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
30 /* beginning of locals */
31 #define PARSER_HT_LOCALS 2
33 #define PARSER_HT_SIZE 1024
34 #define TYPEDEF_HT_SIZE 16
36 enum parser_pot { POT_PAREN, POT_TERNARY1, POT_TERNARY2 };
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_vector_zero;
60 ast_function *function;
62 /* All the labels the function defined...
63 * Should they be in ast_function instead?
68 const char **continues;
70 /* A list of hashtables for each scope */
76 /* not to be used directly, we use the hash table */
77 ast_expression **_locals;
79 ast_value **_typedefs;
80 size_t *_blocktypedefs;
83 /* we store the '=' operator info */
84 const oper_info *assign_op;
86 /* TYPE_FIELD -> parser_find_fields is used instead of find_var
87 * TODO: TYPE_VECTOR -> x, y and z are accepted in the gmqcc standard
88 * anything else: type error
92 /* Keep track of our ternary vs parenthesis nesting state.
93 * If we reach a 'comma' operator in a ternary without a paren,
94 * we shall trigger -Wternary-precedence.
102 static const ast_expression *intrinsic_debug_typestring = (ast_expression*)0x10;
104 static void parser_enterblock(parser_t *parser);
105 static bool parser_leaveblock(parser_t *parser);
106 static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e);
107 static bool parse_typedef(parser_t *parser);
108 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);
109 static ast_block* parse_block(parser_t *parser);
110 static bool parse_block_into(parser_t *parser, ast_block *block);
111 static bool parse_statement_or_block(parser_t *parser, ast_expression **out);
112 static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases);
113 static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma);
114 static ast_expression* parse_expression(parser_t *parser, bool stopatcomma);
116 static void parseerror(parser_t *parser, const char *fmt, ...)
120 vcompile_error(parser->lex->tok.ctx, fmt, ap);
124 /* returns true if it counts as an error */
125 static bool GMQCC_WARN parsewarning(parser_t *parser, int warntype, const char *fmt, ...)
130 r = vcompile_warning(parser->lex->tok.ctx, warntype, fmt, ap);
135 static bool GMQCC_WARN genwarning(lex_ctx ctx, int warntype, const char *fmt, ...)
140 r = vcompile_warning(ctx, warntype, fmt, ap);
145 /**********************************************************************
146 * some maths used for constant folding
149 vector vec3_add(vector a, vector b)
158 vector vec3_sub(vector a, vector b)
167 qcfloat vec3_mulvv(vector a, vector b)
169 return (a.x * b.x + a.y * b.y + a.z * b.z);
172 vector vec3_mulvf(vector a, float b)
181 /**********************************************************************
185 bool parser_next(parser_t *parser)
187 /* lex_do kills the previous token */
188 parser->tok = lex_do(parser->lex);
189 if (parser->tok == TOKEN_EOF)
191 if (parser->tok >= TOKEN_ERROR) {
192 parseerror(parser, "lex error");
198 #define parser_tokval(p) ((p)->lex->tok.value)
199 #define parser_token(p) (&((p)->lex->tok))
200 #define parser_ctx(p) ((p)->lex->tok.ctx)
202 static ast_value* parser_const_float(parser_t *parser, double d)
206 for (i = 0; i < vec_size(parser->imm_float); ++i) {
207 const double compare = parser->imm_float[i]->constval.vfloat;
208 if (memcmp((const void*)&compare, (const void *)&d, sizeof(double)) == 0)
209 return parser->imm_float[i];
211 out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_FLOAT);
213 out->hasvalue = true;
214 out->constval.vfloat = d;
215 vec_push(parser->imm_float, out);
219 static ast_value* parser_const_float_0(parser_t *parser)
221 if (!parser->imm_float_zero)
222 parser->imm_float_zero = parser_const_float(parser, 0);
223 return parser->imm_float_zero;
226 static ast_value* parser_const_float_1(parser_t *parser)
228 if (!parser->imm_float_one)
229 parser->imm_float_one = parser_const_float(parser, 1);
230 return parser->imm_float_one;
233 static char *parser_strdup(const char *str)
236 /* actually dup empty strings */
237 char *out = (char*)mem_a(1);
241 return util_strdup(str);
244 static ast_value* parser_const_string(parser_t *parser, const char *str, bool dotranslate)
248 for (i = 0; i < vec_size(parser->imm_string); ++i) {
249 if (!strcmp(parser->imm_string[i]->constval.vstring, str))
250 return parser->imm_string[i];
254 snprintf(name, sizeof(name), "dotranslate_%lu", (unsigned long)(parser->translated++));
255 out = ast_value_new(parser_ctx(parser), name, TYPE_STRING);
257 out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_STRING);
259 out->hasvalue = true;
260 out->constval.vstring = parser_strdup(str);
261 vec_push(parser->imm_string, out);
265 static ast_value* parser_const_vector(parser_t *parser, vector v)
269 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
270 if (!memcmp(&parser->imm_vector[i]->constval.vvec, &v, sizeof(v)))
271 return parser->imm_vector[i];
273 out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_VECTOR);
275 out->hasvalue = true;
276 out->constval.vvec = v;
277 vec_push(parser->imm_vector, out);
281 static ast_value* parser_const_vector_f(parser_t *parser, float x, float y, float z)
287 return parser_const_vector(parser, v);
290 static ast_value* parser_const_vector_0(parser_t *parser)
292 if (!parser->imm_vector_zero)
293 parser->imm_vector_zero = parser_const_vector_f(parser, 0, 0, 0);
294 return parser->imm_vector_zero;
297 static ast_expression* parser_find_field(parser_t *parser, const char *name)
299 return ( ast_expression*)util_htget(parser->htfields, name);
302 static ast_expression* parser_find_global(parser_t *parser, const char *name)
304 return (ast_expression*)util_htget(parser->htglobals, name);
307 static ast_expression* parser_find_param(parser_t *parser, const char *name)
311 if (!parser->function)
313 fun = parser->function->vtype;
314 for (i = 0; i < vec_size(fun->expression.params); ++i) {
315 if (!strcmp(fun->expression.params[i]->name, name))
316 return (ast_expression*)(fun->expression.params[i]);
321 static ast_expression* parser_find_local(parser_t *parser, const char *name, size_t upto, bool *isparam)
326 hash = util_hthash(parser->htglobals, name);
329 for (i = vec_size(parser->variables); i > upto;) {
331 if ( (e = (ast_expression*)util_htgeth(parser->variables[i], name, hash)) )
335 return parser_find_param(parser, name);
338 static ast_expression* parser_find_var(parser_t *parser, const char *name)
342 v = parser_find_local(parser, name, 0, &dummy);
343 if (!v) v = parser_find_global(parser, name);
347 static ast_value* parser_find_typedef(parser_t *parser, const char *name, size_t upto)
351 hash = util_hthash(parser->typedefs[0], name);
353 for (i = vec_size(parser->typedefs); i > upto;) {
355 if ( (e = (ast_value*)util_htgeth(parser->typedefs[i], name, hash)) )
363 size_t etype; /* 0 = expression, others are operators */
367 ast_block *block; /* for commas and function calls */
376 #define SY_PAREN_EXPR '('
377 #define SY_PAREN_FUNC 'f'
378 #define SY_PAREN_INDEX '['
379 #define SY_PAREN_TERNARY '?'
381 static sy_elem syexp(lex_ctx ctx, ast_expression *v) {
392 static sy_elem syblock(lex_ctx ctx, ast_block *v) {
396 e.out = (ast_expression*)v;
403 static sy_elem syop(lex_ctx ctx, const oper_info *op) {
405 e.etype = 1 + (op - operators);
414 static sy_elem syparen(lex_ctx ctx, int p, size_t off) {
426 # define DEBUGSHUNTDO(x) x
428 # define DEBUGSHUNTDO(x)
431 /* With regular precedence rules, ent.foo[n] is the same as (ent.foo)[n],
432 * so we need to rotate it to become ent.(foo[n]).
434 static bool rotate_entfield_array_index_nodes(ast_expression **out)
436 ast_array_index *index;
437 ast_entfield *entfield;
441 ast_expression *entity;
443 lex_ctx ctx = ast_ctx(*out);
445 if (!ast_istype(*out, ast_array_index))
447 index = (ast_array_index*)*out;
449 if (!ast_istype(index->array, ast_entfield))
451 entfield = (ast_entfield*)index->array;
453 if (!ast_istype(entfield->field, ast_value))
455 field = (ast_value*)entfield->field;
458 entity = entfield->entity;
462 index = ast_array_index_new(ctx, (ast_expression*)field, sub);
463 entfield = ast_entfield_new(ctx, entity, (ast_expression*)index);
464 *out = (ast_expression*)entfield;
469 static bool immediate_is_true(lex_ctx ctx, ast_value *v)
471 switch (v->expression.vtype) {
473 return !!v->constval.vfloat;
475 return !!v->constval.vint;
477 if (OPTS_FLAG(CORRECT_LOGIC))
478 return v->constval.vvec.x &&
479 v->constval.vvec.y &&
482 return !!(v->constval.vvec.x);
484 if (!v->constval.vstring)
486 if (v->constval.vstring && OPTS_FLAG(TRUE_EMPTY_STRINGS))
488 return !!v->constval.vstring[0];
490 compile_error(ctx, "internal error: immediate_is_true on invalid type");
491 return !!v->constval.vfunc;
495 static bool parser_sy_apply_operator(parser_t *parser, shunt *sy)
499 ast_expression *out = NULL;
500 ast_expression *exprs[3];
501 ast_block *blocks[3];
502 ast_value *asvalue[3];
503 ast_binstore *asbinstore;
504 size_t i, assignop, addop, subop;
505 qcint generated_op = 0;
510 if (!vec_size(sy->ops)) {
511 parseerror(parser, "internal error: missing operator");
515 if (vec_last(sy->ops).paren) {
516 parseerror(parser, "unmatched parenthesis");
520 op = &operators[vec_last(sy->ops).etype - 1];
521 ctx = vec_last(sy->ops).ctx;
523 DEBUGSHUNTDO(con_out("apply %s\n", op->op));
525 if (vec_size(sy->out) < op->operands) {
526 parseerror(parser, "internal error: not enough operands: %i (operator %s (%i))", vec_size(sy->out),
527 op->op, (int)op->id);
531 vec_shrinkby(sy->ops, 1);
533 /* op(:?) has no input and no output */
537 vec_shrinkby(sy->out, op->operands);
538 for (i = 0; i < op->operands; ++i) {
539 exprs[i] = sy->out[vec_size(sy->out)+i].out;
540 blocks[i] = sy->out[vec_size(sy->out)+i].block;
541 asvalue[i] = (ast_value*)exprs[i];
544 if (blocks[0] && !vec_size(blocks[0]->exprs) && op->id != opid1(',')) {
545 parseerror(parser, "internal error: operator cannot be applied on empty blocks");
549 #define NotSameType(T) \
550 (exprs[0]->expression.vtype != exprs[1]->expression.vtype || \
551 exprs[0]->expression.vtype != T)
552 #define CanConstFold1(A) \
553 (ast_istype((A), ast_value) && ((ast_value*)(A))->hasvalue && (((ast_value*)(A))->cvq == CV_CONST) &&\
554 (A)->expression.vtype != TYPE_FUNCTION)
555 #define CanConstFold(A, B) \
556 (CanConstFold1(A) && CanConstFold1(B))
557 #define ConstV(i) (asvalue[(i)]->constval.vvec)
558 #define ConstF(i) (asvalue[(i)]->constval.vfloat)
559 #define ConstS(i) (asvalue[(i)]->constval.vstring)
563 parseerror(parser, "internal error: unhandled operator: %s (%i)", op->op, (int)op->id);
567 if (exprs[0]->expression.vtype == TYPE_ENTITY) {
568 if (exprs[1]->expression.vtype != TYPE_FIELD) {
569 parseerror(parser, "type error: right hand of member-operand should be an entity-field");
572 out = (ast_expression*)ast_entfield_new(ctx, exprs[0], exprs[1]);
574 else if (exprs[0]->expression.vtype == TYPE_VECTOR) {
575 parseerror(parser, "internal error: vector access is not supposed to be handled at this point");
579 parseerror(parser, "type error: member-of operator on something that is not an entity or vector");
585 if (exprs[0]->expression.vtype != TYPE_ARRAY &&
586 !(exprs[0]->expression.vtype == TYPE_FIELD &&
587 exprs[0]->expression.next->expression.vtype == TYPE_ARRAY))
589 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
590 parseerror(parser, "cannot index value of type %s", ty1);
593 if (exprs[1]->expression.vtype != TYPE_FLOAT) {
594 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
595 parseerror(parser, "index must be of type float, not %s", ty1);
598 out = (ast_expression*)ast_array_index_new(ctx, exprs[0], exprs[1]);
599 if (rotate_entfield_array_index_nodes(&out))
602 /* This is not broken in fteqcc anymore */
603 if (opts.standard != COMPILER_GMQCC) {
604 /* this error doesn't need to make us bail out */
605 (void)!parsewarning(parser, WARN_EXTENSIONS,
606 "accessing array-field members of an entity without parenthesis\n"
607 " -> this is an extension from -std=gmqcc");
615 if (!ast_block_add_expr(blocks[0], exprs[1]))
618 blocks[0] = ast_block_new(ctx);
619 if (!ast_block_add_expr(blocks[0], exprs[0]) ||
620 !ast_block_add_expr(blocks[0], exprs[1]))
625 if (!ast_block_set_type(blocks[0], exprs[1]))
628 vec_push(sy->out, syblock(ctx, blocks[0]));
635 switch (exprs[0]->expression.vtype) {
637 if (CanConstFold1(exprs[0]))
638 out = (ast_expression*)parser_const_float(parser, -ConstF(0));
640 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F,
641 (ast_expression*)parser_const_float_0(parser),
645 if (CanConstFold1(exprs[0]))
646 out = (ast_expression*)parser_const_vector_f(parser,
647 -ConstV(0).x, -ConstV(0).y, -ConstV(0).z);
649 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V,
650 (ast_expression*)parser_const_vector_0(parser),
654 parseerror(parser, "invalid types used in expression: cannot negate type %s",
655 type_name[exprs[0]->expression.vtype]);
661 switch (exprs[0]->expression.vtype) {
663 if (CanConstFold1(exprs[0]))
664 out = (ast_expression*)parser_const_float(parser, !ConstF(0));
666 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
669 if (CanConstFold1(exprs[0]))
670 out = (ast_expression*)parser_const_float(parser,
671 (!ConstV(0).x && !ConstV(0).y && !ConstV(0).z));
673 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[0]);
676 if (CanConstFold1(exprs[0])) {
677 if (OPTS_FLAG(TRUE_EMPTY_STRINGS))
678 out = (ast_expression*)parser_const_float(parser, !ConstS(0));
680 out = (ast_expression*)parser_const_float(parser, !ConstS(0) || !*ConstS(0));
682 if (OPTS_FLAG(TRUE_EMPTY_STRINGS))
683 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
685 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[0]);
688 /* we don't constant-fold NOT for these types */
690 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_ENT, exprs[0]);
693 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_FNC, exprs[0]);
696 parseerror(parser, "invalid types used in expression: cannot logically negate type %s",
697 type_name[exprs[0]->expression.vtype]);
703 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
704 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
706 parseerror(parser, "invalid types used in expression: cannot add type %s and %s",
707 type_name[exprs[0]->expression.vtype],
708 type_name[exprs[1]->expression.vtype]);
711 switch (exprs[0]->expression.vtype) {
713 if (CanConstFold(exprs[0], exprs[1]))
715 out = (ast_expression*)parser_const_float(parser, ConstF(0) + ConstF(1));
718 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F, exprs[0], exprs[1]);
721 if (CanConstFold(exprs[0], exprs[1]))
722 out = (ast_expression*)parser_const_vector(parser, vec3_add(ConstV(0), ConstV(1)));
724 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_V, exprs[0], exprs[1]);
727 parseerror(parser, "invalid types used in expression: cannot add type %s and %s",
728 type_name[exprs[0]->expression.vtype],
729 type_name[exprs[1]->expression.vtype]);
734 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
735 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
737 parseerror(parser, "invalid types used in expression: cannot subtract type %s from %s",
738 type_name[exprs[1]->expression.vtype],
739 type_name[exprs[0]->expression.vtype]);
742 switch (exprs[0]->expression.vtype) {
744 if (CanConstFold(exprs[0], exprs[1]))
745 out = (ast_expression*)parser_const_float(parser, ConstF(0) - ConstF(1));
747 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F, exprs[0], exprs[1]);
750 if (CanConstFold(exprs[0], exprs[1]))
751 out = (ast_expression*)parser_const_vector(parser, vec3_sub(ConstV(0), ConstV(1)));
753 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V, exprs[0], exprs[1]);
756 parseerror(parser, "invalid types used in expression: cannot subtract type %s from %s",
757 type_name[exprs[1]->expression.vtype],
758 type_name[exprs[0]->expression.vtype]);
763 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype &&
764 !(exprs[0]->expression.vtype == TYPE_VECTOR &&
765 exprs[1]->expression.vtype == TYPE_FLOAT) &&
766 !(exprs[1]->expression.vtype == TYPE_VECTOR &&
767 exprs[0]->expression.vtype == TYPE_FLOAT)
770 parseerror(parser, "invalid types used in expression: cannot multiply types %s and %s",
771 type_name[exprs[1]->expression.vtype],
772 type_name[exprs[0]->expression.vtype]);
775 switch (exprs[0]->expression.vtype) {
777 if (exprs[1]->expression.vtype == TYPE_VECTOR)
779 if (CanConstFold(exprs[0], exprs[1]))
780 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(1), ConstF(0)));
782 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_FV, exprs[0], exprs[1]);
786 if (CanConstFold(exprs[0], exprs[1]))
787 out = (ast_expression*)parser_const_float(parser, ConstF(0) * ConstF(1));
789 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, exprs[0], exprs[1]);
793 if (exprs[1]->expression.vtype == TYPE_FLOAT)
795 if (CanConstFold(exprs[0], exprs[1]))
796 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(0), ConstF(1)));
798 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_VF, exprs[0], exprs[1]);
802 if (CanConstFold(exprs[0], exprs[1]))
803 out = (ast_expression*)parser_const_float(parser, vec3_mulvv(ConstV(0), ConstV(1)));
804 else if (OPTS_OPTIMIZATION(OPTIM_VECTOR_COMPONENTS) && CanConstFold1(exprs[0])) {
805 vector vec = ConstV(0);
806 if (!vec.y && !vec.z) { /* 'n 0 0' * v */
807 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
808 out = (ast_expression*)ast_member_new(ctx, exprs[1], 0, NULL);
809 out->expression.node.keep = false;
810 ((ast_member*)out)->rvalue = true;
812 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.x), out);
814 else if (!vec.x && !vec.z) { /* '0 n 0' * v */
815 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
816 out = (ast_expression*)ast_member_new(ctx, exprs[1], 1, NULL);
817 out->expression.node.keep = false;
818 ((ast_member*)out)->rvalue = true;
820 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.y), out);
822 else if (!vec.x && !vec.y) { /* '0 n 0' * v */
823 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
824 out = (ast_expression*)ast_member_new(ctx, exprs[1], 2, NULL);
825 out->expression.node.keep = false;
826 ((ast_member*)out)->rvalue = true;
828 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.z), out);
831 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
833 else if (OPTS_OPTIMIZATION(OPTIM_VECTOR_COMPONENTS) && CanConstFold1(exprs[1])) {
834 vector vec = ConstV(1);
835 if (!vec.y && !vec.z) { /* v * 'n 0 0' */
836 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
837 out = (ast_expression*)ast_member_new(ctx, exprs[0], 0, NULL);
838 out->expression.node.keep = false;
839 ((ast_member*)out)->rvalue = true;
841 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.x));
843 else if (!vec.x && !vec.z) { /* v * '0 n 0' */
844 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
845 out = (ast_expression*)ast_member_new(ctx, exprs[0], 1, NULL);
846 out->expression.node.keep = false;
847 ((ast_member*)out)->rvalue = true;
849 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.y));
851 else if (!vec.x && !vec.y) { /* v * '0 n 0' */
852 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
853 out = (ast_expression*)ast_member_new(ctx, exprs[0], 2, NULL);
854 out->expression.node.keep = false;
855 ((ast_member*)out)->rvalue = true;
857 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.z));
860 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
863 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
867 parseerror(parser, "invalid types used in expression: cannot multiply types %s and %s",
868 type_name[exprs[1]->expression.vtype],
869 type_name[exprs[0]->expression.vtype]);
874 if (NotSameType(TYPE_FLOAT)) {
875 parseerror(parser, "invalid types used in expression: cannot divide types %s and %s",
876 type_name[exprs[0]->expression.vtype],
877 type_name[exprs[1]->expression.vtype]);
880 if (CanConstFold(exprs[0], exprs[1]))
881 out = (ast_expression*)parser_const_float(parser, ConstF(0) / ConstF(1));
883 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F, exprs[0], exprs[1]);
887 parseerror(parser, "qc does not have a modulo operator");
891 if (NotSameType(TYPE_FLOAT)) {
892 parseerror(parser, "invalid types used in expression: cannot perform bit operations between types %s and %s",
893 type_name[exprs[0]->expression.vtype],
894 type_name[exprs[1]->expression.vtype]);
897 if (CanConstFold(exprs[0], exprs[1]))
898 out = (ast_expression*)parser_const_float(parser,
899 (op->id == opid1('|') ? (float)( ((qcint)ConstF(0)) | ((qcint)ConstF(1)) ) :
900 (float)( ((qcint)ConstF(0)) & ((qcint)ConstF(1)) ) ));
902 out = (ast_expression*)ast_binary_new(ctx,
903 (op->id == opid1('|') ? INSTR_BITOR : INSTR_BITAND),
907 parseerror(parser, "TODO: bitxor");
912 case opid3('<','<','='):
913 case opid3('>','>','='):
914 parseerror(parser, "TODO: shifts");
918 generated_op += 1; /* INSTR_OR */
920 generated_op += INSTR_AND;
922 if (NotSameType(TYPE_FLOAT)) {
923 parseerror(parser, "invalid types used in expression: cannot perform logical operations between types %s and %s",
924 type_name[exprs[0]->expression.vtype],
925 type_name[exprs[1]->expression.vtype]);
926 parseerror(parser, "TODO: logical ops for arbitrary types using INSTR_NOT");
927 parseerror(parser, "TODO: optional early out");
931 if (CanConstFold(exprs[0], exprs[1]))
933 if (OPTS_FLAG(PERL_LOGIC)) {
934 if (immediate_is_true(ctx, asvalue[0]))
938 out = (ast_expression*)parser_const_float(parser,
939 ( (generated_op == INSTR_OR)
940 ? (immediate_is_true(ctx, asvalue[0]) || immediate_is_true(ctx, asvalue[1]))
941 : (immediate_is_true(ctx, asvalue[0]) && immediate_is_true(ctx, asvalue[1])) )
946 if (OPTS_FLAG(PERL_LOGIC) && !ast_compare_type(exprs[0], exprs[1])) {
947 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
948 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
949 parseerror(parser, "invalid types for logical operation with -fperl-logic: %s and %s", ty1, ty2);
952 for (i = 0; i < 2; ++i) {
953 if (OPTS_FLAG(CORRECT_LOGIC) && exprs[i]->expression.vtype == TYPE_VECTOR) {
954 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[i]);
956 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
958 exprs[i] = out; out = NULL;
959 if (OPTS_FLAG(PERL_LOGIC)) {
960 /* here we want to keep the right expressions' type */
964 else if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && exprs[i]->expression.vtype == TYPE_STRING) {
965 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[i]);
967 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
969 exprs[i] = out; out = NULL;
970 if (OPTS_FLAG(PERL_LOGIC)) {
971 /* here we want to keep the right expressions' type */
976 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
981 if (vec_last(parser->pot) != POT_TERNARY2) {
982 parseerror(parser, "mismatched parenthesis/ternary");
985 vec_pop(parser->pot);
986 if (exprs[1]->expression.vtype != exprs[2]->expression.vtype) {
987 ast_type_to_string(exprs[1], ty1, sizeof(ty1));
988 ast_type_to_string(exprs[2], ty2, sizeof(ty2));
989 parseerror(parser, "operands of ternary expression must have the same type, got %s and %s", ty1, ty2);
992 if (CanConstFold1(exprs[0]))
993 out = (ConstF(0) ? exprs[1] : exprs[2]);
995 out = (ast_expression*)ast_ternary_new(ctx, exprs[0], exprs[1], exprs[2]);
999 generated_op += 1; /* INSTR_GT */
1001 generated_op += 1; /* INSTR_LT */
1002 case opid2('>', '='):
1003 generated_op += 1; /* INSTR_GE */
1004 case opid2('<', '='):
1005 generated_op += INSTR_LE;
1006 if (NotSameType(TYPE_FLOAT)) {
1007 parseerror(parser, "invalid types used in expression: cannot perform comparison between types %s and %s",
1008 type_name[exprs[0]->expression.vtype],
1009 type_name[exprs[1]->expression.vtype]);
1012 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
1014 case opid2('!', '='):
1015 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) {
1016 parseerror(parser, "invalid types used in expression: cannot perform comparison between types %s and %s",
1017 type_name[exprs[0]->expression.vtype],
1018 type_name[exprs[1]->expression.vtype]);
1021 out = (ast_expression*)ast_binary_new(ctx, type_ne_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]);
1023 case opid2('=', '='):
1024 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) {
1025 parseerror(parser, "invalid types used in expression: cannot perform comparison between types %s and %s",
1026 type_name[exprs[0]->expression.vtype],
1027 type_name[exprs[1]->expression.vtype]);
1030 out = (ast_expression*)ast_binary_new(ctx, type_eq_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]);
1034 if (ast_istype(exprs[0], ast_entfield)) {
1035 ast_expression *field = ((ast_entfield*)exprs[0])->field;
1036 if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) &&
1037 exprs[0]->expression.vtype == TYPE_FIELD &&
1038 exprs[0]->expression.next->expression.vtype == TYPE_VECTOR)
1040 assignop = type_storep_instr[TYPE_VECTOR];
1043 assignop = type_storep_instr[exprs[0]->expression.vtype];
1044 if (assignop == AINSTR_END ||
1045 !ast_compare_type(field->expression.next, exprs[1]))
1047 ast_type_to_string(field->expression.next, ty1, sizeof(ty1));
1048 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1049 if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
1050 field->expression.next->expression.vtype == TYPE_FUNCTION &&
1051 exprs[1]->expression.vtype == TYPE_FUNCTION)
1053 (void)!parsewarning(parser, WARN_ASSIGN_FUNCTION_TYPES,
1054 "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1057 parseerror(parser, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1062 if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) &&
1063 exprs[0]->expression.vtype == TYPE_FIELD &&
1064 exprs[0]->expression.next->expression.vtype == TYPE_VECTOR)
1066 assignop = type_store_instr[TYPE_VECTOR];
1069 assignop = type_store_instr[exprs[0]->expression.vtype];
1072 if (assignop == AINSTR_END) {
1073 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1074 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1075 parseerror(parser, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1077 else if (exprs[1]->expression.vtype != TYPE_NIL &&
1078 !ast_compare_type(exprs[0], exprs[1]))
1080 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1081 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1082 if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
1083 exprs[0]->expression.vtype == TYPE_FUNCTION &&
1084 exprs[1]->expression.vtype == TYPE_FUNCTION)
1086 (void)!parsewarning(parser, WARN_ASSIGN_FUNCTION_TYPES,
1087 "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1090 parseerror(parser, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1093 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1094 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1096 out = (ast_expression*)ast_store_new(ctx, assignop, exprs[0], exprs[1]);
1098 case opid3('+','+','P'):
1099 case opid3('-','-','P'):
1101 if (exprs[0]->expression.vtype != TYPE_FLOAT) {
1102 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1103 parseerror(parser, "invalid type for prefix increment: %s", ty1);
1106 if (op->id == opid3('+','+','P'))
1107 addop = INSTR_ADD_F;
1109 addop = INSTR_SUB_F;
1110 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1111 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1113 if (ast_istype(exprs[0], ast_entfield)) {
1114 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
1116 (ast_expression*)parser_const_float_1(parser));
1118 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
1120 (ast_expression*)parser_const_float_1(parser));
1123 case opid3('S','+','+'):
1124 case opid3('S','-','-'):
1126 if (exprs[0]->expression.vtype != TYPE_FLOAT) {
1127 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1128 parseerror(parser, "invalid type for suffix increment: %s", ty1);
1131 if (op->id == opid3('S','+','+')) {
1132 addop = INSTR_ADD_F;
1133 subop = INSTR_SUB_F;
1135 addop = INSTR_SUB_F;
1136 subop = INSTR_ADD_F;
1138 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1139 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1141 if (ast_istype(exprs[0], ast_entfield)) {
1142 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
1144 (ast_expression*)parser_const_float_1(parser));
1146 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
1148 (ast_expression*)parser_const_float_1(parser));
1152 out = (ast_expression*)ast_binary_new(ctx, subop,
1154 (ast_expression*)parser_const_float_1(parser));
1156 case opid2('+','='):
1157 case opid2('-','='):
1158 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
1159 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
1161 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1162 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1163 parseerror(parser, "invalid types used in expression: cannot add or subtract type %s and %s",
1167 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1168 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1170 if (ast_istype(exprs[0], ast_entfield))
1171 assignop = type_storep_instr[exprs[0]->expression.vtype];
1173 assignop = type_store_instr[exprs[0]->expression.vtype];
1174 switch (exprs[0]->expression.vtype) {
1176 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1177 (op->id == opid2('+','=') ? INSTR_ADD_F : INSTR_SUB_F),
1178 exprs[0], exprs[1]);
1181 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1182 (op->id == opid2('+','=') ? INSTR_ADD_V : INSTR_SUB_V),
1183 exprs[0], exprs[1]);
1186 parseerror(parser, "invalid types used in expression: cannot add or subtract type %s and %s",
1187 type_name[exprs[0]->expression.vtype],
1188 type_name[exprs[1]->expression.vtype]);
1192 case opid2('*','='):
1193 case opid2('/','='):
1194 if (exprs[1]->expression.vtype != TYPE_FLOAT ||
1195 !(exprs[0]->expression.vtype == TYPE_FLOAT ||
1196 exprs[0]->expression.vtype == TYPE_VECTOR))
1198 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1199 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1200 parseerror(parser, "invalid types used in expression: %s and %s",
1204 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1205 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1207 if (ast_istype(exprs[0], ast_entfield))
1208 assignop = type_storep_instr[exprs[0]->expression.vtype];
1210 assignop = type_store_instr[exprs[0]->expression.vtype];
1211 switch (exprs[0]->expression.vtype) {
1213 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1214 (op->id == opid2('*','=') ? INSTR_MUL_F : INSTR_DIV_F),
1215 exprs[0], exprs[1]);
1218 if (op->id == opid2('*','=')) {
1219 out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
1220 exprs[0], exprs[1]);
1222 /* there's no DIV_VF */
1223 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F,
1224 (ast_expression*)parser_const_float_1(parser),
1228 out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
1233 parseerror(parser, "invalid types used in expression: cannot add or subtract type %s and %s",
1234 type_name[exprs[0]->expression.vtype],
1235 type_name[exprs[1]->expression.vtype]);
1239 case opid2('&','='):
1240 case opid2('|','='):
1241 if (NotSameType(TYPE_FLOAT)) {
1242 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1243 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1244 parseerror(parser, "invalid types used in expression: %s and %s",
1248 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1249 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1251 if (ast_istype(exprs[0], ast_entfield))
1252 assignop = type_storep_instr[exprs[0]->expression.vtype];
1254 assignop = type_store_instr[exprs[0]->expression.vtype];
1255 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1256 (op->id == opid2('&','=') ? INSTR_BITAND : INSTR_BITOR),
1257 exprs[0], exprs[1]);
1259 case opid3('&','~','='):
1260 /* This is like: a &= ~(b);
1261 * But QC has no bitwise-not, so we implement it as
1264 if (NotSameType(TYPE_FLOAT)) {
1265 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1266 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1267 parseerror(parser, "invalid types used in expression: %s and %s",
1271 if (ast_istype(exprs[0], ast_entfield))
1272 assignop = type_storep_instr[exprs[0]->expression.vtype];
1274 assignop = type_store_instr[exprs[0]->expression.vtype];
1275 out = (ast_expression*)ast_binary_new(ctx, INSTR_BITAND, exprs[0], exprs[1]);
1278 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1279 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1281 asbinstore = ast_binstore_new(ctx, assignop, INSTR_SUB_F, exprs[0], out);
1282 asbinstore->keep_dest = true;
1283 out = (ast_expression*)asbinstore;
1289 parseerror(parser, "failed to apply operand %s", op->op);
1293 DEBUGSHUNTDO(con_out("applied %s\n", op->op));
1294 vec_push(sy->out, syexp(ctx, out));
1298 static bool parser_close_call(parser_t *parser, shunt *sy)
1300 /* was a function call */
1301 ast_expression *fun;
1307 vec_shrinkby(sy->ops, 1);
1308 fid = sy->ops[vec_size(sy->ops)].off;
1310 /* out[fid] is the function
1311 * everything above is parameters...
1312 * 0 params = nothing
1313 * 1 params = ast_expression
1317 if (vec_size(sy->out) < 1 || vec_size(sy->out) <= fid) {
1318 parseerror(parser, "internal error: function call needs function and parameter list...");
1322 fun = sy->out[fid].out;
1324 if (fun == intrinsic_debug_typestring) {
1326 if (fid+2 != vec_size(sy->out) ||
1327 vec_last(sy->out).block)
1329 parseerror(parser, "intrinsic __builtin_debug_typestring requires exactly 1 parameter");
1332 ast_type_to_string(vec_last(sy->out).out, ty, sizeof(ty));
1333 ast_unref(vec_last(sy->out).out);
1334 sy->out[fid] = syexp(ast_ctx(vec_last(sy->out).out),
1335 (ast_expression*)parser_const_string(parser, ty, false));
1336 vec_shrinkby(sy->out, 1);
1340 call = ast_call_new(sy->ops[vec_size(sy->ops)].ctx, fun);
1342 parseerror(parser, "internal error: failed to create ast_call node");
1346 if (fid+1 == vec_size(sy->out)) {
1349 } else if (fid+2 == vec_size(sy->out)) {
1351 vec_shrinkby(sy->out, 1);
1352 params = sy->out[vec_size(sy->out)].block;
1356 vec_push(call->params, sy->out[vec_size(sy->out)].out);
1358 paramcount = vec_size(params->exprs);
1359 call->params = params->exprs;
1360 params->exprs = NULL;
1363 (void)!ast_call_check_types(call);
1365 parseerror(parser, "invalid function call");
1369 /* overwrite fid, the function, with a call */
1370 sy->out[fid] = syexp(call->expression.node.context, (ast_expression*)call);
1372 if (fun->expression.vtype != TYPE_FUNCTION) {
1373 parseerror(parser, "not a function (%s)", type_name[fun->expression.vtype]);
1378 if (!fun->expression.next) {
1379 parseerror(parser, "could not determine function return type");
1382 ast_value *fval = (ast_istype(fun, ast_value) ? ((ast_value*)fun) : NULL);
1384 if (fun->expression.flags & AST_FLAG_DEPRECATED) {
1386 return !parsewarning(parser, WARN_DEPRECATED,
1387 "call to function (which is marked deprecated)\n",
1388 "-> it has been declared here: %s:%i",
1389 ast_ctx(fun).file, ast_ctx(fun).line);
1392 return !parsewarning(parser, WARN_DEPRECATED,
1393 "call to `%s` (which is marked deprecated)\n"
1394 "-> `%s` declared here: %s:%i",
1395 fval->name, fval->name, ast_ctx(fun).file, ast_ctx(fun).line);
1397 return !parsewarning(parser, WARN_DEPRECATED,
1398 "call to `%s` (deprecated: %s)\n"
1399 "-> `%s` declared here: %s:%i",
1400 fval->name, fval->desc, fval->name, ast_ctx(fun).file,
1404 if (vec_size(fun->expression.params) != paramcount &&
1405 !((fun->expression.flags & AST_FLAG_VARIADIC) &&
1406 vec_size(fun->expression.params) < paramcount))
1408 const char *fewmany = (vec_size(fun->expression.params) > paramcount) ? "few" : "many";
1409 if (opts.standard == COMPILER_GMQCC)
1412 parseerror(parser, "too %s parameters for call to %s: expected %i, got %i\n"
1413 " -> `%s` has been declared here: %s:%i",
1414 fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount,
1415 fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
1417 parseerror(parser, "too %s parameters for function call: expected %i, got %i\n"
1418 " -> it has been declared here: %s:%i",
1419 fewmany, (int)vec_size(fun->expression.params), (int)paramcount,
1420 ast_ctx(fun).file, (int)ast_ctx(fun).line);
1426 return !parsewarning(parser, WARN_TOO_FEW_PARAMETERS,
1427 "too %s parameters for call to %s: expected %i, got %i\n"
1428 " -> `%s` has been declared here: %s:%i",
1429 fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount,
1430 fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
1432 return !parsewarning(parser, WARN_TOO_FEW_PARAMETERS,
1433 "too %s parameters for function call: expected %i, got %i\n"
1434 " -> it has been declared here: %s:%i",
1435 fewmany, (int)vec_size(fun->expression.params), (int)paramcount,
1436 ast_ctx(fun).file, (int)ast_ctx(fun).line);
1444 static bool parser_close_paren(parser_t *parser, shunt *sy, bool functions_only)
1446 if (!vec_size(sy->ops)) {
1447 parseerror(parser, "unmatched closing paren");
1450 /* this would for bit a + (x) because there are no operators inside (x)
1451 if (sy->ops[vec_size(sy->ops)-1].paren == 1) {
1452 parseerror(parser, "empty parenthesis expression");
1456 while (vec_size(sy->ops)) {
1457 if (sy->ops[vec_size(sy->ops)-1].paren == SY_PAREN_FUNC) {
1458 if (!parser_close_call(parser, sy))
1462 if (sy->ops[vec_size(sy->ops)-1].paren == SY_PAREN_EXPR) {
1463 vec_shrinkby(sy->ops, 1);
1464 return !functions_only;
1466 if (sy->ops[vec_size(sy->ops)-1].paren == SY_PAREN_INDEX) {
1469 /* pop off the parenthesis */
1470 vec_shrinkby(sy->ops, 1);
1471 /* then apply the index operator */
1472 if (!parser_sy_apply_operator(parser, sy))
1476 if (sy->ops[vec_size(sy->ops)-1].paren == SY_PAREN_TERNARY) {
1479 if (vec_last(parser->pot) != POT_TERNARY1) {
1480 parseerror(parser, "mismatched colon in ternary expression (missing closing paren?)");
1483 vec_last(parser->pot) = POT_TERNARY2;
1484 /* pop off the parenthesis */
1485 vec_shrinkby(sy->ops, 1);
1488 if (!parser_sy_apply_operator(parser, sy))
1494 static void parser_reclassify_token(parser_t *parser)
1497 for (i = 0; i < operator_count; ++i) {
1498 if (!strcmp(parser_tokval(parser), operators[i].op)) {
1499 parser->tok = TOKEN_OPERATOR;
1505 static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma)
1507 ast_expression *expr = NULL;
1509 bool wantop = false;
1510 bool gotmemberof = false;
1512 /* count the parens because an if starts with one, so the
1513 * end of a condition is an unmatched closing paren
1521 parser->lex->flags.noops = false;
1523 parser_reclassify_token(parser);
1528 gotmemberof = false;
1530 parser->memberof = 0;
1532 if (OPTS_FLAG(TRANSLATABLE_STRINGS) &&
1533 parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "_"))
1535 /* a translatable string */
1539 parseerror(parser, "expected operator or end of statement, got constant");
1543 parser->lex->flags.noops = true;
1544 if (!parser_next(parser) || parser->tok != '(') {
1545 parseerror(parser, "use _(\"string\") to create a translatable string constant");
1548 parser->lex->flags.noops = false;
1549 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
1550 parseerror(parser, "expected a constant string in translatable-string extension");
1553 val = parser_const_string(parser, parser_tokval(parser), true);
1557 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1558 DEBUGSHUNTDO(con_out("push string\n"));
1560 if (!parser_next(parser) || parser->tok != ')') {
1561 parseerror(parser, "expected closing paren after translatable string");
1565 else if (parser->tok == TOKEN_IDENT)
1567 ast_expression *var;
1569 parseerror(parser, "expected operator or end of statement");
1574 if (opts.standard == COMPILER_GMQCC)
1576 if (parser->memberof == TYPE_ENTITY) {
1577 /* still get vars first since there could be a fieldpointer */
1578 var = parser_find_var(parser, parser_tokval(parser));
1580 var = parser_find_field(parser, parser_tokval(parser));
1582 else if (parser->memberof == TYPE_VECTOR)
1584 parseerror(parser, "TODO: implement effective vector member access");
1587 else if (parser->memberof) {
1588 parseerror(parser, "namespace for member not found");
1592 var = parser_find_var(parser, parser_tokval(parser));
1594 var = parser_find_var(parser, parser_tokval(parser));
1596 var = parser_find_field(parser, parser_tokval(parser));
1600 if (!strcmp(parser_tokval(parser), "__builtin_debug_typestring")) {
1601 var = (ast_expression*)intrinsic_debug_typestring;
1606 parseerror(parser, "unexpected ident: %s", parser_tokval(parser));
1612 if (ast_istype(var, ast_value)) {
1613 ((ast_value*)var)->uses++;
1615 else if (ast_istype(var, ast_member)) {
1616 ast_member *mem = (ast_member*)var;
1617 if (ast_istype(mem->owner, ast_value))
1618 ((ast_value*)(mem->owner))->uses++;
1621 vec_push(sy.out, syexp(parser_ctx(parser), var));
1622 DEBUGSHUNTDO(con_out("push %s\n", parser_tokval(parser)));
1624 else if (parser->tok == TOKEN_FLOATCONST) {
1627 parseerror(parser, "expected operator or end of statement, got constant");
1631 val = parser_const_float(parser, (parser_token(parser)->constval.f));
1634 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1635 DEBUGSHUNTDO(con_out("push %g\n", parser_token(parser)->constval.f));
1637 else if (parser->tok == TOKEN_INTCONST || parser->tok == TOKEN_CHARCONST) {
1640 parseerror(parser, "expected operator or end of statement, got constant");
1644 val = parser_const_float(parser, (double)(parser_token(parser)->constval.i));
1647 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1648 DEBUGSHUNTDO(con_out("push %i\n", parser_token(parser)->constval.i));
1650 else if (parser->tok == TOKEN_STRINGCONST) {
1653 parseerror(parser, "expected operator or end of statement, got constant");
1657 val = parser_const_string(parser, parser_tokval(parser), false);
1660 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1661 DEBUGSHUNTDO(con_out("push string\n"));
1663 else if (parser->tok == TOKEN_VECTORCONST) {
1666 parseerror(parser, "expected operator or end of statement, got constant");
1670 val = parser_const_vector(parser, parser_token(parser)->constval.v);
1673 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1674 DEBUGSHUNTDO(con_out("push '%g %g %g'\n",
1675 parser_token(parser)->constval.v.x,
1676 parser_token(parser)->constval.v.y,
1677 parser_token(parser)->constval.v.z));
1679 else if (parser->tok == '(') {
1680 parseerror(parser, "internal error: '(' should be classified as operator");
1683 else if (parser->tok == '[') {
1684 parseerror(parser, "internal error: '[' should be classified as operator");
1687 else if (parser->tok == ')') {
1689 DEBUGSHUNTDO(con_out("do[op] )\n"));
1693 /* we do expect an operator next */
1694 /* closing an opening paren */
1695 if (!parser_close_paren(parser, &sy, false))
1697 if (vec_last(parser->pot) != POT_PAREN) {
1698 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1701 vec_pop(parser->pot);
1703 DEBUGSHUNTDO(con_out("do[nop] )\n"));
1707 /* allowed for function calls */
1708 if (!parser_close_paren(parser, &sy, true))
1710 if (vec_last(parser->pot) != POT_PAREN) {
1711 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1714 vec_pop(parser->pot);
1718 else if (parser->tok == ']') {
1720 parseerror(parser, "operand expected");
1724 if (!parser_close_paren(parser, &sy, false))
1726 if (vec_last(parser->pot) != POT_PAREN) {
1727 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1730 vec_pop(parser->pot);
1733 else if (parser->tok == TOKEN_TYPENAME) {
1734 parseerror(parser, "unexpected typename");
1737 else if (parser->tok != TOKEN_OPERATOR) {
1739 parseerror(parser, "expected operator or end of statement");
1746 /* classify the operator */
1747 const oper_info *op;
1748 const oper_info *olast = NULL;
1750 for (o = 0; o < operator_count; ++o) {
1751 if (((!(operators[o].flags & OP_PREFIX) == !!wantop)) &&
1752 /* !(operators[o].flags & OP_SUFFIX) && / * remove this */
1753 !strcmp(parser_tokval(parser), operators[o].op))
1758 if (o == operator_count) {
1759 /* no operator found... must be the end of the statement */
1762 /* found an operator */
1765 /* when declaring variables, a comma starts a new variable */
1766 if (op->id == opid1(',') && !parens && stopatcomma) {
1767 /* fixup the token */
1772 /* a colon without a pervious question mark cannot be a ternary */
1773 if (!ternaries && op->id == opid2(':','?')) {
1778 if (op->id == opid1(',')) {
1779 if (vec_size(parser->pot) && vec_last(parser->pot) == POT_TERNARY2) {
1780 (void)!parsewarning(parser, WARN_TERNARY_PRECEDENCE, "suggesting parenthesis around ternary expression");
1784 if (vec_size(sy.ops) && !vec_last(sy.ops).paren)
1785 olast = &operators[vec_last(sy.ops).etype-1];
1788 (op->prec < olast->prec) ||
1789 (op->assoc == ASSOC_LEFT && op->prec <= olast->prec) ) )
1791 if (!parser_sy_apply_operator(parser, &sy))
1793 if (vec_size(sy.ops) && !vec_last(sy.ops).paren)
1794 olast = &operators[vec_last(sy.ops).etype-1];
1799 if (op->id == opid1('.') && opts.standard == COMPILER_GMQCC) {
1800 /* for gmqcc standard: open up the namespace of the previous type */
1801 ast_expression *prevex = vec_last(sy.out).out;
1803 parseerror(parser, "unexpected member operator");
1806 if (prevex->expression.vtype == TYPE_ENTITY)
1807 parser->memberof = TYPE_ENTITY;
1808 else if (prevex->expression.vtype == TYPE_VECTOR)
1809 parser->memberof = TYPE_VECTOR;
1811 parseerror(parser, "type error: type has no members");
1817 if (op->id == opid1('(')) {
1819 size_t sycount = vec_size(sy.out);
1820 DEBUGSHUNTDO(con_out("push [op] (\n"));
1821 ++parens; vec_push(parser->pot, POT_PAREN);
1822 /* we expected an operator, this is the function-call operator */
1823 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_FUNC, sycount-1));
1825 ++parens; vec_push(parser->pot, POT_PAREN);
1826 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_EXPR, 0));
1827 DEBUGSHUNTDO(con_out("push [nop] (\n"));
1830 } else if (op->id == opid1('[')) {
1832 parseerror(parser, "unexpected array subscript");
1835 ++parens; vec_push(parser->pot, POT_PAREN);
1836 /* push both the operator and the paren, this makes life easier */
1837 vec_push(sy.ops, syop(parser_ctx(parser), op));
1838 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_INDEX, 0));
1840 } else if (op->id == opid2('?',':')) {
1841 vec_push(sy.ops, syop(parser_ctx(parser), op));
1842 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_TERNARY, 0));
1845 vec_push(parser->pot, POT_TERNARY1);
1846 } else if (op->id == opid2(':','?')) {
1847 if (!vec_size(parser->pot)) {
1848 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
1851 if (vec_last(parser->pot) != POT_TERNARY1) {
1852 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
1855 if (!parser_close_paren(parser, &sy, false))
1857 vec_push(sy.ops, syop(parser_ctx(parser), op));
1861 DEBUGSHUNTDO(con_out("push operator %s\n", op->op));
1862 vec_push(sy.ops, syop(parser_ctx(parser), op));
1863 wantop = !!(op->flags & OP_SUFFIX);
1866 if (!parser_next(parser)) {
1869 if (parser->tok == ';' ||
1870 (!parens && parser->tok == ']'))
1876 while (vec_size(sy.ops)) {
1877 if (!parser_sy_apply_operator(parser, &sy))
1881 parser->lex->flags.noops = true;
1882 if (!vec_size(sy.out)) {
1883 parseerror(parser, "empty expression");
1886 expr = sy.out[0].out;
1889 DEBUGSHUNTDO(con_out("shunt done\n"));
1890 if (vec_size(parser->pot)) {
1891 parseerror(parser, "internal error: vec_size(parser->pot) = %lu", (unsigned long)vec_size(parser->pot));
1894 vec_free(parser->pot);
1898 parser->lex->flags.noops = true;
1904 static ast_expression* parse_expression(parser_t *parser, bool stopatcomma)
1906 ast_expression *e = parse_expression_leave(parser, stopatcomma);
1909 if (!parser_next(parser)) {
1916 static void parser_enterblock(parser_t *parser)
1918 vec_push(parser->variables, util_htnew(PARSER_HT_SIZE));
1919 vec_push(parser->_blocklocals, vec_size(parser->_locals));
1920 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
1921 vec_push(parser->_blocktypedefs, vec_size(parser->_typedefs));
1922 vec_push(parser->_block_ctx, parser_ctx(parser));
1925 static bool parser_leaveblock(parser_t *parser)
1928 size_t locals, typedefs;
1930 if (vec_size(parser->variables) <= PARSER_HT_LOCALS) {
1931 parseerror(parser, "internal error: parser_leaveblock with no block");
1935 util_htdel(vec_last(parser->variables));
1936 vec_pop(parser->variables);
1937 if (!vec_size(parser->_blocklocals)) {
1938 parseerror(parser, "internal error: parser_leaveblock with no block (2)");
1942 locals = vec_last(parser->_blocklocals);
1943 vec_pop(parser->_blocklocals);
1944 while (vec_size(parser->_locals) != locals) {
1945 ast_expression *e = vec_last(parser->_locals);
1946 ast_value *v = (ast_value*)e;
1947 vec_pop(parser->_locals);
1948 if (ast_istype(e, ast_value) && !v->uses) {
1949 if (compile_warning(ast_ctx(v), WARN_UNUSED_VARIABLE, "unused variable: `%s`", v->name))
1954 typedefs = vec_last(parser->_blocktypedefs);
1955 while (vec_size(parser->_typedefs) != typedefs) {
1956 ast_delete(vec_last(parser->_typedefs));
1957 vec_pop(parser->_typedefs);
1959 util_htdel(vec_last(parser->typedefs));
1960 vec_pop(parser->typedefs);
1962 vec_pop(parser->_block_ctx);
1966 static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e)
1968 vec_push(parser->_locals, e);
1969 util_htset(vec_last(parser->variables), name, (void*)e);
1972 static ast_expression* process_condition(parser_t *parser, ast_expression *cond, bool *_ifnot)
1976 ast_expression *prev;
1978 if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && cond->expression.vtype == TYPE_STRING)
1981 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_S, cond);
1984 parseerror(parser, "internal error: failed to process condition");
1989 else if (OPTS_FLAG(CORRECT_LOGIC) && cond->expression.vtype == TYPE_VECTOR)
1991 /* vector types need to be cast to true booleans */
1992 ast_binary *bin = (ast_binary*)cond;
1993 if (!OPTS_FLAG(PERL_LOGIC) || !ast_istype(cond, ast_binary) || !(bin->op == INSTR_AND || bin->op == INSTR_OR))
1995 /* in perl-logic, AND and OR take care of the -fcorrect-logic */
1997 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_V, cond);
2000 parseerror(parser, "internal error: failed to process condition");
2007 unary = (ast_unary*)cond;
2008 while (ast_istype(cond, ast_unary) && unary->op == INSTR_NOT_F)
2010 cond = unary->operand;
2011 unary->operand = NULL;
2014 unary = (ast_unary*)cond;
2018 parseerror(parser, "internal error: failed to process condition");
2020 if (ifnot) *_ifnot = !*_ifnot;
2024 static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out)
2027 ast_expression *cond, *ontrue = NULL, *onfalse = NULL;
2030 lex_ctx ctx = parser_ctx(parser);
2032 (void)block; /* not touching */
2034 /* skip the 'if', parse an optional 'not' and check for an opening paren */
2035 if (!parser_next(parser)) {
2036 parseerror(parser, "expected condition or 'not'");
2039 if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "not")) {
2041 if (!parser_next(parser)) {
2042 parseerror(parser, "expected condition in parenthesis");
2046 if (parser->tok != '(') {
2047 parseerror(parser, "expected 'if' condition in parenthesis");
2050 /* parse into the expression */
2051 if (!parser_next(parser)) {
2052 parseerror(parser, "expected 'if' condition after opening paren");
2055 /* parse the condition */
2056 cond = parse_expression_leave(parser, false);
2060 if (parser->tok != ')') {
2061 parseerror(parser, "expected closing paren after 'if' condition");
2065 /* parse into the 'then' branch */
2066 if (!parser_next(parser)) {
2067 parseerror(parser, "expected statement for on-true branch of 'if'");
2071 if (!parse_statement_or_block(parser, &ontrue)) {
2075 /* check for an else */
2076 if (!strcmp(parser_tokval(parser), "else")) {
2077 /* parse into the 'else' branch */
2078 if (!parser_next(parser)) {
2079 parseerror(parser, "expected on-false branch after 'else'");
2084 if (!parse_statement_or_block(parser, &onfalse)) {
2091 cond = process_condition(parser, cond, &ifnot);
2093 if (ontrue) ast_delete(ontrue);
2094 if (onfalse) ast_delete(onfalse);
2099 ifthen = ast_ifthen_new(ctx, cond, onfalse, ontrue);
2101 ifthen = ast_ifthen_new(ctx, cond, ontrue, onfalse);
2102 *out = (ast_expression*)ifthen;
2106 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out);
2107 static bool parse_while(parser_t *parser, ast_block *block, ast_expression **out)
2112 /* skip the 'while' and get the body */
2113 if (!parser_next(parser)) {
2114 if (OPTS_FLAG(LOOP_LABELS))
2115 parseerror(parser, "expected loop label or 'while' condition in parenthesis");
2117 parseerror(parser, "expected 'while' condition in parenthesis");
2121 if (parser->tok == ':') {
2122 if (!OPTS_FLAG(LOOP_LABELS))
2123 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2124 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2125 parseerror(parser, "expected loop label");
2128 label = util_strdup(parser_tokval(parser));
2129 if (!parser_next(parser)) {
2131 parseerror(parser, "expected 'while' condition in parenthesis");
2136 if (parser->tok != '(') {
2137 parseerror(parser, "expected 'while' condition in parenthesis");
2141 vec_push(parser->breaks, label);
2142 vec_push(parser->continues, label);
2144 rv = parse_while_go(parser, block, out);
2147 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2148 parseerror(parser, "internal error: label stack corrupted");
2154 vec_pop(parser->breaks);
2155 vec_pop(parser->continues);
2160 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out)
2163 ast_expression *cond, *ontrue;
2167 lex_ctx ctx = parser_ctx(parser);
2169 (void)block; /* not touching */
2171 /* parse into the expression */
2172 if (!parser_next(parser)) {
2173 parseerror(parser, "expected 'while' condition after opening paren");
2176 /* parse the condition */
2177 cond = parse_expression_leave(parser, false);
2181 if (parser->tok != ')') {
2182 parseerror(parser, "expected closing paren after 'while' condition");
2186 /* parse into the 'then' branch */
2187 if (!parser_next(parser)) {
2188 parseerror(parser, "expected while-loop body");
2192 if (!parse_statement_or_block(parser, &ontrue)) {
2197 cond = process_condition(parser, cond, &ifnot);
2202 aloop = ast_loop_new(ctx, NULL, cond, ifnot, NULL, false, NULL, ontrue);
2203 *out = (ast_expression*)aloop;
2207 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out);
2208 static bool parse_dowhile(parser_t *parser, ast_block *block, ast_expression **out)
2213 /* skip the 'do' and get the body */
2214 if (!parser_next(parser)) {
2215 if (OPTS_FLAG(LOOP_LABELS))
2216 parseerror(parser, "expected loop label or body");
2218 parseerror(parser, "expected loop body");
2222 if (parser->tok == ':') {
2223 if (!OPTS_FLAG(LOOP_LABELS))
2224 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2225 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2226 parseerror(parser, "expected loop label");
2229 label = util_strdup(parser_tokval(parser));
2230 if (!parser_next(parser)) {
2232 parseerror(parser, "expected loop body");
2237 vec_push(parser->breaks, label);
2238 vec_push(parser->continues, label);
2240 rv = parse_dowhile_go(parser, block, out);
2243 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2244 parseerror(parser, "internal error: label stack corrupted");
2250 vec_pop(parser->breaks);
2251 vec_pop(parser->continues);
2256 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out)
2259 ast_expression *cond, *ontrue;
2263 lex_ctx ctx = parser_ctx(parser);
2265 (void)block; /* not touching */
2267 if (!parse_statement_or_block(parser, &ontrue))
2270 /* expect the "while" */
2271 if (parser->tok != TOKEN_KEYWORD ||
2272 strcmp(parser_tokval(parser), "while"))
2274 parseerror(parser, "expected 'while' and condition");
2279 /* skip the 'while' and check for opening paren */
2280 if (!parser_next(parser) || parser->tok != '(') {
2281 parseerror(parser, "expected 'while' condition in parenthesis");
2285 /* parse into the expression */
2286 if (!parser_next(parser)) {
2287 parseerror(parser, "expected 'while' condition after opening paren");
2291 /* parse the condition */
2292 cond = parse_expression_leave(parser, false);
2296 if (parser->tok != ')') {
2297 parseerror(parser, "expected closing paren after 'while' condition");
2303 if (!parser_next(parser) || parser->tok != ';') {
2304 parseerror(parser, "expected semicolon after condition");
2310 if (!parser_next(parser)) {
2311 parseerror(parser, "parse error");
2317 cond = process_condition(parser, cond, &ifnot);
2322 aloop = ast_loop_new(ctx, NULL, NULL, false, cond, ifnot, NULL, ontrue);
2323 *out = (ast_expression*)aloop;
2327 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out);
2328 static bool parse_for(parser_t *parser, ast_block *block, ast_expression **out)
2333 /* skip the 'for' and check for opening paren */
2334 if (!parser_next(parser)) {
2335 if (OPTS_FLAG(LOOP_LABELS))
2336 parseerror(parser, "expected loop label or 'for' expressions in parenthesis");
2338 parseerror(parser, "expected 'for' expressions in parenthesis");
2342 if (parser->tok == ':') {
2343 if (!OPTS_FLAG(LOOP_LABELS))
2344 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2345 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2346 parseerror(parser, "expected loop label");
2349 label = util_strdup(parser_tokval(parser));
2350 if (!parser_next(parser)) {
2352 parseerror(parser, "expected 'for' expressions in parenthesis");
2357 if (parser->tok != '(') {
2358 parseerror(parser, "expected 'for' expressions in parenthesis");
2362 vec_push(parser->breaks, label);
2363 vec_push(parser->continues, label);
2365 rv = parse_for_go(parser, block, out);
2368 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2369 parseerror(parser, "internal error: label stack corrupted");
2375 vec_pop(parser->breaks);
2376 vec_pop(parser->continues);
2380 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out)
2383 ast_expression *initexpr, *cond, *increment, *ontrue;
2389 lex_ctx ctx = parser_ctx(parser);
2391 parser_enterblock(parser);
2398 /* parse into the expression */
2399 if (!parser_next(parser)) {
2400 parseerror(parser, "expected 'for' initializer after opening paren");
2405 if (parser->tok == TOKEN_IDENT)
2406 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
2408 if (typevar || parser->tok == TOKEN_TYPENAME) {
2409 if (opts.standard != COMPILER_GMQCC) {
2410 if (parsewarning(parser, WARN_EXTENSIONS,
2411 "current standard does not allow variable declarations in for-loop initializers"))
2414 if (!parse_variable(parser, block, true, CV_VAR, typevar, false, false, 0, NULL))
2417 else if (parser->tok != ';')
2419 initexpr = parse_expression_leave(parser, false);
2424 /* move on to condition */
2425 if (parser->tok != ';') {
2426 parseerror(parser, "expected semicolon after for-loop initializer");
2429 if (!parser_next(parser)) {
2430 parseerror(parser, "expected for-loop condition");
2434 /* parse the condition */
2435 if (parser->tok != ';') {
2436 cond = parse_expression_leave(parser, false);
2441 /* move on to incrementor */
2442 if (parser->tok != ';') {
2443 parseerror(parser, "expected semicolon after for-loop initializer");
2446 if (!parser_next(parser)) {
2447 parseerror(parser, "expected for-loop condition");
2451 /* parse the incrementor */
2452 if (parser->tok != ')') {
2453 increment = parse_expression_leave(parser, false);
2456 if (!ast_side_effects(increment)) {
2457 if (genwarning(ast_ctx(increment), WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
2463 if (parser->tok != ')') {
2464 parseerror(parser, "expected closing paren after 'for-loop' incrementor");
2467 /* parse into the 'then' branch */
2468 if (!parser_next(parser)) {
2469 parseerror(parser, "expected for-loop body");
2472 if (!parse_statement_or_block(parser, &ontrue))
2476 cond = process_condition(parser, cond, &ifnot);
2480 aloop = ast_loop_new(ctx, initexpr, cond, ifnot, NULL, false, increment, ontrue);
2481 *out = (ast_expression*)aloop;
2483 if (!parser_leaveblock(parser))
2487 if (initexpr) ast_delete(initexpr);
2488 if (cond) ast_delete(cond);
2489 if (increment) ast_delete(increment);
2490 (void)!parser_leaveblock(parser);
2494 static bool parse_return(parser_t *parser, ast_block *block, ast_expression **out)
2496 ast_expression *exp = NULL;
2497 ast_return *ret = NULL;
2498 ast_value *expected = parser->function->vtype;
2500 lex_ctx ctx = parser_ctx(parser);
2502 (void)block; /* not touching */
2504 if (!parser_next(parser)) {
2505 parseerror(parser, "expected return expression");
2509 if (parser->tok != ';') {
2510 exp = parse_expression(parser, false);
2514 if (exp->expression.vtype != expected->expression.next->expression.vtype) {
2515 parseerror(parser, "return with invalid expression");
2518 ret = ast_return_new(ctx, exp);
2524 if (!parser_next(parser))
2525 parseerror(parser, "parse error");
2526 if (expected->expression.next->expression.vtype != TYPE_VOID) {
2527 if (opts.standard != COMPILER_GMQCC)
2528 (void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value");
2530 parseerror(parser, "return without value");
2532 ret = ast_return_new(ctx, NULL);
2534 *out = (ast_expression*)ret;
2538 static bool parse_break_continue(parser_t *parser, ast_block *block, ast_expression **out, bool is_continue)
2541 unsigned int levels = 0;
2542 lex_ctx ctx = parser_ctx(parser);
2543 const char **loops = (is_continue ? parser->continues : parser->breaks);
2545 (void)block; /* not touching */
2546 if (!parser_next(parser)) {
2547 parseerror(parser, "expected semicolon or loop label");
2551 if (parser->tok == TOKEN_IDENT) {
2552 if (!OPTS_FLAG(LOOP_LABELS))
2553 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2554 i = vec_size(loops);
2556 if (loops[i] && !strcmp(loops[i], parser_tokval(parser)))
2559 parseerror(parser, "no such loop to %s: `%s`",
2560 (is_continue ? "continue" : "break out of"),
2561 parser_tokval(parser));
2566 if (!parser_next(parser)) {
2567 parseerror(parser, "expected semicolon");
2572 if (parser->tok != ';') {
2573 parseerror(parser, "expected semicolon");
2577 if (!parser_next(parser))
2578 parseerror(parser, "parse error");
2580 *out = (ast_expression*)ast_breakcont_new(ctx, is_continue, levels);
2584 /* returns true when it was a variable qualifier, false otherwise!
2585 * on error, cvq is set to CV_WRONG
2587 static bool parse_qualifiers(parser_t *parser, bool with_local, int *cvq, bool *noref, bool *is_static, uint32_t *_flags, char **message)
2589 bool had_const = false;
2590 bool had_var = false;
2591 bool had_noref = false;
2592 bool had_attrib = false;
2593 bool had_static = false;
2598 if (parser->tok == TOKEN_ATTRIBUTE_OPEN) {
2600 /* parse an attribute */
2601 if (!parser_next(parser)) {
2602 parseerror(parser, "expected attribute after `[[`");
2606 if (!strcmp(parser_tokval(parser), "noreturn")) {
2607 flags |= AST_FLAG_NORETURN;
2608 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2609 parseerror(parser, "`noreturn` attribute has no parameters, expected `]]`");
2614 else if (!strcmp(parser_tokval(parser), "noref")) {
2616 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2617 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2622 else if (!strcmp(parser_tokval(parser), "inline")) {
2623 flags |= AST_FLAG_INLINE;
2624 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2625 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2632 else if (!strcmp(parser_tokval(parser), "deprecated") && !(flags & AST_FLAG_DEPRECATED)) {
2633 flags |= AST_FLAG_DEPRECATED;
2636 if (!parser_next(parser)) {
2637 parseerror(parser, "parse error in attribute");
2641 if (parser->tok == '(') {
2642 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
2643 parseerror(parser, "`deprecated` attribute missing parameter");
2647 *message = util_strdup(parser_tokval(parser));
2649 if (!parser_next(parser)) {
2650 parseerror(parser, "parse error in attribute");
2654 if(parser->tok != ')') {
2655 parseerror(parser, "`deprecated` attribute expected `)` after parameter");
2659 if (!parser_next(parser)) {
2660 parseerror(parser, "parse error in attribute");
2665 if (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2666 parseerror(parser, "`deprecated` attribute expected `]]`");
2669 if (*message) mem_d(*message);
2677 /* Skip tokens until we hit a ]] */
2678 (void)!parsewarning(parser, WARN_UNKNOWN_ATTRIBUTE, "unknown attribute starting with `%s`", parser_tokval(parser));
2679 while (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2680 if (!parser_next(parser)) {
2681 parseerror(parser, "error inside attribute");
2688 else if (!strcmp(parser_tokval(parser), "static"))
2690 else if (!strcmp(parser_tokval(parser), "const"))
2692 else if (!strcmp(parser_tokval(parser), "var"))
2694 else if (with_local && !strcmp(parser_tokval(parser), "local"))
2696 else if (!strcmp(parser_tokval(parser), "noref"))
2698 else if (!had_const && !had_var && !had_noref && !had_attrib && !had_static && !flags) {
2703 if (!parser_next(parser))
2713 *is_static = had_static;
2717 parseerror(parser, "parse error after variable qualifier");
2722 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out);
2723 static bool parse_switch(parser_t *parser, ast_block *block, ast_expression **out)
2728 /* skip the 'while' and get the body */
2729 if (!parser_next(parser)) {
2730 if (OPTS_FLAG(LOOP_LABELS))
2731 parseerror(parser, "expected loop label or 'switch' operand in parenthesis");
2733 parseerror(parser, "expected 'switch' operand in parenthesis");
2737 if (parser->tok == ':') {
2738 if (!OPTS_FLAG(LOOP_LABELS))
2739 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2740 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2741 parseerror(parser, "expected loop label");
2744 label = util_strdup(parser_tokval(parser));
2745 if (!parser_next(parser)) {
2747 parseerror(parser, "expected 'switch' operand in parenthesis");
2752 if (parser->tok != '(') {
2753 parseerror(parser, "expected 'switch' operand in parenthesis");
2757 vec_push(parser->breaks, label);
2759 rv = parse_switch_go(parser, block, out);
2762 if (vec_last(parser->breaks) != label) {
2763 parseerror(parser, "internal error: label stack corrupted");
2769 vec_pop(parser->breaks);
2774 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out)
2776 ast_expression *operand;
2779 ast_switch *switchnode;
2780 ast_switch_case swcase;
2783 bool noref, is_static;
2784 uint32_t qflags = 0;
2786 lex_ctx ctx = parser_ctx(parser);
2788 (void)block; /* not touching */
2791 /* parse into the expression */
2792 if (!parser_next(parser)) {
2793 parseerror(parser, "expected switch operand");
2796 /* parse the operand */
2797 operand = parse_expression_leave(parser, false);
2801 switchnode = ast_switch_new(ctx, operand);
2804 if (parser->tok != ')') {
2805 ast_delete(switchnode);
2806 parseerror(parser, "expected closing paren after 'switch' operand");
2810 /* parse over the opening paren */
2811 if (!parser_next(parser) || parser->tok != '{') {
2812 ast_delete(switchnode);
2813 parseerror(parser, "expected list of cases");
2817 if (!parser_next(parser)) {
2818 ast_delete(switchnode);
2819 parseerror(parser, "expected 'case' or 'default'");
2823 /* new block; allow some variables to be declared here */
2824 parser_enterblock(parser);
2827 if (parser->tok == TOKEN_IDENT)
2828 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
2829 if (typevar || parser->tok == TOKEN_TYPENAME) {
2830 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL)) {
2831 ast_delete(switchnode);
2836 if (parse_qualifiers(parser, true, &cvq, &noref, &is_static, &qflags, NULL))
2838 if (cvq == CV_WRONG) {
2839 ast_delete(switchnode);
2842 if (!parse_variable(parser, block, false, cvq, NULL, noref, is_static, qflags, NULL)) {
2843 ast_delete(switchnode);
2852 while (parser->tok != '}') {
2853 ast_block *caseblock;
2855 if (!strcmp(parser_tokval(parser), "case")) {
2856 if (!parser_next(parser)) {
2857 ast_delete(switchnode);
2858 parseerror(parser, "expected expression for case");
2861 swcase.value = parse_expression_leave(parser, false);
2862 if (!swcase.value) {
2863 ast_delete(switchnode);
2864 parseerror(parser, "expected expression for case");
2867 if (!OPTS_FLAG(RELAXED_SWITCH)) {
2868 if (!ast_istype(swcase.value, ast_value)) { /* || ((ast_value*)swcase.value)->cvq != CV_CONST) { */
2869 parseerror(parser, "case on non-constant values need to be explicitly enabled via -frelaxed-switch");
2875 else if (!strcmp(parser_tokval(parser), "default")) {
2876 swcase.value = NULL;
2877 if (!parser_next(parser)) {
2878 ast_delete(switchnode);
2879 parseerror(parser, "expected colon");
2884 ast_delete(switchnode);
2885 parseerror(parser, "expected 'case' or 'default'");
2889 /* Now the colon and body */
2890 if (parser->tok != ':') {
2891 if (swcase.value) ast_unref(swcase.value);
2892 ast_delete(switchnode);
2893 parseerror(parser, "expected colon");
2897 if (!parser_next(parser)) {
2898 if (swcase.value) ast_unref(swcase.value);
2899 ast_delete(switchnode);
2900 parseerror(parser, "expected statements or case");
2903 caseblock = ast_block_new(parser_ctx(parser));
2905 if (swcase.value) ast_unref(swcase.value);
2906 ast_delete(switchnode);
2909 swcase.code = (ast_expression*)caseblock;
2910 vec_push(switchnode->cases, swcase);
2912 ast_expression *expr;
2913 if (parser->tok == '}')
2915 if (parser->tok == TOKEN_KEYWORD) {
2916 if (!strcmp(parser_tokval(parser), "case") ||
2917 !strcmp(parser_tokval(parser), "default"))
2922 if (!parse_statement(parser, caseblock, &expr, true)) {
2923 ast_delete(switchnode);
2928 if (!ast_block_add_expr(caseblock, expr)) {
2929 ast_delete(switchnode);
2935 parser_leaveblock(parser);
2938 if (parser->tok != '}') {
2939 ast_delete(switchnode);
2940 parseerror(parser, "expected closing paren of case list");
2943 if (!parser_next(parser)) {
2944 ast_delete(switchnode);
2945 parseerror(parser, "parse error after switch");
2948 *out = (ast_expression*)switchnode;
2952 static bool parse_goto(parser_t *parser, ast_expression **out)
2957 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2958 parseerror(parser, "expected label name after `goto`");
2962 gt = ast_goto_new(parser_ctx(parser), parser_tokval(parser));
2964 for (i = 0; i < vec_size(parser->labels); ++i) {
2965 if (!strcmp(parser->labels[i]->name, parser_tokval(parser))) {
2966 ast_goto_set_label(gt, parser->labels[i]);
2970 if (i == vec_size(parser->labels))
2971 vec_push(parser->gotos, gt);
2973 if (!parser_next(parser) || parser->tok != ';') {
2974 parseerror(parser, "semicolon expected after goto label");
2977 if (!parser_next(parser)) {
2978 parseerror(parser, "parse error after goto");
2982 *out = (ast_expression*)gt;
2986 static bool parse_skipwhite(parser_t *parser)
2989 if (!parser_next(parser))
2991 } while (parser->tok == TOKEN_WHITE && parser->tok < TOKEN_ERROR);
2992 return parser->tok < TOKEN_ERROR;
2995 static bool parse_eol(parser_t *parser)
2997 if (!parse_skipwhite(parser))
2999 return parser->tok == TOKEN_EOL;
3002 static bool parse_pragma_do(parser_t *parser)
3004 if (!parser_next(parser) ||
3005 parser->tok != TOKEN_IDENT ||
3006 strcmp(parser_tokval(parser), "pragma"))
3008 parseerror(parser, "expected `pragma` keyword after `#`, got `%s`", parser_tokval(parser));
3011 if (!parse_skipwhite(parser) || parser->tok != TOKEN_IDENT) {
3012 parseerror(parser, "expected pragma, got `%s`", parser_tokval(parser));
3016 if (!strcmp(parser_tokval(parser), "noref")) {
3017 if (!parse_skipwhite(parser) || parser->tok != TOKEN_INTCONST) {
3018 parseerror(parser, "`noref` pragma requires an argument: 0 or 1");
3021 parser->noref = !!parser_token(parser)->constval.i;
3022 if (!parse_eol(parser)) {
3023 parseerror(parser, "parse error after `noref` pragma");
3029 (void)!parsewarning(parser, WARN_UNKNOWN_PRAGMAS, "ignoring #pragma %s", parser_tokval(parser));
3036 static bool parse_pragma(parser_t *parser)
3039 parser->lex->flags.preprocessing = true;
3040 parser->lex->flags.mergelines = true;
3041 rv = parse_pragma_do(parser);
3042 if (parser->tok != TOKEN_EOL) {
3043 parseerror(parser, "junk after pragma");
3046 parser->lex->flags.preprocessing = false;
3047 parser->lex->flags.mergelines = false;
3048 if (!parser_next(parser)) {
3049 parseerror(parser, "parse error after pragma");
3055 static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases)
3057 bool noref, is_static;
3059 uint32_t qflags = 0;
3060 ast_value *typevar = NULL;
3061 char *vstring = NULL;
3065 if (parser->tok == TOKEN_IDENT)
3066 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
3068 if (typevar || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
3070 /* local variable */
3072 parseerror(parser, "cannot declare a variable from here");
3075 if (opts.standard == COMPILER_QCC) {
3076 if (parsewarning(parser, WARN_EXTENSIONS, "missing 'local' keyword when declaring a local variable"))
3079 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL))
3083 else if (parse_qualifiers(parser, !!block, &cvq, &noref, &is_static, &qflags, &vstring))
3085 if (cvq == CV_WRONG)
3087 return parse_variable(parser, block, true, cvq, NULL, noref, is_static, qflags, vstring);
3089 else if (parser->tok == TOKEN_KEYWORD)
3091 if (!strcmp(parser_tokval(parser), "__builtin_debug_printtype"))
3096 if (!parser_next(parser)) {
3097 parseerror(parser, "parse error after __builtin_debug_printtype");
3101 if (parser->tok == TOKEN_IDENT && (tdef = parser_find_typedef(parser, parser_tokval(parser), 0)))
3103 ast_type_to_string((ast_expression*)tdef, ty, sizeof(ty));
3104 con_out("__builtin_debug_printtype: `%s`=`%s`\n", tdef->name, ty);
3105 if (!parser_next(parser)) {
3106 parseerror(parser, "parse error after __builtin_debug_printtype typename argument");
3112 if (!parse_statement(parser, block, out, allow_cases))
3115 con_out("__builtin_debug_printtype: got no output node\n");
3118 ast_type_to_string(*out, ty, sizeof(ty));
3119 con_out("__builtin_debug_printtype: `%s`\n", ty);
3124 else if (!strcmp(parser_tokval(parser), "return"))
3126 return parse_return(parser, block, out);
3128 else if (!strcmp(parser_tokval(parser), "if"))
3130 return parse_if(parser, block, out);
3132 else if (!strcmp(parser_tokval(parser), "while"))
3134 return parse_while(parser, block, out);
3136 else if (!strcmp(parser_tokval(parser), "do"))
3138 return parse_dowhile(parser, block, out);
3140 else if (!strcmp(parser_tokval(parser), "for"))
3142 if (opts.standard == COMPILER_QCC) {
3143 if (parsewarning(parser, WARN_EXTENSIONS, "for loops are not recognized in the original Quake C standard, to enable try an alternate standard --std=?"))
3146 return parse_for(parser, block, out);
3148 else if (!strcmp(parser_tokval(parser), "break"))
3150 return parse_break_continue(parser, block, out, false);
3152 else if (!strcmp(parser_tokval(parser), "continue"))
3154 return parse_break_continue(parser, block, out, true);
3156 else if (!strcmp(parser_tokval(parser), "switch"))
3158 return parse_switch(parser, block, out);
3160 else if (!strcmp(parser_tokval(parser), "case") ||
3161 !strcmp(parser_tokval(parser), "default"))
3164 parseerror(parser, "unexpected 'case' label");
3169 else if (!strcmp(parser_tokval(parser), "goto"))
3171 return parse_goto(parser, out);
3173 else if (!strcmp(parser_tokval(parser), "typedef"))
3175 if (!parser_next(parser)) {
3176 parseerror(parser, "expected type definition after 'typedef'");
3179 return parse_typedef(parser);
3181 parseerror(parser, "Unexpected keyword");
3184 else if (parser->tok == '{')
3187 inner = parse_block(parser);
3190 *out = (ast_expression*)inner;
3193 else if (parser->tok == ':')
3197 if (!parser_next(parser)) {
3198 parseerror(parser, "expected label name");
3201 if (parser->tok != TOKEN_IDENT) {
3202 parseerror(parser, "label must be an identifier");
3205 label = ast_label_new(parser_ctx(parser), parser_tokval(parser));
3208 vec_push(parser->labels, label);
3209 *out = (ast_expression*)label;
3210 if (!parser_next(parser)) {
3211 parseerror(parser, "parse error after label");
3214 for (i = 0; i < vec_size(parser->gotos); ++i) {
3215 if (!strcmp(parser->gotos[i]->name, label->name)) {
3216 ast_goto_set_label(parser->gotos[i], label);
3217 vec_remove(parser->gotos, i, 1);
3223 else if (parser->tok == ';')
3225 if (!parser_next(parser)) {
3226 parseerror(parser, "parse error after empty statement");
3233 ast_expression *exp = parse_expression(parser, false);
3237 if (!ast_side_effects(exp)) {
3238 if (genwarning(ast_ctx(exp), WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
3245 static bool parse_block_into(parser_t *parser, ast_block *block)
3249 parser_enterblock(parser);
3251 if (!parser_next(parser)) { /* skip the '{' */
3252 parseerror(parser, "expected function body");
3256 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
3258 ast_expression *expr = NULL;
3259 if (parser->tok == '}')
3262 if (!parse_statement(parser, block, &expr, false)) {
3263 /* parseerror(parser, "parse error"); */
3269 if (!ast_block_add_expr(block, expr)) {
3276 if (parser->tok != '}') {
3279 (void)parser_next(parser);
3283 if (!parser_leaveblock(parser))
3285 return retval && !!block;
3288 static ast_block* parse_block(parser_t *parser)
3291 block = ast_block_new(parser_ctx(parser));
3294 if (!parse_block_into(parser, block)) {
3295 ast_block_delete(block);
3301 static bool parse_statement_or_block(parser_t *parser, ast_expression **out)
3303 if (parser->tok == '{') {
3304 *out = (ast_expression*)parse_block(parser);
3307 return parse_statement(parser, NULL, out, false);
3310 static bool create_vector_members(ast_value *var, ast_member **me)
3313 size_t len = strlen(var->name);
3315 for (i = 0; i < 3; ++i) {
3316 char *name = (char*)mem_a(len+3);
3317 memcpy(name, var->name, len);
3319 name[len+1] = 'x'+i;
3321 me[i] = ast_member_new(ast_ctx(var), (ast_expression*)var, i, name);
3330 do { ast_member_delete(me[--i]); } while(i);
3334 static bool parse_function_body(parser_t *parser, ast_value *var)
3336 ast_block *block = NULL;
3341 ast_expression *framenum = NULL;
3342 ast_expression *nextthink = NULL;
3343 /* None of the following have to be deleted */
3344 ast_expression *fld_think = NULL, *fld_nextthink = NULL, *fld_frame = NULL;
3345 ast_expression *gbl_time = NULL, *gbl_self = NULL;
3346 bool has_frame_think;
3350 has_frame_think = false;
3351 old = parser->function;
3353 if (vec_size(parser->gotos) || vec_size(parser->labels)) {
3354 parseerror(parser, "gotos/labels leaking");
3358 if (var->expression.flags & AST_FLAG_VARIADIC) {
3359 if (parsewarning(parser, WARN_VARIADIC_FUNCTION,
3360 "variadic function with implementation will not be able to access additional parameters"))
3366 if (parser->tok == '[') {
3367 /* got a frame definition: [ framenum, nextthink ]
3368 * this translates to:
3369 * self.frame = framenum;
3370 * self.nextthink = time + 0.1;
3371 * self.think = nextthink;
3375 fld_think = parser_find_field(parser, "think");
3376 fld_nextthink = parser_find_field(parser, "nextthink");
3377 fld_frame = parser_find_field(parser, "frame");
3378 if (!fld_think || !fld_nextthink || !fld_frame) {
3379 parseerror(parser, "cannot use [frame,think] notation without the required fields");
3380 parseerror(parser, "please declare the following entityfields: `frame`, `think`, `nextthink`");
3383 gbl_time = parser_find_global(parser, "time");
3384 gbl_self = parser_find_global(parser, "self");
3385 if (!gbl_time || !gbl_self) {
3386 parseerror(parser, "cannot use [frame,think] notation without the required globals");
3387 parseerror(parser, "please declare the following globals: `time`, `self`");
3391 if (!parser_next(parser))
3394 framenum = parse_expression_leave(parser, true);
3396 parseerror(parser, "expected a framenumber constant in[frame,think] notation");
3399 if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->hasvalue) {
3400 ast_unref(framenum);
3401 parseerror(parser, "framenumber in [frame,think] notation must be a constant");
3405 if (parser->tok != ',') {
3406 ast_unref(framenum);
3407 parseerror(parser, "expected comma after frame number in [frame,think] notation");
3408 parseerror(parser, "Got a %i\n", parser->tok);
3412 if (!parser_next(parser)) {
3413 ast_unref(framenum);
3417 if (parser->tok == TOKEN_IDENT && !parser_find_var(parser, parser_tokval(parser)))
3419 /* qc allows the use of not-yet-declared functions here
3420 * - this automatically creates a prototype */
3421 ast_value *thinkfunc;
3422 ast_expression *functype = fld_think->expression.next;
3424 thinkfunc = ast_value_new(parser_ctx(parser), parser_tokval(parser), functype->expression.vtype);
3425 if (!thinkfunc || !ast_type_adopt(thinkfunc, functype)) {
3426 ast_unref(framenum);
3427 parseerror(parser, "failed to create implicit prototype for `%s`", parser_tokval(parser));
3431 if (!parser_next(parser)) {
3432 ast_unref(framenum);
3433 ast_delete(thinkfunc);
3437 vec_push(parser->globals, (ast_expression*)thinkfunc);
3438 util_htset(parser->htglobals, thinkfunc->name, thinkfunc);
3439 nextthink = (ast_expression*)thinkfunc;
3442 nextthink = parse_expression_leave(parser, true);
3444 ast_unref(framenum);
3445 parseerror(parser, "expected a think-function in [frame,think] notation");
3450 if (!ast_istype(nextthink, ast_value)) {
3451 parseerror(parser, "think-function in [frame,think] notation must be a constant");
3455 if (retval && parser->tok != ']') {
3456 parseerror(parser, "expected closing `]` for [frame,think] notation");
3460 if (retval && !parser_next(parser)) {
3464 if (retval && parser->tok != '{') {
3465 parseerror(parser, "a function body has to be declared after a [frame,think] declaration");
3470 ast_unref(nextthink);
3471 ast_unref(framenum);
3475 has_frame_think = true;
3478 block = ast_block_new(parser_ctx(parser));
3480 parseerror(parser, "failed to allocate block");
3481 if (has_frame_think) {
3482 ast_unref(nextthink);
3483 ast_unref(framenum);
3488 if (has_frame_think) {
3490 ast_expression *self_frame;
3491 ast_expression *self_nextthink;
3492 ast_expression *self_think;
3493 ast_expression *time_plus_1;
3494 ast_store *store_frame;
3495 ast_store *store_nextthink;
3496 ast_store *store_think;
3498 ctx = parser_ctx(parser);
3499 self_frame = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_frame);
3500 self_nextthink = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_nextthink);
3501 self_think = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_think);
3503 time_plus_1 = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F,
3504 gbl_time, (ast_expression*)parser_const_float(parser, 0.1));
3506 if (!self_frame || !self_nextthink || !self_think || !time_plus_1) {
3507 if (self_frame) ast_delete(self_frame);
3508 if (self_nextthink) ast_delete(self_nextthink);
3509 if (self_think) ast_delete(self_think);
3510 if (time_plus_1) ast_delete(time_plus_1);
3516 store_frame = ast_store_new(ctx, INSTR_STOREP_F, self_frame, framenum);
3517 store_nextthink = ast_store_new(ctx, INSTR_STOREP_F, self_nextthink, time_plus_1);
3518 store_think = ast_store_new(ctx, INSTR_STOREP_FNC, self_think, nextthink);
3521 ast_delete(self_frame);
3524 if (!store_nextthink) {
3525 ast_delete(self_nextthink);
3529 ast_delete(self_think);
3533 if (store_frame) ast_delete(store_frame);
3534 if (store_nextthink) ast_delete(store_nextthink);
3535 if (store_think) ast_delete(store_think);
3538 if (!ast_block_add_expr(block, (ast_expression*)store_frame) ||
3539 !ast_block_add_expr(block, (ast_expression*)store_nextthink) ||
3540 !ast_block_add_expr(block, (ast_expression*)store_think))
3547 parseerror(parser, "failed to generate code for [frame,think]");
3548 ast_unref(nextthink);
3549 ast_unref(framenum);
3555 parser_enterblock(parser);
3557 for (parami = 0; parami < vec_size(var->expression.params); ++parami) {
3559 ast_value *param = var->expression.params[parami];
3562 if (param->expression.vtype != TYPE_VECTOR &&
3563 (param->expression.vtype != TYPE_FIELD ||
3564 param->expression.next->expression.vtype != TYPE_VECTOR))
3569 if (!create_vector_members(param, me)) {
3570 ast_block_delete(block);
3574 for (e = 0; e < 3; ++e) {
3575 parser_addlocal(parser, me[e]->name, (ast_expression*)me[e]);
3576 ast_block_collect(block, (ast_expression*)me[e]);
3580 func = ast_function_new(ast_ctx(var), var->name, var);
3582 parseerror(parser, "failed to allocate function for `%s`", var->name);
3583 ast_block_delete(block);
3586 vec_push(parser->functions, func);
3588 parser->function = func;
3589 if (!parse_block_into(parser, block)) {
3590 ast_block_delete(block);
3594 vec_push(func->blocks, block);
3596 parser->function = old;
3597 if (!parser_leaveblock(parser))
3599 if (vec_size(parser->variables) != PARSER_HT_LOCALS) {
3600 parseerror(parser, "internal error: local scopes left");
3604 if (parser->tok == ';')
3605 return parser_next(parser);
3606 else if (opts.standard == COMPILER_QCC)
3607 parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)");
3611 vec_pop(parser->functions);
3612 ast_function_delete(func);
3613 var->constval.vfunc = NULL;
3616 (void)!parser_leaveblock(parser);
3617 parser->function = old;
3621 static ast_expression *array_accessor_split(
3626 ast_expression *left,
3627 ast_expression *right
3633 lex_ctx ctx = ast_ctx(array);
3635 if (!left || !right) {
3636 if (left) ast_delete(left);
3637 if (right) ast_delete(right);
3641 cmp = ast_binary_new(ctx, INSTR_LT,
3642 (ast_expression*)index,
3643 (ast_expression*)parser_const_float(parser, middle));
3647 parseerror(parser, "internal error: failed to create comparison for array setter");
3651 ifthen = ast_ifthen_new(ctx, (ast_expression*)cmp, left, right);
3653 ast_delete(cmp); /* will delete left and right */
3654 parseerror(parser, "internal error: failed to create conditional jump for array setter");
3658 return (ast_expression*)ifthen;
3661 static ast_expression *array_setter_node(parser_t *parser, ast_value *array, ast_value *index, ast_value *value, size_t from, size_t afterend)
3663 lex_ctx ctx = ast_ctx(array);
3665 if (from+1 == afterend) {
3666 /* set this value */
3669 ast_array_index *subscript;
3671 int assignop = type_store_instr[value->expression.vtype];
3673 if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR)
3674 assignop = INSTR_STORE_V;
3676 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
3680 st = ast_store_new(ctx, assignop, (ast_expression*)subscript, (ast_expression*)value);
3682 ast_delete(subscript);
3686 block = ast_block_new(ctx);
3692 if (!ast_block_add_expr(block, (ast_expression*)st)) {
3697 ret = ast_return_new(ctx, NULL);
3703 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
3708 return (ast_expression*)block;
3710 ast_expression *left, *right;
3711 size_t diff = afterend - from;
3712 size_t middle = from + diff/2;
3713 left = array_setter_node(parser, array, index, value, from, middle);
3714 right = array_setter_node(parser, array, index, value, middle, afterend);
3715 return array_accessor_split(parser, array, index, middle, left, right);
3719 static ast_expression *array_field_setter_node(
3728 lex_ctx ctx = ast_ctx(array);
3730 if (from+1 == afterend) {
3731 /* set this value */
3734 ast_entfield *entfield;
3735 ast_array_index *subscript;
3737 int assignop = type_storep_instr[value->expression.vtype];
3739 if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR)
3740 assignop = INSTR_STOREP_V;
3742 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
3746 entfield = ast_entfield_new_force(ctx,
3747 (ast_expression*)entity,
3748 (ast_expression*)subscript,
3749 (ast_expression*)subscript);
3751 ast_delete(subscript);
3755 st = ast_store_new(ctx, assignop, (ast_expression*)entfield, (ast_expression*)value);
3757 ast_delete(entfield);
3761 block = ast_block_new(ctx);
3767 if (!ast_block_add_expr(block, (ast_expression*)st)) {
3772 ret = ast_return_new(ctx, NULL);
3778 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
3783 return (ast_expression*)block;
3785 ast_expression *left, *right;
3786 size_t diff = afterend - from;
3787 size_t middle = from + diff/2;
3788 left = array_field_setter_node(parser, array, entity, index, value, from, middle);
3789 right = array_field_setter_node(parser, array, entity, index, value, middle, afterend);
3790 return array_accessor_split(parser, array, index, middle, left, right);
3794 static ast_expression *array_getter_node(parser_t *parser, ast_value *array, ast_value *index, size_t from, size_t afterend)
3796 lex_ctx ctx = ast_ctx(array);
3798 if (from+1 == afterend) {
3800 ast_array_index *subscript;
3802 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
3806 ret = ast_return_new(ctx, (ast_expression*)subscript);
3808 ast_delete(subscript);
3812 return (ast_expression*)ret;
3814 ast_expression *left, *right;
3815 size_t diff = afterend - from;
3816 size_t middle = from + diff/2;
3817 left = array_getter_node(parser, array, index, from, middle);
3818 right = array_getter_node(parser, array, index, middle, afterend);
3819 return array_accessor_split(parser, array, index, middle, left, right);
3823 static bool parser_create_array_accessor(parser_t *parser, ast_value *array, const char *funcname, ast_value **out)
3825 ast_function *func = NULL;
3826 ast_value *fval = NULL;
3827 ast_block *body = NULL;
3829 fval = ast_value_new(ast_ctx(array), funcname, TYPE_FUNCTION);
3831 parseerror(parser, "failed to create accessor function value");
3835 func = ast_function_new(ast_ctx(array), funcname, fval);
3838 parseerror(parser, "failed to create accessor function node");
3842 body = ast_block_new(ast_ctx(array));
3844 parseerror(parser, "failed to create block for array accessor");
3850 vec_push(func->blocks, body);
3853 vec_push(parser->accessors, fval);
3858 static bool parser_create_array_setter(parser_t *parser, ast_value *array, const char *funcname)
3860 ast_expression *root = NULL;
3861 ast_value *index = NULL;
3862 ast_value *value = NULL;
3866 if (!ast_istype(array->expression.next, ast_value)) {
3867 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
3871 if (!parser_create_array_accessor(parser, array, funcname, &fval))
3873 func = fval->constval.vfunc;
3874 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
3876 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
3877 value = ast_value_copy((ast_value*)array->expression.next);
3879 if (!index || !value) {
3880 parseerror(parser, "failed to create locals for array accessor");
3883 (void)!ast_value_set_name(value, "value"); /* not important */
3884 vec_push(fval->expression.params, index);
3885 vec_push(fval->expression.params, value);
3887 root = array_setter_node(parser, array, index, value, 0, array->expression.count);
3889 parseerror(parser, "failed to build accessor search tree");
3893 array->setter = fval;
3894 return ast_block_add_expr(func->blocks[0], root);
3896 if (index) ast_delete(index);
3897 if (value) ast_delete(value);
3898 if (root) ast_delete(root);
3904 static bool parser_create_array_field_setter(parser_t *parser, ast_value *array, const char *funcname)
3906 ast_expression *root = NULL;
3907 ast_value *entity = NULL;
3908 ast_value *index = NULL;
3909 ast_value *value = NULL;
3913 if (!ast_istype(array->expression.next, ast_value)) {
3914 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
3918 if (!parser_create_array_accessor(parser, array, funcname, &fval))
3920 func = fval->constval.vfunc;
3921 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
3923 entity = ast_value_new(ast_ctx(array), "entity", TYPE_ENTITY);
3924 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
3925 value = ast_value_copy((ast_value*)array->expression.next);
3926 if (!entity || !index || !value) {
3927 parseerror(parser, "failed to create locals for array accessor");
3930 (void)!ast_value_set_name(value, "value"); /* not important */
3931 vec_push(fval->expression.params, entity);
3932 vec_push(fval->expression.params, index);
3933 vec_push(fval->expression.params, value);
3935 root = array_field_setter_node(parser, array, entity, index, value, 0, array->expression.count);
3937 parseerror(parser, "failed to build accessor search tree");
3941 array->setter = fval;
3942 return ast_block_add_expr(func->blocks[0], root);
3944 if (entity) ast_delete(entity);
3945 if (index) ast_delete(index);
3946 if (value) ast_delete(value);
3947 if (root) ast_delete(root);
3953 static bool parser_create_array_getter(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
3955 ast_expression *root = NULL;
3956 ast_value *index = NULL;
3960 /* NOTE: checking array->expression.next rather than elemtype since
3961 * for fields elemtype is a temporary fieldtype.
3963 if (!ast_istype(array->expression.next, ast_value)) {
3964 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
3968 if (!parser_create_array_accessor(parser, array, funcname, &fval))
3970 func = fval->constval.vfunc;
3971 fval->expression.next = ast_type_copy(ast_ctx(array), elemtype);
3973 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
3976 parseerror(parser, "failed to create locals for array accessor");
3979 vec_push(fval->expression.params, index);
3981 root = array_getter_node(parser, array, index, 0, array->expression.count);
3983 parseerror(parser, "failed to build accessor search tree");
3987 array->getter = fval;
3988 return ast_block_add_expr(func->blocks[0], root);
3990 if (index) ast_delete(index);
3991 if (root) ast_delete(root);
3997 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
3998 static ast_value *parse_parameter_list(parser_t *parser, ast_value *var)
4006 bool variadic = false;
4008 ctx = parser_ctx(parser);
4010 /* for the sake of less code we parse-in in this function */
4011 if (!parser_next(parser)) {
4012 parseerror(parser, "expected parameter list");
4018 /* parse variables until we hit a closing paren */
4019 while (parser->tok != ')') {
4021 /* there must be commas between them */
4022 if (parser->tok != ',') {
4023 parseerror(parser, "expected comma or end of parameter list");
4026 if (!parser_next(parser)) {
4027 parseerror(parser, "expected parameter");
4033 if (parser->tok == TOKEN_DOTS) {
4034 /* '...' indicates a varargs function */
4036 if (!parser_next(parser)) {
4037 parseerror(parser, "expected parameter");
4040 if (parser->tok != ')') {
4041 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4047 /* for anything else just parse a typename */
4048 param = parse_typename(parser, NULL, NULL);
4051 vec_push(params, param);
4052 if (param->expression.vtype >= TYPE_VARIANT) {
4053 char tname[1024]; /* typename is reserved in C++ */
4054 ast_type_to_string((ast_expression*)param, tname, sizeof(tname));
4055 parseerror(parser, "type not supported as part of a parameter list: %s", tname);
4061 if (vec_size(params) == 1 && params[0]->expression.vtype == TYPE_VOID)
4065 if (vec_size(params) > 8 && opts.standard == COMPILER_QCC)
4066 (void)!parsewarning(parser, WARN_EXTENSIONS, "more than 8 parameters are not supported by this standard");
4069 if (!parser_next(parser)) {
4070 parseerror(parser, "parse error after typename");
4074 /* now turn 'var' into a function type */
4075 fval = ast_value_new(ctx, "<type()>", TYPE_FUNCTION);
4076 fval->expression.next = (ast_expression*)var;
4078 fval->expression.flags |= AST_FLAG_VARIADIC;
4081 var->expression.params = params;
4088 for (i = 0; i < vec_size(params); ++i)
4089 ast_delete(params[i]);
4094 static ast_value *parse_arraysize(parser_t *parser, ast_value *var)
4096 ast_expression *cexp;
4097 ast_value *cval, *tmp;
4100 ctx = parser_ctx(parser);
4102 if (!parser_next(parser)) {
4104 parseerror(parser, "expected array-size");
4108 cexp = parse_expression_leave(parser, true);
4110 if (!cexp || !ast_istype(cexp, ast_value)) {
4114 parseerror(parser, "expected array-size as constant positive integer");
4117 cval = (ast_value*)cexp;
4119 tmp = ast_value_new(ctx, "<type[]>", TYPE_ARRAY);
4120 tmp->expression.next = (ast_expression*)var;
4123 if (cval->expression.vtype == TYPE_INTEGER)
4124 tmp->expression.count = cval->constval.vint;
4125 else if (cval->expression.vtype == TYPE_FLOAT)
4126 tmp->expression.count = cval->constval.vfloat;
4130 parseerror(parser, "array-size must be a positive integer constant");
4135 if (parser->tok != ']') {
4137 parseerror(parser, "expected ']' after array-size");
4140 if (!parser_next(parser)) {
4142 parseerror(parser, "error after parsing array size");
4148 /* Parse a complete typename.
4149 * for single-variables (ie. function parameters or typedefs) storebase should be NULL
4150 * but when parsing variables separated by comma
4151 * 'storebase' should point to where the base-type should be kept.
4152 * The base type makes up every bit of type information which comes *before* the
4155 * The following will be parsed in its entirety:
4157 * The 'basetype' in this case is 'void()'
4158 * and if there's a comma after it, say:
4160 * then the type-information 'void()' can be stored in 'storebase'
4162 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef)
4164 ast_value *var, *tmp;
4167 const char *name = NULL;
4168 bool isfield = false;
4169 bool wasarray = false;
4170 size_t morefields = 0;
4172 ctx = parser_ctx(parser);
4174 /* types may start with a dot */
4175 if (parser->tok == '.') {
4177 /* if we parsed a dot we need a typename now */
4178 if (!parser_next(parser)) {
4179 parseerror(parser, "expected typename for field definition");
4183 /* Further dots are handled seperately because they won't be part of the
4186 while (parser->tok == '.') {
4188 if (!parser_next(parser)) {
4189 parseerror(parser, "expected typename for field definition");
4194 if (parser->tok == TOKEN_IDENT)
4195 cached_typedef = parser_find_typedef(parser, parser_tokval(parser), 0);
4196 if (!cached_typedef && parser->tok != TOKEN_TYPENAME) {
4197 parseerror(parser, "expected typename");
4201 /* generate the basic type value */
4202 if (cached_typedef) {
4203 var = ast_value_copy(cached_typedef);
4204 ast_value_set_name(var, "<type(from_def)>");
4206 var = ast_value_new(ctx, "<type>", parser_token(parser)->constval.t);
4208 for (; morefields; --morefields) {
4209 tmp = ast_value_new(ctx, "<.type>", TYPE_FIELD);
4210 tmp->expression.next = (ast_expression*)var;
4214 /* do not yet turn into a field - remember:
4215 * .void() foo; is a field too
4216 * .void()() foo; is a function
4220 if (!parser_next(parser)) {
4222 parseerror(parser, "parse error after typename");
4226 /* an opening paren now starts the parameter-list of a function
4227 * this is where original-QC has parameter lists.
4228 * We allow a single parameter list here.
4229 * Much like fteqcc we don't allow `float()() x`
4231 if (parser->tok == '(') {
4232 var = parse_parameter_list(parser, var);
4237 /* store the base if requested */
4239 *storebase = ast_value_copy(var);
4241 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
4242 tmp->expression.next = (ast_expression*)*storebase;
4247 /* there may be a name now */
4248 if (parser->tok == TOKEN_IDENT) {
4249 name = util_strdup(parser_tokval(parser));
4251 if (!parser_next(parser)) {
4253 parseerror(parser, "error after variable or field declaration");
4258 /* now this may be an array */
4259 if (parser->tok == '[') {
4261 var = parse_arraysize(parser, var);
4266 /* This is the point where we can turn it into a field */
4268 /* turn it into a field if desired */
4269 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
4270 tmp->expression.next = (ast_expression*)var;
4274 /* now there may be function parens again */
4275 if (parser->tok == '(' && opts.standard == COMPILER_QCC)
4276 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4277 if (parser->tok == '(' && wasarray)
4278 parseerror(parser, "arrays as part of a return type is not supported");
4279 while (parser->tok == '(') {
4280 var = parse_parameter_list(parser, var);
4289 /* finally name it */
4291 if (!ast_value_set_name(var, name)) {
4293 parseerror(parser, "internal error: failed to set name");
4296 /* free the name, ast_value_set_name duplicates */
4303 static bool parse_typedef(parser_t *parser)
4305 ast_value *typevar, *oldtype;
4306 ast_expression *old;
4308 typevar = parse_typename(parser, NULL, NULL);
4313 if ( (old = parser_find_var(parser, typevar->name)) ) {
4314 parseerror(parser, "cannot define a type with the same name as a variable: %s\n"
4315 " -> `%s` has been declared here: %s:%i",
4316 typevar->name, ast_ctx(old).file, ast_ctx(old).line);
4317 ast_delete(typevar);
4321 if ( (oldtype = parser_find_typedef(parser, typevar->name, vec_last(parser->_blocktypedefs))) ) {
4322 parseerror(parser, "type `%s` has already been declared here: %s:%i",
4323 typevar->name, ast_ctx(oldtype).file, ast_ctx(oldtype).line);
4324 ast_delete(typevar);
4328 vec_push(parser->_typedefs, typevar);
4329 util_htset(vec_last(parser->typedefs), typevar->name, typevar);
4331 if (parser->tok != ';') {
4332 parseerror(parser, "expected semicolon after typedef");
4335 if (!parser_next(parser)) {
4336 parseerror(parser, "parse error after typedef");
4343 static const char *cvq_to_str(int cvq) {
4345 case CV_NONE: return "none";
4346 case CV_VAR: return "`var`";
4347 case CV_CONST: return "`const`";
4348 default: return "<INVALID>";
4352 static bool parser_check_qualifiers(parser_t *parser, const ast_value *var, const ast_value *proto)
4355 if (proto->cvq != var->cvq) {
4356 if (!(proto->cvq == CV_CONST && var->cvq == CV_NONE &&
4357 !OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
4358 parser->tok == '='))
4360 return !parsewarning(parser, WARN_DIFFERENT_QUALIFIERS,
4361 "`%s` declared with different qualifiers: %s\n"
4362 " -> previous declaration here: %s:%i uses %s",
4363 var->name, cvq_to_str(var->cvq),
4364 ast_ctx(proto).file, ast_ctx(proto).line,
4365 cvq_to_str(proto->cvq));
4368 av = (var ->expression.flags & AST_FLAG_NORETURN);
4369 ao = (proto->expression.flags & AST_FLAG_NORETURN);
4371 return !parsewarning(parser, WARN_DIFFERENT_ATTRIBUTES,
4372 "`%s` declared with different attributes%s\n"
4373 " -> previous declaration here: %s:%i",
4374 var->name, (av ? ": noreturn" : ""),
4375 ast_ctx(proto).file, ast_ctx(proto).line,
4376 (ao ? ": noreturn" : ""));
4381 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)
4385 ast_expression *old;
4389 ast_value *basetype = NULL;
4391 bool isparam = false;
4392 bool isvector = false;
4393 bool cleanvar = true;
4394 bool wasarray = false;
4398 if (!localblock && is_static)
4399 parseerror(parser, "`static` qualifier is not supported in global scope");
4401 /* get the first complete variable */
4402 var = parse_typename(parser, &basetype, cached_typedef);
4405 ast_delete(basetype);
4413 /* Part 0: finish the type */
4414 if (parser->tok == '(') {
4415 if (opts.standard == COMPILER_QCC)
4416 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4417 var = parse_parameter_list(parser, var);
4423 /* we only allow 1-dimensional arrays */
4424 if (parser->tok == '[') {
4426 var = parse_arraysize(parser, var);
4432 if (parser->tok == '(' && wasarray) {
4433 parseerror(parser, "arrays as part of a return type is not supported");
4434 /* we'll still parse the type completely for now */
4436 /* for functions returning functions */
4437 while (parser->tok == '(') {
4438 if (opts.standard == COMPILER_QCC)
4439 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4440 var = parse_parameter_list(parser, var);
4447 var->cvq = qualifier;
4448 var->expression.flags |= qflags;
4449 if (var->expression.flags & AST_FLAG_DEPRECATED)
4450 var->desc = vstring;
4453 * check for validity: (end_sys_..., multiple-definitions, prototypes, ...)
4454 * Also: if there was a prototype, `var` will be deleted and set to `proto` which
4455 * is then filled with the previous definition and the parameter-names replaced.
4457 if (!strcmp(var->name, "nil")) {
4458 if (OPTS_FLAG(UNTYPED_NIL)) {
4459 if (!localblock || !OPTS_FLAG(PERMISSIVE))
4460 parseerror(parser, "name `nil` not allowed (try -fpermissive)");
4462 (void)!parsewarning(parser, WARN_RESERVED_NAMES, "variable name `nil` is reserved");
4465 /* Deal with end_sys_ vars */
4467 if (!strcmp(var->name, "end_sys_globals")) {
4469 parser->crc_globals = vec_size(parser->globals);
4472 else if (!strcmp(var->name, "end_sys_fields")) {
4474 parser->crc_fields = vec_size(parser->fields);
4477 if (was_end && var->expression.vtype == TYPE_FIELD) {
4478 if (parsewarning(parser, WARN_END_SYS_FIELDS,
4479 "global '%s' hint should not be a field",
4480 parser_tokval(parser)))
4487 if (!nofields && var->expression.vtype == TYPE_FIELD)
4489 /* deal with field declarations */
4490 old = parser_find_field(parser, var->name);
4492 if (parsewarning(parser, WARN_FIELD_REDECLARED, "field `%s` already declared here: %s:%i",
4493 var->name, ast_ctx(old).file, (int)ast_ctx(old).line))
4502 parseerror(parser, "field `%s` already declared here: %s:%i",
4503 var->name, ast_ctx(old).file, ast_ctx(old).line);
4508 if (opts.standard == COMPILER_QCC &&
4509 (old = parser_find_global(parser, var->name)))
4511 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
4512 parseerror(parser, "field `%s` already declared here: %s:%i",
4513 var->name, ast_ctx(old).file, ast_ctx(old).line);
4520 /* deal with other globals */
4521 old = parser_find_global(parser, var->name);
4522 if (old && var->expression.vtype == TYPE_FUNCTION && old->expression.vtype == TYPE_FUNCTION)
4524 /* This is a function which had a prototype */
4525 if (!ast_istype(old, ast_value)) {
4526 parseerror(parser, "internal error: prototype is not an ast_value");
4530 proto = (ast_value*)old;
4531 proto->desc = var->desc;
4532 if (!ast_compare_type((ast_expression*)proto, (ast_expression*)var)) {
4533 parseerror(parser, "conflicting types for `%s`, previous declaration was here: %s:%i",
4535 ast_ctx(proto).file, ast_ctx(proto).line);
4539 /* we need the new parameter-names */
4540 for (i = 0; i < vec_size(proto->expression.params); ++i)
4541 ast_value_set_name(proto->expression.params[i], var->expression.params[i]->name);
4542 if (!parser_check_qualifiers(parser, var, proto)) {
4549 proto->expression.flags |= var->expression.flags;
4557 if (opts.standard == COMPILER_GMQCC) {
4558 parseerror(parser, "global `%s` already declared here: %s:%i",
4559 var->name, ast_ctx(old).file, ast_ctx(old).line);
4563 if (parsewarning(parser, WARN_DOUBLE_DECLARATION,
4564 "global `%s` already declared here: %s:%i",
4565 var->name, ast_ctx(old).file, ast_ctx(old).line))
4570 proto = (ast_value*)old;
4571 if (!ast_istype(old, ast_value)) {
4572 parseerror(parser, "internal error: not an ast_value");
4577 if (!parser_check_qualifiers(parser, var, proto)) {
4582 proto->expression.flags |= var->expression.flags;
4587 if (opts.standard == COMPILER_QCC &&
4588 (old = parser_find_field(parser, var->name)))
4590 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
4591 parseerror(parser, "global `%s` already declared here: %s:%i",
4592 var->name, ast_ctx(old).file, ast_ctx(old).line);
4599 else /* it's not a global */
4601 old = parser_find_local(parser, var->name, vec_size(parser->variables)-1, &isparam);
4602 if (old && !isparam) {
4603 parseerror(parser, "local `%s` already declared here: %s:%i",
4604 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
4608 old = parser_find_local(parser, var->name, 0, &isparam);
4609 if (old && isparam) {
4610 if (parsewarning(parser, WARN_LOCAL_SHADOWS,
4611 "local `%s` is shadowing a parameter", var->name))
4613 parseerror(parser, "local `%s` already declared here: %s:%i",
4614 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
4618 if (opts.standard != COMPILER_GMQCC) {
4626 /* in a noref section we simply bump the usecount */
4627 if (noref || parser->noref)
4631 * Create the global/local, and deal with vector types.
4634 if (var->expression.vtype == TYPE_VECTOR)
4636 else if (var->expression.vtype == TYPE_FIELD &&
4637 var->expression.next->expression.vtype == TYPE_VECTOR)
4641 if (!create_vector_members(var, me)) {
4648 /* deal with global variables, fields, functions */
4649 if (!nofields && var->expression.vtype == TYPE_FIELD && parser->tok != '=') {
4650 var->isfield = true;
4651 vec_push(parser->fields, (ast_expression*)var);
4652 util_htset(parser->htfields, var->name, var);
4654 for (i = 0; i < 3; ++i) {
4655 vec_push(parser->fields, (ast_expression*)me[i]);
4656 util_htset(parser->htfields, me[i]->name, me[i]);
4661 vec_push(parser->globals, (ast_expression*)var);
4662 util_htset(parser->htglobals, var->name, var);
4664 for (i = 0; i < 3; ++i) {
4665 vec_push(parser->globals, (ast_expression*)me[i]);
4666 util_htset(parser->htglobals, me[i]->name, me[i]);
4672 /* a static adds itself to be generated like any other global
4673 * but is added to the local namespace instead
4675 char *defname = NULL;
4676 size_t prefix_len, ln;
4678 ln = strlen(parser->function->name);
4679 vec_append(defname, ln, parser->function->name);
4681 vec_append(defname, 2, "::");
4682 /* remember the length up to here */
4683 prefix_len = vec_size(defname);
4685 /* Add it to the local scope */
4686 util_htset(vec_last(parser->variables), var->name, (void*)var);
4687 /* now rename the global */
4688 ln = strlen(var->name);
4689 vec_append(defname, ln, var->name);
4690 ast_value_set_name(var, defname);
4692 /* push it to the to-be-generated globals */
4693 vec_push(parser->globals, (ast_expression*)var);
4695 /* same game for the vector members */
4697 for (i = 0; i < 3; ++i) {
4698 util_htset(vec_last(parser->variables), me[i]->name, (void*)(me[i]));
4700 vec_shrinkto(defname, prefix_len);
4701 ln = strlen(me[i]->name);
4702 vec_append(defname, ln, me[i]->name);
4703 ast_member_set_name(me[i], defname);
4705 vec_push(parser->globals, (ast_expression*)me[i]);
4710 vec_push(localblock->locals, var);
4711 parser_addlocal(parser, var->name, (ast_expression*)var);
4713 for (i = 0; i < 3; ++i) {
4714 parser_addlocal(parser, me[i]->name, (ast_expression*)me[i]);
4715 ast_block_collect(localblock, (ast_expression*)me[i]);
4721 me[0] = me[1] = me[2] = NULL;
4726 if (var->expression.vtype == TYPE_ARRAY) {
4728 snprintf(name, sizeof(name), "%s##SET", var->name);
4729 if (!parser_create_array_setter(parser, var, name))
4731 snprintf(name, sizeof(name), "%s##GET", var->name);
4732 if (!parser_create_array_getter(parser, var, var->expression.next, name))
4735 else if (!localblock && !nofields &&
4736 var->expression.vtype == TYPE_FIELD &&
4737 var->expression.next->expression.vtype == TYPE_ARRAY)
4740 ast_expression *telem;
4742 ast_value *array = (ast_value*)var->expression.next;
4744 if (!ast_istype(var->expression.next, ast_value)) {
4745 parseerror(parser, "internal error: field element type must be an ast_value");
4749 snprintf(name, sizeof(name), "%s##SETF", var->name);
4750 if (!parser_create_array_field_setter(parser, array, name))
4753 telem = ast_type_copy(ast_ctx(var), array->expression.next);
4754 tfield = ast_value_new(ast_ctx(var), "<.type>", TYPE_FIELD);
4755 tfield->expression.next = telem;
4756 snprintf(name, sizeof(name), "%s##GETFP", var->name);
4757 if (!parser_create_array_getter(parser, array, (ast_expression*)tfield, name)) {
4765 if (parser->tok == ';') {
4766 ast_delete(basetype);
4767 if (!parser_next(parser)) {
4768 parseerror(parser, "error after variable declaration");
4774 if (parser->tok == ',')
4778 if (!var || (!localblock && !nofields && basetype->expression.vtype == TYPE_FIELD)) {
4781 parseerror(parser, "missing comma or semicolon while parsing variables");
4785 if (localblock && opts.standard == COMPILER_QCC) {
4786 if (parsewarning(parser, WARN_LOCAL_CONSTANTS,
4787 "initializing expression turns variable `%s` into a constant in this standard",
4794 if (parser->tok != '{') {
4795 if (parser->tok != '=') {
4796 parseerror(parser, "missing semicolon or initializer, got: `%s`", parser_tokval(parser));
4800 if (!parser_next(parser)) {
4801 parseerror(parser, "error parsing initializer");
4805 else if (opts.standard == COMPILER_QCC) {
4806 parseerror(parser, "expected '=' before function body in this standard");
4809 if (parser->tok == '#') {
4810 ast_function *func = NULL;
4813 parseerror(parser, "cannot declare builtins within functions");
4816 if (var->expression.vtype != TYPE_FUNCTION) {
4817 parseerror(parser, "unexpected builtin number, '%s' is not a function", var->name);
4820 if (!parser_next(parser)) {
4821 parseerror(parser, "expected builtin number");
4824 if (parser->tok != TOKEN_INTCONST) {
4825 parseerror(parser, "builtin number must be an integer constant");
4828 if (parser_token(parser)->constval.i < 0) {
4829 parseerror(parser, "builtin number must be an integer greater than zero");
4833 if (var->hasvalue) {
4834 (void)!parsewarning(parser, WARN_DOUBLE_DECLARATION,
4835 "builtin `%s` has already been defined\n"
4836 " -> previous declaration here: %s:%i",
4837 var->name, ast_ctx(var).file, (int)ast_ctx(var).line);
4841 func = ast_function_new(ast_ctx(var), var->name, var);
4843 parseerror(parser, "failed to allocate function for `%s`", var->name);
4846 vec_push(parser->functions, func);
4848 func->builtin = -parser_token(parser)->constval.i-1;
4851 if (!parser_next(parser)) {
4852 parseerror(parser, "expected comma or semicolon");
4854 ast_function_delete(func);
4855 var->constval.vfunc = NULL;
4859 else if (parser->tok == '{' || parser->tok == '[')
4862 parseerror(parser, "cannot declare functions within functions");
4867 ast_ctx(proto) = parser_ctx(parser);
4869 if (!parse_function_body(parser, var))
4871 ast_delete(basetype);
4872 for (i = 0; i < vec_size(parser->gotos); ++i)
4873 parseerror(parser, "undefined label: `%s`", parser->gotos[i]->name);
4874 vec_free(parser->gotos);
4875 vec_free(parser->labels);
4878 ast_expression *cexp;
4881 cexp = parse_expression_leave(parser, true);
4886 cval = (ast_value*)cexp;
4887 if (cval != parser->nil &&
4888 (!ast_istype(cval, ast_value) || ((!cval->hasvalue || cval->cvq != CV_CONST) && !cval->isfield))
4891 parseerror(parser, "cannot initialize a global constant variable with a non-constant expression");
4895 if (opts.standard != COMPILER_GMQCC &&
4896 !OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
4897 qualifier != CV_VAR)
4899 var->cvq = CV_CONST;
4901 if (cval == parser->nil)
4902 var->expression.flags |= AST_FLAG_INITIALIZED;
4905 var->hasvalue = true;
4906 if (cval->expression.vtype == TYPE_STRING)
4907 var->constval.vstring = parser_strdup(cval->constval.vstring);
4908 else if (cval->expression.vtype == TYPE_FIELD)
4909 var->constval.vfield = cval;
4911 memcpy(&var->constval, &cval->constval, sizeof(var->constval));
4917 shunt sy = { NULL, NULL };
4920 vec_push(sy.out, syexp(ast_ctx(var), (ast_expression*)var));
4921 vec_push(sy.out, syexp(ast_ctx(cexp), (ast_expression*)cexp));
4922 vec_push(sy.ops, syop(ast_ctx(var), parser->assign_op));
4923 if (!parser_sy_apply_operator(parser, &sy))
4926 if (vec_size(sy.out) != 1 && vec_size(sy.ops) != 0)
4927 parseerror(parser, "internal error: leaked operands");
4928 if (!ast_block_add_expr(localblock, (ast_expression*)sy.out[0].out))
4938 if (parser->tok == ',') {
4939 if (!parser_next(parser)) {
4940 parseerror(parser, "expected another variable");
4944 if (parser->tok != TOKEN_IDENT) {
4945 parseerror(parser, "expected another variable");
4948 var = ast_value_copy(basetype);
4950 ast_value_set_name(var, parser_tokval(parser));
4951 if (!parser_next(parser)) {
4952 parseerror(parser, "error parsing variable declaration");
4958 if (parser->tok != ';') {
4959 parseerror(parser, "missing semicolon after variables");
4963 if (!parser_next(parser)) {
4964 parseerror(parser, "parse error after variable declaration");
4968 ast_delete(basetype);
4972 if (cleanvar && var)
4974 ast_delete(basetype);
4978 ast_delete(basetype);
4979 if (cleanvar && var)
4981 if (me[0]) ast_member_delete(me[0]);
4982 if (me[1]) ast_member_delete(me[1]);
4983 if (me[2]) ast_member_delete(me[2]);
4987 static bool parser_global_statement(parser_t *parser)
4991 bool is_static = false;
4992 uint32_t qflags = 0;
4993 ast_value *istype = NULL;
4994 char *vstring = NULL;
4996 if (parser->tok == TOKEN_IDENT)
4997 istype = parser_find_typedef(parser, parser_tokval(parser), 0);
4999 if (istype || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
5001 return parse_variable(parser, NULL, false, CV_NONE, istype, false, false, 0, NULL);
5003 else if (parse_qualifiers(parser, false, &cvq, &noref, &is_static, &qflags, &vstring))
5005 if (cvq == CV_WRONG)
5007 return parse_variable(parser, NULL, true, cvq, NULL, noref, is_static, qflags, vstring);
5009 else if (parser->tok == TOKEN_KEYWORD)
5011 if (!strcmp(parser_tokval(parser), "typedef")) {
5012 if (!parser_next(parser)) {
5013 parseerror(parser, "expected type definition after 'typedef'");
5016 return parse_typedef(parser);
5018 parseerror(parser, "unrecognized keyword `%s`", parser_tokval(parser));
5021 else if (parser->tok == '#')
5023 return parse_pragma(parser);
5025 else if (parser->tok == '$')
5027 if (!parser_next(parser)) {
5028 parseerror(parser, "parse error");
5034 parseerror(parser, "unexpected token: %s", parser->lex->tok.value);
5040 static uint16_t progdefs_crc_sum(uint16_t old, const char *str)
5042 return util_crc16(old, str, strlen(str));
5045 static void progdefs_crc_file(const char *str)
5047 /* write to progdefs.h here */
5051 static uint16_t progdefs_crc_both(uint16_t old, const char *str)
5053 old = progdefs_crc_sum(old, str);
5054 progdefs_crc_file(str);
5058 static void generate_checksum(parser_t *parser)
5060 uint16_t crc = 0xFFFF;
5064 crc = progdefs_crc_both(crc, "\n/* file generated by qcc, do not modify */\n\ntypedef struct\n{");
5065 crc = progdefs_crc_sum(crc, "\tint\tpad[28];\n");
5067 progdefs_crc_file("\tint\tpad;\n");
5068 progdefs_crc_file("\tint\tofs_return[3];\n");
5069 progdefs_crc_file("\tint\tofs_parm0[3];\n");
5070 progdefs_crc_file("\tint\tofs_parm1[3];\n");
5071 progdefs_crc_file("\tint\tofs_parm2[3];\n");
5072 progdefs_crc_file("\tint\tofs_parm3[3];\n");
5073 progdefs_crc_file("\tint\tofs_parm4[3];\n");
5074 progdefs_crc_file("\tint\tofs_parm5[3];\n");
5075 progdefs_crc_file("\tint\tofs_parm6[3];\n");
5076 progdefs_crc_file("\tint\tofs_parm7[3];\n");
5078 for (i = 0; i < parser->crc_globals; ++i) {
5079 if (!ast_istype(parser->globals[i], ast_value))
5081 value = (ast_value*)(parser->globals[i]);
5082 switch (value->expression.vtype) {
5083 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
5084 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
5085 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
5086 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
5088 crc = progdefs_crc_both(crc, "\tint\t");
5091 crc = progdefs_crc_both(crc, value->name);
5092 crc = progdefs_crc_both(crc, ";\n");
5094 crc = progdefs_crc_both(crc, "} globalvars_t;\n\ntypedef struct\n{\n");
5095 for (i = 0; i < parser->crc_fields; ++i) {
5096 if (!ast_istype(parser->fields[i], ast_value))
5098 value = (ast_value*)(parser->fields[i]);
5099 switch (value->expression.next->expression.vtype) {
5100 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
5101 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
5102 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
5103 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
5105 crc = progdefs_crc_both(crc, "\tint\t");
5108 crc = progdefs_crc_both(crc, value->name);
5109 crc = progdefs_crc_both(crc, ";\n");
5111 crc = progdefs_crc_both(crc, "} entvars_t;\n\n");
5116 static parser_t *parser;
5123 parser = (parser_t*)mem_a(sizeof(parser_t));
5127 memset(parser, 0, sizeof(*parser));
5129 for (i = 0; i < operator_count; ++i) {
5130 if (operators[i].id == opid1('=')) {
5131 parser->assign_op = operators+i;
5135 if (!parser->assign_op) {
5136 printf("internal error: initializing parser: failed to find assign operator\n");
5141 vec_push(parser->variables, parser->htfields = util_htnew(PARSER_HT_SIZE));
5142 vec_push(parser->variables, parser->htglobals = util_htnew(PARSER_HT_SIZE));
5143 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
5144 vec_push(parser->_blocktypedefs, 0);
5146 empty_ctx.file = "<internal>";
5148 parser->nil = ast_value_new(empty_ctx, "nil", TYPE_NIL);
5149 parser->nil->cvq = CV_CONST;
5150 if (OPTS_FLAG(UNTYPED_NIL))
5151 util_htset(parser->htglobals, "nil", (void*)parser->nil);
5155 bool parser_compile()
5157 /* initial lexer/parser state */
5158 parser->lex->flags.noops = true;
5160 if (parser_next(parser))
5162 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
5164 if (!parser_global_statement(parser)) {
5165 if (parser->tok == TOKEN_EOF)
5166 parseerror(parser, "unexpected eof");
5167 else if (compile_errors)
5168 parseerror(parser, "there have been errors, bailing out");
5169 lex_close(parser->lex);
5175 parseerror(parser, "parse error");
5176 lex_close(parser->lex);
5181 lex_close(parser->lex);
5184 return !compile_errors;
5187 bool parser_compile_file(const char *filename)
5189 parser->lex = lex_open(filename);
5191 con_err("failed to open file \"%s\"\n", filename);
5194 return parser_compile();
5197 bool parser_compile_string(const char *name, const char *str, size_t len)
5199 parser->lex = lex_open_string(str, len, name);
5201 con_err("failed to create lexer for string \"%s\"\n", name);
5204 return parser_compile();
5207 void parser_cleanup()
5210 for (i = 0; i < vec_size(parser->accessors); ++i) {
5211 ast_delete(parser->accessors[i]->constval.vfunc);
5212 parser->accessors[i]->constval.vfunc = NULL;
5213 ast_delete(parser->accessors[i]);
5215 for (i = 0; i < vec_size(parser->functions); ++i) {
5216 ast_delete(parser->functions[i]);
5218 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
5219 ast_delete(parser->imm_vector[i]);
5221 for (i = 0; i < vec_size(parser->imm_string); ++i) {
5222 ast_delete(parser->imm_string[i]);
5224 for (i = 0; i < vec_size(parser->imm_float); ++i) {
5225 ast_delete(parser->imm_float[i]);
5227 for (i = 0; i < vec_size(parser->fields); ++i) {
5228 ast_delete(parser->fields[i]);
5230 for (i = 0; i < vec_size(parser->globals); ++i) {
5231 ast_delete(parser->globals[i]);
5233 vec_free(parser->accessors);
5234 vec_free(parser->functions);
5235 vec_free(parser->imm_vector);
5236 vec_free(parser->imm_string);
5237 vec_free(parser->imm_float);
5238 vec_free(parser->globals);
5239 vec_free(parser->fields);
5241 for (i = 0; i < vec_size(parser->variables); ++i)
5242 util_htdel(parser->variables[i]);
5243 vec_free(parser->variables);
5244 vec_free(parser->_blocklocals);
5245 vec_free(parser->_locals);
5247 for (i = 0; i < vec_size(parser->_typedefs); ++i)
5248 ast_delete(parser->_typedefs[i]);
5249 vec_free(parser->_typedefs);
5250 for (i = 0; i < vec_size(parser->typedefs); ++i)
5251 util_htdel(parser->typedefs[i]);
5252 vec_free(parser->typedefs);
5253 vec_free(parser->_blocktypedefs);
5255 vec_free(parser->_block_ctx);
5257 vec_free(parser->labels);
5258 vec_free(parser->gotos);
5259 vec_free(parser->breaks);
5260 vec_free(parser->continues);
5262 ast_value_delete(parser->nil);
5267 bool parser_finish(const char *output)
5273 if (compile_errors) {
5274 con_out("*** there were compile errors\n");
5278 ir = ir_builder_new("gmqcc_out");
5280 con_out("failed to allocate builder\n");
5284 for (i = 0; i < vec_size(parser->fields); ++i) {
5287 if (!ast_istype(parser->fields[i], ast_value))
5289 field = (ast_value*)parser->fields[i];
5290 hasvalue = field->hasvalue;
5291 field->hasvalue = false;
5292 if (!ast_global_codegen((ast_value*)field, ir, true)) {
5293 con_out("failed to generate field %s\n", field->name);
5294 ir_builder_delete(ir);
5299 ast_expression *subtype;
5300 field->hasvalue = true;
5301 subtype = field->expression.next;
5302 ifld = ir_builder_create_field(ir, field->name, subtype->expression.vtype);
5303 if (subtype->expression.vtype == TYPE_FIELD)
5304 ifld->fieldtype = subtype->expression.next->expression.vtype;
5305 else if (subtype->expression.vtype == TYPE_FUNCTION)
5306 ifld->outtype = subtype->expression.next->expression.vtype;
5307 (void)!ir_value_set_field(field->ir_v, ifld);
5310 for (i = 0; i < vec_size(parser->globals); ++i) {
5312 if (!ast_istype(parser->globals[i], ast_value))
5314 asvalue = (ast_value*)(parser->globals[i]);
5315 if (!asvalue->uses && !asvalue->hasvalue && asvalue->expression.vtype != TYPE_FUNCTION) {
5316 retval = retval && !genwarning(ast_ctx(asvalue), WARN_UNUSED_VARIABLE,
5317 "unused global: `%s`", asvalue->name);
5319 if (!ast_global_codegen(asvalue, ir, false)) {
5320 con_out("failed to generate global %s\n", asvalue->name);
5321 ir_builder_delete(ir);
5325 for (i = 0; i < vec_size(parser->imm_float); ++i) {
5326 if (!ast_global_codegen(parser->imm_float[i], ir, false)) {
5327 con_out("failed to generate global %s\n", parser->imm_float[i]->name);
5328 ir_builder_delete(ir);
5332 for (i = 0; i < vec_size(parser->imm_string); ++i) {
5333 if (!ast_global_codegen(parser->imm_string[i], ir, false)) {
5334 con_out("failed to generate global %s\n", parser->imm_string[i]->name);
5335 ir_builder_delete(ir);
5339 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
5340 if (!ast_global_codegen(parser->imm_vector[i], ir, false)) {
5341 con_out("failed to generate global %s\n", parser->imm_vector[i]->name);
5342 ir_builder_delete(ir);
5346 for (i = 0; i < vec_size(parser->globals); ++i) {
5348 if (!ast_istype(parser->globals[i], ast_value))
5350 asvalue = (ast_value*)(parser->globals[i]);
5351 if (!(asvalue->expression.flags & AST_FLAG_INITIALIZED))
5353 if (asvalue->cvq == CV_CONST && !asvalue->hasvalue)
5354 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_CONSTANT,
5355 "uninitialized constant: `%s`",
5357 else if ((asvalue->cvq == CV_NONE || asvalue->cvq == CV_CONST) && !asvalue->hasvalue)
5358 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_GLOBAL,
5359 "uninitialized global: `%s`",
5362 if (!ast_generate_accessors(asvalue, ir)) {
5363 ir_builder_delete(ir);
5367 for (i = 0; i < vec_size(parser->fields); ++i) {
5369 asvalue = (ast_value*)(parser->fields[i]->expression.next);
5371 if (!ast_istype((ast_expression*)asvalue, ast_value))
5373 if (asvalue->expression.vtype != TYPE_ARRAY)
5375 if (!ast_generate_accessors(asvalue, ir)) {
5376 ir_builder_delete(ir);
5380 for (i = 0; i < vec_size(parser->functions); ++i) {
5381 if (!ast_function_codegen(parser->functions[i], ir)) {
5382 con_out("failed to generate function %s\n", parser->functions[i]->name);
5383 ir_builder_delete(ir);
5388 ir_builder_dump(ir, con_out);
5389 for (i = 0; i < vec_size(parser->functions); ++i) {
5390 if (!ir_function_finalize(parser->functions[i]->ir_func)) {
5391 con_out("failed to finalize function %s\n", parser->functions[i]->name);
5392 ir_builder_delete(ir);
5397 if (compile_Werrors) {
5398 con_out("*** there were warnings treated as errors\n");
5399 compile_show_werrors();
5405 ir_builder_dump(ir, con_out);
5407 generate_checksum(parser);
5409 if (!ir_builder_generate(ir, output)) {
5410 con_out("*** failed to generate output file\n");
5411 ir_builder_delete(ir);
5416 ir_builder_delete(ir);