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
32 /* beginning of locals */
33 #define PARSER_HT_LOCALS 2
35 #define PARSER_HT_SIZE 128
36 #define TYPEDEF_HT_SIZE 16
42 ast_expression **globals;
43 ast_expression **fields;
44 ast_function **functions;
45 ast_value **imm_float;
46 ast_value **imm_string;
47 ast_value **imm_vector;
50 /* must be deleted first, they reference immediates and values */
51 ast_value **accessors;
53 ast_value *imm_float_zero;
54 ast_value *imm_float_one;
55 ast_value *imm_float_neg_one;
57 ast_value *imm_vector_zero;
60 ast_value *reserved_version;
65 ast_function *function;
68 /* All the labels the function defined...
69 * Should they be in ast_function instead?
74 const char **continues;
76 /* A list of hashtables for each scope */
82 /* same as above but for the spelling corrector */
83 correct_trie_t **correct_variables;
84 size_t ***correct_variables_score; /* vector of vector of size_t* */
86 /* not to be used directly, we use the hash table */
87 ast_expression **_locals;
89 ast_value **_typedefs;
90 size_t *_blocktypedefs;
93 /* we store the '=' operator info */
94 const oper_info *assign_op;
97 ast_value *const_vec[3];
102 /* collected information */
103 size_t max_param_count;
106 static ast_expression * const intrinsic_debug_typestring = (ast_expression*)0x1;
108 static void parser_enterblock(parser_t *parser);
109 static bool parser_leaveblock(parser_t *parser);
110 static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e);
111 static void parser_addglobal(parser_t *parser, const char *name, ast_expression *e);
112 static bool parse_typedef(parser_t *parser);
113 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);
114 static ast_block* parse_block(parser_t *parser);
115 static bool parse_block_into(parser_t *parser, ast_block *block);
116 static bool parse_statement_or_block(parser_t *parser, ast_expression **out);
117 static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases);
118 static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels);
119 static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels);
120 static ast_value* parser_create_array_setter_proto(parser_t *parser, ast_value *array, const char *funcname);
121 static ast_value* parser_create_array_getter_proto(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname);
122 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
123 static ast_expression *parser_builtin_pow(parser_t *);
125 static void parseerror(parser_t *parser, const char *fmt, ...)
129 vcompile_error(parser->lex->tok.ctx, fmt, ap);
133 /* returns true if it counts as an error */
134 static bool GMQCC_WARN parsewarning(parser_t *parser, int warntype, const char *fmt, ...)
139 r = vcompile_warning(parser->lex->tok.ctx, warntype, fmt, ap);
144 /**********************************************************************
145 * some maths used for constant folding
148 vector vec3_add(vector a, vector b)
157 vector vec3_sub(vector a, vector b)
166 qcfloat vec3_mulvv(vector a, vector b)
168 return (a.x * b.x + a.y * b.y + a.z * b.z);
171 vector vec3_mulvf(vector a, float b)
180 /**********************************************************************
184 bool parser_next(parser_t *parser)
186 /* lex_do kills the previous token */
187 parser->tok = lex_do(parser->lex);
188 if (parser->tok == TOKEN_EOF)
190 if (parser->tok >= TOKEN_ERROR) {
191 parseerror(parser, "lex error");
197 #define parser_tokval(p) ((p)->lex->tok.value)
198 #define parser_token(p) (&((p)->lex->tok))
199 #define parser_ctx(p) ((p)->lex->tok.ctx)
201 static ast_value* parser_const_float(parser_t *parser, double d)
206 for (i = 0; i < vec_size(parser->imm_float); ++i) {
207 const double compare = parser->imm_float[i]->constval.vfloat;
208 if (memcmp((const void*)&compare, (const void *)&d, sizeof(double)) == 0)
209 return parser->imm_float[i];
212 ctx = parser_ctx(parser);
214 memset(&ctx, 0, sizeof(ctx));
216 out = ast_value_new(ctx, "#IMMEDIATE", TYPE_FLOAT);
218 out->hasvalue = true;
219 out->constval.vfloat = d;
220 vec_push(parser->imm_float, out);
224 static ast_value* parser_const_float_0(parser_t *parser)
226 if (!parser->imm_float_zero)
227 parser->imm_float_zero = parser_const_float(parser, 0);
228 return parser->imm_float_zero;
231 static ast_value* parser_const_float_neg1(parser_t *parser) {
232 if (!parser->imm_float_neg_one)
233 parser->imm_float_neg_one = parser_const_float(parser, -1);
234 return parser->imm_float_neg_one;
237 static ast_value* parser_const_float_1(parser_t *parser)
239 if (!parser->imm_float_one)
240 parser->imm_float_one = parser_const_float(parser, 1);
241 return parser->imm_float_one;
244 static char *parser_strdup(const char *str)
247 /* actually dup empty strings */
248 char *out = (char*)mem_a(1);
252 return util_strdup(str);
255 static ast_value* parser_const_string(parser_t *parser, const char *str, bool dotranslate)
259 for (i = 0; i < vec_size(parser->imm_string); ++i) {
260 if (!strcmp(parser->imm_string[i]->constval.vstring, str))
261 return parser->imm_string[i];
265 snprintf(name, sizeof(name), "dotranslate_%lu", (unsigned long)(parser->translated++));
266 out = ast_value_new(parser_ctx(parser), name, TYPE_STRING);
268 out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_STRING);
270 out->hasvalue = true;
271 out->constval.vstring = parser_strdup(str);
272 vec_push(parser->imm_string, out);
276 static ast_value* parser_const_vector(parser_t *parser, vector v)
280 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
281 if (!memcmp(&parser->imm_vector[i]->constval.vvec, &v, sizeof(v)))
282 return parser->imm_vector[i];
284 out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_VECTOR);
286 out->hasvalue = true;
287 out->constval.vvec = v;
288 vec_push(parser->imm_vector, out);
292 static ast_value* parser_const_vector_f(parser_t *parser, float x, float y, float z)
298 return parser_const_vector(parser, v);
301 static ast_value* parser_const_vector_0(parser_t *parser)
303 if (!parser->imm_vector_zero)
304 parser->imm_vector_zero = parser_const_vector_f(parser, 0, 0, 0);
305 return parser->imm_vector_zero;
308 static ast_expression* parser_find_field(parser_t *parser, const char *name)
310 return ( ast_expression*)util_htget(parser->htfields, name);
313 static ast_expression* parser_find_label(parser_t *parser, const char *name)
316 for(i = 0; i < vec_size(parser->labels); i++)
317 if (!strcmp(parser->labels[i]->name, name))
318 return (ast_expression*)parser->labels[i];
322 static ast_expression* parser_find_global(parser_t *parser, const char *name)
324 ast_expression *var = (ast_expression*)util_htget(parser->aliases, parser_tokval(parser));
327 return (ast_expression*)util_htget(parser->htglobals, name);
330 static ast_expression* parser_find_param(parser_t *parser, const char *name)
334 if (!parser->function)
336 fun = parser->function->vtype;
337 for (i = 0; i < vec_size(fun->expression.params); ++i) {
338 if (!strcmp(fun->expression.params[i]->name, name))
339 return (ast_expression*)(fun->expression.params[i]);
344 static ast_expression* parser_find_local(parser_t *parser, const char *name, size_t upto, bool *isparam)
349 hash = util_hthash(parser->htglobals, name);
352 for (i = vec_size(parser->variables); i > upto;) {
354 if ( (e = (ast_expression*)util_htgeth(parser->variables[i], name, hash)) )
358 return parser_find_param(parser, name);
361 static ast_expression* parser_find_var(parser_t *parser, const char *name)
365 v = parser_find_local(parser, name, 0, &dummy);
366 if (!v) v = parser_find_global(parser, name);
370 static ast_value* parser_find_typedef(parser_t *parser, const char *name, size_t upto)
374 hash = util_hthash(parser->typedefs[0], name);
376 for (i = vec_size(parser->typedefs); i > upto;) {
378 if ( (e = (ast_value*)util_htgeth(parser->typedefs[i], name, hash)) )
386 size_t etype; /* 0 = expression, others are operators */
390 ast_block *block; /* for commas and function calls */
409 static sy_elem syexp(lex_ctx ctx, ast_expression *v) {
420 static sy_elem syblock(lex_ctx ctx, ast_block *v) {
424 e.out = (ast_expression*)v;
431 static sy_elem syop(lex_ctx ctx, const oper_info *op) {
433 e.etype = 1 + (op - operators);
442 static sy_elem syparen(lex_ctx ctx, size_t off) {
453 /* With regular precedence rules, ent.foo[n] is the same as (ent.foo)[n],
454 * so we need to rotate it to become ent.(foo[n]).
456 static bool rotate_entfield_array_index_nodes(ast_expression **out)
458 ast_array_index *index, *oldindex;
459 ast_entfield *entfield;
463 ast_expression *entity;
465 lex_ctx ctx = ast_ctx(*out);
467 if (!ast_istype(*out, ast_array_index))
469 index = (ast_array_index*)*out;
471 if (!ast_istype(index->array, ast_entfield))
473 entfield = (ast_entfield*)index->array;
475 if (!ast_istype(entfield->field, ast_value))
477 field = (ast_value*)entfield->field;
480 entity = entfield->entity;
484 index = ast_array_index_new(ctx, (ast_expression*)field, sub);
485 entfield = ast_entfield_new(ctx, entity, (ast_expression*)index);
486 *out = (ast_expression*)entfield;
488 oldindex->array = NULL;
489 oldindex->index = NULL;
490 ast_delete(oldindex);
495 static bool immediate_is_true(lex_ctx ctx, ast_value *v)
497 switch (v->expression.vtype) {
499 return !!v->constval.vfloat;
501 return !!v->constval.vint;
503 if (OPTS_FLAG(CORRECT_LOGIC))
504 return v->constval.vvec.x &&
505 v->constval.vvec.y &&
508 return !!(v->constval.vvec.x);
510 if (!v->constval.vstring)
512 if (v->constval.vstring && OPTS_FLAG(TRUE_EMPTY_STRINGS))
514 return !!v->constval.vstring[0];
516 compile_error(ctx, "internal error: immediate_is_true on invalid type");
517 return !!v->constval.vfunc;
521 static bool parser_sy_apply_operator(parser_t *parser, shunt *sy)
525 ast_expression *out = NULL;
526 ast_expression *exprs[3];
527 ast_block *blocks[3];
528 ast_value *asvalue[3];
529 ast_binstore *asbinstore;
530 size_t i, assignop, addop, subop;
531 qcint generated_op = 0;
536 if (!vec_size(sy->ops)) {
537 parseerror(parser, "internal error: missing operator");
541 if (vec_last(sy->ops).isparen) {
542 parseerror(parser, "unmatched parenthesis");
546 op = &operators[vec_last(sy->ops).etype - 1];
547 ctx = vec_last(sy->ops).ctx;
549 if (vec_size(sy->out) < op->operands) {
550 compile_error(ctx, "internal error: not enough operands: %i (operator %s (%i))", vec_size(sy->out),
551 op->op, (int)op->id);
555 vec_shrinkby(sy->ops, 1);
557 /* op(:?) has no input and no output */
561 vec_shrinkby(sy->out, op->operands);
562 for (i = 0; i < op->operands; ++i) {
563 exprs[i] = sy->out[vec_size(sy->out)+i].out;
564 blocks[i] = sy->out[vec_size(sy->out)+i].block;
565 asvalue[i] = (ast_value*)exprs[i];
567 if (exprs[i]->expression.vtype == TYPE_NOEXPR &&
568 !(i != 0 && op->id == opid2('?',':')) &&
569 !(i == 1 && op->id == opid1('.')))
571 if (ast_istype(exprs[i], ast_label))
572 compile_error(ast_ctx(exprs[i]), "expected expression, got an unknown identifier");
574 compile_error(ast_ctx(exprs[i]), "not an expression");
575 (void)!compile_warning(ast_ctx(exprs[i]), WARN_DEBUG, "expression %u\n", (unsigned int)i);
579 if (blocks[0] && !vec_size(blocks[0]->exprs) && op->id != opid1(',')) {
580 compile_error(ctx, "internal error: operator cannot be applied on empty blocks");
584 #define NotSameType(T) \
585 (exprs[0]->expression.vtype != exprs[1]->expression.vtype || \
586 exprs[0]->expression.vtype != T)
587 #define CanConstFold1(A) \
588 (ast_istype((A), ast_value) && ((ast_value*)(A))->hasvalue && (((ast_value*)(A))->cvq == CV_CONST) &&\
589 (A)->expression.vtype != TYPE_FUNCTION)
590 #define CanConstFold(A, B) \
591 (CanConstFold1(A) && CanConstFold1(B))
592 #define ConstV(i) (asvalue[(i)]->constval.vvec)
593 #define ConstF(i) (asvalue[(i)]->constval.vfloat)
594 #define ConstS(i) (asvalue[(i)]->constval.vstring)
598 compile_error(ctx, "internal error: unhandled operator: %s (%i)", op->op, (int)op->id);
602 if (exprs[0]->expression.vtype == TYPE_VECTOR &&
603 exprs[1]->expression.vtype == TYPE_NOEXPR)
605 if (exprs[1] == (ast_expression*)parser->const_vec[0])
606 out = (ast_expression*)ast_member_new(ctx, exprs[0], 0, NULL);
607 else if (exprs[1] == (ast_expression*)parser->const_vec[1])
608 out = (ast_expression*)ast_member_new(ctx, exprs[0], 1, NULL);
609 else if (exprs[1] == (ast_expression*)parser->const_vec[2])
610 out = (ast_expression*)ast_member_new(ctx, exprs[0], 2, NULL);
612 compile_error(ctx, "access to invalid vector component");
616 else if (exprs[0]->expression.vtype == TYPE_ENTITY) {
617 if (exprs[1]->expression.vtype != TYPE_FIELD) {
618 compile_error(ast_ctx(exprs[1]), "type error: right hand of member-operand should be an entity-field");
621 out = (ast_expression*)ast_entfield_new(ctx, exprs[0], exprs[1]);
623 else if (exprs[0]->expression.vtype == TYPE_VECTOR) {
624 compile_error(ast_ctx(exprs[1]), "vectors cannot be accessed this way");
628 compile_error(ast_ctx(exprs[1]), "type error: member-of operator on something that is not an entity or vector");
634 if (exprs[0]->expression.vtype != TYPE_ARRAY &&
635 !(exprs[0]->expression.vtype == TYPE_FIELD &&
636 exprs[0]->expression.next->expression.vtype == TYPE_ARRAY))
638 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
639 compile_error(ast_ctx(exprs[0]), "cannot index value of type %s", ty1);
642 if (exprs[1]->expression.vtype != TYPE_FLOAT) {
643 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
644 compile_error(ast_ctx(exprs[1]), "index must be of type float, not %s", ty1);
647 out = (ast_expression*)ast_array_index_new(ctx, exprs[0], exprs[1]);
648 if (rotate_entfield_array_index_nodes(&out))
651 /* This is not broken in fteqcc anymore */
652 if (OPTS_OPTION_U32(OPTION_STANDARD) != COMPILER_GMQCC) {
653 /* this error doesn't need to make us bail out */
654 (void)!parsewarning(parser, WARN_EXTENSIONS,
655 "accessing array-field members of an entity without parenthesis\n"
656 " -> this is an extension from -std=gmqcc");
663 if (vec_size(sy->paren) && vec_last(sy->paren) == PAREN_FUNC) {
664 vec_push(sy->out, syexp(ctx, exprs[0]));
665 vec_push(sy->out, syexp(ctx, exprs[1]));
666 vec_last(sy->argc)++;
670 if (!ast_block_add_expr(blocks[0], exprs[1]))
673 blocks[0] = ast_block_new(ctx);
674 if (!ast_block_add_expr(blocks[0], exprs[0]) ||
675 !ast_block_add_expr(blocks[0], exprs[1]))
680 ast_block_set_type(blocks[0], exprs[1]);
682 vec_push(sy->out, syblock(ctx, blocks[0]));
689 switch (exprs[0]->expression.vtype) {
691 if (CanConstFold1(exprs[0]))
692 out = (ast_expression*)parser_const_float(parser, -ConstF(0));
694 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F,
695 (ast_expression*)parser_const_float_0(parser),
699 if (CanConstFold1(exprs[0]))
700 out = (ast_expression*)parser_const_vector_f(parser,
701 -ConstV(0).x, -ConstV(0).y, -ConstV(0).z);
703 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V,
704 (ast_expression*)parser_const_vector_0(parser),
708 compile_error(ctx, "invalid types used in expression: cannot negate type %s",
709 type_name[exprs[0]->expression.vtype]);
715 switch (exprs[0]->expression.vtype) {
717 if (CanConstFold1(exprs[0]))
718 out = (ast_expression*)parser_const_float(parser, !ConstF(0));
720 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
723 if (CanConstFold1(exprs[0]))
724 out = (ast_expression*)parser_const_float(parser,
725 (!ConstV(0).x && !ConstV(0).y && !ConstV(0).z));
727 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[0]);
730 if (CanConstFold1(exprs[0])) {
731 if (OPTS_FLAG(TRUE_EMPTY_STRINGS))
732 out = (ast_expression*)parser_const_float(parser, !ConstS(0));
734 out = (ast_expression*)parser_const_float(parser, !ConstS(0) || !*ConstS(0));
736 if (OPTS_FLAG(TRUE_EMPTY_STRINGS))
737 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
739 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[0]);
742 /* we don't constant-fold NOT for these types */
744 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_ENT, exprs[0]);
747 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_FNC, exprs[0]);
750 compile_error(ctx, "invalid types used in expression: cannot logically negate type %s",
751 type_name[exprs[0]->expression.vtype]);
757 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
758 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
760 compile_error(ctx, "invalid types used in expression: cannot add type %s and %s",
761 type_name[exprs[0]->expression.vtype],
762 type_name[exprs[1]->expression.vtype]);
765 switch (exprs[0]->expression.vtype) {
767 if (CanConstFold(exprs[0], exprs[1]))
769 out = (ast_expression*)parser_const_float(parser, ConstF(0) + ConstF(1));
772 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F, exprs[0], exprs[1]);
775 if (CanConstFold(exprs[0], exprs[1]))
776 out = (ast_expression*)parser_const_vector(parser, vec3_add(ConstV(0), ConstV(1)));
778 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_V, exprs[0], exprs[1]);
781 compile_error(ctx, "invalid types used in expression: cannot add type %s and %s",
782 type_name[exprs[0]->expression.vtype],
783 type_name[exprs[1]->expression.vtype]);
788 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
789 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
791 compile_error(ctx, "invalid types used in expression: cannot subtract type %s from %s",
792 type_name[exprs[1]->expression.vtype],
793 type_name[exprs[0]->expression.vtype]);
796 switch (exprs[0]->expression.vtype) {
798 if (CanConstFold(exprs[0], exprs[1]))
799 out = (ast_expression*)parser_const_float(parser, ConstF(0) - ConstF(1));
801 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F, exprs[0], exprs[1]);
804 if (CanConstFold(exprs[0], exprs[1]))
805 out = (ast_expression*)parser_const_vector(parser, vec3_sub(ConstV(0), ConstV(1)));
807 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V, exprs[0], exprs[1]);
810 compile_error(ctx, "invalid types used in expression: cannot subtract type %s from %s",
811 type_name[exprs[1]->expression.vtype],
812 type_name[exprs[0]->expression.vtype]);
817 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype &&
818 !(exprs[0]->expression.vtype == TYPE_VECTOR &&
819 exprs[1]->expression.vtype == TYPE_FLOAT) &&
820 !(exprs[1]->expression.vtype == TYPE_VECTOR &&
821 exprs[0]->expression.vtype == TYPE_FLOAT)
824 compile_error(ctx, "invalid types used in expression: cannot multiply types %s and %s",
825 type_name[exprs[1]->expression.vtype],
826 type_name[exprs[0]->expression.vtype]);
829 switch (exprs[0]->expression.vtype) {
831 if (exprs[1]->expression.vtype == TYPE_VECTOR)
833 if (CanConstFold(exprs[0], exprs[1]))
834 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(1), ConstF(0)));
836 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_FV, exprs[0], exprs[1]);
840 if (CanConstFold(exprs[0], exprs[1]))
841 out = (ast_expression*)parser_const_float(parser, ConstF(0) * ConstF(1));
843 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, exprs[0], exprs[1]);
847 if (exprs[1]->expression.vtype == TYPE_FLOAT)
849 if (CanConstFold(exprs[0], exprs[1]))
850 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(0), ConstF(1)));
852 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_VF, exprs[0], exprs[1]);
856 if (CanConstFold(exprs[0], exprs[1]))
857 out = (ast_expression*)parser_const_float(parser, vec3_mulvv(ConstV(0), ConstV(1)));
858 else if (OPTS_OPTIMIZATION(OPTIM_VECTOR_COMPONENTS) && CanConstFold1(exprs[0])) {
859 vector vec = ConstV(0);
860 if (!vec.y && !vec.z) { /* 'n 0 0' * v */
861 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
862 out = (ast_expression*)ast_member_new(ctx, exprs[1], 0, NULL);
863 out->expression.node.keep = false;
864 ((ast_member*)out)->rvalue = true;
866 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.x), out);
868 else if (!vec.x && !vec.z) { /* '0 n 0' * v */
869 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
870 out = (ast_expression*)ast_member_new(ctx, exprs[1], 1, NULL);
871 out->expression.node.keep = false;
872 ((ast_member*)out)->rvalue = true;
874 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.y), out);
876 else if (!vec.x && !vec.y) { /* '0 n 0' * v */
877 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
878 out = (ast_expression*)ast_member_new(ctx, exprs[1], 2, NULL);
879 out->expression.node.keep = false;
880 ((ast_member*)out)->rvalue = true;
882 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.z), out);
885 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
887 else if (OPTS_OPTIMIZATION(OPTIM_VECTOR_COMPONENTS) && CanConstFold1(exprs[1])) {
888 vector vec = ConstV(1);
889 if (!vec.y && !vec.z) { /* v * 'n 0 0' */
890 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
891 out = (ast_expression*)ast_member_new(ctx, exprs[0], 0, NULL);
892 out->expression.node.keep = false;
893 ((ast_member*)out)->rvalue = true;
895 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.x));
897 else if (!vec.x && !vec.z) { /* v * '0 n 0' */
898 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
899 out = (ast_expression*)ast_member_new(ctx, exprs[0], 1, NULL);
900 out->expression.node.keep = false;
901 ((ast_member*)out)->rvalue = true;
903 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.y));
905 else if (!vec.x && !vec.y) { /* v * '0 n 0' */
906 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
907 out = (ast_expression*)ast_member_new(ctx, exprs[0], 2, NULL);
908 out->expression.node.keep = false;
909 ((ast_member*)out)->rvalue = true;
911 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.z));
914 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
917 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
921 compile_error(ctx, "invalid types used in expression: cannot multiply types %s and %s",
922 type_name[exprs[1]->expression.vtype],
923 type_name[exprs[0]->expression.vtype]);
928 if (exprs[1]->expression.vtype != TYPE_FLOAT) {
929 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
930 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
931 compile_error(ctx, "invalid types used in expression: cannot divide tyeps %s and %s", ty1, ty2);
934 if (exprs[0]->expression.vtype == TYPE_FLOAT) {
935 if (CanConstFold(exprs[0], exprs[1]))
936 out = (ast_expression*)parser_const_float(parser, ConstF(0) / ConstF(1));
938 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F, exprs[0], exprs[1]);
940 else if (exprs[0]->expression.vtype == TYPE_VECTOR) {
941 if (CanConstFold(exprs[0], exprs[1]))
942 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(0), 1.0/ConstF(1)));
944 if (CanConstFold1(exprs[1])) {
945 out = (ast_expression*)parser_const_float(parser, 1.0 / ConstF(1));
947 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F,
948 (ast_expression*)parser_const_float_1(parser),
952 compile_error(ctx, "internal error: failed to generate division");
955 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_VF, exprs[0], out);
960 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
961 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
962 compile_error(ctx, "invalid types used in expression: cannot divide tyeps %s and %s", ty1, ty2);
968 compile_error(ctx, "qc does not have a modulo operator");
972 if (NotSameType(TYPE_FLOAT)) {
973 compile_error(ctx, "invalid types used in expression: cannot perform bit operations between types %s and %s",
974 type_name[exprs[0]->expression.vtype],
975 type_name[exprs[1]->expression.vtype]);
978 if (CanConstFold(exprs[0], exprs[1]))
979 out = (ast_expression*)parser_const_float(parser,
980 (op->id == opid1('|') ? (float)( ((qcint)ConstF(0)) | ((qcint)ConstF(1)) ) :
981 (float)( ((qcint)ConstF(0)) & ((qcint)ConstF(1)) ) ));
983 out = (ast_expression*)ast_binary_new(ctx,
984 (op->id == opid1('|') ? INSTR_BITOR : INSTR_BITAND),
988 compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-xor via ^");
993 if (CanConstFold(exprs[0], exprs[1]) && ! NotSameType(TYPE_FLOAT)) {
994 if (op->id == opid2('<','<'))
995 out = (ast_expression*)parser_const_float(parser, (double)((int)(ConstF(0)) << (int)(ConstF(1))));
997 out = (ast_expression*)parser_const_float(parser, (double)((int)(ConstF(0)) >> (int)(ConstF(1))));
1000 case opid3('<','<','='):
1001 case opid3('>','>','='):
1002 compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-shifts");
1005 case opid2('|','|'):
1006 generated_op += 1; /* INSTR_OR */
1007 case opid2('&','&'):
1008 generated_op += INSTR_AND;
1009 if (CanConstFold(exprs[0], exprs[1]))
1011 if (OPTS_FLAG(PERL_LOGIC)) {
1012 if (immediate_is_true(ctx, asvalue[0]))
1016 out = (ast_expression*)parser_const_float(parser,
1017 ( (generated_op == INSTR_OR)
1018 ? (immediate_is_true(ctx, asvalue[0]) || immediate_is_true(ctx, asvalue[1]))
1019 : (immediate_is_true(ctx, asvalue[0]) && immediate_is_true(ctx, asvalue[1])) )
1024 if (OPTS_FLAG(PERL_LOGIC) && !ast_compare_type(exprs[0], exprs[1])) {
1025 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1026 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1027 compile_error(ctx, "invalid types for logical operation with -fperl-logic: %s and %s", ty1, ty2);
1030 for (i = 0; i < 2; ++i) {
1031 if (OPTS_FLAG(CORRECT_LOGIC) && exprs[i]->expression.vtype == TYPE_VECTOR) {
1032 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[i]);
1034 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
1036 exprs[i] = out; out = NULL;
1037 if (OPTS_FLAG(PERL_LOGIC)) {
1038 /* here we want to keep the right expressions' type */
1042 else if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && exprs[i]->expression.vtype == TYPE_STRING) {
1043 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[i]);
1045 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
1047 exprs[i] = out; out = NULL;
1048 if (OPTS_FLAG(PERL_LOGIC)) {
1049 /* here we want to keep the right expressions' type */
1054 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
1058 case opid2('?',':'):
1059 if (vec_last(sy->paren) != PAREN_TERNARY2) {
1060 compile_error(ctx, "mismatched parenthesis/ternary");
1064 if (!ast_compare_type(exprs[1], exprs[2])) {
1065 ast_type_to_string(exprs[1], ty1, sizeof(ty1));
1066 ast_type_to_string(exprs[2], ty2, sizeof(ty2));
1067 compile_error(ctx, "operands of ternary expression must have the same type, got %s and %s", ty1, ty2);
1070 if (CanConstFold1(exprs[0]))
1071 out = (immediate_is_true(ctx, asvalue[0]) ? exprs[1] : exprs[2]);
1073 out = (ast_expression*)ast_ternary_new(ctx, exprs[0], exprs[1], exprs[2]);
1076 case opid2('*', '*'):
1077 if (NotSameType(TYPE_FLOAT)) {
1078 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1079 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1080 compile_error(ctx, "invalid types used in exponentiation: %s and %s",
1086 if (CanConstFold(exprs[0], exprs[1])) {
1087 out = (ast_expression*)parser_const_float(parser, powf(ConstF(0), ConstF(1)));
1089 ast_call *gencall = ast_call_new(parser_ctx(parser), parser_builtin_pow(parser));
1090 vec_push(gencall->params, exprs[0]);
1091 vec_push(gencall->params, exprs[1]);
1092 out = (ast_expression*)gencall;
1096 case opid3('<','=','>'): /* -1, 0, or 1 */
1097 if (NotSameType(TYPE_FLOAT)) {
1098 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1099 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1100 compile_error(ctx, "invalid types used in comparision: %s and %s",
1106 if (CanConstFold(exprs[0], exprs[1])) {
1107 if (ConstF(0) < ConstF(1))
1108 out = (ast_expression*)parser_const_float_neg1(parser);
1109 else if (ConstF(0) == ConstF(1))
1110 out = (ast_expression*)parser_const_float_0(parser);
1111 else if (ConstF(0) > ConstF(1))
1112 out = (ast_expression*)parser_const_float_1(parser);
1114 ast_binary *eq = ast_binary_new(ctx, INSTR_EQ_F, exprs[0], exprs[1]);
1116 eq->refs = (ast_binary_ref)false; /* references nothing */
1119 out = (ast_expression*)ast_ternary_new(ctx,
1120 (ast_expression*)ast_binary_new(ctx, INSTR_LT, exprs[0], exprs[1]),
1122 (ast_expression*)parser_const_float_neg1(parser),
1125 (ast_expression*)ast_ternary_new(ctx, (ast_expression*)eq,
1127 (ast_expression*)parser_const_float_0(parser),
1130 (ast_expression*)parser_const_float_1(parser)
1140 generated_op += 1; /* INSTR_GT */
1142 generated_op += 1; /* INSTR_LT */
1143 case opid2('>', '='):
1144 generated_op += 1; /* INSTR_GE */
1145 case opid2('<', '='):
1146 generated_op += INSTR_LE;
1147 if (NotSameType(TYPE_FLOAT)) {
1148 compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
1149 type_name[exprs[0]->expression.vtype],
1150 type_name[exprs[1]->expression.vtype]);
1153 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
1155 case opid2('!', '='):
1156 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) {
1157 compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
1158 type_name[exprs[0]->expression.vtype],
1159 type_name[exprs[1]->expression.vtype]);
1162 out = (ast_expression*)ast_binary_new(ctx, type_ne_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]);
1164 case opid2('=', '='):
1165 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) {
1166 compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
1167 type_name[exprs[0]->expression.vtype],
1168 type_name[exprs[1]->expression.vtype]);
1171 out = (ast_expression*)ast_binary_new(ctx, type_eq_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]);
1175 if (ast_istype(exprs[0], ast_entfield)) {
1176 ast_expression *field = ((ast_entfield*)exprs[0])->field;
1177 if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) &&
1178 exprs[0]->expression.vtype == TYPE_FIELD &&
1179 exprs[0]->expression.next->expression.vtype == TYPE_VECTOR)
1181 assignop = type_storep_instr[TYPE_VECTOR];
1184 assignop = type_storep_instr[exprs[0]->expression.vtype];
1185 if (assignop == VINSTR_END || !ast_compare_type(field->expression.next, exprs[1]))
1187 ast_type_to_string(field->expression.next, ty1, sizeof(ty1));
1188 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1189 if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
1190 field->expression.next->expression.vtype == TYPE_FUNCTION &&
1191 exprs[1]->expression.vtype == TYPE_FUNCTION)
1193 (void)!compile_warning(ctx, WARN_ASSIGN_FUNCTION_TYPES,
1194 "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1197 compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1202 if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) &&
1203 exprs[0]->expression.vtype == TYPE_FIELD &&
1204 exprs[0]->expression.next->expression.vtype == TYPE_VECTOR)
1206 assignop = type_store_instr[TYPE_VECTOR];
1209 assignop = type_store_instr[exprs[0]->expression.vtype];
1212 if (assignop == VINSTR_END) {
1213 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1214 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1215 compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1217 else if (!ast_compare_type(exprs[0], exprs[1]))
1219 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1220 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1221 if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
1222 exprs[0]->expression.vtype == TYPE_FUNCTION &&
1223 exprs[1]->expression.vtype == TYPE_FUNCTION)
1225 (void)!compile_warning(ctx, WARN_ASSIGN_FUNCTION_TYPES,
1226 "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1229 compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1232 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1233 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1235 out = (ast_expression*)ast_store_new(ctx, assignop, exprs[0], exprs[1]);
1237 case opid3('+','+','P'):
1238 case opid3('-','-','P'):
1240 if (exprs[0]->expression.vtype != TYPE_FLOAT) {
1241 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1242 compile_error(ast_ctx(exprs[0]), "invalid type for prefix increment: %s", ty1);
1245 if (op->id == opid3('+','+','P'))
1246 addop = INSTR_ADD_F;
1248 addop = INSTR_SUB_F;
1249 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1250 compile_error(ast_ctx(exprs[0]), "assignment to constant `%s`", asvalue[0]->name);
1252 if (ast_istype(exprs[0], ast_entfield)) {
1253 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
1255 (ast_expression*)parser_const_float_1(parser));
1257 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
1259 (ast_expression*)parser_const_float_1(parser));
1262 case opid3('S','+','+'):
1263 case opid3('S','-','-'):
1265 if (exprs[0]->expression.vtype != TYPE_FLOAT) {
1266 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1267 compile_error(ast_ctx(exprs[0]), "invalid type for suffix increment: %s", ty1);
1270 if (op->id == opid3('S','+','+')) {
1271 addop = INSTR_ADD_F;
1272 subop = INSTR_SUB_F;
1274 addop = INSTR_SUB_F;
1275 subop = INSTR_ADD_F;
1277 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1278 compile_error(ast_ctx(exprs[0]), "assignment to constant `%s`", asvalue[0]->name);
1280 if (ast_istype(exprs[0], ast_entfield)) {
1281 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
1283 (ast_expression*)parser_const_float_1(parser));
1285 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
1287 (ast_expression*)parser_const_float_1(parser));
1291 out = (ast_expression*)ast_binary_new(ctx, subop,
1293 (ast_expression*)parser_const_float_1(parser));
1295 case opid2('+','='):
1296 case opid2('-','='):
1297 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
1298 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
1300 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1301 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1302 compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
1306 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1307 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1309 if (ast_istype(exprs[0], ast_entfield))
1310 assignop = type_storep_instr[exprs[0]->expression.vtype];
1312 assignop = type_store_instr[exprs[0]->expression.vtype];
1313 switch (exprs[0]->expression.vtype) {
1315 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1316 (op->id == opid2('+','=') ? INSTR_ADD_F : INSTR_SUB_F),
1317 exprs[0], exprs[1]);
1320 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1321 (op->id == opid2('+','=') ? INSTR_ADD_V : INSTR_SUB_V),
1322 exprs[0], exprs[1]);
1325 compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
1326 type_name[exprs[0]->expression.vtype],
1327 type_name[exprs[1]->expression.vtype]);
1331 case opid2('*','='):
1332 case opid2('/','='):
1333 if (exprs[1]->expression.vtype != TYPE_FLOAT ||
1334 !(exprs[0]->expression.vtype == TYPE_FLOAT ||
1335 exprs[0]->expression.vtype == TYPE_VECTOR))
1337 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1338 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1339 compile_error(ctx, "invalid types used in expression: %s and %s",
1343 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1344 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1346 if (ast_istype(exprs[0], ast_entfield))
1347 assignop = type_storep_instr[exprs[0]->expression.vtype];
1349 assignop = type_store_instr[exprs[0]->expression.vtype];
1350 switch (exprs[0]->expression.vtype) {
1352 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1353 (op->id == opid2('*','=') ? INSTR_MUL_F : INSTR_DIV_F),
1354 exprs[0], exprs[1]);
1357 if (op->id == opid2('*','=')) {
1358 out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
1359 exprs[0], exprs[1]);
1361 /* there's no DIV_VF */
1362 if (CanConstFold1(exprs[1])) {
1363 out = (ast_expression*)parser_const_float(parser, 1.0 / ConstF(1));
1365 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F,
1366 (ast_expression*)parser_const_float_1(parser),
1370 compile_error(ctx, "internal error: failed to generate division");
1373 out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
1378 compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
1379 type_name[exprs[0]->expression.vtype],
1380 type_name[exprs[1]->expression.vtype]);
1384 case opid2('&','='):
1385 case opid2('|','='):
1386 if (NotSameType(TYPE_FLOAT)) {
1387 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1388 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1389 compile_error(ctx, "invalid types used in expression: %s and %s",
1393 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1394 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1396 if (ast_istype(exprs[0], ast_entfield))
1397 assignop = type_storep_instr[exprs[0]->expression.vtype];
1399 assignop = type_store_instr[exprs[0]->expression.vtype];
1400 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1401 (op->id == opid2('&','=') ? INSTR_BITAND : INSTR_BITOR),
1402 exprs[0], exprs[1]);
1404 case opid3('&','~','='):
1405 /* This is like: a &= ~(b);
1406 * But QC has no bitwise-not, so we implement it as
1409 if (NotSameType(TYPE_FLOAT)) {
1410 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1411 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1412 compile_error(ctx, "invalid types used in expression: %s and %s",
1416 if (ast_istype(exprs[0], ast_entfield))
1417 assignop = type_storep_instr[exprs[0]->expression.vtype];
1419 assignop = type_store_instr[exprs[0]->expression.vtype];
1420 out = (ast_expression*)ast_binary_new(ctx, INSTR_BITAND, exprs[0], exprs[1]);
1423 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1424 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1426 asbinstore = ast_binstore_new(ctx, assignop, INSTR_SUB_F, exprs[0], out);
1427 asbinstore->keep_dest = true;
1428 out = (ast_expression*)asbinstore;
1431 case opid2('~', 'P'):
1432 if (exprs[0]->expression.vtype != TYPE_FLOAT) {
1433 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1434 compile_error(ast_ctx(exprs[0]), "invalid type for bit not: %s", ty1);
1438 if(CanConstFold1(exprs[0]))
1439 out = (ast_expression*)parser_const_float(parser, ~(qcint)ConstF(0));
1441 out = (ast_expression*)
1442 ast_binary_new(ctx, INSTR_SUB_F, (ast_expression*)parser_const_float_neg1(parser), exprs[0]);
1448 compile_error(ctx, "failed to apply operator %s", op->op);
1452 vec_push(sy->out, syexp(ctx, out));
1456 static bool parser_close_call(parser_t *parser, shunt *sy)
1458 /* was a function call */
1459 ast_expression *fun;
1460 ast_value *funval = NULL;
1464 size_t paramcount, i;
1466 fid = vec_last(sy->ops).off;
1467 vec_shrinkby(sy->ops, 1);
1469 /* out[fid] is the function
1470 * everything above is parameters...
1472 if (!vec_size(sy->argc)) {
1473 parseerror(parser, "internal error: no argument counter available");
1477 paramcount = vec_last(sy->argc);
1480 if (vec_size(sy->out) < fid) {
1481 parseerror(parser, "internal error: broken function call%lu < %lu+%lu\n",
1482 (unsigned long)vec_size(sy->out),
1484 (unsigned long)paramcount);
1488 fun = sy->out[fid].out;
1490 if (fun == intrinsic_debug_typestring) {
1492 if (fid+2 != vec_size(sy->out) ||
1493 vec_last(sy->out).block)
1495 parseerror(parser, "intrinsic __builtin_debug_typestring requires exactly 1 parameter");
1498 ast_type_to_string(vec_last(sy->out).out, ty, sizeof(ty));
1499 ast_unref(vec_last(sy->out).out);
1500 sy->out[fid] = syexp(ast_ctx(vec_last(sy->out).out),
1501 (ast_expression*)parser_const_string(parser, ty, false));
1502 vec_shrinkby(sy->out, 1);
1506 call = ast_call_new(sy->ops[vec_size(sy->ops)].ctx, fun);
1510 if (fid+1 < vec_size(sy->out))
1513 if (fid+1 + paramcount != vec_size(sy->out)) {
1514 parseerror(parser, "internal error: parameter count mismatch: (%lu+1+%lu), %lu",
1515 (unsigned long)fid, (unsigned long)paramcount, (unsigned long)vec_size(sy->out));
1519 for (i = 0; i < paramcount; ++i)
1520 vec_push(call->params, sy->out[fid+1 + i].out);
1521 vec_shrinkby(sy->out, paramcount);
1522 (void)!ast_call_check_types(call);
1523 if (parser->max_param_count < paramcount)
1524 parser->max_param_count = paramcount;
1526 if (ast_istype(fun, ast_value)) {
1527 funval = (ast_value*)fun;
1528 if ((fun->expression.flags & AST_FLAG_VARIADIC) &&
1529 !(/*funval->cvq == CV_CONST && */ funval->hasvalue && funval->constval.vfunc->builtin))
1531 call->va_count = (ast_expression*)parser_const_float(parser, (double)paramcount);
1535 /* overwrite fid, the function, with a call */
1536 sy->out[fid] = syexp(call->expression.node.context, (ast_expression*)call);
1538 if (fun->expression.vtype != TYPE_FUNCTION) {
1539 parseerror(parser, "not a function (%s)", type_name[fun->expression.vtype]);
1543 if (!fun->expression.next) {
1544 parseerror(parser, "could not determine function return type");
1547 ast_value *fval = (ast_istype(fun, ast_value) ? ((ast_value*)fun) : NULL);
1549 if (fun->expression.flags & AST_FLAG_DEPRECATED) {
1551 return !parsewarning(parser, WARN_DEPRECATED,
1552 "call to function (which is marked deprecated)\n",
1553 "-> it has been declared here: %s:%i",
1554 ast_ctx(fun).file, ast_ctx(fun).line);
1557 return !parsewarning(parser, WARN_DEPRECATED,
1558 "call to `%s` (which is marked deprecated)\n"
1559 "-> `%s` declared here: %s:%i",
1560 fval->name, fval->name, ast_ctx(fun).file, ast_ctx(fun).line);
1562 return !parsewarning(parser, WARN_DEPRECATED,
1563 "call to `%s` (deprecated: %s)\n"
1564 "-> `%s` declared here: %s:%i",
1565 fval->name, fval->desc, fval->name, ast_ctx(fun).file,
1569 if (vec_size(fun->expression.params) != paramcount &&
1570 !((fun->expression.flags & AST_FLAG_VARIADIC) &&
1571 vec_size(fun->expression.params) < paramcount))
1573 const char *fewmany = (vec_size(fun->expression.params) > paramcount) ? "few" : "many";
1575 return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT,
1576 "too %s parameters for call to %s: expected %i, got %i\n"
1577 " -> `%s` has been declared here: %s:%i",
1578 fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount,
1579 fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
1581 return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT,
1582 "too %s parameters for function call: expected %i, got %i\n"
1583 " -> it has been declared here: %s:%i",
1584 fewmany, (int)vec_size(fun->expression.params), (int)paramcount,
1585 ast_ctx(fun).file, (int)ast_ctx(fun).line);
1592 static bool parser_close_paren(parser_t *parser, shunt *sy)
1594 if (!vec_size(sy->ops)) {
1595 parseerror(parser, "unmatched closing paren");
1599 while (vec_size(sy->ops)) {
1600 if (vec_last(sy->ops).isparen) {
1601 if (vec_last(sy->paren) == PAREN_FUNC) {
1603 if (!parser_close_call(parser, sy))
1607 if (vec_last(sy->paren) == PAREN_EXPR) {
1609 if (!vec_size(sy->out)) {
1610 compile_error(vec_last(sy->ops).ctx, "empty paren expression");
1611 vec_shrinkby(sy->ops, 1);
1614 vec_shrinkby(sy->ops, 1);
1617 if (vec_last(sy->paren) == PAREN_INDEX) {
1619 /* pop off the parenthesis */
1620 vec_shrinkby(sy->ops, 1);
1621 /* then apply the index operator */
1622 if (!parser_sy_apply_operator(parser, sy))
1626 if (vec_last(sy->paren) == PAREN_TERNARY1) {
1627 vec_last(sy->paren) = PAREN_TERNARY2;
1628 /* pop off the parenthesis */
1629 vec_shrinkby(sy->ops, 1);
1632 compile_error(vec_last(sy->ops).ctx, "invalid parenthesis");
1635 if (!parser_sy_apply_operator(parser, sy))
1641 static void parser_reclassify_token(parser_t *parser)
1644 for (i = 0; i < operator_count; ++i) {
1645 if (!strcmp(parser_tokval(parser), operators[i].op)) {
1646 parser->tok = TOKEN_OPERATOR;
1652 static ast_expression* parse_vararg_do(parser_t *parser)
1654 ast_expression *idx, *out;
1656 ast_value *funtype = parser->function->vtype;
1658 lex_ctx ctx = parser_ctx(parser);
1660 if (!parser_next(parser) || parser->tok != '(') {
1661 parseerror(parser, "expected parameter index and type in parenthesis");
1664 if (!parser_next(parser)) {
1665 parseerror(parser, "error parsing parameter index");
1669 idx = parse_expression_leave(parser, true, false, false);
1673 if (parser->tok != ',') {
1675 parseerror(parser, "expected comma after parameter index");
1679 if (!parser_next(parser) || (parser->tok != TOKEN_IDENT && parser->tok != TOKEN_TYPENAME)) {
1681 parseerror(parser, "expected typename for vararg");
1685 typevar = parse_typename(parser, NULL, NULL);
1691 if (parser->tok != ')') {
1693 ast_delete(typevar);
1694 parseerror(parser, "expected closing paren");
1699 if (!parser_next(parser)) {
1701 ast_delete(typevar);
1702 parseerror(parser, "parse error after vararg");
1707 if (!parser->function->varargs) {
1709 ast_delete(typevar);
1710 parseerror(parser, "function has no variable argument list");
1714 if (funtype->expression.varparam &&
1715 !ast_compare_type((ast_expression*)typevar, (ast_expression*)funtype->expression.varparam))
1719 ast_type_to_string((ast_expression*)typevar, ty1, sizeof(ty1));
1720 ast_type_to_string((ast_expression*)funtype->expression.varparam, ty2, sizeof(ty2));
1721 compile_error(ast_ctx(typevar),
1722 "function was declared to take varargs of type `%s`, requested type is: %s",
1726 out = (ast_expression*)ast_array_index_new(ctx, (ast_expression*)(parser->function->varargs), idx);
1727 ast_type_adopt(out, typevar);
1728 ast_delete(typevar);
1732 static ast_expression* parse_vararg(parser_t *parser)
1734 bool old_noops = parser->lex->flags.noops;
1736 ast_expression *out;
1738 parser->lex->flags.noops = true;
1739 out = parse_vararg_do(parser);
1741 parser->lex->flags.noops = old_noops;
1745 static bool parse_sya_operand(parser_t *parser, shunt *sy, bool with_labels)
1747 if (OPTS_FLAG(TRANSLATABLE_STRINGS) &&
1748 parser->tok == TOKEN_IDENT &&
1749 !strcmp(parser_tokval(parser), "_"))
1751 /* a translatable string */
1754 parser->lex->flags.noops = true;
1755 if (!parser_next(parser) || parser->tok != '(') {
1756 parseerror(parser, "use _(\"string\") to create a translatable string constant");
1759 parser->lex->flags.noops = false;
1760 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
1761 parseerror(parser, "expected a constant string in translatable-string extension");
1764 val = parser_const_string(parser, parser_tokval(parser), true);
1767 vec_push(sy->out, syexp(parser_ctx(parser), (ast_expression*)val));
1769 if (!parser_next(parser) || parser->tok != ')') {
1770 parseerror(parser, "expected closing paren after translatable string");
1775 else if (parser->tok == TOKEN_DOTS)
1778 if (!OPTS_FLAG(VARIADIC_ARGS)) {
1779 parseerror(parser, "cannot access varargs (try -fvariadic-args)");
1782 va = parse_vararg(parser);
1785 vec_push(sy->out, syexp(parser_ctx(parser), va));
1788 else if (parser->tok == TOKEN_FLOATCONST) {
1790 val = parser_const_float(parser, (parser_token(parser)->constval.f));
1793 vec_push(sy->out, syexp(parser_ctx(parser), (ast_expression*)val));
1796 else if (parser->tok == TOKEN_INTCONST || parser->tok == TOKEN_CHARCONST) {
1798 val = parser_const_float(parser, (double)(parser_token(parser)->constval.i));
1801 vec_push(sy->out, syexp(parser_ctx(parser), (ast_expression*)val));
1804 else if (parser->tok == TOKEN_STRINGCONST) {
1806 val = parser_const_string(parser, parser_tokval(parser), false);
1809 vec_push(sy->out, syexp(parser_ctx(parser), (ast_expression*)val));
1812 else if (parser->tok == TOKEN_VECTORCONST) {
1814 val = parser_const_vector(parser, parser_token(parser)->constval.v);
1817 vec_push(sy->out, syexp(parser_ctx(parser), (ast_expression*)val));
1820 else if (parser->tok == TOKEN_IDENT)
1822 const char *ctoken = parser_tokval(parser);
1823 ast_expression *prev = vec_size(sy->out) ? vec_last(sy->out).out : NULL;
1824 ast_expression *var;
1825 /* a_vector.{x,y,z} */
1826 if (!vec_size(sy->ops) ||
1827 !vec_last(sy->ops).etype ||
1828 operators[vec_last(sy->ops).etype-1].id != opid1('.') ||
1829 (prev >= intrinsic_debug_typestring &&
1830 prev <= intrinsic_debug_typestring))
1832 /* When adding more intrinsics, fix the above condition */
1835 if (prev && prev->expression.vtype == TYPE_VECTOR && ctoken[0] >= 'x' && ctoken[0] <= 'z' && !ctoken[1])
1837 var = (ast_expression*)parser->const_vec[ctoken[0]-'x'];
1839 var = parser_find_var(parser, parser_tokval(parser));
1841 var = parser_find_field(parser, parser_tokval(parser));
1843 if (!var && with_labels) {
1844 var = (ast_expression*)parser_find_label(parser, parser_tokval(parser));
1846 ast_label *lbl = ast_label_new(parser_ctx(parser), parser_tokval(parser), true);
1847 var = (ast_expression*)lbl;
1848 vec_push(parser->labels, lbl);
1853 if (!strcmp(parser_tokval(parser), "__builtin_debug_typestring")) {
1854 var = (ast_expression*)intrinsic_debug_typestring;
1856 if (!strcmp(parser_tokval(parser), "__builtin_pow"))
1857 var = parser_builtin_pow(parser);
1860 char *correct = NULL;
1864 * sometimes people use preprocessing predefs without enabling them
1865 * i've done this thousands of times already myself. Lets check for
1866 * it in the predef table. And diagnose it better :)
1868 if (!OPTS_FLAG(FTEPP_PREDEFS)) {
1869 for (i = 0; i < sizeof(ftepp_predefs)/sizeof(*ftepp_predefs); i++) {
1870 if (!strcmp(ftepp_predefs[i].name, parser_tokval(parser))) {
1871 parseerror(parser, "unexpected ident: %s (use -fftepp-predef to enable pre-defined macros)", parser_tokval(parser));
1878 * TODO: determine the best score for the identifier: be it
1879 * a variable, a field.
1881 * We should also consider adding correction tables for
1882 * other things as well.
1884 if (OPTS_OPTION_BOOL(OPTION_CORRECTION)) {
1886 correct_init(&corr);
1888 for (i = 0; i < vec_size(parser->correct_variables); i++) {
1889 correct = correct_str(&corr, parser->correct_variables[i], parser_tokval(parser));
1890 if (strcmp(correct, parser_tokval(parser))) {
1892 } else if (correct) {
1897 correct_free(&corr);
1900 parseerror(parser, "unexpected ident: %s (did you mean %s?)", parser_tokval(parser), correct);
1905 parseerror(parser, "unexpected ident: %s", parser_tokval(parser));
1911 if (ast_istype(var, ast_value)) {
1912 ((ast_value*)var)->uses++;
1914 else if (ast_istype(var, ast_member)) {
1915 ast_member *mem = (ast_member*)var;
1916 if (ast_istype(mem->owner, ast_value))
1917 ((ast_value*)(mem->owner))->uses++;
1920 vec_push(sy->out, syexp(parser_ctx(parser), var));
1923 parseerror(parser, "unexpected token `%s`", parser_tokval(parser));
1927 static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels)
1929 ast_expression *expr = NULL;
1932 bool wantop = false;
1933 /* only warn once about an assignment in a truth value because the current code
1934 * would trigger twice on: if(a = b && ...), once for the if-truth-value, once for the && part
1936 bool warn_truthvalue = true;
1938 /* count the parens because an if starts with one, so the
1939 * end of a condition is an unmatched closing paren
1943 memset(&sy, 0, sizeof(sy));
1945 parser->lex->flags.noops = false;
1947 parser_reclassify_token(parser);
1951 if (parser->tok == TOKEN_TYPENAME) {
1952 parseerror(parser, "unexpected typename");
1956 if (parser->tok == TOKEN_OPERATOR)
1958 /* classify the operator */
1959 const oper_info *op;
1960 const oper_info *olast = NULL;
1962 for (o = 0; o < operator_count; ++o) {
1963 if (((!(operators[o].flags & OP_PREFIX) == !!wantop)) &&
1964 /* !(operators[o].flags & OP_SUFFIX) && / * remove this */
1965 !strcmp(parser_tokval(parser), operators[o].op))
1970 if (o == operator_count) {
1971 compile_error(parser_ctx(parser), "unknown operator: %s", parser_tokval(parser));
1974 /* found an operator */
1977 /* when declaring variables, a comma starts a new variable */
1978 if (op->id == opid1(',') && !vec_size(sy.paren) && stopatcomma) {
1979 /* fixup the token */
1984 /* a colon without a pervious question mark cannot be a ternary */
1985 if (!ternaries && op->id == opid2(':','?')) {
1990 if (op->id == opid1(',')) {
1991 if (vec_size(sy.paren) && vec_last(sy.paren) == PAREN_TERNARY2) {
1992 (void)!parsewarning(parser, WARN_TERNARY_PRECEDENCE, "suggesting parenthesis around ternary expression");
1996 if (vec_size(sy.ops) && !vec_last(sy.ops).isparen)
1997 olast = &operators[vec_last(sy.ops).etype-1];
1999 #define IsAssignOp(x) (\
2000 (x) == opid1('=') || \
2001 (x) == opid2('+','=') || \
2002 (x) == opid2('-','=') || \
2003 (x) == opid2('*','=') || \
2004 (x) == opid2('/','=') || \
2005 (x) == opid2('%','=') || \
2006 (x) == opid2('&','=') || \
2007 (x) == opid2('|','=') || \
2008 (x) == opid3('&','~','=') \
2010 if (warn_truthvalue) {
2011 if ( (olast && IsAssignOp(olast->id) && (op->id == opid2('&','&') || op->id == opid2('|','|'))) ||
2012 (olast && IsAssignOp(op->id) && (olast->id == opid2('&','&') || olast->id == opid2('|','|'))) ||
2013 (truthvalue && !vec_size(sy.paren) && IsAssignOp(op->id))
2016 (void)!parsewarning(parser, WARN_PARENTHESIS, "suggesting parenthesis around assignment used as truth value");
2017 warn_truthvalue = false;
2022 (op->prec < olast->prec) ||
2023 (op->assoc == ASSOC_LEFT && op->prec <= olast->prec) ) )
2025 if (!parser_sy_apply_operator(parser, &sy))
2027 if (vec_size(sy.ops) && !vec_last(sy.ops).isparen)
2028 olast = &operators[vec_last(sy.ops).etype-1];
2033 if (op->id == opid1('(')) {
2035 size_t sycount = vec_size(sy.out);
2036 /* we expected an operator, this is the function-call operator */
2037 vec_push(sy.paren, PAREN_FUNC);
2038 vec_push(sy.ops, syparen(parser_ctx(parser), sycount-1));
2039 vec_push(sy.argc, 0);
2041 vec_push(sy.paren, PAREN_EXPR);
2042 vec_push(sy.ops, syparen(parser_ctx(parser), 0));
2045 } else if (op->id == opid1('[')) {
2047 parseerror(parser, "unexpected array subscript");
2050 vec_push(sy.paren, PAREN_INDEX);
2051 /* push both the operator and the paren, this makes life easier */
2052 vec_push(sy.ops, syop(parser_ctx(parser), op));
2053 vec_push(sy.ops, syparen(parser_ctx(parser), 0));
2055 } else if (op->id == opid2('?',':')) {
2056 vec_push(sy.ops, syop(parser_ctx(parser), op));
2057 vec_push(sy.ops, syparen(parser_ctx(parser), 0));
2060 vec_push(sy.paren, PAREN_TERNARY1);
2061 } else if (op->id == opid2(':','?')) {
2062 if (!vec_size(sy.paren)) {
2063 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
2066 if (vec_last(sy.paren) != PAREN_TERNARY1) {
2067 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
2070 if (!parser_close_paren(parser, &sy))
2072 vec_push(sy.ops, syop(parser_ctx(parser), op));
2076 vec_push(sy.ops, syop(parser_ctx(parser), op));
2077 wantop = !!(op->flags & OP_SUFFIX);
2080 else if (parser->tok == ')') {
2081 while (vec_size(sy.paren) && vec_last(sy.paren) == PAREN_TERNARY2) {
2082 if (!parser_sy_apply_operator(parser, &sy))
2085 if (!vec_size(sy.paren))
2088 if (vec_last(sy.paren) == PAREN_TERNARY1) {
2089 parseerror(parser, "mismatched parentheses (closing paren in ternary expression?)");
2092 if (!parser_close_paren(parser, &sy))
2095 /* must be a function call without parameters */
2096 if (vec_last(sy.paren) != PAREN_FUNC) {
2097 parseerror(parser, "closing paren in invalid position");
2100 if (!parser_close_paren(parser, &sy))
2105 else if (parser->tok == '(') {
2106 parseerror(parser, "internal error: '(' should be classified as operator");
2109 else if (parser->tok == '[') {
2110 parseerror(parser, "internal error: '[' should be classified as operator");
2113 else if (parser->tok == ']') {
2114 while (vec_size(sy.paren) && vec_last(sy.paren) == PAREN_TERNARY2) {
2115 if (!parser_sy_apply_operator(parser, &sy))
2118 if (!vec_size(sy.paren))
2120 if (vec_last(sy.paren) != PAREN_INDEX) {
2121 parseerror(parser, "mismatched parentheses, unexpected ']'");
2124 if (!parser_close_paren(parser, &sy))
2129 if (!parse_sya_operand(parser, &sy, with_labels))
2132 if (vec_size(sy.paren) && vec_last(sy.ops).isparen && vec_last(sy.paren) == PAREN_FUNC)
2133 vec_last(sy.argc)++;
2138 parseerror(parser, "expected operator or end of statement");
2142 if (!parser_next(parser)) {
2145 if (parser->tok == ';' ||
2146 ((!vec_size(sy.paren) || (vec_size(sy.paren) == 1 && vec_last(sy.paren) == PAREN_TERNARY2)) &&
2147 (parser->tok == ']' || parser->tok == ')' || parser->tok == '}')))
2153 while (vec_size(sy.ops)) {
2154 if (!parser_sy_apply_operator(parser, &sy))
2158 parser->lex->flags.noops = true;
2159 if (!vec_size(sy.out)) {
2160 parseerror(parser, "empty expression");
2163 expr = sy.out[0].out;
2166 if (vec_size(sy.paren)) {
2167 parseerror(parser, "internal error: vec_size(sy.paren) = %lu", (unsigned long)vec_size(sy.paren));
2175 parser->lex->flags.noops = true;
2176 for (i = 0; i < vec_size(sy.out); ++i) {
2178 ast_unref(sy.out[i].out);
2187 static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels)
2189 ast_expression *e = parse_expression_leave(parser, stopatcomma, false, with_labels);
2192 if (parser->tok != ';') {
2193 parseerror(parser, "semicolon expected after expression");
2197 if (!parser_next(parser)) {
2204 static void parser_enterblock(parser_t *parser)
2206 vec_push(parser->variables, util_htnew(PARSER_HT_SIZE));
2207 vec_push(parser->_blocklocals, vec_size(parser->_locals));
2208 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
2209 vec_push(parser->_blocktypedefs, vec_size(parser->_typedefs));
2210 vec_push(parser->_block_ctx, parser_ctx(parser));
2213 vec_push(parser->correct_variables, correct_trie_new());
2214 vec_push(parser->correct_variables_score, NULL);
2217 static bool parser_leaveblock(parser_t *parser)
2220 size_t locals, typedefs;
2222 if (vec_size(parser->variables) <= PARSER_HT_LOCALS) {
2223 parseerror(parser, "internal error: parser_leaveblock with no block");
2227 util_htdel(vec_last(parser->variables));
2228 correct_del(vec_last(parser->correct_variables), vec_last(parser->correct_variables_score));
2230 vec_pop(parser->variables);
2231 vec_pop(parser->correct_variables);
2232 vec_pop(parser->correct_variables_score);
2233 if (!vec_size(parser->_blocklocals)) {
2234 parseerror(parser, "internal error: parser_leaveblock with no block (2)");
2238 locals = vec_last(parser->_blocklocals);
2239 vec_pop(parser->_blocklocals);
2240 while (vec_size(parser->_locals) != locals) {
2241 ast_expression *e = vec_last(parser->_locals);
2242 ast_value *v = (ast_value*)e;
2243 vec_pop(parser->_locals);
2244 if (ast_istype(e, ast_value) && !v->uses) {
2245 if (compile_warning(ast_ctx(v), WARN_UNUSED_VARIABLE, "unused variable: `%s`", v->name))
2250 typedefs = vec_last(parser->_blocktypedefs);
2251 while (vec_size(parser->_typedefs) != typedefs) {
2252 ast_delete(vec_last(parser->_typedefs));
2253 vec_pop(parser->_typedefs);
2255 util_htdel(vec_last(parser->typedefs));
2256 vec_pop(parser->typedefs);
2258 vec_pop(parser->_block_ctx);
2263 static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e)
2265 vec_push(parser->_locals, e);
2266 util_htset(vec_last(parser->variables), name, (void*)e);
2270 vec_last(parser->correct_variables),
2271 &vec_last(parser->correct_variables_score),
2276 static void parser_addglobal(parser_t *parser, const char *name, ast_expression *e)
2278 vec_push(parser->globals, e);
2279 util_htset(parser->htglobals, name, e);
2283 parser->correct_variables[0],
2284 &parser->correct_variables_score[0],
2289 static ast_expression* process_condition(parser_t *parser, ast_expression *cond, bool *_ifnot)
2293 ast_expression *prev;
2295 if (cond->expression.vtype == TYPE_VOID || cond->expression.vtype >= TYPE_VARIANT) {
2297 ast_type_to_string(cond, ty, sizeof(ty));
2298 compile_error(ast_ctx(cond), "invalid type for if() condition: %s", ty);
2301 if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && cond->expression.vtype == TYPE_STRING)
2304 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_S, cond);
2307 parseerror(parser, "internal error: failed to process condition");
2312 else if (OPTS_FLAG(CORRECT_LOGIC) && cond->expression.vtype == TYPE_VECTOR)
2314 /* vector types need to be cast to true booleans */
2315 ast_binary *bin = (ast_binary*)cond;
2316 if (!OPTS_FLAG(PERL_LOGIC) || !ast_istype(cond, ast_binary) || !(bin->op == INSTR_AND || bin->op == INSTR_OR))
2318 /* in perl-logic, AND and OR take care of the -fcorrect-logic */
2320 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_V, cond);
2323 parseerror(parser, "internal error: failed to process condition");
2330 unary = (ast_unary*)cond;
2331 while (ast_istype(cond, ast_unary) && unary->op == INSTR_NOT_F)
2333 cond = unary->operand;
2334 unary->operand = NULL;
2337 unary = (ast_unary*)cond;
2341 parseerror(parser, "internal error: failed to process condition");
2343 if (ifnot) *_ifnot = !*_ifnot;
2347 static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out)
2350 ast_expression *cond, *ontrue = NULL, *onfalse = NULL;
2353 lex_ctx ctx = parser_ctx(parser);
2355 (void)block; /* not touching */
2357 /* skip the 'if', parse an optional 'not' and check for an opening paren */
2358 if (!parser_next(parser)) {
2359 parseerror(parser, "expected condition or 'not'");
2362 if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "not")) {
2364 if (!parser_next(parser)) {
2365 parseerror(parser, "expected condition in parenthesis");
2369 if (parser->tok != '(') {
2370 parseerror(parser, "expected 'if' condition in parenthesis");
2373 /* parse into the expression */
2374 if (!parser_next(parser)) {
2375 parseerror(parser, "expected 'if' condition after opening paren");
2378 /* parse the condition */
2379 cond = parse_expression_leave(parser, false, true, false);
2383 if (parser->tok != ')') {
2384 parseerror(parser, "expected closing paren after 'if' condition");
2388 /* parse into the 'then' branch */
2389 if (!parser_next(parser)) {
2390 parseerror(parser, "expected statement for on-true branch of 'if'");
2394 if (!parse_statement_or_block(parser, &ontrue)) {
2399 ontrue = (ast_expression*)ast_block_new(parser_ctx(parser));
2400 /* check for an else */
2401 if (!strcmp(parser_tokval(parser), "else")) {
2402 /* parse into the 'else' branch */
2403 if (!parser_next(parser)) {
2404 parseerror(parser, "expected on-false branch after 'else'");
2409 if (!parse_statement_or_block(parser, &onfalse)) {
2416 cond = process_condition(parser, cond, &ifnot);
2418 if (ontrue) ast_delete(ontrue);
2419 if (onfalse) ast_delete(onfalse);
2424 ifthen = ast_ifthen_new(ctx, cond, onfalse, ontrue);
2426 ifthen = ast_ifthen_new(ctx, cond, ontrue, onfalse);
2427 *out = (ast_expression*)ifthen;
2431 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out);
2432 static bool parse_while(parser_t *parser, ast_block *block, ast_expression **out)
2437 /* skip the 'while' and get the body */
2438 if (!parser_next(parser)) {
2439 if (OPTS_FLAG(LOOP_LABELS))
2440 parseerror(parser, "expected loop label or 'while' condition in parenthesis");
2442 parseerror(parser, "expected 'while' condition in parenthesis");
2446 if (parser->tok == ':') {
2447 if (!OPTS_FLAG(LOOP_LABELS))
2448 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2449 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2450 parseerror(parser, "expected loop label");
2453 label = util_strdup(parser_tokval(parser));
2454 if (!parser_next(parser)) {
2456 parseerror(parser, "expected 'while' condition in parenthesis");
2461 if (parser->tok != '(') {
2462 parseerror(parser, "expected 'while' condition in parenthesis");
2466 vec_push(parser->breaks, label);
2467 vec_push(parser->continues, label);
2469 rv = parse_while_go(parser, block, out);
2472 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2473 parseerror(parser, "internal error: label stack corrupted");
2479 vec_pop(parser->breaks);
2480 vec_pop(parser->continues);
2485 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out)
2488 ast_expression *cond, *ontrue;
2492 lex_ctx ctx = parser_ctx(parser);
2494 (void)block; /* not touching */
2496 /* parse into the expression */
2497 if (!parser_next(parser)) {
2498 parseerror(parser, "expected 'while' condition after opening paren");
2501 /* parse the condition */
2502 cond = parse_expression_leave(parser, false, true, false);
2506 if (parser->tok != ')') {
2507 parseerror(parser, "expected closing paren after 'while' condition");
2511 /* parse into the 'then' branch */
2512 if (!parser_next(parser)) {
2513 parseerror(parser, "expected while-loop body");
2517 if (!parse_statement_or_block(parser, &ontrue)) {
2522 cond = process_condition(parser, cond, &ifnot);
2527 aloop = ast_loop_new(ctx, NULL, cond, ifnot, NULL, false, NULL, ontrue);
2528 *out = (ast_expression*)aloop;
2532 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out);
2533 static bool parse_dowhile(parser_t *parser, ast_block *block, ast_expression **out)
2538 /* skip the 'do' and get the body */
2539 if (!parser_next(parser)) {
2540 if (OPTS_FLAG(LOOP_LABELS))
2541 parseerror(parser, "expected loop label or body");
2543 parseerror(parser, "expected loop body");
2547 if (parser->tok == ':') {
2548 if (!OPTS_FLAG(LOOP_LABELS))
2549 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2550 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2551 parseerror(parser, "expected loop label");
2554 label = util_strdup(parser_tokval(parser));
2555 if (!parser_next(parser)) {
2557 parseerror(parser, "expected loop body");
2562 vec_push(parser->breaks, label);
2563 vec_push(parser->continues, label);
2565 rv = parse_dowhile_go(parser, block, out);
2568 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2569 parseerror(parser, "internal error: label stack corrupted");
2575 vec_pop(parser->breaks);
2576 vec_pop(parser->continues);
2581 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out)
2584 ast_expression *cond, *ontrue;
2588 lex_ctx ctx = parser_ctx(parser);
2590 (void)block; /* not touching */
2592 if (!parse_statement_or_block(parser, &ontrue))
2595 /* expect the "while" */
2596 if (parser->tok != TOKEN_KEYWORD ||
2597 strcmp(parser_tokval(parser), "while"))
2599 parseerror(parser, "expected 'while' and condition");
2604 /* skip the 'while' and check for opening paren */
2605 if (!parser_next(parser) || parser->tok != '(') {
2606 parseerror(parser, "expected 'while' condition in parenthesis");
2610 /* parse into the expression */
2611 if (!parser_next(parser)) {
2612 parseerror(parser, "expected 'while' condition after opening paren");
2616 /* parse the condition */
2617 cond = parse_expression_leave(parser, false, true, false);
2621 if (parser->tok != ')') {
2622 parseerror(parser, "expected closing paren after 'while' condition");
2628 if (!parser_next(parser) || parser->tok != ';') {
2629 parseerror(parser, "expected semicolon after condition");
2635 if (!parser_next(parser)) {
2636 parseerror(parser, "parse error");
2642 cond = process_condition(parser, cond, &ifnot);
2647 aloop = ast_loop_new(ctx, NULL, NULL, false, cond, ifnot, NULL, ontrue);
2648 *out = (ast_expression*)aloop;
2652 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out);
2653 static bool parse_for(parser_t *parser, ast_block *block, ast_expression **out)
2658 /* skip the 'for' and check for opening paren */
2659 if (!parser_next(parser)) {
2660 if (OPTS_FLAG(LOOP_LABELS))
2661 parseerror(parser, "expected loop label or 'for' expressions in parenthesis");
2663 parseerror(parser, "expected 'for' expressions in parenthesis");
2667 if (parser->tok == ':') {
2668 if (!OPTS_FLAG(LOOP_LABELS))
2669 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2670 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2671 parseerror(parser, "expected loop label");
2674 label = util_strdup(parser_tokval(parser));
2675 if (!parser_next(parser)) {
2677 parseerror(parser, "expected 'for' expressions in parenthesis");
2682 if (parser->tok != '(') {
2683 parseerror(parser, "expected 'for' expressions in parenthesis");
2687 vec_push(parser->breaks, label);
2688 vec_push(parser->continues, label);
2690 rv = parse_for_go(parser, block, out);
2693 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2694 parseerror(parser, "internal error: label stack corrupted");
2700 vec_pop(parser->breaks);
2701 vec_pop(parser->continues);
2705 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out)
2708 ast_expression *initexpr, *cond, *increment, *ontrue;
2714 lex_ctx ctx = parser_ctx(parser);
2716 parser_enterblock(parser);
2723 /* parse into the expression */
2724 if (!parser_next(parser)) {
2725 parseerror(parser, "expected 'for' initializer after opening paren");
2730 if (parser->tok == TOKEN_IDENT)
2731 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
2733 if (typevar || parser->tok == TOKEN_TYPENAME) {
2735 if (OPTS_OPTION_U32(OPTION_STANDARD) != COMPILER_GMQCC) {
2736 if (parsewarning(parser, WARN_EXTENSIONS,
2737 "current standard does not allow variable declarations in for-loop initializers"))
2741 if (!parse_variable(parser, block, true, CV_VAR, typevar, false, false, 0, NULL))
2744 else if (parser->tok != ';')
2746 initexpr = parse_expression_leave(parser, false, false, false);
2751 /* move on to condition */
2752 if (parser->tok != ';') {
2753 parseerror(parser, "expected semicolon after for-loop initializer");
2756 if (!parser_next(parser)) {
2757 parseerror(parser, "expected for-loop condition");
2761 /* parse the condition */
2762 if (parser->tok != ';') {
2763 cond = parse_expression_leave(parser, false, true, false);
2768 /* move on to incrementor */
2769 if (parser->tok != ';') {
2770 parseerror(parser, "expected semicolon after for-loop initializer");
2773 if (!parser_next(parser)) {
2774 parseerror(parser, "expected for-loop condition");
2778 /* parse the incrementor */
2779 if (parser->tok != ')') {
2780 lex_ctx condctx = parser_ctx(parser);
2781 increment = parse_expression_leave(parser, false, false, false);
2784 if (!ast_side_effects(increment)) {
2785 if (compile_warning(condctx, WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
2791 if (parser->tok != ')') {
2792 parseerror(parser, "expected closing paren after 'for-loop' incrementor");
2795 /* parse into the 'then' branch */
2796 if (!parser_next(parser)) {
2797 parseerror(parser, "expected for-loop body");
2800 if (!parse_statement_or_block(parser, &ontrue))
2804 cond = process_condition(parser, cond, &ifnot);
2808 aloop = ast_loop_new(ctx, initexpr, cond, ifnot, NULL, false, increment, ontrue);
2809 *out = (ast_expression*)aloop;
2811 if (!parser_leaveblock(parser))
2815 if (initexpr) ast_delete(initexpr);
2816 if (cond) ast_delete(cond);
2817 if (increment) ast_delete(increment);
2818 (void)!parser_leaveblock(parser);
2822 static bool parse_return(parser_t *parser, ast_block *block, ast_expression **out)
2824 ast_expression *exp = NULL;
2825 ast_return *ret = NULL;
2826 ast_value *expected = parser->function->vtype;
2828 lex_ctx ctx = parser_ctx(parser);
2830 (void)block; /* not touching */
2832 if (!parser_next(parser)) {
2833 parseerror(parser, "expected return expression");
2837 if (parser->tok != ';') {
2838 exp = parse_expression(parser, false, false);
2842 if (exp->expression.vtype != TYPE_NIL &&
2843 exp->expression.vtype != expected->expression.next->expression.vtype)
2845 parseerror(parser, "return with invalid expression");
2848 ret = ast_return_new(ctx, exp);
2854 if (!parser_next(parser))
2855 parseerror(parser, "parse error");
2856 if (expected->expression.next->expression.vtype != TYPE_VOID) {
2857 (void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value");
2859 ret = ast_return_new(ctx, NULL);
2861 *out = (ast_expression*)ret;
2865 static bool parse_break_continue(parser_t *parser, ast_block *block, ast_expression **out, bool is_continue)
2868 unsigned int levels = 0;
2869 lex_ctx ctx = parser_ctx(parser);
2870 const char **loops = (is_continue ? parser->continues : parser->breaks);
2872 (void)block; /* not touching */
2873 if (!parser_next(parser)) {
2874 parseerror(parser, "expected semicolon or loop label");
2878 if (!vec_size(loops)) {
2880 parseerror(parser, "`continue` can only be used inside loops");
2882 parseerror(parser, "`break` can only be used inside loops or switches");
2885 if (parser->tok == TOKEN_IDENT) {
2886 if (!OPTS_FLAG(LOOP_LABELS))
2887 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2888 i = vec_size(loops);
2890 if (loops[i] && !strcmp(loops[i], parser_tokval(parser)))
2893 parseerror(parser, "no such loop to %s: `%s`",
2894 (is_continue ? "continue" : "break out of"),
2895 parser_tokval(parser));
2900 if (!parser_next(parser)) {
2901 parseerror(parser, "expected semicolon");
2906 if (parser->tok != ';') {
2907 parseerror(parser, "expected semicolon");
2911 if (!parser_next(parser))
2912 parseerror(parser, "parse error");
2914 *out = (ast_expression*)ast_breakcont_new(ctx, is_continue, levels);
2918 /* returns true when it was a variable qualifier, false otherwise!
2919 * on error, cvq is set to CV_WRONG
2921 static bool parse_qualifiers(parser_t *parser, bool with_local, int *cvq, bool *noref, bool *is_static, uint32_t *_flags, char **message)
2923 bool had_const = false;
2924 bool had_var = false;
2925 bool had_noref = false;
2926 bool had_attrib = false;
2927 bool had_static = false;
2932 if (parser->tok == TOKEN_ATTRIBUTE_OPEN) {
2934 /* parse an attribute */
2935 if (!parser_next(parser)) {
2936 parseerror(parser, "expected attribute after `[[`");
2940 if (!strcmp(parser_tokval(parser), "noreturn")) {
2941 flags |= AST_FLAG_NORETURN;
2942 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2943 parseerror(parser, "`noreturn` attribute has no parameters, expected `]]`");
2948 else if (!strcmp(parser_tokval(parser), "noref")) {
2950 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2951 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2956 else if (!strcmp(parser_tokval(parser), "inline")) {
2957 flags |= AST_FLAG_INLINE;
2958 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2959 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2964 else if (!strcmp(parser_tokval(parser), "alias") && !(flags & AST_FLAG_ALIAS)) {
2965 flags |= AST_FLAG_ALIAS;
2968 if (!parser_next(parser)) {
2969 parseerror(parser, "parse error in attribute");
2973 if (parser->tok == '(') {
2974 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
2975 parseerror(parser, "`alias` attribute missing parameter");
2979 *message = util_strdup(parser_tokval(parser));
2981 if (!parser_next(parser)) {
2982 parseerror(parser, "parse error in attribute");
2986 if (parser->tok != ')') {
2987 parseerror(parser, "`alias` attribute expected `)` after parameter");
2991 if (!parser_next(parser)) {
2992 parseerror(parser, "parse error in attribute");
2997 if (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2998 parseerror(parser, "`alias` attribute expected `]]`");
3002 else if (!strcmp(parser_tokval(parser), "deprecated") && !(flags & AST_FLAG_DEPRECATED)) {
3003 flags |= AST_FLAG_DEPRECATED;
3006 if (!parser_next(parser)) {
3007 parseerror(parser, "parse error in attribute");
3011 if (parser->tok == '(') {
3012 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
3013 parseerror(parser, "`deprecated` attribute missing parameter");
3017 *message = util_strdup(parser_tokval(parser));
3019 if (!parser_next(parser)) {
3020 parseerror(parser, "parse error in attribute");
3024 if(parser->tok != ')') {
3025 parseerror(parser, "`deprecated` attribute expected `)` after parameter");
3029 if (!parser_next(parser)) {
3030 parseerror(parser, "parse error in attribute");
3035 if (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
3036 parseerror(parser, "`deprecated` attribute expected `]]`");
3039 if (*message) mem_d(*message);
3047 /* Skip tokens until we hit a ]] */
3048 (void)!parsewarning(parser, WARN_UNKNOWN_ATTRIBUTE, "unknown attribute starting with `%s`", parser_tokval(parser));
3049 while (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
3050 if (!parser_next(parser)) {
3051 parseerror(parser, "error inside attribute");
3058 else if (with_local && !strcmp(parser_tokval(parser), "static"))
3060 else if (!strcmp(parser_tokval(parser), "const"))
3062 else if (!strcmp(parser_tokval(parser), "var"))
3064 else if (with_local && !strcmp(parser_tokval(parser), "local"))
3066 else if (!strcmp(parser_tokval(parser), "noref"))
3068 else if (!had_const && !had_var && !had_noref && !had_attrib && !had_static && !flags) {
3073 if (!parser_next(parser))
3083 *is_static = had_static;
3087 parseerror(parser, "parse error after variable qualifier");
3092 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out);
3093 static bool parse_switch(parser_t *parser, ast_block *block, ast_expression **out)
3098 /* skip the 'while' and get the body */
3099 if (!parser_next(parser)) {
3100 if (OPTS_FLAG(LOOP_LABELS))
3101 parseerror(parser, "expected loop label or 'switch' operand in parenthesis");
3103 parseerror(parser, "expected 'switch' operand in parenthesis");
3107 if (parser->tok == ':') {
3108 if (!OPTS_FLAG(LOOP_LABELS))
3109 parseerror(parser, "labeled loops not activated, try using -floop-labels");
3110 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
3111 parseerror(parser, "expected loop label");
3114 label = util_strdup(parser_tokval(parser));
3115 if (!parser_next(parser)) {
3117 parseerror(parser, "expected 'switch' operand in parenthesis");
3122 if (parser->tok != '(') {
3123 parseerror(parser, "expected 'switch' operand in parenthesis");
3127 vec_push(parser->breaks, label);
3129 rv = parse_switch_go(parser, block, out);
3132 if (vec_last(parser->breaks) != label) {
3133 parseerror(parser, "internal error: label stack corrupted");
3139 vec_pop(parser->breaks);
3144 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out)
3146 ast_expression *operand;
3149 ast_switch *switchnode;
3150 ast_switch_case swcase;
3153 bool noref, is_static;
3154 uint32_t qflags = 0;
3156 lex_ctx ctx = parser_ctx(parser);
3158 (void)block; /* not touching */
3161 /* parse into the expression */
3162 if (!parser_next(parser)) {
3163 parseerror(parser, "expected switch operand");
3166 /* parse the operand */
3167 operand = parse_expression_leave(parser, false, false, false);
3171 switchnode = ast_switch_new(ctx, operand);
3174 if (parser->tok != ')') {
3175 ast_delete(switchnode);
3176 parseerror(parser, "expected closing paren after 'switch' operand");
3180 /* parse over the opening paren */
3181 if (!parser_next(parser) || parser->tok != '{') {
3182 ast_delete(switchnode);
3183 parseerror(parser, "expected list of cases");
3187 if (!parser_next(parser)) {
3188 ast_delete(switchnode);
3189 parseerror(parser, "expected 'case' or 'default'");
3193 /* new block; allow some variables to be declared here */
3194 parser_enterblock(parser);
3197 if (parser->tok == TOKEN_IDENT)
3198 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
3199 if (typevar || parser->tok == TOKEN_TYPENAME) {
3200 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL)) {
3201 ast_delete(switchnode);
3206 if (parse_qualifiers(parser, true, &cvq, &noref, &is_static, &qflags, NULL))
3208 if (cvq == CV_WRONG) {
3209 ast_delete(switchnode);
3212 if (!parse_variable(parser, block, false, cvq, NULL, noref, is_static, qflags, NULL)) {
3213 ast_delete(switchnode);
3222 while (parser->tok != '}') {
3223 ast_block *caseblock;
3225 if (!strcmp(parser_tokval(parser), "case")) {
3226 if (!parser_next(parser)) {
3227 ast_delete(switchnode);
3228 parseerror(parser, "expected expression for case");
3231 swcase.value = parse_expression_leave(parser, false, false, false);
3232 if (!swcase.value) {
3233 ast_delete(switchnode);
3234 parseerror(parser, "expected expression for case");
3237 if (!OPTS_FLAG(RELAXED_SWITCH)) {
3238 if (!ast_istype(swcase.value, ast_value)) { /* || ((ast_value*)swcase.value)->cvq != CV_CONST) { */
3239 parseerror(parser, "case on non-constant values need to be explicitly enabled via -frelaxed-switch");
3245 else if (!strcmp(parser_tokval(parser), "default")) {
3246 swcase.value = NULL;
3247 if (!parser_next(parser)) {
3248 ast_delete(switchnode);
3249 parseerror(parser, "expected colon");
3254 ast_delete(switchnode);
3255 parseerror(parser, "expected 'case' or 'default'");
3259 /* Now the colon and body */
3260 if (parser->tok != ':') {
3261 if (swcase.value) ast_unref(swcase.value);
3262 ast_delete(switchnode);
3263 parseerror(parser, "expected colon");
3267 if (!parser_next(parser)) {
3268 if (swcase.value) ast_unref(swcase.value);
3269 ast_delete(switchnode);
3270 parseerror(parser, "expected statements or case");
3273 caseblock = ast_block_new(parser_ctx(parser));
3275 if (swcase.value) ast_unref(swcase.value);
3276 ast_delete(switchnode);
3279 swcase.code = (ast_expression*)caseblock;
3280 vec_push(switchnode->cases, swcase);
3282 ast_expression *expr;
3283 if (parser->tok == '}')
3285 if (parser->tok == TOKEN_KEYWORD) {
3286 if (!strcmp(parser_tokval(parser), "case") ||
3287 !strcmp(parser_tokval(parser), "default"))
3292 if (!parse_statement(parser, caseblock, &expr, true)) {
3293 ast_delete(switchnode);
3298 if (!ast_block_add_expr(caseblock, expr)) {
3299 ast_delete(switchnode);
3305 parser_leaveblock(parser);
3308 if (parser->tok != '}') {
3309 ast_delete(switchnode);
3310 parseerror(parser, "expected closing paren of case list");
3313 if (!parser_next(parser)) {
3314 ast_delete(switchnode);
3315 parseerror(parser, "parse error after switch");
3318 *out = (ast_expression*)switchnode;
3322 ast_expression *parser_builtin_pow(parser_t *parser) {
3324 * float __builtin_pow(float x, float y) {
3325 * float value = 1.0f;
3332 * value = x * value;
3337 static ast_function *pow_func = NULL;
3338 static ast_value *pow_func_val = NULL;
3340 ast_value *pow_arguments[2];
3341 ast_value *pow_value = ast_value_new (parser_ctx(parser), "value", TYPE_FLOAT);
3342 ast_block *pow_body = ast_block_new (parser_ctx(parser));
3343 ast_block *pow_loop_body = ast_block_new (parser_ctx(parser));
3344 ast_block *pow_loop_nest_body = ast_block_new (parser_ctx(parser));
3345 ast_loop *pow_loop = NULL;
3346 ast_loop *pow_loop_nest = NULL;
3348 pow_arguments[0] = ast_value_new (parser_ctx(parser), "x", TYPE_FLOAT);
3349 pow_arguments[1] = ast_value_new (parser_ctx(parser), "x", TYPE_FLOAT);
3350 pow_func_val = ast_value_new (parser_ctx(parser), "__builtin_pow", TYPE_FUNCTION);
3351 pow_func_val->expression.next = (ast_expression*)ast_value_new(parser_ctx(parser), "<float>", TYPE_FLOAT);
3353 vec_push(pow_func_val->expression.params, pow_arguments[0]);
3354 vec_push(pow_func_val->expression.params, pow_arguments[1]);
3356 pow_func = ast_function_new(parser_ctx(parser), "__builtin_pow", pow_func_val);
3359 vec_push(pow_body->locals, pow_value);
3361 vec_push(pow_body->exprs,
3362 (ast_expression*)ast_store_new(
3365 (ast_expression*)pow_value,
3366 (ast_expression*)parser_const_float_1(parser)
3371 vec_push(pow_loop_nest_body->exprs,
3372 (ast_expression*)ast_binstore_new(
3376 (ast_expression*)pow_arguments[1],
3377 (ast_expression*)parser_const_float(parser, 0.25f)
3380 vec_push(pow_loop_nest_body->exprs,
3381 (ast_expression*)ast_binstore_new(
3385 (ast_expression*)pow_arguments[0],
3386 (ast_expression*)pow_arguments[0]
3390 /* while (!(y&1)) */
3391 pow_loop_nest = ast_loop_new (
3394 (ast_expression*)ast_binary_new(
3397 (ast_expression*)pow_arguments[1],
3398 (ast_expression*)parser_const_float_1(parser)
3404 (ast_expression*)pow_loop_nest_body
3407 vec_push(pow_loop_body->exprs, (ast_expression*)pow_loop_nest);
3408 vec_push(pow_loop_body->exprs,
3409 (ast_expression*)ast_binstore_new(
3413 (ast_expression*)pow_arguments[1],
3414 (ast_expression*)parser_const_float_1(parser)
3417 vec_push(pow_loop_body->exprs,
3418 (ast_expression*)ast_binstore_new(
3422 (ast_expression*)pow_value,
3423 (ast_expression*)pow_arguments[0]
3427 /* while (y > 0) { */
3428 pow_loop = ast_loop_new(
3431 (ast_expression*)ast_binary_new(
3434 (ast_expression*)pow_arguments[1],
3435 (ast_expression*)parser_const_float_0(parser)
3441 (ast_expression*)pow_loop_body
3444 vec_push(pow_body->exprs, (ast_expression*)pow_loop);
3446 vec_push(pow_body->exprs,
3447 (ast_expression*)ast_return_new(
3449 (ast_expression*)pow_value
3453 vec_push(pow_func->blocks, pow_body);
3454 vec_push(parser->globals, (ast_expression*)pow_func_val);
3455 vec_push(parser->functions, pow_func);
3458 return (ast_expression*)pow_func_val;
3461 /* parse computed goto sides */
3462 static ast_expression *parse_goto_computed(parser_t *parser, ast_expression **side) {
3463 ast_expression *on_true;
3464 ast_expression *on_false;
3465 ast_expression *cond;
3470 if (ast_istype(*side, ast_ternary)) {
3471 ast_ternary *tern = (ast_ternary*)*side;
3472 on_true = parse_goto_computed(parser, &tern->on_true);
3473 on_false = parse_goto_computed(parser, &tern->on_false);
3475 if (!on_true || !on_false) {
3476 parseerror(parser, "expected label or expression in ternary");
3477 if (on_true) ast_unref(on_true);
3478 if (on_false) ast_unref(on_false);
3486 return (ast_expression*)ast_ifthen_new(parser_ctx(parser), cond, on_true, on_false);
3487 } else if (ast_istype(*side, ast_label)) {
3488 ast_goto *gt = ast_goto_new(parser_ctx(parser), ((ast_label*)*side)->name);
3489 ast_goto_set_label(gt, ((ast_label*)*side));
3491 return (ast_expression*)gt;
3496 static bool parse_goto(parser_t *parser, ast_expression **out)
3498 ast_goto *gt = NULL;
3499 ast_expression *lbl;
3501 if (!parser_next(parser))
3504 if (parser->tok != TOKEN_IDENT) {
3505 ast_expression *expression;
3507 /* could be an expression i.e computed goto :-) */
3508 if (parser->tok != '(') {
3509 parseerror(parser, "expected label name after `goto`");
3513 /* failed to parse expression for goto */
3514 if (!(expression = parse_expression(parser, false, true)) ||
3515 !(*out = parse_goto_computed(parser, &expression))) {
3516 parseerror(parser, "invalid goto expression");
3517 ast_unref(expression);
3524 /* not computed goto */
3525 gt = ast_goto_new(parser_ctx(parser), parser_tokval(parser));
3526 lbl = parser_find_label(parser, gt->name);
3528 if (!ast_istype(lbl, ast_label)) {
3529 parseerror(parser, "internal error: label is not an ast_label");
3533 ast_goto_set_label(gt, (ast_label*)lbl);
3536 vec_push(parser->gotos, gt);
3538 if (!parser_next(parser) || parser->tok != ';') {
3539 parseerror(parser, "semicolon expected after goto label");
3542 if (!parser_next(parser)) {
3543 parseerror(parser, "parse error after goto");
3547 *out = (ast_expression*)gt;
3551 static bool parse_skipwhite(parser_t *parser)
3554 if (!parser_next(parser))
3556 } while (parser->tok == TOKEN_WHITE && parser->tok < TOKEN_ERROR);
3557 return parser->tok < TOKEN_ERROR;
3560 static bool parse_eol(parser_t *parser)
3562 if (!parse_skipwhite(parser))
3564 return parser->tok == TOKEN_EOL;
3567 static bool parse_pragma_do(parser_t *parser)
3569 if (!parser_next(parser) ||
3570 parser->tok != TOKEN_IDENT ||
3571 strcmp(parser_tokval(parser), "pragma"))
3573 parseerror(parser, "expected `pragma` keyword after `#`, got `%s`", parser_tokval(parser));
3576 if (!parse_skipwhite(parser) || parser->tok != TOKEN_IDENT) {
3577 parseerror(parser, "expected pragma, got `%s`", parser_tokval(parser));
3581 if (!strcmp(parser_tokval(parser), "noref")) {
3582 if (!parse_skipwhite(parser) || parser->tok != TOKEN_INTCONST) {
3583 parseerror(parser, "`noref` pragma requires an argument: 0 or 1");
3586 parser->noref = !!parser_token(parser)->constval.i;
3587 if (!parse_eol(parser)) {
3588 parseerror(parser, "parse error after `noref` pragma");
3594 (void)!parsewarning(parser, WARN_UNKNOWN_PRAGMAS, "ignoring #pragma %s", parser_tokval(parser));
3601 static bool parse_pragma(parser_t *parser)
3604 parser->lex->flags.preprocessing = true;
3605 parser->lex->flags.mergelines = true;
3606 rv = parse_pragma_do(parser);
3607 if (parser->tok != TOKEN_EOL) {
3608 parseerror(parser, "junk after pragma");
3611 parser->lex->flags.preprocessing = false;
3612 parser->lex->flags.mergelines = false;
3613 if (!parser_next(parser)) {
3614 parseerror(parser, "parse error after pragma");
3620 static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases)
3622 bool noref, is_static;
3624 uint32_t qflags = 0;
3625 ast_value *typevar = NULL;
3626 char *vstring = NULL;
3630 if (parser->tok == TOKEN_IDENT)
3631 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
3633 if (typevar || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
3635 /* local variable */
3637 parseerror(parser, "cannot declare a variable from here");
3640 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
3641 if (parsewarning(parser, WARN_EXTENSIONS, "missing 'local' keyword when declaring a local variable"))
3644 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL))
3648 else if (parse_qualifiers(parser, !!block, &cvq, &noref, &is_static, &qflags, &vstring))
3650 if (cvq == CV_WRONG)
3652 return parse_variable(parser, block, true, cvq, NULL, noref, is_static, qflags, vstring);
3654 else if (parser->tok == TOKEN_KEYWORD)
3656 if (!strcmp(parser_tokval(parser), "__builtin_debug_printtype"))
3661 if (!parser_next(parser)) {
3662 parseerror(parser, "parse error after __builtin_debug_printtype");
3666 if (parser->tok == TOKEN_IDENT && (tdef = parser_find_typedef(parser, parser_tokval(parser), 0)))
3668 ast_type_to_string((ast_expression*)tdef, ty, sizeof(ty));
3669 con_out("__builtin_debug_printtype: `%s`=`%s`\n", tdef->name, ty);
3670 if (!parser_next(parser)) {
3671 parseerror(parser, "parse error after __builtin_debug_printtype typename argument");
3677 if (!parse_statement(parser, block, out, allow_cases))
3680 con_out("__builtin_debug_printtype: got no output node\n");
3683 ast_type_to_string(*out, ty, sizeof(ty));
3684 con_out("__builtin_debug_printtype: `%s`\n", ty);
3689 else if (!strcmp(parser_tokval(parser), "return"))
3691 return parse_return(parser, block, out);
3693 else if (!strcmp(parser_tokval(parser), "if"))
3695 return parse_if(parser, block, out);
3697 else if (!strcmp(parser_tokval(parser), "while"))
3699 return parse_while(parser, block, out);
3701 else if (!strcmp(parser_tokval(parser), "do"))
3703 return parse_dowhile(parser, block, out);
3705 else if (!strcmp(parser_tokval(parser), "for"))
3707 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
3708 if (parsewarning(parser, WARN_EXTENSIONS, "for loops are not recognized in the original Quake C standard, to enable try an alternate standard --std=?"))
3711 return parse_for(parser, block, out);
3713 else if (!strcmp(parser_tokval(parser), "break"))
3715 return parse_break_continue(parser, block, out, false);
3717 else if (!strcmp(parser_tokval(parser), "continue"))
3719 return parse_break_continue(parser, block, out, true);
3721 else if (!strcmp(parser_tokval(parser), "switch"))
3723 return parse_switch(parser, block, out);
3725 else if (!strcmp(parser_tokval(parser), "case") ||
3726 !strcmp(parser_tokval(parser), "default"))
3729 parseerror(parser, "unexpected 'case' label");
3734 else if (!strcmp(parser_tokval(parser), "goto"))
3736 return parse_goto(parser, out);
3738 else if (!strcmp(parser_tokval(parser), "typedef"))
3740 if (!parser_next(parser)) {
3741 parseerror(parser, "expected type definition after 'typedef'");
3744 return parse_typedef(parser);
3746 parseerror(parser, "Unexpected keyword");
3749 else if (parser->tok == '{')
3752 inner = parse_block(parser);
3755 *out = (ast_expression*)inner;
3758 else if (parser->tok == ':')
3762 if (!parser_next(parser)) {
3763 parseerror(parser, "expected label name");
3766 if (parser->tok != TOKEN_IDENT) {
3767 parseerror(parser, "label must be an identifier");
3770 label = (ast_label*)parser_find_label(parser, parser_tokval(parser));
3772 if (!label->undefined) {
3773 parseerror(parser, "label `%s` already defined", label->name);
3776 label->undefined = false;
3779 label = ast_label_new(parser_ctx(parser), parser_tokval(parser), false);
3780 vec_push(parser->labels, label);
3782 *out = (ast_expression*)label;
3783 if (!parser_next(parser)) {
3784 parseerror(parser, "parse error after label");
3787 for (i = 0; i < vec_size(parser->gotos); ++i) {
3788 if (!strcmp(parser->gotos[i]->name, label->name)) {
3789 ast_goto_set_label(parser->gotos[i], label);
3790 vec_remove(parser->gotos, i, 1);
3796 else if (parser->tok == ';')
3798 if (!parser_next(parser)) {
3799 parseerror(parser, "parse error after empty statement");
3806 lex_ctx ctx = parser_ctx(parser);
3807 ast_expression *exp = parse_expression(parser, false, false);
3811 if (!ast_side_effects(exp)) {
3812 if (compile_warning(ctx, WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
3819 static bool parse_enum(parser_t *parser)
3822 ast_value **values = NULL;
3823 ast_value *var = NULL;
3826 ast_expression *old;
3828 if (!parser_next(parser) || parser->tok != '{') {
3829 parseerror(parser, "expected `{` after `enum` keyword");
3834 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
3835 if (parser->tok == '}') {
3836 /* allow an empty enum */
3839 parseerror(parser, "expected identifier or `}`");
3843 old = parser_find_field(parser, parser_tokval(parser));
3845 old = parser_find_global(parser, parser_tokval(parser));
3847 parseerror(parser, "value `%s` has already been declared here: %s:%i",
3848 parser_tokval(parser), ast_ctx(old).file, ast_ctx(old).line);
3852 var = ast_value_new(parser_ctx(parser), parser_tokval(parser), TYPE_FLOAT);
3853 vec_push(values, var);
3854 var->cvq = CV_CONST;
3855 var->hasvalue = true;
3856 var->constval.vfloat = num++;
3858 parser_addglobal(parser, var->name, (ast_expression*)var);
3860 if (!parser_next(parser)) {
3861 parseerror(parser, "expected `=`, `}` or comma after identifier");
3865 if (parser->tok == ',')
3867 if (parser->tok == '}')
3869 if (parser->tok != '=') {
3870 parseerror(parser, "expected `=`, `}` or comma after identifier");
3874 if (!parser_next(parser)) {
3875 parseerror(parser, "expected expression after `=`");
3879 /* We got a value! */
3880 old = parse_expression_leave(parser, true, false, false);
3881 asvalue = (ast_value*)old;
3882 if (!ast_istype(old, ast_value) || asvalue->cvq != CV_CONST || !asvalue->hasvalue) {
3883 compile_error(ast_ctx(var), "constant value or expression expected");
3886 num = (var->constval.vfloat = asvalue->constval.vfloat) + 1;
3888 if (parser->tok == '}')
3890 if (parser->tok != ',') {
3891 parseerror(parser, "expected `}` or comma after expression");
3896 if (parser->tok != '}') {
3897 parseerror(parser, "internal error: breaking without `}`");
3901 if (!parser_next(parser) || parser->tok != ';') {
3902 parseerror(parser, "expected semicolon after enumeration");
3906 if (!parser_next(parser)) {
3907 parseerror(parser, "parse error after enumeration");
3919 static bool parse_block_into(parser_t *parser, ast_block *block)
3923 parser_enterblock(parser);
3925 if (!parser_next(parser)) { /* skip the '{' */
3926 parseerror(parser, "expected function body");
3930 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
3932 ast_expression *expr = NULL;
3933 if (parser->tok == '}')
3936 if (!parse_statement(parser, block, &expr, false)) {
3937 /* parseerror(parser, "parse error"); */
3943 if (!ast_block_add_expr(block, expr)) {
3950 if (parser->tok != '}') {
3953 (void)parser_next(parser);
3957 if (!parser_leaveblock(parser))
3959 return retval && !!block;
3962 static ast_block* parse_block(parser_t *parser)
3965 block = ast_block_new(parser_ctx(parser));
3968 if (!parse_block_into(parser, block)) {
3969 ast_block_delete(block);
3975 static bool parse_statement_or_block(parser_t *parser, ast_expression **out)
3977 if (parser->tok == '{') {
3978 *out = (ast_expression*)parse_block(parser);
3981 return parse_statement(parser, NULL, out, false);
3984 static bool create_vector_members(ast_value *var, ast_member **me)
3987 size_t len = strlen(var->name);
3989 for (i = 0; i < 3; ++i) {
3990 char *name = (char*)mem_a(len+3);
3991 memcpy(name, var->name, len);
3993 name[len+1] = 'x'+i;
3995 me[i] = ast_member_new(ast_ctx(var), (ast_expression*)var, i, name);
4004 do { ast_member_delete(me[--i]); } while(i);
4008 static bool parse_function_body(parser_t *parser, ast_value *var)
4010 ast_block *block = NULL;
4015 ast_expression *framenum = NULL;
4016 ast_expression *nextthink = NULL;
4017 /* None of the following have to be deleted */
4018 ast_expression *fld_think = NULL, *fld_nextthink = NULL, *fld_frame = NULL;
4019 ast_expression *gbl_time = NULL, *gbl_self = NULL;
4020 bool has_frame_think;
4024 has_frame_think = false;
4025 old = parser->function;
4027 if (var->expression.flags & AST_FLAG_ALIAS) {
4028 parseerror(parser, "function aliases cannot have bodies");
4032 if (vec_size(parser->gotos) || vec_size(parser->labels)) {
4033 parseerror(parser, "gotos/labels leaking");
4037 if (!OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC) {
4038 if (parsewarning(parser, WARN_VARIADIC_FUNCTION,
4039 "variadic function with implementation will not be able to access additional parameters (try -fvariadic-args)"))
4045 if (parser->tok == '[') {
4046 /* got a frame definition: [ framenum, nextthink ]
4047 * this translates to:
4048 * self.frame = framenum;
4049 * self.nextthink = time + 0.1;
4050 * self.think = nextthink;
4054 fld_think = parser_find_field(parser, "think");
4055 fld_nextthink = parser_find_field(parser, "nextthink");
4056 fld_frame = parser_find_field(parser, "frame");
4057 if (!fld_think || !fld_nextthink || !fld_frame) {
4058 parseerror(parser, "cannot use [frame,think] notation without the required fields");
4059 parseerror(parser, "please declare the following entityfields: `frame`, `think`, `nextthink`");
4062 gbl_time = parser_find_global(parser, "time");
4063 gbl_self = parser_find_global(parser, "self");
4064 if (!gbl_time || !gbl_self) {
4065 parseerror(parser, "cannot use [frame,think] notation without the required globals");
4066 parseerror(parser, "please declare the following globals: `time`, `self`");
4070 if (!parser_next(parser))
4073 framenum = parse_expression_leave(parser, true, false, false);
4075 parseerror(parser, "expected a framenumber constant in[frame,think] notation");
4078 if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->hasvalue) {
4079 ast_unref(framenum);
4080 parseerror(parser, "framenumber in [frame,think] notation must be a constant");
4084 if (parser->tok != ',') {
4085 ast_unref(framenum);
4086 parseerror(parser, "expected comma after frame number in [frame,think] notation");
4087 parseerror(parser, "Got a %i\n", parser->tok);
4091 if (!parser_next(parser)) {
4092 ast_unref(framenum);
4096 if (parser->tok == TOKEN_IDENT && !parser_find_var(parser, parser_tokval(parser)))
4098 /* qc allows the use of not-yet-declared functions here
4099 * - this automatically creates a prototype */
4100 ast_value *thinkfunc;
4101 ast_expression *functype = fld_think->expression.next;
4103 thinkfunc = ast_value_new(parser_ctx(parser), parser_tokval(parser), functype->expression.vtype);
4104 if (!thinkfunc) { /* || !ast_type_adopt(thinkfunc, functype)*/
4105 ast_unref(framenum);
4106 parseerror(parser, "failed to create implicit prototype for `%s`", parser_tokval(parser));
4109 ast_type_adopt(thinkfunc, functype);
4111 if (!parser_next(parser)) {
4112 ast_unref(framenum);
4113 ast_delete(thinkfunc);
4117 parser_addglobal(parser, thinkfunc->name, (ast_expression*)thinkfunc);
4119 nextthink = (ast_expression*)thinkfunc;
4122 nextthink = parse_expression_leave(parser, true, false, false);
4124 ast_unref(framenum);
4125 parseerror(parser, "expected a think-function in [frame,think] notation");
4130 if (!ast_istype(nextthink, ast_value)) {
4131 parseerror(parser, "think-function in [frame,think] notation must be a constant");
4135 if (retval && parser->tok != ']') {
4136 parseerror(parser, "expected closing `]` for [frame,think] notation");
4140 if (retval && !parser_next(parser)) {
4144 if (retval && parser->tok != '{') {
4145 parseerror(parser, "a function body has to be declared after a [frame,think] declaration");
4150 ast_unref(nextthink);
4151 ast_unref(framenum);
4155 has_frame_think = true;
4158 block = ast_block_new(parser_ctx(parser));
4160 parseerror(parser, "failed to allocate block");
4161 if (has_frame_think) {
4162 ast_unref(nextthink);
4163 ast_unref(framenum);
4168 if (has_frame_think) {
4170 ast_expression *self_frame;
4171 ast_expression *self_nextthink;
4172 ast_expression *self_think;
4173 ast_expression *time_plus_1;
4174 ast_store *store_frame;
4175 ast_store *store_nextthink;
4176 ast_store *store_think;
4178 ctx = parser_ctx(parser);
4179 self_frame = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_frame);
4180 self_nextthink = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_nextthink);
4181 self_think = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_think);
4183 time_plus_1 = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F,
4184 gbl_time, (ast_expression*)parser_const_float(parser, 0.1));
4186 if (!self_frame || !self_nextthink || !self_think || !time_plus_1) {
4187 if (self_frame) ast_delete(self_frame);
4188 if (self_nextthink) ast_delete(self_nextthink);
4189 if (self_think) ast_delete(self_think);
4190 if (time_plus_1) ast_delete(time_plus_1);
4196 store_frame = ast_store_new(ctx, INSTR_STOREP_F, self_frame, framenum);
4197 store_nextthink = ast_store_new(ctx, INSTR_STOREP_F, self_nextthink, time_plus_1);
4198 store_think = ast_store_new(ctx, INSTR_STOREP_FNC, self_think, nextthink);
4201 ast_delete(self_frame);
4204 if (!store_nextthink) {
4205 ast_delete(self_nextthink);
4209 ast_delete(self_think);
4213 if (store_frame) ast_delete(store_frame);
4214 if (store_nextthink) ast_delete(store_nextthink);
4215 if (store_think) ast_delete(store_think);
4218 if (!ast_block_add_expr(block, (ast_expression*)store_frame) ||
4219 !ast_block_add_expr(block, (ast_expression*)store_nextthink) ||
4220 !ast_block_add_expr(block, (ast_expression*)store_think))
4227 parseerror(parser, "failed to generate code for [frame,think]");
4228 ast_unref(nextthink);
4229 ast_unref(framenum);
4235 if (var->hasvalue) {
4236 parseerror(parser, "function `%s` declared with multiple bodies", var->name);
4237 ast_block_delete(block);
4241 func = ast_function_new(ast_ctx(var), var->name, var);
4243 parseerror(parser, "failed to allocate function for `%s`", var->name);
4244 ast_block_delete(block);
4247 vec_push(parser->functions, func);
4249 parser_enterblock(parser);
4251 for (parami = 0; parami < vec_size(var->expression.params); ++parami) {
4253 ast_value *param = var->expression.params[parami];
4256 if (param->expression.vtype != TYPE_VECTOR &&
4257 (param->expression.vtype != TYPE_FIELD ||
4258 param->expression.next->expression.vtype != TYPE_VECTOR))
4263 if (!create_vector_members(param, me)) {
4264 ast_block_delete(block);
4268 for (e = 0; e < 3; ++e) {
4269 parser_addlocal(parser, me[e]->name, (ast_expression*)me[e]);
4270 ast_block_collect(block, (ast_expression*)me[e]);
4274 if (var->argcounter) {
4275 ast_value *argc = ast_value_new(ast_ctx(var), var->argcounter, TYPE_FLOAT);
4276 parser_addlocal(parser, argc->name, (ast_expression*)argc);
4280 if (OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC) {
4282 ast_value *varargs = ast_value_new(ast_ctx(var), "reserved:va_args", TYPE_ARRAY);
4283 varargs->expression.flags |= AST_FLAG_IS_VARARG;
4284 varargs->expression.next = (ast_expression*)ast_value_new(ast_ctx(var), NULL, TYPE_VECTOR);
4285 varargs->expression.count = 0;
4286 snprintf(name, sizeof(name), "%s##va##SET", var->name);
4287 if (!parser_create_array_setter_proto(parser, varargs, name)) {
4288 ast_delete(varargs);
4289 ast_block_delete(block);
4292 snprintf(name, sizeof(name), "%s##va##GET", var->name);
4293 if (!parser_create_array_getter_proto(parser, varargs, varargs->expression.next, name)) {
4294 ast_delete(varargs);
4295 ast_block_delete(block);
4298 func->varargs = varargs;
4300 func->fixedparams = parser_const_float(parser, vec_size(var->expression.params));
4303 parser->function = func;
4304 if (!parse_block_into(parser, block)) {
4305 ast_block_delete(block);
4309 vec_push(func->blocks, block);
4311 parser->function = old;
4312 if (!parser_leaveblock(parser))
4314 if (vec_size(parser->variables) != PARSER_HT_LOCALS) {
4315 parseerror(parser, "internal error: local scopes left");
4319 if (parser->tok == ';')
4320 return parser_next(parser);
4321 else if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
4322 parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)");
4326 (void)!parser_leaveblock(parser);
4327 vec_pop(parser->functions);
4328 ast_function_delete(func);
4329 var->constval.vfunc = NULL;
4332 parser->function = old;
4336 static ast_expression *array_accessor_split(
4341 ast_expression *left,
4342 ast_expression *right
4348 lex_ctx ctx = ast_ctx(array);
4350 if (!left || !right) {
4351 if (left) ast_delete(left);
4352 if (right) ast_delete(right);
4356 cmp = ast_binary_new(ctx, INSTR_LT,
4357 (ast_expression*)index,
4358 (ast_expression*)parser_const_float(parser, middle));
4362 parseerror(parser, "internal error: failed to create comparison for array setter");
4366 ifthen = ast_ifthen_new(ctx, (ast_expression*)cmp, left, right);
4368 ast_delete(cmp); /* will delete left and right */
4369 parseerror(parser, "internal error: failed to create conditional jump for array setter");
4373 return (ast_expression*)ifthen;
4376 static ast_expression *array_setter_node(parser_t *parser, ast_value *array, ast_value *index, ast_value *value, size_t from, size_t afterend)
4378 lex_ctx ctx = ast_ctx(array);
4380 if (from+1 == afterend) {
4381 /* set this value */
4384 ast_array_index *subscript;
4386 int assignop = type_store_instr[value->expression.vtype];
4388 if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR)
4389 assignop = INSTR_STORE_V;
4391 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
4395 st = ast_store_new(ctx, assignop, (ast_expression*)subscript, (ast_expression*)value);
4397 ast_delete(subscript);
4401 block = ast_block_new(ctx);
4407 if (!ast_block_add_expr(block, (ast_expression*)st)) {
4412 ret = ast_return_new(ctx, NULL);
4418 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
4423 return (ast_expression*)block;
4425 ast_expression *left, *right;
4426 size_t diff = afterend - from;
4427 size_t middle = from + diff/2;
4428 left = array_setter_node(parser, array, index, value, from, middle);
4429 right = array_setter_node(parser, array, index, value, middle, afterend);
4430 return array_accessor_split(parser, array, index, middle, left, right);
4434 static ast_expression *array_field_setter_node(
4443 lex_ctx ctx = ast_ctx(array);
4445 if (from+1 == afterend) {
4446 /* set this value */
4449 ast_entfield *entfield;
4450 ast_array_index *subscript;
4452 int assignop = type_storep_instr[value->expression.vtype];
4454 if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR)
4455 assignop = INSTR_STOREP_V;
4457 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
4461 subscript->expression.next = ast_type_copy(ast_ctx(subscript), (ast_expression*)subscript);
4462 subscript->expression.vtype = TYPE_FIELD;
4464 entfield = ast_entfield_new_force(ctx,
4465 (ast_expression*)entity,
4466 (ast_expression*)subscript,
4467 (ast_expression*)subscript);
4469 ast_delete(subscript);
4473 st = ast_store_new(ctx, assignop, (ast_expression*)entfield, (ast_expression*)value);
4475 ast_delete(entfield);
4479 block = ast_block_new(ctx);
4485 if (!ast_block_add_expr(block, (ast_expression*)st)) {
4490 ret = ast_return_new(ctx, NULL);
4496 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
4501 return (ast_expression*)block;
4503 ast_expression *left, *right;
4504 size_t diff = afterend - from;
4505 size_t middle = from + diff/2;
4506 left = array_field_setter_node(parser, array, entity, index, value, from, middle);
4507 right = array_field_setter_node(parser, array, entity, index, value, middle, afterend);
4508 return array_accessor_split(parser, array, index, middle, left, right);
4512 static ast_expression *array_getter_node(parser_t *parser, ast_value *array, ast_value *index, size_t from, size_t afterend)
4514 lex_ctx ctx = ast_ctx(array);
4516 if (from+1 == afterend) {
4518 ast_array_index *subscript;
4520 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
4524 ret = ast_return_new(ctx, (ast_expression*)subscript);
4526 ast_delete(subscript);
4530 return (ast_expression*)ret;
4532 ast_expression *left, *right;
4533 size_t diff = afterend - from;
4534 size_t middle = from + diff/2;
4535 left = array_getter_node(parser, array, index, from, middle);
4536 right = array_getter_node(parser, array, index, middle, afterend);
4537 return array_accessor_split(parser, array, index, middle, left, right);
4541 static bool parser_create_array_accessor(parser_t *parser, ast_value *array, const char *funcname, ast_value **out)
4543 ast_function *func = NULL;
4544 ast_value *fval = NULL;
4545 ast_block *body = NULL;
4547 fval = ast_value_new(ast_ctx(array), funcname, TYPE_FUNCTION);
4549 parseerror(parser, "failed to create accessor function value");
4553 func = ast_function_new(ast_ctx(array), funcname, fval);
4556 parseerror(parser, "failed to create accessor function node");
4560 body = ast_block_new(ast_ctx(array));
4562 parseerror(parser, "failed to create block for array accessor");
4568 vec_push(func->blocks, body);
4571 vec_push(parser->accessors, fval);
4576 static ast_value* parser_create_array_setter_proto(parser_t *parser, ast_value *array, const char *funcname)
4578 ast_value *index = NULL;
4579 ast_value *value = NULL;
4583 if (!ast_istype(array->expression.next, ast_value)) {
4584 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4588 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4590 func = fval->constval.vfunc;
4591 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
4593 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4594 value = ast_value_copy((ast_value*)array->expression.next);
4596 if (!index || !value) {
4597 parseerror(parser, "failed to create locals for array accessor");
4600 (void)!ast_value_set_name(value, "value"); /* not important */
4601 vec_push(fval->expression.params, index);
4602 vec_push(fval->expression.params, value);
4604 array->setter = fval;
4607 if (index) ast_delete(index);
4608 if (value) ast_delete(value);
4614 static bool parser_create_array_setter_impl(parser_t *parser, ast_value *array)
4616 ast_expression *root = NULL;
4617 root = array_setter_node(parser, array,
4618 array->setter->expression.params[0],
4619 array->setter->expression.params[1],
4620 0, array->expression.count);
4622 parseerror(parser, "failed to build accessor search tree");
4625 if (!ast_block_add_expr(array->setter->constval.vfunc->blocks[0], root)) {
4632 static bool parser_create_array_setter(parser_t *parser, ast_value *array, const char *funcname)
4634 if (!parser_create_array_setter_proto(parser, array, funcname))
4636 return parser_create_array_setter_impl(parser, array);
4639 static bool parser_create_array_field_setter(parser_t *parser, ast_value *array, const char *funcname)
4641 ast_expression *root = NULL;
4642 ast_value *entity = NULL;
4643 ast_value *index = NULL;
4644 ast_value *value = NULL;
4648 if (!ast_istype(array->expression.next, ast_value)) {
4649 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4653 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4655 func = fval->constval.vfunc;
4656 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
4658 entity = ast_value_new(ast_ctx(array), "entity", TYPE_ENTITY);
4659 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4660 value = ast_value_copy((ast_value*)array->expression.next);
4661 if (!entity || !index || !value) {
4662 parseerror(parser, "failed to create locals for array accessor");
4665 (void)!ast_value_set_name(value, "value"); /* not important */
4666 vec_push(fval->expression.params, entity);
4667 vec_push(fval->expression.params, index);
4668 vec_push(fval->expression.params, value);
4670 root = array_field_setter_node(parser, array, entity, index, value, 0, array->expression.count);
4672 parseerror(parser, "failed to build accessor search tree");
4676 array->setter = fval;
4677 return ast_block_add_expr(func->blocks[0], root);
4679 if (entity) ast_delete(entity);
4680 if (index) ast_delete(index);
4681 if (value) ast_delete(value);
4682 if (root) ast_delete(root);
4688 static ast_value* parser_create_array_getter_proto(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
4690 ast_value *index = NULL;
4694 /* NOTE: checking array->expression.next rather than elemtype since
4695 * for fields elemtype is a temporary fieldtype.
4697 if (!ast_istype(array->expression.next, ast_value)) {
4698 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4702 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4704 func = fval->constval.vfunc;
4705 fval->expression.next = ast_type_copy(ast_ctx(array), elemtype);
4707 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4710 parseerror(parser, "failed to create locals for array accessor");
4713 vec_push(fval->expression.params, index);
4715 array->getter = fval;
4718 if (index) ast_delete(index);
4724 static bool parser_create_array_getter_impl(parser_t *parser, ast_value *array)
4726 ast_expression *root = NULL;
4728 root = array_getter_node(parser, array, array->getter->expression.params[0], 0, array->expression.count);
4730 parseerror(parser, "failed to build accessor search tree");
4733 if (!ast_block_add_expr(array->getter->constval.vfunc->blocks[0], root)) {
4740 static bool parser_create_array_getter(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
4742 if (!parser_create_array_getter_proto(parser, array, elemtype, funcname))
4744 return parser_create_array_getter_impl(parser, array);
4747 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
4748 static ast_value *parse_parameter_list(parser_t *parser, ast_value *var)
4756 bool variadic = false;
4757 ast_value *varparam = NULL;
4758 char *argcounter = NULL;
4760 ctx = parser_ctx(parser);
4762 /* for the sake of less code we parse-in in this function */
4763 if (!parser_next(parser)) {
4764 parseerror(parser, "expected parameter list");
4770 /* parse variables until we hit a closing paren */
4771 while (parser->tok != ')') {
4773 /* there must be commas between them */
4774 if (parser->tok != ',') {
4775 parseerror(parser, "expected comma or end of parameter list");
4778 if (!parser_next(parser)) {
4779 parseerror(parser, "expected parameter");
4785 if (parser->tok == TOKEN_DOTS) {
4786 /* '...' indicates a varargs function */
4788 if (!parser_next(parser) || (parser->tok != ')' && parser->tok != TOKEN_IDENT)) {
4789 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4792 if (parser->tok == TOKEN_IDENT) {
4793 argcounter = util_strdup(parser_tokval(parser));
4794 if (!parser_next(parser) || parser->tok != ')') {
4795 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4802 /* for anything else just parse a typename */
4803 param = parse_typename(parser, NULL, NULL);
4806 vec_push(params, param);
4807 if (param->expression.vtype >= TYPE_VARIANT) {
4808 char tname[1024]; /* typename is reserved in C++ */
4809 ast_type_to_string((ast_expression*)param, tname, sizeof(tname));
4810 parseerror(parser, "type not supported as part of a parameter list: %s", tname);
4813 /* type-restricted varargs */
4814 if (parser->tok == TOKEN_DOTS) {
4816 varparam = vec_last(params);
4818 if (!parser_next(parser) || (parser->tok != ')' && parser->tok != TOKEN_IDENT)) {
4819 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4822 if (parser->tok == TOKEN_IDENT) {
4823 argcounter = util_strdup(parser_tokval(parser));
4824 if (!parser_next(parser) || parser->tok != ')') {
4825 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4833 if (vec_size(params) == 1 && params[0]->expression.vtype == TYPE_VOID)
4837 if (vec_size(params) > 8 && OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
4838 (void)!parsewarning(parser, WARN_EXTENSIONS, "more than 8 parameters are not supported by this standard");
4841 if (!parser_next(parser)) {
4842 parseerror(parser, "parse error after typename");
4846 /* now turn 'var' into a function type */
4847 fval = ast_value_new(ctx, "<type()>", TYPE_FUNCTION);
4848 fval->expression.next = (ast_expression*)var;
4850 fval->expression.flags |= AST_FLAG_VARIADIC;
4853 var->expression.params = params;
4854 var->expression.varparam = (ast_expression*)varparam;
4855 var->argcounter = argcounter;
4864 for (i = 0; i < vec_size(params); ++i)
4865 ast_delete(params[i]);
4870 static ast_value *parse_arraysize(parser_t *parser, ast_value *var)
4872 ast_expression *cexp;
4873 ast_value *cval, *tmp;
4876 ctx = parser_ctx(parser);
4878 if (!parser_next(parser)) {
4880 parseerror(parser, "expected array-size");
4884 cexp = parse_expression_leave(parser, true, false, false);
4886 if (!cexp || !ast_istype(cexp, ast_value)) {
4890 parseerror(parser, "expected array-size as constant positive integer");
4893 cval = (ast_value*)cexp;
4895 tmp = ast_value_new(ctx, "<type[]>", TYPE_ARRAY);
4896 tmp->expression.next = (ast_expression*)var;
4899 if (cval->expression.vtype == TYPE_INTEGER)
4900 tmp->expression.count = cval->constval.vint;
4901 else if (cval->expression.vtype == TYPE_FLOAT)
4902 tmp->expression.count = cval->constval.vfloat;
4906 parseerror(parser, "array-size must be a positive integer constant");
4911 if (parser->tok != ']') {
4913 parseerror(parser, "expected ']' after array-size");
4916 if (!parser_next(parser)) {
4918 parseerror(parser, "error after parsing array size");
4924 /* Parse a complete typename.
4925 * for single-variables (ie. function parameters or typedefs) storebase should be NULL
4926 * but when parsing variables separated by comma
4927 * 'storebase' should point to where the base-type should be kept.
4928 * The base type makes up every bit of type information which comes *before* the
4931 * The following will be parsed in its entirety:
4933 * The 'basetype' in this case is 'void()'
4934 * and if there's a comma after it, say:
4936 * then the type-information 'void()' can be stored in 'storebase'
4938 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef)
4940 ast_value *var, *tmp;
4943 const char *name = NULL;
4944 bool isfield = false;
4945 bool wasarray = false;
4946 size_t morefields = 0;
4948 ctx = parser_ctx(parser);
4950 /* types may start with a dot */
4951 if (parser->tok == '.') {
4953 /* if we parsed a dot we need a typename now */
4954 if (!parser_next(parser)) {
4955 parseerror(parser, "expected typename for field definition");
4959 /* Further dots are handled seperately because they won't be part of the
4962 while (parser->tok == '.') {
4964 if (!parser_next(parser)) {
4965 parseerror(parser, "expected typename for field definition");
4970 if (parser->tok == TOKEN_IDENT)
4971 cached_typedef = parser_find_typedef(parser, parser_tokval(parser), 0);
4972 if (!cached_typedef && parser->tok != TOKEN_TYPENAME) {
4973 parseerror(parser, "expected typename");
4977 /* generate the basic type value */
4978 if (cached_typedef) {
4979 var = ast_value_copy(cached_typedef);
4980 ast_value_set_name(var, "<type(from_def)>");
4982 var = ast_value_new(ctx, "<type>", parser_token(parser)->constval.t);
4984 for (; morefields; --morefields) {
4985 tmp = ast_value_new(ctx, "<.type>", TYPE_FIELD);
4986 tmp->expression.next = (ast_expression*)var;
4990 /* do not yet turn into a field - remember:
4991 * .void() foo; is a field too
4992 * .void()() foo; is a function
4996 if (!parser_next(parser)) {
4998 parseerror(parser, "parse error after typename");
5002 /* an opening paren now starts the parameter-list of a function
5003 * this is where original-QC has parameter lists.
5004 * We allow a single parameter list here.
5005 * Much like fteqcc we don't allow `float()() x`
5007 if (parser->tok == '(') {
5008 var = parse_parameter_list(parser, var);
5013 /* store the base if requested */
5015 *storebase = ast_value_copy(var);
5017 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
5018 tmp->expression.next = (ast_expression*)*storebase;
5023 /* there may be a name now */
5024 if (parser->tok == TOKEN_IDENT) {
5025 name = util_strdup(parser_tokval(parser));
5027 if (!parser_next(parser)) {
5029 parseerror(parser, "error after variable or field declaration");
5034 /* now this may be an array */
5035 if (parser->tok == '[') {
5037 var = parse_arraysize(parser, var);
5042 /* This is the point where we can turn it into a field */
5044 /* turn it into a field if desired */
5045 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
5046 tmp->expression.next = (ast_expression*)var;
5050 /* now there may be function parens again */
5051 if (parser->tok == '(' && OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
5052 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
5053 if (parser->tok == '(' && wasarray)
5054 parseerror(parser, "arrays as part of a return type is not supported");
5055 while (parser->tok == '(') {
5056 var = parse_parameter_list(parser, var);
5064 /* finally name it */
5066 if (!ast_value_set_name(var, name)) {
5068 parseerror(parser, "internal error: failed to set name");
5071 /* free the name, ast_value_set_name duplicates */
5078 static bool parse_typedef(parser_t *parser)
5080 ast_value *typevar, *oldtype;
5081 ast_expression *old;
5083 typevar = parse_typename(parser, NULL, NULL);
5088 if ( (old = parser_find_var(parser, typevar->name)) ) {
5089 parseerror(parser, "cannot define a type with the same name as a variable: %s\n"
5090 " -> `%s` has been declared here: %s:%i",
5091 typevar->name, ast_ctx(old).file, ast_ctx(old).line);
5092 ast_delete(typevar);
5096 if ( (oldtype = parser_find_typedef(parser, typevar->name, vec_last(parser->_blocktypedefs))) ) {
5097 parseerror(parser, "type `%s` has already been declared here: %s:%i",
5098 typevar->name, ast_ctx(oldtype).file, ast_ctx(oldtype).line);
5099 ast_delete(typevar);
5103 vec_push(parser->_typedefs, typevar);
5104 util_htset(vec_last(parser->typedefs), typevar->name, typevar);
5106 if (parser->tok != ';') {
5107 parseerror(parser, "expected semicolon after typedef");
5110 if (!parser_next(parser)) {
5111 parseerror(parser, "parse error after typedef");
5118 static const char *cvq_to_str(int cvq) {
5120 case CV_NONE: return "none";
5121 case CV_VAR: return "`var`";
5122 case CV_CONST: return "`const`";
5123 default: return "<INVALID>";
5127 static bool parser_check_qualifiers(parser_t *parser, const ast_value *var, const ast_value *proto)
5130 if (proto->cvq != var->cvq) {
5131 if (!(proto->cvq == CV_CONST && var->cvq == CV_NONE &&
5132 !OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
5133 parser->tok == '='))
5135 return !parsewarning(parser, WARN_DIFFERENT_QUALIFIERS,
5136 "`%s` declared with different qualifiers: %s\n"
5137 " -> previous declaration here: %s:%i uses %s",
5138 var->name, cvq_to_str(var->cvq),
5139 ast_ctx(proto).file, ast_ctx(proto).line,
5140 cvq_to_str(proto->cvq));
5143 av = (var ->expression.flags & AST_FLAG_NORETURN);
5144 ao = (proto->expression.flags & AST_FLAG_NORETURN);
5146 return !parsewarning(parser, WARN_DIFFERENT_ATTRIBUTES,
5147 "`%s` declared with different attributes%s\n"
5148 " -> previous declaration here: %s:%i",
5149 var->name, (av ? ": noreturn" : ""),
5150 ast_ctx(proto).file, ast_ctx(proto).line,
5151 (ao ? ": noreturn" : ""));
5156 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)
5160 ast_expression *old;
5164 ast_value *basetype = NULL;
5166 bool isparam = false;
5167 bool isvector = false;
5168 bool cleanvar = true;
5169 bool wasarray = false;
5173 if (!localblock && is_static)
5174 parseerror(parser, "`static` qualifier is not supported in global scope");
5176 /* get the first complete variable */
5177 var = parse_typename(parser, &basetype, cached_typedef);
5180 ast_delete(basetype);
5188 /* Part 0: finish the type */
5189 if (parser->tok == '(') {
5190 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
5191 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
5192 var = parse_parameter_list(parser, var);
5198 /* we only allow 1-dimensional arrays */
5199 if (parser->tok == '[') {
5201 var = parse_arraysize(parser, var);
5207 if (parser->tok == '(' && wasarray) {
5208 parseerror(parser, "arrays as part of a return type is not supported");
5209 /* we'll still parse the type completely for now */
5211 /* for functions returning functions */
5212 while (parser->tok == '(') {
5213 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
5214 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
5215 var = parse_parameter_list(parser, var);
5222 var->cvq = qualifier;
5223 var->expression.flags |= qflags;
5226 * store the vstring back to var for alias and
5227 * deprecation messages.
5229 if (var->expression.flags & AST_FLAG_DEPRECATED ||
5230 var->expression.flags & AST_FLAG_ALIAS)
5231 var->desc = vstring;
5234 * check for validity: (end_sys_..., multiple-definitions, prototypes, ...)
5235 * Also: if there was a prototype, `var` will be deleted and set to `proto` which
5236 * is then filled with the previous definition and the parameter-names replaced.
5238 if (!strcmp(var->name, "nil")) {
5239 if (OPTS_FLAG(UNTYPED_NIL)) {
5240 if (!localblock || !OPTS_FLAG(PERMISSIVE))
5241 parseerror(parser, "name `nil` not allowed (try -fpermissive)");
5243 (void)!parsewarning(parser, WARN_RESERVED_NAMES, "variable name `nil` is reserved");
5246 /* Deal with end_sys_ vars */
5248 if (!strcmp(var->name, "end_sys_globals")) {
5250 parser->crc_globals = vec_size(parser->globals);
5253 else if (!strcmp(var->name, "end_sys_fields")) {
5255 parser->crc_fields = vec_size(parser->fields);
5258 if (was_end && var->expression.vtype == TYPE_FIELD) {
5259 if (parsewarning(parser, WARN_END_SYS_FIELDS,
5260 "global '%s' hint should not be a field",
5261 parser_tokval(parser)))
5268 if (!nofields && var->expression.vtype == TYPE_FIELD)
5270 /* deal with field declarations */
5271 old = parser_find_field(parser, var->name);
5273 if (parsewarning(parser, WARN_FIELD_REDECLARED, "field `%s` already declared here: %s:%i",
5274 var->name, ast_ctx(old).file, (int)ast_ctx(old).line))
5283 parseerror(parser, "field `%s` already declared here: %s:%i",
5284 var->name, ast_ctx(old).file, ast_ctx(old).line);
5289 if ((OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC || OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_FTEQCC) &&
5290 (old = parser_find_global(parser, var->name)))
5292 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
5293 parseerror(parser, "field `%s` already declared here: %s:%i",
5294 var->name, ast_ctx(old).file, ast_ctx(old).line);
5301 /* deal with other globals */
5302 old = parser_find_global(parser, var->name);
5303 if (old && var->expression.vtype == TYPE_FUNCTION && old->expression.vtype == TYPE_FUNCTION)
5305 /* This is a function which had a prototype */
5306 if (!ast_istype(old, ast_value)) {
5307 parseerror(parser, "internal error: prototype is not an ast_value");
5311 proto = (ast_value*)old;
5312 proto->desc = var->desc;
5313 if (!ast_compare_type((ast_expression*)proto, (ast_expression*)var)) {
5314 parseerror(parser, "conflicting types for `%s`, previous declaration was here: %s:%i",
5316 ast_ctx(proto).file, ast_ctx(proto).line);
5320 /* we need the new parameter-names */
5321 for (i = 0; i < vec_size(proto->expression.params); ++i)
5322 ast_value_set_name(proto->expression.params[i], var->expression.params[i]->name);
5323 if (!parser_check_qualifiers(parser, var, proto)) {
5330 proto->expression.flags |= var->expression.flags;
5338 if (parsewarning(parser, WARN_DOUBLE_DECLARATION,
5339 "global `%s` already declared here: %s:%i",
5340 var->name, ast_ctx(old).file, ast_ctx(old).line))
5345 proto = (ast_value*)old;
5346 if (!ast_istype(old, ast_value)) {
5347 parseerror(parser, "internal error: not an ast_value");
5352 if (!parser_check_qualifiers(parser, var, proto)) {
5357 proto->expression.flags |= var->expression.flags;
5361 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC &&
5362 (old = parser_find_field(parser, var->name)))
5364 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
5365 parseerror(parser, "global `%s` already declared here: %s:%i",
5366 var->name, ast_ctx(old).file, ast_ctx(old).line);
5373 else /* it's not a global */
5375 old = parser_find_local(parser, var->name, vec_size(parser->variables)-1, &isparam);
5376 if (old && !isparam) {
5377 parseerror(parser, "local `%s` already declared here: %s:%i",
5378 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
5382 old = parser_find_local(parser, var->name, 0, &isparam);
5383 if (old && isparam) {
5384 if (parsewarning(parser, WARN_LOCAL_SHADOWS,
5385 "local `%s` is shadowing a parameter", var->name))
5387 parseerror(parser, "local `%s` already declared here: %s:%i",
5388 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
5392 if (OPTS_OPTION_U32(OPTION_STANDARD) != COMPILER_GMQCC) {
5400 /* in a noref section we simply bump the usecount */
5401 if (noref || parser->noref)
5405 * Create the global/local, and deal with vector types.
5408 if (var->expression.vtype == TYPE_VECTOR)
5410 else if (var->expression.vtype == TYPE_FIELD &&
5411 var->expression.next->expression.vtype == TYPE_VECTOR)
5415 if (!create_vector_members(var, me)) {
5422 /* deal with global variables, fields, functions */
5423 if (!nofields && var->expression.vtype == TYPE_FIELD && parser->tok != '=') {
5424 var->isfield = true;
5425 vec_push(parser->fields, (ast_expression*)var);
5426 util_htset(parser->htfields, var->name, var);
5428 for (i = 0; i < 3; ++i) {
5429 vec_push(parser->fields, (ast_expression*)me[i]);
5430 util_htset(parser->htfields, me[i]->name, me[i]);
5435 if (!(var->expression.flags & AST_FLAG_ALIAS)) {
5436 parser_addglobal(parser, var->name, (ast_expression*)var);
5438 for (i = 0; i < 3; ++i) {
5439 parser_addglobal(parser, me[i]->name, (ast_expression*)me[i]);
5443 ast_expression *find = parser_find_global(parser, var->desc);
5446 compile_error(parser_ctx(parser), "undeclared variable `%s` for alias `%s`", var->desc, var->name);
5450 if (var->expression.vtype != find->expression.vtype) {
5454 ast_type_to_string(find, ty1, sizeof(ty1));
5455 ast_type_to_string((ast_expression*)var, ty2, sizeof(ty2));
5457 compile_error(parser_ctx(parser), "incompatible types `%s` and `%s` for alias `%s`",
5464 * add alias to aliases table and to corrector
5465 * so corrections can apply for aliases as well.
5467 util_htset(parser->aliases, var->name, find);
5470 * add to corrector so corrections can work
5471 * even for aliases too.
5474 vec_last(parser->correct_variables),
5475 &vec_last(parser->correct_variables_score),
5479 /* generate aliases for vector components */
5483 util_asprintf(&buffer[0], "%s_x", var->desc);
5484 util_asprintf(&buffer[1], "%s_y", var->desc);
5485 util_asprintf(&buffer[2], "%s_z", var->desc);
5487 util_htset(parser->aliases, me[0]->name, parser_find_global(parser, buffer[0]));
5488 util_htset(parser->aliases, me[1]->name, parser_find_global(parser, buffer[1]));
5489 util_htset(parser->aliases, me[2]->name, parser_find_global(parser, buffer[2]));
5496 * add to corrector so corrections can work
5497 * even for aliases too.
5500 vec_last(parser->correct_variables),
5501 &vec_last(parser->correct_variables_score),
5505 vec_last(parser->correct_variables),
5506 &vec_last(parser->correct_variables_score),
5510 vec_last(parser->correct_variables),
5511 &vec_last(parser->correct_variables_score),
5519 /* a static adds itself to be generated like any other global
5520 * but is added to the local namespace instead
5522 char *defname = NULL;
5523 size_t prefix_len, ln;
5525 ln = strlen(parser->function->name);
5526 vec_append(defname, ln, parser->function->name);
5528 vec_append(defname, 2, "::");
5529 /* remember the length up to here */
5530 prefix_len = vec_size(defname);
5532 /* Add it to the local scope */
5533 util_htset(vec_last(parser->variables), var->name, (void*)var);
5537 vec_last(parser->correct_variables),
5538 &vec_last(parser->correct_variables_score),
5542 /* now rename the global */
5543 ln = strlen(var->name);
5544 vec_append(defname, ln, var->name);
5545 ast_value_set_name(var, defname);
5547 /* push it to the to-be-generated globals */
5548 vec_push(parser->globals, (ast_expression*)var);
5550 /* same game for the vector members */
5552 for (i = 0; i < 3; ++i) {
5553 util_htset(vec_last(parser->variables), me[i]->name, (void*)(me[i]));
5557 vec_last(parser->correct_variables),
5558 &vec_last(parser->correct_variables_score),
5562 vec_shrinkto(defname, prefix_len);
5563 ln = strlen(me[i]->name);
5564 vec_append(defname, ln, me[i]->name);
5565 ast_member_set_name(me[i], defname);
5567 vec_push(parser->globals, (ast_expression*)me[i]);
5572 vec_push(localblock->locals, var);
5573 parser_addlocal(parser, var->name, (ast_expression*)var);
5575 for (i = 0; i < 3; ++i) {
5576 parser_addlocal(parser, me[i]->name, (ast_expression*)me[i]);
5577 ast_block_collect(localblock, (ast_expression*)me[i]);
5583 me[0] = me[1] = me[2] = NULL;
5588 if (var->expression.vtype == TYPE_ARRAY) {
5590 snprintf(name, sizeof(name), "%s##SET", var->name);
5591 if (!parser_create_array_setter(parser, var, name))
5593 snprintf(name, sizeof(name), "%s##GET", var->name);
5594 if (!parser_create_array_getter(parser, var, var->expression.next, name))
5597 else if (!localblock && !nofields &&
5598 var->expression.vtype == TYPE_FIELD &&
5599 var->expression.next->expression.vtype == TYPE_ARRAY)
5602 ast_expression *telem;
5604 ast_value *array = (ast_value*)var->expression.next;
5606 if (!ast_istype(var->expression.next, ast_value)) {
5607 parseerror(parser, "internal error: field element type must be an ast_value");
5611 snprintf(name, sizeof(name), "%s##SETF", var->name);
5612 if (!parser_create_array_field_setter(parser, array, name))
5615 telem = ast_type_copy(ast_ctx(var), array->expression.next);
5616 tfield = ast_value_new(ast_ctx(var), "<.type>", TYPE_FIELD);
5617 tfield->expression.next = telem;
5618 snprintf(name, sizeof(name), "%s##GETFP", var->name);
5619 if (!parser_create_array_getter(parser, array, (ast_expression*)tfield, name)) {
5627 if (parser->tok == ';') {
5628 ast_delete(basetype);
5629 if (!parser_next(parser)) {
5630 parseerror(parser, "error after variable declaration");
5636 if (parser->tok == ',')
5640 if (!var || (!localblock && !nofields && basetype->expression.vtype == TYPE_FIELD)) {
5643 parseerror(parser, "missing comma or semicolon while parsing variables");
5647 if (localblock && OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
5648 if (parsewarning(parser, WARN_LOCAL_CONSTANTS,
5649 "initializing expression turns variable `%s` into a constant in this standard",
5656 if (parser->tok != '{') {
5657 if (parser->tok != '=') {
5658 parseerror(parser, "missing semicolon or initializer, got: `%s`", parser_tokval(parser));
5662 if (!parser_next(parser)) {
5663 parseerror(parser, "error parsing initializer");
5667 else if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
5668 parseerror(parser, "expected '=' before function body in this standard");
5671 if (parser->tok == '#') {
5672 ast_function *func = NULL;
5675 parseerror(parser, "cannot declare builtins within functions");
5678 if (var->expression.vtype != TYPE_FUNCTION) {
5679 parseerror(parser, "unexpected builtin number, '%s' is not a function", var->name);
5682 if (!parser_next(parser)) {
5683 parseerror(parser, "expected builtin number");
5686 if (parser->tok != TOKEN_INTCONST) {
5687 parseerror(parser, "builtin number must be an integer constant");
5690 if (parser_token(parser)->constval.i < 0) {
5691 parseerror(parser, "builtin number must be an integer greater than zero");
5695 if (var->hasvalue) {
5696 (void)!parsewarning(parser, WARN_DOUBLE_DECLARATION,
5697 "builtin `%s` has already been defined\n"
5698 " -> previous declaration here: %s:%i",
5699 var->name, ast_ctx(var).file, (int)ast_ctx(var).line);
5703 func = ast_function_new(ast_ctx(var), var->name, var);
5705 parseerror(parser, "failed to allocate function for `%s`", var->name);
5708 vec_push(parser->functions, func);
5710 func->builtin = -parser_token(parser)->constval.i-1;
5713 if (!parser_next(parser)) {
5714 parseerror(parser, "expected comma or semicolon");
5716 ast_function_delete(func);
5717 var->constval.vfunc = NULL;
5721 else if (parser->tok == '{' || parser->tok == '[')
5724 parseerror(parser, "cannot declare functions within functions");
5729 ast_ctx(proto) = parser_ctx(parser);
5731 if (!parse_function_body(parser, var))
5733 ast_delete(basetype);
5734 for (i = 0; i < vec_size(parser->gotos); ++i)
5735 parseerror(parser, "undefined label: `%s`", parser->gotos[i]->name);
5736 vec_free(parser->gotos);
5737 vec_free(parser->labels);
5740 ast_expression *cexp;
5743 cexp = parse_expression_leave(parser, true, false, false);
5748 cval = (ast_value*)cexp;
5749 if (cval != parser->nil &&
5750 (!ast_istype(cval, ast_value) || ((!cval->hasvalue || cval->cvq != CV_CONST) && !cval->isfield))
5753 parseerror(parser, "cannot initialize a global constant variable with a non-constant expression");
5757 if (!OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
5758 qualifier != CV_VAR)
5760 var->cvq = CV_CONST;
5762 if (cval == parser->nil)
5763 var->expression.flags |= AST_FLAG_INITIALIZED;
5766 var->hasvalue = true;
5767 if (cval->expression.vtype == TYPE_STRING)
5768 var->constval.vstring = parser_strdup(cval->constval.vstring);
5769 else if (cval->expression.vtype == TYPE_FIELD)
5770 var->constval.vfield = cval;
5772 memcpy(&var->constval, &cval->constval, sizeof(var->constval));
5778 shunt sy = { NULL, NULL, NULL, NULL };
5781 vec_push(sy.out, syexp(ast_ctx(var), (ast_expression*)var));
5782 vec_push(sy.out, syexp(ast_ctx(cexp), (ast_expression*)cexp));
5783 vec_push(sy.ops, syop(ast_ctx(var), parser->assign_op));
5784 if (!parser_sy_apply_operator(parser, &sy))
5787 if (vec_size(sy.out) != 1 && vec_size(sy.ops) != 0)
5788 parseerror(parser, "internal error: leaked operands");
5789 if (!ast_block_add_expr(localblock, (ast_expression*)sy.out[0].out))
5799 if (parser->tok == ',') {
5800 if (!parser_next(parser)) {
5801 parseerror(parser, "expected another variable");
5805 if (parser->tok != TOKEN_IDENT) {
5806 parseerror(parser, "expected another variable");
5809 var = ast_value_copy(basetype);
5811 ast_value_set_name(var, parser_tokval(parser));
5812 if (!parser_next(parser)) {
5813 parseerror(parser, "error parsing variable declaration");
5819 if (parser->tok != ';') {
5820 parseerror(parser, "missing semicolon after variables");
5824 if (!parser_next(parser)) {
5825 parseerror(parser, "parse error after variable declaration");
5829 ast_delete(basetype);
5833 if (cleanvar && var)
5835 ast_delete(basetype);
5839 ast_delete(basetype);
5840 if (cleanvar && var)
5842 if (me[0]) ast_member_delete(me[0]);
5843 if (me[1]) ast_member_delete(me[1]);
5844 if (me[2]) ast_member_delete(me[2]);
5848 static bool parser_global_statement(parser_t *parser)
5852 bool is_static = false;
5853 uint32_t qflags = 0;
5854 ast_value *istype = NULL;
5855 char *vstring = NULL;
5857 if (parser->tok == TOKEN_IDENT)
5858 istype = parser_find_typedef(parser, parser_tokval(parser), 0);
5860 if (istype || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
5862 return parse_variable(parser, NULL, false, CV_NONE, istype, false, false, 0, NULL);
5864 else if (parse_qualifiers(parser, false, &cvq, &noref, &is_static, &qflags, &vstring))
5866 if (cvq == CV_WRONG)
5868 return parse_variable(parser, NULL, true, cvq, NULL, noref, is_static, qflags, vstring);
5870 else if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "enum"))
5872 return parse_enum(parser);
5874 else if (parser->tok == TOKEN_KEYWORD)
5876 if (!strcmp(parser_tokval(parser), "typedef")) {
5877 if (!parser_next(parser)) {
5878 parseerror(parser, "expected type definition after 'typedef'");
5881 return parse_typedef(parser);
5883 parseerror(parser, "unrecognized keyword `%s`", parser_tokval(parser));
5886 else if (parser->tok == '#')
5888 return parse_pragma(parser);
5890 else if (parser->tok == '$')
5892 if (!parser_next(parser)) {
5893 parseerror(parser, "parse error");
5899 parseerror(parser, "unexpected token: `%s`", parser->lex->tok.value);
5905 static uint16_t progdefs_crc_sum(uint16_t old, const char *str)
5907 return util_crc16(old, str, strlen(str));
5910 static void progdefs_crc_file(const char *str)
5912 /* write to progdefs.h here */
5916 static uint16_t progdefs_crc_both(uint16_t old, const char *str)
5918 old = progdefs_crc_sum(old, str);
5919 progdefs_crc_file(str);
5923 static void generate_checksum(parser_t *parser)
5925 uint16_t crc = 0xFFFF;
5929 crc = progdefs_crc_both(crc, "\n/* file generated by qcc, do not modify */\n\ntypedef struct\n{");
5930 crc = progdefs_crc_sum(crc, "\tint\tpad[28];\n");
5932 progdefs_crc_file("\tint\tpad;\n");
5933 progdefs_crc_file("\tint\tofs_return[3];\n");
5934 progdefs_crc_file("\tint\tofs_parm0[3];\n");
5935 progdefs_crc_file("\tint\tofs_parm1[3];\n");
5936 progdefs_crc_file("\tint\tofs_parm2[3];\n");
5937 progdefs_crc_file("\tint\tofs_parm3[3];\n");
5938 progdefs_crc_file("\tint\tofs_parm4[3];\n");
5939 progdefs_crc_file("\tint\tofs_parm5[3];\n");
5940 progdefs_crc_file("\tint\tofs_parm6[3];\n");
5941 progdefs_crc_file("\tint\tofs_parm7[3];\n");
5943 for (i = 0; i < parser->crc_globals; ++i) {
5944 if (!ast_istype(parser->globals[i], ast_value))
5946 value = (ast_value*)(parser->globals[i]);
5947 switch (value->expression.vtype) {
5948 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
5949 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
5950 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
5951 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
5953 crc = progdefs_crc_both(crc, "\tint\t");
5956 crc = progdefs_crc_both(crc, value->name);
5957 crc = progdefs_crc_both(crc, ";\n");
5959 crc = progdefs_crc_both(crc, "} globalvars_t;\n\ntypedef struct\n{\n");
5960 for (i = 0; i < parser->crc_fields; ++i) {
5961 if (!ast_istype(parser->fields[i], ast_value))
5963 value = (ast_value*)(parser->fields[i]);
5964 switch (value->expression.next->expression.vtype) {
5965 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
5966 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
5967 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
5968 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
5970 crc = progdefs_crc_both(crc, "\tint\t");
5973 crc = progdefs_crc_both(crc, value->name);
5974 crc = progdefs_crc_both(crc, ";\n");
5976 crc = progdefs_crc_both(crc, "} entvars_t;\n\n");
5981 static parser_t *parser;
5988 parser = (parser_t*)mem_a(sizeof(parser_t));
5992 memset(parser, 0, sizeof(*parser));
5994 for (i = 0; i < operator_count; ++i) {
5995 if (operators[i].id == opid1('=')) {
5996 parser->assign_op = operators+i;
6000 if (!parser->assign_op) {
6001 printf("internal error: initializing parser: failed to find assign operator\n");
6006 vec_push(parser->variables, parser->htfields = util_htnew(PARSER_HT_SIZE));
6007 vec_push(parser->variables, parser->htglobals = util_htnew(PARSER_HT_SIZE));
6008 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
6009 vec_push(parser->_blocktypedefs, 0);
6011 parser->aliases = util_htnew(PARSER_HT_SIZE);
6014 vec_push(parser->correct_variables, correct_trie_new());
6015 vec_push(parser->correct_variables_score, NULL);
6017 empty_ctx.file = "<internal>";
6019 parser->nil = ast_value_new(empty_ctx, "nil", TYPE_NIL);
6020 parser->nil->cvq = CV_CONST;
6021 if (OPTS_FLAG(UNTYPED_NIL))
6022 util_htset(parser->htglobals, "nil", (void*)parser->nil);
6024 parser->max_param_count = 1;
6026 parser->const_vec[0] = ast_value_new(empty_ctx, "<vector.x>", TYPE_NOEXPR);
6027 parser->const_vec[1] = ast_value_new(empty_ctx, "<vector.y>", TYPE_NOEXPR);
6028 parser->const_vec[2] = ast_value_new(empty_ctx, "<vector.z>", TYPE_NOEXPR);
6030 if (OPTS_OPTION_BOOL(OPTION_ADD_INFO)) {
6031 parser->reserved_version = ast_value_new(empty_ctx, "reserved:version", TYPE_STRING);
6032 parser->reserved_version->cvq = CV_CONST;
6033 parser->reserved_version->hasvalue = true;
6034 parser->reserved_version->expression.flags |= AST_FLAG_INCLUDE_DEF;
6035 parser->reserved_version->constval.vstring = util_strdup(GMQCC_FULL_VERSION_STRING);
6037 parser->reserved_version = NULL;
6042 bool parser_compile()
6044 /* initial lexer/parser state */
6045 parser->lex->flags.noops = true;
6047 if (parser_next(parser))
6049 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
6051 if (!parser_global_statement(parser)) {
6052 if (parser->tok == TOKEN_EOF)
6053 parseerror(parser, "unexpected eof");
6054 else if (compile_errors)
6055 parseerror(parser, "there have been errors, bailing out");
6056 lex_close(parser->lex);
6062 parseerror(parser, "parse error");
6063 lex_close(parser->lex);
6068 lex_close(parser->lex);
6071 return !compile_errors;
6074 bool parser_compile_file(const char *filename)
6076 parser->lex = lex_open(filename);
6078 con_err("failed to open file \"%s\"\n", filename);
6081 return parser_compile();
6084 bool parser_compile_string(const char *name, const char *str, size_t len)
6086 parser->lex = lex_open_string(str, len, name);
6088 con_err("failed to create lexer for string \"%s\"\n", name);
6091 return parser_compile();
6094 void parser_cleanup()
6097 for (i = 0; i < vec_size(parser->accessors); ++i) {
6098 ast_delete(parser->accessors[i]->constval.vfunc);
6099 parser->accessors[i]->constval.vfunc = NULL;
6100 ast_delete(parser->accessors[i]);
6102 for (i = 0; i < vec_size(parser->functions); ++i) {
6103 ast_delete(parser->functions[i]);
6105 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
6106 ast_delete(parser->imm_vector[i]);
6108 for (i = 0; i < vec_size(parser->imm_string); ++i) {
6109 ast_delete(parser->imm_string[i]);
6111 for (i = 0; i < vec_size(parser->imm_float); ++i) {
6112 ast_delete(parser->imm_float[i]);
6114 for (i = 0; i < vec_size(parser->fields); ++i) {
6115 ast_delete(parser->fields[i]);
6117 for (i = 0; i < vec_size(parser->globals); ++i) {
6118 ast_delete(parser->globals[i]);
6120 vec_free(parser->accessors);
6121 vec_free(parser->functions);
6122 vec_free(parser->imm_vector);
6123 vec_free(parser->imm_string);
6124 vec_free(parser->imm_float);
6125 vec_free(parser->globals);
6126 vec_free(parser->fields);
6128 for (i = 0; i < vec_size(parser->variables); ++i)
6129 util_htdel(parser->variables[i]);
6130 vec_free(parser->variables);
6131 vec_free(parser->_blocklocals);
6132 vec_free(parser->_locals);
6135 for (i = 0; i < vec_size(parser->correct_variables); ++i) {
6136 correct_del(parser->correct_variables[i], parser->correct_variables_score[i]);
6138 vec_free(parser->correct_variables);
6139 vec_free(parser->correct_variables_score);
6142 for (i = 0; i < vec_size(parser->_typedefs); ++i)
6143 ast_delete(parser->_typedefs[i]);
6144 vec_free(parser->_typedefs);
6145 for (i = 0; i < vec_size(parser->typedefs); ++i)
6146 util_htdel(parser->typedefs[i]);
6147 vec_free(parser->typedefs);
6148 vec_free(parser->_blocktypedefs);
6150 vec_free(parser->_block_ctx);
6152 vec_free(parser->labels);
6153 vec_free(parser->gotos);
6154 vec_free(parser->breaks);
6155 vec_free(parser->continues);
6157 ast_value_delete(parser->nil);
6159 ast_value_delete(parser->const_vec[0]);
6160 ast_value_delete(parser->const_vec[1]);
6161 ast_value_delete(parser->const_vec[2]);
6163 util_htdel(parser->aliases);
6168 bool parser_finish(const char *output)
6174 if (compile_errors) {
6175 con_out("*** there were compile errors\n");
6179 ir = ir_builder_new("gmqcc_out");
6181 con_out("failed to allocate builder\n");
6185 for (i = 0; i < vec_size(parser->fields); ++i) {
6188 if (!ast_istype(parser->fields[i], ast_value))
6190 field = (ast_value*)parser->fields[i];
6191 hasvalue = field->hasvalue;
6192 field->hasvalue = false;
6193 if (!ast_global_codegen((ast_value*)field, ir, true)) {
6194 con_out("failed to generate field %s\n", field->name);
6195 ir_builder_delete(ir);
6200 ast_expression *subtype;
6201 field->hasvalue = true;
6202 subtype = field->expression.next;
6203 ifld = ir_builder_create_field(ir, field->name, subtype->expression.vtype);
6204 if (subtype->expression.vtype == TYPE_FIELD)
6205 ifld->fieldtype = subtype->expression.next->expression.vtype;
6206 else if (subtype->expression.vtype == TYPE_FUNCTION)
6207 ifld->outtype = subtype->expression.next->expression.vtype;
6208 (void)!ir_value_set_field(field->ir_v, ifld);
6211 for (i = 0; i < vec_size(parser->globals); ++i) {
6213 if (!ast_istype(parser->globals[i], ast_value))
6215 asvalue = (ast_value*)(parser->globals[i]);
6216 if (!asvalue->uses && !asvalue->hasvalue && asvalue->expression.vtype != TYPE_FUNCTION) {
6217 retval = retval && !compile_warning(ast_ctx(asvalue), WARN_UNUSED_VARIABLE,
6218 "unused global: `%s`", asvalue->name);
6220 if (!ast_global_codegen(asvalue, ir, false)) {
6221 con_out("failed to generate global %s\n", asvalue->name);
6222 ir_builder_delete(ir);
6226 /* Build function vararg accessor ast tree now before generating
6227 * immediates, because the accessors may add new immediates
6229 for (i = 0; i < vec_size(parser->functions); ++i) {
6230 ast_function *f = parser->functions[i];
6232 if (parser->max_param_count > vec_size(f->vtype->expression.params)) {
6233 f->varargs->expression.count = parser->max_param_count - vec_size(f->vtype->expression.params);
6234 if (!parser_create_array_setter_impl(parser, f->varargs)) {
6235 con_out("failed to generate vararg setter for %s\n", f->name);
6236 ir_builder_delete(ir);
6239 if (!parser_create_array_getter_impl(parser, f->varargs)) {
6240 con_out("failed to generate vararg getter for %s\n", f->name);
6241 ir_builder_delete(ir);
6245 ast_delete(f->varargs);
6250 /* Now we can generate immediates */
6251 for (i = 0; i < vec_size(parser->imm_float); ++i) {
6252 if (!ast_global_codegen(parser->imm_float[i], ir, false)) {
6253 con_out("failed to generate global %s\n", parser->imm_float[i]->name);
6254 ir_builder_delete(ir);
6258 for (i = 0; i < vec_size(parser->imm_string); ++i) {
6259 if (!ast_global_codegen(parser->imm_string[i], ir, false)) {
6260 con_out("failed to generate global %s\n", parser->imm_string[i]->name);
6261 ir_builder_delete(ir);
6265 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
6266 if (!ast_global_codegen(parser->imm_vector[i], ir, false)) {
6267 con_out("failed to generate global %s\n", parser->imm_vector[i]->name);
6268 ir_builder_delete(ir);
6272 for (i = 0; i < vec_size(parser->globals); ++i) {
6274 if (!ast_istype(parser->globals[i], ast_value))
6276 asvalue = (ast_value*)(parser->globals[i]);
6277 if (!(asvalue->expression.flags & AST_FLAG_INITIALIZED))
6279 if (asvalue->cvq == CV_CONST && !asvalue->hasvalue)
6280 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_CONSTANT,
6281 "uninitialized constant: `%s`",
6283 else if ((asvalue->cvq == CV_NONE || asvalue->cvq == CV_CONST) && !asvalue->hasvalue)
6284 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_GLOBAL,
6285 "uninitialized global: `%s`",
6288 if (!ast_generate_accessors(asvalue, ir)) {
6289 ir_builder_delete(ir);
6293 for (i = 0; i < vec_size(parser->fields); ++i) {
6295 asvalue = (ast_value*)(parser->fields[i]->expression.next);
6297 if (!ast_istype((ast_expression*)asvalue, ast_value))
6299 if (asvalue->expression.vtype != TYPE_ARRAY)
6301 if (!ast_generate_accessors(asvalue, ir)) {
6302 ir_builder_delete(ir);
6306 if (parser->reserved_version &&
6307 !ast_global_codegen(parser->reserved_version, ir, false))
6309 con_out("failed to generate reserved::version");
6310 ir_builder_delete(ir);
6313 for (i = 0; i < vec_size(parser->functions); ++i) {
6314 ast_function *f = parser->functions[i];
6315 if (!ast_function_codegen(f, ir)) {
6316 con_out("failed to generate function %s\n", f->name);
6317 ir_builder_delete(ir);
6321 if (OPTS_OPTION_BOOL(OPTION_DUMP))
6322 ir_builder_dump(ir, con_out);
6323 for (i = 0; i < vec_size(parser->functions); ++i) {
6324 if (!ir_function_finalize(parser->functions[i]->ir_func)) {
6325 con_out("failed to finalize function %s\n", parser->functions[i]->name);
6326 ir_builder_delete(ir);
6331 if (compile_Werrors) {
6332 con_out("*** there were warnings treated as errors\n");
6333 compile_show_werrors();
6338 if (OPTS_OPTION_BOOL(OPTION_DUMPFIN))
6339 ir_builder_dump(ir, con_out);
6341 generate_checksum(parser);
6343 if (!ir_builder_generate(ir, output)) {
6344 con_out("*** failed to generate output file\n");
6345 ir_builder_delete(ir);
6350 ir_builder_delete(ir);