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 void parser_enterblock(parser_t *parser);
33 static bool parser_leaveblock(parser_t *parser);
34 static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e);
35 static void parser_addglobal(parser_t *parser, const char *name, ast_expression *e);
36 static bool parse_typedef(parser_t *parser);
37 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);
38 static ast_block* parse_block(parser_t *parser);
39 static bool parse_block_into(parser_t *parser, ast_block *block);
40 static bool parse_statement_or_block(parser_t *parser, ast_expression **out);
41 static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases);
42 static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels);
43 static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels);
44 static ast_value* parser_create_array_setter_proto(parser_t *parser, ast_value *array, const char *funcname);
45 static ast_value* parser_create_array_getter_proto(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname);
46 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
48 static void parseerror(parser_t *parser, const char *fmt, ...)
52 vcompile_error(parser->lex->tok.ctx, fmt, ap);
56 /* returns true if it counts as an error */
57 static bool GMQCC_WARN parsewarning(parser_t *parser, int warntype, const char *fmt, ...)
62 r = vcompile_warning(parser->lex->tok.ctx, warntype, fmt, ap);
67 /**********************************************************************
71 static bool parser_next(parser_t *parser)
73 /* lex_do kills the previous token */
74 parser->tok = lex_do(parser->lex);
75 if (parser->tok == TOKEN_EOF)
77 if (parser->tok >= TOKEN_ERROR) {
78 parseerror(parser, "lex error");
84 #define parser_tokval(p) ((p)->lex->tok.value)
85 #define parser_token(p) (&((p)->lex->tok))
87 char *parser_strdup(const char *str)
90 /* actually dup empty strings */
91 char *out = (char*)mem_a(1);
95 return util_strdup(str);
98 static ast_expression* parser_find_field(parser_t *parser, const char *name)
100 return ( ast_expression*)util_htget(parser->htfields, name);
103 static ast_expression* parser_find_label(parser_t *parser, const char *name)
106 for(i = 0; i < vec_size(parser->labels); i++)
107 if (!strcmp(parser->labels[i]->name, name))
108 return (ast_expression*)parser->labels[i];
112 static ast_expression* parser_find_global(parser_t *parser, const char *name)
114 ast_expression *var = (ast_expression*)util_htget(parser->aliases, parser_tokval(parser));
117 return (ast_expression*)util_htget(parser->htglobals, name);
120 static ast_expression* parser_find_param(parser_t *parser, const char *name)
124 if (!parser->function)
126 fun = parser->function->vtype;
127 for (i = 0; i < vec_size(fun->expression.params); ++i) {
128 if (!strcmp(fun->expression.params[i]->name, name))
129 return (ast_expression*)(fun->expression.params[i]);
134 static ast_expression* parser_find_local(parser_t *parser, const char *name, size_t upto, bool *isparam)
139 hash = util_hthash(parser->htglobals, name);
142 for (i = vec_size(parser->variables); i > upto;) {
144 if ( (e = (ast_expression*)util_htgeth(parser->variables[i], name, hash)) )
148 return parser_find_param(parser, name);
151 static ast_expression* parser_find_var(parser_t *parser, const char *name)
155 v = parser_find_local(parser, name, 0, &dummy);
156 if (!v) v = parser_find_global(parser, name);
160 static ast_value* parser_find_typedef(parser_t *parser, const char *name, size_t upto)
164 hash = util_hthash(parser->typedefs[0], name);
166 for (i = vec_size(parser->typedefs); i > upto;) {
168 if ( (e = (ast_value*)util_htgeth(parser->typedefs[i], name, hash)) )
174 /* include intrinsics */
179 size_t etype; /* 0 = expression, others are operators */
183 ast_block *block; /* for commas and function calls */
202 static sy_elem syexp(lex_ctx_t ctx, ast_expression *v) {
213 static sy_elem syblock(lex_ctx_t ctx, ast_block *v) {
217 e.out = (ast_expression*)v;
224 static sy_elem syop(lex_ctx_t ctx, const oper_info *op) {
226 e.etype = 1 + (op - operators);
235 static sy_elem syparen(lex_ctx_t ctx, size_t off) {
246 /* With regular precedence rules, ent.foo[n] is the same as (ent.foo)[n],
247 * so we need to rotate it to become ent.(foo[n]).
249 static bool rotate_entfield_array_index_nodes(ast_expression **out)
251 ast_array_index *index, *oldindex;
252 ast_entfield *entfield;
256 ast_expression *entity;
258 lex_ctx_t ctx = ast_ctx(*out);
260 if (!ast_istype(*out, ast_array_index))
262 index = (ast_array_index*)*out;
264 if (!ast_istype(index->array, ast_entfield))
266 entfield = (ast_entfield*)index->array;
268 if (!ast_istype(entfield->field, ast_value))
270 field = (ast_value*)entfield->field;
273 entity = entfield->entity;
277 index = ast_array_index_new(ctx, (ast_expression*)field, sub);
278 entfield = ast_entfield_new(ctx, entity, (ast_expression*)index);
279 *out = (ast_expression*)entfield;
281 oldindex->array = NULL;
282 oldindex->index = NULL;
283 ast_delete(oldindex);
288 static bool parser_sy_apply_operator(parser_t *parser, shunt *sy)
292 ast_expression *out = NULL;
293 ast_expression *exprs[3];
294 ast_block *blocks[3];
295 ast_value *asvalue[3];
296 ast_binstore *asbinstore;
297 size_t i, assignop, addop, subop;
298 qcint_t generated_op = 0;
303 if (!vec_size(sy->ops)) {
304 parseerror(parser, "internal error: missing operator");
308 if (vec_last(sy->ops).isparen) {
309 parseerror(parser, "unmatched parenthesis");
313 op = &operators[vec_last(sy->ops).etype - 1];
314 ctx = vec_last(sy->ops).ctx;
316 if (vec_size(sy->out) < op->operands) {
317 compile_error(ctx, "internal error: not enough operands: %i (operator %s (%i))", vec_size(sy->out),
318 op->op, (int)op->id);
322 vec_shrinkby(sy->ops, 1);
324 /* op(:?) has no input and no output */
328 vec_shrinkby(sy->out, op->operands);
329 for (i = 0; i < op->operands; ++i) {
330 exprs[i] = sy->out[vec_size(sy->out)+i].out;
331 blocks[i] = sy->out[vec_size(sy->out)+i].block;
332 asvalue[i] = (ast_value*)exprs[i];
334 if (exprs[i]->vtype == TYPE_NOEXPR &&
335 !(i != 0 && op->id == opid2('?',':')) &&
336 !(i == 1 && op->id == opid1('.')))
338 if (ast_istype(exprs[i], ast_label))
339 compile_error(ast_ctx(exprs[i]), "expected expression, got an unknown identifier");
341 compile_error(ast_ctx(exprs[i]), "not an expression");
342 (void)!compile_warning(ast_ctx(exprs[i]), WARN_DEBUG, "expression %u\n", (unsigned int)i);
346 if (blocks[0] && !vec_size(blocks[0]->exprs) && op->id != opid1(',')) {
347 compile_error(ctx, "internal error: operator cannot be applied on empty blocks");
351 #define NotSameType(T) \
352 (exprs[0]->vtype != exprs[1]->vtype || \
353 exprs[0]->vtype != T)
357 compile_error(ctx, "internal error: unhandled operator: %s (%i)", op->op, (int)op->id);
361 if (exprs[0]->vtype == TYPE_VECTOR &&
362 exprs[1]->vtype == TYPE_NOEXPR)
364 if (exprs[1] == (ast_expression*)parser->const_vec[0])
365 out = (ast_expression*)ast_member_new(ctx, exprs[0], 0, NULL);
366 else if (exprs[1] == (ast_expression*)parser->const_vec[1])
367 out = (ast_expression*)ast_member_new(ctx, exprs[0], 1, NULL);
368 else if (exprs[1] == (ast_expression*)parser->const_vec[2])
369 out = (ast_expression*)ast_member_new(ctx, exprs[0], 2, NULL);
371 compile_error(ctx, "access to invalid vector component");
375 else if (exprs[0]->vtype == TYPE_ENTITY) {
376 if (exprs[1]->vtype != TYPE_FIELD) {
377 compile_error(ast_ctx(exprs[1]), "type error: right hand of member-operand should be an entity-field");
380 out = (ast_expression*)ast_entfield_new(ctx, exprs[0], exprs[1]);
382 else if (exprs[0]->vtype == TYPE_VECTOR) {
383 compile_error(ast_ctx(exprs[1]), "vectors cannot be accessed this way");
387 compile_error(ast_ctx(exprs[1]), "type error: member-of operator on something that is not an entity or vector");
393 if (exprs[0]->vtype != TYPE_ARRAY &&
394 !(exprs[0]->vtype == TYPE_FIELD &&
395 exprs[0]->next->vtype == TYPE_ARRAY))
397 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
398 compile_error(ast_ctx(exprs[0]), "cannot index value of type %s", ty1);
401 if (exprs[1]->vtype != TYPE_FLOAT) {
402 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
403 compile_error(ast_ctx(exprs[1]), "index must be of type float, not %s", ty1);
406 out = (ast_expression*)ast_array_index_new(ctx, exprs[0], exprs[1]);
407 if (rotate_entfield_array_index_nodes(&out))
410 /* This is not broken in fteqcc anymore */
411 if (OPTS_OPTION_U32(OPTION_STANDARD) != COMPILER_GMQCC) {
412 /* this error doesn't need to make us bail out */
413 (void)!parsewarning(parser, WARN_EXTENSIONS,
414 "accessing array-field members of an entity without parenthesis\n"
415 " -> this is an extension from -std=gmqcc");
422 if (vec_size(sy->paren) && vec_last(sy->paren) == PAREN_FUNC) {
423 vec_push(sy->out, syexp(ctx, exprs[0]));
424 vec_push(sy->out, syexp(ctx, exprs[1]));
425 vec_last(sy->argc)++;
429 if (!ast_block_add_expr(blocks[0], exprs[1]))
432 blocks[0] = ast_block_new(ctx);
433 if (!ast_block_add_expr(blocks[0], exprs[0]) ||
434 !ast_block_add_expr(blocks[0], exprs[1]))
439 ast_block_set_type(blocks[0], exprs[1]);
441 vec_push(sy->out, syblock(ctx, blocks[0]));
448 if (!(out = fold_op(parser->fold, op, exprs))) {
449 switch (exprs[0]->vtype) {
451 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F,
452 (ast_expression*)parser->fold->imm_float[0],
456 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V,
457 (ast_expression*)parser->fold->imm_vector[0],
461 compile_error(ctx, "invalid types used in expression: cannot negate type %s",
462 type_name[exprs[0]->vtype]);
469 if (!(out = fold_op(parser->fold, op, exprs))) {
470 switch (exprs[0]->vtype) {
472 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
475 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[0]);
478 if (OPTS_FLAG(TRUE_EMPTY_STRINGS))
479 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
481 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[0]);
483 /* we don't constant-fold NOT for these types */
485 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_ENT, exprs[0]);
488 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_FNC, exprs[0]);
491 compile_error(ctx, "invalid types used in expression: cannot logically negate type %s",
492 type_name[exprs[0]->vtype]);
499 if (exprs[0]->vtype != exprs[1]->vtype ||
500 (exprs[0]->vtype != TYPE_VECTOR && exprs[0]->vtype != TYPE_FLOAT) )
502 compile_error(ctx, "invalid types used in expression: cannot add type %s and %s",
503 type_name[exprs[0]->vtype],
504 type_name[exprs[1]->vtype]);
507 if (!(out = fold_op(parser->fold, op, exprs))) {
508 switch (exprs[0]->vtype) {
510 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F, exprs[0], exprs[1]);
513 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_V, exprs[0], exprs[1]);
516 compile_error(ctx, "invalid types used in expression: cannot add type %s and %s",
517 type_name[exprs[0]->vtype],
518 type_name[exprs[1]->vtype]);
524 if (exprs[0]->vtype != exprs[1]->vtype ||
525 (exprs[0]->vtype != TYPE_VECTOR && exprs[0]->vtype != TYPE_FLOAT))
527 compile_error(ctx, "invalid types used in expression: cannot subtract type %s from %s",
528 type_name[exprs[1]->vtype],
529 type_name[exprs[0]->vtype]);
532 if (!(out = fold_op(parser->fold, op, exprs))) {
533 switch (exprs[0]->vtype) {
535 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F, exprs[0], exprs[1]);
538 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V, exprs[0], exprs[1]);
541 compile_error(ctx, "invalid types used in expression: cannot subtract type %s from %s",
542 type_name[exprs[1]->vtype],
543 type_name[exprs[0]->vtype]);
549 if (exprs[0]->vtype != exprs[1]->vtype &&
550 !(exprs[0]->vtype == TYPE_VECTOR &&
551 exprs[1]->vtype == TYPE_FLOAT) &&
552 !(exprs[1]->vtype == TYPE_VECTOR &&
553 exprs[0]->vtype == TYPE_FLOAT)
556 compile_error(ctx, "invalid types used in expression: cannot multiply types %s and %s",
557 type_name[exprs[1]->vtype],
558 type_name[exprs[0]->vtype]);
561 if (!(out = fold_op(parser->fold, op, exprs))) {
562 switch (exprs[0]->vtype) {
564 if (exprs[1]->vtype == TYPE_VECTOR)
565 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_FV, exprs[0], exprs[1]);
567 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, exprs[0], exprs[1]);
570 if (exprs[1]->vtype == TYPE_FLOAT)
571 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_VF, exprs[0], exprs[1]);
573 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
576 compile_error(ctx, "invalid types used in expression: cannot multiply types %s and %s",
577 type_name[exprs[1]->vtype],
578 type_name[exprs[0]->vtype]);
585 if (exprs[1]->vtype != TYPE_FLOAT) {
586 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
587 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
588 compile_error(ctx, "invalid types used in expression: cannot divide types %s and %s", ty1, ty2);
591 if (!(out = fold_op(parser->fold, op, exprs))) {
592 if (exprs[0]->vtype == TYPE_FLOAT)
593 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F, exprs[0], exprs[1]);
595 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
596 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
597 compile_error(ctx, "invalid types used in expression: cannot divide types %s and %s", ty1, ty2);
604 if (NotSameType(TYPE_FLOAT)) {
605 compile_error(ctx, "invalid types used in expression: cannot perform modulo operation between types %s and %s",
606 type_name[exprs[0]->vtype],
607 type_name[exprs[1]->vtype]);
609 } else if (!(out = fold_op(parser->fold, op, exprs))) {
610 /* generate a call to __builtin_mod */
611 ast_expression *mod = intrin_func(parser, "mod");
612 ast_call *call = NULL;
613 if (!mod) return false; /* can return null for missing floor */
615 call = ast_call_new(parser_ctx(parser), mod);
616 vec_push(call->params, exprs[0]);
617 vec_push(call->params, exprs[1]);
619 out = (ast_expression*)call;
624 compile_error(ctx, "%= is unimplemented");
629 if (NotSameType(TYPE_FLOAT)) {
630 compile_error(ctx, "invalid types used in expression: cannot perform bit operations between types %s and %s",
631 type_name[exprs[0]->vtype],
632 type_name[exprs[1]->vtype]);
635 if (!(out = fold_op(parser->fold, op, exprs)))
636 out = (ast_expression*)ast_binary_new(ctx,
637 (op->id == opid1('|') ? INSTR_BITOR : INSTR_BITAND),
642 * Okay lets designate what the hell is an acceptable use
643 * of the ^ operator. In many vector processing units, XOR
644 * is allowed to be used on vectors, but only if the first
645 * operand is a vector, the second operand can be a float
646 * or vector. It's never legal for the first operand to be
647 * a float, and then the following operand to be a vector.
648 * Further more, the only time it is legal to do XOR otherwise
649 * is when both operand are floats. This nicely crafted if
650 * statement catches them all.
652 * In the event that the first operand is a vector, two
653 * possible situations can arise, thus, each element of
654 * vector A (operand A) is exclusive-ORed with the corresponding
655 * element of vector B (operand B), If B is scalar, the
656 * scalar value is first replicated for each element.
658 * The QCVM itself lacks a BITXOR instruction. Thus emulating
659 * the mathematics of it is required. The following equation
660 * is used: (LHS | RHS) & ~(LHS & RHS). However, due to the
661 * QCVM also lacking a BITNEG instruction, we need to emulate
662 * ~FOO with -1 - FOO, the whole process becoming this nicely
663 * crafted expression: (LHS | RHS) & (-1 - (LHS & RHS)).
665 * When A is not scalar, this process is repeated for all
666 * components of vector A with the value in operand B,
667 * only if operand B is scalar. When A is not scalar, and B
668 * is also not scalar, this process is repeated for all
669 * components of the vector A with the components of vector B.
670 * Finally when A is scalar and B is scalar, this process is
671 * simply used once for A and B being LHS and RHS respectfully.
673 * Yes the semantics are a bit strange (no pun intended).
674 * But then again BITXOR is strange itself, consdering it's
675 * commutative, assocative, and elements of the BITXOR operation
676 * are their own inverse.
678 if ( !(exprs[0]->vtype == TYPE_FLOAT && exprs[1]->vtype == TYPE_FLOAT) &&
679 !(exprs[0]->vtype == TYPE_VECTOR && exprs[1]->vtype == TYPE_FLOAT) &&
680 !(exprs[0]->vtype == TYPE_VECTOR && exprs[1]->vtype == TYPE_VECTOR))
682 compile_error(ctx, "invalid types used in expression: cannot perform bit operations between types %s and %s",
683 type_name[exprs[0]->vtype],
684 type_name[exprs[1]->vtype]);
688 if (!(out = fold_op(parser->fold, op, exprs))) {
690 * IF the first expression is float, the following will be too
691 * since scalar ^ vector is not allowed.
693 if (exprs[0]->vtype == TYPE_FLOAT) {
694 ast_binary *expr = ast_binary_new(
697 (ast_expression*)parser->fold->imm_float[2],
698 (ast_expression*)ast_binary_new(
705 expr->refs = AST_REF_NONE;
707 out = (ast_expression*)
711 (ast_expression*)ast_binary_new(
717 (ast_expression*)expr
721 * The first is a vector: vector is allowed to xor with vector and
722 * with scalar, branch here for the second operand.
724 if (exprs[1]->vtype == TYPE_VECTOR) {
726 * Xor all the values of the vector components against the
727 * vectors components in question.
729 compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-xor for vector against vector");
732 compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-xor for vector against float");
741 case opid3('<','<','='):
742 case opid3('>','>','='):
743 if(!(out = fold_op(parser->fold, op, exprs))) {
744 compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-shifts");
749 generated_op += 1; /* INSTR_OR */
751 generated_op += INSTR_AND;
752 if (!(out = fold_op(parser->fold, op, exprs))) {
753 if (OPTS_FLAG(PERL_LOGIC) && !ast_compare_type(exprs[0], exprs[1])) {
754 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
755 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
756 compile_error(ctx, "invalid types for logical operation with -fperl-logic: %s and %s", ty1, ty2);
759 for (i = 0; i < 2; ++i) {
760 if (OPTS_FLAG(CORRECT_LOGIC) && exprs[i]->vtype == TYPE_VECTOR) {
761 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[i]);
763 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
765 exprs[i] = out; out = NULL;
766 if (OPTS_FLAG(PERL_LOGIC)) {
767 /* here we want to keep the right expressions' type */
771 else if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && exprs[i]->vtype == TYPE_STRING) {
772 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[i]);
774 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
776 exprs[i] = out; out = NULL;
777 if (OPTS_FLAG(PERL_LOGIC)) {
778 /* here we want to keep the right expressions' type */
783 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
788 if (vec_last(sy->paren) != PAREN_TERNARY2) {
789 compile_error(ctx, "mismatched parenthesis/ternary");
793 if (!ast_compare_type(exprs[1], exprs[2])) {
794 ast_type_to_string(exprs[1], ty1, sizeof(ty1));
795 ast_type_to_string(exprs[2], ty2, sizeof(ty2));
796 compile_error(ctx, "operands of ternary expression must have the same type, got %s and %s", ty1, ty2);
799 if (!(out = fold_op(parser->fold, op, exprs)))
800 out = (ast_expression*)ast_ternary_new(ctx, exprs[0], exprs[1], exprs[2]);
803 case opid2('*', '*'):
804 if (NotSameType(TYPE_FLOAT)) {
805 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
806 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
807 compile_error(ctx, "invalid types used in exponentiation: %s and %s",
812 if (!(out = fold_op(parser->fold, op, exprs))) {
813 ast_call *gencall = ast_call_new(parser_ctx(parser), intrin_func(parser, "pow"));
814 vec_push(gencall->params, exprs[0]);
815 vec_push(gencall->params, exprs[1]);
816 out = (ast_expression*)gencall;
820 case opid3('<','=','>'): /* -1, 0, or 1 */
821 if (NotSameType(TYPE_FLOAT)) {
822 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
823 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
824 compile_error(ctx, "invalid types used in comparision: %s and %s",
830 if (!(out = fold_op(parser->fold, op, exprs))) {
831 ast_binary *eq = ast_binary_new(ctx, INSTR_EQ_F, exprs[0], exprs[1]);
833 eq->refs = AST_REF_NONE;
836 out = (ast_expression*)ast_ternary_new(ctx,
837 (ast_expression*)ast_binary_new(ctx, INSTR_LT, exprs[0], exprs[1]),
839 (ast_expression*)parser->fold->imm_float[2],
842 (ast_expression*)ast_ternary_new(ctx, (ast_expression*)eq,
844 (ast_expression*)parser->fold->imm_float[0],
847 (ast_expression*)parser->fold->imm_float[1]
857 generated_op += 1; /* INSTR_GT */
859 generated_op += 1; /* INSTR_LT */
860 case opid2('>', '='):
861 generated_op += 1; /* INSTR_GE */
862 case opid2('<', '='):
863 generated_op += INSTR_LE;
864 if (NotSameType(TYPE_FLOAT)) {
865 compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
866 type_name[exprs[0]->vtype],
867 type_name[exprs[1]->vtype]);
870 if (!(out = fold_op(parser->fold, op, exprs)))
871 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
873 case opid2('!', '='):
874 if (exprs[0]->vtype != exprs[1]->vtype) {
875 compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
876 type_name[exprs[0]->vtype],
877 type_name[exprs[1]->vtype]);
880 if (!(out = fold_op(parser->fold, op, exprs)))
881 out = (ast_expression*)ast_binary_new(ctx, type_ne_instr[exprs[0]->vtype], exprs[0], exprs[1]);
883 case opid2('=', '='):
884 if (exprs[0]->vtype != exprs[1]->vtype) {
885 compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
886 type_name[exprs[0]->vtype],
887 type_name[exprs[1]->vtype]);
890 if (!(out = fold_op(parser->fold, op, exprs)))
891 out = (ast_expression*)ast_binary_new(ctx, type_eq_instr[exprs[0]->vtype], exprs[0], exprs[1]);
895 if (ast_istype(exprs[0], ast_entfield)) {
896 ast_expression *field = ((ast_entfield*)exprs[0])->field;
897 if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) &&
898 exprs[0]->vtype == TYPE_FIELD &&
899 exprs[0]->next->vtype == TYPE_VECTOR)
901 assignop = type_storep_instr[TYPE_VECTOR];
904 assignop = type_storep_instr[exprs[0]->vtype];
905 if (assignop == VINSTR_END || !ast_compare_type(field->next, exprs[1]))
907 ast_type_to_string(field->next, ty1, sizeof(ty1));
908 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
909 if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
910 field->next->vtype == TYPE_FUNCTION &&
911 exprs[1]->vtype == TYPE_FUNCTION)
913 (void)!compile_warning(ctx, WARN_ASSIGN_FUNCTION_TYPES,
914 "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
917 compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
922 if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) &&
923 exprs[0]->vtype == TYPE_FIELD &&
924 exprs[0]->next->vtype == TYPE_VECTOR)
926 assignop = type_store_instr[TYPE_VECTOR];
929 assignop = type_store_instr[exprs[0]->vtype];
932 if (assignop == VINSTR_END) {
933 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
934 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
935 compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
937 else if (!ast_compare_type(exprs[0], exprs[1]))
939 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
940 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
941 if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
942 exprs[0]->vtype == TYPE_FUNCTION &&
943 exprs[1]->vtype == TYPE_FUNCTION)
945 (void)!compile_warning(ctx, WARN_ASSIGN_FUNCTION_TYPES,
946 "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
949 compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
952 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
953 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
955 out = (ast_expression*)ast_store_new(ctx, assignop, exprs[0], exprs[1]);
957 case opid3('+','+','P'):
958 case opid3('-','-','P'):
960 if (exprs[0]->vtype != TYPE_FLOAT) {
961 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
962 compile_error(ast_ctx(exprs[0]), "invalid type for prefix increment: %s", ty1);
965 if (op->id == opid3('+','+','P'))
969 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
970 compile_error(ast_ctx(exprs[0]), "assignment to constant `%s`", asvalue[0]->name);
972 if (ast_istype(exprs[0], ast_entfield)) {
973 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
975 (ast_expression*)parser->fold->imm_float[1]);
977 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
979 (ast_expression*)parser->fold->imm_float[1]);
982 case opid3('S','+','+'):
983 case opid3('S','-','-'):
985 if (exprs[0]->vtype != TYPE_FLOAT) {
986 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
987 compile_error(ast_ctx(exprs[0]), "invalid type for suffix increment: %s", ty1);
990 if (op->id == opid3('S','+','+')) {
997 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
998 compile_error(ast_ctx(exprs[0]), "assignment to constant `%s`", asvalue[0]->name);
1000 if (ast_istype(exprs[0], ast_entfield)) {
1001 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
1003 (ast_expression*)parser->fold->imm_float[1]);
1005 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
1007 (ast_expression*)parser->fold->imm_float[1]);
1011 out = (ast_expression*)ast_binary_new(ctx, subop,
1013 (ast_expression*)parser->fold->imm_float[1]);
1015 case opid2('+','='):
1016 case opid2('-','='):
1017 if (exprs[0]->vtype != exprs[1]->vtype ||
1018 (exprs[0]->vtype != TYPE_VECTOR && exprs[0]->vtype != TYPE_FLOAT) )
1020 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1021 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1022 compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
1026 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1027 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1029 if (ast_istype(exprs[0], ast_entfield))
1030 assignop = type_storep_instr[exprs[0]->vtype];
1032 assignop = type_store_instr[exprs[0]->vtype];
1033 switch (exprs[0]->vtype) {
1035 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1036 (op->id == opid2('+','=') ? INSTR_ADD_F : INSTR_SUB_F),
1037 exprs[0], exprs[1]);
1040 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1041 (op->id == opid2('+','=') ? INSTR_ADD_V : INSTR_SUB_V),
1042 exprs[0], exprs[1]);
1045 compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
1046 type_name[exprs[0]->vtype],
1047 type_name[exprs[1]->vtype]);
1051 case opid2('*','='):
1052 case opid2('/','='):
1053 if (exprs[1]->vtype != TYPE_FLOAT ||
1054 !(exprs[0]->vtype == TYPE_FLOAT ||
1055 exprs[0]->vtype == TYPE_VECTOR))
1057 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1058 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1059 compile_error(ctx, "invalid types used in expression: %s and %s",
1063 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1064 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1066 if (ast_istype(exprs[0], ast_entfield))
1067 assignop = type_storep_instr[exprs[0]->vtype];
1069 assignop = type_store_instr[exprs[0]->vtype];
1070 switch (exprs[0]->vtype) {
1072 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1073 (op->id == opid2('*','=') ? INSTR_MUL_F : INSTR_DIV_F),
1074 exprs[0], exprs[1]);
1077 if (op->id == opid2('*','=')) {
1078 out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
1079 exprs[0], exprs[1]);
1081 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F,
1082 (ast_expression*)parser->fold->imm_float[1],
1085 compile_error(ctx, "internal error: failed to generate division");
1088 out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
1093 compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
1094 type_name[exprs[0]->vtype],
1095 type_name[exprs[1]->vtype]);
1099 case opid2('&','='):
1100 case opid2('|','='):
1101 if (NotSameType(TYPE_FLOAT)) {
1102 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1103 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1104 compile_error(ctx, "invalid types used in expression: %s and %s",
1108 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1109 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1111 if (ast_istype(exprs[0], ast_entfield))
1112 assignop = type_storep_instr[exprs[0]->vtype];
1114 assignop = type_store_instr[exprs[0]->vtype];
1115 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1116 (op->id == opid2('&','=') ? INSTR_BITAND : INSTR_BITOR),
1117 exprs[0], exprs[1]);
1119 case opid3('&','~','='):
1120 /* This is like: a &= ~(b);
1121 * But QC has no bitwise-not, so we implement it as
1124 if (NotSameType(TYPE_FLOAT)) {
1125 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1126 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1127 compile_error(ctx, "invalid types used in expression: %s and %s",
1131 if (ast_istype(exprs[0], ast_entfield))
1132 assignop = type_storep_instr[exprs[0]->vtype];
1134 assignop = type_store_instr[exprs[0]->vtype];
1135 out = (ast_expression*)ast_binary_new(ctx, INSTR_BITAND, exprs[0], exprs[1]);
1138 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1139 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1141 asbinstore = ast_binstore_new(ctx, assignop, INSTR_SUB_F, exprs[0], out);
1142 asbinstore->keep_dest = true;
1143 out = (ast_expression*)asbinstore;
1146 case opid2('~', 'P'):
1147 if (exprs[0]->vtype != TYPE_FLOAT) {
1148 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1149 compile_error(ast_ctx(exprs[0]), "invalid type for bit not: %s", ty1);
1152 if (!(out = fold_op(parser->fold, op, exprs)))
1153 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F, (ast_expression*)parser->fold->imm_float[2], exprs[0]);
1158 compile_error(ctx, "failed to apply operator %s", op->op);
1162 vec_push(sy->out, syexp(ctx, out));
1166 static bool parser_close_call(parser_t *parser, shunt *sy)
1168 /* was a function call */
1169 ast_expression *fun;
1170 ast_value *funval = NULL;
1174 size_t paramcount, i;
1176 fid = vec_last(sy->ops).off;
1177 vec_shrinkby(sy->ops, 1);
1179 /* out[fid] is the function
1180 * everything above is parameters...
1182 if (!vec_size(sy->argc)) {
1183 parseerror(parser, "internal error: no argument counter available");
1187 paramcount = vec_last(sy->argc);
1190 if (vec_size(sy->out) < fid) {
1191 parseerror(parser, "internal error: broken function call%lu < %lu+%lu\n",
1192 (unsigned long)vec_size(sy->out),
1194 (unsigned long)paramcount);
1199 * TODO handle this at the intrinsic level with an ast_intrinsic
1202 if ((fun = sy->out[fid].out) == intrin_debug_typestring(parser)) {
1204 if (fid+2 != vec_size(sy->out) ||
1205 vec_last(sy->out).block)
1207 parseerror(parser, "intrinsic __builtin_debug_typestring requires exactly 1 parameter");
1210 ast_type_to_string(vec_last(sy->out).out, ty, sizeof(ty));
1211 ast_unref(vec_last(sy->out).out);
1212 sy->out[fid] = syexp(ast_ctx(vec_last(sy->out).out),
1213 (ast_expression*)fold_constgen_string(parser->fold, ty, false));
1214 vec_shrinkby(sy->out, 1);
1217 call = ast_call_new(sy->ops[vec_size(sy->ops)].ctx, fun);
1222 if (fid+1 < vec_size(sy->out))
1225 if (fid+1 + paramcount != vec_size(sy->out)) {
1226 parseerror(parser, "internal error: parameter count mismatch: (%lu+1+%lu), %lu",
1227 (unsigned long)fid, (unsigned long)paramcount, (unsigned long)vec_size(sy->out));
1231 for (i = 0; i < paramcount; ++i)
1232 vec_push(call->params, sy->out[fid+1 + i].out);
1233 vec_shrinkby(sy->out, paramcount);
1234 (void)!ast_call_check_types(call, parser->function->vtype->expression.varparam);
1235 if (parser->max_param_count < paramcount)
1236 parser->max_param_count = paramcount;
1238 if (ast_istype(fun, ast_value)) {
1239 funval = (ast_value*)fun;
1240 if ((fun->flags & AST_FLAG_VARIADIC) &&
1241 !(/*funval->cvq == CV_CONST && */ funval->hasvalue && funval->constval.vfunc->builtin))
1243 call->va_count = (ast_expression*)fold_constgen_float(parser->fold, (qcfloat_t)paramcount);
1247 /* overwrite fid, the function, with a call */
1248 sy->out[fid] = syexp(call->expression.node.context, (ast_expression*)call);
1250 if (fun->vtype != TYPE_FUNCTION) {
1251 parseerror(parser, "not a function (%s)", type_name[fun->vtype]);
1256 parseerror(parser, "could not determine function return type");
1259 ast_value *fval = (ast_istype(fun, ast_value) ? ((ast_value*)fun) : NULL);
1261 if (fun->flags & AST_FLAG_DEPRECATED) {
1263 return !parsewarning(parser, WARN_DEPRECATED,
1264 "call to function (which is marked deprecated)\n",
1265 "-> it has been declared here: %s:%i",
1266 ast_ctx(fun).file, ast_ctx(fun).line);
1269 return !parsewarning(parser, WARN_DEPRECATED,
1270 "call to `%s` (which is marked deprecated)\n"
1271 "-> `%s` declared here: %s:%i",
1272 fval->name, fval->name, ast_ctx(fun).file, ast_ctx(fun).line);
1274 return !parsewarning(parser, WARN_DEPRECATED,
1275 "call to `%s` (deprecated: %s)\n"
1276 "-> `%s` declared here: %s:%i",
1277 fval->name, fval->desc, fval->name, ast_ctx(fun).file,
1281 if (vec_size(fun->params) != paramcount &&
1282 !((fun->flags & AST_FLAG_VARIADIC) &&
1283 vec_size(fun->params) < paramcount))
1285 const char *fewmany = (vec_size(fun->params) > paramcount) ? "few" : "many";
1287 return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT,
1288 "too %s parameters for call to %s: expected %i, got %i\n"
1289 " -> `%s` has been declared here: %s:%i",
1290 fewmany, fval->name, (int)vec_size(fun->params), (int)paramcount,
1291 fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
1293 return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT,
1294 "too %s parameters for function call: expected %i, got %i\n"
1295 " -> it has been declared here: %s:%i",
1296 fewmany, (int)vec_size(fun->params), (int)paramcount,
1297 ast_ctx(fun).file, (int)ast_ctx(fun).line);
1304 static bool parser_close_paren(parser_t *parser, shunt *sy)
1306 if (!vec_size(sy->ops)) {
1307 parseerror(parser, "unmatched closing paren");
1311 while (vec_size(sy->ops)) {
1312 if (vec_last(sy->ops).isparen) {
1313 if (vec_last(sy->paren) == PAREN_FUNC) {
1315 if (!parser_close_call(parser, sy))
1319 if (vec_last(sy->paren) == PAREN_EXPR) {
1321 if (!vec_size(sy->out)) {
1322 compile_error(vec_last(sy->ops).ctx, "empty paren expression");
1323 vec_shrinkby(sy->ops, 1);
1326 vec_shrinkby(sy->ops, 1);
1329 if (vec_last(sy->paren) == PAREN_INDEX) {
1331 /* pop off the parenthesis */
1332 vec_shrinkby(sy->ops, 1);
1333 /* then apply the index operator */
1334 if (!parser_sy_apply_operator(parser, sy))
1338 if (vec_last(sy->paren) == PAREN_TERNARY1) {
1339 vec_last(sy->paren) = PAREN_TERNARY2;
1340 /* pop off the parenthesis */
1341 vec_shrinkby(sy->ops, 1);
1344 compile_error(vec_last(sy->ops).ctx, "invalid parenthesis");
1347 if (!parser_sy_apply_operator(parser, sy))
1353 static void parser_reclassify_token(parser_t *parser)
1356 if (parser->tok >= TOKEN_START)
1358 for (i = 0; i < operator_count; ++i) {
1359 if (!strcmp(parser_tokval(parser), operators[i].op)) {
1360 parser->tok = TOKEN_OPERATOR;
1366 static ast_expression* parse_vararg_do(parser_t *parser)
1368 ast_expression *idx, *out;
1370 ast_value *funtype = parser->function->vtype;
1371 lex_ctx_t ctx = parser_ctx(parser);
1373 if (!parser->function->varargs) {
1374 parseerror(parser, "function has no variable argument list");
1378 if (!parser_next(parser) || parser->tok != '(') {
1379 parseerror(parser, "expected parameter index and type in parenthesis");
1382 if (!parser_next(parser)) {
1383 parseerror(parser, "error parsing parameter index");
1387 idx = parse_expression_leave(parser, true, false, false);
1391 if (parser->tok != ',') {
1392 if (parser->tok != ')') {
1394 parseerror(parser, "expected comma after parameter index");
1397 /* vararg piping: ...(start) */
1398 out = (ast_expression*)ast_argpipe_new(ctx, idx);
1402 if (!parser_next(parser) || (parser->tok != TOKEN_IDENT && parser->tok != TOKEN_TYPENAME)) {
1404 parseerror(parser, "expected typename for vararg");
1408 typevar = parse_typename(parser, NULL, NULL);
1414 if (parser->tok != ')') {
1416 ast_delete(typevar);
1417 parseerror(parser, "expected closing paren");
1421 if (funtype->expression.varparam &&
1422 !ast_compare_type((ast_expression*)typevar, (ast_expression*)funtype->expression.varparam))
1426 ast_type_to_string((ast_expression*)typevar, ty1, sizeof(ty1));
1427 ast_type_to_string((ast_expression*)funtype->expression.varparam, ty2, sizeof(ty2));
1428 compile_error(ast_ctx(typevar),
1429 "function was declared to take varargs of type `%s`, requested type is: %s",
1433 out = (ast_expression*)ast_array_index_new(ctx, (ast_expression*)(parser->function->varargs), idx);
1434 ast_type_adopt(out, typevar);
1435 ast_delete(typevar);
1439 static ast_expression* parse_vararg(parser_t *parser)
1441 bool old_noops = parser->lex->flags.noops;
1443 ast_expression *out;
1445 parser->lex->flags.noops = true;
1446 out = parse_vararg_do(parser);
1448 parser->lex->flags.noops = old_noops;
1452 /* not to be exposed */
1453 extern bool ftepp_predef_exists(const char *name);
1455 static bool parse_sya_operand(parser_t *parser, shunt *sy, bool with_labels)
1457 if (OPTS_FLAG(TRANSLATABLE_STRINGS) &&
1458 parser->tok == TOKEN_IDENT &&
1459 !strcmp(parser_tokval(parser), "_"))
1461 /* a translatable string */
1464 parser->lex->flags.noops = true;
1465 if (!parser_next(parser) || parser->tok != '(') {
1466 parseerror(parser, "use _(\"string\") to create a translatable string constant");
1469 parser->lex->flags.noops = false;
1470 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
1471 parseerror(parser, "expected a constant string in translatable-string extension");
1474 val = (ast_value*)fold_constgen_string(parser->fold, parser_tokval(parser), true);
1477 vec_push(sy->out, syexp(parser_ctx(parser), (ast_expression*)val));
1479 if (!parser_next(parser) || parser->tok != ')') {
1480 parseerror(parser, "expected closing paren after translatable string");
1485 else if (parser->tok == TOKEN_DOTS)
1488 if (!OPTS_FLAG(VARIADIC_ARGS)) {
1489 parseerror(parser, "cannot access varargs (try -fvariadic-args)");
1492 va = parse_vararg(parser);
1495 vec_push(sy->out, syexp(parser_ctx(parser), va));
1498 else if (parser->tok == TOKEN_FLOATCONST) {
1499 ast_expression *val = fold_constgen_float(parser->fold, (parser_token(parser)->constval.f));
1502 vec_push(sy->out, syexp(parser_ctx(parser), val));
1505 else if (parser->tok == TOKEN_INTCONST || parser->tok == TOKEN_CHARCONST) {
1506 ast_expression *val = fold_constgen_float(parser->fold, (qcfloat_t)(parser_token(parser)->constval.i));
1509 vec_push(sy->out, syexp(parser_ctx(parser), val));
1512 else if (parser->tok == TOKEN_STRINGCONST) {
1513 ast_expression *val = fold_constgen_string(parser->fold, parser_tokval(parser), false);
1516 vec_push(sy->out, syexp(parser_ctx(parser), val));
1519 else if (parser->tok == TOKEN_VECTORCONST) {
1520 ast_expression *val = fold_constgen_vector(parser->fold, parser_token(parser)->constval.v);
1523 vec_push(sy->out, syexp(parser_ctx(parser), val));
1526 else if (parser->tok == TOKEN_IDENT)
1528 const char *ctoken = parser_tokval(parser);
1529 ast_expression *prev = vec_size(sy->out) ? vec_last(sy->out).out : NULL;
1530 ast_expression *var;
1531 /* a_vector.{x,y,z} */
1532 if (!vec_size(sy->ops) ||
1533 !vec_last(sy->ops).etype ||
1534 operators[vec_last(sy->ops).etype-1].id != opid1('.'))
1536 /* When adding more intrinsics, fix the above condition */
1539 if (prev && prev->vtype == TYPE_VECTOR && ctoken[0] >= 'x' && ctoken[0] <= 'z' && !ctoken[1])
1541 var = (ast_expression*)parser->const_vec[ctoken[0]-'x'];
1543 var = parser_find_var(parser, parser_tokval(parser));
1545 var = parser_find_field(parser, parser_tokval(parser));
1547 if (!var && with_labels) {
1548 var = (ast_expression*)parser_find_label(parser, parser_tokval(parser));
1550 ast_label *lbl = ast_label_new(parser_ctx(parser), parser_tokval(parser), true);
1551 var = (ast_expression*)lbl;
1552 vec_push(parser->labels, lbl);
1555 if (!var && !strcmp(parser_tokval(parser), "__FUNC__"))
1556 var = (ast_expression*)fold_constgen_string(parser->fold, parser->function->name, false);
1559 * now we try for the real intrinsic hashtable. If the string
1560 * begins with __builtin, we simply skip past it, otherwise we
1561 * use the identifier as is.
1563 if (!strncmp(parser_tokval(parser), "__builtin_", 10)) {
1564 var = intrin_func(parser, parser_tokval(parser));
1568 char *correct = NULL;
1572 * sometimes people use preprocessing predefs without enabling them
1573 * i've done this thousands of times already myself. Lets check for
1574 * it in the predef table. And diagnose it better :)
1576 if (!OPTS_FLAG(FTEPP_PREDEFS) && ftepp_predef_exists(parser_tokval(parser))) {
1577 parseerror(parser, "unexpected identifier: %s (use -fftepp-predef to enable pre-defined macros)", parser_tokval(parser));
1582 * TODO: determine the best score for the identifier: be it
1583 * a variable, a field.
1585 * We should also consider adding correction tables for
1586 * other things as well.
1588 if (OPTS_OPTION_BOOL(OPTION_CORRECTION) && strlen(parser_tokval(parser)) <= 16) {
1590 correct_init(&corr);
1592 for (i = 0; i < vec_size(parser->correct_variables); i++) {
1593 correct = correct_str(&corr, parser->correct_variables[i], parser_tokval(parser));
1594 if (strcmp(correct, parser_tokval(parser))) {
1601 correct_free(&corr);
1604 parseerror(parser, "unexpected identifier: %s (did you mean %s?)", parser_tokval(parser), correct);
1609 parseerror(parser, "unexpected identifier: %s", parser_tokval(parser));
1615 if (ast_istype(var, ast_value)) {
1616 ((ast_value*)var)->uses++;
1618 else if (ast_istype(var, ast_member)) {
1619 ast_member *mem = (ast_member*)var;
1620 if (ast_istype(mem->owner, ast_value))
1621 ((ast_value*)(mem->owner))->uses++;
1624 vec_push(sy->out, syexp(parser_ctx(parser), var));
1627 parseerror(parser, "unexpected token `%s`", parser_tokval(parser));
1631 static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels)
1633 ast_expression *expr = NULL;
1636 bool wantop = false;
1637 /* only warn once about an assignment in a truth value because the current code
1638 * would trigger twice on: if(a = b && ...), once for the if-truth-value, once for the && part
1640 bool warn_truthvalue = true;
1642 /* count the parens because an if starts with one, so the
1643 * end of a condition is an unmatched closing paren
1647 memset(&sy, 0, sizeof(sy));
1649 parser->lex->flags.noops = false;
1651 parser_reclassify_token(parser);
1655 if (parser->tok == TOKEN_TYPENAME) {
1656 parseerror(parser, "unexpected typename `%s`", parser_tokval(parser));
1660 if (parser->tok == TOKEN_OPERATOR)
1662 /* classify the operator */
1663 const oper_info *op;
1664 const oper_info *olast = NULL;
1666 for (o = 0; o < operator_count; ++o) {
1667 if (((!(operators[o].flags & OP_PREFIX) == !!wantop)) &&
1668 /* !(operators[o].flags & OP_SUFFIX) && / * remove this */
1669 !strcmp(parser_tokval(parser), operators[o].op))
1674 if (o == operator_count) {
1675 compile_error(parser_ctx(parser), "unknown operator: %s", parser_tokval(parser));
1678 /* found an operator */
1681 /* when declaring variables, a comma starts a new variable */
1682 if (op->id == opid1(',') && !vec_size(sy.paren) && stopatcomma) {
1683 /* fixup the token */
1688 /* a colon without a pervious question mark cannot be a ternary */
1689 if (!ternaries && op->id == opid2(':','?')) {
1694 if (op->id == opid1(',')) {
1695 if (vec_size(sy.paren) && vec_last(sy.paren) == PAREN_TERNARY2) {
1696 (void)!parsewarning(parser, WARN_TERNARY_PRECEDENCE, "suggesting parenthesis around ternary expression");
1700 if (vec_size(sy.ops) && !vec_last(sy.ops).isparen)
1701 olast = &operators[vec_last(sy.ops).etype-1];
1703 #define IsAssignOp(x) (\
1704 (x) == opid1('=') || \
1705 (x) == opid2('+','=') || \
1706 (x) == opid2('-','=') || \
1707 (x) == opid2('*','=') || \
1708 (x) == opid2('/','=') || \
1709 (x) == opid2('%','=') || \
1710 (x) == opid2('&','=') || \
1711 (x) == opid2('|','=') || \
1712 (x) == opid3('&','~','=') \
1714 if (warn_truthvalue) {
1715 if ( (olast && IsAssignOp(olast->id) && (op->id == opid2('&','&') || op->id == opid2('|','|'))) ||
1716 (olast && IsAssignOp(op->id) && (olast->id == opid2('&','&') || olast->id == opid2('|','|'))) ||
1717 (truthvalue && !vec_size(sy.paren) && IsAssignOp(op->id))
1720 (void)!parsewarning(parser, WARN_PARENTHESIS, "suggesting parenthesis around assignment used as truth value");
1721 warn_truthvalue = false;
1726 (op->prec < olast->prec) ||
1727 (op->assoc == ASSOC_LEFT && op->prec <= olast->prec) ) )
1729 if (!parser_sy_apply_operator(parser, &sy))
1731 if (vec_size(sy.ops) && !vec_last(sy.ops).isparen)
1732 olast = &operators[vec_last(sy.ops).etype-1];
1737 if (op->id == opid1('(')) {
1739 size_t sycount = vec_size(sy.out);
1740 /* we expected an operator, this is the function-call operator */
1741 vec_push(sy.paren, PAREN_FUNC);
1742 vec_push(sy.ops, syparen(parser_ctx(parser), sycount-1));
1743 vec_push(sy.argc, 0);
1745 vec_push(sy.paren, PAREN_EXPR);
1746 vec_push(sy.ops, syparen(parser_ctx(parser), 0));
1749 } else if (op->id == opid1('[')) {
1751 parseerror(parser, "unexpected array subscript");
1754 vec_push(sy.paren, PAREN_INDEX);
1755 /* push both the operator and the paren, this makes life easier */
1756 vec_push(sy.ops, syop(parser_ctx(parser), op));
1757 vec_push(sy.ops, syparen(parser_ctx(parser), 0));
1759 } else if (op->id == opid2('?',':')) {
1760 vec_push(sy.ops, syop(parser_ctx(parser), op));
1761 vec_push(sy.ops, syparen(parser_ctx(parser), 0));
1764 vec_push(sy.paren, PAREN_TERNARY1);
1765 } else if (op->id == opid2(':','?')) {
1766 if (!vec_size(sy.paren)) {
1767 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
1770 if (vec_last(sy.paren) != PAREN_TERNARY1) {
1771 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
1774 if (!parser_close_paren(parser, &sy))
1776 vec_push(sy.ops, syop(parser_ctx(parser), op));
1780 vec_push(sy.ops, syop(parser_ctx(parser), op));
1781 wantop = !!(op->flags & OP_SUFFIX);
1784 else if (parser->tok == ')') {
1785 while (vec_size(sy.paren) && vec_last(sy.paren) == PAREN_TERNARY2) {
1786 if (!parser_sy_apply_operator(parser, &sy))
1789 if (!vec_size(sy.paren))
1792 if (vec_last(sy.paren) == PAREN_TERNARY1) {
1793 parseerror(parser, "mismatched parentheses (closing paren in ternary expression?)");
1796 if (!parser_close_paren(parser, &sy))
1799 /* must be a function call without parameters */
1800 if (vec_last(sy.paren) != PAREN_FUNC) {
1801 parseerror(parser, "closing paren in invalid position");
1804 if (!parser_close_paren(parser, &sy))
1809 else if (parser->tok == '(') {
1810 parseerror(parser, "internal error: '(' should be classified as operator");
1813 else if (parser->tok == '[') {
1814 parseerror(parser, "internal error: '[' should be classified as operator");
1817 else if (parser->tok == ']') {
1818 while (vec_size(sy.paren) && vec_last(sy.paren) == PAREN_TERNARY2) {
1819 if (!parser_sy_apply_operator(parser, &sy))
1822 if (!vec_size(sy.paren))
1824 if (vec_last(sy.paren) != PAREN_INDEX) {
1825 parseerror(parser, "mismatched parentheses, unexpected ']'");
1828 if (!parser_close_paren(parser, &sy))
1833 if (!parse_sya_operand(parser, &sy, with_labels))
1836 if (vec_size(sy.paren) && vec_last(sy.ops).isparen && vec_last(sy.paren) == PAREN_FUNC)
1837 vec_last(sy.argc)++;
1842 /* in this case we might want to allow constant string concatenation */
1843 bool concatenated = false;
1844 if (parser->tok == TOKEN_STRINGCONST && vec_size(sy.out)) {
1845 ast_expression *lexpr = vec_last(sy.out).out;
1846 if (ast_istype(lexpr, ast_value)) {
1847 ast_value *last = (ast_value*)lexpr;
1848 if (last->isimm == true && last->cvq == CV_CONST &&
1849 last->hasvalue && last->expression.vtype == TYPE_STRING)
1851 char *newstr = NULL;
1852 util_asprintf(&newstr, "%s%s", last->constval.vstring, parser_tokval(parser));
1853 vec_last(sy.out).out = (ast_expression*)fold_constgen_string(parser->fold, newstr, false);
1855 concatenated = true;
1859 if (!concatenated) {
1860 parseerror(parser, "expected operator or end of statement");
1865 if (!parser_next(parser)) {
1868 if (parser->tok == ';' ||
1869 ((!vec_size(sy.paren) || (vec_size(sy.paren) == 1 && vec_last(sy.paren) == PAREN_TERNARY2)) &&
1870 (parser->tok == ']' || parser->tok == ')' || parser->tok == '}')))
1876 while (vec_size(sy.ops)) {
1877 if (!parser_sy_apply_operator(parser, &sy))
1881 parser->lex->flags.noops = true;
1882 if (vec_size(sy.out) != 1) {
1883 parseerror(parser, "expression with not 1 but %lu output values...", (unsigned long) vec_size(sy.out));
1886 expr = sy.out[0].out;
1889 if (vec_size(sy.paren)) {
1890 parseerror(parser, "internal error: vec_size(sy.paren) = %lu", (unsigned long)vec_size(sy.paren));
1898 parser->lex->flags.noops = true;
1899 for (i = 0; i < vec_size(sy.out); ++i) {
1901 ast_unref(sy.out[i].out);
1910 static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels)
1912 ast_expression *e = parse_expression_leave(parser, stopatcomma, false, with_labels);
1915 if (parser->tok != ';') {
1916 parseerror(parser, "semicolon expected after expression");
1920 if (!parser_next(parser)) {
1927 static void parser_enterblock(parser_t *parser)
1929 vec_push(parser->variables, util_htnew(PARSER_HT_SIZE));
1930 vec_push(parser->_blocklocals, vec_size(parser->_locals));
1931 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
1932 vec_push(parser->_blocktypedefs, vec_size(parser->_typedefs));
1933 vec_push(parser->_block_ctx, parser_ctx(parser));
1936 vec_push(parser->correct_variables, correct_trie_new());
1937 vec_push(parser->correct_variables_score, NULL);
1940 static bool parser_leaveblock(parser_t *parser)
1943 size_t locals, typedefs;
1945 if (vec_size(parser->variables) <= PARSER_HT_LOCALS) {
1946 parseerror(parser, "internal error: parser_leaveblock with no block");
1950 util_htdel(vec_last(parser->variables));
1951 correct_del(vec_last(parser->correct_variables), vec_last(parser->correct_variables_score));
1953 vec_pop(parser->variables);
1954 vec_pop(parser->correct_variables);
1955 vec_pop(parser->correct_variables_score);
1956 if (!vec_size(parser->_blocklocals)) {
1957 parseerror(parser, "internal error: parser_leaveblock with no block (2)");
1961 locals = vec_last(parser->_blocklocals);
1962 vec_pop(parser->_blocklocals);
1963 while (vec_size(parser->_locals) != locals) {
1964 ast_expression *e = vec_last(parser->_locals);
1965 ast_value *v = (ast_value*)e;
1966 vec_pop(parser->_locals);
1967 if (ast_istype(e, ast_value) && !v->uses) {
1968 if (compile_warning(ast_ctx(v), WARN_UNUSED_VARIABLE, "unused variable: `%s`", v->name))
1973 typedefs = vec_last(parser->_blocktypedefs);
1974 while (vec_size(parser->_typedefs) != typedefs) {
1975 ast_delete(vec_last(parser->_typedefs));
1976 vec_pop(parser->_typedefs);
1978 util_htdel(vec_last(parser->typedefs));
1979 vec_pop(parser->typedefs);
1981 vec_pop(parser->_block_ctx);
1986 static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e)
1988 vec_push(parser->_locals, e);
1989 util_htset(vec_last(parser->variables), name, (void*)e);
1993 vec_last(parser->correct_variables),
1994 &vec_last(parser->correct_variables_score),
1999 static void parser_addglobal(parser_t *parser, const char *name, ast_expression *e)
2001 vec_push(parser->globals, e);
2002 util_htset(parser->htglobals, name, e);
2006 parser->correct_variables[0],
2007 &parser->correct_variables_score[0],
2012 static ast_expression* process_condition(parser_t *parser, ast_expression *cond, bool *_ifnot)
2016 ast_expression *prev;
2018 if (cond->vtype == TYPE_VOID || cond->vtype >= TYPE_VARIANT) {
2020 ast_type_to_string(cond, ty, sizeof(ty));
2021 compile_error(ast_ctx(cond), "invalid type for if() condition: %s", ty);
2024 if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && cond->vtype == TYPE_STRING)
2027 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_S, cond);
2030 parseerror(parser, "internal error: failed to process condition");
2035 else if (OPTS_FLAG(CORRECT_LOGIC) && cond->vtype == TYPE_VECTOR)
2037 /* vector types need to be cast to true booleans */
2038 ast_binary *bin = (ast_binary*)cond;
2039 if (!OPTS_FLAG(PERL_LOGIC) || !ast_istype(cond, ast_binary) || !(bin->op == INSTR_AND || bin->op == INSTR_OR))
2041 /* in perl-logic, AND and OR take care of the -fcorrect-logic */
2043 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_V, cond);
2046 parseerror(parser, "internal error: failed to process condition");
2053 unary = (ast_unary*)cond;
2054 /* ast_istype dereferences cond, should test here for safety */
2055 while (cond && ast_istype(cond, ast_unary) && unary->op == INSTR_NOT_F)
2057 cond = unary->operand;
2058 unary->operand = NULL;
2061 unary = (ast_unary*)cond;
2065 parseerror(parser, "internal error: failed to process condition");
2067 if (ifnot) *_ifnot = !*_ifnot;
2071 static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out)
2074 ast_expression *cond, *ontrue = NULL, *onfalse = NULL;
2077 lex_ctx_t ctx = parser_ctx(parser);
2079 (void)block; /* not touching */
2081 /* skip the 'if', parse an optional 'not' and check for an opening paren */
2082 if (!parser_next(parser)) {
2083 parseerror(parser, "expected condition or 'not'");
2086 if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "not")) {
2088 if (!parser_next(parser)) {
2089 parseerror(parser, "expected condition in parenthesis");
2093 if (parser->tok != '(') {
2094 parseerror(parser, "expected 'if' condition in parenthesis");
2097 /* parse into the expression */
2098 if (!parser_next(parser)) {
2099 parseerror(parser, "expected 'if' condition after opening paren");
2102 /* parse the condition */
2103 cond = parse_expression_leave(parser, false, true, false);
2107 if (parser->tok != ')') {
2108 parseerror(parser, "expected closing paren after 'if' condition");
2112 /* parse into the 'then' branch */
2113 if (!parser_next(parser)) {
2114 parseerror(parser, "expected statement for on-true branch of 'if'");
2118 if (!parse_statement_or_block(parser, &ontrue)) {
2123 ontrue = (ast_expression*)ast_block_new(parser_ctx(parser));
2124 /* check for an else */
2125 if (!strcmp(parser_tokval(parser), "else")) {
2126 /* parse into the 'else' branch */
2127 if (!parser_next(parser)) {
2128 parseerror(parser, "expected on-false branch after 'else'");
2133 if (!parse_statement_or_block(parser, &onfalse)) {
2140 cond = process_condition(parser, cond, &ifnot);
2142 if (ontrue) ast_delete(ontrue);
2143 if (onfalse) ast_delete(onfalse);
2148 ifthen = ast_ifthen_new(ctx, cond, onfalse, ontrue);
2150 ifthen = ast_ifthen_new(ctx, cond, ontrue, onfalse);
2151 *out = (ast_expression*)ifthen;
2155 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out);
2156 static bool parse_while(parser_t *parser, ast_block *block, ast_expression **out)
2161 /* skip the 'while' and get the body */
2162 if (!parser_next(parser)) {
2163 if (OPTS_FLAG(LOOP_LABELS))
2164 parseerror(parser, "expected loop label or 'while' condition in parenthesis");
2166 parseerror(parser, "expected 'while' condition in parenthesis");
2170 if (parser->tok == ':') {
2171 if (!OPTS_FLAG(LOOP_LABELS))
2172 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2173 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2174 parseerror(parser, "expected loop label");
2177 label = util_strdup(parser_tokval(parser));
2178 if (!parser_next(parser)) {
2180 parseerror(parser, "expected 'while' condition in parenthesis");
2185 if (parser->tok != '(') {
2186 parseerror(parser, "expected 'while' condition in parenthesis");
2190 vec_push(parser->breaks, label);
2191 vec_push(parser->continues, label);
2193 rv = parse_while_go(parser, block, out);
2196 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2197 parseerror(parser, "internal error: label stack corrupted");
2203 vec_pop(parser->breaks);
2204 vec_pop(parser->continues);
2209 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out)
2212 ast_expression *cond, *ontrue;
2216 lex_ctx_t ctx = parser_ctx(parser);
2218 (void)block; /* not touching */
2220 /* parse into the expression */
2221 if (!parser_next(parser)) {
2222 parseerror(parser, "expected 'while' condition after opening paren");
2225 /* parse the condition */
2226 cond = parse_expression_leave(parser, false, true, false);
2230 if (parser->tok != ')') {
2231 parseerror(parser, "expected closing paren after 'while' condition");
2235 /* parse into the 'then' branch */
2236 if (!parser_next(parser)) {
2237 parseerror(parser, "expected while-loop body");
2241 if (!parse_statement_or_block(parser, &ontrue)) {
2246 cond = process_condition(parser, cond, &ifnot);
2251 aloop = ast_loop_new(ctx, NULL, cond, ifnot, NULL, false, NULL, ontrue);
2252 *out = (ast_expression*)aloop;
2256 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out);
2257 static bool parse_dowhile(parser_t *parser, ast_block *block, ast_expression **out)
2262 /* skip the 'do' and get the body */
2263 if (!parser_next(parser)) {
2264 if (OPTS_FLAG(LOOP_LABELS))
2265 parseerror(parser, "expected loop label or body");
2267 parseerror(parser, "expected loop body");
2271 if (parser->tok == ':') {
2272 if (!OPTS_FLAG(LOOP_LABELS))
2273 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2274 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2275 parseerror(parser, "expected loop label");
2278 label = util_strdup(parser_tokval(parser));
2279 if (!parser_next(parser)) {
2281 parseerror(parser, "expected loop body");
2286 vec_push(parser->breaks, label);
2287 vec_push(parser->continues, label);
2289 rv = parse_dowhile_go(parser, block, out);
2292 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2293 parseerror(parser, "internal error: label stack corrupted");
2296 * Test for NULL otherwise ast_delete dereferences null pointer
2304 vec_pop(parser->breaks);
2305 vec_pop(parser->continues);
2310 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out)
2313 ast_expression *cond, *ontrue;
2317 lex_ctx_t ctx = parser_ctx(parser);
2319 (void)block; /* not touching */
2321 if (!parse_statement_or_block(parser, &ontrue))
2324 /* expect the "while" */
2325 if (parser->tok != TOKEN_KEYWORD ||
2326 strcmp(parser_tokval(parser), "while"))
2328 parseerror(parser, "expected 'while' and condition");
2333 /* skip the 'while' and check for opening paren */
2334 if (!parser_next(parser) || parser->tok != '(') {
2335 parseerror(parser, "expected 'while' condition in parenthesis");
2339 /* parse into the expression */
2340 if (!parser_next(parser)) {
2341 parseerror(parser, "expected 'while' condition after opening paren");
2345 /* parse the condition */
2346 cond = parse_expression_leave(parser, false, true, false);
2350 if (parser->tok != ')') {
2351 parseerror(parser, "expected closing paren after 'while' condition");
2357 if (!parser_next(parser) || parser->tok != ';') {
2358 parseerror(parser, "expected semicolon after condition");
2364 if (!parser_next(parser)) {
2365 parseerror(parser, "parse error");
2371 cond = process_condition(parser, cond, &ifnot);
2376 aloop = ast_loop_new(ctx, NULL, NULL, false, cond, ifnot, NULL, ontrue);
2377 *out = (ast_expression*)aloop;
2381 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out);
2382 static bool parse_for(parser_t *parser, ast_block *block, ast_expression **out)
2387 /* skip the 'for' and check for opening paren */
2388 if (!parser_next(parser)) {
2389 if (OPTS_FLAG(LOOP_LABELS))
2390 parseerror(parser, "expected loop label or 'for' expressions in parenthesis");
2392 parseerror(parser, "expected 'for' expressions in parenthesis");
2396 if (parser->tok == ':') {
2397 if (!OPTS_FLAG(LOOP_LABELS))
2398 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2399 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2400 parseerror(parser, "expected loop label");
2403 label = util_strdup(parser_tokval(parser));
2404 if (!parser_next(parser)) {
2406 parseerror(parser, "expected 'for' expressions in parenthesis");
2411 if (parser->tok != '(') {
2412 parseerror(parser, "expected 'for' expressions in parenthesis");
2416 vec_push(parser->breaks, label);
2417 vec_push(parser->continues, label);
2419 rv = parse_for_go(parser, block, out);
2422 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2423 parseerror(parser, "internal error: label stack corrupted");
2429 vec_pop(parser->breaks);
2430 vec_pop(parser->continues);
2434 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out)
2437 ast_expression *initexpr, *cond, *increment, *ontrue;
2442 lex_ctx_t ctx = parser_ctx(parser);
2444 parser_enterblock(parser);
2451 /* parse into the expression */
2452 if (!parser_next(parser)) {
2453 parseerror(parser, "expected 'for' initializer after opening paren");
2458 if (parser->tok == TOKEN_IDENT)
2459 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
2461 if (typevar || parser->tok == TOKEN_TYPENAME) {
2463 if (OPTS_OPTION_U32(OPTION_STANDARD) != COMPILER_GMQCC) {
2464 if (parsewarning(parser, WARN_EXTENSIONS,
2465 "current standard does not allow variable declarations in for-loop initializers"))
2469 if (!parse_variable(parser, block, true, CV_VAR, typevar, false, false, 0, NULL))
2472 else if (parser->tok != ';')
2474 initexpr = parse_expression_leave(parser, false, false, false);
2479 /* move on to condition */
2480 if (parser->tok != ';') {
2481 parseerror(parser, "expected semicolon after for-loop initializer");
2484 if (!parser_next(parser)) {
2485 parseerror(parser, "expected for-loop condition");
2489 /* parse the condition */
2490 if (parser->tok != ';') {
2491 cond = parse_expression_leave(parser, false, true, false);
2496 /* move on to incrementor */
2497 if (parser->tok != ';') {
2498 parseerror(parser, "expected semicolon after for-loop initializer");
2501 if (!parser_next(parser)) {
2502 parseerror(parser, "expected for-loop condition");
2506 /* parse the incrementor */
2507 if (parser->tok != ')') {
2508 lex_ctx_t condctx = parser_ctx(parser);
2509 increment = parse_expression_leave(parser, false, false, false);
2512 if (!ast_side_effects(increment)) {
2513 if (compile_warning(condctx, WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
2519 if (parser->tok != ')') {
2520 parseerror(parser, "expected closing paren after 'for-loop' incrementor");
2523 /* parse into the 'then' branch */
2524 if (!parser_next(parser)) {
2525 parseerror(parser, "expected for-loop body");
2528 if (!parse_statement_or_block(parser, &ontrue))
2532 cond = process_condition(parser, cond, &ifnot);
2536 aloop = ast_loop_new(ctx, initexpr, cond, ifnot, NULL, false, increment, ontrue);
2537 *out = (ast_expression*)aloop;
2539 if (!parser_leaveblock(parser)) {
2545 if (initexpr) ast_unref(initexpr);
2546 if (cond) ast_unref(cond);
2547 if (increment) ast_unref(increment);
2548 (void)!parser_leaveblock(parser);
2552 static bool parse_return(parser_t *parser, ast_block *block, ast_expression **out)
2554 ast_expression *exp = NULL;
2555 ast_expression *var = NULL;
2556 ast_return *ret = NULL;
2557 ast_value *retval = parser->function->return_value;
2558 ast_value *expected = parser->function->vtype;
2560 lex_ctx_t ctx = parser_ctx(parser);
2562 (void)block; /* not touching */
2564 if (!parser_next(parser)) {
2565 parseerror(parser, "expected return expression");
2569 /* return assignments */
2570 if (parser->tok == '=') {
2571 if (!OPTS_FLAG(RETURN_ASSIGNMENTS)) {
2572 parseerror(parser, "return assignments not activated, try using -freturn-assigments");
2576 if (type_store_instr[expected->expression.next->vtype] == VINSTR_END) {
2578 ast_type_to_string(expected->expression.next, ty1, sizeof(ty1));
2579 parseerror(parser, "invalid return type: `%s'", ty1);
2583 if (!parser_next(parser)) {
2584 parseerror(parser, "expected return assignment expression");
2588 if (!(exp = parse_expression_leave(parser, false, false, false)))
2591 /* prepare the return value */
2593 retval = ast_value_new(ctx, "#LOCAL_RETURN", TYPE_VOID);
2594 ast_type_adopt(retval, expected->expression.next);
2595 parser->function->return_value = retval;
2598 if (!ast_compare_type(exp, (ast_expression*)retval)) {
2599 char ty1[1024], ty2[1024];
2600 ast_type_to_string(exp, ty1, sizeof(ty1));
2601 ast_type_to_string(&retval->expression, ty2, sizeof(ty2));
2602 parseerror(parser, "invalid type for return value: `%s', expected `%s'", ty1, ty2);
2605 /* store to 'return' local variable */
2606 var = (ast_expression*)ast_store_new(
2608 type_store_instr[expected->expression.next->vtype],
2609 (ast_expression*)retval, exp);
2616 if (parser->tok != ';')
2617 parseerror(parser, "missing semicolon after return assignment");
2618 else if (!parser_next(parser))
2619 parseerror(parser, "parse error after return assignment");
2625 if (parser->tok != ';') {
2626 exp = parse_expression(parser, false, false);
2630 if (exp->vtype != TYPE_NIL &&
2631 exp->vtype != ((ast_expression*)expected)->next->vtype)
2633 parseerror(parser, "return with invalid expression");
2636 ret = ast_return_new(ctx, exp);
2642 if (!parser_next(parser))
2643 parseerror(parser, "parse error");
2645 if (!retval && expected->expression.next->vtype != TYPE_VOID)
2647 (void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value");
2649 ret = ast_return_new(ctx, (ast_expression*)retval);
2651 *out = (ast_expression*)ret;
2655 static bool parse_break_continue(parser_t *parser, ast_block *block, ast_expression **out, bool is_continue)
2658 unsigned int levels = 0;
2659 lex_ctx_t ctx = parser_ctx(parser);
2660 const char **loops = (is_continue ? parser->continues : parser->breaks);
2662 (void)block; /* not touching */
2663 if (!parser_next(parser)) {
2664 parseerror(parser, "expected semicolon or loop label");
2668 if (!vec_size(loops)) {
2670 parseerror(parser, "`continue` can only be used inside loops");
2672 parseerror(parser, "`break` can only be used inside loops or switches");
2675 if (parser->tok == TOKEN_IDENT) {
2676 if (!OPTS_FLAG(LOOP_LABELS))
2677 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2678 i = vec_size(loops);
2680 if (loops[i] && !strcmp(loops[i], parser_tokval(parser)))
2683 parseerror(parser, "no such loop to %s: `%s`",
2684 (is_continue ? "continue" : "break out of"),
2685 parser_tokval(parser));
2690 if (!parser_next(parser)) {
2691 parseerror(parser, "expected semicolon");
2696 if (parser->tok != ';') {
2697 parseerror(parser, "expected semicolon");
2701 if (!parser_next(parser))
2702 parseerror(parser, "parse error");
2704 *out = (ast_expression*)ast_breakcont_new(ctx, is_continue, levels);
2708 /* returns true when it was a variable qualifier, false otherwise!
2709 * on error, cvq is set to CV_WRONG
2711 static bool parse_qualifiers(parser_t *parser, bool with_local, int *cvq, bool *noref, bool *is_static, uint32_t *_flags, char **message)
2713 bool had_const = false;
2714 bool had_var = false;
2715 bool had_noref = false;
2716 bool had_attrib = false;
2717 bool had_static = false;
2722 if (parser->tok == TOKEN_ATTRIBUTE_OPEN) {
2724 /* parse an attribute */
2725 if (!parser_next(parser)) {
2726 parseerror(parser, "expected attribute after `[[`");
2730 if (!strcmp(parser_tokval(parser), "noreturn")) {
2731 flags |= AST_FLAG_NORETURN;
2732 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2733 parseerror(parser, "`noreturn` attribute has no parameters, expected `]]`");
2738 else if (!strcmp(parser_tokval(parser), "noref")) {
2740 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2741 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2746 else if (!strcmp(parser_tokval(parser), "inline")) {
2747 flags |= AST_FLAG_INLINE;
2748 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2749 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2754 else if (!strcmp(parser_tokval(parser), "alias") && !(flags & AST_FLAG_ALIAS)) {
2755 flags |= AST_FLAG_ALIAS;
2758 if (!parser_next(parser)) {
2759 parseerror(parser, "parse error in attribute");
2763 if (parser->tok == '(') {
2764 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
2765 parseerror(parser, "`alias` attribute missing parameter");
2769 *message = util_strdup(parser_tokval(parser));
2771 if (!parser_next(parser)) {
2772 parseerror(parser, "parse error in attribute");
2776 if (parser->tok != ')') {
2777 parseerror(parser, "`alias` attribute expected `)` after parameter");
2781 if (!parser_next(parser)) {
2782 parseerror(parser, "parse error in attribute");
2787 if (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2788 parseerror(parser, "`alias` attribute expected `]]`");
2792 else if (!strcmp(parser_tokval(parser), "deprecated") && !(flags & AST_FLAG_DEPRECATED)) {
2793 flags |= AST_FLAG_DEPRECATED;
2796 if (!parser_next(parser)) {
2797 parseerror(parser, "parse error in attribute");
2801 if (parser->tok == '(') {
2802 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
2803 parseerror(parser, "`deprecated` attribute missing parameter");
2807 *message = util_strdup(parser_tokval(parser));
2809 if (!parser_next(parser)) {
2810 parseerror(parser, "parse error in attribute");
2814 if(parser->tok != ')') {
2815 parseerror(parser, "`deprecated` attribute expected `)` after parameter");
2819 if (!parser_next(parser)) {
2820 parseerror(parser, "parse error in attribute");
2825 if (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2826 parseerror(parser, "`deprecated` attribute expected `]]`");
2829 if (*message) mem_d(*message);
2837 /* Skip tokens until we hit a ]] */
2838 (void)!parsewarning(parser, WARN_UNKNOWN_ATTRIBUTE, "unknown attribute starting with `%s`", parser_tokval(parser));
2839 while (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2840 if (!parser_next(parser)) {
2841 parseerror(parser, "error inside attribute");
2848 else if (with_local && !strcmp(parser_tokval(parser), "static"))
2850 else if (!strcmp(parser_tokval(parser), "const"))
2852 else if (!strcmp(parser_tokval(parser), "var"))
2854 else if (with_local && !strcmp(parser_tokval(parser), "local"))
2856 else if (!strcmp(parser_tokval(parser), "noref"))
2858 else if (!had_const && !had_var && !had_noref && !had_attrib && !had_static && !flags) {
2863 if (!parser_next(parser))
2873 *is_static = had_static;
2877 parseerror(parser, "parse error after variable qualifier");
2882 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out);
2883 static bool parse_switch(parser_t *parser, ast_block *block, ast_expression **out)
2888 /* skip the 'while' and get the body */
2889 if (!parser_next(parser)) {
2890 if (OPTS_FLAG(LOOP_LABELS))
2891 parseerror(parser, "expected loop label or 'switch' operand in parenthesis");
2893 parseerror(parser, "expected 'switch' operand in parenthesis");
2897 if (parser->tok == ':') {
2898 if (!OPTS_FLAG(LOOP_LABELS))
2899 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2900 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2901 parseerror(parser, "expected loop label");
2904 label = util_strdup(parser_tokval(parser));
2905 if (!parser_next(parser)) {
2907 parseerror(parser, "expected 'switch' operand in parenthesis");
2912 if (parser->tok != '(') {
2913 parseerror(parser, "expected 'switch' operand in parenthesis");
2917 vec_push(parser->breaks, label);
2919 rv = parse_switch_go(parser, block, out);
2922 if (vec_last(parser->breaks) != label) {
2923 parseerror(parser, "internal error: label stack corrupted");
2929 vec_pop(parser->breaks);
2934 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out)
2936 ast_expression *operand;
2939 ast_switch *switchnode;
2940 ast_switch_case swcase;
2943 bool noref, is_static;
2944 uint32_t qflags = 0;
2946 lex_ctx_t ctx = parser_ctx(parser);
2948 (void)block; /* not touching */
2951 /* parse into the expression */
2952 if (!parser_next(parser)) {
2953 parseerror(parser, "expected switch operand");
2956 /* parse the operand */
2957 operand = parse_expression_leave(parser, false, false, false);
2961 switchnode = ast_switch_new(ctx, operand);
2964 if (parser->tok != ')') {
2965 ast_delete(switchnode);
2966 parseerror(parser, "expected closing paren after 'switch' operand");
2970 /* parse over the opening paren */
2971 if (!parser_next(parser) || parser->tok != '{') {
2972 ast_delete(switchnode);
2973 parseerror(parser, "expected list of cases");
2977 if (!parser_next(parser)) {
2978 ast_delete(switchnode);
2979 parseerror(parser, "expected 'case' or 'default'");
2983 /* new block; allow some variables to be declared here */
2984 parser_enterblock(parser);
2987 if (parser->tok == TOKEN_IDENT)
2988 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
2989 if (typevar || parser->tok == TOKEN_TYPENAME) {
2990 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL)) {
2991 ast_delete(switchnode);
2996 if (parse_qualifiers(parser, true, &cvq, &noref, &is_static, &qflags, NULL))
2998 if (cvq == CV_WRONG) {
2999 ast_delete(switchnode);
3002 if (!parse_variable(parser, block, false, cvq, NULL, noref, is_static, qflags, NULL)) {
3003 ast_delete(switchnode);
3012 while (parser->tok != '}') {
3013 ast_block *caseblock;
3015 if (!strcmp(parser_tokval(parser), "case")) {
3016 if (!parser_next(parser)) {
3017 ast_delete(switchnode);
3018 parseerror(parser, "expected expression for case");
3021 swcase.value = parse_expression_leave(parser, false, false, false);
3022 if (!swcase.value) {
3023 ast_delete(switchnode);
3024 parseerror(parser, "expected expression for case");
3027 if (!OPTS_FLAG(RELAXED_SWITCH)) {
3028 if (!ast_istype(swcase.value, ast_value)) { /* || ((ast_value*)swcase.value)->cvq != CV_CONST) { */
3029 parseerror(parser, "case on non-constant values need to be explicitly enabled via -frelaxed-switch");
3035 else if (!strcmp(parser_tokval(parser), "default")) {
3036 swcase.value = NULL;
3037 if (!parser_next(parser)) {
3038 ast_delete(switchnode);
3039 parseerror(parser, "expected colon");
3044 ast_delete(switchnode);
3045 parseerror(parser, "expected 'case' or 'default'");
3049 /* Now the colon and body */
3050 if (parser->tok != ':') {
3051 if (swcase.value) ast_unref(swcase.value);
3052 ast_delete(switchnode);
3053 parseerror(parser, "expected colon");
3057 if (!parser_next(parser)) {
3058 if (swcase.value) ast_unref(swcase.value);
3059 ast_delete(switchnode);
3060 parseerror(parser, "expected statements or case");
3063 caseblock = ast_block_new(parser_ctx(parser));
3065 if (swcase.value) ast_unref(swcase.value);
3066 ast_delete(switchnode);
3069 swcase.code = (ast_expression*)caseblock;
3070 vec_push(switchnode->cases, swcase);
3072 ast_expression *expr;
3073 if (parser->tok == '}')
3075 if (parser->tok == TOKEN_KEYWORD) {
3076 if (!strcmp(parser_tokval(parser), "case") ||
3077 !strcmp(parser_tokval(parser), "default"))
3082 if (!parse_statement(parser, caseblock, &expr, true)) {
3083 ast_delete(switchnode);
3088 if (!ast_block_add_expr(caseblock, expr)) {
3089 ast_delete(switchnode);
3095 parser_leaveblock(parser);
3098 if (parser->tok != '}') {
3099 ast_delete(switchnode);
3100 parseerror(parser, "expected closing paren of case list");
3103 if (!parser_next(parser)) {
3104 ast_delete(switchnode);
3105 parseerror(parser, "parse error after switch");
3108 *out = (ast_expression*)switchnode;
3112 /* parse computed goto sides */
3113 static ast_expression *parse_goto_computed(parser_t *parser, ast_expression **side) {
3114 ast_expression *on_true;
3115 ast_expression *on_false;
3116 ast_expression *cond;
3121 if (ast_istype(*side, ast_ternary)) {
3122 ast_ternary *tern = (ast_ternary*)*side;
3123 on_true = parse_goto_computed(parser, &tern->on_true);
3124 on_false = parse_goto_computed(parser, &tern->on_false);
3126 if (!on_true || !on_false) {
3127 parseerror(parser, "expected label or expression in ternary");
3128 if (on_true) ast_unref(on_true);
3129 if (on_false) ast_unref(on_false);
3137 return (ast_expression*)ast_ifthen_new(parser_ctx(parser), cond, on_true, on_false);
3138 } else if (ast_istype(*side, ast_label)) {
3139 ast_goto *gt = ast_goto_new(parser_ctx(parser), ((ast_label*)*side)->name);
3140 ast_goto_set_label(gt, ((ast_label*)*side));
3142 return (ast_expression*)gt;
3147 static bool parse_goto(parser_t *parser, ast_expression **out)
3149 ast_goto *gt = NULL;
3150 ast_expression *lbl;
3152 if (!parser_next(parser))
3155 if (parser->tok != TOKEN_IDENT) {
3156 ast_expression *expression;
3158 /* could be an expression i.e computed goto :-) */
3159 if (parser->tok != '(') {
3160 parseerror(parser, "expected label name after `goto`");
3164 /* failed to parse expression for goto */
3165 if (!(expression = parse_expression(parser, false, true)) ||
3166 !(*out = parse_goto_computed(parser, &expression))) {
3167 parseerror(parser, "invalid goto expression");
3169 ast_unref(expression);
3176 /* not computed goto */
3177 gt = ast_goto_new(parser_ctx(parser), parser_tokval(parser));
3178 lbl = parser_find_label(parser, gt->name);
3180 if (!ast_istype(lbl, ast_label)) {
3181 parseerror(parser, "internal error: label is not an ast_label");
3185 ast_goto_set_label(gt, (ast_label*)lbl);
3188 vec_push(parser->gotos, gt);
3190 if (!parser_next(parser) || parser->tok != ';') {
3191 parseerror(parser, "semicolon expected after goto label");
3194 if (!parser_next(parser)) {
3195 parseerror(parser, "parse error after goto");
3199 *out = (ast_expression*)gt;
3203 static bool parse_skipwhite(parser_t *parser)
3206 if (!parser_next(parser))
3208 } while (parser->tok == TOKEN_WHITE && parser->tok < TOKEN_ERROR);
3209 return parser->tok < TOKEN_ERROR;
3212 static bool parse_eol(parser_t *parser)
3214 if (!parse_skipwhite(parser))
3216 return parser->tok == TOKEN_EOL;
3219 static bool parse_pragma_do(parser_t *parser)
3221 if (!parser_next(parser) ||
3222 parser->tok != TOKEN_IDENT ||
3223 strcmp(parser_tokval(parser), "pragma"))
3225 parseerror(parser, "expected `pragma` keyword after `#`, got `%s`", parser_tokval(parser));
3228 if (!parse_skipwhite(parser) || parser->tok != TOKEN_IDENT) {
3229 parseerror(parser, "expected pragma, got `%s`", parser_tokval(parser));
3233 if (!strcmp(parser_tokval(parser), "noref")) {
3234 if (!parse_skipwhite(parser) || parser->tok != TOKEN_INTCONST) {
3235 parseerror(parser, "`noref` pragma requires an argument: 0 or 1");
3238 parser->noref = !!parser_token(parser)->constval.i;
3239 if (!parse_eol(parser)) {
3240 parseerror(parser, "parse error after `noref` pragma");
3246 (void)!parsewarning(parser, WARN_UNKNOWN_PRAGMAS, "ignoring #pragma %s", parser_tokval(parser));
3253 static bool parse_pragma(parser_t *parser)
3256 parser->lex->flags.preprocessing = true;
3257 parser->lex->flags.mergelines = true;
3258 rv = parse_pragma_do(parser);
3259 if (parser->tok != TOKEN_EOL) {
3260 parseerror(parser, "junk after pragma");
3263 parser->lex->flags.preprocessing = false;
3264 parser->lex->flags.mergelines = false;
3265 if (!parser_next(parser)) {
3266 parseerror(parser, "parse error after pragma");
3272 static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases)
3274 bool noref, is_static;
3276 uint32_t qflags = 0;
3277 ast_value *typevar = NULL;
3278 char *vstring = NULL;
3282 if (parser->tok == TOKEN_IDENT)
3283 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
3285 if (typevar || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
3287 /* local variable */
3289 parseerror(parser, "cannot declare a variable from here");
3292 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
3293 if (parsewarning(parser, WARN_EXTENSIONS, "missing 'local' keyword when declaring a local variable"))
3296 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL))
3300 else if (parse_qualifiers(parser, !!block, &cvq, &noref, &is_static, &qflags, &vstring))
3302 if (cvq == CV_WRONG)
3304 return parse_variable(parser, block, true, cvq, NULL, noref, is_static, qflags, vstring);
3306 else if (parser->tok == TOKEN_KEYWORD)
3308 if (!strcmp(parser_tokval(parser), "__builtin_debug_printtype"))
3313 if (!parser_next(parser)) {
3314 parseerror(parser, "parse error after __builtin_debug_printtype");
3318 if (parser->tok == TOKEN_IDENT && (tdef = parser_find_typedef(parser, parser_tokval(parser), 0)))
3320 ast_type_to_string((ast_expression*)tdef, ty, sizeof(ty));
3321 con_out("__builtin_debug_printtype: `%s`=`%s`\n", tdef->name, ty);
3322 if (!parser_next(parser)) {
3323 parseerror(parser, "parse error after __builtin_debug_printtype typename argument");
3329 if (!parse_statement(parser, block, out, allow_cases))
3332 con_out("__builtin_debug_printtype: got no output node\n");
3335 ast_type_to_string(*out, ty, sizeof(ty));
3336 con_out("__builtin_debug_printtype: `%s`\n", ty);
3341 else if (!strcmp(parser_tokval(parser), "return"))
3343 return parse_return(parser, block, out);
3345 else if (!strcmp(parser_tokval(parser), "if"))
3347 return parse_if(parser, block, out);
3349 else if (!strcmp(parser_tokval(parser), "while"))
3351 return parse_while(parser, block, out);
3353 else if (!strcmp(parser_tokval(parser), "do"))
3355 return parse_dowhile(parser, block, out);
3357 else if (!strcmp(parser_tokval(parser), "for"))
3359 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
3360 if (parsewarning(parser, WARN_EXTENSIONS, "for loops are not recognized in the original Quake C standard, to enable try an alternate standard --std=?"))
3363 return parse_for(parser, block, out);
3365 else if (!strcmp(parser_tokval(parser), "break"))
3367 return parse_break_continue(parser, block, out, false);
3369 else if (!strcmp(parser_tokval(parser), "continue"))
3371 return parse_break_continue(parser, block, out, true);
3373 else if (!strcmp(parser_tokval(parser), "switch"))
3375 return parse_switch(parser, block, out);
3377 else if (!strcmp(parser_tokval(parser), "case") ||
3378 !strcmp(parser_tokval(parser), "default"))
3381 parseerror(parser, "unexpected 'case' label");
3386 else if (!strcmp(parser_tokval(parser), "goto"))
3388 return parse_goto(parser, out);
3390 else if (!strcmp(parser_tokval(parser), "typedef"))
3392 if (!parser_next(parser)) {
3393 parseerror(parser, "expected type definition after 'typedef'");
3396 return parse_typedef(parser);
3398 parseerror(parser, "Unexpected keyword: `%s'", parser_tokval(parser));
3401 else if (parser->tok == '{')
3404 inner = parse_block(parser);
3407 *out = (ast_expression*)inner;
3410 else if (parser->tok == ':')
3414 if (!parser_next(parser)) {
3415 parseerror(parser, "expected label name");
3418 if (parser->tok != TOKEN_IDENT) {
3419 parseerror(parser, "label must be an identifier");
3422 label = (ast_label*)parser_find_label(parser, parser_tokval(parser));
3424 if (!label->undefined) {
3425 parseerror(parser, "label `%s` already defined", label->name);
3428 label->undefined = false;
3431 label = ast_label_new(parser_ctx(parser), parser_tokval(parser), false);
3432 vec_push(parser->labels, label);
3434 *out = (ast_expression*)label;
3435 if (!parser_next(parser)) {
3436 parseerror(parser, "parse error after label");
3439 for (i = 0; i < vec_size(parser->gotos); ++i) {
3440 if (!strcmp(parser->gotos[i]->name, label->name)) {
3441 ast_goto_set_label(parser->gotos[i], label);
3442 vec_remove(parser->gotos, i, 1);
3448 else if (parser->tok == ';')
3450 if (!parser_next(parser)) {
3451 parseerror(parser, "parse error after empty statement");
3458 lex_ctx_t ctx = parser_ctx(parser);
3459 ast_expression *exp = parse_expression(parser, false, false);
3463 if (!ast_side_effects(exp)) {
3464 if (compile_warning(ctx, WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
3471 static bool parse_enum(parser_t *parser)
3474 bool reverse = false;
3476 ast_value **values = NULL;
3477 ast_value *var = NULL;
3480 ast_expression *old;
3482 if (!parser_next(parser) || (parser->tok != '{' && parser->tok != ':')) {
3483 parseerror(parser, "expected `{` or `:` after `enum` keyword");
3487 /* enumeration attributes (can add more later) */
3488 if (parser->tok == ':') {
3489 if (!parser_next(parser) || parser->tok != TOKEN_IDENT){
3490 parseerror(parser, "expected `flag` or `reverse` for enumeration attribute");
3495 if (!strcmp(parser_tokval(parser), "flag")) {
3499 else if (!strcmp(parser_tokval(parser), "reverse")) {
3503 parseerror(parser, "invalid attribute `%s` for enumeration", parser_tokval(parser));
3507 if (!parser_next(parser) || parser->tok != '{') {
3508 parseerror(parser, "expected `{` after enum attribute ");
3514 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
3515 if (parser->tok == '}') {
3516 /* allow an empty enum */
3519 parseerror(parser, "expected identifier or `}`");
3523 old = parser_find_field(parser, parser_tokval(parser));
3525 old = parser_find_global(parser, parser_tokval(parser));
3527 parseerror(parser, "value `%s` has already been declared here: %s:%i",
3528 parser_tokval(parser), ast_ctx(old).file, ast_ctx(old).line);
3532 var = ast_value_new(parser_ctx(parser), parser_tokval(parser), TYPE_FLOAT);
3533 vec_push(values, var);
3534 var->cvq = CV_CONST;
3535 var->hasvalue = true;
3537 /* for flagged enumerations increment in POTs of TWO */
3538 var->constval.vfloat = (flag) ? (num *= 2) : (num ++);
3539 parser_addglobal(parser, var->name, (ast_expression*)var);
3541 if (!parser_next(parser)) {
3542 parseerror(parser, "expected `=`, `}` or comma after identifier");
3546 if (parser->tok == ',')
3548 if (parser->tok == '}')
3550 if (parser->tok != '=') {
3551 parseerror(parser, "expected `=`, `}` or comma after identifier");
3555 if (!parser_next(parser)) {
3556 parseerror(parser, "expected expression after `=`");
3560 /* We got a value! */
3561 old = parse_expression_leave(parser, true, false, false);
3562 asvalue = (ast_value*)old;
3563 if (!ast_istype(old, ast_value) || asvalue->cvq != CV_CONST || !asvalue->hasvalue) {
3564 compile_error(ast_ctx(var), "constant value or expression expected");
3567 num = (var->constval.vfloat = asvalue->constval.vfloat) + 1;
3569 if (parser->tok == '}')
3571 if (parser->tok != ',') {
3572 parseerror(parser, "expected `}` or comma after expression");
3577 /* patch them all (for reversed attribute) */
3580 for (i = 0; i < vec_size(values); i++)
3581 values[i]->constval.vfloat = vec_size(values) - i - 1;
3584 if (parser->tok != '}') {
3585 parseerror(parser, "internal error: breaking without `}`");
3589 if (!parser_next(parser) || parser->tok != ';') {
3590 parseerror(parser, "expected semicolon after enumeration");
3594 if (!parser_next(parser)) {
3595 parseerror(parser, "parse error after enumeration");
3607 static bool parse_block_into(parser_t *parser, ast_block *block)
3611 parser_enterblock(parser);
3613 if (!parser_next(parser)) { /* skip the '{' */
3614 parseerror(parser, "expected function body");
3618 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
3620 ast_expression *expr = NULL;
3621 if (parser->tok == '}')
3624 if (!parse_statement(parser, block, &expr, false)) {
3625 /* parseerror(parser, "parse error"); */
3631 if (!ast_block_add_expr(block, expr)) {
3638 if (parser->tok != '}') {
3641 (void)parser_next(parser);
3645 if (!parser_leaveblock(parser))
3647 return retval && !!block;
3650 static ast_block* parse_block(parser_t *parser)
3653 block = ast_block_new(parser_ctx(parser));
3656 if (!parse_block_into(parser, block)) {
3657 ast_block_delete(block);
3663 static bool parse_statement_or_block(parser_t *parser, ast_expression **out)
3665 if (parser->tok == '{') {
3666 *out = (ast_expression*)parse_block(parser);
3669 return parse_statement(parser, NULL, out, false);
3672 static bool create_vector_members(ast_value *var, ast_member **me)
3675 size_t len = strlen(var->name);
3677 for (i = 0; i < 3; ++i) {
3678 char *name = (char*)mem_a(len+3);
3679 memcpy(name, var->name, len);
3681 name[len+1] = 'x'+i;
3683 me[i] = ast_member_new(ast_ctx(var), (ast_expression*)var, i, name);
3692 do { ast_member_delete(me[--i]); } while(i);
3696 static bool parse_function_body(parser_t *parser, ast_value *var)
3698 ast_block *block = NULL;
3703 ast_expression *framenum = NULL;
3704 ast_expression *nextthink = NULL;
3705 /* None of the following have to be deleted */
3706 ast_expression *fld_think = NULL, *fld_nextthink = NULL, *fld_frame = NULL;
3707 ast_expression *gbl_time = NULL, *gbl_self = NULL;
3708 bool has_frame_think;
3712 has_frame_think = false;
3713 old = parser->function;
3715 if (var->expression.flags & AST_FLAG_ALIAS) {
3716 parseerror(parser, "function aliases cannot have bodies");
3720 if (vec_size(parser->gotos) || vec_size(parser->labels)) {
3721 parseerror(parser, "gotos/labels leaking");
3725 if (!OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC) {
3726 if (parsewarning(parser, WARN_VARIADIC_FUNCTION,
3727 "variadic function with implementation will not be able to access additional parameters (try -fvariadic-args)"))
3733 if (parser->tok == '[') {
3734 /* got a frame definition: [ framenum, nextthink ]
3735 * this translates to:
3736 * self.frame = framenum;
3737 * self.nextthink = time + 0.1;
3738 * self.think = nextthink;
3742 fld_think = parser_find_field(parser, "think");
3743 fld_nextthink = parser_find_field(parser, "nextthink");
3744 fld_frame = parser_find_field(parser, "frame");
3745 if (!fld_think || !fld_nextthink || !fld_frame) {
3746 parseerror(parser, "cannot use [frame,think] notation without the required fields");
3747 parseerror(parser, "please declare the following entityfields: `frame`, `think`, `nextthink`");
3750 gbl_time = parser_find_global(parser, "time");
3751 gbl_self = parser_find_global(parser, "self");
3752 if (!gbl_time || !gbl_self) {
3753 parseerror(parser, "cannot use [frame,think] notation without the required globals");
3754 parseerror(parser, "please declare the following globals: `time`, `self`");
3758 if (!parser_next(parser))
3761 framenum = parse_expression_leave(parser, true, false, false);
3763 parseerror(parser, "expected a framenumber constant in[frame,think] notation");
3766 if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->hasvalue) {
3767 ast_unref(framenum);
3768 parseerror(parser, "framenumber in [frame,think] notation must be a constant");
3772 if (parser->tok != ',') {
3773 ast_unref(framenum);
3774 parseerror(parser, "expected comma after frame number in [frame,think] notation");
3775 parseerror(parser, "Got a %i\n", parser->tok);
3779 if (!parser_next(parser)) {
3780 ast_unref(framenum);
3784 if (parser->tok == TOKEN_IDENT && !parser_find_var(parser, parser_tokval(parser)))
3786 /* qc allows the use of not-yet-declared functions here
3787 * - this automatically creates a prototype */
3788 ast_value *thinkfunc;
3789 ast_expression *functype = fld_think->next;
3791 thinkfunc = ast_value_new(parser_ctx(parser), parser_tokval(parser), functype->vtype);
3792 if (!thinkfunc) { /* || !ast_type_adopt(thinkfunc, functype)*/
3793 ast_unref(framenum);
3794 parseerror(parser, "failed to create implicit prototype for `%s`", parser_tokval(parser));
3797 ast_type_adopt(thinkfunc, functype);
3799 if (!parser_next(parser)) {
3800 ast_unref(framenum);
3801 ast_delete(thinkfunc);
3805 parser_addglobal(parser, thinkfunc->name, (ast_expression*)thinkfunc);
3807 nextthink = (ast_expression*)thinkfunc;
3810 nextthink = parse_expression_leave(parser, true, false, false);
3812 ast_unref(framenum);
3813 parseerror(parser, "expected a think-function in [frame,think] notation");
3818 if (!ast_istype(nextthink, ast_value)) {
3819 parseerror(parser, "think-function in [frame,think] notation must be a constant");
3823 if (retval && parser->tok != ']') {
3824 parseerror(parser, "expected closing `]` for [frame,think] notation");
3828 if (retval && !parser_next(parser)) {
3832 if (retval && parser->tok != '{') {
3833 parseerror(parser, "a function body has to be declared after a [frame,think] declaration");
3838 ast_unref(nextthink);
3839 ast_unref(framenum);
3843 has_frame_think = true;
3846 block = ast_block_new(parser_ctx(parser));
3848 parseerror(parser, "failed to allocate block");
3849 if (has_frame_think) {
3850 ast_unref(nextthink);
3851 ast_unref(framenum);
3856 if (has_frame_think) {
3858 ast_expression *self_frame;
3859 ast_expression *self_nextthink;
3860 ast_expression *self_think;
3861 ast_expression *time_plus_1;
3862 ast_store *store_frame;
3863 ast_store *store_nextthink;
3864 ast_store *store_think;
3866 ctx = parser_ctx(parser);
3867 self_frame = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_frame);
3868 self_nextthink = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_nextthink);
3869 self_think = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_think);
3871 time_plus_1 = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F,
3872 gbl_time, (ast_expression*)fold_constgen_float(parser->fold, 0.1));
3874 if (!self_frame || !self_nextthink || !self_think || !time_plus_1) {
3875 if (self_frame) ast_delete(self_frame);
3876 if (self_nextthink) ast_delete(self_nextthink);
3877 if (self_think) ast_delete(self_think);
3878 if (time_plus_1) ast_delete(time_plus_1);
3884 store_frame = ast_store_new(ctx, INSTR_STOREP_F, self_frame, framenum);
3885 store_nextthink = ast_store_new(ctx, INSTR_STOREP_F, self_nextthink, time_plus_1);
3886 store_think = ast_store_new(ctx, INSTR_STOREP_FNC, self_think, nextthink);
3889 ast_delete(self_frame);
3892 if (!store_nextthink) {
3893 ast_delete(self_nextthink);
3897 ast_delete(self_think);
3901 if (store_frame) ast_delete(store_frame);
3902 if (store_nextthink) ast_delete(store_nextthink);
3903 if (store_think) ast_delete(store_think);
3906 if (!ast_block_add_expr(block, (ast_expression*)store_frame) ||
3907 !ast_block_add_expr(block, (ast_expression*)store_nextthink) ||
3908 !ast_block_add_expr(block, (ast_expression*)store_think))
3915 parseerror(parser, "failed to generate code for [frame,think]");
3916 ast_unref(nextthink);
3917 ast_unref(framenum);
3923 if (var->hasvalue) {
3924 parseerror(parser, "function `%s` declared with multiple bodies", var->name);
3925 ast_block_delete(block);
3929 func = ast_function_new(ast_ctx(var), var->name, var);
3931 parseerror(parser, "failed to allocate function for `%s`", var->name);
3932 ast_block_delete(block);
3935 vec_push(parser->functions, func);
3937 parser_enterblock(parser);
3939 for (parami = 0; parami < vec_size(var->expression.params); ++parami) {
3941 ast_value *param = var->expression.params[parami];
3944 if (param->expression.vtype != TYPE_VECTOR &&
3945 (param->expression.vtype != TYPE_FIELD ||
3946 param->expression.next->vtype != TYPE_VECTOR))
3951 if (!create_vector_members(param, me)) {
3952 ast_block_delete(block);
3956 for (e = 0; e < 3; ++e) {
3957 parser_addlocal(parser, me[e]->name, (ast_expression*)me[e]);
3958 ast_block_collect(block, (ast_expression*)me[e]);
3962 if (var->argcounter) {
3963 ast_value *argc = ast_value_new(ast_ctx(var), var->argcounter, TYPE_FLOAT);
3964 parser_addlocal(parser, argc->name, (ast_expression*)argc);
3968 if (OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC) {
3970 ast_value *varargs = ast_value_new(ast_ctx(var), "reserved:va_args", TYPE_ARRAY);
3971 varargs->expression.flags |= AST_FLAG_IS_VARARG;
3972 varargs->expression.next = (ast_expression*)ast_value_new(ast_ctx(var), NULL, TYPE_VECTOR);
3973 varargs->expression.count = 0;
3974 util_snprintf(name, sizeof(name), "%s##va##SET", var->name);
3975 if (!parser_create_array_setter_proto(parser, varargs, name)) {
3976 ast_delete(varargs);
3977 ast_block_delete(block);
3980 util_snprintf(name, sizeof(name), "%s##va##GET", var->name);
3981 if (!parser_create_array_getter_proto(parser, varargs, varargs->expression.next, name)) {
3982 ast_delete(varargs);
3983 ast_block_delete(block);
3986 func->varargs = varargs;
3987 func->fixedparams = (ast_value*)fold_constgen_float(parser->fold, vec_size(var->expression.params));
3990 parser->function = func;
3991 if (!parse_block_into(parser, block)) {
3992 ast_block_delete(block);
3996 vec_push(func->blocks, block);
3999 parser->function = old;
4000 if (!parser_leaveblock(parser))
4002 if (vec_size(parser->variables) != PARSER_HT_LOCALS) {
4003 parseerror(parser, "internal error: local scopes left");
4007 if (parser->tok == ';')
4008 return parser_next(parser);
4009 else if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
4010 parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)");
4014 (void)!parser_leaveblock(parser);
4015 vec_pop(parser->functions);
4016 ast_function_delete(func);
4017 var->constval.vfunc = NULL;
4020 parser->function = old;
4024 static ast_expression *array_accessor_split(
4029 ast_expression *left,
4030 ast_expression *right
4036 lex_ctx_t ctx = ast_ctx(array);
4038 if (!left || !right) {
4039 if (left) ast_delete(left);
4040 if (right) ast_delete(right);
4044 cmp = ast_binary_new(ctx, INSTR_LT,
4045 (ast_expression*)index,
4046 (ast_expression*)fold_constgen_float(parser->fold, middle));
4050 parseerror(parser, "internal error: failed to create comparison for array setter");
4054 ifthen = ast_ifthen_new(ctx, (ast_expression*)cmp, left, right);
4056 ast_delete(cmp); /* will delete left and right */
4057 parseerror(parser, "internal error: failed to create conditional jump for array setter");
4061 return (ast_expression*)ifthen;
4064 static ast_expression *array_setter_node(parser_t *parser, ast_value *array, ast_value *index, ast_value *value, size_t from, size_t afterend)
4066 lex_ctx_t ctx = ast_ctx(array);
4068 if (from+1 == afterend) {
4069 /* set this value */
4072 ast_array_index *subscript;
4074 int assignop = type_store_instr[value->expression.vtype];
4076 if (value->expression.vtype == TYPE_FIELD && value->expression.next->vtype == TYPE_VECTOR)
4077 assignop = INSTR_STORE_V;
4079 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)fold_constgen_float(parser->fold, from));
4083 st = ast_store_new(ctx, assignop, (ast_expression*)subscript, (ast_expression*)value);
4085 ast_delete(subscript);
4089 block = ast_block_new(ctx);
4095 if (!ast_block_add_expr(block, (ast_expression*)st)) {
4100 ret = ast_return_new(ctx, NULL);
4106 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
4111 return (ast_expression*)block;
4113 ast_expression *left, *right;
4114 size_t diff = afterend - from;
4115 size_t middle = from + diff/2;
4116 left = array_setter_node(parser, array, index, value, from, middle);
4117 right = array_setter_node(parser, array, index, value, middle, afterend);
4118 return array_accessor_split(parser, array, index, middle, left, right);
4122 static ast_expression *array_field_setter_node(
4131 lex_ctx_t ctx = ast_ctx(array);
4133 if (from+1 == afterend) {
4134 /* set this value */
4137 ast_entfield *entfield;
4138 ast_array_index *subscript;
4140 int assignop = type_storep_instr[value->expression.vtype];
4142 if (value->expression.vtype == TYPE_FIELD && value->expression.next->vtype == TYPE_VECTOR)
4143 assignop = INSTR_STOREP_V;
4145 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)fold_constgen_float(parser->fold, from));
4149 subscript->expression.next = ast_type_copy(ast_ctx(subscript), (ast_expression*)subscript);
4150 subscript->expression.vtype = TYPE_FIELD;
4152 entfield = ast_entfield_new_force(ctx,
4153 (ast_expression*)entity,
4154 (ast_expression*)subscript,
4155 (ast_expression*)subscript);
4157 ast_delete(subscript);
4161 st = ast_store_new(ctx, assignop, (ast_expression*)entfield, (ast_expression*)value);
4163 ast_delete(entfield);
4167 block = ast_block_new(ctx);
4173 if (!ast_block_add_expr(block, (ast_expression*)st)) {
4178 ret = ast_return_new(ctx, NULL);
4184 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
4189 return (ast_expression*)block;
4191 ast_expression *left, *right;
4192 size_t diff = afterend - from;
4193 size_t middle = from + diff/2;
4194 left = array_field_setter_node(parser, array, entity, index, value, from, middle);
4195 right = array_field_setter_node(parser, array, entity, index, value, middle, afterend);
4196 return array_accessor_split(parser, array, index, middle, left, right);
4200 static ast_expression *array_getter_node(parser_t *parser, ast_value *array, ast_value *index, size_t from, size_t afterend)
4202 lex_ctx_t ctx = ast_ctx(array);
4204 if (from+1 == afterend) {
4206 ast_array_index *subscript;
4208 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)fold_constgen_float(parser->fold, from));
4212 ret = ast_return_new(ctx, (ast_expression*)subscript);
4214 ast_delete(subscript);
4218 return (ast_expression*)ret;
4220 ast_expression *left, *right;
4221 size_t diff = afterend - from;
4222 size_t middle = from + diff/2;
4223 left = array_getter_node(parser, array, index, from, middle);
4224 right = array_getter_node(parser, array, index, middle, afterend);
4225 return array_accessor_split(parser, array, index, middle, left, right);
4229 static bool parser_create_array_accessor(parser_t *parser, ast_value *array, const char *funcname, ast_value **out)
4231 ast_function *func = NULL;
4232 ast_value *fval = NULL;
4233 ast_block *body = NULL;
4235 fval = ast_value_new(ast_ctx(array), funcname, TYPE_FUNCTION);
4237 parseerror(parser, "failed to create accessor function value");
4241 func = ast_function_new(ast_ctx(array), funcname, fval);
4244 parseerror(parser, "failed to create accessor function node");
4248 body = ast_block_new(ast_ctx(array));
4250 parseerror(parser, "failed to create block for array accessor");
4256 vec_push(func->blocks, body);
4259 vec_push(parser->accessors, fval);
4264 static ast_value* parser_create_array_setter_proto(parser_t *parser, ast_value *array, const char *funcname)
4266 ast_value *index = NULL;
4267 ast_value *value = NULL;
4271 if (!ast_istype(array->expression.next, ast_value)) {
4272 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4276 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4278 func = fval->constval.vfunc;
4279 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
4281 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4282 value = ast_value_copy((ast_value*)array->expression.next);
4284 if (!index || !value) {
4285 parseerror(parser, "failed to create locals for array accessor");
4288 (void)!ast_value_set_name(value, "value"); /* not important */
4289 vec_push(fval->expression.params, index);
4290 vec_push(fval->expression.params, value);
4292 array->setter = fval;
4295 if (index) ast_delete(index);
4296 if (value) ast_delete(value);
4302 static bool parser_create_array_setter_impl(parser_t *parser, ast_value *array)
4304 ast_expression *root = NULL;
4305 root = array_setter_node(parser, array,
4306 array->setter->expression.params[0],
4307 array->setter->expression.params[1],
4308 0, array->expression.count);
4310 parseerror(parser, "failed to build accessor search tree");
4313 if (!ast_block_add_expr(array->setter->constval.vfunc->blocks[0], root)) {
4320 static bool parser_create_array_setter(parser_t *parser, ast_value *array, const char *funcname)
4322 if (!parser_create_array_setter_proto(parser, array, funcname))
4324 return parser_create_array_setter_impl(parser, array);
4327 static bool parser_create_array_field_setter(parser_t *parser, ast_value *array, const char *funcname)
4329 ast_expression *root = NULL;
4330 ast_value *entity = NULL;
4331 ast_value *index = NULL;
4332 ast_value *value = NULL;
4336 if (!ast_istype(array->expression.next, ast_value)) {
4337 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4341 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4343 func = fval->constval.vfunc;
4344 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
4346 entity = ast_value_new(ast_ctx(array), "entity", TYPE_ENTITY);
4347 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4348 value = ast_value_copy((ast_value*)array->expression.next);
4349 if (!entity || !index || !value) {
4350 parseerror(parser, "failed to create locals for array accessor");
4353 (void)!ast_value_set_name(value, "value"); /* not important */
4354 vec_push(fval->expression.params, entity);
4355 vec_push(fval->expression.params, index);
4356 vec_push(fval->expression.params, value);
4358 root = array_field_setter_node(parser, array, entity, index, value, 0, array->expression.count);
4360 parseerror(parser, "failed to build accessor search tree");
4364 array->setter = fval;
4365 return ast_block_add_expr(func->blocks[0], root);
4367 if (entity) ast_delete(entity);
4368 if (index) ast_delete(index);
4369 if (value) ast_delete(value);
4370 if (root) ast_delete(root);
4376 static ast_value* parser_create_array_getter_proto(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
4378 ast_value *index = NULL;
4382 /* NOTE: checking array->expression.next rather than elemtype since
4383 * for fields elemtype is a temporary fieldtype.
4385 if (!ast_istype(array->expression.next, ast_value)) {
4386 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4390 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4392 func = fval->constval.vfunc;
4393 fval->expression.next = ast_type_copy(ast_ctx(array), elemtype);
4395 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4398 parseerror(parser, "failed to create locals for array accessor");
4401 vec_push(fval->expression.params, index);
4403 array->getter = fval;
4406 if (index) ast_delete(index);
4412 static bool parser_create_array_getter_impl(parser_t *parser, ast_value *array)
4414 ast_expression *root = NULL;
4416 root = array_getter_node(parser, array, array->getter->expression.params[0], 0, array->expression.count);
4418 parseerror(parser, "failed to build accessor search tree");
4421 if (!ast_block_add_expr(array->getter->constval.vfunc->blocks[0], root)) {
4428 static bool parser_create_array_getter(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
4430 if (!parser_create_array_getter_proto(parser, array, elemtype, funcname))
4432 return parser_create_array_getter_impl(parser, array);
4435 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
4436 static ast_value *parse_parameter_list(parser_t *parser, ast_value *var)
4444 bool variadic = false;
4445 ast_value *varparam = NULL;
4446 char *argcounter = NULL;
4448 ctx = parser_ctx(parser);
4450 /* for the sake of less code we parse-in in this function */
4451 if (!parser_next(parser)) {
4453 parseerror(parser, "expected parameter list");
4459 /* parse variables until we hit a closing paren */
4460 while (parser->tok != ')') {
4462 /* there must be commas between them */
4463 if (parser->tok != ',') {
4464 parseerror(parser, "expected comma or end of parameter list");
4467 if (!parser_next(parser)) {
4468 parseerror(parser, "expected parameter");
4474 if (parser->tok == TOKEN_DOTS) {
4475 /* '...' indicates a varargs function */
4477 if (!parser_next(parser) || (parser->tok != ')' && parser->tok != TOKEN_IDENT)) {
4478 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4481 if (parser->tok == TOKEN_IDENT) {
4482 argcounter = util_strdup(parser_tokval(parser));
4483 if (!parser_next(parser) || parser->tok != ')') {
4484 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4491 /* for anything else just parse a typename */
4492 param = parse_typename(parser, NULL, NULL);
4495 vec_push(params, param);
4496 if (param->expression.vtype >= TYPE_VARIANT) {
4497 char tname[1024]; /* typename is reserved in C++ */
4498 ast_type_to_string((ast_expression*)param, tname, sizeof(tname));
4499 parseerror(parser, "type not supported as part of a parameter list: %s", tname);
4502 /* type-restricted varargs */
4503 if (parser->tok == TOKEN_DOTS) {
4505 varparam = vec_last(params);
4507 if (!parser_next(parser) || (parser->tok != ')' && parser->tok != TOKEN_IDENT)) {
4508 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4511 if (parser->tok == TOKEN_IDENT) {
4512 argcounter = util_strdup(parser_tokval(parser));
4513 if (!parser_next(parser) || parser->tok != ')') {
4514 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4522 if (vec_size(params) == 1 && params[0]->expression.vtype == TYPE_VOID)
4526 if (vec_size(params) > 8 && OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
4527 (void)!parsewarning(parser, WARN_EXTENSIONS, "more than 8 parameters are not supported by this standard");
4530 if (!parser_next(parser)) {
4531 parseerror(parser, "parse error after typename");
4535 /* now turn 'var' into a function type */
4536 fval = ast_value_new(ctx, "<type()>", TYPE_FUNCTION);
4537 fval->expression.next = (ast_expression*)var;
4539 fval->expression.flags |= AST_FLAG_VARIADIC;
4542 var->expression.params = params;
4543 var->expression.varparam = (ast_expression*)varparam;
4544 var->argcounter = argcounter;
4553 ast_delete(varparam);
4555 for (i = 0; i < vec_size(params); ++i)
4556 ast_delete(params[i]);
4561 static ast_value *parse_arraysize(parser_t *parser, ast_value *var)
4563 ast_expression *cexp;
4564 ast_value *cval, *tmp;
4567 ctx = parser_ctx(parser);
4569 if (!parser_next(parser)) {
4571 parseerror(parser, "expected array-size");
4575 if (parser->tok != ']') {
4576 cexp = parse_expression_leave(parser, true, false, false);
4578 if (!cexp || !ast_istype(cexp, ast_value)) {
4582 parseerror(parser, "expected array-size as constant positive integer");
4585 cval = (ast_value*)cexp;
4592 tmp = ast_value_new(ctx, "<type[]>", TYPE_ARRAY);
4593 tmp->expression.next = (ast_expression*)var;
4597 if (cval->expression.vtype == TYPE_INTEGER)
4598 tmp->expression.count = cval->constval.vint;
4599 else if (cval->expression.vtype == TYPE_FLOAT)
4600 tmp->expression.count = cval->constval.vfloat;
4604 parseerror(parser, "array-size must be a positive integer constant");
4610 var->expression.count = -1;
4611 var->expression.flags |= AST_FLAG_ARRAY_INIT;
4614 if (parser->tok != ']') {
4616 parseerror(parser, "expected ']' after array-size");
4619 if (!parser_next(parser)) {
4621 parseerror(parser, "error after parsing array size");
4627 /* Parse a complete typename.
4628 * for single-variables (ie. function parameters or typedefs) storebase should be NULL
4629 * but when parsing variables separated by comma
4630 * 'storebase' should point to where the base-type should be kept.
4631 * The base type makes up every bit of type information which comes *before* the
4634 * The following will be parsed in its entirety:
4636 * The 'basetype' in this case is 'void()'
4637 * and if there's a comma after it, say:
4639 * then the type-information 'void()' can be stored in 'storebase'
4641 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef)
4643 ast_value *var, *tmp;
4646 const char *name = NULL;
4647 bool isfield = false;
4648 bool wasarray = false;
4649 size_t morefields = 0;
4651 ctx = parser_ctx(parser);
4653 /* types may start with a dot */
4654 if (parser->tok == '.') {
4656 /* if we parsed a dot we need a typename now */
4657 if (!parser_next(parser)) {
4658 parseerror(parser, "expected typename for field definition");
4662 /* Further dots are handled seperately because they won't be part of the
4665 while (parser->tok == '.') {
4667 if (!parser_next(parser)) {
4668 parseerror(parser, "expected typename for field definition");
4673 if (parser->tok == TOKEN_IDENT)
4674 cached_typedef = parser_find_typedef(parser, parser_tokval(parser), 0);
4675 if (!cached_typedef && parser->tok != TOKEN_TYPENAME) {
4676 parseerror(parser, "expected typename");
4680 /* generate the basic type value */
4681 if (cached_typedef) {
4682 var = ast_value_copy(cached_typedef);
4683 ast_value_set_name(var, "<type(from_def)>");
4685 var = ast_value_new(ctx, "<type>", parser_token(parser)->constval.t);
4687 for (; morefields; --morefields) {
4688 tmp = ast_value_new(ctx, "<.type>", TYPE_FIELD);
4689 tmp->expression.next = (ast_expression*)var;
4693 /* do not yet turn into a field - remember:
4694 * .void() foo; is a field too
4695 * .void()() foo; is a function
4699 if (!parser_next(parser)) {
4701 parseerror(parser, "parse error after typename");
4705 /* an opening paren now starts the parameter-list of a function
4706 * this is where original-QC has parameter lists.
4707 * We allow a single parameter list here.
4708 * Much like fteqcc we don't allow `float()() x`
4710 if (parser->tok == '(') {
4711 var = parse_parameter_list(parser, var);
4716 /* store the base if requested */
4718 *storebase = ast_value_copy(var);
4720 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
4721 tmp->expression.next = (ast_expression*)*storebase;
4726 /* there may be a name now */
4727 if (parser->tok == TOKEN_IDENT) {
4728 name = util_strdup(parser_tokval(parser));
4730 if (!parser_next(parser)) {
4733 parseerror(parser, "error after variable or field declaration");
4738 /* now this may be an array */
4739 if (parser->tok == '[') {
4741 var = parse_arraysize(parser, var);
4743 if (name) mem_d(name);
4748 /* This is the point where we can turn it into a field */
4750 /* turn it into a field if desired */
4751 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
4752 tmp->expression.next = (ast_expression*)var;
4756 /* now there may be function parens again */
4757 if (parser->tok == '(' && OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
4758 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4759 if (parser->tok == '(' && wasarray)
4760 parseerror(parser, "arrays as part of a return type is not supported");
4761 while (parser->tok == '(') {
4762 var = parse_parameter_list(parser, var);
4764 if (name) mem_d(name);
4769 /* finally name it */
4771 if (!ast_value_set_name(var, name)) {
4774 parseerror(parser, "internal error: failed to set name");
4777 /* free the name, ast_value_set_name duplicates */
4784 static bool parse_typedef(parser_t *parser)
4786 ast_value *typevar, *oldtype;
4787 ast_expression *old;
4789 typevar = parse_typename(parser, NULL, NULL);
4794 if ( (old = parser_find_var(parser, typevar->name)) ) {
4795 parseerror(parser, "cannot define a type with the same name as a variable: %s\n"
4796 " -> `%s` has been declared here: %s:%i",
4797 typevar->name, ast_ctx(old).file, ast_ctx(old).line);
4798 ast_delete(typevar);
4802 if ( (oldtype = parser_find_typedef(parser, typevar->name, vec_last(parser->_blocktypedefs))) ) {
4803 parseerror(parser, "type `%s` has already been declared here: %s:%i",
4804 typevar->name, ast_ctx(oldtype).file, ast_ctx(oldtype).line);
4805 ast_delete(typevar);
4809 vec_push(parser->_typedefs, typevar);
4810 util_htset(vec_last(parser->typedefs), typevar->name, typevar);
4812 if (parser->tok != ';') {
4813 parseerror(parser, "expected semicolon after typedef");
4816 if (!parser_next(parser)) {
4817 parseerror(parser, "parse error after typedef");
4824 static const char *cvq_to_str(int cvq) {
4826 case CV_NONE: return "none";
4827 case CV_VAR: return "`var`";
4828 case CV_CONST: return "`const`";
4829 default: return "<INVALID>";
4833 static bool parser_check_qualifiers(parser_t *parser, const ast_value *var, const ast_value *proto)
4836 if (proto->cvq != var->cvq) {
4837 if (!(proto->cvq == CV_CONST && var->cvq == CV_NONE &&
4838 !OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
4839 parser->tok == '='))
4841 return !parsewarning(parser, WARN_DIFFERENT_QUALIFIERS,
4842 "`%s` declared with different qualifiers: %s\n"
4843 " -> previous declaration here: %s:%i uses %s",
4844 var->name, cvq_to_str(var->cvq),
4845 ast_ctx(proto).file, ast_ctx(proto).line,
4846 cvq_to_str(proto->cvq));
4849 av = (var ->expression.flags & AST_FLAG_NORETURN);
4850 ao = (proto->expression.flags & AST_FLAG_NORETURN);
4852 return !parsewarning(parser, WARN_DIFFERENT_ATTRIBUTES,
4853 "`%s` declared with different attributes%s\n"
4854 " -> previous declaration here: %s:%i",
4855 var->name, (av ? ": noreturn" : ""),
4856 ast_ctx(proto).file, ast_ctx(proto).line,
4857 (ao ? ": noreturn" : ""));
4862 static bool create_array_accessors(parser_t *parser, ast_value *var)
4865 util_snprintf(name, sizeof(name), "%s##SET", var->name);
4866 if (!parser_create_array_setter(parser, var, name))
4868 util_snprintf(name, sizeof(name), "%s##GET", var->name);
4869 if (!parser_create_array_getter(parser, var, var->expression.next, name))
4874 static bool parse_array(parser_t *parser, ast_value *array)
4877 if (array->initlist) {
4878 parseerror(parser, "array already initialized elsewhere");
4881 if (!parser_next(parser)) {
4882 parseerror(parser, "parse error in array initializer");
4886 while (parser->tok != '}') {
4887 ast_value *v = (ast_value*)parse_expression_leave(parser, true, false, false);
4890 if (!ast_istype(v, ast_value) || !v->hasvalue || v->cvq != CV_CONST) {
4892 parseerror(parser, "initializing element must be a compile time constant");
4895 vec_push(array->initlist, v->constval);
4896 if (v->expression.vtype == TYPE_STRING) {
4897 array->initlist[i].vstring = util_strdupe(array->initlist[i].vstring);
4901 if (parser->tok == '}')
4903 if (parser->tok != ',' || !parser_next(parser)) {
4904 parseerror(parser, "expected comma or '}' in element list");
4908 if (!parser_next(parser) || parser->tok != ';') {
4909 parseerror(parser, "expected semicolon after initializer, got %s");
4913 if (!parser_next(parser)) {
4914 parseerror(parser, "parse error after initializer");
4919 if (array->expression.flags & AST_FLAG_ARRAY_INIT) {
4920 if (array->expression.count != (size_t)-1) {
4921 parseerror(parser, "array `%s' has already been initialized with %u elements",
4922 array->name, (unsigned)array->expression.count);
4924 array->expression.count = vec_size(array->initlist);
4925 if (!create_array_accessors(parser, array))
4931 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)
4935 ast_expression *old;
4939 ast_value *basetype = NULL;
4941 bool isparam = false;
4942 bool isvector = false;
4943 bool cleanvar = true;
4944 bool wasarray = false;
4946 ast_member *me[3] = { NULL, NULL, NULL };
4948 if (!localblock && is_static)
4949 parseerror(parser, "`static` qualifier is not supported in global scope");
4951 /* get the first complete variable */
4952 var = parse_typename(parser, &basetype, cached_typedef);
4955 ast_delete(basetype);
4963 /* Part 0: finish the type */
4964 if (parser->tok == '(') {
4965 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
4966 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4967 var = parse_parameter_list(parser, var);
4973 /* we only allow 1-dimensional arrays */
4974 if (parser->tok == '[') {
4976 var = parse_arraysize(parser, var);
4982 if (parser->tok == '(' && wasarray) {
4983 parseerror(parser, "arrays as part of a return type is not supported");
4984 /* we'll still parse the type completely for now */
4986 /* for functions returning functions */
4987 while (parser->tok == '(') {
4988 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
4989 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4990 var = parse_parameter_list(parser, var);
4997 var->cvq = qualifier;
4998 var->expression.flags |= qflags;
5001 * store the vstring back to var for alias and
5002 * deprecation messages.
5004 if (var->expression.flags & AST_FLAG_DEPRECATED ||
5005 var->expression.flags & AST_FLAG_ALIAS)
5006 var->desc = vstring;
5009 * check for validity: (end_sys_..., multiple-definitions, prototypes, ...)
5010 * Also: if there was a prototype, `var` will be deleted and set to `proto` which
5011 * is then filled with the previous definition and the parameter-names replaced.
5013 if (!strcmp(var->name, "nil")) {
5014 if (OPTS_FLAG(UNTYPED_NIL)) {
5015 if (!localblock || !OPTS_FLAG(PERMISSIVE))
5016 parseerror(parser, "name `nil` not allowed (try -fpermissive)");
5018 (void)!parsewarning(parser, WARN_RESERVED_NAMES, "variable name `nil` is reserved");
5021 /* Deal with end_sys_ vars */
5023 if (!strcmp(var->name, "end_sys_globals")) {
5025 parser->crc_globals = vec_size(parser->globals);
5028 else if (!strcmp(var->name, "end_sys_fields")) {
5030 parser->crc_fields = vec_size(parser->fields);
5033 if (was_end && var->expression.vtype == TYPE_FIELD) {
5034 if (parsewarning(parser, WARN_END_SYS_FIELDS,
5035 "global '%s' hint should not be a field",
5036 parser_tokval(parser)))
5043 if (!nofields && var->expression.vtype == TYPE_FIELD)
5045 /* deal with field declarations */
5046 old = parser_find_field(parser, var->name);
5048 if (parsewarning(parser, WARN_FIELD_REDECLARED, "field `%s` already declared here: %s:%i",
5049 var->name, ast_ctx(old).file, (int)ast_ctx(old).line))
5058 parseerror(parser, "field `%s` already declared here: %s:%i",
5059 var->name, ast_ctx(old).file, ast_ctx(old).line);
5064 if ((OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC || OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_FTEQCC) &&
5065 (old = parser_find_global(parser, var->name)))
5067 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
5068 parseerror(parser, "field `%s` already declared here: %s:%i",
5069 var->name, ast_ctx(old).file, ast_ctx(old).line);
5076 /* deal with other globals */
5077 old = parser_find_global(parser, var->name);
5078 if (old && var->expression.vtype == TYPE_FUNCTION && old->vtype == TYPE_FUNCTION)
5080 /* This is a function which had a prototype */
5081 if (!ast_istype(old, ast_value)) {
5082 parseerror(parser, "internal error: prototype is not an ast_value");
5086 proto = (ast_value*)old;
5087 proto->desc = var->desc;
5088 if (!ast_compare_type((ast_expression*)proto, (ast_expression*)var)) {
5089 parseerror(parser, "conflicting types for `%s`, previous declaration was here: %s:%i",
5091 ast_ctx(proto).file, ast_ctx(proto).line);
5095 /* we need the new parameter-names */
5096 for (i = 0; i < vec_size(proto->expression.params); ++i)
5097 ast_value_set_name(proto->expression.params[i], var->expression.params[i]->name);
5098 if (!parser_check_qualifiers(parser, var, proto)) {
5105 proto->expression.flags |= var->expression.flags;
5113 if (parsewarning(parser, WARN_DOUBLE_DECLARATION,
5114 "global `%s` already declared here: %s:%i",
5115 var->name, ast_ctx(old).file, ast_ctx(old).line))
5120 proto = (ast_value*)old;
5121 if (!ast_istype(old, ast_value)) {
5122 parseerror(parser, "internal error: not an ast_value");
5127 if (!parser_check_qualifiers(parser, var, proto)) {
5132 proto->expression.flags |= var->expression.flags;
5136 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC &&
5137 (old = parser_find_field(parser, var->name)))
5139 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
5140 parseerror(parser, "global `%s` already declared here: %s:%i",
5141 var->name, ast_ctx(old).file, ast_ctx(old).line);
5148 else /* it's not a global */
5150 old = parser_find_local(parser, var->name, vec_size(parser->variables)-1, &isparam);
5151 if (old && !isparam) {
5152 parseerror(parser, "local `%s` already declared here: %s:%i",
5153 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
5157 old = parser_find_local(parser, var->name, 0, &isparam);
5158 if (old && isparam) {
5159 if (parsewarning(parser, WARN_LOCAL_SHADOWS,
5160 "local `%s` is shadowing a parameter", var->name))
5162 parseerror(parser, "local `%s` already declared here: %s:%i",
5163 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
5167 if (OPTS_OPTION_U32(OPTION_STANDARD) != COMPILER_GMQCC) {
5175 /* in a noref section we simply bump the usecount */
5176 if (noref || parser->noref)
5180 * Create the global/local, and deal with vector types.
5183 if (var->expression.vtype == TYPE_VECTOR)
5185 else if (var->expression.vtype == TYPE_FIELD &&
5186 var->expression.next->vtype == TYPE_VECTOR)
5190 if (!create_vector_members(var, me)) {
5197 /* deal with global variables, fields, functions */
5198 if (!nofields && var->expression.vtype == TYPE_FIELD && parser->tok != '=') {
5199 var->isfield = true;
5200 vec_push(parser->fields, (ast_expression*)var);
5201 util_htset(parser->htfields, var->name, var);
5203 for (i = 0; i < 3; ++i) {
5204 vec_push(parser->fields, (ast_expression*)me[i]);
5205 util_htset(parser->htfields, me[i]->name, me[i]);
5210 if (!(var->expression.flags & AST_FLAG_ALIAS)) {
5211 parser_addglobal(parser, var->name, (ast_expression*)var);
5213 for (i = 0; i < 3; ++i) {
5214 parser_addglobal(parser, me[i]->name, (ast_expression*)me[i]);
5218 ast_expression *find = parser_find_global(parser, var->desc);
5221 compile_error(parser_ctx(parser), "undeclared variable `%s` for alias `%s`", var->desc, var->name);
5225 if (var->expression.vtype != find->vtype) {
5229 ast_type_to_string(find, ty1, sizeof(ty1));
5230 ast_type_to_string((ast_expression*)var, ty2, sizeof(ty2));
5232 compile_error(parser_ctx(parser), "incompatible types `%s` and `%s` for alias `%s`",
5239 * add alias to aliases table and to corrector
5240 * so corrections can apply for aliases as well.
5242 util_htset(parser->aliases, var->name, find);
5245 * add to corrector so corrections can work
5246 * even for aliases too.
5249 vec_last(parser->correct_variables),
5250 &vec_last(parser->correct_variables_score),
5254 /* generate aliases for vector components */
5258 util_asprintf(&buffer[0], "%s_x", var->desc);
5259 util_asprintf(&buffer[1], "%s_y", var->desc);
5260 util_asprintf(&buffer[2], "%s_z", var->desc);
5262 util_htset(parser->aliases, me[0]->name, parser_find_global(parser, buffer[0]));
5263 util_htset(parser->aliases, me[1]->name, parser_find_global(parser, buffer[1]));
5264 util_htset(parser->aliases, me[2]->name, parser_find_global(parser, buffer[2]));
5271 * add to corrector so corrections can work
5272 * even for aliases too.
5275 vec_last(parser->correct_variables),
5276 &vec_last(parser->correct_variables_score),
5280 vec_last(parser->correct_variables),
5281 &vec_last(parser->correct_variables_score),
5285 vec_last(parser->correct_variables),
5286 &vec_last(parser->correct_variables_score),
5294 /* a static adds itself to be generated like any other global
5295 * but is added to the local namespace instead
5297 char *defname = NULL;
5298 size_t prefix_len, ln;
5300 ln = strlen(parser->function->name);
5301 vec_append(defname, ln, parser->function->name);
5303 vec_append(defname, 2, "::");
5304 /* remember the length up to here */
5305 prefix_len = vec_size(defname);
5307 /* Add it to the local scope */
5308 util_htset(vec_last(parser->variables), var->name, (void*)var);
5312 vec_last(parser->correct_variables),
5313 &vec_last(parser->correct_variables_score),
5317 /* now rename the global */
5318 ln = strlen(var->name);
5319 vec_append(defname, ln, var->name);
5320 ast_value_set_name(var, defname);
5322 /* push it to the to-be-generated globals */
5323 vec_push(parser->globals, (ast_expression*)var);
5325 /* same game for the vector members */
5327 for (i = 0; i < 3; ++i) {
5328 util_htset(vec_last(parser->variables), me[i]->name, (void*)(me[i]));
5332 vec_last(parser->correct_variables),
5333 &vec_last(parser->correct_variables_score),
5337 vec_shrinkto(defname, prefix_len);
5338 ln = strlen(me[i]->name);
5339 vec_append(defname, ln, me[i]->name);
5340 ast_member_set_name(me[i], defname);
5342 vec_push(parser->globals, (ast_expression*)me[i]);
5347 vec_push(localblock->locals, var);
5348 parser_addlocal(parser, var->name, (ast_expression*)var);
5350 for (i = 0; i < 3; ++i) {
5351 parser_addlocal(parser, me[i]->name, (ast_expression*)me[i]);
5352 ast_block_collect(localblock, (ast_expression*)me[i]);
5358 me[0] = me[1] = me[2] = NULL;
5363 if (var->expression.vtype == TYPE_ARRAY) {
5364 if (var->expression.count != (size_t)-1) {
5365 if (!create_array_accessors(parser, var))
5369 else if (!localblock && !nofields &&
5370 var->expression.vtype == TYPE_FIELD &&
5371 var->expression.next->vtype == TYPE_ARRAY)
5374 ast_expression *telem;
5376 ast_value *array = (ast_value*)var->expression.next;
5378 if (!ast_istype(var->expression.next, ast_value)) {
5379 parseerror(parser, "internal error: field element type must be an ast_value");
5383 util_snprintf(name, sizeof(name), "%s##SETF", var->name);
5384 if (!parser_create_array_field_setter(parser, array, name))
5387 telem = ast_type_copy(ast_ctx(var), array->expression.next);
5388 tfield = ast_value_new(ast_ctx(var), "<.type>", TYPE_FIELD);
5389 tfield->expression.next = telem;
5390 util_snprintf(name, sizeof(name), "%s##GETFP", var->name);
5391 if (!parser_create_array_getter(parser, array, (ast_expression*)tfield, name)) {
5399 if (parser->tok == ';') {
5400 ast_delete(basetype);
5401 if (!parser_next(parser)) {
5402 parseerror(parser, "error after variable declaration");
5408 if (parser->tok == ',')
5412 if (!var || (!localblock && !nofields && basetype->expression.vtype == TYPE_FIELD)) {
5415 parseerror(parser, "missing comma or semicolon while parsing variables");
5419 if (localblock && OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
5420 if (parsewarning(parser, WARN_LOCAL_CONSTANTS,
5421 "initializing expression turns variable `%s` into a constant in this standard",
5428 if (parser->tok != '{' || var->expression.vtype != TYPE_FUNCTION) {
5429 if (parser->tok != '=') {
5430 if (!strcmp(parser_tokval(parser), "break")) {
5431 if (!parser_next(parser)) {
5432 parseerror(parser, "error parsing break definition");
5435 (void)!!parsewarning(parser, WARN_BREAKDEF, "break definition ignored (suggest removing it)");
5437 parseerror(parser, "missing semicolon or initializer, got: `%s`", parser_tokval(parser));
5442 if (!parser_next(parser)) {
5443 parseerror(parser, "error parsing initializer");
5447 else if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
5448 parseerror(parser, "expected '=' before function body in this standard");
5451 if (parser->tok == '#') {
5452 ast_function *func = NULL;
5453 ast_value *number = NULL;
5459 parseerror(parser, "cannot declare builtins within functions");
5462 if (var->expression.vtype != TYPE_FUNCTION) {
5463 parseerror(parser, "unexpected builtin number, '%s' is not a function", var->name);
5466 if (!parser_next(parser)) {
5467 parseerror(parser, "expected builtin number");
5471 if (OPTS_FLAG(EXPRESSIONS_FOR_BUILTINS)) {
5472 number = (ast_value*)parse_expression_leave(parser, true, false, false);
5474 parseerror(parser, "builtin number expected");
5477 if (!ast_istype(number, ast_value) || !number->hasvalue || number->cvq != CV_CONST)
5480 parseerror(parser, "builtin number must be a compile time constant");
5483 if (number->expression.vtype == TYPE_INTEGER)
5484 builtin_num = number->constval.vint;
5485 else if (number->expression.vtype == TYPE_FLOAT)
5486 builtin_num = number->constval.vfloat;
5489 parseerror(parser, "builtin number must be an integer constant");
5494 fractional = modff(builtin_num, &integral);
5495 if (builtin_num < 0 || fractional != 0) {
5496 parseerror(parser, "builtin number must be an integer greater than zero");
5500 /* we only want the integral part anyways */
5501 builtin_num = integral;
5502 } else if (parser->tok == TOKEN_INTCONST) {
5503 builtin_num = parser_token(parser)->constval.i;
5505 parseerror(parser, "builtin number must be a compile time constant");
5509 if (var->hasvalue) {
5510 (void)!parsewarning(parser, WARN_DOUBLE_DECLARATION,
5511 "builtin `%s` has already been defined\n"
5512 " -> previous declaration here: %s:%i",
5513 var->name, ast_ctx(var).file, (int)ast_ctx(var).line);
5517 func = ast_function_new(ast_ctx(var), var->name, var);
5519 parseerror(parser, "failed to allocate function for `%s`", var->name);
5522 vec_push(parser->functions, func);
5524 func->builtin = -builtin_num-1;
5527 if (OPTS_FLAG(EXPRESSIONS_FOR_BUILTINS)
5528 ? (parser->tok != ',' && parser->tok != ';')
5529 : (!parser_next(parser)))
5531 parseerror(parser, "expected comma or semicolon");
5533 ast_function_delete(func);
5534 var->constval.vfunc = NULL;
5538 else if (var->expression.vtype == TYPE_ARRAY && parser->tok == '{')
5541 /* Note that fteqcc and most others don't even *have*
5542 * local arrays, so this is not a high priority.
5544 parseerror(parser, "TODO: initializers for local arrays");
5548 var->hasvalue = true;
5549 if (!parse_array(parser, var))
5552 else if (var->expression.vtype == TYPE_FUNCTION && (parser->tok == '{' || parser->tok == '['))
5555 parseerror(parser, "cannot declare functions within functions");
5560 ast_ctx(proto) = parser_ctx(parser);
5562 if (!parse_function_body(parser, var))
5564 ast_delete(basetype);
5565 for (i = 0; i < vec_size(parser->gotos); ++i)
5566 parseerror(parser, "undefined label: `%s`", parser->gotos[i]->name);
5567 vec_free(parser->gotos);
5568 vec_free(parser->labels);
5571 ast_expression *cexp;
5574 cexp = parse_expression_leave(parser, true, false, false);
5579 cval = (ast_value*)cexp;
5580 if (cval != parser->nil &&
5581 (!ast_istype(cval, ast_value) || ((!cval->hasvalue || cval->cvq != CV_CONST) && !cval->isfield))
5584 parseerror(parser, "cannot initialize a global constant variable with a non-constant expression");
5588 if (!OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
5589 qualifier != CV_VAR)
5591 var->cvq = CV_CONST;
5593 if (cval == parser->nil)
5594 var->expression.flags |= AST_FLAG_INITIALIZED;
5597 var->hasvalue = true;
5598 if (cval->expression.vtype == TYPE_STRING)
5599 var->constval.vstring = parser_strdup(cval->constval.vstring);
5600 else if (cval->expression.vtype == TYPE_FIELD)
5601 var->constval.vfield = cval;
5603 memcpy(&var->constval, &cval->constval, sizeof(var->constval));
5609 shunt sy = { NULL, NULL, NULL, NULL };
5612 vec_push(sy.out, syexp(ast_ctx(var), (ast_expression*)var));
5613 vec_push(sy.out, syexp(ast_ctx(cexp), (ast_expression*)cexp));
5614 vec_push(sy.ops, syop(ast_ctx(var), parser->assign_op));
5615 if (!parser_sy_apply_operator(parser, &sy))
5618 if (vec_size(sy.out) != 1 && vec_size(sy.ops) != 0)
5619 parseerror(parser, "internal error: leaked operands");
5620 if (!ast_block_add_expr(localblock, (ast_expression*)sy.out[0].out))
5631 if (parser->tok == ',') {
5632 if (!parser_next(parser)) {
5633 parseerror(parser, "expected another variable");
5637 if (parser->tok != TOKEN_IDENT) {
5638 parseerror(parser, "expected another variable");
5641 var = ast_value_copy(basetype);
5643 ast_value_set_name(var, parser_tokval(parser));
5644 if (!parser_next(parser)) {
5645 parseerror(parser, "error parsing variable declaration");
5651 if (parser->tok != ';') {
5652 parseerror(parser, "missing semicolon after variables");
5656 if (!parser_next(parser)) {
5657 parseerror(parser, "parse error after variable declaration");
5661 ast_delete(basetype);
5665 if (cleanvar && var)
5667 ast_delete(basetype);
5671 ast_delete(basetype);
5672 if (cleanvar && var)
5674 if (me[0]) ast_member_delete(me[0]);
5675 if (me[1]) ast_member_delete(me[1]);
5676 if (me[2]) ast_member_delete(me[2]);
5680 static bool parser_global_statement(parser_t *parser)
5684 bool is_static = false;
5685 uint32_t qflags = 0;
5686 ast_value *istype = NULL;
5687 char *vstring = NULL;
5689 if (parser->tok == TOKEN_IDENT)
5690 istype = parser_find_typedef(parser, parser_tokval(parser), 0);
5692 if (istype || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
5694 return parse_variable(parser, NULL, false, CV_NONE, istype, false, false, 0, NULL);
5696 else if (parse_qualifiers(parser, false, &cvq, &noref, &is_static, &qflags, &vstring))
5698 if (cvq == CV_WRONG)
5700 return parse_variable(parser, NULL, true, cvq, NULL, noref, is_static, qflags, vstring);
5702 else if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "enum"))
5704 return parse_enum(parser);
5706 else if (parser->tok == TOKEN_KEYWORD)
5708 if (!strcmp(parser_tokval(parser), "typedef")) {
5709 if (!parser_next(parser)) {
5710 parseerror(parser, "expected type definition after 'typedef'");
5713 return parse_typedef(parser);
5715 parseerror(parser, "unrecognized keyword `%s`", parser_tokval(parser));
5718 else if (parser->tok == '#')
5720 return parse_pragma(parser);
5722 else if (parser->tok == '$')
5724 if (!parser_next(parser)) {
5725 parseerror(parser, "parse error");
5731 parseerror(parser, "unexpected token: `%s`", parser->lex->tok.value);
5737 static uint16_t progdefs_crc_sum(uint16_t old, const char *str)
5739 return util_crc16(old, str, strlen(str));
5742 static void progdefs_crc_file(const char *str)
5744 /* write to progdefs.h here */
5748 static uint16_t progdefs_crc_both(uint16_t old, const char *str)
5750 old = progdefs_crc_sum(old, str);
5751 progdefs_crc_file(str);
5755 static void generate_checksum(parser_t *parser, ir_builder *ir)
5757 uint16_t crc = 0xFFFF;
5761 crc = progdefs_crc_both(crc, "\n/* file generated by qcc, do not modify */\n\ntypedef struct\n{");
5762 crc = progdefs_crc_sum(crc, "\tint\tpad[28];\n");
5764 progdefs_crc_file("\tint\tpad;\n");
5765 progdefs_crc_file("\tint\tofs_return[3];\n");
5766 progdefs_crc_file("\tint\tofs_parm0[3];\n");
5767 progdefs_crc_file("\tint\tofs_parm1[3];\n");
5768 progdefs_crc_file("\tint\tofs_parm2[3];\n");
5769 progdefs_crc_file("\tint\tofs_parm3[3];\n");
5770 progdefs_crc_file("\tint\tofs_parm4[3];\n");
5771 progdefs_crc_file("\tint\tofs_parm5[3];\n");
5772 progdefs_crc_file("\tint\tofs_parm6[3];\n");
5773 progdefs_crc_file("\tint\tofs_parm7[3];\n");
5775 for (i = 0; i < parser->crc_globals; ++i) {
5776 if (!ast_istype(parser->globals[i], ast_value))
5778 value = (ast_value*)(parser->globals[i]);
5779 switch (value->expression.vtype) {
5780 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
5781 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
5782 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
5783 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
5785 crc = progdefs_crc_both(crc, "\tint\t");
5788 crc = progdefs_crc_both(crc, value->name);
5789 crc = progdefs_crc_both(crc, ";\n");
5791 crc = progdefs_crc_both(crc, "} globalvars_t;\n\ntypedef struct\n{\n");
5792 for (i = 0; i < parser->crc_fields; ++i) {
5793 if (!ast_istype(parser->fields[i], ast_value))
5795 value = (ast_value*)(parser->fields[i]);
5796 switch (value->expression.next->vtype) {
5797 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
5798 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
5799 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
5800 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
5802 crc = progdefs_crc_both(crc, "\tint\t");
5805 crc = progdefs_crc_both(crc, value->name);
5806 crc = progdefs_crc_both(crc, ";\n");
5808 crc = progdefs_crc_both(crc, "} entvars_t;\n\n");
5809 ir->code->crc = crc;
5812 parser_t *parser_create()
5815 lex_ctx_t empty_ctx;
5818 parser = (parser_t*)mem_a(sizeof(parser_t));
5822 memset(parser, 0, sizeof(*parser));
5824 for (i = 0; i < operator_count; ++i) {
5825 if (operators[i].id == opid1('=')) {
5826 parser->assign_op = operators+i;
5830 if (!parser->assign_op) {
5831 printf("internal error: initializing parser: failed to find assign operator\n");
5836 vec_push(parser->variables, parser->htfields = util_htnew(PARSER_HT_SIZE));
5837 vec_push(parser->variables, parser->htglobals = util_htnew(PARSER_HT_SIZE));
5838 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
5839 vec_push(parser->_blocktypedefs, 0);
5841 parser->aliases = util_htnew(PARSER_HT_SIZE);
5844 vec_push(parser->correct_variables, correct_trie_new());
5845 vec_push(parser->correct_variables_score, NULL);
5847 empty_ctx.file = "<internal>";
5849 empty_ctx.column = 0;
5850 parser->nil = ast_value_new(empty_ctx, "nil", TYPE_NIL);
5851 parser->nil->cvq = CV_CONST;
5852 if (OPTS_FLAG(UNTYPED_NIL))
5853 util_htset(parser->htglobals, "nil", (void*)parser->nil);
5855 parser->max_param_count = 1;
5857 parser->const_vec[0] = ast_value_new(empty_ctx, "<vector.x>", TYPE_NOEXPR);
5858 parser->const_vec[1] = ast_value_new(empty_ctx, "<vector.y>", TYPE_NOEXPR);
5859 parser->const_vec[2] = ast_value_new(empty_ctx, "<vector.z>", TYPE_NOEXPR);
5861 if (OPTS_OPTION_BOOL(OPTION_ADD_INFO)) {
5862 parser->reserved_version = ast_value_new(empty_ctx, "reserved:version", TYPE_STRING);
5863 parser->reserved_version->cvq = CV_CONST;
5864 parser->reserved_version->hasvalue = true;
5865 parser->reserved_version->expression.flags |= AST_FLAG_INCLUDE_DEF;
5866 parser->reserved_version->constval.vstring = util_strdup(GMQCC_FULL_VERSION_STRING);
5868 parser->reserved_version = NULL;
5871 parser->fold = fold_init(parser);
5875 static bool parser_compile(parser_t *parser)
5877 /* initial lexer/parser state */
5878 parser->lex->flags.noops = true;
5880 if (parser_next(parser))
5882 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
5884 if (!parser_global_statement(parser)) {
5885 if (parser->tok == TOKEN_EOF)
5886 parseerror(parser, "unexpected end of file");
5887 else if (compile_errors)
5888 parseerror(parser, "there have been errors, bailing out");
5889 lex_close(parser->lex);
5895 parseerror(parser, "parse error");
5896 lex_close(parser->lex);
5901 lex_close(parser->lex);
5904 return !compile_errors;
5907 bool parser_compile_file(parser_t *parser, const char *filename)
5909 parser->lex = lex_open(filename);
5911 con_err("failed to open file \"%s\"\n", filename);
5914 return parser_compile(parser);
5917 bool parser_compile_string(parser_t *parser, const char *name, const char *str, size_t len)
5919 parser->lex = lex_open_string(str, len, name);
5921 con_err("failed to create lexer for string \"%s\"\n", name);
5924 return parser_compile(parser);
5927 static void parser_remove_ast(parser_t *parser)
5930 if (parser->ast_cleaned)
5932 parser->ast_cleaned = true;
5933 for (i = 0; i < vec_size(parser->accessors); ++i) {
5934 ast_delete(parser->accessors[i]->constval.vfunc);
5935 parser->accessors[i]->constval.vfunc = NULL;
5936 ast_delete(parser->accessors[i]);
5938 for (i = 0; i < vec_size(parser->functions); ++i) {
5939 ast_delete(parser->functions[i]);
5941 for (i = 0; i < vec_size(parser->fields); ++i) {
5942 ast_delete(parser->fields[i]);
5944 for (i = 0; i < vec_size(parser->globals); ++i) {
5945 ast_delete(parser->globals[i]);
5947 vec_free(parser->accessors);
5948 vec_free(parser->functions);
5949 vec_free(parser->globals);
5950 vec_free(parser->fields);
5952 for (i = 0; i < vec_size(parser->variables); ++i)
5953 util_htdel(parser->variables[i]);
5954 vec_free(parser->variables);
5955 vec_free(parser->_blocklocals);
5956 vec_free(parser->_locals);
5959 for (i = 0; i < vec_size(parser->correct_variables); ++i) {
5960 correct_del(parser->correct_variables[i], parser->correct_variables_score[i]);
5962 vec_free(parser->correct_variables);
5963 vec_free(parser->correct_variables_score);
5965 for (i = 0; i < vec_size(parser->_typedefs); ++i)
5966 ast_delete(parser->_typedefs[i]);
5967 vec_free(parser->_typedefs);
5968 for (i = 0; i < vec_size(parser->typedefs); ++i)
5969 util_htdel(parser->typedefs[i]);
5970 vec_free(parser->typedefs);
5971 vec_free(parser->_blocktypedefs);
5973 vec_free(parser->_block_ctx);
5975 vec_free(parser->labels);
5976 vec_free(parser->gotos);
5977 vec_free(parser->breaks);
5978 vec_free(parser->continues);
5980 ast_value_delete(parser->nil);
5982 ast_value_delete(parser->const_vec[0]);
5983 ast_value_delete(parser->const_vec[1]);
5984 ast_value_delete(parser->const_vec[2]);
5986 if (parser->reserved_version)
5987 ast_value_delete(parser->reserved_version);
5989 util_htdel(parser->aliases);
5990 intrin_intrinsics_destroy(parser);
5991 fold_cleanup(parser->fold);
5994 void parser_cleanup(parser_t *parser)
5996 parser_remove_ast(parser);
6000 bool parser_finish(parser_t *parser, const char *output)
6006 if (compile_errors) {
6007 con_out("*** there were compile errors\n");
6011 ir = ir_builder_new("gmqcc_out");
6013 con_out("failed to allocate builder\n");
6017 for (i = 0; i < vec_size(parser->fields); ++i) {
6020 if (!ast_istype(parser->fields[i], ast_value))
6022 field = (ast_value*)parser->fields[i];
6023 hasvalue = field->hasvalue;
6024 field->hasvalue = false;
6025 if (!ast_global_codegen((ast_value*)field, ir, true)) {
6026 con_out("failed to generate field %s\n", field->name);
6027 ir_builder_delete(ir);
6032 ast_expression *subtype;
6033 field->hasvalue = true;
6034 subtype = field->expression.next;
6035 ifld = ir_builder_create_field(ir, field->name, subtype->vtype);
6036 if (subtype->vtype == TYPE_FIELD)
6037 ifld->fieldtype = subtype->next->vtype;
6038 else if (subtype->vtype == TYPE_FUNCTION)
6039 ifld->outtype = subtype->next->vtype;
6040 (void)!ir_value_set_field(field->ir_v, ifld);
6043 for (i = 0; i < vec_size(parser->globals); ++i) {
6045 if (!ast_istype(parser->globals[i], ast_value))
6047 asvalue = (ast_value*)(parser->globals[i]);
6048 if (!asvalue->uses && !asvalue->hasvalue && asvalue->expression.vtype != TYPE_FUNCTION) {
6049 retval = retval && !compile_warning(ast_ctx(asvalue), WARN_UNUSED_VARIABLE,
6050 "unused global: `%s`", asvalue->name);
6052 if (!ast_global_codegen(asvalue, ir, false)) {
6053 con_out("failed to generate global %s\n", asvalue->name);
6054 ir_builder_delete(ir);
6058 /* Build function vararg accessor ast tree now before generating
6059 * immediates, because the accessors may add new immediates
6061 for (i = 0; i < vec_size(parser->functions); ++i) {
6062 ast_function *f = parser->functions[i];
6064 if (parser->max_param_count > vec_size(f->vtype->expression.params)) {
6065 f->varargs->expression.count = parser->max_param_count - vec_size(f->vtype->expression.params);
6066 if (!parser_create_array_setter_impl(parser, f->varargs)) {
6067 con_out("failed to generate vararg setter for %s\n", f->name);
6068 ir_builder_delete(ir);
6071 if (!parser_create_array_getter_impl(parser, f->varargs)) {
6072 con_out("failed to generate vararg getter for %s\n", f->name);
6073 ir_builder_delete(ir);
6077 ast_delete(f->varargs);
6082 /* Now we can generate immediates */
6083 if (!fold_generate(parser->fold, ir))
6086 for (i = 0; i < vec_size(parser->globals); ++i) {
6088 if (!ast_istype(parser->globals[i], ast_value))
6090 asvalue = (ast_value*)(parser->globals[i]);
6091 if (!(asvalue->expression.flags & AST_FLAG_INITIALIZED))
6093 if (asvalue->cvq == CV_CONST && !asvalue->hasvalue)
6094 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_CONSTANT,
6095 "uninitialized constant: `%s`",
6097 else if ((asvalue->cvq == CV_NONE || asvalue->cvq == CV_CONST) && !asvalue->hasvalue)
6098 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_GLOBAL,
6099 "uninitialized global: `%s`",
6102 if (!ast_generate_accessors(asvalue, ir)) {
6103 ir_builder_delete(ir);
6107 for (i = 0; i < vec_size(parser->fields); ++i) {
6109 asvalue = (ast_value*)(parser->fields[i]->next);
6111 if (!ast_istype((ast_expression*)asvalue, ast_value))
6113 if (asvalue->expression.vtype != TYPE_ARRAY)
6115 if (!ast_generate_accessors(asvalue, ir)) {
6116 ir_builder_delete(ir);
6120 if (parser->reserved_version &&
6121 !ast_global_codegen(parser->reserved_version, ir, false))
6123 con_out("failed to generate reserved::version");
6124 ir_builder_delete(ir);
6127 for (i = 0; i < vec_size(parser->functions); ++i) {
6128 ast_function *f = parser->functions[i];
6129 if (!ast_function_codegen(f, ir)) {
6130 con_out("failed to generate function %s\n", f->name);
6131 ir_builder_delete(ir);
6136 generate_checksum(parser, ir);
6138 if (OPTS_OPTION_BOOL(OPTION_DUMP))
6139 ir_builder_dump(ir, con_out);
6140 for (i = 0; i < vec_size(parser->functions); ++i) {
6141 if (!ir_function_finalize(parser->functions[i]->ir_func)) {
6142 con_out("failed to finalize function %s\n", parser->functions[i]->name);
6143 ir_builder_delete(ir);
6147 parser_remove_ast(parser);
6149 if (compile_Werrors) {
6150 con_out("*** there were warnings treated as errors\n");
6151 compile_show_werrors();
6156 if (OPTS_OPTION_BOOL(OPTION_DUMPFIN))
6157 ir_builder_dump(ir, con_out);
6159 if (!ir_builder_generate(ir, output)) {
6160 con_out("*** failed to generate output file\n");
6161 ir_builder_delete(ir);
6165 ir_builder_delete(ir);