
if (!var) {
|
|
char *correct = NULL;
|
|
size_t i;
|
|
|
|
/*
|
|
* sometimes people use preprocessing predefs without enabling them
|
|
* i've done this thousands of times already myself. Lets check for
|
|
* it in the predef table. And diagnose it better :)
|
|
*/
|
|
if (!OPTS_FLAG(FTEPP_PREDEFS) && ftepp_predef_exists(parser_tokval(parser))) {
|
|
parseerror(parser, "unexpected ident: %s (use -fftepp-predef to enable pre-defined macros)", parser_tokval(parser));
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* TODO: determine the best score for the identifier: be it
|
|
* a variable, a field.
|
|
*
|
|
* We should also consider adding correction tables for
|
|
* other things as well.
|
|
*/
|
|
if (OPTS_OPTION_BOOL(OPTION_CORRECTION)) {
|
|
correction_t corr;
|
|
correct_init(&corr);
|
|
|
|
for (i = 0; i < vec_size(parser->correct_variables); i++) {
|
|
correct = correct_str(&corr, parser->correct_variables[i], parser_tokval(parser));
|
|
if (strcmp(correct, parser_tokval(parser))) {
|
|
break;
|
|
} else if (correct) {
|
|
mem_d(correct);
|
|
correct = NULL;
|
|
}
|
|
}
|
|
correct_free(&corr);
|
|
|
|
if (correct) {
|
|
parseerror(parser, "unexpected ident: %s (did you mean %s?)", parser_tokval(parser), correct);
|
|
mem_d(correct);
|
|
return false;
|
|
}
|
|
}
|
|
parseerror(parser, "unexpected ident: %s", parser_tokval(parser));
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (ast_istype(var, ast_value)) {
|
|
((ast_value*)var)->uses++;
|
|
}
|
|
else if (ast_istype(var, ast_member)) {
|
|
ast_member *mem = (ast_member*)var;
|
|
if (ast_istype(mem->owner, ast_value))
|
|
((ast_value*)(mem->owner))->uses++;
|
|
}
|
|
}
|
|
vec_push(sy->out, syexp(parser_ctx(parser), var));
|
|
return true;
|
|
}
|
|
parseerror(parser, "unexpected token `%s`", parser_tokval(parser));
|
|
return false;
|
|
}
|
|
|
|
static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels)
|
|
{
|
|
ast_expression *expr = NULL;
|
|
shunt sy;
|
|
size_t i;
|
|
bool wantop = false;
|
|
/* only warn once about an assignment in a truth value because the current code
|
|
* would trigger twice on: if(a = b && ...), once for the if-truth-value, once for the && part
|
|
*/
|
|
bool warn_truthvalue = true;
|
|
|
|
/* count the parens because an if starts with one, so the
|
|
* end of a condition is an unmatched closing paren
|
|
*/
|
|
int ternaries = 0;
|
|
|
|
memset(&sy, 0, sizeof(sy));
|
|
|
|
parser->lex->flags.noops = false;
|
|
|
|
parser_reclassify_token(parser);
|
|
|
|
while (true)
|
|
{
|
|
if (parser->tok == TOKEN_TYPENAME) {
|
|
parseerror(parser, "unexpected typename");
|
|
goto onerr;
|
|
}
|
|
|
|
if (parser->tok == TOKEN_OPERATOR)
|
|
{
|
|
/* classify the operator */
|
|
const oper_info *op;
|
|
const oper_info *olast = NULL;
|
|
size_t o;
|
|
for (o = 0; o < operator_count; ++o) {
|
|
if (((!(operators[o].flags & OP_PREFIX) == !!wantop)) &&
|
|
/* !(operators[o].flags & OP_SUFFIX) && / * remove this */
|
|
!strcmp(parser_tokval(parser), operators[o].op))
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
if (o == operator_count) {
|
|
compile_error(parser_ctx(parser), "unknown operator: %s", parser_tokval(parser));
|
|
goto onerr;
|
|
}
|
|
/* found an operator */
|
|
op = &operators[o];
|
|
|
|
/* when declaring variables, a comma starts a new variable */
|
|
if (op->id == opid1(',') && !vec_size(sy.paren) && stopatcomma) {
|
|
/* fixup the token */
|
|
parser->tok = ',';
|
|
break;
|
|
}
|
|
|
|
/* a colon without a pervious question mark cannot be a ternary */
|
|
if (!ternaries && op->id == opid2(':','?')) {
|
|
parser->tok = ':';
|
|
break;
|
|
}
|
|
|
|
if (op->id == opid1(',')) {
|
|
if (vec_size(sy.paren) && vec_last(sy.paren) == PAREN_TERNARY2) {
|
|
(void)!parsewarning(parser, WARN_TERNARY_PRECEDENCE, "suggesting parenthesis around ternary expression");
|
|
}
|
|
}
|
|
|
|
if (vec_size(sy.ops) && !vec_last(sy.ops).isparen)
|
|
olast = &operators[vec_last(sy.ops).etype-1];
|
|
|
|
#define IsAssignOp(x) (\
|
|
(x) == opid1('=') || \
|
|
(x) == opid2('+','=') || \
|
|
(x) == opid2('-','=') || \
|
|
(x) == opid2('*','=') || \
|
|
(x) == opid2('/','=') || \
|
|
(x) == opid2('%','=') || \
|
|
(x) == opid2('&','=') || \
|
|
(x) == opid2('|','=') || \
|
|
(x) == opid3('&','~','=') \
|
|
)
|
|
if (warn_truthvalue) {
|
|
if ( (olast && IsAssignOp(olast->id) && (op->id == opid2('&','&') || op->id == opid2('|','|'))) ||
|
|
(olast && IsAssignOp(op->id) && (olast->id == opid2('&','&') || olast->id == opid2('|','|'))) ||
|
|
(truthvalue && !vec_size(sy.paren) && IsAssignOp(op->id))
|
|
)
|
|
{
|
|
(void)!parsewarning(parser, WARN_PARENTHESIS, "suggesting parenthesis around assignment used as truth value");
|
|
warn_truthvalue = false;
|
|
}
|
|
}
|
|
|
|
while (olast && (
|
|
(op->prec < olast->prec) ||
|
|
(op->assoc == ASSOC_LEFT && op->prec <= olast->prec) ) )
|
|
{
|
|
if (!parser_sy_apply_operator(parser, &sy))
|
|
goto onerr;
|
|
if (vec_size(sy.ops) && !vec_last(sy.ops).isparen)
|
|
olast = &operators[vec_last(sy.ops).etype-1];
|
|
else
|
|
olast = NULL;
|
|
}
|
|
|
|
if (op->id == opid1('(')) {
|
|
if (wantop) {
|
|
size_t sycount = vec_size(sy.out);
|
|
/* we expected an operator, this is the function-call operator */
|
|
vec_push(sy.paren, PAREN_FUNC);
|
|
vec_push(sy.ops, syparen(parser_ctx(parser), sycount-1));
|
|
vec_push(sy.argc, 0);
|
|
} else {
|
|
vec_push(sy.paren, PAREN_EXPR);
|
|
vec_push(sy.ops, syparen(parser_ctx(parser), 0));
|
|
}
|
|
wantop = false;
|
|
} else if (op->id == opid1('[')) {
|
|
if (!wantop) {
|
|
parseerror(parser, "unexpected array subscript");
|
|
goto onerr;
|
|
}
|
|
vec_push(sy.paren, PAREN_INDEX);
|
|
/* push both the operator and the paren, this makes life easier */
|
|
vec_push(sy.ops, syop(parser_ctx(parser), op));
|
|
vec_push(sy.ops, syparen(parser_ctx(parser), 0));
|
|
wantop = false;
|
|
} else if (op->id == opid2('?',':')) {
|
|
vec_push(sy.ops, syop(parser_ctx(parser), op));
|
|
vec_push(sy.ops, syparen(parser_ctx(parser), 0));
|
|
wantop = false;
|
|
++ternaries;
|
|
vec_push(sy.paren, PAREN_TERNARY1);
|
|
} else if (op->id == opid2(':','?')) {
|
|
if (!vec_size(sy.paren)) {
|
|
parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
|
|
goto onerr;
|
|
}
|
|
if (vec_last(sy.paren) != PAREN_TERNARY1) {
|
|
parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
|
|
goto onerr;
|
|
}
|
|
if (!parser_close_paren(parser, &sy))
|
|
goto onerr;
|
|
vec_push(sy.ops, syop(parser_ctx(parser), op));
|
|
wantop = false;
|
|
--ternaries;
|
|
} else {
|
|
vec_push(sy.ops, syop(parser_ctx(parser), op));
|
|
wantop = !!(op->flags & OP_SUFFIX);
|
|
}
|
|
}
|
|
else if (parser->tok == ')') {
|
|
while (vec_size(sy.paren) && vec_last(sy.paren) == PAREN_TERNARY2) {
|
|
if (!parser_sy_apply_operator(parser, &sy))
|
|
goto onerr;
|
|
}
|
|
if (!vec_size(sy.paren))
|
|
break;
|
|
if (wantop) {
|
|
if (vec_last(sy.paren) == PAREN_TERNARY1) {
|
|
parseerror(parser, "mismatched parentheses (closing paren in ternary expression?)");
|
|
goto onerr;
|
|
}
|
|
if (!parser_close_paren(parser, &sy))
|
|
goto onerr;
|
|
} else {
|
|
/* must be a function call without parameters */
|
|
if (vec_last(sy.paren) != PAREN_FUNC) {
|
|
parseerror(parser, "closing paren in invalid position");
|
|
goto onerr;
|
|
}
|
|
if (!parser_close_paren(parser, &sy))
|
|
goto onerr;
|
|
}
|
|
wantop = true;
|
|
}
|
|
else if (parser->tok == '(') {
|
|
parseerror(parser, "internal error: '(' should be classified as operator");
|
|
goto onerr;
|
|
}
|
|
else if (parser->tok == '[') {
|
|
parseerror(parser, "internal error: '[' should be classified as operator");
|
|
goto onerr;
|
|
}
|
|
else if (parser->tok == ']') {
|
|
while (vec_size(sy.paren) && vec_last(sy.paren) == PAREN_TERNARY2) {
|
|
if (!parser_sy_apply_operator(parser, &sy))
|
|
goto onerr;
|
|
}
|
|
if (!vec_size(sy.paren))
|
|
break;
|
|
if (vec_last(sy.paren) != PAREN_INDEX) {
|
|
parseerror(parser, "mismatched parentheses, unexpected ']'");
|
|
goto onerr;
|
|
}
|
|
if (!parser_close_paren(parser, &sy))
|
|
goto onerr;
|
|
wantop = true;
|
|
}
|
|
else if (!wantop) {
|
|
if (!parse_sya_operand(parser, &sy, with_labels))
|
|
goto onerr;
|
|
#if 0
|
|
if (vec_size(sy.paren) && vec_last(sy.ops).isparen && vec_last(sy.paren) == PAREN_FUNC)
|
|
vec_last(sy.argc)++;
|
|
#endif
|
|
wantop = true;
|
|
}
|
|
else {
|
|
/* in this case we might want to allow constant string concatenation */
|
|
bool concatenated = false;
|
|
if (parser->tok == TOKEN_STRINGCONST && vec_size(sy.out)) {
|
|
ast_expression *lexpr = vec_last(sy.out).out;
|
|
if (ast_istype(lexpr, ast_value)) {
|
|
ast_value *last = (ast_value*)lexpr;
|
|
if (last->isimm == true && last->cvq == CV_CONST &&
|
|
last->hasvalue && last->expression.vtype == TYPE_STRING)
|
|
{
|
|
char *newstr = NULL;
|
|
util_asprintf(&newstr, "%s%s", last->constval.vstring, parser_tokval(parser));
|
|
vec_last(sy.out).out = (ast_expression*)parser_const_string(parser, newstr, false);
|
|
mem_d(newstr);
|
|
concatenated = true;
|
|
}
|
|
}
|
|
}
|
|
if (!concatenated) {
|
|
parseerror(parser, "expected operator or end of statement");
|
|
goto onerr;
|
|
}
|
|
}
|
|
|
|
if (!parser_next(parser)) {
|
|
goto onerr;
|
|
}
|
|
if (parser->tok == ';' ||
|
|
((!vec_size(sy.paren) || (vec_size(sy.paren) == 1 && vec_last(sy.paren) == PAREN_TERNARY2)) &&
|
|
(parser->tok == ']' || parser->tok == ')' || parser->tok == '}')))
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
while (vec_size(sy.ops)) {
|
|
if (!parser_sy_apply_operator(parser, &sy))
|
|
goto onerr;
|
|
}
|
|
|
|
parser->lex->flags.noops = true;
|
|
if (vec_size(sy.out) != 1) {
|
|
parseerror(parser, "expression with not 1 but %lu output values...", (unsigned long) vec_size(sy.out));
|
|
expr = NULL;
|
|
} else
|
|
expr = sy.out[0].out;
|
|
vec_free(sy.out);
|
|
vec_free(sy.ops);
|
|
if (vec_size(sy.paren)) {
|
|
parseerror(parser, "internal error: vec_size(sy.paren) = %lu", (unsigned long)vec_size(sy.paren));
|
|
return NULL;
|
|
}
|
|
vec_free(sy.paren);
|
|
vec_free(sy.argc);
|
|
return expr;
|
|
|
|
onerr:
|
|
parser->lex->flags.noops = true;
|
|
for (i = 0; i < vec_size(sy.out); ++i) {
|
|
if (sy.out[i].out)
|
|
ast_unref(sy.out[i].out);
|
|
}
|
|
vec_free(sy.out);
|
|
vec_free(sy.ops);
|
|
vec_free(sy.paren);
|
|
vec_free(sy.argc);
|
|
return NULL;
|
|
}
|
|
|
|
static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels)
|
|
{
|
|
ast_expression *e = parse_expression_leave(parser, stopatcomma, false, with_labels);
|
|
if (!e)
|
|
return NULL;
|
|
if (parser->tok != ';') {
|
|
parseerror(parser, "semicolon expected after expression");
|
|
ast_unref(e);
|
|
return NULL;
|
|
}
|
|
if (!parser_next(parser)) {
|
|
ast_unref(e);
|
|
return NULL;
|
|
}
|
|
return e;
|
|
}
|
|
|
|
static void parser_enterblock(parser_t *parser)
|
|
{
|
|
vec_push(parser->variables, util_htnew(PARSER_HT_SIZE));
|
|
vec_push(parser->_blocklocals, vec_size(parser->_locals));
|
|
vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
|
|
vec_push(parser->_blocktypedefs, vec_size(parser->_typedefs));
|
|
vec_push(parser->_block_ctx, parser_ctx(parser));
|
|
|
|
/* corrector */
|
|
vec_push(parser->correct_variables, correct_trie_new());
|
|
vec_push(parser->correct_variables_score, NULL);
|
|
}
|
|
|
|
static bool parser_leaveblock(parser_t *parser)
|
|
{
|
|
bool rv = true;
|
|
size_t locals, typedefs;
|
|
|
|
if (vec_size(parser->variables) <= PARSER_HT_LOCALS) {
|
|
parseerror(parser, "internal error: parser_leaveblock with no block");
|
|
return false;
|
|
}
|
|
|
|
util_htdel(vec_last(parser->variables));
|
|
correct_del(vec_last(parser->correct_variables), vec_last(parser->correct_variables_score));
|
|
|
|
vec_pop(parser->variables);
|
|
vec_pop(parser->correct_variables);
|
|
vec_pop(parser->correct_variables_score);
|
|
if (!vec_size(parser->_blocklocals)) {
|
|
parseerror(parser, "internal error: parser_leaveblock with no block (2)");
|
|
return false;
|
|
}
|
|
|
|
locals = vec_last(parser->_blocklocals);
|
|
vec_pop(parser->_blocklocals);
|
|
while (vec_size(parser->_locals) != locals) {
|
|
ast_expression *e = vec_last(parser->_locals);
|
|
ast_value *v = (ast_value*)e;
|
|
vec_pop(parser->_locals);
|
|
if (ast_istype(e, ast_value) && !v->uses) {
|
|
if (compile_warning(ast_ctx(v), WARN_UNUSED_VARIABLE, "unused variable: `%s`", v->name))
|
|
rv = false;
|
|
}
|
|
}
|
|
|
|
typedefs = vec_last(parser->_blocktypedefs);
|
|
while (vec_size(parser->_typedefs) != typedefs) {
|
|
ast_delete(vec_last(parser->_typedefs));
|
|
vec_pop(parser->_typedefs);
|
|
}
|
|
util_htdel(vec_last(parser->typedefs));
|
|
vec_pop(parser->typedefs);
|
|
|
|
vec_pop(parser->_block_ctx);
|
|
|
|
return rv;
|
|
}
|
|
|
|
static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e)
|
|
{
|
|
vec_push(parser->_locals, e);
|
|
util_htset(vec_last(parser->variables), name, (void*)e);
|
|
|
|
/* corrector */
|
|
correct_add (
|
|
vec_last(parser->correct_variables),
|
|
&vec_last(parser->correct_variables_score),
|
|
name
|
|
);
|
|
}
|
|
|
|
static void parser_addglobal(parser_t *parser, const char *name, ast_expression *e)
|
|
{
|
|
vec_push(parser->globals, e);
|
|
util_htset(parser->htglobals, name, e);
|
|
|
|
/* corrector */
|
|
correct_add (
|
|
parser->correct_variables[0],
|
|
&parser->correct_variables_score[0],
|
|
name
|
|
);
|
|
}
|
|
|
|
static ast_expression* process_condition(parser_t *parser, ast_expression *cond, bool *_ifnot)
|
|
{
|
|
bool ifnot = false;
|
|
ast_unary *unary;
|
|
ast_expression *prev;
|
|
|
|
if (cond->vtype == TYPE_VOID || cond->vtype >= TYPE_VARIANT) {
|
|
char ty[1024];
|
|
ast_type_to_string(cond, ty, sizeof(ty));
|
|
compile_error(ast_ctx(cond), "invalid type for if() condition: %s", ty);
|
|
}
|
|
|
|
if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && cond->vtype == TYPE_STRING)
|
|
{
|
|
prev = cond;
|
|
cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_S, cond);
|
|
if (!cond) {
|
|
ast_unref(prev);
|
|
parseerror(parser, "internal error: failed to process condition");
|
|
return NULL;
|
|
}
|
|
ifnot = !ifnot;
|
|
}
|
|
else if (OPTS_FLAG(CORRECT_LOGIC) && cond->vtype == TYPE_VECTOR)
|
|
{
|
|
/* vector types need to be cast to true booleans */
|
|
ast_binary *bin = (ast_binary*)cond;
|
|
if (!OPTS_FLAG(PERL_LOGIC) || !ast_istype(cond, ast_binary) || !(bin->op == INSTR_AND || bin->op == INSTR_OR))
|
|
{
|
|
/* in perl-logic, AND and OR take care of the -fcorrect-logic */
|
|
prev = cond;
|
|
cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_V, cond);
|
|
if (!cond) {
|
|
ast_unref(prev);
|
|
parseerror(parser, "internal error: failed to process condition");
|
|
return NULL;
|
|
}
|
|
ifnot = !ifnot;
|
|
}
|
|
}
|
|
|
|
unary = (ast_unary*)cond;
|
|
while (ast_istype(cond, ast_unary) && unary->op == INSTR_NOT_F)
|
|
{
|
|
cond = unary->operand;
|
|
unary->operand = NULL;
|
|
ast_delete(unary);
|
|
ifnot = !ifnot;
|
|
unary = (ast_unary*)cond;
|
|
}
|
|
|
|
if (!cond)
|
|
parseerror(parser, "internal error: failed to process condition");
|
|
|
|
if (ifnot) *_ifnot = !*_ifnot;
|
|
return cond;
|
|
}
|
|
|
|
static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out)
|
|
{
|
|
ast_ifthen *ifthen;
|
|
ast_expression *cond, *ontrue = NULL, *onfalse = NULL;
|
|
bool ifnot = false;
|
|
|
|
lex_ctx ctx = parser_ctx(parser);
|
|
|
|
(void)block; /* not touching */
|
|
|
|
/* skip the 'if', parse an optional 'not' and check for an opening paren */
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected condition or 'not'");
|
|
return false;
|
|
}
|
|
if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "not")) {
|
|
ifnot = true;
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected condition in parenthesis");
|
|
return false;
|
|
}
|
|
}
|
|
if (parser->tok != '(') {
|
|
parseerror(parser, "expected 'if' condition in parenthesis");
|
|
return false;
|
|
}
|
|
/* parse into the expression */
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected 'if' condition after opening paren");
|
|
return false;
|
|
}
|
|
/* parse the condition */
|
|
cond = parse_expression_leave(parser, false, true, false);
|
|
if (!cond)
|
|
return false;
|
|
/* closing paren */
|
|
if (parser->tok != ')') {
|
|
parseerror(parser, "expected closing paren after 'if' condition");
|
|
ast_unref(cond);
|
|
return false;
|
|
}
|
|
/* parse into the 'then' branch */
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected statement for on-true branch of 'if'");
|
|
ast_unref(cond);
|
|
return false;
|
|
}
|
|
if (!parse_statement_or_block(parser, &ontrue)) {
|
|
ast_unref(cond);
|
|
return false;
|
|
}
|
|
if (!ontrue)
|
|
ontrue = (ast_expression*)ast_block_new(parser_ctx(parser));
|
|
/* check for an else */
|
|
if (!strcmp(parser_tokval(parser), "else")) {
|
|
/* parse into the 'else' branch */
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected on-false branch after 'else'");
|
|
ast_delete(ontrue);
|
|
ast_unref(cond);
|
|
return false;
|
|
}
|
|
if (!parse_statement_or_block(parser, &onfalse)) {
|
|
ast_delete(ontrue);
|
|
ast_unref(cond);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
cond = process_condition(parser, cond, &ifnot);
|
|
if (!cond) {
|
|
if (ontrue) ast_delete(ontrue);
|
|
if (onfalse) ast_delete(onfalse);
|
|
return false;
|
|
}
|
|
|
|
if (ifnot)
|
|
ifthen = ast_ifthen_new(ctx, cond, onfalse, ontrue);
|
|
else
|
|
ifthen = ast_ifthen_new(ctx, cond, ontrue, onfalse);
|
|
*out = (ast_expression*)ifthen;
|
|
return true;
|
|
}
|
|
|
|
static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out);
|
|
static bool parse_while(parser_t *parser, ast_block *block, ast_expression **out)
|
|
{
|
|
bool rv;
|
|
char *label = NULL;
|
|
|
|
/* skip the 'while' and get the body */
|
|
if (!parser_next(parser)) {
|
|
if (OPTS_FLAG(LOOP_LABELS))
|
|
parseerror(parser, "expected loop label or 'while' condition in parenthesis");
|
|
else
|
|
parseerror(parser, "expected 'while' condition in parenthesis");
|
|
return false;
|
|
}
|
|
|
|
if (parser->tok == ':') {
|
|
if (!OPTS_FLAG(LOOP_LABELS))
|
|
parseerror(parser, "labeled loops not activated, try using -floop-labels");
|
|
if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
|
|
parseerror(parser, "expected loop label");
|
|
return false;
|
|
}
|
|
label = util_strdup(parser_tokval(parser));
|
|
if (!parser_next(parser)) {
|
|
mem_d(label);
|
|
parseerror(parser, "expected 'while' condition in parenthesis");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (parser->tok != '(') {
|
|
parseerror(parser, "expected 'while' condition in parenthesis");
|
|
return false;
|
|
}
|
|
|
|
vec_push(parser->breaks, label);
|
|
vec_push(parser->continues, label);
|
|
|
|
rv = parse_while_go(parser, block, out);
|
|
if (label)
|
|
mem_d(label);
|
|
if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
|
|
parseerror(parser, "internal error: label stack corrupted");
|
|
rv = false;
|
|
ast_delete(*out);
|
|
*out = NULL;
|
|
}
|
|
else {
|
|
vec_pop(parser->breaks);
|
|
vec_pop(parser->continues);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out)
|
|
{
|
|
ast_loop *aloop;
|
|
ast_expression *cond, *ontrue;
|
|
|
|
bool ifnot = false;
|
|
|
|
lex_ctx ctx = parser_ctx(parser);
|
|
|
|
(void)block; /* not touching */
|
|
|
|
/* parse into the expression */
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected 'while' condition after opening paren");
|
|
return false;
|
|
}
|
|
/* parse the condition */
|
|
cond = parse_expression_leave(parser, false, true, false);
|
|
if (!cond)
|
|
return false;
|
|
/* closing paren */
|
|
if (parser->tok != ')') {
|
|
parseerror(parser, "expected closing paren after 'while' condition");
|
|
ast_unref(cond);
|
|
return false;
|
|
}
|
|
/* parse into the 'then' branch */
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected while-loop body");
|
|
ast_unref(cond);
|
|
return false;
|
|
}
|
|
if (!parse_statement_or_block(parser, &ontrue)) {
|
|
ast_unref(cond);
|
|
return false;
|
|
}
|
|
|
|
cond = process_condition(parser, cond, &ifnot);
|
|
if (!cond) {
|
|
ast_unref(ontrue);
|
|
return false;
|
|
}
|
|
aloop = ast_loop_new(ctx, NULL, cond, ifnot, NULL, false, NULL, ontrue);
|
|
*out = (ast_expression*)aloop;
|
|
return true;
|
|
}
|
|
|
|
static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out);
|
|
static bool parse_dowhile(parser_t *parser, ast_block *block, ast_expression **out)
|
|
{
|
|
bool rv;
|
|
char *label = NULL;
|
|
|
|
/* skip the 'do' and get the body */
|
|
if (!parser_next(parser)) {
|
|
if (OPTS_FLAG(LOOP_LABELS))
|
|
parseerror(parser, "expected loop label or body");
|
|
else
|
|
parseerror(parser, "expected loop body");
|
|
return false;
|
|
}
|
|
|
|
if (parser->tok == ':') {
|
|
if (!OPTS_FLAG(LOOP_LABELS))
|
|
parseerror(parser, "labeled loops not activated, try using -floop-labels");
|
|
if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
|
|
parseerror(parser, "expected loop label");
|
|
return false;
|
|
}
|
|
label = util_strdup(parser_tokval(parser));
|
|
if (!parser_next(parser)) {
|
|
mem_d(label);
|
|
parseerror(parser, "expected loop body");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
vec_push(parser->breaks, label);
|
|
vec_push(parser->continues, label);
|
|
|
|
rv = parse_dowhile_go(parser, block, out);
|
|
if (label)
|
|
mem_d(label);
|
|
if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
|
|
parseerror(parser, "internal error: label stack corrupted");
|
|
rv = false;
|
|
ast_delete(*out);
|
|
*out = NULL;
|
|
}
|
|
else {
|
|
vec_pop(parser->breaks);
|
|
vec_pop(parser->continues);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out)
|
|
{
|
|
ast_loop *aloop;
|
|
ast_expression *cond, *ontrue;
|
|
|
|
bool ifnot = false;
|
|
|
|
lex_ctx ctx = parser_ctx(parser);
|
|
|
|
(void)block; /* not touching */
|
|
|
|
if (!parse_statement_or_block(parser, &ontrue))
|
|
return false;
|
|
|
|
/* expect the "while" */
|
|
if (parser->tok != TOKEN_KEYWORD ||
|
|
strcmp(parser_tokval(parser), "while"))
|
|
{
|
|
parseerror(parser, "expected 'while' and condition");
|
|
ast_delete(ontrue);
|
|
return false;
|
|
}
|
|
|
|
/* skip the 'while' and check for opening paren */
|
|
if (!parser_next(parser) || parser->tok != '(') {
|
|
parseerror(parser, "expected 'while' condition in parenthesis");
|
|
ast_delete(ontrue);
|
|
return false;
|
|
}
|
|
/* parse into the expression */
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected 'while' condition after opening paren");
|
|
ast_delete(ontrue);
|
|
return false;
|
|
}
|
|
/* parse the condition */
|
|
cond = parse_expression_leave(parser, false, true, false);
|
|
if (!cond)
|
|
return false;
|
|
/* closing paren */
|
|
if (parser->tok != ')') {
|
|
parseerror(parser, "expected closing paren after 'while' condition");
|
|
ast_delete(ontrue);
|
|
ast_unref(cond);
|
|
return false;
|
|
}
|
|
/* parse on */
|
|
if (!parser_next(parser) || parser->tok != ';') {
|
|
parseerror(parser, "expected semicolon after condition");
|
|
ast_delete(ontrue);
|
|
ast_unref(cond);
|
|
return false;
|
|
}
|
|
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "parse error");
|
|
ast_delete(ontrue);
|
|
ast_unref(cond);
|
|
return false;
|
|
}
|
|
|
|
cond = process_condition(parser, cond, &ifnot);
|
|
if (!cond) {
|
|
ast_delete(ontrue);
|
|
return false;
|
|
}
|
|
aloop = ast_loop_new(ctx, NULL, NULL, false, cond, ifnot, NULL, ontrue);
|
|
*out = (ast_expression*)aloop;
|
|
return true;
|
|
}
|
|
|
|
static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out);
|
|
static bool parse_for(parser_t *parser, ast_block *block, ast_expression **out)
|
|
{
|
|
bool rv;
|
|
char *label = NULL;
|
|
|
|
/* skip the 'for' and check for opening paren */
|
|
if (!parser_next(parser)) {
|
|
if (OPTS_FLAG(LOOP_LABELS))
|
|
parseerror(parser, "expected loop label or 'for' expressions in parenthesis");
|
|
else
|
|
parseerror(parser, "expected 'for' expressions in parenthesis");
|
|
return false;
|
|
}
|
|
|
|
if (parser->tok == ':') {
|
|
if (!OPTS_FLAG(LOOP_LABELS))
|
|
parseerror(parser, "labeled loops not activated, try using -floop-labels");
|
|
if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
|
|
parseerror(parser, "expected loop label");
|
|
return false;
|
|
}
|
|
label = util_strdup(parser_tokval(parser));
|
|
if (!parser_next(parser)) {
|
|
mem_d(label);
|
|
parseerror(parser, "expected 'for' expressions in parenthesis");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (parser->tok != '(') {
|
|
parseerror(parser, "expected 'for' expressions in parenthesis");
|
|
return false;
|
|
}
|
|
|
|
vec_push(parser->breaks, label);
|
|
vec_push(parser->continues, label);
|
|
|
|
rv = parse_for_go(parser, block, out);
|
|
if (label)
|
|
mem_d(label);
|
|
if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
|
|
parseerror(parser, "internal error: label stack corrupted");
|
|
rv = false;
|
|
ast_delete(*out);
|
|
*out = NULL;
|
|
}
|
|
else {
|
|
vec_pop(parser->breaks);
|
|
vec_pop(parser->continues);
|
|
}
|
|
return rv;
|
|
}
|
|
static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out)
|
|
{
|
|
ast_loop *aloop;
|
|
ast_expression *initexpr, *cond, *increment, *ontrue;
|
|
ast_value *typevar;
|
|
|
|
bool ifnot = false;
|
|
|
|
lex_ctx ctx = parser_ctx(parser);
|
|
|
|
parser_enterblock(parser);
|
|
|
|
initexpr = NULL;
|
|
cond = NULL;
|
|
increment = NULL;
|
|
ontrue = NULL;
|
|
|
|
/* parse into the expression */
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected 'for' initializer after opening paren");
|
|
goto onerr;
|
|
}
|
|
|
|
typevar = NULL;
|
|
if (parser->tok == TOKEN_IDENT)
|
|
typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
|
|
|
|
if (typevar || parser->tok == TOKEN_TYPENAME) {
|
|
#if 0
|
|
if (OPTS_OPTION_U32(OPTION_STANDARD) != COMPILER_GMQCC) {
|
|
if (parsewarning(parser, WARN_EXTENSIONS,
|
|
"current standard does not allow variable declarations in for-loop initializers"))
|
|
goto onerr;
|
|
}
|
|
#endif
|
|
if (!parse_variable(parser, block, true, CV_VAR, typevar, false, false, 0, NULL))
|
|
goto onerr;
|
|
}
|
|
else if (parser->tok != ';')
|
|
{
|
|
initexpr = parse_expression_leave(parser, false, false, false);
|
|
if (!initexpr)
|
|
goto onerr;
|
|
}
|
|
|
|
/* move on to condition */
|
|
if (parser->tok != ';') {
|
|
parseerror(parser, "expected semicolon after for-loop initializer");
|
|
goto onerr;
|
|
}
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected for-loop condition");
|
|
goto onerr;
|
|
}
|
|
|
|
/* parse the condition */
|
|
if (parser->tok != ';') {
|
|
cond = parse_expression_leave(parser, false, true, false);
|
|
if (!cond)
|
|
goto onerr;
|
|
}
|
|
|
|
/* move on to incrementor */
|
|
if (parser->tok != ';') {
|
|
parseerror(parser, "expected semicolon after for-loop initializer");
|
|
goto onerr;
|
|
}
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected for-loop condition");
|
|
goto onerr;
|
|
}
|
|
|
|
/* parse the incrementor */
|
|
if (parser->tok != ')') {
|
|
lex_ctx condctx = parser_ctx(parser);
|
|
increment = parse_expression_leave(parser, false, false, false);
|
|
if (!increment)
|
|
goto onerr;
|
|
if (!ast_side_effects(increment)) {
|
|
if (compile_warning(condctx, WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
|
|
goto onerr;
|
|
}
|
|
}
|
|
|
|
/* closing paren */
|
|
if (parser->tok != ')') {
|
|
parseerror(parser, "expected closing paren after 'for-loop' incrementor");
|
|
goto onerr;
|
|
}
|
|
/* parse into the 'then' branch */
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected for-loop body");
|
|
goto onerr;
|
|
}
|
|
if (!parse_statement_or_block(parser, &ontrue))
|
|
goto onerr;
|
|
|
|
if (cond) {
|
|
cond = process_condition(parser, cond, &ifnot);
|
|
if (!cond)
|
|
goto onerr;
|
|
}
|
|
aloop = ast_loop_new(ctx, initexpr, cond, ifnot, NULL, false, increment, ontrue);
|
|
*out = (ast_expression*)aloop;
|
|
|
|
if (!parser_leaveblock(parser)) {
|
|
ast_delete(aloop);
|
|
return false;
|
|
}
|
|
return true;
|
|
onerr:
|
|
if (initexpr) ast_unref(initexpr);
|
|
if (cond) ast_unref(cond);
|
|
if (increment) ast_unref(increment);
|
|
(void)!parser_leaveblock(parser);
|
|
return false;
|
|
}
|
|
|
|
static bool parse_return(parser_t *parser, ast_block *block, ast_expression **out)
|
|
{
|
|
ast_expression *exp = NULL;
|
|
ast_expression *var = NULL;
|
|
ast_return *ret = NULL;
|
|
ast_value *retval = parser->function->return_value;
|
|
ast_value *expected = parser->function->vtype;
|
|
|
|
lex_ctx ctx = parser_ctx(parser);
|
|
|
|
(void)block; /* not touching */
|
|
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected return expression");
|
|
return false;
|
|
}
|
|
|
|
/* return assignments */
|
|
if (parser->tok == '=') {
|
|
if (!OPTS_FLAG(RETURN_ASSIGNMENTS)) {
|
|
parseerror(parser, "return assignments not activated, try using -freturn-assigments");
|
|
return false;
|
|
}
|
|
|
|
if (type_store_instr[expected->expression.next->vtype] == VINSTR_END) {
|
|
char ty1[1024];
|
|
ast_type_to_string(expected->expression.next, ty1, sizeof(ty1));
|
|
parseerror(parser, "invalid return type: `%s'", ty1);
|
|
return false;
|
|
}
|
|
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected return assignment expression");
|
|
return false;
|
|
}
|
|
|
|
if (!(exp = parse_expression_leave(parser, false, false, false)))
|
|
return false;
|
|
|
|
/* prepare the return value */
|
|
if (!retval) {
|
|
retval = ast_value_new(ctx, "#LOCAL_RETURN", TYPE_VOID);
|
|
ast_type_adopt(retval, expected->expression.next);
|
|
parser->function->return_value = retval;
|
|
}
|
|
|
|
if (!ast_compare_type(exp, (ast_expression*)retval)) {
|
|
char ty1[1024], ty2[1024];
|
|
ast_type_to_string(exp, ty1, sizeof(ty1));
|
|
ast_type_to_string(&retval->expression, ty2, sizeof(ty2));
|
|
parseerror(parser, "invalid type for return value: `%s', expected `%s'", ty1, ty2);
|
|
}
|
|
|
|
/* store to 'return' local variable */
|
|
var = (ast_expression*)ast_store_new(
|
|
ctx,
|
|
type_store_instr[expected->expression.next->vtype],
|
|
(ast_expression*)retval, exp);
|
|
|
|
if (!var) {
|
|
ast_unref(exp);
|
|
return false;
|
|
}
|
|
|
|
if (parser->tok != ';')
|
|
parseerror(parser, "missing semicolon after return assignment");
|
|
else if (!parser_next(parser))
|
|
parseerror(parser, "parse error after return assignment");
|
|
|
|
*out = var;
|
|
return true;
|
|
}
|
|
|
|
if (parser->tok != ';') {
|
|
exp = parse_expression(parser, false, false);
|
|
if (!exp)
|
|
return false;
|
|
|
|
if (exp->vtype != TYPE_NIL &&
|
|
exp->vtype != ((ast_expression*)expected)->next->vtype)
|
|
{
|
|
parseerror(parser, "return with invalid expression");
|
|
}
|
|
|
|
ret = ast_return_new(ctx, exp);
|
|
if (!ret) {
|
|
ast_unref(exp);
|
|
return false;
|
|
}
|
|
} else {
|
|
if (!parser_next(parser))
|
|
parseerror(parser, "parse error");
|
|
|
|
if (!retval && expected->expression.next->vtype != TYPE_VOID)
|
|
{
|
|
(void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value");
|
|
}
|
|
ret = ast_return_new(ctx, (ast_expression*)retval);
|
|
}
|
|
*out = (ast_expression*)ret;
|
|
return true;
|
|
}
|
|
|
|
static bool parse_break_continue(parser_t *parser, ast_block *block, ast_expression **out, bool is_continue)
|
|
{
|
|
size_t i;
|
|
unsigned int levels = 0;
|
|
lex_ctx ctx = parser_ctx(parser);
|
|
const char **loops = (is_continue ? parser->continues : parser->breaks);
|
|
|
|
(void)block; /* not touching */
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected semicolon or loop label");
|
|
return false;
|
|
}
|
|
|
|
if (!vec_size(loops)) {
|
|
if (is_continue)
|
|
parseerror(parser, "`continue` can only be used inside loops");
|
|
else
|
|
parseerror(parser, "`break` can only be used inside loops or switches");
|
|
}
|
|
|
|
if (parser->tok == TOKEN_IDENT) {
|
|
if (!OPTS_FLAG(LOOP_LABELS))
|
|
parseerror(parser, "labeled loops not activated, try using -floop-labels");
|
|
i = vec_size(loops);
|
|
while (i--) {
|
|
if (loops[i] && !strcmp(loops[i], parser_tokval(parser)))
|
|
break;
|
|
if (!i) {
|
|
parseerror(parser, "no such loop to %s: `%s`",
|
|
(is_continue ? "continue" : "break out of"),
|
|
parser_tokval(parser));
|
|
return false;
|
|
}
|
|
++levels;
|
|
}
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected semicolon");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (parser->tok != ';') {
|
|
parseerror(parser, "expected semicolon");
|
|
return false;
|
|
}
|
|
|
|
if (!parser_next(parser))
|
|
parseerror(parser, "parse error");
|
|
|
|
*out = (ast_expression*)ast_breakcont_new(ctx, is_continue, levels);
|
|
return true;
|
|
}
|
|
|
|
/* returns true when it was a variable qualifier, false otherwise!
|
|
* on error, cvq is set to CV_WRONG
|
|
*/
|
|
static bool parse_qualifiers(parser_t *parser, bool with_local, int *cvq, bool *noref, bool *is_static, uint32_t *_flags, char **message)
|
|
{
|
|
bool had_const = false;
|
|
bool had_var = false;
|
|
bool had_noref = false;
|
|
bool had_attrib = false;
|
|
bool had_static = false;
|
|
uint32_t flags = 0;
|
|
|
|
*cvq = CV_NONE;
|
|
for (;;) {
|
|
if (parser->tok == TOKEN_ATTRIBUTE_OPEN) {
|
|
had_attrib = true;
|
|
/* parse an attribute */
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected attribute after `[[`");
|
|
*cvq = CV_WRONG;
|
|
return false;
|
|
}
|
|
if (!strcmp(parser_tokval(parser), "noreturn")) {
|
|
flags |= AST_FLAG_NORETURN;
|
|
if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
|
|
parseerror(parser, "`noreturn` attribute has no parameters, expected `]]`");
|
|
*cvq = CV_WRONG;
|
|
return false;
|
|
}
|
|
}
|
|
else if (!strcmp(parser_tokval(parser), "noref")) {
|
|
had_noref = true;
|
|
if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
|
|
parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
|
|
*cvq = CV_WRONG;
|
|
return false;
|
|
}
|
|
}
|
|
else if (!strcmp(parser_tokval(parser), "inline")) {
|
|
flags |= AST_FLAG_INLINE;
|
|
if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
|
|
parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
|
|
*cvq = CV_WRONG;
|
|
return false;
|
|
}
|
|
}
|
|
else if (!strcmp(parser_tokval(parser), "alias") && !(flags & AST_FLAG_ALIAS)) {
|
|
flags |= AST_FLAG_ALIAS;
|
|
*message = NULL;
|
|
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "parse error in attribute");
|
|
goto argerr;
|
|
}
|
|
|
|
if (parser->tok == '(') {
|
|
if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
|
|
parseerror(parser, "`alias` attribute missing parameter");
|
|
goto argerr;
|
|
}
|
|
|
|
*message = util_strdup(parser_tokval(parser));
|
|
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "parse error in attribute");
|
|
goto argerr;
|
|
}
|
|
|
|
if (parser->tok != ')') {
|
|
parseerror(parser, "`alias` attribute expected `)` after parameter");
|
|
goto argerr;
|
|
}
|
|
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "parse error in attribute");
|
|
goto argerr;
|
|
}
|
|
}
|
|
|
|
if (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
|
|
parseerror(parser, "`alias` attribute expected `]]`");
|
|
goto argerr;
|
|
}
|
|
}
|
|
else if (!strcmp(parser_tokval(parser), "deprecated") && !(flags & AST_FLAG_DEPRECATED)) {
|
|
flags |= AST_FLAG_DEPRECATED;
|
|
*message = NULL;
|
|
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "parse error in attribute");
|
|
goto argerr;
|
|
}
|
|
|
|
if (parser->tok == '(') {
|
|
if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
|
|
parseerror(parser, "`deprecated` attribute missing parameter");
|
|
goto argerr;
|
|
}
|
|
|
|
*message = util_strdup(parser_tokval(parser));
|
|
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "parse error in attribute");
|
|
goto argerr;
|
|
}
|
|
|
|
if(parser->tok != ')') {
|
|
parseerror(parser, "`deprecated` attribute expected `)` after parameter");
|
|
goto argerr;
|
|
}
|
|
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "parse error in attribute");
|
|
goto argerr;
|
|
}
|
|
}
|
|
/* no message */
|
|
if (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
|
|
parseerror(parser, "`deprecated` attribute expected `]]`");
|
|
|
|
argerr: /* ugly */
|
|
if (*message) mem_d(*message);
|
|
*message = NULL;
|
|
*cvq = CV_WRONG;
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Skip tokens until we hit a ]] */
|
|
(void)!parsewarning(parser, WARN_UNKNOWN_ATTRIBUTE, "unknown attribute starting with `%s`", parser_tokval(parser));
|
|
while (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "error inside attribute");
|
|
*cvq = CV_WRONG;
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else if (with_local && !strcmp(parser_tokval(parser), "static"))
|
|
had_static = true;
|
|
else if (!strcmp(parser_tokval(parser), "const"))
|
|
had_const = true;
|
|
else if (!strcmp(parser_tokval(parser), "var"))
|
|
had_var = true;
|
|
else if (with_local && !strcmp(parser_tokval(parser), "local"))
|
|
had_var = true;
|
|
else if (!strcmp(parser_tokval(parser), "noref"))
|
|
had_noref = true;
|
|
else if (!had_const && !had_var && !had_noref && !had_attrib && !had_static && !flags) {
|
|
return false;
|
|
}
|
|
else
|
|
break;
|
|
if (!parser_next(parser))
|
|
goto onerr;
|
|
}
|
|
if (had_const)
|
|
*cvq = CV_CONST;
|
|
else if (had_var)
|
|
*cvq = CV_VAR;
|
|
else
|
|
*cvq = CV_NONE;
|
|
*noref = had_noref;
|
|
*is_static = had_static;
|
|
*_flags = flags;
|
|
return true;
|
|
onerr:
|
|
parseerror(parser, "parse error after variable qualifier");
|
|
*cvq = CV_WRONG;
|
|
return true;
|
|
}
|
|
|
|
static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out);
|
|
static bool parse_switch(parser_t *parser, ast_block *block, ast_expression **out)
|
|
{
|
|
bool rv;
|
|
char *label = NULL;
|
|
|
|
/* skip the 'while' and get the body */
|
|
if (!parser_next(parser)) {
|
|
if (OPTS_FLAG(LOOP_LABELS))
|
|
parseerror(parser, "expected loop label or 'switch' operand in parenthesis");
|
|
else
|
|
parseerror(parser, "expected 'switch' operand in parenthesis");
|
|
return false;
|
|
}
|
|
|
|
if (parser->tok == ':') {
|
|
if (!OPTS_FLAG(LOOP_LABELS))
|
|
parseerror(parser, "labeled loops not activated, try using -floop-labels");
|
|
if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
|
|
parseerror(parser, "expected loop label");
|
|
return false;
|
|
}
|
|
label = util_strdup(parser_tokval(parser));
|
|
if (!parser_next(parser)) {
|
|
mem_d(label);
|
|
parseerror(parser, "expected 'switch' operand in parenthesis");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (parser->tok != '(') {
|
|
parseerror(parser, "expected 'switch' operand in parenthesis");
|
|
return false;
|
|
}
|
|
|
|
vec_push(parser->breaks, label);
|
|
|
|
rv = parse_switch_go(parser, block, out);
|
|
if (label)
|
|
mem_d(label);
|
|
if (vec_last(parser->breaks) != label) {
|
|
parseerror(parser, "internal error: label stack corrupted");
|
|
rv = false;
|
|
ast_delete(*out);
|
|
*out = NULL;
|
|
}
|
|
else {
|
|
vec_pop(parser->breaks);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out)
|
|
{
|
|
ast_expression *operand;
|
|
ast_value *opval;
|
|
ast_value *typevar;
|
|
ast_switch *switchnode;
|
|
ast_switch_case swcase;
|
|
|
|
int cvq;
|
|
bool noref, is_static;
|
|
uint32_t qflags = 0;
|
|
|
|
lex_ctx ctx = parser_ctx(parser);
|
|
|
|
(void)block; /* not touching */
|
|
(void)opval;
|
|
|
|
/* parse into the expression */
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected switch operand");
|
|
return false;
|
|
}
|
|
/* parse the operand */
|
|
operand = parse_expression_leave(parser, false, false, false);
|
|
if (!operand)
|
|
return false;
|
|
|
|
switchnode = ast_switch_new(ctx, operand);
|
|
|
|
/* closing paren */
|
|
if (parser->tok != ')') {
|
|
ast_delete(switchnode);
|
|
parseerror(parser, "expected closing paren after 'switch' operand");
|
|
return false;
|
|
}
|
|
|
|
/* parse over the opening paren */
|
|
if (!parser_next(parser) || parser->tok != '{') {
|
|
ast_delete(switchnode);
|
|
parseerror(parser, "expected list of cases");
|
|
return false;
|
|
}
|
|
|
|
if (!parser_next(parser)) {
|
|
ast_delete(switchnode);
|
|
parseerror(parser, "expected 'case' or 'default'");
|
|
return false;
|
|
}
|
|
|
|
/* new block; allow some variables to be declared here */
|
|
parser_enterblock(parser);
|
|
while (true) {
|
|
typevar = NULL;
|
|
if (parser->tok == TOKEN_IDENT)
|
|
typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
|
|
if (typevar || parser->tok == TOKEN_TYPENAME) {
|
|
if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL)) {
|
|
ast_delete(switchnode);
|
|
return false;
|
|
}
|
|
continue;
|
|
}
|
|
if (parse_qualifiers(parser, true, &cvq, &noref, &is_static, &qflags, NULL))
|
|
{
|
|
if (cvq == CV_WRONG) {
|
|
ast_delete(switchnode);
|
|
return false;
|
|
}
|
|
if (!parse_variable(parser, block, false, cvq, NULL, noref, is_static, qflags, NULL)) {
|
|
ast_delete(switchnode);
|
|
return false;
|
|
}
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* case list! */
|
|
while (parser->tok != '}') {
|
|
ast_block *caseblock;
|
|
|
|
if (!strcmp(parser_tokval(parser), "case")) {
|
|
if (!parser_next(parser)) {
|
|
ast_delete(switchnode);
|
|
parseerror(parser, "expected expression for case");
|
|
return false;
|
|
}
|
|
swcase.value = parse_expression_leave(parser, false, false, false);
|
|
if (!swcase.value) {
|
|
ast_delete(switchnode);
|
|
parseerror(parser, "expected expression for case");
|
|
return false;
|
|
}
|
|
if (!OPTS_FLAG(RELAXED_SWITCH)) {
|
|
if (!ast_istype(swcase.value, ast_value)) { /* || ((ast_value*)swcase.value)->cvq != CV_CONST) { */
|
|
parseerror(parser, "case on non-constant values need to be explicitly enabled via -frelaxed-switch");
|
|
ast_unref(operand);
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
else if (!strcmp(parser_tokval(parser), "default")) {
|
|
swcase.value = NULL;
|
|
if (!parser_next(parser)) {
|
|
ast_delete(switchnode);
|
|
parseerror(parser, "expected colon");
|
|
return false;
|
|
}
|
|
}
|
|
else {
|
|
ast_delete(switchnode);
|
|
parseerror(parser, "expected 'case' or 'default'");
|
|
return false;
|
|
}
|
|
|
|
/* Now the colon and body */
|
|
if (parser->tok != ':') {
|
|
if (swcase.value) ast_unref(swcase.value);
|
|
ast_delete(switchnode);
|
|
parseerror(parser, "expected colon");
|
|
return false;
|
|
}
|
|
|
|
if (!parser_next(parser)) {
|
|
if (swcase.value) ast_unref(swcase.value);
|
|
ast_delete(switchnode);
|
|
parseerror(parser, "expected statements or case");
|
|
return false;
|
|
}
|
|
caseblock = ast_block_new(parser_ctx(parser));
|
|
if (!caseblock) {
|
|
if (swcase.value) ast_unref(swcase.value);
|
|
ast_delete(switchnode);
|
|
return false;
|
|
}
|
|
swcase.code = (ast_expression*)caseblock;
|
|
vec_push(switchnode->cases, swcase);
|
|
while (true) {
|
|
ast_expression *expr;
|
|
if (parser->tok == '}')
|
|
break;
|
|
if (parser->tok == TOKEN_KEYWORD) {
|
|
if (!strcmp(parser_tokval(parser), "case") ||
|
|
!strcmp(parser_tokval(parser), "default"))
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
if (!parse_statement(parser, caseblock, &expr, true)) {
|
|
ast_delete(switchnode);
|
|
return false;
|
|
}
|
|
if (!expr)
|
|
continue;
|
|
if (!ast_block_add_expr(caseblock, expr)) {
|
|
ast_delete(switchnode);
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
parser_leaveblock(parser);
|
|
|
|
/* closing paren */
|
|
if (parser->tok != '}') {
|
|
ast_delete(switchnode);
|
|
parseerror(parser, "expected closing paren of case list");
|
|
return false;
|
|
}
|
|
if (!parser_next(parser)) {
|
|
ast_delete(switchnode);
|
|
parseerror(parser, "parse error after switch");
|
|
return false;
|
|
}
|
|
*out = (ast_expression*)switchnode;
|
|
return true;
|
|
}
|
|
|
|
/* parse computed goto sides */
|
|
static ast_expression *parse_goto_computed(parser_t *parser, ast_expression **side) {
|
|
ast_expression *on_true;
|
|
ast_expression *on_false;
|
|
ast_expression *cond;
|
|
|
|
if (!*side)
|
|
return NULL;
|
|
|
|
if (ast_istype(*side, ast_ternary)) {
|
|
ast_ternary *tern = (ast_ternary*)*side;
|
|
on_true = parse_goto_computed(parser, &tern->on_true);
|
|
on_false = parse_goto_computed(parser, &tern->on_false);
|
|
|
|
if (!on_true || !on_false) {
|
|
parseerror(parser, "expected label or expression in ternary");
|
|
if (on_true) ast_unref(on_true);
|
|
if (on_false) ast_unref(on_false);
|
|
return NULL;
|
|
}
|
|
|
|
cond = tern->cond;
|
|
tern->cond = NULL;
|
|
ast_delete(tern);
|
|
*side = NULL;
|
|
return (ast_expression*)ast_ifthen_new(parser_ctx(parser), cond, on_true, on_false);
|
|
} else if (ast_istype(*side, ast_label)) {
|
|
ast_goto *gt = ast_goto_new(parser_ctx(parser), ((ast_label*)*side)->name);
|
|
ast_goto_set_label(gt, ((ast_label*)*side));
|
|
*side = NULL;
|
|
return (ast_expression*)gt;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static bool parse_goto(parser_t *parser, ast_expression **out)
|
|
{
|
|
ast_goto *gt = NULL;
|
|
ast_expression *lbl;
|
|
|
|
if (!parser_next(parser))
|
|
return false;
|
|
|
|
if (parser->tok != TOKEN_IDENT) {
|
|
ast_expression *expression;
|
|
|
|
/* could be an expression i.e computed goto :-) */
|
|
if (parser->tok != '(') {
|
|
parseerror(parser, "expected label name after `goto`");
|
|
return false;
|
|
}
|
|
|
|
/* failed to parse expression for goto */
|
|
if (!(expression = parse_expression(parser, false, true)) ||
|
|
!(*out = parse_goto_computed(parser, &expression))) {
|
|
parseerror(parser, "invalid goto expression");
|
|
ast_unref(expression);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/* not computed goto */
|
|
gt = ast_goto_new(parser_ctx(parser), parser_tokval(parser));
|
|
lbl = parser_find_label(parser, gt->name);
|
|
if (lbl) {
|
|
if (!ast_istype(lbl, ast_label)) {
|
|
parseerror(parser, "internal error: label is not an ast_label");
|
|
ast_delete(gt);
|
|
return false;
|
|
}
|
|
ast_goto_set_label(gt, (ast_label*)lbl);
|
|
}
|
|
else
|
|
vec_push(parser->gotos, gt);
|
|
|
|
if (!parser_next(parser) || parser->tok != ';') {
|
|
parseerror(parser, "semicolon expected after goto label");
|
|
return false;
|
|
}
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "parse error after goto");
|
|
return false;
|
|
}
|
|
|
|
*out = (ast_expression*)gt;
|
|
return true;
|
|
}
|
|
|
|
static bool parse_skipwhite(parser_t *parser)
|
|
{
|
|
do {
|
|
if (!parser_next(parser))
|
|
return false;
|
|
} while (parser->tok == TOKEN_WHITE && parser->tok < TOKEN_ERROR);
|
|
return parser->tok < TOKEN_ERROR;
|
|
}
|
|
|
|
static bool parse_eol(parser_t *parser)
|
|
{
|
|
if (!parse_skipwhite(parser))
|
|
return false;
|
|
return parser->tok == TOKEN_EOL;
|
|
}
|
|
|
|
static bool parse_pragma_do(parser_t *parser)
|
|
{
|
|
if (!parser_next(parser) ||
|
|
parser->tok != TOKEN_IDENT ||
|
|
strcmp(parser_tokval(parser), "pragma"))
|
|
{
|
|
parseerror(parser, "expected `pragma` keyword after `#`, got `%s`", parser_tokval(parser));
|
|
return false;
|
|
}
|
|
if (!parse_skipwhite(parser) || parser->tok != TOKEN_IDENT) {
|
|
parseerror(parser, "expected pragma, got `%s`", parser_tokval(parser));
|
|
return false;
|
|
}
|
|
|
|
if (!strcmp(parser_tokval(parser), "noref")) {
|
|
if (!parse_skipwhite(parser) || parser->tok != TOKEN_INTCONST) {
|
|
parseerror(parser, "`noref` pragma requires an argument: 0 or 1");
|
|
return false;
|
|
}
|
|
parser->noref = !!parser_token(parser)->constval.i;
|
|
if (!parse_eol(parser)) {
|
|
parseerror(parser, "parse error after `noref` pragma");
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
(void)!parsewarning(parser, WARN_UNKNOWN_PRAGMAS, "ignoring #pragma %s", parser_tokval(parser));
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool parse_pragma(parser_t *parser)
|
|
{
|
|
bool rv;
|
|
parser->lex->flags.preprocessing = true;
|
|
parser->lex->flags.mergelines = true;
|
|
rv = parse_pragma_do(parser);
|
|
if (parser->tok != TOKEN_EOL) {
|
|
parseerror(parser, "junk after pragma");
|
|
rv = false;
|
|
}
|
|
parser->lex->flags.preprocessing = false;
|
|
parser->lex->flags.mergelines = false;
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "parse error after pragma");
|
|
rv = false;
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases)
|
|
{
|
|
bool noref, is_static;
|
|
int cvq = CV_NONE;
|
|
uint32_t qflags = 0;
|
|
ast_value *typevar = NULL;
|
|
char *vstring = NULL;
|
|
|
|
*out = NULL;
|
|
|
|
if (parser->tok == TOKEN_IDENT)
|
|
typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
|
|
|
|
if (typevar || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
|
|
{
|
|
/* local variable */
|
|
if (!block) {
|
|
parseerror(parser, "cannot declare a variable from here");
|
|
return false;
|
|
}
|
|
if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
|
|
if (parsewarning(parser, WARN_EXTENSIONS, "missing 'local' keyword when declaring a local variable"))
|
|
return false;
|
|
}
|
|
if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL))
|
|
return false;
|
|
return true;
|
|
}
|
|
else if (parse_qualifiers(parser, !!block, &cvq, &noref, &is_static, &qflags, &vstring))
|
|
{
|
|
if (cvq == CV_WRONG)
|
|
return false;
|
|
return parse_variable(parser, block, true, cvq, NULL, noref, is_static, qflags, vstring);
|
|
}
|
|
else if (parser->tok == TOKEN_KEYWORD)
|
|
{
|
|
if (!strcmp(parser_tokval(parser), "__builtin_debug_printtype"))
|
|
{
|
|
char ty[1024];
|
|
ast_value *tdef;
|
|
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "parse error after __builtin_debug_printtype");
|
|
return false;
|
|
}
|
|
|
|
if (parser->tok == TOKEN_IDENT && (tdef = parser_find_typedef(parser, parser_tokval(parser), 0)))
|
|
{
|
|
ast_type_to_string((ast_expression*)tdef, ty, sizeof(ty));
|
|
con_out("__builtin_debug_printtype: `%s`=`%s`\n", tdef->name, ty);
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "parse error after __builtin_debug_printtype typename argument");
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (!parse_statement(parser, block, out, allow_cases))
|
|
return false;
|
|
if (!*out)
|
|
con_out("__builtin_debug_printtype: got no output node\n");
|
|
else
|
|
{
|
|
ast_type_to_string(*out, ty, sizeof(ty));
|
|
con_out("__builtin_debug_printtype: `%s`\n", ty);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
else if (!strcmp(parser_tokval(parser), "return"))
|
|
{
|
|
return parse_return(parser, block, out);
|
|
}
|
|
else if (!strcmp(parser_tokval(parser), "if"))
|
|
{
|
|
return parse_if(parser, block, out);
|
|
}
|
|
else if (!strcmp(parser_tokval(parser), "while"))
|
|
{
|
|
return parse_while(parser, block, out);
|
|
}
|
|
else if (!strcmp(parser_tokval(parser), "do"))
|
|
{
|
|
return parse_dowhile(parser, block, out);
|
|
}
|
|
else if (!strcmp(parser_tokval(parser), "for"))
|
|
{
|
|
if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
|
|
if (parsewarning(parser, WARN_EXTENSIONS, "for loops are not recognized in the original Quake C standard, to enable try an alternate standard --std=?"))
|
|
return false;
|
|
}
|
|
return parse_for(parser, block, out);
|
|
}
|
|
else if (!strcmp(parser_tokval(parser), "break"))
|
|
{
|
|
return parse_break_continue(parser, block, out, false);
|
|
}
|
|
else if (!strcmp(parser_tokval(parser), "continue"))
|
|
{
|
|
return parse_break_continue(parser, block, out, true);
|
|
}
|
|
else if (!strcmp(parser_tokval(parser), "switch"))
|
|
{
|
|
return parse_switch(parser, block, out);
|
|
}
|
|
else if (!strcmp(parser_tokval(parser), "case") ||
|
|
!strcmp(parser_tokval(parser), "default"))
|
|
{
|
|
if (!allow_cases) {
|
|
parseerror(parser, "unexpected 'case' label");
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
else if (!strcmp(parser_tokval(parser), "goto"))
|
|
{
|
|
return parse_goto(parser, out);
|
|
}
|
|
else if (!strcmp(parser_tokval(parser), "typedef"))
|
|
{
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected type definition after 'typedef'");
|
|
return false;
|
|
}
|
|
return parse_typedef(parser);
|
|
}
|
|
parseerror(parser, "Unexpected keyword: `%s'", parser_tokval(parser));
|
|
return false;
|
|
}
|
|
else if (parser->tok == '{')
|
|
{
|
|
ast_block *inner;
|
|
inner = parse_block(parser);
|
|
if (!inner)
|
|
return false;
|
|
*out = (ast_expression*)inner;
|
|
return true;
|
|
}
|
|
else if (parser->tok == ':')
|
|
{
|
|
size_t i;
|
|
ast_label *label;
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected label name");
|
|
return false;
|
|
}
|
|
if (parser->tok != TOKEN_IDENT) {
|
|
parseerror(parser, "label must be an identifier");
|
|
return false;
|
|
}
|
|
label = (ast_label*)parser_find_label(parser, parser_tokval(parser));
|
|
if (label) {
|
|
if (!label->undefined) {
|
|
parseerror(parser, "label `%s` already defined", label->name);
|
|
return false;
|
|
}
|
|
label->undefined = false;
|
|
}
|
|
else {
|
|
label = ast_label_new(parser_ctx(parser), parser_tokval(parser), false);
|
|
vec_push(parser->labels, label);
|
|
}
|
|
*out = (ast_expression*)label;
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "parse error after label");
|
|
return false;
|
|
}
|
|
for (i = 0; i < vec_size(parser->gotos); ++i) {
|
|
if (!strcmp(parser->gotos[i]->name, label->name)) {
|
|
ast_goto_set_label(parser->gotos[i], label);
|
|
vec_remove(parser->gotos, i, 1);
|
|
--i;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
else if (parser->tok == ';')
|
|
{
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "parse error after empty statement");
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
lex_ctx ctx = parser_ctx(parser);
|
|
ast_expression *exp = parse_expression(parser, false, false);
|
|
if (!exp)
|
|
return false;
|
|
*out = exp;
|
|
if (!ast_side_effects(exp)) {
|
|
if (compile_warning(ctx, WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
|
|
static bool parse_enum(parser_t *parser)
|
|
{
|
|
bool flag = false;
|
|
bool reverse = false;
|
|
qcfloat num = 0;
|
|
ast_value **values = NULL;
|
|
ast_value *var = NULL;
|
|
ast_value *asvalue;
|
|
|
|
ast_expression *old;
|
|
|
|
if (!parser_next(parser) || (parser->tok != '{' && parser->tok != ':')) {
|
|
parseerror(parser, "expected `{` or `:` after `enum` keyword");
|
|
return false;
|
|
}
|
|
|
|
/* enumeration attributes (can add more later) */
|
|
if (parser->tok == ':') {
|
|
if (!parser_next(parser) || parser->tok != TOKEN_IDENT){
|
|
parseerror(parser, "expected `flag` or `reverse` for enumeration attribute");
|
|
return false;
|
|
}
|
|
|
|
/* attributes? */
|
|
if (!strcmp(parser_tokval(parser), "flag")) {
|
|
num = 1;
|
|
flag = true;
|
|
}
|
|
else if (!strcmp(parser_tokval(parser), "reverse")) {
|
|
reverse = true;
|
|
}
|
|
else {
|
|
parseerror(parser, "invalid attribute `%s` for enumeration", parser_tokval(parser));
|
|
return false;
|
|
}
|
|
|
|
if (!parser_next(parser) || parser->tok != '{') {
|
|
parseerror(parser, "expected `{` after enum attribute ");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
while (true) {
|
|
if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
|
|
if (parser->tok == '}') {
|
|
/* allow an empty enum */
|
|
break;
|
|
}
|
|
parseerror(parser, "expected identifier or `}`");
|
|
goto onerror;
|
|
}
|
|
|
|
old = parser_find_field(parser, parser_tokval(parser));
|
|
if (!old)
|
|
old = parser_find_global(parser, parser_tokval(parser));
|
|
if (old) {
|
|
parseerror(parser, "value `%s` has already been declared here: %s:%i",
|
|
parser_tokval(parser), ast_ctx(old).file, ast_ctx(old).line);
|
|
goto onerror;
|
|
}
|
|
|
|
var = ast_value_new(parser_ctx(parser), parser_tokval(parser), TYPE_FLOAT);
|
|
vec_push(values, var);
|
|
var->cvq = CV_CONST;
|
|
var->hasvalue = true;
|
|
|
|
/* for flagged enumerations increment in POTs of TWO */
|
|
var->constval.vfloat = (flag) ? (num *= 2) : (num ++);
|
|
parser_addglobal(parser, var->name, (ast_expression*)var);
|
|
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected `=`, `}` or comma after identifier");
|
|
goto onerror;
|
|
}
|
|
|
|
if (parser->tok == ',')
|
|
continue;
|
|
if (parser->tok == '}')
|
|
break;
|
|
if (parser->tok != '=') {
|
|
parseerror(parser, "expected `=`, `}` or comma after identifier");
|
|
goto onerror;
|
|
}
|
|
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected expression after `=`");
|
|
goto onerror;
|
|
}
|
|
|
|
/* We got a value! */
|
|
old = parse_expression_leave(parser, true, false, false);
|
|
asvalue = (ast_value*)old;
|
|
if (!ast_istype(old, ast_value) || asvalue->cvq != CV_CONST || !asvalue->hasvalue) {
|
|
compile_error(ast_ctx(var), "constant value or expression expected");
|
|
goto onerror;
|
|
}
|
|
num = (var->constval.vfloat = asvalue->constval.vfloat) + 1;
|
|
|
|
if (parser->tok == '}')
|
|
break;
|
|
if (parser->tok != ',') {
|
|
parseerror(parser, "expected `}` or comma after expression");
|
|
goto onerror;
|
|
}
|
|
}
|
|
|
|
/* patch them all (for reversed attribute) */
|
|
if (reverse) {
|
|
size_t i;
|
|
for (i = 0; i < vec_size(values); i++)
|
|
values[i]->constval.vfloat = vec_size(values) - i - 1;
|
|
}
|
|
|
|
if (parser->tok != '}') {
|
|
parseerror(parser, "internal error: breaking without `}`");
|
|
goto onerror;
|
|
}
|
|
|
|
if (!parser_next(parser) || parser->tok != ';') {
|
|
parseerror(parser, "expected semicolon after enumeration");
|
|
goto onerror;
|
|
}
|
|
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "parse error after enumeration");
|
|
goto onerror;
|
|
}
|
|
|
|
vec_free(values);
|
|
return true;
|
|
|
|
onerror:
|
|
vec_free(values);
|
|
return false;
|
|
}
|
|
|
|
static bool parse_block_into(parser_t *parser, ast_block *block)
|
|
{
|
|
bool retval = true;
|
|
|
|
parser_enterblock(parser);
|
|
|
|
if (!parser_next(parser)) { /* skip the '{' */
|
|
parseerror(parser, "expected function body");
|
|
goto cleanup;
|
|
}
|
|
|
|
while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
|
|
{
|
|
ast_expression *expr = NULL;
|
|
if (parser->tok == '}')
|
|
break;
|
|
|
|
if (!parse_statement(parser, block, &expr, false)) {
|
|
/* parseerror(parser, "parse error"); */
|
|
block = NULL;
|
|
goto cleanup;
|
|
}
|
|
if (!expr)
|
|
continue;
|
|
if (!ast_block_add_expr(block, expr)) {
|
|
ast_delete(block);
|
|
block = NULL;
|
|
goto cleanup;
|
|
}
|
|
}
|
|
|
|
if (parser->tok != '}') {
|
|
block = NULL;
|
|
} else {
|
|
(void)parser_next(parser);
|
|
}
|
|
|
|
cleanup:
|
|
if (!parser_leaveblock(parser))
|
|
retval = false;
|
|
return retval && !!block;
|
|
}
|
|
|
|
static ast_block* parse_block(parser_t *parser)
|
|
{
|
|
ast_block *block;
|
|
block = ast_block_new(parser_ctx(parser));
|
|
if (!block)
|
|
return NULL;
|
|
if (!parse_block_into(parser, block)) {
|
|
ast_block_delete(block);
|
|
return NULL;
|
|
}
|
|
return block;
|
|
}
|
|
|
|
static bool parse_statement_or_block(parser_t *parser, ast_expression **out)
|
|
{
|
|
if (parser->tok == '{') {
|
|
*out = (ast_expression*)parse_block(parser);
|
|
return !!*out;
|
|
}
|
|
return parse_statement(parser, NULL, out, false);
|
|
}
|
|
|
|
static bool create_vector_members(ast_value *var, ast_member **me)
|
|
{
|
|
size_t i;
|
|
size_t len = strlen(var->name);
|
|
|
|
for (i = 0; i < 3; ++i) {
|
|
char *name = (char*)mem_a(len+3);
|
|
memcpy(name, var->name, len);
|
|
name[len+0] = '_';
|
|
name[len+1] = 'x'+i;
|
|
name[len+2] = 0;
|
|
me[i] = ast_member_new(ast_ctx(var), (ast_expression*)var, i, name);
|
|
mem_d(name);
|
|
if (!me[i])
|
|
break;
|
|
}
|
|
if (i == 3)
|
|
return true;
|
|
|
|
/* unroll */
|
|
do { ast_member_delete(me[--i]); } while(i);
|
|
return false;
|
|
}
|
|
|
|
static bool parse_function_body(parser_t *parser, ast_value *var)
|
|
{
|
|
ast_block *block = NULL;
|
|
ast_function *func;
|
|
ast_function *old;
|
|
size_t parami;
|
|
|
|
ast_expression *framenum = NULL;
|
|
ast_expression *nextthink = NULL;
|
|
/* None of the following have to be deleted */
|
|
ast_expression *fld_think = NULL, *fld_nextthink = NULL, *fld_frame = NULL;
|
|
ast_expression *gbl_time = NULL, *gbl_self = NULL;
|
|
bool has_frame_think;
|
|
|
|
bool retval = true;
|
|
|
|
has_frame_think = false;
|
|
old = parser->function;
|
|
|
|
if (var->expression.flags & AST_FLAG_ALIAS) {
|
|
parseerror(parser, "function aliases cannot have bodies");
|
|
return false;
|
|
}
|
|
|
|
if (vec_size(parser->gotos) || vec_size(parser->labels)) {
|
|
parseerror(parser, "gotos/labels leaking");
|
|
return false;
|
|
}
|
|
|
|
if (!OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC) {
|
|
if (parsewarning(parser, WARN_VARIADIC_FUNCTION,
|
|
"variadic function with implementation will not be able to access additional parameters (try -fvariadic-args)"))
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (parser->tok == '[') {
|
|
/* got a frame definition: [ framenum, nextthink ]
|
|
* this translates to:
|
|
* self.frame = framenum;
|
|
* self.nextthink = time + 0.1;
|
|
* self.think = nextthink;
|
|
*/
|
|
nextthink = NULL;
|
|
|
|
fld_think = parser_find_field(parser, "think");
|
|
fld_nextthink = parser_find_field(parser, "nextthink");
|
|
fld_frame = parser_find_field(parser, "frame");
|
|
if (!fld_think || !fld_nextthink || !fld_frame) {
|
|
parseerror(parser, "cannot use [frame,think] notation without the required fields");
|
|
parseerror(parser, "please declare the following entityfields: `frame`, `think`, `nextthink`");
|
|
return false;
|
|
}
|
|
gbl_time = parser_find_global(parser, "time");
|
|
gbl_self = parser_find_global(parser, "self");
|
|
if (!gbl_time || !gbl_self) {
|
|
parseerror(parser, "cannot use [frame,think] notation without the required globals");
|
|
parseerror(parser, "please declare the following globals: `time`, `self`");
|
|
return false;
|
|
}
|
|
|
|
if (!parser_next(parser))
|
|
return false;
|
|
|
|
framenum = parse_expression_leave(parser, true, false, false);
|
|
if (!framenum) {
|
|
parseerror(parser, "expected a framenumber constant in[frame,think] notation");
|
|
return false;
|
|
}
|
|
if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->hasvalue) {
|
|
ast_unref(framenum);
|
|
parseerror(parser, "framenumber in [frame,think] notation must be a constant");
|
|
return false;
|
|
}
|
|
|
|
if (parser->tok != ',') {
|
|
ast_unref(framenum);
|
|
parseerror(parser, "expected comma after frame number in [frame,think] notation");
|
|
parseerror(parser, "Got a %i\n", parser->tok);
|
|
return false;
|
|
}
|
|
|
|
if (!parser_next(parser)) {
|
|
ast_unref(framenum);
|
|
return false;
|
|
}
|
|
|
|
if (parser->tok == TOKEN_IDENT && !parser_find_var(parser, parser_tokval(parser)))
|
|
{
|
|
/* qc allows the use of not-yet-declared functions here
|
|
* - this automatically creates a prototype */
|
|
ast_value *thinkfunc;
|
|
ast_expression *functype = fld_think->next;
|
|
|
|
thinkfunc = ast_value_new(parser_ctx(parser), parser_tokval(parser), functype->vtype);
|
|
if (!thinkfunc) { /* || !ast_type_adopt(thinkfunc, functype)*/
|
|
ast_unref(framenum);
|
|
parseerror(parser, "failed to create implicit prototype for `%s`", parser_tokval(parser));
|
|
return false;
|
|
}
|
|
ast_type_adopt(thinkfunc, functype);
|
|
|
|
if (!parser_next(parser)) {
|
|
ast_unref(framenum);
|
|
ast_delete(thinkfunc);
|
|
return false;
|
|
}
|
|
|
|
parser_addglobal(parser, thinkfunc->name, (ast_expression*)thinkfunc);
|
|
|
|
nextthink = (ast_expression*)thinkfunc;
|
|
|
|
} else {
|
|
nextthink = parse_expression_leave(parser, true, false, false);
|
|
if (!nextthink) {
|
|
ast_unref(framenum);
|
|
parseerror(parser, "expected a think-function in [frame,think] notation");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (!ast_istype(nextthink, ast_value)) {
|
|
parseerror(parser, "think-function in [frame,think] notation must be a constant");
|
|
retval = false;
|
|
}
|
|
|
|
if (retval && parser->tok != ']') {
|
|
parseerror(parser, "expected closing `]` for [frame,think] notation");
|
|
retval = false;
|
|
}
|
|
|
|
if (retval && !parser_next(parser)) {
|
|
retval = false;
|
|
}
|
|
|
|
if (retval && parser->tok != '{') {
|
|
parseerror(parser, "a function body has to be declared after a [frame,think] declaration");
|
|
retval = false;
|
|
}
|
|
|
|
if (!retval) {
|
|
ast_unref(nextthink);
|
|
ast_unref(framenum);
|
|
return false;
|
|
}
|
|
|
|
has_frame_think = true;
|
|
}
|
|
|
|
block = ast_block_new(parser_ctx(parser));
|
|
if (!block) {
|
|
parseerror(parser, "failed to allocate block");
|
|
if (has_frame_think) {
|
|
ast_unref(nextthink);
|
|
ast_unref(framenum);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
if (has_frame_think) {
|
|
lex_ctx ctx;
|
|
ast_expression *self_frame;
|
|
ast_expression *self_nextthink;
|
|
ast_expression *self_think;
|
|
ast_expression *time_plus_1;
|
|
ast_store *store_frame;
|
|
ast_store *store_nextthink;
|
|
ast_store *store_think;
|
|
|
|
ctx = parser_ctx(parser);
|
|
self_frame = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_frame);
|
|
self_nextthink = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_nextthink);
|
|
self_think = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_think);
|
|
|
|
time_plus_1 = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F,
|
|
gbl_time, (ast_expression*)parser_const_float(parser, 0.1));
|
|
|
|
if (!self_frame || !self_nextthink || !self_think || !time_plus_1) {
|
|
if (self_frame) ast_delete(self_frame);
|
|
if (self_nextthink) ast_delete(self_nextthink);
|
|
if (self_think) ast_delete(self_think);
|
|
if (time_plus_1) ast_delete(time_plus_1);
|
|
retval = false;
|
|
}
|
|
|
|
if (retval)
|
|
{
|
|
store_frame = ast_store_new(ctx, INSTR_STOREP_F, self_frame, framenum);
|
|
store_nextthink = ast_store_new(ctx, INSTR_STOREP_F, self_nextthink, time_plus_1);
|
|
store_think = ast_store_new(ctx, INSTR_STOREP_FNC, self_think, nextthink);
|
|
|
|
if (!store_frame) {
|
|
ast_delete(self_frame);
|
|
retval = false;
|
|
}
|
|
if (!store_nextthink) {
|
|
ast_delete(self_nextthink);
|
|
retval = false;
|
|
}
|
|
if (!store_think) {
|
|
ast_delete(self_think);
|
|
retval = false;
|
|
}
|
|
if (!retval) {
|
|
if (store_frame) ast_delete(store_frame);
|
|
if (store_nextthink) ast_delete(store_nextthink);
|
|
if (store_think) ast_delete(store_think);
|
|
retval = false;
|
|
}
|
|
if (!ast_block_add_expr(block, (ast_expression*)store_frame) ||
|
|
!ast_block_add_expr(block, (ast_expression*)store_nextthink) ||
|
|
!ast_block_add_expr(block, (ast_expression*)store_think))
|
|
{
|
|
retval = false;
|
|
}
|
|
}
|
|
|
|
if (!retval) {
|
|
parseerror(parser, "failed to generate code for [frame,think]");
|
|
ast_unref(nextthink);
|
|
ast_unref(framenum);
|
|
ast_delete(block);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (var->hasvalue) {
|
|
parseerror(parser, "function `%s` declared with multiple bodies", var->name);
|
|
ast_block_delete(block);
|
|
goto enderr;
|
|
}
|
|
|
|
func = ast_function_new(ast_ctx(var), var->name, var);
|
|
if (!func) {
|
|
parseerror(parser, "failed to allocate function for `%s`", var->name);
|
|
ast_block_delete(block);
|
|
goto enderr;
|
|
}
|
|
vec_push(parser->functions, func);
|
|
|
|
parser_enterblock(parser);
|
|
|
|
for (parami = 0; parami < vec_size(var->expression.params); ++parami) {
|
|
size_t e;
|
|
ast_value *param = var->expression.params[parami];
|
|
ast_member *me[3];
|
|
|
|
if (param->expression.vtype != TYPE_VECTOR &&
|
|
(param->expression.vtype != TYPE_FIELD ||
|
|
param->expression.next->vtype != TYPE_VECTOR))
|
|
{
|
|
continue;
|
|
}
|
|
|
|
if (!create_vector_members(param, me)) {
|
|
ast_block_delete(block);
|
|
goto enderrfn;
|
|
}
|
|
|
|
for (e = 0; e < 3; ++e) {
|
|
parser_addlocal(parser, me[e]->name, (ast_expression*)me[e]);
|
|
ast_block_collect(block, (ast_expression*)me[e]);
|
|
}
|
|
}
|
|
|
|
if (var->argcounter) {
|
|
ast_value *argc = ast_value_new(ast_ctx(var), var->argcounter, TYPE_FLOAT);
|
|
parser_addlocal(parser, argc->name, (ast_expression*)argc);
|
|
func->argc = argc;
|
|
}
|
|
|
|
if (OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC) {
|
|
char name[1024];
|
|
ast_value *varargs = ast_value_new(ast_ctx(var), "reserved:va_args", TYPE_ARRAY);
|
|
varargs->expression.flags |= AST_FLAG_IS_VARARG;
|
|
varargs->expression.next = (ast_expression*)ast_value_new(ast_ctx(var), NULL, TYPE_VECTOR);
|
|
varargs->expression.count = 0;
|
|
util_snprintf(name, sizeof(name), "%s##va##SET", var->name);
|
|
if (!parser_create_array_setter_proto(parser, varargs, name)) {
|
|
ast_delete(varargs);
|
|
ast_block_delete(block);
|
|
goto enderrfn;
|
|
}
|
|
util_snprintf(name, sizeof(name), "%s##va##GET", var->name);
|
|
if (!parser_create_array_getter_proto(parser, varargs, varargs->expression.next, name)) {
|
|
ast_delete(varargs);
|
|
ast_block_delete(block);
|
|
goto enderrfn;
|
|
}
|
|
func->varargs = varargs;
|
|
|
|
func->fixedparams = parser_const_float(parser, vec_size(var->expression.params));
|
|
}
|
|
|
|
parser->function = func;
|
|
if (!parse_block_into(parser, block)) {
|
|
ast_block_delete(block);
|
|
goto enderrfn;
|
|
}
|
|
|
|
vec_push(func->blocks, block);
|
|
|
|
|
|
parser->function = old;
|
|
if (!parser_leaveblock(parser))
|
|
retval = false;
|
|
if (vec_size(parser->variables) != PARSER_HT_LOCALS) {
|
|
parseerror(parser, "internal error: local scopes left");
|
|
retval = false;
|
|
}
|
|
|
|
if (parser->tok == ';')
|
|
return parser_next(parser);
|
|
else if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
|
|
parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)");
|
|
return retval;
|
|
|
|
enderrfn:
|
|
(void)!parser_leaveblock(parser);
|
|
vec_pop(parser->functions);
|
|
ast_function_delete(func);
|
|
var->constval.vfunc = NULL;
|
|
|
|
enderr:
|
|
parser->function = old;
|
|
return false;
|
|
}
|
|
|
|
static ast_expression *array_accessor_split(
|
|
parser_t *parser,
|
|
ast_value *array,
|
|
ast_value *index,
|
|
size_t middle,
|
|
ast_expression *left,
|
|
ast_expression *right
|
|
)
|
|
{
|
|
ast_ifthen *ifthen;
|
|
ast_binary *cmp;
|
|
|
|
lex_ctx ctx = ast_ctx(array);
|
|
|
|
if (!left || !right) {
|
|
if (left) ast_delete(left);
|
|
if (right) ast_delete(right);
|
|
return NULL;
|
|
}
|
|
|
|
cmp = ast_binary_new(ctx, INSTR_LT,
|
|
(ast_expression*)index,
|
|
(ast_expression*)parser_const_float(parser, middle));
|
|
if (!cmp) {
|
|
ast_delete(left);
|
|
ast_delete(right);
|
|
parseerror(parser, "internal error: failed to create comparison for array setter");
|
|
return NULL;
|
|
}
|
|
|
|
ifthen = ast_ifthen_new(ctx, (ast_expression*)cmp, left, right);
|
|
if (!ifthen) {
|
|
ast_delete(cmp); /* will delete left and right */
|
|
parseerror(parser, "internal error: failed to create conditional jump for array setter");
|
|
return NULL;
|
|
}
|
|
|
|
return (ast_expression*)ifthen;
|
|
}
|
|
|
|
static ast_expression *array_setter_node(parser_t *parser, ast_value *array, ast_value *index, ast_value *value, size_t from, size_t afterend)
|
|
{
|
|
lex_ctx ctx = ast_ctx(array);
|
|
|
|
if (from+1 == afterend) {
|
|
/* set this value */
|
|
ast_block *block;
|
|
ast_return *ret;
|
|
ast_array_index *subscript;
|
|
ast_store *st;
|
|
int assignop = type_store_instr[value->expression.vtype];
|
|
|
|
if (value->expression.vtype == TYPE_FIELD && value->expression.next->vtype == TYPE_VECTOR)
|
|
assignop = INSTR_STORE_V;
|
|
|
|
subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
|
|
if (!subscript)
|
|
return NULL;
|
|
|
|
st = ast_store_new(ctx, assignop, (ast_expression*)subscript, (ast_expression*)value);
|
|
if (!st) {
|
|
ast_delete(subscript);
|
|
return NULL;
|
|
}
|
|
|
|
block = ast_block_new(ctx);
|
|
if (!block) {
|
|
ast_delete(st);
|
|
return NULL;
|
|
}
|
|
|
|
if (!ast_block_add_expr(block, (ast_expression*)st)) {
|
|
ast_delete(block);
|
|
return NULL;
|
|
}
|
|
|
|
ret = ast_return_new(ctx, NULL);
|
|
if (!ret) {
|
|
ast_delete(block);
|
|
return NULL;
|
|
}
|
|
|
|
if (!ast_block_add_expr(block, (ast_expression*)ret)) {
|
|
ast_delete(block);
|
|
return NULL;
|
|
}
|
|
|
|
return (ast_expression*)block;
|
|
} else {
|
|
ast_expression *left, *right;
|
|
size_t diff = afterend - from;
|
|
size_t middle = from + diff/2;
|
|
left = array_setter_node(parser, array, index, value, from, middle);
|
|
right = array_setter_node(parser, array, index, value, middle, afterend);
|
|
return array_accessor_split(parser, array, index, middle, left, right);
|
|
}
|
|
}
|
|
|
|
static ast_expression *array_field_setter_node(
|
|
parser_t *parser,
|
|
ast_value *array,
|
|
ast_value *entity,
|
|
ast_value *index,
|
|
ast_value *value,
|
|
size_t from,
|
|
size_t afterend)
|
|
{
|
|
lex_ctx ctx = ast_ctx(array);
|
|
|
|
if (from+1 == afterend) {
|
|
/* set this value */
|
|
ast_block *block;
|
|
ast_return *ret;
|
|
ast_entfield *entfield;
|
|
ast_array_index *subscript;
|
|
ast_store *st;
|
|
int assignop = type_storep_instr[value->expression.vtype];
|
|
|
|
if (value->expression.vtype == TYPE_FIELD && value->expression.next->vtype == TYPE_VECTOR)
|
|
assignop = INSTR_STOREP_V;
|
|
|
|
subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
|
|
if (!subscript)
|
|
return NULL;
|
|
|
|
subscript->expression.next = ast_type_copy(ast_ctx(subscript), (ast_expression*)subscript);
|
|
subscript->expression.vtype = TYPE_FIELD;
|
|
|
|
entfield = ast_entfield_new_force(ctx,
|
|
(ast_expression*)entity,
|
|
(ast_expression*)subscript,
|
|
(ast_expression*)subscript);
|
|
if (!entfield) {
|
|
ast_delete(subscript);
|
|
return NULL;
|
|
}
|
|
|
|
st = ast_store_new(ctx, assignop, (ast_expression*)entfield, (ast_expression*)value);
|
|
if (!st) {
|
|
ast_delete(entfield);
|
|
return NULL;
|
|
}
|
|
|
|
block = ast_block_new(ctx);
|
|
if (!block) {
|
|
ast_delete(st);
|
|
return NULL;
|
|
}
|
|
|
|
if (!ast_block_add_expr(block, (ast_expression*)st)) {
|
|
ast_delete(block);
|
|
return NULL;
|
|
}
|
|
|
|
ret = ast_return_new(ctx, NULL);
|
|
if (!ret) {
|
|
ast_delete(block);
|
|
return NULL;
|
|
}
|
|
|
|
if (!ast_block_add_expr(block, (ast_expression*)ret)) {
|
|
ast_delete(block);
|
|
return NULL;
|
|
}
|
|
|
|
return (ast_expression*)block;
|
|
} else {
|
|
ast_expression *left, *right;
|
|
size_t diff = afterend - from;
|
|
size_t middle = from + diff/2;
|
|
left = array_field_setter_node(parser, array, entity, index, value, from, middle);
|
|
right = array_field_setter_node(parser, array, entity, index, value, middle, afterend);
|
|
return array_accessor_split(parser, array, index, middle, left, right);
|
|
}
|
|
}
|
|
|
|
static ast_expression *array_getter_node(parser_t *parser, ast_value *array, ast_value *index, size_t from, size_t afterend)
|
|
{
|
|
lex_ctx ctx = ast_ctx(array);
|
|
|
|
if (from+1 == afterend) {
|
|
ast_return *ret;
|
|
ast_array_index *subscript;
|
|
|
|
subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
|
|
if (!subscript)
|
|
return NULL;
|
|
|
|
ret = ast_return_new(ctx, (ast_expression*)subscript);
|
|
if (!ret) {
|
|
ast_delete(subscript);
|
|
return NULL;
|
|
}
|
|
|
|
return (ast_expression*)ret;
|
|
} else {
|
|
ast_expression *left, *right;
|
|
size_t diff = afterend - from;
|
|
size_t middle = from + diff/2;
|
|
left = array_getter_node(parser, array, index, from, middle);
|
|
right = array_getter_node(parser, array, index, middle, afterend);
|
|
return array_accessor_split(parser, array, index, middle, left, right);
|
|
}
|
|
}
|
|
|
|
static bool parser_create_array_accessor(parser_t *parser, ast_value *array, const char *funcname, ast_value **out)
|
|
{
|
|
ast_function *func = NULL;
|
|
ast_value *fval = NULL;
|
|
ast_block *body = NULL;
|
|
|
|
fval = ast_value_new(ast_ctx(array), funcname, TYPE_FUNCTION);
|
|
if (!fval) {
|
|
parseerror(parser, "failed to create accessor function value");
|
|
return false;
|
|
}
|
|
|
|
func = ast_function_new(ast_ctx(array), funcname, fval);
|
|
if (!func) {
|
|
ast_delete(fval);
|
|
parseerror(parser, "failed to create accessor function node");
|
|
return false;
|
|
}
|
|
|
|
body = ast_block_new(ast_ctx(array));
|
|
if (!body) {
|
|
parseerror(parser, "failed to create block for array accessor");
|
|
ast_delete(fval);
|
|
ast_delete(func);
|
|
return false;
|
|
}
|
|
|
|
vec_push(func->blocks, body);
|
|
*out = fval;
|
|
|
|
vec_push(parser->accessors, fval);
|
|
|
|
return true;
|
|
}
|
|
|
|
static ast_value* parser_create_array_setter_proto(parser_t *parser, ast_value *array, const char *funcname)
|
|
{
|
|
ast_value *index = NULL;
|
|
ast_value *value = NULL;
|
|
ast_function *func;
|
|
ast_value *fval;
|
|
|
|
if (!ast_istype(array->expression.next, ast_value)) {
|
|
parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
|
|
return NULL;
|
|
}
|
|
|
|
if (!parser_create_array_accessor(parser, array, funcname, &fval))
|
|
return NULL;
|
|
func = fval->constval.vfunc;
|
|
fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
|
|
|
|
index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
|
|
value = ast_value_copy((ast_value*)array->expression.next);
|
|
|
|
if (!index || !value) {
|
|
parseerror(parser, "failed to create locals for array accessor");
|
|
goto cleanup;
|
|
}
|
|
(void)!ast_value_set_name(value, "value"); /* not important */
|
|
vec_push(fval->expression.params, index);
|
|
vec_push(fval->expression.params, value);
|
|
|
|
array->setter = fval;
|
|
return fval;
|
|
cleanup:
|
|
if (index) ast_delete(index);
|
|
if (value) ast_delete(value);
|
|
ast_delete(func);
|
|
ast_delete(fval);
|
|
return NULL;
|
|
}
|
|
|
|
static bool parser_create_array_setter_impl(parser_t *parser, ast_value *array)
|
|
{
|
|
ast_expression *root = NULL;
|
|
root = array_setter_node(parser, array,
|
|
array->setter->expression.params[0],
|
|
array->setter->expression.params[1],
|
|
0, array->expression.count);
|
|
if (!root) {
|
|
parseerror(parser, "failed to build accessor search tree");
|
|
return false;
|
|
}
|
|
if (!ast_block_add_expr(array->setter->constval.vfunc->blocks[0], root)) {
|
|
ast_delete(root);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static bool parser_create_array_setter(parser_t *parser, ast_value *array, const char *funcname)
|
|
{
|
|
if (!parser_create_array_setter_proto(parser, array, funcname))
|
|
return false;
|
|
return parser_create_array_setter_impl(parser, array);
|
|
}
|
|
|
|
static bool parser_create_array_field_setter(parser_t *parser, ast_value *array, const char *funcname)
|
|
{
|
|
ast_expression *root = NULL;
|
|
ast_value *entity = NULL;
|
|
ast_value *index = NULL;
|
|
ast_value *value = NULL;
|
|
ast_function *func;
|
|
ast_value *fval;
|
|
|
|
if (!ast_istype(array->expression.next, ast_value)) {
|
|
parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
|
|
return false;
|
|
}
|
|
|
|
if (!parser_create_array_accessor(parser, array, funcname, &fval))
|
|
return false;
|
|
func = fval->constval.vfunc;
|
|
fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
|
|
|
|
entity = ast_value_new(ast_ctx(array), "entity", TYPE_ENTITY);
|
|
index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
|
|
value = ast_value_copy((ast_value*)array->expression.next);
|
|
if (!entity || !index || !value) {
|
|
parseerror(parser, "failed to create locals for array accessor");
|
|
goto cleanup;
|
|
}
|
|
(void)!ast_value_set_name(value, "value"); /* not important */
|
|
vec_push(fval->expression.params, entity);
|
|
vec_push(fval->expression.params, index);
|
|
vec_push(fval->expression.params, value);
|
|
|
|
root = array_field_setter_node(parser, array, entity, index, value, 0, array->expression.count);
|
|
if (!root) {
|
|
parseerror(parser, "failed to build accessor search tree");
|
|
goto cleanup;
|
|
}
|
|
|
|
array->setter = fval;
|
|
return ast_block_add_expr(func->blocks[0], root);
|
|
cleanup:
|
|
if (entity) ast_delete(entity);
|
|
if (index) ast_delete(index);
|
|
if (value) ast_delete(value);
|
|
if (root) ast_delete(root);
|
|
ast_delete(func);
|
|
ast_delete(fval);
|
|
return false;
|
|
}
|
|
|
|
static ast_value* parser_create_array_getter_proto(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
|
|
{
|
|
ast_value *index = NULL;
|
|
ast_value *fval;
|
|
ast_function *func;
|
|
|
|
/* NOTE: checking array->expression.next rather than elemtype since
|
|
* for fields elemtype is a temporary fieldtype.
|
|
*/
|
|
if (!ast_istype(array->expression.next, ast_value)) {
|
|
parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
|
|
return NULL;
|
|
}
|
|
|
|
if (!parser_create_array_accessor(parser, array, funcname, &fval))
|
|
return NULL;
|
|
func = fval->constval.vfunc;
|
|
fval->expression.next = ast_type_copy(ast_ctx(array), elemtype);
|
|
|
|
index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
|
|
|
|
if (!index) {
|
|
parseerror(parser, "failed to create locals for array accessor");
|
|
goto cleanup;
|
|
}
|
|
vec_push(fval->expression.params, index);
|
|
|
|
array->getter = fval;
|
|
return fval;
|
|
cleanup:
|
|
if (index) ast_delete(index);
|
|
ast_delete(func);
|
|
ast_delete(fval);
|
|
return NULL;
|
|
}
|
|
|
|
static bool parser_create_array_getter_impl(parser_t *parser, ast_value *array)
|
|
{
|
|
ast_expression *root = NULL;
|
|
|
|
root = array_getter_node(parser, array, array->getter->expression.params[0], 0, array->expression.count);
|
|
if (!root) {
|
|
parseerror(parser, "failed to build accessor search tree");
|
|
return false;
|
|
}
|
|
if (!ast_block_add_expr(array->getter->constval.vfunc->blocks[0], root)) {
|
|
ast_delete(root);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static bool parser_create_array_getter(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
|
|
{
|
|
if (!parser_create_array_getter_proto(parser, array, elemtype, funcname))
|
|
return false;
|
|
return parser_create_array_getter_impl(parser, array);
|
|
}
|
|
|
|
static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
|
|
static ast_value *parse_parameter_list(parser_t *parser, ast_value *var)
|
|
{
|
|
lex_ctx ctx;
|
|
size_t i;
|
|
ast_value **params;
|
|
ast_value *param;
|
|
ast_value *fval;
|
|
bool first = true;
|
|
bool variadic = false;
|
|
ast_value *varparam = NULL;
|
|
char *argcounter = NULL;
|
|
|
|
ctx = parser_ctx(parser);
|
|
|
|
/* for the sake of less code we parse-in in this function */
|
|
if (!parser_next(parser)) {
|
|
ast_delete(var);
|
|
parseerror(parser, "expected parameter list");
|
|
return NULL;
|
|
}
|
|
|
|
params = NULL;
|
|
|
|
/* parse variables until we hit a closing paren */
|
|
while (parser->tok != ')') {
|
|
if (!first) {
|
|
/* there must be commas between them */
|
|
if (parser->tok != ',') {
|
|
parseerror(parser, "expected comma or end of parameter list");
|
|
goto on_error;
|
|
}
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected parameter");
|
|
goto on_error;
|
|
}
|
|
}
|
|
first = false;
|
|
|
|
if (parser->tok == TOKEN_DOTS) {
|
|
/* '...' indicates a varargs function */
|
|
variadic = true;
|
|
if (!parser_next(parser) || (parser->tok != ')' && parser->tok != TOKEN_IDENT)) {
|
|
parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
|
|
goto on_error;
|
|
}
|
|
if (parser->tok == TOKEN_IDENT) {
|
|
argcounter = util_strdup(parser_tokval(parser));
|
|
if (!parser_next(parser) || parser->tok != ')') {
|
|
parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
|
|
goto on_error;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* for anything else just parse a typename */
|
|
param = parse_typename(parser, NULL, NULL);
|
|
if (!param)
|
|
goto on_error;
|
|
vec_push(params, param);
|
|
if (param->expression.vtype >= TYPE_VARIANT) {
|
|
char tname[1024]; /* typename is reserved in C++ */
|
|
ast_type_to_string((ast_expression*)param, tname, sizeof(tname));
|
|
parseerror(parser, "type not supported as part of a parameter list: %s", tname);
|
|
goto on_error;
|
|
}
|
|
/* type-restricted varargs */
|
|
if (parser->tok == TOKEN_DOTS) {
|
|
variadic = true;
|
|
varparam = vec_last(params);
|
|
vec_pop(params);
|
|
if (!parser_next(parser) || (parser->tok != ')' && parser->tok != TOKEN_IDENT)) {
|
|
parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
|
|
goto on_error;
|
|
}
|
|
if (parser->tok == TOKEN_IDENT) {
|
|
argcounter = util_strdup(parser_tokval(parser));
|
|
if (!parser_next(parser) || parser->tok != ')') {
|
|
parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
|
|
goto on_error;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (vec_size(params) == 1 && params[0]->expression.vtype == TYPE_VOID)
|
|
vec_free(params);
|
|
|
|
/* sanity check */
|
|
if (vec_size(params) > 8 && OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
|
|
(void)!parsewarning(parser, WARN_EXTENSIONS, "more than 8 parameters are not supported by this standard");
|
|
|
|
/* parse-out */
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "parse error after typename");
|
|
goto on_error;
|
|
}
|
|
|
|
/* now turn 'var' into a function type */
|
|
fval = ast_value_new(ctx, "<type()>", TYPE_FUNCTION);
|
|
fval->expression.next = (ast_expression*)var;
|
|
if (variadic)
|
|
fval->expression.flags |= AST_FLAG_VARIADIC;
|
|
var = fval;
|
|
|
|
var->expression.params = params;
|
|
var->expression.varparam = (ast_expression*)varparam;
|
|
var->argcounter = argcounter;
|
|
params = NULL;
|
|
|
|
return var;
|
|
|
|
on_error:
|
|
if (argcounter)
|
|
mem_d(argcounter);
|
|
if (varparam)
|
|
ast_delete(varparam);
|
|
ast_delete(var);
|
|
for (i = 0; i < vec_size(params); ++i)
|
|
ast_delete(params[i]);
|
|
vec_free(params);
|
|
return NULL;
|
|
}
|
|
|
|
static ast_value *parse_arraysize(parser_t *parser, ast_value *var)
|
|
{
|
|
ast_expression *cexp;
|
|
ast_value *cval, *tmp;
|
|
lex_ctx ctx;
|
|
|
|
ctx = parser_ctx(parser);
|
|
|
|
if (!parser_next(parser)) {
|
|
ast_delete(var);
|
|
parseerror(parser, "expected array-size");
|
|
return NULL;
|
|
}
|
|
|
|
if (parser->tok != ']') {
|
|
cexp = parse_expression_leave(parser, true, false, false);
|
|
|
|
if (!cexp || !ast_istype(cexp, ast_value)) {
|
|
if (cexp)
|
|
ast_unref(cexp);
|
|
ast_delete(var);
|
|
parseerror(parser, "expected array-size as constant positive integer");
|
|
return NULL;
|
|
}
|
|
cval = (ast_value*)cexp;
|
|
}
|
|
else {
|
|
cexp = NULL;
|
|
cval = NULL;
|
|
}
|
|
|
|
tmp = ast_value_new(ctx, "<type[]>", TYPE_ARRAY);
|
|
tmp->expression.next = (ast_expression*)var;
|
|
var = tmp;
|
|
|
|
if (cval) {
|
|
if (cval->expression.vtype == TYPE_INTEGER)
|
|
tmp->expression.count = cval->constval.vint;
|
|
else if (cval->expression.vtype == TYPE_FLOAT)
|
|
tmp->expression.count = cval->constval.vfloat;
|
|
else {
|
|
ast_unref(cexp);
|
|
ast_delete(var);
|
|
parseerror(parser, "array-size must be a positive integer constant");
|
|
return NULL;
|
|
}
|
|
|
|
ast_unref(cexp);
|
|
} else {
|
|
var->expression.count = -1;
|
|
var->expression.flags |= AST_FLAG_ARRAY_INIT;
|
|
}
|
|
|
|
if (parser->tok != ']') {
|
|
ast_delete(var);
|
|
parseerror(parser, "expected ']' after array-size");
|
|
return NULL;
|
|
}
|
|
if (!parser_next(parser)) {
|
|
ast_delete(var);
|
|
parseerror(parser, "error after parsing array size");
|
|
return NULL;
|
|
}
|
|
return var;
|
|
}
|
|
|
|
/* Parse a complete typename.
|
|
* for single-variables (ie. function parameters or typedefs) storebase should be NULL
|
|
* but when parsing variables separated by comma
|
|
* 'storebase' should point to where the base-type should be kept.
|
|
* The base type makes up every bit of type information which comes *before* the
|
|
* variable name.
|
|
*
|
|
* The following will be parsed in its entirety:
|
|
* void() foo()
|
|
* The 'basetype' in this case is 'void()'
|
|
* and if there's a comma after it, say:
|
|
* void() foo(), bar
|
|
* then the type-information 'void()' can be stored in 'storebase'
|
|
*/
|
|
static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef)
|
|
{
|
|
ast_value *var, *tmp;
|
|
lex_ctx ctx;
|
|
|
|
const char *name = NULL;
|
|
bool isfield = false;
|
|
bool wasarray = false;
|
|
size_t morefields = 0;
|
|
|
|
ctx = parser_ctx(parser);
|
|
|
|
/* types may start with a dot */
|
|
if (parser->tok == '.') {
|
|
isfield = true;
|
|
/* if we parsed a dot we need a typename now */
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected typename for field definition");
|
|
return NULL;
|
|
}
|
|
|
|
/* Further dots are handled seperately because they won't be part of the
|
|
* basetype
|
|
*/
|
|
while (parser->tok == '.') {
|
|
++morefields;
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected typename for field definition");
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
if (parser->tok == TOKEN_IDENT)
|
|
cached_typedef = parser_find_typedef(parser, parser_tokval(parser), 0);
|
|
if (!cached_typedef && parser->tok != TOKEN_TYPENAME) {
|
|
parseerror(parser, "expected typename");
|
|
return NULL;
|
|
}
|
|
|
|
/* generate the basic type value */
|
|
if (cached_typedef) {
|
|
var = ast_value_copy(cached_typedef);
|
|
ast_value_set_name(var, "<type(from_def)>");
|
|
} else
|
|
var = ast_value_new(ctx, "<type>", parser_token(parser)->constval.t);
|
|
|
|
for (; morefields; --morefields) {
|
|
tmp = ast_value_new(ctx, "<.type>", TYPE_FIELD);
|
|
tmp->expression.next = (ast_expression*)var;
|
|
var = tmp;
|
|
}
|
|
|
|
/* do not yet turn into a field - remember:
|
|
* .void() foo; is a field too
|
|
* .void()() foo; is a function
|
|
*/
|
|
|
|
/* parse on */
|
|
if (!parser_next(parser)) {
|
|
ast_delete(var);
|
|
parseerror(parser, "parse error after typename");
|
|
return NULL;
|
|
}
|
|
|
|
/* an opening paren now starts the parameter-list of a function
|
|
* this is where original-QC has parameter lists.
|
|
* We allow a single parameter list here.
|
|
* Much like fteqcc we don't allow `float()() x`
|
|
*/
|
|
if (parser->tok == '(') {
|
|
var = parse_parameter_list(parser, var);
|
|
if (!var)
|
|
return NULL;
|
|
}
|
|
|
|
/* store the base if requested */
|
|
if (storebase) {
|
|
*storebase = ast_value_copy(var);
|
|
if (isfield) {
|
|
tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
|
|
tmp->expression.next = (ast_expression*)*storebase;
|
|
*storebase = tmp;
|
|
}
|
|
}
|
|
|
|
/* there may be a name now */
|
|
if (parser->tok == TOKEN_IDENT) {
|
|
name = util_strdup(parser_tokval(parser));
|
|
/* parse on */
|
|
if (!parser_next(parser)) {
|
|
ast_delete(var);
|
|
mem_d(name);
|
|
parseerror(parser, "error after variable or field declaration");
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/* now this may be an array */
|
|
if (parser->tok == '[') {
|
|
wasarray = true;
|
|
var = parse_arraysize(parser, var);
|
|
if (!var) {
|
|
if (name) mem_d(name);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/* This is the point where we can turn it into a field */
|
|
if (isfield) {
|
|
/* turn it into a field if desired */
|
|
tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
|
|
tmp->expression.next = (ast_expression*)var;
|
|
var = tmp;
|
|
}
|
|
|
|
/* now there may be function parens again */
|
|
if (parser->tok == '(' && OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
|
|
parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
|
|
if (parser->tok == '(' && wasarray)
|
|
parseerror(parser, "arrays as part of a return type is not supported");
|
|
while (parser->tok == '(') {
|
|
var = parse_parameter_list(parser, var);
|
|
if (!var) {
|
|
if (name) mem_d(name);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/* finally name it */
|
|
if (name) {
|
|
if (!ast_value_set_name(var, name)) {
|
|
ast_delete(var);
|
|
mem_d(name);
|
|
parseerror(parser, "internal error: failed to set name");
|
|
return NULL;
|
|
}
|
|
/* free the name, ast_value_set_name duplicates */
|
|
mem_d(name);
|
|
}
|
|
|
|
return var;
|
|
}
|
|
|
|
static bool parse_typedef(parser_t *parser)
|
|
{
|
|
ast_value *typevar, *oldtype;
|
|
ast_expression *old;
|
|
|
|
typevar = parse_typename(parser, NULL, NULL);
|
|
|
|
if (!typevar)
|
|
return false;
|
|
|
|
if ( (old = parser_find_var(parser, typevar->name)) ) {
|
|
parseerror(parser, "cannot define a type with the same name as a variable: %s\n"
|
|
" -> `%s` has been declared here: %s:%i",
|
|
typevar->name, ast_ctx(old).file, ast_ctx(old).line);
|
|
ast_delete(typevar);
|
|
return false;
|
|
}
|
|
|
|
if ( (oldtype = parser_find_typedef(parser, typevar->name, vec_last(parser->_blocktypedefs))) ) {
|
|
parseerror(parser, "type `%s` has already been declared here: %s:%i",
|
|
typevar->name, ast_ctx(oldtype).file, ast_ctx(oldtype).line);
|
|
ast_delete(typevar);
|
|
return false;
|
|
}
|
|
|
|
vec_push(parser->_typedefs, typevar);
|
|
util_htset(vec_last(parser->typedefs), typevar->name, typevar);
|
|
|
|
if (parser->tok != ';') {
|
|
parseerror(parser, "expected semicolon after typedef");
|
|
return false;
|
|
}
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "parse error after typedef");
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static const char *cvq_to_str(int cvq) {
|
|
switch (cvq) {
|
|
case CV_NONE: return "none";
|
|
case CV_VAR: return "`var`";
|
|
case CV_CONST: return "`const`";
|
|
default: return "<INVALID>";
|
|
}
|
|
}
|
|
|
|
static bool parser_check_qualifiers(parser_t *parser, const ast_value *var, const ast_value *proto)
|
|
{
|
|
bool av, ao;
|
|
if (proto->cvq != var->cvq) {
|
|
if (!(proto->cvq == CV_CONST && var->cvq == CV_NONE &&
|
|
!OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
|
|
parser->tok == '='))
|
|
{
|
|
return !parsewarning(parser, WARN_DIFFERENT_QUALIFIERS,
|
|
"`%s` declared with different qualifiers: %s\n"
|
|
" -> previous declaration here: %s:%i uses %s",
|
|
var->name, cvq_to_str(var->cvq),
|
|
ast_ctx(proto).file, ast_ctx(proto).line,
|
|
cvq_to_str(proto->cvq));
|
|
}
|
|
}
|
|
av = (var ->expression.flags & AST_FLAG_NORETURN);
|
|
ao = (proto->expression.flags & AST_FLAG_NORETURN);
|
|
if (!av != !ao) {
|
|
return !parsewarning(parser, WARN_DIFFERENT_ATTRIBUTES,
|
|
"`%s` declared with different attributes%s\n"
|
|
" -> previous declaration here: %s:%i",
|
|
var->name, (av ? ": noreturn" : ""),
|
|
ast_ctx(proto).file, ast_ctx(proto).line,
|
|
(ao ? ": noreturn" : ""));
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static bool create_array_accessors(parser_t *parser, ast_value *var)
|
|
{
|
|
char name[1024];
|
|
util_snprintf(name, sizeof(name), "%s##SET", var->name);
|
|
if (!parser_create_array_setter(parser, var, name))
|
|
return false;
|
|
util_snprintf(name, sizeof(name), "%s##GET", var->name);
|
|
if (!parser_create_array_getter(parser, var, var->expression.next, name))
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
static bool parse_array(parser_t *parser, ast_value *array)
|
|
{
|
|
if (array->initlist) {
|
|
parseerror(parser, "array already initialized elsewhere");
|
|
return false;
|
|
}
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "parse error in array initializer");
|
|
return false;
|
|
}
|
|
size_t i = 0;
|
|
while (parser->tok != '}') {
|
|
ast_value *v = (ast_value*)parse_expression_leave(parser, true, false, false);
|
|
if (!v)
|
|
return false;
|
|
if (!ast_istype(v, ast_value) || !v->hasvalue || v->cvq != CV_CONST) {
|
|
ast_unref(v);
|
|
parseerror(parser, "initializing element must be a compile time constant");
|
|
return false;
|
|
}
|
|
vec_push(array->initlist, v->constval);
|
|
if (v->expression.vtype == TYPE_STRING) {
|
|
array->initlist[i].vstring = util_strdupe(array->initlist[i].vstring);
|
|
++i;
|
|
}
|
|
ast_unref(v);
|
|
if (parser->tok == '}')
|
|
break;
|
|
if (parser->tok != ',' || !parser_next(parser)) {
|
|
parseerror(parser, "expected comma or '}' in element list");
|
|
return false;
|
|
}
|
|
}
|
|
if (!parser_next(parser) || parser->tok != ';') {
|
|
parseerror(parser, "expected semicolon after initializer, got %s");
|
|
return false;
|
|
}
|
|
/*
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "parse error after initializer");
|
|
return false;
|
|
}
|
|
*/
|
|
|
|
if (array->expression.flags & AST_FLAG_ARRAY_INIT) {
|
|
if (array->expression.count != (size_t)-1) {
|
|
parseerror(parser, "array `%s' has already been initialized with %u elements",
|
|
array->name, (unsigned)array->expression.count);
|
|
}
|
|
array->expression.count = vec_size(array->initlist);
|
|
if (!create_array_accessors(parser, array))
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofields, int qualifier, ast_value *cached_typedef, bool noref, bool is_static, uint32_t qflags, char *vstring)
|
|
{
|
|
ast_value *var;
|
|
ast_value *proto;
|
|
ast_expression *old;
|
|
bool was_end;
|
|
size_t i;
|
|
|
|
ast_value *basetype = NULL;
|
|
bool retval = true;
|
|
bool isparam = false;
|
|
bool isvector = false;
|
|
bool cleanvar = true;
|
|
bool wasarray = false;
|
|
|
|
ast_member *me[3] = { NULL, NULL, NULL };
|
|
|
|
if (!localblock && is_static)
|
|
parseerror(parser, "`static` qualifier is not supported in global scope");
|
|
|
|
/* get the first complete variable */
|
|
var = parse_typename(parser, &basetype, cached_typedef);
|
|
if (!var) {
|
|
if (basetype)
|
|
ast_delete(basetype);
|
|
return false;
|
|
}
|
|
|
|
while (true) {
|
|
proto = NULL;
|
|
wasarray = false;
|
|
|
|
/* Part 0: finish the type */
|
|
if (parser->tok == '(') {
|
|
if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
|
|
parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
|
|
var = parse_parameter_list(parser, var);
|
|
if (!var) {
|
|
retval = false;
|
|
goto cleanup;
|
|
}
|
|
}
|
|
/* we only allow 1-dimensional arrays */
|
|
if (parser->tok == '[') {
|
|
wasarray = true;
|
|
var = parse_arraysize(parser, var);
|
|
if (!var) {
|
|
retval = false;
|
|
goto cleanup;
|
|
}
|
|
}
|
|
if (parser->tok == '(' && wasarray) {
|
|
parseerror(parser, "arrays as part of a return type is not supported");
|
|
/* we'll still parse the type completely for now */
|
|
}
|
|
/* for functions returning functions */
|
|
while (parser->tok == '(') {
|
|
if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
|
|
parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
|
|
var = parse_parameter_list(parser, var);
|
|
if (!var) {
|
|
retval = false;
|
|
goto cleanup;
|
|
}
|
|
}
|
|
|
|
var->cvq = qualifier;
|
|
var->expression.flags |= qflags;
|
|
|
|
/*
|
|
* store the vstring back to var for alias and
|
|
* deprecation messages.
|
|
*/
|
|
if (var->expression.flags & AST_FLAG_DEPRECATED ||
|
|
var->expression.flags & AST_FLAG_ALIAS)
|
|
var->desc = vstring;
|
|
|
|
/* Part 1:
|
|
* check for validity: (end_sys_..., multiple-definitions, prototypes, ...)
|
|
* Also: if there was a prototype, `var` will be deleted and set to `proto` which
|
|
* is then filled with the previous definition and the parameter-names replaced.
|
|
*/
|
|
if (!strcmp(var->name, "nil")) {
|
|
if (OPTS_FLAG(UNTYPED_NIL)) {
|
|
if (!localblock || !OPTS_FLAG(PERMISSIVE))
|
|
parseerror(parser, "name `nil` not allowed (try -fpermissive)");
|
|
} else
|
|
(void)!parsewarning(parser, WARN_RESERVED_NAMES, "variable name `nil` is reserved");
|
|
}
|
|
if (!localblock) {
|
|
/* Deal with end_sys_ vars */
|
|
was_end = false;
|
|
if (!strcmp(var->name, "end_sys_globals")) {
|
|
var->uses++;
|
|
parser->crc_globals = vec_size(parser->globals);
|
|
was_end = true;
|
|
}
|
|
else if (!strcmp(var->name, "end_sys_fields")) {
|
|
var->uses++;
|
|
parser->crc_fields = vec_size(parser->fields);
|
|
was_end = true;
|
|
}
|
|
if (was_end && var->expression.vtype == TYPE_FIELD) {
|
|
if (parsewarning(parser, WARN_END_SYS_FIELDS,
|
|
"global '%s' hint should not be a field",
|
|
parser_tokval(parser)))
|
|
{
|
|
retval = false;
|
|
goto cleanup;
|
|
}
|
|
}
|
|
|
|
if (!nofields && var->expression.vtype == TYPE_FIELD)
|
|
{
|
|
/* deal with field declarations */
|
|
old = parser_find_field(parser, var->name);
|
|
if (old) {
|
|
if (parsewarning(parser, WARN_FIELD_REDECLARED, "field `%s` already declared here: %s:%i",
|
|
var->name, ast_ctx(old).file, (int)ast_ctx(old).line))
|
|
{
|
|
retval = false;
|
|
goto cleanup;
|
|
}
|
|
ast_delete(var);
|
|
var = NULL;
|
|
goto skipvar;
|
|
/*
|
|
parseerror(parser, "field `%s` already declared here: %s:%i",
|
|
var->name, ast_ctx(old).file, ast_ctx(old).line);
|
|
retval = false;
|
|
goto cleanup;
|
|
*/
|
|
}
|
|
if ((OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC || OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_FTEQCC) &&
|
|
(old = parser_find_global(parser, var->name)))
|
|
{
|
|
parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
|
|
parseerror(parser, "field `%s` already declared here: %s:%i",
|
|
var->name, ast_ctx(old).file, ast_ctx(old).line);
|
|
retval = false;
|
|
goto cleanup;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* deal with other globals */
|
|
old = parser_find_global(parser, var->name);
|
|
if (old && var->expression.vtype == TYPE_FUNCTION && old->vtype == TYPE_FUNCTION)
|
|
{
|
|
/* This is a function which had a prototype */
|
|
if (!ast_istype(old, ast_value)) {
|
|
parseerror(parser, "internal error: prototype is not an ast_value");
|
|
retval = false;
|
|
goto cleanup;
|
|
}
|
|
proto = (ast_value*)old;
|
|
proto->desc = var->desc;
|
|
if (!ast_compare_type((ast_expression*)proto, (ast_expression*)var)) {
|
|
parseerror(parser, "conflicting types for `%s`, previous declaration was here: %s:%i",
|
|
proto->name,
|
|
ast_ctx(proto).file, ast_ctx(proto).line);
|
|
retval = false;
|
|
goto cleanup;
|
|
}
|
|
/* we need the new parameter-names */
|
|
for (i = 0; i < vec_size(proto->expression.params); ++i)
|
|
ast_value_set_name(proto->expression.params[i], var->expression.params[i]->name);
|
|
if (!parser_check_qualifiers(parser, var, proto)) {
|
|
retval = false;
|
|
if (proto->desc)
|
|
mem_d(proto->desc);
|
|
proto = NULL;
|
|
goto cleanup;
|
|
}
|
|
proto->expression.flags |= var->expression.flags;
|
|
ast_delete(var);
|
|
var = proto;
|
|
}
|
|
else
|
|
{
|
|
/* other globals */
|
|
if (old) {
|
|
if (parsewarning(parser, WARN_DOUBLE_DECLARATION,
|
|
"global `%s` already declared here: %s:%i",
|
|
var->name, ast_ctx(old).file, ast_ctx(old).line))
|
|
{
|
|
retval = false;
|
|
goto cleanup;
|
|
}
|
|
proto = (ast_value*)old;
|
|
if (!ast_istype(old, ast_value)) {
|
|
parseerror(parser, "internal error: not an ast_value");
|
|
retval = false;
|
|
proto = NULL;
|
|
goto cleanup;
|
|
}
|
|
if (!parser_check_qualifiers(parser, var, proto)) {
|
|
retval = false;
|
|
proto = NULL;
|
|
goto cleanup;
|
|
}
|
|
proto->expression.flags |= var->expression.flags;
|
|
ast_delete(var);
|
|
var = proto;
|
|
}
|
|
if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC &&
|
|
(old = parser_find_field(parser, var->name)))
|
|
{
|
|
parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
|
|
parseerror(parser, "global `%s` already declared here: %s:%i",
|
|
var->name, ast_ctx(old).file, ast_ctx(old).line);
|
|
retval = false;
|
|
goto cleanup;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else /* it's not a global */
|
|
{
|
|
old = parser_find_local(parser, var->name, vec_size(parser->variables)-1, &isparam);
|
|
if (old && !isparam) {
|
|
parseerror(parser, "local `%s` already declared here: %s:%i",
|
|
var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
|
|
retval = false;
|
|
goto cleanup;
|
|
}
|
|
old = parser_find_local(parser, var->name, 0, &isparam);
|
|
if (old && isparam) {
|
|
if (parsewarning(parser, WARN_LOCAL_SHADOWS,
|
|
"local `%s` is shadowing a parameter", var->name))
|
|
{
|
|
parseerror(parser, "local `%s` already declared here: %s:%i",
|
|
var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
|
|
retval = false;
|
|
goto cleanup;
|
|
}
|
|
if (OPTS_OPTION_U32(OPTION_STANDARD) != COMPILER_GMQCC) {
|
|
ast_delete(var);
|
|
var = NULL;
|
|
goto skipvar;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* in a noref section we simply bump the usecount */
|
|
if (noref || parser->noref)
|
|
var->uses++;
|
|
|
|
/* Part 2:
|
|
* Create the global/local, and deal with vector types.
|
|
*/
|
|
if (!proto) {
|
|
if (var->expression.vtype == TYPE_VECTOR)
|
|
isvector = true;
|
|
else if (var->expression.vtype == TYPE_FIELD &&
|
|
var->expression.next->vtype == TYPE_VECTOR)
|
|
isvector = true;
|
|
|
|
if (isvector) {
|
|
if (!create_vector_members(var, me)) {
|
|
retval = false;
|
|
goto cleanup;
|
|
}
|
|
}
|
|
|
|
if (!localblock) {
|
|
/* deal with global variables, fields, functions */
|
|
if (!nofields && var->expression.vtype == TYPE_FIELD && parser->tok != '=') {
|
|
var->isfield = true;
|
|
vec_push(parser->fields, (ast_expression*)var);
|
|
util_htset(parser->htfields, var->name, var);
|
|
if (isvector) {
|
|
for (i = 0; i < 3; ++i) {
|
|
vec_push(parser->fields, (ast_expression*)me[i]);
|
|
util_htset(parser->htfields, me[i]->name, me[i]);
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
if (!(var->expression.flags & AST_FLAG_ALIAS)) {
|
|
parser_addglobal(parser, var->name, (ast_expression*)var);
|
|
if (isvector) {
|
|
for (i = 0; i < 3; ++i) {
|
|
parser_addglobal(parser, me[i]->name, (ast_expression*)me[i]);
|
|
}
|
|
}
|
|
} else {
|
|
ast_expression *find = parser_find_global(parser, var->desc);
|
|
|
|
if (!find) {
|
|
compile_error(parser_ctx(parser), "undeclared variable `%s` for alias `%s`", var->desc, var->name);
|
|
return false;
|
|
}
|
|
|
|
if (var->expression.vtype != find->vtype) {
|
|
char ty1[1024];
|
|
char ty2[1024];
|
|
|
|
ast_type_to_string(find, ty1, sizeof(ty1));
|
|
ast_type_to_string((ast_expression*)var, ty2, sizeof(ty2));
|
|
|
|
compile_error(parser_ctx(parser), "incompatible types `%s` and `%s` for alias `%s`",
|
|
ty1, ty2, var->name
|
|
);
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* add alias to aliases table and to corrector
|
|
* so corrections can apply for aliases as well.
|
|
*/
|
|
util_htset(parser->aliases, var->name, find);
|
|
|
|
/*
|
|
* add to corrector so corrections can work
|
|
* even for aliases too.
|
|
*/
|
|
correct_add (
|
|
vec_last(parser->correct_variables),
|
|
&vec_last(parser->correct_variables_score),
|
|
var->name
|
|
);
|
|
|
|
/* generate aliases for vector components */
|
|
if (isvector) {
|
|
char *buffer[3];
|
|
|
|
util_asprintf(&buffer[0], "%s_x", var->desc);
|
|
util_asprintf(&buffer[1], "%s_y", var->desc);
|
|
util_asprintf(&buffer[2], "%s_z", var->desc);
|
|
|
|
util_htset(parser->aliases, me[0]->name, parser_find_global(parser, buffer[0]));
|
|
util_htset(parser->aliases, me[1]->name, parser_find_global(parser, buffer[1]));
|
|
util_htset(parser->aliases, me[2]->name, parser_find_global(parser, buffer[2]));
|
|
|
|
mem_d(buffer[0]);
|
|
mem_d(buffer[1]);
|
|
mem_d(buffer[2]);
|
|
|
|
/*
|
|
* add to corrector so corrections can work
|
|
* even for aliases too.
|
|
*/
|
|
correct_add (
|
|
vec_last(parser->correct_variables),
|
|
&vec_last(parser->correct_variables_score),
|
|
me[0]->name
|
|
);
|
|
correct_add (
|
|
vec_last(parser->correct_variables),
|
|
&vec_last(parser->correct_variables_score),
|
|
me[1]->name
|
|
);
|
|
correct_add (
|
|
vec_last(parser->correct_variables),
|
|
&vec_last(parser->correct_variables_score),
|
|
me[2]->name
|
|
);
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
if (is_static) {
|
|
/* a static adds itself to be generated like any other global
|
|
* but is added to the local namespace instead
|
|
*/
|
|
char *defname = NULL;
|
|
size_t prefix_len, ln;
|
|
|
|
ln = strlen(parser->function->name);
|
|
vec_append(defname, ln, parser->function->name);
|
|
|
|
vec_append(defname, 2, "::");
|
|
/* remember the length up to here */
|
|
prefix_len = vec_size(defname);
|
|
|
|
/* Add it to the local scope */
|
|
util_htset(vec_last(parser->variables), var->name, (void*)var);
|
|
|
|
/* corrector */
|
|
correct_add (
|
|
vec_last(parser->correct_variables),
|
|
&vec_last(parser->correct_variables_score),
|
|
var->name
|
|
);
|
|
|
|
/* now rename the global */
|
|
ln = strlen(var->name);
|
|
vec_append(defname, ln, var->name);
|
|
ast_value_set_name(var, defname);
|
|
|
|
/* push it to the to-be-generated globals */
|
|
vec_push(parser->globals, (ast_expression*)var);
|
|
|
|
/* same game for the vector members */
|
|
if (isvector) {
|
|
for (i = 0; i < 3; ++i) {
|
|
util_htset(vec_last(parser->variables), me[i]->name, (void*)(me[i]));
|
|
|
|
/* corrector */
|
|
correct_add(
|
|
vec_last(parser->correct_variables),
|
|
&vec_last(parser->correct_variables_score),
|
|
me[i]->name
|
|
);
|
|
|
|
vec_shrinkto(defname, prefix_len);
|
|
ln = strlen(me[i]->name);
|
|
vec_append(defname, ln, me[i]->name);
|
|
ast_member_set_name(me[i], defname);
|
|
|
|
vec_push(parser->globals, (ast_expression*)me[i]);
|
|
}
|
|
}
|
|
vec_free(defname);
|
|
} else {
|
|
vec_push(localblock->locals, var);
|
|
parser_addlocal(parser, var->name, (ast_expression*)var);
|
|
if (isvector) {
|
|
for (i = 0; i < 3; ++i) {
|
|
parser_addlocal(parser, me[i]->name, (ast_expression*)me[i]);
|
|
ast_block_collect(localblock, (ast_expression*)me[i]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
me[0] = me[1] = me[2] = NULL;
|
|
cleanvar = false;
|
|
/* Part 2.2
|
|
* deal with arrays
|
|
*/
|
|
if (var->expression.vtype == TYPE_ARRAY) {
|
|
if (var->expression.count != (size_t)-1) {
|
|
if (!create_array_accessors(parser, var))
|
|
goto cleanup;
|
|
}
|
|
}
|
|
else if (!localblock && !nofields &&
|
|
var->expression.vtype == TYPE_FIELD &&
|
|
var->expression.next->vtype == TYPE_ARRAY)
|
|
{
|
|
char name[1024];
|
|
ast_expression *telem;
|
|
ast_value *tfield;
|
|
ast_value *array = (ast_value*)var->expression.next;
|
|
|
|
if (!ast_istype(var->expression.next, ast_value)) {
|
|
parseerror(parser, "internal error: field element type must be an ast_value");
|
|
goto cleanup;
|
|
}
|
|
|
|
util_snprintf(name, sizeof(name), "%s##SETF", var->name);
|
|
if (!parser_create_array_field_setter(parser, array, name))
|
|
goto cleanup;
|
|
|
|
telem = ast_type_copy(ast_ctx(var), array->expression.next);
|
|
tfield = ast_value_new(ast_ctx(var), "<.type>", TYPE_FIELD);
|
|
tfield->expression.next = telem;
|
|
util_snprintf(name, sizeof(name), "%s##GETFP", var->name);
|
|
if (!parser_create_array_getter(parser, array, (ast_expression*)tfield, name)) {
|
|
ast_delete(tfield);
|
|
goto cleanup;
|
|
}
|
|
ast_delete(tfield);
|
|
}
|
|
|
|
skipvar:
|
|
if (parser->tok == ';') {
|
|
ast_delete(basetype);
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "error after variable declaration");
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
if (parser->tok == ',')
|
|
goto another;
|
|
|
|
/*
|
|
if (!var || (!localblock && !nofields && basetype->expression.vtype == TYPE_FIELD)) {
|
|
*/
|
|
if (!var) {
|
|
parseerror(parser, "missing comma or semicolon while parsing variables");
|
|
break;
|
|
}
|
|
|
|
if (localblock && OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
|
|
if (parsewarning(parser, WARN_LOCAL_CONSTANTS,
|
|
"initializing expression turns variable `%s` into a constant in this standard",
|
|
var->name) )
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (parser->tok != '{' || var->expression.vtype != TYPE_FUNCTION) {
|
|
if (parser->tok != '=') {
|
|
parseerror(parser, "missing semicolon or initializer, got: `%s`", parser_tokval(parser));
|
|
break;
|
|
}
|
|
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "error parsing initializer");
|
|
break;
|
|
}
|
|
}
|
|
else if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
|
|
parseerror(parser, "expected '=' before function body in this standard");
|
|
}
|
|
|
|
if (parser->tok == '#') {
|
|
ast_function *func = NULL;
|
|
ast_value *number = NULL;
|
|
float fractional;
|
|
float integral;
|
|
int builtin_num;
|
|
|
|
if (localblock) {
|
|
parseerror(parser, "cannot declare builtins within functions");
|
|
break;
|
|
}
|
|
if (var->expression.vtype != TYPE_FUNCTION) {
|
|
parseerror(parser, "unexpected builtin number, '%s' is not a function", var->name);
|
|
break;
|
|
}
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected builtin number");
|
|
break;
|
|
}
|
|
|
|
if (OPTS_FLAG(EXPRESSIONS_FOR_BUILTINS)) {
|
|
number = (ast_value*)parse_expression_leave(parser, true, false, false);
|
|
if (!number) {
|
|
parseerror(parser, "builtin number expected");
|
|
break;
|
|
}
|
|
if (!ast_istype(number, ast_value) || !number->hasvalue || number->cvq != CV_CONST)
|
|
{
|
|
ast_unref(number);
|
|
parseerror(parser, "builtin number must be a compile time constant");
|
|
break;
|
|
}
|
|
if (number->expression.vtype == TYPE_INTEGER)
|
|
builtin_num = number->constval.vint;
|
|
else if (number->expression.vtype == TYPE_FLOAT)
|
|
builtin_num = number->constval.vfloat;
|
|
else {
|
|
ast_unref(number);
|
|
parseerror(parser, "builtin number must be an integer constant");
|
|
break;
|
|
}
|
|
ast_unref(number);
|
|
|
|
fractional = modff(builtin_num, &integral);
|
|
if (builtin_num < 0 || fractional != 0) {
|
|
parseerror(parser, "builtin number must be an integer greater than zero");
|
|
break;
|
|
}
|
|
|
|
/* we only want the integral part anyways */
|
|
builtin_num = integral;
|
|
} else if (parser->tok == TOKEN_INTCONST) {
|
|
builtin_num = parser_token(parser)->constval.i;
|
|
} else {
|
|
parseerror(parser, "builtin number must be a compile time constant");
|
|
break;
|
|
}
|
|
|
|
if (var->hasvalue) {
|
|
(void)!parsewarning(parser, WARN_DOUBLE_DECLARATION,
|
|
"builtin `%s` has already been defined\n"
|
|
" -> previous declaration here: %s:%i",
|
|
var->name, ast_ctx(var).file, (int)ast_ctx(var).line);
|
|
}
|
|
else
|
|
{
|
|
func = ast_function_new(ast_ctx(var), var->name, var);
|
|
if (!func) {
|
|
parseerror(parser, "failed to allocate function for `%s`", var->name);
|
|
break;
|
|
}
|
|
vec_push(parser->functions, func);
|
|
|
|
func->builtin = -builtin_num-1;
|
|
}
|
|
|
|
if (OPTS_FLAG(EXPRESSIONS_FOR_BUILTINS)
|
|
? (parser->tok != ',' && parser->tok != ';')
|
|
: (!parser_next(parser)))
|
|
{
|
|
parseerror(parser, "expected comma or semicolon");
|
|
if (func)
|
|
ast_function_delete(func);
|
|
var->constval.vfunc = NULL;
|
|
break;
|
|
}
|
|
}
|
|
else if (var->expression.vtype == TYPE_ARRAY && parser->tok == '{')
|
|
{
|
|
if (localblock) {
|
|
/* Note that fteqcc and most others don't even *have*
|
|
* local arrays, so this is not a high priority.
|
|
*/
|
|
parseerror(parser, "TODO: initializers for local arrays");
|
|
break;
|
|
}
|
|
|
|
var->hasvalue = true;
|
|
if (!parse_array(parser, var))
|
|
break;
|
|
}
|
|
else if (var->expression.vtype == TYPE_FUNCTION && (parser->tok == '{' || parser->tok == '['))
|
|
{
|
|
if (localblock) {
|
|
parseerror(parser, "cannot declare functions within functions");
|
|
break;
|
|
}
|
|
|
|
if (proto)
|
|
ast_ctx(proto) = parser_ctx(parser);
|
|
|
|
if (!parse_function_body(parser, var))
|
|
break;
|
|
ast_delete(basetype);
|
|
for (i = 0; i < vec_size(parser->gotos); ++i)
|
|
parseerror(parser, "undefined label: `%s`", parser->gotos[i]->name);
|
|
vec_free(parser->gotos);
|
|
vec_free(parser->labels);
|
|
return true;
|
|
} else {
|
|
ast_expression *cexp;
|
|
ast_value *cval;
|
|
|
|
cexp = parse_expression_leave(parser, true, false, false);
|
|
if (!cexp)
|
|
break;
|
|
|
|
if (!localblock) {
|
|
cval = (ast_value*)cexp;
|
|
if (cval != parser->nil &&
|
|
(!ast_istype(cval, ast_value) || ((!cval->hasvalue || cval->cvq != CV_CONST) && !cval->isfield))
|
|
)
|
|
{
|
|
parseerror(parser, "cannot initialize a global constant variable with a non-constant expression");
|
|
}
|
|
else
|
|
{
|
|
if (!OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
|
|
qualifier != CV_VAR)
|
|
{
|
|
var->cvq = CV_CONST;
|
|
}
|
|
if (cval == parser->nil)
|
|
var->expression.flags |= AST_FLAG_INITIALIZED;
|
|
else
|
|
{
|
|
var->hasvalue = true;
|
|
if (cval->expression.vtype == TYPE_STRING)
|
|
var->constval.vstring = parser_strdup(cval->constval.vstring);
|
|
else if (cval->expression.vtype == TYPE_FIELD)
|
|
var->constval.vfield = cval;
|
|
else
|
|
memcpy(&var->constval, &cval->constval, sizeof(var->constval));
|
|
ast_unref(cval);
|
|
}
|
|
}
|
|
} else {
|
|
int cvq;
|
|
shunt sy = { NULL, NULL, NULL, NULL };
|
|
cvq = var->cvq;
|
|
var->cvq = CV_NONE;
|
|
vec_push(sy.out, syexp(ast_ctx(var), (ast_expression*)var));
|
|
vec_push(sy.out, syexp(ast_ctx(cexp), (ast_expression*)cexp));
|
|
vec_push(sy.ops, syop(ast_ctx(var), parser->assign_op));
|
|
if (!parser_sy_apply_operator(parser, &sy))
|
|
ast_unref(cexp);
|
|
else {
|
|
if (vec_size(sy.out) != 1 && vec_size(sy.ops) != 0)
|
|
parseerror(parser, "internal error: leaked operands");
|
|
if (!ast_block_add_expr(localblock, (ast_expression*)sy.out[0].out))
|
|
break;
|
|
}
|
|
vec_free(sy.out);
|
|
vec_free(sy.ops);
|
|
vec_free(sy.argc);
|
|
var->cvq = cvq;
|
|
}
|
|
}
|
|
|
|
another:
|
|
if (parser->tok == ',') {
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected another variable");
|
|
break;
|
|
}
|
|
|
|
if (parser->tok != TOKEN_IDENT) {
|
|
parseerror(parser, "expected another variable");
|
|
break;
|
|
}
|
|
var = ast_value_copy(basetype);
|
|
cleanvar = true;
|
|
ast_value_set_name(var, parser_tokval(parser));
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "error parsing variable declaration");
|
|
break;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (parser->tok != ';') {
|
|
parseerror(parser, "missing semicolon after variables");
|
|
break;
|
|
}
|
|
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "parse error after variable declaration");
|
|
break;
|
|
}
|
|
|
|
ast_delete(basetype);
|
|
return true;
|
|
}
|
|
|
|
if (cleanvar && var)
|
|
ast_delete(var);
|
|
ast_delete(basetype);
|
|
return false;
|
|
|
|
cleanup:
|
|
ast_delete(basetype);
|
|
if (cleanvar && var)
|
|
ast_delete(var);
|
|
if (me[0]) ast_member_delete(me[0]);
|
|
if (me[1]) ast_member_delete(me[1]);
|
|
if (me[2]) ast_member_delete(me[2]);
|
|
return retval;
|
|
}
|
|
|
|
static bool parser_global_statement(parser_t *parser)
|
|
{
|
|
int cvq = CV_WRONG;
|
|
bool noref = false;
|
|
bool is_static = false;
|
|
uint32_t qflags = 0;
|
|
ast_value *istype = NULL;
|
|
char *vstring = NULL;
|
|
|
|
if (parser->tok == TOKEN_IDENT)
|
|
istype = parser_find_typedef(parser, parser_tokval(parser), 0);
|
|
|
|
if (istype || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
|
|
{
|
|
return parse_variable(parser, NULL, false, CV_NONE, istype, false, false, 0, NULL);
|
|
}
|
|
else if (parse_qualifiers(parser, false, &cvq, &noref, &is_static, &qflags, &vstring))
|
|
{
|
|
if (cvq == CV_WRONG)
|
|
return false;
|
|
return parse_variable(parser, NULL, true, cvq, NULL, noref, is_static, qflags, vstring);
|
|
}
|
|
else if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "enum"))
|
|
{
|
|
return parse_enum(parser);
|
|
}
|
|
else if (parser->tok == TOKEN_KEYWORD)
|
|
{
|
|
if (!strcmp(parser_tokval(parser), "typedef")) {
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "expected type definition after 'typedef'");
|
|
return false;
|
|
}
|
|
return parse_typedef(parser);
|
|
}
|
|
parseerror(parser, "unrecognized keyword `%s`", parser_tokval(parser));
|
|
return false;
|
|
}
|
|
else if (parser->tok == '#')
|
|
{
|
|
return parse_pragma(parser);
|
|
}
|
|
else if (parser->tok == '$')
|
|
{
|
|
if (!parser_next(parser)) {
|
|
parseerror(parser, "parse error");
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
parseerror(parser, "unexpected token: `%s`", parser->lex->tok.value);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static uint16_t progdefs_crc_sum(uint16_t old, const char *str)
|
|
{
|
|
return util_crc16(old, str, strlen(str));
|
|
}
|
|
|
|
static void progdefs_crc_file(const char *str)
|
|
{
|
|
/* write to progdefs.h here */
|
|
(void)str;
|
|
}
|
|
|
|
static uint16_t progdefs_crc_both(uint16_t old, const char *str)
|
|
{
|
|
old = progdefs_crc_sum(old, str);
|
|
progdefs_crc_file(str);
|
|
return old;
|
|
}
|
|
|
|
static void generate_checksum(parser_t *parser)
|
|
{
|
|
uint16_t crc = 0xFFFF;
|
|
size_t i;
|
|
ast_value *value;
|
|
|
|
crc = progdefs_crc_both(crc, "\n/* file generated by qcc, do not modify */\n\ntypedef struct\n{");
|
|
crc = progdefs_crc_sum(crc, "\tint\tpad[28];\n");
|
|
/*
|
|
progdefs_crc_file("\tint\tpad;\n");
|
|
progdefs_crc_file("\tint\tofs_return[3];\n");
|
|
progdefs_crc_file("\tint\tofs_parm0[3];\n");
|
|
progdefs_crc_file("\tint\tofs_parm1[3];\n");
|
|
progdefs_crc_file("\tint\tofs_parm2[3];\n");
|
|
progdefs_crc_file("\tint\tofs_parm3[3];\n");
|
|
progdefs_crc_file("\tint\tofs_parm4[3];\n");
|
|
progdefs_crc_file("\tint\tofs_parm5[3];\n");
|
|
progdefs_crc_file("\tint\tofs_parm6[3];\n");
|
|
progdefs_crc_file("\tint\tofs_parm7[3];\n");
|
|
*/
|
|
for (i = 0; i < parser->crc_globals; ++i) {
|
|
if (!ast_istype(parser->globals[i], ast_value))
|
|
continue;
|
|
value = (ast_value*)(parser->globals[i]);
|
|
switch (value->expression.vtype) {
|
|
case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
|
|
case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
|
|
case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
|
|
case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
|
|
default:
|
|
crc = progdefs_crc_both(crc, "\tint\t");
|
|
break;
|
|
}
|
|
crc = progdefs_crc_both(crc, value->name);
|
|
crc = progdefs_crc_both(crc, ";\n");
|
|
}
|
|
crc = progdefs_crc_both(crc, "} globalvars_t;\n\ntypedef struct\n{\n");
|
|
for (i = 0; i < parser->crc_fields; ++i) {
|
|
if (!ast_istype(parser->fields[i], ast_value))
|
|
continue;
|
|
value = (ast_value*)(parser->fields[i]);
|
|
switch (value->expression.next->vtype) {
|
|
case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
|
|
case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
|
|
case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
|
|
case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
|
|
default:
|
|
crc = progdefs_crc_both(crc, "\tint\t");
|
|
break;
|
|
}
|
|
crc = progdefs_crc_both(crc, value->name);
|
|
crc = progdefs_crc_both(crc, ";\n");
|
|
}
|
|
crc = progdefs_crc_both(crc, "} entvars_t;\n\n");
|
|
|
|
parser->code->crc = crc;
|
|
}
|
|
|
|
parser_t *parser_create()
|
|
{
|
|
parser_t *parser;
|
|
lex_ctx empty_ctx;
|
|
size_t i;
|
|
|
|
parser = (parser_t*)mem_a(sizeof(parser_t));
|
|
if (!parser)
|
|
return NULL;
|
|
|
|
memset(parser, 0, sizeof(*parser));
|
|
|
|
if (!(parser->code = code_init())) {
|
|
mem_d(parser);
|
|
return NULL;
|
|
}
|
|
|
|
for (i = 0; i < operator_count; ++i) {
|
|
if (operators[i].id == opid1('=')) {
|
|
parser->assign_op = operators+i;
|
|
break;
|
|
}
|
|
}
|
|
if (!parser->assign_op) {
|
|
printf("internal error: initializing parser: failed to find assign operator\n");
|
|
mem_d(parser);
|
|
return NULL;
|
|
}
|
|
|
|
vec_push(parser->variables, parser->htfields = util_htnew(PARSER_HT_SIZE));
|
|
vec_push(parser->variables, parser->htglobals = util_htnew(PARSER_HT_SIZE));
|
|
vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
|
|
vec_push(parser->_blocktypedefs, 0);
|
|
|
|
parser->aliases = util_htnew(PARSER_HT_SIZE);
|
|
|
|
parser->ht_imm_string = util_htnew(512);
|
|
|
|
/* corrector */
|
|
vec_push(parser->correct_variables, correct_trie_new());
|
|
vec_push(parser->correct_variables_score, NULL);
|
|
|
|
empty_ctx.file = "<internal>";
|
|
empty_ctx.line = 0;
|
|
parser->nil = ast_value_new(empty_ctx, "nil", TYPE_NIL);
|
|
parser->nil->cvq = CV_CONST;
|
|
if (OPTS_FLAG(UNTYPED_NIL))
|
|
util_htset(parser->htglobals, "nil", (void*)parser->nil);
|
|
|
|
parser->max_param_count = 1;
|
|
|
|
parser->const_vec[0] = ast_value_new(empty_ctx, "<vector.x>", TYPE_NOEXPR);
|
|
parser->const_vec[1] = ast_value_new(empty_ctx, "<vector.y>", TYPE_NOEXPR);
|
|
parser->const_vec[2] = ast_value_new(empty_ctx, "<vector.z>", TYPE_NOEXPR);
|
|
|
|
if (OPTS_OPTION_BOOL(OPTION_ADD_INFO)) {
|
|
parser->reserved_version = ast_value_new(empty_ctx, "reserved:version", TYPE_STRING);
|
|
parser->reserved_version->cvq = CV_CONST;
|
|
parser->reserved_version->hasvalue = true;
|
|
parser->reserved_version->expression.flags |= AST_FLAG_INCLUDE_DEF;
|
|
parser->reserved_version->constval.vstring = util_strdup(GMQCC_FULL_VERSION_STRING);
|
|
} else {
|
|
parser->reserved_version = NULL;
|
|
}
|
|
|
|
return parser;
|
|
}
|
|
|
|
static bool parser_compile(parser_t *parser)
|
|
{
|
|
/* initial lexer/parser state */
|
|
parser->lex->flags.noops = true;
|
|
|
|
if (parser_next(parser))
|
|
{
|
|
while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
|
|
{
|
|
if (!parser_global_statement(parser)) {
|
|
if (parser->tok == TOKEN_EOF)
|
|
parseerror(parser, "unexpected eof");
|
|
else if (compile_errors)
|
|
parseerror(parser, "there have been errors, bailing out");
|
|
lex_close(parser->lex);
|
|
parser->lex = NULL;
|
|
return false;
|
|
}
|
|
}
|
|
} else {
|
|
parseerror(parser, "parse error");
|
|
lex_close(parser->lex);
|
|
parser->lex = NULL;
|
|
return false;
|
|
}
|
|
|
|
lex_close(parser->lex);
|
|
parser->lex = NULL;
|
|
|
|
return !compile_errors;
|
|
}
|
|
|
|
bool parser_compile_file(parser_t *parser, const char *filename)
|
|
{
|
|
parser->lex = lex_open(filename);
|
|
if (!parser->lex) {
|
|
con_err("failed to open file \"%s\"\n", filename);
|
|
return false;
|
|
}
|
|
return parser_compile(parser);
|
|
}
|
|
|
|
bool parser_compile_string(parser_t *parser, const char *name, const char *str, size_t len)
|
|
{
|
|
parser->lex = lex_open_string(str, len, name);
|
|
if (!parser->lex) {
|
|
con_err("failed to create lexer for string \"%s\"\n", name);
|
|
return false;
|
|
}
|
|
return parser_compile(parser);
|
|
}
|
|
|
|
static void parser_remove_ast(parser_t *parser)
|
|
{
|
|
size_t i;
|
|
if (parser->ast_cleaned)
|
|
return;
|
|
parser->ast_cleaned = true;
|
|
for (i = 0; i < vec_size(parser->accessors); ++i) {
|
|
ast_delete(parser->accessors[i]->constval.vfunc);
|
|
parser->accessors[i]->constval.vfunc = NULL;
|
|
ast_delete(parser->accessors[i]);
|
|
}
|
|
for (i = 0; i < vec_size(parser->functions); ++i) {
|
|
ast_delete(parser->functions[i]);
|
|
}
|
|
for (i = 0; i < vec_size(parser->imm_vector); ++i) {
|
|
ast_delete(parser->imm_vector[i]);
|
|
}
|
|
for (i = 0; i < vec_size(parser->imm_string); ++i) {
|
|
ast_delete(parser->imm_string[i]);
|
|
}
|
|
for (i = 0; i < vec_size(parser->imm_float); ++i) {
|
|
ast_delete(parser->imm_float[i]);
|
|
}
|
|
for (i = 0; i < vec_size(parser->fields); ++i) {
|
|
ast_delete(parser->fields[i]);
|
|
}
|
|
for (i = 0; i < vec_size(parser->globals); ++i) {
|
|
ast_delete(parser->globals[i]);
|
|
}
|
|
vec_free(parser->accessors);
|
|
vec_free(parser->functions);
|
|
vec_free(parser->imm_vector);
|
|
vec_free(parser->imm_string);
|
|
util_htdel(parser->ht_imm_string);
|
|
vec_free(parser->imm_float);
|
|
vec_free(parser->globals);
|
|
vec_free(parser->fields);
|
|
|
|
for (i = 0; i < vec_size(parser->variables); ++i)
|
|
util_htdel(parser->variables[i]);
|
|
vec_free(parser->variables);
|
|
vec_free(parser->_blocklocals);
|
|
vec_free(parser->_locals);
|
|
|
|
/* corrector */
|
|
for (i = 0; i < vec_size(parser->correct_variables); ++i) {
|
|
correct_del(parser->correct_variables[i], parser->correct_variables_score[i]);
|
|
}
|
|
vec_free(parser->correct_variables);
|
|
vec_free(parser->correct_variables_score);
|
|
|
|
|
|
for (i = 0; i < vec_size(parser->_typedefs); ++i)
|
|
ast_delete(parser->_typedefs[i]);
|
|
vec_free(parser->_typedefs);
|
|
for (i = 0; i < vec_size(parser->typedefs); ++i)
|
|
util_htdel(parser->typedefs[i]);
|
|
vec_free(parser->typedefs);
|
|
vec_free(parser->_blocktypedefs);
|
|
|
|
vec_free(parser->_block_ctx);
|
|
|
|
vec_free(parser->labels);
|
|
vec_free(parser->gotos);
|
|
vec_free(parser->breaks);
|
|
vec_free(parser->continues);
|
|
|
|
ast_value_delete(parser->nil);
|
|
|
|
ast_value_delete(parser->const_vec[0]);
|
|
ast_value_delete(parser->const_vec[1]);
|
|
ast_value_delete(parser->const_vec[2]);
|
|
|
|
util_htdel(parser->aliases);
|
|
intrin_intrinsics_destroy(parser);
|
|
}
|
|
|
|
void parser_cleanup(parser_t *parser)
|
|
{
|
|
parser_remove_ast(parser);
|
|
code_cleanup(parser->code);
|
|
|
|
mem_d(parser);
|
|
}
|
|
|
|
bool parser_finish(parser_t *parser, const char *output)
|
|
{
|
|
size_t i;
|
|
ir_builder *ir;
|
|
bool retval = true;
|
|
|
|
if (compile_errors) {
|
|
con_out("*** there were compile errors\n");
|
|
return false;
|
|
}
|
|
|
|
ir = ir_builder_new("gmqcc_out");
|
|
if (!ir) {
|
|
con_out("failed to allocate builder\n");
|
|
return false;
|
|
}
|
|
|
|
for (i = 0; i < vec_size(parser->fields); ++i) {
|
|
ast_value *field;
|
|
bool hasvalue;
|
|
if (!ast_istype(parser->fields[i], ast_value))
|
|
continue;
|
|
field = (ast_value*)parser->fields[i];
|
|
hasvalue = field->hasvalue;
|
|
field->hasvalue = false;
|
|
if (!ast_global_codegen((ast_value*)field, ir, true)) {
|
|
con_out("failed to generate field %s\n", field->name);
|
|
ir_builder_delete(ir);
|
|
return false;
|
|
}
|
|
if (hasvalue) {
|
|
ir_value *ifld;
|
|
ast_expression *subtype;
|
|
field->hasvalue = true;
|
|
subtype = field->expression.next;
|
|
ifld = ir_builder_create_field(ir, field->name, subtype->vtype);
|
|
if (subtype->vtype == TYPE_FIELD)
|
|
ifld->fieldtype = subtype->next->vtype;
|
|
else if (subtype->vtype == TYPE_FUNCTION)
|
|
ifld->outtype = subtype->next->vtype;
|
|
(void)!ir_value_set_field(field->ir_v, ifld);
|
|
}
|
|
}
|
|
for (i = 0; i < vec_size(parser->globals); ++i) {
|
|
ast_value *asvalue;
|
|
if (!ast_istype(parser->globals[i], ast_value))
|
|
continue;
|
|
asvalue = (ast_value*)(parser->globals[i]);
|
|
if (!asvalue->uses && !asvalue->hasvalue && asvalue->expression.vtype != TYPE_FUNCTION) {
|
|
retval = retval && !compile_warning(ast_ctx(asvalue), WARN_UNUSED_VARIABLE,
|
|
"unused global: `%s`", asvalue->name);
|
|
}
|
|
if (!ast_global_codegen(asvalue, ir, false)) {
|
|
con_out("failed to generate global %s\n", asvalue->name);
|
|
ir_builder_delete(ir);
|
|
return false;
|
|
}
|
|
}
|
|
/* Build function vararg accessor ast tree now before generating
|
|
* immediates, because the accessors may add new immediates
|
|
*/
|
|
for (i = 0; i < vec_size(parser->functions); ++i) {
|
|
ast_function *f = parser->functions[i];
|
|
if (f->varargs) {
|
|
if (parser->max_param_count > vec_size(f->vtype->expression.params)) {
|
|
f->varargs->expression.count = parser->max_param_count - vec_size(f->vtype->expression.params);
|
|
if (!parser_create_array_setter_impl(parser, f->varargs)) {
|
|
con_out("failed to generate vararg setter for %s\n", f->name);
|
|
ir_builder_delete(ir);
|
|
return false;
|
|
}
|
|
if (!parser_create_array_getter_impl(parser, f->varargs)) {
|
|
con_out("failed to generate vararg getter for %s\n", f->name);
|
|
ir_builder_delete(ir);
|
|
return false;
|
|
}
|
|
} else {
|
|
ast_delete(f->varargs);
|
|
f->varargs = NULL;
|
|
}
|
|
}
|
|
}
|
|
/* Now we can generate immediates */
|
|
for (i = 0; i < vec_size(parser->imm_float); ++i) {
|
|
if (!ast_global_codegen(parser->imm_float[i], ir, false)) {
|
|
con_out("failed to generate global %s\n", parser->imm_float[i]->name);
|
|
ir_builder_delete(ir);
|
|
return false;
|
|
}
|
|
}
|
|
for (i = 0; i < vec_size(parser->imm_string); ++i) {
|
|
if (!ast_global_codegen(parser->imm_string[i], ir, false)) {
|
|
con_out("failed to generate global %s\n", parser->imm_string[i]->name);
|
|
ir_builder_delete(ir);
|
|
return false;
|
|
}
|
|
}
|
|
for (i = 0; i < vec_size(parser->imm_vector); ++i) {
|
|
if (!ast_global_codegen(parser->imm_vector[i], ir, false)) {
|
|
con_out("failed to generate global %s\n", parser->imm_vector[i]->name);
|
|
ir_builder_delete(ir);
|
|
return false;
|
|
}
|
|
}
|
|
for (i = 0; i < vec_size(parser->globals); ++i) {
|
|
ast_value *asvalue;
|
|
if (!ast_istype(parser->globals[i], ast_value))
|
|
continue;
|
|
asvalue = (ast_value*)(parser->globals[i]);
|
|
if (!(asvalue->expression.flags & AST_FLAG_INITIALIZED))
|
|
{
|
|
if (asvalue->cvq == CV_CONST && !asvalue->hasvalue)
|
|
(void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_CONSTANT,
|
|
"uninitialized constant: `%s`",
|
|
asvalue->name);
|
|
else if ((asvalue->cvq == CV_NONE || asvalue->cvq == CV_CONST) && !asvalue->hasvalue)
|
|
(void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_GLOBAL,
|
|
"uninitialized global: `%s`",
|
|
asvalue->name);
|
|
}
|
|
if (!ast_generate_accessors(asvalue, ir)) {
|
|
ir_builder_delete(ir);
|
|
return false;
|
|
}
|
|
}
|
|
for (i = 0; i < vec_size(parser->fields); ++i) {
|
|
ast_value *asvalue;
|
|
asvalue = (ast_value*)(parser->fields[i]->next);
|
|
|
|
if (!ast_istype((ast_expression*)asvalue, ast_value))
|
|
continue;
|
|
if (asvalue->expression.vtype != TYPE_ARRAY)
|
|
continue;
|
|
if (!ast_generate_accessors(asvalue, ir)) {
|
|
ir_builder_delete(ir);
|
|
return false;
|
|
}
|
|
}
|
|
if (parser->reserved_version &&
|
|
!ast_global_codegen(parser->reserved_version, ir, false))
|
|
{
|
|
con_out("failed to generate reserved::version");
|
|
ir_builder_delete(ir);
|
|
return false;
|
|
}
|
|
for (i = 0; i < vec_size(parser->functions); ++i) {
|
|
ast_function *f = parser->functions[i];
|
|
if (!ast_function_codegen(f, ir)) {
|
|
con_out("failed to generate function %s\n", f->name);
|
|
ir_builder_delete(ir);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
generate_checksum(parser);
|
|
if (OPTS_OPTION_BOOL(OPTION_DUMP))
|
|
ir_builder_dump(ir, con_out);
|
|
for (i = 0; i < vec_size(parser->functions); ++i) {
|
|
if (!ir_function_finalize(parser->functions[i]->ir_func)) {
|
|
con_out("failed to finalize function %s\n", parser->functions[i]->name);
|
|
ir_builder_delete(ir);
|
|
return false;
|
|
}
|
|
}
|
|
parser_remove_ast(parser);
|
|
|
|
if (compile_Werrors) {
|
|
con_out("*** there were warnings treated as errors\n");
|
|
compile_show_werrors();
|
|
retval = false;
|
|
}
|
|
|
|
if (retval) {
|
|
if (OPTS_OPTION_BOOL(OPTION_DUMPFIN))
|
|
ir_builder_dump(ir, con_out);
|
|
|
|
if (!ir_builder_generate(parser->code, ir, output)) {
|
|
con_out("*** failed to generate output file\n");
|
|
ir_builder_delete(ir);
|
|
return false;
|
|
}
|
|
}
|
|
ir_builder_delete(ir);
|
|
return retval;
|
|
}
|