2 * Copyright (C) 2012, 2013
6 * Permission is hereby granted, free of charge, to any person obtaining a copy of
7 * this software and associated documentation files (the "Software"), to deal in
8 * the Software without restriction, including without limitation the rights to
9 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
10 * of the Software, and to permit persons to whom the Software is furnished to do
11 * so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31 /* beginning of locals */
32 #define PARSER_HT_LOCALS 2
34 #define PARSER_HT_SIZE 128
35 #define TYPEDEF_HT_SIZE 16
41 ast_expression **globals;
42 ast_expression **fields;
43 ast_function **functions;
44 ast_value **imm_float;
45 ast_value **imm_string;
46 ast_value **imm_vector;
49 /* must be deleted first, they reference immediates and values */
50 ast_value **accessors;
52 ast_value *imm_float_zero;
53 ast_value *imm_float_one;
54 ast_value *imm_float_neg_one;
56 ast_value *imm_vector_zero;
59 ast_value *reserved_version;
64 ast_function *function;
67 /* All the labels the function defined...
68 * Should they be in ast_function instead?
73 const char **continues;
75 /* A list of hashtables for each scope */
81 /* same as above but for the spelling corrector */
82 correct_trie_t **correct_variables;
83 size_t ***correct_variables_score; /* vector of vector of size_t* */
85 /* not to be used directly, we use the hash table */
86 ast_expression **_locals;
88 ast_value **_typedefs;
89 size_t *_blocktypedefs;
92 /* we store the '=' operator info */
93 const oper_info *assign_op;
96 ast_value *const_vec[3];
101 /* collected information */
102 size_t max_param_count;
105 static ast_expression * const intrinsic_debug_typestring = (ast_expression*)0x1;
107 static void parser_enterblock(parser_t *parser);
108 static bool parser_leaveblock(parser_t *parser);
109 static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e);
110 static void parser_addglobal(parser_t *parser, const char *name, ast_expression *e);
111 static bool parse_typedef(parser_t *parser);
112 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);
113 static ast_block* parse_block(parser_t *parser);
114 static bool parse_block_into(parser_t *parser, ast_block *block);
115 static bool parse_statement_or_block(parser_t *parser, ast_expression **out);
116 static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases);
117 static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels);
118 static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels);
119 static ast_value* parser_create_array_setter_proto(parser_t *parser, ast_value *array, const char *funcname);
120 static ast_value* parser_create_array_getter_proto(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname);
121 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
123 static void parseerror(parser_t *parser, const char *fmt, ...)
127 vcompile_error(parser->lex->tok.ctx, fmt, ap);
131 /* returns true if it counts as an error */
132 static bool GMQCC_WARN parsewarning(parser_t *parser, int warntype, const char *fmt, ...)
137 r = vcompile_warning(parser->lex->tok.ctx, warntype, fmt, ap);
142 /**********************************************************************
143 * some maths used for constant folding
146 vector vec3_add(vector a, vector b)
155 vector vec3_sub(vector a, vector b)
164 qcfloat vec3_mulvv(vector a, vector b)
166 return (a.x * b.x + a.y * b.y + a.z * b.z);
169 vector vec3_mulvf(vector a, float b)
178 /**********************************************************************
182 bool parser_next(parser_t *parser)
184 /* lex_do kills the previous token */
185 parser->tok = lex_do(parser->lex);
186 if (parser->tok == TOKEN_EOF)
188 if (parser->tok >= TOKEN_ERROR) {
189 parseerror(parser, "lex error");
195 #define parser_tokval(p) ((p)->lex->tok.value)
196 #define parser_token(p) (&((p)->lex->tok))
197 #define parser_ctx(p) ((p)->lex->tok.ctx)
199 static ast_value* parser_const_float(parser_t *parser, double d)
204 for (i = 0; i < vec_size(parser->imm_float); ++i) {
205 const double compare = parser->imm_float[i]->constval.vfloat;
206 if (memcmp((const void*)&compare, (const void *)&d, sizeof(double)) == 0)
207 return parser->imm_float[i];
210 ctx = parser_ctx(parser);
212 memset(&ctx, 0, sizeof(ctx));
214 out = ast_value_new(ctx, "#IMMEDIATE", TYPE_FLOAT);
216 out->hasvalue = true;
217 out->constval.vfloat = d;
218 vec_push(parser->imm_float, out);
222 static ast_value* parser_const_float_0(parser_t *parser)
224 if (!parser->imm_float_zero)
225 parser->imm_float_zero = parser_const_float(parser, 0);
226 return parser->imm_float_zero;
229 static ast_value* parser_const_float_neg1(parser_t *parser) {
230 if (!parser->imm_float_neg_one)
231 parser->imm_float_neg_one = parser_const_float(parser, -1);
232 return parser->imm_float_neg_one;
235 static ast_value* parser_const_float_1(parser_t *parser)
237 if (!parser->imm_float_one)
238 parser->imm_float_one = parser_const_float(parser, 1);
239 return parser->imm_float_one;
242 static char *parser_strdup(const char *str)
245 /* actually dup empty strings */
246 char *out = (char*)mem_a(1);
250 return util_strdup(str);
253 static ast_value* parser_const_string(parser_t *parser, const char *str, bool dotranslate)
257 for (i = 0; i < vec_size(parser->imm_string); ++i) {
258 if (!strcmp(parser->imm_string[i]->constval.vstring, str))
259 return parser->imm_string[i];
263 snprintf(name, sizeof(name), "dotranslate_%lu", (unsigned long)(parser->translated++));
264 out = ast_value_new(parser_ctx(parser), name, TYPE_STRING);
266 out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_STRING);
268 out->hasvalue = true;
269 out->constval.vstring = parser_strdup(str);
270 vec_push(parser->imm_string, out);
274 static ast_value* parser_const_vector(parser_t *parser, vector v)
278 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
279 if (!memcmp(&parser->imm_vector[i]->constval.vvec, &v, sizeof(v)))
280 return parser->imm_vector[i];
282 out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_VECTOR);
284 out->hasvalue = true;
285 out->constval.vvec = v;
286 vec_push(parser->imm_vector, out);
290 static ast_value* parser_const_vector_f(parser_t *parser, float x, float y, float z)
296 return parser_const_vector(parser, v);
299 static ast_value* parser_const_vector_0(parser_t *parser)
301 if (!parser->imm_vector_zero)
302 parser->imm_vector_zero = parser_const_vector_f(parser, 0, 0, 0);
303 return parser->imm_vector_zero;
306 static ast_expression* parser_find_field(parser_t *parser, const char *name)
308 return ( ast_expression*)util_htget(parser->htfields, name);
311 static ast_expression* parser_find_label(parser_t *parser, const char *name)
314 for(i = 0; i < vec_size(parser->labels); i++)
315 if (!strcmp(parser->labels[i]->name, name))
316 return (ast_expression*)parser->labels[i];
320 static ast_expression* parser_find_global(parser_t *parser, const char *name)
322 return (ast_expression*)util_htget(parser->htglobals, name);
325 static ast_expression* parser_find_param(parser_t *parser, const char *name)
329 if (!parser->function)
331 fun = parser->function->vtype;
332 for (i = 0; i < vec_size(fun->expression.params); ++i) {
333 if (!strcmp(fun->expression.params[i]->name, name))
334 return (ast_expression*)(fun->expression.params[i]);
339 static ast_expression* parser_find_local(parser_t *parser, const char *name, size_t upto, bool *isparam)
344 hash = util_hthash(parser->htglobals, name);
347 for (i = vec_size(parser->variables); i > upto;) {
349 if ( (e = (ast_expression*)util_htgeth(parser->variables[i], name, hash)) )
353 return parser_find_param(parser, name);
356 static ast_expression* parser_find_var(parser_t *parser, const char *name)
360 v = parser_find_local(parser, name, 0, &dummy);
361 if (!v) v = parser_find_global(parser, name);
365 static ast_value* parser_find_typedef(parser_t *parser, const char *name, size_t upto)
369 hash = util_hthash(parser->typedefs[0], name);
371 for (i = vec_size(parser->typedefs); i > upto;) {
373 if ( (e = (ast_value*)util_htgeth(parser->typedefs[i], name, hash)) )
381 size_t etype; /* 0 = expression, others are operators */
385 ast_block *block; /* for commas and function calls */
404 static sy_elem syexp(lex_ctx ctx, ast_expression *v) {
415 static sy_elem syblock(lex_ctx ctx, ast_block *v) {
419 e.out = (ast_expression*)v;
426 static sy_elem syop(lex_ctx ctx, const oper_info *op) {
428 e.etype = 1 + (op - operators);
437 static sy_elem syparen(lex_ctx ctx, size_t off) {
448 /* With regular precedence rules, ent.foo[n] is the same as (ent.foo)[n],
449 * so we need to rotate it to become ent.(foo[n]).
451 static bool rotate_entfield_array_index_nodes(ast_expression **out)
453 ast_array_index *index, *oldindex;
454 ast_entfield *entfield;
458 ast_expression *entity;
460 lex_ctx ctx = ast_ctx(*out);
462 if (!ast_istype(*out, ast_array_index))
464 index = (ast_array_index*)*out;
466 if (!ast_istype(index->array, ast_entfield))
468 entfield = (ast_entfield*)index->array;
470 if (!ast_istype(entfield->field, ast_value))
472 field = (ast_value*)entfield->field;
475 entity = entfield->entity;
479 index = ast_array_index_new(ctx, (ast_expression*)field, sub);
480 entfield = ast_entfield_new(ctx, entity, (ast_expression*)index);
481 *out = (ast_expression*)entfield;
483 oldindex->array = NULL;
484 oldindex->index = NULL;
485 ast_delete(oldindex);
490 static bool immediate_is_true(lex_ctx ctx, ast_value *v)
492 switch (v->expression.vtype) {
494 return !!v->constval.vfloat;
496 return !!v->constval.vint;
498 if (OPTS_FLAG(CORRECT_LOGIC))
499 return v->constval.vvec.x &&
500 v->constval.vvec.y &&
503 return !!(v->constval.vvec.x);
505 if (!v->constval.vstring)
507 if (v->constval.vstring && OPTS_FLAG(TRUE_EMPTY_STRINGS))
509 return !!v->constval.vstring[0];
511 compile_error(ctx, "internal error: immediate_is_true on invalid type");
512 return !!v->constval.vfunc;
516 static bool parser_sy_apply_operator(parser_t *parser, shunt *sy)
520 ast_expression *out = NULL;
521 ast_expression *exprs[3];
522 ast_block *blocks[3];
523 ast_value *asvalue[3];
524 ast_binstore *asbinstore;
525 size_t i, assignop, addop, subop;
526 qcint generated_op = 0;
531 if (!vec_size(sy->ops)) {
532 parseerror(parser, "internal error: missing operator");
536 if (vec_last(sy->ops).isparen) {
537 parseerror(parser, "unmatched parenthesis");
541 op = &operators[vec_last(sy->ops).etype - 1];
542 ctx = vec_last(sy->ops).ctx;
544 if (vec_size(sy->out) < op->operands) {
545 compile_error(ctx, "internal error: not enough operands: %i (operator %s (%i))", vec_size(sy->out),
546 op->op, (int)op->id);
550 vec_shrinkby(sy->ops, 1);
552 /* op(:?) has no input and no output */
556 vec_shrinkby(sy->out, op->operands);
557 for (i = 0; i < op->operands; ++i) {
558 exprs[i] = sy->out[vec_size(sy->out)+i].out;
559 blocks[i] = sy->out[vec_size(sy->out)+i].block;
560 asvalue[i] = (ast_value*)exprs[i];
562 if (exprs[i]->expression.vtype == TYPE_NOEXPR &&
563 !(i != 0 && op->id == opid2('?',':')) &&
564 !(i == 1 && op->id == opid1('.')))
566 if (ast_istype(exprs[i], ast_label))
567 compile_error(ast_ctx(exprs[i]), "expected expression, got an unknown identifier");
569 compile_error(ast_ctx(exprs[i]), "not an expression");
570 (void)!compile_warning(ast_ctx(exprs[i]), WARN_DEBUG, "expression %u\n", (unsigned int)i);
574 if (blocks[0] && !vec_size(blocks[0]->exprs) && op->id != opid1(',')) {
575 compile_error(ctx, "internal error: operator cannot be applied on empty blocks");
579 #define NotSameType(T) \
580 (exprs[0]->expression.vtype != exprs[1]->expression.vtype || \
581 exprs[0]->expression.vtype != T)
582 #define CanConstFold1(A) \
583 (ast_istype((A), ast_value) && ((ast_value*)(A))->hasvalue && (((ast_value*)(A))->cvq == CV_CONST) &&\
584 (A)->expression.vtype != TYPE_FUNCTION)
585 #define CanConstFold(A, B) \
586 (CanConstFold1(A) && CanConstFold1(B))
587 #define ConstV(i) (asvalue[(i)]->constval.vvec)
588 #define ConstF(i) (asvalue[(i)]->constval.vfloat)
589 #define ConstS(i) (asvalue[(i)]->constval.vstring)
593 compile_error(ctx, "internal error: unhandled operator: %s (%i)", op->op, (int)op->id);
597 if (exprs[0]->expression.vtype == TYPE_VECTOR &&
598 exprs[1]->expression.vtype == TYPE_NOEXPR)
600 if (exprs[1] == (ast_expression*)parser->const_vec[0])
601 out = (ast_expression*)ast_member_new(ctx, exprs[0], 0, NULL);
602 else if (exprs[1] == (ast_expression*)parser->const_vec[1])
603 out = (ast_expression*)ast_member_new(ctx, exprs[0], 1, NULL);
604 else if (exprs[1] == (ast_expression*)parser->const_vec[2])
605 out = (ast_expression*)ast_member_new(ctx, exprs[0], 2, NULL);
607 compile_error(ctx, "access to invalid vector component");
611 else if (exprs[0]->expression.vtype == TYPE_ENTITY) {
612 if (exprs[1]->expression.vtype != TYPE_FIELD) {
613 compile_error(ast_ctx(exprs[1]), "type error: right hand of member-operand should be an entity-field");
616 out = (ast_expression*)ast_entfield_new(ctx, exprs[0], exprs[1]);
618 else if (exprs[0]->expression.vtype == TYPE_VECTOR) {
619 compile_error(ast_ctx(exprs[1]), "vectors cannot be accessed this way");
623 compile_error(ast_ctx(exprs[1]), "type error: member-of operator on something that is not an entity or vector");
629 if (exprs[0]->expression.vtype != TYPE_ARRAY &&
630 !(exprs[0]->expression.vtype == TYPE_FIELD &&
631 exprs[0]->expression.next->expression.vtype == TYPE_ARRAY))
633 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
634 compile_error(ast_ctx(exprs[0]), "cannot index value of type %s", ty1);
637 if (exprs[1]->expression.vtype != TYPE_FLOAT) {
638 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
639 compile_error(ast_ctx(exprs[1]), "index must be of type float, not %s", ty1);
642 out = (ast_expression*)ast_array_index_new(ctx, exprs[0], exprs[1]);
643 if (rotate_entfield_array_index_nodes(&out))
646 /* This is not broken in fteqcc anymore */
647 if (OPTS_OPTION_U32(OPTION_STANDARD) != COMPILER_GMQCC) {
648 /* this error doesn't need to make us bail out */
649 (void)!parsewarning(parser, WARN_EXTENSIONS,
650 "accessing array-field members of an entity without parenthesis\n"
651 " -> this is an extension from -std=gmqcc");
658 if (vec_size(sy->paren) && vec_last(sy->paren) == PAREN_FUNC) {
659 vec_push(sy->out, syexp(ctx, exprs[0]));
660 vec_push(sy->out, syexp(ctx, exprs[1]));
661 vec_last(sy->argc)++;
665 if (!ast_block_add_expr(blocks[0], exprs[1]))
668 blocks[0] = ast_block_new(ctx);
669 if (!ast_block_add_expr(blocks[0], exprs[0]) ||
670 !ast_block_add_expr(blocks[0], exprs[1]))
675 ast_block_set_type(blocks[0], exprs[1]);
677 vec_push(sy->out, syblock(ctx, blocks[0]));
684 switch (exprs[0]->expression.vtype) {
686 if (CanConstFold1(exprs[0]))
687 out = (ast_expression*)parser_const_float(parser, -ConstF(0));
689 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F,
690 (ast_expression*)parser_const_float_0(parser),
694 if (CanConstFold1(exprs[0]))
695 out = (ast_expression*)parser_const_vector_f(parser,
696 -ConstV(0).x, -ConstV(0).y, -ConstV(0).z);
698 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V,
699 (ast_expression*)parser_const_vector_0(parser),
703 compile_error(ctx, "invalid types used in expression: cannot negate type %s",
704 type_name[exprs[0]->expression.vtype]);
710 switch (exprs[0]->expression.vtype) {
712 if (CanConstFold1(exprs[0]))
713 out = (ast_expression*)parser_const_float(parser, !ConstF(0));
715 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
718 if (CanConstFold1(exprs[0]))
719 out = (ast_expression*)parser_const_float(parser,
720 (!ConstV(0).x && !ConstV(0).y && !ConstV(0).z));
722 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[0]);
725 if (CanConstFold1(exprs[0])) {
726 if (OPTS_FLAG(TRUE_EMPTY_STRINGS))
727 out = (ast_expression*)parser_const_float(parser, !ConstS(0));
729 out = (ast_expression*)parser_const_float(parser, !ConstS(0) || !*ConstS(0));
731 if (OPTS_FLAG(TRUE_EMPTY_STRINGS))
732 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
734 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[0]);
737 /* we don't constant-fold NOT for these types */
739 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_ENT, exprs[0]);
742 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_FNC, exprs[0]);
745 compile_error(ctx, "invalid types used in expression: cannot logically negate type %s",
746 type_name[exprs[0]->expression.vtype]);
752 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
753 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
755 compile_error(ctx, "invalid types used in expression: cannot add type %s and %s",
756 type_name[exprs[0]->expression.vtype],
757 type_name[exprs[1]->expression.vtype]);
760 switch (exprs[0]->expression.vtype) {
762 if (CanConstFold(exprs[0], exprs[1]))
764 out = (ast_expression*)parser_const_float(parser, ConstF(0) + ConstF(1));
767 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F, exprs[0], exprs[1]);
770 if (CanConstFold(exprs[0], exprs[1]))
771 out = (ast_expression*)parser_const_vector(parser, vec3_add(ConstV(0), ConstV(1)));
773 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_V, exprs[0], exprs[1]);
776 compile_error(ctx, "invalid types used in expression: cannot add type %s and %s",
777 type_name[exprs[0]->expression.vtype],
778 type_name[exprs[1]->expression.vtype]);
783 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
784 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
786 compile_error(ctx, "invalid types used in expression: cannot subtract type %s from %s",
787 type_name[exprs[1]->expression.vtype],
788 type_name[exprs[0]->expression.vtype]);
791 switch (exprs[0]->expression.vtype) {
793 if (CanConstFold(exprs[0], exprs[1]))
794 out = (ast_expression*)parser_const_float(parser, ConstF(0) - ConstF(1));
796 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F, exprs[0], exprs[1]);
799 if (CanConstFold(exprs[0], exprs[1]))
800 out = (ast_expression*)parser_const_vector(parser, vec3_sub(ConstV(0), ConstV(1)));
802 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V, exprs[0], exprs[1]);
805 compile_error(ctx, "invalid types used in expression: cannot subtract type %s from %s",
806 type_name[exprs[1]->expression.vtype],
807 type_name[exprs[0]->expression.vtype]);
812 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype &&
813 !(exprs[0]->expression.vtype == TYPE_VECTOR &&
814 exprs[1]->expression.vtype == TYPE_FLOAT) &&
815 !(exprs[1]->expression.vtype == TYPE_VECTOR &&
816 exprs[0]->expression.vtype == TYPE_FLOAT)
819 compile_error(ctx, "invalid types used in expression: cannot multiply types %s and %s",
820 type_name[exprs[1]->expression.vtype],
821 type_name[exprs[0]->expression.vtype]);
824 switch (exprs[0]->expression.vtype) {
826 if (exprs[1]->expression.vtype == TYPE_VECTOR)
828 if (CanConstFold(exprs[0], exprs[1]))
829 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(1), ConstF(0)));
831 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_FV, exprs[0], exprs[1]);
835 if (CanConstFold(exprs[0], exprs[1]))
836 out = (ast_expression*)parser_const_float(parser, ConstF(0) * ConstF(1));
838 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, exprs[0], exprs[1]);
842 if (exprs[1]->expression.vtype == TYPE_FLOAT)
844 if (CanConstFold(exprs[0], exprs[1]))
845 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(0), ConstF(1)));
847 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_VF, exprs[0], exprs[1]);
851 if (CanConstFold(exprs[0], exprs[1]))
852 out = (ast_expression*)parser_const_float(parser, vec3_mulvv(ConstV(0), ConstV(1)));
853 else if (OPTS_OPTIMIZATION(OPTIM_VECTOR_COMPONENTS) && CanConstFold1(exprs[0])) {
854 vector vec = ConstV(0);
855 if (!vec.y && !vec.z) { /* 'n 0 0' * v */
856 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
857 out = (ast_expression*)ast_member_new(ctx, exprs[1], 0, NULL);
858 out->expression.node.keep = false;
859 ((ast_member*)out)->rvalue = true;
861 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.x), out);
863 else if (!vec.x && !vec.z) { /* '0 n 0' * v */
864 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
865 out = (ast_expression*)ast_member_new(ctx, exprs[1], 1, NULL);
866 out->expression.node.keep = false;
867 ((ast_member*)out)->rvalue = true;
869 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.y), out);
871 else if (!vec.x && !vec.y) { /* '0 n 0' * v */
872 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
873 out = (ast_expression*)ast_member_new(ctx, exprs[1], 2, NULL);
874 out->expression.node.keep = false;
875 ((ast_member*)out)->rvalue = true;
877 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.z), out);
880 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
882 else if (OPTS_OPTIMIZATION(OPTIM_VECTOR_COMPONENTS) && CanConstFold1(exprs[1])) {
883 vector vec = ConstV(1);
884 if (!vec.y && !vec.z) { /* v * 'n 0 0' */
885 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
886 out = (ast_expression*)ast_member_new(ctx, exprs[0], 0, NULL);
887 out->expression.node.keep = false;
888 ((ast_member*)out)->rvalue = true;
890 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.x));
892 else if (!vec.x && !vec.z) { /* v * '0 n 0' */
893 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
894 out = (ast_expression*)ast_member_new(ctx, exprs[0], 1, NULL);
895 out->expression.node.keep = false;
896 ((ast_member*)out)->rvalue = true;
898 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.y));
900 else if (!vec.x && !vec.y) { /* v * '0 n 0' */
901 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
902 out = (ast_expression*)ast_member_new(ctx, exprs[0], 2, NULL);
903 out->expression.node.keep = false;
904 ((ast_member*)out)->rvalue = true;
906 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.z));
909 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
912 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
916 compile_error(ctx, "invalid types used in expression: cannot multiply types %s and %s",
917 type_name[exprs[1]->expression.vtype],
918 type_name[exprs[0]->expression.vtype]);
923 if (exprs[1]->expression.vtype != TYPE_FLOAT) {
924 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
925 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
926 compile_error(ctx, "invalid types used in expression: cannot divide tyeps %s and %s", ty1, ty2);
929 if (exprs[0]->expression.vtype == TYPE_FLOAT) {
930 if (CanConstFold(exprs[0], exprs[1]))
931 out = (ast_expression*)parser_const_float(parser, ConstF(0) / ConstF(1));
933 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F, exprs[0], exprs[1]);
935 else if (exprs[0]->expression.vtype == TYPE_VECTOR) {
936 if (CanConstFold(exprs[0], exprs[1]))
937 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(0), 1.0/ConstF(1)));
939 if (CanConstFold1(exprs[1])) {
940 out = (ast_expression*)parser_const_float(parser, 1.0 / ConstF(1));
942 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F,
943 (ast_expression*)parser_const_float_1(parser),
947 compile_error(ctx, "internal error: failed to generate division");
950 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_VF, exprs[0], out);
955 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
956 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
957 compile_error(ctx, "invalid types used in expression: cannot divide tyeps %s and %s", ty1, ty2);
963 compile_error(ctx, "qc does not have a modulo operator");
967 if (NotSameType(TYPE_FLOAT)) {
968 compile_error(ctx, "invalid types used in expression: cannot perform bit operations between types %s and %s",
969 type_name[exprs[0]->expression.vtype],
970 type_name[exprs[1]->expression.vtype]);
973 if (CanConstFold(exprs[0], exprs[1]))
974 out = (ast_expression*)parser_const_float(parser,
975 (op->id == opid1('|') ? (float)( ((qcint)ConstF(0)) | ((qcint)ConstF(1)) ) :
976 (float)( ((qcint)ConstF(0)) & ((qcint)ConstF(1)) ) ));
978 out = (ast_expression*)ast_binary_new(ctx,
979 (op->id == opid1('|') ? INSTR_BITOR : INSTR_BITAND),
983 compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-xor via ^");
988 if (CanConstFold(exprs[0], exprs[1]) && ! NotSameType(TYPE_FLOAT)) {
989 if (op->id == opid2('<','<'))
990 out = (ast_expression*)parser_const_float(parser, (double)((int)(ConstF(0)) << (int)(ConstF(1))));
992 out = (ast_expression*)parser_const_float(parser, (double)((int)(ConstF(0)) >> (int)(ConstF(1))));
995 case opid3('<','<','='):
996 case opid3('>','>','='):
997 compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-shifts");
1000 case opid2('|','|'):
1001 generated_op += 1; /* INSTR_OR */
1002 case opid2('&','&'):
1003 generated_op += INSTR_AND;
1004 if (CanConstFold(exprs[0], exprs[1]))
1006 if (OPTS_FLAG(PERL_LOGIC)) {
1007 if (immediate_is_true(ctx, asvalue[0]))
1011 out = (ast_expression*)parser_const_float(parser,
1012 ( (generated_op == INSTR_OR)
1013 ? (immediate_is_true(ctx, asvalue[0]) || immediate_is_true(ctx, asvalue[1]))
1014 : (immediate_is_true(ctx, asvalue[0]) && immediate_is_true(ctx, asvalue[1])) )
1019 if (OPTS_FLAG(PERL_LOGIC) && !ast_compare_type(exprs[0], exprs[1])) {
1020 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1021 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1022 compile_error(ctx, "invalid types for logical operation with -fperl-logic: %s and %s", ty1, ty2);
1025 for (i = 0; i < 2; ++i) {
1026 if (OPTS_FLAG(CORRECT_LOGIC) && exprs[i]->expression.vtype == TYPE_VECTOR) {
1027 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[i]);
1029 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
1031 exprs[i] = out; out = NULL;
1032 if (OPTS_FLAG(PERL_LOGIC)) {
1033 /* here we want to keep the right expressions' type */
1037 else if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && exprs[i]->expression.vtype == TYPE_STRING) {
1038 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[i]);
1040 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
1042 exprs[i] = out; out = NULL;
1043 if (OPTS_FLAG(PERL_LOGIC)) {
1044 /* here we want to keep the right expressions' type */
1049 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
1053 case opid2('?',':'):
1054 if (vec_last(sy->paren) != PAREN_TERNARY2) {
1055 compile_error(ctx, "mismatched parenthesis/ternary");
1059 if (!ast_compare_type(exprs[1], exprs[2])) {
1060 ast_type_to_string(exprs[1], ty1, sizeof(ty1));
1061 ast_type_to_string(exprs[2], ty2, sizeof(ty2));
1062 compile_error(ctx, "operands of ternary expression must have the same type, got %s and %s", ty1, ty2);
1065 if (CanConstFold1(exprs[0]))
1066 out = (immediate_is_true(ctx, asvalue[0]) ? exprs[1] : exprs[2]);
1068 out = (ast_expression*)ast_ternary_new(ctx, exprs[0], exprs[1], exprs[2]);
1071 case opid3('<','=','>'): /* -1, 0, or 1 */
1072 if (NotSameType(TYPE_FLOAT)) {
1073 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1074 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1075 compile_error(ctx, "invalid types used in comparision: %s and %s",
1081 if (CanConstFold(exprs[0], exprs[1])) {
1082 if (ConstF(0) < ConstF(1))
1083 out = (ast_expression*)parser_const_float_neg1(parser);
1084 else if (ConstF(0) == ConstF(1))
1085 out = (ast_expression*)parser_const_float_0(parser);
1086 else if (ConstF(0) > ConstF(1))
1087 out = (ast_expression*)parser_const_float_1(parser);
1089 ast_binary *eq = ast_binary_new(ctx, INSTR_EQ_F, exprs[0], exprs[1]);
1091 eq->refs = false; /* references nothing */
1094 out = (ast_expression*)ast_ternary_new(ctx,
1095 (ast_expression*)ast_binary_new(ctx, INSTR_LT, exprs[0], exprs[1]),
1097 (ast_expression*)parser_const_float_neg1(parser),
1100 (ast_expression*)ast_ternary_new(ctx, (ast_expression*)eq,
1102 (ast_expression*)parser_const_float_0(parser),
1105 (ast_expression*)parser_const_float_1(parser)
1115 generated_op += 1; /* INSTR_GT */
1117 generated_op += 1; /* INSTR_LT */
1118 case opid2('>', '='):
1119 generated_op += 1; /* INSTR_GE */
1120 case opid2('<', '='):
1121 generated_op += INSTR_LE;
1122 if (NotSameType(TYPE_FLOAT)) {
1123 compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
1124 type_name[exprs[0]->expression.vtype],
1125 type_name[exprs[1]->expression.vtype]);
1128 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
1130 case opid2('!', '='):
1131 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) {
1132 compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
1133 type_name[exprs[0]->expression.vtype],
1134 type_name[exprs[1]->expression.vtype]);
1137 out = (ast_expression*)ast_binary_new(ctx, type_ne_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]);
1139 case opid2('=', '='):
1140 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) {
1141 compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
1142 type_name[exprs[0]->expression.vtype],
1143 type_name[exprs[1]->expression.vtype]);
1146 out = (ast_expression*)ast_binary_new(ctx, type_eq_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]);
1150 if (ast_istype(exprs[0], ast_entfield)) {
1151 ast_expression *field = ((ast_entfield*)exprs[0])->field;
1152 if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) &&
1153 exprs[0]->expression.vtype == TYPE_FIELD &&
1154 exprs[0]->expression.next->expression.vtype == TYPE_VECTOR)
1156 assignop = type_storep_instr[TYPE_VECTOR];
1159 assignop = type_storep_instr[exprs[0]->expression.vtype];
1160 if (assignop == VINSTR_END || !ast_compare_type(field->expression.next, exprs[1]))
1162 ast_type_to_string(field->expression.next, ty1, sizeof(ty1));
1163 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1164 if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
1165 field->expression.next->expression.vtype == TYPE_FUNCTION &&
1166 exprs[1]->expression.vtype == TYPE_FUNCTION)
1168 (void)!compile_warning(ctx, WARN_ASSIGN_FUNCTION_TYPES,
1169 "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1172 compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
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_store_instr[TYPE_VECTOR];
1184 assignop = type_store_instr[exprs[0]->expression.vtype];
1187 if (assignop == VINSTR_END) {
1188 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1189 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1190 compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1192 else if (!ast_compare_type(exprs[0], exprs[1]))
1194 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1195 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1196 if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
1197 exprs[0]->expression.vtype == TYPE_FUNCTION &&
1198 exprs[1]->expression.vtype == TYPE_FUNCTION)
1200 (void)!compile_warning(ctx, WARN_ASSIGN_FUNCTION_TYPES,
1201 "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1204 compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1207 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1208 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1210 out = (ast_expression*)ast_store_new(ctx, assignop, exprs[0], exprs[1]);
1212 case opid3('+','+','P'):
1213 case opid3('-','-','P'):
1215 if (exprs[0]->expression.vtype != TYPE_FLOAT) {
1216 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1217 compile_error(ast_ctx(exprs[0]), "invalid type for prefix increment: %s", ty1);
1220 if (op->id == opid3('+','+','P'))
1221 addop = INSTR_ADD_F;
1223 addop = INSTR_SUB_F;
1224 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1225 compile_error(ast_ctx(exprs[0]), "assignment to constant `%s`", asvalue[0]->name);
1227 if (ast_istype(exprs[0], ast_entfield)) {
1228 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
1230 (ast_expression*)parser_const_float_1(parser));
1232 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
1234 (ast_expression*)parser_const_float_1(parser));
1237 case opid3('S','+','+'):
1238 case opid3('S','-','-'):
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 suffix increment: %s", ty1);
1245 if (op->id == opid3('S','+','+')) {
1246 addop = INSTR_ADD_F;
1247 subop = INSTR_SUB_F;
1249 addop = INSTR_SUB_F;
1250 subop = INSTR_ADD_F;
1252 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1253 compile_error(ast_ctx(exprs[0]), "assignment to constant `%s`", asvalue[0]->name);
1255 if (ast_istype(exprs[0], ast_entfield)) {
1256 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
1258 (ast_expression*)parser_const_float_1(parser));
1260 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
1262 (ast_expression*)parser_const_float_1(parser));
1266 out = (ast_expression*)ast_binary_new(ctx, subop,
1268 (ast_expression*)parser_const_float_1(parser));
1270 case opid2('+','='):
1271 case opid2('-','='):
1272 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
1273 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
1275 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1276 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1277 compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
1281 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1282 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1284 if (ast_istype(exprs[0], ast_entfield))
1285 assignop = type_storep_instr[exprs[0]->expression.vtype];
1287 assignop = type_store_instr[exprs[0]->expression.vtype];
1288 switch (exprs[0]->expression.vtype) {
1290 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1291 (op->id == opid2('+','=') ? INSTR_ADD_F : INSTR_SUB_F),
1292 exprs[0], exprs[1]);
1295 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1296 (op->id == opid2('+','=') ? INSTR_ADD_V : INSTR_SUB_V),
1297 exprs[0], exprs[1]);
1300 compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
1301 type_name[exprs[0]->expression.vtype],
1302 type_name[exprs[1]->expression.vtype]);
1306 case opid2('*','='):
1307 case opid2('/','='):
1308 if (exprs[1]->expression.vtype != TYPE_FLOAT ||
1309 !(exprs[0]->expression.vtype == TYPE_FLOAT ||
1310 exprs[0]->expression.vtype == TYPE_VECTOR))
1312 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1313 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1314 compile_error(ctx, "invalid types used in expression: %s and %s",
1318 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1319 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1321 if (ast_istype(exprs[0], ast_entfield))
1322 assignop = type_storep_instr[exprs[0]->expression.vtype];
1324 assignop = type_store_instr[exprs[0]->expression.vtype];
1325 switch (exprs[0]->expression.vtype) {
1327 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1328 (op->id == opid2('*','=') ? INSTR_MUL_F : INSTR_DIV_F),
1329 exprs[0], exprs[1]);
1332 if (op->id == opid2('*','=')) {
1333 out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
1334 exprs[0], exprs[1]);
1336 /* there's no DIV_VF */
1337 if (CanConstFold1(exprs[1])) {
1338 out = (ast_expression*)parser_const_float(parser, 1.0 / ConstF(1));
1340 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F,
1341 (ast_expression*)parser_const_float_1(parser),
1345 compile_error(ctx, "internal error: failed to generate division");
1348 out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
1353 compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
1354 type_name[exprs[0]->expression.vtype],
1355 type_name[exprs[1]->expression.vtype]);
1359 case opid2('&','='):
1360 case opid2('|','='):
1361 if (NotSameType(TYPE_FLOAT)) {
1362 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1363 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1364 compile_error(ctx, "invalid types used in expression: %s and %s",
1368 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1369 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1371 if (ast_istype(exprs[0], ast_entfield))
1372 assignop = type_storep_instr[exprs[0]->expression.vtype];
1374 assignop = type_store_instr[exprs[0]->expression.vtype];
1375 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1376 (op->id == opid2('&','=') ? INSTR_BITAND : INSTR_BITOR),
1377 exprs[0], exprs[1]);
1379 case opid3('&','~','='):
1380 /* This is like: a &= ~(b);
1381 * But QC has no bitwise-not, so we implement it as
1384 if (NotSameType(TYPE_FLOAT)) {
1385 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1386 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1387 compile_error(ctx, "invalid types used in expression: %s and %s",
1391 if (ast_istype(exprs[0], ast_entfield))
1392 assignop = type_storep_instr[exprs[0]->expression.vtype];
1394 assignop = type_store_instr[exprs[0]->expression.vtype];
1395 out = (ast_expression*)ast_binary_new(ctx, INSTR_BITAND, exprs[0], exprs[1]);
1398 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1399 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1401 asbinstore = ast_binstore_new(ctx, assignop, INSTR_SUB_F, exprs[0], out);
1402 asbinstore->keep_dest = true;
1403 out = (ast_expression*)asbinstore;
1406 case opid2('~', 'P'):
1407 if (exprs[0]->expression.vtype != TYPE_FLOAT) {
1408 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1409 compile_error(ast_ctx(exprs[0]), "invalid type for bit not: %s", ty1);
1413 if(CanConstFold1(exprs[0]))
1414 out = (ast_expression*)parser_const_float(parser, ~(qcint)ConstF(0));
1416 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F, (ast_expression*)parser_const_float_neg1(parser), exprs[0]);
1422 compile_error(ctx, "failed to apply operator %s", op->op);
1426 vec_push(sy->out, syexp(ctx, out));
1430 static bool parser_close_call(parser_t *parser, shunt *sy)
1432 /* was a function call */
1433 ast_expression *fun;
1434 ast_value *funval = NULL;
1438 size_t paramcount, i;
1440 fid = vec_last(sy->ops).off;
1441 vec_shrinkby(sy->ops, 1);
1443 /* out[fid] is the function
1444 * everything above is parameters...
1446 if (!vec_size(sy->argc)) {
1447 parseerror(parser, "internal error: no argument counter available");
1451 paramcount = vec_last(sy->argc);
1454 if (vec_size(sy->out) < fid) {
1455 parseerror(parser, "internal error: broken function call%lu < %lu+%lu\n",
1456 (unsigned long)vec_size(sy->out),
1458 (unsigned long)paramcount);
1462 fun = sy->out[fid].out;
1464 if (fun == intrinsic_debug_typestring) {
1466 if (fid+2 != vec_size(sy->out) ||
1467 vec_last(sy->out).block)
1469 parseerror(parser, "intrinsic __builtin_debug_typestring requires exactly 1 parameter");
1472 ast_type_to_string(vec_last(sy->out).out, ty, sizeof(ty));
1473 ast_unref(vec_last(sy->out).out);
1474 sy->out[fid] = syexp(ast_ctx(vec_last(sy->out).out),
1475 (ast_expression*)parser_const_string(parser, ty, false));
1476 vec_shrinkby(sy->out, 1);
1480 call = ast_call_new(sy->ops[vec_size(sy->ops)].ctx, fun);
1484 if (fid+1 < vec_size(sy->out))
1487 if (fid+1 + paramcount != vec_size(sy->out)) {
1488 parseerror(parser, "internal error: parameter count mismatch: (%lu+1+%lu), %lu",
1489 (unsigned long)fid, (unsigned long)paramcount, (unsigned long)vec_size(sy->out));
1493 for (i = 0; i < paramcount; ++i)
1494 vec_push(call->params, sy->out[fid+1 + i].out);
1495 vec_shrinkby(sy->out, paramcount);
1496 (void)!ast_call_check_types(call);
1497 if (parser->max_param_count < paramcount)
1498 parser->max_param_count = paramcount;
1500 if (ast_istype(fun, ast_value)) {
1501 funval = (ast_value*)fun;
1502 if ((fun->expression.flags & AST_FLAG_VARIADIC) &&
1503 !(/*funval->cvq == CV_CONST && */ funval->hasvalue && funval->constval.vfunc->builtin))
1505 call->va_count = (ast_expression*)parser_const_float(parser, (double)paramcount);
1509 /* overwrite fid, the function, with a call */
1510 sy->out[fid] = syexp(call->expression.node.context, (ast_expression*)call);
1512 if (fun->expression.vtype != TYPE_FUNCTION) {
1513 parseerror(parser, "not a function (%s)", type_name[fun->expression.vtype]);
1517 if (!fun->expression.next) {
1518 parseerror(parser, "could not determine function return type");
1521 ast_value *fval = (ast_istype(fun, ast_value) ? ((ast_value*)fun) : NULL);
1523 if (fun->expression.flags & AST_FLAG_DEPRECATED) {
1525 return !parsewarning(parser, WARN_DEPRECATED,
1526 "call to function (which is marked deprecated)\n",
1527 "-> it has been declared here: %s:%i",
1528 ast_ctx(fun).file, ast_ctx(fun).line);
1531 return !parsewarning(parser, WARN_DEPRECATED,
1532 "call to `%s` (which is marked deprecated)\n"
1533 "-> `%s` declared here: %s:%i",
1534 fval->name, fval->name, ast_ctx(fun).file, ast_ctx(fun).line);
1536 return !parsewarning(parser, WARN_DEPRECATED,
1537 "call to `%s` (deprecated: %s)\n"
1538 "-> `%s` declared here: %s:%i",
1539 fval->name, fval->desc, fval->name, ast_ctx(fun).file,
1543 if (vec_size(fun->expression.params) != paramcount &&
1544 !((fun->expression.flags & AST_FLAG_VARIADIC) &&
1545 vec_size(fun->expression.params) < paramcount))
1547 const char *fewmany = (vec_size(fun->expression.params) > paramcount) ? "few" : "many";
1549 return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT,
1550 "too %s parameters for call to %s: expected %i, got %i\n"
1551 " -> `%s` has been declared here: %s:%i",
1552 fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount,
1553 fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
1555 return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT,
1556 "too %s parameters for function call: expected %i, got %i\n"
1557 " -> it has been declared here: %s:%i",
1558 fewmany, (int)vec_size(fun->expression.params), (int)paramcount,
1559 ast_ctx(fun).file, (int)ast_ctx(fun).line);
1566 static bool parser_close_paren(parser_t *parser, shunt *sy)
1568 if (!vec_size(sy->ops)) {
1569 parseerror(parser, "unmatched closing paren");
1573 while (vec_size(sy->ops)) {
1574 if (vec_last(sy->ops).isparen) {
1575 if (vec_last(sy->paren) == PAREN_FUNC) {
1577 if (!parser_close_call(parser, sy))
1581 if (vec_last(sy->paren) == PAREN_EXPR) {
1583 if (!vec_size(sy->out)) {
1584 compile_error(vec_last(sy->ops).ctx, "empty paren expression");
1585 vec_shrinkby(sy->ops, 1);
1588 vec_shrinkby(sy->ops, 1);
1591 if (vec_last(sy->paren) == PAREN_INDEX) {
1593 /* pop off the parenthesis */
1594 vec_shrinkby(sy->ops, 1);
1595 /* then apply the index operator */
1596 if (!parser_sy_apply_operator(parser, sy))
1600 if (vec_last(sy->paren) == PAREN_TERNARY1) {
1601 vec_last(sy->paren) = PAREN_TERNARY2;
1602 /* pop off the parenthesis */
1603 vec_shrinkby(sy->ops, 1);
1606 compile_error(vec_last(sy->ops).ctx, "invalid parenthesis");
1609 if (!parser_sy_apply_operator(parser, sy))
1615 static void parser_reclassify_token(parser_t *parser)
1618 for (i = 0; i < operator_count; ++i) {
1619 if (!strcmp(parser_tokval(parser), operators[i].op)) {
1620 parser->tok = TOKEN_OPERATOR;
1626 static ast_expression* parse_vararg_do(parser_t *parser)
1628 ast_expression *idx, *out;
1630 ast_value *funtype = parser->function->vtype;
1632 lex_ctx ctx = parser_ctx(parser);
1634 if (!parser_next(parser) || parser->tok != '(') {
1635 parseerror(parser, "expected parameter index and type in parenthesis");
1638 if (!parser_next(parser)) {
1639 parseerror(parser, "error parsing parameter index");
1643 idx = parse_expression_leave(parser, true, false, false);
1647 if (parser->tok != ',') {
1649 parseerror(parser, "expected comma after parameter index");
1653 if (!parser_next(parser) || (parser->tok != TOKEN_IDENT && parser->tok != TOKEN_TYPENAME)) {
1655 parseerror(parser, "expected typename for vararg");
1659 typevar = parse_typename(parser, NULL, NULL);
1665 if (parser->tok != ')') {
1667 ast_delete(typevar);
1668 parseerror(parser, "expected closing paren");
1673 if (!parser_next(parser)) {
1675 ast_delete(typevar);
1676 parseerror(parser, "parse error after vararg");
1681 if (!parser->function->varargs) {
1683 ast_delete(typevar);
1684 parseerror(parser, "function has no variable argument list");
1688 if (funtype->expression.varparam &&
1689 !ast_compare_type((ast_expression*)typevar, (ast_expression*)funtype->expression.varparam))
1693 ast_type_to_string((ast_expression*)typevar, ty1, sizeof(ty1));
1694 ast_type_to_string((ast_expression*)funtype->expression.varparam, ty2, sizeof(ty2));
1695 compile_error(ast_ctx(typevar),
1696 "function was declared to take varargs of type `%s`, requested type is: %s",
1700 out = (ast_expression*)ast_array_index_new(ctx, (ast_expression*)(parser->function->varargs), idx);
1701 ast_type_adopt(out, typevar);
1702 ast_delete(typevar);
1706 static ast_expression* parse_vararg(parser_t *parser)
1708 bool old_noops = parser->lex->flags.noops;
1710 ast_expression *out;
1712 parser->lex->flags.noops = true;
1713 out = parse_vararg_do(parser);
1715 parser->lex->flags.noops = old_noops;
1719 static bool parse_sya_operand(parser_t *parser, shunt *sy, bool with_labels)
1721 if (OPTS_FLAG(TRANSLATABLE_STRINGS) &&
1722 parser->tok == TOKEN_IDENT &&
1723 !strcmp(parser_tokval(parser), "_"))
1725 /* a translatable string */
1728 parser->lex->flags.noops = true;
1729 if (!parser_next(parser) || parser->tok != '(') {
1730 parseerror(parser, "use _(\"string\") to create a translatable string constant");
1733 parser->lex->flags.noops = false;
1734 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
1735 parseerror(parser, "expected a constant string in translatable-string extension");
1738 val = parser_const_string(parser, parser_tokval(parser), true);
1741 vec_push(sy->out, syexp(parser_ctx(parser), (ast_expression*)val));
1743 if (!parser_next(parser) || parser->tok != ')') {
1744 parseerror(parser, "expected closing paren after translatable string");
1749 else if (parser->tok == TOKEN_DOTS)
1752 if (!OPTS_FLAG(VARIADIC_ARGS)) {
1753 parseerror(parser, "cannot access varargs (try -fvariadic-args)");
1756 va = parse_vararg(parser);
1759 vec_push(sy->out, syexp(parser_ctx(parser), va));
1762 else if (parser->tok == TOKEN_FLOATCONST) {
1764 val = parser_const_float(parser, (parser_token(parser)->constval.f));
1767 vec_push(sy->out, syexp(parser_ctx(parser), (ast_expression*)val));
1770 else if (parser->tok == TOKEN_INTCONST || parser->tok == TOKEN_CHARCONST) {
1772 val = parser_const_float(parser, (double)(parser_token(parser)->constval.i));
1775 vec_push(sy->out, syexp(parser_ctx(parser), (ast_expression*)val));
1778 else if (parser->tok == TOKEN_STRINGCONST) {
1780 val = parser_const_string(parser, parser_tokval(parser), false);
1783 vec_push(sy->out, syexp(parser_ctx(parser), (ast_expression*)val));
1786 else if (parser->tok == TOKEN_VECTORCONST) {
1788 val = parser_const_vector(parser, parser_token(parser)->constval.v);
1791 vec_push(sy->out, syexp(parser_ctx(parser), (ast_expression*)val));
1794 else if (parser->tok == TOKEN_IDENT)
1796 const char *ctoken = parser_tokval(parser);
1797 ast_expression *prev = vec_size(sy->out) ? vec_last(sy->out).out : NULL;
1798 ast_expression *var;
1799 /* a_vector.{x,y,z} */
1800 if (!vec_size(sy->ops) ||
1801 !vec_last(sy->ops).etype ||
1802 operators[vec_last(sy->ops).etype-1].id != opid1('.') ||
1803 (prev >= intrinsic_debug_typestring &&
1804 prev <= intrinsic_debug_typestring))
1806 /* When adding more intrinsics, fix the above condition */
1809 if (prev && prev->expression.vtype == TYPE_VECTOR && ctoken[0] >= 'x' && ctoken[0] <= 'z' && !ctoken[1])
1811 var = (ast_expression*)parser->const_vec[ctoken[0]-'x'];
1813 var = parser_find_var(parser, parser_tokval(parser));
1815 var = parser_find_field(parser, parser_tokval(parser));
1817 if (!var && with_labels) {
1818 var = (ast_expression*)parser_find_label(parser, parser_tokval(parser));
1820 ast_label *lbl = ast_label_new(parser_ctx(parser), parser_tokval(parser), true);
1821 var = (ast_expression*)lbl;
1822 vec_push(parser->labels, lbl);
1827 if (!strcmp(parser_tokval(parser), "__builtin_debug_typestring")) {
1828 var = (ast_expression*)intrinsic_debug_typestring;
1830 const char *alias = util_htget(parser->aliases, parser_tokval(parser));
1832 var = (ast_expression*)parser_find_var(parser, alias);
1836 char *correct = NULL;
1840 * sometimes people use preprocessing predefs without enabling them
1841 * i've done this thousands of times already myself. Lets check for
1842 * it in the predef table. And diagnose it better :)
1844 if (!OPTS_FLAG(FTEPP_PREDEFS)) {
1845 for (i = 0; i < sizeof(ftepp_predefs)/sizeof(*ftepp_predefs); i++) {
1846 if (!strcmp(ftepp_predefs[i].name, parser_tokval(parser))) {
1847 parseerror(parser, "unexpected ident: %s (use -fftepp-predef to enable pre-defined macros)", parser_tokval(parser));
1854 * TODO: determine the best score for the identifier: be it
1855 * a variable, a field.
1857 * We should also consider adding correction tables for
1858 * other things as well.
1860 if (OPTS_OPTION_BOOL(OPTION_CORRECTION)) {
1862 correct_init(&corr);
1864 for (i = 0; i < vec_size(parser->correct_variables); i++) {
1865 correct = correct_str(&corr, parser->correct_variables[i], parser_tokval(parser));
1866 if (strcmp(correct, parser_tokval(parser))) {
1868 } else if (correct) {
1873 correct_free(&corr);
1876 parseerror(parser, "unexpected ident: %s (did you mean %s?)", parser_tokval(parser), correct);
1881 parseerror(parser, "unexpected ident: %s", parser_tokval(parser));
1887 if (ast_istype(var, ast_value)) {
1888 ((ast_value*)var)->uses++;
1890 else if (ast_istype(var, ast_member)) {
1891 ast_member *mem = (ast_member*)var;
1892 if (ast_istype(mem->owner, ast_value))
1893 ((ast_value*)(mem->owner))->uses++;
1896 vec_push(sy->out, syexp(parser_ctx(parser), var));
1899 parseerror(parser, "unexpected token `%s`", parser_tokval(parser));
1903 static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels)
1905 ast_expression *expr = NULL;
1908 bool wantop = false;
1909 /* only warn once about an assignment in a truth value because the current code
1910 * would trigger twice on: if(a = b && ...), once for the if-truth-value, once for the && part
1912 bool warn_truthvalue = true;
1914 /* count the parens because an if starts with one, so the
1915 * end of a condition is an unmatched closing paren
1919 memset(&sy, 0, sizeof(sy));
1921 parser->lex->flags.noops = false;
1923 parser_reclassify_token(parser);
1927 if (parser->tok == TOKEN_TYPENAME) {
1928 parseerror(parser, "unexpected typename");
1932 if (parser->tok == TOKEN_OPERATOR)
1934 /* classify the operator */
1935 const oper_info *op;
1936 const oper_info *olast = NULL;
1938 for (o = 0; o < operator_count; ++o) {
1939 if (((!(operators[o].flags & OP_PREFIX) == !!wantop)) &&
1940 /* !(operators[o].flags & OP_SUFFIX) && / * remove this */
1941 !strcmp(parser_tokval(parser), operators[o].op))
1946 if (o == operator_count) {
1947 compile_error(parser_ctx(parser), "unknown operator: %s", parser_tokval(parser));
1950 /* found an operator */
1953 /* when declaring variables, a comma starts a new variable */
1954 if (op->id == opid1(',') && !vec_size(sy.paren) && stopatcomma) {
1955 /* fixup the token */
1960 /* a colon without a pervious question mark cannot be a ternary */
1961 if (!ternaries && op->id == opid2(':','?')) {
1966 if (op->id == opid1(',')) {
1967 if (vec_size(sy.paren) && vec_last(sy.paren) == PAREN_TERNARY2) {
1968 (void)!parsewarning(parser, WARN_TERNARY_PRECEDENCE, "suggesting parenthesis around ternary expression");
1972 if (vec_size(sy.ops) && !vec_last(sy.ops).isparen)
1973 olast = &operators[vec_last(sy.ops).etype-1];
1975 #define IsAssignOp(x) (\
1976 (x) == opid1('=') || \
1977 (x) == opid2('+','=') || \
1978 (x) == opid2('-','=') || \
1979 (x) == opid2('*','=') || \
1980 (x) == opid2('/','=') || \
1981 (x) == opid2('%','=') || \
1982 (x) == opid2('&','=') || \
1983 (x) == opid2('|','=') || \
1984 (x) == opid3('&','~','=') \
1986 if (warn_truthvalue) {
1987 if ( (olast && IsAssignOp(olast->id) && (op->id == opid2('&','&') || op->id == opid2('|','|'))) ||
1988 (olast && IsAssignOp(op->id) && (olast->id == opid2('&','&') || olast->id == opid2('|','|'))) ||
1989 (truthvalue && !vec_size(sy.paren) && IsAssignOp(op->id))
1992 (void)!parsewarning(parser, WARN_PARENTHESIS, "suggesting parenthesis around assignment used as truth value");
1993 warn_truthvalue = false;
1998 (op->prec < olast->prec) ||
1999 (op->assoc == ASSOC_LEFT && op->prec <= olast->prec) ) )
2001 if (!parser_sy_apply_operator(parser, &sy))
2003 if (vec_size(sy.ops) && !vec_last(sy.ops).isparen)
2004 olast = &operators[vec_last(sy.ops).etype-1];
2009 if (op->id == opid1('(')) {
2011 size_t sycount = vec_size(sy.out);
2012 /* we expected an operator, this is the function-call operator */
2013 vec_push(sy.paren, PAREN_FUNC);
2014 vec_push(sy.ops, syparen(parser_ctx(parser), sycount-1));
2015 vec_push(sy.argc, 0);
2017 vec_push(sy.paren, PAREN_EXPR);
2018 vec_push(sy.ops, syparen(parser_ctx(parser), 0));
2021 } else if (op->id == opid1('[')) {
2023 parseerror(parser, "unexpected array subscript");
2026 vec_push(sy.paren, PAREN_INDEX);
2027 /* push both the operator and the paren, this makes life easier */
2028 vec_push(sy.ops, syop(parser_ctx(parser), op));
2029 vec_push(sy.ops, syparen(parser_ctx(parser), 0));
2031 } else if (op->id == opid2('?',':')) {
2032 vec_push(sy.ops, syop(parser_ctx(parser), op));
2033 vec_push(sy.ops, syparen(parser_ctx(parser), 0));
2036 vec_push(sy.paren, PAREN_TERNARY1);
2037 } else if (op->id == opid2(':','?')) {
2038 if (!vec_size(sy.paren)) {
2039 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
2042 if (vec_last(sy.paren) != PAREN_TERNARY1) {
2043 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
2046 if (!parser_close_paren(parser, &sy))
2048 vec_push(sy.ops, syop(parser_ctx(parser), op));
2052 vec_push(sy.ops, syop(parser_ctx(parser), op));
2053 wantop = !!(op->flags & OP_SUFFIX);
2056 else if (parser->tok == ')') {
2057 while (vec_size(sy.paren) && vec_last(sy.paren) == PAREN_TERNARY2) {
2058 if (!parser_sy_apply_operator(parser, &sy))
2061 if (!vec_size(sy.paren))
2064 if (vec_last(sy.paren) == PAREN_TERNARY1) {
2065 parseerror(parser, "mismatched parentheses (closing paren in ternary expression?)");
2068 if (!parser_close_paren(parser, &sy))
2071 /* must be a function call without parameters */
2072 if (vec_last(sy.paren) != PAREN_FUNC) {
2073 parseerror(parser, "closing paren in invalid position");
2076 if (!parser_close_paren(parser, &sy))
2081 else if (parser->tok == '(') {
2082 parseerror(parser, "internal error: '(' should be classified as operator");
2085 else if (parser->tok == '[') {
2086 parseerror(parser, "internal error: '[' should be classified as operator");
2089 else if (parser->tok == ']') {
2090 while (vec_size(sy.paren) && vec_last(sy.paren) == PAREN_TERNARY2) {
2091 if (!parser_sy_apply_operator(parser, &sy))
2094 if (!vec_size(sy.paren))
2096 if (vec_last(sy.paren) != PAREN_INDEX) {
2097 parseerror(parser, "mismatched parentheses, unexpected ']'");
2100 if (!parser_close_paren(parser, &sy))
2105 if (!parse_sya_operand(parser, &sy, with_labels))
2108 if (vec_size(sy.paren) && vec_last(sy.ops).isparen && vec_last(sy.paren) == PAREN_FUNC)
2109 vec_last(sy.argc)++;
2114 parseerror(parser, "expected operator or end of statement");
2118 if (!parser_next(parser)) {
2121 if (parser->tok == ';' ||
2122 ((!vec_size(sy.paren) || (vec_size(sy.paren) == 1 && vec_last(sy.paren) == PAREN_TERNARY2)) &&
2123 (parser->tok == ']' || parser->tok == ')' || parser->tok == '}')))
2129 while (vec_size(sy.ops)) {
2130 if (!parser_sy_apply_operator(parser, &sy))
2134 parser->lex->flags.noops = true;
2135 if (!vec_size(sy.out)) {
2136 parseerror(parser, "empty expression");
2139 expr = sy.out[0].out;
2142 if (vec_size(sy.paren)) {
2143 parseerror(parser, "internal error: vec_size(sy.paren) = %lu", (unsigned long)vec_size(sy.paren));
2151 parser->lex->flags.noops = true;
2152 for (i = 0; i < vec_size(sy.out); ++i) {
2154 ast_unref(sy.out[i].out);
2163 static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels)
2165 ast_expression *e = parse_expression_leave(parser, stopatcomma, false, with_labels);
2168 if (parser->tok != ';') {
2169 parseerror(parser, "semicolon expected after expression");
2173 if (!parser_next(parser)) {
2180 static void parser_enterblock(parser_t *parser)
2182 vec_push(parser->variables, util_htnew(PARSER_HT_SIZE));
2183 vec_push(parser->_blocklocals, vec_size(parser->_locals));
2184 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
2185 vec_push(parser->_blocktypedefs, vec_size(parser->_typedefs));
2186 vec_push(parser->_block_ctx, parser_ctx(parser));
2189 vec_push(parser->correct_variables, correct_trie_new());
2190 vec_push(parser->correct_variables_score, NULL);
2193 static bool parser_leaveblock(parser_t *parser)
2196 size_t locals, typedefs;
2198 if (vec_size(parser->variables) <= PARSER_HT_LOCALS) {
2199 parseerror(parser, "internal error: parser_leaveblock with no block");
2203 util_htdel(vec_last(parser->variables));
2204 correct_del(vec_last(parser->correct_variables), vec_last(parser->correct_variables_score));
2206 vec_pop(parser->variables);
2207 vec_pop(parser->correct_variables);
2208 vec_pop(parser->correct_variables_score);
2209 if (!vec_size(parser->_blocklocals)) {
2210 parseerror(parser, "internal error: parser_leaveblock with no block (2)");
2214 locals = vec_last(parser->_blocklocals);
2215 vec_pop(parser->_blocklocals);
2216 while (vec_size(parser->_locals) != locals) {
2217 ast_expression *e = vec_last(parser->_locals);
2218 ast_value *v = (ast_value*)e;
2219 vec_pop(parser->_locals);
2220 if (ast_istype(e, ast_value) && !v->uses) {
2221 if (compile_warning(ast_ctx(v), WARN_UNUSED_VARIABLE, "unused variable: `%s`", v->name))
2226 typedefs = vec_last(parser->_blocktypedefs);
2227 while (vec_size(parser->_typedefs) != typedefs) {
2228 ast_delete(vec_last(parser->_typedefs));
2229 vec_pop(parser->_typedefs);
2231 util_htdel(vec_last(parser->typedefs));
2232 vec_pop(parser->typedefs);
2234 vec_pop(parser->_block_ctx);
2239 static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e)
2241 vec_push(parser->_locals, e);
2242 util_htset(vec_last(parser->variables), name, (void*)e);
2246 vec_last(parser->correct_variables),
2247 &vec_last(parser->correct_variables_score),
2252 static void parser_addglobal(parser_t *parser, const char *name, ast_expression *e)
2254 vec_push(parser->globals, e);
2255 util_htset(parser->htglobals, name, e);
2259 parser->correct_variables[0],
2260 &parser->correct_variables_score[0],
2265 static ast_expression* process_condition(parser_t *parser, ast_expression *cond, bool *_ifnot)
2269 ast_expression *prev;
2271 if (cond->expression.vtype == TYPE_VOID || cond->expression.vtype >= TYPE_VARIANT) {
2273 ast_type_to_string(cond, ty, sizeof(ty));
2274 compile_error(ast_ctx(cond), "invalid type for if() condition: %s", ty);
2277 if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && cond->expression.vtype == TYPE_STRING)
2280 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_S, cond);
2283 parseerror(parser, "internal error: failed to process condition");
2288 else if (OPTS_FLAG(CORRECT_LOGIC) && cond->expression.vtype == TYPE_VECTOR)
2290 /* vector types need to be cast to true booleans */
2291 ast_binary *bin = (ast_binary*)cond;
2292 if (!OPTS_FLAG(PERL_LOGIC) || !ast_istype(cond, ast_binary) || !(bin->op == INSTR_AND || bin->op == INSTR_OR))
2294 /* in perl-logic, AND and OR take care of the -fcorrect-logic */
2296 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_V, cond);
2299 parseerror(parser, "internal error: failed to process condition");
2306 unary = (ast_unary*)cond;
2307 while (ast_istype(cond, ast_unary) && unary->op == INSTR_NOT_F)
2309 cond = unary->operand;
2310 unary->operand = NULL;
2313 unary = (ast_unary*)cond;
2317 parseerror(parser, "internal error: failed to process condition");
2319 if (ifnot) *_ifnot = !*_ifnot;
2323 static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out)
2326 ast_expression *cond, *ontrue = NULL, *onfalse = NULL;
2329 lex_ctx ctx = parser_ctx(parser);
2331 (void)block; /* not touching */
2333 /* skip the 'if', parse an optional 'not' and check for an opening paren */
2334 if (!parser_next(parser)) {
2335 parseerror(parser, "expected condition or 'not'");
2338 if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "not")) {
2340 if (!parser_next(parser)) {
2341 parseerror(parser, "expected condition in parenthesis");
2345 if (parser->tok != '(') {
2346 parseerror(parser, "expected 'if' condition in parenthesis");
2349 /* parse into the expression */
2350 if (!parser_next(parser)) {
2351 parseerror(parser, "expected 'if' condition after opening paren");
2354 /* parse the condition */
2355 cond = parse_expression_leave(parser, false, true, false);
2359 if (parser->tok != ')') {
2360 parseerror(parser, "expected closing paren after 'if' condition");
2364 /* parse into the 'then' branch */
2365 if (!parser_next(parser)) {
2366 parseerror(parser, "expected statement for on-true branch of 'if'");
2370 if (!parse_statement_or_block(parser, &ontrue)) {
2375 ontrue = (ast_expression*)ast_block_new(parser_ctx(parser));
2376 /* check for an else */
2377 if (!strcmp(parser_tokval(parser), "else")) {
2378 /* parse into the 'else' branch */
2379 if (!parser_next(parser)) {
2380 parseerror(parser, "expected on-false branch after 'else'");
2385 if (!parse_statement_or_block(parser, &onfalse)) {
2392 cond = process_condition(parser, cond, &ifnot);
2394 if (ontrue) ast_delete(ontrue);
2395 if (onfalse) ast_delete(onfalse);
2400 ifthen = ast_ifthen_new(ctx, cond, onfalse, ontrue);
2402 ifthen = ast_ifthen_new(ctx, cond, ontrue, onfalse);
2403 *out = (ast_expression*)ifthen;
2407 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out);
2408 static bool parse_while(parser_t *parser, ast_block *block, ast_expression **out)
2413 /* skip the 'while' and get the body */
2414 if (!parser_next(parser)) {
2415 if (OPTS_FLAG(LOOP_LABELS))
2416 parseerror(parser, "expected loop label or 'while' condition in parenthesis");
2418 parseerror(parser, "expected 'while' condition in parenthesis");
2422 if (parser->tok == ':') {
2423 if (!OPTS_FLAG(LOOP_LABELS))
2424 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2425 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2426 parseerror(parser, "expected loop label");
2429 label = util_strdup(parser_tokval(parser));
2430 if (!parser_next(parser)) {
2432 parseerror(parser, "expected 'while' condition in parenthesis");
2437 if (parser->tok != '(') {
2438 parseerror(parser, "expected 'while' condition in parenthesis");
2442 vec_push(parser->breaks, label);
2443 vec_push(parser->continues, label);
2445 rv = parse_while_go(parser, block, out);
2448 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2449 parseerror(parser, "internal error: label stack corrupted");
2455 vec_pop(parser->breaks);
2456 vec_pop(parser->continues);
2461 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out)
2464 ast_expression *cond, *ontrue;
2468 lex_ctx ctx = parser_ctx(parser);
2470 (void)block; /* not touching */
2472 /* parse into the expression */
2473 if (!parser_next(parser)) {
2474 parseerror(parser, "expected 'while' condition after opening paren");
2477 /* parse the condition */
2478 cond = parse_expression_leave(parser, false, true, false);
2482 if (parser->tok != ')') {
2483 parseerror(parser, "expected closing paren after 'while' condition");
2487 /* parse into the 'then' branch */
2488 if (!parser_next(parser)) {
2489 parseerror(parser, "expected while-loop body");
2493 if (!parse_statement_or_block(parser, &ontrue)) {
2498 cond = process_condition(parser, cond, &ifnot);
2503 aloop = ast_loop_new(ctx, NULL, cond, ifnot, NULL, false, NULL, ontrue);
2504 *out = (ast_expression*)aloop;
2508 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out);
2509 static bool parse_dowhile(parser_t *parser, ast_block *block, ast_expression **out)
2514 /* skip the 'do' and get the body */
2515 if (!parser_next(parser)) {
2516 if (OPTS_FLAG(LOOP_LABELS))
2517 parseerror(parser, "expected loop label or body");
2519 parseerror(parser, "expected loop body");
2523 if (parser->tok == ':') {
2524 if (!OPTS_FLAG(LOOP_LABELS))
2525 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2526 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2527 parseerror(parser, "expected loop label");
2530 label = util_strdup(parser_tokval(parser));
2531 if (!parser_next(parser)) {
2533 parseerror(parser, "expected loop body");
2538 vec_push(parser->breaks, label);
2539 vec_push(parser->continues, label);
2541 rv = parse_dowhile_go(parser, block, out);
2544 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2545 parseerror(parser, "internal error: label stack corrupted");
2551 vec_pop(parser->breaks);
2552 vec_pop(parser->continues);
2557 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out)
2560 ast_expression *cond, *ontrue;
2564 lex_ctx ctx = parser_ctx(parser);
2566 (void)block; /* not touching */
2568 if (!parse_statement_or_block(parser, &ontrue))
2571 /* expect the "while" */
2572 if (parser->tok != TOKEN_KEYWORD ||
2573 strcmp(parser_tokval(parser), "while"))
2575 parseerror(parser, "expected 'while' and condition");
2580 /* skip the 'while' and check for opening paren */
2581 if (!parser_next(parser) || parser->tok != '(') {
2582 parseerror(parser, "expected 'while' condition in parenthesis");
2586 /* parse into the expression */
2587 if (!parser_next(parser)) {
2588 parseerror(parser, "expected 'while' condition after opening paren");
2592 /* parse the condition */
2593 cond = parse_expression_leave(parser, false, true, false);
2597 if (parser->tok != ')') {
2598 parseerror(parser, "expected closing paren after 'while' condition");
2604 if (!parser_next(parser) || parser->tok != ';') {
2605 parseerror(parser, "expected semicolon after condition");
2611 if (!parser_next(parser)) {
2612 parseerror(parser, "parse error");
2618 cond = process_condition(parser, cond, &ifnot);
2623 aloop = ast_loop_new(ctx, NULL, NULL, false, cond, ifnot, NULL, ontrue);
2624 *out = (ast_expression*)aloop;
2628 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out);
2629 static bool parse_for(parser_t *parser, ast_block *block, ast_expression **out)
2634 /* skip the 'for' and check for opening paren */
2635 if (!parser_next(parser)) {
2636 if (OPTS_FLAG(LOOP_LABELS))
2637 parseerror(parser, "expected loop label or 'for' expressions in parenthesis");
2639 parseerror(parser, "expected 'for' expressions in parenthesis");
2643 if (parser->tok == ':') {
2644 if (!OPTS_FLAG(LOOP_LABELS))
2645 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2646 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2647 parseerror(parser, "expected loop label");
2650 label = util_strdup(parser_tokval(parser));
2651 if (!parser_next(parser)) {
2653 parseerror(parser, "expected 'for' expressions in parenthesis");
2658 if (parser->tok != '(') {
2659 parseerror(parser, "expected 'for' expressions in parenthesis");
2663 vec_push(parser->breaks, label);
2664 vec_push(parser->continues, label);
2666 rv = parse_for_go(parser, block, out);
2669 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2670 parseerror(parser, "internal error: label stack corrupted");
2676 vec_pop(parser->breaks);
2677 vec_pop(parser->continues);
2681 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out)
2684 ast_expression *initexpr, *cond, *increment, *ontrue;
2690 lex_ctx ctx = parser_ctx(parser);
2692 parser_enterblock(parser);
2699 /* parse into the expression */
2700 if (!parser_next(parser)) {
2701 parseerror(parser, "expected 'for' initializer after opening paren");
2706 if (parser->tok == TOKEN_IDENT)
2707 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
2709 if (typevar || parser->tok == TOKEN_TYPENAME) {
2711 if (OPTS_OPTION_U32(OPTION_STANDARD) != COMPILER_GMQCC) {
2712 if (parsewarning(parser, WARN_EXTENSIONS,
2713 "current standard does not allow variable declarations in for-loop initializers"))
2717 if (!parse_variable(parser, block, true, CV_VAR, typevar, false, false, 0, NULL))
2720 else if (parser->tok != ';')
2722 initexpr = parse_expression_leave(parser, false, false, false);
2727 /* move on to condition */
2728 if (parser->tok != ';') {
2729 parseerror(parser, "expected semicolon after for-loop initializer");
2732 if (!parser_next(parser)) {
2733 parseerror(parser, "expected for-loop condition");
2737 /* parse the condition */
2738 if (parser->tok != ';') {
2739 cond = parse_expression_leave(parser, false, true, false);
2744 /* move on to incrementor */
2745 if (parser->tok != ';') {
2746 parseerror(parser, "expected semicolon after for-loop initializer");
2749 if (!parser_next(parser)) {
2750 parseerror(parser, "expected for-loop condition");
2754 /* parse the incrementor */
2755 if (parser->tok != ')') {
2756 lex_ctx condctx = parser_ctx(parser);
2757 increment = parse_expression_leave(parser, false, false, false);
2760 if (!ast_side_effects(increment)) {
2761 if (compile_warning(condctx, WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
2767 if (parser->tok != ')') {
2768 parseerror(parser, "expected closing paren after 'for-loop' incrementor");
2771 /* parse into the 'then' branch */
2772 if (!parser_next(parser)) {
2773 parseerror(parser, "expected for-loop body");
2776 if (!parse_statement_or_block(parser, &ontrue))
2780 cond = process_condition(parser, cond, &ifnot);
2784 aloop = ast_loop_new(ctx, initexpr, cond, ifnot, NULL, false, increment, ontrue);
2785 *out = (ast_expression*)aloop;
2787 if (!parser_leaveblock(parser))
2791 if (initexpr) ast_delete(initexpr);
2792 if (cond) ast_delete(cond);
2793 if (increment) ast_delete(increment);
2794 (void)!parser_leaveblock(parser);
2798 static bool parse_return(parser_t *parser, ast_block *block, ast_expression **out)
2800 ast_expression *exp = NULL;
2801 ast_return *ret = NULL;
2802 ast_value *expected = parser->function->vtype;
2804 lex_ctx ctx = parser_ctx(parser);
2806 (void)block; /* not touching */
2808 if (!parser_next(parser)) {
2809 parseerror(parser, "expected return expression");
2813 if (parser->tok != ';') {
2814 exp = parse_expression(parser, false, false);
2818 if (exp->expression.vtype != TYPE_NIL &&
2819 exp->expression.vtype != expected->expression.next->expression.vtype)
2821 parseerror(parser, "return with invalid expression");
2824 ret = ast_return_new(ctx, exp);
2830 if (!parser_next(parser))
2831 parseerror(parser, "parse error");
2832 if (expected->expression.next->expression.vtype != TYPE_VOID) {
2833 (void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value");
2835 ret = ast_return_new(ctx, NULL);
2837 *out = (ast_expression*)ret;
2841 static bool parse_break_continue(parser_t *parser, ast_block *block, ast_expression **out, bool is_continue)
2844 unsigned int levels = 0;
2845 lex_ctx ctx = parser_ctx(parser);
2846 const char **loops = (is_continue ? parser->continues : parser->breaks);
2848 (void)block; /* not touching */
2849 if (!parser_next(parser)) {
2850 parseerror(parser, "expected semicolon or loop label");
2854 if (!vec_size(loops)) {
2856 parseerror(parser, "`continue` can only be used inside loops");
2858 parseerror(parser, "`break` can only be used inside loops or switches");
2861 if (parser->tok == TOKEN_IDENT) {
2862 if (!OPTS_FLAG(LOOP_LABELS))
2863 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2864 i = vec_size(loops);
2866 if (loops[i] && !strcmp(loops[i], parser_tokval(parser)))
2869 parseerror(parser, "no such loop to %s: `%s`",
2870 (is_continue ? "continue" : "break out of"),
2871 parser_tokval(parser));
2876 if (!parser_next(parser)) {
2877 parseerror(parser, "expected semicolon");
2882 if (parser->tok != ';') {
2883 parseerror(parser, "expected semicolon");
2887 if (!parser_next(parser))
2888 parseerror(parser, "parse error");
2890 *out = (ast_expression*)ast_breakcont_new(ctx, is_continue, levels);
2894 /* returns true when it was a variable qualifier, false otherwise!
2895 * on error, cvq is set to CV_WRONG
2897 static bool parse_qualifiers(parser_t *parser, bool with_local, int *cvq, bool *noref, bool *is_static, uint32_t *_flags, char **message)
2899 bool had_const = false;
2900 bool had_var = false;
2901 bool had_noref = false;
2902 bool had_attrib = false;
2903 bool had_static = false;
2908 if (parser->tok == TOKEN_ATTRIBUTE_OPEN) {
2910 /* parse an attribute */
2911 if (!parser_next(parser)) {
2912 parseerror(parser, "expected attribute after `[[`");
2916 if (!strcmp(parser_tokval(parser), "noreturn")) {
2917 flags |= AST_FLAG_NORETURN;
2918 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2919 parseerror(parser, "`noreturn` attribute has no parameters, expected `]]`");
2924 else if (!strcmp(parser_tokval(parser), "noref")) {
2926 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2927 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2932 else if (!strcmp(parser_tokval(parser), "inline")) {
2933 flags |= AST_FLAG_INLINE;
2934 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2935 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2940 else if (!strcmp(parser_tokval(parser), "alias") && !(flags & AST_FLAG_ALIAS)) {
2941 flags |= AST_FLAG_ALIAS;
2944 if (!parser_next(parser)) {
2945 parseerror(parser, "parse error in attribute");
2949 if (parser->tok == '(') {
2950 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
2951 parseerror(parser, "`alias` attribute missing parameter");
2955 *message = util_strdup(parser_tokval(parser));
2957 if (!parser_next(parser)) {
2958 parseerror(parser, "parse error in attribute");
2962 if (parser->tok != ')') {
2963 parseerror(parser, "`alias` attribute expected `)` after parameter");
2967 if (!parser_next(parser)) {
2968 parseerror(parser, "parse error in attribute");
2973 if (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2974 parseerror(parser, "`alias` attribute expected `]]`");
2978 else if (!strcmp(parser_tokval(parser), "deprecated") && !(flags & AST_FLAG_DEPRECATED)) {
2979 flags |= AST_FLAG_DEPRECATED;
2982 if (!parser_next(parser)) {
2983 parseerror(parser, "parse error in attribute");
2987 if (parser->tok == '(') {
2988 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
2989 parseerror(parser, "`deprecated` attribute missing parameter");
2993 *message = util_strdup(parser_tokval(parser));
2995 if (!parser_next(parser)) {
2996 parseerror(parser, "parse error in attribute");
3000 if(parser->tok != ')') {
3001 parseerror(parser, "`deprecated` attribute expected `)` after parameter");
3005 if (!parser_next(parser)) {
3006 parseerror(parser, "parse error in attribute");
3011 if (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
3012 parseerror(parser, "`deprecated` attribute expected `]]`");
3015 if (*message) mem_d(*message);
3023 /* Skip tokens until we hit a ]] */
3024 (void)!parsewarning(parser, WARN_UNKNOWN_ATTRIBUTE, "unknown attribute starting with `%s`", parser_tokval(parser));
3025 while (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
3026 if (!parser_next(parser)) {
3027 parseerror(parser, "error inside attribute");
3034 else if (with_local && !strcmp(parser_tokval(parser), "static"))
3036 else if (!strcmp(parser_tokval(parser), "const"))
3038 else if (!strcmp(parser_tokval(parser), "var"))
3040 else if (with_local && !strcmp(parser_tokval(parser), "local"))
3042 else if (!strcmp(parser_tokval(parser), "noref"))
3044 else if (!had_const && !had_var && !had_noref && !had_attrib && !had_static && !flags) {
3049 if (!parser_next(parser))
3059 *is_static = had_static;
3063 parseerror(parser, "parse error after variable qualifier");
3068 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out);
3069 static bool parse_switch(parser_t *parser, ast_block *block, ast_expression **out)
3074 /* skip the 'while' and get the body */
3075 if (!parser_next(parser)) {
3076 if (OPTS_FLAG(LOOP_LABELS))
3077 parseerror(parser, "expected loop label or 'switch' operand in parenthesis");
3079 parseerror(parser, "expected 'switch' operand in parenthesis");
3083 if (parser->tok == ':') {
3084 if (!OPTS_FLAG(LOOP_LABELS))
3085 parseerror(parser, "labeled loops not activated, try using -floop-labels");
3086 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
3087 parseerror(parser, "expected loop label");
3090 label = util_strdup(parser_tokval(parser));
3091 if (!parser_next(parser)) {
3093 parseerror(parser, "expected 'switch' operand in parenthesis");
3098 if (parser->tok != '(') {
3099 parseerror(parser, "expected 'switch' operand in parenthesis");
3103 vec_push(parser->breaks, label);
3105 rv = parse_switch_go(parser, block, out);
3108 if (vec_last(parser->breaks) != label) {
3109 parseerror(parser, "internal error: label stack corrupted");
3115 vec_pop(parser->breaks);
3120 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out)
3122 ast_expression *operand;
3125 ast_switch *switchnode;
3126 ast_switch_case swcase;
3129 bool noref, is_static;
3130 uint32_t qflags = 0;
3132 lex_ctx ctx = parser_ctx(parser);
3134 (void)block; /* not touching */
3137 /* parse into the expression */
3138 if (!parser_next(parser)) {
3139 parseerror(parser, "expected switch operand");
3142 /* parse the operand */
3143 operand = parse_expression_leave(parser, false, false, false);
3147 switchnode = ast_switch_new(ctx, operand);
3150 if (parser->tok != ')') {
3151 ast_delete(switchnode);
3152 parseerror(parser, "expected closing paren after 'switch' operand");
3156 /* parse over the opening paren */
3157 if (!parser_next(parser) || parser->tok != '{') {
3158 ast_delete(switchnode);
3159 parseerror(parser, "expected list of cases");
3163 if (!parser_next(parser)) {
3164 ast_delete(switchnode);
3165 parseerror(parser, "expected 'case' or 'default'");
3169 /* new block; allow some variables to be declared here */
3170 parser_enterblock(parser);
3173 if (parser->tok == TOKEN_IDENT)
3174 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
3175 if (typevar || parser->tok == TOKEN_TYPENAME) {
3176 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL)) {
3177 ast_delete(switchnode);
3182 if (parse_qualifiers(parser, true, &cvq, &noref, &is_static, &qflags, NULL))
3184 if (cvq == CV_WRONG) {
3185 ast_delete(switchnode);
3188 if (!parse_variable(parser, block, false, cvq, NULL, noref, is_static, qflags, NULL)) {
3189 ast_delete(switchnode);
3198 while (parser->tok != '}') {
3199 ast_block *caseblock;
3201 if (!strcmp(parser_tokval(parser), "case")) {
3202 if (!parser_next(parser)) {
3203 ast_delete(switchnode);
3204 parseerror(parser, "expected expression for case");
3207 swcase.value = parse_expression_leave(parser, false, false, false);
3208 if (!swcase.value) {
3209 ast_delete(switchnode);
3210 parseerror(parser, "expected expression for case");
3213 if (!OPTS_FLAG(RELAXED_SWITCH)) {
3214 if (!ast_istype(swcase.value, ast_value)) { /* || ((ast_value*)swcase.value)->cvq != CV_CONST) { */
3215 parseerror(parser, "case on non-constant values need to be explicitly enabled via -frelaxed-switch");
3221 else if (!strcmp(parser_tokval(parser), "default")) {
3222 swcase.value = NULL;
3223 if (!parser_next(parser)) {
3224 ast_delete(switchnode);
3225 parseerror(parser, "expected colon");
3230 ast_delete(switchnode);
3231 parseerror(parser, "expected 'case' or 'default'");
3235 /* Now the colon and body */
3236 if (parser->tok != ':') {
3237 if (swcase.value) ast_unref(swcase.value);
3238 ast_delete(switchnode);
3239 parseerror(parser, "expected colon");
3243 if (!parser_next(parser)) {
3244 if (swcase.value) ast_unref(swcase.value);
3245 ast_delete(switchnode);
3246 parseerror(parser, "expected statements or case");
3249 caseblock = ast_block_new(parser_ctx(parser));
3251 if (swcase.value) ast_unref(swcase.value);
3252 ast_delete(switchnode);
3255 swcase.code = (ast_expression*)caseblock;
3256 vec_push(switchnode->cases, swcase);
3258 ast_expression *expr;
3259 if (parser->tok == '}')
3261 if (parser->tok == TOKEN_KEYWORD) {
3262 if (!strcmp(parser_tokval(parser), "case") ||
3263 !strcmp(parser_tokval(parser), "default"))
3268 if (!parse_statement(parser, caseblock, &expr, true)) {
3269 ast_delete(switchnode);
3274 if (!ast_block_add_expr(caseblock, expr)) {
3275 ast_delete(switchnode);
3281 parser_leaveblock(parser);
3284 if (parser->tok != '}') {
3285 ast_delete(switchnode);
3286 parseerror(parser, "expected closing paren of case list");
3289 if (!parser_next(parser)) {
3290 ast_delete(switchnode);
3291 parseerror(parser, "parse error after switch");
3294 *out = (ast_expression*)switchnode;
3298 /* parse computed goto sides */
3299 static ast_expression *parse_goto_computed(parser_t *parser, ast_expression **side) {
3300 ast_expression *on_true;
3301 ast_expression *on_false;
3302 ast_expression *cond;
3307 if (ast_istype(*side, ast_ternary)) {
3308 ast_ternary *tern = (ast_ternary*)*side;
3309 on_true = parse_goto_computed(parser, &tern->on_true);
3310 on_false = parse_goto_computed(parser, &tern->on_false);
3312 if (!on_true || !on_false) {
3313 parseerror(parser, "expected label or expression in ternary");
3314 if (on_true) ast_unref(on_true);
3315 if (on_false) ast_unref(on_false);
3323 return (ast_expression*)ast_ifthen_new(parser_ctx(parser), cond, on_true, on_false);
3324 } else if (ast_istype(*side, ast_label)) {
3325 ast_goto *gt = ast_goto_new(parser_ctx(parser), ((ast_label*)*side)->name);
3326 ast_goto_set_label(gt, ((ast_label*)*side));
3328 return (ast_expression*)gt;
3333 static bool parse_goto(parser_t *parser, ast_expression **out)
3335 ast_goto *gt = NULL;
3336 ast_expression *lbl;
3338 if (!parser_next(parser))
3341 if (parser->tok != TOKEN_IDENT) {
3342 ast_expression *expression;
3344 /* could be an expression i.e computed goto :-) */
3345 if (parser->tok != '(') {
3346 parseerror(parser, "expected label name after `goto`");
3350 /* failed to parse expression for goto */
3351 if (!(expression = parse_expression(parser, false, true)) ||
3352 !(*out = parse_goto_computed(parser, &expression))) {
3353 parseerror(parser, "invalid goto expression");
3354 ast_unref(expression);
3361 /* not computed goto */
3362 gt = ast_goto_new(parser_ctx(parser), parser_tokval(parser));
3363 lbl = parser_find_label(parser, gt->name);
3365 if (!ast_istype(lbl, ast_label)) {
3366 parseerror(parser, "internal error: label is not an ast_label");
3370 ast_goto_set_label(gt, (ast_label*)lbl);
3373 vec_push(parser->gotos, gt);
3375 if (!parser_next(parser) || parser->tok != ';') {
3376 parseerror(parser, "semicolon expected after goto label");
3379 if (!parser_next(parser)) {
3380 parseerror(parser, "parse error after goto");
3384 *out = (ast_expression*)gt;
3388 static bool parse_skipwhite(parser_t *parser)
3391 if (!parser_next(parser))
3393 } while (parser->tok == TOKEN_WHITE && parser->tok < TOKEN_ERROR);
3394 return parser->tok < TOKEN_ERROR;
3397 static bool parse_eol(parser_t *parser)
3399 if (!parse_skipwhite(parser))
3401 return parser->tok == TOKEN_EOL;
3404 static bool parse_pragma_do(parser_t *parser)
3406 if (!parser_next(parser) ||
3407 parser->tok != TOKEN_IDENT ||
3408 strcmp(parser_tokval(parser), "pragma"))
3410 parseerror(parser, "expected `pragma` keyword after `#`, got `%s`", parser_tokval(parser));
3413 if (!parse_skipwhite(parser) || parser->tok != TOKEN_IDENT) {
3414 parseerror(parser, "expected pragma, got `%s`", parser_tokval(parser));
3418 if (!strcmp(parser_tokval(parser), "noref")) {
3419 if (!parse_skipwhite(parser) || parser->tok != TOKEN_INTCONST) {
3420 parseerror(parser, "`noref` pragma requires an argument: 0 or 1");
3423 parser->noref = !!parser_token(parser)->constval.i;
3424 if (!parse_eol(parser)) {
3425 parseerror(parser, "parse error after `noref` pragma");
3431 (void)!parsewarning(parser, WARN_UNKNOWN_PRAGMAS, "ignoring #pragma %s", parser_tokval(parser));
3438 static bool parse_pragma(parser_t *parser)
3441 parser->lex->flags.preprocessing = true;
3442 parser->lex->flags.mergelines = true;
3443 rv = parse_pragma_do(parser);
3444 if (parser->tok != TOKEN_EOL) {
3445 parseerror(parser, "junk after pragma");
3448 parser->lex->flags.preprocessing = false;
3449 parser->lex->flags.mergelines = false;
3450 if (!parser_next(parser)) {
3451 parseerror(parser, "parse error after pragma");
3457 static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases)
3459 bool noref, is_static;
3461 uint32_t qflags = 0;
3462 ast_value *typevar = NULL;
3463 char *vstring = NULL;
3467 if (parser->tok == TOKEN_IDENT)
3468 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
3470 if (typevar || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
3472 /* local variable */
3474 parseerror(parser, "cannot declare a variable from here");
3477 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
3478 if (parsewarning(parser, WARN_EXTENSIONS, "missing 'local' keyword when declaring a local variable"))
3481 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL))
3485 else if (parse_qualifiers(parser, !!block, &cvq, &noref, &is_static, &qflags, &vstring))
3487 if (cvq == CV_WRONG)
3489 return parse_variable(parser, block, true, cvq, NULL, noref, is_static, qflags, vstring);
3491 else if (parser->tok == TOKEN_KEYWORD)
3493 if (!strcmp(parser_tokval(parser), "__builtin_debug_printtype"))
3498 if (!parser_next(parser)) {
3499 parseerror(parser, "parse error after __builtin_debug_printtype");
3503 if (parser->tok == TOKEN_IDENT && (tdef = parser_find_typedef(parser, parser_tokval(parser), 0)))
3505 ast_type_to_string((ast_expression*)tdef, ty, sizeof(ty));
3506 con_out("__builtin_debug_printtype: `%s`=`%s`\n", tdef->name, ty);
3507 if (!parser_next(parser)) {
3508 parseerror(parser, "parse error after __builtin_debug_printtype typename argument");
3514 if (!parse_statement(parser, block, out, allow_cases))
3517 con_out("__builtin_debug_printtype: got no output node\n");
3520 ast_type_to_string(*out, ty, sizeof(ty));
3521 con_out("__builtin_debug_printtype: `%s`\n", ty);
3526 else if (!strcmp(parser_tokval(parser), "return"))
3528 return parse_return(parser, block, out);
3530 else if (!strcmp(parser_tokval(parser), "if"))
3532 return parse_if(parser, block, out);
3534 else if (!strcmp(parser_tokval(parser), "while"))
3536 return parse_while(parser, block, out);
3538 else if (!strcmp(parser_tokval(parser), "do"))
3540 return parse_dowhile(parser, block, out);
3542 else if (!strcmp(parser_tokval(parser), "for"))
3544 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
3545 if (parsewarning(parser, WARN_EXTENSIONS, "for loops are not recognized in the original Quake C standard, to enable try an alternate standard --std=?"))
3548 return parse_for(parser, block, out);
3550 else if (!strcmp(parser_tokval(parser), "break"))
3552 return parse_break_continue(parser, block, out, false);
3554 else if (!strcmp(parser_tokval(parser), "continue"))
3556 return parse_break_continue(parser, block, out, true);
3558 else if (!strcmp(parser_tokval(parser), "switch"))
3560 return parse_switch(parser, block, out);
3562 else if (!strcmp(parser_tokval(parser), "case") ||
3563 !strcmp(parser_tokval(parser), "default"))
3566 parseerror(parser, "unexpected 'case' label");
3571 else if (!strcmp(parser_tokval(parser), "goto"))
3573 return parse_goto(parser, out);
3575 else if (!strcmp(parser_tokval(parser), "typedef"))
3577 if (!parser_next(parser)) {
3578 parseerror(parser, "expected type definition after 'typedef'");
3581 return parse_typedef(parser);
3583 parseerror(parser, "Unexpected keyword");
3586 else if (parser->tok == '{')
3589 inner = parse_block(parser);
3592 *out = (ast_expression*)inner;
3595 else if (parser->tok == ':')
3599 if (!parser_next(parser)) {
3600 parseerror(parser, "expected label name");
3603 if (parser->tok != TOKEN_IDENT) {
3604 parseerror(parser, "label must be an identifier");
3607 label = (ast_label*)parser_find_label(parser, parser_tokval(parser));
3609 if (!label->undefined) {
3610 parseerror(parser, "label `%s` already defined", label->name);
3613 label->undefined = false;
3616 label = ast_label_new(parser_ctx(parser), parser_tokval(parser), false);
3617 vec_push(parser->labels, label);
3619 *out = (ast_expression*)label;
3620 if (!parser_next(parser)) {
3621 parseerror(parser, "parse error after label");
3624 for (i = 0; i < vec_size(parser->gotos); ++i) {
3625 if (!strcmp(parser->gotos[i]->name, label->name)) {
3626 ast_goto_set_label(parser->gotos[i], label);
3627 vec_remove(parser->gotos, i, 1);
3633 else if (parser->tok == ';')
3635 if (!parser_next(parser)) {
3636 parseerror(parser, "parse error after empty statement");
3643 lex_ctx ctx = parser_ctx(parser);
3644 ast_expression *exp = parse_expression(parser, false, false);
3648 if (!ast_side_effects(exp)) {
3649 if (compile_warning(ctx, WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
3656 static bool parse_enum(parser_t *parser)
3659 ast_value **values = NULL;
3660 ast_value *var = NULL;
3663 ast_expression *old;
3665 if (!parser_next(parser) || parser->tok != '{') {
3666 parseerror(parser, "expected `{` after `enum` keyword");
3671 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
3672 if (parser->tok == '}') {
3673 /* allow an empty enum */
3676 parseerror(parser, "expected identifier or `}`");
3680 old = parser_find_field(parser, parser_tokval(parser));
3682 old = parser_find_global(parser, parser_tokval(parser));
3684 parseerror(parser, "value `%s` has already been declared here: %s:%i",
3685 parser_tokval(parser), ast_ctx(old).file, ast_ctx(old).line);
3689 var = ast_value_new(parser_ctx(parser), parser_tokval(parser), TYPE_FLOAT);
3690 vec_push(values, var);
3691 var->cvq = CV_CONST;
3692 var->hasvalue = true;
3693 var->constval.vfloat = num++;
3695 parser_addglobal(parser, var->name, (ast_expression*)var);
3697 if (!parser_next(parser)) {
3698 parseerror(parser, "expected `=`, `}` or comma after identifier");
3702 if (parser->tok == ',')
3704 if (parser->tok == '}')
3706 if (parser->tok != '=') {
3707 parseerror(parser, "expected `=`, `}` or comma after identifier");
3711 if (!parser_next(parser)) {
3712 parseerror(parser, "expected expression after `=`");
3716 /* We got a value! */
3717 old = parse_expression_leave(parser, true, false, false);
3718 asvalue = (ast_value*)old;
3719 if (!ast_istype(old, ast_value) || asvalue->cvq != CV_CONST || !asvalue->hasvalue) {
3720 compile_error(ast_ctx(var), "constant value or expression expected");
3723 num = (var->constval.vfloat = asvalue->constval.vfloat) + 1;
3725 if (parser->tok == '}')
3727 if (parser->tok != ',') {
3728 parseerror(parser, "expected `}` or comma after expression");
3733 if (parser->tok != '}') {
3734 parseerror(parser, "internal error: breaking without `}`");
3738 if (!parser_next(parser) || parser->tok != ';') {
3739 parseerror(parser, "expected semicolon after enumeration");
3743 if (!parser_next(parser)) {
3744 parseerror(parser, "parse error after enumeration");
3756 static bool parse_block_into(parser_t *parser, ast_block *block)
3760 parser_enterblock(parser);
3762 if (!parser_next(parser)) { /* skip the '{' */
3763 parseerror(parser, "expected function body");
3767 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
3769 ast_expression *expr = NULL;
3770 if (parser->tok == '}')
3773 if (!parse_statement(parser, block, &expr, false)) {
3774 /* parseerror(parser, "parse error"); */
3780 if (!ast_block_add_expr(block, expr)) {
3787 if (parser->tok != '}') {
3790 (void)parser_next(parser);
3794 if (!parser_leaveblock(parser))
3796 return retval && !!block;
3799 static ast_block* parse_block(parser_t *parser)
3802 block = ast_block_new(parser_ctx(parser));
3805 if (!parse_block_into(parser, block)) {
3806 ast_block_delete(block);
3812 static bool parse_statement_or_block(parser_t *parser, ast_expression **out)
3814 if (parser->tok == '{') {
3815 *out = (ast_expression*)parse_block(parser);
3818 return parse_statement(parser, NULL, out, false);
3821 static bool create_vector_members(ast_value *var, ast_member **me)
3824 size_t len = strlen(var->name);
3826 for (i = 0; i < 3; ++i) {
3827 char *name = (char*)mem_a(len+3);
3828 memcpy(name, var->name, len);
3830 name[len+1] = 'x'+i;
3832 me[i] = ast_member_new(ast_ctx(var), (ast_expression*)var, i, name);
3841 do { ast_member_delete(me[--i]); } while(i);
3845 static bool parse_function_body(parser_t *parser, ast_value *var)
3847 ast_block *block = NULL;
3852 ast_expression *framenum = NULL;
3853 ast_expression *nextthink = NULL;
3854 /* None of the following have to be deleted */
3855 ast_expression *fld_think = NULL, *fld_nextthink = NULL, *fld_frame = NULL;
3856 ast_expression *gbl_time = NULL, *gbl_self = NULL;
3857 bool has_frame_think;
3861 has_frame_think = false;
3862 old = parser->function;
3864 if (var->expression.flags & AST_FLAG_ALIAS) {
3865 parseerror(parser, "function aliases cannot have bodies");
3869 if (vec_size(parser->gotos) || vec_size(parser->labels)) {
3870 parseerror(parser, "gotos/labels leaking");
3874 if (!OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC) {
3875 if (parsewarning(parser, WARN_VARIADIC_FUNCTION,
3876 "variadic function with implementation will not be able to access additional parameters (try -fvariadic-args)"))
3882 if (parser->tok == '[') {
3883 /* got a frame definition: [ framenum, nextthink ]
3884 * this translates to:
3885 * self.frame = framenum;
3886 * self.nextthink = time + 0.1;
3887 * self.think = nextthink;
3891 fld_think = parser_find_field(parser, "think");
3892 fld_nextthink = parser_find_field(parser, "nextthink");
3893 fld_frame = parser_find_field(parser, "frame");
3894 if (!fld_think || !fld_nextthink || !fld_frame) {
3895 parseerror(parser, "cannot use [frame,think] notation without the required fields");
3896 parseerror(parser, "please declare the following entityfields: `frame`, `think`, `nextthink`");
3899 gbl_time = parser_find_global(parser, "time");
3900 gbl_self = parser_find_global(parser, "self");
3901 if (!gbl_time || !gbl_self) {
3902 parseerror(parser, "cannot use [frame,think] notation without the required globals");
3903 parseerror(parser, "please declare the following globals: `time`, `self`");
3907 if (!parser_next(parser))
3910 framenum = parse_expression_leave(parser, true, false, false);
3912 parseerror(parser, "expected a framenumber constant in[frame,think] notation");
3915 if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->hasvalue) {
3916 ast_unref(framenum);
3917 parseerror(parser, "framenumber in [frame,think] notation must be a constant");
3921 if (parser->tok != ',') {
3922 ast_unref(framenum);
3923 parseerror(parser, "expected comma after frame number in [frame,think] notation");
3924 parseerror(parser, "Got a %i\n", parser->tok);
3928 if (!parser_next(parser)) {
3929 ast_unref(framenum);
3933 if (parser->tok == TOKEN_IDENT && !parser_find_var(parser, parser_tokval(parser)))
3935 /* qc allows the use of not-yet-declared functions here
3936 * - this automatically creates a prototype */
3937 ast_value *thinkfunc;
3938 ast_expression *functype = fld_think->expression.next;
3940 thinkfunc = ast_value_new(parser_ctx(parser), parser_tokval(parser), functype->expression.vtype);
3941 if (!thinkfunc) { /* || !ast_type_adopt(thinkfunc, functype)*/
3942 ast_unref(framenum);
3943 parseerror(parser, "failed to create implicit prototype for `%s`", parser_tokval(parser));
3946 ast_type_adopt(thinkfunc, functype);
3948 if (!parser_next(parser)) {
3949 ast_unref(framenum);
3950 ast_delete(thinkfunc);
3954 parser_addglobal(parser, thinkfunc->name, (ast_expression*)thinkfunc);
3956 nextthink = (ast_expression*)thinkfunc;
3959 nextthink = parse_expression_leave(parser, true, false, false);
3961 ast_unref(framenum);
3962 parseerror(parser, "expected a think-function in [frame,think] notation");
3967 if (!ast_istype(nextthink, ast_value)) {
3968 parseerror(parser, "think-function in [frame,think] notation must be a constant");
3972 if (retval && parser->tok != ']') {
3973 parseerror(parser, "expected closing `]` for [frame,think] notation");
3977 if (retval && !parser_next(parser)) {
3981 if (retval && parser->tok != '{') {
3982 parseerror(parser, "a function body has to be declared after a [frame,think] declaration");
3987 ast_unref(nextthink);
3988 ast_unref(framenum);
3992 has_frame_think = true;
3995 block = ast_block_new(parser_ctx(parser));
3997 parseerror(parser, "failed to allocate block");
3998 if (has_frame_think) {
3999 ast_unref(nextthink);
4000 ast_unref(framenum);
4005 if (has_frame_think) {
4007 ast_expression *self_frame;
4008 ast_expression *self_nextthink;
4009 ast_expression *self_think;
4010 ast_expression *time_plus_1;
4011 ast_store *store_frame;
4012 ast_store *store_nextthink;
4013 ast_store *store_think;
4015 ctx = parser_ctx(parser);
4016 self_frame = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_frame);
4017 self_nextthink = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_nextthink);
4018 self_think = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_think);
4020 time_plus_1 = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F,
4021 gbl_time, (ast_expression*)parser_const_float(parser, 0.1));
4023 if (!self_frame || !self_nextthink || !self_think || !time_plus_1) {
4024 if (self_frame) ast_delete(self_frame);
4025 if (self_nextthink) ast_delete(self_nextthink);
4026 if (self_think) ast_delete(self_think);
4027 if (time_plus_1) ast_delete(time_plus_1);
4033 store_frame = ast_store_new(ctx, INSTR_STOREP_F, self_frame, framenum);
4034 store_nextthink = ast_store_new(ctx, INSTR_STOREP_F, self_nextthink, time_plus_1);
4035 store_think = ast_store_new(ctx, INSTR_STOREP_FNC, self_think, nextthink);
4038 ast_delete(self_frame);
4041 if (!store_nextthink) {
4042 ast_delete(self_nextthink);
4046 ast_delete(self_think);
4050 if (store_frame) ast_delete(store_frame);
4051 if (store_nextthink) ast_delete(store_nextthink);
4052 if (store_think) ast_delete(store_think);
4055 if (!ast_block_add_expr(block, (ast_expression*)store_frame) ||
4056 !ast_block_add_expr(block, (ast_expression*)store_nextthink) ||
4057 !ast_block_add_expr(block, (ast_expression*)store_think))
4064 parseerror(parser, "failed to generate code for [frame,think]");
4065 ast_unref(nextthink);
4066 ast_unref(framenum);
4072 if (var->hasvalue) {
4073 parseerror(parser, "function `%s` declared with multiple bodies", var->name);
4074 ast_block_delete(block);
4078 func = ast_function_new(ast_ctx(var), var->name, var);
4080 parseerror(parser, "failed to allocate function for `%s`", var->name);
4081 ast_block_delete(block);
4084 vec_push(parser->functions, func);
4086 parser_enterblock(parser);
4088 for (parami = 0; parami < vec_size(var->expression.params); ++parami) {
4090 ast_value *param = var->expression.params[parami];
4093 if (param->expression.vtype != TYPE_VECTOR &&
4094 (param->expression.vtype != TYPE_FIELD ||
4095 param->expression.next->expression.vtype != TYPE_VECTOR))
4100 if (!create_vector_members(param, me)) {
4101 ast_block_delete(block);
4105 for (e = 0; e < 3; ++e) {
4106 parser_addlocal(parser, me[e]->name, (ast_expression*)me[e]);
4107 ast_block_collect(block, (ast_expression*)me[e]);
4111 if (var->argcounter) {
4112 ast_value *argc = ast_value_new(ast_ctx(var), var->argcounter, TYPE_FLOAT);
4113 parser_addlocal(parser, argc->name, (ast_expression*)argc);
4117 if (OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC) {
4119 ast_value *varargs = ast_value_new(ast_ctx(var), "reserved:va_args", TYPE_ARRAY);
4120 varargs->expression.flags |= AST_FLAG_IS_VARARG;
4121 varargs->expression.next = (ast_expression*)ast_value_new(ast_ctx(var), NULL, TYPE_VECTOR);
4122 varargs->expression.count = 0;
4123 snprintf(name, sizeof(name), "%s##va##SET", var->name);
4124 if (!parser_create_array_setter_proto(parser, varargs, name)) {
4125 ast_delete(varargs);
4126 ast_block_delete(block);
4129 snprintf(name, sizeof(name), "%s##va##GET", var->name);
4130 if (!parser_create_array_getter_proto(parser, varargs, varargs->expression.next, name)) {
4131 ast_delete(varargs);
4132 ast_block_delete(block);
4135 func->varargs = varargs;
4137 func->fixedparams = parser_const_float(parser, vec_size(var->expression.params));
4140 parser->function = func;
4141 if (!parse_block_into(parser, block)) {
4142 ast_block_delete(block);
4146 vec_push(func->blocks, block);
4148 parser->function = old;
4149 if (!parser_leaveblock(parser))
4151 if (vec_size(parser->variables) != PARSER_HT_LOCALS) {
4152 parseerror(parser, "internal error: local scopes left");
4156 if (parser->tok == ';')
4157 return parser_next(parser);
4158 else if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
4159 parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)");
4163 (void)!parser_leaveblock(parser);
4164 vec_pop(parser->functions);
4165 ast_function_delete(func);
4166 var->constval.vfunc = NULL;
4169 parser->function = old;
4173 static ast_expression *array_accessor_split(
4178 ast_expression *left,
4179 ast_expression *right
4185 lex_ctx ctx = ast_ctx(array);
4187 if (!left || !right) {
4188 if (left) ast_delete(left);
4189 if (right) ast_delete(right);
4193 cmp = ast_binary_new(ctx, INSTR_LT,
4194 (ast_expression*)index,
4195 (ast_expression*)parser_const_float(parser, middle));
4199 parseerror(parser, "internal error: failed to create comparison for array setter");
4203 ifthen = ast_ifthen_new(ctx, (ast_expression*)cmp, left, right);
4205 ast_delete(cmp); /* will delete left and right */
4206 parseerror(parser, "internal error: failed to create conditional jump for array setter");
4210 return (ast_expression*)ifthen;
4213 static ast_expression *array_setter_node(parser_t *parser, ast_value *array, ast_value *index, ast_value *value, size_t from, size_t afterend)
4215 lex_ctx ctx = ast_ctx(array);
4217 if (from+1 == afterend) {
4218 /* set this value */
4221 ast_array_index *subscript;
4223 int assignop = type_store_instr[value->expression.vtype];
4225 if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR)
4226 assignop = INSTR_STORE_V;
4228 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
4232 st = ast_store_new(ctx, assignop, (ast_expression*)subscript, (ast_expression*)value);
4234 ast_delete(subscript);
4238 block = ast_block_new(ctx);
4244 if (!ast_block_add_expr(block, (ast_expression*)st)) {
4249 ret = ast_return_new(ctx, NULL);
4255 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
4260 return (ast_expression*)block;
4262 ast_expression *left, *right;
4263 size_t diff = afterend - from;
4264 size_t middle = from + diff/2;
4265 left = array_setter_node(parser, array, index, value, from, middle);
4266 right = array_setter_node(parser, array, index, value, middle, afterend);
4267 return array_accessor_split(parser, array, index, middle, left, right);
4271 static ast_expression *array_field_setter_node(
4280 lex_ctx ctx = ast_ctx(array);
4282 if (from+1 == afterend) {
4283 /* set this value */
4286 ast_entfield *entfield;
4287 ast_array_index *subscript;
4289 int assignop = type_storep_instr[value->expression.vtype];
4291 if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR)
4292 assignop = INSTR_STOREP_V;
4294 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
4298 subscript->expression.next = ast_type_copy(ast_ctx(subscript), (ast_expression*)subscript);
4299 subscript->expression.vtype = TYPE_FIELD;
4301 entfield = ast_entfield_new_force(ctx,
4302 (ast_expression*)entity,
4303 (ast_expression*)subscript,
4304 (ast_expression*)subscript);
4306 ast_delete(subscript);
4310 st = ast_store_new(ctx, assignop, (ast_expression*)entfield, (ast_expression*)value);
4312 ast_delete(entfield);
4316 block = ast_block_new(ctx);
4322 if (!ast_block_add_expr(block, (ast_expression*)st)) {
4327 ret = ast_return_new(ctx, NULL);
4333 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
4338 return (ast_expression*)block;
4340 ast_expression *left, *right;
4341 size_t diff = afterend - from;
4342 size_t middle = from + diff/2;
4343 left = array_field_setter_node(parser, array, entity, index, value, from, middle);
4344 right = array_field_setter_node(parser, array, entity, index, value, middle, afterend);
4345 return array_accessor_split(parser, array, index, middle, left, right);
4349 static ast_expression *array_getter_node(parser_t *parser, ast_value *array, ast_value *index, size_t from, size_t afterend)
4351 lex_ctx ctx = ast_ctx(array);
4353 if (from+1 == afterend) {
4355 ast_array_index *subscript;
4357 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
4361 ret = ast_return_new(ctx, (ast_expression*)subscript);
4363 ast_delete(subscript);
4367 return (ast_expression*)ret;
4369 ast_expression *left, *right;
4370 size_t diff = afterend - from;
4371 size_t middle = from + diff/2;
4372 left = array_getter_node(parser, array, index, from, middle);
4373 right = array_getter_node(parser, array, index, middle, afterend);
4374 return array_accessor_split(parser, array, index, middle, left, right);
4378 static bool parser_create_array_accessor(parser_t *parser, ast_value *array, const char *funcname, ast_value **out)
4380 ast_function *func = NULL;
4381 ast_value *fval = NULL;
4382 ast_block *body = NULL;
4384 fval = ast_value_new(ast_ctx(array), funcname, TYPE_FUNCTION);
4386 parseerror(parser, "failed to create accessor function value");
4390 func = ast_function_new(ast_ctx(array), funcname, fval);
4393 parseerror(parser, "failed to create accessor function node");
4397 body = ast_block_new(ast_ctx(array));
4399 parseerror(parser, "failed to create block for array accessor");
4405 vec_push(func->blocks, body);
4408 vec_push(parser->accessors, fval);
4413 static ast_value* parser_create_array_setter_proto(parser_t *parser, ast_value *array, const char *funcname)
4415 ast_value *index = NULL;
4416 ast_value *value = NULL;
4420 if (!ast_istype(array->expression.next, ast_value)) {
4421 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4425 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4427 func = fval->constval.vfunc;
4428 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
4430 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4431 value = ast_value_copy((ast_value*)array->expression.next);
4433 if (!index || !value) {
4434 parseerror(parser, "failed to create locals for array accessor");
4437 (void)!ast_value_set_name(value, "value"); /* not important */
4438 vec_push(fval->expression.params, index);
4439 vec_push(fval->expression.params, value);
4441 array->setter = fval;
4444 if (index) ast_delete(index);
4445 if (value) ast_delete(value);
4451 static bool parser_create_array_setter_impl(parser_t *parser, ast_value *array)
4453 ast_expression *root = NULL;
4454 root = array_setter_node(parser, array,
4455 array->setter->expression.params[0],
4456 array->setter->expression.params[1],
4457 0, array->expression.count);
4459 parseerror(parser, "failed to build accessor search tree");
4462 if (!ast_block_add_expr(array->setter->constval.vfunc->blocks[0], root)) {
4469 static bool parser_create_array_setter(parser_t *parser, ast_value *array, const char *funcname)
4471 if (!parser_create_array_setter_proto(parser, array, funcname))
4473 return parser_create_array_setter_impl(parser, array);
4476 static bool parser_create_array_field_setter(parser_t *parser, ast_value *array, const char *funcname)
4478 ast_expression *root = NULL;
4479 ast_value *entity = NULL;
4480 ast_value *index = NULL;
4481 ast_value *value = NULL;
4485 if (!ast_istype(array->expression.next, ast_value)) {
4486 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4490 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4492 func = fval->constval.vfunc;
4493 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
4495 entity = ast_value_new(ast_ctx(array), "entity", TYPE_ENTITY);
4496 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4497 value = ast_value_copy((ast_value*)array->expression.next);
4498 if (!entity || !index || !value) {
4499 parseerror(parser, "failed to create locals for array accessor");
4502 (void)!ast_value_set_name(value, "value"); /* not important */
4503 vec_push(fval->expression.params, entity);
4504 vec_push(fval->expression.params, index);
4505 vec_push(fval->expression.params, value);
4507 root = array_field_setter_node(parser, array, entity, index, value, 0, array->expression.count);
4509 parseerror(parser, "failed to build accessor search tree");
4513 array->setter = fval;
4514 return ast_block_add_expr(func->blocks[0], root);
4516 if (entity) ast_delete(entity);
4517 if (index) ast_delete(index);
4518 if (value) ast_delete(value);
4519 if (root) ast_delete(root);
4525 static ast_value* parser_create_array_getter_proto(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
4527 ast_value *index = NULL;
4531 /* NOTE: checking array->expression.next rather than elemtype since
4532 * for fields elemtype is a temporary fieldtype.
4534 if (!ast_istype(array->expression.next, ast_value)) {
4535 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4539 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4541 func = fval->constval.vfunc;
4542 fval->expression.next = ast_type_copy(ast_ctx(array), elemtype);
4544 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4547 parseerror(parser, "failed to create locals for array accessor");
4550 vec_push(fval->expression.params, index);
4552 array->getter = fval;
4555 if (index) ast_delete(index);
4561 static bool parser_create_array_getter_impl(parser_t *parser, ast_value *array)
4563 ast_expression *root = NULL;
4565 root = array_getter_node(parser, array, array->getter->expression.params[0], 0, array->expression.count);
4567 parseerror(parser, "failed to build accessor search tree");
4570 if (!ast_block_add_expr(array->getter->constval.vfunc->blocks[0], root)) {
4577 static bool parser_create_array_getter(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
4579 if (!parser_create_array_getter_proto(parser, array, elemtype, funcname))
4581 return parser_create_array_getter_impl(parser, array);
4584 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
4585 static ast_value *parse_parameter_list(parser_t *parser, ast_value *var)
4593 bool variadic = false;
4594 ast_value *varparam = NULL;
4595 char *argcounter = NULL;
4597 ctx = parser_ctx(parser);
4599 /* for the sake of less code we parse-in in this function */
4600 if (!parser_next(parser)) {
4601 parseerror(parser, "expected parameter list");
4607 /* parse variables until we hit a closing paren */
4608 while (parser->tok != ')') {
4610 /* there must be commas between them */
4611 if (parser->tok != ',') {
4612 parseerror(parser, "expected comma or end of parameter list");
4615 if (!parser_next(parser)) {
4616 parseerror(parser, "expected parameter");
4622 if (parser->tok == TOKEN_DOTS) {
4623 /* '...' indicates a varargs function */
4625 if (!parser_next(parser) || (parser->tok != ')' && parser->tok != TOKEN_IDENT)) {
4626 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4629 if (parser->tok == TOKEN_IDENT) {
4630 argcounter = util_strdup(parser_tokval(parser));
4631 if (!parser_next(parser) || parser->tok != ')') {
4632 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4639 /* for anything else just parse a typename */
4640 param = parse_typename(parser, NULL, NULL);
4643 vec_push(params, param);
4644 if (param->expression.vtype >= TYPE_VARIANT) {
4645 char tname[1024]; /* typename is reserved in C++ */
4646 ast_type_to_string((ast_expression*)param, tname, sizeof(tname));
4647 parseerror(parser, "type not supported as part of a parameter list: %s", tname);
4650 /* type-restricted varargs */
4651 if (parser->tok == TOKEN_DOTS) {
4653 varparam = vec_last(params);
4655 if (!parser_next(parser) || (parser->tok != ')' && parser->tok != TOKEN_IDENT)) {
4656 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4659 if (parser->tok == TOKEN_IDENT) {
4660 argcounter = util_strdup(parser_tokval(parser));
4661 if (!parser_next(parser) || parser->tok != ')') {
4662 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4670 if (vec_size(params) == 1 && params[0]->expression.vtype == TYPE_VOID)
4674 if (vec_size(params) > 8 && OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
4675 (void)!parsewarning(parser, WARN_EXTENSIONS, "more than 8 parameters are not supported by this standard");
4678 if (!parser_next(parser)) {
4679 parseerror(parser, "parse error after typename");
4683 /* now turn 'var' into a function type */
4684 fval = ast_value_new(ctx, "<type()>", TYPE_FUNCTION);
4685 fval->expression.next = (ast_expression*)var;
4687 fval->expression.flags |= AST_FLAG_VARIADIC;
4690 var->expression.params = params;
4691 var->expression.varparam = (ast_expression*)varparam;
4692 var->argcounter = argcounter;
4701 for (i = 0; i < vec_size(params); ++i)
4702 ast_delete(params[i]);
4707 static ast_value *parse_arraysize(parser_t *parser, ast_value *var)
4709 ast_expression *cexp;
4710 ast_value *cval, *tmp;
4713 ctx = parser_ctx(parser);
4715 if (!parser_next(parser)) {
4717 parseerror(parser, "expected array-size");
4721 cexp = parse_expression_leave(parser, true, false, false);
4723 if (!cexp || !ast_istype(cexp, ast_value)) {
4727 parseerror(parser, "expected array-size as constant positive integer");
4730 cval = (ast_value*)cexp;
4732 tmp = ast_value_new(ctx, "<type[]>", TYPE_ARRAY);
4733 tmp->expression.next = (ast_expression*)var;
4736 if (cval->expression.vtype == TYPE_INTEGER)
4737 tmp->expression.count = cval->constval.vint;
4738 else if (cval->expression.vtype == TYPE_FLOAT)
4739 tmp->expression.count = cval->constval.vfloat;
4743 parseerror(parser, "array-size must be a positive integer constant");
4748 if (parser->tok != ']') {
4750 parseerror(parser, "expected ']' after array-size");
4753 if (!parser_next(parser)) {
4755 parseerror(parser, "error after parsing array size");
4761 /* Parse a complete typename.
4762 * for single-variables (ie. function parameters or typedefs) storebase should be NULL
4763 * but when parsing variables separated by comma
4764 * 'storebase' should point to where the base-type should be kept.
4765 * The base type makes up every bit of type information which comes *before* the
4768 * The following will be parsed in its entirety:
4770 * The 'basetype' in this case is 'void()'
4771 * and if there's a comma after it, say:
4773 * then the type-information 'void()' can be stored in 'storebase'
4775 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef)
4777 ast_value *var, *tmp;
4780 const char *name = NULL;
4781 bool isfield = false;
4782 bool wasarray = false;
4783 size_t morefields = 0;
4785 ctx = parser_ctx(parser);
4787 /* types may start with a dot */
4788 if (parser->tok == '.') {
4790 /* if we parsed a dot we need a typename now */
4791 if (!parser_next(parser)) {
4792 parseerror(parser, "expected typename for field definition");
4796 /* Further dots are handled seperately because they won't be part of the
4799 while (parser->tok == '.') {
4801 if (!parser_next(parser)) {
4802 parseerror(parser, "expected typename for field definition");
4807 if (parser->tok == TOKEN_IDENT)
4808 cached_typedef = parser_find_typedef(parser, parser_tokval(parser), 0);
4809 if (!cached_typedef && parser->tok != TOKEN_TYPENAME) {
4810 parseerror(parser, "expected typename");
4814 /* generate the basic type value */
4815 if (cached_typedef) {
4816 var = ast_value_copy(cached_typedef);
4817 ast_value_set_name(var, "<type(from_def)>");
4819 var = ast_value_new(ctx, "<type>", parser_token(parser)->constval.t);
4821 for (; morefields; --morefields) {
4822 tmp = ast_value_new(ctx, "<.type>", TYPE_FIELD);
4823 tmp->expression.next = (ast_expression*)var;
4827 /* do not yet turn into a field - remember:
4828 * .void() foo; is a field too
4829 * .void()() foo; is a function
4833 if (!parser_next(parser)) {
4835 parseerror(parser, "parse error after typename");
4839 /* an opening paren now starts the parameter-list of a function
4840 * this is where original-QC has parameter lists.
4841 * We allow a single parameter list here.
4842 * Much like fteqcc we don't allow `float()() x`
4844 if (parser->tok == '(') {
4845 var = parse_parameter_list(parser, var);
4850 /* store the base if requested */
4852 *storebase = ast_value_copy(var);
4854 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
4855 tmp->expression.next = (ast_expression*)*storebase;
4860 /* there may be a name now */
4861 if (parser->tok == TOKEN_IDENT) {
4862 name = util_strdup(parser_tokval(parser));
4864 if (!parser_next(parser)) {
4866 parseerror(parser, "error after variable or field declaration");
4871 /* now this may be an array */
4872 if (parser->tok == '[') {
4874 var = parse_arraysize(parser, var);
4879 /* This is the point where we can turn it into a field */
4881 /* turn it into a field if desired */
4882 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
4883 tmp->expression.next = (ast_expression*)var;
4887 /* now there may be function parens again */
4888 if (parser->tok == '(' && OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
4889 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4890 if (parser->tok == '(' && wasarray)
4891 parseerror(parser, "arrays as part of a return type is not supported");
4892 while (parser->tok == '(') {
4893 var = parse_parameter_list(parser, var);
4901 /* finally name it */
4903 if (!ast_value_set_name(var, name)) {
4905 parseerror(parser, "internal error: failed to set name");
4908 /* free the name, ast_value_set_name duplicates */
4915 static bool parse_typedef(parser_t *parser)
4917 ast_value *typevar, *oldtype;
4918 ast_expression *old;
4920 typevar = parse_typename(parser, NULL, NULL);
4925 if ( (old = parser_find_var(parser, typevar->name)) ) {
4926 parseerror(parser, "cannot define a type with the same name as a variable: %s\n"
4927 " -> `%s` has been declared here: %s:%i",
4928 typevar->name, ast_ctx(old).file, ast_ctx(old).line);
4929 ast_delete(typevar);
4933 if ( (oldtype = parser_find_typedef(parser, typevar->name, vec_last(parser->_blocktypedefs))) ) {
4934 parseerror(parser, "type `%s` has already been declared here: %s:%i",
4935 typevar->name, ast_ctx(oldtype).file, ast_ctx(oldtype).line);
4936 ast_delete(typevar);
4940 vec_push(parser->_typedefs, typevar);
4941 util_htset(vec_last(parser->typedefs), typevar->name, typevar);
4943 if (parser->tok != ';') {
4944 parseerror(parser, "expected semicolon after typedef");
4947 if (!parser_next(parser)) {
4948 parseerror(parser, "parse error after typedef");
4955 static const char *cvq_to_str(int cvq) {
4957 case CV_NONE: return "none";
4958 case CV_VAR: return "`var`";
4959 case CV_CONST: return "`const`";
4960 default: return "<INVALID>";
4964 static bool parser_check_qualifiers(parser_t *parser, const ast_value *var, const ast_value *proto)
4967 if (proto->cvq != var->cvq) {
4968 if (!(proto->cvq == CV_CONST && var->cvq == CV_NONE &&
4969 !OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
4970 parser->tok == '='))
4972 return !parsewarning(parser, WARN_DIFFERENT_QUALIFIERS,
4973 "`%s` declared with different qualifiers: %s\n"
4974 " -> previous declaration here: %s:%i uses %s",
4975 var->name, cvq_to_str(var->cvq),
4976 ast_ctx(proto).file, ast_ctx(proto).line,
4977 cvq_to_str(proto->cvq));
4980 av = (var ->expression.flags & AST_FLAG_NORETURN);
4981 ao = (proto->expression.flags & AST_FLAG_NORETURN);
4983 return !parsewarning(parser, WARN_DIFFERENT_ATTRIBUTES,
4984 "`%s` declared with different attributes%s\n"
4985 " -> previous declaration here: %s:%i",
4986 var->name, (av ? ": noreturn" : ""),
4987 ast_ctx(proto).file, ast_ctx(proto).line,
4988 (ao ? ": noreturn" : ""));
4993 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)
4997 ast_expression *old;
5001 ast_value *basetype = NULL;
5003 bool isparam = false;
5004 bool isvector = false;
5005 bool cleanvar = true;
5006 bool wasarray = false;
5010 if (!localblock && is_static)
5011 parseerror(parser, "`static` qualifier is not supported in global scope");
5013 /* get the first complete variable */
5014 var = parse_typename(parser, &basetype, cached_typedef);
5017 ast_delete(basetype);
5025 /* Part 0: finish the type */
5026 if (parser->tok == '(') {
5027 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
5028 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
5029 var = parse_parameter_list(parser, var);
5035 /* we only allow 1-dimensional arrays */
5036 if (parser->tok == '[') {
5038 var = parse_arraysize(parser, var);
5044 if (parser->tok == '(' && wasarray) {
5045 parseerror(parser, "arrays as part of a return type is not supported");
5046 /* we'll still parse the type completely for now */
5048 /* for functions returning functions */
5049 while (parser->tok == '(') {
5050 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC)
5051 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
5052 var = parse_parameter_list(parser, var);
5059 var->cvq = qualifier;
5060 var->expression.flags |= qflags;
5063 * store the vstring back to var for alias and
5064 * deprecation messages.
5066 if (var->expression.flags & AST_FLAG_DEPRECATED ||
5067 var->expression.flags & AST_FLAG_ALIAS)
5068 var->desc = vstring;
5071 * check for validity: (end_sys_..., multiple-definitions, prototypes, ...)
5072 * Also: if there was a prototype, `var` will be deleted and set to `proto` which
5073 * is then filled with the previous definition and the parameter-names replaced.
5075 if (!strcmp(var->name, "nil")) {
5076 if (OPTS_FLAG(UNTYPED_NIL)) {
5077 if (!localblock || !OPTS_FLAG(PERMISSIVE))
5078 parseerror(parser, "name `nil` not allowed (try -fpermissive)");
5080 (void)!parsewarning(parser, WARN_RESERVED_NAMES, "variable name `nil` is reserved");
5083 /* Deal with end_sys_ vars */
5085 if (!strcmp(var->name, "end_sys_globals")) {
5087 parser->crc_globals = vec_size(parser->globals);
5090 else if (!strcmp(var->name, "end_sys_fields")) {
5092 parser->crc_fields = vec_size(parser->fields);
5095 if (was_end && var->expression.vtype == TYPE_FIELD) {
5096 if (parsewarning(parser, WARN_END_SYS_FIELDS,
5097 "global '%s' hint should not be a field",
5098 parser_tokval(parser)))
5105 if (!nofields && var->expression.vtype == TYPE_FIELD)
5107 /* deal with field declarations */
5108 old = parser_find_field(parser, var->name);
5110 if (parsewarning(parser, WARN_FIELD_REDECLARED, "field `%s` already declared here: %s:%i",
5111 var->name, ast_ctx(old).file, (int)ast_ctx(old).line))
5120 parseerror(parser, "field `%s` already declared here: %s:%i",
5121 var->name, ast_ctx(old).file, ast_ctx(old).line);
5126 if ((OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC || OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_FTEQCC) &&
5127 (old = parser_find_global(parser, var->name)))
5129 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
5130 parseerror(parser, "field `%s` already declared here: %s:%i",
5131 var->name, ast_ctx(old).file, ast_ctx(old).line);
5138 /* deal with other globals */
5139 old = parser_find_global(parser, var->name);
5140 if (old && var->expression.vtype == TYPE_FUNCTION && old->expression.vtype == TYPE_FUNCTION)
5142 /* This is a function which had a prototype */
5143 if (!ast_istype(old, ast_value)) {
5144 parseerror(parser, "internal error: prototype is not an ast_value");
5148 proto = (ast_value*)old;
5149 proto->desc = var->desc;
5150 if (!ast_compare_type((ast_expression*)proto, (ast_expression*)var)) {
5151 parseerror(parser, "conflicting types for `%s`, previous declaration was here: %s:%i",
5153 ast_ctx(proto).file, ast_ctx(proto).line);
5157 /* we need the new parameter-names */
5158 for (i = 0; i < vec_size(proto->expression.params); ++i)
5159 ast_value_set_name(proto->expression.params[i], var->expression.params[i]->name);
5160 if (!parser_check_qualifiers(parser, var, proto)) {
5167 proto->expression.flags |= var->expression.flags;
5175 if (parsewarning(parser, WARN_DOUBLE_DECLARATION,
5176 "global `%s` already declared here: %s:%i",
5177 var->name, ast_ctx(old).file, ast_ctx(old).line))
5182 proto = (ast_value*)old;
5183 if (!ast_istype(old, ast_value)) {
5184 parseerror(parser, "internal error: not an ast_value");
5189 if (!parser_check_qualifiers(parser, var, proto)) {
5194 proto->expression.flags |= var->expression.flags;
5198 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC &&
5199 (old = parser_find_field(parser, var->name)))
5201 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
5202 parseerror(parser, "global `%s` already declared here: %s:%i",
5203 var->name, ast_ctx(old).file, ast_ctx(old).line);
5210 else /* it's not a global */
5212 old = parser_find_local(parser, var->name, vec_size(parser->variables)-1, &isparam);
5213 if (old && !isparam) {
5214 parseerror(parser, "local `%s` already declared here: %s:%i",
5215 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
5219 old = parser_find_local(parser, var->name, 0, &isparam);
5220 if (old && isparam) {
5221 if (parsewarning(parser, WARN_LOCAL_SHADOWS,
5222 "local `%s` is shadowing a parameter", var->name))
5224 parseerror(parser, "local `%s` already declared here: %s:%i",
5225 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
5229 if (OPTS_OPTION_U32(OPTION_STANDARD) != COMPILER_GMQCC) {
5237 /* in a noref section we simply bump the usecount */
5238 if (noref || parser->noref)
5242 * Create the global/local, and deal with vector types.
5245 if (var->expression.vtype == TYPE_VECTOR)
5247 else if (var->expression.vtype == TYPE_FIELD &&
5248 var->expression.next->expression.vtype == TYPE_VECTOR)
5252 if (!create_vector_members(var, me)) {
5259 /* deal with global variables, fields, functions */
5260 if (!nofields && var->expression.vtype == TYPE_FIELD && parser->tok != '=') {
5261 var->isfield = true;
5262 vec_push(parser->fields, (ast_expression*)var);
5263 util_htset(parser->htfields, var->name, var);
5265 for (i = 0; i < 3; ++i) {
5266 vec_push(parser->fields, (ast_expression*)me[i]);
5267 util_htset(parser->htfields, me[i]->name, me[i]);
5272 if (!(var->expression.flags & AST_FLAG_ALIAS)) {
5273 parser_addglobal(parser, var->name, (ast_expression*)var);
5275 for (i = 0; i < 3; ++i) {
5276 parser_addglobal(parser, me[i]->name, (ast_expression*)me[i]);
5280 void *entry = (void*)var->desc;
5281 ast_expression *find = parser_find_var(parser, var->desc);
5284 compile_error(parser_ctx(parser), "undeclared variable `%s` for alias `%s`", var->desc, var->name);
5288 if (var->expression.vtype != find->expression.vtype) {
5292 ast_type_to_string(find, ty1, sizeof(ty1));
5293 ast_type_to_string((ast_expression*)var, ty2, sizeof(ty2));
5295 compile_error(parser_ctx(parser), "incompatible types `%s` and `%s` for alias `%s`",
5302 * add alias to aliases table and to corrector
5303 * so corrections can apply for aliases as well.
5305 util_htset(parser->aliases, var->name, entry);
5308 * add to corrector so corrections can work
5309 * even for aliases too.
5312 vec_last(parser->correct_variables),
5313 &vec_last(parser->correct_variables_score),
5317 /* generate aliases for vector components */
5321 util_asprintf(&buffer[0], "%s_x", var->desc);
5322 util_asprintf(&buffer[1], "%s_y", var->desc);
5323 util_asprintf(&buffer[2], "%s_z", var->desc);
5325 util_htset(parser->aliases, me[0]->name, (void*)buffer[0]);
5326 util_htset(parser->aliases, me[1]->name, (void*)buffer[1]);
5327 util_htset(parser->aliases, me[2]->name, (void*)buffer[2]);
5330 * add to corrector so corrections can work
5331 * even for aliases too.
5334 vec_last(parser->correct_variables),
5335 &vec_last(parser->correct_variables_score),
5339 vec_last(parser->correct_variables),
5340 &vec_last(parser->correct_variables_score),
5344 vec_last(parser->correct_variables),
5345 &vec_last(parser->correct_variables_score),
5353 /* a static adds itself to be generated like any other global
5354 * but is added to the local namespace instead
5356 char *defname = NULL;
5357 size_t prefix_len, ln;
5359 ln = strlen(parser->function->name);
5360 vec_append(defname, ln, parser->function->name);
5362 vec_append(defname, 2, "::");
5363 /* remember the length up to here */
5364 prefix_len = vec_size(defname);
5366 /* Add it to the local scope */
5367 util_htset(vec_last(parser->variables), var->name, (void*)var);
5371 vec_last(parser->correct_variables),
5372 &vec_last(parser->correct_variables_score),
5376 /* now rename the global */
5377 ln = strlen(var->name);
5378 vec_append(defname, ln, var->name);
5379 ast_value_set_name(var, defname);
5381 /* push it to the to-be-generated globals */
5382 vec_push(parser->globals, (ast_expression*)var);
5384 /* same game for the vector members */
5386 for (i = 0; i < 3; ++i) {
5387 util_htset(vec_last(parser->variables), me[i]->name, (void*)(me[i]));
5391 vec_last(parser->correct_variables),
5392 &vec_last(parser->correct_variables_score),
5396 vec_shrinkto(defname, prefix_len);
5397 ln = strlen(me[i]->name);
5398 vec_append(defname, ln, me[i]->name);
5399 ast_member_set_name(me[i], defname);
5401 vec_push(parser->globals, (ast_expression*)me[i]);
5406 vec_push(localblock->locals, var);
5407 parser_addlocal(parser, var->name, (ast_expression*)var);
5409 for (i = 0; i < 3; ++i) {
5410 parser_addlocal(parser, me[i]->name, (ast_expression*)me[i]);
5411 ast_block_collect(localblock, (ast_expression*)me[i]);
5417 me[0] = me[1] = me[2] = NULL;
5422 if (var->expression.vtype == TYPE_ARRAY) {
5424 snprintf(name, sizeof(name), "%s##SET", var->name);
5425 if (!parser_create_array_setter(parser, var, name))
5427 snprintf(name, sizeof(name), "%s##GET", var->name);
5428 if (!parser_create_array_getter(parser, var, var->expression.next, name))
5431 else if (!localblock && !nofields &&
5432 var->expression.vtype == TYPE_FIELD &&
5433 var->expression.next->expression.vtype == TYPE_ARRAY)
5436 ast_expression *telem;
5438 ast_value *array = (ast_value*)var->expression.next;
5440 if (!ast_istype(var->expression.next, ast_value)) {
5441 parseerror(parser, "internal error: field element type must be an ast_value");
5445 snprintf(name, sizeof(name), "%s##SETF", var->name);
5446 if (!parser_create_array_field_setter(parser, array, name))
5449 telem = ast_type_copy(ast_ctx(var), array->expression.next);
5450 tfield = ast_value_new(ast_ctx(var), "<.type>", TYPE_FIELD);
5451 tfield->expression.next = telem;
5452 snprintf(name, sizeof(name), "%s##GETFP", var->name);
5453 if (!parser_create_array_getter(parser, array, (ast_expression*)tfield, name)) {
5461 if (parser->tok == ';') {
5462 ast_delete(basetype);
5463 if (!parser_next(parser)) {
5464 parseerror(parser, "error after variable declaration");
5470 if (parser->tok == ',')
5474 if (!var || (!localblock && !nofields && basetype->expression.vtype == TYPE_FIELD)) {
5477 parseerror(parser, "missing comma or semicolon while parsing variables");
5481 if (localblock && OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
5482 if (parsewarning(parser, WARN_LOCAL_CONSTANTS,
5483 "initializing expression turns variable `%s` into a constant in this standard",
5490 if (parser->tok != '{') {
5491 if (parser->tok != '=') {
5492 parseerror(parser, "missing semicolon or initializer, got: `%s`", parser_tokval(parser));
5496 if (!parser_next(parser)) {
5497 parseerror(parser, "error parsing initializer");
5501 else if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
5502 parseerror(parser, "expected '=' before function body in this standard");
5505 if (parser->tok == '#') {
5506 ast_function *func = NULL;
5509 parseerror(parser, "cannot declare builtins within functions");
5512 if (var->expression.vtype != TYPE_FUNCTION) {
5513 parseerror(parser, "unexpected builtin number, '%s' is not a function", var->name);
5516 if (!parser_next(parser)) {
5517 parseerror(parser, "expected builtin number");
5520 if (parser->tok != TOKEN_INTCONST) {
5521 parseerror(parser, "builtin number must be an integer constant");
5524 if (parser_token(parser)->constval.i < 0) {
5525 parseerror(parser, "builtin number must be an integer greater than zero");
5529 if (var->hasvalue) {
5530 (void)!parsewarning(parser, WARN_DOUBLE_DECLARATION,
5531 "builtin `%s` has already been defined\n"
5532 " -> previous declaration here: %s:%i",
5533 var->name, ast_ctx(var).file, (int)ast_ctx(var).line);
5537 func = ast_function_new(ast_ctx(var), var->name, var);
5539 parseerror(parser, "failed to allocate function for `%s`", var->name);
5542 vec_push(parser->functions, func);
5544 func->builtin = -parser_token(parser)->constval.i-1;
5547 if (!parser_next(parser)) {
5548 parseerror(parser, "expected comma or semicolon");
5550 ast_function_delete(func);
5551 var->constval.vfunc = NULL;
5555 else if (parser->tok == '{' || parser->tok == '[')
5558 parseerror(parser, "cannot declare functions within functions");
5563 ast_ctx(proto) = parser_ctx(parser);
5565 if (!parse_function_body(parser, var))
5567 ast_delete(basetype);
5568 for (i = 0; i < vec_size(parser->gotos); ++i)
5569 parseerror(parser, "undefined label: `%s`", parser->gotos[i]->name);
5570 vec_free(parser->gotos);
5571 vec_free(parser->labels);
5574 ast_expression *cexp;
5577 cexp = parse_expression_leave(parser, true, false, false);
5582 cval = (ast_value*)cexp;
5583 if (cval != parser->nil &&
5584 (!ast_istype(cval, ast_value) || ((!cval->hasvalue || cval->cvq != CV_CONST) && !cval->isfield))
5587 parseerror(parser, "cannot initialize a global constant variable with a non-constant expression");
5591 if (!OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
5592 qualifier != CV_VAR)
5594 var->cvq = CV_CONST;
5596 if (cval == parser->nil)
5597 var->expression.flags |= AST_FLAG_INITIALIZED;
5600 var->hasvalue = true;
5601 if (cval->expression.vtype == TYPE_STRING)
5602 var->constval.vstring = parser_strdup(cval->constval.vstring);
5603 else if (cval->expression.vtype == TYPE_FIELD)
5604 var->constval.vfield = cval;
5606 memcpy(&var->constval, &cval->constval, sizeof(var->constval));
5612 shunt sy = { NULL, NULL, NULL, NULL };
5615 vec_push(sy.out, syexp(ast_ctx(var), (ast_expression*)var));
5616 vec_push(sy.out, syexp(ast_ctx(cexp), (ast_expression*)cexp));
5617 vec_push(sy.ops, syop(ast_ctx(var), parser->assign_op));
5618 if (!parser_sy_apply_operator(parser, &sy))
5621 if (vec_size(sy.out) != 1 && vec_size(sy.ops) != 0)
5622 parseerror(parser, "internal error: leaked operands");
5623 if (!ast_block_add_expr(localblock, (ast_expression*)sy.out[0].out))
5633 if (parser->tok == ',') {
5634 if (!parser_next(parser)) {
5635 parseerror(parser, "expected another variable");
5639 if (parser->tok != TOKEN_IDENT) {
5640 parseerror(parser, "expected another variable");
5643 var = ast_value_copy(basetype);
5645 ast_value_set_name(var, parser_tokval(parser));
5646 if (!parser_next(parser)) {
5647 parseerror(parser, "error parsing variable declaration");
5653 if (parser->tok != ';') {
5654 parseerror(parser, "missing semicolon after variables");
5658 if (!parser_next(parser)) {
5659 parseerror(parser, "parse error after variable declaration");
5663 ast_delete(basetype);
5667 if (cleanvar && var)
5669 ast_delete(basetype);
5673 ast_delete(basetype);
5674 if (cleanvar && var)
5676 if (me[0]) ast_member_delete(me[0]);
5677 if (me[1]) ast_member_delete(me[1]);
5678 if (me[2]) ast_member_delete(me[2]);
5682 static bool parser_global_statement(parser_t *parser)
5686 bool is_static = false;
5687 uint32_t qflags = 0;
5688 ast_value *istype = NULL;
5689 char *vstring = NULL;
5691 if (parser->tok == TOKEN_IDENT)
5692 istype = parser_find_typedef(parser, parser_tokval(parser), 0);
5694 if (istype || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
5696 return parse_variable(parser, NULL, false, CV_NONE, istype, false, false, 0, NULL);
5698 else if (parse_qualifiers(parser, false, &cvq, &noref, &is_static, &qflags, &vstring))
5700 if (cvq == CV_WRONG)
5702 return parse_variable(parser, NULL, true, cvq, NULL, noref, is_static, qflags, vstring);
5704 else if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "enum"))
5706 return parse_enum(parser);
5708 else if (parser->tok == TOKEN_KEYWORD)
5710 if (!strcmp(parser_tokval(parser), "typedef")) {
5711 if (!parser_next(parser)) {
5712 parseerror(parser, "expected type definition after 'typedef'");
5715 return parse_typedef(parser);
5717 parseerror(parser, "unrecognized keyword `%s`", parser_tokval(parser));
5720 else if (parser->tok == '#')
5722 return parse_pragma(parser);
5724 else if (parser->tok == '$')
5726 if (!parser_next(parser)) {
5727 parseerror(parser, "parse error");
5733 parseerror(parser, "unexpected token: `%s`", parser->lex->tok.value);
5739 static uint16_t progdefs_crc_sum(uint16_t old, const char *str)
5741 return util_crc16(old, str, strlen(str));
5744 static void progdefs_crc_file(const char *str)
5746 /* write to progdefs.h here */
5750 static uint16_t progdefs_crc_both(uint16_t old, const char *str)
5752 old = progdefs_crc_sum(old, str);
5753 progdefs_crc_file(str);
5757 static void generate_checksum(parser_t *parser)
5759 uint16_t crc = 0xFFFF;
5763 crc = progdefs_crc_both(crc, "\n/* file generated by qcc, do not modify */\n\ntypedef struct\n{");
5764 crc = progdefs_crc_sum(crc, "\tint\tpad[28];\n");
5766 progdefs_crc_file("\tint\tpad;\n");
5767 progdefs_crc_file("\tint\tofs_return[3];\n");
5768 progdefs_crc_file("\tint\tofs_parm0[3];\n");
5769 progdefs_crc_file("\tint\tofs_parm1[3];\n");
5770 progdefs_crc_file("\tint\tofs_parm2[3];\n");
5771 progdefs_crc_file("\tint\tofs_parm3[3];\n");
5772 progdefs_crc_file("\tint\tofs_parm4[3];\n");
5773 progdefs_crc_file("\tint\tofs_parm5[3];\n");
5774 progdefs_crc_file("\tint\tofs_parm6[3];\n");
5775 progdefs_crc_file("\tint\tofs_parm7[3];\n");
5777 for (i = 0; i < parser->crc_globals; ++i) {
5778 if (!ast_istype(parser->globals[i], ast_value))
5780 value = (ast_value*)(parser->globals[i]);
5781 switch (value->expression.vtype) {
5782 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
5783 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
5784 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
5785 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
5787 crc = progdefs_crc_both(crc, "\tint\t");
5790 crc = progdefs_crc_both(crc, value->name);
5791 crc = progdefs_crc_both(crc, ";\n");
5793 crc = progdefs_crc_both(crc, "} globalvars_t;\n\ntypedef struct\n{\n");
5794 for (i = 0; i < parser->crc_fields; ++i) {
5795 if (!ast_istype(parser->fields[i], ast_value))
5797 value = (ast_value*)(parser->fields[i]);
5798 switch (value->expression.next->expression.vtype) {
5799 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
5800 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
5801 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
5802 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
5804 crc = progdefs_crc_both(crc, "\tint\t");
5807 crc = progdefs_crc_both(crc, value->name);
5808 crc = progdefs_crc_both(crc, ";\n");
5810 crc = progdefs_crc_both(crc, "} entvars_t;\n\n");
5815 static parser_t *parser;
5822 parser = (parser_t*)mem_a(sizeof(parser_t));
5826 memset(parser, 0, sizeof(*parser));
5828 for (i = 0; i < operator_count; ++i) {
5829 if (operators[i].id == opid1('=')) {
5830 parser->assign_op = operators+i;
5834 if (!parser->assign_op) {
5835 printf("internal error: initializing parser: failed to find assign operator\n");
5840 vec_push(parser->variables, parser->htfields = util_htnew(PARSER_HT_SIZE));
5841 vec_push(parser->variables, parser->htglobals = util_htnew(PARSER_HT_SIZE));
5842 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
5843 vec_push(parser->_blocktypedefs, 0);
5845 parser->aliases = util_htnew(PARSER_HT_SIZE);
5848 vec_push(parser->correct_variables, correct_trie_new());
5849 vec_push(parser->correct_variables_score, NULL);
5851 empty_ctx.file = "<internal>";
5853 parser->nil = ast_value_new(empty_ctx, "nil", TYPE_NIL);
5854 parser->nil->cvq = CV_CONST;
5855 if (OPTS_FLAG(UNTYPED_NIL))
5856 util_htset(parser->htglobals, "nil", (void*)parser->nil);
5858 parser->max_param_count = 1;
5860 parser->const_vec[0] = ast_value_new(empty_ctx, "<vector.x>", TYPE_NOEXPR);
5861 parser->const_vec[1] = ast_value_new(empty_ctx, "<vector.y>", TYPE_NOEXPR);
5862 parser->const_vec[2] = ast_value_new(empty_ctx, "<vector.z>", TYPE_NOEXPR);
5864 if (OPTS_OPTION_BOOL(OPTION_ADD_INFO)) {
5865 parser->reserved_version = ast_value_new(empty_ctx, "reserved:version", TYPE_STRING);
5866 parser->reserved_version->cvq = CV_CONST;
5867 parser->reserved_version->hasvalue = true;
5868 parser->reserved_version->expression.flags |= AST_FLAG_INCLUDE_DEF;
5869 parser->reserved_version->constval.vstring = util_strdup(GMQCC_FULL_VERSION_STRING);
5871 parser->reserved_version = NULL;
5876 bool parser_compile()
5878 /* initial lexer/parser state */
5879 parser->lex->flags.noops = true;
5881 if (parser_next(parser))
5883 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
5885 if (!parser_global_statement(parser)) {
5886 if (parser->tok == TOKEN_EOF)
5887 parseerror(parser, "unexpected eof");
5888 else if (compile_errors)
5889 parseerror(parser, "there have been errors, bailing out");
5890 lex_close(parser->lex);
5896 parseerror(parser, "parse error");
5897 lex_close(parser->lex);
5902 lex_close(parser->lex);
5905 return !compile_errors;
5908 bool parser_compile_file(const char *filename)
5910 parser->lex = lex_open(filename);
5912 con_err("failed to open file \"%s\"\n", filename);
5915 return parser_compile();
5918 bool parser_compile_string(const char *name, const char *str, size_t len)
5920 parser->lex = lex_open_string(str, len, name);
5922 con_err("failed to create lexer for string \"%s\"\n", name);
5925 return parser_compile();
5928 void parser_cleanup()
5931 for (i = 0; i < vec_size(parser->accessors); ++i) {
5932 ast_delete(parser->accessors[i]->constval.vfunc);
5933 parser->accessors[i]->constval.vfunc = NULL;
5934 ast_delete(parser->accessors[i]);
5936 for (i = 0; i < vec_size(parser->functions); ++i) {
5937 ast_delete(parser->functions[i]);
5939 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
5940 ast_delete(parser->imm_vector[i]);
5942 for (i = 0; i < vec_size(parser->imm_string); ++i) {
5943 ast_delete(parser->imm_string[i]);
5945 for (i = 0; i < vec_size(parser->imm_float); ++i) {
5946 ast_delete(parser->imm_float[i]);
5948 for (i = 0; i < vec_size(parser->fields); ++i) {
5949 ast_delete(parser->fields[i]);
5951 for (i = 0; i < vec_size(parser->globals); ++i) {
5952 ast_delete(parser->globals[i]);
5954 vec_free(parser->accessors);
5955 vec_free(parser->functions);
5956 vec_free(parser->imm_vector);
5957 vec_free(parser->imm_string);
5958 vec_free(parser->imm_float);
5959 vec_free(parser->globals);
5960 vec_free(parser->fields);
5962 for (i = 0; i < vec_size(parser->variables); ++i)
5963 util_htdel(parser->variables[i]);
5964 vec_free(parser->variables);
5965 vec_free(parser->_blocklocals);
5966 vec_free(parser->_locals);
5969 for (i = 0; i < vec_size(parser->correct_variables); ++i) {
5970 correct_del(parser->correct_variables[i], parser->correct_variables_score[i]);
5972 vec_free(parser->correct_variables);
5973 vec_free(parser->correct_variables_score);
5976 for (i = 0; i < vec_size(parser->_typedefs); ++i)
5977 ast_delete(parser->_typedefs[i]);
5978 vec_free(parser->_typedefs);
5979 for (i = 0; i < vec_size(parser->typedefs); ++i)
5980 util_htdel(parser->typedefs[i]);
5981 vec_free(parser->typedefs);
5982 vec_free(parser->_blocktypedefs);
5984 vec_free(parser->_block_ctx);
5986 vec_free(parser->labels);
5987 vec_free(parser->gotos);
5988 vec_free(parser->breaks);
5989 vec_free(parser->continues);
5991 ast_value_delete(parser->nil);
5993 ast_value_delete(parser->const_vec[0]);
5994 ast_value_delete(parser->const_vec[1]);
5995 ast_value_delete(parser->const_vec[2]);
5997 util_htdel(parser->aliases);
6002 bool parser_finish(const char *output)
6008 if (compile_errors) {
6009 con_out("*** there were compile errors\n");
6013 ir = ir_builder_new("gmqcc_out");
6015 con_out("failed to allocate builder\n");
6019 for (i = 0; i < vec_size(parser->fields); ++i) {
6022 if (!ast_istype(parser->fields[i], ast_value))
6024 field = (ast_value*)parser->fields[i];
6025 hasvalue = field->hasvalue;
6026 field->hasvalue = false;
6027 if (!ast_global_codegen((ast_value*)field, ir, true)) {
6028 con_out("failed to generate field %s\n", field->name);
6029 ir_builder_delete(ir);
6034 ast_expression *subtype;
6035 field->hasvalue = true;
6036 subtype = field->expression.next;
6037 ifld = ir_builder_create_field(ir, field->name, subtype->expression.vtype);
6038 if (subtype->expression.vtype == TYPE_FIELD)
6039 ifld->fieldtype = subtype->expression.next->expression.vtype;
6040 else if (subtype->expression.vtype == TYPE_FUNCTION)
6041 ifld->outtype = subtype->expression.next->expression.vtype;
6042 (void)!ir_value_set_field(field->ir_v, ifld);
6045 for (i = 0; i < vec_size(parser->globals); ++i) {
6047 if (!ast_istype(parser->globals[i], ast_value))
6049 asvalue = (ast_value*)(parser->globals[i]);
6050 if (!asvalue->uses && !asvalue->hasvalue && asvalue->expression.vtype != TYPE_FUNCTION) {
6051 retval = retval && !compile_warning(ast_ctx(asvalue), WARN_UNUSED_VARIABLE,
6052 "unused global: `%s`", asvalue->name);
6054 if (!ast_global_codegen(asvalue, ir, false)) {
6055 con_out("failed to generate global %s\n", asvalue->name);
6056 ir_builder_delete(ir);
6060 /* Build function vararg accessor ast tree now before generating
6061 * immediates, because the accessors may add new immediates
6063 for (i = 0; i < vec_size(parser->functions); ++i) {
6064 ast_function *f = parser->functions[i];
6066 if (parser->max_param_count > vec_size(f->vtype->expression.params)) {
6067 f->varargs->expression.count = parser->max_param_count - vec_size(f->vtype->expression.params);
6068 if (!parser_create_array_setter_impl(parser, f->varargs)) {
6069 con_out("failed to generate vararg setter for %s\n", f->name);
6070 ir_builder_delete(ir);
6073 if (!parser_create_array_getter_impl(parser, f->varargs)) {
6074 con_out("failed to generate vararg getter for %s\n", f->name);
6075 ir_builder_delete(ir);
6079 ast_delete(f->varargs);
6084 /* Now we can generate immediates */
6085 for (i = 0; i < vec_size(parser->imm_float); ++i) {
6086 if (!ast_global_codegen(parser->imm_float[i], ir, false)) {
6087 con_out("failed to generate global %s\n", parser->imm_float[i]->name);
6088 ir_builder_delete(ir);
6092 for (i = 0; i < vec_size(parser->imm_string); ++i) {
6093 if (!ast_global_codegen(parser->imm_string[i], ir, false)) {
6094 con_out("failed to generate global %s\n", parser->imm_string[i]->name);
6095 ir_builder_delete(ir);
6099 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
6100 if (!ast_global_codegen(parser->imm_vector[i], ir, false)) {
6101 con_out("failed to generate global %s\n", parser->imm_vector[i]->name);
6102 ir_builder_delete(ir);
6106 for (i = 0; i < vec_size(parser->globals); ++i) {
6108 if (!ast_istype(parser->globals[i], ast_value))
6110 asvalue = (ast_value*)(parser->globals[i]);
6111 if (!(asvalue->expression.flags & AST_FLAG_INITIALIZED))
6113 if (asvalue->cvq == CV_CONST && !asvalue->hasvalue)
6114 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_CONSTANT,
6115 "uninitialized constant: `%s`",
6117 else if ((asvalue->cvq == CV_NONE || asvalue->cvq == CV_CONST) && !asvalue->hasvalue)
6118 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_GLOBAL,
6119 "uninitialized global: `%s`",
6122 if (!ast_generate_accessors(asvalue, ir)) {
6123 ir_builder_delete(ir);
6127 for (i = 0; i < vec_size(parser->fields); ++i) {
6129 asvalue = (ast_value*)(parser->fields[i]->expression.next);
6131 if (!ast_istype((ast_expression*)asvalue, ast_value))
6133 if (asvalue->expression.vtype != TYPE_ARRAY)
6135 if (!ast_generate_accessors(asvalue, ir)) {
6136 ir_builder_delete(ir);
6140 if (parser->reserved_version &&
6141 !ast_global_codegen(parser->reserved_version, ir, false))
6143 con_out("failed to generate reserved::version");
6144 ir_builder_delete(ir);
6147 for (i = 0; i < vec_size(parser->functions); ++i) {
6148 ast_function *f = parser->functions[i];
6149 if (!ast_function_codegen(f, ir)) {
6150 con_out("failed to generate function %s\n", f->name);
6151 ir_builder_delete(ir);
6155 if (OPTS_OPTION_BOOL(OPTION_DUMP))
6156 ir_builder_dump(ir, con_out);
6157 for (i = 0; i < vec_size(parser->functions); ++i) {
6158 if (!ir_function_finalize(parser->functions[i]->ir_func)) {
6159 con_out("failed to finalize function %s\n", parser->functions[i]->name);
6160 ir_builder_delete(ir);
6165 if (compile_Werrors) {
6166 con_out("*** there were warnings treated as errors\n");
6167 compile_show_werrors();
6172 if (OPTS_OPTION_BOOL(OPTION_DUMPFIN))
6173 ir_builder_dump(ir, con_out);
6175 generate_checksum(parser);
6177 if (!ir_builder_generate(ir, output)) {
6178 con_out("*** failed to generate output file\n");
6179 ir_builder_delete(ir);
6184 ir_builder_delete(ir);