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))
1454 if (paramcount < vec_size(fun->expression.params))
1457 va_count = paramcount - vec_size(fun->expression.params);
1458 call->va_count = (ast_expression*)parser_const_float(parser, (double)va_count);
1462 /* overwrite fid, the function, with a call */
1463 sy->out[fid] = syexp(call->expression.node.context, (ast_expression*)call);
1465 if (fun->expression.vtype != TYPE_FUNCTION) {
1466 parseerror(parser, "not a function (%s)", type_name[fun->expression.vtype]);
1470 if (!fun->expression.next) {
1471 parseerror(parser, "could not determine function return type");
1474 ast_value *fval = (ast_istype(fun, ast_value) ? ((ast_value*)fun) : NULL);
1476 if (fun->expression.flags & AST_FLAG_DEPRECATED) {
1478 return !parsewarning(parser, WARN_DEPRECATED,
1479 "call to function (which is marked deprecated)\n",
1480 "-> it has been declared here: %s:%i",
1481 ast_ctx(fun).file, ast_ctx(fun).line);
1484 return !parsewarning(parser, WARN_DEPRECATED,
1485 "call to `%s` (which is marked deprecated)\n"
1486 "-> `%s` declared here: %s:%i",
1487 fval->name, fval->name, ast_ctx(fun).file, ast_ctx(fun).line);
1489 return !parsewarning(parser, WARN_DEPRECATED,
1490 "call to `%s` (deprecated: %s)\n"
1491 "-> `%s` declared here: %s:%i",
1492 fval->name, fval->desc, fval->name, ast_ctx(fun).file,
1496 if (vec_size(fun->expression.params) != paramcount &&
1497 !((fun->expression.flags & AST_FLAG_VARIADIC) &&
1498 vec_size(fun->expression.params) < paramcount))
1500 const char *fewmany = (vec_size(fun->expression.params) > paramcount) ? "few" : "many";
1502 return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT,
1503 "too %s parameters for call to %s: expected %i, got %i\n"
1504 " -> `%s` has been declared here: %s:%i",
1505 fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount,
1506 fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
1508 return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT,
1509 "too %s parameters for function call: expected %i, got %i\n"
1510 " -> it has been declared here: %s:%i",
1511 fewmany, (int)vec_size(fun->expression.params), (int)paramcount,
1512 ast_ctx(fun).file, (int)ast_ctx(fun).line);
1519 static bool parser_close_paren(parser_t *parser, shunt *sy, bool functions_only)
1521 if (!vec_size(sy->ops)) {
1522 parseerror(parser, "unmatched closing paren");
1525 /* this would for bit a + (x) because there are no operators inside (x)
1526 if (sy->ops[vec_size(sy->ops)-1].paren == 1) {
1527 parseerror(parser, "empty parenthesis expression");
1531 while (vec_size(sy->ops)) {
1532 if (vec_last(sy->ops).paren == SY_PAREN_FUNC) {
1533 if (!parser_close_call(parser, sy))
1537 if (vec_last(sy->ops).paren == SY_PAREN_EXPR) {
1538 if (!vec_size(sy->out)) {
1539 compile_error(vec_last(sy->ops).ctx, "empty paren expression");
1540 vec_shrinkby(sy->ops, 1);
1543 vec_shrinkby(sy->ops, 1);
1544 return !functions_only;
1546 if (vec_last(sy->ops).paren == SY_PAREN_INDEX) {
1549 /* pop off the parenthesis */
1550 vec_shrinkby(sy->ops, 1);
1551 /* then apply the index operator */
1552 if (!parser_sy_apply_operator(parser, sy))
1556 if (vec_last(sy->ops).paren == SY_PAREN_TERNARY) {
1559 if (vec_last(parser->pot) != POT_TERNARY1) {
1560 parseerror(parser, "mismatched colon in ternary expression (missing closing paren?)");
1563 vec_last(parser->pot) = POT_TERNARY2;
1564 /* pop off the parenthesis */
1565 vec_shrinkby(sy->ops, 1);
1568 if (!parser_sy_apply_operator(parser, sy))
1574 static void parser_reclassify_token(parser_t *parser)
1577 for (i = 0; i < operator_count; ++i) {
1578 if (!strcmp(parser_tokval(parser), operators[i].op)) {
1579 parser->tok = TOKEN_OPERATOR;
1585 static ast_expression* parse_vararg_do(parser_t *parser)
1587 ast_expression *idx, *out;
1589 ast_value *funtype = parser->function->vtype;
1591 lex_ctx ctx = parser_ctx(parser);
1593 if (!parser_next(parser) || parser->tok != '(') {
1594 parseerror(parser, "expected parameter index and type in parenthesis");
1597 if (!parser_next(parser)) {
1598 parseerror(parser, "error parsing parameter index");
1602 idx = parse_expression_leave(parser, true, false, false);
1606 if (parser->tok != ',') {
1608 parseerror(parser, "expected comma after parameter index");
1612 if (!parser_next(parser) || (parser->tok != TOKEN_IDENT && parser->tok != TOKEN_TYPENAME)) {
1614 parseerror(parser, "expected typename for vararg");
1618 typevar = parse_typename(parser, NULL, NULL);
1624 if (parser->tok != ')') {
1626 ast_delete(typevar);
1627 parseerror(parser, "expected closing paren");
1632 if (!parser_next(parser)) {
1634 ast_delete(typevar);
1635 parseerror(parser, "parse error after vararg");
1640 if (!parser->function->varargs) {
1642 ast_delete(typevar);
1643 parseerror(parser, "function has no variable argument list");
1647 if (funtype->expression.varparam &&
1648 !ast_compare_type((ast_expression*)typevar, (ast_expression*)funtype->expression.varparam))
1652 ast_type_to_string((ast_expression*)typevar, ty1, sizeof(ty1));
1653 ast_type_to_string((ast_expression*)funtype->expression.varparam, ty2, sizeof(ty2));
1654 compile_error(ast_ctx(typevar),
1655 "function was declared to take varargs of type `%s`, requested type is: %s",
1659 out = (ast_expression*)ast_array_index_new(ctx, (ast_expression*)(parser->function->varargs), idx);
1660 ast_type_adopt(out, typevar);
1661 ast_delete(typevar);
1665 static ast_expression* parse_vararg(parser_t *parser)
1667 bool old_noops = parser->lex->flags.noops;
1668 enum parser_pot *old_pot = parser->pot;
1670 ast_expression *out;
1673 parser->lex->flags.noops = true;
1674 out = parse_vararg_do(parser);
1676 parser->pot = old_pot;
1677 parser->lex->flags.noops = old_noops;
1681 static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels)
1683 ast_expression *expr = NULL;
1686 bool wantop = false;
1687 /* only warn once about an assignment in a truth value because the current code
1688 * would trigger twice on: if(a = b && ...), once for the if-truth-value, once for the && part
1690 bool warn_truthvalue = true;
1692 /* count the parens because an if starts with one, so the
1693 * end of a condition is an unmatched closing paren
1701 parser->lex->flags.noops = false;
1703 parser_reclassify_token(parser);
1707 if (OPTS_FLAG(TRANSLATABLE_STRINGS) &&
1708 parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "_"))
1710 /* a translatable string */
1714 parseerror(parser, "expected operator or end of statement, got constant");
1718 parser->lex->flags.noops = true;
1719 if (!parser_next(parser) || parser->tok != '(') {
1720 parseerror(parser, "use _(\"string\") to create a translatable string constant");
1723 parser->lex->flags.noops = false;
1724 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
1725 parseerror(parser, "expected a constant string in translatable-string extension");
1728 val = parser_const_string(parser, parser_tokval(parser), true);
1732 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1733 DEBUGSHUNTDO(con_out("push string\n"));
1735 if (!parser_next(parser) || parser->tok != ')') {
1736 parseerror(parser, "expected closing paren after translatable string");
1740 else if (parser->tok == TOKEN_DOTS)
1743 if (!OPTS_FLAG(VARIADIC_ARGS)) {
1744 parseerror(parser, "cannot access varargs (try -fvariadic-args)");
1748 parseerror(parser, "expected operator or end of statement");
1752 va = parse_vararg(parser);
1755 vec_push(sy.out, syexp(parser_ctx(parser), va));
1756 DEBUGSHUNTDO(con_out("push `...`\n"));
1758 else if (parser->tok == TOKEN_IDENT)
1760 const char *ctoken = parser_tokval(parser);
1761 ast_expression *prev = vec_size(sy.out) ? vec_last(sy.out).out : NULL;
1762 ast_expression *var;
1764 parseerror(parser, "expected operator or end of statement");
1768 /* a_vector.{x,y,z} */
1769 if (!vec_size(sy.ops) ||
1770 !vec_last(sy.ops).etype ||
1771 operators[vec_last(sy.ops).etype-1].id != opid1('.') ||
1772 (prev >= intrinsic_debug_typestring &&
1773 prev <= intrinsic_debug_typestring))
1775 /* When adding more intrinsics, fix the above condition */
1778 if (prev && prev->expression.vtype == TYPE_VECTOR && ctoken[0] >= 'x' && ctoken[0] <= 'z' && !ctoken[1])
1780 var = (ast_expression*)parser->const_vec[ctoken[0]-'x'];
1782 var = parser_find_var(parser, parser_tokval(parser));
1784 var = parser_find_field(parser, parser_tokval(parser));
1786 if (!var && with_labels) {
1787 var = (ast_expression*)parser_find_label(parser, parser_tokval(parser));
1789 ast_label *lbl = ast_label_new(parser_ctx(parser), parser_tokval(parser), true);
1790 var = (ast_expression*)lbl;
1791 vec_push(parser->labels, lbl);
1796 if (!strcmp(parser_tokval(parser), "__builtin_debug_typestring")) {
1797 var = (ast_expression*)intrinsic_debug_typestring;
1801 char *correct = NULL;
1804 * sometimes people use preprocessing predefs without enabling them
1805 * i've done this thousands of times already myself. Lets check for
1806 * it in the predef table. And diagnose it better :)
1808 if (!OPTS_FLAG(FTEPP_PREDEFS)) {
1809 for (i = 0; i < sizeof(ftepp_predefs)/sizeof(*ftepp_predefs); i++) {
1810 if (!strcmp(ftepp_predefs[i].name, parser_tokval(parser))) {
1811 parseerror(parser, "unexpected ident: %s (use -fftepp-predef to enable pre-defined macros)", parser_tokval(parser));
1818 * TODO: determine the best score for the identifier: be it
1819 * a variable, a field.
1821 * We should also consider adding correction tables for
1822 * other things as well.
1824 if (opts.correction) {
1826 correct_init(&corr);
1828 for (i = 0; i < vec_size(parser->correct_variables); i++) {
1829 correct = correct_str(&corr, parser->correct_variables[i], parser_tokval(parser));
1830 if (strcmp(correct, parser_tokval(parser))) {
1832 } else if (correct) {
1837 correct_free(&corr);
1840 parseerror(parser, "unexpected ident: %s (did you mean %s?)", parser_tokval(parser), correct);
1845 parseerror(parser, "unexpected ident: %s", parser_tokval(parser));
1851 if (ast_istype(var, ast_value)) {
1852 ((ast_value*)var)->uses++;
1854 else if (ast_istype(var, ast_member)) {
1855 ast_member *mem = (ast_member*)var;
1856 if (ast_istype(mem->owner, ast_value))
1857 ((ast_value*)(mem->owner))->uses++;
1860 vec_push(sy.out, syexp(parser_ctx(parser), var));
1861 DEBUGSHUNTDO(con_out("push %s\n", parser_tokval(parser)));
1863 else if (parser->tok == TOKEN_FLOATCONST) {
1866 parseerror(parser, "expected operator or end of statement, got constant");
1870 val = parser_const_float(parser, (parser_token(parser)->constval.f));
1873 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1874 DEBUGSHUNTDO(con_out("push %g\n", parser_token(parser)->constval.f));
1876 else if (parser->tok == TOKEN_INTCONST || parser->tok == TOKEN_CHARCONST) {
1879 parseerror(parser, "expected operator or end of statement, got constant");
1883 val = parser_const_float(parser, (double)(parser_token(parser)->constval.i));
1886 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1887 DEBUGSHUNTDO(con_out("push %i\n", parser_token(parser)->constval.i));
1889 else if (parser->tok == TOKEN_STRINGCONST) {
1892 parseerror(parser, "expected operator or end of statement, got constant");
1896 val = parser_const_string(parser, parser_tokval(parser), false);
1899 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1900 DEBUGSHUNTDO(con_out("push string\n"));
1902 else if (parser->tok == TOKEN_VECTORCONST) {
1905 parseerror(parser, "expected operator or end of statement, got constant");
1909 val = parser_const_vector(parser, parser_token(parser)->constval.v);
1912 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1913 DEBUGSHUNTDO(con_out("push '%g %g %g'\n",
1914 parser_token(parser)->constval.v.x,
1915 parser_token(parser)->constval.v.y,
1916 parser_token(parser)->constval.v.z));
1918 else if (parser->tok == '(') {
1919 parseerror(parser, "internal error: '(' should be classified as operator");
1922 else if (parser->tok == '[') {
1923 parseerror(parser, "internal error: '[' should be classified as operator");
1926 else if (parser->tok == ')') {
1928 DEBUGSHUNTDO(con_out("do[op] )\n"));
1932 /* we do expect an operator next */
1933 /* closing an opening paren */
1934 if (!parser_close_paren(parser, &sy, false))
1936 if (vec_last(parser->pot) != POT_PAREN) {
1937 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1940 vec_pop(parser->pot);
1942 DEBUGSHUNTDO(con_out("do[nop] )\n"));
1946 /* allowed for function calls */
1947 if (!parser_close_paren(parser, &sy, true))
1949 if (vec_last(parser->pot) != POT_PAREN) {
1950 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1953 vec_pop(parser->pot);
1957 else if (parser->tok == ']') {
1959 parseerror(parser, "operand expected");
1963 if (!parser_close_paren(parser, &sy, false))
1965 if (vec_last(parser->pot) != POT_PAREN) {
1966 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1969 vec_pop(parser->pot);
1972 else if (parser->tok == TOKEN_TYPENAME) {
1973 parseerror(parser, "unexpected typename");
1976 else if (parser->tok != TOKEN_OPERATOR) {
1978 parseerror(parser, "expected operator or end of statement");
1985 /* classify the operator */
1986 const oper_info *op;
1987 const oper_info *olast = NULL;
1989 for (o = 0; o < operator_count; ++o) {
1990 if (((!(operators[o].flags & OP_PREFIX) == !!wantop)) &&
1991 /* !(operators[o].flags & OP_SUFFIX) && / * remove this */
1992 !strcmp(parser_tokval(parser), operators[o].op))
1997 if (o == operator_count) {
1998 /* no operator found... must be the end of the statement */
2001 /* found an operator */
2004 /* when declaring variables, a comma starts a new variable */
2005 if (op->id == opid1(',') && !parens && stopatcomma) {
2006 /* fixup the token */
2011 /* a colon without a pervious question mark cannot be a ternary */
2012 if (!ternaries && op->id == opid2(':','?')) {
2017 if (op->id == opid1(',')) {
2018 if (vec_size(parser->pot) && vec_last(parser->pot) == POT_TERNARY2) {
2019 (void)!parsewarning(parser, WARN_TERNARY_PRECEDENCE, "suggesting parenthesis around ternary expression");
2023 if (vec_size(sy.ops) && !vec_last(sy.ops).paren)
2024 olast = &operators[vec_last(sy.ops).etype-1];
2026 #define IsAssignOp(x) (\
2027 (x) == opid1('=') || \
2028 (x) == opid2('+','=') || \
2029 (x) == opid2('-','=') || \
2030 (x) == opid2('*','=') || \
2031 (x) == opid2('/','=') || \
2032 (x) == opid2('%','=') || \
2033 (x) == opid2('&','=') || \
2034 (x) == opid2('|','=') || \
2035 (x) == opid3('&','~','=') \
2037 if (warn_truthvalue) {
2038 if ( (olast && IsAssignOp(olast->id) && (op->id == opid2('&','&') || op->id == opid2('|','|'))) ||
2039 (olast && IsAssignOp(op->id) && (olast->id == opid2('&','&') || olast->id == opid2('|','|'))) ||
2040 (truthvalue && !vec_size(parser->pot) && IsAssignOp(op->id))
2043 (void)!parsewarning(parser, WARN_PARENTHESIS, "suggesting parenthesis around assignment used as truth value");
2044 warn_truthvalue = false;
2049 (op->prec < olast->prec) ||
2050 (op->assoc == ASSOC_LEFT && op->prec <= olast->prec) ) )
2052 if (!parser_sy_apply_operator(parser, &sy))
2054 if (vec_size(sy.ops) && !vec_last(sy.ops).paren)
2055 olast = &operators[vec_last(sy.ops).etype-1];
2060 if (op->id == opid1('(')) {
2062 size_t sycount = vec_size(sy.out);
2063 DEBUGSHUNTDO(con_out("push [op] (\n"));
2064 ++parens; vec_push(parser->pot, POT_PAREN);
2065 /* we expected an operator, this is the function-call operator */
2066 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_FUNC, sycount-1));
2068 ++parens; vec_push(parser->pot, POT_PAREN);
2069 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_EXPR, 0));
2070 DEBUGSHUNTDO(con_out("push [nop] (\n"));
2073 } else if (op->id == opid1('[')) {
2075 parseerror(parser, "unexpected array subscript");
2078 ++parens; vec_push(parser->pot, POT_PAREN);
2079 /* push both the operator and the paren, this makes life easier */
2080 vec_push(sy.ops, syop(parser_ctx(parser), op));
2081 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_INDEX, 0));
2083 } else if (op->id == opid2('?',':')) {
2084 vec_push(sy.ops, syop(parser_ctx(parser), op));
2085 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_TERNARY, 0));
2088 vec_push(parser->pot, POT_TERNARY1);
2089 } else if (op->id == opid2(':','?')) {
2090 if (!vec_size(parser->pot)) {
2091 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
2094 if (vec_last(parser->pot) != POT_TERNARY1) {
2095 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
2098 if (!parser_close_paren(parser, &sy, false))
2100 vec_push(sy.ops, syop(parser_ctx(parser), op));
2104 DEBUGSHUNTDO(con_out("push operator %s\n", op->op));
2105 vec_push(sy.ops, syop(parser_ctx(parser), op));
2106 wantop = !!(op->flags & OP_SUFFIX);
2109 if (!parser_next(parser)) {
2112 if (parser->tok == ';' ||
2113 (!parens && (parser->tok == ']' || parser->tok == ')' || parser->tok == '}')))
2119 while (vec_size(sy.ops)) {
2120 if (!parser_sy_apply_operator(parser, &sy))
2124 parser->lex->flags.noops = true;
2125 if (!vec_size(sy.out)) {
2126 parseerror(parser, "empty expression");
2129 expr = sy.out[0].out;
2132 DEBUGSHUNTDO(con_out("shunt done\n"));
2133 if (vec_size(parser->pot)) {
2134 parseerror(parser, "internal error: vec_size(parser->pot) = %lu", (unsigned long)vec_size(parser->pot));
2137 vec_free(parser->pot);
2141 parser->lex->flags.noops = true;
2142 for (i = 0; i < vec_size(sy.out); ++i) {
2144 ast_unref(sy.out[i].out);
2151 static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels)
2153 ast_expression *e = parse_expression_leave(parser, stopatcomma, false, with_labels);
2156 if (parser->tok != ';') {
2157 parseerror(parser, "semicolon expected after expression");
2161 if (!parser_next(parser)) {
2168 static void parser_enterblock(parser_t *parser)
2170 vec_push(parser->variables, util_htnew(PARSER_HT_SIZE));
2171 vec_push(parser->_blocklocals, vec_size(parser->_locals));
2172 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
2173 vec_push(parser->_blocktypedefs, vec_size(parser->_typedefs));
2174 vec_push(parser->_block_ctx, parser_ctx(parser));
2177 vec_push(parser->correct_variables, correct_trie_new());
2178 vec_push(parser->correct_variables_score, NULL);
2181 static bool parser_leaveblock(parser_t *parser)
2184 size_t locals, typedefs;
2186 if (vec_size(parser->variables) <= PARSER_HT_LOCALS) {
2187 parseerror(parser, "internal error: parser_leaveblock with no block");
2191 util_htdel(vec_last(parser->variables));
2192 correct_del(vec_last(parser->correct_variables), vec_last(parser->correct_variables_score));
2194 vec_pop(parser->variables);
2195 vec_pop(parser->correct_variables);
2196 vec_pop(parser->correct_variables_score);
2197 if (!vec_size(parser->_blocklocals)) {
2198 parseerror(parser, "internal error: parser_leaveblock with no block (2)");
2202 locals = vec_last(parser->_blocklocals);
2203 vec_pop(parser->_blocklocals);
2204 while (vec_size(parser->_locals) != locals) {
2205 ast_expression *e = vec_last(parser->_locals);
2206 ast_value *v = (ast_value*)e;
2207 vec_pop(parser->_locals);
2208 if (ast_istype(e, ast_value) && !v->uses) {
2209 if (compile_warning(ast_ctx(v), WARN_UNUSED_VARIABLE, "unused variable: `%s`", v->name))
2214 typedefs = vec_last(parser->_blocktypedefs);
2215 while (vec_size(parser->_typedefs) != typedefs) {
2216 ast_delete(vec_last(parser->_typedefs));
2217 vec_pop(parser->_typedefs);
2219 util_htdel(vec_last(parser->typedefs));
2220 vec_pop(parser->typedefs);
2222 vec_pop(parser->_block_ctx);
2227 static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e)
2229 vec_push(parser->_locals, e);
2230 util_htset(vec_last(parser->variables), name, (void*)e);
2234 vec_last(parser->correct_variables),
2235 &vec_last(parser->correct_variables_score),
2240 static void parser_addglobal(parser_t *parser, const char *name, ast_expression *e)
2242 vec_push(parser->globals, e);
2243 util_htset(parser->htglobals, name, e);
2247 parser->correct_variables[0],
2248 &parser->correct_variables_score[0],
2253 static ast_expression* process_condition(parser_t *parser, ast_expression *cond, bool *_ifnot)
2257 ast_expression *prev;
2259 if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && cond->expression.vtype == TYPE_STRING)
2262 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_S, cond);
2265 parseerror(parser, "internal error: failed to process condition");
2270 else if (OPTS_FLAG(CORRECT_LOGIC) && cond->expression.vtype == TYPE_VECTOR)
2272 /* vector types need to be cast to true booleans */
2273 ast_binary *bin = (ast_binary*)cond;
2274 if (!OPTS_FLAG(PERL_LOGIC) || !ast_istype(cond, ast_binary) || !(bin->op == INSTR_AND || bin->op == INSTR_OR))
2276 /* in perl-logic, AND and OR take care of the -fcorrect-logic */
2278 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_V, cond);
2281 parseerror(parser, "internal error: failed to process condition");
2288 unary = (ast_unary*)cond;
2289 while (ast_istype(cond, ast_unary) && unary->op == INSTR_NOT_F)
2291 cond = unary->operand;
2292 unary->operand = NULL;
2295 unary = (ast_unary*)cond;
2299 parseerror(parser, "internal error: failed to process condition");
2301 if (ifnot) *_ifnot = !*_ifnot;
2305 static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out)
2308 ast_expression *cond, *ontrue = NULL, *onfalse = NULL;
2311 lex_ctx ctx = parser_ctx(parser);
2313 (void)block; /* not touching */
2315 /* skip the 'if', parse an optional 'not' and check for an opening paren */
2316 if (!parser_next(parser)) {
2317 parseerror(parser, "expected condition or 'not'");
2320 if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "not")) {
2322 if (!parser_next(parser)) {
2323 parseerror(parser, "expected condition in parenthesis");
2327 if (parser->tok != '(') {
2328 parseerror(parser, "expected 'if' condition in parenthesis");
2331 /* parse into the expression */
2332 if (!parser_next(parser)) {
2333 parseerror(parser, "expected 'if' condition after opening paren");
2336 /* parse the condition */
2337 cond = parse_expression_leave(parser, false, true, false);
2341 if (parser->tok != ')') {
2342 parseerror(parser, "expected closing paren after 'if' condition");
2346 /* parse into the 'then' branch */
2347 if (!parser_next(parser)) {
2348 parseerror(parser, "expected statement for on-true branch of 'if'");
2352 if (!parse_statement_or_block(parser, &ontrue)) {
2357 ontrue = (ast_expression*)ast_block_new(parser_ctx(parser));
2358 /* check for an else */
2359 if (!strcmp(parser_tokval(parser), "else")) {
2360 /* parse into the 'else' branch */
2361 if (!parser_next(parser)) {
2362 parseerror(parser, "expected on-false branch after 'else'");
2367 if (!parse_statement_or_block(parser, &onfalse)) {
2374 cond = process_condition(parser, cond, &ifnot);
2376 if (ontrue) ast_delete(ontrue);
2377 if (onfalse) ast_delete(onfalse);
2382 ifthen = ast_ifthen_new(ctx, cond, onfalse, ontrue);
2384 ifthen = ast_ifthen_new(ctx, cond, ontrue, onfalse);
2385 *out = (ast_expression*)ifthen;
2389 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out);
2390 static bool parse_while(parser_t *parser, ast_block *block, ast_expression **out)
2395 /* skip the 'while' and get the body */
2396 if (!parser_next(parser)) {
2397 if (OPTS_FLAG(LOOP_LABELS))
2398 parseerror(parser, "expected loop label or 'while' condition in parenthesis");
2400 parseerror(parser, "expected 'while' condition in parenthesis");
2404 if (parser->tok == ':') {
2405 if (!OPTS_FLAG(LOOP_LABELS))
2406 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2407 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2408 parseerror(parser, "expected loop label");
2411 label = util_strdup(parser_tokval(parser));
2412 if (!parser_next(parser)) {
2414 parseerror(parser, "expected 'while' condition in parenthesis");
2419 if (parser->tok != '(') {
2420 parseerror(parser, "expected 'while' condition in parenthesis");
2424 vec_push(parser->breaks, label);
2425 vec_push(parser->continues, label);
2427 rv = parse_while_go(parser, block, out);
2430 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2431 parseerror(parser, "internal error: label stack corrupted");
2437 vec_pop(parser->breaks);
2438 vec_pop(parser->continues);
2443 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out)
2446 ast_expression *cond, *ontrue;
2450 lex_ctx ctx = parser_ctx(parser);
2452 (void)block; /* not touching */
2454 /* parse into the expression */
2455 if (!parser_next(parser)) {
2456 parseerror(parser, "expected 'while' condition after opening paren");
2459 /* parse the condition */
2460 cond = parse_expression_leave(parser, false, true, false);
2464 if (parser->tok != ')') {
2465 parseerror(parser, "expected closing paren after 'while' condition");
2469 /* parse into the 'then' branch */
2470 if (!parser_next(parser)) {
2471 parseerror(parser, "expected while-loop body");
2475 if (!parse_statement_or_block(parser, &ontrue)) {
2480 cond = process_condition(parser, cond, &ifnot);
2485 aloop = ast_loop_new(ctx, NULL, cond, ifnot, NULL, false, NULL, ontrue);
2486 *out = (ast_expression*)aloop;
2490 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out);
2491 static bool parse_dowhile(parser_t *parser, ast_block *block, ast_expression **out)
2496 /* skip the 'do' and get the body */
2497 if (!parser_next(parser)) {
2498 if (OPTS_FLAG(LOOP_LABELS))
2499 parseerror(parser, "expected loop label or body");
2501 parseerror(parser, "expected loop body");
2505 if (parser->tok == ':') {
2506 if (!OPTS_FLAG(LOOP_LABELS))
2507 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2508 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2509 parseerror(parser, "expected loop label");
2512 label = util_strdup(parser_tokval(parser));
2513 if (!parser_next(parser)) {
2515 parseerror(parser, "expected loop body");
2520 vec_push(parser->breaks, label);
2521 vec_push(parser->continues, label);
2523 rv = parse_dowhile_go(parser, block, out);
2526 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2527 parseerror(parser, "internal error: label stack corrupted");
2533 vec_pop(parser->breaks);
2534 vec_pop(parser->continues);
2539 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out)
2542 ast_expression *cond, *ontrue;
2546 lex_ctx ctx = parser_ctx(parser);
2548 (void)block; /* not touching */
2550 if (!parse_statement_or_block(parser, &ontrue))
2553 /* expect the "while" */
2554 if (parser->tok != TOKEN_KEYWORD ||
2555 strcmp(parser_tokval(parser), "while"))
2557 parseerror(parser, "expected 'while' and condition");
2562 /* skip the 'while' and check for opening paren */
2563 if (!parser_next(parser) || parser->tok != '(') {
2564 parseerror(parser, "expected 'while' condition in parenthesis");
2568 /* parse into the expression */
2569 if (!parser_next(parser)) {
2570 parseerror(parser, "expected 'while' condition after opening paren");
2574 /* parse the condition */
2575 cond = parse_expression_leave(parser, false, true, false);
2579 if (parser->tok != ')') {
2580 parseerror(parser, "expected closing paren after 'while' condition");
2586 if (!parser_next(parser) || parser->tok != ';') {
2587 parseerror(parser, "expected semicolon after condition");
2593 if (!parser_next(parser)) {
2594 parseerror(parser, "parse error");
2600 cond = process_condition(parser, cond, &ifnot);
2605 aloop = ast_loop_new(ctx, NULL, NULL, false, cond, ifnot, NULL, ontrue);
2606 *out = (ast_expression*)aloop;
2610 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out);
2611 static bool parse_for(parser_t *parser, ast_block *block, ast_expression **out)
2616 /* skip the 'for' and check for opening paren */
2617 if (!parser_next(parser)) {
2618 if (OPTS_FLAG(LOOP_LABELS))
2619 parseerror(parser, "expected loop label or 'for' expressions in parenthesis");
2621 parseerror(parser, "expected 'for' expressions in parenthesis");
2625 if (parser->tok == ':') {
2626 if (!OPTS_FLAG(LOOP_LABELS))
2627 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2628 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2629 parseerror(parser, "expected loop label");
2632 label = util_strdup(parser_tokval(parser));
2633 if (!parser_next(parser)) {
2635 parseerror(parser, "expected 'for' expressions in parenthesis");
2640 if (parser->tok != '(') {
2641 parseerror(parser, "expected 'for' expressions in parenthesis");
2645 vec_push(parser->breaks, label);
2646 vec_push(parser->continues, label);
2648 rv = parse_for_go(parser, block, out);
2651 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2652 parseerror(parser, "internal error: label stack corrupted");
2658 vec_pop(parser->breaks);
2659 vec_pop(parser->continues);
2663 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out)
2666 ast_expression *initexpr, *cond, *increment, *ontrue;
2672 lex_ctx ctx = parser_ctx(parser);
2674 parser_enterblock(parser);
2681 /* parse into the expression */
2682 if (!parser_next(parser)) {
2683 parseerror(parser, "expected 'for' initializer after opening paren");
2688 if (parser->tok == TOKEN_IDENT)
2689 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
2691 if (typevar || parser->tok == TOKEN_TYPENAME) {
2693 if (opts.standard != COMPILER_GMQCC) {
2694 if (parsewarning(parser, WARN_EXTENSIONS,
2695 "current standard does not allow variable declarations in for-loop initializers"))
2699 if (!parse_variable(parser, block, true, CV_VAR, typevar, false, false, 0, NULL))
2702 else if (parser->tok != ';')
2704 initexpr = parse_expression_leave(parser, false, false, false);
2709 /* move on to condition */
2710 if (parser->tok != ';') {
2711 parseerror(parser, "expected semicolon after for-loop initializer");
2714 if (!parser_next(parser)) {
2715 parseerror(parser, "expected for-loop condition");
2719 /* parse the condition */
2720 if (parser->tok != ';') {
2721 cond = parse_expression_leave(parser, false, true, false);
2726 /* move on to incrementor */
2727 if (parser->tok != ';') {
2728 parseerror(parser, "expected semicolon after for-loop initializer");
2731 if (!parser_next(parser)) {
2732 parseerror(parser, "expected for-loop condition");
2736 /* parse the incrementor */
2737 if (parser->tok != ')') {
2738 increment = parse_expression_leave(parser, false, false, false);
2741 if (!ast_side_effects(increment)) {
2742 if (genwarning(ast_ctx(increment), WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
2748 if (parser->tok != ')') {
2749 parseerror(parser, "expected closing paren after 'for-loop' incrementor");
2752 /* parse into the 'then' branch */
2753 if (!parser_next(parser)) {
2754 parseerror(parser, "expected for-loop body");
2757 if (!parse_statement_or_block(parser, &ontrue))
2761 cond = process_condition(parser, cond, &ifnot);
2765 aloop = ast_loop_new(ctx, initexpr, cond, ifnot, NULL, false, increment, ontrue);
2766 *out = (ast_expression*)aloop;
2768 if (!parser_leaveblock(parser))
2772 if (initexpr) ast_delete(initexpr);
2773 if (cond) ast_delete(cond);
2774 if (increment) ast_delete(increment);
2775 (void)!parser_leaveblock(parser);
2779 static bool parse_return(parser_t *parser, ast_block *block, ast_expression **out)
2781 ast_expression *exp = NULL;
2782 ast_return *ret = NULL;
2783 ast_value *expected = parser->function->vtype;
2785 lex_ctx ctx = parser_ctx(parser);
2787 (void)block; /* not touching */
2789 if (!parser_next(parser)) {
2790 parseerror(parser, "expected return expression");
2794 if (parser->tok != ';') {
2795 exp = parse_expression(parser, false, false);
2799 if (exp->expression.vtype != TYPE_NIL &&
2800 exp->expression.vtype != expected->expression.next->expression.vtype)
2802 parseerror(parser, "return with invalid expression");
2805 ret = ast_return_new(ctx, exp);
2811 if (!parser_next(parser))
2812 parseerror(parser, "parse error");
2813 if (expected->expression.next->expression.vtype != TYPE_VOID) {
2814 (void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value");
2816 ret = ast_return_new(ctx, NULL);
2818 *out = (ast_expression*)ret;
2822 static bool parse_break_continue(parser_t *parser, ast_block *block, ast_expression **out, bool is_continue)
2825 unsigned int levels = 0;
2826 lex_ctx ctx = parser_ctx(parser);
2827 const char **loops = (is_continue ? parser->continues : parser->breaks);
2829 (void)block; /* not touching */
2830 if (!parser_next(parser)) {
2831 parseerror(parser, "expected semicolon or loop label");
2835 if (!vec_size(loops)) {
2837 parseerror(parser, "`continue` can only be used inside loops");
2839 parseerror(parser, "`break` can only be used inside loops or switches");
2842 if (parser->tok == TOKEN_IDENT) {
2843 if (!OPTS_FLAG(LOOP_LABELS))
2844 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2845 i = vec_size(loops);
2847 if (loops[i] && !strcmp(loops[i], parser_tokval(parser)))
2850 parseerror(parser, "no such loop to %s: `%s`",
2851 (is_continue ? "continue" : "break out of"),
2852 parser_tokval(parser));
2857 if (!parser_next(parser)) {
2858 parseerror(parser, "expected semicolon");
2863 if (parser->tok != ';') {
2864 parseerror(parser, "expected semicolon");
2868 if (!parser_next(parser))
2869 parseerror(parser, "parse error");
2871 *out = (ast_expression*)ast_breakcont_new(ctx, is_continue, levels);
2875 /* returns true when it was a variable qualifier, false otherwise!
2876 * on error, cvq is set to CV_WRONG
2878 static bool parse_qualifiers(parser_t *parser, bool with_local, int *cvq, bool *noref, bool *is_static, uint32_t *_flags, char **message)
2880 bool had_const = false;
2881 bool had_var = false;
2882 bool had_noref = false;
2883 bool had_attrib = false;
2884 bool had_static = false;
2889 if (parser->tok == TOKEN_ATTRIBUTE_OPEN) {
2891 /* parse an attribute */
2892 if (!parser_next(parser)) {
2893 parseerror(parser, "expected attribute after `[[`");
2897 if (!strcmp(parser_tokval(parser), "noreturn")) {
2898 flags |= AST_FLAG_NORETURN;
2899 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2900 parseerror(parser, "`noreturn` attribute has no parameters, expected `]]`");
2905 else if (!strcmp(parser_tokval(parser), "noref")) {
2907 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2908 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2913 else if (!strcmp(parser_tokval(parser), "inline")) {
2914 flags |= AST_FLAG_INLINE;
2915 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2916 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2923 else if (!strcmp(parser_tokval(parser), "deprecated") && !(flags & AST_FLAG_DEPRECATED)) {
2924 flags |= AST_FLAG_DEPRECATED;
2927 if (!parser_next(parser)) {
2928 parseerror(parser, "parse error in attribute");
2932 if (parser->tok == '(') {
2933 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
2934 parseerror(parser, "`deprecated` attribute missing parameter");
2938 *message = util_strdup(parser_tokval(parser));
2940 if (!parser_next(parser)) {
2941 parseerror(parser, "parse error in attribute");
2945 if(parser->tok != ')') {
2946 parseerror(parser, "`deprecated` attribute expected `)` after parameter");
2950 if (!parser_next(parser)) {
2951 parseerror(parser, "parse error in attribute");
2956 if (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2957 parseerror(parser, "`deprecated` attribute expected `]]`");
2960 if (*message) mem_d(*message);
2968 /* Skip tokens until we hit a ]] */
2969 (void)!parsewarning(parser, WARN_UNKNOWN_ATTRIBUTE, "unknown attribute starting with `%s`", parser_tokval(parser));
2970 while (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2971 if (!parser_next(parser)) {
2972 parseerror(parser, "error inside attribute");
2979 else if (with_local && !strcmp(parser_tokval(parser), "static"))
2981 else if (!strcmp(parser_tokval(parser), "const"))
2983 else if (!strcmp(parser_tokval(parser), "var"))
2985 else if (with_local && !strcmp(parser_tokval(parser), "local"))
2987 else if (!strcmp(parser_tokval(parser), "noref"))
2989 else if (!had_const && !had_var && !had_noref && !had_attrib && !had_static && !flags) {
2994 if (!parser_next(parser))
3004 *is_static = had_static;
3008 parseerror(parser, "parse error after variable qualifier");
3013 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out);
3014 static bool parse_switch(parser_t *parser, ast_block *block, ast_expression **out)
3019 /* skip the 'while' and get the body */
3020 if (!parser_next(parser)) {
3021 if (OPTS_FLAG(LOOP_LABELS))
3022 parseerror(parser, "expected loop label or 'switch' operand in parenthesis");
3024 parseerror(parser, "expected 'switch' operand in parenthesis");
3028 if (parser->tok == ':') {
3029 if (!OPTS_FLAG(LOOP_LABELS))
3030 parseerror(parser, "labeled loops not activated, try using -floop-labels");
3031 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
3032 parseerror(parser, "expected loop label");
3035 label = util_strdup(parser_tokval(parser));
3036 if (!parser_next(parser)) {
3038 parseerror(parser, "expected 'switch' operand in parenthesis");
3043 if (parser->tok != '(') {
3044 parseerror(parser, "expected 'switch' operand in parenthesis");
3048 vec_push(parser->breaks, label);
3050 rv = parse_switch_go(parser, block, out);
3053 if (vec_last(parser->breaks) != label) {
3054 parseerror(parser, "internal error: label stack corrupted");
3060 vec_pop(parser->breaks);
3065 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out)
3067 ast_expression *operand;
3070 ast_switch *switchnode;
3071 ast_switch_case swcase;
3074 bool noref, is_static;
3075 uint32_t qflags = 0;
3077 lex_ctx ctx = parser_ctx(parser);
3079 (void)block; /* not touching */
3082 /* parse into the expression */
3083 if (!parser_next(parser)) {
3084 parseerror(parser, "expected switch operand");
3087 /* parse the operand */
3088 operand = parse_expression_leave(parser, false, false, false);
3092 switchnode = ast_switch_new(ctx, operand);
3095 if (parser->tok != ')') {
3096 ast_delete(switchnode);
3097 parseerror(parser, "expected closing paren after 'switch' operand");
3101 /* parse over the opening paren */
3102 if (!parser_next(parser) || parser->tok != '{') {
3103 ast_delete(switchnode);
3104 parseerror(parser, "expected list of cases");
3108 if (!parser_next(parser)) {
3109 ast_delete(switchnode);
3110 parseerror(parser, "expected 'case' or 'default'");
3114 /* new block; allow some variables to be declared here */
3115 parser_enterblock(parser);
3118 if (parser->tok == TOKEN_IDENT)
3119 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
3120 if (typevar || parser->tok == TOKEN_TYPENAME) {
3121 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL)) {
3122 ast_delete(switchnode);
3127 if (parse_qualifiers(parser, true, &cvq, &noref, &is_static, &qflags, NULL))
3129 if (cvq == CV_WRONG) {
3130 ast_delete(switchnode);
3133 if (!parse_variable(parser, block, false, cvq, NULL, noref, is_static, qflags, NULL)) {
3134 ast_delete(switchnode);
3143 while (parser->tok != '}') {
3144 ast_block *caseblock;
3146 if (!strcmp(parser_tokval(parser), "case")) {
3147 if (!parser_next(parser)) {
3148 ast_delete(switchnode);
3149 parseerror(parser, "expected expression for case");
3152 swcase.value = parse_expression_leave(parser, false, false, false);
3153 if (!swcase.value) {
3154 ast_delete(switchnode);
3155 parseerror(parser, "expected expression for case");
3158 if (!OPTS_FLAG(RELAXED_SWITCH)) {
3159 if (!ast_istype(swcase.value, ast_value)) { /* || ((ast_value*)swcase.value)->cvq != CV_CONST) { */
3160 parseerror(parser, "case on non-constant values need to be explicitly enabled via -frelaxed-switch");
3166 else if (!strcmp(parser_tokval(parser), "default")) {
3167 swcase.value = NULL;
3168 if (!parser_next(parser)) {
3169 ast_delete(switchnode);
3170 parseerror(parser, "expected colon");
3175 ast_delete(switchnode);
3176 parseerror(parser, "expected 'case' or 'default'");
3180 /* Now the colon and body */
3181 if (parser->tok != ':') {
3182 if (swcase.value) ast_unref(swcase.value);
3183 ast_delete(switchnode);
3184 parseerror(parser, "expected colon");
3188 if (!parser_next(parser)) {
3189 if (swcase.value) ast_unref(swcase.value);
3190 ast_delete(switchnode);
3191 parseerror(parser, "expected statements or case");
3194 caseblock = ast_block_new(parser_ctx(parser));
3196 if (swcase.value) ast_unref(swcase.value);
3197 ast_delete(switchnode);
3200 swcase.code = (ast_expression*)caseblock;
3201 vec_push(switchnode->cases, swcase);
3203 ast_expression *expr;
3204 if (parser->tok == '}')
3206 if (parser->tok == TOKEN_KEYWORD) {
3207 if (!strcmp(parser_tokval(parser), "case") ||
3208 !strcmp(parser_tokval(parser), "default"))
3213 if (!parse_statement(parser, caseblock, &expr, true)) {
3214 ast_delete(switchnode);
3219 if (!ast_block_add_expr(caseblock, expr)) {
3220 ast_delete(switchnode);
3226 parser_leaveblock(parser);
3229 if (parser->tok != '}') {
3230 ast_delete(switchnode);
3231 parseerror(parser, "expected closing paren of case list");
3234 if (!parser_next(parser)) {
3235 ast_delete(switchnode);
3236 parseerror(parser, "parse error after switch");
3239 *out = (ast_expression*)switchnode;
3243 /* parse computed goto sides */
3244 static ast_expression *parse_goto_computed(parser_t *parser, ast_expression **side) {
3245 ast_expression *on_true;
3246 ast_expression *on_false;
3247 ast_expression *cond;
3252 if (ast_istype(*side, ast_ternary)) {
3253 ast_ternary *tern = (ast_ternary*)*side;
3254 on_true = parse_goto_computed(parser, &tern->on_true);
3255 on_false = parse_goto_computed(parser, &tern->on_false);
3257 if (!on_true || !on_false) {
3258 parseerror(parser, "expected label or expression in ternary");
3259 if (on_true) ast_unref(on_true);
3260 if (on_false) ast_unref(on_false);
3268 return (ast_expression*)ast_ifthen_new(parser_ctx(parser), cond, on_true, on_false);
3269 } else if (ast_istype(*side, ast_label)) {
3270 ast_goto *gt = ast_goto_new(parser_ctx(parser), ((ast_label*)*side)->name);
3271 ast_goto_set_label(gt, ((ast_label*)*side));
3273 return (ast_expression*)gt;
3278 static bool parse_goto(parser_t *parser, ast_expression **out)
3280 ast_goto *gt = NULL;
3281 ast_expression *lbl;
3283 if (!parser_next(parser))
3286 if (parser->tok != TOKEN_IDENT) {
3287 ast_expression *expression;
3289 /* could be an expression i.e computed goto :-) */
3290 if (parser->tok != '(') {
3291 parseerror(parser, "expected label name after `goto`");
3295 /* failed to parse expression for goto */
3296 if (!(expression = parse_expression(parser, false, true)) ||
3297 !(*out = parse_goto_computed(parser, &expression))) {
3298 parseerror(parser, "invalid goto expression");
3299 ast_unref(expression);
3306 /* not computed goto */
3307 gt = ast_goto_new(parser_ctx(parser), parser_tokval(parser));
3308 lbl = parser_find_label(parser, gt->name);
3310 if (!ast_istype(lbl, ast_label)) {
3311 parseerror(parser, "internal error: label is not an ast_label");
3315 ast_goto_set_label(gt, (ast_label*)lbl);
3318 vec_push(parser->gotos, gt);
3320 if (!parser_next(parser) || parser->tok != ';') {
3321 parseerror(parser, "semicolon expected after goto label");
3324 if (!parser_next(parser)) {
3325 parseerror(parser, "parse error after goto");
3329 *out = (ast_expression*)gt;
3333 static bool parse_skipwhite(parser_t *parser)
3336 if (!parser_next(parser))
3338 } while (parser->tok == TOKEN_WHITE && parser->tok < TOKEN_ERROR);
3339 return parser->tok < TOKEN_ERROR;
3342 static bool parse_eol(parser_t *parser)
3344 if (!parse_skipwhite(parser))
3346 return parser->tok == TOKEN_EOL;
3349 static bool parse_pragma_do(parser_t *parser)
3351 if (!parser_next(parser) ||
3352 parser->tok != TOKEN_IDENT ||
3353 strcmp(parser_tokval(parser), "pragma"))
3355 parseerror(parser, "expected `pragma` keyword after `#`, got `%s`", parser_tokval(parser));
3358 if (!parse_skipwhite(parser) || parser->tok != TOKEN_IDENT) {
3359 parseerror(parser, "expected pragma, got `%s`", parser_tokval(parser));
3363 if (!strcmp(parser_tokval(parser), "noref")) {
3364 if (!parse_skipwhite(parser) || parser->tok != TOKEN_INTCONST) {
3365 parseerror(parser, "`noref` pragma requires an argument: 0 or 1");
3368 parser->noref = !!parser_token(parser)->constval.i;
3369 if (!parse_eol(parser)) {
3370 parseerror(parser, "parse error after `noref` pragma");
3376 (void)!parsewarning(parser, WARN_UNKNOWN_PRAGMAS, "ignoring #pragma %s", parser_tokval(parser));
3383 static bool parse_pragma(parser_t *parser)
3386 parser->lex->flags.preprocessing = true;
3387 parser->lex->flags.mergelines = true;
3388 rv = parse_pragma_do(parser);
3389 if (parser->tok != TOKEN_EOL) {
3390 parseerror(parser, "junk after pragma");
3393 parser->lex->flags.preprocessing = false;
3394 parser->lex->flags.mergelines = false;
3395 if (!parser_next(parser)) {
3396 parseerror(parser, "parse error after pragma");
3402 static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases)
3404 bool noref, is_static;
3406 uint32_t qflags = 0;
3407 ast_value *typevar = NULL;
3408 char *vstring = NULL;
3412 if (parser->tok == TOKEN_IDENT)
3413 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
3415 if (typevar || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
3417 /* local variable */
3419 parseerror(parser, "cannot declare a variable from here");
3422 if (opts.standard == COMPILER_QCC) {
3423 if (parsewarning(parser, WARN_EXTENSIONS, "missing 'local' keyword when declaring a local variable"))
3426 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL))
3430 else if (parse_qualifiers(parser, !!block, &cvq, &noref, &is_static, &qflags, &vstring))
3432 if (cvq == CV_WRONG)
3434 return parse_variable(parser, block, true, cvq, NULL, noref, is_static, qflags, vstring);
3436 else if (parser->tok == TOKEN_KEYWORD)
3438 if (!strcmp(parser_tokval(parser), "__builtin_debug_printtype"))
3443 if (!parser_next(parser)) {
3444 parseerror(parser, "parse error after __builtin_debug_printtype");
3448 if (parser->tok == TOKEN_IDENT && (tdef = parser_find_typedef(parser, parser_tokval(parser), 0)))
3450 ast_type_to_string((ast_expression*)tdef, ty, sizeof(ty));
3451 con_out("__builtin_debug_printtype: `%s`=`%s`\n", tdef->name, ty);
3452 if (!parser_next(parser)) {
3453 parseerror(parser, "parse error after __builtin_debug_printtype typename argument");
3459 if (!parse_statement(parser, block, out, allow_cases))
3462 con_out("__builtin_debug_printtype: got no output node\n");
3465 ast_type_to_string(*out, ty, sizeof(ty));
3466 con_out("__builtin_debug_printtype: `%s`\n", ty);
3471 else if (!strcmp(parser_tokval(parser), "return"))
3473 return parse_return(parser, block, out);
3475 else if (!strcmp(parser_tokval(parser), "if"))
3477 return parse_if(parser, block, out);
3479 else if (!strcmp(parser_tokval(parser), "while"))
3481 return parse_while(parser, block, out);
3483 else if (!strcmp(parser_tokval(parser), "do"))
3485 return parse_dowhile(parser, block, out);
3487 else if (!strcmp(parser_tokval(parser), "for"))
3489 if (opts.standard == COMPILER_QCC) {
3490 if (parsewarning(parser, WARN_EXTENSIONS, "for loops are not recognized in the original Quake C standard, to enable try an alternate standard --std=?"))
3493 return parse_for(parser, block, out);
3495 else if (!strcmp(parser_tokval(parser), "break"))
3497 return parse_break_continue(parser, block, out, false);
3499 else if (!strcmp(parser_tokval(parser), "continue"))
3501 return parse_break_continue(parser, block, out, true);
3503 else if (!strcmp(parser_tokval(parser), "switch"))
3505 return parse_switch(parser, block, out);
3507 else if (!strcmp(parser_tokval(parser), "case") ||
3508 !strcmp(parser_tokval(parser), "default"))
3511 parseerror(parser, "unexpected 'case' label");
3516 else if (!strcmp(parser_tokval(parser), "goto"))
3518 return parse_goto(parser, out);
3520 else if (!strcmp(parser_tokval(parser), "typedef"))
3522 if (!parser_next(parser)) {
3523 parseerror(parser, "expected type definition after 'typedef'");
3526 return parse_typedef(parser);
3528 parseerror(parser, "Unexpected keyword");
3531 else if (parser->tok == '{')
3534 inner = parse_block(parser);
3537 *out = (ast_expression*)inner;
3540 else if (parser->tok == ':')
3544 if (!parser_next(parser)) {
3545 parseerror(parser, "expected label name");
3548 if (parser->tok != TOKEN_IDENT) {
3549 parseerror(parser, "label must be an identifier");
3552 label = (ast_label*)parser_find_label(parser, parser_tokval(parser));
3554 if (!label->undefined) {
3555 parseerror(parser, "label `%s` already defined", label->name);
3558 label->undefined = false;
3561 label = ast_label_new(parser_ctx(parser), parser_tokval(parser), false);
3562 vec_push(parser->labels, label);
3564 *out = (ast_expression*)label;
3565 if (!parser_next(parser)) {
3566 parseerror(parser, "parse error after label");
3569 for (i = 0; i < vec_size(parser->gotos); ++i) {
3570 if (!strcmp(parser->gotos[i]->name, label->name)) {
3571 ast_goto_set_label(parser->gotos[i], label);
3572 vec_remove(parser->gotos, i, 1);
3578 else if (parser->tok == ';')
3580 if (!parser_next(parser)) {
3581 parseerror(parser, "parse error after empty statement");
3588 ast_expression *exp = parse_expression(parser, false, false);
3592 if (!ast_side_effects(exp)) {
3593 if (genwarning(ast_ctx(exp), WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
3600 static bool parse_enum(parser_t *parser)
3603 ast_value **values = NULL;
3604 ast_value *var = NULL;
3607 ast_expression *old;
3609 if (!parser_next(parser) || parser->tok != '{') {
3610 parseerror(parser, "expected `{` after `enum` keyword");
3615 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
3616 if (parser->tok == '}') {
3617 /* allow an empty enum */
3620 parseerror(parser, "expected identifier or `}`");
3624 old = parser_find_field(parser, parser_tokval(parser));
3626 old = parser_find_global(parser, parser_tokval(parser));
3628 parseerror(parser, "value `%s` has already been declared here: %s:%i",
3629 parser_tokval(parser), ast_ctx(old).file, ast_ctx(old).line);
3633 var = ast_value_new(parser_ctx(parser), parser_tokval(parser), TYPE_FLOAT);
3634 vec_push(values, var);
3635 var->cvq = CV_CONST;
3636 var->hasvalue = true;
3637 var->constval.vfloat = num++;
3639 parser_addglobal(parser, var->name, (ast_expression*)var);
3641 if (!parser_next(parser)) {
3642 parseerror(parser, "expected `=`, `}` or comma after identifier");
3646 if (parser->tok == ',')
3648 if (parser->tok == '}')
3650 if (parser->tok != '=') {
3651 parseerror(parser, "expected `=`, `}` or comma after identifier");
3655 if (!parser_next(parser)) {
3656 parseerror(parser, "expected expression after `=`");
3660 /* We got a value! */
3661 old = parse_expression_leave(parser, true, false, false);
3662 asvalue = (ast_value*)old;
3663 if (!ast_istype(old, ast_value) || asvalue->cvq != CV_CONST || !asvalue->hasvalue) {
3664 compile_error(ast_ctx(var), "constant value or expression expected");
3667 num = (var->constval.vfloat = asvalue->constval.vfloat) + 1;
3669 if (parser->tok == '}')
3671 if (parser->tok != ',') {
3672 parseerror(parser, "expected `}` or comma after expression");
3677 if (parser->tok != '}') {
3678 parseerror(parser, "internal error: breaking without `}`");
3682 if (!parser_next(parser) || parser->tok != ';') {
3683 parseerror(parser, "expected semicolon after enumeration");
3687 if (!parser_next(parser)) {
3688 parseerror(parser, "parse error after enumeration");
3700 static bool parse_block_into(parser_t *parser, ast_block *block)
3704 parser_enterblock(parser);
3706 if (!parser_next(parser)) { /* skip the '{' */
3707 parseerror(parser, "expected function body");
3711 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
3713 ast_expression *expr = NULL;
3714 if (parser->tok == '}')
3717 if (!parse_statement(parser, block, &expr, false)) {
3718 /* parseerror(parser, "parse error"); */
3724 if (!ast_block_add_expr(block, expr)) {
3731 if (parser->tok != '}') {
3734 (void)parser_next(parser);
3738 if (!parser_leaveblock(parser))
3740 return retval && !!block;
3743 static ast_block* parse_block(parser_t *parser)
3746 block = ast_block_new(parser_ctx(parser));
3749 if (!parse_block_into(parser, block)) {
3750 ast_block_delete(block);
3756 static bool parse_statement_or_block(parser_t *parser, ast_expression **out)
3758 if (parser->tok == '{') {
3759 *out = (ast_expression*)parse_block(parser);
3762 return parse_statement(parser, NULL, out, false);
3765 static bool create_vector_members(ast_value *var, ast_member **me)
3768 size_t len = strlen(var->name);
3770 for (i = 0; i < 3; ++i) {
3771 char *name = (char*)mem_a(len+3);
3772 memcpy(name, var->name, len);
3774 name[len+1] = 'x'+i;
3776 me[i] = ast_member_new(ast_ctx(var), (ast_expression*)var, i, name);
3785 do { ast_member_delete(me[--i]); } while(i);
3789 static bool parse_function_body(parser_t *parser, ast_value *var)
3791 ast_block *block = NULL;
3796 ast_expression *framenum = NULL;
3797 ast_expression *nextthink = NULL;
3798 /* None of the following have to be deleted */
3799 ast_expression *fld_think = NULL, *fld_nextthink = NULL, *fld_frame = NULL;
3800 ast_expression *gbl_time = NULL, *gbl_self = NULL;
3801 bool has_frame_think;
3805 has_frame_think = false;
3806 old = parser->function;
3808 if (vec_size(parser->gotos) || vec_size(parser->labels)) {
3809 parseerror(parser, "gotos/labels leaking");
3813 if (!OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC) {
3814 if (parsewarning(parser, WARN_VARIADIC_FUNCTION,
3815 "variadic function with implementation will not be able to access additional parameters (try -fvariadic-args)"))
3821 if (parser->tok == '[') {
3822 /* got a frame definition: [ framenum, nextthink ]
3823 * this translates to:
3824 * self.frame = framenum;
3825 * self.nextthink = time + 0.1;
3826 * self.think = nextthink;
3830 fld_think = parser_find_field(parser, "think");
3831 fld_nextthink = parser_find_field(parser, "nextthink");
3832 fld_frame = parser_find_field(parser, "frame");
3833 if (!fld_think || !fld_nextthink || !fld_frame) {
3834 parseerror(parser, "cannot use [frame,think] notation without the required fields");
3835 parseerror(parser, "please declare the following entityfields: `frame`, `think`, `nextthink`");
3838 gbl_time = parser_find_global(parser, "time");
3839 gbl_self = parser_find_global(parser, "self");
3840 if (!gbl_time || !gbl_self) {
3841 parseerror(parser, "cannot use [frame,think] notation without the required globals");
3842 parseerror(parser, "please declare the following globals: `time`, `self`");
3846 if (!parser_next(parser))
3849 framenum = parse_expression_leave(parser, true, false, false);
3851 parseerror(parser, "expected a framenumber constant in[frame,think] notation");
3854 if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->hasvalue) {
3855 ast_unref(framenum);
3856 parseerror(parser, "framenumber in [frame,think] notation must be a constant");
3860 if (parser->tok != ',') {
3861 ast_unref(framenum);
3862 parseerror(parser, "expected comma after frame number in [frame,think] notation");
3863 parseerror(parser, "Got a %i\n", parser->tok);
3867 if (!parser_next(parser)) {
3868 ast_unref(framenum);
3872 if (parser->tok == TOKEN_IDENT && !parser_find_var(parser, parser_tokval(parser)))
3874 /* qc allows the use of not-yet-declared functions here
3875 * - this automatically creates a prototype */
3876 ast_value *thinkfunc;
3877 ast_expression *functype = fld_think->expression.next;
3879 thinkfunc = ast_value_new(parser_ctx(parser), parser_tokval(parser), functype->expression.vtype);
3880 if (!thinkfunc || !ast_type_adopt(thinkfunc, functype)) {
3881 ast_unref(framenum);
3882 parseerror(parser, "failed to create implicit prototype for `%s`", parser_tokval(parser));
3886 if (!parser_next(parser)) {
3887 ast_unref(framenum);
3888 ast_delete(thinkfunc);
3892 parser_addglobal(parser, thinkfunc->name, (ast_expression*)thinkfunc);
3894 nextthink = (ast_expression*)thinkfunc;
3897 nextthink = parse_expression_leave(parser, true, false, false);
3899 ast_unref(framenum);
3900 parseerror(parser, "expected a think-function in [frame,think] notation");
3905 if (!ast_istype(nextthink, ast_value)) {
3906 parseerror(parser, "think-function in [frame,think] notation must be a constant");
3910 if (retval && parser->tok != ']') {
3911 parseerror(parser, "expected closing `]` for [frame,think] notation");
3915 if (retval && !parser_next(parser)) {
3919 if (retval && parser->tok != '{') {
3920 parseerror(parser, "a function body has to be declared after a [frame,think] declaration");
3925 ast_unref(nextthink);
3926 ast_unref(framenum);
3930 has_frame_think = true;
3933 block = ast_block_new(parser_ctx(parser));
3935 parseerror(parser, "failed to allocate block");
3936 if (has_frame_think) {
3937 ast_unref(nextthink);
3938 ast_unref(framenum);
3943 if (has_frame_think) {
3945 ast_expression *self_frame;
3946 ast_expression *self_nextthink;
3947 ast_expression *self_think;
3948 ast_expression *time_plus_1;
3949 ast_store *store_frame;
3950 ast_store *store_nextthink;
3951 ast_store *store_think;
3953 ctx = parser_ctx(parser);
3954 self_frame = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_frame);
3955 self_nextthink = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_nextthink);
3956 self_think = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_think);
3958 time_plus_1 = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F,
3959 gbl_time, (ast_expression*)parser_const_float(parser, 0.1));
3961 if (!self_frame || !self_nextthink || !self_think || !time_plus_1) {
3962 if (self_frame) ast_delete(self_frame);
3963 if (self_nextthink) ast_delete(self_nextthink);
3964 if (self_think) ast_delete(self_think);
3965 if (time_plus_1) ast_delete(time_plus_1);
3971 store_frame = ast_store_new(ctx, INSTR_STOREP_F, self_frame, framenum);
3972 store_nextthink = ast_store_new(ctx, INSTR_STOREP_F, self_nextthink, time_plus_1);
3973 store_think = ast_store_new(ctx, INSTR_STOREP_FNC, self_think, nextthink);
3976 ast_delete(self_frame);
3979 if (!store_nextthink) {
3980 ast_delete(self_nextthink);
3984 ast_delete(self_think);
3988 if (store_frame) ast_delete(store_frame);
3989 if (store_nextthink) ast_delete(store_nextthink);
3990 if (store_think) ast_delete(store_think);
3993 if (!ast_block_add_expr(block, (ast_expression*)store_frame) ||
3994 !ast_block_add_expr(block, (ast_expression*)store_nextthink) ||
3995 !ast_block_add_expr(block, (ast_expression*)store_think))
4002 parseerror(parser, "failed to generate code for [frame,think]");
4003 ast_unref(nextthink);
4004 ast_unref(framenum);
4010 func = ast_function_new(ast_ctx(var), var->name, var);
4012 parseerror(parser, "failed to allocate function for `%s`", var->name);
4013 ast_block_delete(block);
4016 vec_push(parser->functions, func);
4018 parser_enterblock(parser);
4020 for (parami = 0; parami < vec_size(var->expression.params); ++parami) {
4022 ast_value *param = var->expression.params[parami];
4025 if (param->expression.vtype != TYPE_VECTOR &&
4026 (param->expression.vtype != TYPE_FIELD ||
4027 param->expression.next->expression.vtype != TYPE_VECTOR))
4032 if (!create_vector_members(param, me)) {
4033 ast_block_delete(block);
4037 for (e = 0; e < 3; ++e) {
4038 parser_addlocal(parser, me[e]->name, (ast_expression*)me[e]);
4039 ast_block_collect(block, (ast_expression*)me[e]);
4043 if (var->argcounter) {
4044 ast_value *argc = ast_value_new(ast_ctx(var), var->argcounter, TYPE_FLOAT);
4045 parser_addlocal(parser, argc->name, (ast_expression*)argc);
4049 if (OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC) {
4051 ast_value *varargs = ast_value_new(ast_ctx(var), "reserved:va_args", TYPE_ARRAY);
4052 varargs->expression.flags |= AST_FLAG_IS_VARARG;
4053 varargs->expression.next = (ast_expression*)ast_value_new(ast_ctx(var), NULL, TYPE_VECTOR);
4054 varargs->expression.count = 0;
4055 snprintf(name, sizeof(name), "%s##va##SET", var->name);
4056 if (!parser_create_array_setter_proto(parser, varargs, name)) {
4057 ast_delete(varargs);
4058 ast_block_delete(block);
4061 snprintf(name, sizeof(name), "%s##va##GET", var->name);
4062 if (!parser_create_array_getter_proto(parser, varargs, varargs->expression.next, name)) {
4063 ast_delete(varargs);
4064 ast_block_delete(block);
4067 func->varargs = varargs;
4070 parser->function = func;
4071 if (!parse_block_into(parser, block)) {
4072 ast_block_delete(block);
4076 vec_push(func->blocks, block);
4078 parser->function = old;
4079 if (!parser_leaveblock(parser))
4081 if (vec_size(parser->variables) != PARSER_HT_LOCALS) {
4082 parseerror(parser, "internal error: local scopes left");
4086 if (parser->tok == ';')
4087 return parser_next(parser);
4088 else if (opts.standard == COMPILER_QCC)
4089 parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)");
4093 (void)!parser_leaveblock(parser);
4094 vec_pop(parser->functions);
4095 ast_function_delete(func);
4096 var->constval.vfunc = NULL;
4099 parser->function = old;
4103 static ast_expression *array_accessor_split(
4108 ast_expression *left,
4109 ast_expression *right
4115 lex_ctx ctx = ast_ctx(array);
4117 if (!left || !right) {
4118 if (left) ast_delete(left);
4119 if (right) ast_delete(right);
4123 cmp = ast_binary_new(ctx, INSTR_LT,
4124 (ast_expression*)index,
4125 (ast_expression*)parser_const_float(parser, middle));
4129 parseerror(parser, "internal error: failed to create comparison for array setter");
4133 ifthen = ast_ifthen_new(ctx, (ast_expression*)cmp, left, right);
4135 ast_delete(cmp); /* will delete left and right */
4136 parseerror(parser, "internal error: failed to create conditional jump for array setter");
4140 return (ast_expression*)ifthen;
4143 static ast_expression *array_setter_node(parser_t *parser, ast_value *array, ast_value *index, ast_value *value, size_t from, size_t afterend)
4145 lex_ctx ctx = ast_ctx(array);
4147 if (from+1 == afterend) {
4148 /* set this value */
4151 ast_array_index *subscript;
4153 int assignop = type_store_instr[value->expression.vtype];
4155 if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR)
4156 assignop = INSTR_STORE_V;
4158 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
4162 st = ast_store_new(ctx, assignop, (ast_expression*)subscript, (ast_expression*)value);
4164 ast_delete(subscript);
4168 block = ast_block_new(ctx);
4174 if (!ast_block_add_expr(block, (ast_expression*)st)) {
4179 ret = ast_return_new(ctx, NULL);
4185 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
4190 return (ast_expression*)block;
4192 ast_expression *left, *right;
4193 size_t diff = afterend - from;
4194 size_t middle = from + diff/2;
4195 left = array_setter_node(parser, array, index, value, from, middle);
4196 right = array_setter_node(parser, array, index, value, middle, afterend);
4197 return array_accessor_split(parser, array, index, middle, left, right);
4201 static ast_expression *array_field_setter_node(
4210 lex_ctx ctx = ast_ctx(array);
4212 if (from+1 == afterend) {
4213 /* set this value */
4216 ast_entfield *entfield;
4217 ast_array_index *subscript;
4219 int assignop = type_storep_instr[value->expression.vtype];
4221 if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR)
4222 assignop = INSTR_STOREP_V;
4224 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
4228 subscript->expression.next = ast_type_copy(ast_ctx(subscript), (ast_expression*)subscript);
4229 subscript->expression.vtype = TYPE_FIELD;
4231 entfield = ast_entfield_new_force(ctx,
4232 (ast_expression*)entity,
4233 (ast_expression*)subscript,
4234 (ast_expression*)subscript);
4236 ast_delete(subscript);
4240 st = ast_store_new(ctx, assignop, (ast_expression*)entfield, (ast_expression*)value);
4242 ast_delete(entfield);
4246 block = ast_block_new(ctx);
4252 if (!ast_block_add_expr(block, (ast_expression*)st)) {
4257 ret = ast_return_new(ctx, NULL);
4263 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
4268 return (ast_expression*)block;
4270 ast_expression *left, *right;
4271 size_t diff = afterend - from;
4272 size_t middle = from + diff/2;
4273 left = array_field_setter_node(parser, array, entity, index, value, from, middle);
4274 right = array_field_setter_node(parser, array, entity, index, value, middle, afterend);
4275 return array_accessor_split(parser, array, index, middle, left, right);
4279 static ast_expression *array_getter_node(parser_t *parser, ast_value *array, ast_value *index, size_t from, size_t afterend)
4281 lex_ctx ctx = ast_ctx(array);
4283 if (from+1 == afterend) {
4285 ast_array_index *subscript;
4287 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
4291 ret = ast_return_new(ctx, (ast_expression*)subscript);
4293 ast_delete(subscript);
4297 return (ast_expression*)ret;
4299 ast_expression *left, *right;
4300 size_t diff = afterend - from;
4301 size_t middle = from + diff/2;
4302 left = array_getter_node(parser, array, index, from, middle);
4303 right = array_getter_node(parser, array, index, middle, afterend);
4304 return array_accessor_split(parser, array, index, middle, left, right);
4308 static bool parser_create_array_accessor(parser_t *parser, ast_value *array, const char *funcname, ast_value **out)
4310 ast_function *func = NULL;
4311 ast_value *fval = NULL;
4312 ast_block *body = NULL;
4314 fval = ast_value_new(ast_ctx(array), funcname, TYPE_FUNCTION);
4316 parseerror(parser, "failed to create accessor function value");
4320 func = ast_function_new(ast_ctx(array), funcname, fval);
4323 parseerror(parser, "failed to create accessor function node");
4327 body = ast_block_new(ast_ctx(array));
4329 parseerror(parser, "failed to create block for array accessor");
4335 vec_push(func->blocks, body);
4338 vec_push(parser->accessors, fval);
4343 static ast_value* parser_create_array_setter_proto(parser_t *parser, ast_value *array, const char *funcname)
4345 ast_value *index = NULL;
4346 ast_value *value = NULL;
4350 if (!ast_istype(array->expression.next, ast_value)) {
4351 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4355 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4357 func = fval->constval.vfunc;
4358 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
4360 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4361 value = ast_value_copy((ast_value*)array->expression.next);
4363 if (!index || !value) {
4364 parseerror(parser, "failed to create locals for array accessor");
4367 (void)!ast_value_set_name(value, "value"); /* not important */
4368 vec_push(fval->expression.params, index);
4369 vec_push(fval->expression.params, value);
4371 array->setter = fval;
4374 if (index) ast_delete(index);
4375 if (value) ast_delete(value);
4381 static bool parser_create_array_setter_impl(parser_t *parser, ast_value *array)
4383 ast_expression *root = NULL;
4384 root = array_setter_node(parser, array,
4385 array->setter->expression.params[0],
4386 array->setter->expression.params[1],
4387 0, array->expression.count);
4389 parseerror(parser, "failed to build accessor search tree");
4392 if (!ast_block_add_expr(array->setter->constval.vfunc->blocks[0], root)) {
4399 static bool parser_create_array_setter(parser_t *parser, ast_value *array, const char *funcname)
4401 if (!parser_create_array_setter_proto(parser, array, funcname))
4403 return parser_create_array_setter_impl(parser, array);
4406 static bool parser_create_array_field_setter(parser_t *parser, ast_value *array, const char *funcname)
4408 ast_expression *root = NULL;
4409 ast_value *entity = NULL;
4410 ast_value *index = NULL;
4411 ast_value *value = NULL;
4415 if (!ast_istype(array->expression.next, ast_value)) {
4416 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4420 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4422 func = fval->constval.vfunc;
4423 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
4425 entity = ast_value_new(ast_ctx(array), "entity", TYPE_ENTITY);
4426 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4427 value = ast_value_copy((ast_value*)array->expression.next);
4428 if (!entity || !index || !value) {
4429 parseerror(parser, "failed to create locals for array accessor");
4432 (void)!ast_value_set_name(value, "value"); /* not important */
4433 vec_push(fval->expression.params, entity);
4434 vec_push(fval->expression.params, index);
4435 vec_push(fval->expression.params, value);
4437 root = array_field_setter_node(parser, array, entity, index, value, 0, array->expression.count);
4439 parseerror(parser, "failed to build accessor search tree");
4443 array->setter = fval;
4444 return ast_block_add_expr(func->blocks[0], root);
4446 if (entity) ast_delete(entity);
4447 if (index) ast_delete(index);
4448 if (value) ast_delete(value);
4449 if (root) ast_delete(root);
4455 static ast_value* parser_create_array_getter_proto(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
4457 ast_value *index = NULL;
4461 /* NOTE: checking array->expression.next rather than elemtype since
4462 * for fields elemtype is a temporary fieldtype.
4464 if (!ast_istype(array->expression.next, ast_value)) {
4465 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4469 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4471 func = fval->constval.vfunc;
4472 fval->expression.next = ast_type_copy(ast_ctx(array), elemtype);
4474 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4477 parseerror(parser, "failed to create locals for array accessor");
4480 vec_push(fval->expression.params, index);
4482 array->getter = fval;
4485 if (index) ast_delete(index);
4491 static bool parser_create_array_getter_impl(parser_t *parser, ast_value *array)
4493 ast_expression *root = NULL;
4495 root = array_getter_node(parser, array, array->getter->expression.params[0], 0, array->expression.count);
4497 parseerror(parser, "failed to build accessor search tree");
4500 if (!ast_block_add_expr(array->getter->constval.vfunc->blocks[0], root)) {
4507 static bool parser_create_array_getter(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
4509 if (!parser_create_array_getter_proto(parser, array, elemtype, funcname))
4511 return parser_create_array_getter_impl(parser, array);
4514 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
4515 static ast_value *parse_parameter_list(parser_t *parser, ast_value *var)
4523 bool variadic = false;
4524 ast_value *varparam = NULL;
4525 char *argcounter = NULL;
4527 ctx = parser_ctx(parser);
4529 /* for the sake of less code we parse-in in this function */
4530 if (!parser_next(parser)) {
4531 parseerror(parser, "expected parameter list");
4537 /* parse variables until we hit a closing paren */
4538 while (parser->tok != ')') {
4540 /* there must be commas between them */
4541 if (parser->tok != ',') {
4542 parseerror(parser, "expected comma or end of parameter list");
4545 if (!parser_next(parser)) {
4546 parseerror(parser, "expected parameter");
4552 if (parser->tok == TOKEN_DOTS) {
4553 /* '...' indicates a varargs function */
4555 if (!parser_next(parser) || (parser->tok != ')' && parser->tok != TOKEN_IDENT)) {
4556 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4559 if (parser->tok == TOKEN_IDENT) {
4560 argcounter = util_strdup(parser_tokval(parser));
4561 if (!parser_next(parser) || parser->tok != ')') {
4562 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4569 /* for anything else just parse a typename */
4570 param = parse_typename(parser, NULL, NULL);
4573 vec_push(params, param);
4574 if (param->expression.vtype >= TYPE_VARIANT) {
4575 char tname[1024]; /* typename is reserved in C++ */
4576 ast_type_to_string((ast_expression*)param, tname, sizeof(tname));
4577 parseerror(parser, "type not supported as part of a parameter list: %s", tname);
4580 /* type-restricted varargs */
4581 if (parser->tok == TOKEN_DOTS) {
4583 varparam = vec_last(params);
4585 if (!parser_next(parser) || (parser->tok != ')' && parser->tok != TOKEN_IDENT)) {
4586 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4589 if (parser->tok == TOKEN_IDENT) {
4590 argcounter = util_strdup(parser_tokval(parser));
4591 if (!parser_next(parser) || parser->tok != ')') {
4592 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4600 if (vec_size(params) == 1 && params[0]->expression.vtype == TYPE_VOID)
4604 if (vec_size(params) > 8 && opts.standard == COMPILER_QCC)
4605 (void)!parsewarning(parser, WARN_EXTENSIONS, "more than 8 parameters are not supported by this standard");
4608 if (!parser_next(parser)) {
4609 parseerror(parser, "parse error after typename");
4613 /* now turn 'var' into a function type */
4614 fval = ast_value_new(ctx, "<type()>", TYPE_FUNCTION);
4615 fval->expression.next = (ast_expression*)var;
4617 fval->expression.flags |= AST_FLAG_VARIADIC;
4620 var->expression.params = params;
4621 var->expression.varparam = (ast_expression*)varparam;
4622 var->argcounter = argcounter;
4631 for (i = 0; i < vec_size(params); ++i)
4632 ast_delete(params[i]);
4637 static ast_value *parse_arraysize(parser_t *parser, ast_value *var)
4639 ast_expression *cexp;
4640 ast_value *cval, *tmp;
4643 ctx = parser_ctx(parser);
4645 if (!parser_next(parser)) {
4647 parseerror(parser, "expected array-size");
4651 cexp = parse_expression_leave(parser, true, false, false);
4653 if (!cexp || !ast_istype(cexp, ast_value)) {
4657 parseerror(parser, "expected array-size as constant positive integer");
4660 cval = (ast_value*)cexp;
4662 tmp = ast_value_new(ctx, "<type[]>", TYPE_ARRAY);
4663 tmp->expression.next = (ast_expression*)var;
4666 if (cval->expression.vtype == TYPE_INTEGER)
4667 tmp->expression.count = cval->constval.vint;
4668 else if (cval->expression.vtype == TYPE_FLOAT)
4669 tmp->expression.count = cval->constval.vfloat;
4673 parseerror(parser, "array-size must be a positive integer constant");
4678 if (parser->tok != ']') {
4680 parseerror(parser, "expected ']' after array-size");
4683 if (!parser_next(parser)) {
4685 parseerror(parser, "error after parsing array size");
4691 /* Parse a complete typename.
4692 * for single-variables (ie. function parameters or typedefs) storebase should be NULL
4693 * but when parsing variables separated by comma
4694 * 'storebase' should point to where the base-type should be kept.
4695 * The base type makes up every bit of type information which comes *before* the
4698 * The following will be parsed in its entirety:
4700 * The 'basetype' in this case is 'void()'
4701 * and if there's a comma after it, say:
4703 * then the type-information 'void()' can be stored in 'storebase'
4705 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef)
4707 ast_value *var, *tmp;
4710 const char *name = NULL;
4711 bool isfield = false;
4712 bool wasarray = false;
4713 size_t morefields = 0;
4715 ctx = parser_ctx(parser);
4717 /* types may start with a dot */
4718 if (parser->tok == '.') {
4720 /* if we parsed a dot we need a typename now */
4721 if (!parser_next(parser)) {
4722 parseerror(parser, "expected typename for field definition");
4726 /* Further dots are handled seperately because they won't be part of the
4729 while (parser->tok == '.') {
4731 if (!parser_next(parser)) {
4732 parseerror(parser, "expected typename for field definition");
4737 if (parser->tok == TOKEN_IDENT)
4738 cached_typedef = parser_find_typedef(parser, parser_tokval(parser), 0);
4739 if (!cached_typedef && parser->tok != TOKEN_TYPENAME) {
4740 parseerror(parser, "expected typename");
4744 /* generate the basic type value */
4745 if (cached_typedef) {
4746 var = ast_value_copy(cached_typedef);
4747 ast_value_set_name(var, "<type(from_def)>");
4749 var = ast_value_new(ctx, "<type>", parser_token(parser)->constval.t);
4751 for (; morefields; --morefields) {
4752 tmp = ast_value_new(ctx, "<.type>", TYPE_FIELD);
4753 tmp->expression.next = (ast_expression*)var;
4757 /* do not yet turn into a field - remember:
4758 * .void() foo; is a field too
4759 * .void()() foo; is a function
4763 if (!parser_next(parser)) {
4765 parseerror(parser, "parse error after typename");
4769 /* an opening paren now starts the parameter-list of a function
4770 * this is where original-QC has parameter lists.
4771 * We allow a single parameter list here.
4772 * Much like fteqcc we don't allow `float()() x`
4774 if (parser->tok == '(') {
4775 var = parse_parameter_list(parser, var);
4780 /* store the base if requested */
4782 *storebase = ast_value_copy(var);
4784 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
4785 tmp->expression.next = (ast_expression*)*storebase;
4790 /* there may be a name now */
4791 if (parser->tok == TOKEN_IDENT) {
4792 name = util_strdup(parser_tokval(parser));
4794 if (!parser_next(parser)) {
4796 parseerror(parser, "error after variable or field declaration");
4801 /* now this may be an array */
4802 if (parser->tok == '[') {
4804 var = parse_arraysize(parser, var);
4809 /* This is the point where we can turn it into a field */
4811 /* turn it into a field if desired */
4812 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
4813 tmp->expression.next = (ast_expression*)var;
4817 /* now there may be function parens again */
4818 if (parser->tok == '(' && opts.standard == COMPILER_QCC)
4819 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4820 if (parser->tok == '(' && wasarray)
4821 parseerror(parser, "arrays as part of a return type is not supported");
4822 while (parser->tok == '(') {
4823 var = parse_parameter_list(parser, var);
4831 /* finally name it */
4833 if (!ast_value_set_name(var, name)) {
4835 parseerror(parser, "internal error: failed to set name");
4838 /* free the name, ast_value_set_name duplicates */
4845 static bool parse_typedef(parser_t *parser)
4847 ast_value *typevar, *oldtype;
4848 ast_expression *old;
4850 typevar = parse_typename(parser, NULL, NULL);
4855 if ( (old = parser_find_var(parser, typevar->name)) ) {
4856 parseerror(parser, "cannot define a type with the same name as a variable: %s\n"
4857 " -> `%s` has been declared here: %s:%i",
4858 typevar->name, ast_ctx(old).file, ast_ctx(old).line);
4859 ast_delete(typevar);
4863 if ( (oldtype = parser_find_typedef(parser, typevar->name, vec_last(parser->_blocktypedefs))) ) {
4864 parseerror(parser, "type `%s` has already been declared here: %s:%i",
4865 typevar->name, ast_ctx(oldtype).file, ast_ctx(oldtype).line);
4866 ast_delete(typevar);
4870 vec_push(parser->_typedefs, typevar);
4871 util_htset(vec_last(parser->typedefs), typevar->name, typevar);
4873 if (parser->tok != ';') {
4874 parseerror(parser, "expected semicolon after typedef");
4877 if (!parser_next(parser)) {
4878 parseerror(parser, "parse error after typedef");
4885 static const char *cvq_to_str(int cvq) {
4887 case CV_NONE: return "none";
4888 case CV_VAR: return "`var`";
4889 case CV_CONST: return "`const`";
4890 default: return "<INVALID>";
4894 static bool parser_check_qualifiers(parser_t *parser, const ast_value *var, const ast_value *proto)
4897 if (proto->cvq != var->cvq) {
4898 if (!(proto->cvq == CV_CONST && var->cvq == CV_NONE &&
4899 !OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
4900 parser->tok == '='))
4902 return !parsewarning(parser, WARN_DIFFERENT_QUALIFIERS,
4903 "`%s` declared with different qualifiers: %s\n"
4904 " -> previous declaration here: %s:%i uses %s",
4905 var->name, cvq_to_str(var->cvq),
4906 ast_ctx(proto).file, ast_ctx(proto).line,
4907 cvq_to_str(proto->cvq));
4910 av = (var ->expression.flags & AST_FLAG_NORETURN);
4911 ao = (proto->expression.flags & AST_FLAG_NORETURN);
4913 return !parsewarning(parser, WARN_DIFFERENT_ATTRIBUTES,
4914 "`%s` declared with different attributes%s\n"
4915 " -> previous declaration here: %s:%i",
4916 var->name, (av ? ": noreturn" : ""),
4917 ast_ctx(proto).file, ast_ctx(proto).line,
4918 (ao ? ": noreturn" : ""));
4923 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)
4927 ast_expression *old;
4931 ast_value *basetype = NULL;
4933 bool isparam = false;
4934 bool isvector = false;
4935 bool cleanvar = true;
4936 bool wasarray = false;
4940 if (!localblock && is_static)
4941 parseerror(parser, "`static` qualifier is not supported in global scope");
4943 /* get the first complete variable */
4944 var = parse_typename(parser, &basetype, cached_typedef);
4947 ast_delete(basetype);
4955 /* Part 0: finish the type */
4956 if (parser->tok == '(') {
4957 if (opts.standard == COMPILER_QCC)
4958 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4959 var = parse_parameter_list(parser, var);
4965 /* we only allow 1-dimensional arrays */
4966 if (parser->tok == '[') {
4968 var = parse_arraysize(parser, var);
4974 if (parser->tok == '(' && wasarray) {
4975 parseerror(parser, "arrays as part of a return type is not supported");
4976 /* we'll still parse the type completely for now */
4978 /* for functions returning functions */
4979 while (parser->tok == '(') {
4980 if (opts.standard == COMPILER_QCC)
4981 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4982 var = parse_parameter_list(parser, var);
4989 var->cvq = qualifier;
4990 var->expression.flags |= qflags;
4991 if (var->expression.flags & AST_FLAG_DEPRECATED)
4992 var->desc = vstring;
4995 * check for validity: (end_sys_..., multiple-definitions, prototypes, ...)
4996 * Also: if there was a prototype, `var` will be deleted and set to `proto` which
4997 * is then filled with the previous definition and the parameter-names replaced.
4999 if (!strcmp(var->name, "nil")) {
5000 if (OPTS_FLAG(UNTYPED_NIL)) {
5001 if (!localblock || !OPTS_FLAG(PERMISSIVE))
5002 parseerror(parser, "name `nil` not allowed (try -fpermissive)");
5004 (void)!parsewarning(parser, WARN_RESERVED_NAMES, "variable name `nil` is reserved");
5007 /* Deal with end_sys_ vars */
5009 if (!strcmp(var->name, "end_sys_globals")) {
5011 parser->crc_globals = vec_size(parser->globals);
5014 else if (!strcmp(var->name, "end_sys_fields")) {
5016 parser->crc_fields = vec_size(parser->fields);
5019 if (was_end && var->expression.vtype == TYPE_FIELD) {
5020 if (parsewarning(parser, WARN_END_SYS_FIELDS,
5021 "global '%s' hint should not be a field",
5022 parser_tokval(parser)))
5029 if (!nofields && var->expression.vtype == TYPE_FIELD)
5031 /* deal with field declarations */
5032 old = parser_find_field(parser, var->name);
5034 if (parsewarning(parser, WARN_FIELD_REDECLARED, "field `%s` already declared here: %s:%i",
5035 var->name, ast_ctx(old).file, (int)ast_ctx(old).line))
5044 parseerror(parser, "field `%s` already declared here: %s:%i",
5045 var->name, ast_ctx(old).file, ast_ctx(old).line);
5050 if ((opts.standard == COMPILER_QCC || opts.standard == COMPILER_FTEQCC) &&
5051 (old = parser_find_global(parser, var->name)))
5053 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
5054 parseerror(parser, "field `%s` already declared here: %s:%i",
5055 var->name, ast_ctx(old).file, ast_ctx(old).line);
5062 /* deal with other globals */
5063 old = parser_find_global(parser, var->name);
5064 if (old && var->expression.vtype == TYPE_FUNCTION && old->expression.vtype == TYPE_FUNCTION)
5066 /* This is a function which had a prototype */
5067 if (!ast_istype(old, ast_value)) {
5068 parseerror(parser, "internal error: prototype is not an ast_value");
5072 proto = (ast_value*)old;
5073 proto->desc = var->desc;
5074 if (!ast_compare_type((ast_expression*)proto, (ast_expression*)var)) {
5075 parseerror(parser, "conflicting types for `%s`, previous declaration was here: %s:%i",
5077 ast_ctx(proto).file, ast_ctx(proto).line);
5081 /* we need the new parameter-names */
5082 for (i = 0; i < vec_size(proto->expression.params); ++i)
5083 ast_value_set_name(proto->expression.params[i], var->expression.params[i]->name);
5084 if (!parser_check_qualifiers(parser, var, proto)) {
5091 proto->expression.flags |= var->expression.flags;
5099 if (parsewarning(parser, WARN_DOUBLE_DECLARATION,
5100 "global `%s` already declared here: %s:%i",
5101 var->name, ast_ctx(old).file, ast_ctx(old).line))
5106 proto = (ast_value*)old;
5107 if (!ast_istype(old, ast_value)) {
5108 parseerror(parser, "internal error: not an ast_value");
5113 if (!parser_check_qualifiers(parser, var, proto)) {
5118 proto->expression.flags |= var->expression.flags;
5122 if (opts.standard == COMPILER_QCC &&
5123 (old = parser_find_field(parser, var->name)))
5125 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
5126 parseerror(parser, "global `%s` already declared here: %s:%i",
5127 var->name, ast_ctx(old).file, ast_ctx(old).line);
5134 else /* it's not a global */
5136 old = parser_find_local(parser, var->name, vec_size(parser->variables)-1, &isparam);
5137 if (old && !isparam) {
5138 parseerror(parser, "local `%s` already declared here: %s:%i",
5139 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
5143 old = parser_find_local(parser, var->name, 0, &isparam);
5144 if (old && isparam) {
5145 if (parsewarning(parser, WARN_LOCAL_SHADOWS,
5146 "local `%s` is shadowing a parameter", var->name))
5148 parseerror(parser, "local `%s` already declared here: %s:%i",
5149 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
5153 if (opts.standard != COMPILER_GMQCC) {
5161 /* in a noref section we simply bump the usecount */
5162 if (noref || parser->noref)
5166 * Create the global/local, and deal with vector types.
5169 if (var->expression.vtype == TYPE_VECTOR)
5171 else if (var->expression.vtype == TYPE_FIELD &&
5172 var->expression.next->expression.vtype == TYPE_VECTOR)
5176 if (!create_vector_members(var, me)) {
5183 /* deal with global variables, fields, functions */
5184 if (!nofields && var->expression.vtype == TYPE_FIELD && parser->tok != '=') {
5185 var->isfield = true;
5186 vec_push(parser->fields, (ast_expression*)var);
5187 util_htset(parser->htfields, var->name, var);
5189 for (i = 0; i < 3; ++i) {
5190 vec_push(parser->fields, (ast_expression*)me[i]);
5191 util_htset(parser->htfields, me[i]->name, me[i]);
5196 parser_addglobal(parser, var->name, (ast_expression*)var);
5198 for (i = 0; i < 3; ++i) {
5199 parser_addglobal(parser, me[i]->name, (ast_expression*)me[i]);
5205 /* a static adds itself to be generated like any other global
5206 * but is added to the local namespace instead
5208 char *defname = NULL;
5209 size_t prefix_len, ln;
5211 ln = strlen(parser->function->name);
5212 vec_append(defname, ln, parser->function->name);
5214 vec_append(defname, 2, "::");
5215 /* remember the length up to here */
5216 prefix_len = vec_size(defname);
5218 /* Add it to the local scope */
5219 util_htset(vec_last(parser->variables), var->name, (void*)var);
5223 vec_last(parser->correct_variables),
5224 &vec_last(parser->correct_variables_score),
5228 /* now rename the global */
5229 ln = strlen(var->name);
5230 vec_append(defname, ln, var->name);
5231 ast_value_set_name(var, defname);
5233 /* push it to the to-be-generated globals */
5234 vec_push(parser->globals, (ast_expression*)var);
5236 /* same game for the vector members */
5238 for (i = 0; i < 3; ++i) {
5239 util_htset(vec_last(parser->variables), me[i]->name, (void*)(me[i]));
5243 vec_last(parser->correct_variables),
5244 &vec_last(parser->correct_variables_score),
5248 vec_shrinkto(defname, prefix_len);
5249 ln = strlen(me[i]->name);
5250 vec_append(defname, ln, me[i]->name);
5251 ast_member_set_name(me[i], defname);
5253 vec_push(parser->globals, (ast_expression*)me[i]);
5258 vec_push(localblock->locals, var);
5259 parser_addlocal(parser, var->name, (ast_expression*)var);
5261 for (i = 0; i < 3; ++i) {
5262 parser_addlocal(parser, me[i]->name, (ast_expression*)me[i]);
5263 ast_block_collect(localblock, (ast_expression*)me[i]);
5269 me[0] = me[1] = me[2] = NULL;
5274 if (var->expression.vtype == TYPE_ARRAY) {
5276 snprintf(name, sizeof(name), "%s##SET", var->name);
5277 if (!parser_create_array_setter(parser, var, name))
5279 snprintf(name, sizeof(name), "%s##GET", var->name);
5280 if (!parser_create_array_getter(parser, var, var->expression.next, name))
5283 else if (!localblock && !nofields &&
5284 var->expression.vtype == TYPE_FIELD &&
5285 var->expression.next->expression.vtype == TYPE_ARRAY)
5288 ast_expression *telem;
5290 ast_value *array = (ast_value*)var->expression.next;
5292 if (!ast_istype(var->expression.next, ast_value)) {
5293 parseerror(parser, "internal error: field element type must be an ast_value");
5297 snprintf(name, sizeof(name), "%s##SETF", var->name);
5298 if (!parser_create_array_field_setter(parser, array, name))
5301 telem = ast_type_copy(ast_ctx(var), array->expression.next);
5302 tfield = ast_value_new(ast_ctx(var), "<.type>", TYPE_FIELD);
5303 tfield->expression.next = telem;
5304 snprintf(name, sizeof(name), "%s##GETFP", var->name);
5305 if (!parser_create_array_getter(parser, array, (ast_expression*)tfield, name)) {
5313 if (parser->tok == ';') {
5314 ast_delete(basetype);
5315 if (!parser_next(parser)) {
5316 parseerror(parser, "error after variable declaration");
5322 if (parser->tok == ',')
5326 if (!var || (!localblock && !nofields && basetype->expression.vtype == TYPE_FIELD)) {
5329 parseerror(parser, "missing comma or semicolon while parsing variables");
5333 if (localblock && opts.standard == COMPILER_QCC) {
5334 if (parsewarning(parser, WARN_LOCAL_CONSTANTS,
5335 "initializing expression turns variable `%s` into a constant in this standard",
5342 if (parser->tok != '{') {
5343 if (parser->tok != '=') {
5344 parseerror(parser, "missing semicolon or initializer, got: `%s`", parser_tokval(parser));
5348 if (!parser_next(parser)) {
5349 parseerror(parser, "error parsing initializer");
5353 else if (opts.standard == COMPILER_QCC) {
5354 parseerror(parser, "expected '=' before function body in this standard");
5357 if (parser->tok == '#') {
5358 ast_function *func = NULL;
5361 parseerror(parser, "cannot declare builtins within functions");
5364 if (var->expression.vtype != TYPE_FUNCTION) {
5365 parseerror(parser, "unexpected builtin number, '%s' is not a function", var->name);
5368 if (!parser_next(parser)) {
5369 parseerror(parser, "expected builtin number");
5372 if (parser->tok != TOKEN_INTCONST) {
5373 parseerror(parser, "builtin number must be an integer constant");
5376 if (parser_token(parser)->constval.i < 0) {
5377 parseerror(parser, "builtin number must be an integer greater than zero");
5381 if (var->hasvalue) {
5382 (void)!parsewarning(parser, WARN_DOUBLE_DECLARATION,
5383 "builtin `%s` has already been defined\n"
5384 " -> previous declaration here: %s:%i",
5385 var->name, ast_ctx(var).file, (int)ast_ctx(var).line);
5389 func = ast_function_new(ast_ctx(var), var->name, var);
5391 parseerror(parser, "failed to allocate function for `%s`", var->name);
5394 vec_push(parser->functions, func);
5396 func->builtin = -parser_token(parser)->constval.i-1;
5399 if (!parser_next(parser)) {
5400 parseerror(parser, "expected comma or semicolon");
5402 ast_function_delete(func);
5403 var->constval.vfunc = NULL;
5407 else if (parser->tok == '{' || parser->tok == '[')
5410 parseerror(parser, "cannot declare functions within functions");
5415 ast_ctx(proto) = parser_ctx(parser);
5417 if (!parse_function_body(parser, var))
5419 ast_delete(basetype);
5420 for (i = 0; i < vec_size(parser->gotos); ++i)
5421 parseerror(parser, "undefined label: `%s`", parser->gotos[i]->name);
5422 vec_free(parser->gotos);
5423 vec_free(parser->labels);
5426 ast_expression *cexp;
5429 cexp = parse_expression_leave(parser, true, false, false);
5434 cval = (ast_value*)cexp;
5435 if (cval != parser->nil &&
5436 (!ast_istype(cval, ast_value) || ((!cval->hasvalue || cval->cvq != CV_CONST) && !cval->isfield))
5439 parseerror(parser, "cannot initialize a global constant variable with a non-constant expression");
5443 if (!OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
5444 qualifier != CV_VAR)
5446 var->cvq = CV_CONST;
5448 if (cval == parser->nil)
5449 var->expression.flags |= AST_FLAG_INITIALIZED;
5452 var->hasvalue = true;
5453 if (cval->expression.vtype == TYPE_STRING)
5454 var->constval.vstring = parser_strdup(cval->constval.vstring);
5455 else if (cval->expression.vtype == TYPE_FIELD)
5456 var->constval.vfield = cval;
5458 memcpy(&var->constval, &cval->constval, sizeof(var->constval));
5464 shunt sy = { NULL, NULL };
5467 vec_push(sy.out, syexp(ast_ctx(var), (ast_expression*)var));
5468 vec_push(sy.out, syexp(ast_ctx(cexp), (ast_expression*)cexp));
5469 vec_push(sy.ops, syop(ast_ctx(var), parser->assign_op));
5470 if (!parser_sy_apply_operator(parser, &sy))
5473 if (vec_size(sy.out) != 1 && vec_size(sy.ops) != 0)
5474 parseerror(parser, "internal error: leaked operands");
5475 if (!ast_block_add_expr(localblock, (ast_expression*)sy.out[0].out))
5485 if (parser->tok == ',') {
5486 if (!parser_next(parser)) {
5487 parseerror(parser, "expected another variable");
5491 if (parser->tok != TOKEN_IDENT) {
5492 parseerror(parser, "expected another variable");
5495 var = ast_value_copy(basetype);
5497 ast_value_set_name(var, parser_tokval(parser));
5498 if (!parser_next(parser)) {
5499 parseerror(parser, "error parsing variable declaration");
5505 if (parser->tok != ';') {
5506 parseerror(parser, "missing semicolon after variables");
5510 if (!parser_next(parser)) {
5511 parseerror(parser, "parse error after variable declaration");
5515 ast_delete(basetype);
5519 if (cleanvar && var)
5521 ast_delete(basetype);
5525 ast_delete(basetype);
5526 if (cleanvar && var)
5528 if (me[0]) ast_member_delete(me[0]);
5529 if (me[1]) ast_member_delete(me[1]);
5530 if (me[2]) ast_member_delete(me[2]);
5534 static bool parser_global_statement(parser_t *parser)
5538 bool is_static = false;
5539 uint32_t qflags = 0;
5540 ast_value *istype = NULL;
5541 char *vstring = NULL;
5543 if (parser->tok == TOKEN_IDENT)
5544 istype = parser_find_typedef(parser, parser_tokval(parser), 0);
5546 if (istype || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
5548 return parse_variable(parser, NULL, false, CV_NONE, istype, false, false, 0, NULL);
5550 else if (parse_qualifiers(parser, false, &cvq, &noref, &is_static, &qflags, &vstring))
5552 if (cvq == CV_WRONG)
5554 return parse_variable(parser, NULL, true, cvq, NULL, noref, is_static, qflags, vstring);
5556 else if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "enum"))
5558 return parse_enum(parser);
5560 else if (parser->tok == TOKEN_KEYWORD)
5562 if (!strcmp(parser_tokval(parser), "typedef")) {
5563 if (!parser_next(parser)) {
5564 parseerror(parser, "expected type definition after 'typedef'");
5567 return parse_typedef(parser);
5569 parseerror(parser, "unrecognized keyword `%s`", parser_tokval(parser));
5572 else if (parser->tok == '#')
5574 return parse_pragma(parser);
5576 else if (parser->tok == '$')
5578 if (!parser_next(parser)) {
5579 parseerror(parser, "parse error");
5585 parseerror(parser, "unexpected token: %s", parser->lex->tok.value);
5591 static uint16_t progdefs_crc_sum(uint16_t old, const char *str)
5593 return util_crc16(old, str, strlen(str));
5596 static void progdefs_crc_file(const char *str)
5598 /* write to progdefs.h here */
5602 static uint16_t progdefs_crc_both(uint16_t old, const char *str)
5604 old = progdefs_crc_sum(old, str);
5605 progdefs_crc_file(str);
5609 static void generate_checksum(parser_t *parser)
5611 uint16_t crc = 0xFFFF;
5615 crc = progdefs_crc_both(crc, "\n/* file generated by qcc, do not modify */\n\ntypedef struct\n{");
5616 crc = progdefs_crc_sum(crc, "\tint\tpad[28];\n");
5618 progdefs_crc_file("\tint\tpad;\n");
5619 progdefs_crc_file("\tint\tofs_return[3];\n");
5620 progdefs_crc_file("\tint\tofs_parm0[3];\n");
5621 progdefs_crc_file("\tint\tofs_parm1[3];\n");
5622 progdefs_crc_file("\tint\tofs_parm2[3];\n");
5623 progdefs_crc_file("\tint\tofs_parm3[3];\n");
5624 progdefs_crc_file("\tint\tofs_parm4[3];\n");
5625 progdefs_crc_file("\tint\tofs_parm5[3];\n");
5626 progdefs_crc_file("\tint\tofs_parm6[3];\n");
5627 progdefs_crc_file("\tint\tofs_parm7[3];\n");
5629 for (i = 0; i < parser->crc_globals; ++i) {
5630 if (!ast_istype(parser->globals[i], ast_value))
5632 value = (ast_value*)(parser->globals[i]);
5633 switch (value->expression.vtype) {
5634 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
5635 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
5636 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
5637 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
5639 crc = progdefs_crc_both(crc, "\tint\t");
5642 crc = progdefs_crc_both(crc, value->name);
5643 crc = progdefs_crc_both(crc, ";\n");
5645 crc = progdefs_crc_both(crc, "} globalvars_t;\n\ntypedef struct\n{\n");
5646 for (i = 0; i < parser->crc_fields; ++i) {
5647 if (!ast_istype(parser->fields[i], ast_value))
5649 value = (ast_value*)(parser->fields[i]);
5650 switch (value->expression.next->expression.vtype) {
5651 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
5652 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
5653 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
5654 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
5656 crc = progdefs_crc_both(crc, "\tint\t");
5659 crc = progdefs_crc_both(crc, value->name);
5660 crc = progdefs_crc_both(crc, ";\n");
5662 crc = progdefs_crc_both(crc, "} entvars_t;\n\n");
5667 static parser_t *parser;
5674 parser = (parser_t*)mem_a(sizeof(parser_t));
5678 memset(parser, 0, sizeof(*parser));
5680 for (i = 0; i < operator_count; ++i) {
5681 if (operators[i].id == opid1('=')) {
5682 parser->assign_op = operators+i;
5686 if (!parser->assign_op) {
5687 printf("internal error: initializing parser: failed to find assign operator\n");
5692 vec_push(parser->variables, parser->htfields = util_htnew(PARSER_HT_SIZE));
5693 vec_push(parser->variables, parser->htglobals = util_htnew(PARSER_HT_SIZE));
5694 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
5695 vec_push(parser->_blocktypedefs, 0);
5698 vec_push(parser->correct_variables, correct_trie_new());
5699 vec_push(parser->correct_variables_score, NULL);
5701 empty_ctx.file = "<internal>";
5703 parser->nil = ast_value_new(empty_ctx, "nil", TYPE_NIL);
5704 parser->nil->cvq = CV_CONST;
5705 if (OPTS_FLAG(UNTYPED_NIL))
5706 util_htset(parser->htglobals, "nil", (void*)parser->nil);
5708 parser->max_param_count = 1;
5710 parser->const_vec[0] = ast_value_new(empty_ctx, "<vector.x>", TYPE_NOEXPR);
5711 parser->const_vec[1] = ast_value_new(empty_ctx, "<vector.y>", TYPE_NOEXPR);
5712 parser->const_vec[2] = ast_value_new(empty_ctx, "<vector.z>", TYPE_NOEXPR);
5714 if (opts.add_info) {
5715 parser->reserved_version = ast_value_new(empty_ctx, "reserved:version", TYPE_STRING);
5716 parser->reserved_version->cvq = CV_CONST;
5717 parser->reserved_version->hasvalue = true;
5718 parser->reserved_version->expression.flags |= AST_FLAG_INCLUDE_DEF;
5719 parser->reserved_version->constval.vstring = util_strdup(GMQCC_FULL_VERSION_STRING);
5721 parser->reserved_version = NULL;
5726 bool parser_compile()
5728 /* initial lexer/parser state */
5729 parser->lex->flags.noops = true;
5731 if (parser_next(parser))
5733 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
5735 if (!parser_global_statement(parser)) {
5736 if (parser->tok == TOKEN_EOF)
5737 parseerror(parser, "unexpected eof");
5738 else if (compile_errors)
5739 parseerror(parser, "there have been errors, bailing out");
5740 lex_close(parser->lex);
5746 parseerror(parser, "parse error");
5747 lex_close(parser->lex);
5752 lex_close(parser->lex);
5755 return !compile_errors;
5758 bool parser_compile_file(const char *filename)
5760 parser->lex = lex_open(filename);
5762 con_err("failed to open file \"%s\"\n", filename);
5765 return parser_compile();
5768 bool parser_compile_string(const char *name, const char *str, size_t len)
5770 parser->lex = lex_open_string(str, len, name);
5772 con_err("failed to create lexer for string \"%s\"\n", name);
5775 return parser_compile();
5778 void parser_cleanup()
5781 for (i = 0; i < vec_size(parser->accessors); ++i) {
5782 ast_delete(parser->accessors[i]->constval.vfunc);
5783 parser->accessors[i]->constval.vfunc = NULL;
5784 ast_delete(parser->accessors[i]);
5786 for (i = 0; i < vec_size(parser->functions); ++i) {
5787 ast_delete(parser->functions[i]);
5789 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
5790 ast_delete(parser->imm_vector[i]);
5792 for (i = 0; i < vec_size(parser->imm_string); ++i) {
5793 ast_delete(parser->imm_string[i]);
5795 for (i = 0; i < vec_size(parser->imm_float); ++i) {
5796 ast_delete(parser->imm_float[i]);
5798 for (i = 0; i < vec_size(parser->fields); ++i) {
5799 ast_delete(parser->fields[i]);
5801 for (i = 0; i < vec_size(parser->globals); ++i) {
5802 ast_delete(parser->globals[i]);
5804 vec_free(parser->accessors);
5805 vec_free(parser->functions);
5806 vec_free(parser->imm_vector);
5807 vec_free(parser->imm_string);
5808 vec_free(parser->imm_float);
5809 vec_free(parser->globals);
5810 vec_free(parser->fields);
5812 for (i = 0; i < vec_size(parser->variables); ++i)
5813 util_htdel(parser->variables[i]);
5814 vec_free(parser->variables);
5815 vec_free(parser->_blocklocals);
5816 vec_free(parser->_locals);
5819 for (i = 0; i < vec_size(parser->correct_variables); ++i) {
5820 correct_del(parser->correct_variables[i], parser->correct_variables_score[i]);
5822 vec_free(parser->correct_variables);
5823 vec_free(parser->correct_variables_score);
5826 for (i = 0; i < vec_size(parser->_typedefs); ++i)
5827 ast_delete(parser->_typedefs[i]);
5828 vec_free(parser->_typedefs);
5829 for (i = 0; i < vec_size(parser->typedefs); ++i)
5830 util_htdel(parser->typedefs[i]);
5831 vec_free(parser->typedefs);
5832 vec_free(parser->_blocktypedefs);
5834 vec_free(parser->_block_ctx);
5836 vec_free(parser->labels);
5837 vec_free(parser->gotos);
5838 vec_free(parser->breaks);
5839 vec_free(parser->continues);
5841 ast_value_delete(parser->nil);
5843 ast_value_delete(parser->const_vec[0]);
5844 ast_value_delete(parser->const_vec[1]);
5845 ast_value_delete(parser->const_vec[2]);
5850 bool parser_finish(const char *output)
5856 if (compile_errors) {
5857 con_out("*** there were compile errors\n");
5861 ir = ir_builder_new("gmqcc_out");
5863 con_out("failed to allocate builder\n");
5867 for (i = 0; i < vec_size(parser->fields); ++i) {
5870 if (!ast_istype(parser->fields[i], ast_value))
5872 field = (ast_value*)parser->fields[i];
5873 hasvalue = field->hasvalue;
5874 field->hasvalue = false;
5875 if (!ast_global_codegen((ast_value*)field, ir, true)) {
5876 con_out("failed to generate field %s\n", field->name);
5877 ir_builder_delete(ir);
5882 ast_expression *subtype;
5883 field->hasvalue = true;
5884 subtype = field->expression.next;
5885 ifld = ir_builder_create_field(ir, field->name, subtype->expression.vtype);
5886 if (subtype->expression.vtype == TYPE_FIELD)
5887 ifld->fieldtype = subtype->expression.next->expression.vtype;
5888 else if (subtype->expression.vtype == TYPE_FUNCTION)
5889 ifld->outtype = subtype->expression.next->expression.vtype;
5890 (void)!ir_value_set_field(field->ir_v, ifld);
5893 for (i = 0; i < vec_size(parser->globals); ++i) {
5895 if (!ast_istype(parser->globals[i], ast_value))
5897 asvalue = (ast_value*)(parser->globals[i]);
5898 if (!asvalue->uses && !asvalue->hasvalue && asvalue->expression.vtype != TYPE_FUNCTION) {
5899 retval = retval && !genwarning(ast_ctx(asvalue), WARN_UNUSED_VARIABLE,
5900 "unused global: `%s`", asvalue->name);
5902 if (!ast_global_codegen(asvalue, ir, false)) {
5903 con_out("failed to generate global %s\n", asvalue->name);
5904 ir_builder_delete(ir);
5908 /* Build function vararg accessor ast tree now before generating
5909 * immediates, because the accessors may add new immediates
5911 for (i = 0; i < vec_size(parser->functions); ++i) {
5912 ast_function *f = parser->functions[i];
5914 if (parser->max_param_count > vec_size(f->vtype->expression.params)) {
5915 f->varargs->expression.count = parser->max_param_count - vec_size(f->vtype->expression.params);
5916 if (!parser_create_array_setter_impl(parser, f->varargs)) {
5917 con_out("failed to generate vararg setter for %s\n", f->name);
5918 ir_builder_delete(ir);
5921 if (!parser_create_array_getter_impl(parser, f->varargs)) {
5922 con_out("failed to generate vararg getter for %s\n", f->name);
5923 ir_builder_delete(ir);
5927 ast_delete(f->varargs);
5932 /* Now we can generate immediates */
5933 for (i = 0; i < vec_size(parser->imm_float); ++i) {
5934 if (!ast_global_codegen(parser->imm_float[i], ir, false)) {
5935 con_out("failed to generate global %s\n", parser->imm_float[i]->name);
5936 ir_builder_delete(ir);
5940 for (i = 0; i < vec_size(parser->imm_string); ++i) {
5941 if (!ast_global_codegen(parser->imm_string[i], ir, false)) {
5942 con_out("failed to generate global %s\n", parser->imm_string[i]->name);
5943 ir_builder_delete(ir);
5947 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
5948 if (!ast_global_codegen(parser->imm_vector[i], ir, false)) {
5949 con_out("failed to generate global %s\n", parser->imm_vector[i]->name);
5950 ir_builder_delete(ir);
5954 for (i = 0; i < vec_size(parser->globals); ++i) {
5956 if (!ast_istype(parser->globals[i], ast_value))
5958 asvalue = (ast_value*)(parser->globals[i]);
5959 if (!(asvalue->expression.flags & AST_FLAG_INITIALIZED))
5961 if (asvalue->cvq == CV_CONST && !asvalue->hasvalue)
5962 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_CONSTANT,
5963 "uninitialized constant: `%s`",
5965 else if ((asvalue->cvq == CV_NONE || asvalue->cvq == CV_CONST) && !asvalue->hasvalue)
5966 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_GLOBAL,
5967 "uninitialized global: `%s`",
5970 if (!ast_generate_accessors(asvalue, ir)) {
5971 ir_builder_delete(ir);
5975 for (i = 0; i < vec_size(parser->fields); ++i) {
5977 asvalue = (ast_value*)(parser->fields[i]->expression.next);
5979 if (!ast_istype((ast_expression*)asvalue, ast_value))
5981 if (asvalue->expression.vtype != TYPE_ARRAY)
5983 if (!ast_generate_accessors(asvalue, ir)) {
5984 ir_builder_delete(ir);
5988 if (parser->reserved_version &&
5989 !ast_global_codegen(parser->reserved_version, ir, false))
5991 con_out("failed to generate reserved::version");
5992 ir_builder_delete(ir);
5995 for (i = 0; i < vec_size(parser->functions); ++i) {
5996 ast_function *f = parser->functions[i];
5997 if (!ast_function_codegen(f, ir)) {
5998 con_out("failed to generate function %s\n", f->name);
5999 ir_builder_delete(ir);
6004 ir_builder_dump(ir, con_out);
6005 for (i = 0; i < vec_size(parser->functions); ++i) {
6006 if (!ir_function_finalize(parser->functions[i]->ir_func)) {
6007 con_out("failed to finalize function %s\n", parser->functions[i]->name);
6008 ir_builder_delete(ir);
6013 if (compile_Werrors) {
6014 con_out("*** there were warnings treated as errors\n");
6015 compile_show_werrors();
6021 ir_builder_dump(ir, con_out);
6023 generate_checksum(parser);
6025 if (!ir_builder_generate(ir, output)) {
6026 con_out("*** failed to generate output file\n");
6027 ir_builder_delete(ir);
6032 ir_builder_delete(ir);