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 1024
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);
1421 parseerror(parser, "internal error: failed to create ast_call node");
1425 if (fid+1 == vec_size(sy->out)) {
1428 } else if (fid+2 == vec_size(sy->out)) {
1430 vec_shrinkby(sy->out, 1);
1431 params = sy->out[vec_size(sy->out)].block;
1435 vec_push(call->params, sy->out[vec_size(sy->out)].out);
1437 paramcount = vec_size(params->exprs);
1438 call->params = params->exprs;
1439 params->exprs = NULL;
1442 if (parser->max_param_count < paramcount)
1443 parser->max_param_count = paramcount;
1444 (void)!ast_call_check_types(call);
1446 parseerror(parser, "invalid function call");
1450 if (ast_istype(fun, ast_value)) {
1451 funval = (ast_value*)fun;
1452 if ((fun->expression.flags & AST_FLAG_VARIADIC) &&
1453 !(/*funval->cvq == CV_CONST && */ funval->hasvalue && funval->constval.vfunc->builtin))
1456 if (paramcount < vec_size(fun->expression.params))
1459 va_count = paramcount - vec_size(fun->expression.params);
1460 call->va_count = (ast_expression*)parser_const_float(parser, (double)va_count);
1464 /* overwrite fid, the function, with a call */
1465 sy->out[fid] = syexp(call->expression.node.context, (ast_expression*)call);
1467 if (fun->expression.vtype != TYPE_FUNCTION) {
1468 parseerror(parser, "not a function (%s)", type_name[fun->expression.vtype]);
1472 if (!fun->expression.next) {
1473 parseerror(parser, "could not determine function return type");
1476 ast_value *fval = (ast_istype(fun, ast_value) ? ((ast_value*)fun) : NULL);
1478 if (fun->expression.flags & AST_FLAG_DEPRECATED) {
1480 return !parsewarning(parser, WARN_DEPRECATED,
1481 "call to function (which is marked deprecated)\n",
1482 "-> it has been declared here: %s:%i",
1483 ast_ctx(fun).file, ast_ctx(fun).line);
1486 return !parsewarning(parser, WARN_DEPRECATED,
1487 "call to `%s` (which is marked deprecated)\n"
1488 "-> `%s` declared here: %s:%i",
1489 fval->name, fval->name, ast_ctx(fun).file, ast_ctx(fun).line);
1491 return !parsewarning(parser, WARN_DEPRECATED,
1492 "call to `%s` (deprecated: %s)\n"
1493 "-> `%s` declared here: %s:%i",
1494 fval->name, fval->desc, fval->name, ast_ctx(fun).file,
1498 if (vec_size(fun->expression.params) != paramcount &&
1499 !((fun->expression.flags & AST_FLAG_VARIADIC) &&
1500 vec_size(fun->expression.params) < paramcount))
1502 const char *fewmany = (vec_size(fun->expression.params) > paramcount) ? "few" : "many";
1504 return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT,
1505 "too %s parameters for call to %s: expected %i, got %i\n"
1506 " -> `%s` has been declared here: %s:%i",
1507 fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount,
1508 fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
1510 return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT,
1511 "too %s parameters for function call: expected %i, got %i\n"
1512 " -> it has been declared here: %s:%i",
1513 fewmany, (int)vec_size(fun->expression.params), (int)paramcount,
1514 ast_ctx(fun).file, (int)ast_ctx(fun).line);
1521 static bool parser_close_paren(parser_t *parser, shunt *sy, bool functions_only)
1523 if (!vec_size(sy->ops)) {
1524 parseerror(parser, "unmatched closing paren");
1527 /* this would for bit a + (x) because there are no operators inside (x)
1528 if (sy->ops[vec_size(sy->ops)-1].paren == 1) {
1529 parseerror(parser, "empty parenthesis expression");
1533 while (vec_size(sy->ops)) {
1534 if (vec_last(sy->ops).paren == SY_PAREN_FUNC) {
1535 if (!parser_close_call(parser, sy))
1539 if (vec_last(sy->ops).paren == SY_PAREN_EXPR) {
1540 if (!vec_size(sy->out)) {
1541 compile_error(vec_last(sy->ops).ctx, "empty paren expression");
1542 vec_shrinkby(sy->ops, 1);
1545 vec_shrinkby(sy->ops, 1);
1546 return !functions_only;
1548 if (vec_last(sy->ops).paren == SY_PAREN_INDEX) {
1551 /* pop off the parenthesis */
1552 vec_shrinkby(sy->ops, 1);
1553 /* then apply the index operator */
1554 if (!parser_sy_apply_operator(parser, sy))
1558 if (vec_last(sy->ops).paren == SY_PAREN_TERNARY) {
1561 if (vec_last(parser->pot) != POT_TERNARY1) {
1562 parseerror(parser, "mismatched colon in ternary expression (missing closing paren?)");
1565 vec_last(parser->pot) = POT_TERNARY2;
1566 /* pop off the parenthesis */
1567 vec_shrinkby(sy->ops, 1);
1570 if (!parser_sy_apply_operator(parser, sy))
1576 static void parser_reclassify_token(parser_t *parser)
1579 for (i = 0; i < operator_count; ++i) {
1580 if (!strcmp(parser_tokval(parser), operators[i].op)) {
1581 parser->tok = TOKEN_OPERATOR;
1587 static ast_expression* parse_vararg_do(parser_t *parser)
1589 ast_expression *idx, *out;
1591 ast_value *funtype = parser->function->vtype;
1593 lex_ctx ctx = parser_ctx(parser);
1595 if (!parser_next(parser) || parser->tok != '(') {
1596 parseerror(parser, "expected parameter index and type in parenthesis");
1599 if (!parser_next(parser)) {
1600 parseerror(parser, "error parsing parameter index");
1604 idx = parse_expression_leave(parser, true, false, false);
1608 if (parser->tok != ',') {
1610 parseerror(parser, "expected comma after parameter index");
1614 if (!parser_next(parser) || (parser->tok != TOKEN_IDENT && parser->tok != TOKEN_TYPENAME)) {
1616 parseerror(parser, "expected typename for vararg");
1620 typevar = parse_typename(parser, NULL, NULL);
1626 if (parser->tok != ')') {
1628 ast_delete(typevar);
1629 parseerror(parser, "expected closing paren");
1634 if (!parser_next(parser)) {
1636 ast_delete(typevar);
1637 parseerror(parser, "parse error after vararg");
1642 if (!parser->function->varargs) {
1644 ast_delete(typevar);
1645 parseerror(parser, "function has no variable argument list");
1649 if (funtype->expression.varparam &&
1650 !ast_compare_type((ast_expression*)typevar, (ast_expression*)funtype->expression.varparam))
1654 ast_type_to_string((ast_expression*)typevar, ty1, sizeof(ty1));
1655 ast_type_to_string((ast_expression*)funtype->expression.varparam, ty2, sizeof(ty2));
1656 compile_error(ast_ctx(typevar),
1657 "function was declared to take varargs of type `%s`, requested type is: %s",
1661 out = (ast_expression*)ast_array_index_new(ctx, (ast_expression*)(parser->function->varargs), idx);
1662 ast_type_adopt(out, typevar);
1663 ast_delete(typevar);
1667 static ast_expression* parse_vararg(parser_t *parser)
1669 bool old_noops = parser->lex->flags.noops;
1670 enum parser_pot *old_pot = parser->pot;
1672 ast_expression *out;
1675 parser->lex->flags.noops = true;
1676 out = parse_vararg_do(parser);
1678 parser->pot = old_pot;
1679 parser->lex->flags.noops = old_noops;
1683 static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels)
1685 ast_expression *expr = NULL;
1687 bool wantop = false;
1688 /* only warn once about an assignment in a truth value because the current code
1689 * would trigger twice on: if(a = b && ...), once for the if-truth-value, once for the && part
1691 bool warn_truthvalue = true;
1693 /* count the parens because an if starts with one, so the
1694 * end of a condition is an unmatched closing paren
1702 parser->lex->flags.noops = false;
1704 parser_reclassify_token(parser);
1708 if (OPTS_FLAG(TRANSLATABLE_STRINGS) &&
1709 parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "_"))
1711 /* a translatable string */
1715 parseerror(parser, "expected operator or end of statement, got constant");
1719 parser->lex->flags.noops = true;
1720 if (!parser_next(parser) || parser->tok != '(') {
1721 parseerror(parser, "use _(\"string\") to create a translatable string constant");
1724 parser->lex->flags.noops = false;
1725 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
1726 parseerror(parser, "expected a constant string in translatable-string extension");
1729 val = parser_const_string(parser, parser_tokval(parser), true);
1733 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1734 DEBUGSHUNTDO(con_out("push string\n"));
1736 if (!parser_next(parser) || parser->tok != ')') {
1737 parseerror(parser, "expected closing paren after translatable string");
1741 else if (parser->tok == TOKEN_DOTS)
1744 if (!OPTS_FLAG(VARIADIC_ARGS)) {
1745 parseerror(parser, "cannot access varargs (try -fvariadic-args)");
1749 parseerror(parser, "expected operator or end of statement");
1753 va = parse_vararg(parser);
1756 vec_push(sy.out, syexp(parser_ctx(parser), va));
1757 DEBUGSHUNTDO(con_out("push `...`\n"));
1759 else if (parser->tok == TOKEN_IDENT)
1761 const char *ctoken = parser_tokval(parser);
1762 ast_expression *prev = vec_size(sy.out) ? vec_last(sy.out).out : NULL;
1763 ast_expression *var;
1765 parseerror(parser, "expected operator or end of statement");
1769 /* a_vector.{x,y,z} */
1770 if (!vec_size(sy.ops) ||
1771 !vec_last(sy.ops).etype ||
1772 operators[vec_last(sy.ops).etype-1].id != opid1('.') ||
1773 (prev >= intrinsic_debug_typestring &&
1774 prev <= intrinsic_debug_typestring))
1776 /* When adding more intrinsics, fix the above condition */
1779 if (prev && prev->expression.vtype == TYPE_VECTOR && ctoken[0] >= 'x' && ctoken[0] <= 'z' && !ctoken[1])
1781 var = (ast_expression*)parser->const_vec[ctoken[0]-'x'];
1783 var = parser_find_var(parser, parser_tokval(parser));
1785 var = parser_find_field(parser, parser_tokval(parser));
1787 if (!var && with_labels) {
1788 var = (ast_expression*)parser_find_label(parser, parser_tokval(parser));
1790 ast_label *lbl = ast_label_new(parser_ctx(parser), parser_tokval(parser), true);
1791 var = (ast_expression*)lbl;
1792 vec_push(parser->labels, lbl);
1797 if (!strcmp(parser_tokval(parser), "__builtin_debug_typestring")) {
1798 var = (ast_expression*)intrinsic_debug_typestring;
1803 char *correct = NULL;
1806 * sometimes people use preprocessing predefs without enabling them
1807 * i've done this thousands of times already myself. Lets check for
1808 * it in the predef table. And diagnose it better :)
1810 if (!OPTS_FLAG(FTEPP_PREDEFS)) {
1811 for (i = 0; i < sizeof(ftepp_predefs)/sizeof(*ftepp_predefs); i++) {
1812 if (!strcmp(ftepp_predefs[i].name, parser_tokval(parser))) {
1813 parseerror(parser, "unexpected ident: %s (use -fftepp-predef to enable pre-defined macros)", parser_tokval(parser));
1820 * TODO: determine the best score for the identifier: be it
1821 * a variable, a field.
1823 * We should also consider adding correction tables for
1824 * other things as well.
1826 if (opts.correction) {
1828 correct_init(&corr);
1830 for (i = 0; i < vec_size(parser->correct_variables); i++) {
1831 correct = correct_str(&corr, parser->correct_variables[i], parser_tokval(parser));
1832 if (strcmp(correct, parser_tokval(parser))) {
1834 } else if (correct) {
1839 correct_free(&corr);
1842 parseerror(parser, "unexpected ident: %s (did you mean %s?)", parser_tokval(parser), correct);
1847 parseerror(parser, "unexpected ident: %s", parser_tokval(parser));
1853 if (ast_istype(var, ast_value)) {
1854 ((ast_value*)var)->uses++;
1856 else if (ast_istype(var, ast_member)) {
1857 ast_member *mem = (ast_member*)var;
1858 if (ast_istype(mem->owner, ast_value))
1859 ((ast_value*)(mem->owner))->uses++;
1862 vec_push(sy.out, syexp(parser_ctx(parser), var));
1863 DEBUGSHUNTDO(con_out("push %s\n", parser_tokval(parser)));
1865 else if (parser->tok == TOKEN_FLOATCONST) {
1868 parseerror(parser, "expected operator or end of statement, got constant");
1872 val = parser_const_float(parser, (parser_token(parser)->constval.f));
1875 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1876 DEBUGSHUNTDO(con_out("push %g\n", parser_token(parser)->constval.f));
1878 else if (parser->tok == TOKEN_INTCONST || parser->tok == TOKEN_CHARCONST) {
1881 parseerror(parser, "expected operator or end of statement, got constant");
1885 val = parser_const_float(parser, (double)(parser_token(parser)->constval.i));
1888 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1889 DEBUGSHUNTDO(con_out("push %i\n", parser_token(parser)->constval.i));
1891 else if (parser->tok == TOKEN_STRINGCONST) {
1894 parseerror(parser, "expected operator or end of statement, got constant");
1898 val = parser_const_string(parser, parser_tokval(parser), false);
1901 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1902 DEBUGSHUNTDO(con_out("push string\n"));
1904 else if (parser->tok == TOKEN_VECTORCONST) {
1907 parseerror(parser, "expected operator or end of statement, got constant");
1911 val = parser_const_vector(parser, parser_token(parser)->constval.v);
1914 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1915 DEBUGSHUNTDO(con_out("push '%g %g %g'\n",
1916 parser_token(parser)->constval.v.x,
1917 parser_token(parser)->constval.v.y,
1918 parser_token(parser)->constval.v.z));
1920 else if (parser->tok == '(') {
1921 parseerror(parser, "internal error: '(' should be classified as operator");
1924 else if (parser->tok == '[') {
1925 parseerror(parser, "internal error: '[' should be classified as operator");
1928 else if (parser->tok == ')') {
1930 DEBUGSHUNTDO(con_out("do[op] )\n"));
1934 /* we do expect an operator next */
1935 /* closing an opening paren */
1936 if (!parser_close_paren(parser, &sy, false))
1938 if (vec_last(parser->pot) != POT_PAREN) {
1939 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1942 vec_pop(parser->pot);
1944 DEBUGSHUNTDO(con_out("do[nop] )\n"));
1948 /* allowed for function calls */
1949 if (!parser_close_paren(parser, &sy, true))
1951 if (vec_last(parser->pot) != POT_PAREN) {
1952 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1955 vec_pop(parser->pot);
1959 else if (parser->tok == ']') {
1961 parseerror(parser, "operand expected");
1965 if (!parser_close_paren(parser, &sy, false))
1967 if (vec_last(parser->pot) != POT_PAREN) {
1968 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1971 vec_pop(parser->pot);
1974 else if (parser->tok == TOKEN_TYPENAME) {
1975 parseerror(parser, "unexpected typename");
1978 else if (parser->tok != TOKEN_OPERATOR) {
1980 parseerror(parser, "expected operator or end of statement");
1987 /* classify the operator */
1988 const oper_info *op;
1989 const oper_info *olast = NULL;
1991 for (o = 0; o < operator_count; ++o) {
1992 if (((!(operators[o].flags & OP_PREFIX) == !!wantop)) &&
1993 /* !(operators[o].flags & OP_SUFFIX) && / * remove this */
1994 !strcmp(parser_tokval(parser), operators[o].op))
1999 if (o == operator_count) {
2000 /* no operator found... must be the end of the statement */
2003 /* found an operator */
2006 /* when declaring variables, a comma starts a new variable */
2007 if (op->id == opid1(',') && !parens && stopatcomma) {
2008 /* fixup the token */
2013 /* a colon without a pervious question mark cannot be a ternary */
2014 if (!ternaries && op->id == opid2(':','?')) {
2019 if (op->id == opid1(',')) {
2020 if (vec_size(parser->pot) && vec_last(parser->pot) == POT_TERNARY2) {
2021 (void)!parsewarning(parser, WARN_TERNARY_PRECEDENCE, "suggesting parenthesis around ternary expression");
2025 if (vec_size(sy.ops) && !vec_last(sy.ops).paren)
2026 olast = &operators[vec_last(sy.ops).etype-1];
2028 #define IsAssignOp(x) (\
2029 (x) == opid1('=') || \
2030 (x) == opid2('+','=') || \
2031 (x) == opid2('-','=') || \
2032 (x) == opid2('*','=') || \
2033 (x) == opid2('/','=') || \
2034 (x) == opid2('%','=') || \
2035 (x) == opid2('&','=') || \
2036 (x) == opid2('|','=') || \
2037 (x) == opid3('&','~','=') \
2039 if (warn_truthvalue) {
2040 if ( (olast && IsAssignOp(olast->id) && (op->id == opid2('&','&') || op->id == opid2('|','|'))) ||
2041 (olast && IsAssignOp(op->id) && (olast->id == opid2('&','&') || olast->id == opid2('|','|'))) ||
2042 (truthvalue && !vec_size(parser->pot) && IsAssignOp(op->id))
2045 (void)!parsewarning(parser, WARN_PARENTHESIS, "suggesting parenthesis around assignment used as truth value");
2046 warn_truthvalue = false;
2051 (op->prec < olast->prec) ||
2052 (op->assoc == ASSOC_LEFT && op->prec <= olast->prec) ) )
2054 if (!parser_sy_apply_operator(parser, &sy))
2056 if (vec_size(sy.ops) && !vec_last(sy.ops).paren)
2057 olast = &operators[vec_last(sy.ops).etype-1];
2062 if (op->id == opid1('(')) {
2064 size_t sycount = vec_size(sy.out);
2065 DEBUGSHUNTDO(con_out("push [op] (\n"));
2066 ++parens; vec_push(parser->pot, POT_PAREN);
2067 /* we expected an operator, this is the function-call operator */
2068 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_FUNC, sycount-1));
2070 ++parens; vec_push(parser->pot, POT_PAREN);
2071 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_EXPR, 0));
2072 DEBUGSHUNTDO(con_out("push [nop] (\n"));
2075 } else if (op->id == opid1('[')) {
2077 parseerror(parser, "unexpected array subscript");
2080 ++parens; vec_push(parser->pot, POT_PAREN);
2081 /* push both the operator and the paren, this makes life easier */
2082 vec_push(sy.ops, syop(parser_ctx(parser), op));
2083 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_INDEX, 0));
2085 } else if (op->id == opid2('?',':')) {
2086 vec_push(sy.ops, syop(parser_ctx(parser), op));
2087 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_TERNARY, 0));
2090 vec_push(parser->pot, POT_TERNARY1);
2091 } else if (op->id == opid2(':','?')) {
2092 if (!vec_size(parser->pot)) {
2093 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
2096 if (vec_last(parser->pot) != POT_TERNARY1) {
2097 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
2100 if (!parser_close_paren(parser, &sy, false))
2102 vec_push(sy.ops, syop(parser_ctx(parser), op));
2106 DEBUGSHUNTDO(con_out("push operator %s\n", op->op));
2107 vec_push(sy.ops, syop(parser_ctx(parser), op));
2108 wantop = !!(op->flags & OP_SUFFIX);
2111 if (!parser_next(parser)) {
2114 if (parser->tok == ';' ||
2115 (!parens && (parser->tok == ']' || parser->tok == ')' || parser->tok == '}')))
2121 while (vec_size(sy.ops)) {
2122 if (!parser_sy_apply_operator(parser, &sy))
2126 parser->lex->flags.noops = true;
2127 if (!vec_size(sy.out)) {
2128 parseerror(parser, "empty expression");
2131 expr = sy.out[0].out;
2134 DEBUGSHUNTDO(con_out("shunt done\n"));
2135 if (vec_size(parser->pot)) {
2136 parseerror(parser, "internal error: vec_size(parser->pot) = %lu", (unsigned long)vec_size(parser->pot));
2139 vec_free(parser->pot);
2143 parser->lex->flags.noops = true;
2149 static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels)
2151 ast_expression *e = parse_expression_leave(parser, stopatcomma, false, with_labels);
2154 if (parser->tok != ';') {
2155 parseerror(parser, "semicolon expected after expression");
2159 if (!parser_next(parser)) {
2166 static void parser_enterblock(parser_t *parser)
2168 vec_push(parser->variables, util_htnew(PARSER_HT_SIZE));
2169 vec_push(parser->_blocklocals, vec_size(parser->_locals));
2170 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
2171 vec_push(parser->_blocktypedefs, vec_size(parser->_typedefs));
2172 vec_push(parser->_block_ctx, parser_ctx(parser));
2175 vec_push(parser->correct_variables, correct_trie_new());
2176 vec_push(parser->correct_variables_score, NULL);
2179 static bool parser_leaveblock(parser_t *parser)
2182 size_t locals, typedefs;
2184 if (vec_size(parser->variables) <= PARSER_HT_LOCALS) {
2185 parseerror(parser, "internal error: parser_leaveblock with no block");
2189 util_htdel(vec_last(parser->variables));
2190 correct_del(vec_last(parser->correct_variables), vec_last(parser->correct_variables_score));
2192 vec_pop(parser->variables);
2193 vec_pop(parser->correct_variables);
2194 vec_pop(parser->correct_variables_score);
2195 if (!vec_size(parser->_blocklocals)) {
2196 parseerror(parser, "internal error: parser_leaveblock with no block (2)");
2200 locals = vec_last(parser->_blocklocals);
2201 vec_pop(parser->_blocklocals);
2202 while (vec_size(parser->_locals) != locals) {
2203 ast_expression *e = vec_last(parser->_locals);
2204 ast_value *v = (ast_value*)e;
2205 vec_pop(parser->_locals);
2206 if (ast_istype(e, ast_value) && !v->uses) {
2207 if (compile_warning(ast_ctx(v), WARN_UNUSED_VARIABLE, "unused variable: `%s`", v->name))
2212 typedefs = vec_last(parser->_blocktypedefs);
2213 while (vec_size(parser->_typedefs) != typedefs) {
2214 ast_delete(vec_last(parser->_typedefs));
2215 vec_pop(parser->_typedefs);
2217 util_htdel(vec_last(parser->typedefs));
2218 vec_pop(parser->typedefs);
2220 vec_pop(parser->_block_ctx);
2225 static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e)
2227 vec_push(parser->_locals, e);
2228 util_htset(vec_last(parser->variables), name, (void*)e);
2232 vec_last(parser->correct_variables),
2233 &vec_last(parser->correct_variables_score),
2238 static void parser_addglobal(parser_t *parser, const char *name, ast_expression *e)
2240 vec_push(parser->globals, e);
2241 util_htset(parser->htglobals, name, e);
2245 parser->correct_variables[0],
2246 &parser->correct_variables_score[0],
2251 static ast_expression* process_condition(parser_t *parser, ast_expression *cond, bool *_ifnot)
2255 ast_expression *prev;
2257 if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && cond->expression.vtype == TYPE_STRING)
2260 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_S, cond);
2263 parseerror(parser, "internal error: failed to process condition");
2268 else if (OPTS_FLAG(CORRECT_LOGIC) && cond->expression.vtype == TYPE_VECTOR)
2270 /* vector types need to be cast to true booleans */
2271 ast_binary *bin = (ast_binary*)cond;
2272 if (!OPTS_FLAG(PERL_LOGIC) || !ast_istype(cond, ast_binary) || !(bin->op == INSTR_AND || bin->op == INSTR_OR))
2274 /* in perl-logic, AND and OR take care of the -fcorrect-logic */
2276 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_V, cond);
2279 parseerror(parser, "internal error: failed to process condition");
2286 unary = (ast_unary*)cond;
2287 while (ast_istype(cond, ast_unary) && unary->op == INSTR_NOT_F)
2289 cond = unary->operand;
2290 unary->operand = NULL;
2293 unary = (ast_unary*)cond;
2297 parseerror(parser, "internal error: failed to process condition");
2299 if (ifnot) *_ifnot = !*_ifnot;
2303 static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out)
2306 ast_expression *cond, *ontrue = NULL, *onfalse = NULL;
2309 lex_ctx ctx = parser_ctx(parser);
2311 (void)block; /* not touching */
2313 /* skip the 'if', parse an optional 'not' and check for an opening paren */
2314 if (!parser_next(parser)) {
2315 parseerror(parser, "expected condition or 'not'");
2318 if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "not")) {
2320 if (!parser_next(parser)) {
2321 parseerror(parser, "expected condition in parenthesis");
2325 if (parser->tok != '(') {
2326 parseerror(parser, "expected 'if' condition in parenthesis");
2329 /* parse into the expression */
2330 if (!parser_next(parser)) {
2331 parseerror(parser, "expected 'if' condition after opening paren");
2334 /* parse the condition */
2335 cond = parse_expression_leave(parser, false, true, false);
2339 if (parser->tok != ')') {
2340 parseerror(parser, "expected closing paren after 'if' condition");
2344 /* parse into the 'then' branch */
2345 if (!parser_next(parser)) {
2346 parseerror(parser, "expected statement for on-true branch of 'if'");
2350 if (!parse_statement_or_block(parser, &ontrue)) {
2355 ontrue = (ast_expression*)ast_block_new(parser_ctx(parser));
2356 /* check for an else */
2357 if (!strcmp(parser_tokval(parser), "else")) {
2358 /* parse into the 'else' branch */
2359 if (!parser_next(parser)) {
2360 parseerror(parser, "expected on-false branch after 'else'");
2365 if (!parse_statement_or_block(parser, &onfalse)) {
2372 cond = process_condition(parser, cond, &ifnot);
2374 if (ontrue) ast_delete(ontrue);
2375 if (onfalse) ast_delete(onfalse);
2380 ifthen = ast_ifthen_new(ctx, cond, onfalse, ontrue);
2382 ifthen = ast_ifthen_new(ctx, cond, ontrue, onfalse);
2383 *out = (ast_expression*)ifthen;
2387 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out);
2388 static bool parse_while(parser_t *parser, ast_block *block, ast_expression **out)
2393 /* skip the 'while' and get the body */
2394 if (!parser_next(parser)) {
2395 if (OPTS_FLAG(LOOP_LABELS))
2396 parseerror(parser, "expected loop label or 'while' condition in parenthesis");
2398 parseerror(parser, "expected 'while' condition in parenthesis");
2402 if (parser->tok == ':') {
2403 if (!OPTS_FLAG(LOOP_LABELS))
2404 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2405 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2406 parseerror(parser, "expected loop label");
2409 label = util_strdup(parser_tokval(parser));
2410 if (!parser_next(parser)) {
2412 parseerror(parser, "expected 'while' condition in parenthesis");
2417 if (parser->tok != '(') {
2418 parseerror(parser, "expected 'while' condition in parenthesis");
2422 vec_push(parser->breaks, label);
2423 vec_push(parser->continues, label);
2425 rv = parse_while_go(parser, block, out);
2428 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2429 parseerror(parser, "internal error: label stack corrupted");
2435 vec_pop(parser->breaks);
2436 vec_pop(parser->continues);
2441 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out)
2444 ast_expression *cond, *ontrue;
2448 lex_ctx ctx = parser_ctx(parser);
2450 (void)block; /* not touching */
2452 /* parse into the expression */
2453 if (!parser_next(parser)) {
2454 parseerror(parser, "expected 'while' condition after opening paren");
2457 /* parse the condition */
2458 cond = parse_expression_leave(parser, false, true, false);
2462 if (parser->tok != ')') {
2463 parseerror(parser, "expected closing paren after 'while' condition");
2467 /* parse into the 'then' branch */
2468 if (!parser_next(parser)) {
2469 parseerror(parser, "expected while-loop body");
2473 if (!parse_statement_or_block(parser, &ontrue)) {
2478 cond = process_condition(parser, cond, &ifnot);
2483 aloop = ast_loop_new(ctx, NULL, cond, ifnot, NULL, false, NULL, ontrue);
2484 *out = (ast_expression*)aloop;
2488 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out);
2489 static bool parse_dowhile(parser_t *parser, ast_block *block, ast_expression **out)
2494 /* skip the 'do' and get the body */
2495 if (!parser_next(parser)) {
2496 if (OPTS_FLAG(LOOP_LABELS))
2497 parseerror(parser, "expected loop label or body");
2499 parseerror(parser, "expected loop body");
2503 if (parser->tok == ':') {
2504 if (!OPTS_FLAG(LOOP_LABELS))
2505 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2506 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2507 parseerror(parser, "expected loop label");
2510 label = util_strdup(parser_tokval(parser));
2511 if (!parser_next(parser)) {
2513 parseerror(parser, "expected loop body");
2518 vec_push(parser->breaks, label);
2519 vec_push(parser->continues, label);
2521 rv = parse_dowhile_go(parser, block, out);
2524 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2525 parseerror(parser, "internal error: label stack corrupted");
2531 vec_pop(parser->breaks);
2532 vec_pop(parser->continues);
2537 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out)
2540 ast_expression *cond, *ontrue;
2544 lex_ctx ctx = parser_ctx(parser);
2546 (void)block; /* not touching */
2548 if (!parse_statement_or_block(parser, &ontrue))
2551 /* expect the "while" */
2552 if (parser->tok != TOKEN_KEYWORD ||
2553 strcmp(parser_tokval(parser), "while"))
2555 parseerror(parser, "expected 'while' and condition");
2560 /* skip the 'while' and check for opening paren */
2561 if (!parser_next(parser) || parser->tok != '(') {
2562 parseerror(parser, "expected 'while' condition in parenthesis");
2566 /* parse into the expression */
2567 if (!parser_next(parser)) {
2568 parseerror(parser, "expected 'while' condition after opening paren");
2572 /* parse the condition */
2573 cond = parse_expression_leave(parser, false, true, false);
2577 if (parser->tok != ')') {
2578 parseerror(parser, "expected closing paren after 'while' condition");
2584 if (!parser_next(parser) || parser->tok != ';') {
2585 parseerror(parser, "expected semicolon after condition");
2591 if (!parser_next(parser)) {
2592 parseerror(parser, "parse error");
2598 cond = process_condition(parser, cond, &ifnot);
2603 aloop = ast_loop_new(ctx, NULL, NULL, false, cond, ifnot, NULL, ontrue);
2604 *out = (ast_expression*)aloop;
2608 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out);
2609 static bool parse_for(parser_t *parser, ast_block *block, ast_expression **out)
2614 /* skip the 'for' and check for opening paren */
2615 if (!parser_next(parser)) {
2616 if (OPTS_FLAG(LOOP_LABELS))
2617 parseerror(parser, "expected loop label or 'for' expressions in parenthesis");
2619 parseerror(parser, "expected 'for' expressions in parenthesis");
2623 if (parser->tok == ':') {
2624 if (!OPTS_FLAG(LOOP_LABELS))
2625 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2626 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2627 parseerror(parser, "expected loop label");
2630 label = util_strdup(parser_tokval(parser));
2631 if (!parser_next(parser)) {
2633 parseerror(parser, "expected 'for' expressions in parenthesis");
2638 if (parser->tok != '(') {
2639 parseerror(parser, "expected 'for' expressions in parenthesis");
2643 vec_push(parser->breaks, label);
2644 vec_push(parser->continues, label);
2646 rv = parse_for_go(parser, block, out);
2649 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2650 parseerror(parser, "internal error: label stack corrupted");
2656 vec_pop(parser->breaks);
2657 vec_pop(parser->continues);
2661 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out)
2664 ast_expression *initexpr, *cond, *increment, *ontrue;
2670 lex_ctx ctx = parser_ctx(parser);
2672 parser_enterblock(parser);
2679 /* parse into the expression */
2680 if (!parser_next(parser)) {
2681 parseerror(parser, "expected 'for' initializer after opening paren");
2686 if (parser->tok == TOKEN_IDENT)
2687 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
2689 if (typevar || parser->tok == TOKEN_TYPENAME) {
2691 if (opts.standard != COMPILER_GMQCC) {
2692 if (parsewarning(parser, WARN_EXTENSIONS,
2693 "current standard does not allow variable declarations in for-loop initializers"))
2697 if (!parse_variable(parser, block, true, CV_VAR, typevar, false, false, 0, NULL))
2700 else if (parser->tok != ';')
2702 initexpr = parse_expression_leave(parser, false, false, false);
2707 /* move on to condition */
2708 if (parser->tok != ';') {
2709 parseerror(parser, "expected semicolon after for-loop initializer");
2712 if (!parser_next(parser)) {
2713 parseerror(parser, "expected for-loop condition");
2717 /* parse the condition */
2718 if (parser->tok != ';') {
2719 cond = parse_expression_leave(parser, false, true, false);
2724 /* move on to incrementor */
2725 if (parser->tok != ';') {
2726 parseerror(parser, "expected semicolon after for-loop initializer");
2729 if (!parser_next(parser)) {
2730 parseerror(parser, "expected for-loop condition");
2734 /* parse the incrementor */
2735 if (parser->tok != ')') {
2736 increment = parse_expression_leave(parser, false, false, false);
2739 if (!ast_side_effects(increment)) {
2740 if (genwarning(ast_ctx(increment), WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
2746 if (parser->tok != ')') {
2747 parseerror(parser, "expected closing paren after 'for-loop' incrementor");
2750 /* parse into the 'then' branch */
2751 if (!parser_next(parser)) {
2752 parseerror(parser, "expected for-loop body");
2755 if (!parse_statement_or_block(parser, &ontrue))
2759 cond = process_condition(parser, cond, &ifnot);
2763 aloop = ast_loop_new(ctx, initexpr, cond, ifnot, NULL, false, increment, ontrue);
2764 *out = (ast_expression*)aloop;
2766 if (!parser_leaveblock(parser))
2770 if (initexpr) ast_delete(initexpr);
2771 if (cond) ast_delete(cond);
2772 if (increment) ast_delete(increment);
2773 (void)!parser_leaveblock(parser);
2777 static bool parse_return(parser_t *parser, ast_block *block, ast_expression **out)
2779 ast_expression *exp = NULL;
2780 ast_return *ret = NULL;
2781 ast_value *expected = parser->function->vtype;
2783 lex_ctx ctx = parser_ctx(parser);
2785 (void)block; /* not touching */
2787 if (!parser_next(parser)) {
2788 parseerror(parser, "expected return expression");
2792 if (parser->tok != ';') {
2793 exp = parse_expression(parser, false, false);
2797 if (exp->expression.vtype != TYPE_NIL &&
2798 exp->expression.vtype != expected->expression.next->expression.vtype)
2800 parseerror(parser, "return with invalid expression");
2803 ret = ast_return_new(ctx, exp);
2809 if (!parser_next(parser))
2810 parseerror(parser, "parse error");
2811 if (expected->expression.next->expression.vtype != TYPE_VOID) {
2812 (void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value");
2814 ret = ast_return_new(ctx, NULL);
2816 *out = (ast_expression*)ret;
2820 static bool parse_break_continue(parser_t *parser, ast_block *block, ast_expression **out, bool is_continue)
2823 unsigned int levels = 0;
2824 lex_ctx ctx = parser_ctx(parser);
2825 const char **loops = (is_continue ? parser->continues : parser->breaks);
2827 (void)block; /* not touching */
2828 if (!parser_next(parser)) {
2829 parseerror(parser, "expected semicolon or loop label");
2833 if (!vec_size(loops)) {
2835 parseerror(parser, "`continue` can only be used inside loops");
2837 parseerror(parser, "`break` can only be used inside loops or switches");
2840 if (parser->tok == TOKEN_IDENT) {
2841 if (!OPTS_FLAG(LOOP_LABELS))
2842 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2843 i = vec_size(loops);
2845 if (loops[i] && !strcmp(loops[i], parser_tokval(parser)))
2848 parseerror(parser, "no such loop to %s: `%s`",
2849 (is_continue ? "continue" : "break out of"),
2850 parser_tokval(parser));
2855 if (!parser_next(parser)) {
2856 parseerror(parser, "expected semicolon");
2861 if (parser->tok != ';') {
2862 parseerror(parser, "expected semicolon");
2866 if (!parser_next(parser))
2867 parseerror(parser, "parse error");
2869 *out = (ast_expression*)ast_breakcont_new(ctx, is_continue, levels);
2873 /* returns true when it was a variable qualifier, false otherwise!
2874 * on error, cvq is set to CV_WRONG
2876 static bool parse_qualifiers(parser_t *parser, bool with_local, int *cvq, bool *noref, bool *is_static, uint32_t *_flags, char **message)
2878 bool had_const = false;
2879 bool had_var = false;
2880 bool had_noref = false;
2881 bool had_attrib = false;
2882 bool had_static = false;
2887 if (parser->tok == TOKEN_ATTRIBUTE_OPEN) {
2889 /* parse an attribute */
2890 if (!parser_next(parser)) {
2891 parseerror(parser, "expected attribute after `[[`");
2895 if (!strcmp(parser_tokval(parser), "noreturn")) {
2896 flags |= AST_FLAG_NORETURN;
2897 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2898 parseerror(parser, "`noreturn` attribute has no parameters, expected `]]`");
2903 else if (!strcmp(parser_tokval(parser), "noref")) {
2905 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2906 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2911 else if (!strcmp(parser_tokval(parser), "inline")) {
2912 flags |= AST_FLAG_INLINE;
2913 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2914 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2921 else if (!strcmp(parser_tokval(parser), "deprecated") && !(flags & AST_FLAG_DEPRECATED)) {
2922 flags |= AST_FLAG_DEPRECATED;
2925 if (!parser_next(parser)) {
2926 parseerror(parser, "parse error in attribute");
2930 if (parser->tok == '(') {
2931 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
2932 parseerror(parser, "`deprecated` attribute missing parameter");
2936 *message = util_strdup(parser_tokval(parser));
2938 if (!parser_next(parser)) {
2939 parseerror(parser, "parse error in attribute");
2943 if(parser->tok != ')') {
2944 parseerror(parser, "`deprecated` attribute expected `)` after parameter");
2948 if (!parser_next(parser)) {
2949 parseerror(parser, "parse error in attribute");
2954 if (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2955 parseerror(parser, "`deprecated` attribute expected `]]`");
2958 if (*message) mem_d(*message);
2966 /* Skip tokens until we hit a ]] */
2967 (void)!parsewarning(parser, WARN_UNKNOWN_ATTRIBUTE, "unknown attribute starting with `%s`", parser_tokval(parser));
2968 while (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2969 if (!parser_next(parser)) {
2970 parseerror(parser, "error inside attribute");
2977 else if (with_local && !strcmp(parser_tokval(parser), "static"))
2979 else if (!strcmp(parser_tokval(parser), "const"))
2981 else if (!strcmp(parser_tokval(parser), "var"))
2983 else if (with_local && !strcmp(parser_tokval(parser), "local"))
2985 else if (!strcmp(parser_tokval(parser), "noref"))
2987 else if (!had_const && !had_var && !had_noref && !had_attrib && !had_static && !flags) {
2992 if (!parser_next(parser))
3002 *is_static = had_static;
3006 parseerror(parser, "parse error after variable qualifier");
3011 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out);
3012 static bool parse_switch(parser_t *parser, ast_block *block, ast_expression **out)
3017 /* skip the 'while' and get the body */
3018 if (!parser_next(parser)) {
3019 if (OPTS_FLAG(LOOP_LABELS))
3020 parseerror(parser, "expected loop label or 'switch' operand in parenthesis");
3022 parseerror(parser, "expected 'switch' operand in parenthesis");
3026 if (parser->tok == ':') {
3027 if (!OPTS_FLAG(LOOP_LABELS))
3028 parseerror(parser, "labeled loops not activated, try using -floop-labels");
3029 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
3030 parseerror(parser, "expected loop label");
3033 label = util_strdup(parser_tokval(parser));
3034 if (!parser_next(parser)) {
3036 parseerror(parser, "expected 'switch' operand in parenthesis");
3041 if (parser->tok != '(') {
3042 parseerror(parser, "expected 'switch' operand in parenthesis");
3046 vec_push(parser->breaks, label);
3048 rv = parse_switch_go(parser, block, out);
3051 if (vec_last(parser->breaks) != label) {
3052 parseerror(parser, "internal error: label stack corrupted");
3058 vec_pop(parser->breaks);
3063 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out)
3065 ast_expression *operand;
3068 ast_switch *switchnode;
3069 ast_switch_case swcase;
3072 bool noref, is_static;
3073 uint32_t qflags = 0;
3075 lex_ctx ctx = parser_ctx(parser);
3077 (void)block; /* not touching */
3080 /* parse into the expression */
3081 if (!parser_next(parser)) {
3082 parseerror(parser, "expected switch operand");
3085 /* parse the operand */
3086 operand = parse_expression_leave(parser, false, false, false);
3090 switchnode = ast_switch_new(ctx, operand);
3093 if (parser->tok != ')') {
3094 ast_delete(switchnode);
3095 parseerror(parser, "expected closing paren after 'switch' operand");
3099 /* parse over the opening paren */
3100 if (!parser_next(parser) || parser->tok != '{') {
3101 ast_delete(switchnode);
3102 parseerror(parser, "expected list of cases");
3106 if (!parser_next(parser)) {
3107 ast_delete(switchnode);
3108 parseerror(parser, "expected 'case' or 'default'");
3112 /* new block; allow some variables to be declared here */
3113 parser_enterblock(parser);
3116 if (parser->tok == TOKEN_IDENT)
3117 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
3118 if (typevar || parser->tok == TOKEN_TYPENAME) {
3119 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL)) {
3120 ast_delete(switchnode);
3125 if (parse_qualifiers(parser, true, &cvq, &noref, &is_static, &qflags, NULL))
3127 if (cvq == CV_WRONG) {
3128 ast_delete(switchnode);
3131 if (!parse_variable(parser, block, false, cvq, NULL, noref, is_static, qflags, NULL)) {
3132 ast_delete(switchnode);
3141 while (parser->tok != '}') {
3142 ast_block *caseblock;
3144 if (!strcmp(parser_tokval(parser), "case")) {
3145 if (!parser_next(parser)) {
3146 ast_delete(switchnode);
3147 parseerror(parser, "expected expression for case");
3150 swcase.value = parse_expression_leave(parser, false, false, false);
3151 if (!swcase.value) {
3152 ast_delete(switchnode);
3153 parseerror(parser, "expected expression for case");
3156 if (!OPTS_FLAG(RELAXED_SWITCH)) {
3157 if (!ast_istype(swcase.value, ast_value)) { /* || ((ast_value*)swcase.value)->cvq != CV_CONST) { */
3158 parseerror(parser, "case on non-constant values need to be explicitly enabled via -frelaxed-switch");
3164 else if (!strcmp(parser_tokval(parser), "default")) {
3165 swcase.value = NULL;
3166 if (!parser_next(parser)) {
3167 ast_delete(switchnode);
3168 parseerror(parser, "expected colon");
3173 ast_delete(switchnode);
3174 parseerror(parser, "expected 'case' or 'default'");
3178 /* Now the colon and body */
3179 if (parser->tok != ':') {
3180 if (swcase.value) ast_unref(swcase.value);
3181 ast_delete(switchnode);
3182 parseerror(parser, "expected colon");
3186 if (!parser_next(parser)) {
3187 if (swcase.value) ast_unref(swcase.value);
3188 ast_delete(switchnode);
3189 parseerror(parser, "expected statements or case");
3192 caseblock = ast_block_new(parser_ctx(parser));
3194 if (swcase.value) ast_unref(swcase.value);
3195 ast_delete(switchnode);
3198 swcase.code = (ast_expression*)caseblock;
3199 vec_push(switchnode->cases, swcase);
3201 ast_expression *expr;
3202 if (parser->tok == '}')
3204 if (parser->tok == TOKEN_KEYWORD) {
3205 if (!strcmp(parser_tokval(parser), "case") ||
3206 !strcmp(parser_tokval(parser), "default"))
3211 if (!parse_statement(parser, caseblock, &expr, true)) {
3212 ast_delete(switchnode);
3217 if (!ast_block_add_expr(caseblock, expr)) {
3218 ast_delete(switchnode);
3224 parser_leaveblock(parser);
3227 if (parser->tok != '}') {
3228 ast_delete(switchnode);
3229 parseerror(parser, "expected closing paren of case list");
3232 if (!parser_next(parser)) {
3233 ast_delete(switchnode);
3234 parseerror(parser, "parse error after switch");
3237 *out = (ast_expression*)switchnode;
3241 /* parse computed goto sides */
3242 static ast_expression *parse_goto_computed(parser_t *parser, ast_expression **side) {
3243 ast_expression *on_true;
3244 ast_expression *on_false;
3245 ast_expression *cond;
3250 if (ast_istype(*side, ast_ternary)) {
3251 ast_ternary *tern = (ast_ternary*)*side;
3252 on_true = parse_goto_computed(parser, &tern->on_true);
3253 on_false = parse_goto_computed(parser, &tern->on_false);
3255 if (!on_true || !on_false) {
3256 parseerror(parser, "expected label or expression in ternary");
3257 if (on_true) ast_unref(on_true);
3258 if (on_false) ast_unref(on_false);
3266 return (ast_expression*)ast_ifthen_new(parser_ctx(parser), cond, on_true, on_false);
3267 } else if (ast_istype(*side, ast_label)) {
3268 ast_goto *gt = ast_goto_new(parser_ctx(parser), ((ast_label*)*side)->name);
3269 ast_goto_set_label(gt, ((ast_label*)*side));
3271 return (ast_expression*)gt;
3276 static bool parse_goto(parser_t *parser, ast_expression **out)
3278 ast_goto *gt = NULL;
3279 ast_expression *lbl;
3281 if (!parser_next(parser))
3284 if (parser->tok != TOKEN_IDENT) {
3285 ast_expression *expression;
3287 /* could be an expression i.e computed goto :-) */
3288 if (parser->tok != '(') {
3289 parseerror(parser, "expected label name after `goto`");
3293 /* failed to parse expression for goto */
3294 if (!(expression = parse_expression(parser, false, true)) ||
3295 !(*out = parse_goto_computed(parser, &expression))) {
3296 parseerror(parser, "invalid goto expression");
3297 ast_unref(expression);
3304 /* not computed goto */
3305 gt = ast_goto_new(parser_ctx(parser), parser_tokval(parser));
3306 lbl = parser_find_label(parser, gt->name);
3308 if (!ast_istype(lbl, ast_label)) {
3309 parseerror(parser, "internal error: label is not an ast_label");
3313 ast_goto_set_label(gt, (ast_label*)lbl);
3316 vec_push(parser->gotos, gt);
3318 if (!parser_next(parser) || parser->tok != ';') {
3319 parseerror(parser, "semicolon expected after goto label");
3322 if (!parser_next(parser)) {
3323 parseerror(parser, "parse error after goto");
3327 *out = (ast_expression*)gt;
3331 static bool parse_skipwhite(parser_t *parser)
3334 if (!parser_next(parser))
3336 } while (parser->tok == TOKEN_WHITE && parser->tok < TOKEN_ERROR);
3337 return parser->tok < TOKEN_ERROR;
3340 static bool parse_eol(parser_t *parser)
3342 if (!parse_skipwhite(parser))
3344 return parser->tok == TOKEN_EOL;
3347 static bool parse_pragma_do(parser_t *parser)
3349 if (!parser_next(parser) ||
3350 parser->tok != TOKEN_IDENT ||
3351 strcmp(parser_tokval(parser), "pragma"))
3353 parseerror(parser, "expected `pragma` keyword after `#`, got `%s`", parser_tokval(parser));
3356 if (!parse_skipwhite(parser) || parser->tok != TOKEN_IDENT) {
3357 parseerror(parser, "expected pragma, got `%s`", parser_tokval(parser));
3361 if (!strcmp(parser_tokval(parser), "noref")) {
3362 if (!parse_skipwhite(parser) || parser->tok != TOKEN_INTCONST) {
3363 parseerror(parser, "`noref` pragma requires an argument: 0 or 1");
3366 parser->noref = !!parser_token(parser)->constval.i;
3367 if (!parse_eol(parser)) {
3368 parseerror(parser, "parse error after `noref` pragma");
3374 (void)!parsewarning(parser, WARN_UNKNOWN_PRAGMAS, "ignoring #pragma %s", parser_tokval(parser));
3381 static bool parse_pragma(parser_t *parser)
3384 parser->lex->flags.preprocessing = true;
3385 parser->lex->flags.mergelines = true;
3386 rv = parse_pragma_do(parser);
3387 if (parser->tok != TOKEN_EOL) {
3388 parseerror(parser, "junk after pragma");
3391 parser->lex->flags.preprocessing = false;
3392 parser->lex->flags.mergelines = false;
3393 if (!parser_next(parser)) {
3394 parseerror(parser, "parse error after pragma");
3400 static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases)
3402 bool noref, is_static;
3404 uint32_t qflags = 0;
3405 ast_value *typevar = NULL;
3406 char *vstring = NULL;
3410 if (parser->tok == TOKEN_IDENT)
3411 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
3413 if (typevar || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
3415 /* local variable */
3417 parseerror(parser, "cannot declare a variable from here");
3420 if (opts.standard == COMPILER_QCC) {
3421 if (parsewarning(parser, WARN_EXTENSIONS, "missing 'local' keyword when declaring a local variable"))
3424 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL))
3428 else if (parse_qualifiers(parser, !!block, &cvq, &noref, &is_static, &qflags, &vstring))
3430 if (cvq == CV_WRONG)
3432 return parse_variable(parser, block, true, cvq, NULL, noref, is_static, qflags, vstring);
3434 else if (parser->tok == TOKEN_KEYWORD)
3436 if (!strcmp(parser_tokval(parser), "__builtin_debug_printtype"))
3441 if (!parser_next(parser)) {
3442 parseerror(parser, "parse error after __builtin_debug_printtype");
3446 if (parser->tok == TOKEN_IDENT && (tdef = parser_find_typedef(parser, parser_tokval(parser), 0)))
3448 ast_type_to_string((ast_expression*)tdef, ty, sizeof(ty));
3449 con_out("__builtin_debug_printtype: `%s`=`%s`\n", tdef->name, ty);
3450 if (!parser_next(parser)) {
3451 parseerror(parser, "parse error after __builtin_debug_printtype typename argument");
3457 if (!parse_statement(parser, block, out, allow_cases))
3460 con_out("__builtin_debug_printtype: got no output node\n");
3463 ast_type_to_string(*out, ty, sizeof(ty));
3464 con_out("__builtin_debug_printtype: `%s`\n", ty);
3469 else if (!strcmp(parser_tokval(parser), "return"))
3471 return parse_return(parser, block, out);
3473 else if (!strcmp(parser_tokval(parser), "if"))
3475 return parse_if(parser, block, out);
3477 else if (!strcmp(parser_tokval(parser), "while"))
3479 return parse_while(parser, block, out);
3481 else if (!strcmp(parser_tokval(parser), "do"))
3483 return parse_dowhile(parser, block, out);
3485 else if (!strcmp(parser_tokval(parser), "for"))
3487 if (opts.standard == COMPILER_QCC) {
3488 if (parsewarning(parser, WARN_EXTENSIONS, "for loops are not recognized in the original Quake C standard, to enable try an alternate standard --std=?"))
3491 return parse_for(parser, block, out);
3493 else if (!strcmp(parser_tokval(parser), "break"))
3495 return parse_break_continue(parser, block, out, false);
3497 else if (!strcmp(parser_tokval(parser), "continue"))
3499 return parse_break_continue(parser, block, out, true);
3501 else if (!strcmp(parser_tokval(parser), "switch"))
3503 return parse_switch(parser, block, out);
3505 else if (!strcmp(parser_tokval(parser), "case") ||
3506 !strcmp(parser_tokval(parser), "default"))
3509 parseerror(parser, "unexpected 'case' label");
3514 else if (!strcmp(parser_tokval(parser), "goto"))
3516 return parse_goto(parser, out);
3518 else if (!strcmp(parser_tokval(parser), "typedef"))
3520 if (!parser_next(parser)) {
3521 parseerror(parser, "expected type definition after 'typedef'");
3524 return parse_typedef(parser);
3526 parseerror(parser, "Unexpected keyword");
3529 else if (parser->tok == '{')
3532 inner = parse_block(parser);
3535 *out = (ast_expression*)inner;
3538 else if (parser->tok == ':')
3542 if (!parser_next(parser)) {
3543 parseerror(parser, "expected label name");
3546 if (parser->tok != TOKEN_IDENT) {
3547 parseerror(parser, "label must be an identifier");
3550 label = (ast_label*)parser_find_label(parser, parser_tokval(parser));
3552 if (!label->undefined) {
3553 parseerror(parser, "label `%s` already defined", label->name);
3556 label->undefined = false;
3559 label = ast_label_new(parser_ctx(parser), parser_tokval(parser), false);
3560 vec_push(parser->labels, label);
3562 *out = (ast_expression*)label;
3563 if (!parser_next(parser)) {
3564 parseerror(parser, "parse error after label");
3567 for (i = 0; i < vec_size(parser->gotos); ++i) {
3568 if (!strcmp(parser->gotos[i]->name, label->name)) {
3569 ast_goto_set_label(parser->gotos[i], label);
3570 vec_remove(parser->gotos, i, 1);
3576 else if (parser->tok == ';')
3578 if (!parser_next(parser)) {
3579 parseerror(parser, "parse error after empty statement");
3586 ast_expression *exp = parse_expression(parser, false, false);
3590 if (!ast_side_effects(exp)) {
3591 if (genwarning(ast_ctx(exp), WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
3598 static bool parse_enum(parser_t *parser)
3601 ast_value **values = NULL;
3602 ast_value *var = NULL;
3605 ast_expression *old;
3607 if (!parser_next(parser) || parser->tok != '{') {
3608 parseerror(parser, "expected `{` after `enum` keyword");
3613 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
3614 if (parser->tok == '}') {
3615 /* allow an empty enum */
3618 parseerror(parser, "expected identifier or `}`");
3622 old = parser_find_field(parser, parser_tokval(parser));
3624 old = parser_find_global(parser, parser_tokval(parser));
3626 parseerror(parser, "value `%s` has already been declared here: %s:%i",
3627 parser_tokval(parser), ast_ctx(old).file, ast_ctx(old).line);
3631 var = ast_value_new(parser_ctx(parser), parser_tokval(parser), TYPE_FLOAT);
3632 vec_push(values, var);
3633 var->cvq = CV_CONST;
3634 var->hasvalue = true;
3635 var->constval.vfloat = num++;
3637 parser_addglobal(parser, var->name, (ast_expression*)var);
3639 if (!parser_next(parser)) {
3640 parseerror(parser, "expected `=`, `}` or comma after identifier");
3644 if (parser->tok == ',')
3646 if (parser->tok == '}')
3648 if (parser->tok != '=') {
3649 parseerror(parser, "expected `=`, `}` or comma after identifier");
3653 if (!parser_next(parser)) {
3654 parseerror(parser, "expected expression after `=`");
3658 /* We got a value! */
3659 old = parse_expression_leave(parser, true, false, false);
3660 asvalue = (ast_value*)old;
3661 if (!ast_istype(old, ast_value) || asvalue->cvq != CV_CONST || !asvalue->hasvalue) {
3662 compile_error(ast_ctx(var), "constant value or expression expected");
3665 num = (var->constval.vfloat = asvalue->constval.vfloat) + 1;
3667 if (parser->tok == '}')
3669 if (parser->tok != ',') {
3670 parseerror(parser, "expected `}` or comma after expression");
3675 if (parser->tok != '}') {
3676 parseerror(parser, "internal error: breaking without `}`");
3680 if (!parser_next(parser) || parser->tok != ';') {
3681 parseerror(parser, "expected semicolon after enumeration");
3685 if (!parser_next(parser)) {
3686 parseerror(parser, "parse error after enumeration");
3698 static bool parse_block_into(parser_t *parser, ast_block *block)
3702 parser_enterblock(parser);
3704 if (!parser_next(parser)) { /* skip the '{' */
3705 parseerror(parser, "expected function body");
3709 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
3711 ast_expression *expr = NULL;
3712 if (parser->tok == '}')
3715 if (!parse_statement(parser, block, &expr, false)) {
3716 /* parseerror(parser, "parse error"); */
3722 if (!ast_block_add_expr(block, expr)) {
3729 if (parser->tok != '}') {
3732 (void)parser_next(parser);
3736 if (!parser_leaveblock(parser))
3738 return retval && !!block;
3741 static ast_block* parse_block(parser_t *parser)
3744 block = ast_block_new(parser_ctx(parser));
3747 if (!parse_block_into(parser, block)) {
3748 ast_block_delete(block);
3754 static bool parse_statement_or_block(parser_t *parser, ast_expression **out)
3756 if (parser->tok == '{') {
3757 *out = (ast_expression*)parse_block(parser);
3760 return parse_statement(parser, NULL, out, false);
3763 static bool create_vector_members(ast_value *var, ast_member **me)
3766 size_t len = strlen(var->name);
3768 for (i = 0; i < 3; ++i) {
3769 char *name = (char*)mem_a(len+3);
3770 memcpy(name, var->name, len);
3772 name[len+1] = 'x'+i;
3774 me[i] = ast_member_new(ast_ctx(var), (ast_expression*)var, i, name);
3783 do { ast_member_delete(me[--i]); } while(i);
3787 static bool parse_function_body(parser_t *parser, ast_value *var)
3789 ast_block *block = NULL;
3794 ast_expression *framenum = NULL;
3795 ast_expression *nextthink = NULL;
3796 /* None of the following have to be deleted */
3797 ast_expression *fld_think = NULL, *fld_nextthink = NULL, *fld_frame = NULL;
3798 ast_expression *gbl_time = NULL, *gbl_self = NULL;
3799 bool has_frame_think;
3803 has_frame_think = false;
3804 old = parser->function;
3806 if (vec_size(parser->gotos) || vec_size(parser->labels)) {
3807 parseerror(parser, "gotos/labels leaking");
3811 if (!OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC) {
3812 if (parsewarning(parser, WARN_VARIADIC_FUNCTION,
3813 "variadic function with implementation will not be able to access additional parameters (try -fvariadic-args)"))
3819 if (parser->tok == '[') {
3820 /* got a frame definition: [ framenum, nextthink ]
3821 * this translates to:
3822 * self.frame = framenum;
3823 * self.nextthink = time + 0.1;
3824 * self.think = nextthink;
3828 fld_think = parser_find_field(parser, "think");
3829 fld_nextthink = parser_find_field(parser, "nextthink");
3830 fld_frame = parser_find_field(parser, "frame");
3831 if (!fld_think || !fld_nextthink || !fld_frame) {
3832 parseerror(parser, "cannot use [frame,think] notation without the required fields");
3833 parseerror(parser, "please declare the following entityfields: `frame`, `think`, `nextthink`");
3836 gbl_time = parser_find_global(parser, "time");
3837 gbl_self = parser_find_global(parser, "self");
3838 if (!gbl_time || !gbl_self) {
3839 parseerror(parser, "cannot use [frame,think] notation without the required globals");
3840 parseerror(parser, "please declare the following globals: `time`, `self`");
3844 if (!parser_next(parser))
3847 framenum = parse_expression_leave(parser, true, false, false);
3849 parseerror(parser, "expected a framenumber constant in[frame,think] notation");
3852 if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->hasvalue) {
3853 ast_unref(framenum);
3854 parseerror(parser, "framenumber in [frame,think] notation must be a constant");
3858 if (parser->tok != ',') {
3859 ast_unref(framenum);
3860 parseerror(parser, "expected comma after frame number in [frame,think] notation");
3861 parseerror(parser, "Got a %i\n", parser->tok);
3865 if (!parser_next(parser)) {
3866 ast_unref(framenum);
3870 if (parser->tok == TOKEN_IDENT && !parser_find_var(parser, parser_tokval(parser)))
3872 /* qc allows the use of not-yet-declared functions here
3873 * - this automatically creates a prototype */
3874 ast_value *thinkfunc;
3875 ast_expression *functype = fld_think->expression.next;
3877 thinkfunc = ast_value_new(parser_ctx(parser), parser_tokval(parser), functype->expression.vtype);
3878 if (!thinkfunc || !ast_type_adopt(thinkfunc, functype)) {
3879 ast_unref(framenum);
3880 parseerror(parser, "failed to create implicit prototype for `%s`", parser_tokval(parser));
3884 if (!parser_next(parser)) {
3885 ast_unref(framenum);
3886 ast_delete(thinkfunc);
3890 parser_addglobal(parser, thinkfunc->name, (ast_expression*)thinkfunc);
3892 nextthink = (ast_expression*)thinkfunc;
3895 nextthink = parse_expression_leave(parser, true, false, false);
3897 ast_unref(framenum);
3898 parseerror(parser, "expected a think-function in [frame,think] notation");
3903 if (!ast_istype(nextthink, ast_value)) {
3904 parseerror(parser, "think-function in [frame,think] notation must be a constant");
3908 if (retval && parser->tok != ']') {
3909 parseerror(parser, "expected closing `]` for [frame,think] notation");
3913 if (retval && !parser_next(parser)) {
3917 if (retval && parser->tok != '{') {
3918 parseerror(parser, "a function body has to be declared after a [frame,think] declaration");
3923 ast_unref(nextthink);
3924 ast_unref(framenum);
3928 has_frame_think = true;
3931 block = ast_block_new(parser_ctx(parser));
3933 parseerror(parser, "failed to allocate block");
3934 if (has_frame_think) {
3935 ast_unref(nextthink);
3936 ast_unref(framenum);
3941 if (has_frame_think) {
3943 ast_expression *self_frame;
3944 ast_expression *self_nextthink;
3945 ast_expression *self_think;
3946 ast_expression *time_plus_1;
3947 ast_store *store_frame;
3948 ast_store *store_nextthink;
3949 ast_store *store_think;
3951 ctx = parser_ctx(parser);
3952 self_frame = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_frame);
3953 self_nextthink = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_nextthink);
3954 self_think = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_think);
3956 time_plus_1 = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F,
3957 gbl_time, (ast_expression*)parser_const_float(parser, 0.1));
3959 if (!self_frame || !self_nextthink || !self_think || !time_plus_1) {
3960 if (self_frame) ast_delete(self_frame);
3961 if (self_nextthink) ast_delete(self_nextthink);
3962 if (self_think) ast_delete(self_think);
3963 if (time_plus_1) ast_delete(time_plus_1);
3969 store_frame = ast_store_new(ctx, INSTR_STOREP_F, self_frame, framenum);
3970 store_nextthink = ast_store_new(ctx, INSTR_STOREP_F, self_nextthink, time_plus_1);
3971 store_think = ast_store_new(ctx, INSTR_STOREP_FNC, self_think, nextthink);
3974 ast_delete(self_frame);
3977 if (!store_nextthink) {
3978 ast_delete(self_nextthink);
3982 ast_delete(self_think);
3986 if (store_frame) ast_delete(store_frame);
3987 if (store_nextthink) ast_delete(store_nextthink);
3988 if (store_think) ast_delete(store_think);
3991 if (!ast_block_add_expr(block, (ast_expression*)store_frame) ||
3992 !ast_block_add_expr(block, (ast_expression*)store_nextthink) ||
3993 !ast_block_add_expr(block, (ast_expression*)store_think))
4000 parseerror(parser, "failed to generate code for [frame,think]");
4001 ast_unref(nextthink);
4002 ast_unref(framenum);
4008 parser_enterblock(parser);
4010 for (parami = 0; parami < vec_size(var->expression.params); ++parami) {
4012 ast_value *param = var->expression.params[parami];
4015 if (param->expression.vtype != TYPE_VECTOR &&
4016 (param->expression.vtype != TYPE_FIELD ||
4017 param->expression.next->expression.vtype != TYPE_VECTOR))
4022 if (!create_vector_members(param, me)) {
4023 ast_block_delete(block);
4027 for (e = 0; e < 3; ++e) {
4028 parser_addlocal(parser, me[e]->name, (ast_expression*)me[e]);
4029 ast_block_collect(block, (ast_expression*)me[e]);
4033 func = ast_function_new(ast_ctx(var), var->name, var);
4035 parseerror(parser, "failed to allocate function for `%s`", var->name);
4036 ast_block_delete(block);
4039 vec_push(parser->functions, func);
4041 if (var->argcounter) {
4042 ast_value *argc = ast_value_new(ast_ctx(var), var->argcounter, TYPE_FLOAT);
4043 parser_addlocal(parser, argc->name, (ast_expression*)argc);
4047 if (OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC) {
4049 ast_value *varargs = ast_value_new(ast_ctx(var), "reserved:va_args", TYPE_ARRAY);
4050 varargs->expression.flags |= AST_FLAG_IS_VARARG;
4051 varargs->expression.next = (ast_expression*)ast_value_new(ast_ctx(var), NULL, TYPE_VECTOR);
4052 varargs->expression.count = 0;
4053 snprintf(name, sizeof(name), "%s##va##SET", var->name);
4054 if (!parser_create_array_setter_proto(parser, varargs, name)) {
4055 ast_delete(varargs);
4056 ast_block_delete(block);
4059 snprintf(name, sizeof(name), "%s##va##GET", var->name);
4060 if (!parser_create_array_getter_proto(parser, varargs, varargs->expression.next, name)) {
4061 ast_delete(varargs);
4062 ast_block_delete(block);
4065 func->varargs = varargs;
4068 parser->function = func;
4069 if (!parse_block_into(parser, block)) {
4070 ast_block_delete(block);
4074 vec_push(func->blocks, block);
4076 parser->function = old;
4077 if (!parser_leaveblock(parser))
4079 if (vec_size(parser->variables) != PARSER_HT_LOCALS) {
4080 parseerror(parser, "internal error: local scopes left");
4084 if (parser->tok == ';')
4085 return parser_next(parser);
4086 else if (opts.standard == COMPILER_QCC)
4087 parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)");
4091 vec_pop(parser->functions);
4092 ast_function_delete(func);
4093 var->constval.vfunc = NULL;
4096 (void)!parser_leaveblock(parser);
4097 parser->function = old;
4101 static ast_expression *array_accessor_split(
4106 ast_expression *left,
4107 ast_expression *right
4113 lex_ctx ctx = ast_ctx(array);
4115 if (!left || !right) {
4116 if (left) ast_delete(left);
4117 if (right) ast_delete(right);
4121 cmp = ast_binary_new(ctx, INSTR_LT,
4122 (ast_expression*)index,
4123 (ast_expression*)parser_const_float(parser, middle));
4127 parseerror(parser, "internal error: failed to create comparison for array setter");
4131 ifthen = ast_ifthen_new(ctx, (ast_expression*)cmp, left, right);
4133 ast_delete(cmp); /* will delete left and right */
4134 parseerror(parser, "internal error: failed to create conditional jump for array setter");
4138 return (ast_expression*)ifthen;
4141 static ast_expression *array_setter_node(parser_t *parser, ast_value *array, ast_value *index, ast_value *value, size_t from, size_t afterend)
4143 lex_ctx ctx = ast_ctx(array);
4145 if (from+1 == afterend) {
4146 /* set this value */
4149 ast_array_index *subscript;
4151 int assignop = type_store_instr[value->expression.vtype];
4153 if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR)
4154 assignop = INSTR_STORE_V;
4156 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
4160 st = ast_store_new(ctx, assignop, (ast_expression*)subscript, (ast_expression*)value);
4162 ast_delete(subscript);
4166 block = ast_block_new(ctx);
4172 if (!ast_block_add_expr(block, (ast_expression*)st)) {
4177 ret = ast_return_new(ctx, NULL);
4183 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
4188 return (ast_expression*)block;
4190 ast_expression *left, *right;
4191 size_t diff = afterend - from;
4192 size_t middle = from + diff/2;
4193 left = array_setter_node(parser, array, index, value, from, middle);
4194 right = array_setter_node(parser, array, index, value, middle, afterend);
4195 return array_accessor_split(parser, array, index, middle, left, right);
4199 static ast_expression *array_field_setter_node(
4208 lex_ctx ctx = ast_ctx(array);
4210 if (from+1 == afterend) {
4211 /* set this value */
4214 ast_entfield *entfield;
4215 ast_array_index *subscript;
4217 int assignop = type_storep_instr[value->expression.vtype];
4219 if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR)
4220 assignop = INSTR_STOREP_V;
4222 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
4226 subscript->expression.next = ast_type_copy(ast_ctx(subscript), (ast_expression*)subscript);
4227 subscript->expression.vtype = TYPE_FIELD;
4229 entfield = ast_entfield_new_force(ctx,
4230 (ast_expression*)entity,
4231 (ast_expression*)subscript,
4232 (ast_expression*)subscript);
4234 ast_delete(subscript);
4238 st = ast_store_new(ctx, assignop, (ast_expression*)entfield, (ast_expression*)value);
4240 ast_delete(entfield);
4244 block = ast_block_new(ctx);
4250 if (!ast_block_add_expr(block, (ast_expression*)st)) {
4255 ret = ast_return_new(ctx, NULL);
4261 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
4266 return (ast_expression*)block;
4268 ast_expression *left, *right;
4269 size_t diff = afterend - from;
4270 size_t middle = from + diff/2;
4271 left = array_field_setter_node(parser, array, entity, index, value, from, middle);
4272 right = array_field_setter_node(parser, array, entity, index, value, middle, afterend);
4273 return array_accessor_split(parser, array, index, middle, left, right);
4277 static ast_expression *array_getter_node(parser_t *parser, ast_value *array, ast_value *index, size_t from, size_t afterend)
4279 lex_ctx ctx = ast_ctx(array);
4281 if (from+1 == afterend) {
4283 ast_array_index *subscript;
4285 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
4289 ret = ast_return_new(ctx, (ast_expression*)subscript);
4291 ast_delete(subscript);
4295 return (ast_expression*)ret;
4297 ast_expression *left, *right;
4298 size_t diff = afterend - from;
4299 size_t middle = from + diff/2;
4300 left = array_getter_node(parser, array, index, from, middle);
4301 right = array_getter_node(parser, array, index, middle, afterend);
4302 return array_accessor_split(parser, array, index, middle, left, right);
4306 static bool parser_create_array_accessor(parser_t *parser, ast_value *array, const char *funcname, ast_value **out)
4308 ast_function *func = NULL;
4309 ast_value *fval = NULL;
4310 ast_block *body = NULL;
4312 fval = ast_value_new(ast_ctx(array), funcname, TYPE_FUNCTION);
4314 parseerror(parser, "failed to create accessor function value");
4318 func = ast_function_new(ast_ctx(array), funcname, fval);
4321 parseerror(parser, "failed to create accessor function node");
4325 body = ast_block_new(ast_ctx(array));
4327 parseerror(parser, "failed to create block for array accessor");
4333 vec_push(func->blocks, body);
4336 vec_push(parser->accessors, fval);
4341 static ast_value* parser_create_array_setter_proto(parser_t *parser, ast_value *array, const char *funcname)
4343 ast_value *index = NULL;
4344 ast_value *value = NULL;
4348 if (!ast_istype(array->expression.next, ast_value)) {
4349 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4353 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4355 func = fval->constval.vfunc;
4356 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
4358 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4359 value = ast_value_copy((ast_value*)array->expression.next);
4361 if (!index || !value) {
4362 parseerror(parser, "failed to create locals for array accessor");
4365 (void)!ast_value_set_name(value, "value"); /* not important */
4366 vec_push(fval->expression.params, index);
4367 vec_push(fval->expression.params, value);
4369 array->setter = fval;
4372 if (index) ast_delete(index);
4373 if (value) ast_delete(value);
4379 static bool parser_create_array_setter_impl(parser_t *parser, ast_value *array)
4381 ast_expression *root = NULL;
4382 root = array_setter_node(parser, array,
4383 array->setter->expression.params[0],
4384 array->setter->expression.params[1],
4385 0, array->expression.count);
4387 parseerror(parser, "failed to build accessor search tree");
4390 if (!ast_block_add_expr(array->setter->constval.vfunc->blocks[0], root)) {
4397 static bool parser_create_array_setter(parser_t *parser, ast_value *array, const char *funcname)
4399 if (!parser_create_array_setter_proto(parser, array, funcname))
4401 return parser_create_array_setter_impl(parser, array);
4404 static bool parser_create_array_field_setter(parser_t *parser, ast_value *array, const char *funcname)
4406 ast_expression *root = NULL;
4407 ast_value *entity = NULL;
4408 ast_value *index = NULL;
4409 ast_value *value = NULL;
4413 if (!ast_istype(array->expression.next, ast_value)) {
4414 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4418 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4420 func = fval->constval.vfunc;
4421 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
4423 entity = ast_value_new(ast_ctx(array), "entity", TYPE_ENTITY);
4424 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4425 value = ast_value_copy((ast_value*)array->expression.next);
4426 if (!entity || !index || !value) {
4427 parseerror(parser, "failed to create locals for array accessor");
4430 (void)!ast_value_set_name(value, "value"); /* not important */
4431 vec_push(fval->expression.params, entity);
4432 vec_push(fval->expression.params, index);
4433 vec_push(fval->expression.params, value);
4435 root = array_field_setter_node(parser, array, entity, index, value, 0, array->expression.count);
4437 parseerror(parser, "failed to build accessor search tree");
4441 array->setter = fval;
4442 return ast_block_add_expr(func->blocks[0], root);
4444 if (entity) ast_delete(entity);
4445 if (index) ast_delete(index);
4446 if (value) ast_delete(value);
4447 if (root) ast_delete(root);
4453 static ast_value* parser_create_array_getter_proto(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
4455 ast_value *index = NULL;
4459 /* NOTE: checking array->expression.next rather than elemtype since
4460 * for fields elemtype is a temporary fieldtype.
4462 if (!ast_istype(array->expression.next, ast_value)) {
4463 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
4467 if (!parser_create_array_accessor(parser, array, funcname, &fval))
4469 func = fval->constval.vfunc;
4470 fval->expression.next = ast_type_copy(ast_ctx(array), elemtype);
4472 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
4475 parseerror(parser, "failed to create locals for array accessor");
4478 vec_push(fval->expression.params, index);
4480 array->getter = fval;
4483 if (index) ast_delete(index);
4489 static bool parser_create_array_getter_impl(parser_t *parser, ast_value *array)
4491 ast_expression *root = NULL;
4493 root = array_getter_node(parser, array, array->getter->expression.params[0], 0, array->expression.count);
4495 parseerror(parser, "failed to build accessor search tree");
4498 if (!ast_block_add_expr(array->getter->constval.vfunc->blocks[0], root)) {
4505 static bool parser_create_array_getter(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
4507 if (!parser_create_array_getter_proto(parser, array, elemtype, funcname))
4509 return parser_create_array_getter_impl(parser, array);
4512 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
4513 static ast_value *parse_parameter_list(parser_t *parser, ast_value *var)
4521 bool variadic = false;
4522 ast_value *varparam = NULL;
4523 char *argcounter = NULL;
4525 ctx = parser_ctx(parser);
4527 /* for the sake of less code we parse-in in this function */
4528 if (!parser_next(parser)) {
4529 parseerror(parser, "expected parameter list");
4535 /* parse variables until we hit a closing paren */
4536 while (parser->tok != ')') {
4538 /* there must be commas between them */
4539 if (parser->tok != ',') {
4540 parseerror(parser, "expected comma or end of parameter list");
4543 if (!parser_next(parser)) {
4544 parseerror(parser, "expected parameter");
4550 if (parser->tok == TOKEN_DOTS) {
4551 /* '...' indicates a varargs function */
4553 if (!parser_next(parser) || (parser->tok != ')' && parser->tok != TOKEN_IDENT)) {
4554 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4557 if (parser->tok == TOKEN_IDENT) {
4558 argcounter = util_strdup(parser_tokval(parser));
4559 if (!parser_next(parser) || parser->tok != ')') {
4560 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4567 /* for anything else just parse a typename */
4568 param = parse_typename(parser, NULL, NULL);
4571 vec_push(params, param);
4572 if (param->expression.vtype >= TYPE_VARIANT) {
4573 char tname[1024]; /* typename is reserved in C++ */
4574 ast_type_to_string((ast_expression*)param, tname, sizeof(tname));
4575 parseerror(parser, "type not supported as part of a parameter list: %s", tname);
4578 /* type-restricted varargs */
4579 if (parser->tok == TOKEN_DOTS) {
4581 varparam = vec_last(params);
4583 if (!parser_next(parser) || (parser->tok != ')' && parser->tok != TOKEN_IDENT)) {
4584 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4587 if (parser->tok == TOKEN_IDENT) {
4588 argcounter = util_strdup(parser_tokval(parser));
4589 if (!parser_next(parser) || parser->tok != ')') {
4590 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
4598 if (vec_size(params) == 1 && params[0]->expression.vtype == TYPE_VOID)
4602 if (vec_size(params) > 8 && opts.standard == COMPILER_QCC)
4603 (void)!parsewarning(parser, WARN_EXTENSIONS, "more than 8 parameters are not supported by this standard");
4606 if (!parser_next(parser)) {
4607 parseerror(parser, "parse error after typename");
4611 /* now turn 'var' into a function type */
4612 fval = ast_value_new(ctx, "<type()>", TYPE_FUNCTION);
4613 fval->expression.next = (ast_expression*)var;
4615 fval->expression.flags |= AST_FLAG_VARIADIC;
4618 var->expression.params = params;
4619 var->expression.varparam = (ast_expression*)varparam;
4620 var->argcounter = argcounter;
4629 for (i = 0; i < vec_size(params); ++i)
4630 ast_delete(params[i]);
4635 static ast_value *parse_arraysize(parser_t *parser, ast_value *var)
4637 ast_expression *cexp;
4638 ast_value *cval, *tmp;
4641 ctx = parser_ctx(parser);
4643 if (!parser_next(parser)) {
4645 parseerror(parser, "expected array-size");
4649 cexp = parse_expression_leave(parser, true, false, false);
4651 if (!cexp || !ast_istype(cexp, ast_value)) {
4655 parseerror(parser, "expected array-size as constant positive integer");
4658 cval = (ast_value*)cexp;
4660 tmp = ast_value_new(ctx, "<type[]>", TYPE_ARRAY);
4661 tmp->expression.next = (ast_expression*)var;
4664 if (cval->expression.vtype == TYPE_INTEGER)
4665 tmp->expression.count = cval->constval.vint;
4666 else if (cval->expression.vtype == TYPE_FLOAT)
4667 tmp->expression.count = cval->constval.vfloat;
4671 parseerror(parser, "array-size must be a positive integer constant");
4676 if (parser->tok != ']') {
4678 parseerror(parser, "expected ']' after array-size");
4681 if (!parser_next(parser)) {
4683 parseerror(parser, "error after parsing array size");
4689 /* Parse a complete typename.
4690 * for single-variables (ie. function parameters or typedefs) storebase should be NULL
4691 * but when parsing variables separated by comma
4692 * 'storebase' should point to where the base-type should be kept.
4693 * The base type makes up every bit of type information which comes *before* the
4696 * The following will be parsed in its entirety:
4698 * The 'basetype' in this case is 'void()'
4699 * and if there's a comma after it, say:
4701 * then the type-information 'void()' can be stored in 'storebase'
4703 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef)
4705 ast_value *var, *tmp;
4708 const char *name = NULL;
4709 bool isfield = false;
4710 bool wasarray = false;
4711 size_t morefields = 0;
4713 ctx = parser_ctx(parser);
4715 /* types may start with a dot */
4716 if (parser->tok == '.') {
4718 /* if we parsed a dot we need a typename now */
4719 if (!parser_next(parser)) {
4720 parseerror(parser, "expected typename for field definition");
4724 /* Further dots are handled seperately because they won't be part of the
4727 while (parser->tok == '.') {
4729 if (!parser_next(parser)) {
4730 parseerror(parser, "expected typename for field definition");
4735 if (parser->tok == TOKEN_IDENT)
4736 cached_typedef = parser_find_typedef(parser, parser_tokval(parser), 0);
4737 if (!cached_typedef && parser->tok != TOKEN_TYPENAME) {
4738 parseerror(parser, "expected typename");
4742 /* generate the basic type value */
4743 if (cached_typedef) {
4744 var = ast_value_copy(cached_typedef);
4745 ast_value_set_name(var, "<type(from_def)>");
4747 var = ast_value_new(ctx, "<type>", parser_token(parser)->constval.t);
4749 for (; morefields; --morefields) {
4750 tmp = ast_value_new(ctx, "<.type>", TYPE_FIELD);
4751 tmp->expression.next = (ast_expression*)var;
4755 /* do not yet turn into a field - remember:
4756 * .void() foo; is a field too
4757 * .void()() foo; is a function
4761 if (!parser_next(parser)) {
4763 parseerror(parser, "parse error after typename");
4767 /* an opening paren now starts the parameter-list of a function
4768 * this is where original-QC has parameter lists.
4769 * We allow a single parameter list here.
4770 * Much like fteqcc we don't allow `float()() x`
4772 if (parser->tok == '(') {
4773 var = parse_parameter_list(parser, var);
4778 /* store the base if requested */
4780 *storebase = ast_value_copy(var);
4782 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
4783 tmp->expression.next = (ast_expression*)*storebase;
4788 /* there may be a name now */
4789 if (parser->tok == TOKEN_IDENT) {
4790 name = util_strdup(parser_tokval(parser));
4792 if (!parser_next(parser)) {
4794 parseerror(parser, "error after variable or field declaration");
4799 /* now this may be an array */
4800 if (parser->tok == '[') {
4802 var = parse_arraysize(parser, var);
4807 /* This is the point where we can turn it into a field */
4809 /* turn it into a field if desired */
4810 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
4811 tmp->expression.next = (ast_expression*)var;
4815 /* now there may be function parens again */
4816 if (parser->tok == '(' && opts.standard == COMPILER_QCC)
4817 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4818 if (parser->tok == '(' && wasarray)
4819 parseerror(parser, "arrays as part of a return type is not supported");
4820 while (parser->tok == '(') {
4821 var = parse_parameter_list(parser, var);
4829 /* finally name it */
4831 if (!ast_value_set_name(var, name)) {
4833 parseerror(parser, "internal error: failed to set name");
4836 /* free the name, ast_value_set_name duplicates */
4843 static bool parse_typedef(parser_t *parser)
4845 ast_value *typevar, *oldtype;
4846 ast_expression *old;
4848 typevar = parse_typename(parser, NULL, NULL);
4853 if ( (old = parser_find_var(parser, typevar->name)) ) {
4854 parseerror(parser, "cannot define a type with the same name as a variable: %s\n"
4855 " -> `%s` has been declared here: %s:%i",
4856 typevar->name, ast_ctx(old).file, ast_ctx(old).line);
4857 ast_delete(typevar);
4861 if ( (oldtype = parser_find_typedef(parser, typevar->name, vec_last(parser->_blocktypedefs))) ) {
4862 parseerror(parser, "type `%s` has already been declared here: %s:%i",
4863 typevar->name, ast_ctx(oldtype).file, ast_ctx(oldtype).line);
4864 ast_delete(typevar);
4868 vec_push(parser->_typedefs, typevar);
4869 util_htset(vec_last(parser->typedefs), typevar->name, typevar);
4871 if (parser->tok != ';') {
4872 parseerror(parser, "expected semicolon after typedef");
4875 if (!parser_next(parser)) {
4876 parseerror(parser, "parse error after typedef");
4883 static const char *cvq_to_str(int cvq) {
4885 case CV_NONE: return "none";
4886 case CV_VAR: return "`var`";
4887 case CV_CONST: return "`const`";
4888 default: return "<INVALID>";
4892 static bool parser_check_qualifiers(parser_t *parser, const ast_value *var, const ast_value *proto)
4895 if (proto->cvq != var->cvq) {
4896 if (!(proto->cvq == CV_CONST && var->cvq == CV_NONE &&
4897 !OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
4898 parser->tok == '='))
4900 return !parsewarning(parser, WARN_DIFFERENT_QUALIFIERS,
4901 "`%s` declared with different qualifiers: %s\n"
4902 " -> previous declaration here: %s:%i uses %s",
4903 var->name, cvq_to_str(var->cvq),
4904 ast_ctx(proto).file, ast_ctx(proto).line,
4905 cvq_to_str(proto->cvq));
4908 av = (var ->expression.flags & AST_FLAG_NORETURN);
4909 ao = (proto->expression.flags & AST_FLAG_NORETURN);
4911 return !parsewarning(parser, WARN_DIFFERENT_ATTRIBUTES,
4912 "`%s` declared with different attributes%s\n"
4913 " -> previous declaration here: %s:%i",
4914 var->name, (av ? ": noreturn" : ""),
4915 ast_ctx(proto).file, ast_ctx(proto).line,
4916 (ao ? ": noreturn" : ""));
4921 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)
4925 ast_expression *old;
4929 ast_value *basetype = NULL;
4931 bool isparam = false;
4932 bool isvector = false;
4933 bool cleanvar = true;
4934 bool wasarray = false;
4938 if (!localblock && is_static)
4939 parseerror(parser, "`static` qualifier is not supported in global scope");
4941 /* get the first complete variable */
4942 var = parse_typename(parser, &basetype, cached_typedef);
4945 ast_delete(basetype);
4953 /* Part 0: finish the type */
4954 if (parser->tok == '(') {
4955 if (opts.standard == COMPILER_QCC)
4956 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4957 var = parse_parameter_list(parser, var);
4963 /* we only allow 1-dimensional arrays */
4964 if (parser->tok == '[') {
4966 var = parse_arraysize(parser, var);
4972 if (parser->tok == '(' && wasarray) {
4973 parseerror(parser, "arrays as part of a return type is not supported");
4974 /* we'll still parse the type completely for now */
4976 /* for functions returning functions */
4977 while (parser->tok == '(') {
4978 if (opts.standard == COMPILER_QCC)
4979 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4980 var = parse_parameter_list(parser, var);
4987 var->cvq = qualifier;
4988 var->expression.flags |= qflags;
4989 if (var->expression.flags & AST_FLAG_DEPRECATED)
4990 var->desc = vstring;
4993 * check for validity: (end_sys_..., multiple-definitions, prototypes, ...)
4994 * Also: if there was a prototype, `var` will be deleted and set to `proto` which
4995 * is then filled with the previous definition and the parameter-names replaced.
4997 if (!strcmp(var->name, "nil")) {
4998 if (OPTS_FLAG(UNTYPED_NIL)) {
4999 if (!localblock || !OPTS_FLAG(PERMISSIVE))
5000 parseerror(parser, "name `nil` not allowed (try -fpermissive)");
5002 (void)!parsewarning(parser, WARN_RESERVED_NAMES, "variable name `nil` is reserved");
5005 /* Deal with end_sys_ vars */
5007 if (!strcmp(var->name, "end_sys_globals")) {
5009 parser->crc_globals = vec_size(parser->globals);
5012 else if (!strcmp(var->name, "end_sys_fields")) {
5014 parser->crc_fields = vec_size(parser->fields);
5017 if (was_end && var->expression.vtype == TYPE_FIELD) {
5018 if (parsewarning(parser, WARN_END_SYS_FIELDS,
5019 "global '%s' hint should not be a field",
5020 parser_tokval(parser)))
5027 if (!nofields && var->expression.vtype == TYPE_FIELD)
5029 /* deal with field declarations */
5030 old = parser_find_field(parser, var->name);
5032 if (parsewarning(parser, WARN_FIELD_REDECLARED, "field `%s` already declared here: %s:%i",
5033 var->name, ast_ctx(old).file, (int)ast_ctx(old).line))
5042 parseerror(parser, "field `%s` already declared here: %s:%i",
5043 var->name, ast_ctx(old).file, ast_ctx(old).line);
5048 if ((opts.standard == COMPILER_QCC || opts.standard == COMPILER_FTEQCC) &&
5049 (old = parser_find_global(parser, var->name)))
5051 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
5052 parseerror(parser, "field `%s` already declared here: %s:%i",
5053 var->name, ast_ctx(old).file, ast_ctx(old).line);
5060 /* deal with other globals */
5061 old = parser_find_global(parser, var->name);
5062 if (old && var->expression.vtype == TYPE_FUNCTION && old->expression.vtype == TYPE_FUNCTION)
5064 /* This is a function which had a prototype */
5065 if (!ast_istype(old, ast_value)) {
5066 parseerror(parser, "internal error: prototype is not an ast_value");
5070 proto = (ast_value*)old;
5071 proto->desc = var->desc;
5072 if (!ast_compare_type((ast_expression*)proto, (ast_expression*)var)) {
5073 parseerror(parser, "conflicting types for `%s`, previous declaration was here: %s:%i",
5075 ast_ctx(proto).file, ast_ctx(proto).line);
5079 /* we need the new parameter-names */
5080 for (i = 0; i < vec_size(proto->expression.params); ++i)
5081 ast_value_set_name(proto->expression.params[i], var->expression.params[i]->name);
5082 if (!parser_check_qualifiers(parser, var, proto)) {
5089 proto->expression.flags |= var->expression.flags;
5097 if (parsewarning(parser, WARN_DOUBLE_DECLARATION,
5098 "global `%s` already declared here: %s:%i",
5099 var->name, ast_ctx(old).file, ast_ctx(old).line))
5104 proto = (ast_value*)old;
5105 if (!ast_istype(old, ast_value)) {
5106 parseerror(parser, "internal error: not an ast_value");
5111 if (!parser_check_qualifiers(parser, var, proto)) {
5116 proto->expression.flags |= var->expression.flags;
5120 if (opts.standard == COMPILER_QCC &&
5121 (old = parser_find_field(parser, var->name)))
5123 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
5124 parseerror(parser, "global `%s` already declared here: %s:%i",
5125 var->name, ast_ctx(old).file, ast_ctx(old).line);
5132 else /* it's not a global */
5134 old = parser_find_local(parser, var->name, vec_size(parser->variables)-1, &isparam);
5135 if (old && !isparam) {
5136 parseerror(parser, "local `%s` already declared here: %s:%i",
5137 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
5141 old = parser_find_local(parser, var->name, 0, &isparam);
5142 if (old && isparam) {
5143 if (parsewarning(parser, WARN_LOCAL_SHADOWS,
5144 "local `%s` is shadowing a parameter", var->name))
5146 parseerror(parser, "local `%s` already declared here: %s:%i",
5147 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
5151 if (opts.standard != COMPILER_GMQCC) {
5159 /* in a noref section we simply bump the usecount */
5160 if (noref || parser->noref)
5164 * Create the global/local, and deal with vector types.
5167 if (var->expression.vtype == TYPE_VECTOR)
5169 else if (var->expression.vtype == TYPE_FIELD &&
5170 var->expression.next->expression.vtype == TYPE_VECTOR)
5174 if (!create_vector_members(var, me)) {
5181 /* deal with global variables, fields, functions */
5182 if (!nofields && var->expression.vtype == TYPE_FIELD && parser->tok != '=') {
5183 var->isfield = true;
5184 vec_push(parser->fields, (ast_expression*)var);
5185 util_htset(parser->htfields, var->name, var);
5187 for (i = 0; i < 3; ++i) {
5188 vec_push(parser->fields, (ast_expression*)me[i]);
5189 util_htset(parser->htfields, me[i]->name, me[i]);
5194 parser_addglobal(parser, var->name, (ast_expression*)var);
5196 for (i = 0; i < 3; ++i) {
5197 parser_addglobal(parser, me[i]->name, (ast_expression*)me[i]);
5203 /* a static adds itself to be generated like any other global
5204 * but is added to the local namespace instead
5206 char *defname = NULL;
5207 size_t prefix_len, ln;
5209 ln = strlen(parser->function->name);
5210 vec_append(defname, ln, parser->function->name);
5212 vec_append(defname, 2, "::");
5213 /* remember the length up to here */
5214 prefix_len = vec_size(defname);
5216 /* Add it to the local scope */
5217 util_htset(vec_last(parser->variables), var->name, (void*)var);
5221 vec_last(parser->correct_variables),
5222 &vec_last(parser->correct_variables_score),
5226 /* now rename the global */
5227 ln = strlen(var->name);
5228 vec_append(defname, ln, var->name);
5229 ast_value_set_name(var, defname);
5231 /* push it to the to-be-generated globals */
5232 vec_push(parser->globals, (ast_expression*)var);
5234 /* same game for the vector members */
5236 for (i = 0; i < 3; ++i) {
5237 util_htset(vec_last(parser->variables), me[i]->name, (void*)(me[i]));
5241 vec_last(parser->correct_variables),
5242 &vec_last(parser->correct_variables_score),
5246 vec_shrinkto(defname, prefix_len);
5247 ln = strlen(me[i]->name);
5248 vec_append(defname, ln, me[i]->name);
5249 ast_member_set_name(me[i], defname);
5251 vec_push(parser->globals, (ast_expression*)me[i]);
5256 vec_push(localblock->locals, var);
5257 parser_addlocal(parser, var->name, (ast_expression*)var);
5259 for (i = 0; i < 3; ++i) {
5260 parser_addlocal(parser, me[i]->name, (ast_expression*)me[i]);
5261 ast_block_collect(localblock, (ast_expression*)me[i]);
5267 me[0] = me[1] = me[2] = NULL;
5272 if (var->expression.vtype == TYPE_ARRAY) {
5274 snprintf(name, sizeof(name), "%s##SET", var->name);
5275 if (!parser_create_array_setter(parser, var, name))
5277 snprintf(name, sizeof(name), "%s##GET", var->name);
5278 if (!parser_create_array_getter(parser, var, var->expression.next, name))
5281 else if (!localblock && !nofields &&
5282 var->expression.vtype == TYPE_FIELD &&
5283 var->expression.next->expression.vtype == TYPE_ARRAY)
5286 ast_expression *telem;
5288 ast_value *array = (ast_value*)var->expression.next;
5290 if (!ast_istype(var->expression.next, ast_value)) {
5291 parseerror(parser, "internal error: field element type must be an ast_value");
5295 snprintf(name, sizeof(name), "%s##SETF", var->name);
5296 if (!parser_create_array_field_setter(parser, array, name))
5299 telem = ast_type_copy(ast_ctx(var), array->expression.next);
5300 tfield = ast_value_new(ast_ctx(var), "<.type>", TYPE_FIELD);
5301 tfield->expression.next = telem;
5302 snprintf(name, sizeof(name), "%s##GETFP", var->name);
5303 if (!parser_create_array_getter(parser, array, (ast_expression*)tfield, name)) {
5311 if (parser->tok == ';') {
5312 ast_delete(basetype);
5313 if (!parser_next(parser)) {
5314 parseerror(parser, "error after variable declaration");
5320 if (parser->tok == ',')
5324 if (!var || (!localblock && !nofields && basetype->expression.vtype == TYPE_FIELD)) {
5327 parseerror(parser, "missing comma or semicolon while parsing variables");
5331 if (localblock && opts.standard == COMPILER_QCC) {
5332 if (parsewarning(parser, WARN_LOCAL_CONSTANTS,
5333 "initializing expression turns variable `%s` into a constant in this standard",
5340 if (parser->tok != '{') {
5341 if (parser->tok != '=') {
5342 parseerror(parser, "missing semicolon or initializer, got: `%s`", parser_tokval(parser));
5346 if (!parser_next(parser)) {
5347 parseerror(parser, "error parsing initializer");
5351 else if (opts.standard == COMPILER_QCC) {
5352 parseerror(parser, "expected '=' before function body in this standard");
5355 if (parser->tok == '#') {
5356 ast_function *func = NULL;
5359 parseerror(parser, "cannot declare builtins within functions");
5362 if (var->expression.vtype != TYPE_FUNCTION) {
5363 parseerror(parser, "unexpected builtin number, '%s' is not a function", var->name);
5366 if (!parser_next(parser)) {
5367 parseerror(parser, "expected builtin number");
5370 if (parser->tok != TOKEN_INTCONST) {
5371 parseerror(parser, "builtin number must be an integer constant");
5374 if (parser_token(parser)->constval.i < 0) {
5375 parseerror(parser, "builtin number must be an integer greater than zero");
5379 if (var->hasvalue) {
5380 (void)!parsewarning(parser, WARN_DOUBLE_DECLARATION,
5381 "builtin `%s` has already been defined\n"
5382 " -> previous declaration here: %s:%i",
5383 var->name, ast_ctx(var).file, (int)ast_ctx(var).line);
5387 func = ast_function_new(ast_ctx(var), var->name, var);
5389 parseerror(parser, "failed to allocate function for `%s`", var->name);
5392 vec_push(parser->functions, func);
5394 func->builtin = -parser_token(parser)->constval.i-1;
5397 if (!parser_next(parser)) {
5398 parseerror(parser, "expected comma or semicolon");
5400 ast_function_delete(func);
5401 var->constval.vfunc = NULL;
5405 else if (parser->tok == '{' || parser->tok == '[')
5408 parseerror(parser, "cannot declare functions within functions");
5413 ast_ctx(proto) = parser_ctx(parser);
5415 if (!parse_function_body(parser, var))
5417 ast_delete(basetype);
5418 for (i = 0; i < vec_size(parser->gotos); ++i)
5419 parseerror(parser, "undefined label: `%s`", parser->gotos[i]->name);
5420 vec_free(parser->gotos);
5421 vec_free(parser->labels);
5424 ast_expression *cexp;
5427 cexp = parse_expression_leave(parser, true, false, false);
5432 cval = (ast_value*)cexp;
5433 if (cval != parser->nil &&
5434 (!ast_istype(cval, ast_value) || ((!cval->hasvalue || cval->cvq != CV_CONST) && !cval->isfield))
5437 parseerror(parser, "cannot initialize a global constant variable with a non-constant expression");
5441 if (!OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
5442 qualifier != CV_VAR)
5444 var->cvq = CV_CONST;
5446 if (cval == parser->nil)
5447 var->expression.flags |= AST_FLAG_INITIALIZED;
5450 var->hasvalue = true;
5451 if (cval->expression.vtype == TYPE_STRING)
5452 var->constval.vstring = parser_strdup(cval->constval.vstring);
5453 else if (cval->expression.vtype == TYPE_FIELD)
5454 var->constval.vfield = cval;
5456 memcpy(&var->constval, &cval->constval, sizeof(var->constval));
5462 shunt sy = { NULL, NULL };
5465 vec_push(sy.out, syexp(ast_ctx(var), (ast_expression*)var));
5466 vec_push(sy.out, syexp(ast_ctx(cexp), (ast_expression*)cexp));
5467 vec_push(sy.ops, syop(ast_ctx(var), parser->assign_op));
5468 if (!parser_sy_apply_operator(parser, &sy))
5471 if (vec_size(sy.out) != 1 && vec_size(sy.ops) != 0)
5472 parseerror(parser, "internal error: leaked operands");
5473 if (!ast_block_add_expr(localblock, (ast_expression*)sy.out[0].out))
5483 if (parser->tok == ',') {
5484 if (!parser_next(parser)) {
5485 parseerror(parser, "expected another variable");
5489 if (parser->tok != TOKEN_IDENT) {
5490 parseerror(parser, "expected another variable");
5493 var = ast_value_copy(basetype);
5495 ast_value_set_name(var, parser_tokval(parser));
5496 if (!parser_next(parser)) {
5497 parseerror(parser, "error parsing variable declaration");
5503 if (parser->tok != ';') {
5504 parseerror(parser, "missing semicolon after variables");
5508 if (!parser_next(parser)) {
5509 parseerror(parser, "parse error after variable declaration");
5513 ast_delete(basetype);
5517 if (cleanvar && var)
5519 ast_delete(basetype);
5523 ast_delete(basetype);
5524 if (cleanvar && var)
5526 if (me[0]) ast_member_delete(me[0]);
5527 if (me[1]) ast_member_delete(me[1]);
5528 if (me[2]) ast_member_delete(me[2]);
5532 static bool parser_global_statement(parser_t *parser)
5536 bool is_static = false;
5537 uint32_t qflags = 0;
5538 ast_value *istype = NULL;
5539 char *vstring = NULL;
5541 if (parser->tok == TOKEN_IDENT)
5542 istype = parser_find_typedef(parser, parser_tokval(parser), 0);
5544 if (istype || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
5546 return parse_variable(parser, NULL, false, CV_NONE, istype, false, false, 0, NULL);
5548 else if (parse_qualifiers(parser, false, &cvq, &noref, &is_static, &qflags, &vstring))
5550 if (cvq == CV_WRONG)
5552 return parse_variable(parser, NULL, true, cvq, NULL, noref, is_static, qflags, vstring);
5554 else if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "enum"))
5556 return parse_enum(parser);
5558 else if (parser->tok == TOKEN_KEYWORD)
5560 if (!strcmp(parser_tokval(parser), "typedef")) {
5561 if (!parser_next(parser)) {
5562 parseerror(parser, "expected type definition after 'typedef'");
5565 return parse_typedef(parser);
5567 parseerror(parser, "unrecognized keyword `%s`", parser_tokval(parser));
5570 else if (parser->tok == '#')
5572 return parse_pragma(parser);
5574 else if (parser->tok == '$')
5576 if (!parser_next(parser)) {
5577 parseerror(parser, "parse error");
5583 parseerror(parser, "unexpected token: %s", parser->lex->tok.value);
5589 static uint16_t progdefs_crc_sum(uint16_t old, const char *str)
5591 return util_crc16(old, str, strlen(str));
5594 static void progdefs_crc_file(const char *str)
5596 /* write to progdefs.h here */
5600 static uint16_t progdefs_crc_both(uint16_t old, const char *str)
5602 old = progdefs_crc_sum(old, str);
5603 progdefs_crc_file(str);
5607 static void generate_checksum(parser_t *parser)
5609 uint16_t crc = 0xFFFF;
5613 crc = progdefs_crc_both(crc, "\n/* file generated by qcc, do not modify */\n\ntypedef struct\n{");
5614 crc = progdefs_crc_sum(crc, "\tint\tpad[28];\n");
5616 progdefs_crc_file("\tint\tpad;\n");
5617 progdefs_crc_file("\tint\tofs_return[3];\n");
5618 progdefs_crc_file("\tint\tofs_parm0[3];\n");
5619 progdefs_crc_file("\tint\tofs_parm1[3];\n");
5620 progdefs_crc_file("\tint\tofs_parm2[3];\n");
5621 progdefs_crc_file("\tint\tofs_parm3[3];\n");
5622 progdefs_crc_file("\tint\tofs_parm4[3];\n");
5623 progdefs_crc_file("\tint\tofs_parm5[3];\n");
5624 progdefs_crc_file("\tint\tofs_parm6[3];\n");
5625 progdefs_crc_file("\tint\tofs_parm7[3];\n");
5627 for (i = 0; i < parser->crc_globals; ++i) {
5628 if (!ast_istype(parser->globals[i], ast_value))
5630 value = (ast_value*)(parser->globals[i]);
5631 switch (value->expression.vtype) {
5632 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
5633 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
5634 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
5635 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
5637 crc = progdefs_crc_both(crc, "\tint\t");
5640 crc = progdefs_crc_both(crc, value->name);
5641 crc = progdefs_crc_both(crc, ";\n");
5643 crc = progdefs_crc_both(crc, "} globalvars_t;\n\ntypedef struct\n{\n");
5644 for (i = 0; i < parser->crc_fields; ++i) {
5645 if (!ast_istype(parser->fields[i], ast_value))
5647 value = (ast_value*)(parser->fields[i]);
5648 switch (value->expression.next->expression.vtype) {
5649 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
5650 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
5651 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
5652 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
5654 crc = progdefs_crc_both(crc, "\tint\t");
5657 crc = progdefs_crc_both(crc, value->name);
5658 crc = progdefs_crc_both(crc, ";\n");
5660 crc = progdefs_crc_both(crc, "} entvars_t;\n\n");
5665 static parser_t *parser;
5672 parser = (parser_t*)mem_a(sizeof(parser_t));
5676 memset(parser, 0, sizeof(*parser));
5678 for (i = 0; i < operator_count; ++i) {
5679 if (operators[i].id == opid1('=')) {
5680 parser->assign_op = operators+i;
5684 if (!parser->assign_op) {
5685 printf("internal error: initializing parser: failed to find assign operator\n");
5690 vec_push(parser->variables, parser->htfields = util_htnew(PARSER_HT_SIZE));
5691 vec_push(parser->variables, parser->htglobals = util_htnew(PARSER_HT_SIZE));
5692 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
5693 vec_push(parser->_blocktypedefs, 0);
5696 vec_push(parser->correct_variables, correct_trie_new());
5697 vec_push(parser->correct_variables_score, NULL);
5699 empty_ctx.file = "<internal>";
5701 parser->nil = ast_value_new(empty_ctx, "nil", TYPE_NIL);
5702 parser->nil->cvq = CV_CONST;
5703 if (OPTS_FLAG(UNTYPED_NIL))
5704 util_htset(parser->htglobals, "nil", (void*)parser->nil);
5706 parser->const_vec[0] = ast_value_new(empty_ctx, "<vector.x>", TYPE_NOEXPR);
5707 parser->const_vec[1] = ast_value_new(empty_ctx, "<vector.y>", TYPE_NOEXPR);
5708 parser->const_vec[2] = ast_value_new(empty_ctx, "<vector.z>", TYPE_NOEXPR);
5710 if (opts.add_info) {
5711 parser->reserved_version = ast_value_new(empty_ctx, "reserved:version", TYPE_STRING);
5712 parser->reserved_version->cvq = CV_CONST;
5713 parser->reserved_version->hasvalue = true;
5714 parser->reserved_version->expression.flags |= AST_FLAG_INCLUDE_DEF;
5715 parser->reserved_version->constval.vstring = util_strdup(GMQCC_FULL_VERSION_STRING);
5717 parser->reserved_version = NULL;
5722 bool parser_compile()
5724 /* initial lexer/parser state */
5725 parser->lex->flags.noops = true;
5727 if (parser_next(parser))
5729 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
5731 if (!parser_global_statement(parser)) {
5732 if (parser->tok == TOKEN_EOF)
5733 parseerror(parser, "unexpected eof");
5734 else if (compile_errors)
5735 parseerror(parser, "there have been errors, bailing out");
5736 lex_close(parser->lex);
5742 parseerror(parser, "parse error");
5743 lex_close(parser->lex);
5748 lex_close(parser->lex);
5751 return !compile_errors;
5754 bool parser_compile_file(const char *filename)
5756 parser->lex = lex_open(filename);
5758 con_err("failed to open file \"%s\"\n", filename);
5761 return parser_compile();
5764 bool parser_compile_string(const char *name, const char *str, size_t len)
5766 parser->lex = lex_open_string(str, len, name);
5768 con_err("failed to create lexer for string \"%s\"\n", name);
5771 return parser_compile();
5774 void parser_cleanup()
5777 for (i = 0; i < vec_size(parser->accessors); ++i) {
5778 ast_delete(parser->accessors[i]->constval.vfunc);
5779 parser->accessors[i]->constval.vfunc = NULL;
5780 ast_delete(parser->accessors[i]);
5782 for (i = 0; i < vec_size(parser->functions); ++i) {
5783 ast_delete(parser->functions[i]);
5785 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
5786 ast_delete(parser->imm_vector[i]);
5788 for (i = 0; i < vec_size(parser->imm_string); ++i) {
5789 ast_delete(parser->imm_string[i]);
5791 for (i = 0; i < vec_size(parser->imm_float); ++i) {
5792 ast_delete(parser->imm_float[i]);
5794 for (i = 0; i < vec_size(parser->fields); ++i) {
5795 ast_delete(parser->fields[i]);
5797 for (i = 0; i < vec_size(parser->globals); ++i) {
5798 ast_delete(parser->globals[i]);
5800 vec_free(parser->accessors);
5801 vec_free(parser->functions);
5802 vec_free(parser->imm_vector);
5803 vec_free(parser->imm_string);
5804 vec_free(parser->imm_float);
5805 vec_free(parser->globals);
5806 vec_free(parser->fields);
5808 for (i = 0; i < vec_size(parser->variables); ++i)
5809 util_htdel(parser->variables[i]);
5810 vec_free(parser->variables);
5811 vec_free(parser->_blocklocals);
5812 vec_free(parser->_locals);
5815 for (i = 0; i < vec_size(parser->correct_variables); ++i) {
5816 correct_del(parser->correct_variables[i], parser->correct_variables_score[i]);
5818 vec_free(parser->correct_variables);
5819 vec_free(parser->correct_variables_score);
5822 for (i = 0; i < vec_size(parser->_typedefs); ++i)
5823 ast_delete(parser->_typedefs[i]);
5824 vec_free(parser->_typedefs);
5825 for (i = 0; i < vec_size(parser->typedefs); ++i)
5826 util_htdel(parser->typedefs[i]);
5827 vec_free(parser->typedefs);
5828 vec_free(parser->_blocktypedefs);
5830 vec_free(parser->_block_ctx);
5832 vec_free(parser->labels);
5833 vec_free(parser->gotos);
5834 vec_free(parser->breaks);
5835 vec_free(parser->continues);
5837 ast_value_delete(parser->nil);
5839 ast_value_delete(parser->const_vec[0]);
5840 ast_value_delete(parser->const_vec[1]);
5841 ast_value_delete(parser->const_vec[2]);
5846 bool parser_finish(const char *output)
5852 if (compile_errors) {
5853 con_out("*** there were compile errors\n");
5857 ir = ir_builder_new("gmqcc_out");
5859 con_out("failed to allocate builder\n");
5863 for (i = 0; i < vec_size(parser->fields); ++i) {
5866 if (!ast_istype(parser->fields[i], ast_value))
5868 field = (ast_value*)parser->fields[i];
5869 hasvalue = field->hasvalue;
5870 field->hasvalue = false;
5871 if (!ast_global_codegen((ast_value*)field, ir, true)) {
5872 con_out("failed to generate field %s\n", field->name);
5873 ir_builder_delete(ir);
5878 ast_expression *subtype;
5879 field->hasvalue = true;
5880 subtype = field->expression.next;
5881 ifld = ir_builder_create_field(ir, field->name, subtype->expression.vtype);
5882 if (subtype->expression.vtype == TYPE_FIELD)
5883 ifld->fieldtype = subtype->expression.next->expression.vtype;
5884 else if (subtype->expression.vtype == TYPE_FUNCTION)
5885 ifld->outtype = subtype->expression.next->expression.vtype;
5886 (void)!ir_value_set_field(field->ir_v, ifld);
5889 for (i = 0; i < vec_size(parser->globals); ++i) {
5891 if (!ast_istype(parser->globals[i], ast_value))
5893 asvalue = (ast_value*)(parser->globals[i]);
5894 if (!asvalue->uses && !asvalue->hasvalue && asvalue->expression.vtype != TYPE_FUNCTION) {
5895 retval = retval && !genwarning(ast_ctx(asvalue), WARN_UNUSED_VARIABLE,
5896 "unused global: `%s`", asvalue->name);
5898 if (!ast_global_codegen(asvalue, ir, false)) {
5899 con_out("failed to generate global %s\n", asvalue->name);
5900 ir_builder_delete(ir);
5904 /* Build function vararg accessor ast tree now before generating
5905 * immediates, because the accessors may add new immediates
5907 for (i = 0; i < vec_size(parser->functions); ++i) {
5908 ast_function *f = parser->functions[i];
5910 if (parser->max_param_count > vec_size(f->vtype->expression.params)) {
5911 f->varargs->expression.count = parser->max_param_count - vec_size(f->vtype->expression.params);
5912 if (!parser_create_array_setter_impl(parser, f->varargs)) {
5913 con_out("failed to generate vararg setter for %s\n", f->name);
5914 ir_builder_delete(ir);
5917 if (!parser_create_array_getter_impl(parser, f->varargs)) {
5918 con_out("failed to generate vararg getter for %s\n", f->name);
5919 ir_builder_delete(ir);
5923 ast_delete(f->varargs);
5928 /* Now we can generate immediates */
5929 for (i = 0; i < vec_size(parser->imm_float); ++i) {
5930 if (!ast_global_codegen(parser->imm_float[i], ir, false)) {
5931 con_out("failed to generate global %s\n", parser->imm_float[i]->name);
5932 ir_builder_delete(ir);
5936 for (i = 0; i < vec_size(parser->imm_string); ++i) {
5937 if (!ast_global_codegen(parser->imm_string[i], ir, false)) {
5938 con_out("failed to generate global %s\n", parser->imm_string[i]->name);
5939 ir_builder_delete(ir);
5943 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
5944 if (!ast_global_codegen(parser->imm_vector[i], ir, false)) {
5945 con_out("failed to generate global %s\n", parser->imm_vector[i]->name);
5946 ir_builder_delete(ir);
5950 for (i = 0; i < vec_size(parser->globals); ++i) {
5952 if (!ast_istype(parser->globals[i], ast_value))
5954 asvalue = (ast_value*)(parser->globals[i]);
5955 if (!(asvalue->expression.flags & AST_FLAG_INITIALIZED))
5957 if (asvalue->cvq == CV_CONST && !asvalue->hasvalue)
5958 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_CONSTANT,
5959 "uninitialized constant: `%s`",
5961 else if ((asvalue->cvq == CV_NONE || asvalue->cvq == CV_CONST) && !asvalue->hasvalue)
5962 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_GLOBAL,
5963 "uninitialized global: `%s`",
5966 if (!ast_generate_accessors(asvalue, ir)) {
5967 ir_builder_delete(ir);
5971 for (i = 0; i < vec_size(parser->fields); ++i) {
5973 asvalue = (ast_value*)(parser->fields[i]->expression.next);
5975 if (!ast_istype((ast_expression*)asvalue, ast_value))
5977 if (asvalue->expression.vtype != TYPE_ARRAY)
5979 if (!ast_generate_accessors(asvalue, ir)) {
5980 ir_builder_delete(ir);
5984 if (parser->reserved_version &&
5985 !ast_global_codegen(parser->reserved_version, ir, false))
5987 con_out("failed to generate reserved::version");
5988 ir_builder_delete(ir);
5991 for (i = 0; i < vec_size(parser->functions); ++i) {
5992 ast_function *f = parser->functions[i];
5993 if (!ast_function_codegen(f, ir)) {
5994 con_out("failed to generate function %s\n", f->name);
5995 ir_builder_delete(ir);
6000 ir_builder_dump(ir, con_out);
6001 for (i = 0; i < vec_size(parser->functions); ++i) {
6002 if (!ir_function_finalize(parser->functions[i]->ir_func)) {
6003 con_out("failed to finalize function %s\n", parser->functions[i]->name);
6004 ir_builder_delete(ir);
6009 if (compile_Werrors) {
6010 con_out("*** there were warnings treated as errors\n");
6011 compile_show_werrors();
6017 ir_builder_dump(ir, con_out);
6019 generate_checksum(parser);
6021 if (!ir_builder_generate(ir, output)) {
6022 con_out("*** failed to generate output file\n");
6023 ir_builder_delete(ir);
6028 ir_builder_delete(ir);