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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
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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 #define PARSER_HT_FIELDS 0
30 #define PARSER_HT_GLOBALS 1
31 /* beginning of locals */
32 #define PARSER_HT_LOCALS 2
34 #define PARSER_HT_SIZE 1024
35 #define TYPEDEF_HT_SIZE 16
41 ast_expression **globals;
42 ast_expression **fields;
43 ast_function **functions;
44 ast_value **imm_float;
45 ast_value **imm_string;
46 ast_value **imm_vector;
49 /* must be deleted first, they reference immediates and values */
50 ast_value **accessors;
52 ast_value *imm_float_zero;
53 ast_value *imm_float_one;
54 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 /* A list of hashtables for each scope */
73 /* not to be used directly, we use the hash table */
74 ast_expression **_locals;
76 ast_value **_typedefs;
77 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.
95 enum { POT_PAREN, POT_TERNARY1, POT_TERNARY2 } *pot;
101 static void parser_enterblock(parser_t *parser);
102 static bool parser_leaveblock(parser_t *parser);
103 static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e);
104 static bool parse_typedef(parser_t *parser);
105 static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofields, int qualifier, ast_value *cached_typedef, bool noref);
106 static ast_block* parse_block(parser_t *parser);
107 static bool parse_block_into(parser_t *parser, ast_block *block);
108 static bool parse_statement_or_block(parser_t *parser, ast_expression **out);
109 static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases);
110 static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma);
111 static ast_expression* parse_expression(parser_t *parser, bool stopatcomma);
113 static void parseerror(parser_t *parser, const char *fmt, ...)
120 con_vprintmsg(LVL_ERROR, parser->lex->tok.ctx.file, parser->lex->tok.ctx.line, "parse error", fmt, ap);
124 /* returns true if it counts as an error */
125 static bool GMQCC_WARN parsewarning(parser_t *parser, int warntype, const char *fmt, ...)
130 r = vcompile_warning(parser->lex->tok.ctx, warntype, fmt, ap);
135 static bool GMQCC_WARN genwarning(lex_ctx ctx, int warntype, const char *fmt, ...)
140 r = vcompile_warning(ctx, warntype, fmt, ap);
145 /**********************************************************************
146 * some maths used for constant folding
149 vector vec3_add(vector a, vector b)
158 vector vec3_sub(vector a, vector b)
167 qcfloat vec3_mulvv(vector a, vector b)
169 return (a.x * b.x + a.y * b.y + a.z * b.z);
172 vector vec3_mulvf(vector a, float b)
181 /**********************************************************************
185 bool parser_next(parser_t *parser)
187 /* lex_do kills the previous token */
188 parser->tok = lex_do(parser->lex);
189 if (parser->tok == TOKEN_EOF)
191 if (parser->tok >= TOKEN_ERROR) {
192 parseerror(parser, "lex error");
198 #define parser_tokval(p) ((p)->lex->tok.value)
199 #define parser_token(p) (&((p)->lex->tok))
200 #define parser_ctx(p) ((p)->lex->tok.ctx)
202 static ast_value* parser_const_float(parser_t *parser, double d)
206 for (i = 0; i < vec_size(parser->imm_float); ++i) {
207 const double compare = parser->imm_float[i]->constval.vfloat;
208 if (memcmp((const void*)&compare, (const void *)&d, sizeof(double)) == 0)
209 return parser->imm_float[i];
211 out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_FLOAT);
213 out->hasvalue = true;
214 out->constval.vfloat = d;
215 vec_push(parser->imm_float, out);
219 static ast_value* parser_const_float_0(parser_t *parser)
221 if (!parser->imm_float_zero)
222 parser->imm_float_zero = parser_const_float(parser, 0);
223 return parser->imm_float_zero;
226 static ast_value* parser_const_float_1(parser_t *parser)
228 if (!parser->imm_float_one)
229 parser->imm_float_one = parser_const_float(parser, 1);
230 return parser->imm_float_one;
233 static char *parser_strdup(const char *str)
236 /* actually dup empty strings */
237 char *out = mem_a(1);
241 return util_strdup(str);
244 static ast_value* parser_const_string(parser_t *parser, const char *str, bool dotranslate)
248 for (i = 0; i < vec_size(parser->imm_string); ++i) {
249 if (!strcmp(parser->imm_string[i]->constval.vstring, str))
250 return parser->imm_string[i];
254 snprintf(name, sizeof(name), "dotranslate_%lu", (unsigned long)(parser->translated++));
255 out = ast_value_new(parser_ctx(parser), name, TYPE_STRING);
257 out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_STRING);
259 out->hasvalue = true;
260 out->constval.vstring = parser_strdup(str);
261 vec_push(parser->imm_string, out);
265 static ast_value* parser_const_vector(parser_t *parser, vector v)
269 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
270 if (!memcmp(&parser->imm_vector[i]->constval.vvec, &v, sizeof(v)))
271 return parser->imm_vector[i];
273 out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_VECTOR);
275 out->hasvalue = true;
276 out->constval.vvec = v;
277 vec_push(parser->imm_vector, out);
281 static ast_value* parser_const_vector_f(parser_t *parser, float x, float y, float z)
287 return parser_const_vector(parser, v);
290 static ast_value* parser_const_vector_0(parser_t *parser)
292 if (!parser->imm_vector_zero)
293 parser->imm_vector_zero = parser_const_vector_f(parser, 0, 0, 0);
294 return parser->imm_vector_zero;
297 static ast_expression* parser_find_field(parser_t *parser, const char *name)
299 return util_htget(parser->htfields, name);
302 static ast_expression* parser_find_global(parser_t *parser, const char *name)
304 return util_htget(parser->htglobals, name);
307 static ast_expression* parser_find_param(parser_t *parser, const char *name)
311 if (!parser->function)
313 fun = parser->function->vtype;
314 for (i = 0; i < vec_size(fun->expression.params); ++i) {
315 if (!strcmp(fun->expression.params[i]->name, name))
316 return (ast_expression*)(fun->expression.params[i]);
321 static ast_expression* parser_find_local(parser_t *parser, const char *name, size_t upto, bool *isparam)
326 hash = util_hthash(parser->htglobals, name);
329 for (i = vec_size(parser->variables); i > upto;) {
331 if ( (e = util_htgeth(parser->variables[i], name, hash)) )
335 return parser_find_param(parser, name);
338 static ast_expression* parser_find_var(parser_t *parser, const char *name)
342 v = parser_find_local(parser, name, 0, &dummy);
343 if (!v) v = parser_find_global(parser, name);
347 static ast_value* parser_find_typedef(parser_t *parser, const char *name, size_t upto)
351 hash = util_hthash(parser->typedefs[0], name);
353 for (i = vec_size(parser->typedefs); i > upto;) {
355 if ( (e = (ast_value*)util_htgeth(parser->typedefs[i], name, hash)) )
363 size_t etype; /* 0 = expression, others are operators */
367 ast_block *block; /* for commas and function calls */
376 #define SY_PAREN_EXPR '('
377 #define SY_PAREN_FUNC 'f'
378 #define SY_PAREN_INDEX '['
379 #define SY_PAREN_TERNARY '?'
381 static sy_elem syexp(lex_ctx ctx, ast_expression *v) {
392 static sy_elem syblock(lex_ctx ctx, ast_block *v) {
396 e.out = (ast_expression*)v;
403 static sy_elem syop(lex_ctx ctx, const oper_info *op) {
405 e.etype = 1 + (op - operators);
414 static sy_elem syparen(lex_ctx ctx, int p, size_t off) {
426 # define DEBUGSHUNTDO(x) x
428 # define DEBUGSHUNTDO(x)
431 /* With regular precedence rules, ent.foo[n] is the same as (ent.foo)[n],
432 * so we need to rotate it to become ent.(foo[n]).
434 static bool rotate_entfield_array_index_nodes(ast_expression **out)
436 ast_array_index *index;
437 ast_entfield *entfield;
441 ast_expression *entity;
443 lex_ctx ctx = ast_ctx(*out);
445 if (!ast_istype(*out, ast_array_index))
447 index = (ast_array_index*)*out;
449 if (!ast_istype(index->array, ast_entfield))
451 entfield = (ast_entfield*)index->array;
453 if (!ast_istype(entfield->field, ast_value))
455 field = (ast_value*)entfield->field;
458 entity = entfield->entity;
462 index = ast_array_index_new(ctx, (ast_expression*)field, sub);
463 entfield = ast_entfield_new(ctx, entity, (ast_expression*)index);
464 *out = (ast_expression*)entfield;
469 static bool parser_sy_apply_operator(parser_t *parser, shunt *sy)
473 ast_expression *out = NULL;
474 ast_expression *exprs[3];
475 ast_block *blocks[3];
476 ast_value *asvalue[3];
477 ast_binstore *asbinstore;
478 size_t i, assignop, addop, subop;
479 qcint generated_op = 0;
484 if (!vec_size(sy->ops)) {
485 parseerror(parser, "internal error: missing operator");
489 if (vec_last(sy->ops).paren) {
490 parseerror(parser, "unmatched parenthesis");
494 op = &operators[vec_last(sy->ops).etype - 1];
495 ctx = vec_last(sy->ops).ctx;
497 DEBUGSHUNTDO(con_out("apply %s\n", op->op));
499 if (vec_size(sy->out) < op->operands) {
500 parseerror(parser, "internal error: not enough operands: %i (operator %s (%i))", vec_size(sy->out),
501 op->op, (int)op->id);
505 vec_shrinkby(sy->ops, 1);
507 /* op(:?) has no input and no output */
511 vec_shrinkby(sy->out, op->operands);
512 for (i = 0; i < op->operands; ++i) {
513 exprs[i] = sy->out[vec_size(sy->out)+i].out;
514 blocks[i] = sy->out[vec_size(sy->out)+i].block;
515 asvalue[i] = (ast_value*)exprs[i];
518 if (blocks[0] && !vec_size(blocks[0]->exprs) && op->id != opid1(',')) {
519 parseerror(parser, "internal error: operator cannot be applied on empty blocks");
523 #define NotSameType(T) \
524 (exprs[0]->expression.vtype != exprs[1]->expression.vtype || \
525 exprs[0]->expression.vtype != T)
526 #define CanConstFold1(A) \
527 (ast_istype((A), ast_value) && ((ast_value*)(A))->hasvalue && (((ast_value*)(A))->cvq == CV_CONST))
528 #define CanConstFold(A, B) \
529 (CanConstFold1(A) && CanConstFold1(B))
530 #define ConstV(i) (asvalue[(i)]->constval.vvec)
531 #define ConstF(i) (asvalue[(i)]->constval.vfloat)
532 #define ConstS(i) (asvalue[(i)]->constval.vstring)
536 parseerror(parser, "internal error: unhandled operator: %s (%i)", op->op, (int)op->id);
540 if (exprs[0]->expression.vtype == TYPE_ENTITY) {
541 if (exprs[1]->expression.vtype != TYPE_FIELD) {
542 parseerror(parser, "type error: right hand of member-operand should be an entity-field");
545 out = (ast_expression*)ast_entfield_new(ctx, exprs[0], exprs[1]);
547 else if (exprs[0]->expression.vtype == TYPE_VECTOR) {
548 parseerror(parser, "internal error: vector access is not supposed to be handled at this point");
552 parseerror(parser, "type error: member-of operator on something that is not an entity or vector");
558 if (exprs[0]->expression.vtype != TYPE_ARRAY &&
559 !(exprs[0]->expression.vtype == TYPE_FIELD &&
560 exprs[0]->expression.next->expression.vtype == TYPE_ARRAY))
562 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
563 parseerror(parser, "cannot index value of type %s", ty1);
566 if (exprs[1]->expression.vtype != TYPE_FLOAT) {
567 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
568 parseerror(parser, "index must be of type float, not %s", ty1);
571 out = (ast_expression*)ast_array_index_new(ctx, exprs[0], exprs[1]);
572 if (rotate_entfield_array_index_nodes(&out))
575 /* This is not broken in fteqcc anymore */
576 if (opts.standard != COMPILER_GMQCC) {
577 /* this error doesn't need to make us bail out */
578 (void)!parsewarning(parser, WARN_EXTENSIONS,
579 "accessing array-field members of an entity without parenthesis\n"
580 " -> this is an extension from -std=gmqcc");
588 if (!ast_block_add_expr(blocks[0], exprs[1]))
591 blocks[0] = ast_block_new(ctx);
592 if (!ast_block_add_expr(blocks[0], exprs[0]) ||
593 !ast_block_add_expr(blocks[0], exprs[1]))
598 if (!ast_block_set_type(blocks[0], exprs[1]))
601 vec_push(sy->out, syblock(ctx, blocks[0]));
608 switch (exprs[0]->expression.vtype) {
610 if (CanConstFold1(exprs[0]))
611 out = (ast_expression*)parser_const_float(parser, -ConstF(0));
613 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F,
614 (ast_expression*)parser_const_float_0(parser),
618 if (CanConstFold1(exprs[0]))
619 out = (ast_expression*)parser_const_vector_f(parser,
620 -ConstV(0).x, -ConstV(0).y, -ConstV(0).z);
622 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V,
623 (ast_expression*)parser_const_vector_0(parser),
627 parseerror(parser, "invalid types used in expression: cannot negate type %s",
628 type_name[exprs[0]->expression.vtype]);
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_unary_new(ctx, INSTR_NOT_F, exprs[0]);
642 if (CanConstFold1(exprs[0]))
643 out = (ast_expression*)parser_const_float(parser,
644 (!ConstV(0).x && !ConstV(0).y && !ConstV(0).z));
646 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[0]);
649 if (CanConstFold1(exprs[0]))
650 out = (ast_expression*)parser_const_float(parser, !ConstS(0) || !*ConstS(0));
652 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[0]);
654 /* we don't constant-fold NOT for these types */
656 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_ENT, exprs[0]);
659 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_FNC, exprs[0]);
662 parseerror(parser, "invalid types used in expression: cannot logically negate type %s",
663 type_name[exprs[0]->expression.vtype]);
669 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
670 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
672 parseerror(parser, "invalid types used in expression: cannot add type %s and %s",
673 type_name[exprs[0]->expression.vtype],
674 type_name[exprs[1]->expression.vtype]);
677 switch (exprs[0]->expression.vtype) {
679 if (CanConstFold(exprs[0], exprs[1]))
681 out = (ast_expression*)parser_const_float(parser, ConstF(0) + ConstF(1));
684 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F, exprs[0], exprs[1]);
687 if (CanConstFold(exprs[0], exprs[1]))
688 out = (ast_expression*)parser_const_vector(parser, vec3_add(ConstV(0), ConstV(1)));
690 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_V, exprs[0], exprs[1]);
693 parseerror(parser, "invalid types used in expression: cannot add type %s and %s",
694 type_name[exprs[0]->expression.vtype],
695 type_name[exprs[1]->expression.vtype]);
700 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
701 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
703 parseerror(parser, "invalid types used in expression: cannot subtract type %s from %s",
704 type_name[exprs[1]->expression.vtype],
705 type_name[exprs[0]->expression.vtype]);
708 switch (exprs[0]->expression.vtype) {
710 if (CanConstFold(exprs[0], exprs[1]))
711 out = (ast_expression*)parser_const_float(parser, ConstF(0) - ConstF(1));
713 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F, exprs[0], exprs[1]);
716 if (CanConstFold(exprs[0], exprs[1]))
717 out = (ast_expression*)parser_const_vector(parser, vec3_sub(ConstV(0), ConstV(1)));
719 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V, exprs[0], exprs[1]);
722 parseerror(parser, "invalid types used in expression: cannot subtract type %s from %s",
723 type_name[exprs[1]->expression.vtype],
724 type_name[exprs[0]->expression.vtype]);
729 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype &&
730 exprs[0]->expression.vtype != TYPE_VECTOR &&
731 exprs[0]->expression.vtype != TYPE_FLOAT &&
732 exprs[1]->expression.vtype != TYPE_VECTOR &&
733 exprs[1]->expression.vtype != TYPE_FLOAT)
735 parseerror(parser, "invalid types used in expression: cannot multiply types %s and %s",
736 type_name[exprs[1]->expression.vtype],
737 type_name[exprs[0]->expression.vtype]);
740 switch (exprs[0]->expression.vtype) {
742 if (exprs[1]->expression.vtype == TYPE_VECTOR)
744 if (CanConstFold(exprs[0], exprs[1]))
745 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(1), ConstF(0)));
747 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_FV, exprs[0], exprs[1]);
751 if (CanConstFold(exprs[0], exprs[1]))
752 out = (ast_expression*)parser_const_float(parser, ConstF(0) * ConstF(1));
754 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, exprs[0], exprs[1]);
758 if (exprs[1]->expression.vtype == TYPE_FLOAT)
760 if (CanConstFold(exprs[0], exprs[1]))
761 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(0), ConstF(1)));
763 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_VF, exprs[0], exprs[1]);
767 if (CanConstFold(exprs[0], exprs[1]))
768 out = (ast_expression*)parser_const_float(parser, vec3_mulvv(ConstV(0), ConstV(1)));
770 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
774 parseerror(parser, "invalid types used in expression: cannot multiply types %s and %s",
775 type_name[exprs[1]->expression.vtype],
776 type_name[exprs[0]->expression.vtype]);
781 if (NotSameType(TYPE_FLOAT)) {
782 parseerror(parser, "invalid types used in expression: cannot divide types %s and %s",
783 type_name[exprs[0]->expression.vtype],
784 type_name[exprs[1]->expression.vtype]);
787 if (CanConstFold(exprs[0], exprs[1]))
788 out = (ast_expression*)parser_const_float(parser, ConstF(0) / ConstF(1));
790 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F, exprs[0], exprs[1]);
794 parseerror(parser, "qc does not have a modulo operator");
798 if (NotSameType(TYPE_FLOAT)) {
799 parseerror(parser, "invalid types used in expression: cannot perform bit operations between types %s and %s",
800 type_name[exprs[0]->expression.vtype],
801 type_name[exprs[1]->expression.vtype]);
804 if (CanConstFold(exprs[0], exprs[1]))
805 out = (ast_expression*)parser_const_float(parser,
806 (op->id == opid1('|') ? (float)( ((qcint)ConstF(0)) | ((qcint)ConstF(1)) ) :
807 (float)( ((qcint)ConstF(0)) & ((qcint)ConstF(1)) ) ));
809 out = (ast_expression*)ast_binary_new(ctx,
810 (op->id == opid1('|') ? INSTR_BITOR : INSTR_BITAND),
814 parseerror(parser, "TODO: bitxor");
819 case opid3('<','<','='):
820 case opid3('>','>','='):
821 parseerror(parser, "TODO: shifts");
825 generated_op += 1; /* INSTR_OR */
827 generated_op += INSTR_AND;
829 if (NotSameType(TYPE_FLOAT)) {
830 parseerror(parser, "invalid types used in expression: cannot perform logical operations between types %s and %s",
831 type_name[exprs[0]->expression.vtype],
832 type_name[exprs[1]->expression.vtype]);
833 parseerror(parser, "TODO: logical ops for arbitrary types using INSTR_NOT");
834 parseerror(parser, "TODO: optional early out");
838 if (CanConstFold(exprs[0], exprs[1]))
839 out = (ast_expression*)parser_const_float(parser,
840 (generated_op == INSTR_OR ? (ConstF(0) || ConstF(1)) : (ConstF(0) && ConstF(1))));
842 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
846 if (vec_last(parser->pot) != POT_TERNARY2) {
847 parseerror(parser, "mismatched parenthesis/ternary");
850 vec_pop(parser->pot);
851 if (exprs[1]->expression.vtype != exprs[2]->expression.vtype) {
852 ast_type_to_string(exprs[1], ty1, sizeof(ty1));
853 ast_type_to_string(exprs[2], ty2, sizeof(ty2));
854 parseerror(parser, "operands of ternary expression must have the same type, got %s and %s", ty1, ty2);
857 if (CanConstFold1(exprs[0]))
858 out = (ConstF(0) ? exprs[1] : exprs[2]);
860 out = (ast_expression*)ast_ternary_new(ctx, exprs[0], exprs[1], exprs[2]);
864 generated_op += 1; /* INSTR_GT */
866 generated_op += 1; /* INSTR_LT */
867 case opid2('>', '='):
868 generated_op += 1; /* INSTR_GE */
869 case opid2('<', '='):
870 generated_op += INSTR_LE;
871 if (NotSameType(TYPE_FLOAT)) {
872 parseerror(parser, "invalid types used in expression: cannot perform comparison between types %s and %s",
873 type_name[exprs[0]->expression.vtype],
874 type_name[exprs[1]->expression.vtype]);
877 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
879 case opid2('!', '='):
880 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) {
881 parseerror(parser, "invalid types used in expression: cannot perform comparison between types %s and %s",
882 type_name[exprs[0]->expression.vtype],
883 type_name[exprs[1]->expression.vtype]);
886 out = (ast_expression*)ast_binary_new(ctx, type_ne_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]);
888 case opid2('=', '='):
889 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) {
890 parseerror(parser, "invalid types used in expression: cannot perform comparison between types %s and %s",
891 type_name[exprs[0]->expression.vtype],
892 type_name[exprs[1]->expression.vtype]);
895 out = (ast_expression*)ast_binary_new(ctx, type_eq_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]);
899 if (ast_istype(exprs[0], ast_entfield)) {
900 ast_expression *field = ((ast_entfield*)exprs[0])->field;
901 if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) &&
902 exprs[0]->expression.vtype == TYPE_FIELD &&
903 exprs[0]->expression.next->expression.vtype == TYPE_VECTOR)
905 assignop = type_storep_instr[TYPE_VECTOR];
908 assignop = type_storep_instr[exprs[0]->expression.vtype];
909 if (assignop == AINSTR_END ||
910 !ast_compare_type(field->expression.next, exprs[1]))
912 ast_type_to_string(field->expression.next, ty1, sizeof(ty1));
913 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
914 if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
915 field->expression.next->expression.vtype == TYPE_FUNCTION &&
916 exprs[1]->expression.vtype == TYPE_FUNCTION)
918 if (parsewarning(parser, WARN_ASSIGN_FUNCTION_TYPES,
919 "invalid types in assignment: cannot assign %s to %s", ty2, ty1))
925 parseerror(parser, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
930 if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) &&
931 exprs[0]->expression.vtype == TYPE_FIELD &&
932 exprs[0]->expression.next->expression.vtype == TYPE_VECTOR)
934 assignop = type_store_instr[TYPE_VECTOR];
937 assignop = type_store_instr[exprs[0]->expression.vtype];
940 if (assignop == AINSTR_END) {
941 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
942 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
943 parseerror(parser, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
945 else if (!ast_compare_type(exprs[0], exprs[1])) {
946 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
947 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
948 if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) &&
949 exprs[0]->expression.vtype == TYPE_FUNCTION &&
950 exprs[1]->expression.vtype == TYPE_FUNCTION)
952 if (parsewarning(parser, WARN_ASSIGN_FUNCTION_TYPES,
953 "invalid types in assignment: cannot assign %s to %s", ty2, ty1))
959 parseerror(parser, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
962 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
963 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
965 out = (ast_expression*)ast_store_new(ctx, assignop, exprs[0], exprs[1]);
967 case opid3('+','+','P'):
968 case opid3('-','-','P'):
970 if (exprs[0]->expression.vtype != TYPE_FLOAT) {
971 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
972 parseerror(parser, "invalid type for prefix increment: %s", ty1);
975 if (op->id == opid3('+','+','P'))
979 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
980 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
982 if (ast_istype(exprs[0], ast_entfield)) {
983 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
985 (ast_expression*)parser_const_float_1(parser));
987 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
989 (ast_expression*)parser_const_float_1(parser));
992 case opid3('S','+','+'):
993 case opid3('S','-','-'):
995 if (exprs[0]->expression.vtype != TYPE_FLOAT) {
996 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
997 parseerror(parser, "invalid type for suffix increment: %s", ty1);
1000 if (op->id == opid3('S','+','+')) {
1001 addop = INSTR_ADD_F;
1002 subop = INSTR_SUB_F;
1004 addop = INSTR_SUB_F;
1005 subop = INSTR_ADD_F;
1007 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1008 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1010 if (ast_istype(exprs[0], ast_entfield)) {
1011 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop,
1013 (ast_expression*)parser_const_float_1(parser));
1015 out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop,
1017 (ast_expression*)parser_const_float_1(parser));
1021 out = (ast_expression*)ast_binary_new(ctx, subop,
1023 (ast_expression*)parser_const_float_1(parser));
1025 case opid2('+','='):
1026 case opid2('-','='):
1027 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
1028 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
1030 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1031 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1032 parseerror(parser, "invalid types used in expression: cannot add or subtract type %s and %s",
1036 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1037 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1039 if (ast_istype(exprs[0], ast_entfield))
1040 assignop = type_storep_instr[exprs[0]->expression.vtype];
1042 assignop = type_store_instr[exprs[0]->expression.vtype];
1043 switch (exprs[0]->expression.vtype) {
1045 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1046 (op->id == opid2('+','=') ? INSTR_ADD_F : INSTR_SUB_F),
1047 exprs[0], exprs[1]);
1050 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1051 (op->id == opid2('+','=') ? INSTR_ADD_V : INSTR_SUB_V),
1052 exprs[0], exprs[1]);
1055 parseerror(parser, "invalid types used in expression: cannot add or subtract type %s and %s",
1056 type_name[exprs[0]->expression.vtype],
1057 type_name[exprs[1]->expression.vtype]);
1061 case opid2('*','='):
1062 case opid2('/','='):
1063 if (exprs[1]->expression.vtype != TYPE_FLOAT ||
1064 !(exprs[0]->expression.vtype == TYPE_FLOAT ||
1065 exprs[0]->expression.vtype == TYPE_VECTOR))
1067 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1068 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1069 parseerror(parser, "invalid types used in expression: %s and %s",
1073 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1074 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1076 if (ast_istype(exprs[0], ast_entfield))
1077 assignop = type_storep_instr[exprs[0]->expression.vtype];
1079 assignop = type_store_instr[exprs[0]->expression.vtype];
1080 switch (exprs[0]->expression.vtype) {
1082 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1083 (op->id == opid2('*','=') ? INSTR_MUL_F : INSTR_DIV_F),
1084 exprs[0], exprs[1]);
1087 if (op->id == opid2('*','=')) {
1088 out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
1089 exprs[0], exprs[1]);
1091 /* there's no DIV_VF */
1092 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F,
1093 (ast_expression*)parser_const_float_1(parser),
1097 out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF,
1102 parseerror(parser, "invalid types used in expression: cannot add or subtract type %s and %s",
1103 type_name[exprs[0]->expression.vtype],
1104 type_name[exprs[1]->expression.vtype]);
1108 case opid2('&','='):
1109 case opid2('|','='):
1110 if (NotSameType(TYPE_FLOAT)) {
1111 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1112 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1113 parseerror(parser, "invalid types used in expression: %s and %s",
1117 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1118 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1120 if (ast_istype(exprs[0], ast_entfield))
1121 assignop = type_storep_instr[exprs[0]->expression.vtype];
1123 assignop = type_store_instr[exprs[0]->expression.vtype];
1124 out = (ast_expression*)ast_binstore_new(ctx, assignop,
1125 (op->id == opid2('&','=') ? INSTR_BITAND : INSTR_BITOR),
1126 exprs[0], exprs[1]);
1128 case opid3('&','~','='):
1129 /* This is like: a &= ~(b);
1130 * But QC has no bitwise-not, so we implement it as
1133 if (NotSameType(TYPE_FLOAT)) {
1134 ast_type_to_string(exprs[0], ty1, sizeof(ty1));
1135 ast_type_to_string(exprs[1], ty2, sizeof(ty2));
1136 parseerror(parser, "invalid types used in expression: %s and %s",
1140 if (ast_istype(exprs[0], ast_entfield))
1141 assignop = type_storep_instr[exprs[0]->expression.vtype];
1143 assignop = type_store_instr[exprs[0]->expression.vtype];
1144 out = (ast_expression*)ast_binary_new(ctx, INSTR_BITAND, exprs[0], exprs[1]);
1147 if (ast_istype(exprs[0], ast_value) && asvalue[0]->cvq == CV_CONST) {
1148 parseerror(parser, "assignment to constant `%s`", asvalue[0]->name);
1150 asbinstore = ast_binstore_new(ctx, assignop, INSTR_SUB_F, exprs[0], out);
1151 asbinstore->keep_dest = true;
1152 out = (ast_expression*)asbinstore;
1158 parseerror(parser, "failed to apply operand %s", op->op);
1162 DEBUGSHUNTDO(con_out("applied %s\n", op->op));
1163 vec_push(sy->out, syexp(ctx, out));
1167 static bool parser_close_call(parser_t *parser, shunt *sy)
1169 /* was a function call */
1170 ast_expression *fun;
1176 vec_shrinkby(sy->ops, 1);
1177 fid = sy->ops[vec_size(sy->ops)].off;
1179 /* out[fid] is the function
1180 * everything above is parameters...
1181 * 0 params = nothing
1182 * 1 params = ast_expression
1186 if (vec_size(sy->out) < 1 || vec_size(sy->out) <= fid) {
1187 parseerror(parser, "internal error: function call needs function and parameter list...");
1191 fun = sy->out[fid].out;
1193 call = ast_call_new(sy->ops[vec_size(sy->ops)].ctx, fun);
1195 parseerror(parser, "out of memory");
1199 if (fid+1 == vec_size(sy->out)) {
1202 } else if (fid+2 == vec_size(sy->out)) {
1204 vec_shrinkby(sy->out, 1);
1205 params = sy->out[vec_size(sy->out)].block;
1209 vec_push(call->params, sy->out[vec_size(sy->out)].out);
1211 paramcount = vec_size(params->exprs);
1212 call->params = params->exprs;
1213 params->exprs = NULL;
1216 if (!ast_call_check_types(call))
1219 parseerror(parser, "invalid function call");
1223 /* overwrite fid, the function, with a call */
1224 sy->out[fid] = syexp(call->expression.node.context, (ast_expression*)call);
1226 if (fun->expression.vtype != TYPE_FUNCTION) {
1227 parseerror(parser, "not a function (%s)", type_name[fun->expression.vtype]);
1231 if (!fun->expression.next) {
1232 parseerror(parser, "could not determine function return type");
1235 if (vec_size(fun->expression.params) != paramcount &&
1236 !(fun->expression.variadic &&
1237 vec_size(fun->expression.params) < paramcount))
1240 const char *fewmany = (vec_size(fun->expression.params) > paramcount) ? "few" : "many";
1242 fval = (ast_istype(fun, ast_value) ? ((ast_value*)fun) : NULL);
1243 if (opts.standard == COMPILER_GMQCC)
1246 parseerror(parser, "too %s parameters for call to %s: expected %i, got %i\n"
1247 " -> `%s` has been declared here: %s:%i",
1248 fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount,
1249 fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
1251 parseerror(parser, "too %s parameters for function call: expected %i, got %i\n"
1252 " -> `%s` has been declared here: %s:%i",
1253 fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount,
1254 fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
1260 return !parsewarning(parser, WARN_TOO_FEW_PARAMETERS,
1261 "too %s parameters for call to %s: expected %i, got %i\n"
1262 " -> `%s` has been declared here: %s:%i",
1263 fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount,
1264 fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
1266 return !parsewarning(parser, WARN_TOO_FEW_PARAMETERS,
1267 "too %s parameters for function call: expected %i, got %i\n"
1268 " -> `%s` has been declared here: %s:%i",
1269 fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount,
1270 fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
1278 static bool parser_close_paren(parser_t *parser, shunt *sy, bool functions_only)
1280 if (!vec_size(sy->ops)) {
1281 parseerror(parser, "unmatched closing paren");
1284 /* this would for bit a + (x) because there are no operators inside (x)
1285 if (sy->ops[vec_size(sy->ops)-1].paren == 1) {
1286 parseerror(parser, "empty parenthesis expression");
1290 while (vec_size(sy->ops)) {
1291 if (sy->ops[vec_size(sy->ops)-1].paren == SY_PAREN_FUNC) {
1292 if (!parser_close_call(parser, sy))
1296 if (sy->ops[vec_size(sy->ops)-1].paren == SY_PAREN_EXPR) {
1297 vec_shrinkby(sy->ops, 1);
1298 return !functions_only;
1300 if (sy->ops[vec_size(sy->ops)-1].paren == SY_PAREN_INDEX) {
1303 /* pop off the parenthesis */
1304 vec_shrinkby(sy->ops, 1);
1305 /* then apply the index operator */
1306 if (!parser_sy_apply_operator(parser, sy))
1310 if (sy->ops[vec_size(sy->ops)-1].paren == SY_PAREN_TERNARY) {
1313 if (vec_last(parser->pot) != POT_TERNARY1) {
1314 parseerror(parser, "mismatched colon in ternary expression (missing closing paren?)");
1317 vec_last(parser->pot) = POT_TERNARY2;
1318 /* pop off the parenthesis */
1319 vec_shrinkby(sy->ops, 1);
1322 if (!parser_sy_apply_operator(parser, sy))
1328 static void parser_reclassify_token(parser_t *parser)
1331 for (i = 0; i < operator_count; ++i) {
1332 if (!strcmp(parser_tokval(parser), operators[i].op)) {
1333 parser->tok = TOKEN_OPERATOR;
1339 static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma)
1341 ast_expression *expr = NULL;
1343 bool wantop = false;
1344 bool gotmemberof = false;
1346 /* count the parens because an if starts with one, so the
1347 * end of a condition is an unmatched closing paren
1355 parser->lex->flags.noops = false;
1357 parser_reclassify_token(parser);
1362 gotmemberof = false;
1364 parser->memberof = 0;
1366 if (OPTS_FLAG(TRANSLATABLE_STRINGS) &&
1367 parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "_"))
1369 /* a translatable string */
1373 parseerror(parser, "expected operator or end of statement, got constant");
1377 parser->lex->flags.noops = true;
1378 if (!parser_next(parser) || parser->tok != '(') {
1379 parseerror(parser, "use _(\"string\") to create a translatable string constant");
1382 parser->lex->flags.noops = false;
1383 if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) {
1384 parseerror(parser, "expected a constant string in translatable-string extension");
1387 val = parser_const_string(parser, parser_tokval(parser), true);
1391 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1392 DEBUGSHUNTDO(con_out("push string\n"));
1394 if (!parser_next(parser) || parser->tok != ')') {
1395 parseerror(parser, "expected closing paren after translatable string");
1399 else if (parser->tok == TOKEN_IDENT)
1401 ast_expression *var;
1403 parseerror(parser, "expected operator or end of statement");
1408 if (opts.standard == COMPILER_GMQCC)
1410 if (parser->memberof == TYPE_ENTITY) {
1411 /* still get vars first since there could be a fieldpointer */
1412 var = parser_find_var(parser, parser_tokval(parser));
1414 var = parser_find_field(parser, parser_tokval(parser));
1416 else if (parser->memberof == TYPE_VECTOR)
1418 parseerror(parser, "TODO: implement effective vector member access");
1421 else if (parser->memberof) {
1422 parseerror(parser, "namespace for member not found");
1426 var = parser_find_var(parser, parser_tokval(parser));
1428 var = parser_find_var(parser, parser_tokval(parser));
1430 var = parser_find_field(parser, parser_tokval(parser));
1433 parseerror(parser, "unexpected ident: %s", parser_tokval(parser));
1436 if (ast_istype(var, ast_value)) {
1437 ((ast_value*)var)->uses++;
1439 else if (ast_istype(var, ast_member)) {
1440 ast_member *mem = (ast_member*)var;
1441 if (ast_istype(mem->owner, ast_value))
1442 ((ast_value*)(mem->owner))->uses++;
1444 vec_push(sy.out, syexp(parser_ctx(parser), var));
1445 DEBUGSHUNTDO(con_out("push %s\n", parser_tokval(parser)));
1447 else if (parser->tok == TOKEN_FLOATCONST) {
1450 parseerror(parser, "expected operator or end of statement, got constant");
1454 val = parser_const_float(parser, (parser_token(parser)->constval.f));
1457 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1458 DEBUGSHUNTDO(con_out("push %g\n", parser_token(parser)->constval.f));
1460 else if (parser->tok == TOKEN_INTCONST || parser->tok == TOKEN_CHARCONST) {
1463 parseerror(parser, "expected operator or end of statement, got constant");
1467 val = parser_const_float(parser, (double)(parser_token(parser)->constval.i));
1470 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1471 DEBUGSHUNTDO(con_out("push %i\n", parser_token(parser)->constval.i));
1473 else if (parser->tok == TOKEN_STRINGCONST) {
1476 parseerror(parser, "expected operator or end of statement, got constant");
1480 val = parser_const_string(parser, parser_tokval(parser), false);
1483 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1484 DEBUGSHUNTDO(con_out("push string\n"));
1486 else if (parser->tok == TOKEN_VECTORCONST) {
1489 parseerror(parser, "expected operator or end of statement, got constant");
1493 val = parser_const_vector(parser, parser_token(parser)->constval.v);
1496 vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val));
1497 DEBUGSHUNTDO(con_out("push '%g %g %g'\n",
1498 parser_token(parser)->constval.v.x,
1499 parser_token(parser)->constval.v.y,
1500 parser_token(parser)->constval.v.z));
1502 else if (parser->tok == '(') {
1503 parseerror(parser, "internal error: '(' should be classified as operator");
1506 else if (parser->tok == '[') {
1507 parseerror(parser, "internal error: '[' should be classified as operator");
1510 else if (parser->tok == ')') {
1512 DEBUGSHUNTDO(con_out("do[op] )\n"));
1516 /* we do expect an operator next */
1517 /* closing an opening paren */
1518 if (!parser_close_paren(parser, &sy, false))
1520 if (vec_last(parser->pot) != POT_PAREN) {
1521 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1524 vec_pop(parser->pot);
1526 DEBUGSHUNTDO(con_out("do[nop] )\n"));
1530 /* allowed for function calls */
1531 if (!parser_close_paren(parser, &sy, true))
1533 if (vec_last(parser->pot) != POT_PAREN) {
1534 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1537 vec_pop(parser->pot);
1541 else if (parser->tok == ']') {
1543 parseerror(parser, "operand expected");
1547 if (!parser_close_paren(parser, &sy, false))
1549 if (vec_last(parser->pot) != POT_PAREN) {
1550 parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)");
1553 vec_pop(parser->pot);
1556 else if (parser->tok == TOKEN_TYPENAME) {
1557 parseerror(parser, "unexpected typename");
1560 else if (parser->tok != TOKEN_OPERATOR) {
1562 parseerror(parser, "expected operator or end of statement");
1569 /* classify the operator */
1570 const oper_info *op;
1571 const oper_info *olast = NULL;
1573 for (o = 0; o < operator_count; ++o) {
1574 if ((!(operators[o].flags & OP_PREFIX) == wantop) &&
1575 /* !(operators[o].flags & OP_SUFFIX) && / * remove this */
1576 !strcmp(parser_tokval(parser), operators[o].op))
1581 if (o == operator_count) {
1582 /* no operator found... must be the end of the statement */
1585 /* found an operator */
1588 /* when declaring variables, a comma starts a new variable */
1589 if (op->id == opid1(',') && !parens && stopatcomma) {
1590 /* fixup the token */
1595 /* a colon without a pervious question mark cannot be a ternary */
1596 if (!ternaries && op->id == opid2(':','?')) {
1601 if (op->id == opid1(',')) {
1602 if (vec_size(parser->pot) && vec_last(parser->pot) == POT_TERNARY2) {
1603 (void)!parsewarning(parser, WARN_TERNARY_PRECEDENCE, "suggesting parenthesis around ternary expression");
1607 if (vec_size(sy.ops) && !vec_last(sy.ops).paren)
1608 olast = &operators[vec_last(sy.ops).etype-1];
1611 (op->prec < olast->prec) ||
1612 (op->assoc == ASSOC_LEFT && op->prec <= olast->prec) ) )
1614 if (!parser_sy_apply_operator(parser, &sy))
1616 if (vec_size(sy.ops) && !vec_last(sy.ops).paren)
1617 olast = &operators[vec_last(sy.ops).etype-1];
1622 if (op->id == opid1('.') && opts.standard == COMPILER_GMQCC) {
1623 /* for gmqcc standard: open up the namespace of the previous type */
1624 ast_expression *prevex = vec_last(sy.out).out;
1626 parseerror(parser, "unexpected member operator");
1629 if (prevex->expression.vtype == TYPE_ENTITY)
1630 parser->memberof = TYPE_ENTITY;
1631 else if (prevex->expression.vtype == TYPE_VECTOR)
1632 parser->memberof = TYPE_VECTOR;
1634 parseerror(parser, "type error: type has no members");
1640 if (op->id == opid1('(')) {
1642 size_t sycount = vec_size(sy.out);
1643 DEBUGSHUNTDO(con_out("push [op] (\n"));
1644 ++parens; vec_push(parser->pot, POT_PAREN);
1645 /* we expected an operator, this is the function-call operator */
1646 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_FUNC, sycount-1));
1648 ++parens; vec_push(parser->pot, POT_PAREN);
1649 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_EXPR, 0));
1650 DEBUGSHUNTDO(con_out("push [nop] (\n"));
1653 } else if (op->id == opid1('[')) {
1655 parseerror(parser, "unexpected array subscript");
1658 ++parens; vec_push(parser->pot, POT_PAREN);
1659 /* push both the operator and the paren, this makes life easier */
1660 vec_push(sy.ops, syop(parser_ctx(parser), op));
1661 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_INDEX, 0));
1663 } else if (op->id == opid2('?',':')) {
1665 vec_push(sy.ops, syop(parser_ctx(parser), op));
1666 vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_TERNARY, 0));
1669 vec_push(parser->pot, POT_TERNARY1);
1670 } else if (op->id == opid2(':','?')) {
1671 if (!vec_size(parser->pot)) {
1672 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
1675 if (vec_last(parser->pot) != POT_TERNARY1) {
1676 parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)");
1679 if (!parser_close_paren(parser, &sy, false))
1681 vec_push(sy.ops, syop(parser_ctx(parser), op));
1685 DEBUGSHUNTDO(con_out("push operator %s\n", op->op));
1686 vec_push(sy.ops, syop(parser_ctx(parser), op));
1687 wantop = !!(op->flags & OP_SUFFIX);
1690 if (!parser_next(parser)) {
1693 if (parser->tok == ';' ||
1694 (!parens && parser->tok == ']'))
1700 while (vec_size(sy.ops)) {
1701 if (!parser_sy_apply_operator(parser, &sy))
1705 parser->lex->flags.noops = true;
1706 if (!vec_size(sy.out)) {
1707 parseerror(parser, "empty expression");
1710 expr = sy.out[0].out;
1713 DEBUGSHUNTDO(con_out("shunt done\n"));
1714 if (vec_size(parser->pot)) {
1715 parseerror(parser, "internal error: vec_size(parser->pot) = %lu", (unsigned long)vec_size(parser->pot));
1718 vec_free(parser->pot);
1722 parser->lex->flags.noops = true;
1728 static ast_expression* parse_expression(parser_t *parser, bool stopatcomma)
1730 ast_expression *e = parse_expression_leave(parser, stopatcomma);
1733 if (!parser_next(parser)) {
1740 static void parser_enterblock(parser_t *parser)
1742 vec_push(parser->variables, util_htnew(PARSER_HT_SIZE));
1743 vec_push(parser->_blocklocals, vec_size(parser->_locals));
1744 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
1745 vec_push(parser->_blocktypedefs, vec_size(parser->_typedefs));
1746 vec_push(parser->_block_ctx, parser_ctx(parser));
1749 static bool parser_leaveblock(parser_t *parser)
1752 size_t locals, typedefs;
1754 if (vec_size(parser->variables) <= PARSER_HT_LOCALS) {
1755 parseerror(parser, "internal error: parser_leaveblock with no block");
1759 util_htdel(vec_last(parser->variables));
1760 vec_pop(parser->variables);
1761 if (!vec_size(parser->_blocklocals)) {
1762 parseerror(parser, "internal error: parser_leaveblock with no block (2)");
1766 locals = vec_last(parser->_blocklocals);
1767 vec_pop(parser->_blocklocals);
1768 while (vec_size(parser->_locals) != locals) {
1769 ast_expression *e = vec_last(parser->_locals);
1770 ast_value *v = (ast_value*)e;
1771 vec_pop(parser->_locals);
1772 if (ast_istype(e, ast_value) && !v->uses) {
1773 if (compile_warning(ast_ctx(v), WARN_UNUSED_VARIABLE, "unused variable: `%s`", v->name)) {
1780 typedefs = vec_last(parser->_blocktypedefs);
1781 while (vec_size(parser->_typedefs) != typedefs) {
1782 ast_delete(vec_last(parser->_typedefs));
1783 vec_pop(parser->_typedefs);
1785 util_htdel(vec_last(parser->typedefs));
1786 vec_pop(parser->typedefs);
1788 vec_pop(parser->_block_ctx);
1792 static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e)
1794 vec_push(parser->_locals, e);
1795 util_htset(vec_last(parser->variables), name, (void*)e);
1798 static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out)
1801 ast_expression *cond, *ontrue, *onfalse = NULL;
1804 lex_ctx ctx = parser_ctx(parser);
1806 (void)block; /* not touching */
1808 /* skip the 'if', parse an optional 'not' and check for an opening paren */
1809 if (!parser_next(parser)) {
1810 parseerror(parser, "expected condition or 'not'");
1813 if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "not")) {
1815 if (!parser_next(parser)) {
1816 parseerror(parser, "expected condition in parenthesis");
1820 if (parser->tok != '(') {
1821 parseerror(parser, "expected 'if' condition in parenthesis");
1824 /* parse into the expression */
1825 if (!parser_next(parser)) {
1826 parseerror(parser, "expected 'if' condition after opening paren");
1829 /* parse the condition */
1830 cond = parse_expression_leave(parser, false);
1834 if (parser->tok != ')') {
1835 parseerror(parser, "expected closing paren after 'if' condition");
1839 /* parse into the 'then' branch */
1840 if (!parser_next(parser)) {
1841 parseerror(parser, "expected statement for on-true branch of 'if'");
1845 if (!parse_statement_or_block(parser, &ontrue)) {
1849 /* check for an else */
1850 if (!strcmp(parser_tokval(parser), "else")) {
1851 /* parse into the 'else' branch */
1852 if (!parser_next(parser)) {
1853 parseerror(parser, "expected on-false branch after 'else'");
1858 if (!parse_statement_or_block(parser, &onfalse)) {
1866 ifthen = ast_ifthen_new(ctx, cond, onfalse, ontrue);
1868 ifthen = ast_ifthen_new(ctx, cond, ontrue, onfalse);
1869 *out = (ast_expression*)ifthen;
1873 static bool parse_while(parser_t *parser, ast_block *block, ast_expression **out)
1876 ast_expression *cond, *ontrue;
1878 lex_ctx ctx = parser_ctx(parser);
1880 (void)block; /* not touching */
1882 /* skip the 'while' and check for opening paren */
1883 if (!parser_next(parser) || parser->tok != '(') {
1884 parseerror(parser, "expected 'while' condition in parenthesis");
1887 /* parse into the expression */
1888 if (!parser_next(parser)) {
1889 parseerror(parser, "expected 'while' condition after opening paren");
1892 /* parse the condition */
1893 cond = parse_expression_leave(parser, false);
1897 if (parser->tok != ')') {
1898 parseerror(parser, "expected closing paren after 'while' condition");
1902 /* parse into the 'then' branch */
1903 if (!parser_next(parser)) {
1904 parseerror(parser, "expected while-loop body");
1908 if (!parse_statement_or_block(parser, &ontrue)) {
1913 aloop = ast_loop_new(ctx, NULL, cond, NULL, NULL, ontrue);
1914 *out = (ast_expression*)aloop;
1918 static bool parse_dowhile(parser_t *parser, ast_block *block, ast_expression **out)
1921 ast_expression *cond, *ontrue;
1923 lex_ctx ctx = parser_ctx(parser);
1925 (void)block; /* not touching */
1927 /* skip the 'do' and get the body */
1928 if (!parser_next(parser)) {
1929 parseerror(parser, "expected loop body");
1932 if (!parse_statement_or_block(parser, &ontrue))
1935 /* expect the "while" */
1936 if (parser->tok != TOKEN_KEYWORD ||
1937 strcmp(parser_tokval(parser), "while"))
1939 parseerror(parser, "expected 'while' and condition");
1944 /* skip the 'while' and check for opening paren */
1945 if (!parser_next(parser) || parser->tok != '(') {
1946 parseerror(parser, "expected 'while' condition in parenthesis");
1950 /* parse into the expression */
1951 if (!parser_next(parser)) {
1952 parseerror(parser, "expected 'while' condition after opening paren");
1956 /* parse the condition */
1957 cond = parse_expression_leave(parser, false);
1961 if (parser->tok != ')') {
1962 parseerror(parser, "expected closing paren after 'while' condition");
1968 if (!parser_next(parser) || parser->tok != ';') {
1969 parseerror(parser, "expected semicolon after condition");
1975 if (!parser_next(parser)) {
1976 parseerror(parser, "parse error");
1982 aloop = ast_loop_new(ctx, NULL, NULL, cond, NULL, ontrue);
1983 *out = (ast_expression*)aloop;
1987 static bool parse_for(parser_t *parser, ast_block *block, ast_expression **out)
1990 ast_expression *initexpr, *cond, *increment, *ontrue;
1994 lex_ctx ctx = parser_ctx(parser);
1996 parser_enterblock(parser);
2003 /* skip the 'while' and check for opening paren */
2004 if (!parser_next(parser) || parser->tok != '(') {
2005 parseerror(parser, "expected 'for' expressions in parenthesis");
2008 /* parse into the expression */
2009 if (!parser_next(parser)) {
2010 parseerror(parser, "expected 'for' initializer after opening paren");
2015 if (parser->tok == TOKEN_IDENT)
2016 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
2018 if (typevar || parser->tok == TOKEN_TYPENAME) {
2019 if (opts.standard != COMPILER_GMQCC) {
2020 if (parsewarning(parser, WARN_EXTENSIONS,
2021 "current standard does not allow variable declarations in for-loop initializers"))
2024 if (!parse_variable(parser, block, true, CV_VAR, typevar, false))
2027 else if (parser->tok != ';')
2029 initexpr = parse_expression_leave(parser, false);
2034 /* move on to condition */
2035 if (parser->tok != ';') {
2036 parseerror(parser, "expected semicolon after for-loop initializer");
2039 if (!parser_next(parser)) {
2040 parseerror(parser, "expected for-loop condition");
2044 /* parse the condition */
2045 if (parser->tok != ';') {
2046 cond = parse_expression_leave(parser, false);
2051 /* move on to incrementor */
2052 if (parser->tok != ';') {
2053 parseerror(parser, "expected semicolon after for-loop initializer");
2056 if (!parser_next(parser)) {
2057 parseerror(parser, "expected for-loop condition");
2061 /* parse the incrementor */
2062 if (parser->tok != ')') {
2063 increment = parse_expression_leave(parser, false);
2066 if (!ast_side_effects(increment)) {
2067 if (genwarning(ast_ctx(increment), WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
2073 if (parser->tok != ')') {
2074 parseerror(parser, "expected closing paren after 'for-loop' incrementor");
2077 /* parse into the 'then' branch */
2078 if (!parser_next(parser)) {
2079 parseerror(parser, "expected for-loop body");
2082 if (!parse_statement_or_block(parser, &ontrue))
2085 aloop = ast_loop_new(ctx, initexpr, cond, NULL, increment, ontrue);
2086 *out = (ast_expression*)aloop;
2088 if (!parser_leaveblock(parser))
2092 if (initexpr) ast_delete(initexpr);
2093 if (cond) ast_delete(cond);
2094 if (increment) ast_delete(increment);
2095 (void)!parser_leaveblock(parser);
2099 static bool parse_return(parser_t *parser, ast_block *block, ast_expression **out)
2101 ast_expression *exp = NULL;
2102 ast_return *ret = NULL;
2103 ast_value *expected = parser->function->vtype;
2105 lex_ctx ctx = parser_ctx(parser);
2107 (void)block; /* not touching */
2109 if (!parser_next(parser)) {
2110 parseerror(parser, "expected return expression");
2114 if (parser->tok != ';') {
2115 exp = parse_expression(parser, false);
2119 if (exp->expression.vtype != expected->expression.next->expression.vtype) {
2120 parseerror(parser, "return with invalid expression");
2123 ret = ast_return_new(exp->expression.node.context, exp);
2129 if (!parser_next(parser))
2130 parseerror(parser, "parse error");
2131 if (expected->expression.next->expression.vtype != TYPE_VOID) {
2132 if (opts.standard != COMPILER_GMQCC)
2133 (void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value");
2135 parseerror(parser, "return without value");
2137 ret = ast_return_new(ctx, NULL);
2139 *out = (ast_expression*)ret;
2143 static bool parse_break_continue(parser_t *parser, ast_block *block, ast_expression **out, bool is_continue)
2145 lex_ctx ctx = parser_ctx(parser);
2147 (void)block; /* not touching */
2149 if (!parser_next(parser) || parser->tok != ';') {
2150 parseerror(parser, "expected semicolon");
2154 if (!parser_next(parser))
2155 parseerror(parser, "parse error");
2157 *out = (ast_expression*)ast_breakcont_new(ctx, is_continue);
2161 /* returns true when it was a variable qualifier, false otherwise!
2162 * on error, cvq is set to CV_WRONG
2164 static bool parse_var_qualifiers(parser_t *parser, bool with_local, int *cvq, bool *noref)
2166 bool had_const = false;
2167 bool had_var = false;
2168 bool had_noref = false;
2171 if (!strcmp(parser_tokval(parser), "const"))
2173 else if (!strcmp(parser_tokval(parser), "var"))
2175 else if (with_local && !strcmp(parser_tokval(parser), "local"))
2177 else if (!strcmp(parser_tokval(parser), "noref"))
2179 else if (!had_const && !had_var && !had_noref) {
2184 if (!parser_next(parser))
2196 parseerror(parser, "parse error after variable qualifier");
2201 static bool parse_switch(parser_t *parser, ast_block *block, ast_expression **out)
2203 ast_expression *operand;
2206 ast_switch *switchnode;
2207 ast_switch_case swcase;
2212 lex_ctx ctx = parser_ctx(parser);
2214 (void)block; /* not touching */
2217 /* parse over the opening paren */
2218 if (!parser_next(parser) || parser->tok != '(') {
2219 parseerror(parser, "expected switch operand in parenthesis");
2223 /* parse into the expression */
2224 if (!parser_next(parser)) {
2225 parseerror(parser, "expected switch operand");
2228 /* parse the operand */
2229 operand = parse_expression_leave(parser, false);
2233 switchnode = ast_switch_new(ctx, operand);
2236 if (parser->tok != ')') {
2237 ast_delete(switchnode);
2238 parseerror(parser, "expected closing paren after 'switch' operand");
2242 /* parse over the opening paren */
2243 if (!parser_next(parser) || parser->tok != '{') {
2244 ast_delete(switchnode);
2245 parseerror(parser, "expected list of cases");
2249 if (!parser_next(parser)) {
2250 ast_delete(switchnode);
2251 parseerror(parser, "expected 'case' or 'default'");
2255 /* new block; allow some variables to be declared here */
2256 parser_enterblock(parser);
2259 if (parser->tok == TOKEN_IDENT)
2260 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
2261 if (typevar || parser->tok == TOKEN_TYPENAME) {
2262 if (!parse_variable(parser, block, false, CV_NONE, typevar, false)) {
2263 ast_delete(switchnode);
2268 if (parse_var_qualifiers(parser, true, &cvq, &noref))
2270 if (cvq == CV_WRONG) {
2271 ast_delete(switchnode);
2274 if (!parse_variable(parser, block, false, cvq, NULL, noref)) {
2275 ast_delete(switchnode);
2284 while (parser->tok != '}') {
2285 ast_block *caseblock;
2287 if (parser->tok != TOKEN_KEYWORD) {
2288 ast_delete(switchnode);
2289 parseerror(parser, "expected 'case' or 'default'");
2292 if (!strcmp(parser_tokval(parser), "case")) {
2293 if (!parser_next(parser)) {
2294 ast_delete(switchnode);
2295 parseerror(parser, "expected expression for case");
2298 swcase.value = parse_expression_leave(parser, false);
2299 if (!swcase.value) {
2300 ast_delete(switchnode);
2301 parseerror(parser, "expected expression for case");
2304 if (!OPTS_FLAG(RELAXED_SWITCH)) {
2305 opval = (ast_value*)swcase.value;
2306 if (!ast_istype(swcase.value, ast_value)) { /* || opval->cvq != CV_CONST) { */
2307 parseerror(parser, "case on non-constant values need to be explicitly enabled via -frelaxed-switch");
2313 else if (!strcmp(parser_tokval(parser), "default")) {
2314 swcase.value = NULL;
2315 if (!parser_next(parser)) {
2316 ast_delete(switchnode);
2317 parseerror(parser, "expected colon");
2322 /* Now the colon and body */
2323 if (parser->tok != ':') {
2324 if (swcase.value) ast_unref(swcase.value);
2325 ast_delete(switchnode);
2326 parseerror(parser, "expected colon");
2330 if (!parser_next(parser)) {
2331 if (swcase.value) ast_unref(swcase.value);
2332 ast_delete(switchnode);
2333 parseerror(parser, "expected statements or case");
2336 caseblock = ast_block_new(parser_ctx(parser));
2338 if (swcase.value) ast_unref(swcase.value);
2339 ast_delete(switchnode);
2342 swcase.code = (ast_expression*)caseblock;
2343 vec_push(switchnode->cases, swcase);
2345 ast_expression *expr;
2346 if (parser->tok == '}')
2348 if (parser->tok == TOKEN_KEYWORD) {
2349 if (!strcmp(parser_tokval(parser), "case") ||
2350 !strcmp(parser_tokval(parser), "default"))
2355 if (!parse_statement(parser, caseblock, &expr, true)) {
2356 ast_delete(switchnode);
2361 if (!ast_block_add_expr(caseblock, expr)) {
2362 ast_delete(switchnode);
2368 parser_leaveblock(parser);
2371 if (parser->tok != '}') {
2372 ast_delete(switchnode);
2373 parseerror(parser, "expected closing paren of case list");
2376 if (!parser_next(parser)) {
2377 ast_delete(switchnode);
2378 parseerror(parser, "parse error after switch");
2381 *out = (ast_expression*)switchnode;
2385 static bool parse_goto(parser_t *parser, ast_expression **out)
2390 if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
2391 parseerror(parser, "expected label name after `goto`");
2395 gt = ast_goto_new(parser_ctx(parser), parser_tokval(parser));
2397 for (i = 0; i < vec_size(parser->labels); ++i) {
2398 if (!strcmp(parser->labels[i]->name, parser_tokval(parser))) {
2399 ast_goto_set_label(gt, parser->labels[i]);
2403 if (i == vec_size(parser->labels))
2404 vec_push(parser->gotos, gt);
2406 if (!parser_next(parser) || parser->tok != ';') {
2407 parseerror(parser, "semicolon expected after goto label");
2410 if (!parser_next(parser)) {
2411 parseerror(parser, "parse error after goto");
2415 *out = (ast_expression*)gt;
2419 static bool parse_skipwhite(parser_t *parser)
2422 if (!parser_next(parser))
2424 } while (parser->tok == TOKEN_WHITE && parser->tok < TOKEN_ERROR);
2425 return parser->tok < TOKEN_ERROR;
2428 static bool parse_eol(parser_t *parser)
2430 if (!parse_skipwhite(parser))
2432 return parser->tok == TOKEN_EOL;
2435 static bool parse_pragma_do(parser_t *parser)
2437 if (!parser_next(parser) ||
2438 parser->tok != TOKEN_IDENT ||
2439 strcmp(parser_tokval(parser), "pragma"))
2441 parseerror(parser, "expected `pragma` keyword after `#`, got `%s`", parser_tokval(parser));
2444 if (!parse_skipwhite(parser) || parser->tok != TOKEN_IDENT) {
2445 parseerror(parser, "expected pragma, got `%s`", parser_tokval(parser));
2449 if (!strcmp(parser_tokval(parser), "noref")) {
2450 if (!parse_skipwhite(parser) || parser->tok != TOKEN_INTCONST) {
2451 parseerror(parser, "`noref` pragma requires an argument: 0 or 1");
2454 parser->noref = !!parser_token(parser)->constval.i;
2455 if (!parse_eol(parser)) {
2456 parseerror(parser, "parse error after `noref` pragma");
2462 (void)!parsewarning(parser, WARN_UNKNOWN_PRAGMAS, "ignoring #pragma %s", parser_tokval(parser));
2469 static bool parse_pragma(parser_t *parser)
2472 parser->lex->flags.preprocessing = true;
2473 parser->lex->flags.mergelines = true;
2474 rv = parse_pragma_do(parser);
2475 if (parser->tok != TOKEN_EOL) {
2476 parseerror(parser, "junk after pragma");
2479 parser->lex->flags.preprocessing = false;
2480 parser->lex->flags.mergelines = false;
2481 if (!parser_next(parser)) {
2482 parseerror(parser, "parse error after pragma");
2488 static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases)
2492 ast_value *typevar = NULL;
2496 if (parser->tok == TOKEN_IDENT)
2497 typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
2499 if (typevar || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
2501 /* local variable */
2503 parseerror(parser, "cannot declare a variable from here");
2506 if (opts.standard == COMPILER_QCC) {
2507 if (parsewarning(parser, WARN_EXTENSIONS, "missing 'local' keyword when declaring a local variable"))
2510 if (!parse_variable(parser, block, false, CV_NONE, typevar, false))
2514 else if (parse_var_qualifiers(parser, !!block, &cvq, &noref))
2516 if (cvq == CV_WRONG)
2518 return parse_variable(parser, block, true, cvq, NULL, noref);
2520 else if (parser->tok == TOKEN_KEYWORD)
2522 if (!strcmp(parser_tokval(parser), "__builtin_debug_printtype"))
2527 if (!parser_next(parser)) {
2528 parseerror(parser, "parse error after __builtin_debug_printtype");
2532 if (parser->tok == TOKEN_IDENT && (tdef = parser_find_typedef(parser, parser_tokval(parser), 0)))
2534 ast_type_to_string((ast_expression*)tdef, ty, sizeof(ty));
2535 con_out("__builtin_debug_printtype: `%s`=`%s`\n", tdef->name, ty);
2536 if (!parser_next(parser)) {
2537 parseerror(parser, "parse error after __builtin_debug_printtype typename argument");
2543 if (!parse_statement(parser, block, out, allow_cases))
2546 con_out("__builtin_debug_printtype: got no output node\n");
2549 ast_type_to_string(*out, ty, sizeof(ty));
2550 con_out("__builtin_debug_printtype: `%s`\n", ty);
2555 else if (!strcmp(parser_tokval(parser), "return"))
2557 return parse_return(parser, block, out);
2559 else if (!strcmp(parser_tokval(parser), "if"))
2561 return parse_if(parser, block, out);
2563 else if (!strcmp(parser_tokval(parser), "while"))
2565 return parse_while(parser, block, out);
2567 else if (!strcmp(parser_tokval(parser), "do"))
2569 return parse_dowhile(parser, block, out);
2571 else if (!strcmp(parser_tokval(parser), "for"))
2573 if (opts.standard == COMPILER_QCC) {
2574 if (parsewarning(parser, WARN_EXTENSIONS, "for loops are not recognized in the original Quake C standard, to enable try an alternate standard --std=?"))
2577 return parse_for(parser, block, out);
2579 else if (!strcmp(parser_tokval(parser), "break"))
2581 return parse_break_continue(parser, block, out, false);
2583 else if (!strcmp(parser_tokval(parser), "continue"))
2585 return parse_break_continue(parser, block, out, true);
2587 else if (!strcmp(parser_tokval(parser), "switch"))
2589 return parse_switch(parser, block, out);
2591 else if (!strcmp(parser_tokval(parser), "case") ||
2592 !strcmp(parser_tokval(parser), "default"))
2595 parseerror(parser, "unexpected 'case' label");
2600 else if (!strcmp(parser_tokval(parser), "goto"))
2602 return parse_goto(parser, out);
2604 else if (!strcmp(parser_tokval(parser), "typedef"))
2606 if (!parser_next(parser)) {
2607 parseerror(parser, "expected type definition after 'typedef'");
2610 return parse_typedef(parser);
2612 parseerror(parser, "Unexpected keyword");
2615 else if (parser->tok == '{')
2618 inner = parse_block(parser);
2621 *out = (ast_expression*)inner;
2624 else if (parser->tok == ':')
2628 if (!parser_next(parser)) {
2629 parseerror(parser, "expected label name");
2632 if (parser->tok != TOKEN_IDENT) {
2633 parseerror(parser, "label must be an identifier");
2636 label = ast_label_new(parser_ctx(parser), parser_tokval(parser));
2639 vec_push(parser->labels, label);
2640 *out = (ast_expression*)label;
2641 if (!parser_next(parser)) {
2642 parseerror(parser, "parse error after label");
2645 for (i = 0; i < vec_size(parser->gotos); ++i) {
2646 if (!strcmp(parser->gotos[i]->name, label->name)) {
2647 ast_goto_set_label(parser->gotos[i], label);
2648 vec_remove(parser->gotos, i, 1);
2654 else if (parser->tok == ';')
2656 if (!parser_next(parser)) {
2657 parseerror(parser, "parse error after empty statement");
2664 ast_expression *exp = parse_expression(parser, false);
2668 if (!ast_side_effects(exp)) {
2669 if (genwarning(ast_ctx(exp), WARN_EFFECTLESS_STATEMENT, "statement has no effect"))
2676 static bool parse_block_into(parser_t *parser, ast_block *block)
2680 parser_enterblock(parser);
2682 if (!parser_next(parser)) { /* skip the '{' */
2683 parseerror(parser, "expected function body");
2687 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
2689 ast_expression *expr = NULL;
2690 if (parser->tok == '}')
2693 if (!parse_statement(parser, block, &expr, false)) {
2694 /* parseerror(parser, "parse error"); */
2700 if (!ast_block_add_expr(block, expr)) {
2707 if (parser->tok != '}') {
2710 (void)parser_next(parser);
2714 if (!parser_leaveblock(parser))
2716 return retval && !!block;
2719 static ast_block* parse_block(parser_t *parser)
2722 block = ast_block_new(parser_ctx(parser));
2725 if (!parse_block_into(parser, block)) {
2726 ast_block_delete(block);
2732 static bool parse_statement_or_block(parser_t *parser, ast_expression **out)
2734 if (parser->tok == '{') {
2735 *out = (ast_expression*)parse_block(parser);
2738 return parse_statement(parser, NULL, out, false);
2741 static bool create_vector_members(ast_value *var, ast_member **me)
2744 size_t len = strlen(var->name);
2746 for (i = 0; i < 3; ++i) {
2747 char *name = mem_a(len+3);
2748 memcpy(name, var->name, len);
2750 name[len+1] = 'x'+i;
2752 me[i] = ast_member_new(ast_ctx(var), (ast_expression*)var, i, name);
2761 do { ast_member_delete(me[--i]); } while(i);
2765 static bool parse_function_body(parser_t *parser, ast_value *var)
2767 ast_block *block = NULL;
2772 ast_expression *framenum = NULL;
2773 ast_expression *nextthink = NULL;
2774 /* None of the following have to be deleted */
2775 ast_expression *fld_think = NULL, *fld_nextthink = NULL, *fld_frame = NULL;
2776 ast_expression *gbl_time = NULL, *gbl_self = NULL;
2777 bool has_frame_think;
2781 has_frame_think = false;
2782 old = parser->function;
2784 if (vec_size(parser->gotos) || vec_size(parser->labels)) {
2785 parseerror(parser, "gotos/labels leaking");
2789 if (var->expression.variadic) {
2790 if (parsewarning(parser, WARN_VARIADIC_FUNCTION,
2791 "variadic function with implementation will not be able to access additional parameters"))
2797 if (parser->tok == '[') {
2798 /* got a frame definition: [ framenum, nextthink ]
2799 * this translates to:
2800 * self.frame = framenum;
2801 * self.nextthink = time + 0.1;
2802 * self.think = nextthink;
2806 fld_think = parser_find_field(parser, "think");
2807 fld_nextthink = parser_find_field(parser, "nextthink");
2808 fld_frame = parser_find_field(parser, "frame");
2809 if (!fld_think || !fld_nextthink || !fld_frame) {
2810 parseerror(parser, "cannot use [frame,think] notation without the required fields");
2811 parseerror(parser, "please declare the following entityfields: `frame`, `think`, `nextthink`");
2814 gbl_time = parser_find_global(parser, "time");
2815 gbl_self = parser_find_global(parser, "self");
2816 if (!gbl_time || !gbl_self) {
2817 parseerror(parser, "cannot use [frame,think] notation without the required globals");
2818 parseerror(parser, "please declare the following globals: `time`, `self`");
2822 if (!parser_next(parser))
2825 framenum = parse_expression_leave(parser, true);
2827 parseerror(parser, "expected a framenumber constant in[frame,think] notation");
2830 if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->hasvalue) {
2831 ast_unref(framenum);
2832 parseerror(parser, "framenumber in [frame,think] notation must be a constant");
2836 if (parser->tok != ',') {
2837 ast_unref(framenum);
2838 parseerror(parser, "expected comma after frame number in [frame,think] notation");
2839 parseerror(parser, "Got a %i\n", parser->tok);
2843 if (!parser_next(parser)) {
2844 ast_unref(framenum);
2848 if (parser->tok == TOKEN_IDENT && !parser_find_var(parser, parser_tokval(parser)))
2850 /* qc allows the use of not-yet-declared functions here
2851 * - this automatically creates a prototype */
2852 ast_value *thinkfunc;
2853 ast_expression *functype = fld_think->expression.next;
2855 thinkfunc = ast_value_new(parser_ctx(parser), parser_tokval(parser), functype->expression.vtype);
2856 if (!thinkfunc || !ast_type_adopt(thinkfunc, functype)) {
2857 ast_unref(framenum);
2858 parseerror(parser, "failed to create implicit prototype for `%s`", parser_tokval(parser));
2862 if (!parser_next(parser)) {
2863 ast_unref(framenum);
2864 ast_delete(thinkfunc);
2868 vec_push(parser->globals, (ast_expression*)thinkfunc);
2869 util_htset(parser->htglobals, thinkfunc->name, thinkfunc);
2870 nextthink = (ast_expression*)thinkfunc;
2873 nextthink = parse_expression_leave(parser, true);
2875 ast_unref(framenum);
2876 parseerror(parser, "expected a think-function in [frame,think] notation");
2881 if (!ast_istype(nextthink, ast_value)) {
2882 parseerror(parser, "think-function in [frame,think] notation must be a constant");
2886 if (retval && parser->tok != ']') {
2887 parseerror(parser, "expected closing `]` for [frame,think] notation");
2891 if (retval && !parser_next(parser)) {
2895 if (retval && parser->tok != '{') {
2896 parseerror(parser, "a function body has to be declared after a [frame,think] declaration");
2901 ast_unref(nextthink);
2902 ast_unref(framenum);
2906 has_frame_think = true;
2909 block = ast_block_new(parser_ctx(parser));
2911 parseerror(parser, "failed to allocate block");
2912 if (has_frame_think) {
2913 ast_unref(nextthink);
2914 ast_unref(framenum);
2919 if (has_frame_think) {
2921 ast_expression *self_frame;
2922 ast_expression *self_nextthink;
2923 ast_expression *self_think;
2924 ast_expression *time_plus_1;
2925 ast_store *store_frame;
2926 ast_store *store_nextthink;
2927 ast_store *store_think;
2929 ctx = parser_ctx(parser);
2930 self_frame = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_frame);
2931 self_nextthink = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_nextthink);
2932 self_think = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_think);
2934 time_plus_1 = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F,
2935 gbl_time, (ast_expression*)parser_const_float(parser, 0.1));
2937 if (!self_frame || !self_nextthink || !self_think || !time_plus_1) {
2938 if (self_frame) ast_delete(self_frame);
2939 if (self_nextthink) ast_delete(self_nextthink);
2940 if (self_think) ast_delete(self_think);
2941 if (time_plus_1) ast_delete(time_plus_1);
2947 store_frame = ast_store_new(ctx, INSTR_STOREP_F, self_frame, framenum);
2948 store_nextthink = ast_store_new(ctx, INSTR_STOREP_F, self_nextthink, time_plus_1);
2949 store_think = ast_store_new(ctx, INSTR_STOREP_FNC, self_think, nextthink);
2952 ast_delete(self_frame);
2955 if (!store_nextthink) {
2956 ast_delete(self_nextthink);
2960 ast_delete(self_think);
2964 if (store_frame) ast_delete(store_frame);
2965 if (store_nextthink) ast_delete(store_nextthink);
2966 if (store_think) ast_delete(store_think);
2969 if (!ast_block_add_expr(block, (ast_expression*)store_frame) ||
2970 !ast_block_add_expr(block, (ast_expression*)store_nextthink) ||
2971 !ast_block_add_expr(block, (ast_expression*)store_think))
2978 parseerror(parser, "failed to generate code for [frame,think]");
2979 ast_unref(nextthink);
2980 ast_unref(framenum);
2986 parser_enterblock(parser);
2988 for (parami = 0; parami < vec_size(var->expression.params); ++parami) {
2990 ast_value *param = var->expression.params[parami];
2993 if (param->expression.vtype != TYPE_VECTOR &&
2994 (param->expression.vtype != TYPE_FIELD ||
2995 param->expression.next->expression.vtype != TYPE_VECTOR))
3000 if (!create_vector_members(param, me)) {
3001 ast_block_delete(block);
3005 for (e = 0; e < 3; ++e) {
3006 parser_addlocal(parser, me[e]->name, (ast_expression*)me[e]);
3007 ast_block_collect(block, (ast_expression*)me[e]);
3011 func = ast_function_new(ast_ctx(var), var->name, var);
3013 parseerror(parser, "failed to allocate function for `%s`", var->name);
3014 ast_block_delete(block);
3017 vec_push(parser->functions, func);
3019 parser->function = func;
3020 if (!parse_block_into(parser, block)) {
3021 ast_block_delete(block);
3025 vec_push(func->blocks, block);
3027 parser->function = old;
3028 if (!parser_leaveblock(parser))
3030 if (vec_size(parser->variables) != PARSER_HT_LOCALS) {
3031 parseerror(parser, "internal error: local scopes left");
3035 if (parser->tok == ';')
3036 return parser_next(parser);
3037 else if (opts.standard == COMPILER_QCC)
3038 parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)");
3042 vec_pop(parser->functions);
3043 ast_function_delete(func);
3044 var->constval.vfunc = NULL;
3047 (void)!parser_leaveblock(parser);
3048 parser->function = old;
3052 static ast_expression *array_accessor_split(
3057 ast_expression *left,
3058 ast_expression *right
3064 lex_ctx ctx = ast_ctx(array);
3066 if (!left || !right) {
3067 if (left) ast_delete(left);
3068 if (right) ast_delete(right);
3072 cmp = ast_binary_new(ctx, INSTR_LT,
3073 (ast_expression*)index,
3074 (ast_expression*)parser_const_float(parser, middle));
3078 parseerror(parser, "internal error: failed to create comparison for array setter");
3082 ifthen = ast_ifthen_new(ctx, (ast_expression*)cmp, left, right);
3084 ast_delete(cmp); /* will delete left and right */
3085 parseerror(parser, "internal error: failed to create conditional jump for array setter");
3089 return (ast_expression*)ifthen;
3092 static ast_expression *array_setter_node(parser_t *parser, ast_value *array, ast_value *index, ast_value *value, size_t from, size_t afterend)
3094 lex_ctx ctx = ast_ctx(array);
3096 if (from+1 == afterend) {
3097 /* set this value */
3100 ast_array_index *subscript;
3102 int assignop = type_store_instr[value->expression.vtype];
3104 if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR)
3105 assignop = INSTR_STORE_V;
3107 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
3111 st = ast_store_new(ctx, assignop, (ast_expression*)subscript, (ast_expression*)value);
3113 ast_delete(subscript);
3117 block = ast_block_new(ctx);
3123 if (!ast_block_add_expr(block, (ast_expression*)st)) {
3128 ret = ast_return_new(ctx, NULL);
3134 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
3139 return (ast_expression*)block;
3141 ast_expression *left, *right;
3142 size_t diff = afterend - from;
3143 size_t middle = from + diff/2;
3144 left = array_setter_node(parser, array, index, value, from, middle);
3145 right = array_setter_node(parser, array, index, value, middle, afterend);
3146 return array_accessor_split(parser, array, index, middle, left, right);
3150 static ast_expression *array_field_setter_node(
3159 lex_ctx ctx = ast_ctx(array);
3161 if (from+1 == afterend) {
3162 /* set this value */
3165 ast_entfield *entfield;
3166 ast_array_index *subscript;
3168 int assignop = type_storep_instr[value->expression.vtype];
3170 if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR)
3171 assignop = INSTR_STOREP_V;
3173 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
3177 entfield = ast_entfield_new_force(ctx,
3178 (ast_expression*)entity,
3179 (ast_expression*)subscript,
3180 (ast_expression*)subscript);
3182 ast_delete(subscript);
3186 st = ast_store_new(ctx, assignop, (ast_expression*)entfield, (ast_expression*)value);
3188 ast_delete(entfield);
3192 block = ast_block_new(ctx);
3198 if (!ast_block_add_expr(block, (ast_expression*)st)) {
3203 ret = ast_return_new(ctx, NULL);
3209 if (!ast_block_add_expr(block, (ast_expression*)ret)) {
3214 return (ast_expression*)block;
3216 ast_expression *left, *right;
3217 size_t diff = afterend - from;
3218 size_t middle = from + diff/2;
3219 left = array_field_setter_node(parser, array, entity, index, value, from, middle);
3220 right = array_field_setter_node(parser, array, entity, index, value, middle, afterend);
3221 return array_accessor_split(parser, array, index, middle, left, right);
3225 static ast_expression *array_getter_node(parser_t *parser, ast_value *array, ast_value *index, size_t from, size_t afterend)
3227 lex_ctx ctx = ast_ctx(array);
3229 if (from+1 == afterend) {
3231 ast_array_index *subscript;
3233 subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from));
3237 ret = ast_return_new(ctx, (ast_expression*)subscript);
3239 ast_delete(subscript);
3243 return (ast_expression*)ret;
3245 ast_expression *left, *right;
3246 size_t diff = afterend - from;
3247 size_t middle = from + diff/2;
3248 left = array_getter_node(parser, array, index, from, middle);
3249 right = array_getter_node(parser, array, index, middle, afterend);
3250 return array_accessor_split(parser, array, index, middle, left, right);
3254 static bool parser_create_array_accessor(parser_t *parser, ast_value *array, const char *funcname, ast_value **out)
3256 ast_function *func = NULL;
3257 ast_value *fval = NULL;
3258 ast_block *body = NULL;
3260 fval = ast_value_new(ast_ctx(array), funcname, TYPE_FUNCTION);
3262 parseerror(parser, "failed to create accessor function value");
3266 func = ast_function_new(ast_ctx(array), funcname, fval);
3269 parseerror(parser, "failed to create accessor function node");
3273 body = ast_block_new(ast_ctx(array));
3275 parseerror(parser, "failed to create block for array accessor");
3281 vec_push(func->blocks, body);
3284 vec_push(parser->accessors, fval);
3289 static bool parser_create_array_setter(parser_t *parser, ast_value *array, const char *funcname)
3291 ast_expression *root = NULL;
3292 ast_value *index = NULL;
3293 ast_value *value = NULL;
3297 if (!ast_istype(array->expression.next, ast_value)) {
3298 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
3302 if (!parser_create_array_accessor(parser, array, funcname, &fval))
3304 func = fval->constval.vfunc;
3305 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
3307 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
3308 value = ast_value_copy((ast_value*)array->expression.next);
3310 if (!index || !value) {
3311 parseerror(parser, "failed to create locals for array accessor");
3314 (void)!ast_value_set_name(value, "value"); /* not important */
3315 vec_push(fval->expression.params, index);
3316 vec_push(fval->expression.params, value);
3318 root = array_setter_node(parser, array, index, value, 0, array->expression.count);
3320 parseerror(parser, "failed to build accessor search tree");
3324 array->setter = fval;
3325 return ast_block_add_expr(func->blocks[0], root);
3327 if (index) ast_delete(index);
3328 if (value) ast_delete(value);
3329 if (root) ast_delete(root);
3335 static bool parser_create_array_field_setter(parser_t *parser, ast_value *array, const char *funcname)
3337 ast_expression *root = NULL;
3338 ast_value *entity = NULL;
3339 ast_value *index = NULL;
3340 ast_value *value = NULL;
3344 if (!ast_istype(array->expression.next, ast_value)) {
3345 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
3349 if (!parser_create_array_accessor(parser, array, funcname, &fval))
3351 func = fval->constval.vfunc;
3352 fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
3354 entity = ast_value_new(ast_ctx(array), "entity", TYPE_ENTITY);
3355 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
3356 value = ast_value_copy((ast_value*)array->expression.next);
3357 if (!entity || !index || !value) {
3358 parseerror(parser, "failed to create locals for array accessor");
3361 (void)!ast_value_set_name(value, "value"); /* not important */
3362 vec_push(fval->expression.params, entity);
3363 vec_push(fval->expression.params, index);
3364 vec_push(fval->expression.params, value);
3366 root = array_field_setter_node(parser, array, entity, index, value, 0, array->expression.count);
3368 parseerror(parser, "failed to build accessor search tree");
3372 array->setter = fval;
3373 return ast_block_add_expr(func->blocks[0], root);
3375 if (entity) ast_delete(entity);
3376 if (index) ast_delete(index);
3377 if (value) ast_delete(value);
3378 if (root) ast_delete(root);
3384 static bool parser_create_array_getter(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
3386 ast_expression *root = NULL;
3387 ast_value *index = NULL;
3391 /* NOTE: checking array->expression.next rather than elemtype since
3392 * for fields elemtype is a temporary fieldtype.
3394 if (!ast_istype(array->expression.next, ast_value)) {
3395 parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
3399 if (!parser_create_array_accessor(parser, array, funcname, &fval))
3401 func = fval->constval.vfunc;
3402 fval->expression.next = ast_type_copy(ast_ctx(array), elemtype);
3404 index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT);
3407 parseerror(parser, "failed to create locals for array accessor");
3410 vec_push(fval->expression.params, index);
3412 root = array_getter_node(parser, array, index, 0, array->expression.count);
3414 parseerror(parser, "failed to build accessor search tree");
3418 array->getter = fval;
3419 return ast_block_add_expr(func->blocks[0], root);
3421 if (index) ast_delete(index);
3422 if (root) ast_delete(root);
3428 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
3429 static ast_value *parse_parameter_list(parser_t *parser, ast_value *var)
3437 bool variadic = false;
3439 ctx = parser_ctx(parser);
3441 /* for the sake of less code we parse-in in this function */
3442 if (!parser_next(parser)) {
3443 parseerror(parser, "expected parameter list");
3449 /* parse variables until we hit a closing paren */
3450 while (parser->tok != ')') {
3452 /* there must be commas between them */
3453 if (parser->tok != ',') {
3454 parseerror(parser, "expected comma or end of parameter list");
3457 if (!parser_next(parser)) {
3458 parseerror(parser, "expected parameter");
3464 if (parser->tok == TOKEN_DOTS) {
3465 /* '...' indicates a varargs function */
3467 if (!parser_next(parser)) {
3468 parseerror(parser, "expected parameter");
3471 if (parser->tok != ')') {
3472 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
3478 /* for anything else just parse a typename */
3479 param = parse_typename(parser, NULL, NULL);
3482 vec_push(params, param);
3483 if (param->expression.vtype >= TYPE_VARIANT) {
3484 char typename[1024];
3485 ast_type_to_string((ast_expression*)param, typename, sizeof(typename));
3486 parseerror(parser, "type not supported as part of a parameter list: %s", typename);
3492 if (vec_size(params) == 1 && params[0]->expression.vtype == TYPE_VOID)
3496 if (vec_size(params) > 8 && opts.standard == COMPILER_QCC)
3497 (void)!parsewarning(parser, WARN_EXTENSIONS, "more than 8 parameters are not supported by this standard");
3500 if (!parser_next(parser)) {
3501 parseerror(parser, "parse error after typename");
3505 /* now turn 'var' into a function type */
3506 fval = ast_value_new(ctx, "<type()>", TYPE_FUNCTION);
3507 fval->expression.next = (ast_expression*)var;
3508 fval->expression.variadic = variadic;
3511 var->expression.params = params;
3518 for (i = 0; i < vec_size(params); ++i)
3519 ast_delete(params[i]);
3524 static ast_value *parse_arraysize(parser_t *parser, ast_value *var)
3526 ast_expression *cexp;
3527 ast_value *cval, *tmp;
3530 ctx = parser_ctx(parser);
3532 if (!parser_next(parser)) {
3534 parseerror(parser, "expected array-size");
3538 cexp = parse_expression_leave(parser, true);
3540 if (!cexp || !ast_istype(cexp, ast_value)) {
3544 parseerror(parser, "expected array-size as constant positive integer");
3547 cval = (ast_value*)cexp;
3549 tmp = ast_value_new(ctx, "<type[]>", TYPE_ARRAY);
3550 tmp->expression.next = (ast_expression*)var;
3553 if (cval->expression.vtype == TYPE_INTEGER)
3554 tmp->expression.count = cval->constval.vint;
3555 else if (cval->expression.vtype == TYPE_FLOAT)
3556 tmp->expression.count = cval->constval.vfloat;
3560 parseerror(parser, "array-size must be a positive integer constant");
3565 if (parser->tok != ']') {
3567 parseerror(parser, "expected ']' after array-size");
3570 if (!parser_next(parser)) {
3572 parseerror(parser, "error after parsing array size");
3578 /* Parse a complete typename.
3579 * for single-variables (ie. function parameters or typedefs) storebase should be NULL
3580 * but when parsing variables separated by comma
3581 * 'storebase' should point to where the base-type should be kept.
3582 * The base type makes up every bit of type information which comes *before* the
3585 * The following will be parsed in its entirety:
3587 * The 'basetype' in this case is 'void()'
3588 * and if there's a comma after it, say:
3590 * then the type-information 'void()' can be stored in 'storebase'
3592 static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef)
3594 ast_value *var, *tmp;
3597 const char *name = NULL;
3598 bool isfield = false;
3599 bool wasarray = false;
3600 size_t morefields = 0;
3602 ctx = parser_ctx(parser);
3604 /* types may start with a dot */
3605 if (parser->tok == '.') {
3607 /* if we parsed a dot we need a typename now */
3608 if (!parser_next(parser)) {
3609 parseerror(parser, "expected typename for field definition");
3613 /* Further dots are handled seperately because they won't be part of the
3616 while (parser->tok == '.') {
3618 if (!parser_next(parser)) {
3619 parseerror(parser, "expected typename for field definition");
3624 if (parser->tok == TOKEN_IDENT)
3625 cached_typedef = parser_find_typedef(parser, parser_tokval(parser), 0);
3626 if (!cached_typedef && parser->tok != TOKEN_TYPENAME) {
3627 parseerror(parser, "expected typename");
3631 /* generate the basic type value */
3632 if (cached_typedef) {
3633 var = ast_value_copy(cached_typedef);
3634 ast_value_set_name(var, "<type(from_def)>");
3636 var = ast_value_new(ctx, "<type>", parser_token(parser)->constval.t);
3638 for (; morefields; --morefields) {
3639 tmp = ast_value_new(ctx, "<.type>", TYPE_FIELD);
3640 tmp->expression.next = (ast_expression*)var;
3644 /* do not yet turn into a field - remember:
3645 * .void() foo; is a field too
3646 * .void()() foo; is a function
3650 if (!parser_next(parser)) {
3652 parseerror(parser, "parse error after typename");
3656 /* an opening paren now starts the parameter-list of a function
3657 * this is where original-QC has parameter lists.
3658 * We allow a single parameter list here.
3659 * Much like fteqcc we don't allow `float()() x`
3661 if (parser->tok == '(') {
3662 var = parse_parameter_list(parser, var);
3667 /* store the base if requested */
3669 *storebase = ast_value_copy(var);
3671 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
3672 tmp->expression.next = (ast_expression*)*storebase;
3677 /* there may be a name now */
3678 if (parser->tok == TOKEN_IDENT) {
3679 name = util_strdup(parser_tokval(parser));
3681 if (!parser_next(parser)) {
3683 parseerror(parser, "error after variable or field declaration");
3688 /* now this may be an array */
3689 if (parser->tok == '[') {
3691 var = parse_arraysize(parser, var);
3696 /* This is the point where we can turn it into a field */
3698 /* turn it into a field if desired */
3699 tmp = ast_value_new(ctx, "<type:f>", TYPE_FIELD);
3700 tmp->expression.next = (ast_expression*)var;
3704 /* now there may be function parens again */
3705 if (parser->tok == '(' && opts.standard == COMPILER_QCC)
3706 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
3707 if (parser->tok == '(' && wasarray)
3708 parseerror(parser, "arrays as part of a return type is not supported");
3709 while (parser->tok == '(') {
3710 var = parse_parameter_list(parser, var);
3719 /* finally name it */
3721 if (!ast_value_set_name(var, name)) {
3723 parseerror(parser, "internal error: failed to set name");
3726 /* free the name, ast_value_set_name duplicates */
3733 static bool parse_typedef(parser_t *parser)
3735 ast_value *typevar, *oldtype;
3736 ast_expression *old;
3738 typevar = parse_typename(parser, NULL, NULL);
3743 if ( (old = parser_find_var(parser, typevar->name)) ) {
3744 parseerror(parser, "cannot define a type with the same name as a variable: %s\n"
3745 " -> `%s` has been declared here: %s:%i",
3746 typevar->name, ast_ctx(old).file, ast_ctx(old).line);
3747 ast_delete(typevar);
3751 if ( (oldtype = parser_find_typedef(parser, typevar->name, vec_last(parser->_blocktypedefs))) ) {
3752 parseerror(parser, "type `%s` has already been declared here: %s:%i",
3753 typevar->name, ast_ctx(oldtype).file, ast_ctx(oldtype).line);
3754 ast_delete(typevar);
3758 vec_push(parser->_typedefs, typevar);
3759 util_htset(vec_last(parser->typedefs), typevar->name, typevar);
3761 if (parser->tok != ';') {
3762 parseerror(parser, "expected semicolon after typedef");
3765 if (!parser_next(parser)) {
3766 parseerror(parser, "parse error after typedef");
3773 static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofields, int qualifier, ast_value *cached_typedef, bool noref)
3777 ast_expression *old;
3781 ast_value *basetype = NULL;
3783 bool isparam = false;
3784 bool isvector = false;
3785 bool cleanvar = true;
3786 bool wasarray = false;
3790 /* get the first complete variable */
3791 var = parse_typename(parser, &basetype, cached_typedef);
3794 ast_delete(basetype);
3802 /* Part 0: finish the type */
3803 if (parser->tok == '(') {
3804 if (opts.standard == COMPILER_QCC)
3805 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
3806 var = parse_parameter_list(parser, var);
3812 /* we only allow 1-dimensional arrays */
3813 if (parser->tok == '[') {
3815 var = parse_arraysize(parser, var);
3821 if (parser->tok == '(' && wasarray) {
3822 parseerror(parser, "arrays as part of a return type is not supported");
3823 /* we'll still parse the type completely for now */
3825 /* for functions returning functions */
3826 while (parser->tok == '(') {
3827 if (opts.standard == COMPILER_QCC)
3828 parseerror(parser, "C-style function syntax is not allowed in -std=qcc");
3829 var = parse_parameter_list(parser, var);
3836 var->cvq = qualifier;
3837 /* in a noref section we simply bump the usecount */
3838 if (noref || parser->noref)
3842 * check for validity: (end_sys_..., multiple-definitions, prototypes, ...)
3843 * Also: if there was a prototype, `var` will be deleted and set to `proto` which
3844 * is then filled with the previous definition and the parameter-names replaced.
3847 /* Deal with end_sys_ vars */
3849 if (!strcmp(var->name, "end_sys_globals")) {
3851 parser->crc_globals = vec_size(parser->globals);
3854 else if (!strcmp(var->name, "end_sys_fields")) {
3856 parser->crc_fields = vec_size(parser->fields);
3859 if (was_end && var->expression.vtype == TYPE_FIELD) {
3860 if (parsewarning(parser, WARN_END_SYS_FIELDS,
3861 "global '%s' hint should not be a field",
3862 parser_tokval(parser)))
3869 if (!nofields && var->expression.vtype == TYPE_FIELD)
3871 /* deal with field declarations */
3872 old = parser_find_field(parser, var->name);
3874 if (parsewarning(parser, WARN_FIELD_REDECLARED, "field `%s` already declared here: %s:%i",
3875 var->name, ast_ctx(old).file, (int)ast_ctx(old).line))
3884 parseerror(parser, "field `%s` already declared here: %s:%i",
3885 var->name, ast_ctx(old).file, ast_ctx(old).line);
3890 if (opts.standard == COMPILER_QCC &&
3891 (old = parser_find_global(parser, var->name)))
3893 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
3894 parseerror(parser, "field `%s` already declared here: %s:%i",
3895 var->name, ast_ctx(old).file, ast_ctx(old).line);
3902 /* deal with other globals */
3903 old = parser_find_global(parser, var->name);
3904 if (old && var->expression.vtype == TYPE_FUNCTION && old->expression.vtype == TYPE_FUNCTION)
3906 /* This is a function which had a prototype */
3907 if (!ast_istype(old, ast_value)) {
3908 parseerror(parser, "internal error: prototype is not an ast_value");
3912 proto = (ast_value*)old;
3913 if (!ast_compare_type((ast_expression*)proto, (ast_expression*)var)) {
3914 parseerror(parser, "conflicting types for `%s`, previous declaration was here: %s:%i",
3916 ast_ctx(proto).file, ast_ctx(proto).line);
3920 /* we need the new parameter-names */
3921 for (i = 0; i < vec_size(proto->expression.params); ++i)
3922 ast_value_set_name(proto->expression.params[i], var->expression.params[i]->name);
3930 if (opts.standard == COMPILER_GMQCC) {
3931 parseerror(parser, "global `%s` already declared here: %s:%i",
3932 var->name, ast_ctx(old).file, ast_ctx(old).line);
3936 if (parsewarning(parser, WARN_DOUBLE_DECLARATION,
3937 "global `%s` already declared here: %s:%i",
3938 var->name, ast_ctx(old).file, ast_ctx(old).line))
3943 proto = (ast_value*)old;
3944 if (!ast_istype(old, ast_value)) {
3945 parseerror(parser, "internal error: not an ast_value");
3954 if (opts.standard == COMPILER_QCC &&
3955 (old = parser_find_field(parser, var->name)))
3957 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
3958 parseerror(parser, "global `%s` already declared here: %s:%i",
3959 var->name, ast_ctx(old).file, ast_ctx(old).line);
3966 else /* it's not a global */
3968 old = parser_find_local(parser, var->name, vec_size(parser->variables)-1, &isparam);
3969 if (old && !isparam) {
3970 parseerror(parser, "local `%s` already declared here: %s:%i",
3971 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
3975 old = parser_find_local(parser, var->name, 0, &isparam);
3976 if (old && isparam) {
3977 if (parsewarning(parser, WARN_LOCAL_SHADOWS,
3978 "local `%s` is shadowing a parameter", var->name))
3980 parseerror(parser, "local `%s` already declared here: %s:%i",
3981 var->name, ast_ctx(old).file, (int)ast_ctx(old).line);
3985 if (opts.standard != COMPILER_GMQCC) {
3994 * Create the global/local, and deal with vector types.
3997 if (var->expression.vtype == TYPE_VECTOR)
3999 else if (var->expression.vtype == TYPE_FIELD &&
4000 var->expression.next->expression.vtype == TYPE_VECTOR)
4004 if (!create_vector_members(var, me)) {
4011 /* deal with global variables, fields, functions */
4012 if (!nofields && var->expression.vtype == TYPE_FIELD && parser->tok != '=') {
4013 var->isfield = true;
4014 vec_push(parser->fields, (ast_expression*)var);
4015 util_htset(parser->htfields, var->name, var);
4017 for (i = 0; i < 3; ++i) {
4018 vec_push(parser->fields, (ast_expression*)me[i]);
4019 util_htset(parser->htfields, me[i]->name, me[i]);
4024 vec_push(parser->globals, (ast_expression*)var);
4025 util_htset(parser->htglobals, var->name, var);
4027 for (i = 0; i < 3; ++i) {
4028 vec_push(parser->globals, (ast_expression*)me[i]);
4029 util_htset(parser->htglobals, me[i]->name, me[i]);
4034 vec_push(localblock->locals, var);
4035 parser_addlocal(parser, var->name, (ast_expression*)var);
4037 for (i = 0; i < 3; ++i) {
4038 parser_addlocal(parser, me[i]->name, (ast_expression*)me[i]);
4039 ast_block_collect(localblock, (ast_expression*)me[i]);
4045 me[0] = me[1] = me[2] = NULL;
4050 if (var->expression.vtype == TYPE_ARRAY) {
4052 snprintf(name, sizeof(name), "%s##SET", var->name);
4053 if (!parser_create_array_setter(parser, var, name))
4055 snprintf(name, sizeof(name), "%s##GET", var->name);
4056 if (!parser_create_array_getter(parser, var, var->expression.next, name))
4059 else if (!localblock && !nofields &&
4060 var->expression.vtype == TYPE_FIELD &&
4061 var->expression.next->expression.vtype == TYPE_ARRAY)
4064 ast_expression *telem;
4066 ast_value *array = (ast_value*)var->expression.next;
4068 if (!ast_istype(var->expression.next, ast_value)) {
4069 parseerror(parser, "internal error: field element type must be an ast_value");
4073 snprintf(name, sizeof(name), "%s##SETF", var->name);
4074 if (!parser_create_array_field_setter(parser, array, name))
4077 telem = ast_type_copy(ast_ctx(var), array->expression.next);
4078 tfield = ast_value_new(ast_ctx(var), "<.type>", TYPE_FIELD);
4079 tfield->expression.next = telem;
4080 snprintf(name, sizeof(name), "%s##GETFP", var->name);
4081 if (!parser_create_array_getter(parser, array, (ast_expression*)tfield, name)) {
4089 if (parser->tok == ';') {
4090 ast_delete(basetype);
4091 if (!parser_next(parser)) {
4092 parseerror(parser, "error after variable declaration");
4098 if (parser->tok == ',')
4102 if (!var || (!localblock && !nofields && basetype->expression.vtype == TYPE_FIELD)) {
4105 parseerror(parser, "missing comma or semicolon while parsing variables");
4109 if (localblock && opts.standard == COMPILER_QCC) {
4110 if (parsewarning(parser, WARN_LOCAL_CONSTANTS,
4111 "initializing expression turns variable `%s` into a constant in this standard",
4118 if (parser->tok != '{') {
4119 if (parser->tok != '=') {
4120 parseerror(parser, "missing semicolon or initializer, got: `%s`", parser_tokval(parser));
4124 if (!parser_next(parser)) {
4125 parseerror(parser, "error parsing initializer");
4129 else if (opts.standard == COMPILER_QCC) {
4130 parseerror(parser, "expected '=' before function body in this standard");
4133 if (parser->tok == '#') {
4134 ast_function *func = NULL;
4137 parseerror(parser, "cannot declare builtins within functions");
4140 if (var->expression.vtype != TYPE_FUNCTION) {
4141 parseerror(parser, "unexpected builtin number, '%s' is not a function", var->name);
4144 if (!parser_next(parser)) {
4145 parseerror(parser, "expected builtin number");
4148 if (parser->tok != TOKEN_INTCONST) {
4149 parseerror(parser, "builtin number must be an integer constant");
4152 if (parser_token(parser)->constval.i < 0) {
4153 parseerror(parser, "builtin number must be an integer greater than zero");
4157 if (var->hasvalue) {
4158 (void)!parsewarning(parser, WARN_DOUBLE_DECLARATION,
4159 "builtin `%s` has already been defined\n"
4160 " -> previous declaration here: %s:%i",
4161 var->name, ast_ctx(var).file, (int)ast_ctx(var).line);
4165 func = ast_function_new(ast_ctx(var), var->name, var);
4167 parseerror(parser, "failed to allocate function for `%s`", var->name);
4170 vec_push(parser->functions, func);
4172 func->builtin = -parser_token(parser)->constval.i-1;
4175 if (!parser_next(parser)) {
4176 parseerror(parser, "expected comma or semicolon");
4178 ast_function_delete(func);
4179 var->constval.vfunc = NULL;
4183 else if (parser->tok == '{' || parser->tok == '[')
4187 parseerror(parser, "cannot declare functions within functions");
4192 ast_ctx(proto) = parser_ctx(parser);
4194 if (!parse_function_body(parser, var))
4196 ast_delete(basetype);
4197 for (i = 0; i < vec_size(parser->gotos); ++i)
4198 parseerror(parser, "undefined label: `%s`", parser->gotos[i]->name);
4199 vec_free(parser->gotos);
4200 vec_free(parser->labels);
4203 ast_expression *cexp;
4206 cexp = parse_expression_leave(parser, true);
4211 cval = (ast_value*)cexp;
4212 if (!ast_istype(cval, ast_value) || ((!cval->hasvalue || cval->cvq != CV_CONST) && !cval->isfield))
4213 parseerror(parser, "cannot initialize a global constant variable with a non-constant expression");
4216 if (opts.standard != COMPILER_GMQCC &&
4217 !OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
4218 qualifier != CV_VAR)
4220 var->cvq = CV_CONST;
4222 var->hasvalue = true;
4223 if (cval->expression.vtype == TYPE_STRING)
4224 var->constval.vstring = parser_strdup(cval->constval.vstring);
4225 else if (cval->expression.vtype == TYPE_FIELD)
4226 var->constval.vfield = cval;
4228 memcpy(&var->constval, &cval->constval, sizeof(var->constval));
4233 shunt sy = { NULL, NULL };
4236 vec_push(sy.out, syexp(ast_ctx(var), (ast_expression*)var));
4237 vec_push(sy.out, syexp(ast_ctx(cexp), (ast_expression*)cexp));
4238 vec_push(sy.ops, syop(ast_ctx(var), parser->assign_op));
4239 if (!parser_sy_apply_operator(parser, &sy))
4242 if (vec_size(sy.out) != 1 && vec_size(sy.ops) != 0)
4243 parseerror(parser, "internal error: leaked operands");
4244 if (!ast_block_add_expr(localblock, (ast_expression*)sy.out[0].out))
4254 if (parser->tok == ',') {
4255 if (!parser_next(parser)) {
4256 parseerror(parser, "expected another variable");
4260 if (parser->tok != TOKEN_IDENT) {
4261 parseerror(parser, "expected another variable");
4264 var = ast_value_copy(basetype);
4266 ast_value_set_name(var, parser_tokval(parser));
4267 if (!parser_next(parser)) {
4268 parseerror(parser, "error parsing variable declaration");
4274 if (parser->tok != ';') {
4275 parseerror(parser, "missing semicolon after variables");
4279 if (!parser_next(parser)) {
4280 parseerror(parser, "parse error after variable declaration");
4284 ast_delete(basetype);
4288 if (cleanvar && var)
4290 ast_delete(basetype);
4294 ast_delete(basetype);
4295 if (cleanvar && var)
4297 if (me[0]) ast_member_delete(me[0]);
4298 if (me[1]) ast_member_delete(me[1]);
4299 if (me[2]) ast_member_delete(me[2]);
4303 static bool parser_global_statement(parser_t *parser)
4307 ast_value *istype = NULL;
4309 if (parser->tok == TOKEN_IDENT)
4310 istype = parser_find_typedef(parser, parser_tokval(parser), 0);
4312 if (istype || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
4314 return parse_variable(parser, NULL, false, CV_NONE, istype, false);
4316 else if (parse_var_qualifiers(parser, false, &cvq, &noref))
4318 if (cvq == CV_WRONG)
4320 return parse_variable(parser, NULL, true, cvq, NULL, noref);
4322 else if (parser->tok == TOKEN_KEYWORD)
4324 if (!strcmp(parser_tokval(parser), "typedef")) {
4325 if (!parser_next(parser)) {
4326 parseerror(parser, "expected type definition after 'typedef'");
4329 return parse_typedef(parser);
4331 parseerror(parser, "unrecognized keyword `%s`", parser_tokval(parser));
4334 else if (parser->tok == '#')
4336 return parse_pragma(parser);
4338 else if (parser->tok == '$')
4340 if (!parser_next(parser)) {
4341 parseerror(parser, "parse error");
4347 parseerror(parser, "unexpected token: %s", parser->lex->tok.value);
4353 static uint16_t progdefs_crc_sum(uint16_t old, const char *str)
4355 return util_crc16(old, str, strlen(str));
4358 static void progdefs_crc_file(const char *str)
4360 /* write to progdefs.h here */
4364 static uint16_t progdefs_crc_both(uint16_t old, const char *str)
4366 old = progdefs_crc_sum(old, str);
4367 progdefs_crc_file(str);
4371 static void generate_checksum(parser_t *parser)
4373 uint16_t crc = 0xFFFF;
4377 crc = progdefs_crc_both(crc, "\n/* file generated by qcc, do not modify */\n\ntypedef struct\n{");
4378 crc = progdefs_crc_sum(crc, "\tint\tpad[28];\n");
4380 progdefs_crc_file("\tint\tpad;\n");
4381 progdefs_crc_file("\tint\tofs_return[3];\n");
4382 progdefs_crc_file("\tint\tofs_parm0[3];\n");
4383 progdefs_crc_file("\tint\tofs_parm1[3];\n");
4384 progdefs_crc_file("\tint\tofs_parm2[3];\n");
4385 progdefs_crc_file("\tint\tofs_parm3[3];\n");
4386 progdefs_crc_file("\tint\tofs_parm4[3];\n");
4387 progdefs_crc_file("\tint\tofs_parm5[3];\n");
4388 progdefs_crc_file("\tint\tofs_parm6[3];\n");
4389 progdefs_crc_file("\tint\tofs_parm7[3];\n");
4391 for (i = 0; i < parser->crc_globals; ++i) {
4392 if (!ast_istype(parser->globals[i], ast_value))
4394 value = (ast_value*)(parser->globals[i]);
4395 switch (value->expression.vtype) {
4396 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
4397 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
4398 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
4399 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
4401 crc = progdefs_crc_both(crc, "\tint\t");
4404 crc = progdefs_crc_both(crc, value->name);
4405 crc = progdefs_crc_both(crc, ";\n");
4407 crc = progdefs_crc_both(crc, "} globalvars_t;\n\ntypedef struct\n{\n");
4408 for (i = 0; i < parser->crc_fields; ++i) {
4409 if (!ast_istype(parser->fields[i], ast_value))
4411 value = (ast_value*)(parser->fields[i]);
4412 switch (value->expression.next->expression.vtype) {
4413 case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break;
4414 case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break;
4415 case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break;
4416 case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break;
4418 crc = progdefs_crc_both(crc, "\tint\t");
4421 crc = progdefs_crc_both(crc, value->name);
4422 crc = progdefs_crc_both(crc, ";\n");
4424 crc = progdefs_crc_both(crc, "} entvars_t;\n\n");
4429 static parser_t *parser;
4435 parser = (parser_t*)mem_a(sizeof(parser_t));
4439 memset(parser, 0, sizeof(*parser));
4441 for (i = 0; i < operator_count; ++i) {
4442 if (operators[i].id == opid1('=')) {
4443 parser->assign_op = operators+i;
4447 if (!parser->assign_op) {
4448 printf("internal error: initializing parser: failed to find assign operator\n");
4453 vec_push(parser->variables, parser->htfields = util_htnew(PARSER_HT_SIZE));
4454 vec_push(parser->variables, parser->htglobals = util_htnew(PARSER_HT_SIZE));
4455 vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
4456 vec_push(parser->_blocktypedefs, 0);
4460 bool parser_compile()
4462 /* initial lexer/parser state */
4463 parser->lex->flags.noops = true;
4465 if (parser_next(parser))
4467 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
4469 if (!parser_global_statement(parser)) {
4470 if (parser->tok == TOKEN_EOF)
4471 parseerror(parser, "unexpected eof");
4472 else if (!parser->errors)
4473 parseerror(parser, "there have been errors, bailing out");
4474 lex_close(parser->lex);
4480 parseerror(parser, "parse error");
4481 lex_close(parser->lex);
4486 lex_close(parser->lex);
4489 return !parser->errors;
4492 bool parser_compile_file(const char *filename)
4494 parser->lex = lex_open(filename);
4496 con_err("failed to open file \"%s\"\n", filename);
4499 return parser_compile();
4502 bool parser_compile_string_len(const char *name, const char *str, size_t len)
4504 parser->lex = lex_open_string(str, len, name);
4506 con_err("failed to create lexer for string \"%s\"\n", name);
4509 return parser_compile();
4512 bool parser_compile_string(const char *name, const char *str)
4514 parser->lex = lex_open_string(str, strlen(str), name);
4516 con_err("failed to create lexer for string \"%s\"\n", name);
4519 return parser_compile();
4522 void parser_cleanup()
4525 for (i = 0; i < vec_size(parser->accessors); ++i) {
4526 ast_delete(parser->accessors[i]->constval.vfunc);
4527 parser->accessors[i]->constval.vfunc = NULL;
4528 ast_delete(parser->accessors[i]);
4530 for (i = 0; i < vec_size(parser->functions); ++i) {
4531 ast_delete(parser->functions[i]);
4533 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
4534 ast_delete(parser->imm_vector[i]);
4536 for (i = 0; i < vec_size(parser->imm_string); ++i) {
4537 ast_delete(parser->imm_string[i]);
4539 for (i = 0; i < vec_size(parser->imm_float); ++i) {
4540 ast_delete(parser->imm_float[i]);
4542 for (i = 0; i < vec_size(parser->fields); ++i) {
4543 ast_delete(parser->fields[i]);
4545 for (i = 0; i < vec_size(parser->globals); ++i) {
4546 ast_delete(parser->globals[i]);
4548 vec_free(parser->accessors);
4549 vec_free(parser->functions);
4550 vec_free(parser->imm_vector);
4551 vec_free(parser->imm_string);
4552 vec_free(parser->imm_float);
4553 vec_free(parser->globals);
4554 vec_free(parser->fields);
4556 for (i = 0; i < vec_size(parser->variables); ++i)
4557 util_htdel(parser->variables[i]);
4558 vec_free(parser->variables);
4559 vec_free(parser->_blocklocals);
4560 vec_free(parser->_locals);
4562 for (i = 0; i < vec_size(parser->_typedefs); ++i)
4563 ast_delete(parser->_typedefs[i]);
4564 vec_free(parser->_typedefs);
4565 for (i = 0; i < vec_size(parser->typedefs); ++i)
4566 util_htdel(parser->typedefs[i]);
4567 vec_free(parser->typedefs);
4568 vec_free(parser->_blocktypedefs);
4570 vec_free(parser->_block_ctx);
4572 vec_free(parser->labels);
4573 vec_free(parser->gotos);
4578 bool parser_finish(const char *output)
4584 if (!parser->errors)
4586 ir = ir_builder_new("gmqcc_out");
4588 con_out("failed to allocate builder\n");
4592 for (i = 0; i < vec_size(parser->fields); ++i) {
4595 if (!ast_istype(parser->fields[i], ast_value))
4597 field = (ast_value*)parser->fields[i];
4598 hasvalue = field->hasvalue;
4599 field->hasvalue = false;
4600 if (!ast_global_codegen((ast_value*)field, ir, true)) {
4601 con_out("failed to generate field %s\n", field->name);
4602 ir_builder_delete(ir);
4607 ast_expression *subtype;
4608 field->hasvalue = true;
4609 subtype = field->expression.next;
4610 ifld = ir_builder_create_field(ir, field->name, subtype->expression.vtype);
4611 if (subtype->expression.vtype == TYPE_FIELD)
4612 ifld->fieldtype = subtype->expression.next->expression.vtype;
4613 else if (subtype->expression.vtype == TYPE_FUNCTION)
4614 ifld->outtype = subtype->expression.next->expression.vtype;
4615 (void)!ir_value_set_field(field->ir_v, ifld);
4618 for (i = 0; i < vec_size(parser->globals); ++i) {
4620 if (!ast_istype(parser->globals[i], ast_value))
4622 asvalue = (ast_value*)(parser->globals[i]);
4623 if (!asvalue->uses && !asvalue->hasvalue && asvalue->expression.vtype != TYPE_FUNCTION) {
4624 retval = retval && !genwarning(ast_ctx(asvalue), WARN_UNUSED_VARIABLE,
4625 "unused global: `%s`", asvalue->name);
4627 if (!ast_global_codegen(asvalue, ir, false)) {
4628 con_out("failed to generate global %s\n", asvalue->name);
4629 ir_builder_delete(ir);
4633 for (i = 0; i < vec_size(parser->imm_float); ++i) {
4634 if (!ast_global_codegen(parser->imm_float[i], ir, false)) {
4635 con_out("failed to generate global %s\n", parser->imm_float[i]->name);
4636 ir_builder_delete(ir);
4640 for (i = 0; i < vec_size(parser->imm_string); ++i) {
4641 if (!ast_global_codegen(parser->imm_string[i], ir, false)) {
4642 con_out("failed to generate global %s\n", parser->imm_string[i]->name);
4643 ir_builder_delete(ir);
4647 for (i = 0; i < vec_size(parser->imm_vector); ++i) {
4648 if (!ast_global_codegen(parser->imm_vector[i], ir, false)) {
4649 con_out("failed to generate global %s\n", parser->imm_vector[i]->name);
4650 ir_builder_delete(ir);
4654 for (i = 0; i < vec_size(parser->globals); ++i) {
4656 if (!ast_istype(parser->globals[i], ast_value))
4658 asvalue = (ast_value*)(parser->globals[i]);
4659 if (!ast_generate_accessors(asvalue, ir)) {
4660 ir_builder_delete(ir);
4664 for (i = 0; i < vec_size(parser->fields); ++i) {
4666 asvalue = (ast_value*)(parser->fields[i]->expression.next);
4668 if (!ast_istype((ast_expression*)asvalue, ast_value))
4670 if (asvalue->expression.vtype != TYPE_ARRAY)
4672 if (!ast_generate_accessors(asvalue, ir)) {
4673 ir_builder_delete(ir);
4677 for (i = 0; i < vec_size(parser->functions); ++i) {
4678 if (!ast_function_codegen(parser->functions[i], ir)) {
4679 con_out("failed to generate function %s\n", parser->functions[i]->name);
4680 ir_builder_delete(ir);
4685 ir_builder_dump(ir, con_out);
4686 for (i = 0; i < vec_size(parser->functions); ++i) {
4687 if (!ir_function_finalize(parser->functions[i]->ir_func)) {
4688 con_out("failed to finalize function %s\n", parser->functions[i]->name);
4689 ir_builder_delete(ir);
4696 ir_builder_dump(ir, con_out);
4698 generate_checksum(parser);
4700 if (!ir_builder_generate(ir, output)) {
4701 con_out("*** failed to generate output file\n");
4702 ir_builder_delete(ir);
4707 ir_builder_delete(ir);
4711 con_out("*** there were compile errors\n");