2001-12-08 20:40:50 +00:00
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/*
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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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$Id$
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*/
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#ifndef __expr_h
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#define __expr_h
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2001-06-20 07:02:36 +00:00
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typedef enum {
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ex_error,
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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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2001-06-15 19:38:43 +00:00
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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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2001-06-25 22:11:20 +00:00
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typedef struct {
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statref_t *refs;
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dstatement_t *statement;
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const char *name;
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} ex_label_t;
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2001-06-26 03:33:01 +00:00
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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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2001-08-24 21:47:52 +00:00
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int is_call;
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} ex_block_t;
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2001-08-11 21:15:24 +00:00
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typedef struct {
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struct expr_s *expr;
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def_t *def;
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type_t *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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type_t *type;
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int abs;
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} ex_pointer_t;
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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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2001-06-26 16:23:21 +00:00
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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_block_t block;
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struct {
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int op;
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type_t *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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def_t *def;
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ex_temp_t temp;
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2001-11-13 08:58:54 +00:00
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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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2001-07-26 05:15:34 +00:00
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extern etype_t qc_types[];
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extern struct type_s *types[];
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extern expr_type expr_types[];
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2002-05-02 05:03:57 +00:00
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type_t *get_type (expr_t *e);
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etype_t extract_type (expr_t *e);
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2001-06-15 19:38:43 +00:00
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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_block_expr (void);
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2001-06-26 02:46:02 +00:00
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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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2001-08-11 21:15:24 +00:00
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expr_t *new_temp_def_expr (type_t *type);
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2001-11-13 18:49:27 +00:00
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expr_t *new_bind_expr (expr_t *e1, expr_t *e2);
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2002-01-21 19:03:29 +00:00
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expr_t *new_name_expr (const char *name);
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2001-06-26 03:33:01 +00:00
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pr_comp.h:
o add ev_uniteger to the types enum
o add opcodes for ifbe, ifb, ifae, ifa, jump, lt.ui, gt.ui, le.ui, ge.ui
progs.h:
o add uinteger accessors
pr_exec.c:
o implement ifbe, ifb, ifae, ifa, jump, lt.ui, gt.ui, le.ui, ge.ui
pr_opcode.c:
o add opcodes for ifbe, ifb, ifae, ifa, jump, lt.ui, gt.ui, le.ui, ge.ui
expr.h:
o prototype inc_users
qfcc.h:
o add externs for op_ifbe, op_ifb, op_ifae and op_ifa
emit.c:
o don't bother emiting an assignment to a temp def that's only used once
(ie, it's never read, only written to)
o support the new if* instructions
expr.c:
o support the new if* insructions
o dectect expression loops in append_expr
o support unsigned integers
o re-work temp def usage counting
pr_def.c
o debugging for temp def usage counts
pr_opcode.c:
o support the new if* instructions
qc-parse.y:
o provide defines for IFBE IFB IFAE IFA
switch.c:
o do binary searches for strings, floats and ints if there are more than
8 cases in a switch. Strings need more testing.
2001-11-09 00:58:16 +00:00
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void inc_users (expr_t *e);
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2002-01-21 19:18:41 +00:00
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void convert_name (expr_t *e);
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pr_comp.h:
o add ev_uniteger to the types enum
o add opcodes for ifbe, ifb, ifae, ifa, jump, lt.ui, gt.ui, le.ui, ge.ui
progs.h:
o add uinteger accessors
pr_exec.c:
o implement ifbe, ifb, ifae, ifa, jump, lt.ui, gt.ui, le.ui, ge.ui
pr_opcode.c:
o add opcodes for ifbe, ifb, ifae, ifa, jump, lt.ui, gt.ui, le.ui, ge.ui
expr.h:
o prototype inc_users
qfcc.h:
o add externs for op_ifbe, op_ifb, op_ifae and op_ifa
emit.c:
o don't bother emiting an assignment to a temp def that's only used once
(ie, it's never read, only written to)
o support the new if* instructions
expr.c:
o support the new if* insructions
o dectect expression loops in append_expr
o support unsigned integers
o re-work temp def usage counting
pr_def.c
o debugging for temp def usage counts
pr_opcode.c:
o support the new if* instructions
qc-parse.y:
o provide defines for IFBE IFB IFAE IFA
switch.c:
o do binary searches for strings, floats and ints if there are more than
8 cases in a switch. Strings need more testing.
2001-11-09 00:58:16 +00:00
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2001-06-26 03:33:01 +00:00
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expr_t *append_expr (expr_t *block, expr_t *e);
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2001-06-25 17:15:56 +00:00
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void print_expr (expr_t *e);
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2001-07-24 22:30:31 +00:00
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2001-07-24 23:53:35 +00:00
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void convert_int (expr_t *e);
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2001-07-24 22:30:31 +00:00
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expr_t *test_expr (expr_t *e, int test);
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expr_t *binary_expr (int op, expr_t *e1, expr_t *e2);
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2001-08-10 16:17:00 +00:00
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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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expr_t *return_expr (function_t *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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2001-08-20 06:22:28 +00:00
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expr_t *incop_expr (int op, expr_t *e, int postop);
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2001-11-15 00:46:36 +00:00
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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, type_t *t);
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expr_t *assign_expr (expr_t *e1, expr_t *e2);
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2002-01-17 19:32:04 +00:00
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expr_t *cast_expr (type_t *t, expr_t *e);
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2001-06-26 07:21:20 +00:00
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2002-01-18 08:26:37 +00:00
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void init_elements (def_t *def, expr_t *eles);
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2001-07-14 01:15:40 +00:00
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def_t *emit_statement (int line, opcode_t *op, def_t *var_a, def_t *var_b, def_t *var_c);
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2001-06-26 07:21:20 +00:00
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void emit_expr (expr_t *e);
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2001-06-28 21:26:40 +00:00
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2001-07-03 20:53:49 +00:00
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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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2001-07-14 01:15:40 +00:00
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2001-10-25 17:48:35 +00:00
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const char *get_op_string (int op);
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2001-07-14 01:15:40 +00:00
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extern int lineno_base;
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2002-05-08 23:12:49 +00:00
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struct keywordarg_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 (type_t *type);
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expr_t *message_expr (expr_t *receiver, struct keywordarg_s *message);
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2001-12-08 20:40:50 +00:00
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#endif//__expr_h
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