5 * Permission is hereby granted, free of charge, to any person obtaining a copy of
6 * this software and associated documentation files (the "Software"), to deal in
7 * the Software without restriction, including without limitation the rights to
8 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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12 * The above copyright notice and this permission notice shall be included in all
13 * copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
29 /* beginning of locals */
30 #define PARSER_HT_LOCALS 2
32 #define PARSER_HT_SIZE 1024
33 #define TYPEDEF_HT_SIZE 16
35 enum parser_pot { POT_PAREN, POT_TERNARY1, POT_TERNARY2 };
40 ast_expression **globals;
41 ast_expression **fields;
42 ast_function **functions;
43 ast_value **imm_float;
44 ast_value **imm_string;
45 ast_value **imm_vector;
48 /* must be deleted first, they reference immediates and values */
49 ast_value **accessors;
51 ast_value *imm_float_zero;
52 ast_value *imm_float_one;
53 ast_value *imm_vector_zero;
59 ast_function *function;
61 /* All the labels the function defined...
62 * Should they be in ast_function instead?
67 const char **continues;
69 /* A list of hashtables for each scope */
75 /* not to be used directly, we use the hash table */
76 ast_expression **_locals;
78 ast_value **_typedefs;
79 size_t *_blocktypedefs;
82 /* we store the '=' operator info */
83 const oper_info *assign_op;
85 /* TYPE_FIELD -> parser_find_fields is used instead of find_var
86 * TODO: TYPE_VECTOR -> x, y and z are accepted in the gmqcc standard
87 * anything else: type error
91 /* Keep track of our ternary vs parenthesis nesting state.
92 * If we reach a 'comma' operator in a ternary without a paren,
93 * we shall trigger -Wternary-precedence.
101 static const ast_expression *intrinsic_debug_typestring = (ast_expression*)0x10;
103 static void parser_enterblock(parser_t *parser);
104 static bool parser_leaveblock(parser_t *parser);
105 static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e);
106 static bool parse_typedef(parser_t *parser);
107 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);
108 static ast_block* parse_block(parser_t *parser);
109 static bool parse_block_into(parser_t *parser, ast_block *block);
110 static bool parse_statement_or_block(parser_t *parser, ast_expression **out);
111 static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases);
112 static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma);
113 static ast_expression* parse_expression(parser_t *parser, bool stopatcomma);
115 static void parseerror(parser_t *parser, const char *fmt, ...)
119 vcompile_error(parser->lex->tok.ctx, fmt, ap);
123 /* returns true if it counts as an error */
124 static bool GMQCC_WARN parsewarning(parser_t *parser, int warntype, const char *fmt, ...)
129 r = vcompile_warning(parser->lex->tok.ctx, warntype, fmt, ap);
134 static bool GMQCC_WARN genwarning(lex_ctx ctx, int warntype, const char *fmt, ...)
139 r = vcompile_warning(ctx, warntype, fmt, ap);
144 /**********************************************************************
145 * some maths used for constant folding
148 vector vec3_add(vector a, vector b)
157 vector vec3_sub(vector a, vector b)
166 qcfloat vec3_mulvv(vector a, vector b)
168 return (a.x * b.x + a.y * b.y + a.z * b.z);
171 vector vec3_mulvf(vector a, float b)
180 /**********************************************************************
184 bool parser_next(parser_t *parser)
186 /* lex_do kills the previous token */
187 parser->tok = lex_do(parser->lex);
188 if (parser->tok == TOKEN_EOF)
190 if (parser->tok >= TOKEN_ERROR) {
191 parseerror(parser, "lex error");
197 #define parser_tokval(p) ((p)->lex->tok.value)
198 #define parser_token(p) (&((p)->lex->tok))
199 #define parser_ctx(p) ((p)->lex->tok.ctx)
201 static ast_value* parser_const_float(parser_t *parser, double d)
205 for (i = 0; i < vec_size(parser->imm_float); ++i) {
206 const double compare = parser->imm_float[i]->constval.vfloat;
207 if (memcmp((const void*)&compare, (const void *)&d, sizeof(double)) == 0)
208 return parser->imm_float[i];
210 out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_FLOAT);
212 out->hasvalue = true;
213 out->constval.vfloat = d;
214 vec_push(parser->imm_float, out);
218 static ast_value* parser_const_float_0(parser_t *parser)
220 if (!parser->imm_float_zero)
221 parser->imm_float_zero = parser_const_float(parser, 0);
222 return parser->imm_float_zero;
225 static ast_value* parser_const_float_1(parser_t *parser)
227 if (!parser->imm_float_one)
228 parser->imm_float_one = parser_const_float(parser, 1);
229 return parser->imm_float_one;
232 static char *parser_strdup(const char *str)
235 /* actually dup empty strings */
236 char *out = (char*)mem_a(1);
240 return util_strdup(str);
243 static ast_value* parser_const_string(parser_t *parser, const char *str, bool dotranslate)
247 for (i = 0; i < vec_size(parser->imm_string); ++i) {
248 if (!strcmp(parser->imm_string[i]->constval.vstring, str))
249 return parser->imm_string[i];
253 snprintf(name, sizeof(name), "dotranslate_%lu", (unsigned long)(parser->translated++));
254 out = ast_value_new(parser_ctx(parser), name, TYPE_STRING);
256 out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_STRING);
258 out->hasvalue = true;
259 out->constval.vstring = parser_strdup(str);
260 vec_push(parser->imm_string, out);
264 static ast_value* parser_const_vector(parser_t *parser, vector v)
268 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
269 if (!memcmp(&parser->imm_vector[i]->constval.vvec, &v, sizeof(v)))
270 return parser->imm_vector[i];
272 out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_VECTOR);
274 out->hasvalue = true;
275 out->constval.vvec = v;
276 vec_push(parser->imm_vector, out);
280 static ast_value* parser_const_vector_f(parser_t *parser, float x, float y, float z)
286 return parser_const_vector(parser, v);
289 static ast_value* parser_const_vector_0(parser_t *parser)
291 if (!parser->imm_vector_zero)
292 parser->imm_vector_zero = parser_const_vector_f(parser, 0, 0, 0);
293 return parser->imm_vector_zero;
296 static ast_expression* parser_find_field(parser_t *parser, const char *name)
298 return ( ast_expression*)util_htget(parser->htfields, name);
301 static ast_expression* parser_find_global(parser_t *parser, const char *name)
303 return (ast_expression*)util_htget(parser->htglobals, name);
306 static ast_expression* parser_find_param(parser_t *parser, const char *name)
310 if (!parser->function)
312 fun = parser->function->vtype;
313 for (i = 0; i < vec_size(fun->expression.params); ++i) {
314 if (!strcmp(fun->expression.params[i]->name, name))
315 return (ast_expression*)(fun->expression.params[i]);
320 static ast_expression* parser_find_local(parser_t *parser, const char *name, size_t upto, bool *isparam)
325 hash = util_hthash(parser->htglobals, name);
328 for (i = vec_size(parser->variables); i > upto;) {
330 if ( (e = (ast_expression*)util_htgeth(parser->variables[i], name, hash)) )
334 return parser_find_param(parser, name);
337 static ast_expression* parser_find_var(parser_t *parser, const char *name)
341 v = parser_find_local(parser, name, 0, &dummy);
342 if (!v) v = parser_find_global(parser, name);
346 static ast_value* parser_find_typedef(parser_t *parser, const char *name, size_t upto)
350 hash = util_hthash(parser->typedefs[0], name);
352 for (i = vec_size(parser->typedefs); i > upto;) {
354 if ( (e = (ast_value*)util_htgeth(parser->typedefs[i], name, hash)) )
362 size_t etype; /* 0 = expression, others are operators */
366 ast_block *block; /* for commas and function calls */
375 #define SY_PAREN_EXPR '('
376 #define SY_PAREN_FUNC 'f'
377 #define SY_PAREN_INDEX '['
378 #define SY_PAREN_TERNARY '?'
380 static sy_elem syexp(lex_ctx ctx, ast_expression *v) {
391 static sy_elem syblock(lex_ctx ctx, ast_block *v) {
395 e.out = (ast_expression*)v;
402 static sy_elem syop(lex_ctx ctx, const oper_info *op) {
404 e.etype = 1 + (op - operators);
413 static sy_elem syparen(lex_ctx ctx, int p, size_t off) {
425 # define DEBUGSHUNTDO(x) x
427 # define DEBUGSHUNTDO(x)
430 /* With regular precedence rules, ent.foo[n] is the same as (ent.foo)[n],
431 * so we need to rotate it to become ent.(foo[n]).
433 static bool rotate_entfield_array_index_nodes(ast_expression **out)
435 ast_array_index *index;
436 ast_entfield *entfield;
440 ast_expression *entity;
442 lex_ctx ctx = ast_ctx(*out);
444 if (!ast_istype(*out, ast_array_index))
446 index = (ast_array_index*)*out;
448 if (!ast_istype(index->array, ast_entfield))
450 entfield = (ast_entfield*)index->array;
452 if (!ast_istype(entfield->field, ast_value))
454 field = (ast_value*)entfield->field;
457 entity = entfield->entity;
461 index = ast_array_index_new(ctx, (ast_expression*)field, sub);
462 entfield = ast_entfield_new(ctx, entity, (ast_expression*)index);
463 *out = (ast_expression*)entfield;
468 static bool immediate_is_true(lex_ctx ctx, ast_value *v)
470 switch (v->expression.vtype) {
472 return !!v->constval.vfloat;
474 return !!v->constval.vint;
476 if (OPTS_FLAG(CORRECT_LOGIC))
477 return v->constval.vvec.x &&
478 v->constval.vvec.y &&
481 return !!(v->constval.vvec.x);
483 if (!v->constval.vstring)
485 if (v->constval.vstring && OPTS_FLAG(TRUE_EMPTY_STRINGS))
487 return !!v->constval.vstring[0];
489 compile_error(ctx, "internal error: immediate_is_true on invalid type");
490 return !!v->constval.vfunc;
494 static bool parser_sy_apply_operator(parser_t *parser, shunt *sy)
498 ast_expression *out = NULL;
499 ast_expression *exprs[3];
500 ast_block *blocks[3];
501 ast_value *asvalue[3];
502 ast_binstore *asbinstore;
503 size_t i, assignop, addop, subop;
504 qcint generated_op = 0;
509 if (!vec_size(sy->ops)) {
510 parseerror(parser, "internal error: missing operator");
514 if (vec_last(sy->ops).paren) {
515 parseerror(parser, "unmatched parenthesis");
519 op = &operators[vec_last(sy->ops).etype - 1];
520 ctx = vec_last(sy->ops).ctx;
522 DEBUGSHUNTDO(con_out("apply %s\n", op->op));
524 if (vec_size(sy->out) < op->operands) {
525 parseerror(parser, "internal error: not enough operands: %i (operator %s (%i))", vec_size(sy->out),
526 op->op, (int)op->id);
530 vec_shrinkby(sy->ops, 1);
532 /* op(:?) has no input and no output */
536 vec_shrinkby(sy->out, op->operands);
537 for (i = 0; i < op->operands; ++i) {
538 exprs[i] = sy->out[vec_size(sy->out)+i].out;
539 blocks[i] = sy->out[vec_size(sy->out)+i].block;
540 asvalue[i] = (ast_value*)exprs[i];
543 if (blocks[0] && !vec_size(blocks[0]->exprs) && op->id != opid1(',')) {
544 parseerror(parser, "internal error: operator cannot be applied on empty blocks");
548 #define NotSameType(T) \
549 (exprs[0]->expression.vtype != exprs[1]->expression.vtype || \
550 exprs[0]->expression.vtype != T)
551 #define CanConstFold1(A) \
552 (ast_istype((A), ast_value) && ((ast_value*)(A))->hasvalue && (((ast_value*)(A))->cvq == CV_CONST) &&\
553 (A)->expression.vtype != TYPE_FUNCTION)
554 #define CanConstFold(A, B) \
555 (CanConstFold1(A) && CanConstFold1(B))
556 #define ConstV(i) (asvalue[(i)]->constval.vvec)
557 #define ConstF(i) (asvalue[(i)]->constval.vfloat)
558 #define ConstS(i) (asvalue[(i)]->constval.vstring)
562 parseerror(parser, "internal error: unhandled operator: %s (%i)", op->op, (int)op->id);
566 if (exprs[0]->expression.vtype == TYPE_ENTITY) {
567 if (exprs[1]->expression.vtype != TYPE_FIELD) {
568 parseerror(parser, "type error: right hand of member-operand should be an entity-field");
571 out = (ast_expression*)ast_entfield_new(ctx, exprs[0], exprs[1]);
573 else if (exprs[0]->expression.vtype == TYPE_VECTOR) {
574 parseerror(parser, "internal error: vector access is not supposed to be handled at this point");
578 parseerror(parser, "type error: member-of operator on something that is not an entity or vector");
584 if (exprs[0]->expression.vtype != TYPE_ARRAY &&
585 !(exprs[0]->expression.vtype == TYPE_FIELD &&
586 exprs[0]->expression.next->expression.vtype == TYPE_ARRAY))
588 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
589 parseerror(parser, "cannot index value of type %s", ty1);
592 if (exprs[1]->expression.vtype != TYPE_FLOAT) {
593 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
594 parseerror(parser, "index must be of type float, not %s", ty1);
597 out = (ast_expression*)ast_array_index_new(ctx, exprs[0], exprs[1]);
598 if (rotate_entfield_array_index_nodes(&out))
601 /* This is not broken in fteqcc anymore */
602 if (opts.standard != COMPILER_GMQCC) {
603 /* this error doesn't need to make us bail out */
604 (void)!parsewarning(parser, WARN_EXTENSIONS,
605 "accessing array-field members of an entity without parenthesis\n"
606 " -> this is an extension from -std=gmqcc");
614 if (!ast_block_add_expr(blocks[0], exprs[1]))
617 blocks[0] = ast_block_new(ctx);
618 if (!ast_block_add_expr(blocks[0], exprs[0]) ||
619 !ast_block_add_expr(blocks[0], exprs[1]))
624 if (!ast_block_set_type(blocks[0], exprs[1]))
627 vec_push(sy->out, syblock(ctx, blocks[0]));
634 switch (exprs[0]->expression.vtype) {
636 if (CanConstFold1(exprs[0]))
637 out = (ast_expression*)parser_const_float(parser, -ConstF(0));
639 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F,
640 (ast_expression*)parser_const_float_0(parser),
644 if (CanConstFold1(exprs[0]))
645 out = (ast_expression*)parser_const_vector_f(parser,
646 -ConstV(0).x, -ConstV(0).y, -ConstV(0).z);
648 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V,
649 (ast_expression*)parser_const_vector_0(parser),
653 parseerror(parser, "invalid types used in expression: cannot negate type %s",
654 type_name[exprs[0]->expression.vtype]);
660 switch (exprs[0]->expression.vtype) {
662 if (CanConstFold1(exprs[0]))
663 out = (ast_expression*)parser_const_float(parser, !ConstF(0));
665 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
668 if (CanConstFold1(exprs[0]))
669 out = (ast_expression*)parser_const_float(parser,
670 (!ConstV(0).x && !ConstV(0).y && !ConstV(0).z));
672 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[0]);
675 if (CanConstFold1(exprs[0])) {
676 if (OPTS_FLAG(TRUE_EMPTY_STRINGS))
677 out = (ast_expression*)parser_const_float(parser, !ConstS(0));
679 out = (ast_expression*)parser_const_float(parser, !ConstS(0) || !*ConstS(0));
681 if (OPTS_FLAG(TRUE_EMPTY_STRINGS))
682 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
684 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[0]);
687 /* we don't constant-fold NOT for these types */
689 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_ENT, exprs[0]);
692 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_FNC, exprs[0]);
695 parseerror(parser, "invalid types used in expression: cannot logically negate type %s",
696 type_name[exprs[0]->expression.vtype]);
702 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
703 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
705 parseerror(parser, "invalid types used in expression: cannot add type %s and %s",
706 type_name[exprs[0]->expression.vtype],
707 type_name[exprs[1]->expression.vtype]);
710 switch (exprs[0]->expression.vtype) {
712 if (CanConstFold(exprs[0], exprs[1]))
714 out = (ast_expression*)parser_const_float(parser, ConstF(0) + ConstF(1));
717 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F, exprs[0], exprs[1]);
720 if (CanConstFold(exprs[0], exprs[1]))
721 out = (ast_expression*)parser_const_vector(parser, vec3_add(ConstV(0), ConstV(1)));
723 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_V, exprs[0], exprs[1]);
726 parseerror(parser, "invalid types used in expression: cannot add type %s and %s",
727 type_name[exprs[0]->expression.vtype],
728 type_name[exprs[1]->expression.vtype]);
733 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
734 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
736 parseerror(parser, "invalid types used in expression: cannot subtract type %s from %s",
737 type_name[exprs[1]->expression.vtype],
738 type_name[exprs[0]->expression.vtype]);
741 switch (exprs[0]->expression.vtype) {
743 if (CanConstFold(exprs[0], exprs[1]))
744 out = (ast_expression*)parser_const_float(parser, ConstF(0) - ConstF(1));
746 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F, exprs[0], exprs[1]);
749 if (CanConstFold(exprs[0], exprs[1]))
750 out = (ast_expression*)parser_const_vector(parser, vec3_sub(ConstV(0), ConstV(1)));
752 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V, exprs[0], exprs[1]);
755 parseerror(parser, "invalid types used in expression: cannot subtract type %s from %s",
756 type_name[exprs[1]->expression.vtype],
757 type_name[exprs[0]->expression.vtype]);
762 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype &&
763 !(exprs[0]->expression.vtype == TYPE_VECTOR &&
764 exprs[1]->expression.vtype == TYPE_FLOAT) &&
765 !(exprs[1]->expression.vtype == TYPE_VECTOR &&
766 exprs[0]->expression.vtype == TYPE_FLOAT)
769 parseerror(parser, "invalid types used in expression: cannot multiply types %s and %s",
770 type_name[exprs[1]->expression.vtype],
771 type_name[exprs[0]->expression.vtype]);
774 switch (exprs[0]->expression.vtype) {
776 if (exprs[1]->expression.vtype == TYPE_VECTOR)
778 if (CanConstFold(exprs[0], exprs[1]))
779 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(1), ConstF(0)));
781 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_FV, exprs[0], exprs[1]);
785 if (CanConstFold(exprs[0], exprs[1]))
786 out = (ast_expression*)parser_const_float(parser, ConstF(0) * ConstF(1));
788 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, exprs[0], exprs[1]);
792 if (exprs[1]->expression.vtype == TYPE_FLOAT)
794 if (CanConstFold(exprs[0], exprs[1]))
795 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(0), ConstF(1)));
797 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_VF, exprs[0], exprs[1]);
801 if (CanConstFold(exprs[0], exprs[1]))
802 out = (ast_expression*)parser_const_float(parser, vec3_mulvv(ConstV(0), ConstV(1)));
803 else if (OPTS_OPTIMIZATION(OPTIM_VECTOR_COMPONENTS) && CanConstFold1(exprs[0])) {
804 vector vec = ConstV(0);
805 if (!vec.y && !vec.z) { /* 'n 0 0' * v */
806 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
807 out = (ast_expression*)ast_member_new(ctx, exprs[1], 0, NULL);
808 out->expression.node.keep = false;
809 ((ast_member*)out)->rvalue = true;
811 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.x), out);
813 else if (!vec.x && !vec.z) { /* '0 n 0' * v */
814 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
815 out = (ast_expression*)ast_member_new(ctx, exprs[1], 1, NULL);
816 out->expression.node.keep = false;
817 ((ast_member*)out)->rvalue = true;
819 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.y), out);
821 else if (!vec.x && !vec.y) { /* '0 n 0' * v */
822 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
823 out = (ast_expression*)ast_member_new(ctx, exprs[1], 2, NULL);
824 out->expression.node.keep = false;
825 ((ast_member*)out)->rvalue = true;
827 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.z), out);
830 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
832 else if (OPTS_OPTIMIZATION(OPTIM_VECTOR_COMPONENTS) && CanConstFold1(exprs[1])) {
833 vector vec = ConstV(1);
834 if (!vec.y && !vec.z) { /* v * 'n 0 0' */
835 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
836 out = (ast_expression*)ast_member_new(ctx, exprs[0], 0, NULL);
837 out->expression.node.keep = false;
838 ((ast_member*)out)->rvalue = true;
840 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.x));
842 else if (!vec.x && !vec.z) { /* v * '0 n 0' */
843 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
844 out = (ast_expression*)ast_member_new(ctx, exprs[0], 1, NULL);
845 out->expression.node.keep = false;
846 ((ast_member*)out)->rvalue = true;
848 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.y));
850 else if (!vec.x && !vec.y) { /* v * '0 n 0' */
851 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
852 out = (ast_expression*)ast_member_new(ctx, exprs[0], 2, NULL);
853 out->expression.node.keep = false;
854 ((ast_member*)out)->rvalue = true;
856 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.z));
859 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
862 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
866 parseerror(parser, "invalid types used in expression: cannot multiply types %s and %s",
867 type_name[exprs[1]->expression.vtype],
868 type_name[exprs[0]->expression.vtype]);
873 if (NotSameType(TYPE_FLOAT)) {
874 parseerror(parser, "invalid types used in expression: cannot divide types %s and %s",
875 type_name[exprs[0]->expression.vtype],
876 type_name[exprs[1]->expression.vtype]);
879 if (CanConstFold(exprs[0], exprs[1]))
880 out = (ast_expression*)parser_const_float(parser, ConstF(0) / ConstF(1));
882 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F, exprs[0], exprs[1]);
886 parseerror(parser, "qc does not have a modulo operator");
890 if (NotSameType(TYPE_FLOAT)) {
891 parseerror(parser, "invalid types used in expression: cannot perform bit operations between types %s and %s",
892 type_name[exprs[0]->expression.vtype],
893 type_name[exprs[1]->expression.vtype]);
896 if (CanConstFold(exprs[0], exprs[1]))
897 out = (ast_expression*)parser_const_float(parser,
898 (op->id == opid1('|') ? (float)( ((qcint)ConstF(0)) | ((qcint)ConstF(1)) ) :
899 (float)( ((qcint)ConstF(0)) & ((qcint)ConstF(1)) ) ));
901 out = (ast_expression*)ast_binary_new(ctx,
902 (op->id == opid1('|') ? INSTR_BITOR : INSTR_BITAND),
906 parseerror(parser, "TODO: bitxor");
911 case opid3('<','<','='):
912 case opid3('>','>','='):
913 parseerror(parser, "TODO: shifts");
917 generated_op += 1; /* INSTR_OR */
919 generated_op += INSTR_AND;
921 if (NotSameType(TYPE_FLOAT)) {
922 parseerror(parser, "invalid types used in expression: cannot perform logical operations between types %s and %s",
923 type_name[exprs[0]->expression.vtype],
924 type_name[exprs[1]->expression.vtype]);
925 parseerror(parser, "TODO: logical ops for arbitrary types using INSTR_NOT");
926 parseerror(parser, "TODO: optional early out");
930 if (CanConstFold(exprs[0], exprs[1]))
932 if (OPTS_FLAG(PERL_LOGIC)) {
933 if (immediate_is_true(ctx, asvalue[0]))
937 out = (ast_expression*)parser_const_float(parser,
938 ( (generated_op == INSTR_OR)
939 ? (immediate_is_true(ctx, asvalue[0]) || immediate_is_true(ctx, asvalue[1]))
940 : (immediate_is_true(ctx, asvalue[0]) && immediate_is_true(ctx, asvalue[1])) )
945 if (OPTS_FLAG(PERL_LOGIC) && !ast_compare_type(exprs[0], exprs[1])) {
946 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
947 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
948 parseerror(parser, "invalid types for logical operation with -fperl-logic: %s and %s", ty1, ty2);
951 for (i = 0; i < 2; ++i) {
952 if (OPTS_FLAG(CORRECT_LOGIC) && exprs[i]->expression.vtype == TYPE_VECTOR) {
953 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[i]);
955 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
957 exprs[i] = out; out = NULL;
958 if (OPTS_FLAG(PERL_LOGIC)) {
959 /* here we want to keep the right expressions' type */
963 else if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && exprs[i]->expression.vtype == TYPE_STRING) {
964 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[i]);
966 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
968 exprs[i] = out; out = NULL;
969 if (OPTS_FLAG(PERL_LOGIC)) {
970 /* here we want to keep the right expressions' type */
975 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
980 if (vec_last(parser->pot) != POT_TERNARY2) {
981 parseerror(parser, "mismatched parenthesis/ternary");
984 vec_pop(parser->pot);
985 if (exprs[1]->expression.vtype != exprs[2]->expression.vtype) {
986 ast_type_to_string(exprs[1], ty1, sizeof(ty1));
987 ast_type_to_string(exprs[2], ty2, sizeof(ty2));
988 parseerror(parser, "operands of ternary expression must have the same type, got %s and %s", ty1, ty2);
991 if (CanConstFold1(exprs[0]))
992 out = (ConstF(0) ? exprs[1] : exprs[2]);
994 out = (ast_expression*)ast_ternary_new(ctx, exprs[0], exprs[1], exprs[2]);
998 generated_op += 1; /* INSTR_GT */
1000 generated_op += 1; /* INSTR_LT */
1001 case opid2('>', '='):
1002 generated_op += 1; /* INSTR_GE */
1003 case opid2('<', '='):
1004 generated_op += INSTR_LE;
1005 if (NotSameType(TYPE_FLOAT)) {
1006 parseerror(parser, "invalid types used in expression: cannot perform comparison between types %s and %s",
1007 type_name[exprs[0]->expression.vtype],
1008 type_name[exprs[1]->expression.vtype]);
1011 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
1013 case opid2('!', '='):
1014 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) {
1015 parseerror(parser, "invalid types used in expression: cannot perform comparison between types %s and %s",
1016 type_name[exprs[0]->expression.vtype],
1017 type_name[exprs[1]->expression.vtype]);
1020 out = (ast_expression*)ast_binary_new(ctx, type_ne_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]);
1022 case opid2('=', '='):
1023 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) {
1024 parseerror(parser, "invalid types used in expression: cannot perform comparison between types %s and %s",
1025 type_name[exprs[0]->expression.vtype],
1026 type_name[exprs[1]->expression.vtype]);
1029 out = (ast_expression*)ast_binary_new(ctx, type_eq_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]);
1033 if (ast_istype(exprs[0], ast_entfield)) {
1034 ast_expression *field = ((ast_entfield*)exprs[0])->field;
1035 if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) &&
1036 exprs[0]->expression.vtype == TYPE_FIELD &&
1037 exprs[0]->expression.next->expression.vtype == TYPE_VECTOR)
1039 assignop = type_storep_instr[TYPE_VECTOR];
1042 assignop = type_storep_instr[exprs[0]->expression.vtype];
1043 if (assignop == AINSTR_END ||
1044 !ast_compare_type(field->expression.next, exprs[1]))
1046 ast_type_to_string(field->expression.next, ty1, sizeof(ty1));
1047 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1048 if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
1049 field->expression.next->expression.vtype == TYPE_FUNCTION &&
1050 exprs[1]->expression.vtype == TYPE_FUNCTION)
1052 (void)!parsewarning(parser, WARN_ASSIGN_FUNCTION_TYPES,
1053 "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1056 parseerror(parser, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1061 if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) &&
1062 exprs[0]->expression.vtype == TYPE_FIELD &&
1063 exprs[0]->expression.next->expression.vtype == TYPE_VECTOR)
1065 assignop = type_store_instr[TYPE_VECTOR];
1068 assignop = type_store_instr[exprs[0]->expression.vtype];
1071 if (assignop == AINSTR_END) {
1072 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1073 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1074 parseerror(parser, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1076 else if (exprs[1]->expression.vtype != TYPE_NIL &&
1077 !ast_compare_type(exprs[0], exprs[1]))
1079 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1080 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1081 if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
1082 exprs[0]->expression.vtype == TYPE_FUNCTION &&
1083 exprs[1]->expression.vtype == TYPE_FUNCTION)
1085 (void)!parsewarning(parser, WARN_ASSIGN_FUNCTION_TYPES,
1086 "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1089 parseerror(parser, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1092 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1093 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1095 out = (ast_expression*)ast_store_new(ctx, assignop, exprs[0], exprs[1]);
1097 case opid3('+','+','P'):
1098 case opid3('-','-','P'):
1100 if (exprs[0]->expression.vtype != TYPE_FLOAT) {
1101 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1102 parseerror(parser, "invalid type for prefix increment: %s", ty1);
1105 if (op->id == opid3('+','+','P'))
1106 addop = INSTR_ADD_F;
1108 addop = INSTR_SUB_F;
1109 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1110 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1112 if (ast_istype(exprs[0], ast_entfield)) {
1113 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
1115 (ast_expression*)parser_const_float_1(parser));
1117 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
1119 (ast_expression*)parser_const_float_1(parser));
1122 case opid3('S','+','+'):
1123 case opid3('S','-','-'):
1125 if (exprs[0]->expression.vtype != TYPE_FLOAT) {
1126 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1127 parseerror(parser, "invalid type for suffix increment: %s", ty1);
1130 if (op->id == opid3('S','+','+')) {
1131 addop = INSTR_ADD_F;
1132 subop = INSTR_SUB_F;
1134 addop = INSTR_SUB_F;
1135 subop = INSTR_ADD_F;
1137 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1138 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1140 if (ast_istype(exprs[0], ast_entfield)) {
1141 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
1143 (ast_expression*)parser_const_float_1(parser));
1145 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
1147 (ast_expression*)parser_const_float_1(parser));
1151 out = (ast_expression*)ast_binary_new(ctx, subop,
1153 (ast_expression*)parser_const_float_1(parser));
1155 case opid2('+','='):
1156 case opid2('-','='):
1157 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
1158 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
1160 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1161 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1162 parseerror(parser, "invalid types used in expression: cannot add or subtract type %s and %s",
1166 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1167 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1169 if (ast_istype(exprs[0], ast_entfield))
1170 assignop = type_storep_instr[exprs[0]->expression.vtype];
1172 assignop = type_store_instr[exprs[0]->expression.vtype];
1173 switch (exprs[0]->expression.vtype) {
1175 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1176 (op->id == opid2('+','=') ? INSTR_ADD_F : INSTR_SUB_F),
1177 exprs[0], exprs[1]);
1180 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1181 (op->id == opid2('+','=') ? INSTR_ADD_V : INSTR_SUB_V),
1182 exprs[0], exprs[1]);
1185 parseerror(parser, "invalid types used in expression: cannot add or subtract type %s and %s",
1186 type_name[exprs[0]->expression.vtype],
1187 type_name[exprs[1]->expression.vtype]);
1191 case opid2('*','='):
1192 case opid2('/','='):
1193 if (exprs[1]->expression.vtype != TYPE_FLOAT ||
1194 !(exprs[0]->expression.vtype == TYPE_FLOAT ||
1195 exprs[0]->expression.vtype == TYPE_VECTOR))
1197 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1198 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1199 parseerror(parser, "invalid types used in expression: %s and %s",
1203 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1204 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1206 if (ast_istype(exprs[0], ast_entfield))
1207 assignop = type_storep_instr[exprs[0]->expression.vtype];
1209 assignop = type_store_instr[exprs[0]->expression.vtype];
1210 switch (exprs[0]->expression.vtype) {
1212 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1213 (op->id == opid2('*','=') ? INSTR_MUL_F : INSTR_DIV_F),
1214 exprs[0], exprs[1]);
1217 if (op->id == opid2('*','=')) {
1218 out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
1219 exprs[0], exprs[1]);
1221 /* there's no DIV_VF */
1222 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F,
1223 (ast_expression*)parser_const_float_1(parser),
1227 out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
1232 parseerror(parser, "invalid types used in expression: cannot add or subtract type %s and %s",
1233 type_name[exprs[0]->expression.vtype],
1234 type_name[exprs[1]->expression.vtype]);
1238 case opid2('&','='):
1239 case opid2('|','='):
1240 if (NotSameType(TYPE_FLOAT)) {
1241 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1242 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1243 parseerror(parser, "invalid types used in expression: %s and %s",
1247 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1248 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1250 if (ast_istype(exprs[0], ast_entfield))
1251 assignop = type_storep_instr[exprs[0]->expression.vtype];
1253 assignop = type_store_instr[exprs[0]->expression.vtype];
1254 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1255 (op->id == opid2('&','=') ? INSTR_BITAND : INSTR_BITOR),
1256 exprs[0], exprs[1]);
1258 case opid3('&','~','='):
1259 /* This is like: a &= ~(b);
1260 * But QC has no bitwise-not, so we implement it as
1263 if (NotSameType(TYPE_FLOAT)) {
1264 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1265 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1266 parseerror(parser, "invalid types used in expression: %s and %s",
1270 if (ast_istype(exprs[0], ast_entfield))
1271 assignop = type_storep_instr[exprs[0]->expression.vtype];
1273 assignop = type_store_instr[exprs[0]->expression.vtype];
1274 out = (ast_expression*)ast_binary_new(ctx, INSTR_BITAND, exprs[0], exprs[1]);
1277 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1278 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1280 asbinstore = ast_binstore_new(ctx, assignop, INSTR_SUB_F, exprs[0], out);
1281 asbinstore->keep_dest = true;
1282 out = (ast_expression*)asbinstore;
1288 parseerror(parser, "failed to apply operand %s", op->op);
1292 DEBUGSHUNTDO(con_out("applied %s\n", op->op));
1293 vec_push(sy->out, syexp(ctx, out));
1297 static bool parser_close_call(parser_t *parser, shunt *sy)
1299 /* was a function call */
1300 ast_expression *fun;
1306 vec_shrinkby(sy->ops, 1);
1307 fid = sy->ops[vec_size(sy->ops)].off;
1309 /* out[fid] is the function
1310 * everything above is parameters...
1311 * 0 params = nothing
1312 * 1 params = ast_expression
1316 if (vec_size(sy->out) < 1 || vec_size(sy->out) <= fid) {
1317 parseerror(parser, "internal error: function call needs function and parameter list...");
1321 fun = sy->out[fid].out;
1323 if (fun == intrinsic_debug_typestring) {
1325 if (fid+2 != vec_size(sy->out) ||
1326 vec_last(sy->out).block)
1328 parseerror(parser, "intrinsic __builtin_debug_typestring requires exactly 1 parameter");
1331 ast_type_to_string(vec_last(sy->out).out, ty, sizeof(ty));
1332 ast_unref(vec_last(sy->out).out);
1333 sy->out[fid] = syexp(ast_ctx(vec_last(sy->out).out),
1334 (ast_expression*)parser_const_string(parser, ty, false));
1335 vec_shrinkby(sy->out, 1);
1339 call = ast_call_new(sy->ops[vec_size(sy->ops)].ctx, fun);
1341 parseerror(parser, "internal error: failed to create ast_call node");
1345 if (fid+1 == vec_size(sy->out)) {
1348 } else if (fid+2 == vec_size(sy->out)) {
1350 vec_shrinkby(sy->out, 1);
1351 params = sy->out[vec_size(sy->out)].block;
1355 vec_push(call->params, sy->out[vec_size(sy->out)].out);
1357 paramcount = vec_size(params->exprs);
1358 call->params = params->exprs;
1359 params->exprs = NULL;
1362 (void)!ast_call_check_types(call);
1364 parseerror(parser, "invalid function call");
1368 /* overwrite fid, the function, with a call */
1369 sy->out[fid] = syexp(call->expression.node.context, (ast_expression*)call);
1371 if (fun->expression.vtype != TYPE_FUNCTION) {
1372 parseerror(parser, "not a function (%s)", type_name[fun->expression.vtype]);
1377 if (!fun->expression.next) {
1378 parseerror(parser, "could not determine function return type");
1381 ast_value *fval = (ast_istype(fun, ast_value) ? ((ast_value*)fun) : NULL);
1383 if (fun->expression.flags & AST_FLAG_DEPRECATED) {
1385 return !parsewarning(parser, WARN_DEPRECATED, "call to function (which is marked deprecated)\n"
1386 "-> it has been declared here: %s:%i",
1387 ast_ctx(fun).file, ast_ctx(fun).line);
1389 return !parsewarning(parser, WARN_DEPRECATED, "call to `%s` (which is marked deprecated)\n"
1390 "-> `%s` declared here: %s:%i",
1391 fval->name, fval->name, ast_ctx(fun).file, ast_ctx(fun).line);
1394 if (vec_size(fun->expression.params) != paramcount &&
1395 !((fun->expression.flags & AST_FLAG_VARIADIC) &&
1396 vec_size(fun->expression.params) < paramcount))
1398 const char *fewmany = (vec_size(fun->expression.params) > paramcount) ? "few" : "many";
1399 if (opts.standard == COMPILER_GMQCC)
1402 parseerror(parser, "too %s parameters for call to %s: expected %i, got %i\n"
1403 " -> `%s` has been declared here: %s:%i",
1404 fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount,
1405 fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
1407 parseerror(parser, "too %s parameters for function call: expected %i, got %i\n"
1408 " -> it has been declared here: %s:%i",
1409 fewmany, (int)vec_size(fun->expression.params), (int)paramcount,
1410 ast_ctx(fun).file, (int)ast_ctx(fun).line);
1416 return !parsewarning(parser, WARN_TOO_FEW_PARAMETERS,
1417 "too %s parameters for call to %s: expected %i, got %i\n"
1418 " -> `%s` has been declared here: %s:%i",
1419 fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount,
1420 fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
1422 return !parsewarning(parser, WARN_TOO_FEW_PARAMETERS,
1423 "too %s parameters for function call: expected %i, got %i\n"
1424 " -> it has been declared here: %s:%i",
1425 fewmany, (int)vec_size(fun->expression.params), (int)paramcount,
1426 ast_ctx(fun).file, (int)ast_ctx(fun).line);
1434 static bool parser_close_paren(parser_t *parser, shunt *sy, bool functions_only)
1436 if (!vec_size(sy->ops)) {
1437 parseerror(parser, "unmatched closing paren");
1440 /* this would for bit a + (x) because there are no operators inside (x)
1441 if (sy->ops[vec_size(sy->ops)-1].paren == 1) {
1442 parseerror(parser, "empty parenthesis expression");
1446 while (vec_size(sy->ops)) {
1447 if (sy->ops[vec_size(sy->ops)-1].paren == SY_PAREN_FUNC) {
1448 if (!parser_close_call(parser, sy))
1452 if (sy->ops[vec_size(sy->ops)-1].paren == SY_PAREN_EXPR) {
1453 vec_shrinkby(sy->ops, 1);
1454 return !functions_only;
1456 if (sy->ops[vec_size(sy->ops)-1].paren == SY_PAREN_INDEX) {
1459 /* pop off the parenthesis */
1460 vec_shrinkby(sy->ops, 1);
1461 /* then apply the index operator */
1462 if (!parser_sy_apply_operator(parser, sy))
1466 if (sy->ops[vec_size(sy->ops)-1].paren == SY_PAREN_TERNARY) {
1469 if (vec_last(parser->pot) != POT_TERNARY1) {
1470 parseerror(parser, "mismatched colon in ternary expression (missing closing paren?)");
1473 vec_last(parser->pot) = POT_TERNARY2;
1474 /* pop off the parenthesis */
1475 vec_shrinkby(sy->ops, 1);
1478 if (!parser_sy_apply_operator(parser, sy))
1484 static void parser_reclassify_token(parser_t *parser)
1487 for (i = 0; i < operator_count; ++i) {
1488 if (!strcmp(parser_tokval(parser), operators[i].op)) {
1489 parser->tok = TOKEN_OPERATOR;
1495 static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma)
1497 ast_expression *expr = NULL;
1499 bool wantop = false;
1500 bool gotmemberof = false;
1502 /* count the parens because an if starts with one, so the
1503 * end of a condition is an unmatched closing paren
1511 parser->lex->flags.noops = false;
1513 parser_reclassify_token(parser);
1518 gotmemberof = false;
1520 parser->memberof = 0;
1522 if (OPTS_FLAG(TRANSLATABLE_STRINGS) &&
1523 parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "_"))
1525 /* a translatable string */
1529 parseerror(parser, "expected operator or end of statement, got constant");
1533 parser->lex->flags.noops = true;
1534 if (!parser_next(parser) || parser->tok != '(') {
1535 parseerror(parser, "use _(\"string\") to create a translatable string constant");
1538 parser->lex->flags.noops = false;
1539 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
1540 parseerror(parser, "expected a constant string in translatable-string extension");
1543 val = parser_const_string(parser, parser_tokval(parser), true);
1547 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1548 DEBUGSHUNTDO(con_out("push string\n"));
1550 if (!parser_next(parser) || parser->tok != ')') {
1551 parseerror(parser, "expected closing paren after translatable string");
1555 else if (parser->tok == TOKEN_IDENT)
1557 ast_expression *var;
1559 parseerror(parser, "expected operator or end of statement");
1564 if (opts.standard == COMPILER_GMQCC)
1566 if (parser->memberof == TYPE_ENTITY) {
1567 /* still get vars first since there could be a fieldpointer */
1568 var = parser_find_var(parser, parser_tokval(parser));
1570 var = parser_find_field(parser, parser_tokval(parser));
1572 else if (parser->memberof == TYPE_VECTOR)
1574 parseerror(parser, "TODO: implement effective vector member access");
1577 else if (parser->memberof) {
1578 parseerror(parser, "namespace for member not found");
1582 var = parser_find_var(parser, parser_tokval(parser));
1584 var = parser_find_var(parser, parser_tokval(parser));
1586 var = parser_find_field(parser, parser_tokval(parser));
1590 if (!strcmp(parser_tokval(parser), "__builtin_debug_typestring")) {
1591 var = (ast_expression*)intrinsic_debug_typestring;
1596 parseerror(parser, "unexpected ident: %s", parser_tokval(parser));
1602 if (ast_istype(var, ast_value)) {
1603 ((ast_value*)var)->uses++;
1605 else if (ast_istype(var, ast_member)) {
1606 ast_member *mem = (ast_member*)var;
1607 if (ast_istype(mem->owner, ast_value))
1608 ((ast_value*)(mem->owner))->uses++;
1611 vec_push(sy.out, syexp(parser_ctx(parser), var));
1612 DEBUGSHUNTDO(con_out("push %s\n", parser_tokval(parser)));
1614 else if (parser->tok == TOKEN_FLOATCONST) {
1617 parseerror(parser, "expected operator or end of statement, got constant");
1621 val = parser_const_float(parser, (parser_token(parser)->constval.f));
1624 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1625 DEBUGSHUNTDO(con_out("push %g\n", parser_token(parser)->constval.f));
1627 else if (parser->tok == TOKEN_INTCONST || parser->tok == TOKEN_CHARCONST) {
1630 parseerror(parser, "expected operator or end of statement, got constant");
1634 val = parser_const_float(parser, (double)(parser_token(parser)->constval.i));
1637 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1638 DEBUGSHUNTDO(con_out("push %i\n", parser_token(parser)->constval.i));
1640 else if (parser->tok == TOKEN_STRINGCONST) {
1643 parseerror(parser, "expected operator or end of statement, got constant");
1647 val = parser_const_string(parser, parser_tokval(parser), false);
1650 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1651 DEBUGSHUNTDO(con_out("push string\n"));
1653 else if (parser->tok == TOKEN_VECTORCONST) {
1656 parseerror(parser, "expected operator or end of statement, got constant");
1660 val = parser_const_vector(parser, parser_token(parser)->constval.v);
1663 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1664 DEBUGSHUNTDO(con_out("push '%g %g %g'\n",
1665 parser_token(parser)->constval.v.x,
1666 parser_token(parser)->constval.v.y,
1667 parser_token(parser)->constval.v.z));
1669 else if (parser->tok == '(') {
1670 parseerror(parser, "internal error: '(' should be classified as operator");
1673 else if (parser->tok == '[') {
1674 parseerror(parser, "internal error: '[' should be classified as operator");
1677 else if (parser->tok == ')') {
1679 DEBUGSHUNTDO(con_out("do[op] )\n"));
1683 /* we do expect an operator next */
1684 /* closing an opening paren */
1685 if (!parser_close_paren(parser, &sy, false))
1687 if (vec_last(parser->pot) != POT_PAREN) {
1688 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1691 vec_pop(parser->pot);
1693 DEBUGSHUNTDO(con_out("do[nop] )\n"));
1697 /* allowed for function calls */
1698 if (!parser_close_paren(parser, &sy, true))
1700 if (vec_last(parser->pot) != POT_PAREN) {
1701 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1704 vec_pop(parser->pot);
1708 else if (parser->tok == ']') {
1710 parseerror(parser, "operand expected");
1714 if (!parser_close_paren(parser, &sy, false))
1716 if (vec_last(parser->pot) != POT_PAREN) {
1717 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1720 vec_pop(parser->pot);
1723 else if (parser->tok == TOKEN_TYPENAME) {
1724 parseerror(parser, "unexpected typename");
1727 else if (parser->tok != TOKEN_OPERATOR) {
1729 parseerror(parser, "expected operator or end of statement");
1736 /* classify the operator */
1737 const oper_info *op;
1738 const oper_info *olast = NULL;
1740 for (o = 0; o < operator_count; ++o) {
1741 if (((!(operators[o].flags & OP_PREFIX) == !!wantop)) &&
1742 /* !(operators[o].flags & OP_SUFFIX) && / * remove this */
1743 !strcmp(parser_tokval(parser), operators[o].op))
1748 if (o == operator_count) {
1749 /* no operator found... must be the end of the statement */
1752 /* found an operator */
1755 /* when declaring variables, a comma starts a new variable */
1756 if (op->id == opid1(',') && !parens && stopatcomma) {
1757 /* fixup the token */
1762 /* a colon without a pervious question mark cannot be a ternary */
1763 if (!ternaries && op->id == opid2(':','?')) {
1768 if (op->id == opid1(',')) {
1769 if (vec_size(parser->pot) && vec_last(parser->pot) == POT_TERNARY2) {
1770 (void)!parsewarning(parser, WARN_TERNARY_PRECEDENCE, "suggesting parenthesis around ternary expression");
1774 if (vec_size(sy.ops) && !vec_last(sy.ops).paren)
1775 olast = &operators[vec_last(sy.ops).etype-1];
1778 (op->prec < olast->prec) ||
1779 (op->assoc == ASSOC_LEFT && op->prec <= olast->prec) ) )
1781 if (!parser_sy_apply_operator(parser, &sy))
1783 if (vec_size(sy.ops) && !vec_last(sy.ops).paren)
1784 olast = &operators[vec_last(sy.ops).etype-1];
1789 if (op->id == opid1('.') && opts.standard == COMPILER_GMQCC) {
1790 /* for gmqcc standard: open up the namespace of the previous type */
1791 ast_expression *prevex = vec_last(sy.out).out;
1793 parseerror(parser, "unexpected member operator");
1796 if (prevex->expression.vtype == TYPE_ENTITY)
1797 parser->memberof = TYPE_ENTITY;
1798 else if (prevex->expression.vtype == TYPE_VECTOR)
1799 parser->memberof = TYPE_VECTOR;
1801 parseerror(parser, "type error: type has no members");
1807 if (op->id == opid1('(')) {
1809 size_t sycount = vec_size(sy.out);
1810 DEBUGSHUNTDO(con_out("push [op] (\n"));
1811 ++parens; vec_push(parser->pot, POT_PAREN);
1812 /* we expected an operator, this is the function-call operator */
1813 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_FUNC, sycount-1));
1815 ++parens; vec_push(parser->pot, POT_PAREN);
1816 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_EXPR, 0));
1817 DEBUGSHUNTDO(con_out("push [nop] (\n"));
1820 } else if (op->id == opid1('[')) {
1822 parseerror(parser, "unexpected array subscript");
1825 ++parens; vec_push(parser->pot, POT_PAREN);
1826 /* push both the operator and the paren, this makes life easier */
1827 vec_push(sy.ops, syop(parser_ctx(parser), op));
1828 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_INDEX, 0));
1830 } else if (op->id == opid2('?',':')) {
1831 vec_push(sy.ops, syop(parser_ctx(parser), op));
1832 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_TERNARY, 0));
1835 vec_push(parser->pot, POT_TERNARY1);
1836 } else if (op->id == opid2(':','?')) {
1837 if (!vec_size(parser->pot)) {
1838 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
1841 if (vec_last(parser->pot) != POT_TERNARY1) {
1842 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
1845 if (!parser_close_paren(parser, &sy, false))
1847 vec_push(sy.ops, syop(parser_ctx(parser), op));
1851 DEBUGSHUNTDO(con_out("push operator %s\n", op->op));
1852 vec_push(sy.ops, syop(parser_ctx(parser), op));
1853 wantop = !!(op->flags & OP_SUFFIX);
1856 if (!parser_next(parser)) {
1859 if (parser->tok == ';' ||
1860 (!parens && parser->tok == ']'))
1866 while (vec_size(sy.ops)) {
1867 if (!parser_sy_apply_operator(parser, &sy))
1871 parser->lex->flags.noops = true;
1872 if (!vec_size(sy.out)) {
1873 parseerror(parser, "empty expression");
1876 expr = sy.out[0].out;
1879 DEBUGSHUNTDO(con_out("shunt done\n"));
1880 if (vec_size(parser->pot)) {
1881 parseerror(parser, "internal error: vec_size(parser->pot) = %lu", (unsigned long)vec_size(parser->pot));
1884 vec_free(parser->pot);
1888 parser->lex->flags.noops = true;
1894 static ast_expression* parse_expression(parser_t *parser, bool stopatcomma)
1896 ast_expression *e = parse_expression_leave(parser, stopatcomma);
1899 if (!parser_next(parser)) {
1906 static void parser_enterblock(parser_t *parser)
1908 vec_push(parser->variables, util_htnew(PARSER_HT_SIZE));
1909 vec_push(parser->_blocklocals, vec_size(parser->_locals));
1910 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
1911 vec_push(parser->_blocktypedefs, vec_size(parser->_typedefs));
1912 vec_push(parser->_block_ctx, parser_ctx(parser));
1915 static bool parser_leaveblock(parser_t *parser)
1918 size_t locals, typedefs;
1920 if (vec_size(parser->variables) <= PARSER_HT_LOCALS) {
1921 parseerror(parser, "internal error: parser_leaveblock with no block");
1925 util_htdel(vec_last(parser->variables));
1926 vec_pop(parser->variables);
1927 if (!vec_size(parser->_blocklocals)) {
1928 parseerror(parser, "internal error: parser_leaveblock with no block (2)");
1932 locals = vec_last(parser->_blocklocals);
1933 vec_pop(parser->_blocklocals);
1934 while (vec_size(parser->_locals) != locals) {
1935 ast_expression *e = vec_last(parser->_locals);
1936 ast_value *v = (ast_value*)e;
1937 vec_pop(parser->_locals);
1938 if (ast_istype(e, ast_value) && !v->uses) {
1939 if (compile_warning(ast_ctx(v), WARN_UNUSED_VARIABLE, "unused variable: `%s`", v->name))
1944 typedefs = vec_last(parser->_blocktypedefs);
1945 while (vec_size(parser->_typedefs) != typedefs) {
1946 ast_delete(vec_last(parser->_typedefs));
1947 vec_pop(parser->_typedefs);
1949 util_htdel(vec_last(parser->typedefs));
1950 vec_pop(parser->typedefs);
1952 vec_pop(parser->_block_ctx);
1956 static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e)
1958 vec_push(parser->_locals, e);
1959 util_htset(vec_last(parser->variables), name, (void*)e);
1962 static ast_expression* process_condition(parser_t *parser, ast_expression *cond, bool *_ifnot)
1966 ast_expression *prev;
1968 if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && cond->expression.vtype == TYPE_STRING)
1971 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_S, cond);
1974 parseerror(parser, "internal error: failed to process condition");
1979 else if (OPTS_FLAG(CORRECT_LOGIC) && cond->expression.vtype == TYPE_VECTOR)
1981 /* vector types need to be cast to true booleans */
1982 ast_binary *bin = (ast_binary*)cond;
1983 if (!OPTS_FLAG(PERL_LOGIC) || !ast_istype(cond, ast_binary) || !(bin->op == INSTR_AND || bin->op == INSTR_OR))
1985 /* in perl-logic, AND and OR take care of the -fcorrect-logic */
1987 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_V, cond);
1990 parseerror(parser, "internal error: failed to process condition");
1997 unary = (ast_unary*)cond;
1998 while (ast_istype(cond, ast_unary) && unary->op == INSTR_NOT_F)
2000 cond = unary->operand;
2001 unary->operand = NULL;
2004 unary = (ast_unary*)cond;
2008 parseerror(parser, "internal error: failed to process condition");
2010 if (ifnot) *_ifnot = !*_ifnot;
2014 static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out)
2017 ast_expression *cond, *ontrue = NULL, *onfalse = NULL;
2020 lex_ctx ctx = parser_ctx(parser);
2022 (void)block; /* not touching */
2024 /* skip the 'if', parse an optional 'not' and check for an opening paren */
2025 if (!parser_next(parser)) {
2026 parseerror(parser, "expected condition or 'not'");
2029 if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "not")) {
2031 if (!parser_next(parser)) {
2032 parseerror(parser, "expected condition in parenthesis");
2036 if (parser->tok != '(') {
2037 parseerror(parser, "expected 'if' condition in parenthesis");
2040 /* parse into the expression */
2041 if (!parser_next(parser)) {
2042 parseerror(parser, "expected 'if' condition after opening paren");
2045 /* parse the condition */
2046 cond = parse_expression_leave(parser, false);
2050 if (parser->tok != ')') {
2051 parseerror(parser, "expected closing paren after 'if' condition");
2055 /* parse into the 'then' branch */
2056 if (!parser_next(parser)) {
2057 parseerror(parser, "expected statement for on-true branch of 'if'");
2061 if (!parse_statement_or_block(parser, &ontrue)) {
2065 /* check for an else */
2066 if (!strcmp(parser_tokval(parser), "else")) {
2067 /* parse into the 'else' branch */
2068 if (!parser_next(parser)) {
2069 parseerror(parser, "expected on-false branch after 'else'");
2074 if (!parse_statement_or_block(parser, &onfalse)) {
2081 cond = process_condition(parser, cond, &ifnot);
2083 if (ontrue) ast_delete(ontrue);
2084 if (onfalse) ast_delete(onfalse);
2089 ifthen = ast_ifthen_new(ctx, cond, onfalse, ontrue);
2091 ifthen = ast_ifthen_new(ctx, cond, ontrue, onfalse);
2092 *out = (ast_expression*)ifthen;
2096 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out);
2097 static bool parse_while(parser_t *parser, ast_block *block, ast_expression **out)
2102 /* skip the 'while' and get the body */
2103 if (!parser_next(parser)) {
2104 if (OPTS_FLAG(LOOP_LABELS))
2105 parseerror(parser, "expected loop label or 'while' condition in parenthesis");
2107 parseerror(parser, "expected 'while' condition in parenthesis");
2111 if (parser->tok == ':') {
2112 if (!OPTS_FLAG(LOOP_LABELS))
2113 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2114 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2115 parseerror(parser, "expected loop label");
2118 label = util_strdup(parser_tokval(parser));
2119 if (!parser_next(parser)) {
2121 parseerror(parser, "expected 'while' condition in parenthesis");
2126 if (parser->tok != '(') {
2127 parseerror(parser, "expected 'while' condition in parenthesis");
2131 vec_push(parser->breaks, label);
2132 vec_push(parser->continues, label);
2134 rv = parse_while_go(parser, block, out);
2137 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2138 parseerror(parser, "internal error: label stack corrupted");
2144 vec_pop(parser->breaks);
2145 vec_pop(parser->continues);
2150 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out)
2153 ast_expression *cond, *ontrue;
2157 lex_ctx ctx = parser_ctx(parser);
2159 (void)block; /* not touching */
2161 /* parse into the expression */
2162 if (!parser_next(parser)) {
2163 parseerror(parser, "expected 'while' condition after opening paren");
2166 /* parse the condition */
2167 cond = parse_expression_leave(parser, false);
2171 if (parser->tok != ')') {
2172 parseerror(parser, "expected closing paren after 'while' condition");
2176 /* parse into the 'then' branch */
2177 if (!parser_next(parser)) {
2178 parseerror(parser, "expected while-loop body");
2182 if (!parse_statement_or_block(parser, &ontrue)) {
2187 cond = process_condition(parser, cond, &ifnot);
2192 aloop = ast_loop_new(ctx, NULL, cond, ifnot, NULL, false, NULL, ontrue);
2193 *out = (ast_expression*)aloop;
2197 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out);
2198 static bool parse_dowhile(parser_t *parser, ast_block *block, ast_expression **out)
2203 /* skip the 'do' and get the body */
2204 if (!parser_next(parser)) {
2205 if (OPTS_FLAG(LOOP_LABELS))
2206 parseerror(parser, "expected loop label or body");
2208 parseerror(parser, "expected loop body");
2212 if (parser->tok == ':') {
2213 if (!OPTS_FLAG(LOOP_LABELS))
2214 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2215 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2216 parseerror(parser, "expected loop label");
2219 label = util_strdup(parser_tokval(parser));
2220 if (!parser_next(parser)) {
2222 parseerror(parser, "expected loop body");
2227 vec_push(parser->breaks, label);
2228 vec_push(parser->continues, label);
2230 rv = parse_dowhile_go(parser, block, out);
2233 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2234 parseerror(parser, "internal error: label stack corrupted");
2240 vec_pop(parser->breaks);
2241 vec_pop(parser->continues);
2246 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out)
2249 ast_expression *cond, *ontrue;
2253 lex_ctx ctx = parser_ctx(parser);
2255 (void)block; /* not touching */
2257 if (!parse_statement_or_block(parser, &ontrue))
2260 /* expect the "while" */
2261 if (parser->tok != TOKEN_KEYWORD ||
2262 strcmp(parser_tokval(parser), "while"))
2264 parseerror(parser, "expected 'while' and condition");
2269 /* skip the 'while' and check for opening paren */
2270 if (!parser_next(parser) || parser->tok != '(') {
2271 parseerror(parser, "expected 'while' condition in parenthesis");
2275 /* parse into the expression */
2276 if (!parser_next(parser)) {
2277 parseerror(parser, "expected 'while' condition after opening paren");
2281 /* parse the condition */
2282 cond = parse_expression_leave(parser, false);
2286 if (parser->tok != ')') {
2287 parseerror(parser, "expected closing paren after 'while' condition");
2293 if (!parser_next(parser) || parser->tok != ';') {
2294 parseerror(parser, "expected semicolon after condition");
2300 if (!parser_next(parser)) {
2301 parseerror(parser, "parse error");
2307 cond = process_condition(parser, cond, &ifnot);
2312 aloop = ast_loop_new(ctx, NULL, NULL, false, cond, ifnot, NULL, ontrue);
2313 *out = (ast_expression*)aloop;
2317 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out);
2318 static bool parse_for(parser_t *parser, ast_block *block, ast_expression **out)
2323 /* skip the 'for' and check for opening paren */
2324 if (!parser_next(parser)) {
2325 if (OPTS_FLAG(LOOP_LABELS))
2326 parseerror(parser, "expected loop label or 'for' expressions in parenthesis");
2328 parseerror(parser, "expected 'for' expressions in parenthesis");
2332 if (parser->tok == ':') {
2333 if (!OPTS_FLAG(LOOP_LABELS))
2334 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2335 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2336 parseerror(parser, "expected loop label");
2339 label = util_strdup(parser_tokval(parser));
2340 if (!parser_next(parser)) {
2342 parseerror(parser, "expected 'for' expressions in parenthesis");
2347 if (parser->tok != '(') {
2348 parseerror(parser, "expected 'for' expressions in parenthesis");
2352 vec_push(parser->breaks, label);
2353 vec_push(parser->continues, label);
2355 rv = parse_for_go(parser, block, out);
2358 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2359 parseerror(parser, "internal error: label stack corrupted");
2365 vec_pop(parser->breaks);
2366 vec_pop(parser->continues);
2370 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out)
2373 ast_expression *initexpr, *cond, *increment, *ontrue;
2379 lex_ctx ctx = parser_ctx(parser);
2381 parser_enterblock(parser);
2388 /* parse into the expression */
2389 if (!parser_next(parser)) {
2390 parseerror(parser, "expected 'for' initializer after opening paren");
2395 if (parser->tok == TOKEN_IDENT)
2396 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
2398 if (typevar || parser->tok == TOKEN_TYPENAME) {
2399 if (opts.standard != COMPILER_GMQCC) {
2400 if (parsewarning(parser, WARN_EXTENSIONS,
2401 "current standard does not allow variable declarations in for-loop initializers"))
2404 if (!parse_variable(parser, block, true, CV_VAR, typevar, false, false, 0))
2407 else if (parser->tok != ';')
2409 initexpr = parse_expression_leave(parser, false);
2414 /* move on to condition */
2415 if (parser->tok != ';') {
2416 parseerror(parser, "expected semicolon after for-loop initializer");
2419 if (!parser_next(parser)) {
2420 parseerror(parser, "expected for-loop condition");
2424 /* parse the condition */
2425 if (parser->tok != ';') {
2426 cond = parse_expression_leave(parser, false);
2431 /* move on to incrementor */
2432 if (parser->tok != ';') {
2433 parseerror(parser, "expected semicolon after for-loop initializer");
2436 if (!parser_next(parser)) {
2437 parseerror(parser, "expected for-loop condition");
2441 /* parse the incrementor */
2442 if (parser->tok != ')') {
2443 increment = parse_expression_leave(parser, false);
2446 if (!ast_side_effects(increment)) {
2447 if (genwarning(ast_ctx(increment), WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
2453 if (parser->tok != ')') {
2454 parseerror(parser, "expected closing paren after 'for-loop' incrementor");
2457 /* parse into the 'then' branch */
2458 if (!parser_next(parser)) {
2459 parseerror(parser, "expected for-loop body");
2462 if (!parse_statement_or_block(parser, &ontrue))
2466 cond = process_condition(parser, cond, &ifnot);
2470 aloop = ast_loop_new(ctx, initexpr, cond, ifnot, NULL, false, increment, ontrue);
2471 *out = (ast_expression*)aloop;
2473 if (!parser_leaveblock(parser))
2477 if (initexpr) ast_delete(initexpr);
2478 if (cond) ast_delete(cond);
2479 if (increment) ast_delete(increment);
2480 (void)!parser_leaveblock(parser);
2484 static bool parse_return(parser_t *parser, ast_block *block, ast_expression **out)
2486 ast_expression *exp = NULL;
2487 ast_return *ret = NULL;
2488 ast_value *expected = parser->function->vtype;
2490 lex_ctx ctx = parser_ctx(parser);
2492 (void)block; /* not touching */
2494 if (!parser_next(parser)) {
2495 parseerror(parser, "expected return expression");
2499 if (parser->tok != ';') {
2500 exp = parse_expression(parser, false);
2504 if (exp->expression.vtype != expected->expression.next->expression.vtype) {
2505 parseerror(parser, "return with invalid expression");
2508 ret = ast_return_new(ctx, exp);
2514 if (!parser_next(parser))
2515 parseerror(parser, "parse error");
2516 if (expected->expression.next->expression.vtype != TYPE_VOID) {
2517 if (opts.standard != COMPILER_GMQCC)
2518 (void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value");
2520 parseerror(parser, "return without value");
2522 ret = ast_return_new(ctx, NULL);
2524 *out = (ast_expression*)ret;
2528 static bool parse_break_continue(parser_t *parser, ast_block *block, ast_expression **out, bool is_continue)
2531 unsigned int levels = 0;
2532 lex_ctx ctx = parser_ctx(parser);
2533 const char **loops = (is_continue ? parser->continues : parser->breaks);
2535 (void)block; /* not touching */
2536 if (!parser_next(parser)) {
2537 parseerror(parser, "expected semicolon or loop label");
2541 if (parser->tok == TOKEN_IDENT) {
2542 if (!OPTS_FLAG(LOOP_LABELS))
2543 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2544 i = vec_size(loops);
2546 if (loops[i] && !strcmp(loops[i], parser_tokval(parser)))
2549 parseerror(parser, "no such loop to %s: `%s`",
2550 (is_continue ? "continue" : "break out of"),
2551 parser_tokval(parser));
2556 if (!parser_next(parser)) {
2557 parseerror(parser, "expected semicolon");
2562 if (parser->tok != ';') {
2563 parseerror(parser, "expected semicolon");
2567 if (!parser_next(parser))
2568 parseerror(parser, "parse error");
2570 *out = (ast_expression*)ast_breakcont_new(ctx, is_continue, levels);
2574 /* returns true when it was a variable qualifier, false otherwise!
2575 * on error, cvq is set to CV_WRONG
2577 static bool parse_qualifiers(parser_t *parser, bool with_local, int *cvq, bool *noref, bool *is_static, uint32_t *_flags)
2579 bool had_const = false;
2580 bool had_var = false;
2581 bool had_noref = false;
2582 bool had_attrib = false;
2583 bool had_static = false;
2588 if (parser->tok == TOKEN_ATTRIBUTE_OPEN) {
2590 /* parse an attribute */
2591 if (!parser_next(parser)) {
2592 parseerror(parser, "expected attribute after `[[`");
2596 if (!strcmp(parser_tokval(parser), "noreturn")) {
2597 flags |= AST_FLAG_NORETURN;
2598 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2599 parseerror(parser, "`noreturn` attribute has no parameters, expected `]]`");
2604 else if (!strcmp(parser_tokval(parser), "noref")) {
2606 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2607 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2612 else if (!strcmp(parser_tokval(parser), "inline")) {
2613 flags |= AST_FLAG_INLINE;
2614 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2615 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2620 else if (!strcmp(parser_tokval(parser), "deprecated")) {
2621 flags |= AST_FLAG_DEPRECATED;
2622 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2623 parseerror(parser, "`deprecated` attribute has no parameters, expected `]]`");
2630 /* Skip tokens until we hit a ]] */
2631 (void)!parsewarning(parser, WARN_UNKNOWN_ATTRIBUTE, "unknown attribute starting with `%s`", parser_tokval(parser));
2632 while (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2633 if (!parser_next(parser)) {
2634 parseerror(parser, "error inside attribute");
2641 else if (!strcmp(parser_tokval(parser), "static"))
2643 else if (!strcmp(parser_tokval(parser), "const"))
2645 else if (!strcmp(parser_tokval(parser), "var"))
2647 else if (with_local && !strcmp(parser_tokval(parser), "local"))
2649 else if (!strcmp(parser_tokval(parser), "noref"))
2651 else if (!had_const && !had_var && !had_noref && !had_attrib && !had_static && !flags) {
2656 if (!parser_next(parser))
2666 *is_static = had_static;
2670 parseerror(parser, "parse error after variable qualifier");
2675 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out);
2676 static bool parse_switch(parser_t *parser, ast_block *block, ast_expression **out)
2681 /* skip the 'while' and get the body */
2682 if (!parser_next(parser)) {
2683 if (OPTS_FLAG(LOOP_LABELS))
2684 parseerror(parser, "expected loop label or 'switch' operand in parenthesis");
2686 parseerror(parser, "expected 'switch' operand in parenthesis");
2690 if (parser->tok == ':') {
2691 if (!OPTS_FLAG(LOOP_LABELS))
2692 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2693 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2694 parseerror(parser, "expected loop label");
2697 label = util_strdup(parser_tokval(parser));
2698 if (!parser_next(parser)) {
2700 parseerror(parser, "expected 'switch' operand in parenthesis");
2705 if (parser->tok != '(') {
2706 parseerror(parser, "expected 'switch' operand in parenthesis");
2710 vec_push(parser->breaks, label);
2712 rv = parse_switch_go(parser, block, out);
2715 if (vec_last(parser->breaks) != label) {
2716 parseerror(parser, "internal error: label stack corrupted");
2722 vec_pop(parser->breaks);
2727 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out)
2729 ast_expression *operand;
2732 ast_switch *switchnode;
2733 ast_switch_case swcase;
2736 bool noref, is_static;
2737 uint32_t qflags = 0;
2739 lex_ctx ctx = parser_ctx(parser);
2741 (void)block; /* not touching */
2744 /* parse into the expression */
2745 if (!parser_next(parser)) {
2746 parseerror(parser, "expected switch operand");
2749 /* parse the operand */
2750 operand = parse_expression_leave(parser, false);
2754 switchnode = ast_switch_new(ctx, operand);
2757 if (parser->tok != ')') {
2758 ast_delete(switchnode);
2759 parseerror(parser, "expected closing paren after 'switch' operand");
2763 /* parse over the opening paren */
2764 if (!parser_next(parser) || parser->tok != '{') {
2765 ast_delete(switchnode);
2766 parseerror(parser, "expected list of cases");
2770 if (!parser_next(parser)) {
2771 ast_delete(switchnode);
2772 parseerror(parser, "expected 'case' or 'default'");
2776 /* new block; allow some variables to be declared here */
2777 parser_enterblock(parser);
2780 if (parser->tok == TOKEN_IDENT)
2781 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
2782 if (typevar || parser->tok == TOKEN_TYPENAME) {
2783 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0)) {
2784 ast_delete(switchnode);
2789 if (parse_qualifiers(parser, true, &cvq, &noref, &is_static, &qflags))
2791 if (cvq == CV_WRONG) {
2792 ast_delete(switchnode);
2795 if (!parse_variable(parser, block, false, cvq, NULL, noref, is_static, qflags)) {
2796 ast_delete(switchnode);
2805 while (parser->tok != '}') {
2806 ast_block *caseblock;
2808 if (!strcmp(parser_tokval(parser), "case")) {
2809 if (!parser_next(parser)) {
2810 ast_delete(switchnode);
2811 parseerror(parser, "expected expression for case");
2814 swcase.value = parse_expression_leave(parser, false);
2815 if (!swcase.value) {
2816 ast_delete(switchnode);
2817 parseerror(parser, "expected expression for case");
2820 if (!OPTS_FLAG(RELAXED_SWITCH)) {
2821 if (!ast_istype(swcase.value, ast_value)) { /* || ((ast_value*)swcase.value)->cvq != CV_CONST) { */
2822 parseerror(parser, "case on non-constant values need to be explicitly enabled via -frelaxed-switch");
2828 else if (!strcmp(parser_tokval(parser), "default")) {
2829 swcase.value = NULL;
2830 if (!parser_next(parser)) {
2831 ast_delete(switchnode);
2832 parseerror(parser, "expected colon");
2837 ast_delete(switchnode);
2838 parseerror(parser, "expected 'case' or 'default'");
2842 /* Now the colon and body */
2843 if (parser->tok != ':') {
2844 if (swcase.value) ast_unref(swcase.value);
2845 ast_delete(switchnode);
2846 parseerror(parser, "expected colon");
2850 if (!parser_next(parser)) {
2851 if (swcase.value) ast_unref(swcase.value);
2852 ast_delete(switchnode);
2853 parseerror(parser, "expected statements or case");
2856 caseblock = ast_block_new(parser_ctx(parser));
2858 if (swcase.value) ast_unref(swcase.value);
2859 ast_delete(switchnode);
2862 swcase.code = (ast_expression*)caseblock;
2863 vec_push(switchnode->cases, swcase);
2865 ast_expression *expr;
2866 if (parser->tok == '}')
2868 if (parser->tok == TOKEN_KEYWORD) {
2869 if (!strcmp(parser_tokval(parser), "case") ||
2870 !strcmp(parser_tokval(parser), "default"))
2875 if (!parse_statement(parser, caseblock, &expr, true)) {
2876 ast_delete(switchnode);
2881 if (!ast_block_add_expr(caseblock, expr)) {
2882 ast_delete(switchnode);
2888 parser_leaveblock(parser);
2891 if (parser->tok != '}') {
2892 ast_delete(switchnode);
2893 parseerror(parser, "expected closing paren of case list");
2896 if (!parser_next(parser)) {
2897 ast_delete(switchnode);
2898 parseerror(parser, "parse error after switch");
2901 *out = (ast_expression*)switchnode;
2905 static bool parse_goto(parser_t *parser, ast_expression **out)
2910 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2911 parseerror(parser, "expected label name after `goto`");
2915 gt = ast_goto_new(parser_ctx(parser), parser_tokval(parser));
2917 for (i = 0; i < vec_size(parser->labels); ++i) {
2918 if (!strcmp(parser->labels[i]->name, parser_tokval(parser))) {
2919 ast_goto_set_label(gt, parser->labels[i]);
2923 if (i == vec_size(parser->labels))
2924 vec_push(parser->gotos, gt);
2926 if (!parser_next(parser) || parser->tok != ';') {
2927 parseerror(parser, "semicolon expected after goto label");
2930 if (!parser_next(parser)) {
2931 parseerror(parser, "parse error after goto");
2935 *out = (ast_expression*)gt;
2939 static bool parse_skipwhite(parser_t *parser)
2942 if (!parser_next(parser))
2944 } while (parser->tok == TOKEN_WHITE && parser->tok < TOKEN_ERROR);
2945 return parser->tok < TOKEN_ERROR;
2948 static bool parse_eol(parser_t *parser)
2950 if (!parse_skipwhite(parser))
2952 return parser->tok == TOKEN_EOL;
2955 static bool parse_pragma_do(parser_t *parser)
2957 if (!parser_next(parser) ||
2958 parser->tok != TOKEN_IDENT ||
2959 strcmp(parser_tokval(parser), "pragma"))
2961 parseerror(parser, "expected `pragma` keyword after `#`, got `%s`", parser_tokval(parser));
2964 if (!parse_skipwhite(parser) || parser->tok != TOKEN_IDENT) {
2965 parseerror(parser, "expected pragma, got `%s`", parser_tokval(parser));
2969 if (!strcmp(parser_tokval(parser), "noref")) {
2970 if (!parse_skipwhite(parser) || parser->tok != TOKEN_INTCONST) {
2971 parseerror(parser, "`noref` pragma requires an argument: 0 or 1");
2974 parser->noref = !!parser_token(parser)->constval.i;
2975 if (!parse_eol(parser)) {
2976 parseerror(parser, "parse error after `noref` pragma");
2982 (void)!parsewarning(parser, WARN_UNKNOWN_PRAGMAS, "ignoring #pragma %s", parser_tokval(parser));
2989 static bool parse_pragma(parser_t *parser)
2992 parser->lex->flags.preprocessing = true;
2993 parser->lex->flags.mergelines = true;
2994 rv = parse_pragma_do(parser);
2995 if (parser->tok != TOKEN_EOL) {
2996 parseerror(parser, "junk after pragma");
2999 parser->lex->flags.preprocessing = false;
3000 parser->lex->flags.mergelines = false;
3001 if (!parser_next(parser)) {
3002 parseerror(parser, "parse error after pragma");
3008 static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases)
3010 bool noref, is_static;
3012 uint32_t qflags = 0;
3013 ast_value *typevar = NULL;
3017 if (parser->tok == TOKEN_IDENT)
3018 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
3020 if (typevar || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
3022 /* local variable */
3024 parseerror(parser, "cannot declare a variable from here");
3027 if (opts.standard == COMPILER_QCC) {
3028 if (parsewarning(parser, WARN_EXTENSIONS, "missing 'local' keyword when declaring a local variable"))
3031 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0))
3035 else if (parse_qualifiers(parser, !!block, &cvq, &noref, &is_static, &qflags))
3037 if (cvq == CV_WRONG)
3039 return parse_variable(parser, block, true, cvq, NULL, noref, is_static, qflags);
3041 else if (parser->tok == TOKEN_KEYWORD)
3043 if (!strcmp(parser_tokval(parser), "__builtin_debug_printtype"))
3048 if (!parser_next(parser)) {
3049 parseerror(parser, "parse error after __builtin_debug_printtype");
3053 if (parser->tok == TOKEN_IDENT && (tdef = parser_find_typedef(parser, parser_tokval(parser), 0)))
3055 ast_type_to_string((ast_expression*)tdef, ty, sizeof(ty));
3056 con_out("__builtin_debug_printtype: `%s`=`%s`\n", tdef->name, ty);
3057 if (!parser_next(parser)) {
3058 parseerror(parser, "parse error after __builtin_debug_printtype typename argument");
3064 if (!parse_statement(parser, block, out, allow_cases))
3067 con_out("__builtin_debug_printtype: got no output node\n");
3070 ast_type_to_string(*out, ty, sizeof(ty));
3071 con_out("__builtin_debug_printtype: `%s`\n", ty);
3076 else if (!strcmp(parser_tokval(parser), "return"))
3078 return parse_return(parser, block, out);
3080 else if (!strcmp(parser_tokval(parser), "if"))
3082 return parse_if(parser, block, out);
3084 else if (!strcmp(parser_tokval(parser), "while"))
3086 return parse_while(parser, block, out);
3088 else if (!strcmp(parser_tokval(parser), "do"))
3090 return parse_dowhile(parser, block, out);
3092 else if (!strcmp(parser_tokval(parser), "for"))
3094 if (opts.standard == COMPILER_QCC) {
3095 if (parsewarning(parser, WARN_EXTENSIONS, "for loops are not recognized in the original Quake C standard, to enable try an alternate standard --std=?"))
3098 return parse_for(parser, block, out);
3100 else if (!strcmp(parser_tokval(parser), "break"))
3102 return parse_break_continue(parser, block, out, false);
3104 else if (!strcmp(parser_tokval(parser), "continue"))
3106 return parse_break_continue(parser, block, out, true);
3108 else if (!strcmp(parser_tokval(parser), "switch"))
3110 return parse_switch(parser, block, out);
3112 else if (!strcmp(parser_tokval(parser), "case") ||
3113 !strcmp(parser_tokval(parser), "default"))
3116 parseerror(parser, "unexpected 'case' label");
3121 else if (!strcmp(parser_tokval(parser), "goto"))
3123 return parse_goto(parser, out);
3125 else if (!strcmp(parser_tokval(parser), "typedef"))
3127 if (!parser_next(parser)) {
3128 parseerror(parser, "expected type definition after 'typedef'");
3131 return parse_typedef(parser);
3133 parseerror(parser, "Unexpected keyword");
3136 else if (parser->tok == '{')
3139 inner = parse_block(parser);
3142 *out = (ast_expression*)inner;
3145 else if (parser->tok == ':')
3149 if (!parser_next(parser)) {
3150 parseerror(parser, "expected label name");
3153 if (parser->tok != TOKEN_IDENT) {
3154 parseerror(parser, "label must be an identifier");
3157 label = ast_label_new(parser_ctx(parser), parser_tokval(parser));
3160 vec_push(parser->labels, label);
3161 *out = (ast_expression*)label;
3162 if (!parser_next(parser)) {
3163 parseerror(parser, "parse error after label");
3166 for (i = 0; i < vec_size(parser->gotos); ++i) {
3167 if (!strcmp(parser->gotos[i]->name, label->name)) {
3168 ast_goto_set_label(parser->gotos[i], label);
3169 vec_remove(parser->gotos, i, 1);
3175 else if (parser->tok == ';')
3177 if (!parser_next(parser)) {
3178 parseerror(parser, "parse error after empty statement");
3185 ast_expression *exp = parse_expression(parser, false);
3189 if (!ast_side_effects(exp)) {
3190 if (genwarning(ast_ctx(exp), WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
3197 static bool parse_block_into(parser_t *parser, ast_block *block)
3201 parser_enterblock(parser);
3203 if (!parser_next(parser)) { /* skip the '{' */
3204 parseerror(parser, "expected function body");
3208 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
3210 ast_expression *expr = NULL;
3211 if (parser->tok == '}')
3214 if (!parse_statement(parser, block, &expr, false)) {
3215 /* parseerror(parser, "parse error"); */
3221 if (!ast_block_add_expr(block, expr)) {
3228 if (parser->tok != '}') {
3231 (void)parser_next(parser);
3235 if (!parser_leaveblock(parser))
3237 return retval && !!block;
3240 static ast_block* parse_block(parser_t *parser)
3243 block = ast_block_new(parser_ctx(parser));
3246 if (!parse_block_into(parser, block)) {
3247 ast_block_delete(block);
3253 static bool parse_statement_or_block(parser_t *parser, ast_expression **out)
3255 if (parser->tok == '{') {
3256 *out = (ast_expression*)parse_block(parser);
3259 return parse_statement(parser, NULL, out, false);
3262 static bool create_vector_members(ast_value *var, ast_member **me)
3265 size_t len = strlen(var->name);
3267 for (i = 0; i < 3; ++i) {
3268 char *name = (char*)mem_a(len+3);
3269 memcpy(name, var->name, len);
3271 name[len+1] = 'x'+i;
3273 me[i] = ast_member_new(ast_ctx(var), (ast_expression*)var, i, name);
3282 do { ast_member_delete(me[--i]); } while(i);
3286 static bool parse_function_body(parser_t *parser, ast_value *var)
3288 ast_block *block = NULL;
3293 ast_expression *framenum = NULL;
3294 ast_expression *nextthink = NULL;
3295 /* None of the following have to be deleted */
3296 ast_expression *fld_think = NULL, *fld_nextthink = NULL, *fld_frame = NULL;
3297 ast_expression *gbl_time = NULL, *gbl_self = NULL;
3298 bool has_frame_think;
3302 has_frame_think = false;
3303 old = parser->function;
3305 if (vec_size(parser->gotos) || vec_size(parser->labels)) {
3306 parseerror(parser, "gotos/labels leaking");
3310 if (var->expression.flags & AST_FLAG_VARIADIC) {
3311 if (parsewarning(parser, WARN_VARIADIC_FUNCTION,
3312 "variadic function with implementation will not be able to access additional parameters"))
3318 if (parser->tok == '[') {
3319 /* got a frame definition: [ framenum, nextthink ]
3320 * this translates to:
3321 * self.frame = framenum;
3322 * self.nextthink = time + 0.1;
3323 * self.think = nextthink;
3327 fld_think = parser_find_field(parser, "think");
3328 fld_nextthink = parser_find_field(parser, "nextthink");
3329 fld_frame = parser_find_field(parser, "frame");
3330 if (!fld_think || !fld_nextthink || !fld_frame) {
3331 parseerror(parser, "cannot use [frame,think] notation without the required fields");
3332 parseerror(parser, "please declare the following entityfields: `frame`, `think`, `nextthink`");
3335 gbl_time = parser_find_global(parser, "time");
3336 gbl_self = parser_find_global(parser, "self");
3337 if (!gbl_time || !gbl_self) {
3338 parseerror(parser, "cannot use [frame,think] notation without the required globals");
3339 parseerror(parser, "please declare the following globals: `time`, `self`");
3343 if (!parser_next(parser))
3346 framenum = parse_expression_leave(parser, true);
3348 parseerror(parser, "expected a framenumber constant in[frame,think] notation");
3351 if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->hasvalue) {
3352 ast_unref(framenum);
3353 parseerror(parser, "framenumber in [frame,think] notation must be a constant");
3357 if (parser->tok != ',') {
3358 ast_unref(framenum);
3359 parseerror(parser, "expected comma after frame number in [frame,think] notation");
3360 parseerror(parser, "Got a %i\n", parser->tok);
3364 if (!parser_next(parser)) {
3365 ast_unref(framenum);
3369 if (parser->tok == TOKEN_IDENT && !parser_find_var(parser, parser_tokval(parser)))
3371 /* qc allows the use of not-yet-declared functions here
3372 * - this automatically creates a prototype */
3373 ast_value *thinkfunc;
3374 ast_expression *functype = fld_think->expression.next;
3376 thinkfunc = ast_value_new(parser_ctx(parser), parser_tokval(parser), functype->expression.vtype);
3377 if (!thinkfunc || !ast_type_adopt(thinkfunc, functype)) {
3378 ast_unref(framenum);
3379 parseerror(parser, "failed to create implicit prototype for `%s`", parser_tokval(parser));
3383 if (!parser_next(parser)) {
3384 ast_unref(framenum);
3385 ast_delete(thinkfunc);
3389 vec_push(parser->globals, (ast_expression*)thinkfunc);
3390 util_htset(parser->htglobals, thinkfunc->name, thinkfunc);
3391 nextthink = (ast_expression*)thinkfunc;
3394 nextthink = parse_expression_leave(parser, true);
3396 ast_unref(framenum);
3397 parseerror(parser, "expected a think-function in [frame,think] notation");
3402 if (!ast_istype(nextthink, ast_value)) {
3403 parseerror(parser, "think-function in [frame,think] notation must be a constant");
3407 if (retval && parser->tok != ']') {
3408 parseerror(parser, "expected closing `]` for [frame,think] notation");
3412 if (retval && !parser_next(parser)) {
3416 if (retval && parser->tok != '{') {
3417 parseerror(parser, "a function body has to be declared after a [frame,think] declaration");
3422 ast_unref(nextthink);
3423 ast_unref(framenum);
3427 has_frame_think = true;
3430 block = ast_block_new(parser_ctx(parser));
3432 parseerror(parser, "failed to allocate block");
3433 if (has_frame_think) {
3434 ast_unref(nextthink);
3435 ast_unref(framenum);
3440 if (has_frame_think) {
3442 ast_expression *self_frame;
3443 ast_expression *self_nextthink;
3444 ast_expression *self_think;
3445 ast_expression *time_plus_1;
3446 ast_store *store_frame;
3447 ast_store *store_nextthink;
3448 ast_store *store_think;
3450 ctx = parser_ctx(parser);
3451 self_frame = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_frame);
3452 self_nextthink = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_nextthink);
3453 self_think = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_think);
3455 time_plus_1 = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F,
3456 gbl_time, (ast_expression*)parser_const_float(parser, 0.1));
3458 if (!self_frame || !self_nextthink || !self_think || !time_plus_1) {
3459 if (self_frame) ast_delete(self_frame);
3460 if (self_nextthink) ast_delete(self_nextthink);
3461 if (self_think) ast_delete(self_think);
3462 if (time_plus_1) ast_delete(time_plus_1);
3468 store_frame = ast_store_new(ctx, INSTR_STOREP_F, self_frame, framenum);
3469 store_nextthink = ast_store_new(ctx, INSTR_STOREP_F, self_nextthink, time_plus_1);
3470 store_think = ast_store_new(ctx, INSTR_STOREP_FNC, self_think, nextthink);
3473 ast_delete(self_frame);
3476 if (!store_nextthink) {
3477 ast_delete(self_nextthink);
3481 ast_delete(self_think);
3485 if (store_frame) ast_delete(store_frame);
3486 if (store_nextthink) ast_delete(store_nextthink);
3487 if (store_think) ast_delete(store_think);
3490 if (!ast_block_add_expr(block, (ast_expression*)store_frame) ||
3491 !ast_block_add_expr(block, (ast_expression*)store_nextthink) ||
3492 !ast_block_add_expr(block, (ast_expression*)store_think))
3499 parseerror(parser, "failed to generate code for [frame,think]");
3500 ast_unref(nextthink);
3501 ast_unref(framenum);
3507 parser_enterblock(parser);
3509 for (parami = 0; parami < vec_size(var->expression.params); ++parami) {
3511 ast_value *param = var->expression.params[parami];
3514 if (param->expression.vtype != TYPE_VECTOR &&
3515 (param->expression.vtype != TYPE_FIELD ||
3516 param->expression.next->expression.vtype != TYPE_VECTOR))
3521 if (!create_vector_members(param, me)) {
3522 ast_block_delete(block);
3526 for (e = 0; e < 3; ++e) {
3527 parser_addlocal(parser, me[e]->name, (ast_expression*)me[e]);
3528 ast_block_collect(block, (ast_expression*)me[e]);
3532 func = ast_function_new(ast_ctx(var), var->name, var);
3534 parseerror(parser, "failed to allocate function for `%s`", var->name);
3535 ast_block_delete(block);
3538 vec_push(parser->functions, func);
3540 parser->function = func;
3541 if (!parse_block_into(parser, block)) {
3542 ast_block_delete(block);
3546 vec_push(func->blocks, block);
3548 parser->function = old;
3549 if (!parser_leaveblock(parser))
3551 if (vec_size(parser->variables) != PARSER_HT_LOCALS) {
3552 parseerror(parser, "internal error: local scopes left");
3556 if (parser->tok == ';')
3557 return parser_next(parser);
3558 else if (opts.standard == COMPILER_QCC)
3559 parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)");
3563 vec_pop(parser->functions);
3564 ast_function_delete(func);
3565 var->constval.vfunc = NULL;
3568 (void)!parser_leaveblock(parser);
3569 parser->function = old;
3573 static ast_expression *array_accessor_split(
3578 ast_expression *left,
3579 ast_expression *right
3585 lex_ctx ctx = ast_ctx(array);
3587 if (!left || !right) {
3588 if (left) ast_delete(left);
3589 if (right) ast_delete(right);
3593 cmp = ast_binary_new(ctx, INSTR_LT,
3594 (ast_expression*)index,
3595 (ast_expression*)parser_const_float(parser, middle));
3599 parseerror(parser, "internal error: failed to create comparison for array setter");
3603 ifthen = ast_ifthen_new(ctx, (ast_expression*)cmp, left, right);
3605 ast_delete(cmp); /* will delete left and right */
3606 parseerror(parser, "internal error: failed to create conditional jump for array setter");
3610 return (ast_expression*)ifthen;
3613 static ast_expression *array_setter_node(parser_t *parser, ast_value *array, ast_value *index, ast_value *value, size_t from, size_t afterend)
3615 lex_ctx ctx = ast_ctx(array);
3617 if (from+1 == afterend) {
3618 /* set this value */
3621 ast_array_index *subscript;
3623 int assignop = type_store_instr[value->expression.vtype];
3625 if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR)
3626 assignop = INSTR_STORE_V;
3628 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
3632 st = ast_store_new(ctx, assignop, (ast_expression*)subscript, (ast_expression*)value);
3634 ast_delete(subscript);
3638 block = ast_block_new(ctx);
3644 if (!ast_block_add_expr(block, (ast_expression*)st)) {
3649 ret = ast_return_new(ctx, NULL);
3655 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
3660 return (ast_expression*)block;
3662 ast_expression *left, *right;
3663 size_t diff = afterend - from;
3664 size_t middle = from + diff/2;
3665 left = array_setter_node(parser, array, index, value, from, middle);
3666 right = array_setter_node(parser, array, index, value, middle, afterend);
3667 return array_accessor_split(parser, array, index, middle, left, right);
3671 static ast_expression *array_field_setter_node(
3680 lex_ctx ctx = ast_ctx(array);
3682 if (from+1 == afterend) {
3683 /* set this value */
3686 ast_entfield *entfield;
3687 ast_array_index *subscript;
3689 int assignop = type_storep_instr[value->expression.vtype];
3691 if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR)
3692 assignop = INSTR_STOREP_V;
3694 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
3698 entfield = ast_entfield_new_force(ctx,
3699 (ast_expression*)entity,
3700 (ast_expression*)subscript,
3701 (ast_expression*)subscript);
3703 ast_delete(subscript);
3707 st = ast_store_new(ctx, assignop, (ast_expression*)entfield, (ast_expression*)value);
3709 ast_delete(entfield);
3713 block = ast_block_new(ctx);
3719 if (!ast_block_add_expr(block, (ast_expression*)st)) {
3724 ret = ast_return_new(ctx, NULL);
3730 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
3735 return (ast_expression*)block;
3737 ast_expression *left, *right;
3738 size_t diff = afterend - from;
3739 size_t middle = from + diff/2;
3740 left = array_field_setter_node(parser, array, entity, index, value, from, middle);
3741 right = array_field_setter_node(parser, array, entity, index, value, middle, afterend);
3742 return array_accessor_split(parser, array, index, middle, left, right);
3746 static ast_expression *array_getter_node(parser_t *parser, ast_value *array, ast_value *index, size_t from, size_t afterend)
3748 lex_ctx ctx = ast_ctx(array);
3750 if (from+1 == afterend) {
3752 ast_array_index *subscript;
3754 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
3758 ret = ast_return_new(ctx, (ast_expression*)subscript);
3760 ast_delete(subscript);
3764 return (ast_expression*)ret;
3766 ast_expression *left, *right;
3767 size_t diff = afterend - from;
3768 size_t middle = from + diff/2;
3769 left = array_getter_node(parser, array, index, from, middle);
3770 right = array_getter_node(parser, array, index, middle, afterend);
3771 return array_accessor_split(parser, array, index, middle, left, right);
3775 static bool parser_create_array_accessor(parser_t *parser, ast_value *array, const char *funcname, ast_value **out)
3777 ast_function *func = NULL;
3778 ast_value *fval = NULL;
3779 ast_block *body = NULL;
3781 fval = ast_value_new(ast_ctx(array), funcname, TYPE_FUNCTION);
3783 parseerror(parser, "failed to create accessor function value");
3787 func = ast_function_new(ast_ctx(array), funcname, fval);
3790 parseerror(parser, "failed to create accessor function node");
3794 body = ast_block_new(ast_ctx(array));
3796 parseerror(parser, "failed to create block for array accessor");
3802 vec_push(func->blocks, body);
3805 vec_push(parser->accessors, fval);
3810 static bool parser_create_array_setter(parser_t *parser, ast_value *array, const char *funcname)
3812 ast_expression *root = NULL;
3813 ast_value *index = NULL;
3814 ast_value *value = NULL;
3818 if (!ast_istype(array->expression.next, ast_value)) {
3819 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
3823 if (!parser_create_array_accessor(parser, array, funcname, &fval))
3825 func = fval->constval.vfunc;
3826 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
3828 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
3829 value = ast_value_copy((ast_value*)array->expression.next);
3831 if (!index || !value) {
3832 parseerror(parser, "failed to create locals for array accessor");
3835 (void)!ast_value_set_name(value, "value"); /* not important */
3836 vec_push(fval->expression.params, index);
3837 vec_push(fval->expression.params, value);
3839 root = array_setter_node(parser, array, index, value, 0, array->expression.count);
3841 parseerror(parser, "failed to build accessor search tree");
3845 array->setter = fval;
3846 return ast_block_add_expr(func->blocks[0], root);
3848 if (index) ast_delete(index);
3849 if (value) ast_delete(value);
3850 if (root) ast_delete(root);
3856 static bool parser_create_array_field_setter(parser_t *parser, ast_value *array, const char *funcname)
3858 ast_expression *root = NULL;
3859 ast_value *entity = NULL;
3860 ast_value *index = NULL;
3861 ast_value *value = NULL;
3865 if (!ast_istype(array->expression.next, ast_value)) {
3866 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
3870 if (!parser_create_array_accessor(parser, array, funcname, &fval))
3872 func = fval->constval.vfunc;
3873 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
3875 entity = ast_value_new(ast_ctx(array), "entity", TYPE_ENTITY);
3876 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
3877 value = ast_value_copy((ast_value*)array->expression.next);
3878 if (!entity || !index || !value) {
3879 parseerror(parser, "failed to create locals for array accessor");
3882 (void)!ast_value_set_name(value, "value"); /* not important */
3883 vec_push(fval->expression.params, entity);
3884 vec_push(fval->expression.params, index);
3885 vec_push(fval->expression.params, value);
3887 root = array_field_setter_node(parser, array, entity, index, value, 0, array->expression.count);
3889 parseerror(parser, "failed to build accessor search tree");
3893 array->setter = fval;
3894 return ast_block_add_expr(func->blocks[0], root);
3896 if (entity) ast_delete(entity);
3897 if (index) ast_delete(index);
3898 if (value) ast_delete(value);
3899 if (root) ast_delete(root);
3905 static bool parser_create_array_getter(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
3907 ast_expression *root = NULL;
3908 ast_value *index = NULL;
3912 /* NOTE: checking array->expression.next rather than elemtype since
3913 * for fields elemtype is a temporary fieldtype.
3915 if (!ast_istype(array->expression.next, ast_value)) {
3916 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
3920 if (!parser_create_array_accessor(parser, array, funcname, &fval))
3922 func = fval->constval.vfunc;
3923 fval->expression.next = ast_type_copy(ast_ctx(array), elemtype);
3925 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
3928 parseerror(parser, "failed to create locals for array accessor");
3931 vec_push(fval->expression.params, index);
3933 root = array_getter_node(parser, array, index, 0, array->expression.count);
3935 parseerror(parser, "failed to build accessor search tree");
3939 array->getter = fval;
3940 return ast_block_add_expr(func->blocks[0], root);
3942 if (index) ast_delete(index);
3943 if (root) ast_delete(root);
3949 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
3950 static ast_value *parse_parameter_list(parser_t *parser, ast_value *var)
3958 bool variadic = false;
3960 ctx = parser_ctx(parser);
3962 /* for the sake of less code we parse-in in this function */
3963 if (!parser_next(parser)) {
3964 parseerror(parser, "expected parameter list");
3970 /* parse variables until we hit a closing paren */
3971 while (parser->tok != ')') {
3973 /* there must be commas between them */
3974 if (parser->tok != ',') {
3975 parseerror(parser, "expected comma or end of parameter list");
3978 if (!parser_next(parser)) {
3979 parseerror(parser, "expected parameter");
3985 if (parser->tok == TOKEN_DOTS) {
3986 /* '...' indicates a varargs function */
3988 if (!parser_next(parser)) {
3989 parseerror(parser, "expected parameter");
3992 if (parser->tok != ')') {
3993 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
3999 /* for anything else just parse a typename */
4000 param = parse_typename(parser, NULL, NULL);
4003 vec_push(params, param);
4004 if (param->expression.vtype >= TYPE_VARIANT) {
4005 char tname[1024]; /* typename is reserved in C++ */
4006 ast_type_to_string((ast_expression*)param, tname, sizeof(tname));
4007 parseerror(parser, "type not supported as part of a parameter list: %s", tname);
4013 if (vec_size(params) == 1 && params[0]->expression.vtype == TYPE_VOID)
4017 if (vec_size(params) > 8 && opts.standard == COMPILER_QCC)
4018 (void)!parsewarning(parser, WARN_EXTENSIONS, "more than 8 parameters are not supported by this standard");
4021 if (!parser_next(parser)) {
4022 parseerror(parser, "parse error after typename");
4026 /* now turn 'var' into a function type */
4027 fval = ast_value_new(ctx, "<type()>", TYPE_FUNCTION);
4028 fval->expression.next = (ast_expression*)var;
4030 fval->expression.flags |= AST_FLAG_VARIADIC;
4033 var->expression.params = params;
4040 for (i = 0; i < vec_size(params); ++i)
4041 ast_delete(params[i]);
4046 static ast_value *parse_arraysize(parser_t *parser, ast_value *var)
4048 ast_expression *cexp;
4049 ast_value *cval, *tmp;
4052 ctx = parser_ctx(parser);
4054 if (!parser_next(parser)) {
4056 parseerror(parser, "expected array-size");
4060 cexp = parse_expression_leave(parser, true);
4062 if (!cexp || !ast_istype(cexp, ast_value)) {
4066 parseerror(parser, "expected array-size as constant positive integer");
4069 cval = (ast_value*)cexp;
4071 tmp = ast_value_new(ctx, "<type[]>", TYPE_ARRAY);
4072 tmp->expression.next = (ast_expression*)var;
4075 if (cval->expression.vtype == TYPE_INTEGER)
4076 tmp->expression.count = cval->constval.vint;
4077 else if (cval->expression.vtype == TYPE_FLOAT)
4078 tmp->expression.count = cval->constval.vfloat;
4082 parseerror(parser, "array-size must be a positive integer constant");
4087 if (parser->tok != ']') {
4089 parseerror(parser, "expected ']' after array-size");
4092 if (!parser_next(parser)) {
4094 parseerror(parser, "error after parsing array size");
4100 /* Parse a complete typename.
4101 * for single-variables (ie. function parameters or typedefs) storebase should be NULL
4102 * but when parsing variables separated by comma
4103 * 'storebase' should point to where the base-type should be kept.
4104 * The base type makes up every bit of type information which comes *before* the
4107 * The following will be parsed in its entirety:
4109 * The 'basetype' in this case is 'void()'
4110 * and if there's a comma after it, say:
4112 * then the type-information 'void()' can be stored in 'storebase'
4114 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef)
4116 ast_value *var, *tmp;
4119 const char *name = NULL;
4120 bool isfield = false;
4121 bool wasarray = false;
4122 size_t morefields = 0;
4124 ctx = parser_ctx(parser);
4126 /* types may start with a dot */
4127 if (parser->tok == '.') {
4129 /* if we parsed a dot we need a typename now */
4130 if (!parser_next(parser)) {
4131 parseerror(parser, "expected typename for field definition");
4135 /* Further dots are handled seperately because they won't be part of the
4138 while (parser->tok == '.') {
4140 if (!parser_next(parser)) {
4141 parseerror(parser, "expected typename for field definition");
4146 if (parser->tok == TOKEN_IDENT)
4147 cached_typedef = parser_find_typedef(parser, parser_tokval(parser), 0);
4148 if (!cached_typedef && parser->tok != TOKEN_TYPENAME) {
4149 parseerror(parser, "expected typename");
4153 /* generate the basic type value */
4154 if (cached_typedef) {
4155 var = ast_value_copy(cached_typedef);
4156 ast_value_set_name(var, "<type(from_def)>");
4158 var = ast_value_new(ctx, "<type>", parser_token(parser)->constval.t);
4160 for (; morefields; --morefields) {
4161 tmp = ast_value_new(ctx, "<.type>", TYPE_FIELD);
4162 tmp->expression.next = (ast_expression*)var;
4166 /* do not yet turn into a field - remember:
4167 * .void() foo; is a field too
4168 * .void()() foo; is a function
4172 if (!parser_next(parser)) {
4174 parseerror(parser, "parse error after typename");
4178 /* an opening paren now starts the parameter-list of a function
4179 * this is where original-QC has parameter lists.
4180 * We allow a single parameter list here.
4181 * Much like fteqcc we don't allow `float()() x`
4183 if (parser->tok == '(') {
4184 var = parse_parameter_list(parser, var);
4189 /* store the base if requested */
4191 *storebase = ast_value_copy(var);
4193 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
4194 tmp->expression.next = (ast_expression*)*storebase;
4199 /* there may be a name now */
4200 if (parser->tok == TOKEN_IDENT) {
4201 name = util_strdup(parser_tokval(parser));
4203 if (!parser_next(parser)) {
4205 parseerror(parser, "error after variable or field declaration");
4210 /* now this may be an array */
4211 if (parser->tok == '[') {
4213 var = parse_arraysize(parser, var);
4218 /* This is the point where we can turn it into a field */
4220 /* turn it into a field if desired */
4221 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
4222 tmp->expression.next = (ast_expression*)var;
4226 /* now there may be function parens again */
4227 if (parser->tok == '(' && opts.standard == COMPILER_QCC)
4228 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4229 if (parser->tok == '(' && wasarray)
4230 parseerror(parser, "arrays as part of a return type is not supported");
4231 while (parser->tok == '(') {
4232 var = parse_parameter_list(parser, var);
4241 /* finally name it */
4243 if (!ast_value_set_name(var, name)) {
4245 parseerror(parser, "internal error: failed to set name");
4248 /* free the name, ast_value_set_name duplicates */
4255 static bool parse_typedef(parser_t *parser)
4257 ast_value *typevar, *oldtype;
4258 ast_expression *old;
4260 typevar = parse_typename(parser, NULL, NULL);
4265 if ( (old = parser_find_var(parser, typevar->name)) ) {
4266 parseerror(parser, "cannot define a type with the same name as a variable: %s\n"
4267 " -> `%s` has been declared here: %s:%i",
4268 typevar->name, ast_ctx(old).file, ast_ctx(old).line);
4269 ast_delete(typevar);
4273 if ( (oldtype = parser_find_typedef(parser, typevar->name, vec_last(parser->_blocktypedefs))) ) {
4274 parseerror(parser, "type `%s` has already been declared here: %s:%i",
4275 typevar->name, ast_ctx(oldtype).file, ast_ctx(oldtype).line);
4276 ast_delete(typevar);
4280 vec_push(parser->_typedefs, typevar);
4281 util_htset(vec_last(parser->typedefs), typevar->name, typevar);
4283 if (parser->tok != ';') {
4284 parseerror(parser, "expected semicolon after typedef");
4287 if (!parser_next(parser)) {
4288 parseerror(parser, "parse error after typedef");
4295 static const char *cvq_to_str(int cvq) {
4297 case CV_NONE: return "none";
4298 case CV_VAR: return "`var`";
4299 case CV_CONST: return "`const`";
4300 default: return "<INVALID>";
4304 static bool parser_check_qualifiers(parser_t *parser, const ast_value *var, const ast_value *proto)
4307 if (proto->cvq != var->cvq) {
4308 if (!(proto->cvq == CV_CONST && var->cvq == CV_NONE &&
4309 !OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
4310 parser->tok == '='))
4312 return !parsewarning(parser, WARN_DIFFERENT_QUALIFIERS,
4313 "`%s` declared with different qualifiers: %s\n"
4314 " -> previous declaration here: %s:%i uses %s",
4315 var->name, cvq_to_str(var->cvq),
4316 ast_ctx(proto).file, ast_ctx(proto).line,
4317 cvq_to_str(proto->cvq));
4320 av = (var ->expression.flags & AST_FLAG_NORETURN);
4321 ao = (proto->expression.flags & AST_FLAG_NORETURN);
4323 return !parsewarning(parser, WARN_DIFFERENT_ATTRIBUTES,
4324 "`%s` declared with different attributes%s\n"
4325 " -> previous declaration here: %s:%i",
4326 var->name, (av ? ": noreturn" : ""),
4327 ast_ctx(proto).file, ast_ctx(proto).line,
4328 (ao ? ": noreturn" : ""));
4333 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)
4337 ast_expression *old;
4341 ast_value *basetype = NULL;
4343 bool isparam = false;
4344 bool isvector = false;
4345 bool cleanvar = true;
4346 bool wasarray = false;
4350 if (!localblock && is_static)
4351 parseerror(parser, "`static` qualifier is not supported in global scope");
4353 /* get the first complete variable */
4354 var = parse_typename(parser, &basetype, cached_typedef);
4357 ast_delete(basetype);
4365 /* Part 0: finish the type */
4366 if (parser->tok == '(') {
4367 if (opts.standard == COMPILER_QCC)
4368 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4369 var = parse_parameter_list(parser, var);
4375 /* we only allow 1-dimensional arrays */
4376 if (parser->tok == '[') {
4378 var = parse_arraysize(parser, var);
4384 if (parser->tok == '(' && wasarray) {
4385 parseerror(parser, "arrays as part of a return type is not supported");
4386 /* we'll still parse the type completely for now */
4388 /* for functions returning functions */
4389 while (parser->tok == '(') {
4390 if (opts.standard == COMPILER_QCC)
4391 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4392 var = parse_parameter_list(parser, var);
4399 var->cvq = qualifier;
4400 var->expression.flags |= qflags;
4403 * check for validity: (end_sys_..., multiple-definitions, prototypes, ...)
4404 * Also: if there was a prototype, `var` will be deleted and set to `proto` which
4405 * is then filled with the previous definition and the parameter-names replaced.
4407 if (!strcmp(var->name, "nil")) {
4408 if (OPTS_FLAG(UNTYPED_NIL)) {
4409 if (!localblock || !OPTS_FLAG(PERMISSIVE))
4410 parseerror(parser, "name `nil` not allowed (try -fpermissive)");
4412 (void)!parsewarning(parser, WARN_RESERVED_NAMES, "variable name `nil` is reserved");
4415 /* Deal with end_sys_ vars */
4417 if (!strcmp(var->name, "end_sys_globals")) {
4419 parser->crc_globals = vec_size(parser->globals);
4422 else if (!strcmp(var->name, "end_sys_fields")) {
4424 parser->crc_fields = vec_size(parser->fields);
4427 if (was_end && var->expression.vtype == TYPE_FIELD) {
4428 if (parsewarning(parser, WARN_END_SYS_FIELDS,
4429 "global '%s' hint should not be a field",
4430 parser_tokval(parser)))
4437 if (!nofields && var->expression.vtype == TYPE_FIELD)
4439 /* deal with field declarations */
4440 old = parser_find_field(parser, var->name);
4442 if (parsewarning(parser, WARN_FIELD_REDECLARED, "field `%s` already declared here: %s:%i",
4443 var->name, ast_ctx(old).file, (int)ast_ctx(old).line))
4452 parseerror(parser, "field `%s` already declared here: %s:%i",
4453 var->name, ast_ctx(old).file, ast_ctx(old).line);
4458 if (opts.standard == COMPILER_QCC &&
4459 (old = parser_find_global(parser, var->name)))
4461 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
4462 parseerror(parser, "field `%s` already declared here: %s:%i",
4463 var->name, ast_ctx(old).file, ast_ctx(old).line);
4470 /* deal with other globals */
4471 old = parser_find_global(parser, var->name);
4472 if (old && var->expression.vtype == TYPE_FUNCTION && old->expression.vtype == TYPE_FUNCTION)
4474 /* This is a function which had a prototype */
4475 if (!ast_istype(old, ast_value)) {
4476 parseerror(parser, "internal error: prototype is not an ast_value");
4480 proto = (ast_value*)old;
4481 if (!ast_compare_type((ast_expression*)proto, (ast_expression*)var)) {
4482 parseerror(parser, "conflicting types for `%s`, previous declaration was here: %s:%i",
4484 ast_ctx(proto).file, ast_ctx(proto).line);
4488 /* we need the new parameter-names */
4489 for (i = 0; i < vec_size(proto->expression.params); ++i)
4490 ast_value_set_name(proto->expression.params[i], var->expression.params[i]->name);
4491 if (!parser_check_qualifiers(parser, var, proto)) {
4496 proto->expression.flags |= var->expression.flags;
4504 if (opts.standard == COMPILER_GMQCC) {
4505 parseerror(parser, "global `%s` already declared here: %s:%i",
4506 var->name, ast_ctx(old).file, ast_ctx(old).line);
4510 if (parsewarning(parser, WARN_DOUBLE_DECLARATION,
4511 "global `%s` already declared here: %s:%i",
4512 var->name, ast_ctx(old).file, ast_ctx(old).line))
4517 proto = (ast_value*)old;
4518 if (!ast_istype(old, ast_value)) {
4519 parseerror(parser, "internal error: not an ast_value");
4524 if (!parser_check_qualifiers(parser, var, proto)) {
4529 proto->expression.flags |= var->expression.flags;
4534 if (opts.standard == COMPILER_QCC &&
4535 (old = parser_find_field(parser, var->name)))
4537 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
4538 parseerror(parser, "global `%s` already declared here: %s:%i",
4539 var->name, ast_ctx(old).file, ast_ctx(old).line);
4546 else /* it's not a global */
4548 old = parser_find_local(parser, var->name, vec_size(parser->variables)-1, &isparam);
4549 if (old && !isparam) {
4550 parseerror(parser, "local `%s` already declared here: %s:%i",
4551 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
4555 old = parser_find_local(parser, var->name, 0, &isparam);
4556 if (old && isparam) {
4557 if (parsewarning(parser, WARN_LOCAL_SHADOWS,
4558 "local `%s` is shadowing a parameter", var->name))
4560 parseerror(parser, "local `%s` already declared here: %s:%i",
4561 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
4565 if (opts.standard != COMPILER_GMQCC) {
4573 /* in a noref section we simply bump the usecount */
4574 if (noref || parser->noref)
4578 * Create the global/local, and deal with vector types.
4581 if (var->expression.vtype == TYPE_VECTOR)
4583 else if (var->expression.vtype == TYPE_FIELD &&
4584 var->expression.next->expression.vtype == TYPE_VECTOR)
4588 if (!create_vector_members(var, me)) {
4595 /* deal with global variables, fields, functions */
4596 if (!nofields && var->expression.vtype == TYPE_FIELD && parser->tok != '=') {
4597 var->isfield = true;
4598 vec_push(parser->fields, (ast_expression*)var);
4599 util_htset(parser->htfields, var->name, var);
4601 for (i = 0; i < 3; ++i) {
4602 vec_push(parser->fields, (ast_expression*)me[i]);
4603 util_htset(parser->htfields, me[i]->name, me[i]);
4608 vec_push(parser->globals, (ast_expression*)var);
4609 util_htset(parser->htglobals, var->name, var);
4611 for (i = 0; i < 3; ++i) {
4612 vec_push(parser->globals, (ast_expression*)me[i]);
4613 util_htset(parser->htglobals, me[i]->name, me[i]);
4619 /* a static adds itself to be generated like any other global
4620 * but is added to the local namespace instead
4622 char *defname = NULL;
4623 size_t prefix_len, ln;
4625 ln = strlen(parser->function->name);
4626 vec_append(defname, ln, parser->function->name);
4628 vec_append(defname, 2, "::");
4629 /* remember the length up to here */
4630 prefix_len = vec_size(defname);
4632 /* Add it to the local scope */
4633 util_htset(vec_last(parser->variables), var->name, (void*)var);
4634 /* now rename the global */
4635 ln = strlen(var->name);
4636 vec_append(defname, ln, var->name);
4637 ast_value_set_name(var, defname);
4639 /* push it to the to-be-generated globals */
4640 vec_push(parser->globals, (ast_expression*)var);
4642 /* same game for the vector members */
4644 for (i = 0; i < 3; ++i) {
4645 util_htset(vec_last(parser->variables), me[i]->name, (void*)(me[i]));
4647 vec_shrinkto(defname, prefix_len);
4648 ln = strlen(me[i]->name);
4649 vec_append(defname, ln, me[i]->name);
4650 ast_member_set_name(me[i], defname);
4652 vec_push(parser->globals, (ast_expression*)me[i]);
4657 vec_push(localblock->locals, var);
4658 parser_addlocal(parser, var->name, (ast_expression*)var);
4660 for (i = 0; i < 3; ++i) {
4661 parser_addlocal(parser, me[i]->name, (ast_expression*)me[i]);
4662 ast_block_collect(localblock, (ast_expression*)me[i]);
4668 me[0] = me[1] = me[2] = NULL;
4673 if (var->expression.vtype == TYPE_ARRAY) {
4675 snprintf(name, sizeof(name), "%s##SET", var->name);
4676 if (!parser_create_array_setter(parser, var, name))
4678 snprintf(name, sizeof(name), "%s##GET", var->name);
4679 if (!parser_create_array_getter(parser, var, var->expression.next, name))
4682 else if (!localblock && !nofields &&
4683 var->expression.vtype == TYPE_FIELD &&
4684 var->expression.next->expression.vtype == TYPE_ARRAY)
4687 ast_expression *telem;
4689 ast_value *array = (ast_value*)var->expression.next;
4691 if (!ast_istype(var->expression.next, ast_value)) {
4692 parseerror(parser, "internal error: field element type must be an ast_value");
4696 snprintf(name, sizeof(name), "%s##SETF", var->name);
4697 if (!parser_create_array_field_setter(parser, array, name))
4700 telem = ast_type_copy(ast_ctx(var), array->expression.next);
4701 tfield = ast_value_new(ast_ctx(var), "<.type>", TYPE_FIELD);
4702 tfield->expression.next = telem;
4703 snprintf(name, sizeof(name), "%s##GETFP", var->name);
4704 if (!parser_create_array_getter(parser, array, (ast_expression*)tfield, name)) {
4712 if (parser->tok == ';') {
4713 ast_delete(basetype);
4714 if (!parser_next(parser)) {
4715 parseerror(parser, "error after variable declaration");
4721 if (parser->tok == ',')
4725 if (!var || (!localblock && !nofields && basetype->expression.vtype == TYPE_FIELD)) {
4728 parseerror(parser, "missing comma or semicolon while parsing variables");
4732 if (localblock && opts.standard == COMPILER_QCC) {
4733 if (parsewarning(parser, WARN_LOCAL_CONSTANTS,
4734 "initializing expression turns variable `%s` into a constant in this standard",
4741 if (parser->tok != '{') {
4742 if (parser->tok != '=') {
4743 parseerror(parser, "missing semicolon or initializer, got: `%s`", parser_tokval(parser));
4747 if (!parser_next(parser)) {
4748 parseerror(parser, "error parsing initializer");
4752 else if (opts.standard == COMPILER_QCC) {
4753 parseerror(parser, "expected '=' before function body in this standard");
4756 if (parser->tok == '#') {
4757 ast_function *func = NULL;
4760 parseerror(parser, "cannot declare builtins within functions");
4763 if (var->expression.vtype != TYPE_FUNCTION) {
4764 parseerror(parser, "unexpected builtin number, '%s' is not a function", var->name);
4767 if (!parser_next(parser)) {
4768 parseerror(parser, "expected builtin number");
4771 if (parser->tok != TOKEN_INTCONST) {
4772 parseerror(parser, "builtin number must be an integer constant");
4775 if (parser_token(parser)->constval.i < 0) {
4776 parseerror(parser, "builtin number must be an integer greater than zero");
4780 if (var->hasvalue) {
4781 (void)!parsewarning(parser, WARN_DOUBLE_DECLARATION,
4782 "builtin `%s` has already been defined\n"
4783 " -> previous declaration here: %s:%i",
4784 var->name, ast_ctx(var).file, (int)ast_ctx(var).line);
4788 func = ast_function_new(ast_ctx(var), var->name, var);
4790 parseerror(parser, "failed to allocate function for `%s`", var->name);
4793 vec_push(parser->functions, func);
4795 func->builtin = -parser_token(parser)->constval.i-1;
4798 if (!parser_next(parser)) {
4799 parseerror(parser, "expected comma or semicolon");
4801 ast_function_delete(func);
4802 var->constval.vfunc = NULL;
4806 else if (parser->tok == '{' || parser->tok == '[')
4809 parseerror(parser, "cannot declare functions within functions");
4814 ast_ctx(proto) = parser_ctx(parser);
4816 if (!parse_function_body(parser, var))
4818 ast_delete(basetype);
4819 for (i = 0; i < vec_size(parser->gotos); ++i)
4820 parseerror(parser, "undefined label: `%s`", parser->gotos[i]->name);
4821 vec_free(parser->gotos);
4822 vec_free(parser->labels);
4825 ast_expression *cexp;
4828 cexp = parse_expression_leave(parser, true);
4833 cval = (ast_value*)cexp;
4834 if (cval != parser->nil &&
4835 (!ast_istype(cval, ast_value) || ((!cval->hasvalue || cval->cvq != CV_CONST) && !cval->isfield))
4838 parseerror(parser, "cannot initialize a global constant variable with a non-constant expression");
4842 if (opts.standard != COMPILER_GMQCC &&
4843 !OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
4844 qualifier != CV_VAR)
4846 var->cvq = CV_CONST;
4848 if (cval == parser->nil)
4849 var->expression.flags |= AST_FLAG_INITIALIZED;
4852 var->hasvalue = true;
4853 if (cval->expression.vtype == TYPE_STRING)
4854 var->constval.vstring = parser_strdup(cval->constval.vstring);
4855 else if (cval->expression.vtype == TYPE_FIELD)
4856 var->constval.vfield = cval;
4858 memcpy(&var->constval, &cval->constval, sizeof(var->constval));
4864 shunt sy = { NULL, NULL };
4867 vec_push(sy.out, syexp(ast_ctx(var), (ast_expression*)var));
4868 vec_push(sy.out, syexp(ast_ctx(cexp), (ast_expression*)cexp));
4869 vec_push(sy.ops, syop(ast_ctx(var), parser->assign_op));
4870 if (!parser_sy_apply_operator(parser, &sy))
4873 if (vec_size(sy.out) != 1 && vec_size(sy.ops) != 0)
4874 parseerror(parser, "internal error: leaked operands");
4875 if (!ast_block_add_expr(localblock, (ast_expression*)sy.out[0].out))
4885 if (parser->tok == ',') {
4886 if (!parser_next(parser)) {
4887 parseerror(parser, "expected another variable");
4891 if (parser->tok != TOKEN_IDENT) {
4892 parseerror(parser, "expected another variable");
4895 var = ast_value_copy(basetype);
4897 ast_value_set_name(var, parser_tokval(parser));
4898 if (!parser_next(parser)) {
4899 parseerror(parser, "error parsing variable declaration");
4905 if (parser->tok != ';') {
4906 parseerror(parser, "missing semicolon after variables");
4910 if (!parser_next(parser)) {
4911 parseerror(parser, "parse error after variable declaration");
4915 ast_delete(basetype);
4919 if (cleanvar && var)
4921 ast_delete(basetype);
4925 ast_delete(basetype);
4926 if (cleanvar && var)
4928 if (me[0]) ast_member_delete(me[0]);
4929 if (me[1]) ast_member_delete(me[1]);
4930 if (me[2]) ast_member_delete(me[2]);
4934 static bool parser_global_statement(parser_t *parser)
4938 bool is_static = false;
4939 uint32_t qflags = 0;
4940 ast_value *istype = NULL;
4942 if (parser->tok == TOKEN_IDENT)
4943 istype = parser_find_typedef(parser, parser_tokval(parser), 0);
4945 if (istype || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
4947 return parse_variable(parser, NULL, false, CV_NONE, istype, false, false, 0);
4949 else if (parse_qualifiers(parser, false, &cvq, &noref, &is_static, &qflags))
4951 if (cvq == CV_WRONG)
4953 return parse_variable(parser, NULL, true, cvq, NULL, noref, is_static, qflags);
4955 else if (parser->tok == TOKEN_KEYWORD)
4957 if (!strcmp(parser_tokval(parser), "typedef")) {
4958 if (!parser_next(parser)) {
4959 parseerror(parser, "expected type definition after 'typedef'");
4962 return parse_typedef(parser);
4964 parseerror(parser, "unrecognized keyword `%s`", parser_tokval(parser));
4967 else if (parser->tok == '#')
4969 return parse_pragma(parser);
4971 else if (parser->tok == '$')
4973 if (!parser_next(parser)) {
4974 parseerror(parser, "parse error");
4980 parseerror(parser, "unexpected token: %s", parser->lex->tok.value);
4986 static uint16_t progdefs_crc_sum(uint16_t old, const char *str)
4988 return util_crc16(old, str, strlen(str));
4991 static void progdefs_crc_file(const char *str)
4993 /* write to progdefs.h here */
4997 static uint16_t progdefs_crc_both(uint16_t old, const char *str)
4999 old = progdefs_crc_sum(old, str);
5000 progdefs_crc_file(str);
5004 static void generate_checksum(parser_t *parser)
5006 uint16_t crc = 0xFFFF;
5010 crc = progdefs_crc_both(crc, "\n/* file generated by qcc, do not modify */\n\ntypedef struct\n{");
5011 crc = progdefs_crc_sum(crc, "\tint\tpad[28];\n");
5013 progdefs_crc_file("\tint\tpad;\n");
5014 progdefs_crc_file("\tint\tofs_return[3];\n");
5015 progdefs_crc_file("\tint\tofs_parm0[3];\n");
5016 progdefs_crc_file("\tint\tofs_parm1[3];\n");
5017 progdefs_crc_file("\tint\tofs_parm2[3];\n");
5018 progdefs_crc_file("\tint\tofs_parm3[3];\n");
5019 progdefs_crc_file("\tint\tofs_parm4[3];\n");
5020 progdefs_crc_file("\tint\tofs_parm5[3];\n");
5021 progdefs_crc_file("\tint\tofs_parm6[3];\n");
5022 progdefs_crc_file("\tint\tofs_parm7[3];\n");
5024 for (i = 0; i < parser->crc_globals; ++i) {
5025 if (!ast_istype(parser->globals[i], ast_value))
5027 value = (ast_value*)(parser->globals[i]);
5028 switch (value->expression.vtype) {
5029 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
5030 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
5031 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
5032 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
5034 crc = progdefs_crc_both(crc, "\tint\t");
5037 crc = progdefs_crc_both(crc, value->name);
5038 crc = progdefs_crc_both(crc, ";\n");
5040 crc = progdefs_crc_both(crc, "} globalvars_t;\n\ntypedef struct\n{\n");
5041 for (i = 0; i < parser->crc_fields; ++i) {
5042 if (!ast_istype(parser->fields[i], ast_value))
5044 value = (ast_value*)(parser->fields[i]);
5045 switch (value->expression.next->expression.vtype) {
5046 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
5047 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
5048 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
5049 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
5051 crc = progdefs_crc_both(crc, "\tint\t");
5054 crc = progdefs_crc_both(crc, value->name);
5055 crc = progdefs_crc_both(crc, ";\n");
5057 crc = progdefs_crc_both(crc, "} entvars_t;\n\n");
5062 static parser_t *parser;
5069 parser = (parser_t*)mem_a(sizeof(parser_t));
5073 memset(parser, 0, sizeof(*parser));
5075 for (i = 0; i < operator_count; ++i) {
5076 if (operators[i].id == opid1('=')) {
5077 parser->assign_op = operators+i;
5081 if (!parser->assign_op) {
5082 printf("internal error: initializing parser: failed to find assign operator\n");
5087 vec_push(parser->variables, parser->htfields = util_htnew(PARSER_HT_SIZE));
5088 vec_push(parser->variables, parser->htglobals = util_htnew(PARSER_HT_SIZE));
5089 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
5090 vec_push(parser->_blocktypedefs, 0);
5092 empty_ctx.file = "<internal>";
5094 parser->nil = ast_value_new(empty_ctx, "nil", TYPE_NIL);
5095 parser->nil->cvq = CV_CONST;
5096 if (OPTS_FLAG(UNTYPED_NIL))
5097 util_htset(parser->htglobals, "nil", (void*)parser->nil);
5101 bool parser_compile()
5103 /* initial lexer/parser state */
5104 parser->lex->flags.noops = true;
5106 if (parser_next(parser))
5108 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
5110 if (!parser_global_statement(parser)) {
5111 if (parser->tok == TOKEN_EOF)
5112 parseerror(parser, "unexpected eof");
5113 else if (compile_errors)
5114 parseerror(parser, "there have been errors, bailing out");
5115 lex_close(parser->lex);
5121 parseerror(parser, "parse error");
5122 lex_close(parser->lex);
5127 lex_close(parser->lex);
5130 return !compile_errors;
5133 bool parser_compile_file(const char *filename)
5135 parser->lex = lex_open(filename);
5137 con_err("failed to open file \"%s\"\n", filename);
5140 return parser_compile();
5143 bool parser_compile_string(const char *name, const char *str, size_t len)
5145 parser->lex = lex_open_string(str, len, name);
5147 con_err("failed to create lexer for string \"%s\"\n", name);
5150 return parser_compile();
5153 void parser_cleanup()
5156 for (i = 0; i < vec_size(parser->accessors); ++i) {
5157 ast_delete(parser->accessors[i]->constval.vfunc);
5158 parser->accessors[i]->constval.vfunc = NULL;
5159 ast_delete(parser->accessors[i]);
5161 for (i = 0; i < vec_size(parser->functions); ++i) {
5162 ast_delete(parser->functions[i]);
5164 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
5165 ast_delete(parser->imm_vector[i]);
5167 for (i = 0; i < vec_size(parser->imm_string); ++i) {
5168 ast_delete(parser->imm_string[i]);
5170 for (i = 0; i < vec_size(parser->imm_float); ++i) {
5171 ast_delete(parser->imm_float[i]);
5173 for (i = 0; i < vec_size(parser->fields); ++i) {
5174 ast_delete(parser->fields[i]);
5176 for (i = 0; i < vec_size(parser->globals); ++i) {
5177 ast_delete(parser->globals[i]);
5179 vec_free(parser->accessors);
5180 vec_free(parser->functions);
5181 vec_free(parser->imm_vector);
5182 vec_free(parser->imm_string);
5183 vec_free(parser->imm_float);
5184 vec_free(parser->globals);
5185 vec_free(parser->fields);
5187 for (i = 0; i < vec_size(parser->variables); ++i)
5188 util_htdel(parser->variables[i]);
5189 vec_free(parser->variables);
5190 vec_free(parser->_blocklocals);
5191 vec_free(parser->_locals);
5193 for (i = 0; i < vec_size(parser->_typedefs); ++i)
5194 ast_delete(parser->_typedefs[i]);
5195 vec_free(parser->_typedefs);
5196 for (i = 0; i < vec_size(parser->typedefs); ++i)
5197 util_htdel(parser->typedefs[i]);
5198 vec_free(parser->typedefs);
5199 vec_free(parser->_blocktypedefs);
5201 vec_free(parser->_block_ctx);
5203 vec_free(parser->labels);
5204 vec_free(parser->gotos);
5205 vec_free(parser->breaks);
5206 vec_free(parser->continues);
5211 bool parser_finish(const char *output)
5217 if (compile_errors) {
5218 con_out("*** there were compile errors\n");
5222 ir = ir_builder_new("gmqcc_out");
5224 con_out("failed to allocate builder\n");
5228 for (i = 0; i < vec_size(parser->fields); ++i) {
5231 if (!ast_istype(parser->fields[i], ast_value))
5233 field = (ast_value*)parser->fields[i];
5234 hasvalue = field->hasvalue;
5235 field->hasvalue = false;
5236 if (!ast_global_codegen((ast_value*)field, ir, true)) {
5237 con_out("failed to generate field %s\n", field->name);
5238 ir_builder_delete(ir);
5243 ast_expression *subtype;
5244 field->hasvalue = true;
5245 subtype = field->expression.next;
5246 ifld = ir_builder_create_field(ir, field->name, subtype->expression.vtype);
5247 if (subtype->expression.vtype == TYPE_FIELD)
5248 ifld->fieldtype = subtype->expression.next->expression.vtype;
5249 else if (subtype->expression.vtype == TYPE_FUNCTION)
5250 ifld->outtype = subtype->expression.next->expression.vtype;
5251 (void)!ir_value_set_field(field->ir_v, ifld);
5254 for (i = 0; i < vec_size(parser->globals); ++i) {
5256 if (!ast_istype(parser->globals[i], ast_value))
5258 asvalue = (ast_value*)(parser->globals[i]);
5259 if (!asvalue->uses && !asvalue->hasvalue && asvalue->expression.vtype != TYPE_FUNCTION) {
5260 retval = retval && !genwarning(ast_ctx(asvalue), WARN_UNUSED_VARIABLE,
5261 "unused global: `%s`", asvalue->name);
5263 if (!ast_global_codegen(asvalue, ir, false)) {
5264 con_out("failed to generate global %s\n", asvalue->name);
5265 ir_builder_delete(ir);
5269 for (i = 0; i < vec_size(parser->imm_float); ++i) {
5270 if (!ast_global_codegen(parser->imm_float[i], ir, false)) {
5271 con_out("failed to generate global %s\n", parser->imm_float[i]->name);
5272 ir_builder_delete(ir);
5276 for (i = 0; i < vec_size(parser->imm_string); ++i) {
5277 if (!ast_global_codegen(parser->imm_string[i], ir, false)) {
5278 con_out("failed to generate global %s\n", parser->imm_string[i]->name);
5279 ir_builder_delete(ir);
5283 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
5284 if (!ast_global_codegen(parser->imm_vector[i], ir, false)) {
5285 con_out("failed to generate global %s\n", parser->imm_vector[i]->name);
5286 ir_builder_delete(ir);
5290 for (i = 0; i < vec_size(parser->globals); ++i) {
5292 if (!ast_istype(parser->globals[i], ast_value))
5294 asvalue = (ast_value*)(parser->globals[i]);
5295 if (!(asvalue->expression.flags & AST_FLAG_INITIALIZED))
5297 if (asvalue->cvq == CV_CONST && !asvalue->hasvalue)
5298 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_CONSTANT,
5299 "uninitialized constant: `%s`",
5301 else if ((asvalue->cvq == CV_NONE || asvalue->cvq == CV_CONST) && !asvalue->hasvalue)
5302 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_GLOBAL,
5303 "uninitialized global: `%s`",
5306 if (!ast_generate_accessors(asvalue, ir)) {
5307 ir_builder_delete(ir);
5311 for (i = 0; i < vec_size(parser->fields); ++i) {
5313 asvalue = (ast_value*)(parser->fields[i]->expression.next);
5315 if (!ast_istype((ast_expression*)asvalue, ast_value))
5317 if (asvalue->expression.vtype != TYPE_ARRAY)
5319 if (!ast_generate_accessors(asvalue, ir)) {
5320 ir_builder_delete(ir);
5324 for (i = 0; i < vec_size(parser->functions); ++i) {
5325 if (!ast_function_codegen(parser->functions[i], ir)) {
5326 con_out("failed to generate function %s\n", parser->functions[i]->name);
5327 ir_builder_delete(ir);
5332 ir_builder_dump(ir, con_out);
5333 for (i = 0; i < vec_size(parser->functions); ++i) {
5334 if (!ir_function_finalize(parser->functions[i]->ir_func)) {
5335 con_out("failed to finalize function %s\n", parser->functions[i]->name);
5336 ir_builder_delete(ir);
5341 if (compile_Werrors) {
5342 con_out("*** there were warnings treated as errors\n");
5343 compile_show_werrors();
5349 ir_builder_dump(ir, con_out);
5351 generate_checksum(parser);
5353 if (!ir_builder_generate(ir, output)) {
5354 con_out("*** failed to generate output file\n");
5355 ir_builder_delete(ir);
5360 ir_builder_delete(ir);