quakeforge/tools/qfcc/include/expr.h

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/*
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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>
Date: 2001/06/15
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This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
$Id$
*/
#ifndef __expr_h
#define __expr_h
typedef enum {
ex_error,
ex_label,
ex_block,
ex_expr, // binary expression
ex_uexpr, // unary expression
ex_def,
ex_temp, // temporary variable
ex_nil, // umm, nil, null. nuff said
ex_name,
ex_string,
ex_float,
ex_vector,
ex_entity,
ex_field,
ex_func,
ex_pointer,
ex_quaternion,
ex_integer,
ex_uinteger,
ex_short,
} expr_type;
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typedef struct ex_label_s {
struct ex_label_s *next;
struct reloc_s *refs;
int ofs;
const char *name;
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} ex_label_t;
typedef struct {
struct expr_s *head;
struct expr_s **tail;
struct expr_s *result;
int is_call;
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} ex_block_t;
typedef struct {
struct expr_s *expr;
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struct def_s *def;
struct type_s *type;
int users;
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} ex_temp_t;
typedef struct {
int val;
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struct type_s *type;
struct def_s *def;
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} ex_pointer_t;
typedef struct expr_s {
struct expr_s *next;
expr_type type;
int line;
string_t file;
unsigned paren:1;
unsigned rvalue:1;
union {
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ex_label_t label;
ex_block_t block;
struct {
int op;
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struct type_s *type;
struct expr_s *e1;
struct expr_s *e2;
} expr;
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struct def_s *def;
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ex_temp_t temp;
const char *string_val;
float float_val;
float vector_val[3];
int entity_val;
int field_val;
int func_val;
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ex_pointer_t pointer;
float quaternion_val[4];
Initial integer type support. qfcc /is/ partially broken when it comes to integer constants and float function args/return values. pr_comp.h: o add the integer opcodes to pr_opcode_e pr_edict.c: o add "quaternion" and "integer" to type_name[] o support quatnernion and integers types when printing values o support the integer opcodes when bounds checking pr_exec.c o enable the integer opcodes pr_opcode: o add the integer opcodes to the opcode table o logical operators all result in an integer rather than a value expr.h: o rename int_val to integer_val qfcc.h: o kill another magic number expr.c: o move the opcode to string conversion out of type_mismatch and into get_op_string o rename int_val to integer_val o general integer type support. o generate an internal comipiler error for null opcodes rather than segging. pr_imm.c: o rename int_val to integer_val o support integer constants, converting to float when needed. pr_lex.c: o magic number death and support quaternions and integers in type_size[] qc-lex.l o rename int_val to integer_val o support quaternion and integer type keywords qc-parse.y: o rename int_val to integer_val o use binary_expr instead of new_binary_expr for local initialized variables builtins.c: o rename int_val to integer_val o fix most (all?) of the INT related FIXMEs defs.qc: o use integer instead of float where it makes sense main.c: o read_result is now integer rather than float main.qc: o float -> integer where appropriate o new test for int const to float arg
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int integer_val;
unsigned int uinteger_val;
short short_val;
} e;
} expr_t;
extern etype_t qc_types[];
extern struct type_s *types[];
extern expr_type expr_types[];
extern expr_t *local_expr;
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struct type_s *get_type (expr_t *e);
etype_t extract_type (expr_t *e);
expr_t *new_expr (void);
const char *new_label_name (void);
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expr_t *new_label_expr (void);
expr_t *new_block_expr (void);
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expr_t *new_binary_expr (int op, expr_t *e1, expr_t *e2);
expr_t *new_unary_expr (int op, expr_t *e1);
expr_t *new_def_expr (struct def_s *def);
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expr_t *new_temp_def_expr (struct type_s *type);
expr_t *new_nil_expr (void);
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expr_t *new_name_expr (const char *name);
expr_t *new_string_expr (const char *string_val);
expr_t *new_float_expr (float float_val);
expr_t *new_vector_expr (float *vector_val);
expr_t *new_entity_expr (int entity_val);
expr_t *new_field_expr (int field_val);
expr_t *new_func_expr (int func_val);
//expr_t *new_pointer_expr ();
expr_t *new_quaternion_expr (float *quaternion_val);
expr_t *new_integer_expr (int integer_val);
expr_t *new_uinteger_expr (unsigned int uinteger_val);
expr_t *new_short_expr (short short_val);
expr_t *constant_expr (expr_t *var);
expr_t *new_bind_expr (expr_t *e1, expr_t *e2);
expr_t *new_self_expr (void);
expr_t *new_this_expr (void);
expr_t *new_move_expr (expr_t *e1, expr_t *e2, struct type_s *type);
void inc_users (expr_t *e);
void convert_name (expr_t *e);
expr_t *append_expr (expr_t *block, expr_t *e);
void print_expr (expr_t *e);
void convert_int (expr_t *e);
expr_t *test_expr (expr_t *e, int test);
expr_t *binary_expr (int op, expr_t *e1, expr_t *e2);
expr_t *asx_expr (int op, expr_t *e1, expr_t *e2);
expr_t *unary_expr (int op, expr_t *e);
expr_t *function_expr (expr_t *e1, expr_t *e2);
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struct function_s;
expr_t *return_expr (struct function_s *f, expr_t *e);
expr_t *conditional_expr (expr_t *cond, expr_t *e1, expr_t *e2);
expr_t *incop_expr (int op, expr_t *e, int postop);
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);
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)));
void warning (expr_t *e, const char *fmt, ...) __attribute__((format(printf, 2,3)));
void notice (expr_t *e, const char *fmt, ...) __attribute__((format(printf, 2,3)));
const char *get_op_string (int op);
extern int lineno_base;
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struct keywordarg_s;
expr_t *selector_expr (struct keywordarg_s *selector);
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 *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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#endif//__expr_h