mirror of
https://git.code.sf.net/p/quake/quakeforge
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247 lines
6.2 KiB
C
247 lines
6.2 KiB
C
/*
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expr.h
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expression construction and manipulations
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Copyright (C) 2001 Bill Currie <bill@taniwha.org>
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Author: Bill Currie <bill@taniwha.org>
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Date: 2001/06/15
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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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$Id$
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*/
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#ifndef __expr_h
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#define __expr_h
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#include "QF/pr_comp.h"
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typedef enum {
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ex_error,
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ex_state,
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ex_bool,
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ex_label,
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ex_block,
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ex_expr, // binary expression
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ex_uexpr, // unary expression
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ex_def,
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ex_temp, // temporary variable
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ex_nil, // umm, nil, null. nuff said
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ex_name,
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ex_string,
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ex_float,
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ex_vector,
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ex_entity,
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ex_field,
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ex_func,
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ex_pointer,
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ex_quaternion,
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ex_integer,
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ex_uinteger,
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ex_short,
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} expr_type;
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typedef struct ex_label_s {
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struct ex_label_s *next;
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struct reloc_s *refs;
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int ofs;
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const char *name;
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} ex_label_t;
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typedef struct {
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struct expr_s *head;
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struct expr_s **tail;
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struct expr_s *result;
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int is_call;
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} ex_block_t;
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typedef struct {
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struct expr_s *expr;
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struct def_s *def;
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struct type_s *type;
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int users;
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} ex_temp_t;
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typedef struct {
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int val;
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struct type_s *type;
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struct def_s *def;
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} ex_pointer_t;
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typedef struct {
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int size;
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struct expr_s *e[1];
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} ex_list_t;
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typedef struct {
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ex_list_t *true_list;
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ex_list_t *false_list;
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struct expr_s *e;
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} ex_bool_t;
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typedef struct {
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struct expr_s *frame;
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struct expr_s *think;
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struct expr_s *step;
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} ex_state_t;
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#define POINTER_VAL(p) (((p).def ? (p).def->ofs : 0) + (p).val)
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typedef struct expr_s {
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struct expr_s *next;
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expr_type type;
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int line;
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string_t file;
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unsigned paren:1;
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unsigned rvalue:1;
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union {
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ex_label_t label;
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ex_state_t state;
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ex_bool_t bool;
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ex_block_t block;
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struct {
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int op;
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struct type_s *type;
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struct expr_s *e1;
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struct expr_s *e2;
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} expr;
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struct def_s *def;
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ex_temp_t temp;
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const char *string_val;
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float float_val;
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float vector_val[3];
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int entity_val;
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int field_val;
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int func_val;
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ex_pointer_t pointer;
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float quaternion_val[4];
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int integer_val;
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unsigned int uinteger_val;
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short short_val;
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} e;
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} expr_t;
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extern etype_t qc_types[];
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extern struct type_s *ev_types[];
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extern expr_type expr_types[];
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expr_t *type_mismatch (expr_t *e1, expr_t *e2, int op);
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extern expr_t *local_expr;
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struct type_s *get_type (expr_t *e);
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etype_t extract_type (expr_t *e);
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expr_t *new_expr (void);
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const char *new_label_name (void);
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expr_t *new_label_expr (void);
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expr_t *new_state_expr (expr_t *frame, expr_t *think, expr_t *step);
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expr_t *new_bool_expr (ex_list_t *true_list, ex_list_t *false_list, expr_t *e);
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expr_t *new_block_expr (void);
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expr_t *new_binary_expr (int op, expr_t *e1, expr_t *e2);
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expr_t *new_unary_expr (int op, expr_t *e1);
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expr_t *new_def_expr (struct def_s *def);
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expr_t *new_temp_def_expr (struct type_s *type);
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expr_t *new_nil_expr (void);
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expr_t *new_name_expr (const char *name);
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expr_t *new_string_expr (const char *string_val);
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expr_t *new_float_expr (float float_val);
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expr_t *new_vector_expr (float *vector_val);
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expr_t *new_entity_expr (int entity_val);
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expr_t *new_field_expr (int field_val);
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expr_t *new_func_expr (int func_val);
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expr_t *new_pointer_expr (int val, struct type_s *type, struct def_s *def);
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expr_t *new_quaternion_expr (float *quaternion_val);
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expr_t *new_integer_expr (int integer_val);
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expr_t *new_uinteger_expr (unsigned int uinteger_val);
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expr_t *new_short_expr (short short_val);
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int is_constant (expr_t *e);
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int is_compare (int op);
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int is_logic (int op);
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expr_t *constant_expr (expr_t *var);
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expr_t *new_bind_expr (expr_t *e1, expr_t *e2);
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expr_t *new_self_expr (void);
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expr_t *new_this_expr (void);
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expr_t *new_ret_expr (struct type_s *type);
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expr_t *new_param_expr (struct type_s *type, int num);
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expr_t *new_move_expr (expr_t *e1, expr_t *e2, struct type_s *type);
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void inc_users (expr_t *e);
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void convert_name (expr_t *e);
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expr_t *append_expr (expr_t *block, expr_t *e);
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void print_expr (expr_t *e);
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void convert_int (expr_t *e);
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void convert_uint (expr_t *e);
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void convert_short (expr_t *e);
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void convert_uint_int (expr_t *e);
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void convert_int_uint (expr_t *e);
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void convert_short_int (expr_t *e);
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void convert_short_uint (expr_t *e);
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expr_t *test_expr (expr_t *e, int test);
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void backpatch (ex_list_t *list, expr_t *label);
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expr_t *convert_bool (expr_t *e, int block);
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expr_t *bool_expr (int op, expr_t *label, expr_t *e1, expr_t *e2);
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expr_t *binary_expr (int op, expr_t *e1, expr_t *e2);
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expr_t *asx_expr (int op, expr_t *e1, expr_t *e2);
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expr_t *unary_expr (int op, expr_t *e);
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expr_t *function_expr (expr_t *e1, expr_t *e2);
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struct function_s;
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expr_t *return_expr (struct function_s *f, expr_t *e);
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expr_t *conditional_expr (expr_t *cond, expr_t *e1, expr_t *e2);
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expr_t *incop_expr (int op, expr_t *e, int postop);
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expr_t *array_expr (expr_t *array, expr_t *index);
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expr_t *address_expr (expr_t *e1, expr_t *e2, struct type_s *t);
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expr_t *assign_expr (expr_t *e1, expr_t *e2);
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expr_t *cast_expr (struct type_s *t, expr_t *e);
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void init_elements (struct def_s *def, expr_t *eles);
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expr_t *error (expr_t *e, const char *fmt, ...) __attribute__((format(printf, 2,3)));
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void warning (expr_t *e, const char *fmt, ...) __attribute__((format(printf, 2,3)));
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void notice (expr_t *e, const char *fmt, ...) __attribute__((format(printf, 2,3)));
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const char *get_op_string (int op);
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extern int lineno_base;
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struct keywordarg_s;
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struct class_type_s;
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expr_t *selector_expr (struct keywordarg_s *selector);
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expr_t *protocol_expr (const char *protocol);
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expr_t *encode_expr (struct type_s *type);
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expr_t *super_expr (struct class_type_s *class_type);
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expr_t *message_expr (expr_t *receiver, struct keywordarg_s *message);
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expr_t *sizeof_expr (expr_t *expr, struct type_s *type);
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expr_t *fold_constants (expr_t *e);
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#endif//__expr_h
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