2 * Copyright (C) 2012, 2013
6 * Permission is hereby granted, free of charge, to any person obtaining a copy of
7 * this software and associated documentation files (the "Software"), to deal in
8 * the Software without restriction, including without limitation the rights to
9 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
10 * of the Software, and to permit persons to whom the Software is furnished to do
11 * so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31 /* beginning of locals */
32 #define PARSER_HT_LOCALS 2
34 #define PARSER_HT_SIZE 1024
35 #define TYPEDEF_HT_SIZE 16
37 enum parser_pot { POT_PAREN, POT_TERNARY1, POT_TERNARY2 };
42 ast_expression **globals;
43 ast_expression **fields;
44 ast_function **functions;
45 ast_value **imm_float;
46 ast_value **imm_string;
47 ast_value **imm_vector;
50 /* must be deleted first, they reference immediates and values */
51 ast_value **accessors;
53 ast_value *imm_float_zero;
54 ast_value *imm_float_one;
55 ast_value *imm_vector_zero;
57 ast_value *reserved_version;
62 ast_function *function;
64 /* All the labels the function defined...
65 * Should they be in ast_function instead?
70 const char **continues;
72 /* A list of hashtables for each scope */
78 /* same as above but for the spelling corrector */
79 correct_trie_t **correct_variables;
80 size_t ***correct_variables_score; /* vector of vector of size_t* */
82 /* not to be used directly, we use the hash table */
83 ast_expression **_locals;
85 ast_value **_typedefs;
86 size_t *_blocktypedefs;
89 /* we store the '=' operator info */
90 const oper_info *assign_op;
92 /* Keep track of our ternary vs parenthesis nesting state.
93 * If we reach a 'comma' operator in a ternary without a paren,
94 * we shall trigger -Wternary-precedence.
99 ast_value *const_vec[3];
104 /* collected information */
105 size_t max_param_count;
108 static ast_expression * const intrinsic_debug_typestring = (ast_expression*)0x1;
110 static void parser_enterblock(parser_t *parser);
111 static bool parser_leaveblock(parser_t *parser);
112 static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e);
113 static void parser_addglobal(parser_t *parser, const char *name, ast_expression *e);
114 static bool parse_typedef(parser_t *parser);
115 static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofields, int qualifier, ast_value *cached_typedef, bool noref, bool is_static, uint32_t qflags, char *vstring);
116 static ast_block* parse_block(parser_t *parser);
117 static bool parse_block_into(parser_t *parser, ast_block *block);
118 static bool parse_statement_or_block(parser_t *parser, ast_expression **out);
119 static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases);
120 static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels);
121 static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels);
122 static ast_value* parser_create_array_setter_proto(parser_t *parser, ast_value *array, const char *funcname);
123 static ast_value* parser_create_array_getter_proto(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname);
124 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
126 static void parseerror(parser_t *parser, const char *fmt, ...)
130 vcompile_error(parser->lex->tok.ctx, fmt, ap);
134 /* returns true if it counts as an error */
135 static bool GMQCC_WARN parsewarning(parser_t *parser, int warntype, const char *fmt, ...)
140 r = vcompile_warning(parser->lex->tok.ctx, warntype, fmt, ap);
145 static bool GMQCC_WARN genwarning(lex_ctx ctx, int warntype, const char *fmt, ...)
150 r = vcompile_warning(ctx, warntype, fmt, ap);
155 /**********************************************************************
156 * some maths used for constant folding
159 vector vec3_add(vector a, vector b)
168 vector vec3_sub(vector a, vector b)
177 qcfloat vec3_mulvv(vector a, vector b)
179 return (a.x * b.x + a.y * b.y + a.z * b.z);
182 vector vec3_mulvf(vector a, float b)
191 /**********************************************************************
195 bool parser_next(parser_t *parser)
197 /* lex_do kills the previous token */
198 parser->tok = lex_do(parser->lex);
199 if (parser->tok == TOKEN_EOF)
201 if (parser->tok >= TOKEN_ERROR) {
202 parseerror(parser, "lex error");
208 #define parser_tokval(p) ((p)->lex->tok.value)
209 #define parser_token(p) (&((p)->lex->tok))
210 #define parser_ctx(p) ((p)->lex->tok.ctx)
212 static ast_value* parser_const_float(parser_t *parser, double d)
217 for (i = 0; i < vec_size(parser->imm_float); ++i) {
218 const double compare = parser->imm_float[i]->constval.vfloat;
219 if (memcmp((const void*)&compare, (const void *)&d, sizeof(double)) == 0)
220 return parser->imm_float[i];
223 ctx = parser_ctx(parser);
225 memset(&ctx, 0, sizeof(ctx));
227 out = ast_value_new(ctx, "#IMMEDIATE", TYPE_FLOAT);
229 out->hasvalue = true;
230 out->constval.vfloat = d;
231 vec_push(parser->imm_float, out);
235 static ast_value* parser_const_float_0(parser_t *parser)
237 if (!parser->imm_float_zero)
238 parser->imm_float_zero = parser_const_float(parser, 0);
239 return parser->imm_float_zero;
242 static ast_value* parser_const_float_1(parser_t *parser)
244 if (!parser->imm_float_one)
245 parser->imm_float_one = parser_const_float(parser, 1);
246 return parser->imm_float_one;
249 static char *parser_strdup(const char *str)
252 /* actually dup empty strings */
253 char *out = (char*)mem_a(1);
257 return util_strdup(str);
260 static ast_value* parser_const_string(parser_t *parser, const char *str, bool dotranslate)
264 for (i = 0; i < vec_size(parser->imm_string); ++i) {
265 if (!strcmp(parser->imm_string[i]->constval.vstring, str))
266 return parser->imm_string[i];
270 snprintf(name, sizeof(name), "dotranslate_%lu", (unsigned long)(parser->translated++));
271 out = ast_value_new(parser_ctx(parser), name, TYPE_STRING);
273 out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_STRING);
275 out->hasvalue = true;
276 out->constval.vstring = parser_strdup(str);
277 vec_push(parser->imm_string, out);
281 static ast_value* parser_const_vector(parser_t *parser, vector v)
285 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
286 if (!memcmp(&parser->imm_vector[i]->constval.vvec, &v, sizeof(v)))
287 return parser->imm_vector[i];
289 out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_VECTOR);
291 out->hasvalue = true;
292 out->constval.vvec = v;
293 vec_push(parser->imm_vector, out);
297 static ast_value* parser_const_vector_f(parser_t *parser, float x, float y, float z)
303 return parser_const_vector(parser, v);
306 static ast_value* parser_const_vector_0(parser_t *parser)
308 if (!parser->imm_vector_zero)
309 parser->imm_vector_zero = parser_const_vector_f(parser, 0, 0, 0);
310 return parser->imm_vector_zero;
313 static ast_expression* parser_find_field(parser_t *parser, const char *name)
315 return ( ast_expression*)util_htget(parser->htfields, name);
318 static ast_expression* parser_find_label(parser_t *parser, const char *name)
321 for(i = 0; i < vec_size(parser->labels); i++)
322 if (!strcmp(parser->labels[i]->name, name))
323 return (ast_expression*)parser->labels[i];
327 static ast_expression* parser_find_global(parser_t *parser, const char *name)
329 return (ast_expression*)util_htget(parser->htglobals, name);
332 static ast_expression* parser_find_param(parser_t *parser, const char *name)
336 if (!parser->function)
338 fun = parser->function->vtype;
339 for (i = 0; i < vec_size(fun->expression.params); ++i) {
340 if (!strcmp(fun->expression.params[i]->name, name))
341 return (ast_expression*)(fun->expression.params[i]);
346 static ast_expression* parser_find_local(parser_t *parser, const char *name, size_t upto, bool *isparam)
351 hash = util_hthash(parser->htglobals, name);
354 for (i = vec_size(parser->variables); i > upto;) {
356 if ( (e = (ast_expression*)util_htgeth(parser->variables[i], name, hash)) )
360 return parser_find_param(parser, name);
363 static ast_expression* parser_find_var(parser_t *parser, const char *name)
367 v = parser_find_local(parser, name, 0, &dummy);
368 if (!v) v = parser_find_global(parser, name);
372 static ast_value* parser_find_typedef(parser_t *parser, const char *name, size_t upto)
376 hash = util_hthash(parser->typedefs[0], name);
378 for (i = vec_size(parser->typedefs); i > upto;) {
380 if ( (e = (ast_value*)util_htgeth(parser->typedefs[i], name, hash)) )
388 size_t etype; /* 0 = expression, others are operators */
392 ast_block *block; /* for commas and function calls */
401 #define SY_PAREN_EXPR '('
402 #define SY_PAREN_FUNC 'f'
403 #define SY_PAREN_INDEX '['
404 #define SY_PAREN_TERNARY '?'
406 static sy_elem syexp(lex_ctx ctx, ast_expression *v) {
417 static sy_elem syblock(lex_ctx ctx, ast_block *v) {
421 e.out = (ast_expression*)v;
428 static sy_elem syop(lex_ctx ctx, const oper_info *op) {
430 e.etype = 1 + (op - operators);
439 static sy_elem syparen(lex_ctx ctx, int p, size_t off) {
451 # define DEBUGSHUNTDO(x) x
453 # define DEBUGSHUNTDO(x)
456 /* With regular precedence rules, ent.foo[n] is the same as (ent.foo)[n],
457 * so we need to rotate it to become ent.(foo[n]).
459 static bool rotate_entfield_array_index_nodes(ast_expression **out)
461 ast_array_index *index;
462 ast_entfield *entfield;
466 ast_expression *entity;
468 lex_ctx ctx = ast_ctx(*out);
470 if (!ast_istype(*out, ast_array_index))
472 index = (ast_array_index*)*out;
474 if (!ast_istype(index->array, ast_entfield))
476 entfield = (ast_entfield*)index->array;
478 if (!ast_istype(entfield->field, ast_value))
480 field = (ast_value*)entfield->field;
483 entity = entfield->entity;
487 index = ast_array_index_new(ctx, (ast_expression*)field, sub);
488 entfield = ast_entfield_new(ctx, entity, (ast_expression*)index);
489 *out = (ast_expression*)entfield;
494 static bool immediate_is_true(lex_ctx ctx, ast_value *v)
496 switch (v->expression.vtype) {
498 return !!v->constval.vfloat;
500 return !!v->constval.vint;
502 if (OPTS_FLAG(CORRECT_LOGIC))
503 return v->constval.vvec.x &&
504 v->constval.vvec.y &&
507 return !!(v->constval.vvec.x);
509 if (!v->constval.vstring)
511 if (v->constval.vstring && OPTS_FLAG(TRUE_EMPTY_STRINGS))
513 return !!v->constval.vstring[0];
515 compile_error(ctx, "internal error: immediate_is_true on invalid type");
516 return !!v->constval.vfunc;
520 static bool parser_sy_apply_operator(parser_t *parser, shunt *sy)
524 ast_expression *out = NULL;
525 ast_expression *exprs[3];
526 ast_block *blocks[3];
527 ast_value *asvalue[3];
528 ast_binstore *asbinstore;
529 size_t i, assignop, addop, subop;
530 qcint generated_op = 0;
535 if (!vec_size(sy->ops)) {
536 parseerror(parser, "internal error: missing operator");
540 if (vec_last(sy->ops).paren) {
541 parseerror(parser, "unmatched parenthesis");
545 op = &operators[vec_last(sy->ops).etype - 1];
546 ctx = vec_last(sy->ops).ctx;
548 DEBUGSHUNTDO(con_out("apply %s\n", op->op));
550 if (vec_size(sy->out) < op->operands) {
551 compile_error(ctx, "internal error: not enough operands: %i (operator %s (%i))", vec_size(sy->out),
552 op->op, (int)op->id);
556 vec_shrinkby(sy->ops, 1);
558 /* op(:?) has no input and no output */
562 vec_shrinkby(sy->out, op->operands);
563 for (i = 0; i < op->operands; ++i) {
564 exprs[i] = sy->out[vec_size(sy->out)+i].out;
565 blocks[i] = sy->out[vec_size(sy->out)+i].block;
566 asvalue[i] = (ast_value*)exprs[i];
568 if (exprs[i]->expression.vtype == TYPE_NOEXPR &&
569 !(i != 0 && op->id == opid2('?',':')) &&
570 !(i == 1 && op->id == opid1('.')))
572 if (ast_istype(exprs[i], ast_label))
573 compile_error(ast_ctx(exprs[i]), "expected expression, got an unknown identifier");
575 compile_error(ast_ctx(exprs[i]), "not an expression");
576 (void)!compile_warning(ast_ctx(exprs[i]), WARN_DEBUG, "expression %u\n", (unsigned int)i);
580 if (blocks[0] && !vec_size(blocks[0]->exprs) && op->id != opid1(',')) {
581 compile_error(ctx, "internal error: operator cannot be applied on empty blocks");
585 #define NotSameType(T) \
586 (exprs[0]->expression.vtype != exprs[1]->expression.vtype || \
587 exprs[0]->expression.vtype != T)
588 #define CanConstFold1(A) \
589 (ast_istype((A), ast_value) && ((ast_value*)(A))->hasvalue && (((ast_value*)(A))->cvq == CV_CONST) &&\
590 (A)->expression.vtype != TYPE_FUNCTION)
591 #define CanConstFold(A, B) \
592 (CanConstFold1(A) && CanConstFold1(B))
593 #define ConstV(i) (asvalue[(i)]->constval.vvec)
594 #define ConstF(i) (asvalue[(i)]->constval.vfloat)
595 #define ConstS(i) (asvalue[(i)]->constval.vstring)
599 compile_error(ctx, "internal error: unhandled operator: %s (%i)", op->op, (int)op->id);
603 if (exprs[0]->expression.vtype == TYPE_VECTOR &&
604 exprs[1]->expression.vtype == TYPE_NOEXPR)
606 if (exprs[1] == (ast_expression*)parser->const_vec[0])
607 out = (ast_expression*)ast_member_new(ctx, exprs[0], 0, NULL);
608 else if (exprs[1] == (ast_expression*)parser->const_vec[1])
609 out = (ast_expression*)ast_member_new(ctx, exprs[0], 1, NULL);
610 else if (exprs[1] == (ast_expression*)parser->const_vec[2])
611 out = (ast_expression*)ast_member_new(ctx, exprs[0], 2, NULL);
613 compile_error(ctx, "access to invalid vector component");
617 else if (exprs[0]->expression.vtype == TYPE_ENTITY) {
618 if (exprs[1]->expression.vtype != TYPE_FIELD) {
619 compile_error(ast_ctx(exprs[1]), "type error: right hand of member-operand should be an entity-field");
622 out = (ast_expression*)ast_entfield_new(ctx, exprs[0], exprs[1]);
624 else if (exprs[0]->expression.vtype == TYPE_VECTOR) {
625 compile_error(ast_ctx(exprs[1]), "vectors cannot be accessed this way");
629 compile_error(ast_ctx(exprs[1]), "type error: member-of operator on something that is not an entity or vector");
635 if (exprs[0]->expression.vtype != TYPE_ARRAY &&
636 !(exprs[0]->expression.vtype == TYPE_FIELD &&
637 exprs[0]->expression.next->expression.vtype == TYPE_ARRAY))
639 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
640 compile_error(ast_ctx(exprs[0]), "cannot index value of type %s", ty1);
643 if (exprs[1]->expression.vtype != TYPE_FLOAT) {
644 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
645 compile_error(ast_ctx(exprs[1]), "index must be of type float, not %s", ty1);
648 out = (ast_expression*)ast_array_index_new(ctx, exprs[0], exprs[1]);
649 if (rotate_entfield_array_index_nodes(&out))
652 /* This is not broken in fteqcc anymore */
653 if (opts.standard != COMPILER_GMQCC) {
654 /* this error doesn't need to make us bail out */
655 (void)!parsewarning(parser, WARN_EXTENSIONS,
656 "accessing array-field members of an entity without parenthesis\n"
657 " -> this is an extension from -std=gmqcc");
665 if (!ast_block_add_expr(blocks[0], exprs[1]))
668 blocks[0] = ast_block_new(ctx);
669 if (!ast_block_add_expr(blocks[0], exprs[0]) ||
670 !ast_block_add_expr(blocks[0], exprs[1]))
675 if (!ast_block_set_type(blocks[0], exprs[1]))
678 vec_push(sy->out, syblock(ctx, blocks[0]));
685 switch (exprs[0]->expression.vtype) {
687 if (CanConstFold1(exprs[0]))
688 out = (ast_expression*)parser_const_float(parser, -ConstF(0));
690 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F,
691 (ast_expression*)parser_const_float_0(parser),
695 if (CanConstFold1(exprs[0]))
696 out = (ast_expression*)parser_const_vector_f(parser,
697 -ConstV(0).x, -ConstV(0).y, -ConstV(0).z);
699 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V,
700 (ast_expression*)parser_const_vector_0(parser),
704 compile_error(ctx, "invalid types used in expression: cannot negate type %s",
705 type_name[exprs[0]->expression.vtype]);
711 switch (exprs[0]->expression.vtype) {
713 if (CanConstFold1(exprs[0]))
714 out = (ast_expression*)parser_const_float(parser, !ConstF(0));
716 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
719 if (CanConstFold1(exprs[0]))
720 out = (ast_expression*)parser_const_float(parser,
721 (!ConstV(0).x && !ConstV(0).y && !ConstV(0).z));
723 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[0]);
726 if (CanConstFold1(exprs[0])) {
727 if (OPTS_FLAG(TRUE_EMPTY_STRINGS))
728 out = (ast_expression*)parser_const_float(parser, !ConstS(0));
730 out = (ast_expression*)parser_const_float(parser, !ConstS(0) || !*ConstS(0));
732 if (OPTS_FLAG(TRUE_EMPTY_STRINGS))
733 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
735 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[0]);
738 /* we don't constant-fold NOT for these types */
740 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_ENT, exprs[0]);
743 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_FNC, exprs[0]);
746 compile_error(ctx, "invalid types used in expression: cannot logically negate type %s",
747 type_name[exprs[0]->expression.vtype]);
753 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
754 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
756 compile_error(ctx, "invalid types used in expression: cannot add type %s and %s",
757 type_name[exprs[0]->expression.vtype],
758 type_name[exprs[1]->expression.vtype]);
761 switch (exprs[0]->expression.vtype) {
763 if (CanConstFold(exprs[0], exprs[1]))
765 out = (ast_expression*)parser_const_float(parser, ConstF(0) + ConstF(1));
768 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F, exprs[0], exprs[1]);
771 if (CanConstFold(exprs[0], exprs[1]))
772 out = (ast_expression*)parser_const_vector(parser, vec3_add(ConstV(0), ConstV(1)));
774 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_V, exprs[0], exprs[1]);
777 compile_error(ctx, "invalid types used in expression: cannot add type %s and %s",
778 type_name[exprs[0]->expression.vtype],
779 type_name[exprs[1]->expression.vtype]);
784 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
785 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
787 compile_error(ctx, "invalid types used in expression: cannot subtract type %s from %s",
788 type_name[exprs[1]->expression.vtype],
789 type_name[exprs[0]->expression.vtype]);
792 switch (exprs[0]->expression.vtype) {
794 if (CanConstFold(exprs[0], exprs[1]))
795 out = (ast_expression*)parser_const_float(parser, ConstF(0) - ConstF(1));
797 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F, exprs[0], exprs[1]);
800 if (CanConstFold(exprs[0], exprs[1]))
801 out = (ast_expression*)parser_const_vector(parser, vec3_sub(ConstV(0), ConstV(1)));
803 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V, exprs[0], exprs[1]);
806 compile_error(ctx, "invalid types used in expression: cannot subtract type %s from %s",
807 type_name[exprs[1]->expression.vtype],
808 type_name[exprs[0]->expression.vtype]);
813 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype &&
814 !(exprs[0]->expression.vtype == TYPE_VECTOR &&
815 exprs[1]->expression.vtype == TYPE_FLOAT) &&
816 !(exprs[1]->expression.vtype == TYPE_VECTOR &&
817 exprs[0]->expression.vtype == TYPE_FLOAT)
820 compile_error(ctx, "invalid types used in expression: cannot multiply types %s and %s",
821 type_name[exprs[1]->expression.vtype],
822 type_name[exprs[0]->expression.vtype]);
825 switch (exprs[0]->expression.vtype) {
827 if (exprs[1]->expression.vtype == TYPE_VECTOR)
829 if (CanConstFold(exprs[0], exprs[1]))
830 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(1), ConstF(0)));
832 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_FV, exprs[0], exprs[1]);
836 if (CanConstFold(exprs[0], exprs[1]))
837 out = (ast_expression*)parser_const_float(parser, ConstF(0) * ConstF(1));
839 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, exprs[0], exprs[1]);
843 if (exprs[1]->expression.vtype == TYPE_FLOAT)
845 if (CanConstFold(exprs[0], exprs[1]))
846 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(0), ConstF(1)));
848 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_VF, exprs[0], exprs[1]);
852 if (CanConstFold(exprs[0], exprs[1]))
853 out = (ast_expression*)parser_const_float(parser, vec3_mulvv(ConstV(0), ConstV(1)));
854 else if (OPTS_OPTIMIZATION(OPTIM_VECTOR_COMPONENTS) && CanConstFold1(exprs[0])) {
855 vector vec = ConstV(0);
856 if (!vec.y && !vec.z) { /* 'n 0 0' * v */
857 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
858 out = (ast_expression*)ast_member_new(ctx, exprs[1], 0, NULL);
859 out->expression.node.keep = false;
860 ((ast_member*)out)->rvalue = true;
862 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.x), out);
864 else if (!vec.x && !vec.z) { /* '0 n 0' * v */
865 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
866 out = (ast_expression*)ast_member_new(ctx, exprs[1], 1, NULL);
867 out->expression.node.keep = false;
868 ((ast_member*)out)->rvalue = true;
870 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.y), out);
872 else if (!vec.x && !vec.y) { /* '0 n 0' * v */
873 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
874 out = (ast_expression*)ast_member_new(ctx, exprs[1], 2, NULL);
875 out->expression.node.keep = false;
876 ((ast_member*)out)->rvalue = true;
878 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.z), out);
881 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
883 else if (OPTS_OPTIMIZATION(OPTIM_VECTOR_COMPONENTS) && CanConstFold1(exprs[1])) {
884 vector vec = ConstV(1);
885 if (!vec.y && !vec.z) { /* v * 'n 0 0' */
886 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
887 out = (ast_expression*)ast_member_new(ctx, exprs[0], 0, NULL);
888 out->expression.node.keep = false;
889 ((ast_member*)out)->rvalue = true;
891 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.x));
893 else if (!vec.x && !vec.z) { /* v * '0 n 0' */
894 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
895 out = (ast_expression*)ast_member_new(ctx, exprs[0], 1, NULL);
896 out->expression.node.keep = false;
897 ((ast_member*)out)->rvalue = true;
899 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.y));
901 else if (!vec.x && !vec.y) { /* v * '0 n 0' */
902 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
903 out = (ast_expression*)ast_member_new(ctx, exprs[0], 2, NULL);
904 out->expression.node.keep = false;
905 ((ast_member*)out)->rvalue = true;
907 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.z));
910 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
913 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
917 compile_error(ctx, "invalid types used in expression: cannot multiply types %s and %s",
918 type_name[exprs[1]->expression.vtype],
919 type_name[exprs[0]->expression.vtype]);
924 if (exprs[1]->expression.vtype != TYPE_FLOAT) {
925 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
926 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
927 compile_error(ctx, "invalid types used in expression: cannot divide tyeps %s and %s", ty1, ty2);
930 if (exprs[0]->expression.vtype == TYPE_FLOAT) {
931 if (CanConstFold(exprs[0], exprs[1]))
932 out = (ast_expression*)parser_const_float(parser, ConstF(0) / ConstF(1));
934 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F, exprs[0], exprs[1]);
936 else if (exprs[0]->expression.vtype == TYPE_VECTOR) {
937 if (CanConstFold(exprs[0], exprs[1]))
938 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(0), 1.0/ConstF(1)));
940 if (CanConstFold1(exprs[1])) {
941 out = (ast_expression*)parser_const_float(parser, 1.0 / ConstF(1));
943 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F,
944 (ast_expression*)parser_const_float_1(parser),
948 compile_error(ctx, "internal error: failed to generate division");
951 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_VF, exprs[0], out);
956 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
957 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
958 compile_error(ctx, "invalid types used in expression: cannot divide tyeps %s and %s", ty1, ty2);
964 compile_error(ctx, "qc does not have a modulo operator");
968 if (NotSameType(TYPE_FLOAT)) {
969 compile_error(ctx, "invalid types used in expression: cannot perform bit operations between types %s and %s",
970 type_name[exprs[0]->expression.vtype],
971 type_name[exprs[1]->expression.vtype]);
974 if (CanConstFold(exprs[0], exprs[1]))
975 out = (ast_expression*)parser_const_float(parser,
976 (op->id == opid1('|') ? (float)( ((qcint)ConstF(0)) | ((qcint)ConstF(1)) ) :
977 (float)( ((qcint)ConstF(0)) & ((qcint)ConstF(1)) ) ));
979 out = (ast_expression*)ast_binary_new(ctx,
980 (op->id == opid1('|') ? INSTR_BITOR : INSTR_BITAND),
984 compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-xor via ^");
989 if (CanConstFold(exprs[0], exprs[1]) && ! NotSameType(TYPE_FLOAT)) {
990 if (op->id == opid2('<','<'))
991 out = (ast_expression*)parser_const_float(parser, (double)((int)(ConstF(0)) << (int)(ConstF(1))));
993 out = (ast_expression*)parser_const_float(parser, (double)((int)(ConstF(0)) >> (int)(ConstF(1))));
996 case opid3('<','<','='):
997 case opid3('>','>','='):
998 compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-shifts");
1001 case opid2('|','|'):
1002 generated_op += 1; /* INSTR_OR */
1003 case opid2('&','&'):
1004 generated_op += INSTR_AND;
1005 if (CanConstFold(exprs[0], exprs[1]))
1007 if (OPTS_FLAG(PERL_LOGIC)) {
1008 if (immediate_is_true(ctx, asvalue[0]))
1012 out = (ast_expression*)parser_const_float(parser,
1013 ( (generated_op == INSTR_OR)
1014 ? (immediate_is_true(ctx, asvalue[0]) || immediate_is_true(ctx, asvalue[1]))
1015 : (immediate_is_true(ctx, asvalue[0]) && immediate_is_true(ctx, asvalue[1])) )
1020 if (OPTS_FLAG(PERL_LOGIC) && !ast_compare_type(exprs[0], exprs[1])) {
1021 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1022 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1023 compile_error(ctx, "invalid types for logical operation with -fperl-logic: %s and %s", ty1, ty2);
1026 for (i = 0; i < 2; ++i) {
1027 if (OPTS_FLAG(CORRECT_LOGIC) && exprs[i]->expression.vtype == TYPE_VECTOR) {
1028 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[i]);
1030 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
1032 exprs[i] = out; out = NULL;
1033 if (OPTS_FLAG(PERL_LOGIC)) {
1034 /* here we want to keep the right expressions' type */
1038 else if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && exprs[i]->expression.vtype == TYPE_STRING) {
1039 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[i]);
1041 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
1043 exprs[i] = out; out = NULL;
1044 if (OPTS_FLAG(PERL_LOGIC)) {
1045 /* here we want to keep the right expressions' type */
1050 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
1054 case opid2('?',':'):
1055 if (vec_last(parser->pot) != POT_TERNARY2) {
1056 compile_error(ctx, "mismatched parenthesis/ternary");
1059 vec_pop(parser->pot);
1060 if (!ast_compare_type(exprs[1], exprs[2])) {
1061 ast_type_to_string(exprs[1], ty1, sizeof(ty1));
1062 ast_type_to_string(exprs[2], ty2, sizeof(ty2));
1063 compile_error(ctx, "operands of ternary expression must have the same type, got %s and %s", ty1, ty2);
1066 if (CanConstFold1(exprs[0]))
1067 out = (immediate_is_true(ctx, asvalue[0]) ? exprs[1] : exprs[2]);
1069 out = (ast_expression*)ast_ternary_new(ctx, exprs[0], exprs[1], exprs[2]);
1073 generated_op += 1; /* INSTR_GT */
1075 generated_op += 1; /* INSTR_LT */
1076 case opid2('>', '='):
1077 generated_op += 1; /* INSTR_GE */
1078 case opid2('<', '='):
1079 generated_op += INSTR_LE;
1080 if (NotSameType(TYPE_FLOAT)) {
1081 compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
1082 type_name[exprs[0]->expression.vtype],
1083 type_name[exprs[1]->expression.vtype]);
1086 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
1088 case opid2('!', '='):
1089 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) {
1090 compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
1091 type_name[exprs[0]->expression.vtype],
1092 type_name[exprs[1]->expression.vtype]);
1095 out = (ast_expression*)ast_binary_new(ctx, type_ne_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]);
1097 case opid2('=', '='):
1098 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) {
1099 compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
1100 type_name[exprs[0]->expression.vtype],
1101 type_name[exprs[1]->expression.vtype]);
1104 out = (ast_expression*)ast_binary_new(ctx, type_eq_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]);
1108 if (ast_istype(exprs[0], ast_entfield)) {
1109 ast_expression *field = ((ast_entfield*)exprs[0])->field;
1110 if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) &&
1111 exprs[0]->expression.vtype == TYPE_FIELD &&
1112 exprs[0]->expression.next->expression.vtype == TYPE_VECTOR)
1114 assignop = type_storep_instr[TYPE_VECTOR];
1117 assignop = type_storep_instr[exprs[0]->expression.vtype];
1118 if (assignop == AINSTR_END || !ast_compare_type(field->expression.next, exprs[1]))
1120 ast_type_to_string(field->expression.next, ty1, sizeof(ty1));
1121 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1122 if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
1123 field->expression.next->expression.vtype == TYPE_FUNCTION &&
1124 exprs[1]->expression.vtype == TYPE_FUNCTION)
1126 (void)!compile_warning(ctx, WARN_ASSIGN_FUNCTION_TYPES,
1127 "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1130 compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1135 if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) &&
1136 exprs[0]->expression.vtype == TYPE_FIELD &&
1137 exprs[0]->expression.next->expression.vtype == TYPE_VECTOR)
1139 assignop = type_store_instr[TYPE_VECTOR];
1142 assignop = type_store_instr[exprs[0]->expression.vtype];
1145 if (assignop == AINSTR_END) {
1146 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1147 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1148 compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1150 else if (!ast_compare_type(exprs[0], exprs[1]))
1152 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1153 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1154 if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
1155 exprs[0]->expression.vtype == TYPE_FUNCTION &&
1156 exprs[1]->expression.vtype == TYPE_FUNCTION)
1158 (void)!compile_warning(ctx, WARN_ASSIGN_FUNCTION_TYPES,
1159 "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1162 compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1165 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1166 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1168 out = (ast_expression*)ast_store_new(ctx, assignop, exprs[0], exprs[1]);
1170 case opid3('+','+','P'):
1171 case opid3('-','-','P'):
1173 if (exprs[0]->expression.vtype != TYPE_FLOAT) {
1174 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1175 compile_error(ast_ctx(exprs[0]), "invalid type for prefix increment: %s", ty1);
1178 if (op->id == opid3('+','+','P'))
1179 addop = INSTR_ADD_F;
1181 addop = INSTR_SUB_F;
1182 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1183 compile_error(ast_ctx(exprs[0]), "assignment to constant `%s`", asvalue[0]->name);
1185 if (ast_istype(exprs[0], ast_entfield)) {
1186 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
1188 (ast_expression*)parser_const_float_1(parser));
1190 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
1192 (ast_expression*)parser_const_float_1(parser));
1195 case opid3('S','+','+'):
1196 case opid3('S','-','-'):
1198 if (exprs[0]->expression.vtype != TYPE_FLOAT) {
1199 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1200 compile_error(ast_ctx(exprs[0]), "invalid type for suffix increment: %s", ty1);
1203 if (op->id == opid3('S','+','+')) {
1204 addop = INSTR_ADD_F;
1205 subop = INSTR_SUB_F;
1207 addop = INSTR_SUB_F;
1208 subop = INSTR_ADD_F;
1210 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1211 compile_error(ast_ctx(exprs[0]), "assignment to constant `%s`", asvalue[0]->name);
1213 if (ast_istype(exprs[0], ast_entfield)) {
1214 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
1216 (ast_expression*)parser_const_float_1(parser));
1218 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
1220 (ast_expression*)parser_const_float_1(parser));
1224 out = (ast_expression*)ast_binary_new(ctx, subop,
1226 (ast_expression*)parser_const_float_1(parser));
1228 case opid2('+','='):
1229 case opid2('-','='):
1230 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
1231 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
1233 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1234 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1235 compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
1239 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1240 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1242 if (ast_istype(exprs[0], ast_entfield))
1243 assignop = type_storep_instr[exprs[0]->expression.vtype];
1245 assignop = type_store_instr[exprs[0]->expression.vtype];
1246 switch (exprs[0]->expression.vtype) {
1248 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1249 (op->id == opid2('+','=') ? INSTR_ADD_F : INSTR_SUB_F),
1250 exprs[0], exprs[1]);
1253 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1254 (op->id == opid2('+','=') ? INSTR_ADD_V : INSTR_SUB_V),
1255 exprs[0], exprs[1]);
1258 compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
1259 type_name[exprs[0]->expression.vtype],
1260 type_name[exprs[1]->expression.vtype]);
1264 case opid2('*','='):
1265 case opid2('/','='):
1266 if (exprs[1]->expression.vtype != TYPE_FLOAT ||
1267 !(exprs[0]->expression.vtype == TYPE_FLOAT ||
1268 exprs[0]->expression.vtype == TYPE_VECTOR))
1270 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1271 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1272 compile_error(ctx, "invalid types used in expression: %s and %s",
1276 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1277 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1279 if (ast_istype(exprs[0], ast_entfield))
1280 assignop = type_storep_instr[exprs[0]->expression.vtype];
1282 assignop = type_store_instr[exprs[0]->expression.vtype];
1283 switch (exprs[0]->expression.vtype) {
1285 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1286 (op->id == opid2('*','=') ? INSTR_MUL_F : INSTR_DIV_F),
1287 exprs[0], exprs[1]);
1290 if (op->id == opid2('*','=')) {
1291 out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
1292 exprs[0], exprs[1]);
1294 /* there's no DIV_VF */
1295 if (CanConstFold1(exprs[1])) {
1296 out = (ast_expression*)parser_const_float(parser, 1.0 / ConstF(1));
1298 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F,
1299 (ast_expression*)parser_const_float_1(parser),
1303 compile_error(ctx, "internal error: failed to generate division");
1306 out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
1311 compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
1312 type_name[exprs[0]->expression.vtype],
1313 type_name[exprs[1]->expression.vtype]);
1317 case opid2('&','='):
1318 case opid2('|','='):
1319 if (NotSameType(TYPE_FLOAT)) {
1320 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1321 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1322 compile_error(ctx, "invalid types used in expression: %s and %s",
1326 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1327 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1329 if (ast_istype(exprs[0], ast_entfield))
1330 assignop = type_storep_instr[exprs[0]->expression.vtype];
1332 assignop = type_store_instr[exprs[0]->expression.vtype];
1333 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1334 (op->id == opid2('&','=') ? INSTR_BITAND : INSTR_BITOR),
1335 exprs[0], exprs[1]);
1337 case opid3('&','~','='):
1338 /* This is like: a &= ~(b);
1339 * But QC has no bitwise-not, so we implement it as
1342 if (NotSameType(TYPE_FLOAT)) {
1343 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1344 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1345 compile_error(ctx, "invalid types used in expression: %s and %s",
1349 if (ast_istype(exprs[0], ast_entfield))
1350 assignop = type_storep_instr[exprs[0]->expression.vtype];
1352 assignop = type_store_instr[exprs[0]->expression.vtype];
1353 out = (ast_expression*)ast_binary_new(ctx, INSTR_BITAND, exprs[0], exprs[1]);
1356 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1357 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1359 asbinstore = ast_binstore_new(ctx, assignop, INSTR_SUB_F, exprs[0], out);
1360 asbinstore->keep_dest = true;
1361 out = (ast_expression*)asbinstore;
1367 compile_error(ctx, "failed to apply operand %s", op->op);
1371 DEBUGSHUNTDO(con_out("applied %s\n", op->op));
1372 vec_push(sy->out, syexp(ctx, out));
1376 static bool parser_close_call(parser_t *parser, shunt *sy)
1378 /* was a function call */
1379 ast_expression *fun;
1380 ast_value *funval = NULL;
1386 vec_shrinkby(sy->ops, 1);
1387 fid = sy->ops[vec_size(sy->ops)].off;
1389 /* out[fid] is the function
1390 * everything above is parameters...
1391 * 0 params = nothing
1392 * 1 params = ast_expression
1396 if (vec_size(sy->out) < 1 || vec_size(sy->out) <= fid) {
1397 parseerror(parser, "internal error: function call needs function and parameter list...");
1401 fun = sy->out[fid].out;
1403 if (fun == intrinsic_debug_typestring) {
1405 if (fid+2 != vec_size(sy->out) ||
1406 vec_last(sy->out).block)
1408 parseerror(parser, "intrinsic __builtin_debug_typestring requires exactly 1 parameter");
1411 ast_type_to_string(vec_last(sy->out).out, ty, sizeof(ty));
1412 ast_unref(vec_last(sy->out).out);
1413 sy->out[fid] = syexp(ast_ctx(vec_last(sy->out).out),
1414 (ast_expression*)parser_const_string(parser, ty, false));
1415 vec_shrinkby(sy->out, 1);
1419 call = ast_call_new(sy->ops[vec_size(sy->ops)].ctx, fun);
1421 parseerror(parser, "internal error: failed to create ast_call node");
1425 if (fid+1 == vec_size(sy->out)) {
1428 } else if (fid+2 == vec_size(sy->out)) {
1430 vec_shrinkby(sy->out, 1);
1431 params = sy->out[vec_size(sy->out)].block;
1435 vec_push(call->params, sy->out[vec_size(sy->out)].out);
1437 paramcount = vec_size(params->exprs);
1438 call->params = params->exprs;
1439 params->exprs = NULL;
1442 if (parser->max_param_count < paramcount)
1443 parser->max_param_count = paramcount;
1444 (void)!ast_call_check_types(call);
1446 parseerror(parser, "invalid function call");
1450 if (ast_istype(fun, ast_value)) {
1451 funval = (ast_value*)fun;
1452 if ((fun->expression.flags & AST_FLAG_VARIADIC) &&
1453 !(/*funval->cvq == CV_CONST && */ funval->hasvalue && funval->constval.vfunc->builtin))
1456 if (paramcount < vec_size(fun->expression.params))
1459 va_count = paramcount - vec_size(fun->expression.params);
1460 call->va_count = (ast_expression*)parser_const_float(parser, (double)va_count);
1464 /* overwrite fid, the function, with a call */
1465 sy->out[fid] = syexp(call->expression.node.context, (ast_expression*)call);
1467 if (fun->expression.vtype != TYPE_FUNCTION) {
1468 parseerror(parser, "not a function (%s)", type_name[fun->expression.vtype]);
1472 if (!fun->expression.next) {
1473 parseerror(parser, "could not determine function return type");
1476 ast_value *fval = (ast_istype(fun, ast_value) ? ((ast_value*)fun) : NULL);
1478 if (fun->expression.flags & AST_FLAG_DEPRECATED) {
1480 return !parsewarning(parser, WARN_DEPRECATED,
1481 "call to function (which is marked deprecated)\n",
1482 "-> it has been declared here: %s:%i",
1483 ast_ctx(fun).file, ast_ctx(fun).line);
1486 return !parsewarning(parser, WARN_DEPRECATED,
1487 "call to `%s` (which is marked deprecated)\n"
1488 "-> `%s` declared here: %s:%i",
1489 fval->name, fval->name, ast_ctx(fun).file, ast_ctx(fun).line);
1491 return !parsewarning(parser, WARN_DEPRECATED,
1492 "call to `%s` (deprecated: %s)\n"
1493 "-> `%s` declared here: %s:%i",
1494 fval->name, fval->desc, fval->name, ast_ctx(fun).file,
1498 if (vec_size(fun->expression.params) != paramcount &&
1499 !((fun->expression.flags & AST_FLAG_VARIADIC) &&
1500 vec_size(fun->expression.params) < paramcount))
1502 const char *fewmany = (vec_size(fun->expression.params) > paramcount) ? "few" : "many";
1504 return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT,
1505 "too %s parameters for call to %s: expected %i, got %i\n"
1506 " -> `%s` has been declared here: %s:%i",
1507 fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount,
1508 fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
1510 return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT,
1511 "too %s parameters for function call: expected %i, got %i\n"
1512 " -> it has been declared here: %s:%i",
1513 fewmany, (int)vec_size(fun->expression.params), (int)paramcount,
1514 ast_ctx(fun).file, (int)ast_ctx(fun).line);
1521 static bool parser_close_paren(parser_t *parser, shunt *sy, bool functions_only)
1523 if (!vec_size(sy->ops)) {
1524 parseerror(parser, "unmatched closing paren");
1527 /* this would for bit a + (x) because there are no operators inside (x)
1528 if (sy->ops[vec_size(sy->ops)-1].paren == 1) {
1529 parseerror(parser, "empty parenthesis expression");
1533 while (vec_size(sy->ops)) {
1534 if (vec_last(sy->ops).paren == SY_PAREN_FUNC) {
1535 if (!parser_close_call(parser, sy))
1539 if (vec_last(sy->ops).paren == SY_PAREN_EXPR) {
1540 if (!vec_size(sy->out)) {
1541 compile_error(vec_last(sy->ops).ctx, "empty paren expression");
1542 vec_shrinkby(sy->ops, 1);
1545 vec_shrinkby(sy->ops, 1);
1546 return !functions_only;
1548 if (vec_last(sy->ops).paren == SY_PAREN_INDEX) {
1551 /* pop off the parenthesis */
1552 vec_shrinkby(sy->ops, 1);
1553 /* then apply the index operator */
1554 if (!parser_sy_apply_operator(parser, sy))
1558 if (vec_last(sy->ops).paren == SY_PAREN_TERNARY) {
1561 if (vec_last(parser->pot) != POT_TERNARY1) {
1562 parseerror(parser, "mismatched colon in ternary expression (missing closing paren?)");
1565 vec_last(parser->pot) = POT_TERNARY2;
1566 /* pop off the parenthesis */
1567 vec_shrinkby(sy->ops, 1);
1570 if (!parser_sy_apply_operator(parser, sy))
1576 static void parser_reclassify_token(parser_t *parser)
1579 for (i = 0; i < operator_count; ++i) {
1580 if (!strcmp(parser_tokval(parser), operators[i].op)) {
1581 parser->tok = TOKEN_OPERATOR;
1587 static ast_expression* parse_vararg_do(parser_t *parser)
1589 ast_expression *idx, *out;
1591 ast_value *funtype = parser->function->vtype;
1593 lex_ctx ctx = parser_ctx(parser);
1595 if (!parser_next(parser) || parser->tok != '(') {
1596 parseerror(parser, "expected parameter index and type in parenthesis");
1599 if (!parser_next(parser)) {
1600 parseerror(parser, "error parsing parameter index");
1604 idx = parse_expression_leave(parser, true, false, false);
1608 if (parser->tok != ',') {
1610 parseerror(parser, "expected comma after parameter index");
1614 if (!parser_next(parser) || (parser->tok != TOKEN_IDENT && parser->tok != TOKEN_TYPENAME)) {
1616 parseerror(parser, "expected typename for vararg");
1620 typevar = parse_typename(parser, NULL, NULL);
1626 if (parser->tok != ')') {
1628 ast_delete(typevar);
1629 parseerror(parser, "expected closing paren");
1634 if (!parser_next(parser)) {
1636 ast_delete(typevar);
1637 parseerror(parser, "parse error after vararg");
1642 if (!parser->function->varargs) {
1644 ast_delete(typevar);
1645 parseerror(parser, "function has no variable argument list");
1649 if (funtype->expression.varparam &&
1650 !ast_compare_type((ast_expression*)typevar, (ast_expression*)funtype->expression.varparam))
1654 ast_type_to_string((ast_expression*)typevar, ty1, sizeof(ty1));
1655 ast_type_to_string((ast_expression*)funtype->expression.varparam, ty2, sizeof(ty2));
1656 compile_error(ast_ctx(typevar),
1657 "function was declared to take varargs of type `%s`, requested type is: %s",
1661 out = (ast_expression*)ast_array_index_new(ctx, (ast_expression*)(parser->function->varargs), idx);
1662 ast_type_adopt(out, typevar);
1663 ast_delete(typevar);
1667 static ast_expression* parse_vararg(parser_t *parser)
1669 bool old_noops = parser->lex->flags.noops;
1670 enum parser_pot *old_pot = parser->pot;
1672 ast_expression *out;
1675 parser->lex->flags.noops = true;
1676 out = parse_vararg_do(parser);
1678 parser->pot = old_pot;
1679 parser->lex->flags.noops = old_noops;
1683 static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels)
1685 ast_expression *expr = NULL;
1688 bool wantop = false;
1689 /* only warn once about an assignment in a truth value because the current code
1690 * would trigger twice on: if(a = b && ...), once for the if-truth-value, once for the && part
1692 bool warn_truthvalue = true;
1694 /* count the parens because an if starts with one, so the
1695 * end of a condition is an unmatched closing paren
1703 parser->lex->flags.noops = false;
1705 parser_reclassify_token(parser);
1709 if (OPTS_FLAG(TRANSLATABLE_STRINGS) &&
1710 parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "_"))
1712 /* a translatable string */
1716 parseerror(parser, "expected operator or end of statement, got constant");
1720 parser->lex->flags.noops = true;
1721 if (!parser_next(parser) || parser->tok != '(') {
1722 parseerror(parser, "use _(\"string\") to create a translatable string constant");
1725 parser->lex->flags.noops = false;
1726 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
1727 parseerror(parser, "expected a constant string in translatable-string extension");
1730 val = parser_const_string(parser, parser_tokval(parser), true);
1734 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1735 DEBUGSHUNTDO(con_out("push string\n"));
1737 if (!parser_next(parser) || parser->tok != ')') {
1738 parseerror(parser, "expected closing paren after translatable string");
1742 else if (parser->tok == TOKEN_DOTS)
1745 if (!OPTS_FLAG(VARIADIC_ARGS)) {
1746 parseerror(parser, "cannot access varargs (try -fvariadic-args)");
1750 parseerror(parser, "expected operator or end of statement");
1754 va = parse_vararg(parser);
1757 vec_push(sy.out, syexp(parser_ctx(parser), va));
1758 DEBUGSHUNTDO(con_out("push `...`\n"));
1760 else if (parser->tok == TOKEN_IDENT)
1762 const char *ctoken = parser_tokval(parser);
1763 ast_expression *prev = vec_size(sy.out) ? vec_last(sy.out).out : NULL;
1764 ast_expression *var;
1766 parseerror(parser, "expected operator or end of statement");
1770 /* a_vector.{x,y,z} */
1771 if (!vec_size(sy.ops) ||
1772 !vec_last(sy.ops).etype ||
1773 operators[vec_last(sy.ops).etype-1].id != opid1('.') ||
1774 (prev >= intrinsic_debug_typestring &&
1775 prev <= intrinsic_debug_typestring))
1777 /* When adding more intrinsics, fix the above condition */
1780 if (prev && prev->expression.vtype == TYPE_VECTOR && ctoken[0] >= 'x' && ctoken[0] <= 'z' && !ctoken[1])
1782 var = (ast_expression*)parser->const_vec[ctoken[0]-'x'];
1784 var = parser_find_var(parser, parser_tokval(parser));
1786 var = parser_find_field(parser, parser_tokval(parser));
1788 if (!var && with_labels) {
1789 var = (ast_expression*)parser_find_label(parser, parser_tokval(parser));
1791 ast_label *lbl = ast_label_new(parser_ctx(parser), parser_tokval(parser), true);
1792 var = (ast_expression*)lbl;
1793 vec_push(parser->labels, lbl);
1798 if (!strcmp(parser_tokval(parser), "__builtin_debug_typestring")) {
1799 var = (ast_expression*)intrinsic_debug_typestring;
1804 char *correct = NULL;
1807 * sometimes people use preprocessing predefs without enabling them
1808 * i've done this thousands of times already myself. Lets check for
1809 * it in the predef table. And diagnose it better :)
1811 if (!OPTS_FLAG(FTEPP_PREDEFS)) {
1812 for (i = 0; i < sizeof(ftepp_predefs)/sizeof(*ftepp_predefs); i++) {
1813 if (!strcmp(ftepp_predefs[i].name, parser_tokval(parser))) {
1814 parseerror(parser, "unexpected ident: %s (use -fftepp-predef to enable pre-defined macros)", parser_tokval(parser));
1821 * TODO: determine the best score for the identifier: be it
1822 * a variable, a field.
1824 * We should also consider adding correction tables for
1825 * other things as well.
1827 if (opts.correction) {
1829 correct_init(&corr);
1831 for (i = 0; i < vec_size(parser->correct_variables); i++) {
1832 correct = correct_str(&corr, parser->correct_variables[i], parser_tokval(parser));
1833 if (strcmp(correct, parser_tokval(parser))) {
1835 } else if (correct) {
1840 correct_free(&corr);
1843 parseerror(parser, "unexpected ident: %s (did you mean %s?)", parser_tokval(parser), correct);
1848 parseerror(parser, "unexpected ident: %s", parser_tokval(parser));
1854 if (ast_istype(var, ast_value)) {
1855 ((ast_value*)var)->uses++;
1857 else if (ast_istype(var, ast_member)) {
1858 ast_member *mem = (ast_member*)var;
1859 if (ast_istype(mem->owner, ast_value))
1860 ((ast_value*)(mem->owner))->uses++;
1863 vec_push(sy.out, syexp(parser_ctx(parser), var));
1864 DEBUGSHUNTDO(con_out("push %s\n", parser_tokval(parser)));
1866 else if (parser->tok == TOKEN_FLOATCONST) {
1869 parseerror(parser, "expected operator or end of statement, got constant");
1873 val = parser_const_float(parser, (parser_token(parser)->constval.f));
1876 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1877 DEBUGSHUNTDO(con_out("push %g\n", parser_token(parser)->constval.f));
1879 else if (parser->tok == TOKEN_INTCONST || parser->tok == TOKEN_CHARCONST) {
1882 parseerror(parser, "expected operator or end of statement, got constant");
1886 val = parser_const_float(parser, (double)(parser_token(parser)->constval.i));
1889 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1890 DEBUGSHUNTDO(con_out("push %i\n", parser_token(parser)->constval.i));
1892 else if (parser->tok == TOKEN_STRINGCONST) {
1895 parseerror(parser, "expected operator or end of statement, got constant");
1899 val = parser_const_string(parser, parser_tokval(parser), false);
1902 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1903 DEBUGSHUNTDO(con_out("push string\n"));
1905 else if (parser->tok == TOKEN_VECTORCONST) {
1908 parseerror(parser, "expected operator or end of statement, got constant");
1912 val = parser_const_vector(parser, parser_token(parser)->constval.v);
1915 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1916 DEBUGSHUNTDO(con_out("push '%g %g %g'\n",
1917 parser_token(parser)->constval.v.x,
1918 parser_token(parser)->constval.v.y,
1919 parser_token(parser)->constval.v.z));
1921 else if (parser->tok == '(') {
1922 parseerror(parser, "internal error: '(' should be classified as operator");
1925 else if (parser->tok == '[') {
1926 parseerror(parser, "internal error: '[' should be classified as operator");
1929 else if (parser->tok == ')') {
1931 DEBUGSHUNTDO(con_out("do[op] )\n"));
1935 /* we do expect an operator next */
1936 /* closing an opening paren */
1937 if (!parser_close_paren(parser, &sy, false))
1939 if (vec_last(parser->pot) != POT_PAREN) {
1940 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1943 vec_pop(parser->pot);
1945 DEBUGSHUNTDO(con_out("do[nop] )\n"));
1949 /* allowed for function calls */
1950 if (!parser_close_paren(parser, &sy, true))
1952 if (vec_last(parser->pot) != POT_PAREN) {
1953 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1956 vec_pop(parser->pot);
1960 else if (parser->tok == ']') {
1962 parseerror(parser, "operand expected");
1966 if (!parser_close_paren(parser, &sy, false))
1968 if (vec_last(parser->pot) != POT_PAREN) {
1969 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1972 vec_pop(parser->pot);
1975 else if (parser->tok == TOKEN_TYPENAME) {
1976 parseerror(parser, "unexpected typename");
1979 else if (parser->tok != TOKEN_OPERATOR) {
1981 parseerror(parser, "expected operator or end of statement");
1988 /* classify the operator */
1989 const oper_info *op;
1990 const oper_info *olast = NULL;
1992 for (o = 0; o < operator_count; ++o) {
1993 if (((!(operators[o].flags & OP_PREFIX) == !!wantop)) &&
1994 /* !(operators[o].flags & OP_SUFFIX) && / * remove this */
1995 !strcmp(parser_tokval(parser), operators[o].op))
2000 if (o == operator_count) {
2001 /* no operator found... must be the end of the statement */
2004 /* found an operator */
2007 /* when declaring variables, a comma starts a new variable */
2008 if (op->id == opid1(',') && !parens && stopatcomma) {
2009 /* fixup the token */
2014 /* a colon without a pervious question mark cannot be a ternary */
2015 if (!ternaries && op->id == opid2(':','?')) {
2020 if (op->id == opid1(',')) {
2021 if (vec_size(parser->pot) && vec_last(parser->pot) == POT_TERNARY2) {
2022 (void)!parsewarning(parser, WARN_TERNARY_PRECEDENCE, "suggesting parenthesis around ternary expression");
2026 if (vec_size(sy.ops) && !vec_last(sy.ops).paren)
2027 olast = &operators[vec_last(sy.ops).etype-1];
2029 #define IsAssignOp(x) (\
2030 (x) == opid1('=') || \
2031 (x) == opid2('+','=') || \
2032 (x) == opid2('-','=') || \
2033 (x) == opid2('*','=') || \
2034 (x) == opid2('/','=') || \
2035 (x) == opid2('%','=') || \
2036 (x) == opid2('&','=') || \
2037 (x) == opid2('|','=') || \
2038 (x) == opid3('&','~','=') \
2040 if (warn_truthvalue) {
2041 if ( (olast && IsAssignOp(olast->id) && (op->id == opid2('&','&') || op->id == opid2('|','|'))) ||
2042 (olast && IsAssignOp(op->id) && (olast->id == opid2('&','&') || olast->id == opid2('|','|'))) ||
2043 (truthvalue && !vec_size(parser->pot) && IsAssignOp(op->id))
2046 (void)!parsewarning(parser, WARN_PARENTHESIS, "suggesting parenthesis around assignment used as truth value");
2047 warn_truthvalue = false;
2052 (op->prec < olast->prec) ||
2053 (op->assoc == ASSOC_LEFT && op->prec <= olast->prec) ) )
2055 if (!parser_sy_apply_operator(parser, &sy))
2057 if (vec_size(sy.ops) && !vec_last(sy.ops).paren)
2058 olast = &operators[vec_last(sy.ops).etype-1];
2063 if (op->id == opid1('(')) {
2065 size_t sycount = vec_size(sy.out);
2066 DEBUGSHUNTDO(con_out("push [op] (\n"));
2067 ++parens; vec_push(parser->pot, POT_PAREN);
2068 /* we expected an operator, this is the function-call operator */
2069 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_FUNC, sycount-1));
2071 ++parens; vec_push(parser->pot, POT_PAREN);
2072 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_EXPR, 0));
2073 DEBUGSHUNTDO(con_out("push [nop] (\n"));
2076 } else if (op->id == opid1('[')) {
2078 parseerror(parser, "unexpected array subscript");
2081 ++parens; vec_push(parser->pot, POT_PAREN);
2082 /* push both the operator and the paren, this makes life easier */
2083 vec_push(sy.ops, syop(parser_ctx(parser), op));
2084 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_INDEX, 0));
2086 } else if (op->id == opid2('?',':')) {
2087 vec_push(sy.ops, syop(parser_ctx(parser), op));
2088 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_TERNARY, 0));
2091 vec_push(parser->pot, POT_TERNARY1);
2092 } else if (op->id == opid2(':','?')) {
2093 if (!vec_size(parser->pot)) {
2094 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
2097 if (vec_last(parser->pot) != POT_TERNARY1) {
2098 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
2101 if (!parser_close_paren(parser, &sy, false))
2103 vec_push(sy.ops, syop(parser_ctx(parser), op));
2107 DEBUGSHUNTDO(con_out("push operator %s\n", op->op));
2108 vec_push(sy.ops, syop(parser_ctx(parser), op));
2109 wantop = !!(op->flags & OP_SUFFIX);
2112 if (!parser_next(parser)) {
2115 if (parser->tok == ';' ||
2116 (!parens && (parser->tok == ']' || parser->tok == ')' || parser->tok == '}')))
2122 while (vec_size(sy.ops)) {
2123 if (!parser_sy_apply_operator(parser, &sy))
2127 parser->lex->flags.noops = true;
2128 if (!vec_size(sy.out)) {
2129 parseerror(parser, "empty expression");
2132 expr = sy.out[0].out;
2135 DEBUGSHUNTDO(con_out("shunt done\n"));
2136 if (vec_size(parser->pot)) {
2137 parseerror(parser, "internal error: vec_size(parser->pot) = %lu", (unsigned long)vec_size(parser->pot));
2140 vec_free(parser->pot);
2144 parser->lex->flags.noops = true;
2145 for (i = 0; i < vec_size(sy.out); ++i) {
2147 ast_unref(sy.out[i].out);
2154 static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels)
2156 ast_expression *e = parse_expression_leave(parser, stopatcomma, false, with_labels);
2159 if (parser->tok != ';') {
2160 parseerror(parser, "semicolon expected after expression");
2164 if (!parser_next(parser)) {
2171 static void parser_enterblock(parser_t *parser)
2173 vec_push(parser->variables, util_htnew(PARSER_HT_SIZE));
2174 vec_push(parser->_blocklocals, vec_size(parser->_locals));
2175 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
2176 vec_push(parser->_blocktypedefs, vec_size(parser->_typedefs));
2177 vec_push(parser->_block_ctx, parser_ctx(parser));
2180 vec_push(parser->correct_variables, correct_trie_new());
2181 vec_push(parser->correct_variables_score, NULL);
2184 static bool parser_leaveblock(parser_t *parser)
2187 size_t locals, typedefs;
2189 if (vec_size(parser->variables) <= PARSER_HT_LOCALS) {
2190 parseerror(parser, "internal error: parser_leaveblock with no block");
2194 util_htdel(vec_last(parser->variables));
2195 correct_del(vec_last(parser->correct_variables), vec_last(parser->correct_variables_score));
2197 vec_pop(parser->variables);
2198 vec_pop(parser->correct_variables);
2199 vec_pop(parser->correct_variables_score);
2200 if (!vec_size(parser->_blocklocals)) {
2201 parseerror(parser, "internal error: parser_leaveblock with no block (2)");
2205 locals = vec_last(parser->_blocklocals);
2206 vec_pop(parser->_blocklocals);
2207 while (vec_size(parser->_locals) != locals) {
2208 ast_expression *e = vec_last(parser->_locals);
2209 ast_value *v = (ast_value*)e;
2210 vec_pop(parser->_locals);
2211 if (ast_istype(e, ast_value) && !v->uses) {
2212 if (compile_warning(ast_ctx(v), WARN_UNUSED_VARIABLE, "unused variable: `%s`", v->name))
2217 typedefs = vec_last(parser->_blocktypedefs);
2218 while (vec_size(parser->_typedefs) != typedefs) {
2219 ast_delete(vec_last(parser->_typedefs));
2220 vec_pop(parser->_typedefs);
2222 util_htdel(vec_last(parser->typedefs));
2223 vec_pop(parser->typedefs);
2225 vec_pop(parser->_block_ctx);
2230 static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e)
2232 vec_push(parser->_locals, e);
2233 util_htset(vec_last(parser->variables), name, (void*)e);
2237 vec_last(parser->correct_variables),
2238 &vec_last(parser->correct_variables_score),
2243 static void parser_addglobal(parser_t *parser, const char *name, ast_expression *e)
2245 vec_push(parser->globals, e);
2246 util_htset(parser->htglobals, name, e);
2250 parser->correct_variables[0],
2251 &parser->correct_variables_score[0],
2256 static ast_expression* process_condition(parser_t *parser, ast_expression *cond, bool *_ifnot)
2260 ast_expression *prev;
2262 if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && cond->expression.vtype == TYPE_STRING)
2265 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_S, cond);
2268 parseerror(parser, "internal error: failed to process condition");
2273 else if (OPTS_FLAG(CORRECT_LOGIC) && cond->expression.vtype == TYPE_VECTOR)
2275 /* vector types need to be cast to true booleans */
2276 ast_binary *bin = (ast_binary*)cond;
2277 if (!OPTS_FLAG(PERL_LOGIC) || !ast_istype(cond, ast_binary) || !(bin->op == INSTR_AND || bin->op == INSTR_OR))
2279 /* in perl-logic, AND and OR take care of the -fcorrect-logic */
2281 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_V, cond);
2284 parseerror(parser, "internal error: failed to process condition");
2291 unary = (ast_unary*)cond;
2292 while (ast_istype(cond, ast_unary) && unary->op == INSTR_NOT_F)
2294 cond = unary->operand;
2295 unary->operand = NULL;
2298 unary = (ast_unary*)cond;
2302 parseerror(parser, "internal error: failed to process condition");
2304 if (ifnot) *_ifnot = !*_ifnot;
2308 static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out)
2311 ast_expression *cond, *ontrue = NULL, *onfalse = NULL;
2314 lex_ctx ctx = parser_ctx(parser);
2316 (void)block; /* not touching */
2318 /* skip the 'if', parse an optional 'not' and check for an opening paren */
2319 if (!parser_next(parser)) {
2320 parseerror(parser, "expected condition or 'not'");
2323 if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "not")) {
2325 if (!parser_next(parser)) {
2326 parseerror(parser, "expected condition in parenthesis");
2330 if (parser->tok != '(') {
2331 parseerror(parser, "expected 'if' condition in parenthesis");
2334 /* parse into the expression */
2335 if (!parser_next(parser)) {
2336 parseerror(parser, "expected 'if' condition after opening paren");
2339 /* parse the condition */
2340 cond = parse_expression_leave(parser, false, true, false);
2344 if (parser->tok != ')') {
2345 parseerror(parser, "expected closing paren after 'if' condition");
2349 /* parse into the 'then' branch */
2350 if (!parser_next(parser)) {
2351 parseerror(parser, "expected statement for on-true branch of 'if'");
2355 if (!parse_statement_or_block(parser, &ontrue)) {
2360 ontrue = (ast_expression*)ast_block_new(parser_ctx(parser));
2361 /* check for an else */
2362 if (!strcmp(parser_tokval(parser), "else")) {
2363 /* parse into the 'else' branch */
2364 if (!parser_next(parser)) {
2365 parseerror(parser, "expected on-false branch after 'else'");
2370 if (!parse_statement_or_block(parser, &onfalse)) {
2377 cond = process_condition(parser, cond, &ifnot);
2379 if (ontrue) ast_delete(ontrue);
2380 if (onfalse) ast_delete(onfalse);
2385 ifthen = ast_ifthen_new(ctx, cond, onfalse, ontrue);
2387 ifthen = ast_ifthen_new(ctx, cond, ontrue, onfalse);
2388 *out = (ast_expression*)ifthen;
2392 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out);
2393 static bool parse_while(parser_t *parser, ast_block *block, ast_expression **out)
2398 /* skip the 'while' and get the body */
2399 if (!parser_next(parser)) {
2400 if (OPTS_FLAG(LOOP_LABELS))
2401 parseerror(parser, "expected loop label or 'while' condition in parenthesis");
2403 parseerror(parser, "expected 'while' condition in parenthesis");
2407 if (parser->tok == ':') {
2408 if (!OPTS_FLAG(LOOP_LABELS))
2409 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2410 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2411 parseerror(parser, "expected loop label");
2414 label = util_strdup(parser_tokval(parser));
2415 if (!parser_next(parser)) {
2417 parseerror(parser, "expected 'while' condition in parenthesis");
2422 if (parser->tok != '(') {
2423 parseerror(parser, "expected 'while' condition in parenthesis");
2427 vec_push(parser->breaks, label);
2428 vec_push(parser->continues, label);
2430 rv = parse_while_go(parser, block, out);
2433 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2434 parseerror(parser, "internal error: label stack corrupted");
2440 vec_pop(parser->breaks);
2441 vec_pop(parser->continues);
2446 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out)
2449 ast_expression *cond, *ontrue;
2453 lex_ctx ctx = parser_ctx(parser);
2455 (void)block; /* not touching */
2457 /* parse into the expression */
2458 if (!parser_next(parser)) {
2459 parseerror(parser, "expected 'while' condition after opening paren");
2462 /* parse the condition */
2463 cond = parse_expression_leave(parser, false, true, false);
2467 if (parser->tok != ')') {
2468 parseerror(parser, "expected closing paren after 'while' condition");
2472 /* parse into the 'then' branch */
2473 if (!parser_next(parser)) {
2474 parseerror(parser, "expected while-loop body");
2478 if (!parse_statement_or_block(parser, &ontrue)) {
2483 cond = process_condition(parser, cond, &ifnot);
2488 aloop = ast_loop_new(ctx, NULL, cond, ifnot, NULL, false, NULL, ontrue);
2489 *out = (ast_expression*)aloop;
2493 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out);
2494 static bool parse_dowhile(parser_t *parser, ast_block *block, ast_expression **out)
2499 /* skip the 'do' and get the body */
2500 if (!parser_next(parser)) {
2501 if (OPTS_FLAG(LOOP_LABELS))
2502 parseerror(parser, "expected loop label or body");
2504 parseerror(parser, "expected loop body");
2508 if (parser->tok == ':') {
2509 if (!OPTS_FLAG(LOOP_LABELS))
2510 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2511 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2512 parseerror(parser, "expected loop label");
2515 label = util_strdup(parser_tokval(parser));
2516 if (!parser_next(parser)) {
2518 parseerror(parser, "expected loop body");
2523 vec_push(parser->breaks, label);
2524 vec_push(parser->continues, label);
2526 rv = parse_dowhile_go(parser, block, out);
2529 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2530 parseerror(parser, "internal error: label stack corrupted");
2536 vec_pop(parser->breaks);
2537 vec_pop(parser->continues);
2542 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out)
2545 ast_expression *cond, *ontrue;
2549 lex_ctx ctx = parser_ctx(parser);
2551 (void)block; /* not touching */
2553 if (!parse_statement_or_block(parser, &ontrue))
2556 /* expect the "while" */
2557 if (parser->tok != TOKEN_KEYWORD ||
2558 strcmp(parser_tokval(parser), "while"))
2560 parseerror(parser, "expected 'while' and condition");
2565 /* skip the 'while' and check for opening paren */
2566 if (!parser_next(parser) || parser->tok != '(') {
2567 parseerror(parser, "expected 'while' condition in parenthesis");
2571 /* parse into the expression */
2572 if (!parser_next(parser)) {
2573 parseerror(parser, "expected 'while' condition after opening paren");
2577 /* parse the condition */
2578 cond = parse_expression_leave(parser, false, true, false);
2582 if (parser->tok != ')') {
2583 parseerror(parser, "expected closing paren after 'while' condition");
2589 if (!parser_next(parser) || parser->tok != ';') {
2590 parseerror(parser, "expected semicolon after condition");
2596 if (!parser_next(parser)) {
2597 parseerror(parser, "parse error");
2603 cond = process_condition(parser, cond, &ifnot);
2608 aloop = ast_loop_new(ctx, NULL, NULL, false, cond, ifnot, NULL, ontrue);
2609 *out = (ast_expression*)aloop;
2613 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out);
2614 static bool parse_for(parser_t *parser, ast_block *block, ast_expression **out)
2619 /* skip the 'for' and check for opening paren */
2620 if (!parser_next(parser)) {
2621 if (OPTS_FLAG(LOOP_LABELS))
2622 parseerror(parser, "expected loop label or 'for' expressions in parenthesis");
2624 parseerror(parser, "expected 'for' expressions in parenthesis");
2628 if (parser->tok == ':') {
2629 if (!OPTS_FLAG(LOOP_LABELS))
2630 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2631 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2632 parseerror(parser, "expected loop label");
2635 label = util_strdup(parser_tokval(parser));
2636 if (!parser_next(parser)) {
2638 parseerror(parser, "expected 'for' expressions in parenthesis");
2643 if (parser->tok != '(') {
2644 parseerror(parser, "expected 'for' expressions in parenthesis");
2648 vec_push(parser->breaks, label);
2649 vec_push(parser->continues, label);
2651 rv = parse_for_go(parser, block, out);
2654 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2655 parseerror(parser, "internal error: label stack corrupted");
2661 vec_pop(parser->breaks);
2662 vec_pop(parser->continues);
2666 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out)
2669 ast_expression *initexpr, *cond, *increment, *ontrue;
2675 lex_ctx ctx = parser_ctx(parser);
2677 parser_enterblock(parser);
2684 /* parse into the expression */
2685 if (!parser_next(parser)) {
2686 parseerror(parser, "expected 'for' initializer after opening paren");
2691 if (parser->tok == TOKEN_IDENT)
2692 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
2694 if (typevar || parser->tok == TOKEN_TYPENAME) {
2696 if (opts.standard != COMPILER_GMQCC) {
2697 if (parsewarning(parser, WARN_EXTENSIONS,
2698 "current standard does not allow variable declarations in for-loop initializers"))
2702 if (!parse_variable(parser, block, true, CV_VAR, typevar, false, false, 0, NULL))
2705 else if (parser->tok != ';')
2707 initexpr = parse_expression_leave(parser, false, false, false);
2712 /* move on to condition */
2713 if (parser->tok != ';') {
2714 parseerror(parser, "expected semicolon after for-loop initializer");
2717 if (!parser_next(parser)) {
2718 parseerror(parser, "expected for-loop condition");
2722 /* parse the condition */
2723 if (parser->tok != ';') {
2724 cond = parse_expression_leave(parser, false, true, false);
2729 /* move on to incrementor */
2730 if (parser->tok != ';') {
2731 parseerror(parser, "expected semicolon after for-loop initializer");
2734 if (!parser_next(parser)) {
2735 parseerror(parser, "expected for-loop condition");
2739 /* parse the incrementor */
2740 if (parser->tok != ')') {
2741 increment = parse_expression_leave(parser, false, false, false);
2744 if (!ast_side_effects(increment)) {
2745 if (genwarning(ast_ctx(increment), WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
2751 if (parser->tok != ')') {
2752 parseerror(parser, "expected closing paren after 'for-loop' incrementor");
2755 /* parse into the 'then' branch */
2756 if (!parser_next(parser)) {
2757 parseerror(parser, "expected for-loop body");
2760 if (!parse_statement_or_block(parser, &ontrue))
2764 cond = process_condition(parser, cond, &ifnot);
2768 aloop = ast_loop_new(ctx, initexpr, cond, ifnot, NULL, false, increment, ontrue);
2769 *out = (ast_expression*)aloop;
2771 if (!parser_leaveblock(parser))
2775 if (initexpr) ast_delete(initexpr);
2776 if (cond) ast_delete(cond);
2777 if (increment) ast_delete(increment);
2778 (void)!parser_leaveblock(parser);
2782 static bool parse_return(parser_t *parser, ast_block *block, ast_expression **out)
2784 ast_expression *exp = NULL;
2785 ast_return *ret = NULL;
2786 ast_value *expected = parser->function->vtype;
2788 lex_ctx ctx = parser_ctx(parser);
2790 (void)block; /* not touching */
2792 if (!parser_next(parser)) {
2793 parseerror(parser, "expected return expression");
2797 if (parser->tok != ';') {
2798 exp = parse_expression(parser, false, false);
2802 if (exp->expression.vtype != TYPE_NIL &&
2803 exp->expression.vtype != expected->expression.next->expression.vtype)
2805 parseerror(parser, "return with invalid expression");
2808 ret = ast_return_new(ctx, exp);
2814 if (!parser_next(parser))
2815 parseerror(parser, "parse error");
2816 if (expected->expression.next->expression.vtype != TYPE_VOID) {
2817 (void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value");
2819 ret = ast_return_new(ctx, NULL);
2821 *out = (ast_expression*)ret;
2825 static bool parse_break_continue(parser_t *parser, ast_block *block, ast_expression **out, bool is_continue)
2828 unsigned int levels = 0;
2829 lex_ctx ctx = parser_ctx(parser);
2830 const char **loops = (is_continue ? parser->continues : parser->breaks);
2832 (void)block; /* not touching */
2833 if (!parser_next(parser)) {
2834 parseerror(parser, "expected semicolon or loop label");
2838 if (!vec_size(loops)) {
2840 parseerror(parser, "`continue` can only be used inside loops");
2842 parseerror(parser, "`break` can only be used inside loops or switches");
2845 if (parser->tok == TOKEN_IDENT) {
2846 if (!OPTS_FLAG(LOOP_LABELS))
2847 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2848 i = vec_size(loops);
2850 if (loops[i] && !strcmp(loops[i], parser_tokval(parser)))
2853 parseerror(parser, "no such loop to %s: `%s`",
2854 (is_continue ? "continue" : "break out of"),
2855 parser_tokval(parser));
2860 if (!parser_next(parser)) {
2861 parseerror(parser, "expected semicolon");
2866 if (parser->tok != ';') {
2867 parseerror(parser, "expected semicolon");
2871 if (!parser_next(parser))
2872 parseerror(parser, "parse error");
2874 *out = (ast_expression*)ast_breakcont_new(ctx, is_continue, levels);
2878 /* returns true when it was a variable qualifier, false otherwise!
2879 * on error, cvq is set to CV_WRONG
2881 static bool parse_qualifiers(parser_t *parser, bool with_local, int *cvq, bool *noref, bool *is_static, uint32_t *_flags, char **message)
2883 bool had_const = false;
2884 bool had_var = false;
2885 bool had_noref = false;
2886 bool had_attrib = false;
2887 bool had_static = false;
2892 if (parser->tok == TOKEN_ATTRIBUTE_OPEN) {
2894 /* parse an attribute */
2895 if (!parser_next(parser)) {
2896 parseerror(parser, "expected attribute after `[[`");
2900 if (!strcmp(parser_tokval(parser), "noreturn")) {
2901 flags |= AST_FLAG_NORETURN;
2902 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2903 parseerror(parser, "`noreturn` attribute has no parameters, expected `]]`");
2908 else if (!strcmp(parser_tokval(parser), "noref")) {
2910 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2911 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2916 else if (!strcmp(parser_tokval(parser), "inline")) {
2917 flags |= AST_FLAG_INLINE;
2918 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2919 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2926 else if (!strcmp(parser_tokval(parser), "deprecated") && !(flags & AST_FLAG_DEPRECATED)) {
2927 flags |= AST_FLAG_DEPRECATED;
2930 if (!parser_next(parser)) {
2931 parseerror(parser, "parse error in attribute");
2935 if (parser->tok == '(') {
2936 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
2937 parseerror(parser, "`deprecated` attribute missing parameter");
2941 *message = util_strdup(parser_tokval(parser));
2943 if (!parser_next(parser)) {
2944 parseerror(parser, "parse error in attribute");
2948 if(parser->tok != ')') {
2949 parseerror(parser, "`deprecated` attribute expected `)` after parameter");
2953 if (!parser_next(parser)) {
2954 parseerror(parser, "parse error in attribute");
2959 if (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2960 parseerror(parser, "`deprecated` attribute expected `]]`");
2963 if (*message) mem_d(*message);
2971 /* Skip tokens until we hit a ]] */
2972 (void)!parsewarning(parser, WARN_UNKNOWN_ATTRIBUTE, "unknown attribute starting with `%s`", parser_tokval(parser));
2973 while (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2974 if (!parser_next(parser)) {
2975 parseerror(parser, "error inside attribute");
2982 else if (with_local && !strcmp(parser_tokval(parser), "static"))
2984 else if (!strcmp(parser_tokval(parser), "const"))
2986 else if (!strcmp(parser_tokval(parser), "var"))
2988 else if (with_local && !strcmp(parser_tokval(parser), "local"))
2990 else if (!strcmp(parser_tokval(parser), "noref"))
2992 else if (!had_const && !had_var && !had_noref && !had_attrib && !had_static && !flags) {
2997 if (!parser_next(parser))
3007 *is_static = had_static;
3011 parseerror(parser, "parse error after variable qualifier");
3016 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out);
3017 static bool parse_switch(parser_t *parser, ast_block *block, ast_expression **out)
3022 /* skip the 'while' and get the body */
3023 if (!parser_next(parser)) {
3024 if (OPTS_FLAG(LOOP_LABELS))
3025 parseerror(parser, "expected loop label or 'switch' operand in parenthesis");
3027 parseerror(parser, "expected 'switch' operand in parenthesis");
3031 if (parser->tok == ':') {
3032 if (!OPTS_FLAG(LOOP_LABELS))
3033 parseerror(parser, "labeled loops not activated, try using -floop-labels");
3034 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
3035 parseerror(parser, "expected loop label");
3038 label = util_strdup(parser_tokval(parser));
3039 if (!parser_next(parser)) {
3041 parseerror(parser, "expected 'switch' operand in parenthesis");
3046 if (parser->tok != '(') {
3047 parseerror(parser, "expected 'switch' operand in parenthesis");
3051 vec_push(parser->breaks, label);
3053 rv = parse_switch_go(parser, block, out);
3056 if (vec_last(parser->breaks) != label) {
3057 parseerror(parser, "internal error: label stack corrupted");
3063 vec_pop(parser->breaks);
3068 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out)
3070 ast_expression *operand;
3073 ast_switch *switchnode;
3074 ast_switch_case swcase;
3077 bool noref, is_static;
3078 uint32_t qflags = 0;
3080 lex_ctx ctx = parser_ctx(parser);
3082 (void)block; /* not touching */
3085 /* parse into the expression */
3086 if (!parser_next(parser)) {
3087 parseerror(parser, "expected switch operand");
3090 /* parse the operand */
3091 operand = parse_expression_leave(parser, false, false, false);
3095 switchnode = ast_switch_new(ctx, operand);
3098 if (parser->tok != ')') {
3099 ast_delete(switchnode);
3100 parseerror(parser, "expected closing paren after 'switch' operand");
3104 /* parse over the opening paren */
3105 if (!parser_next(parser) || parser->tok != '{') {
3106 ast_delete(switchnode);
3107 parseerror(parser, "expected list of cases");
3111 if (!parser_next(parser)) {
3112 ast_delete(switchnode);
3113 parseerror(parser, "expected 'case' or 'default'");
3117 /* new block; allow some variables to be declared here */
3118 parser_enterblock(parser);
3121 if (parser->tok == TOKEN_IDENT)
3122 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
3123 if (typevar || parser->tok == TOKEN_TYPENAME) {
3124 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL)) {
3125 ast_delete(switchnode);
3130 if (parse_qualifiers(parser, true, &cvq, &noref, &is_static, &qflags, NULL))
3132 if (cvq == CV_WRONG) {
3133 ast_delete(switchnode);
3136 if (!parse_variable(parser, block, false, cvq, NULL, noref, is_static, qflags, NULL)) {
3137 ast_delete(switchnode);
3146 while (parser->tok != '}') {
3147 ast_block *caseblock;
3149 if (!strcmp(parser_tokval(parser), "case")) {
3150 if (!parser_next(parser)) {
3151 ast_delete(switchnode);
3152 parseerror(parser, "expected expression for case");
3155 swcase.value = parse_expression_leave(parser, false, false, false);
3156 if (!swcase.value) {
3157 ast_delete(switchnode);
3158 parseerror(parser, "expected expression for case");
3161 if (!OPTS_FLAG(RELAXED_SWITCH)) {
3162 if (!ast_istype(swcase.value, ast_value)) { /* || ((ast_value*)swcase.value)->cvq != CV_CONST) { */
3163 parseerror(parser, "case on non-constant values need to be explicitly enabled via -frelaxed-switch");
3169 else if (!strcmp(parser_tokval(parser), "default")) {
3170 swcase.value = NULL;
3171 if (!parser_next(parser)) {
3172 ast_delete(switchnode);
3173 parseerror(parser, "expected colon");
3178 ast_delete(switchnode);
3179 parseerror(parser, "expected 'case' or 'default'");
3183 /* Now the colon and body */
3184 if (parser->tok != ':') {
3185 if (swcase.value) ast_unref(swcase.value);
3186 ast_delete(switchnode);
3187 parseerror(parser, "expected colon");
3191 if (!parser_next(parser)) {
3192 if (swcase.value) ast_unref(swcase.value);
3193 ast_delete(switchnode);
3194 parseerror(parser, "expected statements or case");
3197 caseblock = ast_block_new(parser_ctx(parser));
3199 if (swcase.value) ast_unref(swcase.value);
3200 ast_delete(switchnode);
3203 swcase.code = (ast_expression*)caseblock;
3204 vec_push(switchnode->cases, swcase);
3206 ast_expression *expr;
3207 if (parser->tok == '}')
3209 if (parser->tok == TOKEN_KEYWORD) {
3210 if (!strcmp(parser_tokval(parser), "case") ||
3211 !strcmp(parser_tokval(parser), "default"))
3216 if (!parse_statement(parser, caseblock, &expr, true)) {
3217 ast_delete(switchnode);
3222 if (!ast_block_add_expr(caseblock, expr)) {
3223 ast_delete(switchnode);
3229 parser_leaveblock(parser);
3232 if (parser->tok != '}') {
3233 ast_delete(switchnode);
3234 parseerror(parser, "expected closing paren of case list");
3237 if (!parser_next(parser)) {
3238 ast_delete(switchnode);
3239 parseerror(parser, "parse error after switch");
3242 *out = (ast_expression*)switchnode;
3246 /* parse computed goto sides */
3247 static ast_expression *parse_goto_computed(parser_t *parser, ast_expression **side) {
3248 ast_expression *on_true;
3249 ast_expression *on_false;
3250 ast_expression *cond;
3255 if (ast_istype(*side, ast_ternary)) {
3256 ast_ternary *tern = (ast_ternary*)*side;
3257 on_true = parse_goto_computed(parser, &tern->on_true);
3258 on_false = parse_goto_computed(parser, &tern->on_false);
3260 if (!on_true || !on_false) {
3261 parseerror(parser, "expected label or expression in ternary");
3262 if (on_true) ast_unref(on_true);
3263 if (on_false) ast_unref(on_false);
3271 return (ast_expression*)ast_ifthen_new(parser_ctx(parser), cond, on_true, on_false);
3272 } else if (ast_istype(*side, ast_label)) {
3273 ast_goto *gt = ast_goto_new(parser_ctx(parser), ((ast_label*)*side)->name);
3274 ast_goto_set_label(gt, ((ast_label*)*side));
3276 return (ast_expression*)gt;
3281 static bool parse_goto(parser_t *parser, ast_expression **out)
3283 ast_goto *gt = NULL;
3284 ast_expression *lbl;
3286 if (!parser_next(parser))
3289 if (parser->tok != TOKEN_IDENT) {
3290 ast_expression *expression;
3292 /* could be an expression i.e computed goto :-) */
3293 if (parser->tok != '(') {
3294 parseerror(parser, "expected label name after `goto`");
3298 /* failed to parse expression for goto */
3299 if (!(expression = parse_expression(parser, false, true)) ||
3300 !(*out = parse_goto_computed(parser, &expression))) {
3301 parseerror(parser, "invalid goto expression");
3302 ast_unref(expression);
3309 /* not computed goto */
3310 gt = ast_goto_new(parser_ctx(parser), parser_tokval(parser));
3311 lbl = parser_find_label(parser, gt->name);
3313 if (!ast_istype(lbl, ast_label)) {
3314 parseerror(parser, "internal error: label is not an ast_label");
3318 ast_goto_set_label(gt, (ast_label*)lbl);
3321 vec_push(parser->gotos, gt);
3323 if (!parser_next(parser) || parser->tok != ';') {
3324 parseerror(parser, "semicolon expected after goto label");
3327 if (!parser_next(parser)) {
3328 parseerror(parser, "parse error after goto");
3332 *out = (ast_expression*)gt;
3336 static bool parse_skipwhite(parser_t *parser)
3339 if (!parser_next(parser))
3341 } while (parser->tok == TOKEN_WHITE && parser->tok < TOKEN_ERROR);
3342 return parser->tok < TOKEN_ERROR;
3345 static bool parse_eol(parser_t *parser)
3347 if (!parse_skipwhite(parser))
3349 return parser->tok == TOKEN_EOL;
3352 static bool parse_pragma_do(parser_t *parser)
3354 if (!parser_next(parser) ||
3355 parser->tok != TOKEN_IDENT ||
3356 strcmp(parser_tokval(parser), "pragma"))
3358 parseerror(parser, "expected `pragma` keyword after `#`, got `%s`", parser_tokval(parser));
3361 if (!parse_skipwhite(parser) || parser->tok != TOKEN_IDENT) {
3362 parseerror(parser, "expected pragma, got `%s`", parser_tokval(parser));
3366 if (!strcmp(parser_tokval(parser), "noref")) {
3367 if (!parse_skipwhite(parser) || parser->tok != TOKEN_INTCONST) {
3368 parseerror(parser, "`noref` pragma requires an argument: 0 or 1");
3371 parser->noref = !!parser_token(parser)->constval.i;
3372 if (!parse_eol(parser)) {
3373 parseerror(parser, "parse error after `noref` pragma");
3379 (void)!parsewarning(parser, WARN_UNKNOWN_PRAGMAS, "ignoring #pragma %s", parser_tokval(parser));
3386 static bool parse_pragma(parser_t *parser)
3389 parser->lex->flags.preprocessing = true;
3390 parser->lex->flags.mergelines = true;
3391 rv = parse_pragma_do(parser);
3392 if (parser->tok != TOKEN_EOL) {
3393 parseerror(parser, "junk after pragma");
3396 parser->lex->flags.preprocessing = false;
3397 parser->lex->flags.mergelines = false;
3398 if (!parser_next(parser)) {
3399 parseerror(parser, "parse error after pragma");
3405 static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases)
3407 bool noref, is_static;
3409 uint32_t qflags = 0;
3410 ast_value *typevar = NULL;
3411 char *vstring = NULL;
3415 if (parser->tok == TOKEN_IDENT)
3416 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
3418 if (typevar || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
3420 /* local variable */
3422 parseerror(parser, "cannot declare a variable from here");
3425 if (opts.standard == COMPILER_QCC) {
3426 if (parsewarning(parser, WARN_EXTENSIONS, "missing 'local' keyword when declaring a local variable"))
3429 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL))
3433 else if (parse_qualifiers(parser, !!block, &cvq, &noref, &is_static, &qflags, &vstring))
3435 if (cvq == CV_WRONG)
3437 return parse_variable(parser, block, true, cvq, NULL, noref, is_static, qflags, vstring);
3439 else if (parser->tok == TOKEN_KEYWORD)
3441 if (!strcmp(parser_tokval(parser), "__builtin_debug_printtype"))
3446 if (!parser_next(parser)) {
3447 parseerror(parser, "parse error after __builtin_debug_printtype");
3451 if (parser->tok == TOKEN_IDENT && (tdef = parser_find_typedef(parser, parser_tokval(parser), 0)))
3453 ast_type_to_string((ast_expression*)tdef, ty, sizeof(ty));
3454 con_out("__builtin_debug_printtype: `%s`=`%s`\n", tdef->name, ty);
3455 if (!parser_next(parser)) {
3456 parseerror(parser, "parse error after __builtin_debug_printtype typename argument");
3462 if (!parse_statement(parser, block, out, allow_cases))
3465 con_out("__builtin_debug_printtype: got no output node\n");
3468 ast_type_to_string(*out, ty, sizeof(ty));
3469 con_out("__builtin_debug_printtype: `%s`\n", ty);
3474 else if (!strcmp(parser_tokval(parser), "return"))
3476 return parse_return(parser, block, out);
3478 else if (!strcmp(parser_tokval(parser), "if"))
3480 return parse_if(parser, block, out);
3482 else if (!strcmp(parser_tokval(parser), "while"))
3484 return parse_while(parser, block, out);
3486 else if (!strcmp(parser_tokval(parser), "do"))
3488 return parse_dowhile(parser, block, out);
3490 else if (!strcmp(parser_tokval(parser), "for"))
3492 if (opts.standard == COMPILER_QCC) {
3493 if (parsewarning(parser, WARN_EXTENSIONS, "for loops are not recognized in the original Quake C standard, to enable try an alternate standard --std=?"))
3496 return parse_for(parser, block, out);
3498 else if (!strcmp(parser_tokval(parser), "break"))
3500 return parse_break_continue(parser, block, out, false);
3502 else if (!strcmp(parser_tokval(parser), "continue"))
3504 return parse_break_continue(parser, block, out, true);
3506 else if (!strcmp(parser_tokval(parser), "switch"))
3508 return parse_switch(parser, block, out);
3510 else if (!strcmp(parser_tokval(parser), "case") ||
3511 !strcmp(parser_tokval(parser), "default"))
3514 parseerror(parser, "unexpected 'case' label");
3519 else if (!strcmp(parser_tokval(parser), "goto"))
3521 return parse_goto(parser, out);
3523 else if (!strcmp(parser_tokval(parser), "typedef"))
3525 if (!parser_next(parser)) {
3526 parseerror(parser, "expected type definition after 'typedef'");
3529 return parse_typedef(parser);
3531 parseerror(parser, "Unexpected keyword");
3534 else if (parser->tok == '{')
3537 inner = parse_block(parser);
3540 *out = (ast_expression*)inner;
3543 else if (parser->tok == ':')
3547 if (!parser_next(parser)) {
3548 parseerror(parser, "expected label name");
3551 if (parser->tok != TOKEN_IDENT) {
3552 parseerror(parser, "label must be an identifier");
3555 label = (ast_label*)parser_find_label(parser, parser_tokval(parser));
3557 if (!label->undefined) {
3558 parseerror(parser, "label `%s` already defined", label->name);
3561 label->undefined = false;
3564 label = ast_label_new(parser_ctx(parser), parser_tokval(parser), false);
3565 vec_push(parser->labels, label);
3567 *out = (ast_expression*)label;
3568 if (!parser_next(parser)) {
3569 parseerror(parser, "parse error after label");
3572 for (i = 0; i < vec_size(parser->gotos); ++i) {
3573 if (!strcmp(parser->gotos[i]->name, label->name)) {
3574 ast_goto_set_label(parser->gotos[i], label);
3575 vec_remove(parser->gotos, i, 1);
3581 else if (parser->tok == ';')
3583 if (!parser_next(parser)) {
3584 parseerror(parser, "parse error after empty statement");
3591 ast_expression *exp = parse_expression(parser, false, false);
3595 if (!ast_side_effects(exp)) {
3596 if (genwarning(ast_ctx(exp), WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
3603 static bool parse_enum(parser_t *parser)
3606 ast_value **values = NULL;
3607 ast_value *var = NULL;
3610 ast_expression *old;
3612 if (!parser_next(parser) || parser->tok != '{') {
3613 parseerror(parser, "expected `{` after `enum` keyword");
3618 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
3619 if (parser->tok == '}') {
3620 /* allow an empty enum */
3623 parseerror(parser, "expected identifier or `}`");
3627 old = parser_find_field(parser, parser_tokval(parser));
3629 old = parser_find_global(parser, parser_tokval(parser));
3631 parseerror(parser, "value `%s` has already been declared here: %s:%i",
3632 parser_tokval(parser), ast_ctx(old).file, ast_ctx(old).line);
3636 var = ast_value_new(parser_ctx(parser), parser_tokval(parser), TYPE_FLOAT);
3637 vec_push(values, var);
3638 var->cvq = CV_CONST;
3639 var->hasvalue = true;
3640 var->constval.vfloat = num++;
3642 parser_addglobal(parser, var->name, (ast_expression*)var);
3644 if (!parser_next(parser)) {
3645 parseerror(parser, "expected `=`, `}` or comma after identifier");
3649 if (parser->tok == ',')
3651 if (parser->tok == '}')
3653 if (parser->tok != '=') {
3654 parseerror(parser, "expected `=`, `}` or comma after identifier");
3658 if (!parser_next(parser)) {
3659 parseerror(parser, "expected expression after `=`");
3663 /* We got a value! */
3664 old = parse_expression_leave(parser, true, false, false);
3665 asvalue = (ast_value*)old;
3666 if (!ast_istype(old, ast_value) || asvalue->cvq != CV_CONST || !asvalue->hasvalue) {
3667 compile_error(ast_ctx(var), "constant value or expression expected");
3670 num = (var->constval.vfloat = asvalue->constval.vfloat) + 1;
3672 if (parser->tok == '}')
3674 if (parser->tok != ',') {
3675 parseerror(parser, "expected `}` or comma after expression");
3680 if (parser->tok != '}') {
3681 parseerror(parser, "internal error: breaking without `}`");
3685 if (!parser_next(parser) || parser->tok != ';') {
3686 parseerror(parser, "expected semicolon after enumeration");
3690 if (!parser_next(parser)) {
3691 parseerror(parser, "parse error after enumeration");
3703 static bool parse_block_into(parser_t *parser, ast_block *block)
3707 parser_enterblock(parser);
3709 if (!parser_next(parser)) { /* skip the '{' */
3710 parseerror(parser, "expected function body");
3714 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
3716 ast_expression *expr = NULL;
3717 if (parser->tok == '}')
3720 if (!parse_statement(parser, block, &expr, false)) {
3721 /* parseerror(parser, "parse error"); */
3727 if (!ast_block_add_expr(block, expr)) {
3734 if (parser->tok != '}') {
3737 (void)parser_next(parser);
3741 if (!parser_leaveblock(parser))
3743 return retval && !!block;
3746 static ast_block* parse_block(parser_t *parser)
3749 block = ast_block_new(parser_ctx(parser));
3752 if (!parse_block_into(parser, block)) {
3753 ast_block_delete(block);
3759 static bool parse_statement_or_block(parser_t *parser, ast_expression **out)
3761 if (parser->tok == '{') {
3762 *out = (ast_expression*)parse_block(parser);
3765 return parse_statement(parser, NULL, out, false);
3768 static bool create_vector_members(ast_value *var, ast_member **me)
3771 size_t len = strlen(var->name);
3773 for (i = 0; i < 3; ++i) {
3774 char *name = (char*)mem_a(len+3);
3775 memcpy(name, var->name, len);
3777 name[len+1] = 'x'+i;
3779 me[i] = ast_member_new(ast_ctx(var), (ast_expression*)var, i, name);
3788 do { ast_member_delete(me[--i]); } while(i);
3792 static bool parse_function_body(parser_t *parser, ast_value *var)
3794 ast_block *block = NULL;
3799 ast_expression *framenum = NULL;
3800 ast_expression *nextthink = NULL;
3801 /* None of the following have to be deleted */
3802 ast_expression *fld_think = NULL, *fld_nextthink = NULL, *fld_frame = NULL;
3803 ast_expression *gbl_time = NULL, *gbl_self = NULL;
3804 bool has_frame_think;
3808 has_frame_think = false;
3809 old = parser->function;
3811 if (vec_size(parser->gotos) || vec_size(parser->labels)) {
3812 parseerror(parser, "gotos/labels leaking");
3816 if (!OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC) {
3817 if (parsewarning(parser, WARN_VARIADIC_FUNCTION,
3818 "variadic function with implementation will not be able to access additional parameters (try -fvariadic-args)"))
3824 if (parser->tok == '[') {
3825 /* got a frame definition: [ framenum, nextthink ]
3826 * this translates to:
3827 * self.frame = framenum;
3828 * self.nextthink = time + 0.1;
3829 * self.think = nextthink;
3833 fld_think = parser_find_field(parser, "think");
3834 fld_nextthink = parser_find_field(parser, "nextthink");
3835 fld_frame = parser_find_field(parser, "frame");
3836 if (!fld_think || !fld_nextthink || !fld_frame) {
3837 parseerror(parser, "cannot use [frame,think] notation without the required fields");
3838 parseerror(parser, "please declare the following entityfields: `frame`, `think`, `nextthink`");
3841 gbl_time = parser_find_global(parser, "time");
3842 gbl_self = parser_find_global(parser, "self");
3843 if (!gbl_time || !gbl_self) {
3844 parseerror(parser, "cannot use [frame,think] notation without the required globals");
3845 parseerror(parser, "please declare the following globals: `time`, `self`");
3849 if (!parser_next(parser))
3852 framenum = parse_expression_leave(parser, true, false, false);
3854 parseerror(parser, "expected a framenumber constant in[frame,think] notation");
3857 if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->hasvalue) {
3858 ast_unref(framenum);
3859 parseerror(parser, "framenumber in [frame,think] notation must be a constant");
3863 if (parser->tok != ',') {
3864 ast_unref(framenum);
3865 parseerror(parser, "expected comma after frame number in [frame,think] notation");
3866 parseerror(parser, "Got a %i\n", parser->tok);
3870 if (!parser_next(parser)) {
3871 ast_unref(framenum);
3875 if (parser->tok == TOKEN_IDENT && !parser_find_var(parser, parser_tokval(parser)))
3877 /* qc allows the use of not-yet-declared functions here
3878 * - this automatically creates a prototype */
3879 ast_value *thinkfunc;
3880 ast_expression *functype = fld_think->expression.next;
3882 thinkfunc = ast_value_new(parser_ctx(parser), parser_tokval(parser), functype->expression.vtype);
3883 if (!thinkfunc || !ast_type_adopt(thinkfunc, functype)) {
3884 ast_unref(framenum);
3885 parseerror(parser, "failed to create implicit prototype for `%s`", parser_tokval(parser));
3889 if (!parser_next(parser)) {
3890 ast_unref(framenum);
3891 ast_delete(thinkfunc);
3895 parser_addglobal(parser, thinkfunc->name, (ast_expression*)thinkfunc);
3897 nextthink = (ast_expression*)thinkfunc;
3900 nextthink = parse_expression_leave(parser, true, false, false);
3902 ast_unref(framenum);
3903 parseerror(parser, "expected a think-function in [frame,think] notation");
3908 if (!ast_istype(nextthink, ast_value)) {
3909 parseerror(parser, "think-function in [frame,think] notation must be a constant");
3913 if (retval && parser->tok != ']') {
3914 parseerror(parser, "expected closing `]` for [frame,think] notation");
3918 if (retval && !parser_next(parser)) {
3922 if (retval && parser->tok != '{') {
3923 parseerror(parser, "a function body has to be declared after a [frame,think] declaration");
3928 ast_unref(nextthink);
3929 ast_unref(framenum);
3933 has_frame_think = true;
3936 block = ast_block_new(parser_ctx(parser));
3938 parseerror(parser, "failed to allocate block");
3939 if (has_frame_think) {
3940 ast_unref(nextthink);
3941 ast_unref(framenum);
3946 if (has_frame_think) {
3948 ast_expression *self_frame;
3949 ast_expression *self_nextthink;
3950 ast_expression *self_think;
3951 ast_expression *time_plus_1;
3952 ast_store *store_frame;
3953 ast_store *store_nextthink;
3954 ast_store *store_think;
3956 ctx = parser_ctx(parser);
3957 self_frame = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_frame);
3958 self_nextthink = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_nextthink);
3959 self_think = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_think);
3961 time_plus_1 = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F,
3962 gbl_time, (ast_expression*)parser_const_float(parser, 0.1));
3964 if (!self_frame || !self_nextthink || !self_think || !time_plus_1) {
3965 if (self_frame) ast_delete(self_frame);
3966 if (self_nextthink) ast_delete(self_nextthink);
3967 if (self_think) ast_delete(self_think);
3968 if (time_plus_1) ast_delete(time_plus_1);
3974 store_frame = ast_store_new(ctx, INSTR_STOREP_F, self_frame, framenum);
3975 store_nextthink = ast_store_new(ctx, INSTR_STOREP_F, self_nextthink, time_plus_1);
3976 store_think = ast_store_new(ctx, INSTR_STOREP_FNC, self_think, nextthink);
3979 ast_delete(self_frame);
3982 if (!store_nextthink) {
3983 ast_delete(self_nextthink);
3987 ast_delete(self_think);
3991 if (store_frame) ast_delete(store_frame);
3992 if (store_nextthink) ast_delete(store_nextthink);
3993 if (store_think) ast_delete(store_think);
3996 if (!ast_block_add_expr(block, (ast_expression*)store_frame) ||
3997 !ast_block_add_expr(block, (ast_expression*)store_nextthink) ||
3998 !ast_block_add_expr(block, (ast_expression*)store_think))
4005 parseerror(parser, "failed to generate code for [frame,think]");
4006 ast_unref(nextthink);
4007 ast_unref(framenum);
4013 func = ast_function_new(ast_ctx(var), var->name, var);
4015 parseerror(parser, "failed to allocate function for `%s`", var->name);
4016 ast_block_delete(block);
4019 vec_push(parser->functions, func);
4021 parser_enterblock(parser);
4023 for (parami = 0; parami < vec_size(var->expression.params); ++parami) {
4025 ast_value *param = var->expression.params[parami];
4028 if (param->expression.vtype != TYPE_VECTOR &&
4029 (param->expression.vtype != TYPE_FIELD ||
4030 param->expression.next->expression.vtype != TYPE_VECTOR))
4035 if (!create_vector_members(param, me)) {
4036 ast_block_delete(block);
4040 for (e = 0; e < 3; ++e) {
4041 parser_addlocal(parser, me[e]->name, (ast_expression*)me[e]);
4042 ast_block_collect(block, (ast_expression*)me[e]);
4046 if (var->argcounter) {
4047 ast_value *argc = ast_value_new(ast_ctx(var), var->argcounter, TYPE_FLOAT);
4048 parser_addlocal(parser, argc->name, (ast_expression*)argc);
4052 if (OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC) {
4054 ast_value *varargs = ast_value_new(ast_ctx(var), "reserved:va_args", TYPE_ARRAY);
4055 varargs->expression.flags |= AST_FLAG_IS_VARARG;
4056 varargs->expression.next = (ast_expression*)ast_value_new(ast_ctx(var), NULL, TYPE_VECTOR);
4057 varargs->expression.count = 0;
4058 snprintf(name, sizeof(name), "%s##va##SET", var->name);
4059 if (!parser_create_array_setter_proto(parser, varargs, name)) {
4060 ast_delete(varargs);
4061 ast_block_delete(block);
4064 snprintf(name, sizeof(name), "%s##va##GET", var->name);
4065 if (!parser_create_array_getter_proto(parser, varargs, varargs->expression.next, name)) {
4066 ast_delete(varargs);
4067 ast_block_delete(block);
4070 func->varargs = varargs;
4073 parser->function = func;
4074 if (!parse_block_into(parser, block)) {
4075 ast_block_delete(block);
4079 vec_push(func->blocks, block);
4081 parser->function = old;
4082 if (!parser_leaveblock(parser))
4084 if (vec_size(parser->variables) != PARSER_HT_LOCALS) {
4085 parseerror(parser, "internal error: local scopes left");
4089 if (parser->tok == ';')
4090 return parser_next(parser);
4091 else if (opts.standard == COMPILER_QCC)
4092 parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)");
4096 (void)!parser_leaveblock(parser);
4097 vec_pop(parser->functions);
4098 ast_function_delete(func);
4099 var->constval.vfunc = NULL;
4102 parser->function = old;
4106 static ast_expression *array_accessor_split(
4111 ast_expression *left,
4112 ast_expression *right
4118 lex_ctx ctx = ast_ctx(array);
4120 if (!left || !right) {
4121 if (left) ast_delete(left);
4122 if (right) ast_delete(right);
4126 cmp = ast_binary_new(ctx, INSTR_LT,
4127 (ast_expression*)index,
4128 (ast_expression*)parser_const_float(parser, middle));
4132 parseerror(parser, "internal error: failed to create comparison for array setter");
4136 ifthen = ast_ifthen_new(ctx, (ast_expression*)cmp, left, right);
4138 ast_delete(cmp); /* will delete left and right */
4139 parseerror(parser, "internal error: failed to create conditional jump for array setter");
4143 return (ast_expression*)ifthen;
4146 static ast_expression *array_setter_node(parser_t *parser, ast_value *array, ast_value *index, ast_value *value, size_t from, size_t afterend)
4148 lex_ctx ctx = ast_ctx(array);
4150 if (from+1 == afterend) {
4151 /* set this value */
4154 ast_array_index *subscript;
4156 int assignop = type_store_instr[value->expression.vtype];
4158 if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR)
4159 assignop = INSTR_STORE_V;
4161 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
4165 st = ast_store_new(ctx, assignop, (ast_expression*)subscript, (ast_expression*)value);
4167 ast_delete(subscript);
4171 block = ast_block_new(ctx);
4177 if (!ast_block_add_expr(block, (ast_expression*)st)) {
4182 ret = ast_return_new(ctx, NULL);
4188 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
4193 return (ast_expression*)block;
4195 ast_expression *left, *right;
4196 size_t diff = afterend - from;
4197 size_t middle = from + diff/2;
4198 left = array_setter_node(parser, array, index, value, from, middle);
4199 right = array_setter_node(parser, array, index, value, middle, afterend);
4200 return array_accessor_split(parser, array, index, middle, left, right);
4204 static ast_expression *array_field_setter_node(
4213 lex_ctx ctx = ast_ctx(array);
4215 if (from+1 == afterend) {
4216 /* set this value */
4219 ast_entfield *entfield;
4220 ast_array_index *subscript;
4222 int assignop = type_storep_instr[value->expression.vtype];
4224 if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR)
4225 assignop = INSTR_STOREP_V;
4227 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
4231 subscript->expression.next = ast_type_copy(ast_ctx(subscript), (ast_expression*)subscript);
4232 subscript->expression.vtype = TYPE_FIELD;
4234 entfield = ast_entfield_new_force(ctx,
4235 (ast_expression*)entity,
4236 (ast_expression*)subscript,
4237 (ast_expression*)subscript);
4239 ast_delete(subscript);
4243 st = ast_store_new(ctx, assignop, (ast_expression*)entfield, (ast_expression*)value);
4245 ast_delete(entfield);
4249 block = ast_block_new(ctx);
4255 if (!ast_block_add_expr(block, (ast_expression*)st)) {
4260 ret = ast_return_new(ctx, NULL);
4266 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
4271 return (ast_expression*)block;
4273 ast_expression *left, *right;
4274 size_t diff = afterend - from;
4275 size_t middle = from + diff/2;
4276 left = array_field_setter_node(parser, array, entity, index, value, from, middle);
4277 right = array_field_setter_node(parser, array, entity, index, value, middle, afterend);
4278 return array_accessor_split(parser, array, index, middle, left, right);
4282 static ast_expression *array_getter_node(parser_t *parser, ast_value *array, ast_value *index, size_t from, size_t afterend)
4284 lex_ctx ctx = ast_ctx(array);
4286 if (from+1 == afterend) {
4288 ast_array_index *subscript;
4290 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
4294 ret = ast_return_new(ctx, (ast_expression*)subscript);
4296 ast_delete(subscript);
4300 return (ast_expression*)ret;
4302 ast_expression *left, *right;
4303 size_t diff = afterend - from;
4304 size_t middle = from + diff/2;
4305 left = array_getter_node(parser, array, index, from, middle);
4306 right = array_getter_node(parser, array, index, middle, afterend);
4307 return array_accessor_split(parser, array, index, middle, left, right);
4311 static bool parser_create_array_accessor(parser_t *parser, ast_value *array, const char *funcname, ast_value **out)
4313 ast_function *func = NULL;
4314 ast_value *fval = NULL;
4315 ast_block *body = NULL;
4317 fval = ast_value_new(ast_ctx(array), funcname, TYPE_FUNCTION);
4319 parseerror(parser, "failed to create accessor function value");
4323 func = ast_function_new(ast_ctx(array), funcname, fval);
4326 parseerror(parser, "failed to create accessor function node");
4330 body = ast_block_new(ast_ctx(array));
4332 parseerror(parser, "failed to create block for array accessor");
4338 vec_push(func->blocks, body);
4341 vec_push(parser->accessors, fval);
4346 static ast_value* parser_create_array_setter_proto(parser_t *parser, ast_value *array, const char *funcname)
4348 ast_value *index = NULL;
4349 ast_value *value = NULL;
4353 if (!ast_istype(array->expression.next, ast_value)) {
4354 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4358 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4360 func = fval->constval.vfunc;
4361 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
4363 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4364 value = ast_value_copy((ast_value*)array->expression.next);
4366 if (!index || !value) {
4367 parseerror(parser, "failed to create locals for array accessor");
4370 (void)!ast_value_set_name(value, "value"); /* not important */
4371 vec_push(fval->expression.params, index);
4372 vec_push(fval->expression.params, value);
4374 array->setter = fval;
4377 if (index) ast_delete(index);
4378 if (value) ast_delete(value);
4384 static bool parser_create_array_setter_impl(parser_t *parser, ast_value *array)
4386 ast_expression *root = NULL;
4387 root = array_setter_node(parser, array,
4388 array->setter->expression.params[0],
4389 array->setter->expression.params[1],
4390 0, array->expression.count);
4392 parseerror(parser, "failed to build accessor search tree");
4395 if (!ast_block_add_expr(array->setter->constval.vfunc->blocks[0], root)) {
4402 static bool parser_create_array_setter(parser_t *parser, ast_value *array, const char *funcname)
4404 if (!parser_create_array_setter_proto(parser, array, funcname))
4406 return parser_create_array_setter_impl(parser, array);
4409 static bool parser_create_array_field_setter(parser_t *parser, ast_value *array, const char *funcname)
4411 ast_expression *root = NULL;
4412 ast_value *entity = NULL;
4413 ast_value *index = NULL;
4414 ast_value *value = NULL;
4418 if (!ast_istype(array->expression.next, ast_value)) {
4419 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4423 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4425 func = fval->constval.vfunc;
4426 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
4428 entity = ast_value_new(ast_ctx(array), "entity", TYPE_ENTITY);
4429 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4430 value = ast_value_copy((ast_value*)array->expression.next);
4431 if (!entity || !index || !value) {
4432 parseerror(parser, "failed to create locals for array accessor");
4435 (void)!ast_value_set_name(value, "value"); /* not important */
4436 vec_push(fval->expression.params, entity);
4437 vec_push(fval->expression.params, index);
4438 vec_push(fval->expression.params, value);
4440 root = array_field_setter_node(parser, array, entity, index, value, 0, array->expression.count);
4442 parseerror(parser, "failed to build accessor search tree");
4446 array->setter = fval;
4447 return ast_block_add_expr(func->blocks[0], root);
4449 if (entity) ast_delete(entity);
4450 if (index) ast_delete(index);
4451 if (value) ast_delete(value);
4452 if (root) ast_delete(root);
4458 static ast_value* parser_create_array_getter_proto(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
4460 ast_value *index = NULL;
4464 /* NOTE: checking array->expression.next rather than elemtype since
4465 * for fields elemtype is a temporary fieldtype.
4467 if (!ast_istype(array->expression.next, ast_value)) {
4468 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4472 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4474 func = fval->constval.vfunc;
4475 fval->expression.next = ast_type_copy(ast_ctx(array), elemtype);
4477 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4480 parseerror(parser, "failed to create locals for array accessor");
4483 vec_push(fval->expression.params, index);
4485 array->getter = fval;
4488 if (index) ast_delete(index);
4494 static bool parser_create_array_getter_impl(parser_t *parser, ast_value *array)
4496 ast_expression *root = NULL;
4498 root = array_getter_node(parser, array, array->getter->expression.params[0], 0, array->expression.count);
4500 parseerror(parser, "failed to build accessor search tree");
4503 if (!ast_block_add_expr(array->getter->constval.vfunc->blocks[0], root)) {
4510 static bool parser_create_array_getter(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
4512 if (!parser_create_array_getter_proto(parser, array, elemtype, funcname))
4514 return parser_create_array_getter_impl(parser, array);
4517 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
4518 static ast_value *parse_parameter_list(parser_t *parser, ast_value *var)
4526 bool variadic = false;
4527 ast_value *varparam = NULL;
4528 char *argcounter = NULL;
4530 ctx = parser_ctx(parser);
4532 /* for the sake of less code we parse-in in this function */
4533 if (!parser_next(parser)) {
4534 parseerror(parser, "expected parameter list");
4540 /* parse variables until we hit a closing paren */
4541 while (parser->tok != ')') {
4543 /* there must be commas between them */
4544 if (parser->tok != ',') {
4545 parseerror(parser, "expected comma or end of parameter list");
4548 if (!parser_next(parser)) {
4549 parseerror(parser, "expected parameter");
4555 if (parser->tok == TOKEN_DOTS) {
4556 /* '...' indicates a varargs function */
4558 if (!parser_next(parser) || (parser->tok != ')' && parser->tok != TOKEN_IDENT)) {
4559 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4562 if (parser->tok == TOKEN_IDENT) {
4563 argcounter = util_strdup(parser_tokval(parser));
4564 if (!parser_next(parser) || parser->tok != ')') {
4565 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4572 /* for anything else just parse a typename */
4573 param = parse_typename(parser, NULL, NULL);
4576 vec_push(params, param);
4577 if (param->expression.vtype >= TYPE_VARIANT) {
4578 char tname[1024]; /* typename is reserved in C++ */
4579 ast_type_to_string((ast_expression*)param, tname, sizeof(tname));
4580 parseerror(parser, "type not supported as part of a parameter list: %s", tname);
4583 /* type-restricted varargs */
4584 if (parser->tok == TOKEN_DOTS) {
4586 varparam = vec_last(params);
4588 if (!parser_next(parser) || (parser->tok != ')' && parser->tok != TOKEN_IDENT)) {
4589 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4592 if (parser->tok == TOKEN_IDENT) {
4593 argcounter = util_strdup(parser_tokval(parser));
4594 if (!parser_next(parser) || parser->tok != ')') {
4595 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4603 if (vec_size(params) == 1 && params[0]->expression.vtype == TYPE_VOID)
4607 if (vec_size(params) > 8 && opts.standard == COMPILER_QCC)
4608 (void)!parsewarning(parser, WARN_EXTENSIONS, "more than 8 parameters are not supported by this standard");
4611 if (!parser_next(parser)) {
4612 parseerror(parser, "parse error after typename");
4616 /* now turn 'var' into a function type */
4617 fval = ast_value_new(ctx, "<type()>", TYPE_FUNCTION);
4618 fval->expression.next = (ast_expression*)var;
4620 fval->expression.flags |= AST_FLAG_VARIADIC;
4623 var->expression.params = params;
4624 var->expression.varparam = (ast_expression*)varparam;
4625 var->argcounter = argcounter;
4634 for (i = 0; i < vec_size(params); ++i)
4635 ast_delete(params[i]);
4640 static ast_value *parse_arraysize(parser_t *parser, ast_value *var)
4642 ast_expression *cexp;
4643 ast_value *cval, *tmp;
4646 ctx = parser_ctx(parser);
4648 if (!parser_next(parser)) {
4650 parseerror(parser, "expected array-size");
4654 cexp = parse_expression_leave(parser, true, false, false);
4656 if (!cexp || !ast_istype(cexp, ast_value)) {
4660 parseerror(parser, "expected array-size as constant positive integer");
4663 cval = (ast_value*)cexp;
4665 tmp = ast_value_new(ctx, "<type[]>", TYPE_ARRAY);
4666 tmp->expression.next = (ast_expression*)var;
4669 if (cval->expression.vtype == TYPE_INTEGER)
4670 tmp->expression.count = cval->constval.vint;
4671 else if (cval->expression.vtype == TYPE_FLOAT)
4672 tmp->expression.count = cval->constval.vfloat;
4676 parseerror(parser, "array-size must be a positive integer constant");
4681 if (parser->tok != ']') {
4683 parseerror(parser, "expected ']' after array-size");
4686 if (!parser_next(parser)) {
4688 parseerror(parser, "error after parsing array size");
4694 /* Parse a complete typename.
4695 * for single-variables (ie. function parameters or typedefs) storebase should be NULL
4696 * but when parsing variables separated by comma
4697 * 'storebase' should point to where the base-type should be kept.
4698 * The base type makes up every bit of type information which comes *before* the
4701 * The following will be parsed in its entirety:
4703 * The 'basetype' in this case is 'void()'
4704 * and if there's a comma after it, say:
4706 * then the type-information 'void()' can be stored in 'storebase'
4708 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef)
4710 ast_value *var, *tmp;
4713 const char *name = NULL;
4714 bool isfield = false;
4715 bool wasarray = false;
4716 size_t morefields = 0;
4718 ctx = parser_ctx(parser);
4720 /* types may start with a dot */
4721 if (parser->tok == '.') {
4723 /* if we parsed a dot we need a typename now */
4724 if (!parser_next(parser)) {
4725 parseerror(parser, "expected typename for field definition");
4729 /* Further dots are handled seperately because they won't be part of the
4732 while (parser->tok == '.') {
4734 if (!parser_next(parser)) {
4735 parseerror(parser, "expected typename for field definition");
4740 if (parser->tok == TOKEN_IDENT)
4741 cached_typedef = parser_find_typedef(parser, parser_tokval(parser), 0);
4742 if (!cached_typedef && parser->tok != TOKEN_TYPENAME) {
4743 parseerror(parser, "expected typename");
4747 /* generate the basic type value */
4748 if (cached_typedef) {
4749 var = ast_value_copy(cached_typedef);
4750 ast_value_set_name(var, "<type(from_def)>");
4752 var = ast_value_new(ctx, "<type>", parser_token(parser)->constval.t);
4754 for (; morefields; --morefields) {
4755 tmp = ast_value_new(ctx, "<.type>", TYPE_FIELD);
4756 tmp->expression.next = (ast_expression*)var;
4760 /* do not yet turn into a field - remember:
4761 * .void() foo; is a field too
4762 * .void()() foo; is a function
4766 if (!parser_next(parser)) {
4768 parseerror(parser, "parse error after typename");
4772 /* an opening paren now starts the parameter-list of a function
4773 * this is where original-QC has parameter lists.
4774 * We allow a single parameter list here.
4775 * Much like fteqcc we don't allow `float()() x`
4777 if (parser->tok == '(') {
4778 var = parse_parameter_list(parser, var);
4783 /* store the base if requested */
4785 *storebase = ast_value_copy(var);
4787 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
4788 tmp->expression.next = (ast_expression*)*storebase;
4793 /* there may be a name now */
4794 if (parser->tok == TOKEN_IDENT) {
4795 name = util_strdup(parser_tokval(parser));
4797 if (!parser_next(parser)) {
4799 parseerror(parser, "error after variable or field declaration");
4804 /* now this may be an array */
4805 if (parser->tok == '[') {
4807 var = parse_arraysize(parser, var);
4812 /* This is the point where we can turn it into a field */
4814 /* turn it into a field if desired */
4815 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
4816 tmp->expression.next = (ast_expression*)var;
4820 /* now there may be function parens again */
4821 if (parser->tok == '(' && opts.standard == COMPILER_QCC)
4822 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4823 if (parser->tok == '(' && wasarray)
4824 parseerror(parser, "arrays as part of a return type is not supported");
4825 while (parser->tok == '(') {
4826 var = parse_parameter_list(parser, var);
4834 /* finally name it */
4836 if (!ast_value_set_name(var, name)) {
4838 parseerror(parser, "internal error: failed to set name");
4841 /* free the name, ast_value_set_name duplicates */
4848 static bool parse_typedef(parser_t *parser)
4850 ast_value *typevar, *oldtype;
4851 ast_expression *old;
4853 typevar = parse_typename(parser, NULL, NULL);
4858 if ( (old = parser_find_var(parser, typevar->name)) ) {
4859 parseerror(parser, "cannot define a type with the same name as a variable: %s\n"
4860 " -> `%s` has been declared here: %s:%i",
4861 typevar->name, ast_ctx(old).file, ast_ctx(old).line);
4862 ast_delete(typevar);
4866 if ( (oldtype = parser_find_typedef(parser, typevar->name, vec_last(parser->_blocktypedefs))) ) {
4867 parseerror(parser, "type `%s` has already been declared here: %s:%i",
4868 typevar->name, ast_ctx(oldtype).file, ast_ctx(oldtype).line);
4869 ast_delete(typevar);
4873 vec_push(parser->_typedefs, typevar);
4874 util_htset(vec_last(parser->typedefs), typevar->name, typevar);
4876 if (parser->tok != ';') {
4877 parseerror(parser, "expected semicolon after typedef");
4880 if (!parser_next(parser)) {
4881 parseerror(parser, "parse error after typedef");
4888 static const char *cvq_to_str(int cvq) {
4890 case CV_NONE: return "none";
4891 case CV_VAR: return "`var`";
4892 case CV_CONST: return "`const`";
4893 default: return "<INVALID>";
4897 static bool parser_check_qualifiers(parser_t *parser, const ast_value *var, const ast_value *proto)
4900 if (proto->cvq != var->cvq) {
4901 if (!(proto->cvq == CV_CONST && var->cvq == CV_NONE &&
4902 !OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
4903 parser->tok == '='))
4905 return !parsewarning(parser, WARN_DIFFERENT_QUALIFIERS,
4906 "`%s` declared with different qualifiers: %s\n"
4907 " -> previous declaration here: %s:%i uses %s",
4908 var->name, cvq_to_str(var->cvq),
4909 ast_ctx(proto).file, ast_ctx(proto).line,
4910 cvq_to_str(proto->cvq));
4913 av = (var ->expression.flags & AST_FLAG_NORETURN);
4914 ao = (proto->expression.flags & AST_FLAG_NORETURN);
4916 return !parsewarning(parser, WARN_DIFFERENT_ATTRIBUTES,
4917 "`%s` declared with different attributes%s\n"
4918 " -> previous declaration here: %s:%i",
4919 var->name, (av ? ": noreturn" : ""),
4920 ast_ctx(proto).file, ast_ctx(proto).line,
4921 (ao ? ": noreturn" : ""));
4926 static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofields, int qualifier, ast_value *cached_typedef, bool noref, bool is_static, uint32_t qflags, char *vstring)
4930 ast_expression *old;
4934 ast_value *basetype = NULL;
4936 bool isparam = false;
4937 bool isvector = false;
4938 bool cleanvar = true;
4939 bool wasarray = false;
4943 if (!localblock && is_static)
4944 parseerror(parser, "`static` qualifier is not supported in global scope");
4946 /* get the first complete variable */
4947 var = parse_typename(parser, &basetype, cached_typedef);
4950 ast_delete(basetype);
4958 /* Part 0: finish the type */
4959 if (parser->tok == '(') {
4960 if (opts.standard == COMPILER_QCC)
4961 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4962 var = parse_parameter_list(parser, var);
4968 /* we only allow 1-dimensional arrays */
4969 if (parser->tok == '[') {
4971 var = parse_arraysize(parser, var);
4977 if (parser->tok == '(' && wasarray) {
4978 parseerror(parser, "arrays as part of a return type is not supported");
4979 /* we'll still parse the type completely for now */
4981 /* for functions returning functions */
4982 while (parser->tok == '(') {
4983 if (opts.standard == COMPILER_QCC)
4984 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4985 var = parse_parameter_list(parser, var);
4992 var->cvq = qualifier;
4993 var->expression.flags |= qflags;
4994 if (var->expression.flags & AST_FLAG_DEPRECATED)
4995 var->desc = vstring;
4998 * check for validity: (end_sys_..., multiple-definitions, prototypes, ...)
4999 * Also: if there was a prototype, `var` will be deleted and set to `proto` which
5000 * is then filled with the previous definition and the parameter-names replaced.
5002 if (!strcmp(var->name, "nil")) {
5003 if (OPTS_FLAG(UNTYPED_NIL)) {
5004 if (!localblock || !OPTS_FLAG(PERMISSIVE))
5005 parseerror(parser, "name `nil` not allowed (try -fpermissive)");
5007 (void)!parsewarning(parser, WARN_RESERVED_NAMES, "variable name `nil` is reserved");
5010 /* Deal with end_sys_ vars */
5012 if (!strcmp(var->name, "end_sys_globals")) {
5014 parser->crc_globals = vec_size(parser->globals);
5017 else if (!strcmp(var->name, "end_sys_fields")) {
5019 parser->crc_fields = vec_size(parser->fields);
5022 if (was_end && var->expression.vtype == TYPE_FIELD) {
5023 if (parsewarning(parser, WARN_END_SYS_FIELDS,
5024 "global '%s' hint should not be a field",
5025 parser_tokval(parser)))
5032 if (!nofields && var->expression.vtype == TYPE_FIELD)
5034 /* deal with field declarations */
5035 old = parser_find_field(parser, var->name);
5037 if (parsewarning(parser, WARN_FIELD_REDECLARED, "field `%s` already declared here: %s:%i",
5038 var->name, ast_ctx(old).file, (int)ast_ctx(old).line))
5047 parseerror(parser, "field `%s` already declared here: %s:%i",
5048 var->name, ast_ctx(old).file, ast_ctx(old).line);
5053 if ((opts.standard == COMPILER_QCC || opts.standard == COMPILER_FTEQCC) &&
5054 (old = parser_find_global(parser, var->name)))
5056 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
5057 parseerror(parser, "field `%s` already declared here: %s:%i",
5058 var->name, ast_ctx(old).file, ast_ctx(old).line);
5065 /* deal with other globals */
5066 old = parser_find_global(parser, var->name);
5067 if (old && var->expression.vtype == TYPE_FUNCTION && old->expression.vtype == TYPE_FUNCTION)
5069 /* This is a function which had a prototype */
5070 if (!ast_istype(old, ast_value)) {
5071 parseerror(parser, "internal error: prototype is not an ast_value");
5075 proto = (ast_value*)old;
5076 proto->desc = var->desc;
5077 if (!ast_compare_type((ast_expression*)proto, (ast_expression*)var)) {
5078 parseerror(parser, "conflicting types for `%s`, previous declaration was here: %s:%i",
5080 ast_ctx(proto).file, ast_ctx(proto).line);
5084 /* we need the new parameter-names */
5085 for (i = 0; i < vec_size(proto->expression.params); ++i)
5086 ast_value_set_name(proto->expression.params[i], var->expression.params[i]->name);
5087 if (!parser_check_qualifiers(parser, var, proto)) {
5094 proto->expression.flags |= var->expression.flags;
5102 if (parsewarning(parser, WARN_DOUBLE_DECLARATION,
5103 "global `%s` already declared here: %s:%i",
5104 var->name, ast_ctx(old).file, ast_ctx(old).line))
5109 proto = (ast_value*)old;
5110 if (!ast_istype(old, ast_value)) {
5111 parseerror(parser, "internal error: not an ast_value");
5116 if (!parser_check_qualifiers(parser, var, proto)) {
5121 proto->expression.flags |= var->expression.flags;
5125 if (opts.standard == COMPILER_QCC &&
5126 (old = parser_find_field(parser, var->name)))
5128 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
5129 parseerror(parser, "global `%s` already declared here: %s:%i",
5130 var->name, ast_ctx(old).file, ast_ctx(old).line);
5137 else /* it's not a global */
5139 old = parser_find_local(parser, var->name, vec_size(parser->variables)-1, &isparam);
5140 if (old && !isparam) {
5141 parseerror(parser, "local `%s` already declared here: %s:%i",
5142 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
5146 old = parser_find_local(parser, var->name, 0, &isparam);
5147 if (old && isparam) {
5148 if (parsewarning(parser, WARN_LOCAL_SHADOWS,
5149 "local `%s` is shadowing a parameter", var->name))
5151 parseerror(parser, "local `%s` already declared here: %s:%i",
5152 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
5156 if (opts.standard != COMPILER_GMQCC) {
5164 /* in a noref section we simply bump the usecount */
5165 if (noref || parser->noref)
5169 * Create the global/local, and deal with vector types.
5172 if (var->expression.vtype == TYPE_VECTOR)
5174 else if (var->expression.vtype == TYPE_FIELD &&
5175 var->expression.next->expression.vtype == TYPE_VECTOR)
5179 if (!create_vector_members(var, me)) {
5186 /* deal with global variables, fields, functions */
5187 if (!nofields && var->expression.vtype == TYPE_FIELD && parser->tok != '=') {
5188 var->isfield = true;
5189 vec_push(parser->fields, (ast_expression*)var);
5190 util_htset(parser->htfields, var->name, var);
5192 for (i = 0; i < 3; ++i) {
5193 vec_push(parser->fields, (ast_expression*)me[i]);
5194 util_htset(parser->htfields, me[i]->name, me[i]);
5199 parser_addglobal(parser, var->name, (ast_expression*)var);
5201 for (i = 0; i < 3; ++i) {
5202 parser_addglobal(parser, me[i]->name, (ast_expression*)me[i]);
5208 /* a static adds itself to be generated like any other global
5209 * but is added to the local namespace instead
5211 char *defname = NULL;
5212 size_t prefix_len, ln;
5214 ln = strlen(parser->function->name);
5215 vec_append(defname, ln, parser->function->name);
5217 vec_append(defname, 2, "::");
5218 /* remember the length up to here */
5219 prefix_len = vec_size(defname);
5221 /* Add it to the local scope */
5222 util_htset(vec_last(parser->variables), var->name, (void*)var);
5226 vec_last(parser->correct_variables),
5227 &vec_last(parser->correct_variables_score),
5231 /* now rename the global */
5232 ln = strlen(var->name);
5233 vec_append(defname, ln, var->name);
5234 ast_value_set_name(var, defname);
5236 /* push it to the to-be-generated globals */
5237 vec_push(parser->globals, (ast_expression*)var);
5239 /* same game for the vector members */
5241 for (i = 0; i < 3; ++i) {
5242 util_htset(vec_last(parser->variables), me[i]->name, (void*)(me[i]));
5246 vec_last(parser->correct_variables),
5247 &vec_last(parser->correct_variables_score),
5251 vec_shrinkto(defname, prefix_len);
5252 ln = strlen(me[i]->name);
5253 vec_append(defname, ln, me[i]->name);
5254 ast_member_set_name(me[i], defname);
5256 vec_push(parser->globals, (ast_expression*)me[i]);
5261 vec_push(localblock->locals, var);
5262 parser_addlocal(parser, var->name, (ast_expression*)var);
5264 for (i = 0; i < 3; ++i) {
5265 parser_addlocal(parser, me[i]->name, (ast_expression*)me[i]);
5266 ast_block_collect(localblock, (ast_expression*)me[i]);
5272 me[0] = me[1] = me[2] = NULL;
5277 if (var->expression.vtype == TYPE_ARRAY) {
5279 snprintf(name, sizeof(name), "%s##SET", var->name);
5280 if (!parser_create_array_setter(parser, var, name))
5282 snprintf(name, sizeof(name), "%s##GET", var->name);
5283 if (!parser_create_array_getter(parser, var, var->expression.next, name))
5286 else if (!localblock && !nofields &&
5287 var->expression.vtype == TYPE_FIELD &&
5288 var->expression.next->expression.vtype == TYPE_ARRAY)
5291 ast_expression *telem;
5293 ast_value *array = (ast_value*)var->expression.next;
5295 if (!ast_istype(var->expression.next, ast_value)) {
5296 parseerror(parser, "internal error: field element type must be an ast_value");
5300 snprintf(name, sizeof(name), "%s##SETF", var->name);
5301 if (!parser_create_array_field_setter(parser, array, name))
5304 telem = ast_type_copy(ast_ctx(var), array->expression.next);
5305 tfield = ast_value_new(ast_ctx(var), "<.type>", TYPE_FIELD);
5306 tfield->expression.next = telem;
5307 snprintf(name, sizeof(name), "%s##GETFP", var->name);
5308 if (!parser_create_array_getter(parser, array, (ast_expression*)tfield, name)) {
5316 if (parser->tok == ';') {
5317 ast_delete(basetype);
5318 if (!parser_next(parser)) {
5319 parseerror(parser, "error after variable declaration");
5325 if (parser->tok == ',')
5329 if (!var || (!localblock && !nofields && basetype->expression.vtype == TYPE_FIELD)) {
5332 parseerror(parser, "missing comma or semicolon while parsing variables");
5336 if (localblock && opts.standard == COMPILER_QCC) {
5337 if (parsewarning(parser, WARN_LOCAL_CONSTANTS,
5338 "initializing expression turns variable `%s` into a constant in this standard",
5345 if (parser->tok != '{') {
5346 if (parser->tok != '=') {
5347 parseerror(parser, "missing semicolon or initializer, got: `%s`", parser_tokval(parser));
5351 if (!parser_next(parser)) {
5352 parseerror(parser, "error parsing initializer");
5356 else if (opts.standard == COMPILER_QCC) {
5357 parseerror(parser, "expected '=' before function body in this standard");
5360 if (parser->tok == '#') {
5361 ast_function *func = NULL;
5364 parseerror(parser, "cannot declare builtins within functions");
5367 if (var->expression.vtype != TYPE_FUNCTION) {
5368 parseerror(parser, "unexpected builtin number, '%s' is not a function", var->name);
5371 if (!parser_next(parser)) {
5372 parseerror(parser, "expected builtin number");
5375 if (parser->tok != TOKEN_INTCONST) {
5376 parseerror(parser, "builtin number must be an integer constant");
5379 if (parser_token(parser)->constval.i < 0) {
5380 parseerror(parser, "builtin number must be an integer greater than zero");
5384 if (var->hasvalue) {
5385 (void)!parsewarning(parser, WARN_DOUBLE_DECLARATION,
5386 "builtin `%s` has already been defined\n"
5387 " -> previous declaration here: %s:%i",
5388 var->name, ast_ctx(var).file, (int)ast_ctx(var).line);
5392 func = ast_function_new(ast_ctx(var), var->name, var);
5394 parseerror(parser, "failed to allocate function for `%s`", var->name);
5397 vec_push(parser->functions, func);
5399 func->builtin = -parser_token(parser)->constval.i-1;
5402 if (!parser_next(parser)) {
5403 parseerror(parser, "expected comma or semicolon");
5405 ast_function_delete(func);
5406 var->constval.vfunc = NULL;
5410 else if (parser->tok == '{' || parser->tok == '[')
5413 parseerror(parser, "cannot declare functions within functions");
5418 ast_ctx(proto) = parser_ctx(parser);
5420 if (!parse_function_body(parser, var))
5422 ast_delete(basetype);
5423 for (i = 0; i < vec_size(parser->gotos); ++i)
5424 parseerror(parser, "undefined label: `%s`", parser->gotos[i]->name);
5425 vec_free(parser->gotos);
5426 vec_free(parser->labels);
5429 ast_expression *cexp;
5432 cexp = parse_expression_leave(parser, true, false, false);
5437 cval = (ast_value*)cexp;
5438 if (cval != parser->nil &&
5439 (!ast_istype(cval, ast_value) || ((!cval->hasvalue || cval->cvq != CV_CONST) && !cval->isfield))
5442 parseerror(parser, "cannot initialize a global constant variable with a non-constant expression");
5446 if (!OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
5447 qualifier != CV_VAR)
5449 var->cvq = CV_CONST;
5451 if (cval == parser->nil)
5452 var->expression.flags |= AST_FLAG_INITIALIZED;
5455 var->hasvalue = true;
5456 if (cval->expression.vtype == TYPE_STRING)
5457 var->constval.vstring = parser_strdup(cval->constval.vstring);
5458 else if (cval->expression.vtype == TYPE_FIELD)
5459 var->constval.vfield = cval;
5461 memcpy(&var->constval, &cval->constval, sizeof(var->constval));
5467 shunt sy = { NULL, NULL };
5470 vec_push(sy.out, syexp(ast_ctx(var), (ast_expression*)var));
5471 vec_push(sy.out, syexp(ast_ctx(cexp), (ast_expression*)cexp));
5472 vec_push(sy.ops, syop(ast_ctx(var), parser->assign_op));
5473 if (!parser_sy_apply_operator(parser, &sy))
5476 if (vec_size(sy.out) != 1 && vec_size(sy.ops) != 0)
5477 parseerror(parser, "internal error: leaked operands");
5478 if (!ast_block_add_expr(localblock, (ast_expression*)sy.out[0].out))
5488 if (parser->tok == ',') {
5489 if (!parser_next(parser)) {
5490 parseerror(parser, "expected another variable");
5494 if (parser->tok != TOKEN_IDENT) {
5495 parseerror(parser, "expected another variable");
5498 var = ast_value_copy(basetype);
5500 ast_value_set_name(var, parser_tokval(parser));
5501 if (!parser_next(parser)) {
5502 parseerror(parser, "error parsing variable declaration");
5508 if (parser->tok != ';') {
5509 parseerror(parser, "missing semicolon after variables");
5513 if (!parser_next(parser)) {
5514 parseerror(parser, "parse error after variable declaration");
5518 ast_delete(basetype);
5522 if (cleanvar && var)
5524 ast_delete(basetype);
5528 ast_delete(basetype);
5529 if (cleanvar && var)
5531 if (me[0]) ast_member_delete(me[0]);
5532 if (me[1]) ast_member_delete(me[1]);
5533 if (me[2]) ast_member_delete(me[2]);
5537 static bool parser_global_statement(parser_t *parser)
5541 bool is_static = false;
5542 uint32_t qflags = 0;
5543 ast_value *istype = NULL;
5544 char *vstring = NULL;
5546 if (parser->tok == TOKEN_IDENT)
5547 istype = parser_find_typedef(parser, parser_tokval(parser), 0);
5549 if (istype || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
5551 return parse_variable(parser, NULL, false, CV_NONE, istype, false, false, 0, NULL);
5553 else if (parse_qualifiers(parser, false, &cvq, &noref, &is_static, &qflags, &vstring))
5555 if (cvq == CV_WRONG)
5557 return parse_variable(parser, NULL, true, cvq, NULL, noref, is_static, qflags, vstring);
5559 else if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "enum"))
5561 return parse_enum(parser);
5563 else if (parser->tok == TOKEN_KEYWORD)
5565 if (!strcmp(parser_tokval(parser), "typedef")) {
5566 if (!parser_next(parser)) {
5567 parseerror(parser, "expected type definition after 'typedef'");
5570 return parse_typedef(parser);
5572 parseerror(parser, "unrecognized keyword `%s`", parser_tokval(parser));
5575 else if (parser->tok == '#')
5577 return parse_pragma(parser);
5579 else if (parser->tok == '$')
5581 if (!parser_next(parser)) {
5582 parseerror(parser, "parse error");
5588 parseerror(parser, "unexpected token: %s", parser->lex->tok.value);
5594 static uint16_t progdefs_crc_sum(uint16_t old, const char *str)
5596 return util_crc16(old, str, strlen(str));
5599 static void progdefs_crc_file(const char *str)
5601 /* write to progdefs.h here */
5605 static uint16_t progdefs_crc_both(uint16_t old, const char *str)
5607 old = progdefs_crc_sum(old, str);
5608 progdefs_crc_file(str);
5612 static void generate_checksum(parser_t *parser)
5614 uint16_t crc = 0xFFFF;
5618 crc = progdefs_crc_both(crc, "\n/* file generated by qcc, do not modify */\n\ntypedef struct\n{");
5619 crc = progdefs_crc_sum(crc, "\tint\tpad[28];\n");
5621 progdefs_crc_file("\tint\tpad;\n");
5622 progdefs_crc_file("\tint\tofs_return[3];\n");
5623 progdefs_crc_file("\tint\tofs_parm0[3];\n");
5624 progdefs_crc_file("\tint\tofs_parm1[3];\n");
5625 progdefs_crc_file("\tint\tofs_parm2[3];\n");
5626 progdefs_crc_file("\tint\tofs_parm3[3];\n");
5627 progdefs_crc_file("\tint\tofs_parm4[3];\n");
5628 progdefs_crc_file("\tint\tofs_parm5[3];\n");
5629 progdefs_crc_file("\tint\tofs_parm6[3];\n");
5630 progdefs_crc_file("\tint\tofs_parm7[3];\n");
5632 for (i = 0; i < parser->crc_globals; ++i) {
5633 if (!ast_istype(parser->globals[i], ast_value))
5635 value = (ast_value*)(parser->globals[i]);
5636 switch (value->expression.vtype) {
5637 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
5638 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
5639 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
5640 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
5642 crc = progdefs_crc_both(crc, "\tint\t");
5645 crc = progdefs_crc_both(crc, value->name);
5646 crc = progdefs_crc_both(crc, ";\n");
5648 crc = progdefs_crc_both(crc, "} globalvars_t;\n\ntypedef struct\n{\n");
5649 for (i = 0; i < parser->crc_fields; ++i) {
5650 if (!ast_istype(parser->fields[i], ast_value))
5652 value = (ast_value*)(parser->fields[i]);
5653 switch (value->expression.next->expression.vtype) {
5654 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
5655 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
5656 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
5657 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
5659 crc = progdefs_crc_both(crc, "\tint\t");
5662 crc = progdefs_crc_both(crc, value->name);
5663 crc = progdefs_crc_both(crc, ";\n");
5665 crc = progdefs_crc_both(crc, "} entvars_t;\n\n");
5670 static parser_t *parser;
5677 parser = (parser_t*)mem_a(sizeof(parser_t));
5681 memset(parser, 0, sizeof(*parser));
5683 for (i = 0; i < operator_count; ++i) {
5684 if (operators[i].id == opid1('=')) {
5685 parser->assign_op = operators+i;
5689 if (!parser->assign_op) {
5690 printf("internal error: initializing parser: failed to find assign operator\n");
5695 vec_push(parser->variables, parser->htfields = util_htnew(PARSER_HT_SIZE));
5696 vec_push(parser->variables, parser->htglobals = util_htnew(PARSER_HT_SIZE));
5697 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
5698 vec_push(parser->_blocktypedefs, 0);
5701 vec_push(parser->correct_variables, correct_trie_new());
5702 vec_push(parser->correct_variables_score, NULL);
5704 empty_ctx.file = "<internal>";
5706 parser->nil = ast_value_new(empty_ctx, "nil", TYPE_NIL);
5707 parser->nil->cvq = CV_CONST;
5708 if (OPTS_FLAG(UNTYPED_NIL))
5709 util_htset(parser->htglobals, "nil", (void*)parser->nil);
5711 parser->const_vec[0] = ast_value_new(empty_ctx, "<vector.x>", TYPE_NOEXPR);
5712 parser->const_vec[1] = ast_value_new(empty_ctx, "<vector.y>", TYPE_NOEXPR);
5713 parser->const_vec[2] = ast_value_new(empty_ctx, "<vector.z>", TYPE_NOEXPR);
5715 if (opts.add_info) {
5716 parser->reserved_version = ast_value_new(empty_ctx, "reserved:version", TYPE_STRING);
5717 parser->reserved_version->cvq = CV_CONST;
5718 parser->reserved_version->hasvalue = true;
5719 parser->reserved_version->expression.flags |= AST_FLAG_INCLUDE_DEF;
5720 parser->reserved_version->constval.vstring = util_strdup(GMQCC_FULL_VERSION_STRING);
5722 parser->reserved_version = NULL;
5727 bool parser_compile()
5729 /* initial lexer/parser state */
5730 parser->lex->flags.noops = true;
5732 if (parser_next(parser))
5734 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
5736 if (!parser_global_statement(parser)) {
5737 if (parser->tok == TOKEN_EOF)
5738 parseerror(parser, "unexpected eof");
5739 else if (compile_errors)
5740 parseerror(parser, "there have been errors, bailing out");
5741 lex_close(parser->lex);
5747 parseerror(parser, "parse error");
5748 lex_close(parser->lex);
5753 lex_close(parser->lex);
5756 return !compile_errors;
5759 bool parser_compile_file(const char *filename)
5761 parser->lex = lex_open(filename);
5763 con_err("failed to open file \"%s\"\n", filename);
5766 return parser_compile();
5769 bool parser_compile_string(const char *name, const char *str, size_t len)
5771 parser->lex = lex_open_string(str, len, name);
5773 con_err("failed to create lexer for string \"%s\"\n", name);
5776 return parser_compile();
5779 void parser_cleanup()
5782 for (i = 0; i < vec_size(parser->accessors); ++i) {
5783 ast_delete(parser->accessors[i]->constval.vfunc);
5784 parser->accessors[i]->constval.vfunc = NULL;
5785 ast_delete(parser->accessors[i]);
5787 for (i = 0; i < vec_size(parser->functions); ++i) {
5788 ast_delete(parser->functions[i]);
5790 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
5791 ast_delete(parser->imm_vector[i]);
5793 for (i = 0; i < vec_size(parser->imm_string); ++i) {
5794 ast_delete(parser->imm_string[i]);
5796 for (i = 0; i < vec_size(parser->imm_float); ++i) {
5797 ast_delete(parser->imm_float[i]);
5799 for (i = 0; i < vec_size(parser->fields); ++i) {
5800 ast_delete(parser->fields[i]);
5802 for (i = 0; i < vec_size(parser->globals); ++i) {
5803 ast_delete(parser->globals[i]);
5805 vec_free(parser->accessors);
5806 vec_free(parser->functions);
5807 vec_free(parser->imm_vector);
5808 vec_free(parser->imm_string);
5809 vec_free(parser->imm_float);
5810 vec_free(parser->globals);
5811 vec_free(parser->fields);
5813 for (i = 0; i < vec_size(parser->variables); ++i)
5814 util_htdel(parser->variables[i]);
5815 vec_free(parser->variables);
5816 vec_free(parser->_blocklocals);
5817 vec_free(parser->_locals);
5820 for (i = 0; i < vec_size(parser->correct_variables); ++i) {
5821 correct_del(parser->correct_variables[i], parser->correct_variables_score[i]);
5823 vec_free(parser->correct_variables);
5824 vec_free(parser->correct_variables_score);
5827 for (i = 0; i < vec_size(parser->_typedefs); ++i)
5828 ast_delete(parser->_typedefs[i]);
5829 vec_free(parser->_typedefs);
5830 for (i = 0; i < vec_size(parser->typedefs); ++i)
5831 util_htdel(parser->typedefs[i]);
5832 vec_free(parser->typedefs);
5833 vec_free(parser->_blocktypedefs);
5835 vec_free(parser->_block_ctx);
5837 vec_free(parser->labels);
5838 vec_free(parser->gotos);
5839 vec_free(parser->breaks);
5840 vec_free(parser->continues);
5842 ast_value_delete(parser->nil);
5844 ast_value_delete(parser->const_vec[0]);
5845 ast_value_delete(parser->const_vec[1]);
5846 ast_value_delete(parser->const_vec[2]);
5851 bool parser_finish(const char *output)
5857 if (compile_errors) {
5858 con_out("*** there were compile errors\n");
5862 ir = ir_builder_new("gmqcc_out");
5864 con_out("failed to allocate builder\n");
5868 for (i = 0; i < vec_size(parser->fields); ++i) {
5871 if (!ast_istype(parser->fields[i], ast_value))
5873 field = (ast_value*)parser->fields[i];
5874 hasvalue = field->hasvalue;
5875 field->hasvalue = false;
5876 if (!ast_global_codegen((ast_value*)field, ir, true)) {
5877 con_out("failed to generate field %s\n", field->name);
5878 ir_builder_delete(ir);
5883 ast_expression *subtype;
5884 field->hasvalue = true;
5885 subtype = field->expression.next;
5886 ifld = ir_builder_create_field(ir, field->name, subtype->expression.vtype);
5887 if (subtype->expression.vtype == TYPE_FIELD)
5888 ifld->fieldtype = subtype->expression.next->expression.vtype;
5889 else if (subtype->expression.vtype == TYPE_FUNCTION)
5890 ifld->outtype = subtype->expression.next->expression.vtype;
5891 (void)!ir_value_set_field(field->ir_v, ifld);
5894 for (i = 0; i < vec_size(parser->globals); ++i) {
5896 if (!ast_istype(parser->globals[i], ast_value))
5898 asvalue = (ast_value*)(parser->globals[i]);
5899 if (!asvalue->uses && !asvalue->hasvalue && asvalue->expression.vtype != TYPE_FUNCTION) {
5900 retval = retval && !genwarning(ast_ctx(asvalue), WARN_UNUSED_VARIABLE,
5901 "unused global: `%s`", asvalue->name);
5903 if (!ast_global_codegen(asvalue, ir, false)) {
5904 con_out("failed to generate global %s\n", asvalue->name);
5905 ir_builder_delete(ir);
5909 /* Build function vararg accessor ast tree now before generating
5910 * immediates, because the accessors may add new immediates
5912 for (i = 0; i < vec_size(parser->functions); ++i) {
5913 ast_function *f = parser->functions[i];
5915 if (parser->max_param_count > vec_size(f->vtype->expression.params)) {
5916 f->varargs->expression.count = parser->max_param_count - vec_size(f->vtype->expression.params);
5917 if (!parser_create_array_setter_impl(parser, f->varargs)) {
5918 con_out("failed to generate vararg setter for %s\n", f->name);
5919 ir_builder_delete(ir);
5922 if (!parser_create_array_getter_impl(parser, f->varargs)) {
5923 con_out("failed to generate vararg getter for %s\n", f->name);
5924 ir_builder_delete(ir);
5928 ast_delete(f->varargs);
5933 /* Now we can generate immediates */
5934 for (i = 0; i < vec_size(parser->imm_float); ++i) {
5935 if (!ast_global_codegen(parser->imm_float[i], ir, false)) {
5936 con_out("failed to generate global %s\n", parser->imm_float[i]->name);
5937 ir_builder_delete(ir);
5941 for (i = 0; i < vec_size(parser->imm_string); ++i) {
5942 if (!ast_global_codegen(parser->imm_string[i], ir, false)) {
5943 con_out("failed to generate global %s\n", parser->imm_string[i]->name);
5944 ir_builder_delete(ir);
5948 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
5949 if (!ast_global_codegen(parser->imm_vector[i], ir, false)) {
5950 con_out("failed to generate global %s\n", parser->imm_vector[i]->name);
5951 ir_builder_delete(ir);
5955 for (i = 0; i < vec_size(parser->globals); ++i) {
5957 if (!ast_istype(parser->globals[i], ast_value))
5959 asvalue = (ast_value*)(parser->globals[i]);
5960 if (!(asvalue->expression.flags & AST_FLAG_INITIALIZED))
5962 if (asvalue->cvq == CV_CONST && !asvalue->hasvalue)
5963 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_CONSTANT,
5964 "uninitialized constant: `%s`",
5966 else if ((asvalue->cvq == CV_NONE || asvalue->cvq == CV_CONST) && !asvalue->hasvalue)
5967 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_GLOBAL,
5968 "uninitialized global: `%s`",
5971 if (!ast_generate_accessors(asvalue, ir)) {
5972 ir_builder_delete(ir);
5976 for (i = 0; i < vec_size(parser->fields); ++i) {
5978 asvalue = (ast_value*)(parser->fields[i]->expression.next);
5980 if (!ast_istype((ast_expression*)asvalue, ast_value))
5982 if (asvalue->expression.vtype != TYPE_ARRAY)
5984 if (!ast_generate_accessors(asvalue, ir)) {
5985 ir_builder_delete(ir);
5989 if (parser->reserved_version &&
5990 !ast_global_codegen(parser->reserved_version, ir, false))
5992 con_out("failed to generate reserved::version");
5993 ir_builder_delete(ir);
5996 for (i = 0; i < vec_size(parser->functions); ++i) {
5997 ast_function *f = parser->functions[i];
5998 if (!ast_function_codegen(f, ir)) {
5999 con_out("failed to generate function %s\n", f->name);
6000 ir_builder_delete(ir);
6005 ir_builder_dump(ir, con_out);
6006 for (i = 0; i < vec_size(parser->functions); ++i) {
6007 if (!ir_function_finalize(parser->functions[i]->ir_func)) {
6008 con_out("failed to finalize function %s\n", parser->functions[i]->name);
6009 ir_builder_delete(ir);
6014 if (compile_Werrors) {
6015 con_out("*** there were warnings treated as errors\n");
6016 compile_show_werrors();
6022 ir_builder_dump(ir, con_out);
6024 generate_checksum(parser);
6026 if (!ir_builder_generate(ir, output)) {
6027 con_out("*** failed to generate output file\n");
6028 ir_builder_delete(ir);
6033 ir_builder_delete(ir);