2 * Copyright (C) 2012, 2013
6 * Permission is hereby granted, free of charge, to any person obtaining a copy of
7 * this software and associated documentation files (the "Software"), to deal in
8 * the Software without restriction, including without limitation the rights to
9 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
10 * of the Software, and to permit persons to whom the Software is furnished to do
11 * so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31 /* beginning of locals */
32 #define PARSER_HT_LOCALS 2
34 #define PARSER_HT_SIZE 128
35 #define TYPEDEF_HT_SIZE 16
37 enum parser_pot { POT_PAREN, POT_TERNARY1, POT_TERNARY2 };
42 ast_expression **globals;
43 ast_expression **fields;
44 ast_function **functions;
45 ast_value **imm_float;
46 ast_value **imm_string;
47 ast_value **imm_vector;
50 /* must be deleted first, they reference immediates and values */
51 ast_value **accessors;
53 ast_value *imm_float_zero;
54 ast_value *imm_float_one;
55 ast_value *imm_vector_zero;
57 ast_value *reserved_version;
62 ast_function *function;
64 /* All the labels the function defined...
65 * Should they be in ast_function instead?
70 const char **continues;
72 /* A list of hashtables for each scope */
78 /* same as above but for the spelling corrector */
79 correct_trie_t **correct_variables;
80 size_t ***correct_variables_score; /* vector of vector of size_t* */
82 /* not to be used directly, we use the hash table */
83 ast_expression **_locals;
85 ast_value **_typedefs;
86 size_t *_blocktypedefs;
89 /* we store the '=' operator info */
90 const oper_info *assign_op;
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.
99 ast_value *const_vec[3];
104 /* collected information */
105 size_t max_param_count;
108 static ast_expression * const intrinsic_debug_typestring = (ast_expression*)0x1;
110 static void parser_enterblock(parser_t *parser);
111 static bool parser_leaveblock(parser_t *parser);
112 static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e);
113 static void parser_addglobal(parser_t *parser, const char *name, ast_expression *e);
114 static bool parse_typedef(parser_t *parser);
115 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);
116 static ast_block* parse_block(parser_t *parser);
117 static bool parse_block_into(parser_t *parser, ast_block *block);
118 static bool parse_statement_or_block(parser_t *parser, ast_expression **out);
119 static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases);
120 static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels);
121 static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels);
122 static ast_value* parser_create_array_setter_proto(parser_t *parser, ast_value *array, const char *funcname);
123 static ast_value* parser_create_array_getter_proto(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname);
124 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
126 static void parseerror(parser_t *parser, const char *fmt, ...)
130 vcompile_error(parser->lex->tok.ctx, fmt, ap);
134 /* returns true if it counts as an error */
135 static bool GMQCC_WARN parsewarning(parser_t *parser, int warntype, const char *fmt, ...)
140 r = vcompile_warning(parser->lex->tok.ctx, warntype, fmt, ap);
145 static bool GMQCC_WARN genwarning(lex_ctx ctx, int warntype, const char *fmt, ...)
150 r = vcompile_warning(ctx, warntype, fmt, ap);
155 /**********************************************************************
156 * some maths used for constant folding
159 vector vec3_add(vector a, vector b)
168 vector vec3_sub(vector a, vector b)
177 qcfloat vec3_mulvv(vector a, vector b)
179 return (a.x * b.x + a.y * b.y + a.z * b.z);
182 vector vec3_mulvf(vector a, float b)
191 /**********************************************************************
195 bool parser_next(parser_t *parser)
197 /* lex_do kills the previous token */
198 parser->tok = lex_do(parser->lex);
199 if (parser->tok == TOKEN_EOF)
201 if (parser->tok >= TOKEN_ERROR) {
202 parseerror(parser, "lex error");
208 #define parser_tokval(p) ((p)->lex->tok.value)
209 #define parser_token(p) (&((p)->lex->tok))
210 #define parser_ctx(p) ((p)->lex->tok.ctx)
212 static ast_value* parser_const_float(parser_t *parser, double d)
217 for (i = 0; i < vec_size(parser->imm_float); ++i) {
218 const double compare = parser->imm_float[i]->constval.vfloat;
219 if (memcmp((const void*)&compare, (const void *)&d, sizeof(double)) == 0)
220 return parser->imm_float[i];
223 ctx = parser_ctx(parser);
225 memset(&ctx, 0, sizeof(ctx));
227 out = ast_value_new(ctx, "#IMMEDIATE", TYPE_FLOAT);
229 out->hasvalue = true;
230 out->constval.vfloat = d;
231 vec_push(parser->imm_float, out);
235 static ast_value* parser_const_float_0(parser_t *parser)
237 if (!parser->imm_float_zero)
238 parser->imm_float_zero = parser_const_float(parser, 0);
239 return parser->imm_float_zero;
242 static ast_value* parser_const_float_1(parser_t *parser)
244 if (!parser->imm_float_one)
245 parser->imm_float_one = parser_const_float(parser, 1);
246 return parser->imm_float_one;
249 static char *parser_strdup(const char *str)
252 /* actually dup empty strings */
253 char *out = (char*)mem_a(1);
257 return util_strdup(str);
260 static ast_value* parser_const_string(parser_t *parser, const char *str, bool dotranslate)
264 for (i = 0; i < vec_size(parser->imm_string); ++i) {
265 if (!strcmp(parser->imm_string[i]->constval.vstring, str))
266 return parser->imm_string[i];
270 snprintf(name, sizeof(name), "dotranslate_%lu", (unsigned long)(parser->translated++));
271 out = ast_value_new(parser_ctx(parser), name, TYPE_STRING);
273 out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_STRING);
275 out->hasvalue = true;
276 out->constval.vstring = parser_strdup(str);
277 vec_push(parser->imm_string, out);
281 static ast_value* parser_const_vector(parser_t *parser, vector v)
285 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
286 if (!memcmp(&parser->imm_vector[i]->constval.vvec, &v, sizeof(v)))
287 return parser->imm_vector[i];
289 out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_VECTOR);
291 out->hasvalue = true;
292 out->constval.vvec = v;
293 vec_push(parser->imm_vector, out);
297 static ast_value* parser_const_vector_f(parser_t *parser, float x, float y, float z)
303 return parser_const_vector(parser, v);
306 static ast_value* parser_const_vector_0(parser_t *parser)
308 if (!parser->imm_vector_zero)
309 parser->imm_vector_zero = parser_const_vector_f(parser, 0, 0, 0);
310 return parser->imm_vector_zero;
313 static ast_expression* parser_find_field(parser_t *parser, const char *name)
315 return ( ast_expression*)util_htget(parser->htfields, name);
318 static ast_expression* parser_find_label(parser_t *parser, const char *name)
321 for(i = 0; i < vec_size(parser->labels); i++)
322 if (!strcmp(parser->labels[i]->name, name))
323 return (ast_expression*)parser->labels[i];
327 static ast_expression* parser_find_global(parser_t *parser, const char *name)
329 return (ast_expression*)util_htget(parser->htglobals, name);
332 static ast_expression* parser_find_param(parser_t *parser, const char *name)
336 if (!parser->function)
338 fun = parser->function->vtype;
339 for (i = 0; i < vec_size(fun->expression.params); ++i) {
340 if (!strcmp(fun->expression.params[i]->name, name))
341 return (ast_expression*)(fun->expression.params[i]);
346 static ast_expression* parser_find_local(parser_t *parser, const char *name, size_t upto, bool *isparam)
351 hash = util_hthash(parser->htglobals, name);
354 for (i = vec_size(parser->variables); i > upto;) {
356 if ( (e = (ast_expression*)util_htgeth(parser->variables[i], name, hash)) )
360 return parser_find_param(parser, name);
363 static ast_expression* parser_find_var(parser_t *parser, const char *name)
367 v = parser_find_local(parser, name, 0, &dummy);
368 if (!v) v = parser_find_global(parser, name);
372 static ast_value* parser_find_typedef(parser_t *parser, const char *name, size_t upto)
376 hash = util_hthash(parser->typedefs[0], name);
378 for (i = vec_size(parser->typedefs); i > upto;) {
380 if ( (e = (ast_value*)util_htgeth(parser->typedefs[i], name, hash)) )
388 size_t etype; /* 0 = expression, others are operators */
392 ast_block *block; /* for commas and function calls */
401 #define SY_PAREN_EXPR '('
402 #define SY_PAREN_FUNC 'f'
403 #define SY_PAREN_INDEX '['
404 #define SY_PAREN_TERNARY '?'
406 static sy_elem syexp(lex_ctx ctx, ast_expression *v) {
417 static sy_elem syblock(lex_ctx ctx, ast_block *v) {
421 e.out = (ast_expression*)v;
428 static sy_elem syop(lex_ctx ctx, const oper_info *op) {
430 e.etype = 1 + (op - operators);
439 static sy_elem syparen(lex_ctx ctx, int p, size_t off) {
451 # define DEBUGSHUNTDO(x) x
453 # define DEBUGSHUNTDO(x)
456 /* With regular precedence rules, ent.foo[n] is the same as (ent.foo)[n],
457 * so we need to rotate it to become ent.(foo[n]).
459 static bool rotate_entfield_array_index_nodes(ast_expression **out)
461 ast_array_index *index;
462 ast_entfield *entfield;
466 ast_expression *entity;
468 lex_ctx ctx = ast_ctx(*out);
470 if (!ast_istype(*out, ast_array_index))
472 index = (ast_array_index*)*out;
474 if (!ast_istype(index->array, ast_entfield))
476 entfield = (ast_entfield*)index->array;
478 if (!ast_istype(entfield->field, ast_value))
480 field = (ast_value*)entfield->field;
483 entity = entfield->entity;
487 index = ast_array_index_new(ctx, (ast_expression*)field, sub);
488 entfield = ast_entfield_new(ctx, entity, (ast_expression*)index);
489 *out = (ast_expression*)entfield;
494 static bool immediate_is_true(lex_ctx ctx, ast_value *v)
496 switch (v->expression.vtype) {
498 return !!v->constval.vfloat;
500 return !!v->constval.vint;
502 if (OPTS_FLAG(CORRECT_LOGIC))
503 return v->constval.vvec.x &&
504 v->constval.vvec.y &&
507 return !!(v->constval.vvec.x);
509 if (!v->constval.vstring)
511 if (v->constval.vstring && OPTS_FLAG(TRUE_EMPTY_STRINGS))
513 return !!v->constval.vstring[0];
515 compile_error(ctx, "internal error: immediate_is_true on invalid type");
516 return !!v->constval.vfunc;
520 static bool parser_sy_apply_operator(parser_t *parser, shunt *sy)
524 ast_expression *out = NULL;
525 ast_expression *exprs[3];
526 ast_block *blocks[3];
527 ast_value *asvalue[3];
528 ast_binstore *asbinstore;
529 size_t i, assignop, addop, subop;
530 qcint generated_op = 0;
535 if (!vec_size(sy->ops)) {
536 parseerror(parser, "internal error: missing operator");
540 if (vec_last(sy->ops).paren) {
541 parseerror(parser, "unmatched parenthesis");
545 op = &operators[vec_last(sy->ops).etype - 1];
546 ctx = vec_last(sy->ops).ctx;
548 DEBUGSHUNTDO(con_out("apply %s\n", op->op));
550 if (vec_size(sy->out) < op->operands) {
551 compile_error(ctx, "internal error: not enough operands: %i (operator %s (%i))", vec_size(sy->out),
552 op->op, (int)op->id);
556 vec_shrinkby(sy->ops, 1);
558 /* op(:?) has no input and no output */
562 vec_shrinkby(sy->out, op->operands);
563 for (i = 0; i < op->operands; ++i) {
564 exprs[i] = sy->out[vec_size(sy->out)+i].out;
565 blocks[i] = sy->out[vec_size(sy->out)+i].block;
566 asvalue[i] = (ast_value*)exprs[i];
568 if (exprs[i]->expression.vtype == TYPE_NOEXPR &&
569 !(i != 0 && op->id == opid2('?',':')) &&
570 !(i == 1 && op->id == opid1('.')))
572 if (ast_istype(exprs[i], ast_label))
573 compile_error(ast_ctx(exprs[i]), "expected expression, got an unknown identifier");
575 compile_error(ast_ctx(exprs[i]), "not an expression");
576 (void)!compile_warning(ast_ctx(exprs[i]), WARN_DEBUG, "expression %u\n", (unsigned int)i);
580 if (blocks[0] && !vec_size(blocks[0]->exprs) && op->id != opid1(',')) {
581 compile_error(ctx, "internal error: operator cannot be applied on empty blocks");
585 #define NotSameType(T) \
586 (exprs[0]->expression.vtype != exprs[1]->expression.vtype || \
587 exprs[0]->expression.vtype != T)
588 #define CanConstFold1(A) \
589 (ast_istype((A), ast_value) && ((ast_value*)(A))->hasvalue && (((ast_value*)(A))->cvq == CV_CONST) &&\
590 (A)->expression.vtype != TYPE_FUNCTION)
591 #define CanConstFold(A, B) \
592 (CanConstFold1(A) && CanConstFold1(B))
593 #define ConstV(i) (asvalue[(i)]->constval.vvec)
594 #define ConstF(i) (asvalue[(i)]->constval.vfloat)
595 #define ConstS(i) (asvalue[(i)]->constval.vstring)
599 compile_error(ctx, "internal error: unhandled operator: %s (%i)", op->op, (int)op->id);
603 if (exprs[0]->expression.vtype == TYPE_VECTOR &&
604 exprs[1]->expression.vtype == TYPE_NOEXPR)
606 if (exprs[1] == (ast_expression*)parser->const_vec[0])
607 out = (ast_expression*)ast_member_new(ctx, exprs[0], 0, NULL);
608 else if (exprs[1] == (ast_expression*)parser->const_vec[1])
609 out = (ast_expression*)ast_member_new(ctx, exprs[0], 1, NULL);
610 else if (exprs[1] == (ast_expression*)parser->const_vec[2])
611 out = (ast_expression*)ast_member_new(ctx, exprs[0], 2, NULL);
613 compile_error(ctx, "access to invalid vector component");
617 else if (exprs[0]->expression.vtype == TYPE_ENTITY) {
618 if (exprs[1]->expression.vtype != TYPE_FIELD) {
619 compile_error(ast_ctx(exprs[1]), "type error: right hand of member-operand should be an entity-field");
622 out = (ast_expression*)ast_entfield_new(ctx, exprs[0], exprs[1]);
624 else if (exprs[0]->expression.vtype == TYPE_VECTOR) {
625 compile_error(ast_ctx(exprs[1]), "vectors cannot be accessed this way");
629 compile_error(ast_ctx(exprs[1]), "type error: member-of operator on something that is not an entity or vector");
635 if (exprs[0]->expression.vtype != TYPE_ARRAY &&
636 !(exprs[0]->expression.vtype == TYPE_FIELD &&
637 exprs[0]->expression.next->expression.vtype == TYPE_ARRAY))
639 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
640 compile_error(ast_ctx(exprs[0]), "cannot index value of type %s", ty1);
643 if (exprs[1]->expression.vtype != TYPE_FLOAT) {
644 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
645 compile_error(ast_ctx(exprs[1]), "index must be of type float, not %s", ty1);
648 out = (ast_expression*)ast_array_index_new(ctx, exprs[0], exprs[1]);
649 if (rotate_entfield_array_index_nodes(&out))
652 /* This is not broken in fteqcc anymore */
653 if (opts.standard != COMPILER_GMQCC) {
654 /* this error doesn't need to make us bail out */
655 (void)!parsewarning(parser, WARN_EXTENSIONS,
656 "accessing array-field members of an entity without parenthesis\n"
657 " -> this is an extension from -std=gmqcc");
665 if (!ast_block_add_expr(blocks[0], exprs[1]))
668 blocks[0] = ast_block_new(ctx);
669 if (!ast_block_add_expr(blocks[0], exprs[0]) ||
670 !ast_block_add_expr(blocks[0], exprs[1]))
675 if (!ast_block_set_type(blocks[0], exprs[1]))
678 vec_push(sy->out, syblock(ctx, blocks[0]));
685 switch (exprs[0]->expression.vtype) {
687 if (CanConstFold1(exprs[0]))
688 out = (ast_expression*)parser_const_float(parser, -ConstF(0));
690 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F,
691 (ast_expression*)parser_const_float_0(parser),
695 if (CanConstFold1(exprs[0]))
696 out = (ast_expression*)parser_const_vector_f(parser,
697 -ConstV(0).x, -ConstV(0).y, -ConstV(0).z);
699 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V,
700 (ast_expression*)parser_const_vector_0(parser),
704 compile_error(ctx, "invalid types used in expression: cannot negate type %s",
705 type_name[exprs[0]->expression.vtype]);
711 switch (exprs[0]->expression.vtype) {
713 if (CanConstFold1(exprs[0]))
714 out = (ast_expression*)parser_const_float(parser, !ConstF(0));
716 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
719 if (CanConstFold1(exprs[0]))
720 out = (ast_expression*)parser_const_float(parser,
721 (!ConstV(0).x && !ConstV(0).y && !ConstV(0).z));
723 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[0]);
726 if (CanConstFold1(exprs[0])) {
727 if (OPTS_FLAG(TRUE_EMPTY_STRINGS))
728 out = (ast_expression*)parser_const_float(parser, !ConstS(0));
730 out = (ast_expression*)parser_const_float(parser, !ConstS(0) || !*ConstS(0));
732 if (OPTS_FLAG(TRUE_EMPTY_STRINGS))
733 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
735 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[0]);
738 /* we don't constant-fold NOT for these types */
740 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_ENT, exprs[0]);
743 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_FNC, exprs[0]);
746 compile_error(ctx, "invalid types used in expression: cannot logically negate type %s",
747 type_name[exprs[0]->expression.vtype]);
753 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
754 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
756 compile_error(ctx, "invalid types used in expression: cannot add type %s and %s",
757 type_name[exprs[0]->expression.vtype],
758 type_name[exprs[1]->expression.vtype]);
761 switch (exprs[0]->expression.vtype) {
763 if (CanConstFold(exprs[0], exprs[1]))
765 out = (ast_expression*)parser_const_float(parser, ConstF(0) + ConstF(1));
768 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F, exprs[0], exprs[1]);
771 if (CanConstFold(exprs[0], exprs[1]))
772 out = (ast_expression*)parser_const_vector(parser, vec3_add(ConstV(0), ConstV(1)));
774 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_V, exprs[0], exprs[1]);
777 compile_error(ctx, "invalid types used in expression: cannot add type %s and %s",
778 type_name[exprs[0]->expression.vtype],
779 type_name[exprs[1]->expression.vtype]);
784 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
785 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
787 compile_error(ctx, "invalid types used in expression: cannot subtract type %s from %s",
788 type_name[exprs[1]->expression.vtype],
789 type_name[exprs[0]->expression.vtype]);
792 switch (exprs[0]->expression.vtype) {
794 if (CanConstFold(exprs[0], exprs[1]))
795 out = (ast_expression*)parser_const_float(parser, ConstF(0) - ConstF(1));
797 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F, exprs[0], exprs[1]);
800 if (CanConstFold(exprs[0], exprs[1]))
801 out = (ast_expression*)parser_const_vector(parser, vec3_sub(ConstV(0), ConstV(1)));
803 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V, exprs[0], exprs[1]);
806 compile_error(ctx, "invalid types used in expression: cannot subtract type %s from %s",
807 type_name[exprs[1]->expression.vtype],
808 type_name[exprs[0]->expression.vtype]);
813 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype &&
814 !(exprs[0]->expression.vtype == TYPE_VECTOR &&
815 exprs[1]->expression.vtype == TYPE_FLOAT) &&
816 !(exprs[1]->expression.vtype == TYPE_VECTOR &&
817 exprs[0]->expression.vtype == TYPE_FLOAT)
820 compile_error(ctx, "invalid types used in expression: cannot multiply types %s and %s",
821 type_name[exprs[1]->expression.vtype],
822 type_name[exprs[0]->expression.vtype]);
825 switch (exprs[0]->expression.vtype) {
827 if (exprs[1]->expression.vtype == TYPE_VECTOR)
829 if (CanConstFold(exprs[0], exprs[1]))
830 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(1), ConstF(0)));
832 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_FV, exprs[0], exprs[1]);
836 if (CanConstFold(exprs[0], exprs[1]))
837 out = (ast_expression*)parser_const_float(parser, ConstF(0) * ConstF(1));
839 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, exprs[0], exprs[1]);
843 if (exprs[1]->expression.vtype == TYPE_FLOAT)
845 if (CanConstFold(exprs[0], exprs[1]))
846 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(0), ConstF(1)));
848 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_VF, exprs[0], exprs[1]);
852 if (CanConstFold(exprs[0], exprs[1]))
853 out = (ast_expression*)parser_const_float(parser, vec3_mulvv(ConstV(0), ConstV(1)));
854 else if (OPTS_OPTIMIZATION(OPTIM_VECTOR_COMPONENTS) && CanConstFold1(exprs[0])) {
855 vector vec = ConstV(0);
856 if (!vec.y && !vec.z) { /* 'n 0 0' * v */
857 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
858 out = (ast_expression*)ast_member_new(ctx, exprs[1], 0, NULL);
859 out->expression.node.keep = false;
860 ((ast_member*)out)->rvalue = true;
862 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.x), out);
864 else if (!vec.x && !vec.z) { /* '0 n 0' * v */
865 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
866 out = (ast_expression*)ast_member_new(ctx, exprs[1], 1, NULL);
867 out->expression.node.keep = false;
868 ((ast_member*)out)->rvalue = true;
870 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.y), out);
872 else if (!vec.x && !vec.y) { /* '0 n 0' * v */
873 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
874 out = (ast_expression*)ast_member_new(ctx, exprs[1], 2, NULL);
875 out->expression.node.keep = false;
876 ((ast_member*)out)->rvalue = true;
878 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.z), out);
881 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
883 else if (OPTS_OPTIMIZATION(OPTIM_VECTOR_COMPONENTS) && CanConstFold1(exprs[1])) {
884 vector vec = ConstV(1);
885 if (!vec.y && !vec.z) { /* v * 'n 0 0' */
886 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
887 out = (ast_expression*)ast_member_new(ctx, exprs[0], 0, NULL);
888 out->expression.node.keep = false;
889 ((ast_member*)out)->rvalue = true;
891 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.x));
893 else if (!vec.x && !vec.z) { /* v * '0 n 0' */
894 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
895 out = (ast_expression*)ast_member_new(ctx, exprs[0], 1, NULL);
896 out->expression.node.keep = false;
897 ((ast_member*)out)->rvalue = true;
899 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.y));
901 else if (!vec.x && !vec.y) { /* v * '0 n 0' */
902 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
903 out = (ast_expression*)ast_member_new(ctx, exprs[0], 2, NULL);
904 out->expression.node.keep = false;
905 ((ast_member*)out)->rvalue = true;
907 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.z));
910 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
913 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
917 compile_error(ctx, "invalid types used in expression: cannot multiply types %s and %s",
918 type_name[exprs[1]->expression.vtype],
919 type_name[exprs[0]->expression.vtype]);
924 if (exprs[1]->expression.vtype != TYPE_FLOAT) {
925 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
926 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
927 compile_error(ctx, "invalid types used in expression: cannot divide tyeps %s and %s", ty1, ty2);
930 if (exprs[0]->expression.vtype == TYPE_FLOAT) {
931 if (CanConstFold(exprs[0], exprs[1]))
932 out = (ast_expression*)parser_const_float(parser, ConstF(0) / ConstF(1));
934 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F, exprs[0], exprs[1]);
936 else if (exprs[0]->expression.vtype == TYPE_VECTOR) {
937 if (CanConstFold(exprs[0], exprs[1]))
938 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(0), 1.0/ConstF(1)));
940 if (CanConstFold1(exprs[1])) {
941 out = (ast_expression*)parser_const_float(parser, 1.0 / ConstF(1));
943 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F,
944 (ast_expression*)parser_const_float_1(parser),
948 compile_error(ctx, "internal error: failed to generate division");
951 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_VF, exprs[0], out);
956 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
957 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
958 compile_error(ctx, "invalid types used in expression: cannot divide tyeps %s and %s", ty1, ty2);
964 compile_error(ctx, "qc does not have a modulo operator");
968 if (NotSameType(TYPE_FLOAT)) {
969 compile_error(ctx, "invalid types used in expression: cannot perform bit operations between types %s and %s",
970 type_name[exprs[0]->expression.vtype],
971 type_name[exprs[1]->expression.vtype]);
974 if (CanConstFold(exprs[0], exprs[1]))
975 out = (ast_expression*)parser_const_float(parser,
976 (op->id == opid1('|') ? (float)( ((qcint)ConstF(0)) | ((qcint)ConstF(1)) ) :
977 (float)( ((qcint)ConstF(0)) & ((qcint)ConstF(1)) ) ));
979 out = (ast_expression*)ast_binary_new(ctx,
980 (op->id == opid1('|') ? INSTR_BITOR : INSTR_BITAND),
984 compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-xor via ^");
989 if (CanConstFold(exprs[0], exprs[1]) && ! NotSameType(TYPE_FLOAT)) {
990 if (op->id == opid2('<','<'))
991 out = (ast_expression*)parser_const_float(parser, (double)((int)(ConstF(0)) << (int)(ConstF(1))));
993 out = (ast_expression*)parser_const_float(parser, (double)((int)(ConstF(0)) >> (int)(ConstF(1))));
996 case opid3('<','<','='):
997 case opid3('>','>','='):
998 compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-shifts");
1001 case opid2('|','|'):
1002 generated_op += 1; /* INSTR_OR */
1003 case opid2('&','&'):
1004 generated_op += INSTR_AND;
1005 if (CanConstFold(exprs[0], exprs[1]))
1007 if (OPTS_FLAG(PERL_LOGIC)) {
1008 if (immediate_is_true(ctx, asvalue[0]))
1012 out = (ast_expression*)parser_const_float(parser,
1013 ( (generated_op == INSTR_OR)
1014 ? (immediate_is_true(ctx, asvalue[0]) || immediate_is_true(ctx, asvalue[1]))
1015 : (immediate_is_true(ctx, asvalue[0]) && immediate_is_true(ctx, asvalue[1])) )
1020 if (OPTS_FLAG(PERL_LOGIC) && !ast_compare_type(exprs[0], exprs[1])) {
1021 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1022 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1023 compile_error(ctx, "invalid types for logical operation with -fperl-logic: %s and %s", ty1, ty2);
1026 for (i = 0; i < 2; ++i) {
1027 if (OPTS_FLAG(CORRECT_LOGIC) && exprs[i]->expression.vtype == TYPE_VECTOR) {
1028 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[i]);
1030 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
1032 exprs[i] = out; out = NULL;
1033 if (OPTS_FLAG(PERL_LOGIC)) {
1034 /* here we want to keep the right expressions' type */
1038 else if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && exprs[i]->expression.vtype == TYPE_STRING) {
1039 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[i]);
1041 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
1043 exprs[i] = out; out = NULL;
1044 if (OPTS_FLAG(PERL_LOGIC)) {
1045 /* here we want to keep the right expressions' type */
1050 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
1054 case opid2('?',':'):
1055 if (vec_last(parser->pot) != POT_TERNARY2) {
1056 compile_error(ctx, "mismatched parenthesis/ternary");
1059 vec_pop(parser->pot);
1060 if (!ast_compare_type(exprs[1], exprs[2])) {
1061 ast_type_to_string(exprs[1], ty1, sizeof(ty1));
1062 ast_type_to_string(exprs[2], ty2, sizeof(ty2));
1063 compile_error(ctx, "operands of ternary expression must have the same type, got %s and %s", ty1, ty2);
1066 if (CanConstFold1(exprs[0]))
1067 out = (immediate_is_true(ctx, asvalue[0]) ? exprs[1] : exprs[2]);
1069 out = (ast_expression*)ast_ternary_new(ctx, exprs[0], exprs[1], exprs[2]);
1073 generated_op += 1; /* INSTR_GT */
1075 generated_op += 1; /* INSTR_LT */
1076 case opid2('>', '='):
1077 generated_op += 1; /* INSTR_GE */
1078 case opid2('<', '='):
1079 generated_op += INSTR_LE;
1080 if (NotSameType(TYPE_FLOAT)) {
1081 compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
1082 type_name[exprs[0]->expression.vtype],
1083 type_name[exprs[1]->expression.vtype]);
1086 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
1088 case opid2('!', '='):
1089 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) {
1090 compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
1091 type_name[exprs[0]->expression.vtype],
1092 type_name[exprs[1]->expression.vtype]);
1095 out = (ast_expression*)ast_binary_new(ctx, type_ne_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]);
1097 case opid2('=', '='):
1098 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) {
1099 compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s",
1100 type_name[exprs[0]->expression.vtype],
1101 type_name[exprs[1]->expression.vtype]);
1104 out = (ast_expression*)ast_binary_new(ctx, type_eq_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]);
1108 if (ast_istype(exprs[0], ast_entfield)) {
1109 ast_expression *field = ((ast_entfield*)exprs[0])->field;
1110 if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) &&
1111 exprs[0]->expression.vtype == TYPE_FIELD &&
1112 exprs[0]->expression.next->expression.vtype == TYPE_VECTOR)
1114 assignop = type_storep_instr[TYPE_VECTOR];
1117 assignop = type_storep_instr[exprs[0]->expression.vtype];
1118 if (assignop == AINSTR_END || !ast_compare_type(field->expression.next, exprs[1]))
1120 ast_type_to_string(field->expression.next, ty1, sizeof(ty1));
1121 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1122 if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
1123 field->expression.next->expression.vtype == TYPE_FUNCTION &&
1124 exprs[1]->expression.vtype == TYPE_FUNCTION)
1126 (void)!compile_warning(ctx, WARN_ASSIGN_FUNCTION_TYPES,
1127 "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1130 compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1135 if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) &&
1136 exprs[0]->expression.vtype == TYPE_FIELD &&
1137 exprs[0]->expression.next->expression.vtype == TYPE_VECTOR)
1139 assignop = type_store_instr[TYPE_VECTOR];
1142 assignop = type_store_instr[exprs[0]->expression.vtype];
1145 if (assignop == AINSTR_END) {
1146 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1147 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1148 compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1150 else if (!ast_compare_type(exprs[0], exprs[1]))
1152 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1153 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1154 if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
1155 exprs[0]->expression.vtype == TYPE_FUNCTION &&
1156 exprs[1]->expression.vtype == TYPE_FUNCTION)
1158 (void)!compile_warning(ctx, WARN_ASSIGN_FUNCTION_TYPES,
1159 "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1162 compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1165 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1166 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1168 out = (ast_expression*)ast_store_new(ctx, assignop, exprs[0], exprs[1]);
1170 case opid3('+','+','P'):
1171 case opid3('-','-','P'):
1173 if (exprs[0]->expression.vtype != TYPE_FLOAT) {
1174 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1175 compile_error(ast_ctx(exprs[0]), "invalid type for prefix increment: %s", ty1);
1178 if (op->id == opid3('+','+','P'))
1179 addop = INSTR_ADD_F;
1181 addop = INSTR_SUB_F;
1182 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1183 compile_error(ast_ctx(exprs[0]), "assignment to constant `%s`", asvalue[0]->name);
1185 if (ast_istype(exprs[0], ast_entfield)) {
1186 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
1188 (ast_expression*)parser_const_float_1(parser));
1190 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
1192 (ast_expression*)parser_const_float_1(parser));
1195 case opid3('S','+','+'):
1196 case opid3('S','-','-'):
1198 if (exprs[0]->expression.vtype != TYPE_FLOAT) {
1199 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1200 compile_error(ast_ctx(exprs[0]), "invalid type for suffix increment: %s", ty1);
1203 if (op->id == opid3('S','+','+')) {
1204 addop = INSTR_ADD_F;
1205 subop = INSTR_SUB_F;
1207 addop = INSTR_SUB_F;
1208 subop = INSTR_ADD_F;
1210 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1211 compile_error(ast_ctx(exprs[0]), "assignment to constant `%s`", asvalue[0]->name);
1213 if (ast_istype(exprs[0], ast_entfield)) {
1214 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
1216 (ast_expression*)parser_const_float_1(parser));
1218 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
1220 (ast_expression*)parser_const_float_1(parser));
1224 out = (ast_expression*)ast_binary_new(ctx, subop,
1226 (ast_expression*)parser_const_float_1(parser));
1228 case opid2('+','='):
1229 case opid2('-','='):
1230 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
1231 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
1233 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1234 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1235 compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
1239 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1240 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1242 if (ast_istype(exprs[0], ast_entfield))
1243 assignop = type_storep_instr[exprs[0]->expression.vtype];
1245 assignop = type_store_instr[exprs[0]->expression.vtype];
1246 switch (exprs[0]->expression.vtype) {
1248 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1249 (op->id == opid2('+','=') ? INSTR_ADD_F : INSTR_SUB_F),
1250 exprs[0], exprs[1]);
1253 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1254 (op->id == opid2('+','=') ? INSTR_ADD_V : INSTR_SUB_V),
1255 exprs[0], exprs[1]);
1258 compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
1259 type_name[exprs[0]->expression.vtype],
1260 type_name[exprs[1]->expression.vtype]);
1264 case opid2('*','='):
1265 case opid2('/','='):
1266 if (exprs[1]->expression.vtype != TYPE_FLOAT ||
1267 !(exprs[0]->expression.vtype == TYPE_FLOAT ||
1268 exprs[0]->expression.vtype == TYPE_VECTOR))
1270 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1271 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1272 compile_error(ctx, "invalid types used in expression: %s and %s",
1276 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1277 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1279 if (ast_istype(exprs[0], ast_entfield))
1280 assignop = type_storep_instr[exprs[0]->expression.vtype];
1282 assignop = type_store_instr[exprs[0]->expression.vtype];
1283 switch (exprs[0]->expression.vtype) {
1285 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1286 (op->id == opid2('*','=') ? INSTR_MUL_F : INSTR_DIV_F),
1287 exprs[0], exprs[1]);
1290 if (op->id == opid2('*','=')) {
1291 out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
1292 exprs[0], exprs[1]);
1294 /* there's no DIV_VF */
1295 if (CanConstFold1(exprs[1])) {
1296 out = (ast_expression*)parser_const_float(parser, 1.0 / ConstF(1));
1298 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F,
1299 (ast_expression*)parser_const_float_1(parser),
1303 compile_error(ctx, "internal error: failed to generate division");
1306 out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
1311 compile_error(ctx, "invalid types used in expression: cannot add or subtract type %s and %s",
1312 type_name[exprs[0]->expression.vtype],
1313 type_name[exprs[1]->expression.vtype]);
1317 case opid2('&','='):
1318 case opid2('|','='):
1319 if (NotSameType(TYPE_FLOAT)) {
1320 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1321 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1322 compile_error(ctx, "invalid types used in expression: %s and %s",
1326 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1327 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1329 if (ast_istype(exprs[0], ast_entfield))
1330 assignop = type_storep_instr[exprs[0]->expression.vtype];
1332 assignop = type_store_instr[exprs[0]->expression.vtype];
1333 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1334 (op->id == opid2('&','=') ? INSTR_BITAND : INSTR_BITOR),
1335 exprs[0], exprs[1]);
1337 case opid3('&','~','='):
1338 /* This is like: a &= ~(b);
1339 * But QC has no bitwise-not, so we implement it as
1342 if (NotSameType(TYPE_FLOAT)) {
1343 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1344 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1345 compile_error(ctx, "invalid types used in expression: %s and %s",
1349 if (ast_istype(exprs[0], ast_entfield))
1350 assignop = type_storep_instr[exprs[0]->expression.vtype];
1352 assignop = type_store_instr[exprs[0]->expression.vtype];
1353 out = (ast_expression*)ast_binary_new(ctx, INSTR_BITAND, exprs[0], exprs[1]);
1356 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1357 compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name);
1359 asbinstore = ast_binstore_new(ctx, assignop, INSTR_SUB_F, exprs[0], out);
1360 asbinstore->keep_dest = true;
1361 out = (ast_expression*)asbinstore;
1367 compile_error(ctx, "failed to apply operand %s", op->op);
1371 DEBUGSHUNTDO(con_out("applied %s\n", op->op));
1372 vec_push(sy->out, syexp(ctx, out));
1376 static bool parser_close_call(parser_t *parser, shunt *sy)
1378 /* was a function call */
1379 ast_expression *fun;
1380 ast_value *funval = NULL;
1386 vec_shrinkby(sy->ops, 1);
1387 fid = sy->ops[vec_size(sy->ops)].off;
1389 /* out[fid] is the function
1390 * everything above is parameters...
1391 * 0 params = nothing
1392 * 1 params = ast_expression
1396 if (vec_size(sy->out) < 1 || vec_size(sy->out) <= fid) {
1397 parseerror(parser, "internal error: function call needs function and parameter list...");
1401 fun = sy->out[fid].out;
1403 if (fun == intrinsic_debug_typestring) {
1405 if (fid+2 != vec_size(sy->out) ||
1406 vec_last(sy->out).block)
1408 parseerror(parser, "intrinsic __builtin_debug_typestring requires exactly 1 parameter");
1411 ast_type_to_string(vec_last(sy->out).out, ty, sizeof(ty));
1412 ast_unref(vec_last(sy->out).out);
1413 sy->out[fid] = syexp(ast_ctx(vec_last(sy->out).out),
1414 (ast_expression*)parser_const_string(parser, ty, false));
1415 vec_shrinkby(sy->out, 1);
1419 call = ast_call_new(sy->ops[vec_size(sy->ops)].ctx, fun);
1423 if (fid+1 == vec_size(sy->out)) {
1426 } else if (fid+2 == vec_size(sy->out)) {
1428 vec_shrinkby(sy->out, 1);
1429 params = sy->out[vec_size(sy->out)].block;
1433 vec_push(call->params, sy->out[vec_size(sy->out)].out);
1435 paramcount = vec_size(params->exprs);
1436 call->params = params->exprs;
1437 params->exprs = NULL;
1440 if (parser->max_param_count < paramcount)
1441 parser->max_param_count = paramcount;
1442 (void)!ast_call_check_types(call);
1444 parseerror(parser, "invalid function call");
1448 if (ast_istype(fun, ast_value)) {
1449 funval = (ast_value*)fun;
1450 if ((fun->expression.flags & AST_FLAG_VARIADIC) &&
1451 !(/*funval->cvq == CV_CONST && */ funval->hasvalue && funval->constval.vfunc->builtin))
1453 call->va_count = (ast_expression*)parser_const_float(parser, (double)paramcount);
1457 /* overwrite fid, the function, with a call */
1458 sy->out[fid] = syexp(call->expression.node.context, (ast_expression*)call);
1460 if (fun->expression.vtype != TYPE_FUNCTION) {
1461 parseerror(parser, "not a function (%s)", type_name[fun->expression.vtype]);
1465 if (!fun->expression.next) {
1466 parseerror(parser, "could not determine function return type");
1469 ast_value *fval = (ast_istype(fun, ast_value) ? ((ast_value*)fun) : NULL);
1471 if (fun->expression.flags & AST_FLAG_DEPRECATED) {
1473 return !parsewarning(parser, WARN_DEPRECATED,
1474 "call to function (which is marked deprecated)\n",
1475 "-> it has been declared here: %s:%i",
1476 ast_ctx(fun).file, ast_ctx(fun).line);
1479 return !parsewarning(parser, WARN_DEPRECATED,
1480 "call to `%s` (which is marked deprecated)\n"
1481 "-> `%s` declared here: %s:%i",
1482 fval->name, fval->name, ast_ctx(fun).file, ast_ctx(fun).line);
1484 return !parsewarning(parser, WARN_DEPRECATED,
1485 "call to `%s` (deprecated: %s)\n"
1486 "-> `%s` declared here: %s:%i",
1487 fval->name, fval->desc, fval->name, ast_ctx(fun).file,
1491 if (vec_size(fun->expression.params) != paramcount &&
1492 !((fun->expression.flags & AST_FLAG_VARIADIC) &&
1493 vec_size(fun->expression.params) < paramcount))
1495 const char *fewmany = (vec_size(fun->expression.params) > paramcount) ? "few" : "many";
1497 return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT,
1498 "too %s parameters for call to %s: expected %i, got %i\n"
1499 " -> `%s` has been declared here: %s:%i",
1500 fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount,
1501 fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
1503 return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT,
1504 "too %s parameters for function call: expected %i, got %i\n"
1505 " -> it has been declared here: %s:%i",
1506 fewmany, (int)vec_size(fun->expression.params), (int)paramcount,
1507 ast_ctx(fun).file, (int)ast_ctx(fun).line);
1514 static bool parser_close_paren(parser_t *parser, shunt *sy, bool functions_only)
1516 if (!vec_size(sy->ops)) {
1517 parseerror(parser, "unmatched closing paren");
1520 /* this would for bit a + (x) because there are no operators inside (x)
1521 if (sy->ops[vec_size(sy->ops)-1].paren == 1) {
1522 parseerror(parser, "empty parenthesis expression");
1526 while (vec_size(sy->ops)) {
1527 if (vec_last(sy->ops).paren == SY_PAREN_FUNC) {
1528 if (!parser_close_call(parser, sy))
1532 if (vec_last(sy->ops).paren == SY_PAREN_EXPR) {
1533 if (!vec_size(sy->out)) {
1534 compile_error(vec_last(sy->ops).ctx, "empty paren expression");
1535 vec_shrinkby(sy->ops, 1);
1538 vec_shrinkby(sy->ops, 1);
1539 return !functions_only;
1541 if (vec_last(sy->ops).paren == SY_PAREN_INDEX) {
1544 /* pop off the parenthesis */
1545 vec_shrinkby(sy->ops, 1);
1546 /* then apply the index operator */
1547 if (!parser_sy_apply_operator(parser, sy))
1551 if (vec_last(sy->ops).paren == SY_PAREN_TERNARY) {
1554 if (vec_last(parser->pot) != POT_TERNARY1) {
1555 parseerror(parser, "mismatched colon in ternary expression (missing closing paren?)");
1558 vec_last(parser->pot) = POT_TERNARY2;
1559 /* pop off the parenthesis */
1560 vec_shrinkby(sy->ops, 1);
1563 if (!parser_sy_apply_operator(parser, sy))
1569 static void parser_reclassify_token(parser_t *parser)
1572 for (i = 0; i < operator_count; ++i) {
1573 if (!strcmp(parser_tokval(parser), operators[i].op)) {
1574 parser->tok = TOKEN_OPERATOR;
1580 static ast_expression* parse_vararg_do(parser_t *parser)
1582 ast_expression *idx, *out;
1584 ast_value *funtype = parser->function->vtype;
1586 lex_ctx ctx = parser_ctx(parser);
1588 if (!parser_next(parser) || parser->tok != '(') {
1589 parseerror(parser, "expected parameter index and type in parenthesis");
1592 if (!parser_next(parser)) {
1593 parseerror(parser, "error parsing parameter index");
1597 idx = parse_expression_leave(parser, true, false, false);
1601 if (parser->tok != ',') {
1603 parseerror(parser, "expected comma after parameter index");
1607 if (!parser_next(parser) || (parser->tok != TOKEN_IDENT && parser->tok != TOKEN_TYPENAME)) {
1609 parseerror(parser, "expected typename for vararg");
1613 typevar = parse_typename(parser, NULL, NULL);
1619 if (parser->tok != ')') {
1621 ast_delete(typevar);
1622 parseerror(parser, "expected closing paren");
1627 if (!parser_next(parser)) {
1629 ast_delete(typevar);
1630 parseerror(parser, "parse error after vararg");
1635 if (!parser->function->varargs) {
1637 ast_delete(typevar);
1638 parseerror(parser, "function has no variable argument list");
1642 if (funtype->expression.varparam &&
1643 !ast_compare_type((ast_expression*)typevar, (ast_expression*)funtype->expression.varparam))
1647 ast_type_to_string((ast_expression*)typevar, ty1, sizeof(ty1));
1648 ast_type_to_string((ast_expression*)funtype->expression.varparam, ty2, sizeof(ty2));
1649 compile_error(ast_ctx(typevar),
1650 "function was declared to take varargs of type `%s`, requested type is: %s",
1654 out = (ast_expression*)ast_array_index_new(ctx, (ast_expression*)(parser->function->varargs), idx);
1655 ast_type_adopt(out, typevar);
1656 ast_delete(typevar);
1660 static ast_expression* parse_vararg(parser_t *parser)
1662 bool old_noops = parser->lex->flags.noops;
1663 enum parser_pot *old_pot = parser->pot;
1665 ast_expression *out;
1668 parser->lex->flags.noops = true;
1669 out = parse_vararg_do(parser);
1671 parser->pot = old_pot;
1672 parser->lex->flags.noops = old_noops;
1676 static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels)
1678 ast_expression *expr = NULL;
1681 bool wantop = false;
1682 /* only warn once about an assignment in a truth value because the current code
1683 * would trigger twice on: if(a = b && ...), once for the if-truth-value, once for the && part
1685 bool warn_truthvalue = true;
1687 /* count the parens because an if starts with one, so the
1688 * end of a condition is an unmatched closing paren
1696 parser->lex->flags.noops = false;
1698 parser_reclassify_token(parser);
1702 if (OPTS_FLAG(TRANSLATABLE_STRINGS) &&
1703 parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "_"))
1705 /* a translatable string */
1709 parseerror(parser, "expected operator or end of statement, got constant");
1713 parser->lex->flags.noops = true;
1714 if (!parser_next(parser) || parser->tok != '(') {
1715 parseerror(parser, "use _(\"string\") to create a translatable string constant");
1718 parser->lex->flags.noops = false;
1719 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
1720 parseerror(parser, "expected a constant string in translatable-string extension");
1723 val = parser_const_string(parser, parser_tokval(parser), true);
1727 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1728 DEBUGSHUNTDO(con_out("push string\n"));
1730 if (!parser_next(parser) || parser->tok != ')') {
1731 parseerror(parser, "expected closing paren after translatable string");
1735 else if (parser->tok == TOKEN_DOTS)
1738 if (!OPTS_FLAG(VARIADIC_ARGS)) {
1739 parseerror(parser, "cannot access varargs (try -fvariadic-args)");
1743 parseerror(parser, "expected operator or end of statement");
1747 va = parse_vararg(parser);
1750 vec_push(sy.out, syexp(parser_ctx(parser), va));
1751 DEBUGSHUNTDO(con_out("push `...`\n"));
1753 else if (parser->tok == TOKEN_IDENT)
1755 const char *ctoken = parser_tokval(parser);
1756 ast_expression *prev = vec_size(sy.out) ? vec_last(sy.out).out : NULL;
1757 ast_expression *var;
1759 parseerror(parser, "expected operator or end of statement");
1763 /* a_vector.{x,y,z} */
1764 if (!vec_size(sy.ops) ||
1765 !vec_last(sy.ops).etype ||
1766 operators[vec_last(sy.ops).etype-1].id != opid1('.') ||
1767 (prev >= intrinsic_debug_typestring &&
1768 prev <= intrinsic_debug_typestring))
1770 /* When adding more intrinsics, fix the above condition */
1773 if (prev && prev->expression.vtype == TYPE_VECTOR && ctoken[0] >= 'x' && ctoken[0] <= 'z' && !ctoken[1])
1775 var = (ast_expression*)parser->const_vec[ctoken[0]-'x'];
1777 var = parser_find_var(parser, parser_tokval(parser));
1779 var = parser_find_field(parser, parser_tokval(parser));
1781 if (!var && with_labels) {
1782 var = (ast_expression*)parser_find_label(parser, parser_tokval(parser));
1784 ast_label *lbl = ast_label_new(parser_ctx(parser), parser_tokval(parser), true);
1785 var = (ast_expression*)lbl;
1786 vec_push(parser->labels, lbl);
1791 if (!strcmp(parser_tokval(parser), "__builtin_debug_typestring")) {
1792 var = (ast_expression*)intrinsic_debug_typestring;
1796 char *correct = NULL;
1799 * sometimes people use preprocessing predefs without enabling them
1800 * i've done this thousands of times already myself. Lets check for
1801 * it in the predef table. And diagnose it better :)
1803 if (!OPTS_FLAG(FTEPP_PREDEFS)) {
1804 for (i = 0; i < sizeof(ftepp_predefs)/sizeof(*ftepp_predefs); i++) {
1805 if (!strcmp(ftepp_predefs[i].name, parser_tokval(parser))) {
1806 parseerror(parser, "unexpected ident: %s (use -fftepp-predef to enable pre-defined macros)", parser_tokval(parser));
1813 * TODO: determine the best score for the identifier: be it
1814 * a variable, a field.
1816 * We should also consider adding correction tables for
1817 * other things as well.
1819 if (opts.correction) {
1821 correct_init(&corr);
1823 for (i = 0; i < vec_size(parser->correct_variables); i++) {
1824 correct = correct_str(&corr, parser->correct_variables[i], parser_tokval(parser));
1825 if (strcmp(correct, parser_tokval(parser))) {
1827 } else if (correct) {
1832 correct_free(&corr);
1835 parseerror(parser, "unexpected ident: %s (did you mean %s?)", parser_tokval(parser), correct);
1840 parseerror(parser, "unexpected ident: %s", parser_tokval(parser));
1846 if (ast_istype(var, ast_value)) {
1847 ((ast_value*)var)->uses++;
1849 else if (ast_istype(var, ast_member)) {
1850 ast_member *mem = (ast_member*)var;
1851 if (ast_istype(mem->owner, ast_value))
1852 ((ast_value*)(mem->owner))->uses++;
1855 vec_push(sy.out, syexp(parser_ctx(parser), var));
1856 DEBUGSHUNTDO(con_out("push %s\n", parser_tokval(parser)));
1858 else if (parser->tok == TOKEN_FLOATCONST) {
1861 parseerror(parser, "expected operator or end of statement, got constant");
1865 val = parser_const_float(parser, (parser_token(parser)->constval.f));
1868 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1869 DEBUGSHUNTDO(con_out("push %g\n", parser_token(parser)->constval.f));
1871 else if (parser->tok == TOKEN_INTCONST || parser->tok == TOKEN_CHARCONST) {
1874 parseerror(parser, "expected operator or end of statement, got constant");
1878 val = parser_const_float(parser, (double)(parser_token(parser)->constval.i));
1881 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1882 DEBUGSHUNTDO(con_out("push %i\n", parser_token(parser)->constval.i));
1884 else if (parser->tok == TOKEN_STRINGCONST) {
1887 parseerror(parser, "expected operator or end of statement, got constant");
1891 val = parser_const_string(parser, parser_tokval(parser), false);
1894 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1895 DEBUGSHUNTDO(con_out("push string\n"));
1897 else if (parser->tok == TOKEN_VECTORCONST) {
1900 parseerror(parser, "expected operator or end of statement, got constant");
1904 val = parser_const_vector(parser, parser_token(parser)->constval.v);
1907 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1908 DEBUGSHUNTDO(con_out("push '%g %g %g'\n",
1909 parser_token(parser)->constval.v.x,
1910 parser_token(parser)->constval.v.y,
1911 parser_token(parser)->constval.v.z));
1913 else if (parser->tok == '(') {
1914 parseerror(parser, "internal error: '(' should be classified as operator");
1917 else if (parser->tok == '[') {
1918 parseerror(parser, "internal error: '[' should be classified as operator");
1921 else if (parser->tok == ')') {
1923 DEBUGSHUNTDO(con_out("do[op] )\n"));
1927 /* we do expect an operator next */
1928 /* closing an opening paren */
1929 if (!parser_close_paren(parser, &sy, false))
1931 if (vec_last(parser->pot) != POT_PAREN) {
1932 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1935 vec_pop(parser->pot);
1937 DEBUGSHUNTDO(con_out("do[nop] )\n"));
1941 /* allowed for function calls */
1942 if (!parser_close_paren(parser, &sy, true))
1944 if (vec_last(parser->pot) != POT_PAREN) {
1945 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1948 vec_pop(parser->pot);
1952 else if (parser->tok == ']') {
1954 parseerror(parser, "operand expected");
1958 if (!parser_close_paren(parser, &sy, false))
1960 if (vec_last(parser->pot) != POT_PAREN) {
1961 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1964 vec_pop(parser->pot);
1967 else if (parser->tok == TOKEN_TYPENAME) {
1968 parseerror(parser, "unexpected typename");
1971 else if (parser->tok != TOKEN_OPERATOR) {
1973 parseerror(parser, "expected operator or end of statement");
1980 /* classify the operator */
1981 const oper_info *op;
1982 const oper_info *olast = NULL;
1984 for (o = 0; o < operator_count; ++o) {
1985 if (((!(operators[o].flags & OP_PREFIX) == !!wantop)) &&
1986 /* !(operators[o].flags & OP_SUFFIX) && / * remove this */
1987 !strcmp(parser_tokval(parser), operators[o].op))
1992 if (o == operator_count) {
1993 /* no operator found... must be the end of the statement */
1996 /* found an operator */
1999 /* when declaring variables, a comma starts a new variable */
2000 if (op->id == opid1(',') && !parens && stopatcomma) {
2001 /* fixup the token */
2006 /* a colon without a pervious question mark cannot be a ternary */
2007 if (!ternaries && op->id == opid2(':','?')) {
2012 if (op->id == opid1(',')) {
2013 if (vec_size(parser->pot) && vec_last(parser->pot) == POT_TERNARY2) {
2014 (void)!parsewarning(parser, WARN_TERNARY_PRECEDENCE, "suggesting parenthesis around ternary expression");
2018 if (vec_size(sy.ops) && !vec_last(sy.ops).paren)
2019 olast = &operators[vec_last(sy.ops).etype-1];
2021 #define IsAssignOp(x) (\
2022 (x) == opid1('=') || \
2023 (x) == opid2('+','=') || \
2024 (x) == opid2('-','=') || \
2025 (x) == opid2('*','=') || \
2026 (x) == opid2('/','=') || \
2027 (x) == opid2('%','=') || \
2028 (x) == opid2('&','=') || \
2029 (x) == opid2('|','=') || \
2030 (x) == opid3('&','~','=') \
2032 if (warn_truthvalue) {
2033 if ( (olast && IsAssignOp(olast->id) && (op->id == opid2('&','&') || op->id == opid2('|','|'))) ||
2034 (olast && IsAssignOp(op->id) && (olast->id == opid2('&','&') || olast->id == opid2('|','|'))) ||
2035 (truthvalue && !vec_size(parser->pot) && IsAssignOp(op->id))
2038 (void)!parsewarning(parser, WARN_PARENTHESIS, "suggesting parenthesis around assignment used as truth value");
2039 warn_truthvalue = false;
2044 (op->prec < olast->prec) ||
2045 (op->assoc == ASSOC_LEFT && op->prec <= olast->prec) ) )
2047 if (!parser_sy_apply_operator(parser, &sy))
2049 if (vec_size(sy.ops) && !vec_last(sy.ops).paren)
2050 olast = &operators[vec_last(sy.ops).etype-1];
2055 if (op->id == opid1('(')) {
2057 size_t sycount = vec_size(sy.out);
2058 DEBUGSHUNTDO(con_out("push [op] (\n"));
2059 ++parens; vec_push(parser->pot, POT_PAREN);
2060 /* we expected an operator, this is the function-call operator */
2061 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_FUNC, sycount-1));
2063 ++parens; vec_push(parser->pot, POT_PAREN);
2064 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_EXPR, 0));
2065 DEBUGSHUNTDO(con_out("push [nop] (\n"));
2068 } else if (op->id == opid1('[')) {
2070 parseerror(parser, "unexpected array subscript");
2073 ++parens; vec_push(parser->pot, POT_PAREN);
2074 /* push both the operator and the paren, this makes life easier */
2075 vec_push(sy.ops, syop(parser_ctx(parser), op));
2076 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_INDEX, 0));
2078 } else if (op->id == opid2('?',':')) {
2079 vec_push(sy.ops, syop(parser_ctx(parser), op));
2080 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_TERNARY, 0));
2083 vec_push(parser->pot, POT_TERNARY1);
2084 } else if (op->id == opid2(':','?')) {
2085 if (!vec_size(parser->pot)) {
2086 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
2089 if (vec_last(parser->pot) != POT_TERNARY1) {
2090 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
2093 if (!parser_close_paren(parser, &sy, false))
2095 vec_push(sy.ops, syop(parser_ctx(parser), op));
2099 DEBUGSHUNTDO(con_out("push operator %s\n", op->op));
2100 vec_push(sy.ops, syop(parser_ctx(parser), op));
2101 wantop = !!(op->flags & OP_SUFFIX);
2104 if (!parser_next(parser)) {
2107 if (parser->tok == ';' ||
2108 (!parens && (parser->tok == ']' || parser->tok == ')' || parser->tok == '}')))
2114 while (vec_size(sy.ops)) {
2115 if (!parser_sy_apply_operator(parser, &sy))
2119 parser->lex->flags.noops = true;
2120 if (!vec_size(sy.out)) {
2121 parseerror(parser, "empty expression");
2124 expr = sy.out[0].out;
2127 DEBUGSHUNTDO(con_out("shunt done\n"));
2128 if (vec_size(parser->pot)) {
2129 parseerror(parser, "internal error: vec_size(parser->pot) = %lu", (unsigned long)vec_size(parser->pot));
2132 vec_free(parser->pot);
2136 parser->lex->flags.noops = true;
2137 for (i = 0; i < vec_size(sy.out); ++i) {
2139 ast_unref(sy.out[i].out);
2146 static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels)
2148 ast_expression *e = parse_expression_leave(parser, stopatcomma, false, with_labels);
2151 if (parser->tok != ';') {
2152 parseerror(parser, "semicolon expected after expression");
2156 if (!parser_next(parser)) {
2163 static void parser_enterblock(parser_t *parser)
2165 vec_push(parser->variables, util_htnew(PARSER_HT_SIZE));
2166 vec_push(parser->_blocklocals, vec_size(parser->_locals));
2167 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
2168 vec_push(parser->_blocktypedefs, vec_size(parser->_typedefs));
2169 vec_push(parser->_block_ctx, parser_ctx(parser));
2172 vec_push(parser->correct_variables, correct_trie_new());
2173 vec_push(parser->correct_variables_score, NULL);
2176 static bool parser_leaveblock(parser_t *parser)
2179 size_t locals, typedefs;
2181 if (vec_size(parser->variables) <= PARSER_HT_LOCALS) {
2182 parseerror(parser, "internal error: parser_leaveblock with no block");
2186 util_htdel(vec_last(parser->variables));
2187 correct_del(vec_last(parser->correct_variables), vec_last(parser->correct_variables_score));
2189 vec_pop(parser->variables);
2190 vec_pop(parser->correct_variables);
2191 vec_pop(parser->correct_variables_score);
2192 if (!vec_size(parser->_blocklocals)) {
2193 parseerror(parser, "internal error: parser_leaveblock with no block (2)");
2197 locals = vec_last(parser->_blocklocals);
2198 vec_pop(parser->_blocklocals);
2199 while (vec_size(parser->_locals) != locals) {
2200 ast_expression *e = vec_last(parser->_locals);
2201 ast_value *v = (ast_value*)e;
2202 vec_pop(parser->_locals);
2203 if (ast_istype(e, ast_value) && !v->uses) {
2204 if (compile_warning(ast_ctx(v), WARN_UNUSED_VARIABLE, "unused variable: `%s`", v->name))
2209 typedefs = vec_last(parser->_blocktypedefs);
2210 while (vec_size(parser->_typedefs) != typedefs) {
2211 ast_delete(vec_last(parser->_typedefs));
2212 vec_pop(parser->_typedefs);
2214 util_htdel(vec_last(parser->typedefs));
2215 vec_pop(parser->typedefs);
2217 vec_pop(parser->_block_ctx);
2222 static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e)
2224 vec_push(parser->_locals, e);
2225 util_htset(vec_last(parser->variables), name, (void*)e);
2229 vec_last(parser->correct_variables),
2230 &vec_last(parser->correct_variables_score),
2235 static void parser_addglobal(parser_t *parser, const char *name, ast_expression *e)
2237 vec_push(parser->globals, e);
2238 util_htset(parser->htglobals, name, e);
2242 parser->correct_variables[0],
2243 &parser->correct_variables_score[0],
2248 static ast_expression* process_condition(parser_t *parser, ast_expression *cond, bool *_ifnot)
2252 ast_expression *prev;
2254 if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && cond->expression.vtype == TYPE_STRING)
2257 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_S, cond);
2260 parseerror(parser, "internal error: failed to process condition");
2265 else if (OPTS_FLAG(CORRECT_LOGIC) && cond->expression.vtype == TYPE_VECTOR)
2267 /* vector types need to be cast to true booleans */
2268 ast_binary *bin = (ast_binary*)cond;
2269 if (!OPTS_FLAG(PERL_LOGIC) || !ast_istype(cond, ast_binary) || !(bin->op == INSTR_AND || bin->op == INSTR_OR))
2271 /* in perl-logic, AND and OR take care of the -fcorrect-logic */
2273 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_V, cond);
2276 parseerror(parser, "internal error: failed to process condition");
2283 unary = (ast_unary*)cond;
2284 while (ast_istype(cond, ast_unary) && unary->op == INSTR_NOT_F)
2286 cond = unary->operand;
2287 unary->operand = NULL;
2290 unary = (ast_unary*)cond;
2294 parseerror(parser, "internal error: failed to process condition");
2296 if (ifnot) *_ifnot = !*_ifnot;
2300 static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out)
2303 ast_expression *cond, *ontrue = NULL, *onfalse = NULL;
2306 lex_ctx ctx = parser_ctx(parser);
2308 (void)block; /* not touching */
2310 /* skip the 'if', parse an optional 'not' and check for an opening paren */
2311 if (!parser_next(parser)) {
2312 parseerror(parser, "expected condition or 'not'");
2315 if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "not")) {
2317 if (!parser_next(parser)) {
2318 parseerror(parser, "expected condition in parenthesis");
2322 if (parser->tok != '(') {
2323 parseerror(parser, "expected 'if' condition in parenthesis");
2326 /* parse into the expression */
2327 if (!parser_next(parser)) {
2328 parseerror(parser, "expected 'if' condition after opening paren");
2331 /* parse the condition */
2332 cond = parse_expression_leave(parser, false, true, false);
2336 if (parser->tok != ')') {
2337 parseerror(parser, "expected closing paren after 'if' condition");
2341 /* parse into the 'then' branch */
2342 if (!parser_next(parser)) {
2343 parseerror(parser, "expected statement for on-true branch of 'if'");
2347 if (!parse_statement_or_block(parser, &ontrue)) {
2352 ontrue = (ast_expression*)ast_block_new(parser_ctx(parser));
2353 /* check for an else */
2354 if (!strcmp(parser_tokval(parser), "else")) {
2355 /* parse into the 'else' branch */
2356 if (!parser_next(parser)) {
2357 parseerror(parser, "expected on-false branch after 'else'");
2362 if (!parse_statement_or_block(parser, &onfalse)) {
2369 cond = process_condition(parser, cond, &ifnot);
2371 if (ontrue) ast_delete(ontrue);
2372 if (onfalse) ast_delete(onfalse);
2377 ifthen = ast_ifthen_new(ctx, cond, onfalse, ontrue);
2379 ifthen = ast_ifthen_new(ctx, cond, ontrue, onfalse);
2380 *out = (ast_expression*)ifthen;
2384 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out);
2385 static bool parse_while(parser_t *parser, ast_block *block, ast_expression **out)
2390 /* skip the 'while' and get the body */
2391 if (!parser_next(parser)) {
2392 if (OPTS_FLAG(LOOP_LABELS))
2393 parseerror(parser, "expected loop label or 'while' condition in parenthesis");
2395 parseerror(parser, "expected 'while' condition in parenthesis");
2399 if (parser->tok == ':') {
2400 if (!OPTS_FLAG(LOOP_LABELS))
2401 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2402 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2403 parseerror(parser, "expected loop label");
2406 label = util_strdup(parser_tokval(parser));
2407 if (!parser_next(parser)) {
2409 parseerror(parser, "expected 'while' condition in parenthesis");
2414 if (parser->tok != '(') {
2415 parseerror(parser, "expected 'while' condition in parenthesis");
2419 vec_push(parser->breaks, label);
2420 vec_push(parser->continues, label);
2422 rv = parse_while_go(parser, block, out);
2425 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2426 parseerror(parser, "internal error: label stack corrupted");
2432 vec_pop(parser->breaks);
2433 vec_pop(parser->continues);
2438 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out)
2441 ast_expression *cond, *ontrue;
2445 lex_ctx ctx = parser_ctx(parser);
2447 (void)block; /* not touching */
2449 /* parse into the expression */
2450 if (!parser_next(parser)) {
2451 parseerror(parser, "expected 'while' condition after opening paren");
2454 /* parse the condition */
2455 cond = parse_expression_leave(parser, false, true, false);
2459 if (parser->tok != ')') {
2460 parseerror(parser, "expected closing paren after 'while' condition");
2464 /* parse into the 'then' branch */
2465 if (!parser_next(parser)) {
2466 parseerror(parser, "expected while-loop body");
2470 if (!parse_statement_or_block(parser, &ontrue)) {
2475 cond = process_condition(parser, cond, &ifnot);
2480 aloop = ast_loop_new(ctx, NULL, cond, ifnot, NULL, false, NULL, ontrue);
2481 *out = (ast_expression*)aloop;
2485 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out);
2486 static bool parse_dowhile(parser_t *parser, ast_block *block, ast_expression **out)
2491 /* skip the 'do' and get the body */
2492 if (!parser_next(parser)) {
2493 if (OPTS_FLAG(LOOP_LABELS))
2494 parseerror(parser, "expected loop label or body");
2496 parseerror(parser, "expected loop body");
2500 if (parser->tok == ':') {
2501 if (!OPTS_FLAG(LOOP_LABELS))
2502 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2503 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2504 parseerror(parser, "expected loop label");
2507 label = util_strdup(parser_tokval(parser));
2508 if (!parser_next(parser)) {
2510 parseerror(parser, "expected loop body");
2515 vec_push(parser->breaks, label);
2516 vec_push(parser->continues, label);
2518 rv = parse_dowhile_go(parser, block, out);
2521 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2522 parseerror(parser, "internal error: label stack corrupted");
2528 vec_pop(parser->breaks);
2529 vec_pop(parser->continues);
2534 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out)
2537 ast_expression *cond, *ontrue;
2541 lex_ctx ctx = parser_ctx(parser);
2543 (void)block; /* not touching */
2545 if (!parse_statement_or_block(parser, &ontrue))
2548 /* expect the "while" */
2549 if (parser->tok != TOKEN_KEYWORD ||
2550 strcmp(parser_tokval(parser), "while"))
2552 parseerror(parser, "expected 'while' and condition");
2557 /* skip the 'while' and check for opening paren */
2558 if (!parser_next(parser) || parser->tok != '(') {
2559 parseerror(parser, "expected 'while' condition in parenthesis");
2563 /* parse into the expression */
2564 if (!parser_next(parser)) {
2565 parseerror(parser, "expected 'while' condition after opening paren");
2569 /* parse the condition */
2570 cond = parse_expression_leave(parser, false, true, false);
2574 if (parser->tok != ')') {
2575 parseerror(parser, "expected closing paren after 'while' condition");
2581 if (!parser_next(parser) || parser->tok != ';') {
2582 parseerror(parser, "expected semicolon after condition");
2588 if (!parser_next(parser)) {
2589 parseerror(parser, "parse error");
2595 cond = process_condition(parser, cond, &ifnot);
2600 aloop = ast_loop_new(ctx, NULL, NULL, false, cond, ifnot, NULL, ontrue);
2601 *out = (ast_expression*)aloop;
2605 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out);
2606 static bool parse_for(parser_t *parser, ast_block *block, ast_expression **out)
2611 /* skip the 'for' and check for opening paren */
2612 if (!parser_next(parser)) {
2613 if (OPTS_FLAG(LOOP_LABELS))
2614 parseerror(parser, "expected loop label or 'for' expressions in parenthesis");
2616 parseerror(parser, "expected 'for' expressions in parenthesis");
2620 if (parser->tok == ':') {
2621 if (!OPTS_FLAG(LOOP_LABELS))
2622 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2623 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2624 parseerror(parser, "expected loop label");
2627 label = util_strdup(parser_tokval(parser));
2628 if (!parser_next(parser)) {
2630 parseerror(parser, "expected 'for' expressions in parenthesis");
2635 if (parser->tok != '(') {
2636 parseerror(parser, "expected 'for' expressions in parenthesis");
2640 vec_push(parser->breaks, label);
2641 vec_push(parser->continues, label);
2643 rv = parse_for_go(parser, block, out);
2646 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2647 parseerror(parser, "internal error: label stack corrupted");
2653 vec_pop(parser->breaks);
2654 vec_pop(parser->continues);
2658 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out)
2661 ast_expression *initexpr, *cond, *increment, *ontrue;
2667 lex_ctx ctx = parser_ctx(parser);
2669 parser_enterblock(parser);
2676 /* parse into the expression */
2677 if (!parser_next(parser)) {
2678 parseerror(parser, "expected 'for' initializer after opening paren");
2683 if (parser->tok == TOKEN_IDENT)
2684 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
2686 if (typevar || parser->tok == TOKEN_TYPENAME) {
2688 if (opts.standard != COMPILER_GMQCC) {
2689 if (parsewarning(parser, WARN_EXTENSIONS,
2690 "current standard does not allow variable declarations in for-loop initializers"))
2694 if (!parse_variable(parser, block, true, CV_VAR, typevar, false, false, 0, NULL))
2697 else if (parser->tok != ';')
2699 initexpr = parse_expression_leave(parser, false, false, false);
2704 /* move on to condition */
2705 if (parser->tok != ';') {
2706 parseerror(parser, "expected semicolon after for-loop initializer");
2709 if (!parser_next(parser)) {
2710 parseerror(parser, "expected for-loop condition");
2714 /* parse the condition */
2715 if (parser->tok != ';') {
2716 cond = parse_expression_leave(parser, false, true, false);
2721 /* move on to incrementor */
2722 if (parser->tok != ';') {
2723 parseerror(parser, "expected semicolon after for-loop initializer");
2726 if (!parser_next(parser)) {
2727 parseerror(parser, "expected for-loop condition");
2731 /* parse the incrementor */
2732 if (parser->tok != ')') {
2733 increment = parse_expression_leave(parser, false, false, false);
2736 if (!ast_side_effects(increment)) {
2737 if (genwarning(ast_ctx(increment), WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
2743 if (parser->tok != ')') {
2744 parseerror(parser, "expected closing paren after 'for-loop' incrementor");
2747 /* parse into the 'then' branch */
2748 if (!parser_next(parser)) {
2749 parseerror(parser, "expected for-loop body");
2752 if (!parse_statement_or_block(parser, &ontrue))
2756 cond = process_condition(parser, cond, &ifnot);
2760 aloop = ast_loop_new(ctx, initexpr, cond, ifnot, NULL, false, increment, ontrue);
2761 *out = (ast_expression*)aloop;
2763 if (!parser_leaveblock(parser))
2767 if (initexpr) ast_delete(initexpr);
2768 if (cond) ast_delete(cond);
2769 if (increment) ast_delete(increment);
2770 (void)!parser_leaveblock(parser);
2774 static bool parse_return(parser_t *parser, ast_block *block, ast_expression **out)
2776 ast_expression *exp = NULL;
2777 ast_return *ret = NULL;
2778 ast_value *expected = parser->function->vtype;
2780 lex_ctx ctx = parser_ctx(parser);
2782 (void)block; /* not touching */
2784 if (!parser_next(parser)) {
2785 parseerror(parser, "expected return expression");
2789 if (parser->tok != ';') {
2790 exp = parse_expression(parser, false, false);
2794 if (exp->expression.vtype != TYPE_NIL &&
2795 exp->expression.vtype != expected->expression.next->expression.vtype)
2797 parseerror(parser, "return with invalid expression");
2800 ret = ast_return_new(ctx, exp);
2806 if (!parser_next(parser))
2807 parseerror(parser, "parse error");
2808 if (expected->expression.next->expression.vtype != TYPE_VOID) {
2809 (void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value");
2811 ret = ast_return_new(ctx, NULL);
2813 *out = (ast_expression*)ret;
2817 static bool parse_break_continue(parser_t *parser, ast_block *block, ast_expression **out, bool is_continue)
2820 unsigned int levels = 0;
2821 lex_ctx ctx = parser_ctx(parser);
2822 const char **loops = (is_continue ? parser->continues : parser->breaks);
2824 (void)block; /* not touching */
2825 if (!parser_next(parser)) {
2826 parseerror(parser, "expected semicolon or loop label");
2830 if (!vec_size(loops)) {
2832 parseerror(parser, "`continue` can only be used inside loops");
2834 parseerror(parser, "`break` can only be used inside loops or switches");
2837 if (parser->tok == TOKEN_IDENT) {
2838 if (!OPTS_FLAG(LOOP_LABELS))
2839 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2840 i = vec_size(loops);
2842 if (loops[i] && !strcmp(loops[i], parser_tokval(parser)))
2845 parseerror(parser, "no such loop to %s: `%s`",
2846 (is_continue ? "continue" : "break out of"),
2847 parser_tokval(parser));
2852 if (!parser_next(parser)) {
2853 parseerror(parser, "expected semicolon");
2858 if (parser->tok != ';') {
2859 parseerror(parser, "expected semicolon");
2863 if (!parser_next(parser))
2864 parseerror(parser, "parse error");
2866 *out = (ast_expression*)ast_breakcont_new(ctx, is_continue, levels);
2870 /* returns true when it was a variable qualifier, false otherwise!
2871 * on error, cvq is set to CV_WRONG
2873 static bool parse_qualifiers(parser_t *parser, bool with_local, int *cvq, bool *noref, bool *is_static, uint32_t *_flags, char **message)
2875 bool had_const = false;
2876 bool had_var = false;
2877 bool had_noref = false;
2878 bool had_attrib = false;
2879 bool had_static = false;
2884 if (parser->tok == TOKEN_ATTRIBUTE_OPEN) {
2886 /* parse an attribute */
2887 if (!parser_next(parser)) {
2888 parseerror(parser, "expected attribute after `[[`");
2892 if (!strcmp(parser_tokval(parser), "noreturn")) {
2893 flags |= AST_FLAG_NORETURN;
2894 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2895 parseerror(parser, "`noreturn` attribute has no parameters, expected `]]`");
2900 else if (!strcmp(parser_tokval(parser), "noref")) {
2902 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2903 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2908 else if (!strcmp(parser_tokval(parser), "inline")) {
2909 flags |= AST_FLAG_INLINE;
2910 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2911 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2918 else if (!strcmp(parser_tokval(parser), "deprecated") && !(flags & AST_FLAG_DEPRECATED)) {
2919 flags |= AST_FLAG_DEPRECATED;
2922 if (!parser_next(parser)) {
2923 parseerror(parser, "parse error in attribute");
2927 if (parser->tok == '(') {
2928 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
2929 parseerror(parser, "`deprecated` attribute missing parameter");
2933 *message = util_strdup(parser_tokval(parser));
2935 if (!parser_next(parser)) {
2936 parseerror(parser, "parse error in attribute");
2940 if(parser->tok != ')') {
2941 parseerror(parser, "`deprecated` attribute expected `)` after parameter");
2945 if (!parser_next(parser)) {
2946 parseerror(parser, "parse error in attribute");
2951 if (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2952 parseerror(parser, "`deprecated` attribute expected `]]`");
2955 if (*message) mem_d(*message);
2963 /* Skip tokens until we hit a ]] */
2964 (void)!parsewarning(parser, WARN_UNKNOWN_ATTRIBUTE, "unknown attribute starting with `%s`", parser_tokval(parser));
2965 while (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2966 if (!parser_next(parser)) {
2967 parseerror(parser, "error inside attribute");
2974 else if (with_local && !strcmp(parser_tokval(parser), "static"))
2976 else if (!strcmp(parser_tokval(parser), "const"))
2978 else if (!strcmp(parser_tokval(parser), "var"))
2980 else if (with_local && !strcmp(parser_tokval(parser), "local"))
2982 else if (!strcmp(parser_tokval(parser), "noref"))
2984 else if (!had_const && !had_var && !had_noref && !had_attrib && !had_static && !flags) {
2989 if (!parser_next(parser))
2999 *is_static = had_static;
3003 parseerror(parser, "parse error after variable qualifier");
3008 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out);
3009 static bool parse_switch(parser_t *parser, ast_block *block, ast_expression **out)
3014 /* skip the 'while' and get the body */
3015 if (!parser_next(parser)) {
3016 if (OPTS_FLAG(LOOP_LABELS))
3017 parseerror(parser, "expected loop label or 'switch' operand in parenthesis");
3019 parseerror(parser, "expected 'switch' operand in parenthesis");
3023 if (parser->tok == ':') {
3024 if (!OPTS_FLAG(LOOP_LABELS))
3025 parseerror(parser, "labeled loops not activated, try using -floop-labels");
3026 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
3027 parseerror(parser, "expected loop label");
3030 label = util_strdup(parser_tokval(parser));
3031 if (!parser_next(parser)) {
3033 parseerror(parser, "expected 'switch' operand in parenthesis");
3038 if (parser->tok != '(') {
3039 parseerror(parser, "expected 'switch' operand in parenthesis");
3043 vec_push(parser->breaks, label);
3045 rv = parse_switch_go(parser, block, out);
3048 if (vec_last(parser->breaks) != label) {
3049 parseerror(parser, "internal error: label stack corrupted");
3055 vec_pop(parser->breaks);
3060 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out)
3062 ast_expression *operand;
3065 ast_switch *switchnode;
3066 ast_switch_case swcase;
3069 bool noref, is_static;
3070 uint32_t qflags = 0;
3072 lex_ctx ctx = parser_ctx(parser);
3074 (void)block; /* not touching */
3077 /* parse into the expression */
3078 if (!parser_next(parser)) {
3079 parseerror(parser, "expected switch operand");
3082 /* parse the operand */
3083 operand = parse_expression_leave(parser, false, false, false);
3087 switchnode = ast_switch_new(ctx, operand);
3090 if (parser->tok != ')') {
3091 ast_delete(switchnode);
3092 parseerror(parser, "expected closing paren after 'switch' operand");
3096 /* parse over the opening paren */
3097 if (!parser_next(parser) || parser->tok != '{') {
3098 ast_delete(switchnode);
3099 parseerror(parser, "expected list of cases");
3103 if (!parser_next(parser)) {
3104 ast_delete(switchnode);
3105 parseerror(parser, "expected 'case' or 'default'");
3109 /* new block; allow some variables to be declared here */
3110 parser_enterblock(parser);
3113 if (parser->tok == TOKEN_IDENT)
3114 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
3115 if (typevar || parser->tok == TOKEN_TYPENAME) {
3116 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL)) {
3117 ast_delete(switchnode);
3122 if (parse_qualifiers(parser, true, &cvq, &noref, &is_static, &qflags, NULL))
3124 if (cvq == CV_WRONG) {
3125 ast_delete(switchnode);
3128 if (!parse_variable(parser, block, false, cvq, NULL, noref, is_static, qflags, NULL)) {
3129 ast_delete(switchnode);
3138 while (parser->tok != '}') {
3139 ast_block *caseblock;
3141 if (!strcmp(parser_tokval(parser), "case")) {
3142 if (!parser_next(parser)) {
3143 ast_delete(switchnode);
3144 parseerror(parser, "expected expression for case");
3147 swcase.value = parse_expression_leave(parser, false, false, false);
3148 if (!swcase.value) {
3149 ast_delete(switchnode);
3150 parseerror(parser, "expected expression for case");
3153 if (!OPTS_FLAG(RELAXED_SWITCH)) {
3154 if (!ast_istype(swcase.value, ast_value)) { /* || ((ast_value*)swcase.value)->cvq != CV_CONST) { */
3155 parseerror(parser, "case on non-constant values need to be explicitly enabled via -frelaxed-switch");
3161 else if (!strcmp(parser_tokval(parser), "default")) {
3162 swcase.value = NULL;
3163 if (!parser_next(parser)) {
3164 ast_delete(switchnode);
3165 parseerror(parser, "expected colon");
3170 ast_delete(switchnode);
3171 parseerror(parser, "expected 'case' or 'default'");
3175 /* Now the colon and body */
3176 if (parser->tok != ':') {
3177 if (swcase.value) ast_unref(swcase.value);
3178 ast_delete(switchnode);
3179 parseerror(parser, "expected colon");
3183 if (!parser_next(parser)) {
3184 if (swcase.value) ast_unref(swcase.value);
3185 ast_delete(switchnode);
3186 parseerror(parser, "expected statements or case");
3189 caseblock = ast_block_new(parser_ctx(parser));
3191 if (swcase.value) ast_unref(swcase.value);
3192 ast_delete(switchnode);
3195 swcase.code = (ast_expression*)caseblock;
3196 vec_push(switchnode->cases, swcase);
3198 ast_expression *expr;
3199 if (parser->tok == '}')
3201 if (parser->tok == TOKEN_KEYWORD) {
3202 if (!strcmp(parser_tokval(parser), "case") ||
3203 !strcmp(parser_tokval(parser), "default"))
3208 if (!parse_statement(parser, caseblock, &expr, true)) {
3209 ast_delete(switchnode);
3214 if (!ast_block_add_expr(caseblock, expr)) {
3215 ast_delete(switchnode);
3221 parser_leaveblock(parser);
3224 if (parser->tok != '}') {
3225 ast_delete(switchnode);
3226 parseerror(parser, "expected closing paren of case list");
3229 if (!parser_next(parser)) {
3230 ast_delete(switchnode);
3231 parseerror(parser, "parse error after switch");
3234 *out = (ast_expression*)switchnode;
3238 /* parse computed goto sides */
3239 static ast_expression *parse_goto_computed(parser_t *parser, ast_expression **side) {
3240 ast_expression *on_true;
3241 ast_expression *on_false;
3242 ast_expression *cond;
3247 if (ast_istype(*side, ast_ternary)) {
3248 ast_ternary *tern = (ast_ternary*)*side;
3249 on_true = parse_goto_computed(parser, &tern->on_true);
3250 on_false = parse_goto_computed(parser, &tern->on_false);
3252 if (!on_true || !on_false) {
3253 parseerror(parser, "expected label or expression in ternary");
3254 if (on_true) ast_unref(on_true);
3255 if (on_false) ast_unref(on_false);
3263 return (ast_expression*)ast_ifthen_new(parser_ctx(parser), cond, on_true, on_false);
3264 } else if (ast_istype(*side, ast_label)) {
3265 ast_goto *gt = ast_goto_new(parser_ctx(parser), ((ast_label*)*side)->name);
3266 ast_goto_set_label(gt, ((ast_label*)*side));
3268 return (ast_expression*)gt;
3273 static bool parse_goto(parser_t *parser, ast_expression **out)
3275 ast_goto *gt = NULL;
3276 ast_expression *lbl;
3278 if (!parser_next(parser))
3281 if (parser->tok != TOKEN_IDENT) {
3282 ast_expression *expression;
3284 /* could be an expression i.e computed goto :-) */
3285 if (parser->tok != '(') {
3286 parseerror(parser, "expected label name after `goto`");
3290 /* failed to parse expression for goto */
3291 if (!(expression = parse_expression(parser, false, true)) ||
3292 !(*out = parse_goto_computed(parser, &expression))) {
3293 parseerror(parser, "invalid goto expression");
3294 ast_unref(expression);
3301 /* not computed goto */
3302 gt = ast_goto_new(parser_ctx(parser), parser_tokval(parser));
3303 lbl = parser_find_label(parser, gt->name);
3305 if (!ast_istype(lbl, ast_label)) {
3306 parseerror(parser, "internal error: label is not an ast_label");
3310 ast_goto_set_label(gt, (ast_label*)lbl);
3313 vec_push(parser->gotos, gt);
3315 if (!parser_next(parser) || parser->tok != ';') {
3316 parseerror(parser, "semicolon expected after goto label");
3319 if (!parser_next(parser)) {
3320 parseerror(parser, "parse error after goto");
3324 *out = (ast_expression*)gt;
3328 static bool parse_skipwhite(parser_t *parser)
3331 if (!parser_next(parser))
3333 } while (parser->tok == TOKEN_WHITE && parser->tok < TOKEN_ERROR);
3334 return parser->tok < TOKEN_ERROR;
3337 static bool parse_eol(parser_t *parser)
3339 if (!parse_skipwhite(parser))
3341 return parser->tok == TOKEN_EOL;
3344 static bool parse_pragma_do(parser_t *parser)
3346 if (!parser_next(parser) ||
3347 parser->tok != TOKEN_IDENT ||
3348 strcmp(parser_tokval(parser), "pragma"))
3350 parseerror(parser, "expected `pragma` keyword after `#`, got `%s`", parser_tokval(parser));
3353 if (!parse_skipwhite(parser) || parser->tok != TOKEN_IDENT) {
3354 parseerror(parser, "expected pragma, got `%s`", parser_tokval(parser));
3358 if (!strcmp(parser_tokval(parser), "noref")) {
3359 if (!parse_skipwhite(parser) || parser->tok != TOKEN_INTCONST) {
3360 parseerror(parser, "`noref` pragma requires an argument: 0 or 1");
3363 parser->noref = !!parser_token(parser)->constval.i;
3364 if (!parse_eol(parser)) {
3365 parseerror(parser, "parse error after `noref` pragma");
3371 (void)!parsewarning(parser, WARN_UNKNOWN_PRAGMAS, "ignoring #pragma %s", parser_tokval(parser));
3378 static bool parse_pragma(parser_t *parser)
3381 parser->lex->flags.preprocessing = true;
3382 parser->lex->flags.mergelines = true;
3383 rv = parse_pragma_do(parser);
3384 if (parser->tok != TOKEN_EOL) {
3385 parseerror(parser, "junk after pragma");
3388 parser->lex->flags.preprocessing = false;
3389 parser->lex->flags.mergelines = false;
3390 if (!parser_next(parser)) {
3391 parseerror(parser, "parse error after pragma");
3397 static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases)
3399 bool noref, is_static;
3401 uint32_t qflags = 0;
3402 ast_value *typevar = NULL;
3403 char *vstring = NULL;
3407 if (parser->tok == TOKEN_IDENT)
3408 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
3410 if (typevar || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
3412 /* local variable */
3414 parseerror(parser, "cannot declare a variable from here");
3417 if (opts.standard == COMPILER_QCC) {
3418 if (parsewarning(parser, WARN_EXTENSIONS, "missing 'local' keyword when declaring a local variable"))
3421 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL))
3425 else if (parse_qualifiers(parser, !!block, &cvq, &noref, &is_static, &qflags, &vstring))
3427 if (cvq == CV_WRONG)
3429 return parse_variable(parser, block, true, cvq, NULL, noref, is_static, qflags, vstring);
3431 else if (parser->tok == TOKEN_KEYWORD)
3433 if (!strcmp(parser_tokval(parser), "__builtin_debug_printtype"))
3438 if (!parser_next(parser)) {
3439 parseerror(parser, "parse error after __builtin_debug_printtype");
3443 if (parser->tok == TOKEN_IDENT && (tdef = parser_find_typedef(parser, parser_tokval(parser), 0)))
3445 ast_type_to_string((ast_expression*)tdef, ty, sizeof(ty));
3446 con_out("__builtin_debug_printtype: `%s`=`%s`\n", tdef->name, ty);
3447 if (!parser_next(parser)) {
3448 parseerror(parser, "parse error after __builtin_debug_printtype typename argument");
3454 if (!parse_statement(parser, block, out, allow_cases))
3457 con_out("__builtin_debug_printtype: got no output node\n");
3460 ast_type_to_string(*out, ty, sizeof(ty));
3461 con_out("__builtin_debug_printtype: `%s`\n", ty);
3466 else if (!strcmp(parser_tokval(parser), "return"))
3468 return parse_return(parser, block, out);
3470 else if (!strcmp(parser_tokval(parser), "if"))
3472 return parse_if(parser, block, out);
3474 else if (!strcmp(parser_tokval(parser), "while"))
3476 return parse_while(parser, block, out);
3478 else if (!strcmp(parser_tokval(parser), "do"))
3480 return parse_dowhile(parser, block, out);
3482 else if (!strcmp(parser_tokval(parser), "for"))
3484 if (opts.standard == COMPILER_QCC) {
3485 if (parsewarning(parser, WARN_EXTENSIONS, "for loops are not recognized in the original Quake C standard, to enable try an alternate standard --std=?"))
3488 return parse_for(parser, block, out);
3490 else if (!strcmp(parser_tokval(parser), "break"))
3492 return parse_break_continue(parser, block, out, false);
3494 else if (!strcmp(parser_tokval(parser), "continue"))
3496 return parse_break_continue(parser, block, out, true);
3498 else if (!strcmp(parser_tokval(parser), "switch"))
3500 return parse_switch(parser, block, out);
3502 else if (!strcmp(parser_tokval(parser), "case") ||
3503 !strcmp(parser_tokval(parser), "default"))
3506 parseerror(parser, "unexpected 'case' label");
3511 else if (!strcmp(parser_tokval(parser), "goto"))
3513 return parse_goto(parser, out);
3515 else if (!strcmp(parser_tokval(parser), "typedef"))
3517 if (!parser_next(parser)) {
3518 parseerror(parser, "expected type definition after 'typedef'");
3521 return parse_typedef(parser);
3523 parseerror(parser, "Unexpected keyword");
3526 else if (parser->tok == '{')
3529 inner = parse_block(parser);
3532 *out = (ast_expression*)inner;
3535 else if (parser->tok == ':')
3539 if (!parser_next(parser)) {
3540 parseerror(parser, "expected label name");
3543 if (parser->tok != TOKEN_IDENT) {
3544 parseerror(parser, "label must be an identifier");
3547 label = (ast_label*)parser_find_label(parser, parser_tokval(parser));
3549 if (!label->undefined) {
3550 parseerror(parser, "label `%s` already defined", label->name);
3553 label->undefined = false;
3556 label = ast_label_new(parser_ctx(parser), parser_tokval(parser), false);
3557 vec_push(parser->labels, label);
3559 *out = (ast_expression*)label;
3560 if (!parser_next(parser)) {
3561 parseerror(parser, "parse error after label");
3564 for (i = 0; i < vec_size(parser->gotos); ++i) {
3565 if (!strcmp(parser->gotos[i]->name, label->name)) {
3566 ast_goto_set_label(parser->gotos[i], label);
3567 vec_remove(parser->gotos, i, 1);
3573 else if (parser->tok == ';')
3575 if (!parser_next(parser)) {
3576 parseerror(parser, "parse error after empty statement");
3583 ast_expression *exp = parse_expression(parser, false, false);
3587 if (!ast_side_effects(exp)) {
3588 if (genwarning(ast_ctx(exp), WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
3595 static bool parse_enum(parser_t *parser)
3598 ast_value **values = NULL;
3599 ast_value *var = NULL;
3602 ast_expression *old;
3604 if (!parser_next(parser) || parser->tok != '{') {
3605 parseerror(parser, "expected `{` after `enum` keyword");
3610 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
3611 if (parser->tok == '}') {
3612 /* allow an empty enum */
3615 parseerror(parser, "expected identifier or `}`");
3619 old = parser_find_field(parser, parser_tokval(parser));
3621 old = parser_find_global(parser, parser_tokval(parser));
3623 parseerror(parser, "value `%s` has already been declared here: %s:%i",
3624 parser_tokval(parser), ast_ctx(old).file, ast_ctx(old).line);
3628 var = ast_value_new(parser_ctx(parser), parser_tokval(parser), TYPE_FLOAT);
3629 vec_push(values, var);
3630 var->cvq = CV_CONST;
3631 var->hasvalue = true;
3632 var->constval.vfloat = num++;
3634 parser_addglobal(parser, var->name, (ast_expression*)var);
3636 if (!parser_next(parser)) {
3637 parseerror(parser, "expected `=`, `}` or comma after identifier");
3641 if (parser->tok == ',')
3643 if (parser->tok == '}')
3645 if (parser->tok != '=') {
3646 parseerror(parser, "expected `=`, `}` or comma after identifier");
3650 if (!parser_next(parser)) {
3651 parseerror(parser, "expected expression after `=`");
3655 /* We got a value! */
3656 old = parse_expression_leave(parser, true, false, false);
3657 asvalue = (ast_value*)old;
3658 if (!ast_istype(old, ast_value) || asvalue->cvq != CV_CONST || !asvalue->hasvalue) {
3659 compile_error(ast_ctx(var), "constant value or expression expected");
3662 num = (var->constval.vfloat = asvalue->constval.vfloat) + 1;
3664 if (parser->tok == '}')
3666 if (parser->tok != ',') {
3667 parseerror(parser, "expected `}` or comma after expression");
3672 if (parser->tok != '}') {
3673 parseerror(parser, "internal error: breaking without `}`");
3677 if (!parser_next(parser) || parser->tok != ';') {
3678 parseerror(parser, "expected semicolon after enumeration");
3682 if (!parser_next(parser)) {
3683 parseerror(parser, "parse error after enumeration");
3695 static bool parse_block_into(parser_t *parser, ast_block *block)
3699 parser_enterblock(parser);
3701 if (!parser_next(parser)) { /* skip the '{' */
3702 parseerror(parser, "expected function body");
3706 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
3708 ast_expression *expr = NULL;
3709 if (parser->tok == '}')
3712 if (!parse_statement(parser, block, &expr, false)) {
3713 /* parseerror(parser, "parse error"); */
3719 if (!ast_block_add_expr(block, expr)) {
3726 if (parser->tok != '}') {
3729 (void)parser_next(parser);
3733 if (!parser_leaveblock(parser))
3735 return retval && !!block;
3738 static ast_block* parse_block(parser_t *parser)
3741 block = ast_block_new(parser_ctx(parser));
3744 if (!parse_block_into(parser, block)) {
3745 ast_block_delete(block);
3751 static bool parse_statement_or_block(parser_t *parser, ast_expression **out)
3753 if (parser->tok == '{') {
3754 *out = (ast_expression*)parse_block(parser);
3757 return parse_statement(parser, NULL, out, false);
3760 static bool create_vector_members(ast_value *var, ast_member **me)
3763 size_t len = strlen(var->name);
3765 for (i = 0; i < 3; ++i) {
3766 char *name = (char*)mem_a(len+3);
3767 memcpy(name, var->name, len);
3769 name[len+1] = 'x'+i;
3771 me[i] = ast_member_new(ast_ctx(var), (ast_expression*)var, i, name);
3780 do { ast_member_delete(me[--i]); } while(i);
3784 static bool parse_function_body(parser_t *parser, ast_value *var)
3786 ast_block *block = NULL;
3791 ast_expression *framenum = NULL;
3792 ast_expression *nextthink = NULL;
3793 /* None of the following have to be deleted */
3794 ast_expression *fld_think = NULL, *fld_nextthink = NULL, *fld_frame = NULL;
3795 ast_expression *gbl_time = NULL, *gbl_self = NULL;
3796 bool has_frame_think;
3800 has_frame_think = false;
3801 old = parser->function;
3803 if (vec_size(parser->gotos) || vec_size(parser->labels)) {
3804 parseerror(parser, "gotos/labels leaking");
3808 if (!OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC) {
3809 if (parsewarning(parser, WARN_VARIADIC_FUNCTION,
3810 "variadic function with implementation will not be able to access additional parameters (try -fvariadic-args)"))
3816 if (parser->tok == '[') {
3817 /* got a frame definition: [ framenum, nextthink ]
3818 * this translates to:
3819 * self.frame = framenum;
3820 * self.nextthink = time + 0.1;
3821 * self.think = nextthink;
3825 fld_think = parser_find_field(parser, "think");
3826 fld_nextthink = parser_find_field(parser, "nextthink");
3827 fld_frame = parser_find_field(parser, "frame");
3828 if (!fld_think || !fld_nextthink || !fld_frame) {
3829 parseerror(parser, "cannot use [frame,think] notation without the required fields");
3830 parseerror(parser, "please declare the following entityfields: `frame`, `think`, `nextthink`");
3833 gbl_time = parser_find_global(parser, "time");
3834 gbl_self = parser_find_global(parser, "self");
3835 if (!gbl_time || !gbl_self) {
3836 parseerror(parser, "cannot use [frame,think] notation without the required globals");
3837 parseerror(parser, "please declare the following globals: `time`, `self`");
3841 if (!parser_next(parser))
3844 framenum = parse_expression_leave(parser, true, false, false);
3846 parseerror(parser, "expected a framenumber constant in[frame,think] notation");
3849 if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->hasvalue) {
3850 ast_unref(framenum);
3851 parseerror(parser, "framenumber in [frame,think] notation must be a constant");
3855 if (parser->tok != ',') {
3856 ast_unref(framenum);
3857 parseerror(parser, "expected comma after frame number in [frame,think] notation");
3858 parseerror(parser, "Got a %i\n", parser->tok);
3862 if (!parser_next(parser)) {
3863 ast_unref(framenum);
3867 if (parser->tok == TOKEN_IDENT && !parser_find_var(parser, parser_tokval(parser)))
3869 /* qc allows the use of not-yet-declared functions here
3870 * - this automatically creates a prototype */
3871 ast_value *thinkfunc;
3872 ast_expression *functype = fld_think->expression.next;
3874 thinkfunc = ast_value_new(parser_ctx(parser), parser_tokval(parser), functype->expression.vtype);
3875 if (!thinkfunc || !ast_type_adopt(thinkfunc, functype)) {
3876 ast_unref(framenum);
3877 parseerror(parser, "failed to create implicit prototype for `%s`", parser_tokval(parser));
3881 if (!parser_next(parser)) {
3882 ast_unref(framenum);
3883 ast_delete(thinkfunc);
3887 parser_addglobal(parser, thinkfunc->name, (ast_expression*)thinkfunc);
3889 nextthink = (ast_expression*)thinkfunc;
3892 nextthink = parse_expression_leave(parser, true, false, false);
3894 ast_unref(framenum);
3895 parseerror(parser, "expected a think-function in [frame,think] notation");
3900 if (!ast_istype(nextthink, ast_value)) {
3901 parseerror(parser, "think-function in [frame,think] notation must be a constant");
3905 if (retval && parser->tok != ']') {
3906 parseerror(parser, "expected closing `]` for [frame,think] notation");
3910 if (retval && !parser_next(parser)) {
3914 if (retval && parser->tok != '{') {
3915 parseerror(parser, "a function body has to be declared after a [frame,think] declaration");
3920 ast_unref(nextthink);
3921 ast_unref(framenum);
3925 has_frame_think = true;
3928 block = ast_block_new(parser_ctx(parser));
3930 parseerror(parser, "failed to allocate block");
3931 if (has_frame_think) {
3932 ast_unref(nextthink);
3933 ast_unref(framenum);
3938 if (has_frame_think) {
3940 ast_expression *self_frame;
3941 ast_expression *self_nextthink;
3942 ast_expression *self_think;
3943 ast_expression *time_plus_1;
3944 ast_store *store_frame;
3945 ast_store *store_nextthink;
3946 ast_store *store_think;
3948 ctx = parser_ctx(parser);
3949 self_frame = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_frame);
3950 self_nextthink = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_nextthink);
3951 self_think = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_think);
3953 time_plus_1 = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F,
3954 gbl_time, (ast_expression*)parser_const_float(parser, 0.1));
3956 if (!self_frame || !self_nextthink || !self_think || !time_plus_1) {
3957 if (self_frame) ast_delete(self_frame);
3958 if (self_nextthink) ast_delete(self_nextthink);
3959 if (self_think) ast_delete(self_think);
3960 if (time_plus_1) ast_delete(time_plus_1);
3966 store_frame = ast_store_new(ctx, INSTR_STOREP_F, self_frame, framenum);
3967 store_nextthink = ast_store_new(ctx, INSTR_STOREP_F, self_nextthink, time_plus_1);
3968 store_think = ast_store_new(ctx, INSTR_STOREP_FNC, self_think, nextthink);
3971 ast_delete(self_frame);
3974 if (!store_nextthink) {
3975 ast_delete(self_nextthink);
3979 ast_delete(self_think);
3983 if (store_frame) ast_delete(store_frame);
3984 if (store_nextthink) ast_delete(store_nextthink);
3985 if (store_think) ast_delete(store_think);
3988 if (!ast_block_add_expr(block, (ast_expression*)store_frame) ||
3989 !ast_block_add_expr(block, (ast_expression*)store_nextthink) ||
3990 !ast_block_add_expr(block, (ast_expression*)store_think))
3997 parseerror(parser, "failed to generate code for [frame,think]");
3998 ast_unref(nextthink);
3999 ast_unref(framenum);
4005 func = ast_function_new(ast_ctx(var), var->name, var);
4007 parseerror(parser, "failed to allocate function for `%s`", var->name);
4008 ast_block_delete(block);
4011 vec_push(parser->functions, func);
4013 parser_enterblock(parser);
4015 for (parami = 0; parami < vec_size(var->expression.params); ++parami) {
4017 ast_value *param = var->expression.params[parami];
4020 if (param->expression.vtype != TYPE_VECTOR &&
4021 (param->expression.vtype != TYPE_FIELD ||
4022 param->expression.next->expression.vtype != TYPE_VECTOR))
4027 if (!create_vector_members(param, me)) {
4028 ast_block_delete(block);
4032 for (e = 0; e < 3; ++e) {
4033 parser_addlocal(parser, me[e]->name, (ast_expression*)me[e]);
4034 ast_block_collect(block, (ast_expression*)me[e]);
4038 if (var->argcounter) {
4039 ast_value *argc = ast_value_new(ast_ctx(var), var->argcounter, TYPE_FLOAT);
4040 parser_addlocal(parser, argc->name, (ast_expression*)argc);
4044 if (OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC) {
4046 ast_value *varargs = ast_value_new(ast_ctx(var), "reserved:va_args", TYPE_ARRAY);
4047 varargs->expression.flags |= AST_FLAG_IS_VARARG;
4048 varargs->expression.next = (ast_expression*)ast_value_new(ast_ctx(var), NULL, TYPE_VECTOR);
4049 varargs->expression.count = 0;
4050 snprintf(name, sizeof(name), "%s##va##SET", var->name);
4051 if (!parser_create_array_setter_proto(parser, varargs, name)) {
4052 ast_delete(varargs);
4053 ast_block_delete(block);
4056 snprintf(name, sizeof(name), "%s##va##GET", var->name);
4057 if (!parser_create_array_getter_proto(parser, varargs, varargs->expression.next, name)) {
4058 ast_delete(varargs);
4059 ast_block_delete(block);
4062 func->varargs = varargs;
4064 func->fixedparams = parser_const_float(parser, vec_size(var->expression.params));
4067 parser->function = func;
4068 if (!parse_block_into(parser, block)) {
4069 ast_block_delete(block);
4073 vec_push(func->blocks, block);
4075 parser->function = old;
4076 if (!parser_leaveblock(parser))
4078 if (vec_size(parser->variables) != PARSER_HT_LOCALS) {
4079 parseerror(parser, "internal error: local scopes left");
4083 if (parser->tok == ';')
4084 return parser_next(parser);
4085 else if (opts.standard == COMPILER_QCC)
4086 parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)");
4090 (void)!parser_leaveblock(parser);
4091 vec_pop(parser->functions);
4092 ast_function_delete(func);
4093 var->constval.vfunc = NULL;
4096 parser->function = old;
4100 static ast_expression *array_accessor_split(
4105 ast_expression *left,
4106 ast_expression *right
4112 lex_ctx ctx = ast_ctx(array);
4114 if (!left || !right) {
4115 if (left) ast_delete(left);
4116 if (right) ast_delete(right);
4120 cmp = ast_binary_new(ctx, INSTR_LT,
4121 (ast_expression*)index,
4122 (ast_expression*)parser_const_float(parser, middle));
4126 parseerror(parser, "internal error: failed to create comparison for array setter");
4130 ifthen = ast_ifthen_new(ctx, (ast_expression*)cmp, left, right);
4132 ast_delete(cmp); /* will delete left and right */
4133 parseerror(parser, "internal error: failed to create conditional jump for array setter");
4137 return (ast_expression*)ifthen;
4140 static ast_expression *array_setter_node(parser_t *parser, ast_value *array, ast_value *index, ast_value *value, size_t from, size_t afterend)
4142 lex_ctx ctx = ast_ctx(array);
4144 if (from+1 == afterend) {
4145 /* set this value */
4148 ast_array_index *subscript;
4150 int assignop = type_store_instr[value->expression.vtype];
4152 if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR)
4153 assignop = INSTR_STORE_V;
4155 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
4159 st = ast_store_new(ctx, assignop, (ast_expression*)subscript, (ast_expression*)value);
4161 ast_delete(subscript);
4165 block = ast_block_new(ctx);
4171 if (!ast_block_add_expr(block, (ast_expression*)st)) {
4176 ret = ast_return_new(ctx, NULL);
4182 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
4187 return (ast_expression*)block;
4189 ast_expression *left, *right;
4190 size_t diff = afterend - from;
4191 size_t middle = from + diff/2;
4192 left = array_setter_node(parser, array, index, value, from, middle);
4193 right = array_setter_node(parser, array, index, value, middle, afterend);
4194 return array_accessor_split(parser, array, index, middle, left, right);
4198 static ast_expression *array_field_setter_node(
4207 lex_ctx ctx = ast_ctx(array);
4209 if (from+1 == afterend) {
4210 /* set this value */
4213 ast_entfield *entfield;
4214 ast_array_index *subscript;
4216 int assignop = type_storep_instr[value->expression.vtype];
4218 if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR)
4219 assignop = INSTR_STOREP_V;
4221 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
4225 subscript->expression.next = ast_type_copy(ast_ctx(subscript), (ast_expression*)subscript);
4226 subscript->expression.vtype = TYPE_FIELD;
4228 entfield = ast_entfield_new_force(ctx,
4229 (ast_expression*)entity,
4230 (ast_expression*)subscript,
4231 (ast_expression*)subscript);
4233 ast_delete(subscript);
4237 st = ast_store_new(ctx, assignop, (ast_expression*)entfield, (ast_expression*)value);
4239 ast_delete(entfield);
4243 block = ast_block_new(ctx);
4249 if (!ast_block_add_expr(block, (ast_expression*)st)) {
4254 ret = ast_return_new(ctx, NULL);
4260 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
4265 return (ast_expression*)block;
4267 ast_expression *left, *right;
4268 size_t diff = afterend - from;
4269 size_t middle = from + diff/2;
4270 left = array_field_setter_node(parser, array, entity, index, value, from, middle);
4271 right = array_field_setter_node(parser, array, entity, index, value, middle, afterend);
4272 return array_accessor_split(parser, array, index, middle, left, right);
4276 static ast_expression *array_getter_node(parser_t *parser, ast_value *array, ast_value *index, size_t from, size_t afterend)
4278 lex_ctx ctx = ast_ctx(array);
4280 if (from+1 == afterend) {
4282 ast_array_index *subscript;
4284 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
4288 ret = ast_return_new(ctx, (ast_expression*)subscript);
4290 ast_delete(subscript);
4294 return (ast_expression*)ret;
4296 ast_expression *left, *right;
4297 size_t diff = afterend - from;
4298 size_t middle = from + diff/2;
4299 left = array_getter_node(parser, array, index, from, middle);
4300 right = array_getter_node(parser, array, index, middle, afterend);
4301 return array_accessor_split(parser, array, index, middle, left, right);
4305 static bool parser_create_array_accessor(parser_t *parser, ast_value *array, const char *funcname, ast_value **out)
4307 ast_function *func = NULL;
4308 ast_value *fval = NULL;
4309 ast_block *body = NULL;
4311 fval = ast_value_new(ast_ctx(array), funcname, TYPE_FUNCTION);
4313 parseerror(parser, "failed to create accessor function value");
4317 func = ast_function_new(ast_ctx(array), funcname, fval);
4320 parseerror(parser, "failed to create accessor function node");
4324 body = ast_block_new(ast_ctx(array));
4326 parseerror(parser, "failed to create block for array accessor");
4332 vec_push(func->blocks, body);
4335 vec_push(parser->accessors, fval);
4340 static ast_value* parser_create_array_setter_proto(parser_t *parser, ast_value *array, const char *funcname)
4342 ast_value *index = NULL;
4343 ast_value *value = NULL;
4347 if (!ast_istype(array->expression.next, ast_value)) {
4348 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4352 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4354 func = fval->constval.vfunc;
4355 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
4357 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4358 value = ast_value_copy((ast_value*)array->expression.next);
4360 if (!index || !value) {
4361 parseerror(parser, "failed to create locals for array accessor");
4364 (void)!ast_value_set_name(value, "value"); /* not important */
4365 vec_push(fval->expression.params, index);
4366 vec_push(fval->expression.params, value);
4368 array->setter = fval;
4371 if (index) ast_delete(index);
4372 if (value) ast_delete(value);
4378 static bool parser_create_array_setter_impl(parser_t *parser, ast_value *array)
4380 ast_expression *root = NULL;
4381 root = array_setter_node(parser, array,
4382 array->setter->expression.params[0],
4383 array->setter->expression.params[1],
4384 0, array->expression.count);
4386 parseerror(parser, "failed to build accessor search tree");
4389 if (!ast_block_add_expr(array->setter->constval.vfunc->blocks[0], root)) {
4396 static bool parser_create_array_setter(parser_t *parser, ast_value *array, const char *funcname)
4398 if (!parser_create_array_setter_proto(parser, array, funcname))
4400 return parser_create_array_setter_impl(parser, array);
4403 static bool parser_create_array_field_setter(parser_t *parser, ast_value *array, const char *funcname)
4405 ast_expression *root = NULL;
4406 ast_value *entity = NULL;
4407 ast_value *index = NULL;
4408 ast_value *value = NULL;
4412 if (!ast_istype(array->expression.next, ast_value)) {
4413 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4417 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4419 func = fval->constval.vfunc;
4420 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
4422 entity = ast_value_new(ast_ctx(array), "entity", TYPE_ENTITY);
4423 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4424 value = ast_value_copy((ast_value*)array->expression.next);
4425 if (!entity || !index || !value) {
4426 parseerror(parser, "failed to create locals for array accessor");
4429 (void)!ast_value_set_name(value, "value"); /* not important */
4430 vec_push(fval->expression.params, entity);
4431 vec_push(fval->expression.params, index);
4432 vec_push(fval->expression.params, value);
4434 root = array_field_setter_node(parser, array, entity, index, value, 0, array->expression.count);
4436 parseerror(parser, "failed to build accessor search tree");
4440 array->setter = fval;
4441 return ast_block_add_expr(func->blocks[0], root);
4443 if (entity) ast_delete(entity);
4444 if (index) ast_delete(index);
4445 if (value) ast_delete(value);
4446 if (root) ast_delete(root);
4452 static ast_value* parser_create_array_getter_proto(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
4454 ast_value *index = NULL;
4458 /* NOTE: checking array->expression.next rather than elemtype since
4459 * for fields elemtype is a temporary fieldtype.
4461 if (!ast_istype(array->expression.next, ast_value)) {
4462 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4466 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4468 func = fval->constval.vfunc;
4469 fval->expression.next = ast_type_copy(ast_ctx(array), elemtype);
4471 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4474 parseerror(parser, "failed to create locals for array accessor");
4477 vec_push(fval->expression.params, index);
4479 array->getter = fval;
4482 if (index) ast_delete(index);
4488 static bool parser_create_array_getter_impl(parser_t *parser, ast_value *array)
4490 ast_expression *root = NULL;
4492 root = array_getter_node(parser, array, array->getter->expression.params[0], 0, array->expression.count);
4494 parseerror(parser, "failed to build accessor search tree");
4497 if (!ast_block_add_expr(array->getter->constval.vfunc->blocks[0], root)) {
4504 static bool parser_create_array_getter(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
4506 if (!parser_create_array_getter_proto(parser, array, elemtype, funcname))
4508 return parser_create_array_getter_impl(parser, array);
4511 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
4512 static ast_value *parse_parameter_list(parser_t *parser, ast_value *var)
4520 bool variadic = false;
4521 ast_value *varparam = NULL;
4522 char *argcounter = NULL;
4524 ctx = parser_ctx(parser);
4526 /* for the sake of less code we parse-in in this function */
4527 if (!parser_next(parser)) {
4528 parseerror(parser, "expected parameter list");
4534 /* parse variables until we hit a closing paren */
4535 while (parser->tok != ')') {
4537 /* there must be commas between them */
4538 if (parser->tok != ',') {
4539 parseerror(parser, "expected comma or end of parameter list");
4542 if (!parser_next(parser)) {
4543 parseerror(parser, "expected parameter");
4549 if (parser->tok == TOKEN_DOTS) {
4550 /* '...' indicates a varargs function */
4552 if (!parser_next(parser) || (parser->tok != ')' && parser->tok != TOKEN_IDENT)) {
4553 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4556 if (parser->tok == TOKEN_IDENT) {
4557 argcounter = util_strdup(parser_tokval(parser));
4558 if (!parser_next(parser) || parser->tok != ')') {
4559 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4566 /* for anything else just parse a typename */
4567 param = parse_typename(parser, NULL, NULL);
4570 vec_push(params, param);
4571 if (param->expression.vtype >= TYPE_VARIANT) {
4572 char tname[1024]; /* typename is reserved in C++ */
4573 ast_type_to_string((ast_expression*)param, tname, sizeof(tname));
4574 parseerror(parser, "type not supported as part of a parameter list: %s", tname);
4577 /* type-restricted varargs */
4578 if (parser->tok == TOKEN_DOTS) {
4580 varparam = vec_last(params);
4582 if (!parser_next(parser) || (parser->tok != ')' && parser->tok != TOKEN_IDENT)) {
4583 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4586 if (parser->tok == TOKEN_IDENT) {
4587 argcounter = util_strdup(parser_tokval(parser));
4588 if (!parser_next(parser) || parser->tok != ')') {
4589 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4597 if (vec_size(params) == 1 && params[0]->expression.vtype == TYPE_VOID)
4601 if (vec_size(params) > 8 && opts.standard == COMPILER_QCC)
4602 (void)!parsewarning(parser, WARN_EXTENSIONS, "more than 8 parameters are not supported by this standard");
4605 if (!parser_next(parser)) {
4606 parseerror(parser, "parse error after typename");
4610 /* now turn 'var' into a function type */
4611 fval = ast_value_new(ctx, "<type()>", TYPE_FUNCTION);
4612 fval->expression.next = (ast_expression*)var;
4614 fval->expression.flags |= AST_FLAG_VARIADIC;
4617 var->expression.params = params;
4618 var->expression.varparam = (ast_expression*)varparam;
4619 var->argcounter = argcounter;
4628 for (i = 0; i < vec_size(params); ++i)
4629 ast_delete(params[i]);
4634 static ast_value *parse_arraysize(parser_t *parser, ast_value *var)
4636 ast_expression *cexp;
4637 ast_value *cval, *tmp;
4640 ctx = parser_ctx(parser);
4642 if (!parser_next(parser)) {
4644 parseerror(parser, "expected array-size");
4648 cexp = parse_expression_leave(parser, true, false, false);
4650 if (!cexp || !ast_istype(cexp, ast_value)) {
4654 parseerror(parser, "expected array-size as constant positive integer");
4657 cval = (ast_value*)cexp;
4659 tmp = ast_value_new(ctx, "<type[]>", TYPE_ARRAY);
4660 tmp->expression.next = (ast_expression*)var;
4663 if (cval->expression.vtype == TYPE_INTEGER)
4664 tmp->expression.count = cval->constval.vint;
4665 else if (cval->expression.vtype == TYPE_FLOAT)
4666 tmp->expression.count = cval->constval.vfloat;
4670 parseerror(parser, "array-size must be a positive integer constant");
4675 if (parser->tok != ']') {
4677 parseerror(parser, "expected ']' after array-size");
4680 if (!parser_next(parser)) {
4682 parseerror(parser, "error after parsing array size");
4688 /* Parse a complete typename.
4689 * for single-variables (ie. function parameters or typedefs) storebase should be NULL
4690 * but when parsing variables separated by comma
4691 * 'storebase' should point to where the base-type should be kept.
4692 * The base type makes up every bit of type information which comes *before* the
4695 * The following will be parsed in its entirety:
4697 * The 'basetype' in this case is 'void()'
4698 * and if there's a comma after it, say:
4700 * then the type-information 'void()' can be stored in 'storebase'
4702 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef)
4704 ast_value *var, *tmp;
4707 const char *name = NULL;
4708 bool isfield = false;
4709 bool wasarray = false;
4710 size_t morefields = 0;
4712 ctx = parser_ctx(parser);
4714 /* types may start with a dot */
4715 if (parser->tok == '.') {
4717 /* if we parsed a dot we need a typename now */
4718 if (!parser_next(parser)) {
4719 parseerror(parser, "expected typename for field definition");
4723 /* Further dots are handled seperately because they won't be part of the
4726 while (parser->tok == '.') {
4728 if (!parser_next(parser)) {
4729 parseerror(parser, "expected typename for field definition");
4734 if (parser->tok == TOKEN_IDENT)
4735 cached_typedef = parser_find_typedef(parser, parser_tokval(parser), 0);
4736 if (!cached_typedef && parser->tok != TOKEN_TYPENAME) {
4737 parseerror(parser, "expected typename");
4741 /* generate the basic type value */
4742 if (cached_typedef) {
4743 var = ast_value_copy(cached_typedef);
4744 ast_value_set_name(var, "<type(from_def)>");
4746 var = ast_value_new(ctx, "<type>", parser_token(parser)->constval.t);
4748 for (; morefields; --morefields) {
4749 tmp = ast_value_new(ctx, "<.type>", TYPE_FIELD);
4750 tmp->expression.next = (ast_expression*)var;
4754 /* do not yet turn into a field - remember:
4755 * .void() foo; is a field too
4756 * .void()() foo; is a function
4760 if (!parser_next(parser)) {
4762 parseerror(parser, "parse error after typename");
4766 /* an opening paren now starts the parameter-list of a function
4767 * this is where original-QC has parameter lists.
4768 * We allow a single parameter list here.
4769 * Much like fteqcc we don't allow `float()() x`
4771 if (parser->tok == '(') {
4772 var = parse_parameter_list(parser, var);
4777 /* store the base if requested */
4779 *storebase = ast_value_copy(var);
4781 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
4782 tmp->expression.next = (ast_expression*)*storebase;
4787 /* there may be a name now */
4788 if (parser->tok == TOKEN_IDENT) {
4789 name = util_strdup(parser_tokval(parser));
4791 if (!parser_next(parser)) {
4793 parseerror(parser, "error after variable or field declaration");
4798 /* now this may be an array */
4799 if (parser->tok == '[') {
4801 var = parse_arraysize(parser, var);
4806 /* This is the point where we can turn it into a field */
4808 /* turn it into a field if desired */
4809 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
4810 tmp->expression.next = (ast_expression*)var;
4814 /* now there may be function parens again */
4815 if (parser->tok == '(' && opts.standard == COMPILER_QCC)
4816 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4817 if (parser->tok == '(' && wasarray)
4818 parseerror(parser, "arrays as part of a return type is not supported");
4819 while (parser->tok == '(') {
4820 var = parse_parameter_list(parser, var);
4828 /* finally name it */
4830 if (!ast_value_set_name(var, name)) {
4832 parseerror(parser, "internal error: failed to set name");
4835 /* free the name, ast_value_set_name duplicates */
4842 static bool parse_typedef(parser_t *parser)
4844 ast_value *typevar, *oldtype;
4845 ast_expression *old;
4847 typevar = parse_typename(parser, NULL, NULL);
4852 if ( (old = parser_find_var(parser, typevar->name)) ) {
4853 parseerror(parser, "cannot define a type with the same name as a variable: %s\n"
4854 " -> `%s` has been declared here: %s:%i",
4855 typevar->name, ast_ctx(old).file, ast_ctx(old).line);
4856 ast_delete(typevar);
4860 if ( (oldtype = parser_find_typedef(parser, typevar->name, vec_last(parser->_blocktypedefs))) ) {
4861 parseerror(parser, "type `%s` has already been declared here: %s:%i",
4862 typevar->name, ast_ctx(oldtype).file, ast_ctx(oldtype).line);
4863 ast_delete(typevar);
4867 vec_push(parser->_typedefs, typevar);
4868 util_htset(vec_last(parser->typedefs), typevar->name, typevar);
4870 if (parser->tok != ';') {
4871 parseerror(parser, "expected semicolon after typedef");
4874 if (!parser_next(parser)) {
4875 parseerror(parser, "parse error after typedef");
4882 static const char *cvq_to_str(int cvq) {
4884 case CV_NONE: return "none";
4885 case CV_VAR: return "`var`";
4886 case CV_CONST: return "`const`";
4887 default: return "<INVALID>";
4891 static bool parser_check_qualifiers(parser_t *parser, const ast_value *var, const ast_value *proto)
4894 if (proto->cvq != var->cvq) {
4895 if (!(proto->cvq == CV_CONST && var->cvq == CV_NONE &&
4896 !OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
4897 parser->tok == '='))
4899 return !parsewarning(parser, WARN_DIFFERENT_QUALIFIERS,
4900 "`%s` declared with different qualifiers: %s\n"
4901 " -> previous declaration here: %s:%i uses %s",
4902 var->name, cvq_to_str(var->cvq),
4903 ast_ctx(proto).file, ast_ctx(proto).line,
4904 cvq_to_str(proto->cvq));
4907 av = (var ->expression.flags & AST_FLAG_NORETURN);
4908 ao = (proto->expression.flags & AST_FLAG_NORETURN);
4910 return !parsewarning(parser, WARN_DIFFERENT_ATTRIBUTES,
4911 "`%s` declared with different attributes%s\n"
4912 " -> previous declaration here: %s:%i",
4913 var->name, (av ? ": noreturn" : ""),
4914 ast_ctx(proto).file, ast_ctx(proto).line,
4915 (ao ? ": noreturn" : ""));
4920 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)
4924 ast_expression *old;
4928 ast_value *basetype = NULL;
4930 bool isparam = false;
4931 bool isvector = false;
4932 bool cleanvar = true;
4933 bool wasarray = false;
4937 if (!localblock && is_static)
4938 parseerror(parser, "`static` qualifier is not supported in global scope");
4940 /* get the first complete variable */
4941 var = parse_typename(parser, &basetype, cached_typedef);
4944 ast_delete(basetype);
4952 /* Part 0: finish the type */
4953 if (parser->tok == '(') {
4954 if (opts.standard == COMPILER_QCC)
4955 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4956 var = parse_parameter_list(parser, var);
4962 /* we only allow 1-dimensional arrays */
4963 if (parser->tok == '[') {
4965 var = parse_arraysize(parser, var);
4971 if (parser->tok == '(' && wasarray) {
4972 parseerror(parser, "arrays as part of a return type is not supported");
4973 /* we'll still parse the type completely for now */
4975 /* for functions returning functions */
4976 while (parser->tok == '(') {
4977 if (opts.standard == COMPILER_QCC)
4978 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4979 var = parse_parameter_list(parser, var);
4986 var->cvq = qualifier;
4987 var->expression.flags |= qflags;
4988 if (var->expression.flags & AST_FLAG_DEPRECATED)
4989 var->desc = vstring;
4992 * check for validity: (end_sys_..., multiple-definitions, prototypes, ...)
4993 * Also: if there was a prototype, `var` will be deleted and set to `proto` which
4994 * is then filled with the previous definition and the parameter-names replaced.
4996 if (!strcmp(var->name, "nil")) {
4997 if (OPTS_FLAG(UNTYPED_NIL)) {
4998 if (!localblock || !OPTS_FLAG(PERMISSIVE))
4999 parseerror(parser, "name `nil` not allowed (try -fpermissive)");
5001 (void)!parsewarning(parser, WARN_RESERVED_NAMES, "variable name `nil` is reserved");
5004 /* Deal with end_sys_ vars */
5006 if (!strcmp(var->name, "end_sys_globals")) {
5008 parser->crc_globals = vec_size(parser->globals);
5011 else if (!strcmp(var->name, "end_sys_fields")) {
5013 parser->crc_fields = vec_size(parser->fields);
5016 if (was_end && var->expression.vtype == TYPE_FIELD) {
5017 if (parsewarning(parser, WARN_END_SYS_FIELDS,
5018 "global '%s' hint should not be a field",
5019 parser_tokval(parser)))
5026 if (!nofields && var->expression.vtype == TYPE_FIELD)
5028 /* deal with field declarations */
5029 old = parser_find_field(parser, var->name);
5031 if (parsewarning(parser, WARN_FIELD_REDECLARED, "field `%s` already declared here: %s:%i",
5032 var->name, ast_ctx(old).file, (int)ast_ctx(old).line))
5041 parseerror(parser, "field `%s` already declared here: %s:%i",
5042 var->name, ast_ctx(old).file, ast_ctx(old).line);
5047 if ((opts.standard == COMPILER_QCC || opts.standard == COMPILER_FTEQCC) &&
5048 (old = parser_find_global(parser, var->name)))
5050 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
5051 parseerror(parser, "field `%s` already declared here: %s:%i",
5052 var->name, ast_ctx(old).file, ast_ctx(old).line);
5059 /* deal with other globals */
5060 old = parser_find_global(parser, var->name);
5061 if (old && var->expression.vtype == TYPE_FUNCTION && old->expression.vtype == TYPE_FUNCTION)
5063 /* This is a function which had a prototype */
5064 if (!ast_istype(old, ast_value)) {
5065 parseerror(parser, "internal error: prototype is not an ast_value");
5069 proto = (ast_value*)old;
5070 proto->desc = var->desc;
5071 if (!ast_compare_type((ast_expression*)proto, (ast_expression*)var)) {
5072 parseerror(parser, "conflicting types for `%s`, previous declaration was here: %s:%i",
5074 ast_ctx(proto).file, ast_ctx(proto).line);
5078 /* we need the new parameter-names */
5079 for (i = 0; i < vec_size(proto->expression.params); ++i)
5080 ast_value_set_name(proto->expression.params[i], var->expression.params[i]->name);
5081 if (!parser_check_qualifiers(parser, var, proto)) {
5088 proto->expression.flags |= var->expression.flags;
5096 if (parsewarning(parser, WARN_DOUBLE_DECLARATION,
5097 "global `%s` already declared here: %s:%i",
5098 var->name, ast_ctx(old).file, ast_ctx(old).line))
5103 proto = (ast_value*)old;
5104 if (!ast_istype(old, ast_value)) {
5105 parseerror(parser, "internal error: not an ast_value");
5110 if (!parser_check_qualifiers(parser, var, proto)) {
5115 proto->expression.flags |= var->expression.flags;
5119 if (opts.standard == COMPILER_QCC &&
5120 (old = parser_find_field(parser, var->name)))
5122 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
5123 parseerror(parser, "global `%s` already declared here: %s:%i",
5124 var->name, ast_ctx(old).file, ast_ctx(old).line);
5131 else /* it's not a global */
5133 old = parser_find_local(parser, var->name, vec_size(parser->variables)-1, &isparam);
5134 if (old && !isparam) {
5135 parseerror(parser, "local `%s` already declared here: %s:%i",
5136 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
5140 old = parser_find_local(parser, var->name, 0, &isparam);
5141 if (old && isparam) {
5142 if (parsewarning(parser, WARN_LOCAL_SHADOWS,
5143 "local `%s` is shadowing a parameter", var->name))
5145 parseerror(parser, "local `%s` already declared here: %s:%i",
5146 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
5150 if (opts.standard != COMPILER_GMQCC) {
5158 /* in a noref section we simply bump the usecount */
5159 if (noref || parser->noref)
5163 * Create the global/local, and deal with vector types.
5166 if (var->expression.vtype == TYPE_VECTOR)
5168 else if (var->expression.vtype == TYPE_FIELD &&
5169 var->expression.next->expression.vtype == TYPE_VECTOR)
5173 if (!create_vector_members(var, me)) {
5180 /* deal with global variables, fields, functions */
5181 if (!nofields && var->expression.vtype == TYPE_FIELD && parser->tok != '=') {
5182 var->isfield = true;
5183 vec_push(parser->fields, (ast_expression*)var);
5184 util_htset(parser->htfields, var->name, var);
5186 for (i = 0; i < 3; ++i) {
5187 vec_push(parser->fields, (ast_expression*)me[i]);
5188 util_htset(parser->htfields, me[i]->name, me[i]);
5193 parser_addglobal(parser, var->name, (ast_expression*)var);
5195 for (i = 0; i < 3; ++i) {
5196 parser_addglobal(parser, me[i]->name, (ast_expression*)me[i]);
5202 /* a static adds itself to be generated like any other global
5203 * but is added to the local namespace instead
5205 char *defname = NULL;
5206 size_t prefix_len, ln;
5208 ln = strlen(parser->function->name);
5209 vec_append(defname, ln, parser->function->name);
5211 vec_append(defname, 2, "::");
5212 /* remember the length up to here */
5213 prefix_len = vec_size(defname);
5215 /* Add it to the local scope */
5216 util_htset(vec_last(parser->variables), var->name, (void*)var);
5220 vec_last(parser->correct_variables),
5221 &vec_last(parser->correct_variables_score),
5225 /* now rename the global */
5226 ln = strlen(var->name);
5227 vec_append(defname, ln, var->name);
5228 ast_value_set_name(var, defname);
5230 /* push it to the to-be-generated globals */
5231 vec_push(parser->globals, (ast_expression*)var);
5233 /* same game for the vector members */
5235 for (i = 0; i < 3; ++i) {
5236 util_htset(vec_last(parser->variables), me[i]->name, (void*)(me[i]));
5240 vec_last(parser->correct_variables),
5241 &vec_last(parser->correct_variables_score),
5245 vec_shrinkto(defname, prefix_len);
5246 ln = strlen(me[i]->name);
5247 vec_append(defname, ln, me[i]->name);
5248 ast_member_set_name(me[i], defname);
5250 vec_push(parser->globals, (ast_expression*)me[i]);
5255 vec_push(localblock->locals, var);
5256 parser_addlocal(parser, var->name, (ast_expression*)var);
5258 for (i = 0; i < 3; ++i) {
5259 parser_addlocal(parser, me[i]->name, (ast_expression*)me[i]);
5260 ast_block_collect(localblock, (ast_expression*)me[i]);
5266 me[0] = me[1] = me[2] = NULL;
5271 if (var->expression.vtype == TYPE_ARRAY) {
5273 snprintf(name, sizeof(name), "%s##SET", var->name);
5274 if (!parser_create_array_setter(parser, var, name))
5276 snprintf(name, sizeof(name), "%s##GET", var->name);
5277 if (!parser_create_array_getter(parser, var, var->expression.next, name))
5280 else if (!localblock && !nofields &&
5281 var->expression.vtype == TYPE_FIELD &&
5282 var->expression.next->expression.vtype == TYPE_ARRAY)
5285 ast_expression *telem;
5287 ast_value *array = (ast_value*)var->expression.next;
5289 if (!ast_istype(var->expression.next, ast_value)) {
5290 parseerror(parser, "internal error: field element type must be an ast_value");
5294 snprintf(name, sizeof(name), "%s##SETF", var->name);
5295 if (!parser_create_array_field_setter(parser, array, name))
5298 telem = ast_type_copy(ast_ctx(var), array->expression.next);
5299 tfield = ast_value_new(ast_ctx(var), "<.type>", TYPE_FIELD);
5300 tfield->expression.next = telem;
5301 snprintf(name, sizeof(name), "%s##GETFP", var->name);
5302 if (!parser_create_array_getter(parser, array, (ast_expression*)tfield, name)) {
5310 if (parser->tok == ';') {
5311 ast_delete(basetype);
5312 if (!parser_next(parser)) {
5313 parseerror(parser, "error after variable declaration");
5319 if (parser->tok == ',')
5323 if (!var || (!localblock && !nofields && basetype->expression.vtype == TYPE_FIELD)) {
5326 parseerror(parser, "missing comma or semicolon while parsing variables");
5330 if (localblock && opts.standard == COMPILER_QCC) {
5331 if (parsewarning(parser, WARN_LOCAL_CONSTANTS,
5332 "initializing expression turns variable `%s` into a constant in this standard",
5339 if (parser->tok != '{') {
5340 if (parser->tok != '=') {
5341 parseerror(parser, "missing semicolon or initializer, got: `%s`", parser_tokval(parser));
5345 if (!parser_next(parser)) {
5346 parseerror(parser, "error parsing initializer");
5350 else if (opts.standard == COMPILER_QCC) {
5351 parseerror(parser, "expected '=' before function body in this standard");
5354 if (parser->tok == '#') {
5355 ast_function *func = NULL;
5358 parseerror(parser, "cannot declare builtins within functions");
5361 if (var->expression.vtype != TYPE_FUNCTION) {
5362 parseerror(parser, "unexpected builtin number, '%s' is not a function", var->name);
5365 if (!parser_next(parser)) {
5366 parseerror(parser, "expected builtin number");
5369 if (parser->tok != TOKEN_INTCONST) {
5370 parseerror(parser, "builtin number must be an integer constant");
5373 if (parser_token(parser)->constval.i < 0) {
5374 parseerror(parser, "builtin number must be an integer greater than zero");
5378 if (var->hasvalue) {
5379 (void)!parsewarning(parser, WARN_DOUBLE_DECLARATION,
5380 "builtin `%s` has already been defined\n"
5381 " -> previous declaration here: %s:%i",
5382 var->name, ast_ctx(var).file, (int)ast_ctx(var).line);
5386 func = ast_function_new(ast_ctx(var), var->name, var);
5388 parseerror(parser, "failed to allocate function for `%s`", var->name);
5391 vec_push(parser->functions, func);
5393 func->builtin = -parser_token(parser)->constval.i-1;
5396 if (!parser_next(parser)) {
5397 parseerror(parser, "expected comma or semicolon");
5399 ast_function_delete(func);
5400 var->constval.vfunc = NULL;
5404 else if (parser->tok == '{' || parser->tok == '[')
5407 parseerror(parser, "cannot declare functions within functions");
5412 ast_ctx(proto) = parser_ctx(parser);
5414 if (!parse_function_body(parser, var))
5416 ast_delete(basetype);
5417 for (i = 0; i < vec_size(parser->gotos); ++i)
5418 parseerror(parser, "undefined label: `%s`", parser->gotos[i]->name);
5419 vec_free(parser->gotos);
5420 vec_free(parser->labels);
5423 ast_expression *cexp;
5426 cexp = parse_expression_leave(parser, true, false, false);
5431 cval = (ast_value*)cexp;
5432 if (cval != parser->nil &&
5433 (!ast_istype(cval, ast_value) || ((!cval->hasvalue || cval->cvq != CV_CONST) && !cval->isfield))
5436 parseerror(parser, "cannot initialize a global constant variable with a non-constant expression");
5440 if (!OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
5441 qualifier != CV_VAR)
5443 var->cvq = CV_CONST;
5445 if (cval == parser->nil)
5446 var->expression.flags |= AST_FLAG_INITIALIZED;
5449 var->hasvalue = true;
5450 if (cval->expression.vtype == TYPE_STRING)
5451 var->constval.vstring = parser_strdup(cval->constval.vstring);
5452 else if (cval->expression.vtype == TYPE_FIELD)
5453 var->constval.vfield = cval;
5455 memcpy(&var->constval, &cval->constval, sizeof(var->constval));
5461 shunt sy = { NULL, NULL };
5464 vec_push(sy.out, syexp(ast_ctx(var), (ast_expression*)var));
5465 vec_push(sy.out, syexp(ast_ctx(cexp), (ast_expression*)cexp));
5466 vec_push(sy.ops, syop(ast_ctx(var), parser->assign_op));
5467 if (!parser_sy_apply_operator(parser, &sy))
5470 if (vec_size(sy.out) != 1 && vec_size(sy.ops) != 0)
5471 parseerror(parser, "internal error: leaked operands");
5472 if (!ast_block_add_expr(localblock, (ast_expression*)sy.out[0].out))
5482 if (parser->tok == ',') {
5483 if (!parser_next(parser)) {
5484 parseerror(parser, "expected another variable");
5488 if (parser->tok != TOKEN_IDENT) {
5489 parseerror(parser, "expected another variable");
5492 var = ast_value_copy(basetype);
5494 ast_value_set_name(var, parser_tokval(parser));
5495 if (!parser_next(parser)) {
5496 parseerror(parser, "error parsing variable declaration");
5502 if (parser->tok != ';') {
5503 parseerror(parser, "missing semicolon after variables");
5507 if (!parser_next(parser)) {
5508 parseerror(parser, "parse error after variable declaration");
5512 ast_delete(basetype);
5516 if (cleanvar && var)
5518 ast_delete(basetype);
5522 ast_delete(basetype);
5523 if (cleanvar && var)
5525 if (me[0]) ast_member_delete(me[0]);
5526 if (me[1]) ast_member_delete(me[1]);
5527 if (me[2]) ast_member_delete(me[2]);
5531 static bool parser_global_statement(parser_t *parser)
5535 bool is_static = false;
5536 uint32_t qflags = 0;
5537 ast_value *istype = NULL;
5538 char *vstring = NULL;
5540 if (parser->tok == TOKEN_IDENT)
5541 istype = parser_find_typedef(parser, parser_tokval(parser), 0);
5543 if (istype || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
5545 return parse_variable(parser, NULL, false, CV_NONE, istype, false, false, 0, NULL);
5547 else if (parse_qualifiers(parser, false, &cvq, &noref, &is_static, &qflags, &vstring))
5549 if (cvq == CV_WRONG)
5551 return parse_variable(parser, NULL, true, cvq, NULL, noref, is_static, qflags, vstring);
5553 else if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "enum"))
5555 return parse_enum(parser);
5557 else if (parser->tok == TOKEN_KEYWORD)
5559 if (!strcmp(parser_tokval(parser), "typedef")) {
5560 if (!parser_next(parser)) {
5561 parseerror(parser, "expected type definition after 'typedef'");
5564 return parse_typedef(parser);
5566 parseerror(parser, "unrecognized keyword `%s`", parser_tokval(parser));
5569 else if (parser->tok == '#')
5571 return parse_pragma(parser);
5573 else if (parser->tok == '$')
5575 if (!parser_next(parser)) {
5576 parseerror(parser, "parse error");
5582 parseerror(parser, "unexpected token: %s", parser->lex->tok.value);
5588 static uint16_t progdefs_crc_sum(uint16_t old, const char *str)
5590 return util_crc16(old, str, strlen(str));
5593 static void progdefs_crc_file(const char *str)
5595 /* write to progdefs.h here */
5599 static uint16_t progdefs_crc_both(uint16_t old, const char *str)
5601 old = progdefs_crc_sum(old, str);
5602 progdefs_crc_file(str);
5606 static void generate_checksum(parser_t *parser)
5608 uint16_t crc = 0xFFFF;
5612 crc = progdefs_crc_both(crc, "\n/* file generated by qcc, do not modify */\n\ntypedef struct\n{");
5613 crc = progdefs_crc_sum(crc, "\tint\tpad[28];\n");
5615 progdefs_crc_file("\tint\tpad;\n");
5616 progdefs_crc_file("\tint\tofs_return[3];\n");
5617 progdefs_crc_file("\tint\tofs_parm0[3];\n");
5618 progdefs_crc_file("\tint\tofs_parm1[3];\n");
5619 progdefs_crc_file("\tint\tofs_parm2[3];\n");
5620 progdefs_crc_file("\tint\tofs_parm3[3];\n");
5621 progdefs_crc_file("\tint\tofs_parm4[3];\n");
5622 progdefs_crc_file("\tint\tofs_parm5[3];\n");
5623 progdefs_crc_file("\tint\tofs_parm6[3];\n");
5624 progdefs_crc_file("\tint\tofs_parm7[3];\n");
5626 for (i = 0; i < parser->crc_globals; ++i) {
5627 if (!ast_istype(parser->globals[i], ast_value))
5629 value = (ast_value*)(parser->globals[i]);
5630 switch (value->expression.vtype) {
5631 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
5632 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
5633 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
5634 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
5636 crc = progdefs_crc_both(crc, "\tint\t");
5639 crc = progdefs_crc_both(crc, value->name);
5640 crc = progdefs_crc_both(crc, ";\n");
5642 crc = progdefs_crc_both(crc, "} globalvars_t;\n\ntypedef struct\n{\n");
5643 for (i = 0; i < parser->crc_fields; ++i) {
5644 if (!ast_istype(parser->fields[i], ast_value))
5646 value = (ast_value*)(parser->fields[i]);
5647 switch (value->expression.next->expression.vtype) {
5648 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
5649 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
5650 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
5651 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
5653 crc = progdefs_crc_both(crc, "\tint\t");
5656 crc = progdefs_crc_both(crc, value->name);
5657 crc = progdefs_crc_both(crc, ";\n");
5659 crc = progdefs_crc_both(crc, "} entvars_t;\n\n");
5664 static parser_t *parser;
5671 parser = (parser_t*)mem_a(sizeof(parser_t));
5675 memset(parser, 0, sizeof(*parser));
5677 for (i = 0; i < operator_count; ++i) {
5678 if (operators[i].id == opid1('=')) {
5679 parser->assign_op = operators+i;
5683 if (!parser->assign_op) {
5684 printf("internal error: initializing parser: failed to find assign operator\n");
5689 vec_push(parser->variables, parser->htfields = util_htnew(PARSER_HT_SIZE));
5690 vec_push(parser->variables, parser->htglobals = util_htnew(PARSER_HT_SIZE));
5691 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
5692 vec_push(parser->_blocktypedefs, 0);
5695 vec_push(parser->correct_variables, correct_trie_new());
5696 vec_push(parser->correct_variables_score, NULL);
5698 empty_ctx.file = "<internal>";
5700 parser->nil = ast_value_new(empty_ctx, "nil", TYPE_NIL);
5701 parser->nil->cvq = CV_CONST;
5702 if (OPTS_FLAG(UNTYPED_NIL))
5703 util_htset(parser->htglobals, "nil", (void*)parser->nil);
5705 parser->max_param_count = 1;
5707 parser->const_vec[0] = ast_value_new(empty_ctx, "<vector.x>", TYPE_NOEXPR);
5708 parser->const_vec[1] = ast_value_new(empty_ctx, "<vector.y>", TYPE_NOEXPR);
5709 parser->const_vec[2] = ast_value_new(empty_ctx, "<vector.z>", TYPE_NOEXPR);
5711 if (opts.add_info) {
5712 parser->reserved_version = ast_value_new(empty_ctx, "reserved:version", TYPE_STRING);
5713 parser->reserved_version->cvq = CV_CONST;
5714 parser->reserved_version->hasvalue = true;
5715 parser->reserved_version->expression.flags |= AST_FLAG_INCLUDE_DEF;
5716 parser->reserved_version->constval.vstring = util_strdup(GMQCC_FULL_VERSION_STRING);
5718 parser->reserved_version = NULL;
5723 bool parser_compile()
5725 /* initial lexer/parser state */
5726 parser->lex->flags.noops = true;
5728 if (parser_next(parser))
5730 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
5732 if (!parser_global_statement(parser)) {
5733 if (parser->tok == TOKEN_EOF)
5734 parseerror(parser, "unexpected eof");
5735 else if (compile_errors)
5736 parseerror(parser, "there have been errors, bailing out");
5737 lex_close(parser->lex);
5743 parseerror(parser, "parse error");
5744 lex_close(parser->lex);
5749 lex_close(parser->lex);
5752 return !compile_errors;
5755 bool parser_compile_file(const char *filename)
5757 parser->lex = lex_open(filename);
5759 con_err("failed to open file \"%s\"\n", filename);
5762 return parser_compile();
5765 bool parser_compile_string(const char *name, const char *str, size_t len)
5767 parser->lex = lex_open_string(str, len, name);
5769 con_err("failed to create lexer for string \"%s\"\n", name);
5772 return parser_compile();
5775 void parser_cleanup()
5778 for (i = 0; i < vec_size(parser->accessors); ++i) {
5779 ast_delete(parser->accessors[i]->constval.vfunc);
5780 parser->accessors[i]->constval.vfunc = NULL;
5781 ast_delete(parser->accessors[i]);
5783 for (i = 0; i < vec_size(parser->functions); ++i) {
5784 ast_delete(parser->functions[i]);
5786 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
5787 ast_delete(parser->imm_vector[i]);
5789 for (i = 0; i < vec_size(parser->imm_string); ++i) {
5790 ast_delete(parser->imm_string[i]);
5792 for (i = 0; i < vec_size(parser->imm_float); ++i) {
5793 ast_delete(parser->imm_float[i]);
5795 for (i = 0; i < vec_size(parser->fields); ++i) {
5796 ast_delete(parser->fields[i]);
5798 for (i = 0; i < vec_size(parser->globals); ++i) {
5799 ast_delete(parser->globals[i]);
5801 vec_free(parser->accessors);
5802 vec_free(parser->functions);
5803 vec_free(parser->imm_vector);
5804 vec_free(parser->imm_string);
5805 vec_free(parser->imm_float);
5806 vec_free(parser->globals);
5807 vec_free(parser->fields);
5809 for (i = 0; i < vec_size(parser->variables); ++i)
5810 util_htdel(parser->variables[i]);
5811 vec_free(parser->variables);
5812 vec_free(parser->_blocklocals);
5813 vec_free(parser->_locals);
5816 for (i = 0; i < vec_size(parser->correct_variables); ++i) {
5817 correct_del(parser->correct_variables[i], parser->correct_variables_score[i]);
5819 vec_free(parser->correct_variables);
5820 vec_free(parser->correct_variables_score);
5823 for (i = 0; i < vec_size(parser->_typedefs); ++i)
5824 ast_delete(parser->_typedefs[i]);
5825 vec_free(parser->_typedefs);
5826 for (i = 0; i < vec_size(parser->typedefs); ++i)
5827 util_htdel(parser->typedefs[i]);
5828 vec_free(parser->typedefs);
5829 vec_free(parser->_blocktypedefs);
5831 vec_free(parser->_block_ctx);
5833 vec_free(parser->labels);
5834 vec_free(parser->gotos);
5835 vec_free(parser->breaks);
5836 vec_free(parser->continues);
5838 ast_value_delete(parser->nil);
5840 ast_value_delete(parser->const_vec[0]);
5841 ast_value_delete(parser->const_vec[1]);
5842 ast_value_delete(parser->const_vec[2]);
5847 bool parser_finish(const char *output)
5853 if (compile_errors) {
5854 con_out("*** there were compile errors\n");
5858 ir = ir_builder_new("gmqcc_out");
5860 con_out("failed to allocate builder\n");
5864 for (i = 0; i < vec_size(parser->fields); ++i) {
5867 if (!ast_istype(parser->fields[i], ast_value))
5869 field = (ast_value*)parser->fields[i];
5870 hasvalue = field->hasvalue;
5871 field->hasvalue = false;
5872 if (!ast_global_codegen((ast_value*)field, ir, true)) {
5873 con_out("failed to generate field %s\n", field->name);
5874 ir_builder_delete(ir);
5879 ast_expression *subtype;
5880 field->hasvalue = true;
5881 subtype = field->expression.next;
5882 ifld = ir_builder_create_field(ir, field->name, subtype->expression.vtype);
5883 if (subtype->expression.vtype == TYPE_FIELD)
5884 ifld->fieldtype = subtype->expression.next->expression.vtype;
5885 else if (subtype->expression.vtype == TYPE_FUNCTION)
5886 ifld->outtype = subtype->expression.next->expression.vtype;
5887 (void)!ir_value_set_field(field->ir_v, ifld);
5890 for (i = 0; i < vec_size(parser->globals); ++i) {
5892 if (!ast_istype(parser->globals[i], ast_value))
5894 asvalue = (ast_value*)(parser->globals[i]);
5895 if (!asvalue->uses && !asvalue->hasvalue && asvalue->expression.vtype != TYPE_FUNCTION) {
5896 retval = retval && !genwarning(ast_ctx(asvalue), WARN_UNUSED_VARIABLE,
5897 "unused global: `%s`", asvalue->name);
5899 if (!ast_global_codegen(asvalue, ir, false)) {
5900 con_out("failed to generate global %s\n", asvalue->name);
5901 ir_builder_delete(ir);
5905 /* Build function vararg accessor ast tree now before generating
5906 * immediates, because the accessors may add new immediates
5908 for (i = 0; i < vec_size(parser->functions); ++i) {
5909 ast_function *f = parser->functions[i];
5911 if (parser->max_param_count > vec_size(f->vtype->expression.params)) {
5912 f->varargs->expression.count = parser->max_param_count - vec_size(f->vtype->expression.params);
5913 if (!parser_create_array_setter_impl(parser, f->varargs)) {
5914 con_out("failed to generate vararg setter for %s\n", f->name);
5915 ir_builder_delete(ir);
5918 if (!parser_create_array_getter_impl(parser, f->varargs)) {
5919 con_out("failed to generate vararg getter for %s\n", f->name);
5920 ir_builder_delete(ir);
5924 ast_delete(f->varargs);
5929 /* Now we can generate immediates */
5930 for (i = 0; i < vec_size(parser->imm_float); ++i) {
5931 if (!ast_global_codegen(parser->imm_float[i], ir, false)) {
5932 con_out("failed to generate global %s\n", parser->imm_float[i]->name);
5933 ir_builder_delete(ir);
5937 for (i = 0; i < vec_size(parser->imm_string); ++i) {
5938 if (!ast_global_codegen(parser->imm_string[i], ir, false)) {
5939 con_out("failed to generate global %s\n", parser->imm_string[i]->name);
5940 ir_builder_delete(ir);
5944 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
5945 if (!ast_global_codegen(parser->imm_vector[i], ir, false)) {
5946 con_out("failed to generate global %s\n", parser->imm_vector[i]->name);
5947 ir_builder_delete(ir);
5951 for (i = 0; i < vec_size(parser->globals); ++i) {
5953 if (!ast_istype(parser->globals[i], ast_value))
5955 asvalue = (ast_value*)(parser->globals[i]);
5956 if (!(asvalue->expression.flags & AST_FLAG_INITIALIZED))
5958 if (asvalue->cvq == CV_CONST && !asvalue->hasvalue)
5959 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_CONSTANT,
5960 "uninitialized constant: `%s`",
5962 else if ((asvalue->cvq == CV_NONE || asvalue->cvq == CV_CONST) && !asvalue->hasvalue)
5963 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_GLOBAL,
5964 "uninitialized global: `%s`",
5967 if (!ast_generate_accessors(asvalue, ir)) {
5968 ir_builder_delete(ir);
5972 for (i = 0; i < vec_size(parser->fields); ++i) {
5974 asvalue = (ast_value*)(parser->fields[i]->expression.next);
5976 if (!ast_istype((ast_expression*)asvalue, ast_value))
5978 if (asvalue->expression.vtype != TYPE_ARRAY)
5980 if (!ast_generate_accessors(asvalue, ir)) {
5981 ir_builder_delete(ir);
5985 if (parser->reserved_version &&
5986 !ast_global_codegen(parser->reserved_version, ir, false))
5988 con_out("failed to generate reserved::version");
5989 ir_builder_delete(ir);
5992 for (i = 0; i < vec_size(parser->functions); ++i) {
5993 ast_function *f = parser->functions[i];
5994 if (!ast_function_codegen(f, ir)) {
5995 con_out("failed to generate function %s\n", f->name);
5996 ir_builder_delete(ir);
6001 ir_builder_dump(ir, con_out);
6002 for (i = 0; i < vec_size(parser->functions); ++i) {
6003 if (!ir_function_finalize(parser->functions[i]->ir_func)) {
6004 con_out("failed to finalize function %s\n", parser->functions[i]->name);
6005 ir_builder_delete(ir);
6010 if (compile_Werrors) {
6011 con_out("*** there were warnings treated as errors\n");
6012 compile_show_werrors();
6018 ir_builder_dump(ir, con_out);
6020 generate_checksum(parser);
6022 if (!ir_builder_generate(ir, output)) {
6023 con_out("*** failed to generate output file\n");
6024 ir_builder_delete(ir);
6029 ir_builder_delete(ir);