mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-10 23:32:09 +00:00
d1fcfd1939
keywords (quaternion integer function for break continue switch case default NIL struct enum typedef) and converts some errors to warnings (assignment to constants, insufficient function arguments, return; from non-void function, anal function `pointer' type checks)
1851 lines
39 KiB
C
1851 lines
39 KiB
C
/*
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#FILENAME#
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#DESCRIPTION#
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Copyright (C) 2001 #AUTHOR#
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Author: #AUTHOR#
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Date: #DATE#
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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static const char rcsid[] =
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"$Id$";
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#include <stdlib.h>
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#include <QF/mathlib.h>
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#include <QF/sys.h>
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#include <QF/va.h>
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#include "qfcc.h"
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#include "scope.h"
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#include "struct.h"
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#include "type.h"
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#include "qc-parse.h"
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int lineno_base;
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etype_t qc_types[] = {
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ev_void, // ex_label
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ev_void, // ex_block
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ev_void, // ex_expr
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ev_void, // ex_uexpr
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ev_void, // ex_def
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ev_void, // ex_temp
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ev_void, // ex_nil
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ev_void, // ex_name
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ev_string, // ex_string
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ev_float, // ex_float
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ev_vector, // ex_vector
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ev_entity, // ex_entity
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ev_field, // ex_field
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ev_func, // ex_func
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ev_pointer, // ex_pointer
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ev_quaternion, // ex_quaternion
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ev_integer, // ex_integer
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ev_uinteger, // ex_uinteger
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ev_short, // ex_short
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};
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type_t *types[] = {
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&type_void,
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&type_string,
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&type_float,
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&type_vector,
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&type_entity,
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&type_field,
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&type_function,
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&type_pointer,
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&type_quaternion,
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&type_integer,
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&type_uinteger,
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&type_short,
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};
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expr_type expr_types[] = {
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ex_nil, // ev_void
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ex_string, // ev_string
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ex_float, // ev_float
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ex_vector, // ev_vector
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ex_entity, // ev_entity
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ex_field, // ev_field
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ex_func, // ev_func
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ex_pointer, // ev_pointer
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ex_quaternion, // ev_quaternion
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ex_integer, // ev_integer
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ex_uinteger, // ev_uinteger
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ex_short, // ev_short
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ex_nil, // ev_struct FIXME???
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};
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void
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convert_name (expr_t *e)
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{
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if (e->type == ex_name) {
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const char *name = e->e.string_val;
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def_t *d = PR_GetDef (NULL, name, pr_scope, 0);
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expr_t *enm;
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if (d) {
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e->type = ex_def;
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e->e.def = d;
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return;
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}
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enm = get_enum (name);
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if (enm) {
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e->type = ex_integer;
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e->e.integer_val = enm->e.integer_val;
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return;
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}
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error (e, "Undeclared variable \"%s\".", name);
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}
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}
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type_t *
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get_type (expr_t *e)
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{
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convert_name (e);
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switch (e->type) {
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case ex_label:
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case ex_name:
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return 0; // something went very wrong
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case ex_nil:
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return &type_void;
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case ex_block:
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if (e->e.block.result)
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return get_type (e->e.block.result);
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return &type_void;
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case ex_expr:
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case ex_uexpr:
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return e->e.expr.type;
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case ex_def:
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return e->e.def->type;
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case ex_temp:
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return e->e.temp.type;
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case ex_pointer:
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{
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type_t new;
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memset (&new, 0, sizeof (new));
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new.type = ev_pointer;
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new.aux_type = e->e.pointer.type;
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return PR_FindType (&new);
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}
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case ex_integer:
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if (options.code.progsversion == PROG_ID_VERSION) {
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e->type = ex_float;
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e->e.float_val = e->e.integer_val;
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}
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// fall through
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case ex_string:
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case ex_float:
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case ex_vector:
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case ex_entity:
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case ex_field:
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case ex_func:
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case ex_quaternion:
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case ex_uinteger:
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case ex_short:
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return types[qc_types[e->type]];
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}
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return 0;
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}
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etype_t
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extract_type (expr_t *e)
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{
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type_t *type = get_type (e);
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if (type)
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return type->type;
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return ev_type_count;
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}
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expr_t *
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error (expr_t *e, const char *fmt, ...)
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{
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va_list args;
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string_t file = s_file;
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int line = pr_source_line;
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va_start (args, fmt);
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if (e) {
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file = e->file;
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line = e->line;
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}
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fprintf (stderr, "%s:%d: ", strings + file, line);
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vfprintf (stderr, fmt, args);
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fputs ("\n", stderr);
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va_end (args);
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pr_error_count++;
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if (e) {
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e = new_expr ();
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e->type = ex_integer;
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}
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return e;
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}
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void
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warning (expr_t *e, const char *fmt, ...)
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{
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va_list args;
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string_t file = s_file;
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int line = pr_source_line;
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if (options.warnings.promote) {
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options.warnings.promote = 0; // only want to do this once
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fprintf (stderr, "%s: warnings treated as errors\n", "qfcc");
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pr_error_count++;
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}
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va_start (args, fmt);
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if (e) {
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file = e->file;
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line = e->line;
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}
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fprintf (stderr, "%s:%d: warning: ", strings + file, line);
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vfprintf (stderr, fmt, args);
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fputs ("\n", stderr);
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va_end (args);
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}
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const char *
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get_op_string (int op)
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{
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switch (op) {
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case PAS: return ".=";
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case OR: return "||";
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case AND: return "&&";
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case EQ: return "==";
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case NE: return "!=";
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case LE: return "<=";
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case GE: return ">=";
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case LT: return "<";
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case GT: return ">";
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case '=': return "=";
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case '+': return "+";
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case '-': return "-";
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case '*': return "*";
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case '/': return "/";
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case '%': return "%";
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case '&': return "&";
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case '|': return "|";
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case '^': return "^";
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case '~': return "~";
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case '!': return "!";
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case SHL: return "<<";
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case SHR: return ">>";
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case '.': return ".";
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case 'i': return "<if>";
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case 'n': return "<ifnot>";
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case IFBE: return "<ifbe>";
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case IFB: return "<ifb>";
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case IFAE: return "<ifae>";
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case IFA: return "<ifa>";
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case 'g': return "<goto>";
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case 'r': return "<return>";
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case 'b': return "<bind>";
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case 's': return "<state>";
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case 'c': return "<call>";
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default:
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return "unknown";
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}
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}
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expr_t *
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type_mismatch (expr_t *e1, expr_t *e2, int op)
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{
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etype_t t1, t2;
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t1 = extract_type (e1);
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t2 = extract_type (e2);
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return error (e1, "type mismatch: %s %s %s",
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pr_type_name[t1], get_op_string (op), pr_type_name[t2]);
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}
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void
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check_initialized (expr_t *e)
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{
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if (options.warnings.uninited_variable) {
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if (e->type == ex_def
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&& !(e->e.def->type->type == ev_func && !e->e.def->scope)
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&& !e->e.def->initialized) {
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warning (e, "%s may be used uninitialized", e->e.def->name);
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e->e.def->initialized = 1; // only warn once
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}
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}
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}
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void
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inc_users (expr_t *e)
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{
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if (e && e->type == ex_temp)
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e->e.temp.users++;
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else if (e && e->type == ex_block)
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inc_users (e->e.block.result);
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}
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expr_t *
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new_expr (void)
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{
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expr_t *e = calloc (1, sizeof (expr_t));
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e->line = pr_source_line;
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e->file = s_file;
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return e;
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}
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static int
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num_digits (int val)
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{
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int num = 1;
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if (val < 0) {
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num++;
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val = -val;
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}
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while (val > 9) {
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val /= 10;
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num++;
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}
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return num;
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}
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const char *
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new_label_name (void)
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{
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static int label = 0;
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int lnum = ++label;
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const char *fname = current_func->def->name;
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int len = 1 + strlen (fname) + 1 + num_digits (lnum) + 1;
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char *lname = malloc (len);
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if (!lname)
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Sys_Error ("new_label_expr: Memory Allocation Failure\n");
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snprintf (lname, len, "$%s_%d", fname, lnum);
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return lname;
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}
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expr_t *
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new_label_expr (void)
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{
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expr_t *l = new_expr ();
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l->type = ex_label;
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l->e.label.name = new_label_name ();
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return l;
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}
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expr_t *
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new_block_expr (void)
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{
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expr_t *b = new_expr ();
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b->type = ex_block;
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b->e.block.head = 0;
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b->e.block.tail = &b->e.block.head;
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return b;
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}
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expr_t *
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new_binary_expr (int op, expr_t *e1, expr_t *e2)
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{
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expr_t *e = new_expr ();
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inc_users (e1);
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inc_users (e2);
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e->type = ex_expr;
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e->e.expr.op = op;
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e->e.expr.e1 = e1;
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e->e.expr.e2 = e2;
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return e;
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}
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expr_t *
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new_unary_expr (int op, expr_t *e1)
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{
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expr_t *e = new_expr ();
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inc_users (e1);
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e->type = ex_uexpr;
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e->e.expr.op = op;
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e->e.expr.e1 = e1;
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return e;
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}
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expr_t *
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new_temp_def_expr (type_t *type)
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{
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expr_t *e = new_expr ();
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e->type = ex_temp;
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e->e.temp.type = type;
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return e;
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}
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expr_t *
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new_bind_expr (expr_t *e1, expr_t *e2)
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{
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expr_t *e;
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if (!e2 || e2->type != ex_temp) {
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error (e1, "internal error");
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abort ();
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}
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e = new_expr ();
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e->type = ex_expr;
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e->e.expr.op = 'b';
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e->e.expr.e1 = e1;
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e->e.expr.e2 = e2;
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return e;
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}
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expr_t *
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new_name_expr (const char *name)
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{
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expr_t *e = new_expr ();
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e->type = ex_name;
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e->e.string_val = name;
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return e;
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}
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expr_t *
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append_expr (expr_t *block, expr_t *e)
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{
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if (block->type != ex_block)
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abort ();
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if (!e)
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return block;
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if (e->next) {
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error (e, "append_expr: expr loop detected");
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abort ();
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}
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*block->e.block.tail = e;
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block->e.block.tail = &e->next;
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return block;
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}
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void
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print_expr (expr_t *e)
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{
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printf (" ");
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if (!e) {
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printf ("(nil)");
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return;
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}
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switch (e->type) {
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case ex_label:
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printf ("%s", e->e.label.name);
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break;
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case ex_block:
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if (e->e.block.result) {
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print_expr (e->e.block.result);
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printf ("=");
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}
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printf ("{\n");
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for (e = e->e.block.head; e; e = e->next) {
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print_expr (e);
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puts ("");
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}
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printf ("}");
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break;
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case ex_expr:
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print_expr (e->e.expr.e1);
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if (e->e.expr.op == 'c') {
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expr_t *p = e->e.expr.e2;
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printf ("(");
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while (p) {
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print_expr (p);
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if (p->next)
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printf (",");
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p = p->next;
|
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}
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printf (")");
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} else if (e->e.expr.op == 'b') {
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print_expr (e->e.expr.e1);
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printf ("<-->");
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print_expr (e->e.expr.e2);
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} else {
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print_expr (e->e.expr.e2);
|
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printf (" %s", get_op_string (e->e.expr.op));
|
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}
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break;
|
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case ex_uexpr:
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print_expr (e->e.expr.e1);
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printf (" u%s", get_op_string (e->e.expr.op));
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break;
|
|
case ex_def:
|
|
if (e->e.def->name)
|
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printf ("%s", e->e.def->name);
|
|
if (e->e.def->scope) {
|
|
printf ("<%d>", e->e.def->ofs);
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|
} else {
|
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printf ("[%d]", e->e.def->ofs);
|
|
}
|
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break;
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|
case ex_temp:
|
|
printf ("(");
|
|
print_expr (e->e.temp.expr);
|
|
printf (":");
|
|
if (e->e.temp.def) {
|
|
if (e->e.temp.def->name) {
|
|
printf ("%s", e->e.temp.def->name);
|
|
} else {
|
|
printf ("<%d>", e->e.temp.def->ofs);
|
|
}
|
|
} else {
|
|
printf ("<>");
|
|
}
|
|
printf (":%s:%d)@", pr_type_name[e->e.temp.type->type],
|
|
e->e.temp.users);
|
|
break;
|
|
case ex_nil:
|
|
printf ("NULL");
|
|
break;
|
|
case ex_string:
|
|
case ex_name:
|
|
printf ("\"%s\"", e->e.string_val);
|
|
break;
|
|
case ex_float:
|
|
printf ("%g", e->e.float_val);
|
|
break;
|
|
case ex_vector:
|
|
printf ("'%g", e->e.vector_val[0]);
|
|
printf (" %g", e->e.vector_val[1]);
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|
printf (" %g'", e->e.vector_val[2]);
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|
break;
|
|
case ex_quaternion:
|
|
printf ("'%g", e->e.quaternion_val[0]);
|
|
printf (" %g", e->e.quaternion_val[1]);
|
|
printf (" %g", e->e.quaternion_val[2]);
|
|
printf (" %g'", e->e.quaternion_val[3]);
|
|
break;
|
|
case ex_pointer:
|
|
printf ("(%s)[%d]", pr_type_name[e->e.pointer.type->type],
|
|
e->e.pointer.val);
|
|
break;
|
|
case ex_entity:
|
|
case ex_field:
|
|
case ex_func:
|
|
case ex_integer:
|
|
printf ("%d", e->e.integer_val);
|
|
break;
|
|
case ex_uinteger:
|
|
printf ("%d", e->e.uinteger_val);
|
|
break;
|
|
case ex_short:
|
|
printf ("%d", e->e.short_val);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static expr_t *
|
|
do_op_string (int op, expr_t *e1, expr_t *e2)
|
|
{
|
|
int len;
|
|
char *buf;
|
|
const char *s1, *s2;
|
|
|
|
s1 = e1->e.string_val ? e1->e.string_val : "";
|
|
s2 = e2->e.string_val ? e2->e.string_val : "";
|
|
|
|
switch (op) {
|
|
case '+':
|
|
len = strlen (s1) + strlen (s2) + 1;
|
|
buf = malloc (len);
|
|
if (!buf)
|
|
Sys_Error ("do_op_string: Memory Allocation Failure\n");
|
|
strcpy (buf, s1);
|
|
strcat (buf, s2);
|
|
e1->e.string_val = buf;
|
|
break;
|
|
case LT:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = strcmp (s1, s2) < 0;
|
|
break;
|
|
case GT:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = strcmp (s1, s2) > 0;
|
|
break;
|
|
case LE:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = strcmp (s1, s2) <= 0;
|
|
break;
|
|
case GE:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = strcmp (s1, s2) >= 0;
|
|
break;
|
|
case EQ:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = strcmp (s1, s2) == 0;
|
|
break;
|
|
case NE:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = strcmp (s1, s2) != 0;
|
|
break;
|
|
default:
|
|
return error (e1, "invalid operand for string");
|
|
}
|
|
return e1;
|
|
}
|
|
|
|
static expr_t *
|
|
do_op_float (int op, expr_t *e1, expr_t *e2)
|
|
{
|
|
float f1, f2;
|
|
|
|
f1 = e1->e.float_val;
|
|
f2 = e2->e.float_val;
|
|
|
|
switch (op) {
|
|
case '+':
|
|
e1->e.float_val += f2;
|
|
break;
|
|
case '-':
|
|
e1->e.float_val -= f2;
|
|
break;
|
|
case '*':
|
|
e1->e.float_val *= f2;
|
|
break;
|
|
case '/':
|
|
e1->e.float_val /= f2;
|
|
break;
|
|
case '&':
|
|
e1->e.float_val = (int) f1 & (int) f2;
|
|
break;
|
|
case '|':
|
|
e1->e.float_val = (int) f1 | (int) f2;
|
|
break;
|
|
case '^':
|
|
e1->e.float_val = (int) f1 ^ (int) f2;
|
|
break;
|
|
case '%':
|
|
e1->e.float_val = (int) f1 % (int) f2;
|
|
break;
|
|
case SHL:
|
|
e1->e.float_val = (int) f1 << (int) f2;
|
|
break;
|
|
case SHR:
|
|
e1->e.float_val = (int) f1 >> (int) f2;
|
|
break;
|
|
case AND:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = f1 && f2;
|
|
break;
|
|
case OR:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = f1 || f2;
|
|
break;
|
|
case LT:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = f1 < f2;
|
|
break;
|
|
case GT:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = f1 > f2;
|
|
break;
|
|
case LE:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = f1 <= f2;
|
|
break;
|
|
case GE:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = f1 >= f2;
|
|
break;
|
|
case EQ:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = f1 == f2;
|
|
break;
|
|
case NE:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = f1 != f2;
|
|
break;
|
|
default:
|
|
return error (e1, "invalid operand for float");
|
|
}
|
|
return e1;
|
|
}
|
|
|
|
static expr_t *
|
|
do_op_vector (int op, expr_t *e1, expr_t *e2)
|
|
{
|
|
float *v1, *v2;
|
|
|
|
v1 = e1->e.vector_val;
|
|
v2 = e2->e.vector_val;
|
|
|
|
switch (op) {
|
|
case '+':
|
|
VectorAdd (v1, v2, v1);
|
|
break;
|
|
case '-':
|
|
VectorSubtract (v1, v2, v1);
|
|
break;
|
|
case '*':
|
|
e1->type = ex_float;
|
|
e1->e.float_val = DotProduct (v1, v2);
|
|
break;
|
|
case EQ:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = (v1[0] == v2[0])
|
|
&& (v1[1] == v2[1])
|
|
&& (v1[2] == v2[2]);
|
|
break;
|
|
case NE:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = (v1[0] == v2[0])
|
|
|| (v1[1] != v2[1])
|
|
|| (v1[2] != v2[2]);
|
|
break;
|
|
default:
|
|
return error (e1, "invalid operand for vector");
|
|
}
|
|
return e1;
|
|
}
|
|
|
|
static expr_t *
|
|
do_op_integer (int op, expr_t *e1, expr_t *e2)
|
|
{
|
|
int i1, i2;
|
|
|
|
i1 = e1->e.integer_val;
|
|
i2 = e2->e.integer_val;
|
|
|
|
switch (op) {
|
|
case '+':
|
|
e1->e.integer_val += i2;
|
|
break;
|
|
case '-':
|
|
e1->e.integer_val -= i2;
|
|
break;
|
|
case '*':
|
|
e1->e.integer_val *= i2;
|
|
break;
|
|
case '/':
|
|
if (options.warnings.integer_divide)
|
|
warning (e2, "%d / %d == %d", i1, i2, i1 / i2);
|
|
e1->e.integer_val /= i2;
|
|
break;
|
|
case '&':
|
|
e1->e.integer_val = i1 & i2;
|
|
break;
|
|
case '|':
|
|
e1->e.integer_val = i1 | i2;
|
|
break;
|
|
case '^':
|
|
e1->e.integer_val = i1 ^ i2;
|
|
break;
|
|
case '%':
|
|
e1->e.integer_val = i1 % i2;
|
|
break;
|
|
case SHL:
|
|
e1->e.integer_val = i1 << i2;
|
|
break;
|
|
case SHR:
|
|
e1->e.integer_val = i1 >> i2;
|
|
break;
|
|
case AND:
|
|
e1->e.integer_val = i1 && i2;
|
|
break;
|
|
case OR:
|
|
e1->e.integer_val = i1 || i2;
|
|
break;
|
|
case LT:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = i1 < i2;
|
|
break;
|
|
case GT:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = i1 > i2;
|
|
break;
|
|
case LE:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = i1 <= i2;
|
|
break;
|
|
case GE:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = i1 >= i2;
|
|
break;
|
|
case EQ:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = i1 == i2;
|
|
break;
|
|
case NE:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = i1 != i2;
|
|
break;
|
|
default:
|
|
return error (e1, "invalid operand for integer");
|
|
}
|
|
return e1;
|
|
}
|
|
|
|
static expr_t *
|
|
do_op_uinteger (int op, expr_t *e1, expr_t *e2)
|
|
{
|
|
unsigned int i1, i2;
|
|
|
|
i1 = e1->e.uinteger_val;
|
|
i2 = e2->e.uinteger_val;
|
|
|
|
switch (op) {
|
|
case '+':
|
|
e1->e.uinteger_val += i2;
|
|
break;
|
|
case '-':
|
|
e1->e.uinteger_val -= i2;
|
|
break;
|
|
case '*':
|
|
e1->e.uinteger_val *= i2;
|
|
break;
|
|
case '/':
|
|
if (options.warnings.integer_divide)
|
|
warning (e2, "%d / %d == %d", i1, i2, i1 / i2);
|
|
e1->e.uinteger_val /= i2;
|
|
break;
|
|
case '&':
|
|
e1->e.uinteger_val = i1 & i2;
|
|
break;
|
|
case '|':
|
|
e1->e.uinteger_val = i1 | i2;
|
|
break;
|
|
case '^':
|
|
e1->e.uinteger_val = i1 ^ i2;
|
|
break;
|
|
case '%':
|
|
e1->e.uinteger_val = i1 % i2;
|
|
break;
|
|
case SHL:
|
|
e1->e.uinteger_val = i1 << i2;
|
|
break;
|
|
case SHR:
|
|
e1->e.uinteger_val = i1 >> i2;
|
|
break;
|
|
case AND:
|
|
e1->e.uinteger_val = i1 && i2;
|
|
break;
|
|
case OR:
|
|
e1->e.uinteger_val = i1 || i2;
|
|
break;
|
|
case LT:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = i1 < i2;
|
|
break;
|
|
case GT:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = i1 > i2;
|
|
break;
|
|
case LE:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = i1 <= i2;
|
|
break;
|
|
case GE:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = i1 >= i2;
|
|
break;
|
|
case EQ:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = i1 == i2;
|
|
break;
|
|
case NE:
|
|
e1->type = ex_integer;
|
|
e1->e.integer_val = i1 != i2;
|
|
break;
|
|
default:
|
|
return error (e1, "invalid operand for uinteger");
|
|
}
|
|
return e1;
|
|
}
|
|
|
|
static expr_t *
|
|
do_op_huh (int op, expr_t *e1, expr_t *e2)
|
|
{
|
|
return error (e1, "funny constant");
|
|
}
|
|
|
|
static expr_t *(*do_op[]) (int op, expr_t *e1, expr_t *e2) = {
|
|
do_op_huh, // ev_void
|
|
do_op_string, // ev_string
|
|
do_op_float, // ev_float
|
|
do_op_vector, // ev_vector
|
|
do_op_huh, // ev_entity
|
|
do_op_huh, // ev_field
|
|
do_op_huh, // ev_func
|
|
do_op_huh, // ev_pointer
|
|
do_op_huh, // ev_quaternion
|
|
do_op_integer, // ev_integer
|
|
do_op_uinteger, // ev_uinteger
|
|
do_op_huh, // ev_short
|
|
do_op_huh, // ev_struct
|
|
};
|
|
|
|
static expr_t *
|
|
binary_const (int op, expr_t *e1, expr_t *e2)
|
|
{
|
|
etype_t t1, t2;
|
|
|
|
t1 = extract_type (e1);
|
|
t2 = extract_type (e2);
|
|
|
|
if (t1 == t2) {
|
|
return do_op[t1] (op, e1, e2);
|
|
} else {
|
|
return type_mismatch (e1, e2, op);
|
|
}
|
|
}
|
|
|
|
static expr_t *
|
|
field_expr (expr_t *e1, expr_t *e2)
|
|
{
|
|
type_t *t1, *t2;
|
|
expr_t *e;
|
|
struct_field_t *field;
|
|
|
|
t1 = get_type (e1);
|
|
switch (t1->type) {
|
|
case ev_struct:
|
|
if (e2->type != ex_name)
|
|
return error (e2, "structure field name expected");
|
|
field = struct_find_field (t1, e2->e.string_val);
|
|
if (!field)
|
|
return error (e2, "structure has no field %s",
|
|
e2->e.string_val);
|
|
e2->type = ex_short;
|
|
e2->e.short_val = field->offset;
|
|
e = unary_expr ('.', address_expr (e1, e2, field->type));
|
|
return e;
|
|
case ev_pointer:
|
|
if (t1->aux_type->type == ev_struct) {
|
|
if (e2->type == ex_name) {
|
|
field = struct_find_field (t1->aux_type, e2->e.string_val);
|
|
if (!field)
|
|
return error (e2, "structure has no field %s",
|
|
e2->e.string_val);
|
|
e2->type = ex_short;
|
|
e2->e.short_val = field->offset;
|
|
t1 = pointer_type (field->type);
|
|
}
|
|
}
|
|
if (e1->type == ex_pointer) {
|
|
if (e2->type == ex_short) {
|
|
e1->e.pointer.val += e2->e.short_val;
|
|
} else if (e2->type == ex_integer) {
|
|
e1->e.pointer.val += e2->e.integer_val;
|
|
} else if (e2->type == ex_uinteger) {
|
|
e1->e.pointer.val += e2->e.uinteger_val;
|
|
} else {
|
|
break;
|
|
}
|
|
e1->e.pointer.type = t1->aux_type;
|
|
return unary_expr ('.', e1);
|
|
} else {
|
|
e = new_binary_expr ('&', e1, e2);
|
|
e->e.expr.type = t1;
|
|
return unary_expr ('.', e);
|
|
}
|
|
break;
|
|
case ev_entity:
|
|
t2 = get_type (e2);
|
|
if (t2->type == ev_field) {
|
|
e = new_binary_expr ('.', e1, e2);
|
|
e->e.expr.type = t2->aux_type;
|
|
return e;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return type_mismatch (e1, e2, '.');
|
|
}
|
|
|
|
expr_t *
|
|
test_expr (expr_t *e, int test)
|
|
{
|
|
expr_t *new = 0;
|
|
|
|
check_initialized (e);
|
|
|
|
if (!test)
|
|
return unary_expr ('!', e);
|
|
|
|
switch (extract_type (e)) {
|
|
case ev_type_count:
|
|
error (e, "internal error");
|
|
abort ();
|
|
case ev_void:
|
|
return error (e, "void has no value");
|
|
case ev_string:
|
|
new = new_expr ();
|
|
new->type = ex_string;
|
|
break;
|
|
case ev_uinteger:
|
|
case ev_integer:
|
|
case ev_short:
|
|
return e;
|
|
case ev_float:
|
|
if (options.code.progsversion == PROG_ID_VERSION)
|
|
return e;
|
|
new = new_expr ();
|
|
new->type = ex_float;
|
|
break;
|
|
case ev_vector:
|
|
new = new_expr ();
|
|
new->type = ex_vector;
|
|
break;
|
|
case ev_entity:
|
|
new = new_expr ();
|
|
new->type = ex_entity;
|
|
break;
|
|
case ev_field:
|
|
new = new_expr ();
|
|
new->type = ex_nil;
|
|
break;
|
|
case ev_func:
|
|
new = new_expr ();
|
|
new->type = ex_nil;
|
|
break;
|
|
case ev_pointer:
|
|
new = new_expr ();
|
|
new->type = ex_nil;
|
|
break;
|
|
case ev_quaternion:
|
|
new = new_expr ();
|
|
new->type = ex_quaternion;
|
|
break;
|
|
case ev_struct:
|
|
return error (e, "struct cannot be tested");
|
|
}
|
|
new->line = e->line;
|
|
new->file = e->file;
|
|
new = binary_expr (NE, e, new);
|
|
new->line = e->line;
|
|
new->file = e->file;
|
|
return new;
|
|
}
|
|
|
|
void
|
|
convert_int (expr_t *e)
|
|
{
|
|
e->type = ex_float;
|
|
e->e.float_val = e->e.integer_val;
|
|
}
|
|
|
|
void
|
|
convert_nil (expr_t *e, type_t *t)
|
|
{
|
|
e->type = expr_types[t->type];
|
|
if (e->type == ex_pointer)
|
|
e->e.pointer.type = &type_void;
|
|
}
|
|
|
|
expr_t *
|
|
binary_expr (int op, expr_t *e1, expr_t *e2)
|
|
{
|
|
type_t *t1, *t2;
|
|
type_t *type = 0;
|
|
expr_t *e;
|
|
|
|
convert_name (e1);
|
|
check_initialized (e1);
|
|
|
|
if (e1->type == ex_block && e1->e.block.is_call
|
|
&& e2->type == ex_block && e2->e.block.is_call && e1->e.block.result) {
|
|
e = new_temp_def_expr (e1->e.block.result->e.def->type);
|
|
inc_users (e); // for the block itself
|
|
e1 = assign_expr (e, e1);
|
|
}
|
|
|
|
if (op == '.')
|
|
return field_expr (e1, e2);
|
|
|
|
convert_name (e2);
|
|
check_initialized (e2);
|
|
|
|
if (op == OR || op == AND) {
|
|
e1 = test_expr (e1, true);
|
|
e2 = test_expr (e2, true);
|
|
}
|
|
|
|
t1 = get_type (e1);
|
|
t2 = get_type (e2);
|
|
if (!t1 || !t2) {
|
|
error (e1, "internal error");
|
|
abort ();
|
|
}
|
|
if (op == EQ || op == NE) {
|
|
if (e1->type == ex_nil) {
|
|
t1 = t2;
|
|
convert_nil (e1, t1);
|
|
} else if (e2->type == ex_nil) {
|
|
t2 = t1;
|
|
convert_nil (e2, t2);
|
|
}
|
|
}
|
|
|
|
if (e1->type == ex_integer
|
|
&& (t2 == &type_float
|
|
|| t2 == &type_vector
|
|
|| t2 == &type_quaternion)) {
|
|
convert_int (e1);
|
|
t1 = &type_float;
|
|
} else if (e2->type == ex_integer
|
|
&& (t1 == &type_float
|
|
|| t1 == &type_vector
|
|
|| t1 == &type_quaternion)) {
|
|
convert_int (e2);
|
|
t2 = &type_float;
|
|
}
|
|
|
|
if (e1->type >= ex_string && e2->type >= ex_string)
|
|
return binary_const (op, e1, e2);
|
|
|
|
if ((op == '&' || op == '|')
|
|
&& e1->type == ex_uexpr && e1->e.expr.op == '!' && !e1->paren) {
|
|
warning (e1, "ambiguous logic. Suggest explicit parentheses with "
|
|
"expressions involving ! and %c", op);
|
|
}
|
|
|
|
if (t1 != t2) {
|
|
switch (t1->type) {
|
|
case ev_float:
|
|
if (t2 == &type_vector && op == '*') {
|
|
type = &type_vector;
|
|
} else {
|
|
goto type_mismatch;
|
|
}
|
|
break;
|
|
case ev_vector:
|
|
if (t2 == &type_float && op == '*') {
|
|
type = &type_vector;
|
|
} else {
|
|
goto type_mismatch;
|
|
}
|
|
break;
|
|
case ev_field:
|
|
if (t1->aux_type == t2) {
|
|
type = t1->aux_type;
|
|
} else {
|
|
goto type_mismatch;
|
|
}
|
|
break;
|
|
case ev_func:
|
|
if (e1->type == ex_func && !e1->e.func_val) {
|
|
type = t2;
|
|
} else if (e2->type == ex_func && !e2->e.func_val) {
|
|
type = t1;
|
|
} else {
|
|
goto type_mismatch;
|
|
}
|
|
break;
|
|
default:
|
|
type_mismatch:
|
|
return type_mismatch (e1, e2, op);
|
|
}
|
|
} else {
|
|
type = t1;
|
|
}
|
|
if ((op >= OR && op <= GT) || op == '>' || op == '<') {
|
|
if (options.code.progsversion > PROG_ID_VERSION)
|
|
type = &type_integer;
|
|
else
|
|
type = &type_float;
|
|
} else if (op == '*' && t1 == &type_vector && t2 == &type_vector) {
|
|
type = &type_float;
|
|
}
|
|
if (!type)
|
|
error (e1, "internal error");
|
|
|
|
e = new_binary_expr (op, e1, e2);
|
|
e->e.expr.type = type;
|
|
return e;
|
|
}
|
|
|
|
expr_t *
|
|
asx_expr (int op, expr_t *e1, expr_t *e2)
|
|
{
|
|
expr_t *e = new_expr ();
|
|
|
|
*e = *e1;
|
|
return assign_expr (e, binary_expr (op, e1, e2));
|
|
}
|
|
|
|
expr_t *
|
|
unary_expr (int op, expr_t *e)
|
|
{
|
|
convert_name (e);
|
|
check_initialized (e);
|
|
switch (op) {
|
|
case '-':
|
|
switch (e->type) {
|
|
case ex_label:
|
|
case ex_name:
|
|
error (e, "internal error");
|
|
abort ();
|
|
case ex_uexpr:
|
|
if (e->e.expr.op == '-')
|
|
return e->e.expr.e1;
|
|
case ex_block:
|
|
if (!e->e.block.result)
|
|
return error (e, "invalid type for unary -");
|
|
case ex_expr:
|
|
case ex_def:
|
|
case ex_temp:
|
|
{
|
|
expr_t *n = new_unary_expr (op, e);
|
|
|
|
n->e.expr.type = (e->type == ex_def)
|
|
? e->e.def->type : e->e.expr.type;
|
|
return n;
|
|
}
|
|
case ex_short:
|
|
e->e.short_val *= -1;
|
|
return e;
|
|
case ex_integer:
|
|
case ex_uinteger:
|
|
e->e.integer_val *= -1;
|
|
return e;
|
|
case ex_float:
|
|
e->e.float_val *= -1;
|
|
return e;
|
|
case ex_nil:
|
|
case ex_string:
|
|
case ex_entity:
|
|
case ex_field:
|
|
case ex_func:
|
|
case ex_pointer:
|
|
return error (e, "invalid type for unary -");
|
|
case ex_vector:
|
|
e->e.vector_val[0] *= -1;
|
|
e->e.vector_val[1] *= -1;
|
|
e->e.vector_val[2] *= -1;
|
|
return e;
|
|
case ex_quaternion:
|
|
e->e.quaternion_val[0] *= -1;
|
|
e->e.quaternion_val[1] *= -1;
|
|
e->e.quaternion_val[2] *= -1;
|
|
e->e.quaternion_val[3] *= -1;
|
|
return e;
|
|
}
|
|
break;
|
|
case '!':
|
|
switch (e->type) {
|
|
case ex_label:
|
|
case ex_name:
|
|
error (e, "internal error");
|
|
abort ();
|
|
case ex_block:
|
|
if (!e->e.block.result)
|
|
return error (e, "invalid type for unary !");
|
|
case ex_uexpr:
|
|
case ex_expr:
|
|
case ex_def:
|
|
case ex_temp:
|
|
{
|
|
expr_t *n = new_unary_expr (op, e);
|
|
|
|
if (options.code.progsversion > PROG_ID_VERSION)
|
|
n->e.expr.type = &type_integer;
|
|
else
|
|
n->e.expr.type = &type_float;
|
|
return n;
|
|
}
|
|
case ex_nil:
|
|
return error (e, "invalid type for unary !");
|
|
case ex_short:
|
|
e->e.short_val = !e->e.short_val;
|
|
return e;
|
|
case ex_integer:
|
|
case ex_uinteger:
|
|
e->e.integer_val = !e->e.integer_val;
|
|
return e;
|
|
case ex_float:
|
|
e->e.integer_val = !e->e.float_val;
|
|
e->type = ex_integer;
|
|
return e;
|
|
case ex_string:
|
|
e->e.integer_val = !e->e.string_val || !e->e.string_val[0];
|
|
e->type = ex_integer;
|
|
return e;
|
|
case ex_vector:
|
|
e->e.integer_val = !e->e.vector_val[0]
|
|
&& !e->e.vector_val[1]
|
|
&& !e->e.vector_val[2];
|
|
e->type = ex_integer;
|
|
return e;
|
|
case ex_quaternion:
|
|
e->e.integer_val = !e->e.quaternion_val[0]
|
|
&& !e->e.quaternion_val[1]
|
|
&& !e->e.quaternion_val[2]
|
|
&& !e->e.quaternion_val[3];
|
|
e->type = ex_integer;
|
|
return e;
|
|
case ex_entity:
|
|
case ex_field:
|
|
case ex_func:
|
|
case ex_pointer:
|
|
error (e, "internal error");
|
|
abort ();
|
|
}
|
|
break;
|
|
case '~':
|
|
switch (e->type) {
|
|
case ex_label:
|
|
case ex_name:
|
|
error (e, "internal error");
|
|
abort ();
|
|
case ex_uexpr:
|
|
if (e->e.expr.op == '~')
|
|
return e->e.expr.e1;
|
|
case ex_block:
|
|
if (!e->e.block.result)
|
|
return error (e, "invalid type for unary ~");
|
|
case ex_expr:
|
|
case ex_def:
|
|
case ex_temp:
|
|
{
|
|
expr_t *n = new_unary_expr (op, e);
|
|
type_t *t = get_type (e);
|
|
|
|
if (t != &type_integer && t != &type_float)
|
|
return error (e, "invalid type for unary ~");
|
|
n->e.expr.type = t;
|
|
return n;
|
|
}
|
|
case ex_short:
|
|
e->e.short_val = ~e->e.short_val;
|
|
return e;
|
|
case ex_integer:
|
|
case ex_uinteger:
|
|
e->e.integer_val = ~e->e.integer_val;
|
|
return e;
|
|
case ex_float:
|
|
e->e.float_val = ~(int) e->e.float_val;
|
|
e->type = ex_integer;
|
|
return e;
|
|
case ex_nil:
|
|
case ex_string:
|
|
case ex_vector:
|
|
case ex_quaternion:
|
|
case ex_entity:
|
|
case ex_field:
|
|
case ex_func:
|
|
case ex_pointer:
|
|
return error (e, "invalid type for unary ~");
|
|
}
|
|
break;
|
|
case '.':
|
|
if (extract_type (e) != ev_pointer)
|
|
return error (e, "invalid type for unary .");
|
|
e = new_unary_expr ('.', e);
|
|
e->e.expr.type = get_type (e->e.expr.e1)->aux_type;
|
|
return e;
|
|
}
|
|
error (e, "internal error");
|
|
abort ();
|
|
}
|
|
|
|
int
|
|
has_function_call (expr_t *e)
|
|
{
|
|
switch (e->type) {
|
|
case ex_block:
|
|
if (e->e.block.is_call)
|
|
return 1;
|
|
for (e = e->e.block.head; e; e = e->next)
|
|
if (has_function_call (e))
|
|
return 1;
|
|
return 0;
|
|
case ex_expr:
|
|
if (e->e.expr.op == 'c')
|
|
return 1;
|
|
return (has_function_call (e->e.expr.e1)
|
|
|| has_function_call (e->e.expr.e2));
|
|
case ex_uexpr:
|
|
if (e->e.expr.op != 'g')
|
|
return has_function_call (e->e.expr.e1);
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
expr_t *
|
|
function_expr (expr_t *e1, expr_t *e2)
|
|
{
|
|
etype_t t1;
|
|
expr_t *e;
|
|
int parm_count = 0;
|
|
type_t *ftype;
|
|
int i;
|
|
expr_t *args = 0, **a = &args;
|
|
type_t *arg_types[MAX_PARMS];
|
|
expr_t *arg_exprs[MAX_PARMS][2];
|
|
int arg_expr_count = 0;
|
|
expr_t *call;
|
|
expr_t *err = 0;
|
|
|
|
t1 = extract_type (e1);
|
|
|
|
if (t1 != ev_func) {
|
|
if (e1->type == ex_def)
|
|
return error (e1, "Called object \"%s\" is not a function",
|
|
e1->e.def->name);
|
|
else
|
|
return error (e1, "Called object is not a function");
|
|
}
|
|
|
|
if (e1->type == ex_def && e2 && e2->type == ex_string) {
|
|
// FIXME eww, I hate this, but it's needed :(
|
|
// FIXME make a qc hook? :)
|
|
def_t *func = e1->e.def;
|
|
def_t *e = PR_ReuseConstant (e2, 0);
|
|
|
|
if (strncmp (func->name, "precache_sound", 14) == 0)
|
|
PrecacheSound (e, func->name[4]);
|
|
else if (strncmp (func->name, "precache_model", 14) == 0)
|
|
PrecacheModel (e, func->name[14]);
|
|
else if (strncmp (func->name, "precache_file", 13) == 0)
|
|
PrecacheFile (e, func->name[13]);
|
|
}
|
|
|
|
ftype = e1->type == ex_def ? e1->e.def->type : e1->e.expr.type;
|
|
|
|
for (e = e2; e; e = e->next)
|
|
parm_count++;
|
|
if (parm_count > MAX_PARMS) {
|
|
return error (e1, "more than %d parameters", MAX_PARMS);
|
|
}
|
|
if (ftype->num_parms != -1) {
|
|
if (parm_count > ftype->num_parms) {
|
|
return error (e1, "too many arguments");
|
|
} else if (parm_count < ftype->num_parms) {
|
|
if (!options.traditional)
|
|
return error (e1, "too few arguments");
|
|
warning (e1, "too few arguments");
|
|
}
|
|
}
|
|
for (i = parm_count, e = e2; i > 0; i--, e = e->next) {
|
|
type_t *t = get_type (e);
|
|
|
|
if (ftype->parm_types[i - 1] == &type_float && e->type == ex_integer) {
|
|
e->type = ex_float;
|
|
e->e.float_val = e->e.integer_val;
|
|
t = &type_float;
|
|
}
|
|
if (ftype->num_parms != -1) {
|
|
if (t == &type_void) {
|
|
t = ftype->parm_types[i - 1];
|
|
e->type = expr_types[t->type];
|
|
}
|
|
if (t != ftype->parm_types[i - 1]) {
|
|
print_type (ftype->parm_types[i - 1]); puts("");
|
|
print_type (t); puts("");
|
|
err = error (e, "type mismatch for parameter %d of %s",
|
|
i, e1->e.def->name);
|
|
}
|
|
} else {
|
|
if (e->type == ex_integer && options.warnings.vararg_integer)
|
|
warning (e, "passing integer consant into ... function");
|
|
}
|
|
arg_types[parm_count - i] = t;
|
|
}
|
|
if (err)
|
|
return err;
|
|
|
|
call = new_block_expr ();
|
|
call->e.block.is_call = 1;
|
|
for (e = e2, i = 0; e; e = e->next, i++) {
|
|
if (has_function_call (e)) {
|
|
*a = new_temp_def_expr (arg_types[i]);
|
|
arg_exprs[arg_expr_count][0] = e;
|
|
arg_exprs[arg_expr_count][1] = *a;
|
|
arg_expr_count++;
|
|
} else {
|
|
*a = e;
|
|
}
|
|
a = &(*a)->next;
|
|
}
|
|
for (i = 0; i < arg_expr_count - 1; i++) {
|
|
append_expr (call, assign_expr (arg_exprs[i][1], arg_exprs[i][0]));
|
|
}
|
|
if (arg_expr_count) {
|
|
e = new_bind_expr (arg_exprs[arg_expr_count - 1][0],
|
|
arg_exprs[arg_expr_count - 1][1]);
|
|
inc_users (arg_exprs[arg_expr_count - 1][0]);
|
|
inc_users (arg_exprs[arg_expr_count - 1][1]);
|
|
append_expr (call, e);
|
|
}
|
|
e = new_binary_expr ('c', e1, args);
|
|
e->e.expr.type = ftype->aux_type;
|
|
append_expr (call, e);
|
|
if (ftype->aux_type != &type_void) {
|
|
expr_t *ret = new_expr ();
|
|
|
|
ret->type = ex_def;
|
|
ret->e.def = memcpy (malloc (sizeof (def_t)), &def_ret, sizeof (def_t));
|
|
|
|
if (!ret->e.def)
|
|
Sys_Error ("function_expr: Memory Allocation Failure\n");
|
|
ret->e.def->type = ftype->aux_type;
|
|
call->e.block.result = ret;
|
|
}
|
|
return call;
|
|
}
|
|
|
|
expr_t *
|
|
return_expr (function_t *f, expr_t *e)
|
|
{
|
|
if (!e) {
|
|
if (f->def->type->aux_type != &type_void) {
|
|
if (options.traditional) {
|
|
warning (e, "return from non-void function without a value");
|
|
e = new_expr ();
|
|
e->type = ex_nil;
|
|
} else {
|
|
e = error (e, "return from non-void function without a value");
|
|
return e;
|
|
}
|
|
}
|
|
}
|
|
if (e) {
|
|
type_t *t = get_type (e);
|
|
|
|
if (f->def->type->aux_type == &type_void)
|
|
return error (e, "returning a value for a void function");
|
|
if (f->def->type->aux_type == &type_float && e->type == ex_integer) {
|
|
e->type = ex_float;
|
|
e->e.float_val = e->e.integer_val;
|
|
t = &type_float;
|
|
}
|
|
if (t == &type_void) {
|
|
t = f->def->type->aux_type;
|
|
e->type = expr_types[t->type];
|
|
}
|
|
if (f->def->type->aux_type != t)
|
|
return error (e, "type mismatch for return value of %s",
|
|
f->def->name);
|
|
}
|
|
return new_unary_expr ('r', e);
|
|
}
|
|
|
|
expr_t *
|
|
conditional_expr (expr_t *cond, expr_t *e1, expr_t *e2)
|
|
{
|
|
expr_t *block = new_block_expr ();
|
|
type_t *type1 = get_type (e1);
|
|
type_t *type2 = get_type (e2);
|
|
expr_t *tlabel = new_label_expr ();
|
|
expr_t *elabel = new_label_expr ();
|
|
|
|
block->e.block.result = (type1 == type2) ? new_temp_def_expr (type1) : 0;
|
|
append_expr (block, new_binary_expr ('i', test_expr (cond, 1), tlabel));
|
|
if (block->e.block.result)
|
|
append_expr (block, assign_expr (block->e.block.result, e2));
|
|
else
|
|
append_expr (block, e2);
|
|
append_expr (block, new_unary_expr ('g', elabel));
|
|
append_expr (block, tlabel);
|
|
if (block->e.block.result)
|
|
append_expr (block, assign_expr (block->e.block.result, e1));
|
|
else
|
|
append_expr (block, e1);
|
|
append_expr (block, elabel);
|
|
return block;
|
|
}
|
|
|
|
expr_t *
|
|
incop_expr (int op, expr_t *e, int postop)
|
|
{
|
|
expr_t *one = new_expr ();
|
|
expr_t *incop;
|
|
|
|
one->type = ex_integer; // integer constants get auto-cast to float
|
|
one->e.integer_val = 1;
|
|
incop = asx_expr (op, e, one);
|
|
if (postop) {
|
|
expr_t *temp;
|
|
type_t *type = get_type (e);
|
|
expr_t *block = new_block_expr ();
|
|
|
|
temp = new_temp_def_expr (type);
|
|
append_expr (block, assign_expr (temp, e));
|
|
append_expr (block, incop);
|
|
block->e.block.result = temp;
|
|
return block;
|
|
}
|
|
return incop;
|
|
}
|
|
|
|
expr_t *
|
|
array_expr (expr_t *array, expr_t *index)
|
|
{
|
|
type_t *array_type = get_type (array);
|
|
type_t *index_type = get_type (index);
|
|
expr_t *scale;
|
|
expr_t *e;
|
|
int size;
|
|
|
|
if (array_type->type != ev_pointer || array_type->num_parms < 1)
|
|
return error (array, "not an array");
|
|
if (index_type != &type_integer && index_type != &type_uinteger)
|
|
return error (index, "invalid array index type");
|
|
if (index->type >= ex_integer &&
|
|
index->e.uinteger_val >= array_type->num_parms)
|
|
return error (index, "array index out of bounds");
|
|
size = PR_GetTypeSize (array_type->aux_type);
|
|
if (size > 1) {
|
|
scale = new_expr ();
|
|
scale->type = expr_types[index_type->type];
|
|
scale->e.integer_val = size;
|
|
index = binary_expr ('*', index, scale);
|
|
}
|
|
if ((index->type == ex_integer
|
|
&& index->e.integer_val < 32768 && index->e.integer_val >= -32768)
|
|
|| (index->type == ex_uinteger
|
|
&& index->e.uinteger_val < 32768)) {
|
|
index->type = ex_short;
|
|
}
|
|
e = new_binary_expr ('.', array, index);
|
|
e->e.expr.type = pointer_type (array_type->aux_type);
|
|
return unary_expr ('.', e);
|
|
}
|
|
|
|
expr_t *
|
|
address_expr (expr_t *e1, expr_t *e2, type_t *t)
|
|
{
|
|
expr_t *e;
|
|
type_t *type = 0;
|
|
|
|
if (!t)
|
|
t = get_type (e1);
|
|
|
|
switch (e1->type) {
|
|
case ex_def:
|
|
type = e1->e.def->type;
|
|
if (type->type == ev_struct) {
|
|
int abs = !e1->e.def->scope;
|
|
def_t *def = e1->e.def;
|
|
|
|
e = e1;
|
|
e->type = ex_pointer;
|
|
e->e.pointer.val = def->ofs;
|
|
e->e.pointer.type = t;
|
|
e->e.pointer.abs = abs;
|
|
} else {
|
|
e = new_unary_expr ('&', e1);
|
|
e->e.expr.type = pointer_type (type);
|
|
}
|
|
break;
|
|
case ex_expr:
|
|
if (e1->e.expr.op == '.') {
|
|
e = e1;
|
|
e->e.expr.op = '&';
|
|
e->e.expr.type = pointer_type (e->e.expr.type);
|
|
break;
|
|
}
|
|
return error (e1, "invalid type for unary &");
|
|
case ex_uexpr:
|
|
if (e1->e.expr.op == '.') {
|
|
e = e1->e.expr.e1;
|
|
type = get_type (e)->aux_type;
|
|
if (e->type == ex_expr && e->e.expr.op == '.') {
|
|
e->e.expr.type = pointer_type (e->e.expr.type);
|
|
e->e.expr.op = '&';
|
|
}
|
|
break;
|
|
}
|
|
return error (e1, "invalid type for unary &");
|
|
default:
|
|
return error (e1, "invalid type for unary &");
|
|
}
|
|
if (e2) {
|
|
if (e->type == ex_pointer && e2->type == ex_short) {
|
|
e->e.pointer.val += e2->e.short_val;
|
|
} else {
|
|
if (e2->type != ex_short || e2->e.short_val) {
|
|
e = new_binary_expr ('&', e, e2);
|
|
}
|
|
if (e->type == ex_expr || e->type == ex_uexpr)
|
|
e->e.expr.type = pointer_type (t);
|
|
}
|
|
}
|
|
return e;
|
|
}
|
|
|
|
static inline int
|
|
is_indirect (expr_t *e)
|
|
{
|
|
if (e->type == ex_expr && e->e.expr.op == '.')
|
|
return 1;
|
|
if (!(e->type == ex_uexpr && e->e.expr.op == '.'))
|
|
return 0;
|
|
e = e->e.expr.e1;
|
|
if (e->type != ex_pointer
|
|
|| !(e->e.pointer.val > 0 && e->e.pointer.val < 65536))
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
expr_t *
|
|
assign_expr (expr_t *e1, expr_t *e2)
|
|
{
|
|
int op = '=';
|
|
type_t *t1, *t2, *type;
|
|
expr_t *e;
|
|
|
|
convert_name (e1);
|
|
if (e1->type == ex_def)
|
|
PR_DefInitialized (e1->e.def);
|
|
//XXX func = func ???
|
|
convert_name (e2);
|
|
check_initialized (e2);
|
|
t1 = get_type (e1);
|
|
t2 = get_type (e2);
|
|
if (!t1 || !t2) {
|
|
error (e1, "internal error");
|
|
abort ();
|
|
}
|
|
if (e2->type == ex_integer
|
|
&& (t1 == &type_float
|
|
|| t1 == &type_vector
|
|
|| t1 == &type_quaternion)) {
|
|
convert_int (e2);
|
|
t2 = &type_float;
|
|
}
|
|
|
|
if (t1->type != ev_void && e2->type == ex_nil) {
|
|
t2 = t1;
|
|
convert_nil (e2, t2);
|
|
}
|
|
|
|
if (t1 != t2) {
|
|
if (!options.traditional || t1->type != ev_func || t2->type != ev_func)
|
|
return type_mismatch (e1, e2, op);
|
|
warning (e1, "assignment between disparate function types");
|
|
type = t1;
|
|
} else {
|
|
type = t1;
|
|
}
|
|
if (is_indirect (e1) && is_indirect (e2)) {
|
|
expr_t *temp = new_temp_def_expr (t1);
|
|
|
|
e = new_block_expr ();
|
|
append_expr (e, assign_expr (temp, e2));
|
|
append_expr (e, assign_expr (e1, temp));
|
|
e->e.block.result = temp;
|
|
return e;
|
|
} else if (is_indirect (e1)) {
|
|
if (e1->type == ex_expr) {
|
|
if (get_type (e1->e.expr.e1) == &type_entity) {
|
|
type = e1->e.expr.type;
|
|
e1->e.expr.type = pointer_type (type);
|
|
e1->e.expr.op = '&';
|
|
}
|
|
op = PAS;
|
|
} else {
|
|
e = e1->e.expr.e1;
|
|
if (e->type != ex_pointer
|
|
|| !(e->e.pointer.val > 0 && e->e.pointer.val < 65536)) {
|
|
e1 = e;
|
|
op = PAS;
|
|
}
|
|
}
|
|
} else if (is_indirect (e2)) {
|
|
if (e2->type == ex_uexpr) {
|
|
e = e2->e.expr.e1;
|
|
if (e->type != ex_pointer
|
|
|| !(e->e.pointer.val > 0 && e->e.pointer.val < 65536)) {
|
|
e2 = e;
|
|
if (e2->type == ex_expr && e2->e.expr.op == '&'
|
|
&& e2->e.expr.type->type == ev_pointer)
|
|
e2->e.expr.op = '.';
|
|
}
|
|
}
|
|
}
|
|
if (!type)
|
|
error (e1, "internal error");
|
|
|
|
e = new_binary_expr (op, e1, e2);
|
|
e->e.expr.type = type;
|
|
return e;
|
|
}
|
|
|
|
expr_t *
|
|
cast_expr (type_t *t, expr_t *e)
|
|
{
|
|
expr_t *c;
|
|
|
|
if ((t != &type_integer && t != &type_uinteger
|
|
&& get_type (e) != &type_float)
|
|
&& (t != &type_float && get_type (e) != &type_integer)) {
|
|
return error (e, "can not cast from %s to %s",
|
|
pr_type_name[extract_type (e)], pr_type_name[t->type]);
|
|
}
|
|
c = new_unary_expr ('C', e);
|
|
c->e.expr.type = t;
|
|
return c;
|
|
}
|
|
|
|
void
|
|
init_elements (def_t *def, expr_t *eles)
|
|
{
|
|
expr_t *e;
|
|
int count, i;
|
|
float *g = &G_FLOAT (G_INT (def->ofs));
|
|
|
|
for (count = 0, e = eles->e.block.head; e; count++, e = e->next)
|
|
;
|
|
if (count > def->type->num_parms) {
|
|
warning (eles, "excessive elements in initializer");
|
|
count = def->type->num_parms;
|
|
}
|
|
for (i = 0, e = eles->e.block.head; i < count; i++, e = e->next) {
|
|
if (e->type == ex_block) {
|
|
warning (e, "not yet implemented");
|
|
} else if (e->type >= ex_string) {
|
|
if (get_type (e) != def->type->aux_type) {
|
|
error (e, "type mismatch in initializer");
|
|
g += pr_type_size[def->type->aux_type->type];
|
|
} else {
|
|
if (e->type == ex_string) {
|
|
*(int*)g = ReuseString (e->e.string_val);
|
|
} else {
|
|
memcpy (g, &e->e, pr_type_size[extract_type (e)] * 4);
|
|
}
|
|
g += pr_type_size[extract_type (e)];
|
|
}
|
|
} else {
|
|
error (e, "non-constant initializer");
|
|
}
|
|
}
|
|
}
|