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
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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
28 #define PARSER_HT_LOCALS 2
29 #define PARSER_HT_SIZE 512
30 #define TYPEDEF_HT_SIZE 512
32 static ast_expression * const intrinsic_debug_typestring = (ast_expression*)0x1;
34 static void parser_enterblock(parser_t *parser);
35 static bool parser_leaveblock(parser_t *parser);
36 static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e);
37 static void parser_addglobal(parser_t *parser, const char *name, ast_expression *e);
38 static bool parse_typedef(parser_t *parser);
39 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);
40 static ast_block* parse_block(parser_t *parser);
41 static bool parse_block_into(parser_t *parser, ast_block *block);
42 static bool parse_statement_or_block(parser_t *parser, ast_expression **out);
43 static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases);
44 static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels);
45 static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels);
46 static ast_value* parser_create_array_setter_proto(parser_t *parser, ast_value *array, const char *funcname);
47 static ast_value* parser_create_array_getter_proto(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname);
48 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
50 static void parseerror(parser_t *parser, const char *fmt, ...)
54 vcompile_error(parser->lex->tok.ctx, fmt, ap);
58 /* returns true if it counts as an error */
59 static bool GMQCC_WARN parsewarning(parser_t *parser, int warntype, const char *fmt, ...)
64 r = vcompile_warning(parser->lex->tok.ctx, warntype, fmt, ap);
69 /**********************************************************************
73 static bool parser_next(parser_t *parser)
75 /* lex_do kills the previous token */
76 parser->tok = lex_do(parser->lex);
77 if (parser->tok == TOKEN_EOF)
79 if (parser->tok >= TOKEN_ERROR) {
80 parseerror(parser, "lex error");
86 #define parser_tokval(p) ((p)->lex->tok.value)
87 #define parser_token(p) (&((p)->lex->tok))
89 char *parser_strdup(const char *str)
92 /* actually dup empty strings */
93 char *out = (char*)mem_a(1);
97 return util_strdup(str);
100 static ast_expression* parser_find_field(parser_t *parser, const char *name)
102 return ( ast_expression*)util_htget(parser->htfields, name);
105 static ast_expression* parser_find_label(parser_t *parser, const char *name)
108 for(i = 0; i < vec_size(parser->labels); i++)
109 if (!strcmp(parser->labels[i]->name, name))
110 return (ast_expression*)parser->labels[i];
114 static ast_expression* parser_find_global(parser_t *parser, const char *name)
116 ast_expression *var = (ast_expression*)util_htget(parser->aliases, parser_tokval(parser));
119 return (ast_expression*)util_htget(parser->htglobals, name);
122 static ast_expression* parser_find_param(parser_t *parser, const char *name)
126 if (!parser->function)
128 fun = parser->function->vtype;
129 for (i = 0; i < vec_size(fun->expression.params); ++i) {
130 if (!strcmp(fun->expression.params[i]->name, name))
131 return (ast_expression*)(fun->expression.params[i]);
136 static ast_expression* parser_find_local(parser_t *parser, const char *name, size_t upto, bool *isparam)
141 hash = util_hthash(parser->htglobals, name);
144 for (i = vec_size(parser->variables); i > upto;) {
146 if ( (e = (ast_expression*)util_htgeth(parser->variables[i], name, hash)) )
150 return parser_find_param(parser, name);
153 static ast_expression* parser_find_var(parser_t *parser, const char *name)
157 v = parser_find_local(parser, name, 0, &dummy);
158 if (!v) v = parser_find_global(parser, name);
162 static ast_value* parser_find_typedef(parser_t *parser, const char *name, size_t upto)
166 hash = util_hthash(parser->typedefs[0], name);
168 for (i = vec_size(parser->typedefs); i > upto;) {
170 if ( (e = (ast_value*)util_htgeth(parser->typedefs[i], name, hash)) )
176 /* include intrinsics */
181 size_t etype; /* 0 = expression, others are operators */
185 ast_block *block; /* for commas and function calls */
204 static sy_elem syexp(lex_ctx_t ctx, ast_expression *v) {
215 static sy_elem syblock(lex_ctx_t ctx, ast_block *v) {
219 e.out = (ast_expression*)v;
226 static sy_elem syop(lex_ctx_t ctx, const oper_info *op) {
228 e.etype = 1 + (op - operators);
237 static sy_elem syparen(lex_ctx_t ctx, size_t off) {
248 /* With regular precedence rules, ent.foo[n] is the same as (ent.foo)[n],
249 * so we need to rotate it to become ent.(foo[n]).
251 static bool rotate_entfield_array_index_nodes(ast_expression **out)
253 ast_array_index *index, *oldindex;
254 ast_entfield *entfield;
258 ast_expression *entity;
260 lex_ctx_t ctx = ast_ctx(*out);
262 if (!ast_istype(*out, ast_array_index))
264 index = (ast_array_index*)*out;
266 if (!ast_istype(index->array, ast_entfield))
268 entfield = (ast_entfield*)index->array;
270 if (!ast_istype(entfield->field, ast_value))
272 field = (ast_value*)entfield->field;
275 entity = entfield->entity;
279 index = ast_array_index_new(ctx, (ast_expression*)field, sub);
280 entfield = ast_entfield_new(ctx, entity, (ast_expression*)index);
281 *out = (ast_expression*)entfield;
283 oldindex->array = NULL;
284 oldindex->index = NULL;
285 ast_delete(oldindex);
290 static bool parser_sy_apply_operator(parser_t *parser, shunt *sy)
294 ast_expression *out = NULL;
295 ast_expression *exprs[3];
296 ast_block *blocks[3];
297 ast_value *asvalue[3];
298 ast_binstore *asbinstore;
299 size_t i, assignop, addop, subop;
300 qcint_t generated_op = 0;
305 if (!vec_size(sy->ops)) {
306 parseerror(parser, "internal error: missing operator");
310 if (vec_last(sy->ops).isparen) {
311 parseerror(parser, "unmatched parenthesis");
315 op = &operators[vec_last(sy->ops).etype - 1];
316 ctx = vec_last(sy->ops).ctx;
318 if (vec_size(sy->out) < op->operands) {
319 compile_error(ctx, "internal error: not enough operands: %i (operator %s (%i))", vec_size(sy->out),
320 op->op, (int)op->id);
324 vec_shrinkby(sy->ops, 1);
326 /* op(:?) has no input and no output */
330 vec_shrinkby(sy->out, op->operands);
331 for (i = 0; i < op->operands; ++i) {
332 exprs[i] = sy->out[vec_size(sy->out)+i].out;
333 blocks[i] = sy->out[vec_size(sy->out)+i].block;
334 asvalue[i] = (ast_value*)exprs[i];
336 if (exprs[i]->vtype == TYPE_NOEXPR &&
337 !(i != 0 && op->id == opid2('?',':')) &&
338 !(i == 1 && op->id == opid1('.')))
340 if (ast_istype(exprs[i], ast_label))
341 compile_error(ast_ctx(exprs[i]), "expected expression, got an unknown identifier");
343 compile_error(ast_ctx(exprs[i]), "not an expression");
344 (void)!compile_warning(ast_ctx(exprs[i]), WARN_DEBUG, "expression %u\n", (unsigned int)i);
348 if (blocks[0] && !vec_size(blocks[0]->exprs) && op->id != opid1(',')) {
349 compile_error(ctx, "internal error: operator cannot be applied on empty blocks");
353 #define NotSameType(T) \
354 (exprs[0]->vtype != exprs[1]->vtype || \
355 exprs[0]->vtype != T)
357 /* preform any constant folding on operator usage first */
358 /*if ((out = fold_op(parser->fold, op, exprs)))*/
364 compile_error(ctx, "internal error: unhandled operator: %s (%i)", op->op, (int)op->id);
368 if (exprs[0]->vtype == TYPE_VECTOR &&
369 exprs[1]->vtype == TYPE_NOEXPR)
371 if (exprs[1] == (ast_expression*)parser->const_vec[0])
372 out = (ast_expression*)ast_member_new(ctx, exprs[0], 0, NULL);
373 else if (exprs[1] == (ast_expression*)parser->const_vec[1])
374 out = (ast_expression*)ast_member_new(ctx, exprs[0], 1, NULL);
375 else if (exprs[1] == (ast_expression*)parser->const_vec[2])
376 out = (ast_expression*)ast_member_new(ctx, exprs[0], 2, NULL);
378 compile_error(ctx, "access to invalid vector component");
382 else if (exprs[0]->vtype == TYPE_ENTITY) {
383 if (exprs[1]->vtype != TYPE_FIELD) {
384 compile_error(ast_ctx(exprs[1]), "type error: right hand of member-operand should be an entity-field");
387 out = (ast_expression*)ast_entfield_new(ctx, exprs[0], exprs[1]);
389 else if (exprs[0]->vtype == TYPE_VECTOR) {
390 compile_error(ast_ctx(exprs[1]), "vectors cannot be accessed this way");
394 compile_error(ast_ctx(exprs[1]), "type error: member-of operator on something that is not an entity or vector");
400 if (exprs[0]->vtype != TYPE_ARRAY &&
401 !(exprs[0]->vtype == TYPE_FIELD &&
402 exprs[0]->next->vtype == TYPE_ARRAY))
404 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
405 compile_error(ast_ctx(exprs[0]), "cannot index value of type %s", ty1);
408 if (exprs[1]->vtype != TYPE_FLOAT) {
409 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
410 compile_error(ast_ctx(exprs[1]), "index must be of type float, not %s", ty1);
413 out = (ast_expression*)ast_array_index_new(ctx, exprs[0], exprs[1]);
414 if (rotate_entfield_array_index_nodes(&out))
417 /* This is not broken in fteqcc anymore */
418 if (OPTS_OPTION_U32(OPTION_STANDARD) != COMPILER_GMQCC) {
419 /* this error doesn't need to make us bail out */
420 (void)!parsewarning(parser, WARN_EXTENSIONS,
421 "accessing array-field members of an entity without parenthesis\n"
422 " -> this is an extension from -std=gmqcc");
429 if (vec_size(sy->paren) && vec_last(sy->paren) == PAREN_FUNC) {
430 vec_push(sy->out, syexp(ctx, exprs[0]));
431 vec_push(sy->out, syexp(ctx, exprs[1]));
432 vec_last(sy->argc)++;
436 if (!ast_block_add_expr(blocks[0], exprs[1]))
439 blocks[0] = ast_block_new(ctx);
440 if (!ast_block_add_expr(blocks[0], exprs[0]) ||
441 !ast_block_add_expr(blocks[0], exprs[1]))
446 ast_block_set_type(blocks[0], exprs[1]);
448 vec_push(sy->out, syblock(ctx, blocks[0]));
455 if (!(out = fold_op(parser->fold, op, exprs))) {
456 switch (exprs[0]->vtype) {
458 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F,
459 (ast_expression*)parser->fold->imm_float[0],
463 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V,
464 (ast_expression*)parser->fold->imm_vector[0],
468 compile_error(ctx, "invalid types used in expression: cannot negate type %s",
469 type_name[exprs[0]->vtype]);
476 if (!(out = fold_op(parser->fold, op, exprs))) {
477 switch (exprs[0]->vtype) {
479 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
482 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[0]);
485 if (OPTS_FLAG(TRUE_EMPTY_STRINGS))
486 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
488 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[0]);
490 /* we don't constant-fold NOT for these types */
492 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_ENT, exprs[0]);
495 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_FNC, exprs[0]);
498 compile_error(ctx, "invalid types used in expression: cannot logically negate type %s",
499 type_name[exprs[0]->vtype]);
506 if (exprs[0]->vtype != exprs[1]->vtype ||
507 (exprs[0]->vtype != TYPE_VECTOR && exprs[0]->vtype != TYPE_FLOAT) )
509 compile_error(ctx, "invalid types used in expression: cannot add type %s and %s",
510 type_name[exprs[0]->vtype],
511 type_name[exprs[1]->vtype]);
514 if (!(out = fold_op(parser->fold, op, exprs))) {
515 switch (exprs[0]->vtype) {
517 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F, exprs[0], exprs[1]);
520 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_V, exprs[0], exprs[1]);
523 compile_error(ctx, "invalid types used in expression: cannot add type %s and %s",
524 type_name[exprs[0]->vtype],
525 type_name[exprs[1]->vtype]);
531 if (exprs[0]->vtype != exprs[1]->vtype ||
532 (exprs[0]->vtype != TYPE_VECTOR && exprs[0]->vtype != TYPE_FLOAT))
534 compile_error(ctx, "invalid types used in expression: cannot subtract type %s from %s",
535 type_name[exprs[1]->vtype],
536 type_name[exprs[0]->vtype]);
539 if (!(out = fold_op(parser->fold, op, exprs))) {
540 switch (exprs[0]->vtype) {
542 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F, exprs[0], exprs[1]);
545 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V, exprs[0], exprs[1]);
548 compile_error(ctx, "invalid types used in expression: cannot subtract type %s from %s",
549 type_name[exprs[1]->vtype],
550 type_name[exprs[0]->vtype]);
556 if (exprs[0]->vtype != exprs[1]->vtype &&
557 !(exprs[0]->vtype == TYPE_VECTOR &&
558 exprs[1]->vtype == TYPE_FLOAT) &&
559 !(exprs[1]->vtype == TYPE_VECTOR &&
560 exprs[0]->vtype == TYPE_FLOAT)
563 compile_error(ctx, "invalid types used in expression: cannot multiply types %s and %s",
564 type_name[exprs[1]->vtype],
565 type_name[exprs[0]->vtype]);
568 if (!(out = fold_op(parser->fold, op, exprs))) {
569 switch (exprs[0]->vtype) {
571 if (exprs[1]->vtype == TYPE_VECTOR)
572 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_FV, exprs[0], exprs[1]);
574 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, exprs[0], exprs[1]);
577 if (exprs[1]->vtype == TYPE_FLOAT)
578 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_VF, exprs[0], exprs[1]);
580 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
583 compile_error(ctx, "invalid types used in expression: cannot multiply types %s and %s",
584 type_name[exprs[1]->vtype],
585 type_name[exprs[0]->vtype]);
591 if (exprs[1]->vtype != TYPE_FLOAT) {
592 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
593 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
594 compile_error(ctx, "invalid types used in expression: cannot divide types %s and %s", ty1, ty2);
597 if (!(out = fold_op(parser->fold, op, exprs))) {
598 if (exprs[0]->vtype == TYPE_FLOAT)
599 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F, exprs[0], exprs[1]);
600 else if (exprs[0]->vtype == TYPE_VECTOR)
601 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_VF, exprs[0], out);
604 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
605 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
606 compile_error(ctx, "invalid types used in expression: cannot divide types %s and %s", ty1, ty2);
613 if (NotSameType(TYPE_FLOAT)) {
614 compile_error(ctx, "invalid types used in expression: cannot perform modulo operation between types %s and %s",
615 type_name[exprs[0]->vtype],
616 type_name[exprs[1]->vtype]);
618 } else if (!(out = fold_op(parser->fold, op, exprs))) {
619 /* generate a call to __builtin_mod */
620 ast_expression *mod = intrin_func(parser, "mod");
621 ast_call *call = NULL;
622 if (!mod) return false; /* can return null for missing floor */
624 call = ast_call_new(parser_ctx(parser), mod);
625 vec_push(call->params, exprs[0]);
626 vec_push(call->params, exprs[1]);
628 out = (ast_expression*)call;
633 compile_error(ctx, "%= is unimplemented");
638 if (NotSameType(TYPE_FLOAT)) {
639 compile_error(ctx, "invalid types used in expression: cannot perform bit operations between types %s and %s",
640 type_name[exprs[0]->vtype],
641 type_name[exprs[1]->vtype]);
644 if (!(out = fold_op(parser->fold, op, exprs)))
645 out = (ast_expression*)ast_binary_new(ctx,
646 (op->id == opid1('|') ? INSTR_BITOR : INSTR_BITAND),
651 * Okay lets designate what the hell is an acceptable use
652 * of the ^ operator. In many vector processing units, XOR
653 * is allowed to be used on vectors, but only if the first
654 * operand is a vector, the second operand can be a float
655 * or vector. It's never legal for the first operand to be
656 * a float, and then the following operand to be a vector.
657 * Further more, the only time it is legal to do XOR otherwise
658 * is when both operand are floats. This nicely crafted if
659 * statement catches them all.
661 * In the event that the first operand is a vector, two
662 * possible situations can arise, thus, each element of
663 * vector A (operand A) is exclusive-ORed with the corresponding
664 * element of vector B (operand B), If B is scalar, the
665 * scalar value is first replicated for each element.
667 * The QCVM itself lacks a BITXOR instruction. Thus emulating
668 * the mathematics of it is required. The following equation
669 * is used: (LHS | RHS) & ~(LHS & RHS). However, due to the
670 * QCVM also lacking a BITNEG instruction, we need to emulate
671 * ~FOO with -1 - FOO, the whole process becoming this nicely
672 * crafted expression: (LHS | RHS) & (-1 - (LHS & RHS)).
674 * When A is not scalar, this process is repeated for all
675 * components of vector A with the value in operand B,
676 * only if operand B is scalar. When A is not scalar, and B
677 * is also not scalar, this process is repeated for all
678 * components of the vector A with the components of vector B.
679 * Finally when A is scalar and B is scalar, this process is
680 * simply used once for A and B being LHS and RHS respectfully.
682 * Yes the semantics are a bit strange (no pun intended).
683 * But then again BITXOR is strange itself, consdering it's
684 * commutative, assocative, and elements of the BITXOR operation
685 * are their own inverse.
687 if ( !(exprs[0]->vtype == TYPE_FLOAT && exprs[1]->vtype == TYPE_FLOAT) &&
688 !(exprs[0]->vtype == TYPE_VECTOR && exprs[1]->vtype == TYPE_FLOAT) &&
689 !(exprs[0]->vtype == TYPE_VECTOR && exprs[1]->vtype == TYPE_VECTOR))
691 compile_error(ctx, "invalid types used in expression: cannot perform bit operations between types %s and %s",
692 type_name[exprs[0]->vtype],
693 type_name[exprs[1]->vtype]);
697 if (!(out = fold_op(parser->fold, op, exprs))) {
699 * IF the first expression is float, the following will be too
700 * since scalar ^ vector is not allowed.
702 if (exprs[0]->vtype == TYPE_FLOAT) {
703 ast_binary *expr = ast_binary_new(
706 (ast_expression*)parser->fold->imm_float[2],
707 (ast_expression*)ast_binary_new(
714 expr->refs = AST_REF_NONE;
716 out = (ast_expression*)
720 (ast_expression*)ast_binary_new(
726 (ast_expression*)expr
730 * The first is a vector: vector is allowed to xor with vector and
731 * with scalar, branch here for the second operand.
733 if (exprs[1]->vtype == TYPE_VECTOR) {
735 * Xor all the values of the vector components against the
736 * vectors components in question.
738 compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-xor for vector against vector");
741 compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-xor for vector against float");
750 case opid3('<','<','='):
751 case opid3('>','>','='):
752 if(!(out = fold_op(parser->fold, op, exprs))) {
753 compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-shifts");
758 generated_op += 1; /* INSTR_OR */
760 generated_op += INSTR_AND;
761 if (OPTS_FLAG(PERL_LOGIC) && !ast_compare_type(exprs[0], exprs[1])) {
762 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
763 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
764 compile_error(ctx, "invalid types for logical operation with -fperl-logic: %s and %s", ty1, ty2);
767 if (!(out = fold_op(parser->fold, op, exprs))) {
768 for (i = 0; i < 2; ++i) {
769 if (OPTS_FLAG(CORRECT_LOGIC) && exprs[i]->vtype == TYPE_VECTOR) {
770 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[i]);
772 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
774 exprs[i] = out; out = NULL;
775 if (OPTS_FLAG(PERL_LOGIC)) {
776 /* here we want to keep the right expressions' type */
780 else if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && exprs[i]->vtype == TYPE_STRING) {
781 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[i]);
783 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
785 exprs[i] = out; out = NULL;
786 if (OPTS_FLAG(PERL_LOGIC)) {
787 /* here we want to keep the right expressions' type */
792 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
797 if (vec_last(sy->paren) != PAREN_TERNARY2) {
798 compile_error(ctx, "mismatched parenthesis/ternary");
802 if (!ast_compare_type(exprs[1], exprs[2])) {
803 ast_type_to_string(exprs[1], ty1, sizeof(ty1));
804 ast_type_to_string(exprs[2], ty2, sizeof(ty2));
805 compile_error(ctx, "operands of ternary expression must have the same type, got %s and %s", ty1, ty2);
808 if (!(out = fold_op(parser->fold, op, exprs)))
809 out = (ast_expression*)ast_ternary_new(ctx, exprs[0], exprs[1], exprs[2]);
812 case opid2('*', '*'):
813 if (NotSameType(TYPE_FLOAT)) {
814 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
815 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
816 compile_error(ctx, "invalid types used in exponentiation: %s and %s",
819 } else if (!(out = fold_op(parser->fold, op, exprs))) {
820 ast_call *gencall = ast_call_new(parser_ctx(parser), intrin_func(parser, "pow"));
821 vec_push(gencall->params, exprs[0]);
822 vec_push(gencall->params, exprs[1]);
823 out = (ast_expression*)gencall;
827 case opid3('<','=','>'): /* -1, 0, or 1 */
828 if (NotSameType(TYPE_FLOAT)) {
829 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
830 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
831 compile_error(ctx, "invalid types used in comparision: %s and %s",
835 } else if (!(out = fold_op(parser->fold, op, exprs))) {
836 ast_binary *eq = ast_binary_new(ctx, INSTR_EQ_F, exprs[0], exprs[1]);
838 eq->refs = AST_REF_NONE;
841 out = (ast_expression*)ast_ternary_new(ctx,
842 (ast_expression*)ast_binary_new(ctx, INSTR_LT, exprs[0], exprs[1]),
844 (ast_expression*)parser->fold->imm_float[2],
847 (ast_expression*)ast_ternary_new(ctx, (ast_expression*)eq,
849 (ast_expression*)parser->fold->imm_float[0],
852 (ast_expression*)parser->fold->imm_float[1]
862 generated_op += 1; /* INSTR_GT */
864 generated_op += 1; /* INSTR_LT */
865 case opid2('>', '='):
866 generated_op += 1; /* INSTR_GE */
867 case opid2('<', '='):
868 generated_op += INSTR_LE;
869 if (NotSameType(TYPE_FLOAT)) {
870 compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
871 type_name[exprs[0]->vtype],
872 type_name[exprs[1]->vtype]);
875 if (!(out = fold_op(parser->fold, op, exprs)))
876 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
878 case opid2('!', '='):
879 if (exprs[0]->vtype != exprs[1]->vtype) {
880 compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
881 type_name[exprs[0]->vtype],
882 type_name[exprs[1]->vtype]);
885 if (!(out = fold_op(parser->fold, op, exprs)))
886 out = (ast_expression*)ast_binary_new(ctx, type_ne_instr[exprs[0]->vtype], exprs[0], exprs[1]);
888 case opid2('=', '='):
889 if (exprs[0]->vtype != exprs[1]->vtype) {
890 compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
891 type_name[exprs[0]->vtype],
892 type_name[exprs[1]->vtype]);
895 if (!(out = fold_op(parser->fold, op, exprs)))
896 out = (ast_expression*)ast_binary_new(ctx, type_eq_instr[exprs[0]->vtype], exprs[0], exprs[1]);
900 if (ast_istype(exprs[0], ast_entfield)) {
901 ast_expression *field = ((ast_entfield*)exprs[0])->field;
902 if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) &&
903 exprs[0]->vtype == TYPE_FIELD &&
904 exprs[0]->next->vtype == TYPE_VECTOR)
906 assignop = type_storep_instr[TYPE_VECTOR];
909 assignop = type_storep_instr[exprs[0]->vtype];
910 if (assignop == VINSTR_END || !ast_compare_type(field->next, exprs[1]))
912 ast_type_to_string(field->next, ty1, sizeof(ty1));
913 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
914 if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
915 field->next->vtype == TYPE_FUNCTION &&
916 exprs[1]->vtype == TYPE_FUNCTION)
918 (void)!compile_warning(ctx, WARN_ASSIGN_FUNCTION_TYPES,
919 "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
922 compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
927 if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) &&
928 exprs[0]->vtype == TYPE_FIELD &&
929 exprs[0]->next->vtype == TYPE_VECTOR)
931 assignop = type_store_instr[TYPE_VECTOR];
934 assignop = type_store_instr[exprs[0]->vtype];
937 if (assignop == VINSTR_END) {
938 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
939 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
940 compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
942 else if (!ast_compare_type(exprs[0], exprs[1]))
944 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
945 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
946 if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
947 exprs[0]->vtype == TYPE_FUNCTION &&
948 exprs[1]->vtype == TYPE_FUNCTION)
950 (void)!compile_warning(ctx, WARN_ASSIGN_FUNCTION_TYPES,
951 "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
954 compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
957 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
958 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
960 out = (ast_expression*)ast_store_new(ctx, assignop, exprs[0], exprs[1]);
962 case opid3('+','+','P'):
963 case opid3('-','-','P'):
965 if (exprs[0]->vtype != TYPE_FLOAT) {
966 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
967 compile_error(ast_ctx(exprs[0]), "invalid type for prefix increment: %s", ty1);
970 if (op->id == opid3('+','+','P'))
974 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
975 compile_error(ast_ctx(exprs[0]), "assignment to constant `%s`", asvalue[0]->name);
977 if (ast_istype(exprs[0], ast_entfield)) {
978 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
980 (ast_expression*)parser->fold->imm_float[1]);
982 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
984 (ast_expression*)parser->fold->imm_float[1]);
987 case opid3('S','+','+'):
988 case opid3('S','-','-'):
990 if (exprs[0]->vtype != TYPE_FLOAT) {
991 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
992 compile_error(ast_ctx(exprs[0]), "invalid type for suffix increment: %s", ty1);
995 if (op->id == opid3('S','+','+')) {
1000 subop = INSTR_ADD_F;
1002 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1003 compile_error(ast_ctx(exprs[0]), "assignment to constant `%s`", asvalue[0]->name);
1005 if (ast_istype(exprs[0], ast_entfield)) {
1006 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
1008 (ast_expression*)parser->fold->imm_float[1]);
1010 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
1012 (ast_expression*)parser->fold->imm_float[1]);
1016 out = (ast_expression*)ast_binary_new(ctx, subop,
1018 (ast_expression*)parser->fold->imm_float[1]);
1020 case opid2('+','='):
1021 case opid2('-','='):
1022 if (exprs[0]->vtype != exprs[1]->vtype ||
1023 (exprs[0]->vtype != TYPE_VECTOR && exprs[0]->vtype != TYPE_FLOAT) )
1025 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1026 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1027 compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
1031 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1032 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1034 if (ast_istype(exprs[0], ast_entfield))
1035 assignop = type_storep_instr[exprs[0]->vtype];
1037 assignop = type_store_instr[exprs[0]->vtype];
1038 switch (exprs[0]->vtype) {
1040 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1041 (op->id == opid2('+','=') ? INSTR_ADD_F : INSTR_SUB_F),
1042 exprs[0], exprs[1]);
1045 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1046 (op->id == opid2('+','=') ? INSTR_ADD_V : INSTR_SUB_V),
1047 exprs[0], exprs[1]);
1050 compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
1051 type_name[exprs[0]->vtype],
1052 type_name[exprs[1]->vtype]);
1056 case opid2('*','='):
1057 case opid2('/','='):
1058 if (exprs[1]->vtype != TYPE_FLOAT ||
1059 !(exprs[0]->vtype == TYPE_FLOAT ||
1060 exprs[0]->vtype == TYPE_VECTOR))
1062 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1063 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1064 compile_error(ctx, "invalid types used in expression: %s and %s",
1068 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1069 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1071 if (ast_istype(exprs[0], ast_entfield))
1072 assignop = type_storep_instr[exprs[0]->vtype];
1074 assignop = type_store_instr[exprs[0]->vtype];
1075 switch (exprs[0]->vtype) {
1077 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1078 (op->id == opid2('*','=') ? INSTR_MUL_F : INSTR_DIV_F),
1079 exprs[0], exprs[1]);
1082 if (op->id == opid2('*','=')) {
1083 out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
1084 exprs[0], exprs[1]);
1086 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F,
1087 (ast_expression*)parser->fold->imm_float[1],
1090 compile_error(ctx, "internal error: failed to generate division");
1093 out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
1098 compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
1099 type_name[exprs[0]->vtype],
1100 type_name[exprs[1]->vtype]);
1104 case opid2('&','='):
1105 case opid2('|','='):
1106 if (NotSameType(TYPE_FLOAT)) {
1107 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1108 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1109 compile_error(ctx, "invalid types used in expression: %s and %s",
1113 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1114 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1116 if (ast_istype(exprs[0], ast_entfield))
1117 assignop = type_storep_instr[exprs[0]->vtype];
1119 assignop = type_store_instr[exprs[0]->vtype];
1120 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1121 (op->id == opid2('&','=') ? INSTR_BITAND : INSTR_BITOR),
1122 exprs[0], exprs[1]);
1124 case opid3('&','~','='):
1125 /* This is like: a &= ~(b);
1126 * But QC has no bitwise-not, so we implement it as
1129 if (NotSameType(TYPE_FLOAT)) {
1130 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1131 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1132 compile_error(ctx, "invalid types used in expression: %s and %s",
1136 if (ast_istype(exprs[0], ast_entfield))
1137 assignop = type_storep_instr[exprs[0]->vtype];
1139 assignop = type_store_instr[exprs[0]->vtype];
1140 out = (ast_expression*)ast_binary_new(ctx, INSTR_BITAND, exprs[0], exprs[1]);
1143 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1144 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1146 asbinstore = ast_binstore_new(ctx, assignop, INSTR_SUB_F, exprs[0], out);
1147 asbinstore->keep_dest = true;
1148 out = (ast_expression*)asbinstore;
1151 case opid2('~', 'P'):
1152 if (exprs[0]->vtype != TYPE_FLOAT) {
1153 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1154 compile_error(ast_ctx(exprs[0]), "invalid type for bit not: %s", ty1);
1157 if (!(out = fold_op(parser->fold, op, exprs)))
1158 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F, (ast_expression*)parser->fold->imm_float[2], exprs[0]);
1164 compile_error(ctx, "failed to apply operator %s", op->op);
1168 vec_push(sy->out, syexp(ctx, out));
1172 static bool parser_close_call(parser_t *parser, shunt *sy)
1174 /* was a function call */
1175 ast_expression *fun;
1176 ast_value *funval = NULL;
1180 size_t paramcount, i;
1182 fid = vec_last(sy->ops).off;
1183 vec_shrinkby(sy->ops, 1);
1185 /* out[fid] is the function
1186 * everything above is parameters...
1188 if (!vec_size(sy->argc)) {
1189 parseerror(parser, "internal error: no argument counter available");
1193 paramcount = vec_last(sy->argc);
1196 if (vec_size(sy->out) < fid) {
1197 parseerror(parser, "internal error: broken function call%lu < %lu+%lu\n",
1198 (unsigned long)vec_size(sy->out),
1200 (unsigned long)paramcount);
1204 fun = sy->out[fid].out;
1206 if (fun == intrinsic_debug_typestring) {
1208 if (fid+2 != vec_size(sy->out) ||
1209 vec_last(sy->out).block)
1211 parseerror(parser, "intrinsic __builtin_debug_typestring requires exactly 1 parameter");
1214 ast_type_to_string(vec_last(sy->out).out, ty, sizeof(ty));
1215 ast_unref(vec_last(sy->out).out);
1216 sy->out[fid] = syexp(ast_ctx(vec_last(sy->out).out),
1217 (ast_expression*)fold_constgen_string(parser->fold, ty, false));
1218 vec_shrinkby(sy->out, 1);
1222 call = ast_call_new(sy->ops[vec_size(sy->ops)].ctx, fun);
1226 if (fid+1 < vec_size(sy->out))
1229 if (fid+1 + paramcount != vec_size(sy->out)) {
1230 parseerror(parser, "internal error: parameter count mismatch: (%lu+1+%lu), %lu",
1231 (unsigned long)fid, (unsigned long)paramcount, (unsigned long)vec_size(sy->out));
1235 for (i = 0; i < paramcount; ++i)
1236 vec_push(call->params, sy->out[fid+1 + i].out);
1237 vec_shrinkby(sy->out, paramcount);
1238 (void)!ast_call_check_types(call, parser->function->vtype->expression.varparam);
1239 if (parser->max_param_count < paramcount)
1240 parser->max_param_count = paramcount;
1242 if (ast_istype(fun, ast_value)) {
1243 funval = (ast_value*)fun;
1244 if ((fun->flags & AST_FLAG_VARIADIC) &&
1245 !(/*funval->cvq == CV_CONST && */ funval->hasvalue && funval->constval.vfunc->builtin))
1247 call->va_count = (ast_expression*)fold_constgen_float(parser->fold, (qcfloat_t)paramcount);
1251 /* overwrite fid, the function, with a call */
1252 sy->out[fid] = syexp(call->expression.node.context, (ast_expression*)call);
1254 if (fun->vtype != TYPE_FUNCTION) {
1255 parseerror(parser, "not a function (%s)", type_name[fun->vtype]);
1260 parseerror(parser, "could not determine function return type");
1263 ast_value *fval = (ast_istype(fun, ast_value) ? ((ast_value*)fun) : NULL);
1265 if (fun->flags & AST_FLAG_DEPRECATED) {
1267 return !parsewarning(parser, WARN_DEPRECATED,
1268 "call to function (which is marked deprecated)\n",
1269 "-> it has been declared here: %s:%i",
1270 ast_ctx(fun).file, ast_ctx(fun).line);
1273 return !parsewarning(parser, WARN_DEPRECATED,
1274 "call to `%s` (which is marked deprecated)\n"
1275 "-> `%s` declared here: %s:%i",
1276 fval->name, fval->name, ast_ctx(fun).file, ast_ctx(fun).line);
1278 return !parsewarning(parser, WARN_DEPRECATED,
1279 "call to `%s` (deprecated: %s)\n"
1280 "-> `%s` declared here: %s:%i",
1281 fval->name, fval->desc, fval->name, ast_ctx(fun).file,
1285 if (vec_size(fun->params) != paramcount &&
1286 !((fun->flags & AST_FLAG_VARIADIC) &&
1287 vec_size(fun->params) < paramcount))
1289 const char *fewmany = (vec_size(fun->params) > paramcount) ? "few" : "many";
1291 return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT,
1292 "too %s parameters for call to %s: expected %i, got %i\n"
1293 " -> `%s` has been declared here: %s:%i",
1294 fewmany, fval->name, (int)vec_size(fun->params), (int)paramcount,
1295 fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
1297 return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT,
1298 "too %s parameters for function call: expected %i, got %i\n"
1299 " -> it has been declared here: %s:%i",
1300 fewmany, (int)vec_size(fun->params), (int)paramcount,
1301 ast_ctx(fun).file, (int)ast_ctx(fun).line);
1308 static bool parser_close_paren(parser_t *parser, shunt *sy)
1310 if (!vec_size(sy->ops)) {
1311 parseerror(parser, "unmatched closing paren");
1315 while (vec_size(sy->ops)) {
1316 if (vec_last(sy->ops).isparen) {
1317 if (vec_last(sy->paren) == PAREN_FUNC) {
1319 if (!parser_close_call(parser, sy))
1323 if (vec_last(sy->paren) == PAREN_EXPR) {
1325 if (!vec_size(sy->out)) {
1326 compile_error(vec_last(sy->ops).ctx, "empty paren expression");
1327 vec_shrinkby(sy->ops, 1);
1330 vec_shrinkby(sy->ops, 1);
1333 if (vec_last(sy->paren) == PAREN_INDEX) {
1335 /* pop off the parenthesis */
1336 vec_shrinkby(sy->ops, 1);
1337 /* then apply the index operator */
1338 if (!parser_sy_apply_operator(parser, sy))
1342 if (vec_last(sy->paren) == PAREN_TERNARY1) {
1343 vec_last(sy->paren) = PAREN_TERNARY2;
1344 /* pop off the parenthesis */
1345 vec_shrinkby(sy->ops, 1);
1348 compile_error(vec_last(sy->ops).ctx, "invalid parenthesis");
1351 if (!parser_sy_apply_operator(parser, sy))
1357 static void parser_reclassify_token(parser_t *parser)
1360 if (parser->tok >= TOKEN_START)
1362 for (i = 0; i < operator_count; ++i) {
1363 if (!strcmp(parser_tokval(parser), operators[i].op)) {
1364 parser->tok = TOKEN_OPERATOR;
1370 static ast_expression* parse_vararg_do(parser_t *parser)
1372 ast_expression *idx, *out;
1374 ast_value *funtype = parser->function->vtype;
1375 lex_ctx_t ctx = parser_ctx(parser);
1377 if (!parser->function->varargs) {
1378 parseerror(parser, "function has no variable argument list");
1382 if (!parser_next(parser) || parser->tok != '(') {
1383 parseerror(parser, "expected parameter index and type in parenthesis");
1386 if (!parser_next(parser)) {
1387 parseerror(parser, "error parsing parameter index");
1391 idx = parse_expression_leave(parser, true, false, false);
1395 if (parser->tok != ',') {
1396 if (parser->tok != ')') {
1398 parseerror(parser, "expected comma after parameter index");
1401 /* vararg piping: ...(start) */
1402 out = (ast_expression*)ast_argpipe_new(ctx, idx);
1406 if (!parser_next(parser) || (parser->tok != TOKEN_IDENT && parser->tok != TOKEN_TYPENAME)) {
1408 parseerror(parser, "expected typename for vararg");
1412 typevar = parse_typename(parser, NULL, NULL);
1418 if (parser->tok != ')') {
1420 ast_delete(typevar);
1421 parseerror(parser, "expected closing paren");
1425 if (funtype->expression.varparam &&
1426 !ast_compare_type((ast_expression*)typevar, (ast_expression*)funtype->expression.varparam))
1430 ast_type_to_string((ast_expression*)typevar, ty1, sizeof(ty1));
1431 ast_type_to_string((ast_expression*)funtype->expression.varparam, ty2, sizeof(ty2));
1432 compile_error(ast_ctx(typevar),
1433 "function was declared to take varargs of type `%s`, requested type is: %s",
1437 out = (ast_expression*)ast_array_index_new(ctx, (ast_expression*)(parser->function->varargs), idx);
1438 ast_type_adopt(out, typevar);
1439 ast_delete(typevar);
1443 static ast_expression* parse_vararg(parser_t *parser)
1445 bool old_noops = parser->lex->flags.noops;
1447 ast_expression *out;
1449 parser->lex->flags.noops = true;
1450 out = parse_vararg_do(parser);
1452 parser->lex->flags.noops = old_noops;
1456 /* not to be exposed */
1457 extern bool ftepp_predef_exists(const char *name);
1459 static bool parse_sya_operand(parser_t *parser, shunt *sy, bool with_labels)
1461 if (OPTS_FLAG(TRANSLATABLE_STRINGS) &&
1462 parser->tok == TOKEN_IDENT &&
1463 !strcmp(parser_tokval(parser), "_"))
1465 /* a translatable string */
1468 parser->lex->flags.noops = true;
1469 if (!parser_next(parser) || parser->tok != '(') {
1470 parseerror(parser, "use _(\"string\") to create a translatable string constant");
1473 parser->lex->flags.noops = false;
1474 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
1475 parseerror(parser, "expected a constant string in translatable-string extension");
1478 val = (ast_value*)fold_constgen_string(parser->fold, parser_tokval(parser), true);
1481 vec_push(sy->out, syexp(parser_ctx(parser), (ast_expression*)val));
1483 if (!parser_next(parser) || parser->tok != ')') {
1484 parseerror(parser, "expected closing paren after translatable string");
1489 else if (parser->tok == TOKEN_DOTS)
1492 if (!OPTS_FLAG(VARIADIC_ARGS)) {
1493 parseerror(parser, "cannot access varargs (try -fvariadic-args)");
1496 va = parse_vararg(parser);
1499 vec_push(sy->out, syexp(parser_ctx(parser), va));
1502 else if (parser->tok == TOKEN_FLOATCONST) {
1503 ast_expression *val = fold_constgen_float(parser->fold, (parser_token(parser)->constval.f));
1506 vec_push(sy->out, syexp(parser_ctx(parser), val));
1509 else if (parser->tok == TOKEN_INTCONST || parser->tok == TOKEN_CHARCONST) {
1510 ast_expression *val = fold_constgen_float(parser->fold, (qcfloat_t)(parser_token(parser)->constval.i));
1513 vec_push(sy->out, syexp(parser_ctx(parser), val));
1516 else if (parser->tok == TOKEN_STRINGCONST) {
1517 ast_expression *val = fold_constgen_string(parser->fold, parser_tokval(parser), false);
1520 vec_push(sy->out, syexp(parser_ctx(parser), val));
1523 else if (parser->tok == TOKEN_VECTORCONST) {
1524 ast_expression *val = fold_constgen_vector(parser->fold, parser_token(parser)->constval.v);
1527 vec_push(sy->out, syexp(parser_ctx(parser), val));
1530 else if (parser->tok == TOKEN_IDENT)
1532 const char *ctoken = parser_tokval(parser);
1533 ast_expression *prev = vec_size(sy->out) ? vec_last(sy->out).out : NULL;
1534 ast_expression *var;
1535 /* a_vector.{x,y,z} */
1536 if (!vec_size(sy->ops) ||
1537 !vec_last(sy->ops).etype ||
1538 operators[vec_last(sy->ops).etype-1].id != opid1('.') ||
1539 (prev >= intrinsic_debug_typestring &&
1540 prev <= intrinsic_debug_typestring))
1542 /* When adding more intrinsics, fix the above condition */
1545 if (prev && prev->vtype == TYPE_VECTOR && ctoken[0] >= 'x' && ctoken[0] <= 'z' && !ctoken[1])
1547 var = (ast_expression*)parser->const_vec[ctoken[0]-'x'];
1549 var = parser_find_var(parser, parser_tokval(parser));
1551 var = parser_find_field(parser, parser_tokval(parser));
1553 if (!var && with_labels) {
1554 var = (ast_expression*)parser_find_label(parser, parser_tokval(parser));
1556 ast_label *lbl = ast_label_new(parser_ctx(parser), parser_tokval(parser), true);
1557 var = (ast_expression*)lbl;
1558 vec_push(parser->labels, lbl);
1561 if (!var && !strcmp(parser_tokval(parser), "__FUNC__"))
1562 var = (ast_expression*)fold_constgen_string(parser->fold, parser->function->name, false);
1565 if (!strcmp(parser_tokval(parser), "__builtin_debug_typestring")) {
1566 var = (ast_expression*)intrinsic_debug_typestring;
1568 /* now we try for the real intrinsic hashtable. If the string
1569 * begins with __builtin, we simply skip past it, otherwise we
1570 * use the identifier as is.
1572 else if (!strncmp(parser_tokval(parser), "__builtin_", 10)) {
1573 var = intrin_func(parser, parser_tokval(parser) + 10 /* skip __builtin */);
1577 char *correct = NULL;
1581 * sometimes people use preprocessing predefs without enabling them
1582 * i've done this thousands of times already myself. Lets check for
1583 * it in the predef table. And diagnose it better :)
1585 if (!OPTS_FLAG(FTEPP_PREDEFS) && ftepp_predef_exists(parser_tokval(parser))) {
1586 parseerror(parser, "unexpected identifier: %s (use -fftepp-predef to enable pre-defined macros)", parser_tokval(parser));
1591 * TODO: determine the best score for the identifier: be it
1592 * a variable, a field.
1594 * We should also consider adding correction tables for
1595 * other things as well.
1597 if (OPTS_OPTION_BOOL(OPTION_CORRECTION) && strlen(parser_tokval(parser)) <= 16) {
1599 correct_init(&corr);
1601 for (i = 0; i < vec_size(parser->correct_variables); i++) {
1602 correct = correct_str(&corr, parser->correct_variables[i], parser_tokval(parser));
1603 if (strcmp(correct, parser_tokval(parser))) {
1610 correct_free(&corr);
1613 parseerror(parser, "unexpected identifier: %s (did you mean %s?)", parser_tokval(parser), correct);
1618 parseerror(parser, "unexpected identifier: %s", parser_tokval(parser));
1624 if (ast_istype(var, ast_value)) {
1625 ((ast_value*)var)->uses++;
1627 else if (ast_istype(var, ast_member)) {
1628 ast_member *mem = (ast_member*)var;
1629 if (ast_istype(mem->owner, ast_value))
1630 ((ast_value*)(mem->owner))->uses++;
1633 vec_push(sy->out, syexp(parser_ctx(parser), var));
1636 parseerror(parser, "unexpected token `%s`", parser_tokval(parser));
1640 static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels)
1642 ast_expression *expr = NULL;
1645 bool wantop = false;
1646 /* only warn once about an assignment in a truth value because the current code
1647 * would trigger twice on: if(a = b && ...), once for the if-truth-value, once for the && part
1649 bool warn_truthvalue = true;
1651 /* count the parens because an if starts with one, so the
1652 * end of a condition is an unmatched closing paren
1656 memset(&sy, 0, sizeof(sy));
1658 parser->lex->flags.noops = false;
1660 parser_reclassify_token(parser);
1664 if (parser->tok == TOKEN_TYPENAME) {
1665 parseerror(parser, "unexpected typename `%s`", parser_tokval(parser));
1669 if (parser->tok == TOKEN_OPERATOR)
1671 /* classify the operator */
1672 const oper_info *op;
1673 const oper_info *olast = NULL;
1675 for (o = 0; o < operator_count; ++o) {
1676 if (((!(operators[o].flags & OP_PREFIX) == !!wantop)) &&
1677 /* !(operators[o].flags & OP_SUFFIX) && / * remove this */
1678 !strcmp(parser_tokval(parser), operators[o].op))
1683 if (o == operator_count) {
1684 compile_error(parser_ctx(parser), "unknown operator: %s", parser_tokval(parser));
1687 /* found an operator */
1690 /* when declaring variables, a comma starts a new variable */
1691 if (op->id == opid1(',') && !vec_size(sy.paren) && stopatcomma) {
1692 /* fixup the token */
1697 /* a colon without a pervious question mark cannot be a ternary */
1698 if (!ternaries && op->id == opid2(':','?')) {
1703 if (op->id == opid1(',')) {
1704 if (vec_size(sy.paren) && vec_last(sy.paren) == PAREN_TERNARY2) {
1705 (void)!parsewarning(parser, WARN_TERNARY_PRECEDENCE, "suggesting parenthesis around ternary expression");
1709 if (vec_size(sy.ops) && !vec_last(sy.ops).isparen)
1710 olast = &operators[vec_last(sy.ops).etype-1];
1712 #define IsAssignOp(x) (\
1713 (x) == opid1('=') || \
1714 (x) == opid2('+','=') || \
1715 (x) == opid2('-','=') || \
1716 (x) == opid2('*','=') || \
1717 (x) == opid2('/','=') || \
1718 (x) == opid2('%','=') || \
1719 (x) == opid2('&','=') || \
1720 (x) == opid2('|','=') || \
1721 (x) == opid3('&','~','=') \
1723 if (warn_truthvalue) {
1724 if ( (olast && IsAssignOp(olast->id) && (op->id == opid2('&','&') || op->id == opid2('|','|'))) ||
1725 (olast && IsAssignOp(op->id) && (olast->id == opid2('&','&') || olast->id == opid2('|','|'))) ||
1726 (truthvalue && !vec_size(sy.paren) && IsAssignOp(op->id))
1729 (void)!parsewarning(parser, WARN_PARENTHESIS, "suggesting parenthesis around assignment used as truth value");
1730 warn_truthvalue = false;
1735 (op->prec < olast->prec) ||
1736 (op->assoc == ASSOC_LEFT && op->prec <= olast->prec) ) )
1738 if (!parser_sy_apply_operator(parser, &sy))
1740 if (vec_size(sy.ops) && !vec_last(sy.ops).isparen)
1741 olast = &operators[vec_last(sy.ops).etype-1];
1746 if (op->id == opid1('(')) {
1748 size_t sycount = vec_size(sy.out);
1749 /* we expected an operator, this is the function-call operator */
1750 vec_push(sy.paren, PAREN_FUNC);
1751 vec_push(sy.ops, syparen(parser_ctx(parser), sycount-1));
1752 vec_push(sy.argc, 0);
1754 vec_push(sy.paren, PAREN_EXPR);
1755 vec_push(sy.ops, syparen(parser_ctx(parser), 0));
1758 } else if (op->id == opid1('[')) {
1760 parseerror(parser, "unexpected array subscript");
1763 vec_push(sy.paren, PAREN_INDEX);
1764 /* push both the operator and the paren, this makes life easier */
1765 vec_push(sy.ops, syop(parser_ctx(parser), op));
1766 vec_push(sy.ops, syparen(parser_ctx(parser), 0));
1768 } else if (op->id == opid2('?',':')) {
1769 vec_push(sy.ops, syop(parser_ctx(parser), op));
1770 vec_push(sy.ops, syparen(parser_ctx(parser), 0));
1773 vec_push(sy.paren, PAREN_TERNARY1);
1774 } else if (op->id == opid2(':','?')) {
1775 if (!vec_size(sy.paren)) {
1776 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
1779 if (vec_last(sy.paren) != PAREN_TERNARY1) {
1780 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
1783 if (!parser_close_paren(parser, &sy))
1785 vec_push(sy.ops, syop(parser_ctx(parser), op));
1789 vec_push(sy.ops, syop(parser_ctx(parser), op));
1790 wantop = !!(op->flags & OP_SUFFIX);
1793 else if (parser->tok == ')') {
1794 while (vec_size(sy.paren) && vec_last(sy.paren) == PAREN_TERNARY2) {
1795 if (!parser_sy_apply_operator(parser, &sy))
1798 if (!vec_size(sy.paren))
1801 if (vec_last(sy.paren) == PAREN_TERNARY1) {
1802 parseerror(parser, "mismatched parentheses (closing paren in ternary expression?)");
1805 if (!parser_close_paren(parser, &sy))
1808 /* must be a function call without parameters */
1809 if (vec_last(sy.paren) != PAREN_FUNC) {
1810 parseerror(parser, "closing paren in invalid position");
1813 if (!parser_close_paren(parser, &sy))
1818 else if (parser->tok == '(') {
1819 parseerror(parser, "internal error: '(' should be classified as operator");
1822 else if (parser->tok == '[') {
1823 parseerror(parser, "internal error: '[' should be classified as operator");
1826 else if (parser->tok == ']') {
1827 while (vec_size(sy.paren) && vec_last(sy.paren) == PAREN_TERNARY2) {
1828 if (!parser_sy_apply_operator(parser, &sy))
1831 if (!vec_size(sy.paren))
1833 if (vec_last(sy.paren) != PAREN_INDEX) {
1834 parseerror(parser, "mismatched parentheses, unexpected ']'");
1837 if (!parser_close_paren(parser, &sy))
1842 if (!parse_sya_operand(parser, &sy, with_labels))
1845 if (vec_size(sy.paren) && vec_last(sy.ops).isparen && vec_last(sy.paren) == PAREN_FUNC)
1846 vec_last(sy.argc)++;
1851 /* in this case we might want to allow constant string concatenation */
1852 bool concatenated = false;
1853 if (parser->tok == TOKEN_STRINGCONST && vec_size(sy.out)) {
1854 ast_expression *lexpr = vec_last(sy.out).out;
1855 if (ast_istype(lexpr, ast_value)) {
1856 ast_value *last = (ast_value*)lexpr;
1857 if (last->isimm == true && last->cvq == CV_CONST &&
1858 last->hasvalue && last->expression.vtype == TYPE_STRING)
1860 char *newstr = NULL;
1861 util_asprintf(&newstr, "%s%s", last->constval.vstring, parser_tokval(parser));
1862 vec_last(sy.out).out = (ast_expression*)fold_constgen_string(parser->fold, newstr, false);
1864 concatenated = true;
1868 if (!concatenated) {
1869 parseerror(parser, "expected operator or end of statement");
1874 if (!parser_next(parser)) {
1877 if (parser->tok == ';' ||
1878 ((!vec_size(sy.paren) || (vec_size(sy.paren) == 1 && vec_last(sy.paren) == PAREN_TERNARY2)) &&
1879 (parser->tok == ']' || parser->tok == ')' || parser->tok == '}')))
1885 while (vec_size(sy.ops)) {
1886 if (!parser_sy_apply_operator(parser, &sy))
1890 parser->lex->flags.noops = true;
1891 if (vec_size(sy.out) != 1) {
1892 parseerror(parser, "expression with not 1 but %lu output values...", (unsigned long) vec_size(sy.out));
1895 expr = sy.out[0].out;
1898 if (vec_size(sy.paren)) {
1899 parseerror(parser, "internal error: vec_size(sy.paren) = %lu", (unsigned long)vec_size(sy.paren));
1907 parser->lex->flags.noops = true;
1908 for (i = 0; i < vec_size(sy.out); ++i) {
1910 ast_unref(sy.out[i].out);
1919 static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels)
1921 ast_expression *e = parse_expression_leave(parser, stopatcomma, false, with_labels);
1924 if (parser->tok != ';') {
1925 parseerror(parser, "semicolon expected after expression");
1929 if (!parser_next(parser)) {
1936 static void parser_enterblock(parser_t *parser)
1938 vec_push(parser->variables, util_htnew(PARSER_HT_SIZE));
1939 vec_push(parser->_blocklocals, vec_size(parser->_locals));
1940 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
1941 vec_push(parser->_blocktypedefs, vec_size(parser->_typedefs));
1942 vec_push(parser->_block_ctx, parser_ctx(parser));
1945 vec_push(parser->correct_variables, correct_trie_new());
1946 vec_push(parser->correct_variables_score, NULL);
1949 static bool parser_leaveblock(parser_t *parser)
1952 size_t locals, typedefs;
1954 if (vec_size(parser->variables) <= PARSER_HT_LOCALS) {
1955 parseerror(parser, "internal error: parser_leaveblock with no block");
1959 util_htdel(vec_last(parser->variables));
1960 correct_del(vec_last(parser->correct_variables), vec_last(parser->correct_variables_score));
1962 vec_pop(parser->variables);
1963 vec_pop(parser->correct_variables);
1964 vec_pop(parser->correct_variables_score);
1965 if (!vec_size(parser->_blocklocals)) {
1966 parseerror(parser, "internal error: parser_leaveblock with no block (2)");
1970 locals = vec_last(parser->_blocklocals);
1971 vec_pop(parser->_blocklocals);
1972 while (vec_size(parser->_locals) != locals) {
1973 ast_expression *e = vec_last(parser->_locals);
1974 ast_value *v = (ast_value*)e;
1975 vec_pop(parser->_locals);
1976 if (ast_istype(e, ast_value) && !v->uses) {
1977 if (compile_warning(ast_ctx(v), WARN_UNUSED_VARIABLE, "unused variable: `%s`", v->name))
1982 typedefs = vec_last(parser->_blocktypedefs);
1983 while (vec_size(parser->_typedefs) != typedefs) {
1984 ast_delete(vec_last(parser->_typedefs));
1985 vec_pop(parser->_typedefs);
1987 util_htdel(vec_last(parser->typedefs));
1988 vec_pop(parser->typedefs);
1990 vec_pop(parser->_block_ctx);
1995 static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e)
1997 vec_push(parser->_locals, e);
1998 util_htset(vec_last(parser->variables), name, (void*)e);
2002 vec_last(parser->correct_variables),
2003 &vec_last(parser->correct_variables_score),
2008 static void parser_addglobal(parser_t *parser, const char *name, ast_expression *e)
2010 vec_push(parser->globals, e);
2011 util_htset(parser->htglobals, name, e);
2015 parser->correct_variables[0],
2016 &parser->correct_variables_score[0],
2021 static ast_expression* process_condition(parser_t *parser, ast_expression *cond, bool *_ifnot)
2025 ast_expression *prev;
2027 if (cond->vtype == TYPE_VOID || cond->vtype >= TYPE_VARIANT) {
2029 ast_type_to_string(cond, ty, sizeof(ty));
2030 compile_error(ast_ctx(cond), "invalid type for if() condition: %s", ty);
2033 if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && cond->vtype == TYPE_STRING)
2036 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_S, cond);
2039 parseerror(parser, "internal error: failed to process condition");
2044 else if (OPTS_FLAG(CORRECT_LOGIC) && cond->vtype == TYPE_VECTOR)
2046 /* vector types need to be cast to true booleans */
2047 ast_binary *bin = (ast_binary*)cond;
2048 if (!OPTS_FLAG(PERL_LOGIC) || !ast_istype(cond, ast_binary) || !(bin->op == INSTR_AND || bin->op == INSTR_OR))
2050 /* in perl-logic, AND and OR take care of the -fcorrect-logic */
2052 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_V, cond);
2055 parseerror(parser, "internal error: failed to process condition");
2062 unary = (ast_unary*)cond;
2063 /* ast_istype dereferences cond, should test here for safety */
2064 while (cond && ast_istype(cond, ast_unary) && unary->op == INSTR_NOT_F)
2066 cond = unary->operand;
2067 unary->operand = NULL;
2070 unary = (ast_unary*)cond;
2074 parseerror(parser, "internal error: failed to process condition");
2076 if (ifnot) *_ifnot = !*_ifnot;
2080 static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out)
2083 ast_expression *cond, *ontrue = NULL, *onfalse = NULL;
2086 lex_ctx_t ctx = parser_ctx(parser);
2088 (void)block; /* not touching */
2090 /* skip the 'if', parse an optional 'not' and check for an opening paren */
2091 if (!parser_next(parser)) {
2092 parseerror(parser, "expected condition or 'not'");
2095 if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "not")) {
2097 if (!parser_next(parser)) {
2098 parseerror(parser, "expected condition in parenthesis");
2102 if (parser->tok != '(') {
2103 parseerror(parser, "expected 'if' condition in parenthesis");
2106 /* parse into the expression */
2107 if (!parser_next(parser)) {
2108 parseerror(parser, "expected 'if' condition after opening paren");
2111 /* parse the condition */
2112 cond = parse_expression_leave(parser, false, true, false);
2116 if (parser->tok != ')') {
2117 parseerror(parser, "expected closing paren after 'if' condition");
2121 /* parse into the 'then' branch */
2122 if (!parser_next(parser)) {
2123 parseerror(parser, "expected statement for on-true branch of 'if'");
2127 if (!parse_statement_or_block(parser, &ontrue)) {
2132 ontrue = (ast_expression*)ast_block_new(parser_ctx(parser));
2133 /* check for an else */
2134 if (!strcmp(parser_tokval(parser), "else")) {
2135 /* parse into the 'else' branch */
2136 if (!parser_next(parser)) {
2137 parseerror(parser, "expected on-false branch after 'else'");
2142 if (!parse_statement_or_block(parser, &onfalse)) {
2149 cond = process_condition(parser, cond, &ifnot);
2151 if (ontrue) ast_delete(ontrue);
2152 if (onfalse) ast_delete(onfalse);
2157 ifthen = ast_ifthen_new(ctx, cond, onfalse, ontrue);
2159 ifthen = ast_ifthen_new(ctx, cond, ontrue, onfalse);
2160 *out = (ast_expression*)ifthen;
2164 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out);
2165 static bool parse_while(parser_t *parser, ast_block *block, ast_expression **out)
2170 /* skip the 'while' and get the body */
2171 if (!parser_next(parser)) {
2172 if (OPTS_FLAG(LOOP_LABELS))
2173 parseerror(parser, "expected loop label or 'while' condition in parenthesis");
2175 parseerror(parser, "expected 'while' condition in parenthesis");
2179 if (parser->tok == ':') {
2180 if (!OPTS_FLAG(LOOP_LABELS))
2181 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2182 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2183 parseerror(parser, "expected loop label");
2186 label = util_strdup(parser_tokval(parser));
2187 if (!parser_next(parser)) {
2189 parseerror(parser, "expected 'while' condition in parenthesis");
2194 if (parser->tok != '(') {
2195 parseerror(parser, "expected 'while' condition in parenthesis");
2199 vec_push(parser->breaks, label);
2200 vec_push(parser->continues, label);
2202 rv = parse_while_go(parser, block, out);
2205 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2206 parseerror(parser, "internal error: label stack corrupted");
2212 vec_pop(parser->breaks);
2213 vec_pop(parser->continues);
2218 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out)
2221 ast_expression *cond, *ontrue;
2225 lex_ctx_t ctx = parser_ctx(parser);
2227 (void)block; /* not touching */
2229 /* parse into the expression */
2230 if (!parser_next(parser)) {
2231 parseerror(parser, "expected 'while' condition after opening paren");
2234 /* parse the condition */
2235 cond = parse_expression_leave(parser, false, true, false);
2239 if (parser->tok != ')') {
2240 parseerror(parser, "expected closing paren after 'while' condition");
2244 /* parse into the 'then' branch */
2245 if (!parser_next(parser)) {
2246 parseerror(parser, "expected while-loop body");
2250 if (!parse_statement_or_block(parser, &ontrue)) {
2255 cond = process_condition(parser, cond, &ifnot);
2260 aloop = ast_loop_new(ctx, NULL, cond, ifnot, NULL, false, NULL, ontrue);
2261 *out = (ast_expression*)aloop;
2265 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out);
2266 static bool parse_dowhile(parser_t *parser, ast_block *block, ast_expression **out)
2271 /* skip the 'do' and get the body */
2272 if (!parser_next(parser)) {
2273 if (OPTS_FLAG(LOOP_LABELS))
2274 parseerror(parser, "expected loop label or body");
2276 parseerror(parser, "expected loop body");
2280 if (parser->tok == ':') {
2281 if (!OPTS_FLAG(LOOP_LABELS))
2282 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2283 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2284 parseerror(parser, "expected loop label");
2287 label = util_strdup(parser_tokval(parser));
2288 if (!parser_next(parser)) {
2290 parseerror(parser, "expected loop body");
2295 vec_push(parser->breaks, label);
2296 vec_push(parser->continues, label);
2298 rv = parse_dowhile_go(parser, block, out);
2301 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2302 parseerror(parser, "internal error: label stack corrupted");
2305 * Test for NULL otherwise ast_delete dereferences null pointer
2313 vec_pop(parser->breaks);
2314 vec_pop(parser->continues);
2319 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out)
2322 ast_expression *cond, *ontrue;
2326 lex_ctx_t ctx = parser_ctx(parser);
2328 (void)block; /* not touching */
2330 if (!parse_statement_or_block(parser, &ontrue))
2333 /* expect the "while" */
2334 if (parser->tok != TOKEN_KEYWORD ||
2335 strcmp(parser_tokval(parser), "while"))
2337 parseerror(parser, "expected 'while' and condition");
2342 /* skip the 'while' and check for opening paren */
2343 if (!parser_next(parser) || parser->tok != '(') {
2344 parseerror(parser, "expected 'while' condition in parenthesis");
2348 /* parse into the expression */
2349 if (!parser_next(parser)) {
2350 parseerror(parser, "expected 'while' condition after opening paren");
2354 /* parse the condition */
2355 cond = parse_expression_leave(parser, false, true, false);
2359 if (parser->tok != ')') {
2360 parseerror(parser, "expected closing paren after 'while' condition");
2366 if (!parser_next(parser) || parser->tok != ';') {
2367 parseerror(parser, "expected semicolon after condition");
2373 if (!parser_next(parser)) {
2374 parseerror(parser, "parse error");
2380 cond = process_condition(parser, cond, &ifnot);
2385 aloop = ast_loop_new(ctx, NULL, NULL, false, cond, ifnot, NULL, ontrue);
2386 *out = (ast_expression*)aloop;
2390 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out);
2391 static bool parse_for(parser_t *parser, ast_block *block, ast_expression **out)
2396 /* skip the 'for' and check for opening paren */
2397 if (!parser_next(parser)) {
2398 if (OPTS_FLAG(LOOP_LABELS))
2399 parseerror(parser, "expected loop label or 'for' expressions in parenthesis");
2401 parseerror(parser, "expected 'for' expressions in parenthesis");
2405 if (parser->tok == ':') {
2406 if (!OPTS_FLAG(LOOP_LABELS))
2407 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2408 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2409 parseerror(parser, "expected loop label");
2412 label = util_strdup(parser_tokval(parser));
2413 if (!parser_next(parser)) {
2415 parseerror(parser, "expected 'for' expressions in parenthesis");
2420 if (parser->tok != '(') {
2421 parseerror(parser, "expected 'for' expressions in parenthesis");
2425 vec_push(parser->breaks, label);
2426 vec_push(parser->continues, label);
2428 rv = parse_for_go(parser, block, out);
2431 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2432 parseerror(parser, "internal error: label stack corrupted");
2438 vec_pop(parser->breaks);
2439 vec_pop(parser->continues);
2443 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out)
2446 ast_expression *initexpr, *cond, *increment, *ontrue;
2451 lex_ctx_t ctx = parser_ctx(parser);
2453 parser_enterblock(parser);
2460 /* parse into the expression */
2461 if (!parser_next(parser)) {
2462 parseerror(parser, "expected 'for' initializer after opening paren");
2467 if (parser->tok == TOKEN_IDENT)
2468 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
2470 if (typevar || parser->tok == TOKEN_TYPENAME) {
2472 if (OPTS_OPTION_U32(OPTION_STANDARD) != COMPILER_GMQCC) {
2473 if (parsewarning(parser, WARN_EXTENSIONS,
2474 "current standard does not allow variable declarations in for-loop initializers"))
2478 if (!parse_variable(parser, block, true, CV_VAR, typevar, false, false, 0, NULL))
2481 else if (parser->tok != ';')
2483 initexpr = parse_expression_leave(parser, false, false, false);
2488 /* move on to condition */
2489 if (parser->tok != ';') {
2490 parseerror(parser, "expected semicolon after for-loop initializer");
2493 if (!parser_next(parser)) {
2494 parseerror(parser, "expected for-loop condition");
2498 /* parse the condition */
2499 if (parser->tok != ';') {
2500 cond = parse_expression_leave(parser, false, true, false);
2505 /* move on to incrementor */
2506 if (parser->tok != ';') {
2507 parseerror(parser, "expected semicolon after for-loop initializer");
2510 if (!parser_next(parser)) {
2511 parseerror(parser, "expected for-loop condition");
2515 /* parse the incrementor */
2516 if (parser->tok != ')') {
2517 lex_ctx_t condctx = parser_ctx(parser);
2518 increment = parse_expression_leave(parser, false, false, false);
2521 if (!ast_side_effects(increment)) {
2522 if (compile_warning(condctx, WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
2528 if (parser->tok != ')') {
2529 parseerror(parser, "expected closing paren after 'for-loop' incrementor");
2532 /* parse into the 'then' branch */
2533 if (!parser_next(parser)) {
2534 parseerror(parser, "expected for-loop body");
2537 if (!parse_statement_or_block(parser, &ontrue))
2541 cond = process_condition(parser, cond, &ifnot);
2545 aloop = ast_loop_new(ctx, initexpr, cond, ifnot, NULL, false, increment, ontrue);
2546 *out = (ast_expression*)aloop;
2548 if (!parser_leaveblock(parser)) {
2554 if (initexpr) ast_unref(initexpr);
2555 if (cond) ast_unref(cond);
2556 if (increment) ast_unref(increment);
2557 (void)!parser_leaveblock(parser);
2561 static bool parse_return(parser_t *parser, ast_block *block, ast_expression **out)
2563 ast_expression *exp = NULL;
2564 ast_expression *var = NULL;
2565 ast_return *ret = NULL;
2566 ast_value *retval = parser->function->return_value;
2567 ast_value *expected = parser->function->vtype;
2569 lex_ctx_t ctx = parser_ctx(parser);
2571 (void)block; /* not touching */
2573 if (!parser_next(parser)) {
2574 parseerror(parser, "expected return expression");
2578 /* return assignments */
2579 if (parser->tok == '=') {
2580 if (!OPTS_FLAG(RETURN_ASSIGNMENTS)) {
2581 parseerror(parser, "return assignments not activated, try using -freturn-assigments");
2585 if (type_store_instr[expected->expression.next->vtype] == VINSTR_END) {
2587 ast_type_to_string(expected->expression.next, ty1, sizeof(ty1));
2588 parseerror(parser, "invalid return type: `%s'", ty1);
2592 if (!parser_next(parser)) {
2593 parseerror(parser, "expected return assignment expression");
2597 if (!(exp = parse_expression_leave(parser, false, false, false)))
2600 /* prepare the return value */
2602 retval = ast_value_new(ctx, "#LOCAL_RETURN", TYPE_VOID);
2603 ast_type_adopt(retval, expected->expression.next);
2604 parser->function->return_value = retval;
2607 if (!ast_compare_type(exp, (ast_expression*)retval)) {
2608 char ty1[1024], ty2[1024];
2609 ast_type_to_string(exp, ty1, sizeof(ty1));
2610 ast_type_to_string(&retval->expression, ty2, sizeof(ty2));
2611 parseerror(parser, "invalid type for return value: `%s', expected `%s'", ty1, ty2);
2614 /* store to 'return' local variable */
2615 var = (ast_expression*)ast_store_new(
2617 type_store_instr[expected->expression.next->vtype],
2618 (ast_expression*)retval, exp);
2625 if (parser->tok != ';')
2626 parseerror(parser, "missing semicolon after return assignment");
2627 else if (!parser_next(parser))
2628 parseerror(parser, "parse error after return assignment");
2634 if (parser->tok != ';') {
2635 exp = parse_expression(parser, false, false);
2639 if (exp->vtype != TYPE_NIL &&
2640 exp->vtype != ((ast_expression*)expected)->next->vtype)
2642 parseerror(parser, "return with invalid expression");
2645 ret = ast_return_new(ctx, exp);
2651 if (!parser_next(parser))
2652 parseerror(parser, "parse error");
2654 if (!retval && expected->expression.next->vtype != TYPE_VOID)
2656 (void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value");
2658 ret = ast_return_new(ctx, (ast_expression*)retval);
2660 *out = (ast_expression*)ret;
2664 static bool parse_break_continue(parser_t *parser, ast_block *block, ast_expression **out, bool is_continue)
2667 unsigned int levels = 0;
2668 lex_ctx_t ctx = parser_ctx(parser);
2669 const char **loops = (is_continue ? parser->continues : parser->breaks);
2671 (void)block; /* not touching */
2672 if (!parser_next(parser)) {
2673 parseerror(parser, "expected semicolon or loop label");
2677 if (!vec_size(loops)) {
2679 parseerror(parser, "`continue` can only be used inside loops");
2681 parseerror(parser, "`break` can only be used inside loops or switches");
2684 if (parser->tok == TOKEN_IDENT) {
2685 if (!OPTS_FLAG(LOOP_LABELS))
2686 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2687 i = vec_size(loops);
2689 if (loops[i] && !strcmp(loops[i], parser_tokval(parser)))
2692 parseerror(parser, "no such loop to %s: `%s`",
2693 (is_continue ? "continue" : "break out of"),
2694 parser_tokval(parser));
2699 if (!parser_next(parser)) {
2700 parseerror(parser, "expected semicolon");
2705 if (parser->tok != ';') {
2706 parseerror(parser, "expected semicolon");
2710 if (!parser_next(parser))
2711 parseerror(parser, "parse error");
2713 *out = (ast_expression*)ast_breakcont_new(ctx, is_continue, levels);
2717 /* returns true when it was a variable qualifier, false otherwise!
2718 * on error, cvq is set to CV_WRONG
2720 static bool parse_qualifiers(parser_t *parser, bool with_local, int *cvq, bool *noref, bool *is_static, uint32_t *_flags, char **message)
2722 bool had_const = false;
2723 bool had_var = false;
2724 bool had_noref = false;
2725 bool had_attrib = false;
2726 bool had_static = false;
2731 if (parser->tok == TOKEN_ATTRIBUTE_OPEN) {
2733 /* parse an attribute */
2734 if (!parser_next(parser)) {
2735 parseerror(parser, "expected attribute after `[[`");
2739 if (!strcmp(parser_tokval(parser), "noreturn")) {
2740 flags |= AST_FLAG_NORETURN;
2741 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2742 parseerror(parser, "`noreturn` attribute has no parameters, expected `]]`");
2747 else if (!strcmp(parser_tokval(parser), "noref")) {
2749 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2750 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2755 else if (!strcmp(parser_tokval(parser), "inline")) {
2756 flags |= AST_FLAG_INLINE;
2757 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2758 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2763 else if (!strcmp(parser_tokval(parser), "alias") && !(flags & AST_FLAG_ALIAS)) {
2764 flags |= AST_FLAG_ALIAS;
2767 if (!parser_next(parser)) {
2768 parseerror(parser, "parse error in attribute");
2772 if (parser->tok == '(') {
2773 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
2774 parseerror(parser, "`alias` attribute missing parameter");
2778 *message = util_strdup(parser_tokval(parser));
2780 if (!parser_next(parser)) {
2781 parseerror(parser, "parse error in attribute");
2785 if (parser->tok != ')') {
2786 parseerror(parser, "`alias` attribute expected `)` after parameter");
2790 if (!parser_next(parser)) {
2791 parseerror(parser, "parse error in attribute");
2796 if (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2797 parseerror(parser, "`alias` attribute expected `]]`");
2801 else if (!strcmp(parser_tokval(parser), "deprecated") && !(flags & AST_FLAG_DEPRECATED)) {
2802 flags |= AST_FLAG_DEPRECATED;
2805 if (!parser_next(parser)) {
2806 parseerror(parser, "parse error in attribute");
2810 if (parser->tok == '(') {
2811 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
2812 parseerror(parser, "`deprecated` attribute missing parameter");
2816 *message = util_strdup(parser_tokval(parser));
2818 if (!parser_next(parser)) {
2819 parseerror(parser, "parse error in attribute");
2823 if(parser->tok != ')') {
2824 parseerror(parser, "`deprecated` attribute expected `)` after parameter");
2828 if (!parser_next(parser)) {
2829 parseerror(parser, "parse error in attribute");
2834 if (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2835 parseerror(parser, "`deprecated` attribute expected `]]`");
2838 if (*message) mem_d(*message);
2846 /* Skip tokens until we hit a ]] */
2847 (void)!parsewarning(parser, WARN_UNKNOWN_ATTRIBUTE, "unknown attribute starting with `%s`", parser_tokval(parser));
2848 while (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2849 if (!parser_next(parser)) {
2850 parseerror(parser, "error inside attribute");
2857 else if (with_local && !strcmp(parser_tokval(parser), "static"))
2859 else if (!strcmp(parser_tokval(parser), "const"))
2861 else if (!strcmp(parser_tokval(parser), "var"))
2863 else if (with_local && !strcmp(parser_tokval(parser), "local"))
2865 else if (!strcmp(parser_tokval(parser), "noref"))
2867 else if (!had_const && !had_var && !had_noref && !had_attrib && !had_static && !flags) {
2872 if (!parser_next(parser))
2882 *is_static = had_static;
2886 parseerror(parser, "parse error after variable qualifier");
2891 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out);
2892 static bool parse_switch(parser_t *parser, ast_block *block, ast_expression **out)
2897 /* skip the 'while' and get the body */
2898 if (!parser_next(parser)) {
2899 if (OPTS_FLAG(LOOP_LABELS))
2900 parseerror(parser, "expected loop label or 'switch' operand in parenthesis");
2902 parseerror(parser, "expected 'switch' operand in parenthesis");
2906 if (parser->tok == ':') {
2907 if (!OPTS_FLAG(LOOP_LABELS))
2908 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2909 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2910 parseerror(parser, "expected loop label");
2913 label = util_strdup(parser_tokval(parser));
2914 if (!parser_next(parser)) {
2916 parseerror(parser, "expected 'switch' operand in parenthesis");
2921 if (parser->tok != '(') {
2922 parseerror(parser, "expected 'switch' operand in parenthesis");
2926 vec_push(parser->breaks, label);
2928 rv = parse_switch_go(parser, block, out);
2931 if (vec_last(parser->breaks) != label) {
2932 parseerror(parser, "internal error: label stack corrupted");
2938 vec_pop(parser->breaks);
2943 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out)
2945 ast_expression *operand;
2948 ast_switch *switchnode;
2949 ast_switch_case swcase;
2952 bool noref, is_static;
2953 uint32_t qflags = 0;
2955 lex_ctx_t ctx = parser_ctx(parser);
2957 (void)block; /* not touching */
2960 /* parse into the expression */
2961 if (!parser_next(parser)) {
2962 parseerror(parser, "expected switch operand");
2965 /* parse the operand */
2966 operand = parse_expression_leave(parser, false, false, false);
2970 switchnode = ast_switch_new(ctx, operand);
2973 if (parser->tok != ')') {
2974 ast_delete(switchnode);
2975 parseerror(parser, "expected closing paren after 'switch' operand");
2979 /* parse over the opening paren */
2980 if (!parser_next(parser) || parser->tok != '{') {
2981 ast_delete(switchnode);
2982 parseerror(parser, "expected list of cases");
2986 if (!parser_next(parser)) {
2987 ast_delete(switchnode);
2988 parseerror(parser, "expected 'case' or 'default'");
2992 /* new block; allow some variables to be declared here */
2993 parser_enterblock(parser);
2996 if (parser->tok == TOKEN_IDENT)
2997 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
2998 if (typevar || parser->tok == TOKEN_TYPENAME) {
2999 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL)) {
3000 ast_delete(switchnode);
3005 if (parse_qualifiers(parser, true, &cvq, &noref, &is_static, &qflags, NULL))
3007 if (cvq == CV_WRONG) {
3008 ast_delete(switchnode);
3011 if (!parse_variable(parser, block, false, cvq, NULL, noref, is_static, qflags, NULL)) {
3012 ast_delete(switchnode);
3021 while (parser->tok != '}') {
3022 ast_block *caseblock;
3024 if (!strcmp(parser_tokval(parser), "case")) {
3025 if (!parser_next(parser)) {
3026 ast_delete(switchnode);
3027 parseerror(parser, "expected expression for case");
3030 swcase.value = parse_expression_leave(parser, false, false, false);
3031 if (!swcase.value) {
3032 ast_delete(switchnode);
3033 parseerror(parser, "expected expression for case");
3036 if (!OPTS_FLAG(RELAXED_SWITCH)) {
3037 if (!ast_istype(swcase.value, ast_value)) { /* || ((ast_value*)swcase.value)->cvq != CV_CONST) { */
3038 parseerror(parser, "case on non-constant values need to be explicitly enabled via -frelaxed-switch");
3044 else if (!strcmp(parser_tokval(parser), "default")) {
3045 swcase.value = NULL;
3046 if (!parser_next(parser)) {
3047 ast_delete(switchnode);
3048 parseerror(parser, "expected colon");
3053 ast_delete(switchnode);
3054 parseerror(parser, "expected 'case' or 'default'");
3058 /* Now the colon and body */
3059 if (parser->tok != ':') {
3060 if (swcase.value) ast_unref(swcase.value);
3061 ast_delete(switchnode);
3062 parseerror(parser, "expected colon");
3066 if (!parser_next(parser)) {
3067 if (swcase.value) ast_unref(swcase.value);
3068 ast_delete(switchnode);
3069 parseerror(parser, "expected statements or case");
3072 caseblock = ast_block_new(parser_ctx(parser));
3074 if (swcase.value) ast_unref(swcase.value);
3075 ast_delete(switchnode);
3078 swcase.code = (ast_expression*)caseblock;
3079 vec_push(switchnode->cases, swcase);
3081 ast_expression *expr;
3082 if (parser->tok == '}')
3084 if (parser->tok == TOKEN_KEYWORD) {
3085 if (!strcmp(parser_tokval(parser), "case") ||
3086 !strcmp(parser_tokval(parser), "default"))
3091 if (!parse_statement(parser, caseblock, &expr, true)) {
3092 ast_delete(switchnode);
3097 if (!ast_block_add_expr(caseblock, expr)) {
3098 ast_delete(switchnode);
3104 parser_leaveblock(parser);
3107 if (parser->tok != '}') {
3108 ast_delete(switchnode);
3109 parseerror(parser, "expected closing paren of case list");
3112 if (!parser_next(parser)) {
3113 ast_delete(switchnode);
3114 parseerror(parser, "parse error after switch");
3117 *out = (ast_expression*)switchnode;
3121 /* parse computed goto sides */
3122 static ast_expression *parse_goto_computed(parser_t *parser, ast_expression **side) {
3123 ast_expression *on_true;
3124 ast_expression *on_false;
3125 ast_expression *cond;
3130 if (ast_istype(*side, ast_ternary)) {
3131 ast_ternary *tern = (ast_ternary*)*side;
3132 on_true = parse_goto_computed(parser, &tern->on_true);
3133 on_false = parse_goto_computed(parser, &tern->on_false);
3135 if (!on_true || !on_false) {
3136 parseerror(parser, "expected label or expression in ternary");
3137 if (on_true) ast_unref(on_true);
3138 if (on_false) ast_unref(on_false);
3146 return (ast_expression*)ast_ifthen_new(parser_ctx(parser), cond, on_true, on_false);
3147 } else if (ast_istype(*side, ast_label)) {
3148 ast_goto *gt = ast_goto_new(parser_ctx(parser), ((ast_label*)*side)->name);
3149 ast_goto_set_label(gt, ((ast_label*)*side));
3151 return (ast_expression*)gt;
3156 static bool parse_goto(parser_t *parser, ast_expression **out)
3158 ast_goto *gt = NULL;
3159 ast_expression *lbl;
3161 if (!parser_next(parser))
3164 if (parser->tok != TOKEN_IDENT) {
3165 ast_expression *expression;
3167 /* could be an expression i.e computed goto :-) */
3168 if (parser->tok != '(') {
3169 parseerror(parser, "expected label name after `goto`");
3173 /* failed to parse expression for goto */
3174 if (!(expression = parse_expression(parser, false, true)) ||
3175 !(*out = parse_goto_computed(parser, &expression))) {
3176 parseerror(parser, "invalid goto expression");
3178 ast_unref(expression);
3185 /* not computed goto */
3186 gt = ast_goto_new(parser_ctx(parser), parser_tokval(parser));
3187 lbl = parser_find_label(parser, gt->name);
3189 if (!ast_istype(lbl, ast_label)) {
3190 parseerror(parser, "internal error: label is not an ast_label");
3194 ast_goto_set_label(gt, (ast_label*)lbl);
3197 vec_push(parser->gotos, gt);
3199 if (!parser_next(parser) || parser->tok != ';') {
3200 parseerror(parser, "semicolon expected after goto label");
3203 if (!parser_next(parser)) {
3204 parseerror(parser, "parse error after goto");
3208 *out = (ast_expression*)gt;
3212 static bool parse_skipwhite(parser_t *parser)
3215 if (!parser_next(parser))
3217 } while (parser->tok == TOKEN_WHITE && parser->tok < TOKEN_ERROR);
3218 return parser->tok < TOKEN_ERROR;
3221 static bool parse_eol(parser_t *parser)
3223 if (!parse_skipwhite(parser))
3225 return parser->tok == TOKEN_EOL;
3228 static bool parse_pragma_do(parser_t *parser)
3230 if (!parser_next(parser) ||
3231 parser->tok != TOKEN_IDENT ||
3232 strcmp(parser_tokval(parser), "pragma"))
3234 parseerror(parser, "expected `pragma` keyword after `#`, got `%s`", parser_tokval(parser));
3237 if (!parse_skipwhite(parser) || parser->tok != TOKEN_IDENT) {
3238 parseerror(parser, "expected pragma, got `%s`", parser_tokval(parser));
3242 if (!strcmp(parser_tokval(parser), "noref")) {
3243 if (!parse_skipwhite(parser) || parser->tok != TOKEN_INTCONST) {
3244 parseerror(parser, "`noref` pragma requires an argument: 0 or 1");
3247 parser->noref = !!parser_token(parser)->constval.i;
3248 if (!parse_eol(parser)) {
3249 parseerror(parser, "parse error after `noref` pragma");
3255 (void)!parsewarning(parser, WARN_UNKNOWN_PRAGMAS, "ignoring #pragma %s", parser_tokval(parser));
3262 static bool parse_pragma(parser_t *parser)
3265 parser->lex->flags.preprocessing = true;
3266 parser->lex->flags.mergelines = true;
3267 rv = parse_pragma_do(parser);
3268 if (parser->tok != TOKEN_EOL) {
3269 parseerror(parser, "junk after pragma");
3272 parser->lex->flags.preprocessing = false;
3273 parser->lex->flags.mergelines = false;
3274 if (!parser_next(parser)) {
3275 parseerror(parser, "parse error after pragma");
3281 static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases)
3283 bool noref, is_static;
3285 uint32_t qflags = 0;
3286 ast_value *typevar = NULL;
3287 char *vstring = NULL;
3291 if (parser->tok == TOKEN_IDENT)
3292 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
3294 if (typevar || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
3296 /* local variable */
3298 parseerror(parser, "cannot declare a variable from here");
3301 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
3302 if (parsewarning(parser, WARN_EXTENSIONS, "missing 'local' keyword when declaring a local variable"))
3305 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL))
3309 else if (parse_qualifiers(parser, !!block, &cvq, &noref, &is_static, &qflags, &vstring))
3311 if (cvq == CV_WRONG)
3313 return parse_variable(parser, block, true, cvq, NULL, noref, is_static, qflags, vstring);
3315 else if (parser->tok == TOKEN_KEYWORD)
3317 if (!strcmp(parser_tokval(parser), "__builtin_debug_printtype"))
3322 if (!parser_next(parser)) {
3323 parseerror(parser, "parse error after __builtin_debug_printtype");
3327 if (parser->tok == TOKEN_IDENT && (tdef = parser_find_typedef(parser, parser_tokval(parser), 0)))
3329 ast_type_to_string((ast_expression*)tdef, ty, sizeof(ty));
3330 con_out("__builtin_debug_printtype: `%s`=`%s`\n", tdef->name, ty);
3331 if (!parser_next(parser)) {
3332 parseerror(parser, "parse error after __builtin_debug_printtype typename argument");
3338 if (!parse_statement(parser, block, out, allow_cases))
3341 con_out("__builtin_debug_printtype: got no output node\n");
3344 ast_type_to_string(*out, ty, sizeof(ty));
3345 con_out("__builtin_debug_printtype: `%s`\n", ty);
3350 else if (!strcmp(parser_tokval(parser), "return"))
3352 return parse_return(parser, block, out);
3354 else if (!strcmp(parser_tokval(parser), "if"))
3356 return parse_if(parser, block, out);
3358 else if (!strcmp(parser_tokval(parser), "while"))
3360 return parse_while(parser, block, out);
3362 else if (!strcmp(parser_tokval(parser), "do"))
3364 return parse_dowhile(parser, block, out);
3366 else if (!strcmp(parser_tokval(parser), "for"))
3368 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
3369 if (parsewarning(parser, WARN_EXTENSIONS, "for loops are not recognized in the original Quake C standard, to enable try an alternate standard --std=?"))
3372 return parse_for(parser, block, out);
3374 else if (!strcmp(parser_tokval(parser), "break"))
3376 return parse_break_continue(parser, block, out, false);
3378 else if (!strcmp(parser_tokval(parser), "continue"))
3380 return parse_break_continue(parser, block, out, true);
3382 else if (!strcmp(parser_tokval(parser), "switch"))
3384 return parse_switch(parser, block, out);
3386 else if (!strcmp(parser_tokval(parser), "case") ||
3387 !strcmp(parser_tokval(parser), "default"))
3390 parseerror(parser, "unexpected 'case' label");
3395 else if (!strcmp(parser_tokval(parser), "goto"))
3397 return parse_goto(parser, out);
3399 else if (!strcmp(parser_tokval(parser), "typedef"))
3401 if (!parser_next(parser)) {
3402 parseerror(parser, "expected type definition after 'typedef'");
3405 return parse_typedef(parser);
3407 parseerror(parser, "Unexpected keyword: `%s'", parser_tokval(parser));
3410 else if (parser->tok == '{')
3413 inner = parse_block(parser);
3416 *out = (ast_expression*)inner;
3419 else if (parser->tok == ':')
3423 if (!parser_next(parser)) {
3424 parseerror(parser, "expected label name");
3427 if (parser->tok != TOKEN_IDENT) {
3428 parseerror(parser, "label must be an identifier");
3431 label = (ast_label*)parser_find_label(parser, parser_tokval(parser));
3433 if (!label->undefined) {
3434 parseerror(parser, "label `%s` already defined", label->name);
3437 label->undefined = false;
3440 label = ast_label_new(parser_ctx(parser), parser_tokval(parser), false);
3441 vec_push(parser->labels, label);
3443 *out = (ast_expression*)label;
3444 if (!parser_next(parser)) {
3445 parseerror(parser, "parse error after label");
3448 for (i = 0; i < vec_size(parser->gotos); ++i) {
3449 if (!strcmp(parser->gotos[i]->name, label->name)) {
3450 ast_goto_set_label(parser->gotos[i], label);
3451 vec_remove(parser->gotos, i, 1);
3457 else if (parser->tok == ';')
3459 if (!parser_next(parser)) {
3460 parseerror(parser, "parse error after empty statement");
3467 lex_ctx_t ctx = parser_ctx(parser);
3468 ast_expression *exp = parse_expression(parser, false, false);
3472 if (!ast_side_effects(exp)) {
3473 if (compile_warning(ctx, WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
3480 static bool parse_enum(parser_t *parser)
3483 bool reverse = false;
3485 ast_value **values = NULL;
3486 ast_value *var = NULL;
3489 ast_expression *old;
3491 if (!parser_next(parser) || (parser->tok != '{' && parser->tok != ':')) {
3492 parseerror(parser, "expected `{` or `:` after `enum` keyword");
3496 /* enumeration attributes (can add more later) */
3497 if (parser->tok == ':') {
3498 if (!parser_next(parser) || parser->tok != TOKEN_IDENT){
3499 parseerror(parser, "expected `flag` or `reverse` for enumeration attribute");
3504 if (!strcmp(parser_tokval(parser), "flag")) {
3508 else if (!strcmp(parser_tokval(parser), "reverse")) {
3512 parseerror(parser, "invalid attribute `%s` for enumeration", parser_tokval(parser));
3516 if (!parser_next(parser) || parser->tok != '{') {
3517 parseerror(parser, "expected `{` after enum attribute ");
3523 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
3524 if (parser->tok == '}') {
3525 /* allow an empty enum */
3528 parseerror(parser, "expected identifier or `}`");
3532 old = parser_find_field(parser, parser_tokval(parser));
3534 old = parser_find_global(parser, parser_tokval(parser));
3536 parseerror(parser, "value `%s` has already been declared here: %s:%i",
3537 parser_tokval(parser), ast_ctx(old).file, ast_ctx(old).line);
3541 var = ast_value_new(parser_ctx(parser), parser_tokval(parser), TYPE_FLOAT);
3542 vec_push(values, var);
3543 var->cvq = CV_CONST;
3544 var->hasvalue = true;
3546 /* for flagged enumerations increment in POTs of TWO */
3547 var->constval.vfloat = (flag) ? (num *= 2) : (num ++);
3548 parser_addglobal(parser, var->name, (ast_expression*)var);
3550 if (!parser_next(parser)) {
3551 parseerror(parser, "expected `=`, `}` or comma after identifier");
3555 if (parser->tok == ',')
3557 if (parser->tok == '}')
3559 if (parser->tok != '=') {
3560 parseerror(parser, "expected `=`, `}` or comma after identifier");
3564 if (!parser_next(parser)) {
3565 parseerror(parser, "expected expression after `=`");
3569 /* We got a value! */
3570 old = parse_expression_leave(parser, true, false, false);
3571 asvalue = (ast_value*)old;
3572 if (!ast_istype(old, ast_value) || asvalue->cvq != CV_CONST || !asvalue->hasvalue) {
3573 compile_error(ast_ctx(var), "constant value or expression expected");
3576 num = (var->constval.vfloat = asvalue->constval.vfloat) + 1;
3578 if (parser->tok == '}')
3580 if (parser->tok != ',') {
3581 parseerror(parser, "expected `}` or comma after expression");
3586 /* patch them all (for reversed attribute) */
3589 for (i = 0; i < vec_size(values); i++)
3590 values[i]->constval.vfloat = vec_size(values) - i - 1;
3593 if (parser->tok != '}') {
3594 parseerror(parser, "internal error: breaking without `}`");
3598 if (!parser_next(parser) || parser->tok != ';') {
3599 parseerror(parser, "expected semicolon after enumeration");
3603 if (!parser_next(parser)) {
3604 parseerror(parser, "parse error after enumeration");
3616 static bool parse_block_into(parser_t *parser, ast_block *block)
3620 parser_enterblock(parser);
3622 if (!parser_next(parser)) { /* skip the '{' */
3623 parseerror(parser, "expected function body");
3627 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
3629 ast_expression *expr = NULL;
3630 if (parser->tok == '}')
3633 if (!parse_statement(parser, block, &expr, false)) {
3634 /* parseerror(parser, "parse error"); */
3640 if (!ast_block_add_expr(block, expr)) {
3647 if (parser->tok != '}') {
3650 (void)parser_next(parser);
3654 if (!parser_leaveblock(parser))
3656 return retval && !!block;
3659 static ast_block* parse_block(parser_t *parser)
3662 block = ast_block_new(parser_ctx(parser));
3665 if (!parse_block_into(parser, block)) {
3666 ast_block_delete(block);
3672 static bool parse_statement_or_block(parser_t *parser, ast_expression **out)
3674 if (parser->tok == '{') {
3675 *out = (ast_expression*)parse_block(parser);
3678 return parse_statement(parser, NULL, out, false);
3681 static bool create_vector_members(ast_value *var, ast_member **me)
3684 size_t len = strlen(var->name);
3686 for (i = 0; i < 3; ++i) {
3687 char *name = (char*)mem_a(len+3);
3688 memcpy(name, var->name, len);
3690 name[len+1] = 'x'+i;
3692 me[i] = ast_member_new(ast_ctx(var), (ast_expression*)var, i, name);
3701 do { ast_member_delete(me[--i]); } while(i);
3705 static bool parse_function_body(parser_t *parser, ast_value *var)
3707 ast_block *block = NULL;
3712 ast_expression *framenum = NULL;
3713 ast_expression *nextthink = NULL;
3714 /* None of the following have to be deleted */
3715 ast_expression *fld_think = NULL, *fld_nextthink = NULL, *fld_frame = NULL;
3716 ast_expression *gbl_time = NULL, *gbl_self = NULL;
3717 bool has_frame_think;
3721 has_frame_think = false;
3722 old = parser->function;
3724 if (var->expression.flags & AST_FLAG_ALIAS) {
3725 parseerror(parser, "function aliases cannot have bodies");
3729 if (vec_size(parser->gotos) || vec_size(parser->labels)) {
3730 parseerror(parser, "gotos/labels leaking");
3734 if (!OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC) {
3735 if (parsewarning(parser, WARN_VARIADIC_FUNCTION,
3736 "variadic function with implementation will not be able to access additional parameters (try -fvariadic-args)"))
3742 if (parser->tok == '[') {
3743 /* got a frame definition: [ framenum, nextthink ]
3744 * this translates to:
3745 * self.frame = framenum;
3746 * self.nextthink = time + 0.1;
3747 * self.think = nextthink;
3751 fld_think = parser_find_field(parser, "think");
3752 fld_nextthink = parser_find_field(parser, "nextthink");
3753 fld_frame = parser_find_field(parser, "frame");
3754 if (!fld_think || !fld_nextthink || !fld_frame) {
3755 parseerror(parser, "cannot use [frame,think] notation without the required fields");
3756 parseerror(parser, "please declare the following entityfields: `frame`, `think`, `nextthink`");
3759 gbl_time = parser_find_global(parser, "time");
3760 gbl_self = parser_find_global(parser, "self");
3761 if (!gbl_time || !gbl_self) {
3762 parseerror(parser, "cannot use [frame,think] notation without the required globals");
3763 parseerror(parser, "please declare the following globals: `time`, `self`");
3767 if (!parser_next(parser))
3770 framenum = parse_expression_leave(parser, true, false, false);
3772 parseerror(parser, "expected a framenumber constant in[frame,think] notation");
3775 if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->hasvalue) {
3776 ast_unref(framenum);
3777 parseerror(parser, "framenumber in [frame,think] notation must be a constant");
3781 if (parser->tok != ',') {
3782 ast_unref(framenum);
3783 parseerror(parser, "expected comma after frame number in [frame,think] notation");
3784 parseerror(parser, "Got a %i\n", parser->tok);
3788 if (!parser_next(parser)) {
3789 ast_unref(framenum);
3793 if (parser->tok == TOKEN_IDENT && !parser_find_var(parser, parser_tokval(parser)))
3795 /* qc allows the use of not-yet-declared functions here
3796 * - this automatically creates a prototype */
3797 ast_value *thinkfunc;
3798 ast_expression *functype = fld_think->next;
3800 thinkfunc = ast_value_new(parser_ctx(parser), parser_tokval(parser), functype->vtype);
3801 if (!thinkfunc) { /* || !ast_type_adopt(thinkfunc, functype)*/
3802 ast_unref(framenum);
3803 parseerror(parser, "failed to create implicit prototype for `%s`", parser_tokval(parser));
3806 ast_type_adopt(thinkfunc, functype);
3808 if (!parser_next(parser)) {
3809 ast_unref(framenum);
3810 ast_delete(thinkfunc);
3814 parser_addglobal(parser, thinkfunc->name, (ast_expression*)thinkfunc);
3816 nextthink = (ast_expression*)thinkfunc;
3819 nextthink = parse_expression_leave(parser, true, false, false);
3821 ast_unref(framenum);
3822 parseerror(parser, "expected a think-function in [frame,think] notation");
3827 if (!ast_istype(nextthink, ast_value)) {
3828 parseerror(parser, "think-function in [frame,think] notation must be a constant");
3832 if (retval && parser->tok != ']') {
3833 parseerror(parser, "expected closing `]` for [frame,think] notation");
3837 if (retval && !parser_next(parser)) {
3841 if (retval && parser->tok != '{') {
3842 parseerror(parser, "a function body has to be declared after a [frame,think] declaration");
3847 ast_unref(nextthink);
3848 ast_unref(framenum);
3852 has_frame_think = true;
3855 block = ast_block_new(parser_ctx(parser));
3857 parseerror(parser, "failed to allocate block");
3858 if (has_frame_think) {
3859 ast_unref(nextthink);
3860 ast_unref(framenum);
3865 if (has_frame_think) {
3867 ast_expression *self_frame;
3868 ast_expression *self_nextthink;
3869 ast_expression *self_think;
3870 ast_expression *time_plus_1;
3871 ast_store *store_frame;
3872 ast_store *store_nextthink;
3873 ast_store *store_think;
3875 ctx = parser_ctx(parser);
3876 self_frame = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_frame);
3877 self_nextthink = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_nextthink);
3878 self_think = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_think);
3880 time_plus_1 = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F,
3881 gbl_time, (ast_expression*)fold_constgen_float(parser->fold, 0.1));
3883 if (!self_frame || !self_nextthink || !self_think || !time_plus_1) {
3884 if (self_frame) ast_delete(self_frame);
3885 if (self_nextthink) ast_delete(self_nextthink);
3886 if (self_think) ast_delete(self_think);
3887 if (time_plus_1) ast_delete(time_plus_1);
3893 store_frame = ast_store_new(ctx, INSTR_STOREP_F, self_frame, framenum);
3894 store_nextthink = ast_store_new(ctx, INSTR_STOREP_F, self_nextthink, time_plus_1);
3895 store_think = ast_store_new(ctx, INSTR_STOREP_FNC, self_think, nextthink);
3898 ast_delete(self_frame);
3901 if (!store_nextthink) {
3902 ast_delete(self_nextthink);
3906 ast_delete(self_think);
3910 if (store_frame) ast_delete(store_frame);
3911 if (store_nextthink) ast_delete(store_nextthink);
3912 if (store_think) ast_delete(store_think);
3915 if (!ast_block_add_expr(block, (ast_expression*)store_frame) ||
3916 !ast_block_add_expr(block, (ast_expression*)store_nextthink) ||
3917 !ast_block_add_expr(block, (ast_expression*)store_think))
3924 parseerror(parser, "failed to generate code for [frame,think]");
3925 ast_unref(nextthink);
3926 ast_unref(framenum);
3932 if (var->hasvalue) {
3933 parseerror(parser, "function `%s` declared with multiple bodies", var->name);
3934 ast_block_delete(block);
3938 func = ast_function_new(ast_ctx(var), var->name, var);
3940 parseerror(parser, "failed to allocate function for `%s`", var->name);
3941 ast_block_delete(block);
3944 vec_push(parser->functions, func);
3946 parser_enterblock(parser);
3948 for (parami = 0; parami < vec_size(var->expression.params); ++parami) {
3950 ast_value *param = var->expression.params[parami];
3953 if (param->expression.vtype != TYPE_VECTOR &&
3954 (param->expression.vtype != TYPE_FIELD ||
3955 param->expression.next->vtype != TYPE_VECTOR))
3960 if (!create_vector_members(param, me)) {
3961 ast_block_delete(block);
3965 for (e = 0; e < 3; ++e) {
3966 parser_addlocal(parser, me[e]->name, (ast_expression*)me[e]);
3967 ast_block_collect(block, (ast_expression*)me[e]);
3971 if (var->argcounter) {
3972 ast_value *argc = ast_value_new(ast_ctx(var), var->argcounter, TYPE_FLOAT);
3973 parser_addlocal(parser, argc->name, (ast_expression*)argc);
3977 if (OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC) {
3979 ast_value *varargs = ast_value_new(ast_ctx(var), "reserved:va_args", TYPE_ARRAY);
3980 varargs->expression.flags |= AST_FLAG_IS_VARARG;
3981 varargs->expression.next = (ast_expression*)ast_value_new(ast_ctx(var), NULL, TYPE_VECTOR);
3982 varargs->expression.count = 0;
3983 util_snprintf(name, sizeof(name), "%s##va##SET", var->name);
3984 if (!parser_create_array_setter_proto(parser, varargs, name)) {
3985 ast_delete(varargs);
3986 ast_block_delete(block);
3989 util_snprintf(name, sizeof(name), "%s##va##GET", var->name);
3990 if (!parser_create_array_getter_proto(parser, varargs, varargs->expression.next, name)) {
3991 ast_delete(varargs);
3992 ast_block_delete(block);
3995 func->varargs = varargs;
3996 func->fixedparams = (ast_value*)fold_constgen_float(parser->fold, vec_size(var->expression.params));
3999 parser->function = func;
4000 if (!parse_block_into(parser, block)) {
4001 ast_block_delete(block);
4005 vec_push(func->blocks, block);
4008 parser->function = old;
4009 if (!parser_leaveblock(parser))
4011 if (vec_size(parser->variables) != PARSER_HT_LOCALS) {
4012 parseerror(parser, "internal error: local scopes left");
4016 if (parser->tok == ';')
4017 return parser_next(parser);
4018 else if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
4019 parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)");
4023 (void)!parser_leaveblock(parser);
4024 vec_pop(parser->functions);
4025 ast_function_delete(func);
4026 var->constval.vfunc = NULL;
4029 parser->function = old;
4033 static ast_expression *array_accessor_split(
4038 ast_expression *left,
4039 ast_expression *right
4045 lex_ctx_t ctx = ast_ctx(array);
4047 if (!left || !right) {
4048 if (left) ast_delete(left);
4049 if (right) ast_delete(right);
4053 cmp = ast_binary_new(ctx, INSTR_LT,
4054 (ast_expression*)index,
4055 (ast_expression*)fold_constgen_float(parser->fold, middle));
4059 parseerror(parser, "internal error: failed to create comparison for array setter");
4063 ifthen = ast_ifthen_new(ctx, (ast_expression*)cmp, left, right);
4065 ast_delete(cmp); /* will delete left and right */
4066 parseerror(parser, "internal error: failed to create conditional jump for array setter");
4070 return (ast_expression*)ifthen;
4073 static ast_expression *array_setter_node(parser_t *parser, ast_value *array, ast_value *index, ast_value *value, size_t from, size_t afterend)
4075 lex_ctx_t ctx = ast_ctx(array);
4077 if (from+1 == afterend) {
4078 /* set this value */
4081 ast_array_index *subscript;
4083 int assignop = type_store_instr[value->expression.vtype];
4085 if (value->expression.vtype == TYPE_FIELD && value->expression.next->vtype == TYPE_VECTOR)
4086 assignop = INSTR_STORE_V;
4088 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)fold_constgen_float(parser->fold, from));
4092 st = ast_store_new(ctx, assignop, (ast_expression*)subscript, (ast_expression*)value);
4094 ast_delete(subscript);
4098 block = ast_block_new(ctx);
4104 if (!ast_block_add_expr(block, (ast_expression*)st)) {
4109 ret = ast_return_new(ctx, NULL);
4115 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
4120 return (ast_expression*)block;
4122 ast_expression *left, *right;
4123 size_t diff = afterend - from;
4124 size_t middle = from + diff/2;
4125 left = array_setter_node(parser, array, index, value, from, middle);
4126 right = array_setter_node(parser, array, index, value, middle, afterend);
4127 return array_accessor_split(parser, array, index, middle, left, right);
4131 static ast_expression *array_field_setter_node(
4140 lex_ctx_t ctx = ast_ctx(array);
4142 if (from+1 == afterend) {
4143 /* set this value */
4146 ast_entfield *entfield;
4147 ast_array_index *subscript;
4149 int assignop = type_storep_instr[value->expression.vtype];
4151 if (value->expression.vtype == TYPE_FIELD && value->expression.next->vtype == TYPE_VECTOR)
4152 assignop = INSTR_STOREP_V;
4154 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)fold_constgen_float(parser->fold, from));
4158 subscript->expression.next = ast_type_copy(ast_ctx(subscript), (ast_expression*)subscript);
4159 subscript->expression.vtype = TYPE_FIELD;
4161 entfield = ast_entfield_new_force(ctx,
4162 (ast_expression*)entity,
4163 (ast_expression*)subscript,
4164 (ast_expression*)subscript);
4166 ast_delete(subscript);
4170 st = ast_store_new(ctx, assignop, (ast_expression*)entfield, (ast_expression*)value);
4172 ast_delete(entfield);
4176 block = ast_block_new(ctx);
4182 if (!ast_block_add_expr(block, (ast_expression*)st)) {
4187 ret = ast_return_new(ctx, NULL);
4193 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
4198 return (ast_expression*)block;
4200 ast_expression *left, *right;
4201 size_t diff = afterend - from;
4202 size_t middle = from + diff/2;
4203 left = array_field_setter_node(parser, array, entity, index, value, from, middle);
4204 right = array_field_setter_node(parser, array, entity, index, value, middle, afterend);
4205 return array_accessor_split(parser, array, index, middle, left, right);
4209 static ast_expression *array_getter_node(parser_t *parser, ast_value *array, ast_value *index, size_t from, size_t afterend)
4211 lex_ctx_t ctx = ast_ctx(array);
4213 if (from+1 == afterend) {
4215 ast_array_index *subscript;
4217 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)fold_constgen_float(parser->fold, from));
4221 ret = ast_return_new(ctx, (ast_expression*)subscript);
4223 ast_delete(subscript);
4227 return (ast_expression*)ret;
4229 ast_expression *left, *right;
4230 size_t diff = afterend - from;
4231 size_t middle = from + diff/2;
4232 left = array_getter_node(parser, array, index, from, middle);
4233 right = array_getter_node(parser, array, index, middle, afterend);
4234 return array_accessor_split(parser, array, index, middle, left, right);
4238 static bool parser_create_array_accessor(parser_t *parser, ast_value *array, const char *funcname, ast_value **out)
4240 ast_function *func = NULL;
4241 ast_value *fval = NULL;
4242 ast_block *body = NULL;
4244 fval = ast_value_new(ast_ctx(array), funcname, TYPE_FUNCTION);
4246 parseerror(parser, "failed to create accessor function value");
4250 func = ast_function_new(ast_ctx(array), funcname, fval);
4253 parseerror(parser, "failed to create accessor function node");
4257 body = ast_block_new(ast_ctx(array));
4259 parseerror(parser, "failed to create block for array accessor");
4265 vec_push(func->blocks, body);
4268 vec_push(parser->accessors, fval);
4273 static ast_value* parser_create_array_setter_proto(parser_t *parser, ast_value *array, const char *funcname)
4275 ast_value *index = NULL;
4276 ast_value *value = NULL;
4280 if (!ast_istype(array->expression.next, ast_value)) {
4281 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4285 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4287 func = fval->constval.vfunc;
4288 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
4290 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4291 value = ast_value_copy((ast_value*)array->expression.next);
4293 if (!index || !value) {
4294 parseerror(parser, "failed to create locals for array accessor");
4297 (void)!ast_value_set_name(value, "value"); /* not important */
4298 vec_push(fval->expression.params, index);
4299 vec_push(fval->expression.params, value);
4301 array->setter = fval;
4304 if (index) ast_delete(index);
4305 if (value) ast_delete(value);
4311 static bool parser_create_array_setter_impl(parser_t *parser, ast_value *array)
4313 ast_expression *root = NULL;
4314 root = array_setter_node(parser, array,
4315 array->setter->expression.params[0],
4316 array->setter->expression.params[1],
4317 0, array->expression.count);
4319 parseerror(parser, "failed to build accessor search tree");
4322 if (!ast_block_add_expr(array->setter->constval.vfunc->blocks[0], root)) {
4329 static bool parser_create_array_setter(parser_t *parser, ast_value *array, const char *funcname)
4331 if (!parser_create_array_setter_proto(parser, array, funcname))
4333 return parser_create_array_setter_impl(parser, array);
4336 static bool parser_create_array_field_setter(parser_t *parser, ast_value *array, const char *funcname)
4338 ast_expression *root = NULL;
4339 ast_value *entity = NULL;
4340 ast_value *index = NULL;
4341 ast_value *value = NULL;
4345 if (!ast_istype(array->expression.next, ast_value)) {
4346 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4350 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4352 func = fval->constval.vfunc;
4353 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
4355 entity = ast_value_new(ast_ctx(array), "entity", TYPE_ENTITY);
4356 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4357 value = ast_value_copy((ast_value*)array->expression.next);
4358 if (!entity || !index || !value) {
4359 parseerror(parser, "failed to create locals for array accessor");
4362 (void)!ast_value_set_name(value, "value"); /* not important */
4363 vec_push(fval->expression.params, entity);
4364 vec_push(fval->expression.params, index);
4365 vec_push(fval->expression.params, value);
4367 root = array_field_setter_node(parser, array, entity, index, value, 0, array->expression.count);
4369 parseerror(parser, "failed to build accessor search tree");
4373 array->setter = fval;
4374 return ast_block_add_expr(func->blocks[0], root);
4376 if (entity) ast_delete(entity);
4377 if (index) ast_delete(index);
4378 if (value) ast_delete(value);
4379 if (root) ast_delete(root);
4385 static ast_value* parser_create_array_getter_proto(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
4387 ast_value *index = NULL;
4391 /* NOTE: checking array->expression.next rather than elemtype since
4392 * for fields elemtype is a temporary fieldtype.
4394 if (!ast_istype(array->expression.next, ast_value)) {
4395 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4399 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4401 func = fval->constval.vfunc;
4402 fval->expression.next = ast_type_copy(ast_ctx(array), elemtype);
4404 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4407 parseerror(parser, "failed to create locals for array accessor");
4410 vec_push(fval->expression.params, index);
4412 array->getter = fval;
4415 if (index) ast_delete(index);
4421 static bool parser_create_array_getter_impl(parser_t *parser, ast_value *array)
4423 ast_expression *root = NULL;
4425 root = array_getter_node(parser, array, array->getter->expression.params[0], 0, array->expression.count);
4427 parseerror(parser, "failed to build accessor search tree");
4430 if (!ast_block_add_expr(array->getter->constval.vfunc->blocks[0], root)) {
4437 static bool parser_create_array_getter(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
4439 if (!parser_create_array_getter_proto(parser, array, elemtype, funcname))
4441 return parser_create_array_getter_impl(parser, array);
4444 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
4445 static ast_value *parse_parameter_list(parser_t *parser, ast_value *var)
4453 bool variadic = false;
4454 ast_value *varparam = NULL;
4455 char *argcounter = NULL;
4457 ctx = parser_ctx(parser);
4459 /* for the sake of less code we parse-in in this function */
4460 if (!parser_next(parser)) {
4462 parseerror(parser, "expected parameter list");
4468 /* parse variables until we hit a closing paren */
4469 while (parser->tok != ')') {
4471 /* there must be commas between them */
4472 if (parser->tok != ',') {
4473 parseerror(parser, "expected comma or end of parameter list");
4476 if (!parser_next(parser)) {
4477 parseerror(parser, "expected parameter");
4483 if (parser->tok == TOKEN_DOTS) {
4484 /* '...' indicates a varargs function */
4486 if (!parser_next(parser) || (parser->tok != ')' && parser->tok != TOKEN_IDENT)) {
4487 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4490 if (parser->tok == TOKEN_IDENT) {
4491 argcounter = util_strdup(parser_tokval(parser));
4492 if (!parser_next(parser) || parser->tok != ')') {
4493 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4500 /* for anything else just parse a typename */
4501 param = parse_typename(parser, NULL, NULL);
4504 vec_push(params, param);
4505 if (param->expression.vtype >= TYPE_VARIANT) {
4506 char tname[1024]; /* typename is reserved in C++ */
4507 ast_type_to_string((ast_expression*)param, tname, sizeof(tname));
4508 parseerror(parser, "type not supported as part of a parameter list: %s", tname);
4511 /* type-restricted varargs */
4512 if (parser->tok == TOKEN_DOTS) {
4514 varparam = vec_last(params);
4516 if (!parser_next(parser) || (parser->tok != ')' && parser->tok != TOKEN_IDENT)) {
4517 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4520 if (parser->tok == TOKEN_IDENT) {
4521 argcounter = util_strdup(parser_tokval(parser));
4522 if (!parser_next(parser) || parser->tok != ')') {
4523 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4531 if (vec_size(params) == 1 && params[0]->expression.vtype == TYPE_VOID)
4535 if (vec_size(params) > 8 && OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
4536 (void)!parsewarning(parser, WARN_EXTENSIONS, "more than 8 parameters are not supported by this standard");
4539 if (!parser_next(parser)) {
4540 parseerror(parser, "parse error after typename");
4544 /* now turn 'var' into a function type */
4545 fval = ast_value_new(ctx, "<type()>", TYPE_FUNCTION);
4546 fval->expression.next = (ast_expression*)var;
4548 fval->expression.flags |= AST_FLAG_VARIADIC;
4551 var->expression.params = params;
4552 var->expression.varparam = (ast_expression*)varparam;
4553 var->argcounter = argcounter;
4562 ast_delete(varparam);
4564 for (i = 0; i < vec_size(params); ++i)
4565 ast_delete(params[i]);
4570 static ast_value *parse_arraysize(parser_t *parser, ast_value *var)
4572 ast_expression *cexp;
4573 ast_value *cval, *tmp;
4576 ctx = parser_ctx(parser);
4578 if (!parser_next(parser)) {
4580 parseerror(parser, "expected array-size");
4584 if (parser->tok != ']') {
4585 cexp = parse_expression_leave(parser, true, false, false);
4587 if (!cexp || !ast_istype(cexp, ast_value)) {
4591 parseerror(parser, "expected array-size as constant positive integer");
4594 cval = (ast_value*)cexp;
4601 tmp = ast_value_new(ctx, "<type[]>", TYPE_ARRAY);
4602 tmp->expression.next = (ast_expression*)var;
4606 if (cval->expression.vtype == TYPE_INTEGER)
4607 tmp->expression.count = cval->constval.vint;
4608 else if (cval->expression.vtype == TYPE_FLOAT)
4609 tmp->expression.count = cval->constval.vfloat;
4613 parseerror(parser, "array-size must be a positive integer constant");
4619 var->expression.count = -1;
4620 var->expression.flags |= AST_FLAG_ARRAY_INIT;
4623 if (parser->tok != ']') {
4625 parseerror(parser, "expected ']' after array-size");
4628 if (!parser_next(parser)) {
4630 parseerror(parser, "error after parsing array size");
4636 /* Parse a complete typename.
4637 * for single-variables (ie. function parameters or typedefs) storebase should be NULL
4638 * but when parsing variables separated by comma
4639 * 'storebase' should point to where the base-type should be kept.
4640 * The base type makes up every bit of type information which comes *before* the
4643 * The following will be parsed in its entirety:
4645 * The 'basetype' in this case is 'void()'
4646 * and if there's a comma after it, say:
4648 * then the type-information 'void()' can be stored in 'storebase'
4650 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef)
4652 ast_value *var, *tmp;
4655 const char *name = NULL;
4656 bool isfield = false;
4657 bool wasarray = false;
4658 size_t morefields = 0;
4660 ctx = parser_ctx(parser);
4662 /* types may start with a dot */
4663 if (parser->tok == '.') {
4665 /* if we parsed a dot we need a typename now */
4666 if (!parser_next(parser)) {
4667 parseerror(parser, "expected typename for field definition");
4671 /* Further dots are handled seperately because they won't be part of the
4674 while (parser->tok == '.') {
4676 if (!parser_next(parser)) {
4677 parseerror(parser, "expected typename for field definition");
4682 if (parser->tok == TOKEN_IDENT)
4683 cached_typedef = parser_find_typedef(parser, parser_tokval(parser), 0);
4684 if (!cached_typedef && parser->tok != TOKEN_TYPENAME) {
4685 parseerror(parser, "expected typename");
4689 /* generate the basic type value */
4690 if (cached_typedef) {
4691 var = ast_value_copy(cached_typedef);
4692 ast_value_set_name(var, "<type(from_def)>");
4694 var = ast_value_new(ctx, "<type>", parser_token(parser)->constval.t);
4696 for (; morefields; --morefields) {
4697 tmp = ast_value_new(ctx, "<.type>", TYPE_FIELD);
4698 tmp->expression.next = (ast_expression*)var;
4702 /* do not yet turn into a field - remember:
4703 * .void() foo; is a field too
4704 * .void()() foo; is a function
4708 if (!parser_next(parser)) {
4710 parseerror(parser, "parse error after typename");
4714 /* an opening paren now starts the parameter-list of a function
4715 * this is where original-QC has parameter lists.
4716 * We allow a single parameter list here.
4717 * Much like fteqcc we don't allow `float()() x`
4719 if (parser->tok == '(') {
4720 var = parse_parameter_list(parser, var);
4725 /* store the base if requested */
4727 *storebase = ast_value_copy(var);
4729 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
4730 tmp->expression.next = (ast_expression*)*storebase;
4735 /* there may be a name now */
4736 if (parser->tok == TOKEN_IDENT) {
4737 name = util_strdup(parser_tokval(parser));
4739 if (!parser_next(parser)) {
4742 parseerror(parser, "error after variable or field declaration");
4747 /* now this may be an array */
4748 if (parser->tok == '[') {
4750 var = parse_arraysize(parser, var);
4752 if (name) mem_d(name);
4757 /* This is the point where we can turn it into a field */
4759 /* turn it into a field if desired */
4760 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
4761 tmp->expression.next = (ast_expression*)var;
4765 /* now there may be function parens again */
4766 if (parser->tok == '(' && OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
4767 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4768 if (parser->tok == '(' && wasarray)
4769 parseerror(parser, "arrays as part of a return type is not supported");
4770 while (parser->tok == '(') {
4771 var = parse_parameter_list(parser, var);
4773 if (name) mem_d(name);
4778 /* finally name it */
4780 if (!ast_value_set_name(var, name)) {
4783 parseerror(parser, "internal error: failed to set name");
4786 /* free the name, ast_value_set_name duplicates */
4793 static bool parse_typedef(parser_t *parser)
4795 ast_value *typevar, *oldtype;
4796 ast_expression *old;
4798 typevar = parse_typename(parser, NULL, NULL);
4803 if ( (old = parser_find_var(parser, typevar->name)) ) {
4804 parseerror(parser, "cannot define a type with the same name as a variable: %s\n"
4805 " -> `%s` has been declared here: %s:%i",
4806 typevar->name, ast_ctx(old).file, ast_ctx(old).line);
4807 ast_delete(typevar);
4811 if ( (oldtype = parser_find_typedef(parser, typevar->name, vec_last(parser->_blocktypedefs))) ) {
4812 parseerror(parser, "type `%s` has already been declared here: %s:%i",
4813 typevar->name, ast_ctx(oldtype).file, ast_ctx(oldtype).line);
4814 ast_delete(typevar);
4818 vec_push(parser->_typedefs, typevar);
4819 util_htset(vec_last(parser->typedefs), typevar->name, typevar);
4821 if (parser->tok != ';') {
4822 parseerror(parser, "expected semicolon after typedef");
4825 if (!parser_next(parser)) {
4826 parseerror(parser, "parse error after typedef");
4833 static const char *cvq_to_str(int cvq) {
4835 case CV_NONE: return "none";
4836 case CV_VAR: return "`var`";
4837 case CV_CONST: return "`const`";
4838 default: return "<INVALID>";
4842 static bool parser_check_qualifiers(parser_t *parser, const ast_value *var, const ast_value *proto)
4845 if (proto->cvq != var->cvq) {
4846 if (!(proto->cvq == CV_CONST && var->cvq == CV_NONE &&
4847 !OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
4848 parser->tok == '='))
4850 return !parsewarning(parser, WARN_DIFFERENT_QUALIFIERS,
4851 "`%s` declared with different qualifiers: %s\n"
4852 " -> previous declaration here: %s:%i uses %s",
4853 var->name, cvq_to_str(var->cvq),
4854 ast_ctx(proto).file, ast_ctx(proto).line,
4855 cvq_to_str(proto->cvq));
4858 av = (var ->expression.flags & AST_FLAG_NORETURN);
4859 ao = (proto->expression.flags & AST_FLAG_NORETURN);
4861 return !parsewarning(parser, WARN_DIFFERENT_ATTRIBUTES,
4862 "`%s` declared with different attributes%s\n"
4863 " -> previous declaration here: %s:%i",
4864 var->name, (av ? ": noreturn" : ""),
4865 ast_ctx(proto).file, ast_ctx(proto).line,
4866 (ao ? ": noreturn" : ""));
4871 static bool create_array_accessors(parser_t *parser, ast_value *var)
4874 util_snprintf(name, sizeof(name), "%s##SET", var->name);
4875 if (!parser_create_array_setter(parser, var, name))
4877 util_snprintf(name, sizeof(name), "%s##GET", var->name);
4878 if (!parser_create_array_getter(parser, var, var->expression.next, name))
4883 static bool parse_array(parser_t *parser, ast_value *array)
4886 if (array->initlist) {
4887 parseerror(parser, "array already initialized elsewhere");
4890 if (!parser_next(parser)) {
4891 parseerror(parser, "parse error in array initializer");
4895 while (parser->tok != '}') {
4896 ast_value *v = (ast_value*)parse_expression_leave(parser, true, false, false);
4899 if (!ast_istype(v, ast_value) || !v->hasvalue || v->cvq != CV_CONST) {
4901 parseerror(parser, "initializing element must be a compile time constant");
4904 vec_push(array->initlist, v->constval);
4905 if (v->expression.vtype == TYPE_STRING) {
4906 array->initlist[i].vstring = util_strdupe(array->initlist[i].vstring);
4910 if (parser->tok == '}')
4912 if (parser->tok != ',' || !parser_next(parser)) {
4913 parseerror(parser, "expected comma or '}' in element list");
4917 if (!parser_next(parser) || parser->tok != ';') {
4918 parseerror(parser, "expected semicolon after initializer, got %s");
4922 if (!parser_next(parser)) {
4923 parseerror(parser, "parse error after initializer");
4928 if (array->expression.flags & AST_FLAG_ARRAY_INIT) {
4929 if (array->expression.count != (size_t)-1) {
4930 parseerror(parser, "array `%s' has already been initialized with %u elements",
4931 array->name, (unsigned)array->expression.count);
4933 array->expression.count = vec_size(array->initlist);
4934 if (!create_array_accessors(parser, array))
4940 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)
4944 ast_expression *old;
4948 ast_value *basetype = NULL;
4950 bool isparam = false;
4951 bool isvector = false;
4952 bool cleanvar = true;
4953 bool wasarray = false;
4955 ast_member *me[3] = { NULL, NULL, NULL };
4957 if (!localblock && is_static)
4958 parseerror(parser, "`static` qualifier is not supported in global scope");
4960 /* get the first complete variable */
4961 var = parse_typename(parser, &basetype, cached_typedef);
4964 ast_delete(basetype);
4972 /* Part 0: finish the type */
4973 if (parser->tok == '(') {
4974 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
4975 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4976 var = parse_parameter_list(parser, var);
4982 /* we only allow 1-dimensional arrays */
4983 if (parser->tok == '[') {
4985 var = parse_arraysize(parser, var);
4991 if (parser->tok == '(' && wasarray) {
4992 parseerror(parser, "arrays as part of a return type is not supported");
4993 /* we'll still parse the type completely for now */
4995 /* for functions returning functions */
4996 while (parser->tok == '(') {
4997 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
4998 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4999 var = parse_parameter_list(parser, var);
5006 var->cvq = qualifier;
5007 var->expression.flags |= qflags;
5010 * store the vstring back to var for alias and
5011 * deprecation messages.
5013 if (var->expression.flags & AST_FLAG_DEPRECATED ||
5014 var->expression.flags & AST_FLAG_ALIAS)
5015 var->desc = vstring;
5018 * check for validity: (end_sys_..., multiple-definitions, prototypes, ...)
5019 * Also: if there was a prototype, `var` will be deleted and set to `proto` which
5020 * is then filled with the previous definition and the parameter-names replaced.
5022 if (!strcmp(var->name, "nil")) {
5023 if (OPTS_FLAG(UNTYPED_NIL)) {
5024 if (!localblock || !OPTS_FLAG(PERMISSIVE))
5025 parseerror(parser, "name `nil` not allowed (try -fpermissive)");
5027 (void)!parsewarning(parser, WARN_RESERVED_NAMES, "variable name `nil` is reserved");
5030 /* Deal with end_sys_ vars */
5032 if (!strcmp(var->name, "end_sys_globals")) {
5034 parser->crc_globals = vec_size(parser->globals);
5037 else if (!strcmp(var->name, "end_sys_fields")) {
5039 parser->crc_fields = vec_size(parser->fields);
5042 if (was_end && var->expression.vtype == TYPE_FIELD) {
5043 if (parsewarning(parser, WARN_END_SYS_FIELDS,
5044 "global '%s' hint should not be a field",
5045 parser_tokval(parser)))
5052 if (!nofields && var->expression.vtype == TYPE_FIELD)
5054 /* deal with field declarations */
5055 old = parser_find_field(parser, var->name);
5057 if (parsewarning(parser, WARN_FIELD_REDECLARED, "field `%s` already declared here: %s:%i",
5058 var->name, ast_ctx(old).file, (int)ast_ctx(old).line))
5067 parseerror(parser, "field `%s` already declared here: %s:%i",
5068 var->name, ast_ctx(old).file, ast_ctx(old).line);
5073 if ((OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC || OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_FTEQCC) &&
5074 (old = parser_find_global(parser, var->name)))
5076 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
5077 parseerror(parser, "field `%s` already declared here: %s:%i",
5078 var->name, ast_ctx(old).file, ast_ctx(old).line);
5085 /* deal with other globals */
5086 old = parser_find_global(parser, var->name);
5087 if (old && var->expression.vtype == TYPE_FUNCTION && old->vtype == TYPE_FUNCTION)
5089 /* This is a function which had a prototype */
5090 if (!ast_istype(old, ast_value)) {
5091 parseerror(parser, "internal error: prototype is not an ast_value");
5095 proto = (ast_value*)old;
5096 proto->desc = var->desc;
5097 if (!ast_compare_type((ast_expression*)proto, (ast_expression*)var)) {
5098 parseerror(parser, "conflicting types for `%s`, previous declaration was here: %s:%i",
5100 ast_ctx(proto).file, ast_ctx(proto).line);
5104 /* we need the new parameter-names */
5105 for (i = 0; i < vec_size(proto->expression.params); ++i)
5106 ast_value_set_name(proto->expression.params[i], var->expression.params[i]->name);
5107 if (!parser_check_qualifiers(parser, var, proto)) {
5114 proto->expression.flags |= var->expression.flags;
5122 if (parsewarning(parser, WARN_DOUBLE_DECLARATION,
5123 "global `%s` already declared here: %s:%i",
5124 var->name, ast_ctx(old).file, ast_ctx(old).line))
5129 proto = (ast_value*)old;
5130 if (!ast_istype(old, ast_value)) {
5131 parseerror(parser, "internal error: not an ast_value");
5136 if (!parser_check_qualifiers(parser, var, proto)) {
5141 proto->expression.flags |= var->expression.flags;
5145 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC &&
5146 (old = parser_find_field(parser, var->name)))
5148 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
5149 parseerror(parser, "global `%s` already declared here: %s:%i",
5150 var->name, ast_ctx(old).file, ast_ctx(old).line);
5157 else /* it's not a global */
5159 old = parser_find_local(parser, var->name, vec_size(parser->variables)-1, &isparam);
5160 if (old && !isparam) {
5161 parseerror(parser, "local `%s` already declared here: %s:%i",
5162 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
5166 old = parser_find_local(parser, var->name, 0, &isparam);
5167 if (old && isparam) {
5168 if (parsewarning(parser, WARN_LOCAL_SHADOWS,
5169 "local `%s` is shadowing a parameter", var->name))
5171 parseerror(parser, "local `%s` already declared here: %s:%i",
5172 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
5176 if (OPTS_OPTION_U32(OPTION_STANDARD) != COMPILER_GMQCC) {
5184 /* in a noref section we simply bump the usecount */
5185 if (noref || parser->noref)
5189 * Create the global/local, and deal with vector types.
5192 if (var->expression.vtype == TYPE_VECTOR)
5194 else if (var->expression.vtype == TYPE_FIELD &&
5195 var->expression.next->vtype == TYPE_VECTOR)
5199 if (!create_vector_members(var, me)) {
5206 /* deal with global variables, fields, functions */
5207 if (!nofields && var->expression.vtype == TYPE_FIELD && parser->tok != '=') {
5208 var->isfield = true;
5209 vec_push(parser->fields, (ast_expression*)var);
5210 util_htset(parser->htfields, var->name, var);
5212 for (i = 0; i < 3; ++i) {
5213 vec_push(parser->fields, (ast_expression*)me[i]);
5214 util_htset(parser->htfields, me[i]->name, me[i]);
5219 if (!(var->expression.flags & AST_FLAG_ALIAS)) {
5220 parser_addglobal(parser, var->name, (ast_expression*)var);
5222 for (i = 0; i < 3; ++i) {
5223 parser_addglobal(parser, me[i]->name, (ast_expression*)me[i]);
5227 ast_expression *find = parser_find_global(parser, var->desc);
5230 compile_error(parser_ctx(parser), "undeclared variable `%s` for alias `%s`", var->desc, var->name);
5234 if (var->expression.vtype != find->vtype) {
5238 ast_type_to_string(find, ty1, sizeof(ty1));
5239 ast_type_to_string((ast_expression*)var, ty2, sizeof(ty2));
5241 compile_error(parser_ctx(parser), "incompatible types `%s` and `%s` for alias `%s`",
5248 * add alias to aliases table and to corrector
5249 * so corrections can apply for aliases as well.
5251 util_htset(parser->aliases, var->name, find);
5254 * add to corrector so corrections can work
5255 * even for aliases too.
5258 vec_last(parser->correct_variables),
5259 &vec_last(parser->correct_variables_score),
5263 /* generate aliases for vector components */
5267 util_asprintf(&buffer[0], "%s_x", var->desc);
5268 util_asprintf(&buffer[1], "%s_y", var->desc);
5269 util_asprintf(&buffer[2], "%s_z", var->desc);
5271 util_htset(parser->aliases, me[0]->name, parser_find_global(parser, buffer[0]));
5272 util_htset(parser->aliases, me[1]->name, parser_find_global(parser, buffer[1]));
5273 util_htset(parser->aliases, me[2]->name, parser_find_global(parser, buffer[2]));
5280 * add to corrector so corrections can work
5281 * even for aliases too.
5284 vec_last(parser->correct_variables),
5285 &vec_last(parser->correct_variables_score),
5289 vec_last(parser->correct_variables),
5290 &vec_last(parser->correct_variables_score),
5294 vec_last(parser->correct_variables),
5295 &vec_last(parser->correct_variables_score),
5303 /* a static adds itself to be generated like any other global
5304 * but is added to the local namespace instead
5306 char *defname = NULL;
5307 size_t prefix_len, ln;
5309 ln = strlen(parser->function->name);
5310 vec_append(defname, ln, parser->function->name);
5312 vec_append(defname, 2, "::");
5313 /* remember the length up to here */
5314 prefix_len = vec_size(defname);
5316 /* Add it to the local scope */
5317 util_htset(vec_last(parser->variables), var->name, (void*)var);
5321 vec_last(parser->correct_variables),
5322 &vec_last(parser->correct_variables_score),
5326 /* now rename the global */
5327 ln = strlen(var->name);
5328 vec_append(defname, ln, var->name);
5329 ast_value_set_name(var, defname);
5331 /* push it to the to-be-generated globals */
5332 vec_push(parser->globals, (ast_expression*)var);
5334 /* same game for the vector members */
5336 for (i = 0; i < 3; ++i) {
5337 util_htset(vec_last(parser->variables), me[i]->name, (void*)(me[i]));
5341 vec_last(parser->correct_variables),
5342 &vec_last(parser->correct_variables_score),
5346 vec_shrinkto(defname, prefix_len);
5347 ln = strlen(me[i]->name);
5348 vec_append(defname, ln, me[i]->name);
5349 ast_member_set_name(me[i], defname);
5351 vec_push(parser->globals, (ast_expression*)me[i]);
5356 vec_push(localblock->locals, var);
5357 parser_addlocal(parser, var->name, (ast_expression*)var);
5359 for (i = 0; i < 3; ++i) {
5360 parser_addlocal(parser, me[i]->name, (ast_expression*)me[i]);
5361 ast_block_collect(localblock, (ast_expression*)me[i]);
5367 me[0] = me[1] = me[2] = NULL;
5372 if (var->expression.vtype == TYPE_ARRAY) {
5373 if (var->expression.count != (size_t)-1) {
5374 if (!create_array_accessors(parser, var))
5378 else if (!localblock && !nofields &&
5379 var->expression.vtype == TYPE_FIELD &&
5380 var->expression.next->vtype == TYPE_ARRAY)
5383 ast_expression *telem;
5385 ast_value *array = (ast_value*)var->expression.next;
5387 if (!ast_istype(var->expression.next, ast_value)) {
5388 parseerror(parser, "internal error: field element type must be an ast_value");
5392 util_snprintf(name, sizeof(name), "%s##SETF", var->name);
5393 if (!parser_create_array_field_setter(parser, array, name))
5396 telem = ast_type_copy(ast_ctx(var), array->expression.next);
5397 tfield = ast_value_new(ast_ctx(var), "<.type>", TYPE_FIELD);
5398 tfield->expression.next = telem;
5399 util_snprintf(name, sizeof(name), "%s##GETFP", var->name);
5400 if (!parser_create_array_getter(parser, array, (ast_expression*)tfield, name)) {
5408 if (parser->tok == ';') {
5409 ast_delete(basetype);
5410 if (!parser_next(parser)) {
5411 parseerror(parser, "error after variable declaration");
5417 if (parser->tok == ',')
5421 if (!var || (!localblock && !nofields && basetype->expression.vtype == TYPE_FIELD)) {
5424 parseerror(parser, "missing comma or semicolon while parsing variables");
5428 if (localblock && OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
5429 if (parsewarning(parser, WARN_LOCAL_CONSTANTS,
5430 "initializing expression turns variable `%s` into a constant in this standard",
5437 if (parser->tok != '{' || var->expression.vtype != TYPE_FUNCTION) {
5438 if (parser->tok != '=') {
5439 if (!strcmp(parser_tokval(parser), "break")) {
5440 if (!parser_next(parser)) {
5441 parseerror(parser, "error parsing break definition");
5444 (void)!!parsewarning(parser, WARN_BREAKDEF, "break definition ignored (suggest removing it)");
5446 parseerror(parser, "missing semicolon or initializer, got: `%s`", parser_tokval(parser));
5451 if (!parser_next(parser)) {
5452 parseerror(parser, "error parsing initializer");
5456 else if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
5457 parseerror(parser, "expected '=' before function body in this standard");
5460 if (parser->tok == '#') {
5461 ast_function *func = NULL;
5462 ast_value *number = NULL;
5468 parseerror(parser, "cannot declare builtins within functions");
5471 if (var->expression.vtype != TYPE_FUNCTION) {
5472 parseerror(parser, "unexpected builtin number, '%s' is not a function", var->name);
5475 if (!parser_next(parser)) {
5476 parseerror(parser, "expected builtin number");
5480 if (OPTS_FLAG(EXPRESSIONS_FOR_BUILTINS)) {
5481 number = (ast_value*)parse_expression_leave(parser, true, false, false);
5483 parseerror(parser, "builtin number expected");
5486 if (!ast_istype(number, ast_value) || !number->hasvalue || number->cvq != CV_CONST)
5489 parseerror(parser, "builtin number must be a compile time constant");
5492 if (number->expression.vtype == TYPE_INTEGER)
5493 builtin_num = number->constval.vint;
5494 else if (number->expression.vtype == TYPE_FLOAT)
5495 builtin_num = number->constval.vfloat;
5498 parseerror(parser, "builtin number must be an integer constant");
5503 fractional = modff(builtin_num, &integral);
5504 if (builtin_num < 0 || fractional != 0) {
5505 parseerror(parser, "builtin number must be an integer greater than zero");
5509 /* we only want the integral part anyways */
5510 builtin_num = integral;
5511 } else if (parser->tok == TOKEN_INTCONST) {
5512 builtin_num = parser_token(parser)->constval.i;
5514 parseerror(parser, "builtin number must be a compile time constant");
5518 if (var->hasvalue) {
5519 (void)!parsewarning(parser, WARN_DOUBLE_DECLARATION,
5520 "builtin `%s` has already been defined\n"
5521 " -> previous declaration here: %s:%i",
5522 var->name, ast_ctx(var).file, (int)ast_ctx(var).line);
5526 func = ast_function_new(ast_ctx(var), var->name, var);
5528 parseerror(parser, "failed to allocate function for `%s`", var->name);
5531 vec_push(parser->functions, func);
5533 func->builtin = -builtin_num-1;
5536 if (OPTS_FLAG(EXPRESSIONS_FOR_BUILTINS)
5537 ? (parser->tok != ',' && parser->tok != ';')
5538 : (!parser_next(parser)))
5540 parseerror(parser, "expected comma or semicolon");
5542 ast_function_delete(func);
5543 var->constval.vfunc = NULL;
5547 else if (var->expression.vtype == TYPE_ARRAY && parser->tok == '{')
5550 /* Note that fteqcc and most others don't even *have*
5551 * local arrays, so this is not a high priority.
5553 parseerror(parser, "TODO: initializers for local arrays");
5557 var->hasvalue = true;
5558 if (!parse_array(parser, var))
5561 else if (var->expression.vtype == TYPE_FUNCTION && (parser->tok == '{' || parser->tok == '['))
5564 parseerror(parser, "cannot declare functions within functions");
5569 ast_ctx(proto) = parser_ctx(parser);
5571 if (!parse_function_body(parser, var))
5573 ast_delete(basetype);
5574 for (i = 0; i < vec_size(parser->gotos); ++i)
5575 parseerror(parser, "undefined label: `%s`", parser->gotos[i]->name);
5576 vec_free(parser->gotos);
5577 vec_free(parser->labels);
5580 ast_expression *cexp;
5583 cexp = parse_expression_leave(parser, true, false, false);
5588 cval = (ast_value*)cexp;
5589 if (cval != parser->nil &&
5590 (!ast_istype(cval, ast_value) || ((!cval->hasvalue || cval->cvq != CV_CONST) && !cval->isfield))
5593 parseerror(parser, "cannot initialize a global constant variable with a non-constant expression");
5597 if (!OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
5598 qualifier != CV_VAR)
5600 var->cvq = CV_CONST;
5602 if (cval == parser->nil)
5603 var->expression.flags |= AST_FLAG_INITIALIZED;
5606 var->hasvalue = true;
5607 if (cval->expression.vtype == TYPE_STRING)
5608 var->constval.vstring = parser_strdup(cval->constval.vstring);
5609 else if (cval->expression.vtype == TYPE_FIELD)
5610 var->constval.vfield = cval;
5612 memcpy(&var->constval, &cval->constval, sizeof(var->constval));
5618 shunt sy = { NULL, NULL, NULL, NULL };
5621 vec_push(sy.out, syexp(ast_ctx(var), (ast_expression*)var));
5622 vec_push(sy.out, syexp(ast_ctx(cexp), (ast_expression*)cexp));
5623 vec_push(sy.ops, syop(ast_ctx(var), parser->assign_op));
5624 if (!parser_sy_apply_operator(parser, &sy))
5627 if (vec_size(sy.out) != 1 && vec_size(sy.ops) != 0)
5628 parseerror(parser, "internal error: leaked operands");
5629 if (!ast_block_add_expr(localblock, (ast_expression*)sy.out[0].out))
5640 if (parser->tok == ',') {
5641 if (!parser_next(parser)) {
5642 parseerror(parser, "expected another variable");
5646 if (parser->tok != TOKEN_IDENT) {
5647 parseerror(parser, "expected another variable");
5650 var = ast_value_copy(basetype);
5652 ast_value_set_name(var, parser_tokval(parser));
5653 if (!parser_next(parser)) {
5654 parseerror(parser, "error parsing variable declaration");
5660 if (parser->tok != ';') {
5661 parseerror(parser, "missing semicolon after variables");
5665 if (!parser_next(parser)) {
5666 parseerror(parser, "parse error after variable declaration");
5670 ast_delete(basetype);
5674 if (cleanvar && var)
5676 ast_delete(basetype);
5680 ast_delete(basetype);
5681 if (cleanvar && var)
5683 if (me[0]) ast_member_delete(me[0]);
5684 if (me[1]) ast_member_delete(me[1]);
5685 if (me[2]) ast_member_delete(me[2]);
5689 static bool parser_global_statement(parser_t *parser)
5693 bool is_static = false;
5694 uint32_t qflags = 0;
5695 ast_value *istype = NULL;
5696 char *vstring = NULL;
5698 if (parser->tok == TOKEN_IDENT)
5699 istype = parser_find_typedef(parser, parser_tokval(parser), 0);
5701 if (istype || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
5703 return parse_variable(parser, NULL, false, CV_NONE, istype, false, false, 0, NULL);
5705 else if (parse_qualifiers(parser, false, &cvq, &noref, &is_static, &qflags, &vstring))
5707 if (cvq == CV_WRONG)
5709 return parse_variable(parser, NULL, true, cvq, NULL, noref, is_static, qflags, vstring);
5711 else if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "enum"))
5713 return parse_enum(parser);
5715 else if (parser->tok == TOKEN_KEYWORD)
5717 if (!strcmp(parser_tokval(parser), "typedef")) {
5718 if (!parser_next(parser)) {
5719 parseerror(parser, "expected type definition after 'typedef'");
5722 return parse_typedef(parser);
5724 parseerror(parser, "unrecognized keyword `%s`", parser_tokval(parser));
5727 else if (parser->tok == '#')
5729 return parse_pragma(parser);
5731 else if (parser->tok == '$')
5733 if (!parser_next(parser)) {
5734 parseerror(parser, "parse error");
5740 parseerror(parser, "unexpected token: `%s`", parser->lex->tok.value);
5746 static uint16_t progdefs_crc_sum(uint16_t old, const char *str)
5748 return util_crc16(old, str, strlen(str));
5751 static void progdefs_crc_file(const char *str)
5753 /* write to progdefs.h here */
5757 static uint16_t progdefs_crc_both(uint16_t old, const char *str)
5759 old = progdefs_crc_sum(old, str);
5760 progdefs_crc_file(str);
5764 static void generate_checksum(parser_t *parser, ir_builder *ir)
5766 uint16_t crc = 0xFFFF;
5770 crc = progdefs_crc_both(crc, "\n/* file generated by qcc, do not modify */\n\ntypedef struct\n{");
5771 crc = progdefs_crc_sum(crc, "\tint\tpad[28];\n");
5773 progdefs_crc_file("\tint\tpad;\n");
5774 progdefs_crc_file("\tint\tofs_return[3];\n");
5775 progdefs_crc_file("\tint\tofs_parm0[3];\n");
5776 progdefs_crc_file("\tint\tofs_parm1[3];\n");
5777 progdefs_crc_file("\tint\tofs_parm2[3];\n");
5778 progdefs_crc_file("\tint\tofs_parm3[3];\n");
5779 progdefs_crc_file("\tint\tofs_parm4[3];\n");
5780 progdefs_crc_file("\tint\tofs_parm5[3];\n");
5781 progdefs_crc_file("\tint\tofs_parm6[3];\n");
5782 progdefs_crc_file("\tint\tofs_parm7[3];\n");
5784 for (i = 0; i < parser->crc_globals; ++i) {
5785 if (!ast_istype(parser->globals[i], ast_value))
5787 value = (ast_value*)(parser->globals[i]);
5788 switch (value->expression.vtype) {
5789 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
5790 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
5791 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
5792 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
5794 crc = progdefs_crc_both(crc, "\tint\t");
5797 crc = progdefs_crc_both(crc, value->name);
5798 crc = progdefs_crc_both(crc, ";\n");
5800 crc = progdefs_crc_both(crc, "} globalvars_t;\n\ntypedef struct\n{\n");
5801 for (i = 0; i < parser->crc_fields; ++i) {
5802 if (!ast_istype(parser->fields[i], ast_value))
5804 value = (ast_value*)(parser->fields[i]);
5805 switch (value->expression.next->vtype) {
5806 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
5807 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
5808 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
5809 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
5811 crc = progdefs_crc_both(crc, "\tint\t");
5814 crc = progdefs_crc_both(crc, value->name);
5815 crc = progdefs_crc_both(crc, ";\n");
5817 crc = progdefs_crc_both(crc, "} entvars_t;\n\n");
5818 ir->code->crc = crc;
5821 parser_t *parser_create()
5824 lex_ctx_t empty_ctx;
5827 parser = (parser_t*)mem_a(sizeof(parser_t));
5831 memset(parser, 0, sizeof(*parser));
5833 for (i = 0; i < operator_count; ++i) {
5834 if (operators[i].id == opid1('=')) {
5835 parser->assign_op = operators+i;
5839 if (!parser->assign_op) {
5840 printf("internal error: initializing parser: failed to find assign operator\n");
5845 vec_push(parser->variables, parser->htfields = util_htnew(PARSER_HT_SIZE));
5846 vec_push(parser->variables, parser->htglobals = util_htnew(PARSER_HT_SIZE));
5847 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
5848 vec_push(parser->_blocktypedefs, 0);
5850 parser->aliases = util_htnew(PARSER_HT_SIZE);
5853 vec_push(parser->correct_variables, correct_trie_new());
5854 vec_push(parser->correct_variables_score, NULL);
5856 empty_ctx.file = "<internal>";
5858 empty_ctx.column = 0;
5859 parser->nil = ast_value_new(empty_ctx, "nil", TYPE_NIL);
5860 parser->nil->cvq = CV_CONST;
5861 if (OPTS_FLAG(UNTYPED_NIL))
5862 util_htset(parser->htglobals, "nil", (void*)parser->nil);
5864 parser->max_param_count = 1;
5866 parser->const_vec[0] = ast_value_new(empty_ctx, "<vector.x>", TYPE_NOEXPR);
5867 parser->const_vec[1] = ast_value_new(empty_ctx, "<vector.y>", TYPE_NOEXPR);
5868 parser->const_vec[2] = ast_value_new(empty_ctx, "<vector.z>", TYPE_NOEXPR);
5870 if (OPTS_OPTION_BOOL(OPTION_ADD_INFO)) {
5871 parser->reserved_version = ast_value_new(empty_ctx, "reserved:version", TYPE_STRING);
5872 parser->reserved_version->cvq = CV_CONST;
5873 parser->reserved_version->hasvalue = true;
5874 parser->reserved_version->expression.flags |= AST_FLAG_INCLUDE_DEF;
5875 parser->reserved_version->constval.vstring = util_strdup(GMQCC_FULL_VERSION_STRING);
5877 parser->reserved_version = NULL;
5880 parser->fold = fold_init(parser);
5884 static bool parser_compile(parser_t *parser)
5886 /* initial lexer/parser state */
5887 parser->lex->flags.noops = true;
5889 if (parser_next(parser))
5891 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
5893 if (!parser_global_statement(parser)) {
5894 if (parser->tok == TOKEN_EOF)
5895 parseerror(parser, "unexpected end of file");
5896 else if (compile_errors)
5897 parseerror(parser, "there have been errors, bailing out");
5898 lex_close(parser->lex);
5904 parseerror(parser, "parse error");
5905 lex_close(parser->lex);
5910 lex_close(parser->lex);
5913 return !compile_errors;
5916 bool parser_compile_file(parser_t *parser, const char *filename)
5918 parser->lex = lex_open(filename);
5920 con_err("failed to open file \"%s\"\n", filename);
5923 return parser_compile(parser);
5926 bool parser_compile_string(parser_t *parser, const char *name, const char *str, size_t len)
5928 parser->lex = lex_open_string(str, len, name);
5930 con_err("failed to create lexer for string \"%s\"\n", name);
5933 return parser_compile(parser);
5936 static void parser_remove_ast(parser_t *parser)
5939 if (parser->ast_cleaned)
5941 parser->ast_cleaned = true;
5942 for (i = 0; i < vec_size(parser->accessors); ++i) {
5943 ast_delete(parser->accessors[i]->constval.vfunc);
5944 parser->accessors[i]->constval.vfunc = NULL;
5945 ast_delete(parser->accessors[i]);
5947 for (i = 0; i < vec_size(parser->functions); ++i) {
5948 ast_delete(parser->functions[i]);
5950 for (i = 0; i < vec_size(parser->fields); ++i) {
5951 ast_delete(parser->fields[i]);
5953 for (i = 0; i < vec_size(parser->globals); ++i) {
5954 ast_delete(parser->globals[i]);
5956 vec_free(parser->accessors);
5957 vec_free(parser->functions);
5958 vec_free(parser->globals);
5959 vec_free(parser->fields);
5961 for (i = 0; i < vec_size(parser->variables); ++i)
5962 util_htdel(parser->variables[i]);
5963 vec_free(parser->variables);
5964 vec_free(parser->_blocklocals);
5965 vec_free(parser->_locals);
5968 for (i = 0; i < vec_size(parser->correct_variables); ++i) {
5969 correct_del(parser->correct_variables[i], parser->correct_variables_score[i]);
5971 vec_free(parser->correct_variables);
5972 vec_free(parser->correct_variables_score);
5974 for (i = 0; i < vec_size(parser->_typedefs); ++i)
5975 ast_delete(parser->_typedefs[i]);
5976 vec_free(parser->_typedefs);
5977 for (i = 0; i < vec_size(parser->typedefs); ++i)
5978 util_htdel(parser->typedefs[i]);
5979 vec_free(parser->typedefs);
5980 vec_free(parser->_blocktypedefs);
5982 vec_free(parser->_block_ctx);
5984 vec_free(parser->labels);
5985 vec_free(parser->gotos);
5986 vec_free(parser->breaks);
5987 vec_free(parser->continues);
5989 ast_value_delete(parser->nil);
5991 ast_value_delete(parser->const_vec[0]);
5992 ast_value_delete(parser->const_vec[1]);
5993 ast_value_delete(parser->const_vec[2]);
5995 if (parser->reserved_version)
5996 ast_value_delete(parser->reserved_version);
5998 util_htdel(parser->aliases);
5999 intrin_intrinsics_destroy(parser);
6000 fold_cleanup(parser->fold);
6003 void parser_cleanup(parser_t *parser)
6005 parser_remove_ast(parser);
6009 bool parser_finish(parser_t *parser, const char *output)
6015 if (compile_errors) {
6016 con_out("*** there were compile errors\n");
6020 ir = ir_builder_new("gmqcc_out");
6022 con_out("failed to allocate builder\n");
6026 for (i = 0; i < vec_size(parser->fields); ++i) {
6029 if (!ast_istype(parser->fields[i], ast_value))
6031 field = (ast_value*)parser->fields[i];
6032 hasvalue = field->hasvalue;
6033 field->hasvalue = false;
6034 if (!ast_global_codegen((ast_value*)field, ir, true)) {
6035 con_out("failed to generate field %s\n", field->name);
6036 ir_builder_delete(ir);
6041 ast_expression *subtype;
6042 field->hasvalue = true;
6043 subtype = field->expression.next;
6044 ifld = ir_builder_create_field(ir, field->name, subtype->vtype);
6045 if (subtype->vtype == TYPE_FIELD)
6046 ifld->fieldtype = subtype->next->vtype;
6047 else if (subtype->vtype == TYPE_FUNCTION)
6048 ifld->outtype = subtype->next->vtype;
6049 (void)!ir_value_set_field(field->ir_v, ifld);
6052 for (i = 0; i < vec_size(parser->globals); ++i) {
6054 if (!ast_istype(parser->globals[i], ast_value))
6056 asvalue = (ast_value*)(parser->globals[i]);
6057 if (!asvalue->uses && !asvalue->hasvalue && asvalue->expression.vtype != TYPE_FUNCTION) {
6058 retval = retval && !compile_warning(ast_ctx(asvalue), WARN_UNUSED_VARIABLE,
6059 "unused global: `%s`", asvalue->name);
6061 if (!ast_global_codegen(asvalue, ir, false)) {
6062 con_out("failed to generate global %s\n", asvalue->name);
6063 ir_builder_delete(ir);
6067 /* Build function vararg accessor ast tree now before generating
6068 * immediates, because the accessors may add new immediates
6070 for (i = 0; i < vec_size(parser->functions); ++i) {
6071 ast_function *f = parser->functions[i];
6073 if (parser->max_param_count > vec_size(f->vtype->expression.params)) {
6074 f->varargs->expression.count = parser->max_param_count - vec_size(f->vtype->expression.params);
6075 if (!parser_create_array_setter_impl(parser, f->varargs)) {
6076 con_out("failed to generate vararg setter for %s\n", f->name);
6077 ir_builder_delete(ir);
6080 if (!parser_create_array_getter_impl(parser, f->varargs)) {
6081 con_out("failed to generate vararg getter for %s\n", f->name);
6082 ir_builder_delete(ir);
6086 ast_delete(f->varargs);
6091 /* Now we can generate immediates */
6092 if (!fold_generate(parser->fold, ir))
6095 for (i = 0; i < vec_size(parser->globals); ++i) {
6097 if (!ast_istype(parser->globals[i], ast_value))
6099 asvalue = (ast_value*)(parser->globals[i]);
6100 if (!(asvalue->expression.flags & AST_FLAG_INITIALIZED))
6102 if (asvalue->cvq == CV_CONST && !asvalue->hasvalue)
6103 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_CONSTANT,
6104 "uninitialized constant: `%s`",
6106 else if ((asvalue->cvq == CV_NONE || asvalue->cvq == CV_CONST) && !asvalue->hasvalue)
6107 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_GLOBAL,
6108 "uninitialized global: `%s`",
6111 if (!ast_generate_accessors(asvalue, ir)) {
6112 ir_builder_delete(ir);
6116 for (i = 0; i < vec_size(parser->fields); ++i) {
6118 asvalue = (ast_value*)(parser->fields[i]->next);
6120 if (!ast_istype((ast_expression*)asvalue, ast_value))
6122 if (asvalue->expression.vtype != TYPE_ARRAY)
6124 if (!ast_generate_accessors(asvalue, ir)) {
6125 ir_builder_delete(ir);
6129 if (parser->reserved_version &&
6130 !ast_global_codegen(parser->reserved_version, ir, false))
6132 con_out("failed to generate reserved::version");
6133 ir_builder_delete(ir);
6136 for (i = 0; i < vec_size(parser->functions); ++i) {
6137 ast_function *f = parser->functions[i];
6138 if (!ast_function_codegen(f, ir)) {
6139 con_out("failed to generate function %s\n", f->name);
6140 ir_builder_delete(ir);
6145 generate_checksum(parser, ir);
6147 if (OPTS_OPTION_BOOL(OPTION_DUMP))
6148 ir_builder_dump(ir, con_out);
6149 for (i = 0; i < vec_size(parser->functions); ++i) {
6150 if (!ir_function_finalize(parser->functions[i]->ir_func)) {
6151 con_out("failed to finalize function %s\n", parser->functions[i]->name);
6152 ir_builder_delete(ir);
6156 parser_remove_ast(parser);
6158 if (compile_Werrors) {
6159 con_out("*** there were warnings treated as errors\n");
6160 compile_show_werrors();
6165 if (OPTS_OPTION_BOOL(OPTION_DUMPFIN))
6166 ir_builder_dump(ir, con_out);
6168 if (!ir_builder_generate(ir, output)) {
6169 con_out("*** failed to generate output file\n");
6170 ir_builder_delete(ir);
6174 ir_builder_delete(ir);