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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;
810 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.x), out);
812 else if (!vec.x && !vec.z) { /* '0 n 0' * v */
813 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
814 out = (ast_expression*)ast_member_new(ctx, exprs[1], 1, NULL);
815 out->expression.node.keep = false;
817 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.y), out);
819 else if (!vec.x && !vec.y) { /* '0 n 0' * v */
820 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
821 out = (ast_expression*)ast_member_new(ctx, exprs[1], 2, NULL);
822 out->expression.node.keep = false;
824 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.z), out);
827 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
829 else if (OPTS_OPTIMIZATION(OPTIM_VECTOR_COMPONENTS) && CanConstFold1(exprs[1])) {
830 vector vec = ConstV(1);
831 if (!vec.y && !vec.z) { /* v * 'n 0 0' */
832 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
833 out = (ast_expression*)ast_member_new(ctx, exprs[0], 0, NULL);
834 out->expression.node.keep = false;
836 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.x));
838 else if (!vec.x && !vec.z) { /* v * '0 n 0' */
839 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
840 out = (ast_expression*)ast_member_new(ctx, exprs[0], 1, NULL);
841 out->expression.node.keep = false;
843 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.y));
845 else if (!vec.x && !vec.y) { /* v * '0 n 0' */
846 ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS];
847 out = (ast_expression*)ast_member_new(ctx, exprs[0], 2, NULL);
848 out->expression.node.keep = false;
850 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.z));
853 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
856 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
860 parseerror(parser, "invalid types used in expression: cannot multiply types %s and %s",
861 type_name[exprs[1]->expression.vtype],
862 type_name[exprs[0]->expression.vtype]);
867 if (NotSameType(TYPE_FLOAT)) {
868 parseerror(parser, "invalid types used in expression: cannot divide types %s and %s",
869 type_name[exprs[0]->expression.vtype],
870 type_name[exprs[1]->expression.vtype]);
873 if (CanConstFold(exprs[0], exprs[1]))
874 out = (ast_expression*)parser_const_float(parser, ConstF(0) / ConstF(1));
876 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F, exprs[0], exprs[1]);
880 parseerror(parser, "qc does not have a modulo operator");
884 if (NotSameType(TYPE_FLOAT)) {
885 parseerror(parser, "invalid types used in expression: cannot perform bit operations between types %s and %s",
886 type_name[exprs[0]->expression.vtype],
887 type_name[exprs[1]->expression.vtype]);
890 if (CanConstFold(exprs[0], exprs[1]))
891 out = (ast_expression*)parser_const_float(parser,
892 (op->id == opid1('|') ? (float)( ((qcint)ConstF(0)) | ((qcint)ConstF(1)) ) :
893 (float)( ((qcint)ConstF(0)) & ((qcint)ConstF(1)) ) ));
895 out = (ast_expression*)ast_binary_new(ctx,
896 (op->id == opid1('|') ? INSTR_BITOR : INSTR_BITAND),
900 parseerror(parser, "TODO: bitxor");
905 case opid3('<','<','='):
906 case opid3('>','>','='):
907 parseerror(parser, "TODO: shifts");
911 generated_op += 1; /* INSTR_OR */
913 generated_op += INSTR_AND;
915 if (NotSameType(TYPE_FLOAT)) {
916 parseerror(parser, "invalid types used in expression: cannot perform logical operations between types %s and %s",
917 type_name[exprs[0]->expression.vtype],
918 type_name[exprs[1]->expression.vtype]);
919 parseerror(parser, "TODO: logical ops for arbitrary types using INSTR_NOT");
920 parseerror(parser, "TODO: optional early out");
924 if (CanConstFold(exprs[0], exprs[1]))
926 if (OPTS_FLAG(PERL_LOGIC)) {
927 if (immediate_is_true(ctx, asvalue[0]))
931 out = (ast_expression*)parser_const_float(parser,
932 ( (generated_op == INSTR_OR)
933 ? (immediate_is_true(ctx, asvalue[0]) || immediate_is_true(ctx, asvalue[1]))
934 : (immediate_is_true(ctx, asvalue[0]) && immediate_is_true(ctx, asvalue[1])) )
939 if (OPTS_FLAG(PERL_LOGIC) && !ast_compare_type(exprs[0], exprs[1])) {
940 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
941 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
942 parseerror(parser, "invalid types for logical operation with -fperl-logic: %s and %s", ty1, ty2);
945 for (i = 0; i < 2; ++i) {
946 if (OPTS_FLAG(CORRECT_LOGIC) && exprs[i]->expression.vtype == TYPE_VECTOR) {
947 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[i]);
949 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
951 exprs[i] = out; out = NULL;
952 if (OPTS_FLAG(PERL_LOGIC)) {
953 /* here we want to keep the right expressions' type */
957 else if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && exprs[i]->expression.vtype == TYPE_STRING) {
958 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[i]);
960 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out);
962 exprs[i] = out; out = NULL;
963 if (OPTS_FLAG(PERL_LOGIC)) {
964 /* here we want to keep the right expressions' type */
969 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
974 if (vec_last(parser->pot) != POT_TERNARY2) {
975 parseerror(parser, "mismatched parenthesis/ternary");
978 vec_pop(parser->pot);
979 if (exprs[1]->expression.vtype != exprs[2]->expression.vtype) {
980 ast_type_to_string(exprs[1], ty1, sizeof(ty1));
981 ast_type_to_string(exprs[2], ty2, sizeof(ty2));
982 parseerror(parser, "operands of ternary expression must have the same type, got %s and %s", ty1, ty2);
985 if (CanConstFold1(exprs[0]))
986 out = (ConstF(0) ? exprs[1] : exprs[2]);
988 out = (ast_expression*)ast_ternary_new(ctx, exprs[0], exprs[1], exprs[2]);
992 generated_op += 1; /* INSTR_GT */
994 generated_op += 1; /* INSTR_LT */
995 case opid2('>', '='):
996 generated_op += 1; /* INSTR_GE */
997 case opid2('<', '='):
998 generated_op += INSTR_LE;
999 if (NotSameType(TYPE_FLOAT)) {
1000 parseerror(parser, "invalid types used in expression: cannot perform comparison between types %s and %s",
1001 type_name[exprs[0]->expression.vtype],
1002 type_name[exprs[1]->expression.vtype]);
1005 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
1007 case opid2('!', '='):
1008 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) {
1009 parseerror(parser, "invalid types used in expression: cannot perform comparison between types %s and %s",
1010 type_name[exprs[0]->expression.vtype],
1011 type_name[exprs[1]->expression.vtype]);
1014 out = (ast_expression*)ast_binary_new(ctx, type_ne_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]);
1016 case opid2('=', '='):
1017 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) {
1018 parseerror(parser, "invalid types used in expression: cannot perform comparison between types %s and %s",
1019 type_name[exprs[0]->expression.vtype],
1020 type_name[exprs[1]->expression.vtype]);
1023 out = (ast_expression*)ast_binary_new(ctx, type_eq_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]);
1027 if (ast_istype(exprs[0], ast_entfield)) {
1028 ast_expression *field = ((ast_entfield*)exprs[0])->field;
1029 if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) &&
1030 exprs[0]->expression.vtype == TYPE_FIELD &&
1031 exprs[0]->expression.next->expression.vtype == TYPE_VECTOR)
1033 assignop = type_storep_instr[TYPE_VECTOR];
1036 assignop = type_storep_instr[exprs[0]->expression.vtype];
1037 if (assignop == AINSTR_END ||
1038 !ast_compare_type(field->expression.next, exprs[1]))
1040 ast_type_to_string(field->expression.next, ty1, sizeof(ty1));
1041 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1042 if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
1043 field->expression.next->expression.vtype == TYPE_FUNCTION &&
1044 exprs[1]->expression.vtype == TYPE_FUNCTION)
1046 (void)!parsewarning(parser, WARN_ASSIGN_FUNCTION_TYPES,
1047 "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1050 parseerror(parser, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1055 if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) &&
1056 exprs[0]->expression.vtype == TYPE_FIELD &&
1057 exprs[0]->expression.next->expression.vtype == TYPE_VECTOR)
1059 assignop = type_store_instr[TYPE_VECTOR];
1062 assignop = type_store_instr[exprs[0]->expression.vtype];
1065 if (assignop == AINSTR_END) {
1066 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1067 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1068 parseerror(parser, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1070 else if (exprs[1]->expression.vtype != TYPE_NIL &&
1071 !ast_compare_type(exprs[0], exprs[1]))
1073 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1074 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1075 if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
1076 exprs[0]->expression.vtype == TYPE_FUNCTION &&
1077 exprs[1]->expression.vtype == TYPE_FUNCTION)
1079 (void)!parsewarning(parser, WARN_ASSIGN_FUNCTION_TYPES,
1080 "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1083 parseerror(parser, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
1086 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1087 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1089 out = (ast_expression*)ast_store_new(ctx, assignop, exprs[0], exprs[1]);
1091 case opid3('+','+','P'):
1092 case opid3('-','-','P'):
1094 if (exprs[0]->expression.vtype != TYPE_FLOAT) {
1095 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1096 parseerror(parser, "invalid type for prefix increment: %s", ty1);
1099 if (op->id == opid3('+','+','P'))
1100 addop = INSTR_ADD_F;
1102 addop = INSTR_SUB_F;
1103 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1104 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1106 if (ast_istype(exprs[0], ast_entfield)) {
1107 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
1109 (ast_expression*)parser_const_float_1(parser));
1111 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
1113 (ast_expression*)parser_const_float_1(parser));
1116 case opid3('S','+','+'):
1117 case opid3('S','-','-'):
1119 if (exprs[0]->expression.vtype != TYPE_FLOAT) {
1120 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1121 parseerror(parser, "invalid type for suffix increment: %s", ty1);
1124 if (op->id == opid3('S','+','+')) {
1125 addop = INSTR_ADD_F;
1126 subop = INSTR_SUB_F;
1128 addop = INSTR_SUB_F;
1129 subop = INSTR_ADD_F;
1131 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1132 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1134 if (ast_istype(exprs[0], ast_entfield)) {
1135 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
1137 (ast_expression*)parser_const_float_1(parser));
1139 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
1141 (ast_expression*)parser_const_float_1(parser));
1145 out = (ast_expression*)ast_binary_new(ctx, subop,
1147 (ast_expression*)parser_const_float_1(parser));
1149 case opid2('+','='):
1150 case opid2('-','='):
1151 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
1152 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
1154 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1155 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1156 parseerror(parser, "invalid types used in expression: cannot add or subtract type %s and %s",
1160 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1161 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1163 if (ast_istype(exprs[0], ast_entfield))
1164 assignop = type_storep_instr[exprs[0]->expression.vtype];
1166 assignop = type_store_instr[exprs[0]->expression.vtype];
1167 switch (exprs[0]->expression.vtype) {
1169 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1170 (op->id == opid2('+','=') ? INSTR_ADD_F : INSTR_SUB_F),
1171 exprs[0], exprs[1]);
1174 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1175 (op->id == opid2('+','=') ? INSTR_ADD_V : INSTR_SUB_V),
1176 exprs[0], exprs[1]);
1179 parseerror(parser, "invalid types used in expression: cannot add or subtract type %s and %s",
1180 type_name[exprs[0]->expression.vtype],
1181 type_name[exprs[1]->expression.vtype]);
1185 case opid2('*','='):
1186 case opid2('/','='):
1187 if (exprs[1]->expression.vtype != TYPE_FLOAT ||
1188 !(exprs[0]->expression.vtype == TYPE_FLOAT ||
1189 exprs[0]->expression.vtype == TYPE_VECTOR))
1191 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1192 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1193 parseerror(parser, "invalid types used in expression: %s and %s",
1197 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1198 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1200 if (ast_istype(exprs[0], ast_entfield))
1201 assignop = type_storep_instr[exprs[0]->expression.vtype];
1203 assignop = type_store_instr[exprs[0]->expression.vtype];
1204 switch (exprs[0]->expression.vtype) {
1206 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1207 (op->id == opid2('*','=') ? INSTR_MUL_F : INSTR_DIV_F),
1208 exprs[0], exprs[1]);
1211 if (op->id == opid2('*','=')) {
1212 out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
1213 exprs[0], exprs[1]);
1215 /* there's no DIV_VF */
1216 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F,
1217 (ast_expression*)parser_const_float_1(parser),
1221 out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
1226 parseerror(parser, "invalid types used in expression: cannot add or subtract type %s and %s",
1227 type_name[exprs[0]->expression.vtype],
1228 type_name[exprs[1]->expression.vtype]);
1232 case opid2('&','='):
1233 case opid2('|','='):
1234 if (NotSameType(TYPE_FLOAT)) {
1235 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1236 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1237 parseerror(parser, "invalid types used in expression: %s and %s",
1241 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1242 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1244 if (ast_istype(exprs[0], ast_entfield))
1245 assignop = type_storep_instr[exprs[0]->expression.vtype];
1247 assignop = type_store_instr[exprs[0]->expression.vtype];
1248 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1249 (op->id == opid2('&','=') ? INSTR_BITAND : INSTR_BITOR),
1250 exprs[0], exprs[1]);
1252 case opid3('&','~','='):
1253 /* This is like: a &= ~(b);
1254 * But QC has no bitwise-not, so we implement it as
1257 if (NotSameType(TYPE_FLOAT)) {
1258 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1259 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1260 parseerror(parser, "invalid types used in expression: %s and %s",
1264 if (ast_istype(exprs[0], ast_entfield))
1265 assignop = type_storep_instr[exprs[0]->expression.vtype];
1267 assignop = type_store_instr[exprs[0]->expression.vtype];
1268 out = (ast_expression*)ast_binary_new(ctx, INSTR_BITAND, exprs[0], exprs[1]);
1271 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1272 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1274 asbinstore = ast_binstore_new(ctx, assignop, INSTR_SUB_F, exprs[0], out);
1275 asbinstore->keep_dest = true;
1276 out = (ast_expression*)asbinstore;
1282 parseerror(parser, "failed to apply operand %s", op->op);
1286 DEBUGSHUNTDO(con_out("applied %s\n", op->op));
1287 vec_push(sy->out, syexp(ctx, out));
1291 static bool parser_close_call(parser_t *parser, shunt *sy)
1293 /* was a function call */
1294 ast_expression *fun;
1300 vec_shrinkby(sy->ops, 1);
1301 fid = sy->ops[vec_size(sy->ops)].off;
1303 /* out[fid] is the function
1304 * everything above is parameters...
1305 * 0 params = nothing
1306 * 1 params = ast_expression
1310 if (vec_size(sy->out) < 1 || vec_size(sy->out) <= fid) {
1311 parseerror(parser, "internal error: function call needs function and parameter list...");
1315 fun = sy->out[fid].out;
1317 if (fun == intrinsic_debug_typestring) {
1319 if (fid+2 != vec_size(sy->out) ||
1320 vec_last(sy->out).block)
1322 parseerror(parser, "intrinsic __builtin_debug_typestring requires exactly 1 parameter");
1325 ast_type_to_string(vec_last(sy->out).out, ty, sizeof(ty));
1326 ast_unref(vec_last(sy->out).out);
1327 sy->out[fid] = syexp(ast_ctx(vec_last(sy->out).out),
1328 (ast_expression*)parser_const_string(parser, ty, false));
1329 vec_shrinkby(sy->out, 1);
1333 call = ast_call_new(sy->ops[vec_size(sy->ops)].ctx, fun);
1335 parseerror(parser, "internal error: failed to create ast_call node");
1339 if (fid+1 == vec_size(sy->out)) {
1342 } else if (fid+2 == vec_size(sy->out)) {
1344 vec_shrinkby(sy->out, 1);
1345 params = sy->out[vec_size(sy->out)].block;
1349 vec_push(call->params, sy->out[vec_size(sy->out)].out);
1351 paramcount = vec_size(params->exprs);
1352 call->params = params->exprs;
1353 params->exprs = NULL;
1356 (void)!ast_call_check_types(call);
1358 parseerror(parser, "invalid function call");
1362 /* overwrite fid, the function, with a call */
1363 sy->out[fid] = syexp(call->expression.node.context, (ast_expression*)call);
1365 if (fun->expression.vtype != TYPE_FUNCTION) {
1366 parseerror(parser, "not a function (%s)", type_name[fun->expression.vtype]);
1370 if (!fun->expression.next) {
1371 parseerror(parser, "could not determine function return type");
1374 if (vec_size(fun->expression.params) != paramcount &&
1375 !((fun->expression.flags & AST_FLAG_VARIADIC) &&
1376 vec_size(fun->expression.params) < paramcount))
1379 const char *fewmany = (vec_size(fun->expression.params) > paramcount) ? "few" : "many";
1381 fval = (ast_istype(fun, ast_value) ? ((ast_value*)fun) : NULL);
1382 if (opts.standard == COMPILER_GMQCC)
1385 parseerror(parser, "too %s parameters for call to %s: expected %i, got %i\n"
1386 " -> `%s` has been declared here: %s:%i",
1387 fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount,
1388 fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
1390 parseerror(parser, "too %s parameters for function call: expected %i, got %i\n"
1391 " -> it has been declared here: %s:%i",
1392 fewmany, (int)vec_size(fun->expression.params), (int)paramcount,
1393 ast_ctx(fun).file, (int)ast_ctx(fun).line);
1399 return !parsewarning(parser, WARN_TOO_FEW_PARAMETERS,
1400 "too %s parameters for call to %s: expected %i, got %i\n"
1401 " -> `%s` has been declared here: %s:%i",
1402 fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount,
1403 fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
1405 return !parsewarning(parser, WARN_TOO_FEW_PARAMETERS,
1406 "too %s parameters for function call: expected %i, got %i\n"
1407 " -> it has been declared here: %s:%i",
1408 fewmany, (int)vec_size(fun->expression.params), (int)paramcount,
1409 ast_ctx(fun).file, (int)ast_ctx(fun).line);
1417 static bool parser_close_paren(parser_t *parser, shunt *sy, bool functions_only)
1419 if (!vec_size(sy->ops)) {
1420 parseerror(parser, "unmatched closing paren");
1423 /* this would for bit a + (x) because there are no operators inside (x)
1424 if (sy->ops[vec_size(sy->ops)-1].paren == 1) {
1425 parseerror(parser, "empty parenthesis expression");
1429 while (vec_size(sy->ops)) {
1430 if (sy->ops[vec_size(sy->ops)-1].paren == SY_PAREN_FUNC) {
1431 if (!parser_close_call(parser, sy))
1435 if (sy->ops[vec_size(sy->ops)-1].paren == SY_PAREN_EXPR) {
1436 vec_shrinkby(sy->ops, 1);
1437 return !functions_only;
1439 if (sy->ops[vec_size(sy->ops)-1].paren == SY_PAREN_INDEX) {
1442 /* pop off the parenthesis */
1443 vec_shrinkby(sy->ops, 1);
1444 /* then apply the index operator */
1445 if (!parser_sy_apply_operator(parser, sy))
1449 if (sy->ops[vec_size(sy->ops)-1].paren == SY_PAREN_TERNARY) {
1452 if (vec_last(parser->pot) != POT_TERNARY1) {
1453 parseerror(parser, "mismatched colon in ternary expression (missing closing paren?)");
1456 vec_last(parser->pot) = POT_TERNARY2;
1457 /* pop off the parenthesis */
1458 vec_shrinkby(sy->ops, 1);
1461 if (!parser_sy_apply_operator(parser, sy))
1467 static void parser_reclassify_token(parser_t *parser)
1470 for (i = 0; i < operator_count; ++i) {
1471 if (!strcmp(parser_tokval(parser), operators[i].op)) {
1472 parser->tok = TOKEN_OPERATOR;
1478 static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma)
1480 ast_expression *expr = NULL;
1482 bool wantop = false;
1483 bool gotmemberof = false;
1485 /* count the parens because an if starts with one, so the
1486 * end of a condition is an unmatched closing paren
1494 parser->lex->flags.noops = false;
1496 parser_reclassify_token(parser);
1501 gotmemberof = false;
1503 parser->memberof = 0;
1505 if (OPTS_FLAG(TRANSLATABLE_STRINGS) &&
1506 parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "_"))
1508 /* a translatable string */
1512 parseerror(parser, "expected operator or end of statement, got constant");
1516 parser->lex->flags.noops = true;
1517 if (!parser_next(parser) || parser->tok != '(') {
1518 parseerror(parser, "use _(\"string\") to create a translatable string constant");
1521 parser->lex->flags.noops = false;
1522 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
1523 parseerror(parser, "expected a constant string in translatable-string extension");
1526 val = parser_const_string(parser, parser_tokval(parser), true);
1530 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1531 DEBUGSHUNTDO(con_out("push string\n"));
1533 if (!parser_next(parser) || parser->tok != ')') {
1534 parseerror(parser, "expected closing paren after translatable string");
1538 else if (parser->tok == TOKEN_IDENT)
1540 ast_expression *var;
1542 parseerror(parser, "expected operator or end of statement");
1547 if (opts.standard == COMPILER_GMQCC)
1549 if (parser->memberof == TYPE_ENTITY) {
1550 /* still get vars first since there could be a fieldpointer */
1551 var = parser_find_var(parser, parser_tokval(parser));
1553 var = parser_find_field(parser, parser_tokval(parser));
1555 else if (parser->memberof == TYPE_VECTOR)
1557 parseerror(parser, "TODO: implement effective vector member access");
1560 else if (parser->memberof) {
1561 parseerror(parser, "namespace for member not found");
1565 var = parser_find_var(parser, parser_tokval(parser));
1567 var = parser_find_var(parser, parser_tokval(parser));
1569 var = parser_find_field(parser, parser_tokval(parser));
1573 if (!strcmp(parser_tokval(parser), "__builtin_debug_typestring")) {
1574 var = (ast_expression*)intrinsic_debug_typestring;
1579 parseerror(parser, "unexpected ident: %s", parser_tokval(parser));
1585 if (ast_istype(var, ast_value)) {
1586 ((ast_value*)var)->uses++;
1588 else if (ast_istype(var, ast_member)) {
1589 ast_member *mem = (ast_member*)var;
1590 if (ast_istype(mem->owner, ast_value))
1591 ((ast_value*)(mem->owner))->uses++;
1594 vec_push(sy.out, syexp(parser_ctx(parser), var));
1595 DEBUGSHUNTDO(con_out("push %s\n", parser_tokval(parser)));
1597 else if (parser->tok == TOKEN_FLOATCONST) {
1600 parseerror(parser, "expected operator or end of statement, got constant");
1604 val = parser_const_float(parser, (parser_token(parser)->constval.f));
1607 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1608 DEBUGSHUNTDO(con_out("push %g\n", parser_token(parser)->constval.f));
1610 else if (parser->tok == TOKEN_INTCONST || parser->tok == TOKEN_CHARCONST) {
1613 parseerror(parser, "expected operator or end of statement, got constant");
1617 val = parser_const_float(parser, (double)(parser_token(parser)->constval.i));
1620 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1621 DEBUGSHUNTDO(con_out("push %i\n", parser_token(parser)->constval.i));
1623 else if (parser->tok == TOKEN_STRINGCONST) {
1626 parseerror(parser, "expected operator or end of statement, got constant");
1630 val = parser_const_string(parser, parser_tokval(parser), false);
1633 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1634 DEBUGSHUNTDO(con_out("push string\n"));
1636 else if (parser->tok == TOKEN_VECTORCONST) {
1639 parseerror(parser, "expected operator or end of statement, got constant");
1643 val = parser_const_vector(parser, parser_token(parser)->constval.v);
1646 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1647 DEBUGSHUNTDO(con_out("push '%g %g %g'\n",
1648 parser_token(parser)->constval.v.x,
1649 parser_token(parser)->constval.v.y,
1650 parser_token(parser)->constval.v.z));
1652 else if (parser->tok == '(') {
1653 parseerror(parser, "internal error: '(' should be classified as operator");
1656 else if (parser->tok == '[') {
1657 parseerror(parser, "internal error: '[' should be classified as operator");
1660 else if (parser->tok == ')') {
1662 DEBUGSHUNTDO(con_out("do[op] )\n"));
1666 /* we do expect an operator next */
1667 /* closing an opening paren */
1668 if (!parser_close_paren(parser, &sy, false))
1670 if (vec_last(parser->pot) != POT_PAREN) {
1671 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1674 vec_pop(parser->pot);
1676 DEBUGSHUNTDO(con_out("do[nop] )\n"));
1680 /* allowed for function calls */
1681 if (!parser_close_paren(parser, &sy, true))
1683 if (vec_last(parser->pot) != POT_PAREN) {
1684 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1687 vec_pop(parser->pot);
1691 else if (parser->tok == ']') {
1693 parseerror(parser, "operand expected");
1697 if (!parser_close_paren(parser, &sy, false))
1699 if (vec_last(parser->pot) != POT_PAREN) {
1700 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1703 vec_pop(parser->pot);
1706 else if (parser->tok == TOKEN_TYPENAME) {
1707 parseerror(parser, "unexpected typename");
1710 else if (parser->tok != TOKEN_OPERATOR) {
1712 parseerror(parser, "expected operator or end of statement");
1719 /* classify the operator */
1720 const oper_info *op;
1721 const oper_info *olast = NULL;
1723 for (o = 0; o < operator_count; ++o) {
1724 if (((!(operators[o].flags & OP_PREFIX) == !!wantop)) &&
1725 /* !(operators[o].flags & OP_SUFFIX) && / * remove this */
1726 !strcmp(parser_tokval(parser), operators[o].op))
1731 if (o == operator_count) {
1732 /* no operator found... must be the end of the statement */
1735 /* found an operator */
1738 /* when declaring variables, a comma starts a new variable */
1739 if (op->id == opid1(',') && !parens && stopatcomma) {
1740 /* fixup the token */
1745 /* a colon without a pervious question mark cannot be a ternary */
1746 if (!ternaries && op->id == opid2(':','?')) {
1751 if (op->id == opid1(',')) {
1752 if (vec_size(parser->pot) && vec_last(parser->pot) == POT_TERNARY2) {
1753 (void)!parsewarning(parser, WARN_TERNARY_PRECEDENCE, "suggesting parenthesis around ternary expression");
1757 if (vec_size(sy.ops) && !vec_last(sy.ops).paren)
1758 olast = &operators[vec_last(sy.ops).etype-1];
1761 (op->prec < olast->prec) ||
1762 (op->assoc == ASSOC_LEFT && op->prec <= olast->prec) ) )
1764 if (!parser_sy_apply_operator(parser, &sy))
1766 if (vec_size(sy.ops) && !vec_last(sy.ops).paren)
1767 olast = &operators[vec_last(sy.ops).etype-1];
1772 if (op->id == opid1('.') && opts.standard == COMPILER_GMQCC) {
1773 /* for gmqcc standard: open up the namespace of the previous type */
1774 ast_expression *prevex = vec_last(sy.out).out;
1776 parseerror(parser, "unexpected member operator");
1779 if (prevex->expression.vtype == TYPE_ENTITY)
1780 parser->memberof = TYPE_ENTITY;
1781 else if (prevex->expression.vtype == TYPE_VECTOR)
1782 parser->memberof = TYPE_VECTOR;
1784 parseerror(parser, "type error: type has no members");
1790 if (op->id == opid1('(')) {
1792 size_t sycount = vec_size(sy.out);
1793 DEBUGSHUNTDO(con_out("push [op] (\n"));
1794 ++parens; vec_push(parser->pot, POT_PAREN);
1795 /* we expected an operator, this is the function-call operator */
1796 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_FUNC, sycount-1));
1798 ++parens; vec_push(parser->pot, POT_PAREN);
1799 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_EXPR, 0));
1800 DEBUGSHUNTDO(con_out("push [nop] (\n"));
1803 } else if (op->id == opid1('[')) {
1805 parseerror(parser, "unexpected array subscript");
1808 ++parens; vec_push(parser->pot, POT_PAREN);
1809 /* push both the operator and the paren, this makes life easier */
1810 vec_push(sy.ops, syop(parser_ctx(parser), op));
1811 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_INDEX, 0));
1813 } else if (op->id == opid2('?',':')) {
1814 vec_push(sy.ops, syop(parser_ctx(parser), op));
1815 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_TERNARY, 0));
1818 vec_push(parser->pot, POT_TERNARY1);
1819 } else if (op->id == opid2(':','?')) {
1820 if (!vec_size(parser->pot)) {
1821 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
1824 if (vec_last(parser->pot) != POT_TERNARY1) {
1825 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
1828 if (!parser_close_paren(parser, &sy, false))
1830 vec_push(sy.ops, syop(parser_ctx(parser), op));
1834 DEBUGSHUNTDO(con_out("push operator %s\n", op->op));
1835 vec_push(sy.ops, syop(parser_ctx(parser), op));
1836 wantop = !!(op->flags & OP_SUFFIX);
1839 if (!parser_next(parser)) {
1842 if (parser->tok == ';' ||
1843 (!parens && parser->tok == ']'))
1849 while (vec_size(sy.ops)) {
1850 if (!parser_sy_apply_operator(parser, &sy))
1854 parser->lex->flags.noops = true;
1855 if (!vec_size(sy.out)) {
1856 parseerror(parser, "empty expression");
1859 expr = sy.out[0].out;
1862 DEBUGSHUNTDO(con_out("shunt done\n"));
1863 if (vec_size(parser->pot)) {
1864 parseerror(parser, "internal error: vec_size(parser->pot) = %lu", (unsigned long)vec_size(parser->pot));
1867 vec_free(parser->pot);
1871 parser->lex->flags.noops = true;
1877 static ast_expression* parse_expression(parser_t *parser, bool stopatcomma)
1879 ast_expression *e = parse_expression_leave(parser, stopatcomma);
1882 if (!parser_next(parser)) {
1889 static void parser_enterblock(parser_t *parser)
1891 vec_push(parser->variables, util_htnew(PARSER_HT_SIZE));
1892 vec_push(parser->_blocklocals, vec_size(parser->_locals));
1893 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
1894 vec_push(parser->_blocktypedefs, vec_size(parser->_typedefs));
1895 vec_push(parser->_block_ctx, parser_ctx(parser));
1898 static bool parser_leaveblock(parser_t *parser)
1901 size_t locals, typedefs;
1903 if (vec_size(parser->variables) <= PARSER_HT_LOCALS) {
1904 parseerror(parser, "internal error: parser_leaveblock with no block");
1908 util_htdel(vec_last(parser->variables));
1909 vec_pop(parser->variables);
1910 if (!vec_size(parser->_blocklocals)) {
1911 parseerror(parser, "internal error: parser_leaveblock with no block (2)");
1915 locals = vec_last(parser->_blocklocals);
1916 vec_pop(parser->_blocklocals);
1917 while (vec_size(parser->_locals) != locals) {
1918 ast_expression *e = vec_last(parser->_locals);
1919 ast_value *v = (ast_value*)e;
1920 vec_pop(parser->_locals);
1921 if (ast_istype(e, ast_value) && !v->uses) {
1922 if (compile_warning(ast_ctx(v), WARN_UNUSED_VARIABLE, "unused variable: `%s`", v->name))
1927 typedefs = vec_last(parser->_blocktypedefs);
1928 while (vec_size(parser->_typedefs) != typedefs) {
1929 ast_delete(vec_last(parser->_typedefs));
1930 vec_pop(parser->_typedefs);
1932 util_htdel(vec_last(parser->typedefs));
1933 vec_pop(parser->typedefs);
1935 vec_pop(parser->_block_ctx);
1939 static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e)
1941 vec_push(parser->_locals, e);
1942 util_htset(vec_last(parser->variables), name, (void*)e);
1945 static ast_expression* process_condition(parser_t *parser, ast_expression *cond, bool *_ifnot)
1949 ast_expression *prev;
1951 if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && cond->expression.vtype == TYPE_STRING)
1954 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_S, cond);
1957 parseerror(parser, "internal error: failed to process condition");
1962 else if (OPTS_FLAG(CORRECT_LOGIC) && cond->expression.vtype == TYPE_VECTOR)
1964 /* vector types need to be cast to true booleans */
1965 ast_binary *bin = (ast_binary*)cond;
1966 if (!OPTS_FLAG(PERL_LOGIC) || !ast_istype(cond, ast_binary) || !(bin->op == INSTR_AND || bin->op == INSTR_OR))
1968 /* in perl-logic, AND and OR take care of the -fcorrect-logic */
1970 cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_V, cond);
1973 parseerror(parser, "internal error: failed to process condition");
1980 unary = (ast_unary*)cond;
1981 while (ast_istype(cond, ast_unary) && unary->op == INSTR_NOT_F)
1983 cond = unary->operand;
1984 unary->operand = NULL;
1987 unary = (ast_unary*)cond;
1991 parseerror(parser, "internal error: failed to process condition");
1993 if (ifnot) *_ifnot = !*_ifnot;
1997 static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out)
2000 ast_expression *cond, *ontrue = NULL, *onfalse = NULL;
2003 lex_ctx ctx = parser_ctx(parser);
2005 (void)block; /* not touching */
2007 /* skip the 'if', parse an optional 'not' and check for an opening paren */
2008 if (!parser_next(parser)) {
2009 parseerror(parser, "expected condition or 'not'");
2012 if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "not")) {
2014 if (!parser_next(parser)) {
2015 parseerror(parser, "expected condition in parenthesis");
2019 if (parser->tok != '(') {
2020 parseerror(parser, "expected 'if' condition in parenthesis");
2023 /* parse into the expression */
2024 if (!parser_next(parser)) {
2025 parseerror(parser, "expected 'if' condition after opening paren");
2028 /* parse the condition */
2029 cond = parse_expression_leave(parser, false);
2033 if (parser->tok != ')') {
2034 parseerror(parser, "expected closing paren after 'if' condition");
2038 /* parse into the 'then' branch */
2039 if (!parser_next(parser)) {
2040 parseerror(parser, "expected statement for on-true branch of 'if'");
2044 if (!parse_statement_or_block(parser, &ontrue)) {
2048 /* check for an else */
2049 if (!strcmp(parser_tokval(parser), "else")) {
2050 /* parse into the 'else' branch */
2051 if (!parser_next(parser)) {
2052 parseerror(parser, "expected on-false branch after 'else'");
2057 if (!parse_statement_or_block(parser, &onfalse)) {
2064 cond = process_condition(parser, cond, &ifnot);
2066 if (ontrue) ast_delete(ontrue);
2067 if (onfalse) ast_delete(onfalse);
2072 ifthen = ast_ifthen_new(ctx, cond, onfalse, ontrue);
2074 ifthen = ast_ifthen_new(ctx, cond, ontrue, onfalse);
2075 *out = (ast_expression*)ifthen;
2079 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out);
2080 static bool parse_while(parser_t *parser, ast_block *block, ast_expression **out)
2085 /* skip the 'while' and get the body */
2086 if (!parser_next(parser)) {
2087 if (OPTS_FLAG(LOOP_LABELS))
2088 parseerror(parser, "expected loop label or 'while' condition in parenthesis");
2090 parseerror(parser, "expected 'while' condition in parenthesis");
2094 if (parser->tok == ':') {
2095 if (!OPTS_FLAG(LOOP_LABELS))
2096 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2097 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2098 parseerror(parser, "expected loop label");
2101 label = util_strdup(parser_tokval(parser));
2102 if (!parser_next(parser)) {
2104 parseerror(parser, "expected 'while' condition in parenthesis");
2109 if (parser->tok != '(') {
2110 parseerror(parser, "expected 'while' condition in parenthesis");
2114 vec_push(parser->breaks, label);
2115 vec_push(parser->continues, label);
2117 rv = parse_while_go(parser, block, out);
2120 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2121 parseerror(parser, "internal error: label stack corrupted");
2127 vec_pop(parser->breaks);
2128 vec_pop(parser->continues);
2133 static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **out)
2136 ast_expression *cond, *ontrue;
2140 lex_ctx ctx = parser_ctx(parser);
2142 (void)block; /* not touching */
2144 /* parse into the expression */
2145 if (!parser_next(parser)) {
2146 parseerror(parser, "expected 'while' condition after opening paren");
2149 /* parse the condition */
2150 cond = parse_expression_leave(parser, false);
2154 if (parser->tok != ')') {
2155 parseerror(parser, "expected closing paren after 'while' condition");
2159 /* parse into the 'then' branch */
2160 if (!parser_next(parser)) {
2161 parseerror(parser, "expected while-loop body");
2165 if (!parse_statement_or_block(parser, &ontrue)) {
2170 cond = process_condition(parser, cond, &ifnot);
2175 aloop = ast_loop_new(ctx, NULL, cond, ifnot, NULL, false, NULL, ontrue);
2176 *out = (ast_expression*)aloop;
2180 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out);
2181 static bool parse_dowhile(parser_t *parser, ast_block *block, ast_expression **out)
2186 /* skip the 'do' and get the body */
2187 if (!parser_next(parser)) {
2188 if (OPTS_FLAG(LOOP_LABELS))
2189 parseerror(parser, "expected loop label or body");
2191 parseerror(parser, "expected loop body");
2195 if (parser->tok == ':') {
2196 if (!OPTS_FLAG(LOOP_LABELS))
2197 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2198 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2199 parseerror(parser, "expected loop label");
2202 label = util_strdup(parser_tokval(parser));
2203 if (!parser_next(parser)) {
2205 parseerror(parser, "expected loop body");
2210 vec_push(parser->breaks, label);
2211 vec_push(parser->continues, label);
2213 rv = parse_dowhile_go(parser, block, out);
2216 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2217 parseerror(parser, "internal error: label stack corrupted");
2223 vec_pop(parser->breaks);
2224 vec_pop(parser->continues);
2229 static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression **out)
2232 ast_expression *cond, *ontrue;
2236 lex_ctx ctx = parser_ctx(parser);
2238 (void)block; /* not touching */
2240 if (!parse_statement_or_block(parser, &ontrue))
2243 /* expect the "while" */
2244 if (parser->tok != TOKEN_KEYWORD ||
2245 strcmp(parser_tokval(parser), "while"))
2247 parseerror(parser, "expected 'while' and condition");
2252 /* skip the 'while' and check for opening paren */
2253 if (!parser_next(parser) || parser->tok != '(') {
2254 parseerror(parser, "expected 'while' condition in parenthesis");
2258 /* parse into the expression */
2259 if (!parser_next(parser)) {
2260 parseerror(parser, "expected 'while' condition after opening paren");
2264 /* parse the condition */
2265 cond = parse_expression_leave(parser, false);
2269 if (parser->tok != ')') {
2270 parseerror(parser, "expected closing paren after 'while' condition");
2276 if (!parser_next(parser) || parser->tok != ';') {
2277 parseerror(parser, "expected semicolon after condition");
2283 if (!parser_next(parser)) {
2284 parseerror(parser, "parse error");
2290 cond = process_condition(parser, cond, &ifnot);
2295 aloop = ast_loop_new(ctx, NULL, NULL, false, cond, ifnot, NULL, ontrue);
2296 *out = (ast_expression*)aloop;
2300 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out);
2301 static bool parse_for(parser_t *parser, ast_block *block, ast_expression **out)
2306 /* skip the 'for' and check for opening paren */
2307 if (!parser_next(parser)) {
2308 if (OPTS_FLAG(LOOP_LABELS))
2309 parseerror(parser, "expected loop label or 'for' expressions in parenthesis");
2311 parseerror(parser, "expected 'for' expressions in parenthesis");
2315 if (parser->tok == ':') {
2316 if (!OPTS_FLAG(LOOP_LABELS))
2317 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2318 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2319 parseerror(parser, "expected loop label");
2322 label = util_strdup(parser_tokval(parser));
2323 if (!parser_next(parser)) {
2325 parseerror(parser, "expected 'for' expressions in parenthesis");
2330 if (parser->tok != '(') {
2331 parseerror(parser, "expected 'for' expressions in parenthesis");
2335 vec_push(parser->breaks, label);
2336 vec_push(parser->continues, label);
2338 rv = parse_for_go(parser, block, out);
2341 if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) {
2342 parseerror(parser, "internal error: label stack corrupted");
2348 vec_pop(parser->breaks);
2349 vec_pop(parser->continues);
2353 static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **out)
2356 ast_expression *initexpr, *cond, *increment, *ontrue;
2362 lex_ctx ctx = parser_ctx(parser);
2364 parser_enterblock(parser);
2371 /* parse into the expression */
2372 if (!parser_next(parser)) {
2373 parseerror(parser, "expected 'for' initializer after opening paren");
2378 if (parser->tok == TOKEN_IDENT)
2379 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
2381 if (typevar || parser->tok == TOKEN_TYPENAME) {
2382 if (opts.standard != COMPILER_GMQCC) {
2383 if (parsewarning(parser, WARN_EXTENSIONS,
2384 "current standard does not allow variable declarations in for-loop initializers"))
2387 if (!parse_variable(parser, block, true, CV_VAR, typevar, false, false, 0))
2390 else if (parser->tok != ';')
2392 initexpr = parse_expression_leave(parser, false);
2397 /* move on to condition */
2398 if (parser->tok != ';') {
2399 parseerror(parser, "expected semicolon after for-loop initializer");
2402 if (!parser_next(parser)) {
2403 parseerror(parser, "expected for-loop condition");
2407 /* parse the condition */
2408 if (parser->tok != ';') {
2409 cond = parse_expression_leave(parser, false);
2414 /* move on to incrementor */
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 incrementor */
2425 if (parser->tok != ')') {
2426 increment = parse_expression_leave(parser, false);
2429 if (!ast_side_effects(increment)) {
2430 if (genwarning(ast_ctx(increment), WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
2436 if (parser->tok != ')') {
2437 parseerror(parser, "expected closing paren after 'for-loop' incrementor");
2440 /* parse into the 'then' branch */
2441 if (!parser_next(parser)) {
2442 parseerror(parser, "expected for-loop body");
2445 if (!parse_statement_or_block(parser, &ontrue))
2449 cond = process_condition(parser, cond, &ifnot);
2453 aloop = ast_loop_new(ctx, initexpr, cond, ifnot, NULL, false, increment, ontrue);
2454 *out = (ast_expression*)aloop;
2456 if (!parser_leaveblock(parser))
2460 if (initexpr) ast_delete(initexpr);
2461 if (cond) ast_delete(cond);
2462 if (increment) ast_delete(increment);
2463 (void)!parser_leaveblock(parser);
2467 static bool parse_return(parser_t *parser, ast_block *block, ast_expression **out)
2469 ast_expression *exp = NULL;
2470 ast_return *ret = NULL;
2471 ast_value *expected = parser->function->vtype;
2473 lex_ctx ctx = parser_ctx(parser);
2475 (void)block; /* not touching */
2477 if (!parser_next(parser)) {
2478 parseerror(parser, "expected return expression");
2482 if (parser->tok != ';') {
2483 exp = parse_expression(parser, false);
2487 if (exp->expression.vtype != expected->expression.next->expression.vtype) {
2488 parseerror(parser, "return with invalid expression");
2491 ret = ast_return_new(ctx, exp);
2497 if (!parser_next(parser))
2498 parseerror(parser, "parse error");
2499 if (expected->expression.next->expression.vtype != TYPE_VOID) {
2500 if (opts.standard != COMPILER_GMQCC)
2501 (void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value");
2503 parseerror(parser, "return without value");
2505 ret = ast_return_new(ctx, NULL);
2507 *out = (ast_expression*)ret;
2511 static bool parse_break_continue(parser_t *parser, ast_block *block, ast_expression **out, bool is_continue)
2514 unsigned int levels = 0;
2515 lex_ctx ctx = parser_ctx(parser);
2516 const char **loops = (is_continue ? parser->continues : parser->breaks);
2518 (void)block; /* not touching */
2519 if (!parser_next(parser)) {
2520 parseerror(parser, "expected semicolon or loop label");
2524 if (parser->tok == TOKEN_IDENT) {
2525 if (!OPTS_FLAG(LOOP_LABELS))
2526 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2527 i = vec_size(loops);
2529 if (loops[i] && !strcmp(loops[i], parser_tokval(parser)))
2532 parseerror(parser, "no such loop to %s: `%s`",
2533 (is_continue ? "continue" : "break out of"),
2534 parser_tokval(parser));
2539 if (!parser_next(parser)) {
2540 parseerror(parser, "expected semicolon");
2545 if (parser->tok != ';') {
2546 parseerror(parser, "expected semicolon");
2550 if (!parser_next(parser))
2551 parseerror(parser, "parse error");
2553 *out = (ast_expression*)ast_breakcont_new(ctx, is_continue, levels);
2557 /* returns true when it was a variable qualifier, false otherwise!
2558 * on error, cvq is set to CV_WRONG
2560 static bool parse_qualifiers(parser_t *parser, bool with_local, int *cvq, bool *noref, bool *is_static, uint32_t *_flags)
2562 bool had_const = false;
2563 bool had_var = false;
2564 bool had_noref = false;
2565 bool had_attrib = false;
2566 bool had_static = false;
2571 if (parser->tok == TOKEN_ATTRIBUTE_OPEN) {
2573 /* parse an attribute */
2574 if (!parser_next(parser)) {
2575 parseerror(parser, "expected attribute after `[[`");
2579 if (!strcmp(parser_tokval(parser), "noreturn")) {
2580 flags |= AST_FLAG_NORETURN;
2581 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2582 parseerror(parser, "`noreturn` attribute has no parameters, expected `]]`");
2587 else if (!strcmp(parser_tokval(parser), "noref")) {
2589 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2590 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2595 else if (!strcmp(parser_tokval(parser), "inline")) {
2596 flags |= AST_FLAG_INLINE;
2597 if (!parser_next(parser) || parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2598 parseerror(parser, "`noref` attribute has no parameters, expected `]]`");
2605 /* Skip tokens until we hit a ]] */
2606 (void)!parsewarning(parser, WARN_UNKNOWN_ATTRIBUTE, "unknown attribute starting with `%s`", parser_tokval(parser));
2607 while (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
2608 if (!parser_next(parser)) {
2609 parseerror(parser, "error inside attribute");
2616 else if (!strcmp(parser_tokval(parser), "static"))
2618 else if (!strcmp(parser_tokval(parser), "const"))
2620 else if (!strcmp(parser_tokval(parser), "var"))
2622 else if (with_local && !strcmp(parser_tokval(parser), "local"))
2624 else if (!strcmp(parser_tokval(parser), "noref"))
2626 else if (!had_const && !had_var && !had_noref && !had_attrib && !had_static && !flags) {
2631 if (!parser_next(parser))
2641 *is_static = had_static;
2645 parseerror(parser, "parse error after variable qualifier");
2650 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out);
2651 static bool parse_switch(parser_t *parser, ast_block *block, ast_expression **out)
2656 /* skip the 'while' and get the body */
2657 if (!parser_next(parser)) {
2658 if (OPTS_FLAG(LOOP_LABELS))
2659 parseerror(parser, "expected loop label or 'switch' operand in parenthesis");
2661 parseerror(parser, "expected 'switch' operand in parenthesis");
2665 if (parser->tok == ':') {
2666 if (!OPTS_FLAG(LOOP_LABELS))
2667 parseerror(parser, "labeled loops not activated, try using -floop-labels");
2668 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2669 parseerror(parser, "expected loop label");
2672 label = util_strdup(parser_tokval(parser));
2673 if (!parser_next(parser)) {
2675 parseerror(parser, "expected 'switch' operand in parenthesis");
2680 if (parser->tok != '(') {
2681 parseerror(parser, "expected 'switch' operand in parenthesis");
2685 vec_push(parser->breaks, label);
2687 rv = parse_switch_go(parser, block, out);
2690 if (vec_last(parser->breaks) != label) {
2691 parseerror(parser, "internal error: label stack corrupted");
2697 vec_pop(parser->breaks);
2702 static bool parse_switch_go(parser_t *parser, ast_block *block, ast_expression **out)
2704 ast_expression *operand;
2707 ast_switch *switchnode;
2708 ast_switch_case swcase;
2711 bool noref, is_static;
2712 uint32_t qflags = 0;
2714 lex_ctx ctx = parser_ctx(parser);
2716 (void)block; /* not touching */
2719 /* parse into the expression */
2720 if (!parser_next(parser)) {
2721 parseerror(parser, "expected switch operand");
2724 /* parse the operand */
2725 operand = parse_expression_leave(parser, false);
2729 switchnode = ast_switch_new(ctx, operand);
2732 if (parser->tok != ')') {
2733 ast_delete(switchnode);
2734 parseerror(parser, "expected closing paren after 'switch' operand");
2738 /* parse over the opening paren */
2739 if (!parser_next(parser) || parser->tok != '{') {
2740 ast_delete(switchnode);
2741 parseerror(parser, "expected list of cases");
2745 if (!parser_next(parser)) {
2746 ast_delete(switchnode);
2747 parseerror(parser, "expected 'case' or 'default'");
2751 /* new block; allow some variables to be declared here */
2752 parser_enterblock(parser);
2755 if (parser->tok == TOKEN_IDENT)
2756 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
2757 if (typevar || parser->tok == TOKEN_TYPENAME) {
2758 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0)) {
2759 ast_delete(switchnode);
2764 if (parse_qualifiers(parser, true, &cvq, &noref, &is_static, &qflags))
2766 if (cvq == CV_WRONG) {
2767 ast_delete(switchnode);
2770 if (!parse_variable(parser, block, false, cvq, NULL, noref, is_static, qflags)) {
2771 ast_delete(switchnode);
2780 while (parser->tok != '}') {
2781 ast_block *caseblock;
2783 if (!strcmp(parser_tokval(parser), "case")) {
2784 if (!parser_next(parser)) {
2785 ast_delete(switchnode);
2786 parseerror(parser, "expected expression for case");
2789 swcase.value = parse_expression_leave(parser, false);
2790 if (!swcase.value) {
2791 ast_delete(switchnode);
2792 parseerror(parser, "expected expression for case");
2795 if (!OPTS_FLAG(RELAXED_SWITCH)) {
2796 if (!ast_istype(swcase.value, ast_value)) { /* || ((ast_value*)swcase.value)->cvq != CV_CONST) { */
2797 parseerror(parser, "case on non-constant values need to be explicitly enabled via -frelaxed-switch");
2803 else if (!strcmp(parser_tokval(parser), "default")) {
2804 swcase.value = NULL;
2805 if (!parser_next(parser)) {
2806 ast_delete(switchnode);
2807 parseerror(parser, "expected colon");
2812 ast_delete(switchnode);
2813 parseerror(parser, "expected 'case' or 'default'");
2817 /* Now the colon and body */
2818 if (parser->tok != ':') {
2819 if (swcase.value) ast_unref(swcase.value);
2820 ast_delete(switchnode);
2821 parseerror(parser, "expected colon");
2825 if (!parser_next(parser)) {
2826 if (swcase.value) ast_unref(swcase.value);
2827 ast_delete(switchnode);
2828 parseerror(parser, "expected statements or case");
2831 caseblock = ast_block_new(parser_ctx(parser));
2833 if (swcase.value) ast_unref(swcase.value);
2834 ast_delete(switchnode);
2837 swcase.code = (ast_expression*)caseblock;
2838 vec_push(switchnode->cases, swcase);
2840 ast_expression *expr;
2841 if (parser->tok == '}')
2843 if (parser->tok == TOKEN_KEYWORD) {
2844 if (!strcmp(parser_tokval(parser), "case") ||
2845 !strcmp(parser_tokval(parser), "default"))
2850 if (!parse_statement(parser, caseblock, &expr, true)) {
2851 ast_delete(switchnode);
2856 if (!ast_block_add_expr(caseblock, expr)) {
2857 ast_delete(switchnode);
2863 parser_leaveblock(parser);
2866 if (parser->tok != '}') {
2867 ast_delete(switchnode);
2868 parseerror(parser, "expected closing paren of case list");
2871 if (!parser_next(parser)) {
2872 ast_delete(switchnode);
2873 parseerror(parser, "parse error after switch");
2876 *out = (ast_expression*)switchnode;
2880 static bool parse_goto(parser_t *parser, ast_expression **out)
2885 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2886 parseerror(parser, "expected label name after `goto`");
2890 gt = ast_goto_new(parser_ctx(parser), parser_tokval(parser));
2892 for (i = 0; i < vec_size(parser->labels); ++i) {
2893 if (!strcmp(parser->labels[i]->name, parser_tokval(parser))) {
2894 ast_goto_set_label(gt, parser->labels[i]);
2898 if (i == vec_size(parser->labels))
2899 vec_push(parser->gotos, gt);
2901 if (!parser_next(parser) || parser->tok != ';') {
2902 parseerror(parser, "semicolon expected after goto label");
2905 if (!parser_next(parser)) {
2906 parseerror(parser, "parse error after goto");
2910 *out = (ast_expression*)gt;
2914 static bool parse_skipwhite(parser_t *parser)
2917 if (!parser_next(parser))
2919 } while (parser->tok == TOKEN_WHITE && parser->tok < TOKEN_ERROR);
2920 return parser->tok < TOKEN_ERROR;
2923 static bool parse_eol(parser_t *parser)
2925 if (!parse_skipwhite(parser))
2927 return parser->tok == TOKEN_EOL;
2930 static bool parse_pragma_do(parser_t *parser)
2932 if (!parser_next(parser) ||
2933 parser->tok != TOKEN_IDENT ||
2934 strcmp(parser_tokval(parser), "pragma"))
2936 parseerror(parser, "expected `pragma` keyword after `#`, got `%s`", parser_tokval(parser));
2939 if (!parse_skipwhite(parser) || parser->tok != TOKEN_IDENT) {
2940 parseerror(parser, "expected pragma, got `%s`", parser_tokval(parser));
2944 if (!strcmp(parser_tokval(parser), "noref")) {
2945 if (!parse_skipwhite(parser) || parser->tok != TOKEN_INTCONST) {
2946 parseerror(parser, "`noref` pragma requires an argument: 0 or 1");
2949 parser->noref = !!parser_token(parser)->constval.i;
2950 if (!parse_eol(parser)) {
2951 parseerror(parser, "parse error after `noref` pragma");
2957 (void)!parsewarning(parser, WARN_UNKNOWN_PRAGMAS, "ignoring #pragma %s", parser_tokval(parser));
2964 static bool parse_pragma(parser_t *parser)
2967 parser->lex->flags.preprocessing = true;
2968 parser->lex->flags.mergelines = true;
2969 rv = parse_pragma_do(parser);
2970 if (parser->tok != TOKEN_EOL) {
2971 parseerror(parser, "junk after pragma");
2974 parser->lex->flags.preprocessing = false;
2975 parser->lex->flags.mergelines = false;
2976 if (!parser_next(parser)) {
2977 parseerror(parser, "parse error after pragma");
2983 static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases)
2985 bool noref, is_static;
2987 uint32_t qflags = 0;
2988 ast_value *typevar = NULL;
2992 if (parser->tok == TOKEN_IDENT)
2993 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
2995 if (typevar || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
2997 /* local variable */
2999 parseerror(parser, "cannot declare a variable from here");
3002 if (opts.standard == COMPILER_QCC) {
3003 if (parsewarning(parser, WARN_EXTENSIONS, "missing 'local' keyword when declaring a local variable"))
3006 if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0))
3010 else if (parse_qualifiers(parser, !!block, &cvq, &noref, &is_static, &qflags))
3012 if (cvq == CV_WRONG)
3014 return parse_variable(parser, block, true, cvq, NULL, noref, is_static, qflags);
3016 else if (parser->tok == TOKEN_KEYWORD)
3018 if (!strcmp(parser_tokval(parser), "__builtin_debug_printtype"))
3023 if (!parser_next(parser)) {
3024 parseerror(parser, "parse error after __builtin_debug_printtype");
3028 if (parser->tok == TOKEN_IDENT && (tdef = parser_find_typedef(parser, parser_tokval(parser), 0)))
3030 ast_type_to_string((ast_expression*)tdef, ty, sizeof(ty));
3031 con_out("__builtin_debug_printtype: `%s`=`%s`\n", tdef->name, ty);
3032 if (!parser_next(parser)) {
3033 parseerror(parser, "parse error after __builtin_debug_printtype typename argument");
3039 if (!parse_statement(parser, block, out, allow_cases))
3042 con_out("__builtin_debug_printtype: got no output node\n");
3045 ast_type_to_string(*out, ty, sizeof(ty));
3046 con_out("__builtin_debug_printtype: `%s`\n", ty);
3051 else if (!strcmp(parser_tokval(parser), "return"))
3053 return parse_return(parser, block, out);
3055 else if (!strcmp(parser_tokval(parser), "if"))
3057 return parse_if(parser, block, out);
3059 else if (!strcmp(parser_tokval(parser), "while"))
3061 return parse_while(parser, block, out);
3063 else if (!strcmp(parser_tokval(parser), "do"))
3065 return parse_dowhile(parser, block, out);
3067 else if (!strcmp(parser_tokval(parser), "for"))
3069 if (opts.standard == COMPILER_QCC) {
3070 if (parsewarning(parser, WARN_EXTENSIONS, "for loops are not recognized in the original Quake C standard, to enable try an alternate standard --std=?"))
3073 return parse_for(parser, block, out);
3075 else if (!strcmp(parser_tokval(parser), "break"))
3077 return parse_break_continue(parser, block, out, false);
3079 else if (!strcmp(parser_tokval(parser), "continue"))
3081 return parse_break_continue(parser, block, out, true);
3083 else if (!strcmp(parser_tokval(parser), "switch"))
3085 return parse_switch(parser, block, out);
3087 else if (!strcmp(parser_tokval(parser), "case") ||
3088 !strcmp(parser_tokval(parser), "default"))
3091 parseerror(parser, "unexpected 'case' label");
3096 else if (!strcmp(parser_tokval(parser), "goto"))
3098 return parse_goto(parser, out);
3100 else if (!strcmp(parser_tokval(parser), "typedef"))
3102 if (!parser_next(parser)) {
3103 parseerror(parser, "expected type definition after 'typedef'");
3106 return parse_typedef(parser);
3108 parseerror(parser, "Unexpected keyword");
3111 else if (parser->tok == '{')
3114 inner = parse_block(parser);
3117 *out = (ast_expression*)inner;
3120 else if (parser->tok == ':')
3124 if (!parser_next(parser)) {
3125 parseerror(parser, "expected label name");
3128 if (parser->tok != TOKEN_IDENT) {
3129 parseerror(parser, "label must be an identifier");
3132 label = ast_label_new(parser_ctx(parser), parser_tokval(parser));
3135 vec_push(parser->labels, label);
3136 *out = (ast_expression*)label;
3137 if (!parser_next(parser)) {
3138 parseerror(parser, "parse error after label");
3141 for (i = 0; i < vec_size(parser->gotos); ++i) {
3142 if (!strcmp(parser->gotos[i]->name, label->name)) {
3143 ast_goto_set_label(parser->gotos[i], label);
3144 vec_remove(parser->gotos, i, 1);
3150 else if (parser->tok == ';')
3152 if (!parser_next(parser)) {
3153 parseerror(parser, "parse error after empty statement");
3160 ast_expression *exp = parse_expression(parser, false);
3164 if (!ast_side_effects(exp)) {
3165 if (genwarning(ast_ctx(exp), WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
3172 static bool parse_block_into(parser_t *parser, ast_block *block)
3176 parser_enterblock(parser);
3178 if (!parser_next(parser)) { /* skip the '{' */
3179 parseerror(parser, "expected function body");
3183 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
3185 ast_expression *expr = NULL;
3186 if (parser->tok == '}')
3189 if (!parse_statement(parser, block, &expr, false)) {
3190 /* parseerror(parser, "parse error"); */
3196 if (!ast_block_add_expr(block, expr)) {
3203 if (parser->tok != '}') {
3206 (void)parser_next(parser);
3210 if (!parser_leaveblock(parser))
3212 return retval && !!block;
3215 static ast_block* parse_block(parser_t *parser)
3218 block = ast_block_new(parser_ctx(parser));
3221 if (!parse_block_into(parser, block)) {
3222 ast_block_delete(block);
3228 static bool parse_statement_or_block(parser_t *parser, ast_expression **out)
3230 if (parser->tok == '{') {
3231 *out = (ast_expression*)parse_block(parser);
3234 return parse_statement(parser, NULL, out, false);
3237 static bool create_vector_members(ast_value *var, ast_member **me)
3240 size_t len = strlen(var->name);
3242 for (i = 0; i < 3; ++i) {
3243 char *name = (char*)mem_a(len+3);
3244 memcpy(name, var->name, len);
3246 name[len+1] = 'x'+i;
3248 me[i] = ast_member_new(ast_ctx(var), (ast_expression*)var, i, name);
3257 do { ast_member_delete(me[--i]); } while(i);
3261 static bool parse_function_body(parser_t *parser, ast_value *var)
3263 ast_block *block = NULL;
3268 ast_expression *framenum = NULL;
3269 ast_expression *nextthink = NULL;
3270 /* None of the following have to be deleted */
3271 ast_expression *fld_think = NULL, *fld_nextthink = NULL, *fld_frame = NULL;
3272 ast_expression *gbl_time = NULL, *gbl_self = NULL;
3273 bool has_frame_think;
3277 has_frame_think = false;
3278 old = parser->function;
3280 if (vec_size(parser->gotos) || vec_size(parser->labels)) {
3281 parseerror(parser, "gotos/labels leaking");
3285 if (var->expression.flags & AST_FLAG_VARIADIC) {
3286 if (parsewarning(parser, WARN_VARIADIC_FUNCTION,
3287 "variadic function with implementation will not be able to access additional parameters"))
3293 if (parser->tok == '[') {
3294 /* got a frame definition: [ framenum, nextthink ]
3295 * this translates to:
3296 * self.frame = framenum;
3297 * self.nextthink = time + 0.1;
3298 * self.think = nextthink;
3302 fld_think = parser_find_field(parser, "think");
3303 fld_nextthink = parser_find_field(parser, "nextthink");
3304 fld_frame = parser_find_field(parser, "frame");
3305 if (!fld_think || !fld_nextthink || !fld_frame) {
3306 parseerror(parser, "cannot use [frame,think] notation without the required fields");
3307 parseerror(parser, "please declare the following entityfields: `frame`, `think`, `nextthink`");
3310 gbl_time = parser_find_global(parser, "time");
3311 gbl_self = parser_find_global(parser, "self");
3312 if (!gbl_time || !gbl_self) {
3313 parseerror(parser, "cannot use [frame,think] notation without the required globals");
3314 parseerror(parser, "please declare the following globals: `time`, `self`");
3318 if (!parser_next(parser))
3321 framenum = parse_expression_leave(parser, true);
3323 parseerror(parser, "expected a framenumber constant in[frame,think] notation");
3326 if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->hasvalue) {
3327 ast_unref(framenum);
3328 parseerror(parser, "framenumber in [frame,think] notation must be a constant");
3332 if (parser->tok != ',') {
3333 ast_unref(framenum);
3334 parseerror(parser, "expected comma after frame number in [frame,think] notation");
3335 parseerror(parser, "Got a %i\n", parser->tok);
3339 if (!parser_next(parser)) {
3340 ast_unref(framenum);
3344 if (parser->tok == TOKEN_IDENT && !parser_find_var(parser, parser_tokval(parser)))
3346 /* qc allows the use of not-yet-declared functions here
3347 * - this automatically creates a prototype */
3348 ast_value *thinkfunc;
3349 ast_expression *functype = fld_think->expression.next;
3351 thinkfunc = ast_value_new(parser_ctx(parser), parser_tokval(parser), functype->expression.vtype);
3352 if (!thinkfunc || !ast_type_adopt(thinkfunc, functype)) {
3353 ast_unref(framenum);
3354 parseerror(parser, "failed to create implicit prototype for `%s`", parser_tokval(parser));
3358 if (!parser_next(parser)) {
3359 ast_unref(framenum);
3360 ast_delete(thinkfunc);
3364 vec_push(parser->globals, (ast_expression*)thinkfunc);
3365 util_htset(parser->htglobals, thinkfunc->name, thinkfunc);
3366 nextthink = (ast_expression*)thinkfunc;
3369 nextthink = parse_expression_leave(parser, true);
3371 ast_unref(framenum);
3372 parseerror(parser, "expected a think-function in [frame,think] notation");
3377 if (!ast_istype(nextthink, ast_value)) {
3378 parseerror(parser, "think-function in [frame,think] notation must be a constant");
3382 if (retval && parser->tok != ']') {
3383 parseerror(parser, "expected closing `]` for [frame,think] notation");
3387 if (retval && !parser_next(parser)) {
3391 if (retval && parser->tok != '{') {
3392 parseerror(parser, "a function body has to be declared after a [frame,think] declaration");
3397 ast_unref(nextthink);
3398 ast_unref(framenum);
3402 has_frame_think = true;
3405 block = ast_block_new(parser_ctx(parser));
3407 parseerror(parser, "failed to allocate block");
3408 if (has_frame_think) {
3409 ast_unref(nextthink);
3410 ast_unref(framenum);
3415 if (has_frame_think) {
3417 ast_expression *self_frame;
3418 ast_expression *self_nextthink;
3419 ast_expression *self_think;
3420 ast_expression *time_plus_1;
3421 ast_store *store_frame;
3422 ast_store *store_nextthink;
3423 ast_store *store_think;
3425 ctx = parser_ctx(parser);
3426 self_frame = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_frame);
3427 self_nextthink = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_nextthink);
3428 self_think = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_think);
3430 time_plus_1 = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F,
3431 gbl_time, (ast_expression*)parser_const_float(parser, 0.1));
3433 if (!self_frame || !self_nextthink || !self_think || !time_plus_1) {
3434 if (self_frame) ast_delete(self_frame);
3435 if (self_nextthink) ast_delete(self_nextthink);
3436 if (self_think) ast_delete(self_think);
3437 if (time_plus_1) ast_delete(time_plus_1);
3443 store_frame = ast_store_new(ctx, INSTR_STOREP_F, self_frame, framenum);
3444 store_nextthink = ast_store_new(ctx, INSTR_STOREP_F, self_nextthink, time_plus_1);
3445 store_think = ast_store_new(ctx, INSTR_STOREP_FNC, self_think, nextthink);
3448 ast_delete(self_frame);
3451 if (!store_nextthink) {
3452 ast_delete(self_nextthink);
3456 ast_delete(self_think);
3460 if (store_frame) ast_delete(store_frame);
3461 if (store_nextthink) ast_delete(store_nextthink);
3462 if (store_think) ast_delete(store_think);
3465 if (!ast_block_add_expr(block, (ast_expression*)store_frame) ||
3466 !ast_block_add_expr(block, (ast_expression*)store_nextthink) ||
3467 !ast_block_add_expr(block, (ast_expression*)store_think))
3474 parseerror(parser, "failed to generate code for [frame,think]");
3475 ast_unref(nextthink);
3476 ast_unref(framenum);
3482 parser_enterblock(parser);
3484 for (parami = 0; parami < vec_size(var->expression.params); ++parami) {
3486 ast_value *param = var->expression.params[parami];
3489 if (param->expression.vtype != TYPE_VECTOR &&
3490 (param->expression.vtype != TYPE_FIELD ||
3491 param->expression.next->expression.vtype != TYPE_VECTOR))
3496 if (!create_vector_members(param, me)) {
3497 ast_block_delete(block);
3501 for (e = 0; e < 3; ++e) {
3502 parser_addlocal(parser, me[e]->name, (ast_expression*)me[e]);
3503 ast_block_collect(block, (ast_expression*)me[e]);
3507 func = ast_function_new(ast_ctx(var), var->name, var);
3509 parseerror(parser, "failed to allocate function for `%s`", var->name);
3510 ast_block_delete(block);
3513 vec_push(parser->functions, func);
3515 parser->function = func;
3516 if (!parse_block_into(parser, block)) {
3517 ast_block_delete(block);
3521 vec_push(func->blocks, block);
3523 parser->function = old;
3524 if (!parser_leaveblock(parser))
3526 if (vec_size(parser->variables) != PARSER_HT_LOCALS) {
3527 parseerror(parser, "internal error: local scopes left");
3531 if (parser->tok == ';')
3532 return parser_next(parser);
3533 else if (opts.standard == COMPILER_QCC)
3534 parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)");
3538 vec_pop(parser->functions);
3539 ast_function_delete(func);
3540 var->constval.vfunc = NULL;
3543 (void)!parser_leaveblock(parser);
3544 parser->function = old;
3548 static ast_expression *array_accessor_split(
3553 ast_expression *left,
3554 ast_expression *right
3560 lex_ctx ctx = ast_ctx(array);
3562 if (!left || !right) {
3563 if (left) ast_delete(left);
3564 if (right) ast_delete(right);
3568 cmp = ast_binary_new(ctx, INSTR_LT,
3569 (ast_expression*)index,
3570 (ast_expression*)parser_const_float(parser, middle));
3574 parseerror(parser, "internal error: failed to create comparison for array setter");
3578 ifthen = ast_ifthen_new(ctx, (ast_expression*)cmp, left, right);
3580 ast_delete(cmp); /* will delete left and right */
3581 parseerror(parser, "internal error: failed to create conditional jump for array setter");
3585 return (ast_expression*)ifthen;
3588 static ast_expression *array_setter_node(parser_t *parser, ast_value *array, ast_value *index, ast_value *value, size_t from, size_t afterend)
3590 lex_ctx ctx = ast_ctx(array);
3592 if (from+1 == afterend) {
3593 /* set this value */
3596 ast_array_index *subscript;
3598 int assignop = type_store_instr[value->expression.vtype];
3600 if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR)
3601 assignop = INSTR_STORE_V;
3603 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
3607 st = ast_store_new(ctx, assignop, (ast_expression*)subscript, (ast_expression*)value);
3609 ast_delete(subscript);
3613 block = ast_block_new(ctx);
3619 if (!ast_block_add_expr(block, (ast_expression*)st)) {
3624 ret = ast_return_new(ctx, NULL);
3630 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
3635 return (ast_expression*)block;
3637 ast_expression *left, *right;
3638 size_t diff = afterend - from;
3639 size_t middle = from + diff/2;
3640 left = array_setter_node(parser, array, index, value, from, middle);
3641 right = array_setter_node(parser, array, index, value, middle, afterend);
3642 return array_accessor_split(parser, array, index, middle, left, right);
3646 static ast_expression *array_field_setter_node(
3655 lex_ctx ctx = ast_ctx(array);
3657 if (from+1 == afterend) {
3658 /* set this value */
3661 ast_entfield *entfield;
3662 ast_array_index *subscript;
3664 int assignop = type_storep_instr[value->expression.vtype];
3666 if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR)
3667 assignop = INSTR_STOREP_V;
3669 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
3673 entfield = ast_entfield_new_force(ctx,
3674 (ast_expression*)entity,
3675 (ast_expression*)subscript,
3676 (ast_expression*)subscript);
3678 ast_delete(subscript);
3682 st = ast_store_new(ctx, assignop, (ast_expression*)entfield, (ast_expression*)value);
3684 ast_delete(entfield);
3688 block = ast_block_new(ctx);
3694 if (!ast_block_add_expr(block, (ast_expression*)st)) {
3699 ret = ast_return_new(ctx, NULL);
3705 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
3710 return (ast_expression*)block;
3712 ast_expression *left, *right;
3713 size_t diff = afterend - from;
3714 size_t middle = from + diff/2;
3715 left = array_field_setter_node(parser, array, entity, index, value, from, middle);
3716 right = array_field_setter_node(parser, array, entity, index, value, middle, afterend);
3717 return array_accessor_split(parser, array, index, middle, left, right);
3721 static ast_expression *array_getter_node(parser_t *parser, ast_value *array, ast_value *index, size_t from, size_t afterend)
3723 lex_ctx ctx = ast_ctx(array);
3725 if (from+1 == afterend) {
3727 ast_array_index *subscript;
3729 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
3733 ret = ast_return_new(ctx, (ast_expression*)subscript);
3735 ast_delete(subscript);
3739 return (ast_expression*)ret;
3741 ast_expression *left, *right;
3742 size_t diff = afterend - from;
3743 size_t middle = from + diff/2;
3744 left = array_getter_node(parser, array, index, from, middle);
3745 right = array_getter_node(parser, array, index, middle, afterend);
3746 return array_accessor_split(parser, array, index, middle, left, right);
3750 static bool parser_create_array_accessor(parser_t *parser, ast_value *array, const char *funcname, ast_value **out)
3752 ast_function *func = NULL;
3753 ast_value *fval = NULL;
3754 ast_block *body = NULL;
3756 fval = ast_value_new(ast_ctx(array), funcname, TYPE_FUNCTION);
3758 parseerror(parser, "failed to create accessor function value");
3762 func = ast_function_new(ast_ctx(array), funcname, fval);
3765 parseerror(parser, "failed to create accessor function node");
3769 body = ast_block_new(ast_ctx(array));
3771 parseerror(parser, "failed to create block for array accessor");
3777 vec_push(func->blocks, body);
3780 vec_push(parser->accessors, fval);
3785 static bool parser_create_array_setter(parser_t *parser, ast_value *array, const char *funcname)
3787 ast_expression *root = NULL;
3788 ast_value *index = NULL;
3789 ast_value *value = NULL;
3793 if (!ast_istype(array->expression.next, ast_value)) {
3794 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
3798 if (!parser_create_array_accessor(parser, array, funcname, &fval))
3800 func = fval->constval.vfunc;
3801 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
3803 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
3804 value = ast_value_copy((ast_value*)array->expression.next);
3806 if (!index || !value) {
3807 parseerror(parser, "failed to create locals for array accessor");
3810 (void)!ast_value_set_name(value, "value"); /* not important */
3811 vec_push(fval->expression.params, index);
3812 vec_push(fval->expression.params, value);
3814 root = array_setter_node(parser, array, index, value, 0, array->expression.count);
3816 parseerror(parser, "failed to build accessor search tree");
3820 array->setter = fval;
3821 return ast_block_add_expr(func->blocks[0], root);
3823 if (index) ast_delete(index);
3824 if (value) ast_delete(value);
3825 if (root) ast_delete(root);
3831 static bool parser_create_array_field_setter(parser_t *parser, ast_value *array, const char *funcname)
3833 ast_expression *root = NULL;
3834 ast_value *entity = NULL;
3835 ast_value *index = NULL;
3836 ast_value *value = NULL;
3840 if (!ast_istype(array->expression.next, ast_value)) {
3841 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
3845 if (!parser_create_array_accessor(parser, array, funcname, &fval))
3847 func = fval->constval.vfunc;
3848 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
3850 entity = ast_value_new(ast_ctx(array), "entity", TYPE_ENTITY);
3851 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
3852 value = ast_value_copy((ast_value*)array->expression.next);
3853 if (!entity || !index || !value) {
3854 parseerror(parser, "failed to create locals for array accessor");
3857 (void)!ast_value_set_name(value, "value"); /* not important */
3858 vec_push(fval->expression.params, entity);
3859 vec_push(fval->expression.params, index);
3860 vec_push(fval->expression.params, value);
3862 root = array_field_setter_node(parser, array, entity, index, value, 0, array->expression.count);
3864 parseerror(parser, "failed to build accessor search tree");
3868 array->setter = fval;
3869 return ast_block_add_expr(func->blocks[0], root);
3871 if (entity) ast_delete(entity);
3872 if (index) ast_delete(index);
3873 if (value) ast_delete(value);
3874 if (root) ast_delete(root);
3880 static bool parser_create_array_getter(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
3882 ast_expression *root = NULL;
3883 ast_value *index = NULL;
3887 /* NOTE: checking array->expression.next rather than elemtype since
3888 * for fields elemtype is a temporary fieldtype.
3890 if (!ast_istype(array->expression.next, ast_value)) {
3891 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
3895 if (!parser_create_array_accessor(parser, array, funcname, &fval))
3897 func = fval->constval.vfunc;
3898 fval->expression.next = ast_type_copy(ast_ctx(array), elemtype);
3900 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
3903 parseerror(parser, "failed to create locals for array accessor");
3906 vec_push(fval->expression.params, index);
3908 root = array_getter_node(parser, array, index, 0, array->expression.count);
3910 parseerror(parser, "failed to build accessor search tree");
3914 array->getter = fval;
3915 return ast_block_add_expr(func->blocks[0], root);
3917 if (index) ast_delete(index);
3918 if (root) ast_delete(root);
3924 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
3925 static ast_value *parse_parameter_list(parser_t *parser, ast_value *var)
3933 bool variadic = false;
3935 ctx = parser_ctx(parser);
3937 /* for the sake of less code we parse-in in this function */
3938 if (!parser_next(parser)) {
3939 parseerror(parser, "expected parameter list");
3945 /* parse variables until we hit a closing paren */
3946 while (parser->tok != ')') {
3948 /* there must be commas between them */
3949 if (parser->tok != ',') {
3950 parseerror(parser, "expected comma or end of parameter list");
3953 if (!parser_next(parser)) {
3954 parseerror(parser, "expected parameter");
3960 if (parser->tok == TOKEN_DOTS) {
3961 /* '...' indicates a varargs function */
3963 if (!parser_next(parser)) {
3964 parseerror(parser, "expected parameter");
3967 if (parser->tok != ')') {
3968 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
3974 /* for anything else just parse a typename */
3975 param = parse_typename(parser, NULL, NULL);
3978 vec_push(params, param);
3979 if (param->expression.vtype >= TYPE_VARIANT) {
3980 char tname[1024]; /* typename is reserved in C++ */
3981 ast_type_to_string((ast_expression*)param, tname, sizeof(tname));
3982 parseerror(parser, "type not supported as part of a parameter list: %s", tname);
3988 if (vec_size(params) == 1 && params[0]->expression.vtype == TYPE_VOID)
3992 if (vec_size(params) > 8 && opts.standard == COMPILER_QCC)
3993 (void)!parsewarning(parser, WARN_EXTENSIONS, "more than 8 parameters are not supported by this standard");
3996 if (!parser_next(parser)) {
3997 parseerror(parser, "parse error after typename");
4001 /* now turn 'var' into a function type */
4002 fval = ast_value_new(ctx, "<type()>", TYPE_FUNCTION);
4003 fval->expression.next = (ast_expression*)var;
4005 fval->expression.flags |= AST_FLAG_VARIADIC;
4008 var->expression.params = params;
4015 for (i = 0; i < vec_size(params); ++i)
4016 ast_delete(params[i]);
4021 static ast_value *parse_arraysize(parser_t *parser, ast_value *var)
4023 ast_expression *cexp;
4024 ast_value *cval, *tmp;
4027 ctx = parser_ctx(parser);
4029 if (!parser_next(parser)) {
4031 parseerror(parser, "expected array-size");
4035 cexp = parse_expression_leave(parser, true);
4037 if (!cexp || !ast_istype(cexp, ast_value)) {
4041 parseerror(parser, "expected array-size as constant positive integer");
4044 cval = (ast_value*)cexp;
4046 tmp = ast_value_new(ctx, "<type[]>", TYPE_ARRAY);
4047 tmp->expression.next = (ast_expression*)var;
4050 if (cval->expression.vtype == TYPE_INTEGER)
4051 tmp->expression.count = cval->constval.vint;
4052 else if (cval->expression.vtype == TYPE_FLOAT)
4053 tmp->expression.count = cval->constval.vfloat;
4057 parseerror(parser, "array-size must be a positive integer constant");
4062 if (parser->tok != ']') {
4064 parseerror(parser, "expected ']' after array-size");
4067 if (!parser_next(parser)) {
4069 parseerror(parser, "error after parsing array size");
4075 /* Parse a complete typename.
4076 * for single-variables (ie. function parameters or typedefs) storebase should be NULL
4077 * but when parsing variables separated by comma
4078 * 'storebase' should point to where the base-type should be kept.
4079 * The base type makes up every bit of type information which comes *before* the
4082 * The following will be parsed in its entirety:
4084 * The 'basetype' in this case is 'void()'
4085 * and if there's a comma after it, say:
4087 * then the type-information 'void()' can be stored in 'storebase'
4089 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef)
4091 ast_value *var, *tmp;
4094 const char *name = NULL;
4095 bool isfield = false;
4096 bool wasarray = false;
4097 size_t morefields = 0;
4099 ctx = parser_ctx(parser);
4101 /* types may start with a dot */
4102 if (parser->tok == '.') {
4104 /* if we parsed a dot we need a typename now */
4105 if (!parser_next(parser)) {
4106 parseerror(parser, "expected typename for field definition");
4110 /* Further dots are handled seperately because they won't be part of the
4113 while (parser->tok == '.') {
4115 if (!parser_next(parser)) {
4116 parseerror(parser, "expected typename for field definition");
4121 if (parser->tok == TOKEN_IDENT)
4122 cached_typedef = parser_find_typedef(parser, parser_tokval(parser), 0);
4123 if (!cached_typedef && parser->tok != TOKEN_TYPENAME) {
4124 parseerror(parser, "expected typename");
4128 /* generate the basic type value */
4129 if (cached_typedef) {
4130 var = ast_value_copy(cached_typedef);
4131 ast_value_set_name(var, "<type(from_def)>");
4133 var = ast_value_new(ctx, "<type>", parser_token(parser)->constval.t);
4135 for (; morefields; --morefields) {
4136 tmp = ast_value_new(ctx, "<.type>", TYPE_FIELD);
4137 tmp->expression.next = (ast_expression*)var;
4141 /* do not yet turn into a field - remember:
4142 * .void() foo; is a field too
4143 * .void()() foo; is a function
4147 if (!parser_next(parser)) {
4149 parseerror(parser, "parse error after typename");
4153 /* an opening paren now starts the parameter-list of a function
4154 * this is where original-QC has parameter lists.
4155 * We allow a single parameter list here.
4156 * Much like fteqcc we don't allow `float()() x`
4158 if (parser->tok == '(') {
4159 var = parse_parameter_list(parser, var);
4164 /* store the base if requested */
4166 *storebase = ast_value_copy(var);
4168 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
4169 tmp->expression.next = (ast_expression*)*storebase;
4174 /* there may be a name now */
4175 if (parser->tok == TOKEN_IDENT) {
4176 name = util_strdup(parser_tokval(parser));
4178 if (!parser_next(parser)) {
4180 parseerror(parser, "error after variable or field declaration");
4185 /* now this may be an array */
4186 if (parser->tok == '[') {
4188 var = parse_arraysize(parser, var);
4193 /* This is the point where we can turn it into a field */
4195 /* turn it into a field if desired */
4196 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
4197 tmp->expression.next = (ast_expression*)var;
4201 /* now there may be function parens again */
4202 if (parser->tok == '(' && opts.standard == COMPILER_QCC)
4203 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4204 if (parser->tok == '(' && wasarray)
4205 parseerror(parser, "arrays as part of a return type is not supported");
4206 while (parser->tok == '(') {
4207 var = parse_parameter_list(parser, var);
4216 /* finally name it */
4218 if (!ast_value_set_name(var, name)) {
4220 parseerror(parser, "internal error: failed to set name");
4223 /* free the name, ast_value_set_name duplicates */
4230 static bool parse_typedef(parser_t *parser)
4232 ast_value *typevar, *oldtype;
4233 ast_expression *old;
4235 typevar = parse_typename(parser, NULL, NULL);
4240 if ( (old = parser_find_var(parser, typevar->name)) ) {
4241 parseerror(parser, "cannot define a type with the same name as a variable: %s\n"
4242 " -> `%s` has been declared here: %s:%i",
4243 typevar->name, ast_ctx(old).file, ast_ctx(old).line);
4244 ast_delete(typevar);
4248 if ( (oldtype = parser_find_typedef(parser, typevar->name, vec_last(parser->_blocktypedefs))) ) {
4249 parseerror(parser, "type `%s` has already been declared here: %s:%i",
4250 typevar->name, ast_ctx(oldtype).file, ast_ctx(oldtype).line);
4251 ast_delete(typevar);
4255 vec_push(parser->_typedefs, typevar);
4256 util_htset(vec_last(parser->typedefs), typevar->name, typevar);
4258 if (parser->tok != ';') {
4259 parseerror(parser, "expected semicolon after typedef");
4262 if (!parser_next(parser)) {
4263 parseerror(parser, "parse error after typedef");
4270 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)
4274 ast_expression *old;
4278 ast_value *basetype = NULL;
4280 bool isparam = false;
4281 bool isvector = false;
4282 bool cleanvar = true;
4283 bool wasarray = false;
4287 if (!localblock && is_static)
4288 parseerror(parser, "`static` qualifier is not supported in global scope");
4290 /* get the first complete variable */
4291 var = parse_typename(parser, &basetype, cached_typedef);
4294 ast_delete(basetype);
4302 /* Part 0: finish the type */
4303 if (parser->tok == '(') {
4304 if (opts.standard == COMPILER_QCC)
4305 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4306 var = parse_parameter_list(parser, var);
4312 /* we only allow 1-dimensional arrays */
4313 if (parser->tok == '[') {
4315 var = parse_arraysize(parser, var);
4321 if (parser->tok == '(' && wasarray) {
4322 parseerror(parser, "arrays as part of a return type is not supported");
4323 /* we'll still parse the type completely for now */
4325 /* for functions returning functions */
4326 while (parser->tok == '(') {
4327 if (opts.standard == COMPILER_QCC)
4328 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
4329 var = parse_parameter_list(parser, var);
4336 var->cvq = qualifier;
4337 /* in a noref section we simply bump the usecount */
4338 if (noref || parser->noref)
4340 var->expression.flags |= qflags;
4343 * check for validity: (end_sys_..., multiple-definitions, prototypes, ...)
4344 * Also: if there was a prototype, `var` will be deleted and set to `proto` which
4345 * is then filled with the previous definition and the parameter-names replaced.
4347 if (!strcmp(var->name, "nil")) {
4348 if (OPTS_FLAG(UNTYPED_NIL)) {
4349 if (!localblock || !OPTS_FLAG(PERMISSIVE))
4350 parseerror(parser, "name `nil` not allowed (try -fpermissive)");
4352 (void)!parsewarning(parser, WARN_RESERVED_NAMES, "variable name `nil` is reserved");
4355 /* Deal with end_sys_ vars */
4357 if (!strcmp(var->name, "end_sys_globals")) {
4359 parser->crc_globals = vec_size(parser->globals);
4362 else if (!strcmp(var->name, "end_sys_fields")) {
4364 parser->crc_fields = vec_size(parser->fields);
4367 if (was_end && var->expression.vtype == TYPE_FIELD) {
4368 if (parsewarning(parser, WARN_END_SYS_FIELDS,
4369 "global '%s' hint should not be a field",
4370 parser_tokval(parser)))
4377 if (!nofields && var->expression.vtype == TYPE_FIELD)
4379 /* deal with field declarations */
4380 old = parser_find_field(parser, var->name);
4382 if (parsewarning(parser, WARN_FIELD_REDECLARED, "field `%s` already declared here: %s:%i",
4383 var->name, ast_ctx(old).file, (int)ast_ctx(old).line))
4392 parseerror(parser, "field `%s` already declared here: %s:%i",
4393 var->name, ast_ctx(old).file, ast_ctx(old).line);
4398 if (opts.standard == COMPILER_QCC &&
4399 (old = parser_find_global(parser, var->name)))
4401 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
4402 parseerror(parser, "field `%s` already declared here: %s:%i",
4403 var->name, ast_ctx(old).file, ast_ctx(old).line);
4410 /* deal with other globals */
4411 old = parser_find_global(parser, var->name);
4412 if (old && var->expression.vtype == TYPE_FUNCTION && old->expression.vtype == TYPE_FUNCTION)
4414 /* This is a function which had a prototype */
4415 if (!ast_istype(old, ast_value)) {
4416 parseerror(parser, "internal error: prototype is not an ast_value");
4420 proto = (ast_value*)old;
4421 if (!ast_compare_type((ast_expression*)proto, (ast_expression*)var)) {
4422 parseerror(parser, "conflicting types for `%s`, previous declaration was here: %s:%i",
4424 ast_ctx(proto).file, ast_ctx(proto).line);
4428 /* we need the new parameter-names */
4429 for (i = 0; i < vec_size(proto->expression.params); ++i)
4430 ast_value_set_name(proto->expression.params[i], var->expression.params[i]->name);
4438 if (opts.standard == COMPILER_GMQCC) {
4439 parseerror(parser, "global `%s` already declared here: %s:%i",
4440 var->name, ast_ctx(old).file, ast_ctx(old).line);
4444 if (parsewarning(parser, WARN_DOUBLE_DECLARATION,
4445 "global `%s` already declared here: %s:%i",
4446 var->name, ast_ctx(old).file, ast_ctx(old).line))
4451 proto = (ast_value*)old;
4452 if (!ast_istype(old, ast_value)) {
4453 parseerror(parser, "internal error: not an ast_value");
4462 if (opts.standard == COMPILER_QCC &&
4463 (old = parser_find_field(parser, var->name)))
4465 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
4466 parseerror(parser, "global `%s` already declared here: %s:%i",
4467 var->name, ast_ctx(old).file, ast_ctx(old).line);
4474 else /* it's not a global */
4476 old = parser_find_local(parser, var->name, vec_size(parser->variables)-1, &isparam);
4477 if (old && !isparam) {
4478 parseerror(parser, "local `%s` already declared here: %s:%i",
4479 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
4483 old = parser_find_local(parser, var->name, 0, &isparam);
4484 if (old && isparam) {
4485 if (parsewarning(parser, WARN_LOCAL_SHADOWS,
4486 "local `%s` is shadowing a parameter", var->name))
4488 parseerror(parser, "local `%s` already declared here: %s:%i",
4489 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
4493 if (opts.standard != COMPILER_GMQCC) {
4502 * Create the global/local, and deal with vector types.
4505 if (var->expression.vtype == TYPE_VECTOR)
4507 else if (var->expression.vtype == TYPE_FIELD &&
4508 var->expression.next->expression.vtype == TYPE_VECTOR)
4512 if (!create_vector_members(var, me)) {
4519 /* deal with global variables, fields, functions */
4520 if (!nofields && var->expression.vtype == TYPE_FIELD && parser->tok != '=') {
4521 var->isfield = true;
4522 vec_push(parser->fields, (ast_expression*)var);
4523 util_htset(parser->htfields, var->name, var);
4525 for (i = 0; i < 3; ++i) {
4526 vec_push(parser->fields, (ast_expression*)me[i]);
4527 util_htset(parser->htfields, me[i]->name, me[i]);
4532 vec_push(parser->globals, (ast_expression*)var);
4533 util_htset(parser->htglobals, var->name, var);
4535 for (i = 0; i < 3; ++i) {
4536 vec_push(parser->globals, (ast_expression*)me[i]);
4537 util_htset(parser->htglobals, me[i]->name, me[i]);
4543 /* a static adds itself to be generated like any other global
4544 * but is added to the local namespace instead
4546 char *defname = NULL;
4547 size_t prefix_len, ln;
4549 ln = strlen(parser->function->name);
4550 vec_append(defname, ln, parser->function->name);
4552 vec_append(defname, 2, "::");
4553 /* remember the length up to here */
4554 prefix_len = vec_size(defname);
4556 /* Add it to the local scope */
4557 util_htset(vec_last(parser->variables), var->name, (void*)var);
4558 /* now rename the global */
4559 ln = strlen(var->name);
4560 vec_append(defname, ln, var->name);
4561 ast_value_set_name(var, defname);
4563 /* push it to the to-be-generated globals */
4564 vec_push(parser->globals, (ast_expression*)var);
4566 /* same game for the vector members */
4568 for (i = 0; i < 3; ++i) {
4569 util_htset(vec_last(parser->variables), me[i]->name, (void*)(me[i]));
4571 vec_shrinkto(defname, prefix_len);
4572 ln = strlen(me[i]->name);
4573 vec_append(defname, ln, me[i]->name);
4574 ast_member_set_name(me[i], defname);
4576 vec_push(parser->globals, (ast_expression*)me[i]);
4581 vec_push(localblock->locals, var);
4582 parser_addlocal(parser, var->name, (ast_expression*)var);
4584 for (i = 0; i < 3; ++i) {
4585 parser_addlocal(parser, me[i]->name, (ast_expression*)me[i]);
4586 ast_block_collect(localblock, (ast_expression*)me[i]);
4592 me[0] = me[1] = me[2] = NULL;
4597 if (var->expression.vtype == TYPE_ARRAY) {
4599 snprintf(name, sizeof(name), "%s##SET", var->name);
4600 if (!parser_create_array_setter(parser, var, name))
4602 snprintf(name, sizeof(name), "%s##GET", var->name);
4603 if (!parser_create_array_getter(parser, var, var->expression.next, name))
4606 else if (!localblock && !nofields &&
4607 var->expression.vtype == TYPE_FIELD &&
4608 var->expression.next->expression.vtype == TYPE_ARRAY)
4611 ast_expression *telem;
4613 ast_value *array = (ast_value*)var->expression.next;
4615 if (!ast_istype(var->expression.next, ast_value)) {
4616 parseerror(parser, "internal error: field element type must be an ast_value");
4620 snprintf(name, sizeof(name), "%s##SETF", var->name);
4621 if (!parser_create_array_field_setter(parser, array, name))
4624 telem = ast_type_copy(ast_ctx(var), array->expression.next);
4625 tfield = ast_value_new(ast_ctx(var), "<.type>", TYPE_FIELD);
4626 tfield->expression.next = telem;
4627 snprintf(name, sizeof(name), "%s##GETFP", var->name);
4628 if (!parser_create_array_getter(parser, array, (ast_expression*)tfield, name)) {
4636 if (parser->tok == ';') {
4637 ast_delete(basetype);
4638 if (!parser_next(parser)) {
4639 parseerror(parser, "error after variable declaration");
4645 if (parser->tok == ',')
4649 if (!var || (!localblock && !nofields && basetype->expression.vtype == TYPE_FIELD)) {
4652 parseerror(parser, "missing comma or semicolon while parsing variables");
4656 if (localblock && opts.standard == COMPILER_QCC) {
4657 if (parsewarning(parser, WARN_LOCAL_CONSTANTS,
4658 "initializing expression turns variable `%s` into a constant in this standard",
4665 if (parser->tok != '{') {
4666 if (parser->tok != '=') {
4667 parseerror(parser, "missing semicolon or initializer, got: `%s`", parser_tokval(parser));
4671 if (!parser_next(parser)) {
4672 parseerror(parser, "error parsing initializer");
4676 else if (opts.standard == COMPILER_QCC) {
4677 parseerror(parser, "expected '=' before function body in this standard");
4680 if (parser->tok == '#') {
4681 ast_function *func = NULL;
4684 parseerror(parser, "cannot declare builtins within functions");
4687 if (var->expression.vtype != TYPE_FUNCTION) {
4688 parseerror(parser, "unexpected builtin number, '%s' is not a function", var->name);
4691 if (!parser_next(parser)) {
4692 parseerror(parser, "expected builtin number");
4695 if (parser->tok != TOKEN_INTCONST) {
4696 parseerror(parser, "builtin number must be an integer constant");
4699 if (parser_token(parser)->constval.i < 0) {
4700 parseerror(parser, "builtin number must be an integer greater than zero");
4704 if (var->hasvalue) {
4705 (void)!parsewarning(parser, WARN_DOUBLE_DECLARATION,
4706 "builtin `%s` has already been defined\n"
4707 " -> previous declaration here: %s:%i",
4708 var->name, ast_ctx(var).file, (int)ast_ctx(var).line);
4712 func = ast_function_new(ast_ctx(var), var->name, var);
4714 parseerror(parser, "failed to allocate function for `%s`", var->name);
4717 vec_push(parser->functions, func);
4719 func->builtin = -parser_token(parser)->constval.i-1;
4722 if (!parser_next(parser)) {
4723 parseerror(parser, "expected comma or semicolon");
4725 ast_function_delete(func);
4726 var->constval.vfunc = NULL;
4730 else if (parser->tok == '{' || parser->tok == '[')
4733 parseerror(parser, "cannot declare functions within functions");
4738 ast_ctx(proto) = parser_ctx(parser);
4740 if (!parse_function_body(parser, var))
4742 ast_delete(basetype);
4743 for (i = 0; i < vec_size(parser->gotos); ++i)
4744 parseerror(parser, "undefined label: `%s`", parser->gotos[i]->name);
4745 vec_free(parser->gotos);
4746 vec_free(parser->labels);
4749 ast_expression *cexp;
4752 cexp = parse_expression_leave(parser, true);
4757 cval = (ast_value*)cexp;
4758 if (!ast_istype(cval, ast_value) || ((!cval->hasvalue || cval->cvq != CV_CONST) && !cval->isfield))
4759 parseerror(parser, "cannot initialize a global constant variable with a non-constant expression");
4762 if (opts.standard != COMPILER_GMQCC &&
4763 !OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
4764 qualifier != CV_VAR)
4766 var->cvq = CV_CONST;
4768 var->hasvalue = true;
4769 if (cval->expression.vtype == TYPE_STRING)
4770 var->constval.vstring = parser_strdup(cval->constval.vstring);
4771 else if (cval->expression.vtype == TYPE_FIELD)
4772 var->constval.vfield = cval;
4774 memcpy(&var->constval, &cval->constval, sizeof(var->constval));
4779 shunt sy = { NULL, NULL };
4782 vec_push(sy.out, syexp(ast_ctx(var), (ast_expression*)var));
4783 vec_push(sy.out, syexp(ast_ctx(cexp), (ast_expression*)cexp));
4784 vec_push(sy.ops, syop(ast_ctx(var), parser->assign_op));
4785 if (!parser_sy_apply_operator(parser, &sy))
4788 if (vec_size(sy.out) != 1 && vec_size(sy.ops) != 0)
4789 parseerror(parser, "internal error: leaked operands");
4790 if (!ast_block_add_expr(localblock, (ast_expression*)sy.out[0].out))
4800 if (parser->tok == ',') {
4801 if (!parser_next(parser)) {
4802 parseerror(parser, "expected another variable");
4806 if (parser->tok != TOKEN_IDENT) {
4807 parseerror(parser, "expected another variable");
4810 var = ast_value_copy(basetype);
4812 ast_value_set_name(var, parser_tokval(parser));
4813 if (!parser_next(parser)) {
4814 parseerror(parser, "error parsing variable declaration");
4820 if (parser->tok != ';') {
4821 parseerror(parser, "missing semicolon after variables");
4825 if (!parser_next(parser)) {
4826 parseerror(parser, "parse error after variable declaration");
4830 ast_delete(basetype);
4834 if (cleanvar && var)
4836 ast_delete(basetype);
4840 ast_delete(basetype);
4841 if (cleanvar && var)
4843 if (me[0]) ast_member_delete(me[0]);
4844 if (me[1]) ast_member_delete(me[1]);
4845 if (me[2]) ast_member_delete(me[2]);
4849 static bool parser_global_statement(parser_t *parser)
4853 bool is_static = false;
4854 uint32_t qflags = 0;
4855 ast_value *istype = NULL;
4857 if (parser->tok == TOKEN_IDENT)
4858 istype = parser_find_typedef(parser, parser_tokval(parser), 0);
4860 if (istype || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
4862 return parse_variable(parser, NULL, false, CV_NONE, istype, false, false, 0);
4864 else if (parse_qualifiers(parser, false, &cvq, &noref, &is_static, &qflags))
4866 if (cvq == CV_WRONG)
4868 return parse_variable(parser, NULL, true, cvq, NULL, noref, is_static, qflags);
4870 else if (parser->tok == TOKEN_KEYWORD)
4872 if (!strcmp(parser_tokval(parser), "typedef")) {
4873 if (!parser_next(parser)) {
4874 parseerror(parser, "expected type definition after 'typedef'");
4877 return parse_typedef(parser);
4879 parseerror(parser, "unrecognized keyword `%s`", parser_tokval(parser));
4882 else if (parser->tok == '#')
4884 return parse_pragma(parser);
4886 else if (parser->tok == '$')
4888 if (!parser_next(parser)) {
4889 parseerror(parser, "parse error");
4895 parseerror(parser, "unexpected token: %s", parser->lex->tok.value);
4901 static uint16_t progdefs_crc_sum(uint16_t old, const char *str)
4903 return util_crc16(old, str, strlen(str));
4906 static void progdefs_crc_file(const char *str)
4908 /* write to progdefs.h here */
4912 static uint16_t progdefs_crc_both(uint16_t old, const char *str)
4914 old = progdefs_crc_sum(old, str);
4915 progdefs_crc_file(str);
4919 static void generate_checksum(parser_t *parser)
4921 uint16_t crc = 0xFFFF;
4925 crc = progdefs_crc_both(crc, "\n/* file generated by qcc, do not modify */\n\ntypedef struct\n{");
4926 crc = progdefs_crc_sum(crc, "\tint\tpad[28];\n");
4928 progdefs_crc_file("\tint\tpad;\n");
4929 progdefs_crc_file("\tint\tofs_return[3];\n");
4930 progdefs_crc_file("\tint\tofs_parm0[3];\n");
4931 progdefs_crc_file("\tint\tofs_parm1[3];\n");
4932 progdefs_crc_file("\tint\tofs_parm2[3];\n");
4933 progdefs_crc_file("\tint\tofs_parm3[3];\n");
4934 progdefs_crc_file("\tint\tofs_parm4[3];\n");
4935 progdefs_crc_file("\tint\tofs_parm5[3];\n");
4936 progdefs_crc_file("\tint\tofs_parm6[3];\n");
4937 progdefs_crc_file("\tint\tofs_parm7[3];\n");
4939 for (i = 0; i < parser->crc_globals; ++i) {
4940 if (!ast_istype(parser->globals[i], ast_value))
4942 value = (ast_value*)(parser->globals[i]);
4943 switch (value->expression.vtype) {
4944 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
4945 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
4946 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
4947 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
4949 crc = progdefs_crc_both(crc, "\tint\t");
4952 crc = progdefs_crc_both(crc, value->name);
4953 crc = progdefs_crc_both(crc, ";\n");
4955 crc = progdefs_crc_both(crc, "} globalvars_t;\n\ntypedef struct\n{\n");
4956 for (i = 0; i < parser->crc_fields; ++i) {
4957 if (!ast_istype(parser->fields[i], ast_value))
4959 value = (ast_value*)(parser->fields[i]);
4960 switch (value->expression.next->expression.vtype) {
4961 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
4962 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
4963 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
4964 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
4966 crc = progdefs_crc_both(crc, "\tint\t");
4969 crc = progdefs_crc_both(crc, value->name);
4970 crc = progdefs_crc_both(crc, ";\n");
4972 crc = progdefs_crc_both(crc, "} entvars_t;\n\n");
4977 static parser_t *parser;
4984 parser = (parser_t*)mem_a(sizeof(parser_t));
4988 memset(parser, 0, sizeof(*parser));
4990 for (i = 0; i < operator_count; ++i) {
4991 if (operators[i].id == opid1('=')) {
4992 parser->assign_op = operators+i;
4996 if (!parser->assign_op) {
4997 printf("internal error: initializing parser: failed to find assign operator\n");
5002 vec_push(parser->variables, parser->htfields = util_htnew(PARSER_HT_SIZE));
5003 vec_push(parser->variables, parser->htglobals = util_htnew(PARSER_HT_SIZE));
5004 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
5005 vec_push(parser->_blocktypedefs, 0);
5007 empty_ctx.file = "<internal>";
5009 parser->nil = ast_value_new(empty_ctx, "nil", TYPE_NIL);
5010 if (OPTS_FLAG(UNTYPED_NIL))
5011 util_htset(parser->htglobals, "nil", (void*)parser->nil);
5015 bool parser_compile()
5017 /* initial lexer/parser state */
5018 parser->lex->flags.noops = true;
5020 if (parser_next(parser))
5022 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
5024 if (!parser_global_statement(parser)) {
5025 if (parser->tok == TOKEN_EOF)
5026 parseerror(parser, "unexpected eof");
5027 else if (compile_errors)
5028 parseerror(parser, "there have been errors, bailing out");
5029 lex_close(parser->lex);
5035 parseerror(parser, "parse error");
5036 lex_close(parser->lex);
5041 lex_close(parser->lex);
5044 return !compile_errors;
5047 bool parser_compile_file(const char *filename)
5049 parser->lex = lex_open(filename);
5051 con_err("failed to open file \"%s\"\n", filename);
5054 return parser_compile();
5057 bool parser_compile_string(const char *name, const char *str, size_t len)
5059 parser->lex = lex_open_string(str, len, name);
5061 con_err("failed to create lexer for string \"%s\"\n", name);
5064 return parser_compile();
5067 void parser_cleanup()
5070 for (i = 0; i < vec_size(parser->accessors); ++i) {
5071 ast_delete(parser->accessors[i]->constval.vfunc);
5072 parser->accessors[i]->constval.vfunc = NULL;
5073 ast_delete(parser->accessors[i]);
5075 for (i = 0; i < vec_size(parser->functions); ++i) {
5076 ast_delete(parser->functions[i]);
5078 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
5079 ast_delete(parser->imm_vector[i]);
5081 for (i = 0; i < vec_size(parser->imm_string); ++i) {
5082 ast_delete(parser->imm_string[i]);
5084 for (i = 0; i < vec_size(parser->imm_float); ++i) {
5085 ast_delete(parser->imm_float[i]);
5087 for (i = 0; i < vec_size(parser->fields); ++i) {
5088 ast_delete(parser->fields[i]);
5090 for (i = 0; i < vec_size(parser->globals); ++i) {
5091 ast_delete(parser->globals[i]);
5093 vec_free(parser->accessors);
5094 vec_free(parser->functions);
5095 vec_free(parser->imm_vector);
5096 vec_free(parser->imm_string);
5097 vec_free(parser->imm_float);
5098 vec_free(parser->globals);
5099 vec_free(parser->fields);
5101 for (i = 0; i < vec_size(parser->variables); ++i)
5102 util_htdel(parser->variables[i]);
5103 vec_free(parser->variables);
5104 vec_free(parser->_blocklocals);
5105 vec_free(parser->_locals);
5107 for (i = 0; i < vec_size(parser->_typedefs); ++i)
5108 ast_delete(parser->_typedefs[i]);
5109 vec_free(parser->_typedefs);
5110 for (i = 0; i < vec_size(parser->typedefs); ++i)
5111 util_htdel(parser->typedefs[i]);
5112 vec_free(parser->typedefs);
5113 vec_free(parser->_blocktypedefs);
5115 vec_free(parser->_block_ctx);
5117 vec_free(parser->labels);
5118 vec_free(parser->gotos);
5119 vec_free(parser->breaks);
5120 vec_free(parser->continues);
5125 bool parser_finish(const char *output)
5131 if (compile_errors) {
5132 con_out("*** there were compile errors\n");
5136 ir = ir_builder_new("gmqcc_out");
5138 con_out("failed to allocate builder\n");
5142 for (i = 0; i < vec_size(parser->fields); ++i) {
5145 if (!ast_istype(parser->fields[i], ast_value))
5147 field = (ast_value*)parser->fields[i];
5148 hasvalue = field->hasvalue;
5149 field->hasvalue = false;
5150 if (!ast_global_codegen((ast_value*)field, ir, true)) {
5151 con_out("failed to generate field %s\n", field->name);
5152 ir_builder_delete(ir);
5157 ast_expression *subtype;
5158 field->hasvalue = true;
5159 subtype = field->expression.next;
5160 ifld = ir_builder_create_field(ir, field->name, subtype->expression.vtype);
5161 if (subtype->expression.vtype == TYPE_FIELD)
5162 ifld->fieldtype = subtype->expression.next->expression.vtype;
5163 else if (subtype->expression.vtype == TYPE_FUNCTION)
5164 ifld->outtype = subtype->expression.next->expression.vtype;
5165 (void)!ir_value_set_field(field->ir_v, ifld);
5168 for (i = 0; i < vec_size(parser->globals); ++i) {
5170 if (!ast_istype(parser->globals[i], ast_value))
5172 asvalue = (ast_value*)(parser->globals[i]);
5173 if (!asvalue->uses && !asvalue->hasvalue && asvalue->expression.vtype != TYPE_FUNCTION) {
5174 retval = retval && !genwarning(ast_ctx(asvalue), WARN_UNUSED_VARIABLE,
5175 "unused global: `%s`", asvalue->name);
5177 if (!ast_global_codegen(asvalue, ir, false)) {
5178 con_out("failed to generate global %s\n", asvalue->name);
5179 ir_builder_delete(ir);
5183 for (i = 0; i < vec_size(parser->imm_float); ++i) {
5184 if (!ast_global_codegen(parser->imm_float[i], ir, false)) {
5185 con_out("failed to generate global %s\n", parser->imm_float[i]->name);
5186 ir_builder_delete(ir);
5190 for (i = 0; i < vec_size(parser->imm_string); ++i) {
5191 if (!ast_global_codegen(parser->imm_string[i], ir, false)) {
5192 con_out("failed to generate global %s\n", parser->imm_string[i]->name);
5193 ir_builder_delete(ir);
5197 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
5198 if (!ast_global_codegen(parser->imm_vector[i], ir, false)) {
5199 con_out("failed to generate global %s\n", parser->imm_vector[i]->name);
5200 ir_builder_delete(ir);
5204 for (i = 0; i < vec_size(parser->globals); ++i) {
5206 if (!ast_istype(parser->globals[i], ast_value))
5208 asvalue = (ast_value*)(parser->globals[i]);
5209 if (asvalue->cvq == CV_CONST && !asvalue->hasvalue)
5210 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_CONSTANT,
5211 "uninitialized constant: `%s`",
5213 else if ((asvalue->cvq == CV_NONE || asvalue->cvq == CV_CONST) && !asvalue->hasvalue)
5214 (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_GLOBAL,
5215 "uninitialized global: `%s`",
5217 if (!ast_generate_accessors(asvalue, ir)) {
5218 ir_builder_delete(ir);
5222 for (i = 0; i < vec_size(parser->fields); ++i) {
5224 asvalue = (ast_value*)(parser->fields[i]->expression.next);
5226 if (!ast_istype((ast_expression*)asvalue, ast_value))
5228 if (asvalue->expression.vtype != TYPE_ARRAY)
5230 if (!ast_generate_accessors(asvalue, ir)) {
5231 ir_builder_delete(ir);
5235 for (i = 0; i < vec_size(parser->functions); ++i) {
5236 if (!ast_function_codegen(parser->functions[i], ir)) {
5237 con_out("failed to generate function %s\n", parser->functions[i]->name);
5238 ir_builder_delete(ir);
5243 ir_builder_dump(ir, con_out);
5244 for (i = 0; i < vec_size(parser->functions); ++i) {
5245 if (!ir_function_finalize(parser->functions[i]->ir_func)) {
5246 con_out("failed to finalize function %s\n", parser->functions[i]->name);
5247 ir_builder_delete(ir);
5252 if (compile_Werrors) {
5253 con_out("*** there were warnings treated as errors\n");
5254 compile_show_werrors();
5260 ir_builder_dump(ir, con_out);
5262 generate_checksum(parser);
5264 if (!ir_builder_generate(ir, output)) {
5265 con_out("*** failed to generate output file\n");
5266 ir_builder_delete(ir);
5271 ir_builder_delete(ir);