2 * Copyright (C) 2012, 2013
6 * Permission is hereby granted, free of charge, to any person obtaining a copy of
7 * this software and associated documentation files (the "Software"), to deal in
8 * the Software without restriction, including without limitation the rights to
9 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
10 * of the Software, and to permit persons to whom the Software is furnished to do
11 * so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
28 #define PARSER_HT_LOCALS 2
29 #define PARSER_HT_SIZE 512
30 #define TYPEDEF_HT_SIZE 512
32 static ast_expression * const intrinsic_debug_typestring = (ast_expression*)0x1;
34 static void parser_enterblock(parser_t *parser);
35 static bool parser_leaveblock(parser_t *parser);
36 static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e);
37 static void parser_addglobal(parser_t *parser, const char *name, ast_expression *e);
38 static bool parse_typedef(parser_t *parser);
39 static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofields, int qualifier, ast_value *cached_typedef, bool noref, bool is_static, uint32_t qflags, char *vstring);
40 static ast_block* parse_block(parser_t *parser);
41 static bool parse_block_into(parser_t *parser, ast_block *block);
42 static bool parse_statement_or_block(parser_t *parser, ast_expression **out);
43 static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases);
44 static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels);
45 static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels);
46 static ast_value* parser_create_array_setter_proto(parser_t *parser, ast_value *array, const char *funcname);
47 static ast_value* parser_create_array_getter_proto(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname);
48 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
50 static void parseerror(parser_t *parser, const char *fmt, ...)
54 vcompile_error(parser->lex->tok.ctx, fmt, ap);
58 /* returns true if it counts as an error */
59 static bool GMQCC_WARN parsewarning(parser_t *parser, int warntype, const char *fmt, ...)
64 r = vcompile_warning(parser->lex->tok.ctx, warntype, fmt, ap);
69 /**********************************************************************
73 static bool parser_next(parser_t *parser)
75 /* lex_do kills the previous token */
76 parser->tok = lex_do(parser->lex);
77 if (parser->tok == TOKEN_EOF)
79 if (parser->tok >= TOKEN_ERROR) {
80 parseerror(parser, "lex error");
86 #define parser_tokval(p) ((p)->lex->tok.value)
87 #define parser_token(p) (&((p)->lex->tok))
89 char *parser_strdup(const char *str)
92 /* actually dup empty strings */
93 char *out = (char*)mem_a(1);
97 return util_strdup(str);
100 static ast_expression* parser_find_field(parser_t *parser, const char *name)
102 return ( ast_expression*)util_htget(parser->htfields, name);
105 static ast_expression* parser_find_label(parser_t *parser, const char *name)
108 for(i = 0; i < vec_size(parser->labels); i++)
109 if (!strcmp(parser->labels[i]->name, name))
110 return (ast_expression*)parser->labels[i];
114 static ast_expression* parser_find_global(parser_t *parser, const char *name)
116 ast_expression *var = (ast_expression*)util_htget(parser->aliases, parser_tokval(parser));
119 return (ast_expression*)util_htget(parser->htglobals, name);
122 static ast_expression* parser_find_param(parser_t *parser, const char *name)
126 if (!parser->function)
128 fun = parser->function->vtype;
129 for (i = 0; i < vec_size(fun->expression.params); ++i) {
130 if (!strcmp(fun->expression.params[i]->name, name))
131 return (ast_expression*)(fun->expression.params[i]);
136 static ast_expression* parser_find_local(parser_t *parser, const char *name, size_t upto, bool *isparam)
141 hash = util_hthash(parser->htglobals, name);
144 for (i = vec_size(parser->variables); i > upto;) {
146 if ( (e = (ast_expression*)util_htgeth(parser->variables[i], name, hash)) )
150 return parser_find_param(parser, name);
153 static ast_expression* parser_find_var(parser_t *parser, const char *name)
157 v = parser_find_local(parser, name, 0, &dummy);
158 if (!v) v = parser_find_global(parser, name);
162 static ast_value* parser_find_typedef(parser_t *parser, const char *name, size_t upto)
166 hash = util_hthash(parser->typedefs[0], name);
168 for (i = vec_size(parser->typedefs); i > upto;) {
170 if ( (e = (ast_value*)util_htgeth(parser->typedefs[i], name, hash)) )
176 /* include intrinsics */
181 size_t etype; /* 0 = expression, others are operators */
185 ast_block *block; /* for commas and function calls */
204 static sy_elem syexp(lex_ctx_t ctx, ast_expression *v) {
215 static sy_elem syblock(lex_ctx_t ctx, ast_block *v) {
219 e.out = (ast_expression*)v;
226 static sy_elem syop(lex_ctx_t ctx, const oper_info *op) {
228 e.etype = 1 + (op - operators);
237 static sy_elem syparen(lex_ctx_t ctx, size_t off) {
248 /* With regular precedence rules, ent.foo[n] is the same as (ent.foo)[n],
249 * so we need to rotate it to become ent.(foo[n]).
251 static bool rotate_entfield_array_index_nodes(ast_expression **out)
253 ast_array_index *index, *oldindex;
254 ast_entfield *entfield;
258 ast_expression *entity;
260 lex_ctx_t ctx = ast_ctx(*out);
262 if (!ast_istype(*out, ast_array_index))
264 index = (ast_array_index*)*out;
266 if (!ast_istype(index->array, ast_entfield))
268 entfield = (ast_entfield*)index->array;
270 if (!ast_istype(entfield->field, ast_value))
272 field = (ast_value*)entfield->field;
275 entity = entfield->entity;
279 index = ast_array_index_new(ctx, (ast_expression*)field, sub);
280 entfield = ast_entfield_new(ctx, entity, (ast_expression*)index);
281 *out = (ast_expression*)entfield;
283 oldindex->array = NULL;
284 oldindex->index = NULL;
285 ast_delete(oldindex);
290 static bool parser_sy_apply_operator(parser_t *parser, shunt *sy)
294 ast_expression *out = NULL;
295 ast_expression *exprs[3];
296 ast_block *blocks[3];
297 ast_value *asvalue[3];
298 ast_binstore *asbinstore;
299 size_t i, assignop, addop, subop;
300 qcint_t generated_op = 0;
305 if (!vec_size(sy->ops)) {
306 parseerror(parser, "internal error: missing operator");
310 if (vec_last(sy->ops).isparen) {
311 parseerror(parser, "unmatched parenthesis");
315 op = &operators[vec_last(sy->ops).etype - 1];
316 ctx = vec_last(sy->ops).ctx;
318 if (vec_size(sy->out) < op->operands) {
319 compile_error(ctx, "internal error: not enough operands: %i (operator %s (%i))", vec_size(sy->out),
320 op->op, (int)op->id);
324 vec_shrinkby(sy->ops, 1);
326 /* op(:?) has no input and no output */
330 vec_shrinkby(sy->out, op->operands);
331 for (i = 0; i < op->operands; ++i) {
332 exprs[i] = sy->out[vec_size(sy->out)+i].out;
333 blocks[i] = sy->out[vec_size(sy->out)+i].block;
334 asvalue[i] = (ast_value*)exprs[i];
336 if (exprs[i]->vtype == TYPE_NOEXPR &&
337 !(i != 0 && op->id == opid2('?',':')) &&
338 !(i == 1 && op->id == opid1('.')))
340 if (ast_istype(exprs[i], ast_label))
341 compile_error(ast_ctx(exprs[i]), "expected expression, got an unknown identifier");
343 compile_error(ast_ctx(exprs[i]), "not an expression");
344 (void)!compile_warning(ast_ctx(exprs[i]), WARN_DEBUG, "expression %u\n", (unsigned int)i);
348 if (blocks[0] && !vec_size(blocks[0]->exprs) && op->id != opid1(',')) {
349 compile_error(ctx, "internal error: operator cannot be applied on empty blocks");
353 #define NotSameType(T) \
354 (exprs[0]->vtype != exprs[1]->vtype || \
355 exprs[0]->vtype != T)
357 /* preform any constant folding on operator usage first */
358 /*if ((out = fold_op(parser->fold, op, exprs)))*/
364 compile_error(ctx, "internal error: unhandled operator: %s (%i)", op->op, (int)op->id);
368 if (exprs[0]->vtype == TYPE_VECTOR &&
369 exprs[1]->vtype == TYPE_NOEXPR)
371 if (exprs[1] == (ast_expression*)parser->const_vec[0])
372 out = (ast_expression*)ast_member_new(ctx, exprs[0], 0, NULL);
373 else if (exprs[1] == (ast_expression*)parser->const_vec[1])
374 out = (ast_expression*)ast_member_new(ctx, exprs[0], 1, NULL);
375 else if (exprs[1] == (ast_expression*)parser->const_vec[2])
376 out = (ast_expression*)ast_member_new(ctx, exprs[0], 2, NULL);
378 compile_error(ctx, "access to invalid vector component");
382 else if (exprs[0]->vtype == TYPE_ENTITY) {
383 if (exprs[1]->vtype != TYPE_FIELD) {
384 compile_error(ast_ctx(exprs[1]), "type error: right hand of member-operand should be an entity-field");
387 out = (ast_expression*)ast_entfield_new(ctx, exprs[0], exprs[1]);
389 else if (exprs[0]->vtype == TYPE_VECTOR) {
390 compile_error(ast_ctx(exprs[1]), "vectors cannot be accessed this way");
394 compile_error(ast_ctx(exprs[1]), "type error: member-of operator on something that is not an entity or vector");
400 if (exprs[0]->vtype != TYPE_ARRAY &&
401 !(exprs[0]->vtype == TYPE_FIELD &&
402 exprs[0]->next->vtype == TYPE_ARRAY))
404 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
405 compile_error(ast_ctx(exprs[0]), "cannot index value of type %s", ty1);
408 if (exprs[1]->vtype != TYPE_FLOAT) {
409 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
410 compile_error(ast_ctx(exprs[1]), "index must be of type float, not %s", ty1);
413 out = (ast_expression*)ast_array_index_new(ctx, exprs[0], exprs[1]);
414 if (rotate_entfield_array_index_nodes(&out))
417 /* This is not broken in fteqcc anymore */
418 if (OPTS_OPTION_U32(OPTION_STANDARD) != COMPILER_GMQCC) {
419 /* this error doesn't need to make us bail out */
420 (void)!parsewarning(parser, WARN_EXTENSIONS,
421 "accessing array-field members of an entity without parenthesis\n"
422 " -> this is an extension from -std=gmqcc");
429 if (vec_size(sy->paren) && vec_last(sy->paren) == PAREN_FUNC) {
430 vec_push(sy->out, syexp(ctx, exprs[0]));
431 vec_push(sy->out, syexp(ctx, exprs[1]));
432 vec_last(sy->argc)++;
436 if (!ast_block_add_expr(blocks[0], exprs[1]))
439 blocks[0] = ast_block_new(ctx);
440 if (!ast_block_add_expr(blocks[0], exprs[0]) ||
441 !ast_block_add_expr(blocks[0], exprs[1]))
446 ast_block_set_type(blocks[0], exprs[1]);
448 vec_push(sy->out, syblock(ctx, blocks[0]));
455 if (!(out = fold_op(parser->fold, op, exprs))) {
456 switch (exprs[0]->vtype) {
458 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F,
459 (ast_expression*)parser->fold->imm_float[0],
463 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V,
464 (ast_expression*)parser->fold->imm_vector[0],
468 compile_error(ctx, "invalid types used in expression: cannot negate type %s",
469 type_name[exprs[0]->vtype]);
476 if (!(out = fold_op(parser->fold, op, exprs))) {
477 switch (exprs[0]->vtype) {
479 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
482 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[0]);
485 if (OPTS_FLAG(TRUE_EMPTY_STRINGS))
486 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
488 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[0]);
490 /* we don't constant-fold NOT for these types */
492 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_ENT, exprs[0]);
495 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_FNC, exprs[0]);
498 compile_error(ctx, "invalid types used in expression: cannot logically negate type %s",
499 type_name[exprs[0]->vtype]);
506 if (exprs[0]->vtype != exprs[1]->vtype ||
507 (exprs[0]->vtype != TYPE_VECTOR && exprs[0]->vtype != TYPE_FLOAT) )
509 compile_error(ctx, "invalid types used in expression: cannot add type %s and %s (%s %s)",
510 type_name[exprs[0]->vtype],
511 type_name[exprs[1]->vtype],
516 if (!(out = fold_op(parser->fold, op, exprs))) {
517 switch (exprs[0]->vtype) {
519 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F, exprs[0], exprs[1]);
522 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_V, exprs[0], exprs[1]);
525 compile_error(ctx, "invalid types used in expression: cannot add type %s and %s",
526 type_name[exprs[0]->vtype],
527 type_name[exprs[1]->vtype]);
533 if (exprs[0]->vtype != exprs[1]->vtype ||
534 (exprs[0]->vtype != TYPE_VECTOR && exprs[0]->vtype != TYPE_FLOAT))
536 compile_error(ctx, "invalid types used in expression: cannot subtract type %s from %s",
537 type_name[exprs[1]->vtype],
538 type_name[exprs[0]->vtype]);
541 if (!(out = fold_op(parser->fold, op, exprs))) {
542 switch (exprs[0]->vtype) {
544 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F, exprs[0], exprs[1]);
547 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V, exprs[0], exprs[1]);
550 compile_error(ctx, "invalid types used in expression: cannot subtract type %s from %s",
551 type_name[exprs[1]->vtype],
552 type_name[exprs[0]->vtype]);
558 if (exprs[0]->vtype != exprs[1]->vtype &&
559 !(exprs[0]->vtype == TYPE_VECTOR &&
560 exprs[1]->vtype == TYPE_FLOAT) &&
561 !(exprs[1]->vtype == TYPE_VECTOR &&
562 exprs[0]->vtype == TYPE_FLOAT)
565 compile_error(ctx, "invalid types used in expression: cannot multiply types %s and %s",
566 type_name[exprs[1]->vtype],
567 type_name[exprs[0]->vtype]);
570 if (!(out = fold_op(parser->fold, op, exprs))) {
571 switch (exprs[0]->vtype) {
573 if (exprs[1]->vtype == TYPE_VECTOR)
574 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_FV, exprs[0], exprs[1]);
576 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, exprs[0], exprs[1]);
579 if (exprs[1]->vtype == TYPE_FLOAT)
580 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_VF, exprs[0], exprs[1]);
582 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
585 compile_error(ctx, "invalid types used in expression: cannot multiply types %s and %s",
586 type_name[exprs[1]->vtype],
587 type_name[exprs[0]->vtype]);
594 if (exprs[1]->vtype != TYPE_FLOAT) {
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);
600 if (!(out = fold_op(parser->fold, op, exprs))) {
601 if (exprs[0]->vtype == TYPE_FLOAT)
602 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F, exprs[0], exprs[1]);
604 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
605 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
606 compile_error(ctx, "invalid types used in expression: cannot divide types %s and %s", ty1, ty2);
613 if (NotSameType(TYPE_FLOAT)) {
614 compile_error(ctx, "invalid types used in expression: cannot perform modulo operation between types %s and %s",
615 type_name[exprs[0]->vtype],
616 type_name[exprs[1]->vtype]);
618 } else if (!(out = fold_op(parser->fold, op, exprs))) {
619 /* generate a call to __builtin_mod */
620 ast_expression *mod = intrin_func(parser, "mod");
621 ast_call *call = NULL;
622 if (!mod) return false; /* can return null for missing floor */
624 call = ast_call_new(parser_ctx(parser), mod);
625 vec_push(call->params, exprs[0]);
626 vec_push(call->params, exprs[1]);
628 out = (ast_expression*)call;
633 compile_error(ctx, "%= is unimplemented");
638 if (NotSameType(TYPE_FLOAT)) {
639 compile_error(ctx, "invalid types used in expression: cannot perform bit operations between types %s and %s",
640 type_name[exprs[0]->vtype],
641 type_name[exprs[1]->vtype]);
644 if (!(out = fold_op(parser->fold, op, exprs)))
645 out = (ast_expression*)ast_binary_new(ctx,
646 (op->id == opid1('|') ? INSTR_BITOR : INSTR_BITAND),
651 * Okay lets designate what the hell is an acceptable use
652 * of the ^ operator. In many vector processing units, XOR
653 * is allowed to be used on vectors, but only if the first
654 * operand is a vector, the second operand can be a float
655 * or vector. It's never legal for the first operand to be
656 * a float, and then the following operand to be a vector.
657 * Further more, the only time it is legal to do XOR otherwise
658 * is when both operand are floats. This nicely crafted if
659 * statement catches them all.
661 * In the event that the first operand is a vector, two
662 * possible situations can arise, thus, each element of
663 * vector A (operand A) is exclusive-ORed with the corresponding
664 * element of vector B (operand B), If B is scalar, the
665 * scalar value is first replicated for each element.
667 * The QCVM itself lacks a BITXOR instruction. Thus emulating
668 * the mathematics of it is required. The following equation
669 * is used: (LHS | RHS) & ~(LHS & RHS). However, due to the
670 * QCVM also lacking a BITNEG instruction, we need to emulate
671 * ~FOO with -1 - FOO, the whole process becoming this nicely
672 * crafted expression: (LHS | RHS) & (-1 - (LHS & RHS)).
674 * When A is not scalar, this process is repeated for all
675 * components of vector A with the value in operand B,
676 * only if operand B is scalar. When A is not scalar, and B
677 * is also not scalar, this process is repeated for all
678 * components of the vector A with the components of vector B.
679 * Finally when A is scalar and B is scalar, this process is
680 * simply used once for A and B being LHS and RHS respectfully.
682 * Yes the semantics are a bit strange (no pun intended).
683 * But then again BITXOR is strange itself, consdering it's
684 * commutative, assocative, and elements of the BITXOR operation
685 * are their own inverse.
687 if ( !(exprs[0]->vtype == TYPE_FLOAT && exprs[1]->vtype == TYPE_FLOAT) &&
688 !(exprs[0]->vtype == TYPE_VECTOR && exprs[1]->vtype == TYPE_FLOAT) &&
689 !(exprs[0]->vtype == TYPE_VECTOR && exprs[1]->vtype == TYPE_VECTOR))
691 compile_error(ctx, "invalid types used in expression: cannot perform bit operations between types %s and %s",
692 type_name[exprs[0]->vtype],
693 type_name[exprs[1]->vtype]);
697 if (!(out = fold_op(parser->fold, op, exprs))) {
699 * IF the first expression is float, the following will be too
700 * since scalar ^ vector is not allowed.
702 if (exprs[0]->vtype == TYPE_FLOAT) {
703 ast_binary *expr = ast_binary_new(
706 (ast_expression*)parser->fold->imm_float[2],
707 (ast_expression*)ast_binary_new(
714 expr->refs = AST_REF_NONE;
716 out = (ast_expression*)
720 (ast_expression*)ast_binary_new(
726 (ast_expression*)expr
730 * The first is a vector: vector is allowed to xor with vector and
731 * with scalar, branch here for the second operand.
733 if (exprs[1]->vtype == TYPE_VECTOR) {
735 * Xor all the values of the vector components against the
736 * vectors components in question.
738 compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-xor for vector against vector");
741 compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-xor for vector against float");
750 case opid3('<','<','='):
751 case opid3('>','>','='):
752 if(!(out = fold_op(parser->fold, op, exprs))) {
753 compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-shifts");
758 generated_op += 1; /* INSTR_OR */
760 generated_op += INSTR_AND;
761 if (!(out = fold_op(parser->fold, op, exprs))) {
762 if (OPTS_FLAG(PERL_LOGIC) && !ast_compare_type(exprs[0], exprs[1])) {
763 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
764 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
765 compile_error(ctx, "invalid types for logical operation with -fperl-logic: %s and %s", ty1, ty2);
768 for (i = 0; i < 2; ++i) {
769 if (OPTS_FLAG(CORRECT_LOGIC) && exprs[i]->vtype == TYPE_VECTOR) {
770 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[i]);
772 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
774 exprs[i] = out; out = NULL;
775 if (OPTS_FLAG(PERL_LOGIC)) {
776 /* here we want to keep the right expressions' type */
780 else if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && exprs[i]->vtype == TYPE_STRING) {
781 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[i]);
783 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
785 exprs[i] = out; out = NULL;
786 if (OPTS_FLAG(PERL_LOGIC)) {
787 /* here we want to keep the right expressions' type */
792 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
797 if (vec_last(sy->paren) != PAREN_TERNARY2) {
798 compile_error(ctx, "mismatched parenthesis/ternary");
802 if (!ast_compare_type(exprs[1], exprs[2])) {
803 ast_type_to_string(exprs[1], ty1, sizeof(ty1));
804 ast_type_to_string(exprs[2], ty2, sizeof(ty2));
805 compile_error(ctx, "operands of ternary expression must have the same type, got %s and %s", ty1, ty2);
808 if (!(out = fold_op(parser->fold, op, exprs)))
809 out = (ast_expression*)ast_ternary_new(ctx, exprs[0], exprs[1], exprs[2]);
812 case opid2('*', '*'):
813 if (NotSameType(TYPE_FLOAT)) {
814 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
815 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
816 compile_error(ctx, "invalid types used in exponentiation: %s and %s",
821 if (!(out = fold_op(parser->fold, op, exprs))) {
822 ast_call *gencall = ast_call_new(parser_ctx(parser), intrin_func(parser, "pow"));
823 vec_push(gencall->params, exprs[0]);
824 vec_push(gencall->params, exprs[1]);
825 out = (ast_expression*)gencall;
829 case opid3('<','=','>'): /* -1, 0, or 1 */
830 if (NotSameType(TYPE_FLOAT)) {
831 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
832 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
833 compile_error(ctx, "invalid types used in comparision: %s and %s",
839 if (!(out = fold_op(parser->fold, op, exprs))) {
840 ast_binary *eq = ast_binary_new(ctx, INSTR_EQ_F, exprs[0], exprs[1]);
842 eq->refs = AST_REF_NONE;
845 out = (ast_expression*)ast_ternary_new(ctx,
846 (ast_expression*)ast_binary_new(ctx, INSTR_LT, exprs[0], exprs[1]),
848 (ast_expression*)parser->fold->imm_float[2],
851 (ast_expression*)ast_ternary_new(ctx, (ast_expression*)eq,
853 (ast_expression*)parser->fold->imm_float[0],
856 (ast_expression*)parser->fold->imm_float[1]
866 generated_op += 1; /* INSTR_GT */
868 generated_op += 1; /* INSTR_LT */
869 case opid2('>', '='):
870 generated_op += 1; /* INSTR_GE */
871 case opid2('<', '='):
872 generated_op += INSTR_LE;
873 if (NotSameType(TYPE_FLOAT)) {
874 compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
875 type_name[exprs[0]->vtype],
876 type_name[exprs[1]->vtype]);
879 if (!(out = fold_op(parser->fold, op, exprs)))
880 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
882 case opid2('!', '='):
883 if (exprs[0]->vtype != exprs[1]->vtype) {
884 compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
885 type_name[exprs[0]->vtype],
886 type_name[exprs[1]->vtype]);
889 if (!(out = fold_op(parser->fold, op, exprs)))
890 out = (ast_expression*)ast_binary_new(ctx, type_ne_instr[exprs[0]->vtype], exprs[0], exprs[1]);
892 case opid2('=', '='):
893 if (exprs[0]->vtype != exprs[1]->vtype) {
894 compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
895 type_name[exprs[0]->vtype],
896 type_name[exprs[1]->vtype]);
899 if (!(out = fold_op(parser->fold, op, exprs)))
900 out = (ast_expression*)ast_binary_new(ctx, type_eq_instr[exprs[0]->vtype], exprs[0], exprs[1]);
904 if (ast_istype(exprs[0], ast_entfield)) {
905 ast_expression *field = ((ast_entfield*)exprs[0])->field;
906 if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) &&
907 exprs[0]->vtype == TYPE_FIELD &&
908 exprs[0]->next->vtype == TYPE_VECTOR)
910 assignop = type_storep_instr[TYPE_VECTOR];
913 assignop = type_storep_instr[exprs[0]->vtype];
914 if (assignop == VINSTR_END || !ast_compare_type(field->next, exprs[1]))
916 ast_type_to_string(field->next, ty1, sizeof(ty1));
917 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
918 if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
919 field->next->vtype == TYPE_FUNCTION &&
920 exprs[1]->vtype == TYPE_FUNCTION)
922 (void)!compile_warning(ctx, WARN_ASSIGN_FUNCTION_TYPES,
923 "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
926 compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
931 if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) &&
932 exprs[0]->vtype == TYPE_FIELD &&
933 exprs[0]->next->vtype == TYPE_VECTOR)
935 assignop = type_store_instr[TYPE_VECTOR];
938 assignop = type_store_instr[exprs[0]->vtype];
941 if (assignop == VINSTR_END) {
942 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
943 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
944 compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
946 else if (!ast_compare_type(exprs[0], exprs[1]))
948 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
949 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
950 if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
951 exprs[0]->vtype == TYPE_FUNCTION &&
952 exprs[1]->vtype == TYPE_FUNCTION)
954 (void)!compile_warning(ctx, WARN_ASSIGN_FUNCTION_TYPES,
955 "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
958 compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
961 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
962 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
964 out = (ast_expression*)ast_store_new(ctx, assignop, exprs[0], exprs[1]);
966 case opid3('+','+','P'):
967 case opid3('-','-','P'):
969 if (exprs[0]->vtype != TYPE_FLOAT) {
970 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
971 compile_error(ast_ctx(exprs[0]), "invalid type for prefix increment: %s", ty1);
974 if (op->id == opid3('+','+','P'))
978 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
979 compile_error(ast_ctx(exprs[0]), "assignment to constant `%s`", asvalue[0]->name);
981 if (ast_istype(exprs[0], ast_entfield)) {
982 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
984 (ast_expression*)parser->fold->imm_float[1]);
986 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
988 (ast_expression*)parser->fold->imm_float[1]);
991 case opid3('S','+','+'):
992 case opid3('S','-','-'):
994 if (exprs[0]->vtype != TYPE_FLOAT) {
995 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
996 compile_error(ast_ctx(exprs[0]), "invalid type for suffix increment: %s", ty1);
999 if (op->id == opid3('S','+','+')) {
1000 addop = INSTR_ADD_F;
1001 subop = INSTR_SUB_F;
1003 addop = INSTR_SUB_F;
1004 subop = INSTR_ADD_F;
1006 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1007 compile_error(ast_ctx(exprs[0]), "assignment to constant `%s`", asvalue[0]->name);
1009 if (ast_istype(exprs[0], ast_entfield)) {
1010 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
1012 (ast_expression*)parser->fold->imm_float[1]);
1014 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
1016 (ast_expression*)parser->fold->imm_float[1]);
1020 out = (ast_expression*)ast_binary_new(ctx, subop,
1022 (ast_expression*)parser->fold->imm_float[1]);
1024 case opid2('+','='):
1025 case opid2('-','='):
1026 if (exprs[0]->vtype != exprs[1]->vtype ||
1027 (exprs[0]->vtype != TYPE_VECTOR && exprs[0]->vtype != TYPE_FLOAT) )
1029 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1030 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1031 compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
1035 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1036 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1038 if (ast_istype(exprs[0], ast_entfield))
1039 assignop = type_storep_instr[exprs[0]->vtype];
1041 assignop = type_store_instr[exprs[0]->vtype];
1042 switch (exprs[0]->vtype) {
1044 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1045 (op->id == opid2('+','=') ? INSTR_ADD_F : INSTR_SUB_F),
1046 exprs[0], exprs[1]);
1049 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1050 (op->id == opid2('+','=') ? INSTR_ADD_V : INSTR_SUB_V),
1051 exprs[0], exprs[1]);
1054 compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
1055 type_name[exprs[0]->vtype],
1056 type_name[exprs[1]->vtype]);
1060 case opid2('*','='):
1061 case opid2('/','='):
1062 if (exprs[1]->vtype != TYPE_FLOAT ||
1063 !(exprs[0]->vtype == TYPE_FLOAT ||
1064 exprs[0]->vtype == TYPE_VECTOR))
1066 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1067 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1068 compile_error(ctx, "invalid types used in expression: %s and %s",
1072 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1073 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1075 if (ast_istype(exprs[0], ast_entfield))
1076 assignop = type_storep_instr[exprs[0]->vtype];
1078 assignop = type_store_instr[exprs[0]->vtype];
1079 switch (exprs[0]->vtype) {
1081 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1082 (op->id == opid2('*','=') ? INSTR_MUL_F : INSTR_DIV_F),
1083 exprs[0], exprs[1]);
1086 if (op->id == opid2('*','=')) {
1087 out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
1088 exprs[0], exprs[1]);
1090 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F,
1091 (ast_expression*)parser->fold->imm_float[1],
1094 compile_error(ctx, "internal error: failed to generate division");
1097 out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
1102 compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
1103 type_name[exprs[0]->vtype],
1104 type_name[exprs[1]->vtype]);
1108 case opid2('&','='):
1109 case opid2('|','='):
1110 if (NotSameType(TYPE_FLOAT)) {
1111 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1112 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1113 compile_error(ctx, "invalid types used in expression: %s and %s",
1117 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1118 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1120 if (ast_istype(exprs[0], ast_entfield))
1121 assignop = type_storep_instr[exprs[0]->vtype];
1123 assignop = type_store_instr[exprs[0]->vtype];
1124 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1125 (op->id == opid2('&','=') ? INSTR_BITAND : INSTR_BITOR),
1126 exprs[0], exprs[1]);
1128 case opid3('&','~','='):
1129 /* This is like: a &= ~(b);
1130 * But QC has no bitwise-not, so we implement it as
1133 if (NotSameType(TYPE_FLOAT)) {
1134 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1135 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1136 compile_error(ctx, "invalid types used in expression: %s and %s",
1140 if (ast_istype(exprs[0], ast_entfield))
1141 assignop = type_storep_instr[exprs[0]->vtype];
1143 assignop = type_store_instr[exprs[0]->vtype];
1144 out = (ast_expression*)ast_binary_new(ctx, INSTR_BITAND, exprs[0], exprs[1]);
1147 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1148 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1150 asbinstore = ast_binstore_new(ctx, assignop, INSTR_SUB_F, exprs[0], out);
1151 asbinstore->keep_dest = true;
1152 out = (ast_expression*)asbinstore;
1155 case opid2('~', 'P'):
1156 if (exprs[0]->vtype != TYPE_FLOAT) {
1157 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1158 compile_error(ast_ctx(exprs[0]), "invalid type for bit not: %s", ty1);
1161 if (!(out = fold_op(parser->fold, op, exprs)))
1162 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F, (ast_expression*)parser->fold->imm_float[2], exprs[0]);
1168 compile_error(ctx, "failed to apply operator %s", op->op);
1172 vec_push(sy->out, syexp(ctx, out));
1176 static bool parser_close_call(parser_t *parser, shunt *sy)
1178 /* was a function call */
1179 ast_expression *fun;
1180 ast_value *funval = NULL;
1184 size_t paramcount, i;
1186 fid = vec_last(sy->ops).off;
1187 vec_shrinkby(sy->ops, 1);
1189 /* out[fid] is the function
1190 * everything above is parameters...
1192 if (!vec_size(sy->argc)) {
1193 parseerror(parser, "internal error: no argument counter available");
1197 paramcount = vec_last(sy->argc);
1200 if (vec_size(sy->out) < fid) {
1201 parseerror(parser, "internal error: broken function call%lu < %lu+%lu\n",
1202 (unsigned long)vec_size(sy->out),
1204 (unsigned long)paramcount);
1208 fun = sy->out[fid].out;
1210 if (fun == intrinsic_debug_typestring) {
1212 if (fid+2 != vec_size(sy->out) ||
1213 vec_last(sy->out).block)
1215 parseerror(parser, "intrinsic __builtin_debug_typestring requires exactly 1 parameter");
1218 ast_type_to_string(vec_last(sy->out).out, ty, sizeof(ty));
1219 ast_unref(vec_last(sy->out).out);
1220 sy->out[fid] = syexp(ast_ctx(vec_last(sy->out).out),
1221 (ast_expression*)fold_constgen_string(parser->fold, ty, false));
1222 vec_shrinkby(sy->out, 1);
1226 call = ast_call_new(sy->ops[vec_size(sy->ops)].ctx, fun);
1230 if (fid+1 < vec_size(sy->out))
1233 if (fid+1 + paramcount != vec_size(sy->out)) {
1234 parseerror(parser, "internal error: parameter count mismatch: (%lu+1+%lu), %lu",
1235 (unsigned long)fid, (unsigned long)paramcount, (unsigned long)vec_size(sy->out));
1239 for (i = 0; i < paramcount; ++i)
1240 vec_push(call->params, sy->out[fid+1 + i].out);
1241 vec_shrinkby(sy->out, paramcount);
1242 (void)!ast_call_check_types(call, parser->function->vtype->expression.varparam);
1243 if (parser->max_param_count < paramcount)
1244 parser->max_param_count = paramcount;
1246 if (ast_istype(fun, ast_value)) {
1247 funval = (ast_value*)fun;
1248 if ((fun->flags & AST_FLAG_VARIADIC) &&
1249 !(/*funval->cvq == CV_CONST && */ funval->hasvalue && funval->constval.vfunc->builtin))
1251 call->va_count = (ast_expression*)fold_constgen_float(parser->fold, (qcfloat_t)paramcount);
1255 /* overwrite fid, the function, with a call */
1256 sy->out[fid] = syexp(call->expression.node.context, (ast_expression*)call);
1258 if (fun->vtype != TYPE_FUNCTION) {
1259 parseerror(parser, "not a function (%s)", type_name[fun->vtype]);
1264 parseerror(parser, "could not determine function return type");
1267 ast_value *fval = (ast_istype(fun, ast_value) ? ((ast_value*)fun) : NULL);
1269 if (fun->flags & AST_FLAG_DEPRECATED) {
1271 return !parsewarning(parser, WARN_DEPRECATED,
1272 "call to function (which is marked deprecated)\n",
1273 "-> it has been declared here: %s:%i",
1274 ast_ctx(fun).file, ast_ctx(fun).line);
1277 return !parsewarning(parser, WARN_DEPRECATED,
1278 "call to `%s` (which is marked deprecated)\n"
1279 "-> `%s` declared here: %s:%i",
1280 fval->name, fval->name, ast_ctx(fun).file, ast_ctx(fun).line);
1282 return !parsewarning(parser, WARN_DEPRECATED,
1283 "call to `%s` (deprecated: %s)\n"
1284 "-> `%s` declared here: %s:%i",
1285 fval->name, fval->desc, fval->name, ast_ctx(fun).file,
1289 if (vec_size(fun->params) != paramcount &&
1290 !((fun->flags & AST_FLAG_VARIADIC) &&
1291 vec_size(fun->params) < paramcount))
1293 const char *fewmany = (vec_size(fun->params) > paramcount) ? "few" : "many";
1295 return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT,
1296 "too %s parameters for call to %s: expected %i, got %i\n"
1297 " -> `%s` has been declared here: %s:%i",
1298 fewmany, fval->name, (int)vec_size(fun->params), (int)paramcount,
1299 fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
1301 return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT,
1302 "too %s parameters for function call: expected %i, got %i\n"
1303 " -> it has been declared here: %s:%i",
1304 fewmany, (int)vec_size(fun->params), (int)paramcount,
1305 ast_ctx(fun).file, (int)ast_ctx(fun).line);
1312 static bool parser_close_paren(parser_t *parser, shunt *sy)
1314 if (!vec_size(sy->ops)) {
1315 parseerror(parser, "unmatched closing paren");
1319 while (vec_size(sy->ops)) {
1320 if (vec_last(sy->ops).isparen) {
1321 if (vec_last(sy->paren) == PAREN_FUNC) {
1323 if (!parser_close_call(parser, sy))
1327 if (vec_last(sy->paren) == PAREN_EXPR) {
1329 if (!vec_size(sy->out)) {
1330 compile_error(vec_last(sy->ops).ctx, "empty paren expression");
1331 vec_shrinkby(sy->ops, 1);
1334 vec_shrinkby(sy->ops, 1);
1337 if (vec_last(sy->paren) == PAREN_INDEX) {
1339 /* pop off the parenthesis */
1340 vec_shrinkby(sy->ops, 1);
1341 /* then apply the index operator */
1342 if (!parser_sy_apply_operator(parser, sy))
1346 if (vec_last(sy->paren) == PAREN_TERNARY1) {
1347 vec_last(sy->paren) = PAREN_TERNARY2;
1348 /* pop off the parenthesis */
1349 vec_shrinkby(sy->ops, 1);
1352 compile_error(vec_last(sy->ops).ctx, "invalid parenthesis");
1355 if (!parser_sy_apply_operator(parser, sy))
1361 static void parser_reclassify_token(parser_t *parser)
1364 if (parser->tok >= TOKEN_START)
1366 for (i = 0; i < operator_count; ++i) {
1367 if (!strcmp(parser_tokval(parser), operators[i].op)) {
1368 parser->tok = TOKEN_OPERATOR;
1374 static ast_expression* parse_vararg_do(parser_t *parser)
1376 ast_expression *idx, *out;
1378 ast_value *funtype = parser->function->vtype;
1379 lex_ctx_t ctx = parser_ctx(parser);
1381 if (!parser->function->varargs) {
1382 parseerror(parser, "function has no variable argument list");
1386 if (!parser_next(parser) || parser->tok != '(') {
1387 parseerror(parser, "expected parameter index and type in parenthesis");
1390 if (!parser_next(parser)) {
1391 parseerror(parser, "error parsing parameter index");
1395 idx = parse_expression_leave(parser, true, false, false);
1399 if (parser->tok != ',') {
1400 if (parser->tok != ')') {
1402 parseerror(parser, "expected comma after parameter index");
1405 /* vararg piping: ...(start) */
1406 out = (ast_expression*)ast_argpipe_new(ctx, idx);
1410 if (!parser_next(parser) || (parser->tok != TOKEN_IDENT && parser->tok != TOKEN_TYPENAME)) {
1412 parseerror(parser, "expected typename for vararg");
1416 typevar = parse_typename(parser, NULL, NULL);
1422 if (parser->tok != ')') {
1424 ast_delete(typevar);
1425 parseerror(parser, "expected closing paren");
1429 if (funtype->expression.varparam &&
1430 !ast_compare_type((ast_expression*)typevar, (ast_expression*)funtype->expression.varparam))
1434 ast_type_to_string((ast_expression*)typevar, ty1, sizeof(ty1));
1435 ast_type_to_string((ast_expression*)funtype->expression.varparam, ty2, sizeof(ty2));
1436 compile_error(ast_ctx(typevar),
1437 "function was declared to take varargs of type `%s`, requested type is: %s",
1441 out = (ast_expression*)ast_array_index_new(ctx, (ast_expression*)(parser->function->varargs), idx);
1442 ast_type_adopt(out, typevar);
1443 ast_delete(typevar);
1447 static ast_expression* parse_vararg(parser_t *parser)
1449 bool old_noops = parser->lex->flags.noops;
1451 ast_expression *out;
1453 parser->lex->flags.noops = true;
1454 out = parse_vararg_do(parser);
1456 parser->lex->flags.noops = old_noops;
1460 /* not to be exposed */
1461 extern bool ftepp_predef_exists(const char *name);
1463 static bool parse_sya_operand(parser_t *parser, shunt *sy, bool with_labels)
1465 if (OPTS_FLAG(TRANSLATABLE_STRINGS) &&
1466 parser->tok == TOKEN_IDENT &&
1467 !strcmp(parser_tokval(parser), "_"))
1469 /* a translatable string */
1472 parser->lex->flags.noops = true;
1473 if (!parser_next(parser) || parser->tok != '(') {
1474 parseerror(parser, "use _(\"string\") to create a translatable string constant");
1477 parser->lex->flags.noops = false;
1478 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
1479 parseerror(parser, "expected a constant string in translatable-string extension");
1482 val = (ast_value*)fold_constgen_string(parser->fold, parser_tokval(parser), true);
1485 vec_push(sy->out, syexp(parser_ctx(parser), (ast_expression*)val));
1487 if (!parser_next(parser) || parser->tok != ')') {
1488 parseerror(parser, "expected closing paren after translatable string");
1493 else if (parser->tok == TOKEN_DOTS)
1496 if (!OPTS_FLAG(VARIADIC_ARGS)) {
1497 parseerror(parser, "cannot access varargs (try -fvariadic-args)");
1500 va = parse_vararg(parser);
1503 vec_push(sy->out, syexp(parser_ctx(parser), va));
1506 else if (parser->tok == TOKEN_FLOATCONST) {
1507 ast_expression *val = fold_constgen_float(parser->fold, (parser_token(parser)->constval.f));
1510 vec_push(sy->out, syexp(parser_ctx(parser), val));
1513 else if (parser->tok == TOKEN_INTCONST || parser->tok == TOKEN_CHARCONST) {
1514 ast_expression *val = fold_constgen_float(parser->fold, (qcfloat_t)(parser_token(parser)->constval.i));
1517 vec_push(sy->out, syexp(parser_ctx(parser), val));
1520 else if (parser->tok == TOKEN_STRINGCONST) {
1521 ast_expression *val = fold_constgen_string(parser->fold, parser_tokval(parser), false);
1524 vec_push(sy->out, syexp(parser_ctx(parser), val));
1527 else if (parser->tok == TOKEN_VECTORCONST) {
1528 ast_expression *val = fold_constgen_vector(parser->fold, parser_token(parser)->constval.v);
1531 vec_push(sy->out, syexp(parser_ctx(parser), val));
1534 else if (parser->tok == TOKEN_IDENT)
1536 const char *ctoken = parser_tokval(parser);
1537 ast_expression *prev = vec_size(sy->out) ? vec_last(sy->out).out : NULL;
1538 ast_expression *var;
1539 /* a_vector.{x,y,z} */
1540 if (!vec_size(sy->ops) ||
1541 !vec_last(sy->ops).etype ||
1542 operators[vec_last(sy->ops).etype-1].id != opid1('.') ||
1543 (prev >= intrinsic_debug_typestring &&
1544 prev <= intrinsic_debug_typestring))
1546 /* When adding more intrinsics, fix the above condition */
1549 if (prev && prev->vtype == TYPE_VECTOR && ctoken[0] >= 'x' && ctoken[0] <= 'z' && !ctoken[1])
1551 var = (ast_expression*)parser->const_vec[ctoken[0]-'x'];
1553 var = parser_find_var(parser, parser_tokval(parser));
1555 var = parser_find_field(parser, parser_tokval(parser));
1557 if (!var && with_labels) {
1558 var = (ast_expression*)parser_find_label(parser, parser_tokval(parser));
1560 ast_label *lbl = ast_label_new(parser_ctx(parser), parser_tokval(parser), true);
1561 var = (ast_expression*)lbl;
1562 vec_push(parser->labels, lbl);
1565 if (!var && !strcmp(parser_tokval(parser), "__FUNC__"))
1566 var = (ast_expression*)fold_constgen_string(parser->fold, parser->function->name, false);
1569 if (!strcmp(parser_tokval(parser), "__builtin_debug_typestring")) {
1570 var = (ast_expression*)intrinsic_debug_typestring;
1572 /* now we try for the real intrinsic hashtable. If the string
1573 * begins with __builtin, we simply skip past it, otherwise we
1574 * use the identifier as is.
1576 else if (!strncmp(parser_tokval(parser), "__builtin_", 10)) {
1577 var = intrin_func(parser, parser_tokval(parser) + 10 /* skip __builtin */);
1581 char *correct = NULL;
1585 * sometimes people use preprocessing predefs without enabling them
1586 * i've done this thousands of times already myself. Lets check for
1587 * it in the predef table. And diagnose it better :)
1589 if (!OPTS_FLAG(FTEPP_PREDEFS) && ftepp_predef_exists(parser_tokval(parser))) {
1590 parseerror(parser, "unexpected identifier: %s (use -fftepp-predef to enable pre-defined macros)", parser_tokval(parser));
1595 * TODO: determine the best score for the identifier: be it
1596 * a variable, a field.
1598 * We should also consider adding correction tables for
1599 * other things as well.
1601 if (OPTS_OPTION_BOOL(OPTION_CORRECTION) && strlen(parser_tokval(parser)) <= 16) {
1603 correct_init(&corr);
1605 for (i = 0; i < vec_size(parser->correct_variables); i++) {
1606 correct = correct_str(&corr, parser->correct_variables[i], parser_tokval(parser));
1607 if (strcmp(correct, parser_tokval(parser))) {
1614 correct_free(&corr);
1617 parseerror(parser, "unexpected identifier: %s (did you mean %s?)", parser_tokval(parser), correct);
1622 parseerror(parser, "unexpected identifier: %s", parser_tokval(parser));
1628 if (ast_istype(var, ast_value)) {
1629 ((ast_value*)var)->uses++;
1631 else if (ast_istype(var, ast_member)) {
1632 ast_member *mem = (ast_member*)var;
1633 if (ast_istype(mem->owner, ast_value))
1634 ((ast_value*)(mem->owner))->uses++;
1637 vec_push(sy->out, syexp(parser_ctx(parser), var));
1640 parseerror(parser, "unexpected token `%s`", parser_tokval(parser));
1644 static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels)
1646 ast_expression *expr = NULL;
1649 bool wantop = false;
1650 /* only warn once about an assignment in a truth value because the current code
1651 * would trigger twice on: if(a = b && ...), once for the if-truth-value, once for the && part
1653 bool warn_truthvalue = true;
1655 /* count the parens because an if starts with one, so the
1656 * end of a condition is an unmatched closing paren
1660 memset(&sy, 0, sizeof(sy));
1662 parser->lex->flags.noops = false;
1664 parser_reclassify_token(parser);
1668 if (parser->tok == TOKEN_TYPENAME) {
1669 parseerror(parser, "unexpected typename `%s`", parser_tokval(parser));
1673 if (parser->tok == TOKEN_OPERATOR)
1675 /* classify the operator */
1676 const oper_info *op;
1677 const oper_info *olast = NULL;
1679 for (o = 0; o < operator_count; ++o) {
1680 if (((!(operators[o].flags & OP_PREFIX) == !!wantop)) &&
1681 /* !(operators[o].flags & OP_SUFFIX) && / * remove this */
1682 !strcmp(parser_tokval(parser), operators[o].op))
1687 if (o == operator_count) {
1688 compile_error(parser_ctx(parser), "unknown operator: %s", parser_tokval(parser));
1691 /* found an operator */
1694 /* when declaring variables, a comma starts a new variable */
1695 if (op->id == opid1(',') && !vec_size(sy.paren) && stopatcomma) {
1696 /* fixup the token */
1701 /* a colon without a pervious question mark cannot be a ternary */
1702 if (!ternaries && op->id == opid2(':','?')) {
1707 if (op->id == opid1(',')) {
1708 if (vec_size(sy.paren) && vec_last(sy.paren) == PAREN_TERNARY2) {
1709 (void)!parsewarning(parser, WARN_TERNARY_PRECEDENCE, "suggesting parenthesis around ternary expression");
1713 if (vec_size(sy.ops) && !vec_last(sy.ops).isparen)
1714 olast = &operators[vec_last(sy.ops).etype-1];
1716 #define IsAssignOp(x) (\
1717 (x) == opid1('=') || \
1718 (x) == opid2('+','=') || \
1719 (x) == opid2('-','=') || \
1720 (x) == opid2('*','=') || \
1721 (x) == opid2('/','=') || \
1722 (x) == opid2('%','=') || \
1723 (x) == opid2('&','=') || \
1724 (x) == opid2('|','=') || \
1725 (x) == opid3('&','~','=') \
1727 if (warn_truthvalue) {
1728 if ( (olast && IsAssignOp(olast->id) && (op->id == opid2('&','&') || op->id == opid2('|','|'))) ||
1729 (olast && IsAssignOp(op->id) && (olast->id == opid2('&','&') || olast->id == opid2('|','|'))) ||
1730 (truthvalue && !vec_size(sy.paren) && IsAssignOp(op->id))
1733 (void)!parsewarning(parser, WARN_PARENTHESIS, "suggesting parenthesis around assignment used as truth value");
1734 warn_truthvalue = false;
1739 (op->prec < olast->prec) ||
1740 (op->assoc == ASSOC_LEFT && op->prec <= olast->prec) ) )
1742 if (!parser_sy_apply_operator(parser, &sy))
1744 if (vec_size(sy.ops) && !vec_last(sy.ops).isparen)
1745 olast = &operators[vec_last(sy.ops).etype-1];
1750 if (op->id == opid1('(')) {
1752 size_t sycount = vec_size(sy.out);
1753 /* we expected an operator, this is the function-call operator */
1754 vec_push(sy.paren, PAREN_FUNC);
1755 vec_push(sy.ops, syparen(parser_ctx(parser), sycount-1));
1756 vec_push(sy.argc, 0);
1758 vec_push(sy.paren, PAREN_EXPR);
1759 vec_push(sy.ops, syparen(parser_ctx(parser), 0));
1762 } else if (op->id == opid1('[')) {
1764 parseerror(parser, "unexpected array subscript");
1767 vec_push(sy.paren, PAREN_INDEX);
1768 /* push both the operator and the paren, this makes life easier */
1769 vec_push(sy.ops, syop(parser_ctx(parser), op));
1770 vec_push(sy.ops, syparen(parser_ctx(parser), 0));
1772 } else if (op->id == opid2('?',':')) {
1773 vec_push(sy.ops, syop(parser_ctx(parser), op));
1774 vec_push(sy.ops, syparen(parser_ctx(parser), 0));
1777 vec_push(sy.paren, PAREN_TERNARY1);
1778 } else if (op->id == opid2(':','?')) {
1779 if (!vec_size(sy.paren)) {
1780 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
1783 if (vec_last(sy.paren) != PAREN_TERNARY1) {
1784 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
1787 if (!parser_close_paren(parser, &sy))
1789 vec_push(sy.ops, syop(parser_ctx(parser), op));
1793 vec_push(sy.ops, syop(parser_ctx(parser), op));
1794 wantop = !!(op->flags & OP_SUFFIX);
1797 else if (parser->tok == ')') {
1798 while (vec_size(sy.paren) && vec_last(sy.paren) == PAREN_TERNARY2) {
1799 if (!parser_sy_apply_operator(parser, &sy))
1802 if (!vec_size(sy.paren))
1805 if (vec_last(sy.paren) == PAREN_TERNARY1) {
1806 parseerror(parser, "mismatched parentheses (closing paren in ternary expression?)");
1809 if (!parser_close_paren(parser, &sy))
1812 /* must be a function call without parameters */
1813 if (vec_last(sy.paren) != PAREN_FUNC) {
1814 parseerror(parser, "closing paren in invalid position");
1817 if (!parser_close_paren(parser, &sy))
1822 else if (parser->tok == '(') {
1823 parseerror(parser, "internal error: '(' should be classified as operator");
1826 else if (parser->tok == '[') {
1827 parseerror(parser, "internal error: '[' should be classified as operator");
1830 else if (parser->tok == ']') {
1831 while (vec_size(sy.paren) && vec_last(sy.paren) == PAREN_TERNARY2) {
1832 if (!parser_sy_apply_operator(parser, &sy))
1835 if (!vec_size(sy.paren))
1837 if (vec_last(sy.paren) != PAREN_INDEX) {
1838 parseerror(parser, "mismatched parentheses, unexpected ']'");
1841 if (!parser_close_paren(parser, &sy))
1846 if (!parse_sya_operand(parser, &sy, with_labels))
1849 if (vec_size(sy.paren) && vec_last(sy.ops).isparen && vec_last(sy.paren) == PAREN_FUNC)
1850 vec_last(sy.argc)++;
1855 /* in this case we might want to allow constant string concatenation */
1856 bool concatenated = false;
1857 if (parser->tok == TOKEN_STRINGCONST && vec_size(sy.out)) {
1858 ast_expression *lexpr = vec_last(sy.out).out;
1859 if (ast_istype(lexpr, ast_value)) {
1860 ast_value *last = (ast_value*)lexpr;
1861 if (last->isimm == true && last->cvq == CV_CONST &&
1862 last->hasvalue && last->expression.vtype == TYPE_STRING)
1864 char *newstr = NULL;
1865 util_asprintf(&newstr, "%s%s", last->constval.vstring, parser_tokval(parser));
1866 vec_last(sy.out).out = (ast_expression*)fold_constgen_string(parser->fold, newstr, false);
1868 concatenated = true;
1872 if (!concatenated) {
1873 parseerror(parser, "expected operator or end of statement");
1878 if (!parser_next(parser)) {
1881 if (parser->tok == ';' ||
1882 ((!vec_size(sy.paren) || (vec_size(sy.paren) == 1 && vec_last(sy.paren) == PAREN_TERNARY2)) &&
1883 (parser->tok == ']' || parser->tok == ')' || parser->tok == '}')))
1889 while (vec_size(sy.ops)) {
1890 if (!parser_sy_apply_operator(parser, &sy))
1894 parser->lex->flags.noops = true;
1895 if (vec_size(sy.out) != 1) {
1896 parseerror(parser, "expression with not 1 but %lu output values...", (unsigned long) vec_size(sy.out));
1899 expr = sy.out[0].out;
1902 if (vec_size(sy.paren)) {
1903 parseerror(parser, "internal error: vec_size(sy.paren) = %lu", (unsigned long)vec_size(sy.paren));
1911 parser->lex->flags.noops = true;
1912 for (i = 0; i < vec_size(sy.out); ++i) {
1914 ast_unref(sy.out[i].out);
1923 static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels)
1925 ast_expression *e = parse_expression_leave(parser, stopatcomma, false, with_labels);
1928 if (parser->tok != ';') {
1929 parseerror(parser, "semicolon expected after expression");
1933 if (!parser_next(parser)) {
1940 static void parser_enterblock(parser_t *parser)
1942 vec_push(parser->variables, util_htnew(PARSER_HT_SIZE));
1943 vec_push(parser->_blocklocals, vec_size(parser->_locals));
1944 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
1945 vec_push(parser->_blocktypedefs, vec_size(parser->_typedefs));
1946 vec_push(parser->_block_ctx, parser_ctx(parser));
1949 vec_push(parser->correct_variables, correct_trie_new());
1950 vec_push(parser->correct_variables_score, NULL);
1953 static bool parser_leaveblock(parser_t *parser)
1956 size_t locals, typedefs;
1958 if (vec_size(parser->variables) <= PARSER_HT_LOCALS) {
1959 parseerror(parser, "internal error: parser_leaveblock with no block");
1963 util_htdel(vec_last(parser->variables));
1964 correct_del(vec_last(parser->correct_variables), vec_last(parser->correct_variables_score));
1966 vec_pop(parser->variables);
1967 vec_pop(parser->correct_variables);
1968 vec_pop(parser->correct_variables_score);
1969 if (!vec_size(parser->_blocklocals)) {
1970 parseerror(parser, "internal error: parser_leaveblock with no block (2)");
1974 locals = vec_last(parser->_blocklocals);
1975 vec_pop(parser->_blocklocals);
1976 while (vec_size(parser->_locals) != locals) {
1977 ast_expression *e = vec_last(parser->_locals);
1978 ast_value *v = (ast_value*)e;
1979 vec_pop(parser->_locals);
1980 if (ast_istype(e, ast_value) && !v->uses) {
1981 if (compile_warning(ast_ctx(v), WARN_UNUSED_VARIABLE, "unused variable: `%s`", v->name))
1986 typedefs = vec_last(parser->_blocktypedefs);
1987 while (vec_size(parser->_typedefs) != typedefs) {
1988 ast_delete(vec_last(parser->_typedefs));
1989 vec_pop(parser->_typedefs);
1991 util_htdel(vec_last(parser->typedefs));
1992 vec_pop(parser->typedefs);
1994 vec_pop(parser->_block_ctx);
1999 static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e)
2001 vec_push(parser->_locals, e);
2002 util_htset(vec_last(parser->variables), name, (void*)e);
2006 vec_last(parser->correct_variables),
2007 &vec_last(parser->correct_variables_score),
2012 static void parser_addglobal(parser_t *parser, const char *name, ast_expression *e)
2014 vec_push(parser->globals, e);
2015 util_htset(parser->htglobals, name, e);
2019 parser->correct_variables[0],
2020 &parser->correct_variables_score[0],
2025 static ast_expression* process_condition(parser_t *parser, ast_expression *cond, bool *_ifnot)
2029 ast_expression *prev;
2031 if (cond->vtype == TYPE_VOID || cond->vtype >= TYPE_VARIANT) {
2033 ast_type_to_string(cond, ty, sizeof(ty));
2034 compile_error(ast_ctx(cond), "invalid type for if() condition: %s", ty);
2037 if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && cond->vtype == TYPE_STRING)
2040 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_S, cond);
2043 parseerror(parser, "internal error: failed to process condition");
2048 else if (OPTS_FLAG(CORRECT_LOGIC) && cond->vtype == TYPE_VECTOR)
2050 /* vector types need to be cast to true booleans */
2051 ast_binary *bin = (ast_binary*)cond;
2052 if (!OPTS_FLAG(PERL_LOGIC) || !ast_istype(cond, ast_binary) || !(bin->op == INSTR_AND || bin->op == INSTR_OR))
2054 /* in perl-logic, AND and OR take care of the -fcorrect-logic */
2056 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_V, cond);
2059 parseerror(parser, "internal error: failed to process condition");
2066 unary = (ast_unary*)cond;
2067 /* ast_istype dereferences cond, should test here for safety */
2068 while (cond && ast_istype(cond, ast_unary) && unary->op == INSTR_NOT_F)
2070 cond = unary->operand;
2071 unary->operand = NULL;
2074 unary = (ast_unary*)cond;
2078 parseerror(parser, "internal error: failed to process condition");
2080 if (ifnot) *_ifnot = !*_ifnot;
2084 static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out)
2087 ast_expression *cond, *ontrue = NULL, *onfalse = NULL;
2090 lex_ctx_t ctx = parser_ctx(parser);
2092 (void)block; /* not touching */
2094 /* skip the 'if', parse an optional 'not' and check for an opening paren */
2095 if (!parser_next(parser)) {
2096 parseerror(parser, "expected condition or 'not'");
2099 if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "not")) {
2101 if (!parser_next(parser)) {
2102 parseerror(parser, "expected condition in parenthesis");
2106 if (parser->tok != '(') {
2107 parseerror(parser, "expected 'if' condition in parenthesis");
2110 /* parse into the expression */
2111 if (!parser_next(parser)) {
2112 parseerror(parser, "expected 'if' condition after opening paren");
2115 /* parse the condition */
2116 cond = parse_expression_leave(parser, false, true, false);
2120 if (parser->tok != ')') {
2121 parseerror(parser, "expected closing paren after 'if' condition");
2125 /* parse into the 'then' branch */
2126 if (!parser_next(parser)) {
2127 parseerror(parser, "expected statement for on-true branch of 'if'");
2131 if (!parse_statement_or_block(parser, &ontrue)) {
2136 ontrue = (ast_expression*)ast_block_new(parser_ctx(parser));
2137 /* check for an else */
2138 if (!strcmp(parser_tokval(parser), "else")) {
2139 /* parse into the 'else' branch */
2140 if (!parser_next(parser)) {
2141 parseerror(parser, "expected on-false branch after 'else'");
2146 if (!parse_statement_or_block(parser, &onfalse)) {
2153 cond = process_condition(parser, cond, &ifnot);
2155 if (ontrue) ast_delete(ontrue);
2156 if (onfalse) ast_delete(onfalse);
2161 ifthen = ast_ifthen_new(ctx, cond, onfalse, ontrue);
2163 ifthen = ast_ifthen_new(ctx, cond, ontrue, onfalse);
2164 *out = (ast_expression*)ifthen;
2168 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out);
2169 static bool parse_while(parser_t *parser, ast_block *block, ast_expression **out)
2174 /* skip the 'while' and get the body */
2175 if (!parser_next(parser)) {
2176 if (OPTS_FLAG(LOOP_LABELS))
2177 parseerror(parser, "expected loop label or 'while' condition in parenthesis");
2179 parseerror(parser, "expected 'while' condition in parenthesis");
2183 if (parser->tok == ':') {
2184 if (!OPTS_FLAG(LOOP_LABELS))
2185 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2186 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2187 parseerror(parser, "expected loop label");
2190 label = util_strdup(parser_tokval(parser));
2191 if (!parser_next(parser)) {
2193 parseerror(parser, "expected 'while' condition in parenthesis");
2198 if (parser->tok != '(') {
2199 parseerror(parser, "expected 'while' condition in parenthesis");
2203 vec_push(parser->breaks, label);
2204 vec_push(parser->continues, label);
2206 rv = parse_while_go(parser, block, out);
2209 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2210 parseerror(parser, "internal error: label stack corrupted");
2216 vec_pop(parser->breaks);
2217 vec_pop(parser->continues);
2222 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out)
2225 ast_expression *cond, *ontrue;
2229 lex_ctx_t ctx = parser_ctx(parser);
2231 (void)block; /* not touching */
2233 /* parse into the expression */
2234 if (!parser_next(parser)) {
2235 parseerror(parser, "expected 'while' condition after opening paren");
2238 /* parse the condition */
2239 cond = parse_expression_leave(parser, false, true, false);
2243 if (parser->tok != ')') {
2244 parseerror(parser, "expected closing paren after 'while' condition");
2248 /* parse into the 'then' branch */
2249 if (!parser_next(parser)) {
2250 parseerror(parser, "expected while-loop body");
2254 if (!parse_statement_or_block(parser, &ontrue)) {
2259 cond = process_condition(parser, cond, &ifnot);
2264 aloop = ast_loop_new(ctx, NULL, cond, ifnot, NULL, false, NULL, ontrue);
2265 *out = (ast_expression*)aloop;
2269 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out);
2270 static bool parse_dowhile(parser_t *parser, ast_block *block, ast_expression **out)
2275 /* skip the 'do' and get the body */
2276 if (!parser_next(parser)) {
2277 if (OPTS_FLAG(LOOP_LABELS))
2278 parseerror(parser, "expected loop label or body");
2280 parseerror(parser, "expected loop body");
2284 if (parser->tok == ':') {
2285 if (!OPTS_FLAG(LOOP_LABELS))
2286 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2287 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2288 parseerror(parser, "expected loop label");
2291 label = util_strdup(parser_tokval(parser));
2292 if (!parser_next(parser)) {
2294 parseerror(parser, "expected loop body");
2299 vec_push(parser->breaks, label);
2300 vec_push(parser->continues, label);
2302 rv = parse_dowhile_go(parser, block, out);
2305 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2306 parseerror(parser, "internal error: label stack corrupted");
2309 * Test for NULL otherwise ast_delete dereferences null pointer
2317 vec_pop(parser->breaks);
2318 vec_pop(parser->continues);
2323 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out)
2326 ast_expression *cond, *ontrue;
2330 lex_ctx_t ctx = parser_ctx(parser);
2332 (void)block; /* not touching */
2334 if (!parse_statement_or_block(parser, &ontrue))
2337 /* expect the "while" */
2338 if (parser->tok != TOKEN_KEYWORD ||
2339 strcmp(parser_tokval(parser), "while"))
2341 parseerror(parser, "expected 'while' and condition");
2346 /* skip the 'while' and check for opening paren */
2347 if (!parser_next(parser) || parser->tok != '(') {
2348 parseerror(parser, "expected 'while' condition in parenthesis");
2352 /* parse into the expression */
2353 if (!parser_next(parser)) {
2354 parseerror(parser, "expected 'while' condition after opening paren");
2358 /* parse the condition */
2359 cond = parse_expression_leave(parser, false, true, false);
2363 if (parser->tok != ')') {
2364 parseerror(parser, "expected closing paren after 'while' condition");
2370 if (!parser_next(parser) || parser->tok != ';') {
2371 parseerror(parser, "expected semicolon after condition");
2377 if (!parser_next(parser)) {
2378 parseerror(parser, "parse error");
2384 cond = process_condition(parser, cond, &ifnot);
2389 aloop = ast_loop_new(ctx, NULL, NULL, false, cond, ifnot, NULL, ontrue);
2390 *out = (ast_expression*)aloop;
2394 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out);
2395 static bool parse_for(parser_t *parser, ast_block *block, ast_expression **out)
2400 /* skip the 'for' and check for opening paren */
2401 if (!parser_next(parser)) {
2402 if (OPTS_FLAG(LOOP_LABELS))
2403 parseerror(parser, "expected loop label or 'for' expressions in parenthesis");
2405 parseerror(parser, "expected 'for' expressions in parenthesis");
2409 if (parser->tok == ':') {
2410 if (!OPTS_FLAG(LOOP_LABELS))
2411 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2412 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2413 parseerror(parser, "expected loop label");
2416 label = util_strdup(parser_tokval(parser));
2417 if (!parser_next(parser)) {
2419 parseerror(parser, "expected 'for' expressions in parenthesis");
2424 if (parser->tok != '(') {
2425 parseerror(parser, "expected 'for' expressions in parenthesis");
2429 vec_push(parser->breaks, label);
2430 vec_push(parser->continues, label);
2432 rv = parse_for_go(parser, block, out);
2435 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2436 parseerror(parser, "internal error: label stack corrupted");
2442 vec_pop(parser->breaks);
2443 vec_pop(parser->continues);
2447 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out)
2450 ast_expression *initexpr, *cond, *increment, *ontrue;
2455 lex_ctx_t ctx = parser_ctx(parser);
2457 parser_enterblock(parser);
2464 /* parse into the expression */
2465 if (!parser_next(parser)) {
2466 parseerror(parser, "expected 'for' initializer after opening paren");
2471 if (parser->tok == TOKEN_IDENT)
2472 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
2474 if (typevar || parser->tok == TOKEN_TYPENAME) {
2476 if (OPTS_OPTION_U32(OPTION_STANDARD) != COMPILER_GMQCC) {
2477 if (parsewarning(parser, WARN_EXTENSIONS,
2478 "current standard does not allow variable declarations in for-loop initializers"))
2482 if (!parse_variable(parser, block, true, CV_VAR, typevar, false, false, 0, NULL))
2485 else if (parser->tok != ';')
2487 initexpr = parse_expression_leave(parser, false, false, false);
2492 /* move on to condition */
2493 if (parser->tok != ';') {
2494 parseerror(parser, "expected semicolon after for-loop initializer");
2497 if (!parser_next(parser)) {
2498 parseerror(parser, "expected for-loop condition");
2502 /* parse the condition */
2503 if (parser->tok != ';') {
2504 cond = parse_expression_leave(parser, false, true, false);
2509 /* move on to incrementor */
2510 if (parser->tok != ';') {
2511 parseerror(parser, "expected semicolon after for-loop initializer");
2514 if (!parser_next(parser)) {
2515 parseerror(parser, "expected for-loop condition");
2519 /* parse the incrementor */
2520 if (parser->tok != ')') {
2521 lex_ctx_t condctx = parser_ctx(parser);
2522 increment = parse_expression_leave(parser, false, false, false);
2525 if (!ast_side_effects(increment)) {
2526 if (compile_warning(condctx, WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
2532 if (parser->tok != ')') {
2533 parseerror(parser, "expected closing paren after 'for-loop' incrementor");
2536 /* parse into the 'then' branch */
2537 if (!parser_next(parser)) {
2538 parseerror(parser, "expected for-loop body");
2541 if (!parse_statement_or_block(parser, &ontrue))
2545 cond = process_condition(parser, cond, &ifnot);
2549 aloop = ast_loop_new(ctx, initexpr, cond, ifnot, NULL, false, increment, ontrue);
2550 *out = (ast_expression*)aloop;
2552 if (!parser_leaveblock(parser)) {
2558 if (initexpr) ast_unref(initexpr);
2559 if (cond) ast_unref(cond);
2560 if (increment) ast_unref(increment);
2561 (void)!parser_leaveblock(parser);
2565 static bool parse_return(parser_t *parser, ast_block *block, ast_expression **out)
2567 ast_expression *exp = NULL;
2568 ast_expression *var = NULL;
2569 ast_return *ret = NULL;
2570 ast_value *retval = parser->function->return_value;
2571 ast_value *expected = parser->function->vtype;
2573 lex_ctx_t ctx = parser_ctx(parser);
2575 (void)block; /* not touching */
2577 if (!parser_next(parser)) {
2578 parseerror(parser, "expected return expression");
2582 /* return assignments */
2583 if (parser->tok == '=') {
2584 if (!OPTS_FLAG(RETURN_ASSIGNMENTS)) {
2585 parseerror(parser, "return assignments not activated, try using -freturn-assigments");
2589 if (type_store_instr[expected->expression.next->vtype] == VINSTR_END) {
2591 ast_type_to_string(expected->expression.next, ty1, sizeof(ty1));
2592 parseerror(parser, "invalid return type: `%s'", ty1);
2596 if (!parser_next(parser)) {
2597 parseerror(parser, "expected return assignment expression");
2601 if (!(exp = parse_expression_leave(parser, false, false, false)))
2604 /* prepare the return value */
2606 retval = ast_value_new(ctx, "#LOCAL_RETURN", TYPE_VOID);
2607 ast_type_adopt(retval, expected->expression.next);
2608 parser->function->return_value = retval;
2611 if (!ast_compare_type(exp, (ast_expression*)retval)) {
2612 char ty1[1024], ty2[1024];
2613 ast_type_to_string(exp, ty1, sizeof(ty1));
2614 ast_type_to_string(&retval->expression, ty2, sizeof(ty2));
2615 parseerror(parser, "invalid type for return value: `%s', expected `%s'", ty1, ty2);
2618 /* store to 'return' local variable */
2619 var = (ast_expression*)ast_store_new(
2621 type_store_instr[expected->expression.next->vtype],
2622 (ast_expression*)retval, exp);
2629 if (parser->tok != ';')
2630 parseerror(parser, "missing semicolon after return assignment");
2631 else if (!parser_next(parser))
2632 parseerror(parser, "parse error after return assignment");
2638 if (parser->tok != ';') {
2639 exp = parse_expression(parser, false, false);
2643 if (exp->vtype != TYPE_NIL &&
2644 exp->vtype != ((ast_expression*)expected)->next->vtype)
2646 parseerror(parser, "return with invalid expression");
2649 ret = ast_return_new(ctx, exp);
2655 if (!parser_next(parser))
2656 parseerror(parser, "parse error");
2658 if (!retval && expected->expression.next->vtype != TYPE_VOID)
2660 (void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value");
2662 ret = ast_return_new(ctx, (ast_expression*)retval);
2664 *out = (ast_expression*)ret;
2668 static bool parse_break_continue(parser_t *parser, ast_block *block, ast_expression **out, bool is_continue)
2671 unsigned int levels = 0;
2672 lex_ctx_t ctx = parser_ctx(parser);
2673 const char **loops = (is_continue ? parser->continues : parser->breaks);
2675 (void)block; /* not touching */
2676 if (!parser_next(parser)) {
2677 parseerror(parser, "expected semicolon or loop label");
2681 if (!vec_size(loops)) {
2683 parseerror(parser, "`continue` can only be used inside loops");
2685 parseerror(parser, "`break` can only be used inside loops or switches");
2688 if (parser->tok == TOKEN_IDENT) {
2689 if (!OPTS_FLAG(LOOP_LABELS))
2690 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2691 i = vec_size(loops);
2693 if (loops[i] && !strcmp(loops[i], parser_tokval(parser)))
2696 parseerror(parser, "no such loop to %s: `%s`",
2697 (is_continue ? "continue" : "break out of"),
2698 parser_tokval(parser));
2703 if (!parser_next(parser)) {
2704 parseerror(parser, "expected semicolon");
2709 if (parser->tok != ';') {
2710 parseerror(parser, "expected semicolon");
2714 if (!parser_next(parser))
2715 parseerror(parser, "parse error");
2717 *out = (ast_expression*)ast_breakcont_new(ctx, is_continue, levels);
2721 /* returns true when it was a variable qualifier, false otherwise!
2722 * on error, cvq is set to CV_WRONG
2724 static bool parse_qualifiers(parser_t *parser, bool with_local, int *cvq, bool *noref, bool *is_static, uint32_t *_flags, char **message)
2726 bool had_const = false;
2727 bool had_var = false;
2728 bool had_noref = false;
2729 bool had_attrib = false;
2730 bool had_static = false;
2735 if (parser->tok == TOKEN_ATTRIBUTE_OPEN) {
2737 /* parse an attribute */
2738 if (!parser_next(parser)) {
2739 parseerror(parser, "expected attribute after `[[`");
2743 if (!strcmp(parser_tokval(parser), "noreturn")) {
2744 flags |= AST_FLAG_NORETURN;
2745 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2746 parseerror(parser, "`noreturn` attribute has no parameters, expected `]]`");
2751 else if (!strcmp(parser_tokval(parser), "noref")) {
2753 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2754 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2759 else if (!strcmp(parser_tokval(parser), "inline")) {
2760 flags |= AST_FLAG_INLINE;
2761 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2762 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2767 else if (!strcmp(parser_tokval(parser), "alias") && !(flags & AST_FLAG_ALIAS)) {
2768 flags |= AST_FLAG_ALIAS;
2771 if (!parser_next(parser)) {
2772 parseerror(parser, "parse error in attribute");
2776 if (parser->tok == '(') {
2777 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
2778 parseerror(parser, "`alias` attribute missing parameter");
2782 *message = util_strdup(parser_tokval(parser));
2784 if (!parser_next(parser)) {
2785 parseerror(parser, "parse error in attribute");
2789 if (parser->tok != ')') {
2790 parseerror(parser, "`alias` attribute expected `)` after parameter");
2794 if (!parser_next(parser)) {
2795 parseerror(parser, "parse error in attribute");
2800 if (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2801 parseerror(parser, "`alias` attribute expected `]]`");
2805 else if (!strcmp(parser_tokval(parser), "deprecated") && !(flags & AST_FLAG_DEPRECATED)) {
2806 flags |= AST_FLAG_DEPRECATED;
2809 if (!parser_next(parser)) {
2810 parseerror(parser, "parse error in attribute");
2814 if (parser->tok == '(') {
2815 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
2816 parseerror(parser, "`deprecated` attribute missing parameter");
2820 *message = util_strdup(parser_tokval(parser));
2822 if (!parser_next(parser)) {
2823 parseerror(parser, "parse error in attribute");
2827 if(parser->tok != ')') {
2828 parseerror(parser, "`deprecated` attribute expected `)` after parameter");
2832 if (!parser_next(parser)) {
2833 parseerror(parser, "parse error in attribute");
2838 if (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2839 parseerror(parser, "`deprecated` attribute expected `]]`");
2842 if (*message) mem_d(*message);
2850 /* Skip tokens until we hit a ]] */
2851 (void)!parsewarning(parser, WARN_UNKNOWN_ATTRIBUTE, "unknown attribute starting with `%s`", parser_tokval(parser));
2852 while (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2853 if (!parser_next(parser)) {
2854 parseerror(parser, "error inside attribute");
2861 else if (with_local && !strcmp(parser_tokval(parser), "static"))
2863 else if (!strcmp(parser_tokval(parser), "const"))
2865 else if (!strcmp(parser_tokval(parser), "var"))
2867 else if (with_local && !strcmp(parser_tokval(parser), "local"))
2869 else if (!strcmp(parser_tokval(parser), "noref"))
2871 else if (!had_const && !had_var && !had_noref && !had_attrib && !had_static && !flags) {
2876 if (!parser_next(parser))
2886 *is_static = had_static;
2890 parseerror(parser, "parse error after variable qualifier");
2895 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out);
2896 static bool parse_switch(parser_t *parser, ast_block *block, ast_expression **out)
2901 /* skip the 'while' and get the body */
2902 if (!parser_next(parser)) {
2903 if (OPTS_FLAG(LOOP_LABELS))
2904 parseerror(parser, "expected loop label or 'switch' operand in parenthesis");
2906 parseerror(parser, "expected 'switch' operand in parenthesis");
2910 if (parser->tok == ':') {
2911 if (!OPTS_FLAG(LOOP_LABELS))
2912 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2913 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2914 parseerror(parser, "expected loop label");
2917 label = util_strdup(parser_tokval(parser));
2918 if (!parser_next(parser)) {
2920 parseerror(parser, "expected 'switch' operand in parenthesis");
2925 if (parser->tok != '(') {
2926 parseerror(parser, "expected 'switch' operand in parenthesis");
2930 vec_push(parser->breaks, label);
2932 rv = parse_switch_go(parser, block, out);
2935 if (vec_last(parser->breaks) != label) {
2936 parseerror(parser, "internal error: label stack corrupted");
2942 vec_pop(parser->breaks);
2947 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out)
2949 ast_expression *operand;
2952 ast_switch *switchnode;
2953 ast_switch_case swcase;
2956 bool noref, is_static;
2957 uint32_t qflags = 0;
2959 lex_ctx_t ctx = parser_ctx(parser);
2961 (void)block; /* not touching */
2964 /* parse into the expression */
2965 if (!parser_next(parser)) {
2966 parseerror(parser, "expected switch operand");
2969 /* parse the operand */
2970 operand = parse_expression_leave(parser, false, false, false);
2974 switchnode = ast_switch_new(ctx, operand);
2977 if (parser->tok != ')') {
2978 ast_delete(switchnode);
2979 parseerror(parser, "expected closing paren after 'switch' operand");
2983 /* parse over the opening paren */
2984 if (!parser_next(parser) || parser->tok != '{') {
2985 ast_delete(switchnode);
2986 parseerror(parser, "expected list of cases");
2990 if (!parser_next(parser)) {
2991 ast_delete(switchnode);
2992 parseerror(parser, "expected 'case' or 'default'");
2996 /* new block; allow some variables to be declared here */
2997 parser_enterblock(parser);
3000 if (parser->tok == TOKEN_IDENT)
3001 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
3002 if (typevar || parser->tok == TOKEN_TYPENAME) {
3003 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL)) {
3004 ast_delete(switchnode);
3009 if (parse_qualifiers(parser, true, &cvq, &noref, &is_static, &qflags, NULL))
3011 if (cvq == CV_WRONG) {
3012 ast_delete(switchnode);
3015 if (!parse_variable(parser, block, false, cvq, NULL, noref, is_static, qflags, NULL)) {
3016 ast_delete(switchnode);
3025 while (parser->tok != '}') {
3026 ast_block *caseblock;
3028 if (!strcmp(parser_tokval(parser), "case")) {
3029 if (!parser_next(parser)) {
3030 ast_delete(switchnode);
3031 parseerror(parser, "expected expression for case");
3034 swcase.value = parse_expression_leave(parser, false, false, false);
3035 if (!swcase.value) {
3036 ast_delete(switchnode);
3037 parseerror(parser, "expected expression for case");
3040 if (!OPTS_FLAG(RELAXED_SWITCH)) {
3041 if (!ast_istype(swcase.value, ast_value)) { /* || ((ast_value*)swcase.value)->cvq != CV_CONST) { */
3042 parseerror(parser, "case on non-constant values need to be explicitly enabled via -frelaxed-switch");
3048 else if (!strcmp(parser_tokval(parser), "default")) {
3049 swcase.value = NULL;
3050 if (!parser_next(parser)) {
3051 ast_delete(switchnode);
3052 parseerror(parser, "expected colon");
3057 ast_delete(switchnode);
3058 parseerror(parser, "expected 'case' or 'default'");
3062 /* Now the colon and body */
3063 if (parser->tok != ':') {
3064 if (swcase.value) ast_unref(swcase.value);
3065 ast_delete(switchnode);
3066 parseerror(parser, "expected colon");
3070 if (!parser_next(parser)) {
3071 if (swcase.value) ast_unref(swcase.value);
3072 ast_delete(switchnode);
3073 parseerror(parser, "expected statements or case");
3076 caseblock = ast_block_new(parser_ctx(parser));
3078 if (swcase.value) ast_unref(swcase.value);
3079 ast_delete(switchnode);
3082 swcase.code = (ast_expression*)caseblock;
3083 vec_push(switchnode->cases, swcase);
3085 ast_expression *expr;
3086 if (parser->tok == '}')
3088 if (parser->tok == TOKEN_KEYWORD) {
3089 if (!strcmp(parser_tokval(parser), "case") ||
3090 !strcmp(parser_tokval(parser), "default"))
3095 if (!parse_statement(parser, caseblock, &expr, true)) {
3096 ast_delete(switchnode);
3101 if (!ast_block_add_expr(caseblock, expr)) {
3102 ast_delete(switchnode);
3108 parser_leaveblock(parser);
3111 if (parser->tok != '}') {
3112 ast_delete(switchnode);
3113 parseerror(parser, "expected closing paren of case list");
3116 if (!parser_next(parser)) {
3117 ast_delete(switchnode);
3118 parseerror(parser, "parse error after switch");
3121 *out = (ast_expression*)switchnode;
3125 /* parse computed goto sides */
3126 static ast_expression *parse_goto_computed(parser_t *parser, ast_expression **side) {
3127 ast_expression *on_true;
3128 ast_expression *on_false;
3129 ast_expression *cond;
3134 if (ast_istype(*side, ast_ternary)) {
3135 ast_ternary *tern = (ast_ternary*)*side;
3136 on_true = parse_goto_computed(parser, &tern->on_true);
3137 on_false = parse_goto_computed(parser, &tern->on_false);
3139 if (!on_true || !on_false) {
3140 parseerror(parser, "expected label or expression in ternary");
3141 if (on_true) ast_unref(on_true);
3142 if (on_false) ast_unref(on_false);
3150 return (ast_expression*)ast_ifthen_new(parser_ctx(parser), cond, on_true, on_false);
3151 } else if (ast_istype(*side, ast_label)) {
3152 ast_goto *gt = ast_goto_new(parser_ctx(parser), ((ast_label*)*side)->name);
3153 ast_goto_set_label(gt, ((ast_label*)*side));
3155 return (ast_expression*)gt;
3160 static bool parse_goto(parser_t *parser, ast_expression **out)
3162 ast_goto *gt = NULL;
3163 ast_expression *lbl;
3165 if (!parser_next(parser))
3168 if (parser->tok != TOKEN_IDENT) {
3169 ast_expression *expression;
3171 /* could be an expression i.e computed goto :-) */
3172 if (parser->tok != '(') {
3173 parseerror(parser, "expected label name after `goto`");
3177 /* failed to parse expression for goto */
3178 if (!(expression = parse_expression(parser, false, true)) ||
3179 !(*out = parse_goto_computed(parser, &expression))) {
3180 parseerror(parser, "invalid goto expression");
3182 ast_unref(expression);
3189 /* not computed goto */
3190 gt = ast_goto_new(parser_ctx(parser), parser_tokval(parser));
3191 lbl = parser_find_label(parser, gt->name);
3193 if (!ast_istype(lbl, ast_label)) {
3194 parseerror(parser, "internal error: label is not an ast_label");
3198 ast_goto_set_label(gt, (ast_label*)lbl);
3201 vec_push(parser->gotos, gt);
3203 if (!parser_next(parser) || parser->tok != ';') {
3204 parseerror(parser, "semicolon expected after goto label");
3207 if (!parser_next(parser)) {
3208 parseerror(parser, "parse error after goto");
3212 *out = (ast_expression*)gt;
3216 static bool parse_skipwhite(parser_t *parser)
3219 if (!parser_next(parser))
3221 } while (parser->tok == TOKEN_WHITE && parser->tok < TOKEN_ERROR);
3222 return parser->tok < TOKEN_ERROR;
3225 static bool parse_eol(parser_t *parser)
3227 if (!parse_skipwhite(parser))
3229 return parser->tok == TOKEN_EOL;
3232 static bool parse_pragma_do(parser_t *parser)
3234 if (!parser_next(parser) ||
3235 parser->tok != TOKEN_IDENT ||
3236 strcmp(parser_tokval(parser), "pragma"))
3238 parseerror(parser, "expected `pragma` keyword after `#`, got `%s`", parser_tokval(parser));
3241 if (!parse_skipwhite(parser) || parser->tok != TOKEN_IDENT) {
3242 parseerror(parser, "expected pragma, got `%s`", parser_tokval(parser));
3246 if (!strcmp(parser_tokval(parser), "noref")) {
3247 if (!parse_skipwhite(parser) || parser->tok != TOKEN_INTCONST) {
3248 parseerror(parser, "`noref` pragma requires an argument: 0 or 1");
3251 parser->noref = !!parser_token(parser)->constval.i;
3252 if (!parse_eol(parser)) {
3253 parseerror(parser, "parse error after `noref` pragma");
3259 (void)!parsewarning(parser, WARN_UNKNOWN_PRAGMAS, "ignoring #pragma %s", parser_tokval(parser));
3266 static bool parse_pragma(parser_t *parser)
3269 parser->lex->flags.preprocessing = true;
3270 parser->lex->flags.mergelines = true;
3271 rv = parse_pragma_do(parser);
3272 if (parser->tok != TOKEN_EOL) {
3273 parseerror(parser, "junk after pragma");
3276 parser->lex->flags.preprocessing = false;
3277 parser->lex->flags.mergelines = false;
3278 if (!parser_next(parser)) {
3279 parseerror(parser, "parse error after pragma");
3285 static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases)
3287 bool noref, is_static;
3289 uint32_t qflags = 0;
3290 ast_value *typevar = NULL;
3291 char *vstring = NULL;
3295 if (parser->tok == TOKEN_IDENT)
3296 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
3298 if (typevar || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
3300 /* local variable */
3302 parseerror(parser, "cannot declare a variable from here");
3305 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
3306 if (parsewarning(parser, WARN_EXTENSIONS, "missing 'local' keyword when declaring a local variable"))
3309 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL))
3313 else if (parse_qualifiers(parser, !!block, &cvq, &noref, &is_static, &qflags, &vstring))
3315 if (cvq == CV_WRONG)
3317 return parse_variable(parser, block, true, cvq, NULL, noref, is_static, qflags, vstring);
3319 else if (parser->tok == TOKEN_KEYWORD)
3321 if (!strcmp(parser_tokval(parser), "__builtin_debug_printtype"))
3326 if (!parser_next(parser)) {
3327 parseerror(parser, "parse error after __builtin_debug_printtype");
3331 if (parser->tok == TOKEN_IDENT && (tdef = parser_find_typedef(parser, parser_tokval(parser), 0)))
3333 ast_type_to_string((ast_expression*)tdef, ty, sizeof(ty));
3334 con_out("__builtin_debug_printtype: `%s`=`%s`\n", tdef->name, ty);
3335 if (!parser_next(parser)) {
3336 parseerror(parser, "parse error after __builtin_debug_printtype typename argument");
3342 if (!parse_statement(parser, block, out, allow_cases))
3345 con_out("__builtin_debug_printtype: got no output node\n");
3348 ast_type_to_string(*out, ty, sizeof(ty));
3349 con_out("__builtin_debug_printtype: `%s`\n", ty);
3354 else if (!strcmp(parser_tokval(parser), "return"))
3356 return parse_return(parser, block, out);
3358 else if (!strcmp(parser_tokval(parser), "if"))
3360 return parse_if(parser, block, out);
3362 else if (!strcmp(parser_tokval(parser), "while"))
3364 return parse_while(parser, block, out);
3366 else if (!strcmp(parser_tokval(parser), "do"))
3368 return parse_dowhile(parser, block, out);
3370 else if (!strcmp(parser_tokval(parser), "for"))
3372 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
3373 if (parsewarning(parser, WARN_EXTENSIONS, "for loops are not recognized in the original Quake C standard, to enable try an alternate standard --std=?"))
3376 return parse_for(parser, block, out);
3378 else if (!strcmp(parser_tokval(parser), "break"))
3380 return parse_break_continue(parser, block, out, false);
3382 else if (!strcmp(parser_tokval(parser), "continue"))
3384 return parse_break_continue(parser, block, out, true);
3386 else if (!strcmp(parser_tokval(parser), "switch"))
3388 return parse_switch(parser, block, out);
3390 else if (!strcmp(parser_tokval(parser), "case") ||
3391 !strcmp(parser_tokval(parser), "default"))
3394 parseerror(parser, "unexpected 'case' label");
3399 else if (!strcmp(parser_tokval(parser), "goto"))
3401 return parse_goto(parser, out);
3403 else if (!strcmp(parser_tokval(parser), "typedef"))
3405 if (!parser_next(parser)) {
3406 parseerror(parser, "expected type definition after 'typedef'");
3409 return parse_typedef(parser);
3411 parseerror(parser, "Unexpected keyword: `%s'", parser_tokval(parser));
3414 else if (parser->tok == '{')
3417 inner = parse_block(parser);
3420 *out = (ast_expression*)inner;
3423 else if (parser->tok == ':')
3427 if (!parser_next(parser)) {
3428 parseerror(parser, "expected label name");
3431 if (parser->tok != TOKEN_IDENT) {
3432 parseerror(parser, "label must be an identifier");
3435 label = (ast_label*)parser_find_label(parser, parser_tokval(parser));
3437 if (!label->undefined) {
3438 parseerror(parser, "label `%s` already defined", label->name);
3441 label->undefined = false;
3444 label = ast_label_new(parser_ctx(parser), parser_tokval(parser), false);
3445 vec_push(parser->labels, label);
3447 *out = (ast_expression*)label;
3448 if (!parser_next(parser)) {
3449 parseerror(parser, "parse error after label");
3452 for (i = 0; i < vec_size(parser->gotos); ++i) {
3453 if (!strcmp(parser->gotos[i]->name, label->name)) {
3454 ast_goto_set_label(parser->gotos[i], label);
3455 vec_remove(parser->gotos, i, 1);
3461 else if (parser->tok == ';')
3463 if (!parser_next(parser)) {
3464 parseerror(parser, "parse error after empty statement");
3471 lex_ctx_t ctx = parser_ctx(parser);
3472 ast_expression *exp = parse_expression(parser, false, false);
3476 if (!ast_side_effects(exp)) {
3477 if (compile_warning(ctx, WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
3484 static bool parse_enum(parser_t *parser)
3487 bool reverse = false;
3489 ast_value **values = NULL;
3490 ast_value *var = NULL;
3493 ast_expression *old;
3495 if (!parser_next(parser) || (parser->tok != '{' && parser->tok != ':')) {
3496 parseerror(parser, "expected `{` or `:` after `enum` keyword");
3500 /* enumeration attributes (can add more later) */
3501 if (parser->tok == ':') {
3502 if (!parser_next(parser) || parser->tok != TOKEN_IDENT){
3503 parseerror(parser, "expected `flag` or `reverse` for enumeration attribute");
3508 if (!strcmp(parser_tokval(parser), "flag")) {
3512 else if (!strcmp(parser_tokval(parser), "reverse")) {
3516 parseerror(parser, "invalid attribute `%s` for enumeration", parser_tokval(parser));
3520 if (!parser_next(parser) || parser->tok != '{') {
3521 parseerror(parser, "expected `{` after enum attribute ");
3527 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
3528 if (parser->tok == '}') {
3529 /* allow an empty enum */
3532 parseerror(parser, "expected identifier or `}`");
3536 old = parser_find_field(parser, parser_tokval(parser));
3538 old = parser_find_global(parser, parser_tokval(parser));
3540 parseerror(parser, "value `%s` has already been declared here: %s:%i",
3541 parser_tokval(parser), ast_ctx(old).file, ast_ctx(old).line);
3545 var = ast_value_new(parser_ctx(parser), parser_tokval(parser), TYPE_FLOAT);
3546 vec_push(values, var);
3547 var->cvq = CV_CONST;
3548 var->hasvalue = true;
3550 /* for flagged enumerations increment in POTs of TWO */
3551 var->constval.vfloat = (flag) ? (num *= 2) : (num ++);
3552 parser_addglobal(parser, var->name, (ast_expression*)var);
3554 if (!parser_next(parser)) {
3555 parseerror(parser, "expected `=`, `}` or comma after identifier");
3559 if (parser->tok == ',')
3561 if (parser->tok == '}')
3563 if (parser->tok != '=') {
3564 parseerror(parser, "expected `=`, `}` or comma after identifier");
3568 if (!parser_next(parser)) {
3569 parseerror(parser, "expected expression after `=`");
3573 /* We got a value! */
3574 old = parse_expression_leave(parser, true, false, false);
3575 asvalue = (ast_value*)old;
3576 if (!ast_istype(old, ast_value) || asvalue->cvq != CV_CONST || !asvalue->hasvalue) {
3577 compile_error(ast_ctx(var), "constant value or expression expected");
3580 num = (var->constval.vfloat = asvalue->constval.vfloat) + 1;
3582 if (parser->tok == '}')
3584 if (parser->tok != ',') {
3585 parseerror(parser, "expected `}` or comma after expression");
3590 /* patch them all (for reversed attribute) */
3593 for (i = 0; i < vec_size(values); i++)
3594 values[i]->constval.vfloat = vec_size(values) - i - 1;
3597 if (parser->tok != '}') {
3598 parseerror(parser, "internal error: breaking without `}`");
3602 if (!parser_next(parser) || parser->tok != ';') {
3603 parseerror(parser, "expected semicolon after enumeration");
3607 if (!parser_next(parser)) {
3608 parseerror(parser, "parse error after enumeration");
3620 static bool parse_block_into(parser_t *parser, ast_block *block)
3624 parser_enterblock(parser);
3626 if (!parser_next(parser)) { /* skip the '{' */
3627 parseerror(parser, "expected function body");
3631 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
3633 ast_expression *expr = NULL;
3634 if (parser->tok == '}')
3637 if (!parse_statement(parser, block, &expr, false)) {
3638 /* parseerror(parser, "parse error"); */
3644 if (!ast_block_add_expr(block, expr)) {
3651 if (parser->tok != '}') {
3654 (void)parser_next(parser);
3658 if (!parser_leaveblock(parser))
3660 return retval && !!block;
3663 static ast_block* parse_block(parser_t *parser)
3666 block = ast_block_new(parser_ctx(parser));
3669 if (!parse_block_into(parser, block)) {
3670 ast_block_delete(block);
3676 static bool parse_statement_or_block(parser_t *parser, ast_expression **out)
3678 if (parser->tok == '{') {
3679 *out = (ast_expression*)parse_block(parser);
3682 return parse_statement(parser, NULL, out, false);
3685 static bool create_vector_members(ast_value *var, ast_member **me)
3688 size_t len = strlen(var->name);
3690 for (i = 0; i < 3; ++i) {
3691 char *name = (char*)mem_a(len+3);
3692 memcpy(name, var->name, len);
3694 name[len+1] = 'x'+i;
3696 me[i] = ast_member_new(ast_ctx(var), (ast_expression*)var, i, name);
3705 do { ast_member_delete(me[--i]); } while(i);
3709 static bool parse_function_body(parser_t *parser, ast_value *var)
3711 ast_block *block = NULL;
3716 ast_expression *framenum = NULL;
3717 ast_expression *nextthink = NULL;
3718 /* None of the following have to be deleted */
3719 ast_expression *fld_think = NULL, *fld_nextthink = NULL, *fld_frame = NULL;
3720 ast_expression *gbl_time = NULL, *gbl_self = NULL;
3721 bool has_frame_think;
3725 has_frame_think = false;
3726 old = parser->function;
3728 if (var->expression.flags & AST_FLAG_ALIAS) {
3729 parseerror(parser, "function aliases cannot have bodies");
3733 if (vec_size(parser->gotos) || vec_size(parser->labels)) {
3734 parseerror(parser, "gotos/labels leaking");
3738 if (!OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC) {
3739 if (parsewarning(parser, WARN_VARIADIC_FUNCTION,
3740 "variadic function with implementation will not be able to access additional parameters (try -fvariadic-args)"))
3746 if (parser->tok == '[') {
3747 /* got a frame definition: [ framenum, nextthink ]
3748 * this translates to:
3749 * self.frame = framenum;
3750 * self.nextthink = time + 0.1;
3751 * self.think = nextthink;
3755 fld_think = parser_find_field(parser, "think");
3756 fld_nextthink = parser_find_field(parser, "nextthink");
3757 fld_frame = parser_find_field(parser, "frame");
3758 if (!fld_think || !fld_nextthink || !fld_frame) {
3759 parseerror(parser, "cannot use [frame,think] notation without the required fields");
3760 parseerror(parser, "please declare the following entityfields: `frame`, `think`, `nextthink`");
3763 gbl_time = parser_find_global(parser, "time");
3764 gbl_self = parser_find_global(parser, "self");
3765 if (!gbl_time || !gbl_self) {
3766 parseerror(parser, "cannot use [frame,think] notation without the required globals");
3767 parseerror(parser, "please declare the following globals: `time`, `self`");
3771 if (!parser_next(parser))
3774 framenum = parse_expression_leave(parser, true, false, false);
3776 parseerror(parser, "expected a framenumber constant in[frame,think] notation");
3779 if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->hasvalue) {
3780 ast_unref(framenum);
3781 parseerror(parser, "framenumber in [frame,think] notation must be a constant");
3785 if (parser->tok != ',') {
3786 ast_unref(framenum);
3787 parseerror(parser, "expected comma after frame number in [frame,think] notation");
3788 parseerror(parser, "Got a %i\n", parser->tok);
3792 if (!parser_next(parser)) {
3793 ast_unref(framenum);
3797 if (parser->tok == TOKEN_IDENT && !parser_find_var(parser, parser_tokval(parser)))
3799 /* qc allows the use of not-yet-declared functions here
3800 * - this automatically creates a prototype */
3801 ast_value *thinkfunc;
3802 ast_expression *functype = fld_think->next;
3804 thinkfunc = ast_value_new(parser_ctx(parser), parser_tokval(parser), functype->vtype);
3805 if (!thinkfunc) { /* || !ast_type_adopt(thinkfunc, functype)*/
3806 ast_unref(framenum);
3807 parseerror(parser, "failed to create implicit prototype for `%s`", parser_tokval(parser));
3810 ast_type_adopt(thinkfunc, functype);
3812 if (!parser_next(parser)) {
3813 ast_unref(framenum);
3814 ast_delete(thinkfunc);
3818 parser_addglobal(parser, thinkfunc->name, (ast_expression*)thinkfunc);
3820 nextthink = (ast_expression*)thinkfunc;
3823 nextthink = parse_expression_leave(parser, true, false, false);
3825 ast_unref(framenum);
3826 parseerror(parser, "expected a think-function in [frame,think] notation");
3831 if (!ast_istype(nextthink, ast_value)) {
3832 parseerror(parser, "think-function in [frame,think] notation must be a constant");
3836 if (retval && parser->tok != ']') {
3837 parseerror(parser, "expected closing `]` for [frame,think] notation");
3841 if (retval && !parser_next(parser)) {
3845 if (retval && parser->tok != '{') {
3846 parseerror(parser, "a function body has to be declared after a [frame,think] declaration");
3851 ast_unref(nextthink);
3852 ast_unref(framenum);
3856 has_frame_think = true;
3859 block = ast_block_new(parser_ctx(parser));
3861 parseerror(parser, "failed to allocate block");
3862 if (has_frame_think) {
3863 ast_unref(nextthink);
3864 ast_unref(framenum);
3869 if (has_frame_think) {
3871 ast_expression *self_frame;
3872 ast_expression *self_nextthink;
3873 ast_expression *self_think;
3874 ast_expression *time_plus_1;
3875 ast_store *store_frame;
3876 ast_store *store_nextthink;
3877 ast_store *store_think;
3879 ctx = parser_ctx(parser);
3880 self_frame = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_frame);
3881 self_nextthink = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_nextthink);
3882 self_think = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_think);
3884 time_plus_1 = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F,
3885 gbl_time, (ast_expression*)fold_constgen_float(parser->fold, 0.1));
3887 if (!self_frame || !self_nextthink || !self_think || !time_plus_1) {
3888 if (self_frame) ast_delete(self_frame);
3889 if (self_nextthink) ast_delete(self_nextthink);
3890 if (self_think) ast_delete(self_think);
3891 if (time_plus_1) ast_delete(time_plus_1);
3897 store_frame = ast_store_new(ctx, INSTR_STOREP_F, self_frame, framenum);
3898 store_nextthink = ast_store_new(ctx, INSTR_STOREP_F, self_nextthink, time_plus_1);
3899 store_think = ast_store_new(ctx, INSTR_STOREP_FNC, self_think, nextthink);
3902 ast_delete(self_frame);
3905 if (!store_nextthink) {
3906 ast_delete(self_nextthink);
3910 ast_delete(self_think);
3914 if (store_frame) ast_delete(store_frame);
3915 if (store_nextthink) ast_delete(store_nextthink);
3916 if (store_think) ast_delete(store_think);
3919 if (!ast_block_add_expr(block, (ast_expression*)store_frame) ||
3920 !ast_block_add_expr(block, (ast_expression*)store_nextthink) ||
3921 !ast_block_add_expr(block, (ast_expression*)store_think))
3928 parseerror(parser, "failed to generate code for [frame,think]");
3929 ast_unref(nextthink);
3930 ast_unref(framenum);
3936 if (var->hasvalue) {
3937 parseerror(parser, "function `%s` declared with multiple bodies", var->name);
3938 ast_block_delete(block);
3942 func = ast_function_new(ast_ctx(var), var->name, var);
3944 parseerror(parser, "failed to allocate function for `%s`", var->name);
3945 ast_block_delete(block);
3948 vec_push(parser->functions, func);
3950 parser_enterblock(parser);
3952 for (parami = 0; parami < vec_size(var->expression.params); ++parami) {
3954 ast_value *param = var->expression.params[parami];
3957 if (param->expression.vtype != TYPE_VECTOR &&
3958 (param->expression.vtype != TYPE_FIELD ||
3959 param->expression.next->vtype != TYPE_VECTOR))
3964 if (!create_vector_members(param, me)) {
3965 ast_block_delete(block);
3969 for (e = 0; e < 3; ++e) {
3970 parser_addlocal(parser, me[e]->name, (ast_expression*)me[e]);
3971 ast_block_collect(block, (ast_expression*)me[e]);
3975 if (var->argcounter) {
3976 ast_value *argc = ast_value_new(ast_ctx(var), var->argcounter, TYPE_FLOAT);
3977 parser_addlocal(parser, argc->name, (ast_expression*)argc);
3981 if (OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC) {
3983 ast_value *varargs = ast_value_new(ast_ctx(var), "reserved:va_args", TYPE_ARRAY);
3984 varargs->expression.flags |= AST_FLAG_IS_VARARG;
3985 varargs->expression.next = (ast_expression*)ast_value_new(ast_ctx(var), NULL, TYPE_VECTOR);
3986 varargs->expression.count = 0;
3987 util_snprintf(name, sizeof(name), "%s##va##SET", var->name);
3988 if (!parser_create_array_setter_proto(parser, varargs, name)) {
3989 ast_delete(varargs);
3990 ast_block_delete(block);
3993 util_snprintf(name, sizeof(name), "%s##va##GET", var->name);
3994 if (!parser_create_array_getter_proto(parser, varargs, varargs->expression.next, name)) {
3995 ast_delete(varargs);
3996 ast_block_delete(block);
3999 func->varargs = varargs;
4000 func->fixedparams = (ast_value*)fold_constgen_float(parser->fold, vec_size(var->expression.params));
4003 parser->function = func;
4004 if (!parse_block_into(parser, block)) {
4005 ast_block_delete(block);
4009 vec_push(func->blocks, block);
4012 parser->function = old;
4013 if (!parser_leaveblock(parser))
4015 if (vec_size(parser->variables) != PARSER_HT_LOCALS) {
4016 parseerror(parser, "internal error: local scopes left");
4020 if (parser->tok == ';')
4021 return parser_next(parser);
4022 else if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
4023 parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)");
4027 (void)!parser_leaveblock(parser);
4028 vec_pop(parser->functions);
4029 ast_function_delete(func);
4030 var->constval.vfunc = NULL;
4033 parser->function = old;
4037 static ast_expression *array_accessor_split(
4042 ast_expression *left,
4043 ast_expression *right
4049 lex_ctx_t ctx = ast_ctx(array);
4051 if (!left || !right) {
4052 if (left) ast_delete(left);
4053 if (right) ast_delete(right);
4057 cmp = ast_binary_new(ctx, INSTR_LT,
4058 (ast_expression*)index,
4059 (ast_expression*)fold_constgen_float(parser->fold, middle));
4063 parseerror(parser, "internal error: failed to create comparison for array setter");
4067 ifthen = ast_ifthen_new(ctx, (ast_expression*)cmp, left, right);
4069 ast_delete(cmp); /* will delete left and right */
4070 parseerror(parser, "internal error: failed to create conditional jump for array setter");
4074 return (ast_expression*)ifthen;
4077 static ast_expression *array_setter_node(parser_t *parser, ast_value *array, ast_value *index, ast_value *value, size_t from, size_t afterend)
4079 lex_ctx_t ctx = ast_ctx(array);
4081 if (from+1 == afterend) {
4082 /* set this value */
4085 ast_array_index *subscript;
4087 int assignop = type_store_instr[value->expression.vtype];
4089 if (value->expression.vtype == TYPE_FIELD && value->expression.next->vtype == TYPE_VECTOR)
4090 assignop = INSTR_STORE_V;
4092 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)fold_constgen_float(parser->fold, from));
4096 st = ast_store_new(ctx, assignop, (ast_expression*)subscript, (ast_expression*)value);
4098 ast_delete(subscript);
4102 block = ast_block_new(ctx);
4108 if (!ast_block_add_expr(block, (ast_expression*)st)) {
4113 ret = ast_return_new(ctx, NULL);
4119 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
4124 return (ast_expression*)block;
4126 ast_expression *left, *right;
4127 size_t diff = afterend - from;
4128 size_t middle = from + diff/2;
4129 left = array_setter_node(parser, array, index, value, from, middle);
4130 right = array_setter_node(parser, array, index, value, middle, afterend);
4131 return array_accessor_split(parser, array, index, middle, left, right);
4135 static ast_expression *array_field_setter_node(
4144 lex_ctx_t ctx = ast_ctx(array);
4146 if (from+1 == afterend) {
4147 /* set this value */
4150 ast_entfield *entfield;
4151 ast_array_index *subscript;
4153 int assignop = type_storep_instr[value->expression.vtype];
4155 if (value->expression.vtype == TYPE_FIELD && value->expression.next->vtype == TYPE_VECTOR)
4156 assignop = INSTR_STOREP_V;
4158 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)fold_constgen_float(parser->fold, from));
4162 subscript->expression.next = ast_type_copy(ast_ctx(subscript), (ast_expression*)subscript);
4163 subscript->expression.vtype = TYPE_FIELD;
4165 entfield = ast_entfield_new_force(ctx,
4166 (ast_expression*)entity,
4167 (ast_expression*)subscript,
4168 (ast_expression*)subscript);
4170 ast_delete(subscript);
4174 st = ast_store_new(ctx, assignop, (ast_expression*)entfield, (ast_expression*)value);
4176 ast_delete(entfield);
4180 block = ast_block_new(ctx);
4186 if (!ast_block_add_expr(block, (ast_expression*)st)) {
4191 ret = ast_return_new(ctx, NULL);
4197 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
4202 return (ast_expression*)block;
4204 ast_expression *left, *right;
4205 size_t diff = afterend - from;
4206 size_t middle = from + diff/2;
4207 left = array_field_setter_node(parser, array, entity, index, value, from, middle);
4208 right = array_field_setter_node(parser, array, entity, index, value, middle, afterend);
4209 return array_accessor_split(parser, array, index, middle, left, right);
4213 static ast_expression *array_getter_node(parser_t *parser, ast_value *array, ast_value *index, size_t from, size_t afterend)
4215 lex_ctx_t ctx = ast_ctx(array);
4217 if (from+1 == afterend) {
4219 ast_array_index *subscript;
4221 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)fold_constgen_float(parser->fold, from));
4225 ret = ast_return_new(ctx, (ast_expression*)subscript);
4227 ast_delete(subscript);
4231 return (ast_expression*)ret;
4233 ast_expression *left, *right;
4234 size_t diff = afterend - from;
4235 size_t middle = from + diff/2;
4236 left = array_getter_node(parser, array, index, from, middle);
4237 right = array_getter_node(parser, array, index, middle, afterend);
4238 return array_accessor_split(parser, array, index, middle, left, right);
4242 static bool parser_create_array_accessor(parser_t *parser, ast_value *array, const char *funcname, ast_value **out)
4244 ast_function *func = NULL;
4245 ast_value *fval = NULL;
4246 ast_block *body = NULL;
4248 fval = ast_value_new(ast_ctx(array), funcname, TYPE_FUNCTION);
4250 parseerror(parser, "failed to create accessor function value");
4254 func = ast_function_new(ast_ctx(array), funcname, fval);
4257 parseerror(parser, "failed to create accessor function node");
4261 body = ast_block_new(ast_ctx(array));
4263 parseerror(parser, "failed to create block for array accessor");
4269 vec_push(func->blocks, body);
4272 vec_push(parser->accessors, fval);
4277 static ast_value* parser_create_array_setter_proto(parser_t *parser, ast_value *array, const char *funcname)
4279 ast_value *index = NULL;
4280 ast_value *value = NULL;
4284 if (!ast_istype(array->expression.next, ast_value)) {
4285 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4289 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4291 func = fval->constval.vfunc;
4292 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
4294 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4295 value = ast_value_copy((ast_value*)array->expression.next);
4297 if (!index || !value) {
4298 parseerror(parser, "failed to create locals for array accessor");
4301 (void)!ast_value_set_name(value, "value"); /* not important */
4302 vec_push(fval->expression.params, index);
4303 vec_push(fval->expression.params, value);
4305 array->setter = fval;
4308 if (index) ast_delete(index);
4309 if (value) ast_delete(value);
4315 static bool parser_create_array_setter_impl(parser_t *parser, ast_value *array)
4317 ast_expression *root = NULL;
4318 root = array_setter_node(parser, array,
4319 array->setter->expression.params[0],
4320 array->setter->expression.params[1],
4321 0, array->expression.count);
4323 parseerror(parser, "failed to build accessor search tree");
4326 if (!ast_block_add_expr(array->setter->constval.vfunc->blocks[0], root)) {
4333 static bool parser_create_array_setter(parser_t *parser, ast_value *array, const char *funcname)
4335 if (!parser_create_array_setter_proto(parser, array, funcname))
4337 return parser_create_array_setter_impl(parser, array);
4340 static bool parser_create_array_field_setter(parser_t *parser, ast_value *array, const char *funcname)
4342 ast_expression *root = NULL;
4343 ast_value *entity = NULL;
4344 ast_value *index = NULL;
4345 ast_value *value = NULL;
4349 if (!ast_istype(array->expression.next, ast_value)) {
4350 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4354 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4356 func = fval->constval.vfunc;
4357 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
4359 entity = ast_value_new(ast_ctx(array), "entity", TYPE_ENTITY);
4360 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4361 value = ast_value_copy((ast_value*)array->expression.next);
4362 if (!entity || !index || !value) {
4363 parseerror(parser, "failed to create locals for array accessor");
4366 (void)!ast_value_set_name(value, "value"); /* not important */
4367 vec_push(fval->expression.params, entity);
4368 vec_push(fval->expression.params, index);
4369 vec_push(fval->expression.params, value);
4371 root = array_field_setter_node(parser, array, entity, index, value, 0, array->expression.count);
4373 parseerror(parser, "failed to build accessor search tree");
4377 array->setter = fval;
4378 return ast_block_add_expr(func->blocks[0], root);
4380 if (entity) ast_delete(entity);
4381 if (index) ast_delete(index);
4382 if (value) ast_delete(value);
4383 if (root) ast_delete(root);
4389 static ast_value* parser_create_array_getter_proto(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
4391 ast_value *index = NULL;
4395 /* NOTE: checking array->expression.next rather than elemtype since
4396 * for fields elemtype is a temporary fieldtype.
4398 if (!ast_istype(array->expression.next, ast_value)) {
4399 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4403 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4405 func = fval->constval.vfunc;
4406 fval->expression.next = ast_type_copy(ast_ctx(array), elemtype);
4408 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4411 parseerror(parser, "failed to create locals for array accessor");
4414 vec_push(fval->expression.params, index);
4416 array->getter = fval;
4419 if (index) ast_delete(index);
4425 static bool parser_create_array_getter_impl(parser_t *parser, ast_value *array)
4427 ast_expression *root = NULL;
4429 root = array_getter_node(parser, array, array->getter->expression.params[0], 0, array->expression.count);
4431 parseerror(parser, "failed to build accessor search tree");
4434 if (!ast_block_add_expr(array->getter->constval.vfunc->blocks[0], root)) {
4441 static bool parser_create_array_getter(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
4443 if (!parser_create_array_getter_proto(parser, array, elemtype, funcname))
4445 return parser_create_array_getter_impl(parser, array);
4448 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
4449 static ast_value *parse_parameter_list(parser_t *parser, ast_value *var)
4457 bool variadic = false;
4458 ast_value *varparam = NULL;
4459 char *argcounter = NULL;
4461 ctx = parser_ctx(parser);
4463 /* for the sake of less code we parse-in in this function */
4464 if (!parser_next(parser)) {
4466 parseerror(parser, "expected parameter list");
4472 /* parse variables until we hit a closing paren */
4473 while (parser->tok != ')') {
4475 /* there must be commas between them */
4476 if (parser->tok != ',') {
4477 parseerror(parser, "expected comma or end of parameter list");
4480 if (!parser_next(parser)) {
4481 parseerror(parser, "expected parameter");
4487 if (parser->tok == TOKEN_DOTS) {
4488 /* '...' indicates a varargs function */
4490 if (!parser_next(parser) || (parser->tok != ')' && parser->tok != TOKEN_IDENT)) {
4491 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4494 if (parser->tok == TOKEN_IDENT) {
4495 argcounter = util_strdup(parser_tokval(parser));
4496 if (!parser_next(parser) || parser->tok != ')') {
4497 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4504 /* for anything else just parse a typename */
4505 param = parse_typename(parser, NULL, NULL);
4508 vec_push(params, param);
4509 if (param->expression.vtype >= TYPE_VARIANT) {
4510 char tname[1024]; /* typename is reserved in C++ */
4511 ast_type_to_string((ast_expression*)param, tname, sizeof(tname));
4512 parseerror(parser, "type not supported as part of a parameter list: %s", tname);
4515 /* type-restricted varargs */
4516 if (parser->tok == TOKEN_DOTS) {
4518 varparam = vec_last(params);
4520 if (!parser_next(parser) || (parser->tok != ')' && parser->tok != TOKEN_IDENT)) {
4521 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4524 if (parser->tok == TOKEN_IDENT) {
4525 argcounter = util_strdup(parser_tokval(parser));
4526 if (!parser_next(parser) || parser->tok != ')') {
4527 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4535 if (vec_size(params) == 1 && params[0]->expression.vtype == TYPE_VOID)
4539 if (vec_size(params) > 8 && OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
4540 (void)!parsewarning(parser, WARN_EXTENSIONS, "more than 8 parameters are not supported by this standard");
4543 if (!parser_next(parser)) {
4544 parseerror(parser, "parse error after typename");
4548 /* now turn 'var' into a function type */
4549 fval = ast_value_new(ctx, "<type()>", TYPE_FUNCTION);
4550 fval->expression.next = (ast_expression*)var;
4552 fval->expression.flags |= AST_FLAG_VARIADIC;
4555 var->expression.params = params;
4556 var->expression.varparam = (ast_expression*)varparam;
4557 var->argcounter = argcounter;
4566 ast_delete(varparam);
4568 for (i = 0; i < vec_size(params); ++i)
4569 ast_delete(params[i]);
4574 static ast_value *parse_arraysize(parser_t *parser, ast_value *var)
4576 ast_expression *cexp;
4577 ast_value *cval, *tmp;
4580 ctx = parser_ctx(parser);
4582 if (!parser_next(parser)) {
4584 parseerror(parser, "expected array-size");
4588 if (parser->tok != ']') {
4589 cexp = parse_expression_leave(parser, true, false, false);
4591 if (!cexp || !ast_istype(cexp, ast_value)) {
4595 parseerror(parser, "expected array-size as constant positive integer");
4598 cval = (ast_value*)cexp;
4605 tmp = ast_value_new(ctx, "<type[]>", TYPE_ARRAY);
4606 tmp->expression.next = (ast_expression*)var;
4610 if (cval->expression.vtype == TYPE_INTEGER)
4611 tmp->expression.count = cval->constval.vint;
4612 else if (cval->expression.vtype == TYPE_FLOAT)
4613 tmp->expression.count = cval->constval.vfloat;
4617 parseerror(parser, "array-size must be a positive integer constant");
4623 var->expression.count = -1;
4624 var->expression.flags |= AST_FLAG_ARRAY_INIT;
4627 if (parser->tok != ']') {
4629 parseerror(parser, "expected ']' after array-size");
4632 if (!parser_next(parser)) {
4634 parseerror(parser, "error after parsing array size");
4640 /* Parse a complete typename.
4641 * for single-variables (ie. function parameters or typedefs) storebase should be NULL
4642 * but when parsing variables separated by comma
4643 * 'storebase' should point to where the base-type should be kept.
4644 * The base type makes up every bit of type information which comes *before* the
4647 * The following will be parsed in its entirety:
4649 * The 'basetype' in this case is 'void()'
4650 * and if there's a comma after it, say:
4652 * then the type-information 'void()' can be stored in 'storebase'
4654 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef)
4656 ast_value *var, *tmp;
4659 const char *name = NULL;
4660 bool isfield = false;
4661 bool wasarray = false;
4662 size_t morefields = 0;
4664 ctx = parser_ctx(parser);
4666 /* types may start with a dot */
4667 if (parser->tok == '.') {
4669 /* if we parsed a dot we need a typename now */
4670 if (!parser_next(parser)) {
4671 parseerror(parser, "expected typename for field definition");
4675 /* Further dots are handled seperately because they won't be part of the
4678 while (parser->tok == '.') {
4680 if (!parser_next(parser)) {
4681 parseerror(parser, "expected typename for field definition");
4686 if (parser->tok == TOKEN_IDENT)
4687 cached_typedef = parser_find_typedef(parser, parser_tokval(parser), 0);
4688 if (!cached_typedef && parser->tok != TOKEN_TYPENAME) {
4689 parseerror(parser, "expected typename");
4693 /* generate the basic type value */
4694 if (cached_typedef) {
4695 var = ast_value_copy(cached_typedef);
4696 ast_value_set_name(var, "<type(from_def)>");
4698 var = ast_value_new(ctx, "<type>", parser_token(parser)->constval.t);
4700 for (; morefields; --morefields) {
4701 tmp = ast_value_new(ctx, "<.type>", TYPE_FIELD);
4702 tmp->expression.next = (ast_expression*)var;
4706 /* do not yet turn into a field - remember:
4707 * .void() foo; is a field too
4708 * .void()() foo; is a function
4712 if (!parser_next(parser)) {
4714 parseerror(parser, "parse error after typename");
4718 /* an opening paren now starts the parameter-list of a function
4719 * this is where original-QC has parameter lists.
4720 * We allow a single parameter list here.
4721 * Much like fteqcc we don't allow `float()() x`
4723 if (parser->tok == '(') {
4724 var = parse_parameter_list(parser, var);
4729 /* store the base if requested */
4731 *storebase = ast_value_copy(var);
4733 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
4734 tmp->expression.next = (ast_expression*)*storebase;
4739 /* there may be a name now */
4740 if (parser->tok == TOKEN_IDENT) {
4741 name = util_strdup(parser_tokval(parser));
4743 if (!parser_next(parser)) {
4746 parseerror(parser, "error after variable or field declaration");
4751 /* now this may be an array */
4752 if (parser->tok == '[') {
4754 var = parse_arraysize(parser, var);
4756 if (name) mem_d(name);
4761 /* This is the point where we can turn it into a field */
4763 /* turn it into a field if desired */
4764 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
4765 tmp->expression.next = (ast_expression*)var;
4769 /* now there may be function parens again */
4770 if (parser->tok == '(' && OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
4771 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4772 if (parser->tok == '(' && wasarray)
4773 parseerror(parser, "arrays as part of a return type is not supported");
4774 while (parser->tok == '(') {
4775 var = parse_parameter_list(parser, var);
4777 if (name) mem_d(name);
4782 /* finally name it */
4784 if (!ast_value_set_name(var, name)) {
4787 parseerror(parser, "internal error: failed to set name");
4790 /* free the name, ast_value_set_name duplicates */
4797 static bool parse_typedef(parser_t *parser)
4799 ast_value *typevar, *oldtype;
4800 ast_expression *old;
4802 typevar = parse_typename(parser, NULL, NULL);
4807 if ( (old = parser_find_var(parser, typevar->name)) ) {
4808 parseerror(parser, "cannot define a type with the same name as a variable: %s\n"
4809 " -> `%s` has been declared here: %s:%i",
4810 typevar->name, ast_ctx(old).file, ast_ctx(old).line);
4811 ast_delete(typevar);
4815 if ( (oldtype = parser_find_typedef(parser, typevar->name, vec_last(parser->_blocktypedefs))) ) {
4816 parseerror(parser, "type `%s` has already been declared here: %s:%i",
4817 typevar->name, ast_ctx(oldtype).file, ast_ctx(oldtype).line);
4818 ast_delete(typevar);
4822 vec_push(parser->_typedefs, typevar);
4823 util_htset(vec_last(parser->typedefs), typevar->name, typevar);
4825 if (parser->tok != ';') {
4826 parseerror(parser, "expected semicolon after typedef");
4829 if (!parser_next(parser)) {
4830 parseerror(parser, "parse error after typedef");
4837 static const char *cvq_to_str(int cvq) {
4839 case CV_NONE: return "none";
4840 case CV_VAR: return "`var`";
4841 case CV_CONST: return "`const`";
4842 default: return "<INVALID>";
4846 static bool parser_check_qualifiers(parser_t *parser, const ast_value *var, const ast_value *proto)
4849 if (proto->cvq != var->cvq) {
4850 if (!(proto->cvq == CV_CONST && var->cvq == CV_NONE &&
4851 !OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
4852 parser->tok == '='))
4854 return !parsewarning(parser, WARN_DIFFERENT_QUALIFIERS,
4855 "`%s` declared with different qualifiers: %s\n"
4856 " -> previous declaration here: %s:%i uses %s",
4857 var->name, cvq_to_str(var->cvq),
4858 ast_ctx(proto).file, ast_ctx(proto).line,
4859 cvq_to_str(proto->cvq));
4862 av = (var ->expression.flags & AST_FLAG_NORETURN);
4863 ao = (proto->expression.flags & AST_FLAG_NORETURN);
4865 return !parsewarning(parser, WARN_DIFFERENT_ATTRIBUTES,
4866 "`%s` declared with different attributes%s\n"
4867 " -> previous declaration here: %s:%i",
4868 var->name, (av ? ": noreturn" : ""),
4869 ast_ctx(proto).file, ast_ctx(proto).line,
4870 (ao ? ": noreturn" : ""));
4875 static bool create_array_accessors(parser_t *parser, ast_value *var)
4878 util_snprintf(name, sizeof(name), "%s##SET", var->name);
4879 if (!parser_create_array_setter(parser, var, name))
4881 util_snprintf(name, sizeof(name), "%s##GET", var->name);
4882 if (!parser_create_array_getter(parser, var, var->expression.next, name))
4887 static bool parse_array(parser_t *parser, ast_value *array)
4890 if (array->initlist) {
4891 parseerror(parser, "array already initialized elsewhere");
4894 if (!parser_next(parser)) {
4895 parseerror(parser, "parse error in array initializer");
4899 while (parser->tok != '}') {
4900 ast_value *v = (ast_value*)parse_expression_leave(parser, true, false, false);
4903 if (!ast_istype(v, ast_value) || !v->hasvalue || v->cvq != CV_CONST) {
4905 parseerror(parser, "initializing element must be a compile time constant");
4908 vec_push(array->initlist, v->constval);
4909 if (v->expression.vtype == TYPE_STRING) {
4910 array->initlist[i].vstring = util_strdupe(array->initlist[i].vstring);
4914 if (parser->tok == '}')
4916 if (parser->tok != ',' || !parser_next(parser)) {
4917 parseerror(parser, "expected comma or '}' in element list");
4921 if (!parser_next(parser) || parser->tok != ';') {
4922 parseerror(parser, "expected semicolon after initializer, got %s");
4926 if (!parser_next(parser)) {
4927 parseerror(parser, "parse error after initializer");
4932 if (array->expression.flags & AST_FLAG_ARRAY_INIT) {
4933 if (array->expression.count != (size_t)-1) {
4934 parseerror(parser, "array `%s' has already been initialized with %u elements",
4935 array->name, (unsigned)array->expression.count);
4937 array->expression.count = vec_size(array->initlist);
4938 if (!create_array_accessors(parser, array))
4944 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)
4948 ast_expression *old;
4952 ast_value *basetype = NULL;
4954 bool isparam = false;
4955 bool isvector = false;
4956 bool cleanvar = true;
4957 bool wasarray = false;
4959 ast_member *me[3] = { NULL, NULL, NULL };
4961 if (!localblock && is_static)
4962 parseerror(parser, "`static` qualifier is not supported in global scope");
4964 /* get the first complete variable */
4965 var = parse_typename(parser, &basetype, cached_typedef);
4968 ast_delete(basetype);
4976 /* Part 0: finish the type */
4977 if (parser->tok == '(') {
4978 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
4979 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4980 var = parse_parameter_list(parser, var);
4986 /* we only allow 1-dimensional arrays */
4987 if (parser->tok == '[') {
4989 var = parse_arraysize(parser, var);
4995 if (parser->tok == '(' && wasarray) {
4996 parseerror(parser, "arrays as part of a return type is not supported");
4997 /* we'll still parse the type completely for now */
4999 /* for functions returning functions */
5000 while (parser->tok == '(') {
5001 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
5002 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
5003 var = parse_parameter_list(parser, var);
5010 var->cvq = qualifier;
5011 var->expression.flags |= qflags;
5014 * store the vstring back to var for alias and
5015 * deprecation messages.
5017 if (var->expression.flags & AST_FLAG_DEPRECATED ||
5018 var->expression.flags & AST_FLAG_ALIAS)
5019 var->desc = vstring;
5022 * check for validity: (end_sys_..., multiple-definitions, prototypes, ...)
5023 * Also: if there was a prototype, `var` will be deleted and set to `proto` which
5024 * is then filled with the previous definition and the parameter-names replaced.
5026 if (!strcmp(var->name, "nil")) {
5027 if (OPTS_FLAG(UNTYPED_NIL)) {
5028 if (!localblock || !OPTS_FLAG(PERMISSIVE))
5029 parseerror(parser, "name `nil` not allowed (try -fpermissive)");
5031 (void)!parsewarning(parser, WARN_RESERVED_NAMES, "variable name `nil` is reserved");
5034 /* Deal with end_sys_ vars */
5036 if (!strcmp(var->name, "end_sys_globals")) {
5038 parser->crc_globals = vec_size(parser->globals);
5041 else if (!strcmp(var->name, "end_sys_fields")) {
5043 parser->crc_fields = vec_size(parser->fields);
5046 if (was_end && var->expression.vtype == TYPE_FIELD) {
5047 if (parsewarning(parser, WARN_END_SYS_FIELDS,
5048 "global '%s' hint should not be a field",
5049 parser_tokval(parser)))
5056 if (!nofields && var->expression.vtype == TYPE_FIELD)
5058 /* deal with field declarations */
5059 old = parser_find_field(parser, var->name);
5061 if (parsewarning(parser, WARN_FIELD_REDECLARED, "field `%s` already declared here: %s:%i",
5062 var->name, ast_ctx(old).file, (int)ast_ctx(old).line))
5071 parseerror(parser, "field `%s` already declared here: %s:%i",
5072 var->name, ast_ctx(old).file, ast_ctx(old).line);
5077 if ((OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC || OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_FTEQCC) &&
5078 (old = parser_find_global(parser, var->name)))
5080 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
5081 parseerror(parser, "field `%s` already declared here: %s:%i",
5082 var->name, ast_ctx(old).file, ast_ctx(old).line);
5089 /* deal with other globals */
5090 old = parser_find_global(parser, var->name);
5091 if (old && var->expression.vtype == TYPE_FUNCTION && old->vtype == TYPE_FUNCTION)
5093 /* This is a function which had a prototype */
5094 if (!ast_istype(old, ast_value)) {
5095 parseerror(parser, "internal error: prototype is not an ast_value");
5099 proto = (ast_value*)old;
5100 proto->desc = var->desc;
5101 if (!ast_compare_type((ast_expression*)proto, (ast_expression*)var)) {
5102 parseerror(parser, "conflicting types for `%s`, previous declaration was here: %s:%i",
5104 ast_ctx(proto).file, ast_ctx(proto).line);
5108 /* we need the new parameter-names */
5109 for (i = 0; i < vec_size(proto->expression.params); ++i)
5110 ast_value_set_name(proto->expression.params[i], var->expression.params[i]->name);
5111 if (!parser_check_qualifiers(parser, var, proto)) {
5118 proto->expression.flags |= var->expression.flags;
5126 if (parsewarning(parser, WARN_DOUBLE_DECLARATION,
5127 "global `%s` already declared here: %s:%i",
5128 var->name, ast_ctx(old).file, ast_ctx(old).line))
5133 proto = (ast_value*)old;
5134 if (!ast_istype(old, ast_value)) {
5135 parseerror(parser, "internal error: not an ast_value");
5140 if (!parser_check_qualifiers(parser, var, proto)) {
5145 proto->expression.flags |= var->expression.flags;
5149 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC &&
5150 (old = parser_find_field(parser, var->name)))
5152 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
5153 parseerror(parser, "global `%s` already declared here: %s:%i",
5154 var->name, ast_ctx(old).file, ast_ctx(old).line);
5161 else /* it's not a global */
5163 old = parser_find_local(parser, var->name, vec_size(parser->variables)-1, &isparam);
5164 if (old && !isparam) {
5165 parseerror(parser, "local `%s` already declared here: %s:%i",
5166 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
5170 old = parser_find_local(parser, var->name, 0, &isparam);
5171 if (old && isparam) {
5172 if (parsewarning(parser, WARN_LOCAL_SHADOWS,
5173 "local `%s` is shadowing a parameter", var->name))
5175 parseerror(parser, "local `%s` already declared here: %s:%i",
5176 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
5180 if (OPTS_OPTION_U32(OPTION_STANDARD) != COMPILER_GMQCC) {
5188 /* in a noref section we simply bump the usecount */
5189 if (noref || parser->noref)
5193 * Create the global/local, and deal with vector types.
5196 if (var->expression.vtype == TYPE_VECTOR)
5198 else if (var->expression.vtype == TYPE_FIELD &&
5199 var->expression.next->vtype == TYPE_VECTOR)
5203 if (!create_vector_members(var, me)) {
5210 /* deal with global variables, fields, functions */
5211 if (!nofields && var->expression.vtype == TYPE_FIELD && parser->tok != '=') {
5212 var->isfield = true;
5213 vec_push(parser->fields, (ast_expression*)var);
5214 util_htset(parser->htfields, var->name, var);
5216 for (i = 0; i < 3; ++i) {
5217 vec_push(parser->fields, (ast_expression*)me[i]);
5218 util_htset(parser->htfields, me[i]->name, me[i]);
5223 if (!(var->expression.flags & AST_FLAG_ALIAS)) {
5224 parser_addglobal(parser, var->name, (ast_expression*)var);
5226 for (i = 0; i < 3; ++i) {
5227 parser_addglobal(parser, me[i]->name, (ast_expression*)me[i]);
5231 ast_expression *find = parser_find_global(parser, var->desc);
5234 compile_error(parser_ctx(parser), "undeclared variable `%s` for alias `%s`", var->desc, var->name);
5238 if (var->expression.vtype != find->vtype) {
5242 ast_type_to_string(find, ty1, sizeof(ty1));
5243 ast_type_to_string((ast_expression*)var, ty2, sizeof(ty2));
5245 compile_error(parser_ctx(parser), "incompatible types `%s` and `%s` for alias `%s`",
5252 * add alias to aliases table and to corrector
5253 * so corrections can apply for aliases as well.
5255 util_htset(parser->aliases, var->name, find);
5258 * add to corrector so corrections can work
5259 * even for aliases too.
5262 vec_last(parser->correct_variables),
5263 &vec_last(parser->correct_variables_score),
5267 /* generate aliases for vector components */
5271 util_asprintf(&buffer[0], "%s_x", var->desc);
5272 util_asprintf(&buffer[1], "%s_y", var->desc);
5273 util_asprintf(&buffer[2], "%s_z", var->desc);
5275 util_htset(parser->aliases, me[0]->name, parser_find_global(parser, buffer[0]));
5276 util_htset(parser->aliases, me[1]->name, parser_find_global(parser, buffer[1]));
5277 util_htset(parser->aliases, me[2]->name, parser_find_global(parser, buffer[2]));
5284 * add to corrector so corrections can work
5285 * even for aliases too.
5288 vec_last(parser->correct_variables),
5289 &vec_last(parser->correct_variables_score),
5293 vec_last(parser->correct_variables),
5294 &vec_last(parser->correct_variables_score),
5298 vec_last(parser->correct_variables),
5299 &vec_last(parser->correct_variables_score),
5307 /* a static adds itself to be generated like any other global
5308 * but is added to the local namespace instead
5310 char *defname = NULL;
5311 size_t prefix_len, ln;
5313 ln = strlen(parser->function->name);
5314 vec_append(defname, ln, parser->function->name);
5316 vec_append(defname, 2, "::");
5317 /* remember the length up to here */
5318 prefix_len = vec_size(defname);
5320 /* Add it to the local scope */
5321 util_htset(vec_last(parser->variables), var->name, (void*)var);
5325 vec_last(parser->correct_variables),
5326 &vec_last(parser->correct_variables_score),
5330 /* now rename the global */
5331 ln = strlen(var->name);
5332 vec_append(defname, ln, var->name);
5333 ast_value_set_name(var, defname);
5335 /* push it to the to-be-generated globals */
5336 vec_push(parser->globals, (ast_expression*)var);
5338 /* same game for the vector members */
5340 for (i = 0; i < 3; ++i) {
5341 util_htset(vec_last(parser->variables), me[i]->name, (void*)(me[i]));
5345 vec_last(parser->correct_variables),
5346 &vec_last(parser->correct_variables_score),
5350 vec_shrinkto(defname, prefix_len);
5351 ln = strlen(me[i]->name);
5352 vec_append(defname, ln, me[i]->name);
5353 ast_member_set_name(me[i], defname);
5355 vec_push(parser->globals, (ast_expression*)me[i]);
5360 vec_push(localblock->locals, var);
5361 parser_addlocal(parser, var->name, (ast_expression*)var);
5363 for (i = 0; i < 3; ++i) {
5364 parser_addlocal(parser, me[i]->name, (ast_expression*)me[i]);
5365 ast_block_collect(localblock, (ast_expression*)me[i]);
5371 me[0] = me[1] = me[2] = NULL;
5376 if (var->expression.vtype == TYPE_ARRAY) {
5377 if (var->expression.count != (size_t)-1) {
5378 if (!create_array_accessors(parser, var))
5382 else if (!localblock && !nofields &&
5383 var->expression.vtype == TYPE_FIELD &&
5384 var->expression.next->vtype == TYPE_ARRAY)
5387 ast_expression *telem;
5389 ast_value *array = (ast_value*)var->expression.next;
5391 if (!ast_istype(var->expression.next, ast_value)) {
5392 parseerror(parser, "internal error: field element type must be an ast_value");
5396 util_snprintf(name, sizeof(name), "%s##SETF", var->name);
5397 if (!parser_create_array_field_setter(parser, array, name))
5400 telem = ast_type_copy(ast_ctx(var), array->expression.next);
5401 tfield = ast_value_new(ast_ctx(var), "<.type>", TYPE_FIELD);
5402 tfield->expression.next = telem;
5403 util_snprintf(name, sizeof(name), "%s##GETFP", var->name);
5404 if (!parser_create_array_getter(parser, array, (ast_expression*)tfield, name)) {
5412 if (parser->tok == ';') {
5413 ast_delete(basetype);
5414 if (!parser_next(parser)) {
5415 parseerror(parser, "error after variable declaration");
5421 if (parser->tok == ',')
5425 if (!var || (!localblock && !nofields && basetype->expression.vtype == TYPE_FIELD)) {
5428 parseerror(parser, "missing comma or semicolon while parsing variables");
5432 if (localblock && OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
5433 if (parsewarning(parser, WARN_LOCAL_CONSTANTS,
5434 "initializing expression turns variable `%s` into a constant in this standard",
5441 if (parser->tok != '{' || var->expression.vtype != TYPE_FUNCTION) {
5442 if (parser->tok != '=') {
5443 if (!strcmp(parser_tokval(parser), "break")) {
5444 if (!parser_next(parser)) {
5445 parseerror(parser, "error parsing break definition");
5448 (void)!!parsewarning(parser, WARN_BREAKDEF, "break definition ignored (suggest removing it)");
5450 parseerror(parser, "missing semicolon or initializer, got: `%s`", parser_tokval(parser));
5455 if (!parser_next(parser)) {
5456 parseerror(parser, "error parsing initializer");
5460 else if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
5461 parseerror(parser, "expected '=' before function body in this standard");
5464 if (parser->tok == '#') {
5465 ast_function *func = NULL;
5466 ast_value *number = NULL;
5472 parseerror(parser, "cannot declare builtins within functions");
5475 if (var->expression.vtype != TYPE_FUNCTION) {
5476 parseerror(parser, "unexpected builtin number, '%s' is not a function", var->name);
5479 if (!parser_next(parser)) {
5480 parseerror(parser, "expected builtin number");
5484 if (OPTS_FLAG(EXPRESSIONS_FOR_BUILTINS)) {
5485 number = (ast_value*)parse_expression_leave(parser, true, false, false);
5487 parseerror(parser, "builtin number expected");
5490 if (!ast_istype(number, ast_value) || !number->hasvalue || number->cvq != CV_CONST)
5493 parseerror(parser, "builtin number must be a compile time constant");
5496 if (number->expression.vtype == TYPE_INTEGER)
5497 builtin_num = number->constval.vint;
5498 else if (number->expression.vtype == TYPE_FLOAT)
5499 builtin_num = number->constval.vfloat;
5502 parseerror(parser, "builtin number must be an integer constant");
5507 fractional = modff(builtin_num, &integral);
5508 if (builtin_num < 0 || fractional != 0) {
5509 parseerror(parser, "builtin number must be an integer greater than zero");
5513 /* we only want the integral part anyways */
5514 builtin_num = integral;
5515 } else if (parser->tok == TOKEN_INTCONST) {
5516 builtin_num = parser_token(parser)->constval.i;
5518 parseerror(parser, "builtin number must be a compile time constant");
5522 if (var->hasvalue) {
5523 (void)!parsewarning(parser, WARN_DOUBLE_DECLARATION,
5524 "builtin `%s` has already been defined\n"
5525 " -> previous declaration here: %s:%i",
5526 var->name, ast_ctx(var).file, (int)ast_ctx(var).line);
5530 func = ast_function_new(ast_ctx(var), var->name, var);
5532 parseerror(parser, "failed to allocate function for `%s`", var->name);
5535 vec_push(parser->functions, func);
5537 func->builtin = -builtin_num-1;
5540 if (OPTS_FLAG(EXPRESSIONS_FOR_BUILTINS)
5541 ? (parser->tok != ',' && parser->tok != ';')
5542 : (!parser_next(parser)))
5544 parseerror(parser, "expected comma or semicolon");
5546 ast_function_delete(func);
5547 var->constval.vfunc = NULL;
5551 else if (var->expression.vtype == TYPE_ARRAY && parser->tok == '{')
5554 /* Note that fteqcc and most others don't even *have*
5555 * local arrays, so this is not a high priority.
5557 parseerror(parser, "TODO: initializers for local arrays");
5561 var->hasvalue = true;
5562 if (!parse_array(parser, var))
5565 else if (var->expression.vtype == TYPE_FUNCTION && (parser->tok == '{' || parser->tok == '['))
5568 parseerror(parser, "cannot declare functions within functions");
5573 ast_ctx(proto) = parser_ctx(parser);
5575 if (!parse_function_body(parser, var))
5577 ast_delete(basetype);
5578 for (i = 0; i < vec_size(parser->gotos); ++i)
5579 parseerror(parser, "undefined label: `%s`", parser->gotos[i]->name);
5580 vec_free(parser->gotos);
5581 vec_free(parser->labels);
5584 ast_expression *cexp;
5587 cexp = parse_expression_leave(parser, true, false, false);
5592 cval = (ast_value*)cexp;
5593 if (cval != parser->nil &&
5594 (!ast_istype(cval, ast_value) || ((!cval->hasvalue || cval->cvq != CV_CONST) && !cval->isfield))
5597 parseerror(parser, "cannot initialize a global constant variable with a non-constant expression");
5601 if (!OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
5602 qualifier != CV_VAR)
5604 var->cvq = CV_CONST;
5606 if (cval == parser->nil)
5607 var->expression.flags |= AST_FLAG_INITIALIZED;
5610 var->hasvalue = true;
5611 if (cval->expression.vtype == TYPE_STRING)
5612 var->constval.vstring = parser_strdup(cval->constval.vstring);
5613 else if (cval->expression.vtype == TYPE_FIELD)
5614 var->constval.vfield = cval;
5616 memcpy(&var->constval, &cval->constval, sizeof(var->constval));
5622 shunt sy = { NULL, NULL, NULL, NULL };
5625 vec_push(sy.out, syexp(ast_ctx(var), (ast_expression*)var));
5626 vec_push(sy.out, syexp(ast_ctx(cexp), (ast_expression*)cexp));
5627 vec_push(sy.ops, syop(ast_ctx(var), parser->assign_op));
5628 if (!parser_sy_apply_operator(parser, &sy))
5631 if (vec_size(sy.out) != 1 && vec_size(sy.ops) != 0)
5632 parseerror(parser, "internal error: leaked operands");
5633 if (!ast_block_add_expr(localblock, (ast_expression*)sy.out[0].out))
5644 if (parser->tok == ',') {
5645 if (!parser_next(parser)) {
5646 parseerror(parser, "expected another variable");
5650 if (parser->tok != TOKEN_IDENT) {
5651 parseerror(parser, "expected another variable");
5654 var = ast_value_copy(basetype);
5656 ast_value_set_name(var, parser_tokval(parser));
5657 if (!parser_next(parser)) {
5658 parseerror(parser, "error parsing variable declaration");
5664 if (parser->tok != ';') {
5665 parseerror(parser, "missing semicolon after variables");
5669 if (!parser_next(parser)) {
5670 parseerror(parser, "parse error after variable declaration");
5674 ast_delete(basetype);
5678 if (cleanvar && var)
5680 ast_delete(basetype);
5684 ast_delete(basetype);
5685 if (cleanvar && var)
5687 if (me[0]) ast_member_delete(me[0]);
5688 if (me[1]) ast_member_delete(me[1]);
5689 if (me[2]) ast_member_delete(me[2]);
5693 static bool parser_global_statement(parser_t *parser)
5697 bool is_static = false;
5698 uint32_t qflags = 0;
5699 ast_value *istype = NULL;
5700 char *vstring = NULL;
5702 if (parser->tok == TOKEN_IDENT)
5703 istype = parser_find_typedef(parser, parser_tokval(parser), 0);
5705 if (istype || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
5707 return parse_variable(parser, NULL, false, CV_NONE, istype, false, false, 0, NULL);
5709 else if (parse_qualifiers(parser, false, &cvq, &noref, &is_static, &qflags, &vstring))
5711 if (cvq == CV_WRONG)
5713 return parse_variable(parser, NULL, true, cvq, NULL, noref, is_static, qflags, vstring);
5715 else if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "enum"))
5717 return parse_enum(parser);
5719 else if (parser->tok == TOKEN_KEYWORD)
5721 if (!strcmp(parser_tokval(parser), "typedef")) {
5722 if (!parser_next(parser)) {
5723 parseerror(parser, "expected type definition after 'typedef'");
5726 return parse_typedef(parser);
5728 parseerror(parser, "unrecognized keyword `%s`", parser_tokval(parser));
5731 else if (parser->tok == '#')
5733 return parse_pragma(parser);
5735 else if (parser->tok == '$')
5737 if (!parser_next(parser)) {
5738 parseerror(parser, "parse error");
5744 parseerror(parser, "unexpected token: `%s`", parser->lex->tok.value);
5750 static uint16_t progdefs_crc_sum(uint16_t old, const char *str)
5752 return util_crc16(old, str, strlen(str));
5755 static void progdefs_crc_file(const char *str)
5757 /* write to progdefs.h here */
5761 static uint16_t progdefs_crc_both(uint16_t old, const char *str)
5763 old = progdefs_crc_sum(old, str);
5764 progdefs_crc_file(str);
5768 static void generate_checksum(parser_t *parser, ir_builder *ir)
5770 uint16_t crc = 0xFFFF;
5774 crc = progdefs_crc_both(crc, "\n/* file generated by qcc, do not modify */\n\ntypedef struct\n{");
5775 crc = progdefs_crc_sum(crc, "\tint\tpad[28];\n");
5777 progdefs_crc_file("\tint\tpad;\n");
5778 progdefs_crc_file("\tint\tofs_return[3];\n");
5779 progdefs_crc_file("\tint\tofs_parm0[3];\n");
5780 progdefs_crc_file("\tint\tofs_parm1[3];\n");
5781 progdefs_crc_file("\tint\tofs_parm2[3];\n");
5782 progdefs_crc_file("\tint\tofs_parm3[3];\n");
5783 progdefs_crc_file("\tint\tofs_parm4[3];\n");
5784 progdefs_crc_file("\tint\tofs_parm5[3];\n");
5785 progdefs_crc_file("\tint\tofs_parm6[3];\n");
5786 progdefs_crc_file("\tint\tofs_parm7[3];\n");
5788 for (i = 0; i < parser->crc_globals; ++i) {
5789 if (!ast_istype(parser->globals[i], ast_value))
5791 value = (ast_value*)(parser->globals[i]);
5792 switch (value->expression.vtype) {
5793 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
5794 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
5795 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
5796 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
5798 crc = progdefs_crc_both(crc, "\tint\t");
5801 crc = progdefs_crc_both(crc, value->name);
5802 crc = progdefs_crc_both(crc, ";\n");
5804 crc = progdefs_crc_both(crc, "} globalvars_t;\n\ntypedef struct\n{\n");
5805 for (i = 0; i < parser->crc_fields; ++i) {
5806 if (!ast_istype(parser->fields[i], ast_value))
5808 value = (ast_value*)(parser->fields[i]);
5809 switch (value->expression.next->vtype) {
5810 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
5811 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
5812 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
5813 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
5815 crc = progdefs_crc_both(crc, "\tint\t");
5818 crc = progdefs_crc_both(crc, value->name);
5819 crc = progdefs_crc_both(crc, ";\n");
5821 crc = progdefs_crc_both(crc, "} entvars_t;\n\n");
5822 ir->code->crc = crc;
5825 parser_t *parser_create()
5828 lex_ctx_t empty_ctx;
5831 parser = (parser_t*)mem_a(sizeof(parser_t));
5835 memset(parser, 0, sizeof(*parser));
5837 for (i = 0; i < operator_count; ++i) {
5838 if (operators[i].id == opid1('=')) {
5839 parser->assign_op = operators+i;
5843 if (!parser->assign_op) {
5844 printf("internal error: initializing parser: failed to find assign operator\n");
5849 vec_push(parser->variables, parser->htfields = util_htnew(PARSER_HT_SIZE));
5850 vec_push(parser->variables, parser->htglobals = util_htnew(PARSER_HT_SIZE));
5851 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
5852 vec_push(parser->_blocktypedefs, 0);
5854 parser->aliases = util_htnew(PARSER_HT_SIZE);
5857 vec_push(parser->correct_variables, correct_trie_new());
5858 vec_push(parser->correct_variables_score, NULL);
5860 empty_ctx.file = "<internal>";
5862 empty_ctx.column = 0;
5863 parser->nil = ast_value_new(empty_ctx, "nil", TYPE_NIL);
5864 parser->nil->cvq = CV_CONST;
5865 if (OPTS_FLAG(UNTYPED_NIL))
5866 util_htset(parser->htglobals, "nil", (void*)parser->nil);
5868 parser->max_param_count = 1;
5870 parser->const_vec[0] = ast_value_new(empty_ctx, "<vector.x>", TYPE_NOEXPR);
5871 parser->const_vec[1] = ast_value_new(empty_ctx, "<vector.y>", TYPE_NOEXPR);
5872 parser->const_vec[2] = ast_value_new(empty_ctx, "<vector.z>", TYPE_NOEXPR);
5874 if (OPTS_OPTION_BOOL(OPTION_ADD_INFO)) {
5875 parser->reserved_version = ast_value_new(empty_ctx, "reserved:version", TYPE_STRING);
5876 parser->reserved_version->cvq = CV_CONST;
5877 parser->reserved_version->hasvalue = true;
5878 parser->reserved_version->expression.flags |= AST_FLAG_INCLUDE_DEF;
5879 parser->reserved_version->constval.vstring = util_strdup(GMQCC_FULL_VERSION_STRING);
5881 parser->reserved_version = NULL;
5884 parser->fold = fold_init(parser);
5888 static bool parser_compile(parser_t *parser)
5890 /* initial lexer/parser state */
5891 parser->lex->flags.noops = true;
5893 if (parser_next(parser))
5895 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
5897 if (!parser_global_statement(parser)) {
5898 if (parser->tok == TOKEN_EOF)
5899 parseerror(parser, "unexpected end of file");
5900 else if (compile_errors)
5901 parseerror(parser, "there have been errors, bailing out");
5902 lex_close(parser->lex);
5908 parseerror(parser, "parse error");
5909 lex_close(parser->lex);
5914 lex_close(parser->lex);
5917 return !compile_errors;
5920 bool parser_compile_file(parser_t *parser, const char *filename)
5922 parser->lex = lex_open(filename);
5924 con_err("failed to open file \"%s\"\n", filename);
5927 return parser_compile(parser);
5930 bool parser_compile_string(parser_t *parser, const char *name, const char *str, size_t len)
5932 parser->lex = lex_open_string(str, len, name);
5934 con_err("failed to create lexer for string \"%s\"\n", name);
5937 return parser_compile(parser);
5940 static void parser_remove_ast(parser_t *parser)
5943 if (parser->ast_cleaned)
5945 parser->ast_cleaned = true;
5946 for (i = 0; i < vec_size(parser->accessors); ++i) {
5947 ast_delete(parser->accessors[i]->constval.vfunc);
5948 parser->accessors[i]->constval.vfunc = NULL;
5949 ast_delete(parser->accessors[i]);
5951 for (i = 0; i < vec_size(parser->functions); ++i) {
5952 ast_delete(parser->functions[i]);
5954 for (i = 0; i < vec_size(parser->fields); ++i) {
5955 ast_delete(parser->fields[i]);
5957 for (i = 0; i < vec_size(parser->globals); ++i) {
5958 ast_delete(parser->globals[i]);
5960 vec_free(parser->accessors);
5961 vec_free(parser->functions);
5962 vec_free(parser->globals);
5963 vec_free(parser->fields);
5965 for (i = 0; i < vec_size(parser->variables); ++i)
5966 util_htdel(parser->variables[i]);
5967 vec_free(parser->variables);
5968 vec_free(parser->_blocklocals);
5969 vec_free(parser->_locals);
5972 for (i = 0; i < vec_size(parser->correct_variables); ++i) {
5973 correct_del(parser->correct_variables[i], parser->correct_variables_score[i]);
5975 vec_free(parser->correct_variables);
5976 vec_free(parser->correct_variables_score);
5978 for (i = 0; i < vec_size(parser->_typedefs); ++i)
5979 ast_delete(parser->_typedefs[i]);
5980 vec_free(parser->_typedefs);
5981 for (i = 0; i < vec_size(parser->typedefs); ++i)
5982 util_htdel(parser->typedefs[i]);
5983 vec_free(parser->typedefs);
5984 vec_free(parser->_blocktypedefs);
5986 vec_free(parser->_block_ctx);
5988 vec_free(parser->labels);
5989 vec_free(parser->gotos);
5990 vec_free(parser->breaks);
5991 vec_free(parser->continues);
5993 ast_value_delete(parser->nil);
5995 ast_value_delete(parser->const_vec[0]);
5996 ast_value_delete(parser->const_vec[1]);
5997 ast_value_delete(parser->const_vec[2]);
5999 if (parser->reserved_version)
6000 ast_value_delete(parser->reserved_version);
6002 util_htdel(parser->aliases);
6003 intrin_intrinsics_destroy(parser);
6004 fold_cleanup(parser->fold);
6007 void parser_cleanup(parser_t *parser)
6009 parser_remove_ast(parser);
6013 bool parser_finish(parser_t *parser, const char *output)
6019 if (compile_errors) {
6020 con_out("*** there were compile errors\n");
6024 ir = ir_builder_new("gmqcc_out");
6026 con_out("failed to allocate builder\n");
6030 for (i = 0; i < vec_size(parser->fields); ++i) {
6033 if (!ast_istype(parser->fields[i], ast_value))
6035 field = (ast_value*)parser->fields[i];
6036 hasvalue = field->hasvalue;
6037 field->hasvalue = false;
6038 if (!ast_global_codegen((ast_value*)field, ir, true)) {
6039 con_out("failed to generate field %s\n", field->name);
6040 ir_builder_delete(ir);
6045 ast_expression *subtype;
6046 field->hasvalue = true;
6047 subtype = field->expression.next;
6048 ifld = ir_builder_create_field(ir, field->name, subtype->vtype);
6049 if (subtype->vtype == TYPE_FIELD)
6050 ifld->fieldtype = subtype->next->vtype;
6051 else if (subtype->vtype == TYPE_FUNCTION)
6052 ifld->outtype = subtype->next->vtype;
6053 (void)!ir_value_set_field(field->ir_v, ifld);
6056 for (i = 0; i < vec_size(parser->globals); ++i) {
6058 if (!ast_istype(parser->globals[i], ast_value))
6060 asvalue = (ast_value*)(parser->globals[i]);
6061 if (!asvalue->uses && !asvalue->hasvalue && asvalue->expression.vtype != TYPE_FUNCTION) {
6062 retval = retval && !compile_warning(ast_ctx(asvalue), WARN_UNUSED_VARIABLE,
6063 "unused global: `%s`", asvalue->name);
6065 if (!ast_global_codegen(asvalue, ir, false)) {
6066 con_out("failed to generate global %s\n", asvalue->name);
6067 ir_builder_delete(ir);
6071 /* Build function vararg accessor ast tree now before generating
6072 * immediates, because the accessors may add new immediates
6074 for (i = 0; i < vec_size(parser->functions); ++i) {
6075 ast_function *f = parser->functions[i];
6077 if (parser->max_param_count > vec_size(f->vtype->expression.params)) {
6078 f->varargs->expression.count = parser->max_param_count - vec_size(f->vtype->expression.params);
6079 if (!parser_create_array_setter_impl(parser, f->varargs)) {
6080 con_out("failed to generate vararg setter for %s\n", f->name);
6081 ir_builder_delete(ir);
6084 if (!parser_create_array_getter_impl(parser, f->varargs)) {
6085 con_out("failed to generate vararg getter for %s\n", f->name);
6086 ir_builder_delete(ir);
6090 ast_delete(f->varargs);
6095 /* Now we can generate immediates */
6096 if (!fold_generate(parser->fold, ir))
6099 for (i = 0; i < vec_size(parser->globals); ++i) {
6101 if (!ast_istype(parser->globals[i], ast_value))
6103 asvalue = (ast_value*)(parser->globals[i]);
6104 if (!(asvalue->expression.flags & AST_FLAG_INITIALIZED))
6106 if (asvalue->cvq == CV_CONST && !asvalue->hasvalue)
6107 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_CONSTANT,
6108 "uninitialized constant: `%s`",
6110 else if ((asvalue->cvq == CV_NONE || asvalue->cvq == CV_CONST) && !asvalue->hasvalue)
6111 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_GLOBAL,
6112 "uninitialized global: `%s`",
6115 if (!ast_generate_accessors(asvalue, ir)) {
6116 ir_builder_delete(ir);
6120 for (i = 0; i < vec_size(parser->fields); ++i) {
6122 asvalue = (ast_value*)(parser->fields[i]->next);
6124 if (!ast_istype((ast_expression*)asvalue, ast_value))
6126 if (asvalue->expression.vtype != TYPE_ARRAY)
6128 if (!ast_generate_accessors(asvalue, ir)) {
6129 ir_builder_delete(ir);
6133 if (parser->reserved_version &&
6134 !ast_global_codegen(parser->reserved_version, ir, false))
6136 con_out("failed to generate reserved::version");
6137 ir_builder_delete(ir);
6140 for (i = 0; i < vec_size(parser->functions); ++i) {
6141 ast_function *f = parser->functions[i];
6142 if (!ast_function_codegen(f, ir)) {
6143 con_out("failed to generate function %s\n", f->name);
6144 ir_builder_delete(ir);
6149 generate_checksum(parser, ir);
6151 if (OPTS_OPTION_BOOL(OPTION_DUMP))
6152 ir_builder_dump(ir, con_out);
6153 for (i = 0; i < vec_size(parser->functions); ++i) {
6154 if (!ir_function_finalize(parser->functions[i]->ir_func)) {
6155 con_out("failed to finalize function %s\n", parser->functions[i]->name);
6156 ir_builder_delete(ir);
6160 parser_remove_ast(parser);
6162 if (compile_Werrors) {
6163 con_out("*** there were warnings treated as errors\n");
6164 compile_show_werrors();
6169 if (OPTS_OPTION_BOOL(OPTION_DUMPFIN))
6170 ir_builder_dump(ir, con_out);
6172 if (!ir_builder_generate(ir, output)) {
6173 con_out("*** failed to generate output file\n");
6174 ir_builder_delete(ir);
6178 ir_builder_delete(ir);