16 MEM_VECTOR_MAKE(varentry_t, globals);
17 MEM_VECTOR_MAKE(varentry_t, fields);
18 MEM_VECTOR_MAKE(ast_function*, functions);
19 MEM_VECTOR_MAKE(ast_value*, imm_float);
20 MEM_VECTOR_MAKE(ast_value*, imm_string);
21 MEM_VECTOR_MAKE(ast_value*, imm_vector);
23 ast_value *imm_float_zero;
24 ast_value *imm_vector_zero;
26 ast_function *function;
27 MEM_VECTOR_MAKE(varentry_t, locals);
32 /* TYPE_FIELD -> parser_find_fields is used instead of find_var
33 * TODO: TYPE_VECTOR -> x, y and z are accepted in the gmqcc standard
34 * anything else: type error
39 MEM_VEC_FUNCTIONS(parser_t, varentry_t, globals)
40 MEM_VEC_FUNCTIONS(parser_t, varentry_t, fields)
41 MEM_VEC_FUNCTIONS(parser_t, ast_value*, imm_float)
42 MEM_VEC_FUNCTIONS(parser_t, ast_value*, imm_string)
43 MEM_VEC_FUNCTIONS(parser_t, ast_value*, imm_vector)
44 MEM_VEC_FUNCTIONS(parser_t, varentry_t, locals)
45 MEM_VEC_FUNCTIONS(parser_t, ast_function*, functions)
47 static bool GMQCC_WARN parser_pop_local(parser_t *parser);
48 static bool parser_variable(parser_t *parser, ast_block *localblock);
49 static ast_block* parser_parse_block(parser_t *parser, bool warnreturn);
50 static bool parser_parse_block_into(parser_t *parser, ast_block *block, bool warnreturn);
51 static ast_expression* parser_parse_statement_or_block(parser_t *parser);
52 static ast_expression* parser_expression_leave(parser_t *parser, bool stopatcomma);
53 static ast_expression* parser_expression(parser_t *parser, bool stopatcomma);
55 void parseerror(parser_t *parser, const char *fmt, ...)
62 vprintmsg(LVL_ERROR, parser->lex->tok->ctx.file, parser->lex->tok->ctx.line, "parse error", fmt, ap);
66 /* returns true if it counts as an error */
67 bool GMQCC_WARN parsewarning(parser_t *parser, int warntype, const char *fmt, ...)
70 int lvl = LVL_WARNING;
72 if (!OPTS_WARN(warntype))
81 vprintmsg(lvl, parser->lex->tok->ctx.file, parser->lex->tok->ctx.line, "warning", fmt, ap);
87 /**********************************************************************
88 * some maths used for constant folding
91 vector vec3_add(vector a, vector b)
100 vector vec3_sub(vector a, vector b)
109 qcfloat vec3_mulvv(vector a, vector b)
111 return (a.x * b.x + a.y * b.y + a.z * b.z);
114 vector vec3_mulvf(vector a, float b)
123 /**********************************************************************
127 bool parser_next(parser_t *parser)
129 /* lex_do kills the previous token */
130 parser->tok = lex_do(parser->lex);
131 if (parser->tok == TOKEN_EOF)
133 if (parser->tok >= TOKEN_ERROR) {
134 parseerror(parser, "lex error");
140 /* lift a token out of the parser so it's not destroyed by parser_next */
141 token *parser_lift(parser_t *parser)
143 token *tok = parser->lex->tok;
144 parser->lex->tok = NULL;
148 #define parser_tokval(p) (p->lex->tok->value)
149 #define parser_token(p) (p->lex->tok)
150 #define parser_ctx(p) (p->lex->tok->ctx)
152 ast_value* parser_const_float(parser_t *parser, double d)
156 for (i = 0; i < parser->imm_float_count; ++i) {
157 if (parser->imm_float[i]->constval.vfloat == d)
158 return parser->imm_float[i];
160 out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_FLOAT);
162 out->constval.vfloat = d;
163 if (!parser_t_imm_float_add(parser, out)) {
164 ast_value_delete(out);
170 ast_value* parser_const_float_0(parser_t *parser)
172 if (!parser->imm_float_zero)
173 parser->imm_float_zero = parser_const_float(parser, 0);
174 return parser->imm_float_zero;
177 static char *parser_strdup(const char *str)
180 /* actually dup empty strings */
181 char *out = mem_a(1);
185 return util_strdup(str);
188 ast_value* parser_const_string(parser_t *parser, const char *str)
192 for (i = 0; i < parser->imm_string_count; ++i) {
193 if (!strcmp(parser->imm_string[i]->constval.vstring, str))
194 return parser->imm_string[i];
196 out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_STRING);
198 out->constval.vstring = parser_strdup(str);
199 if (!parser_t_imm_string_add(parser, out)) {
200 ast_value_delete(out);
206 ast_value* parser_const_vector(parser_t *parser, vector v)
210 for (i = 0; i < parser->imm_vector_count; ++i) {
211 if (!memcmp(&parser->imm_vector[i]->constval.vvec, &v, sizeof(v)))
212 return parser->imm_vector[i];
214 out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_VECTOR);
216 out->constval.vvec = v;
217 if (!parser_t_imm_vector_add(parser, out)) {
218 ast_value_delete(out);
224 ast_value* parser_const_vector_f(parser_t *parser, float x, float y, float z)
230 return parser_const_vector(parser, v);
233 ast_value* parser_const_vector_0(parser_t *parser)
235 if (!parser->imm_vector_zero)
236 parser->imm_vector_zero = parser_const_vector_f(parser, 0, 0, 0);
237 return parser->imm_vector_zero;
240 ast_expression* parser_find_field(parser_t *parser, const char *name)
243 for (i = 0; i < parser->fields_count; ++i) {
244 if (!strcmp(parser->fields[i].name, name))
245 return parser->fields[i].var;
250 ast_expression* parser_find_global(parser_t *parser, const char *name)
253 for (i = 0; i < parser->globals_count; ++i) {
254 if (!strcmp(parser->globals[i].name, name))
255 return parser->globals[i].var;
260 ast_expression* parser_find_param(parser_t *parser, const char *name)
264 if (!parser->function)
266 fun = parser->function->vtype;
267 for (i = 0; i < fun->expression.params_count; ++i) {
268 if (!strcmp(fun->expression.params[i]->name, name))
269 return (ast_expression*)(fun->expression.params[i]);
274 ast_expression* parser_find_local(parser_t *parser, const char *name, size_t upto, bool *isparam)
278 for (i = parser->locals_count; i > upto;) {
280 if (!strcmp(parser->locals[i].name, name))
281 return parser->locals[i].var;
284 return parser_find_param(parser, name);
287 ast_expression* parser_find_var(parser_t *parser, const char *name)
291 v = parser_find_local(parser, name, 0, &dummy);
292 if (!v) v = parser_find_global(parser, name);
297 MEM_VECTOR_MAKE(ast_value*, p);
299 MEM_VEC_FUNCTIONS(paramlist_t, ast_value*, p)
301 static ast_value *parser_parse_type(parser_t *parser, int basetype, bool *isfunc)
305 lex_ctx ctx = parser_ctx(parser);
306 int vtype = basetype;
309 bool variadic = false;
311 MEM_VECTOR_INIT(¶ms, p);
315 if (parser->tok == '(') {
320 bool isfield = false;
321 bool isfuncparam = false;
323 if (!parser_next(parser))
326 if (parser->tok == ')')
329 if (parser->tok == '.') {
331 if (!parser_next(parser)) {
332 parseerror(parser, "expected field parameter type");
337 if (parser->tok == TOKEN_DOTS) {
340 if (!parser_next(parser))
342 if (parser->tok != ')') {
343 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
346 if (opts_standard == COMPILER_QCC) {
347 if (parsewarning(parser, WARN_EXTENSIONS, "variadic functions are not available in this standard"))
353 temptype = parser_token(parser)->constval.t;
354 if (!parser_next(parser))
357 param = parser_parse_type(parser, temptype, &isfuncparam);
362 if (parser->tok == TOKEN_IDENT) {
363 /* named parameter */
364 if (!ast_value_set_name(param, parser_tokval(parser)))
366 if (!parser_next(parser))
370 /* This comes before the isfield part! */
372 ast_value *fval = ast_value_new(ast_ctx(param), param->name, TYPE_FUNCTION);
377 fval->expression.next = (ast_expression*)param;
378 MEM_VECTOR_MOVE(¶m->expression, params, &fval->expression, params);
379 fval->expression.variadic = param->expression.variadic;
384 fld = ast_value_new(ctx, param->name, TYPE_FIELD);
385 fld->expression.next = (ast_expression*)param;
389 if (!paramlist_t_p_add(¶ms, param)) {
390 parseerror(parser, "Out of memory while parsing typename");
394 if (parser->tok == ',')
396 if (parser->tok == ')')
398 parseerror(parser, "Unexpected token");
401 if (!parser_next(parser))
405 var = ast_value_new(ctx, "<unnamed>", vtype);
408 var->expression.variadic = variadic;
409 MEM_VECTOR_MOVE(¶ms, p, &var->expression, params);
412 for (i = 0; i < params.p_count; ++i)
413 ast_value_delete(params.p[i]);
414 MEM_VECTOR_CLEAR(¶ms, p);
420 size_t etype; /* 0 = expression, others are operators */
424 ast_block *block; /* for commas and function calls */
429 MEM_VECTOR_MAKE(sy_elem, out);
430 MEM_VECTOR_MAKE(sy_elem, ops);
432 MEM_VEC_FUNCTIONS(shunt, sy_elem, out)
433 MEM_VEC_FUNCTIONS(shunt, sy_elem, ops)
435 static sy_elem syexp(lex_ctx ctx, ast_expression *v) {
445 static sy_elem syblock(lex_ctx ctx, ast_block *v) {
448 e.out = (ast_expression*)v;
455 static sy_elem syop(lex_ctx ctx, const oper_info *op) {
457 e.etype = 1 + (op - operators);
465 static sy_elem syparen(lex_ctx ctx, int p, size_t off) {
477 # define DEBUGSHUNTDO(x) x
479 # define DEBUGSHUNTDO(x)
482 static bool parser_sy_pop(parser_t *parser, shunt *sy)
486 ast_expression *out = NULL;
487 ast_expression *exprs[3];
488 ast_block *blocks[3];
489 ast_value *asvalue[3];
491 qcint generated_op = 0;
493 if (!sy->ops_count) {
494 parseerror(parser, "internal error: missing operator");
498 if (sy->ops[sy->ops_count-1].paren) {
499 parseerror(parser, "unmatched parenthesis");
503 op = &operators[sy->ops[sy->ops_count-1].etype - 1];
504 ctx = sy->ops[sy->ops_count-1].ctx;
506 DEBUGSHUNTDO(printf("apply %s\n", op->op));
508 if (sy->out_count < op->operands) {
509 parseerror(parser, "internal error: not enough operands: %i (operator %s (%i))", sy->out_count,
510 op->op, (int)op->id);
516 sy->out_count -= op->operands;
517 for (i = 0; i < op->operands; ++i) {
518 exprs[i] = sy->out[sy->out_count+i].out;
519 blocks[i] = sy->out[sy->out_count+i].block;
520 asvalue[i] = (ast_value*)exprs[i];
523 if (blocks[0] && !blocks[0]->exprs_count && op->id != opid1(',')) {
524 parseerror(parser, "internal error: operator cannot be applied on empty blocks");
528 #define NotSameType(T) \
529 (exprs[0]->expression.vtype != exprs[1]->expression.vtype || \
530 exprs[0]->expression.vtype != T)
531 #define CanConstFold1(A) \
532 (ast_istype((A), ast_value) && ((ast_value*)(A))->isconst)
533 #define CanConstFold(A, B) \
534 (CanConstFold1(A) && CanConstFold1(B))
535 #define ConstV(i) (asvalue[(i)]->constval.vvec)
536 #define ConstF(i) (asvalue[(i)]->constval.vfloat)
537 #define ConstS(i) (asvalue[(i)]->constval.vstring)
541 parseerror(parser, "internal error: unhandled operator: %s (%i)", op->op, (int)op->id);
545 if (exprs[0]->expression.vtype == TYPE_ENTITY) {
546 if (exprs[1]->expression.vtype != TYPE_FIELD) {
547 parseerror(parser, "type error: right hand of member-operand should be an entity-field");
550 out = (ast_expression*)ast_entfield_new(ctx, exprs[0], exprs[1]);
552 else if (exprs[0]->expression.vtype == TYPE_VECTOR) {
553 parseerror(parser, "internal error: vector access is not supposed to be handled at this point");
557 parseerror(parser, "type error: member-of operator on something that is not an entity or vector");
564 if (!ast_block_exprs_add(blocks[0], exprs[1]))
567 blocks[0] = ast_block_new(ctx);
568 if (!ast_block_exprs_add(blocks[0], exprs[0]) ||
569 !ast_block_exprs_add(blocks[0], exprs[1]))
574 if (!ast_block_set_type(blocks[0], exprs[1]))
577 sy->out[sy->out_count++] = syblock(ctx, blocks[0]);
581 switch (exprs[0]->expression.vtype) {
583 if (CanConstFold1(exprs[0]))
584 out = (ast_expression*)parser_const_float(parser, -ConstF(0));
586 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F,
587 (ast_expression*)parser_const_float_0(parser),
591 if (CanConstFold1(exprs[0]))
592 out = (ast_expression*)parser_const_vector_f(parser,
593 -ConstV(0).x, -ConstV(0).y, -ConstV(0).z);
595 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V,
596 (ast_expression*)parser_const_vector_0(parser),
600 parseerror(parser, "invalid types used in expression: cannot negate type %s",
601 type_name[exprs[0]->expression.vtype]);
607 switch (exprs[0]->expression.vtype) {
609 if (CanConstFold1(exprs[0]))
610 out = (ast_expression*)parser_const_float(parser, !ConstF(0));
612 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
615 if (CanConstFold1(exprs[0]))
616 out = (ast_expression*)parser_const_float(parser,
617 (!ConstV(0).x && !ConstV(0).y && !ConstV(0).z));
619 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[0]);
622 if (CanConstFold1(exprs[0]))
623 out = (ast_expression*)parser_const_float(parser, !ConstS(0) || !*ConstS(0));
625 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[0]);
627 /* we don't constant-fold NOT for these types */
629 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_ENT, exprs[0]);
632 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_FNC, exprs[0]);
635 parseerror(parser, "invalid types used in expression: cannot logically negate type %s",
636 type_name[exprs[0]->expression.vtype]);
642 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
643 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
645 parseerror(parser, "invalid types used in expression: cannot add type %s and %s",
646 type_name[exprs[0]->expression.vtype],
647 type_name[exprs[1]->expression.vtype]);
650 switch (exprs[0]->expression.vtype) {
652 if (CanConstFold(exprs[0], exprs[1]))
654 out = (ast_expression*)parser_const_float(parser, ConstF(0) + ConstF(1));
657 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F, exprs[0], exprs[1]);
660 if (CanConstFold(exprs[0], exprs[1]))
661 out = (ast_expression*)parser_const_vector(parser, vec3_add(ConstV(0), ConstV(1)));
663 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_V, exprs[0], exprs[1]);
666 parseerror(parser, "invalid types used in expression: cannot add type %s and %s",
667 type_name[exprs[0]->expression.vtype],
668 type_name[exprs[1]->expression.vtype]);
673 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
674 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
676 parseerror(parser, "invalid types used in expression: cannot subtract type %s from %s",
677 type_name[exprs[1]->expression.vtype],
678 type_name[exprs[0]->expression.vtype]);
681 switch (exprs[0]->expression.vtype) {
683 if (CanConstFold(exprs[0], exprs[1]))
684 out = (ast_expression*)parser_const_float(parser, ConstF(0) - ConstF(1));
686 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F, exprs[0], exprs[1]);
689 if (CanConstFold(exprs[0], exprs[1]))
690 out = (ast_expression*)parser_const_vector(parser, vec3_sub(ConstV(0), ConstV(1)));
692 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V, exprs[0], exprs[1]);
695 parseerror(parser, "invalid types used in expression: cannot subtract type %s from %s",
696 type_name[exprs[1]->expression.vtype],
697 type_name[exprs[0]->expression.vtype]);
702 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype &&
703 exprs[0]->expression.vtype != TYPE_VECTOR &&
704 exprs[0]->expression.vtype != TYPE_FLOAT &&
705 exprs[1]->expression.vtype != TYPE_VECTOR &&
706 exprs[1]->expression.vtype != TYPE_FLOAT)
708 parseerror(parser, "invalid types used in expression: cannot multiply types %s and %s",
709 type_name[exprs[1]->expression.vtype],
710 type_name[exprs[0]->expression.vtype]);
713 switch (exprs[0]->expression.vtype) {
715 if (exprs[1]->expression.vtype == TYPE_VECTOR)
717 if (CanConstFold(exprs[0], exprs[1]))
718 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(1), ConstF(0)));
720 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_FV, exprs[0], exprs[1]);
724 if (CanConstFold(exprs[0], exprs[1]))
725 out = (ast_expression*)parser_const_float(parser, ConstF(0) * ConstF(1));
727 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, exprs[0], exprs[1]);
731 if (exprs[1]->expression.vtype == TYPE_FLOAT)
733 if (CanConstFold(exprs[0], exprs[1]))
734 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(0), ConstF(1)));
736 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_VF, exprs[0], exprs[1]);
740 if (CanConstFold(exprs[0], exprs[1]))
741 out = (ast_expression*)parser_const_float(parser, vec3_mulvv(ConstV(0), ConstV(1)));
743 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
747 parseerror(parser, "invalid types used in expression: cannot multiply types %s and %s",
748 type_name[exprs[1]->expression.vtype],
749 type_name[exprs[0]->expression.vtype]);
754 if (NotSameType(TYPE_FLOAT)) {
755 parseerror(parser, "invalid types used in expression: cannot divide types %s and %s",
756 type_name[exprs[0]->expression.vtype],
757 type_name[exprs[1]->expression.vtype]);
760 if (CanConstFold(exprs[0], exprs[1]))
761 out = (ast_expression*)parser_const_float(parser, ConstF(0) / ConstF(1));
763 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F, exprs[0], exprs[1]);
767 parseerror(parser, "qc does not have a modulo operator");
771 if (NotSameType(TYPE_FLOAT)) {
772 parseerror(parser, "invalid types used in expression: cannot perform bit operations between types %s and %s",
773 type_name[exprs[0]->expression.vtype],
774 type_name[exprs[1]->expression.vtype]);
777 if (CanConstFold(exprs[0], exprs[1]))
778 out = (ast_expression*)parser_const_float(parser,
779 (op->id == opid1('|') ? (float)( ((qcint)ConstF(0)) | ((qcint)ConstF(1)) ) :
780 (float)( ((qcint)ConstF(0)) & ((qcint)ConstF(1)) ) ));
782 out = (ast_expression*)ast_binary_new(ctx,
783 (op->id == opid1('|') ? INSTR_BITOR : INSTR_BITAND),
787 parseerror(parser, "TODO: bitxor");
792 case opid3('<','<','='):
793 case opid3('>','>','='):
794 parseerror(parser, "TODO: shifts");
798 generated_op += 1; /* INSTR_OR */
800 generated_op += INSTR_AND;
801 if (NotSameType(TYPE_FLOAT)) {
802 parseerror(parser, "invalid types used in expression: cannot perform logical operations between types %s and %s",
803 type_name[exprs[0]->expression.vtype],
804 type_name[exprs[1]->expression.vtype]);
805 parseerror(parser, "TODO: logical ops for arbitrary types using INSTR_NOT");
806 parseerror(parser, "TODO: optional early out");
809 if (opts_standard == COMPILER_GMQCC)
810 printf("TODO: early out logic\n");
811 if (CanConstFold(exprs[0], exprs[1]))
812 out = (ast_expression*)parser_const_float(parser,
813 (generated_op == INSTR_OR ? (ConstF(0) || ConstF(1)) : (ConstF(0) && ConstF(1))));
815 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
819 generated_op += 1; /* INSTR_GT */
821 generated_op += 1; /* INSTR_LT */
822 case opid2('>', '='):
823 generated_op += 1; /* INSTR_GE */
824 case opid2('<', '='):
825 generated_op += INSTR_LE;
826 if (NotSameType(TYPE_FLOAT)) {
827 parseerror(parser, "invalid types used in expression: cannot perform comparison between types %s and %s",
828 type_name[exprs[0]->expression.vtype],
829 type_name[exprs[1]->expression.vtype]);
832 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
834 case opid2('!', '='):
835 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) {
836 parseerror(parser, "invalid types used in expression: cannot perform comparison between types %s and %s",
837 type_name[exprs[0]->expression.vtype],
838 type_name[exprs[1]->expression.vtype]);
841 out = (ast_expression*)ast_binary_new(ctx, type_ne_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]);
843 case opid2('=', '='):
844 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) {
845 parseerror(parser, "invalid types used in expression: cannot perform comparison between types %s and %s",
846 type_name[exprs[0]->expression.vtype],
847 type_name[exprs[1]->expression.vtype]);
850 out = (ast_expression*)ast_binary_new(ctx, type_eq_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]);
854 if (ast_istype(exprs[0], ast_entfield))
855 assignop = type_storep_instr[exprs[0]->expression.vtype];
857 assignop = type_store_instr[exprs[0]->expression.vtype];
858 out = (ast_expression*)ast_store_new(ctx, assignop, exprs[0], exprs[1]);
862 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
863 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
865 parseerror(parser, "invalid types used in expression: cannot add or subtract type %s and %s",
866 type_name[exprs[0]->expression.vtype],
867 type_name[exprs[1]->expression.vtype]);
870 if (ast_istype(exprs[0], ast_entfield))
871 assignop = type_storep_instr[exprs[0]->expression.vtype];
873 assignop = type_store_instr[exprs[0]->expression.vtype];
874 switch (exprs[0]->expression.vtype) {
876 out = (ast_expression*)ast_binstore_new(ctx, assignop,
877 (op->id == opid2('+','=') ? INSTR_ADD_F : INSTR_SUB_F),
881 out = (ast_expression*)ast_binstore_new(ctx, assignop,
882 (op->id == opid2('+','=') ? INSTR_ADD_V : INSTR_SUB_V),
886 parseerror(parser, "invalid types used in expression: cannot add or subtract type %s and %s",
887 type_name[exprs[0]->expression.vtype],
888 type_name[exprs[1]->expression.vtype]);
896 parseerror(parser, "failed to apply operand %s", op->op);
900 DEBUGSHUNTDO(printf("applied %s\n", op->op));
901 sy->out[sy->out_count++] = syexp(ctx, out);
905 static bool parser_close_call(parser_t *parser, shunt *sy)
907 /* was a function call */
915 fid = sy->ops[sy->ops_count].off;
917 /* out[fid] is the function
918 * everything above is parameters...
920 * 1 params = ast_expression
924 if (sy->out_count < 1 || sy->out_count <= fid) {
925 parseerror(parser, "internal error: function call needs function and parameter list...");
929 fun = sy->out[fid].out;
931 call = ast_call_new(sy->ops[sy->ops_count].ctx, fun);
933 parseerror(parser, "out of memory");
937 if (fid+1 == sy->out_count) {
940 } else if (fid+2 == sy->out_count) {
943 params = sy->out[sy->out_count].block;
947 if (!ast_call_params_add(call, sy->out[sy->out_count].out)) {
948 ast_delete(sy->out[sy->out_count].out);
949 parseerror(parser, "out of memory");
953 paramcount = params->exprs_count;
954 MEM_VECTOR_MOVE(params, exprs, call, params);
958 parseerror(parser, "invalid function call");
962 /* overwrite fid, the function, with a call */
963 sy->out[fid] = syexp(call->expression.node.context, (ast_expression*)call);
965 if (fun->expression.vtype != TYPE_FUNCTION) {
966 parseerror(parser, "not a function (%s)", type_name[fun->expression.vtype]);
970 if (!fun->expression.next) {
971 parseerror(parser, "could not determine function return type");
974 if (fun->expression.params_count != paramcount &&
975 !(fun->expression.variadic &&
976 fun->expression.params_count < paramcount))
979 const char *fewmany = (fun->expression.params_count > paramcount) ? "few" : "many";
981 fval = (ast_istype(fun, ast_value) ? ((ast_value*)fun) : NULL);
982 if (opts_standard == COMPILER_GMQCC)
985 parseerror(parser, "too %s parameters for call to %s: expected %i, got %i", fewmany,
986 fval->name, (int)fun->expression.params_count, paramcount);
988 parseerror(parser, "too %s parameters for function call: expected %i, got %i", fewmany,
989 (int)fun->expression.params_count, paramcount);
995 return !parsewarning(parser, WARN_TOO_FEW_PARAMETERS,
996 "too %s parameters for call to %s: expected %i, got %i", fewmany,
997 fval->name, (int)fun->expression.params_count, paramcount);
999 return !parsewarning(parser, WARN_TOO_FEW_PARAMETERS,
1000 "too %s parameters for function call: expected %i, got %i", fewmany,
1001 (int)fun->expression.params_count, paramcount);
1009 static bool parser_close_paren(parser_t *parser, shunt *sy, bool functions_only)
1011 if (!sy->ops_count) {
1012 parseerror(parser, "unmatched closing paren");
1015 /* this would for bit a + (x) because there are no operators inside (x)
1016 if (sy->ops[sy->ops_count-1].paren == 1) {
1017 parseerror(parser, "empty parenthesis expression");
1021 while (sy->ops_count) {
1022 if (sy->ops[sy->ops_count-1].paren == 'f') {
1023 if (!parser_close_call(parser, sy))
1027 if (sy->ops[sy->ops_count-1].paren == 1) {
1029 return !functions_only;
1031 if (!parser_sy_pop(parser, sy))
1037 static void parser_reclassify_token(parser_t *parser)
1040 for (i = 0; i < operator_count; ++i) {
1041 if (!strcmp(parser_tokval(parser), operators[i].op)) {
1042 parser->tok = TOKEN_OPERATOR;
1048 static ast_expression* parser_expression_leave(parser_t *parser, bool stopatcomma)
1050 ast_expression *expr = NULL;
1052 bool wantop = false;
1053 bool gotmemberof = false;
1055 /* count the parens because an if starts with one, so the
1056 * end of a condition is an unmatched closing paren
1060 MEM_VECTOR_INIT(&sy, out);
1061 MEM_VECTOR_INIT(&sy, ops);
1063 parser->lex->flags.noops = false;
1065 parser_reclassify_token(parser);
1070 gotmemberof = false;
1072 parser->memberof = 0;
1074 if (parser->tok == TOKEN_IDENT)
1076 ast_expression *var;
1078 parseerror(parser, "expected operator or end of statement");
1083 if (opts_standard == COMPILER_GMQCC)
1085 if (parser->memberof == TYPE_ENTITY) {
1086 /* still get vars first since there could be a fieldpointer */
1087 var = parser_find_var(parser, parser_tokval(parser));
1089 var = parser_find_field(parser, parser_tokval(parser));
1091 else if (parser->memberof == TYPE_VECTOR)
1093 parseerror(parser, "TODO: implement effective vector member access");
1096 else if (parser->memberof) {
1097 parseerror(parser, "namespace for member not found");
1101 var = parser_find_var(parser, parser_tokval(parser));
1103 var = parser_find_var(parser, parser_tokval(parser));
1105 var = parser_find_field(parser, parser_tokval(parser));
1108 parseerror(parser, "unexpected ident: %s", parser_tokval(parser));
1111 if (ast_istype(var, ast_value))
1112 ((ast_value*)var)->uses++;
1113 if (!shunt_out_add(&sy, syexp(parser_ctx(parser), var))) {
1114 parseerror(parser, "out of memory");
1117 DEBUGSHUNTDO(printf("push %s\n", parser_tokval(parser)));
1119 else if (parser->tok == TOKEN_FLOATCONST) {
1122 parseerror(parser, "expected operator or end of statement, got constant");
1126 val = parser_const_float(parser, (parser_token(parser)->constval.f));
1129 if (!shunt_out_add(&sy, syexp(parser_ctx(parser), (ast_expression*)val))) {
1130 parseerror(parser, "out of memory");
1133 DEBUGSHUNTDO(printf("push %g\n", parser_token(parser)->constval.f));
1135 else if (parser->tok == TOKEN_INTCONST) {
1138 parseerror(parser, "expected operator or end of statement, got constant");
1142 val = parser_const_float(parser, (double)(parser_token(parser)->constval.i));
1145 if (!shunt_out_add(&sy, syexp(parser_ctx(parser), (ast_expression*)val))) {
1146 parseerror(parser, "out of memory");
1149 DEBUGSHUNTDO(printf("push %i\n", parser_token(parser)->constval.i));
1151 else if (parser->tok == TOKEN_STRINGCONST) {
1154 parseerror(parser, "expected operator or end of statement, got constant");
1158 val = parser_const_string(parser, parser_tokval(parser));
1161 if (!shunt_out_add(&sy, syexp(parser_ctx(parser), (ast_expression*)val))) {
1162 parseerror(parser, "out of memory");
1165 DEBUGSHUNTDO(printf("push string\n"));
1167 else if (parser->tok == TOKEN_VECTORCONST) {
1170 parseerror(parser, "expected operator or end of statement, got constant");
1174 val = parser_const_vector(parser, parser_token(parser)->constval.v);
1177 if (!shunt_out_add(&sy, syexp(parser_ctx(parser), (ast_expression*)val))) {
1178 parseerror(parser, "out of memory");
1181 DEBUGSHUNTDO(printf("push '%g %g %g'\n",
1182 parser_token(parser)->constval.v.x,
1183 parser_token(parser)->constval.v.y,
1184 parser_token(parser)->constval.v.z));
1186 else if (parser->tok == '(') {
1187 parseerror(parser, "internal error: '(' should be classified as operator");
1190 else if (parser->tok == ')') {
1192 DEBUGSHUNTDO(printf("do[op] )\n"));
1196 /* we do expect an operator next */
1197 /* closing an opening paren */
1198 if (!parser_close_paren(parser, &sy, false))
1201 DEBUGSHUNTDO(printf("do[nop] )\n"));
1205 /* allowed for function calls */
1206 if (!parser_close_paren(parser, &sy, true))
1211 else if (parser->tok != TOKEN_OPERATOR) {
1213 parseerror(parser, "expected operator or end of statement");
1220 /* classify the operator */
1221 /* TODO: suffix operators */
1222 const oper_info *op;
1223 const oper_info *olast = NULL;
1225 for (o = 0; o < operator_count; ++o) {
1226 if ((!(operators[o].flags & OP_PREFIX) == wantop) &&
1227 !(operators[o].flags & OP_SUFFIX) && /* remove this */
1228 !strcmp(parser_tokval(parser), operators[o].op))
1233 if (o == operator_count) {
1234 /* no operator found... must be the end of the statement */
1237 /* found an operator */
1240 /* when declaring variables, a comma starts a new variable */
1241 if (op->id == opid1(',') && !parens && stopatcomma) {
1242 /* fixup the token */
1247 if (sy.ops_count && !sy.ops[sy.ops_count-1].paren)
1248 olast = &operators[sy.ops[sy.ops_count-1].etype-1];
1251 (op->prec < olast->prec) ||
1252 (op->assoc == ASSOC_LEFT && op->prec <= olast->prec) ) )
1254 if (!parser_sy_pop(parser, &sy))
1256 if (sy.ops_count && !sy.ops[sy.ops_count-1].paren)
1257 olast = &operators[sy.ops[sy.ops_count-1].etype-1];
1262 if (op->id == opid1('.') && opts_standard == COMPILER_GMQCC) {
1263 /* for gmqcc standard: open up the namespace of the previous type */
1264 ast_expression *prevex = sy.out[sy.out_count-1].out;
1266 parseerror(parser, "unexpected member operator");
1269 if (prevex->expression.vtype == TYPE_ENTITY)
1270 parser->memberof = TYPE_ENTITY;
1271 else if (prevex->expression.vtype == TYPE_VECTOR)
1272 parser->memberof = TYPE_VECTOR;
1274 parseerror(parser, "type error: type has no members");
1280 if (op->id == opid1('(')) {
1282 DEBUGSHUNTDO(printf("push [op] (\n"));
1284 /* we expected an operator, this is the function-call operator */
1285 if (!shunt_ops_add(&sy, syparen(parser_ctx(parser), 'f', sy.out_count-1))) {
1286 parseerror(parser, "out of memory");
1291 if (!shunt_ops_add(&sy, syparen(parser_ctx(parser), 1, 0))) {
1292 parseerror(parser, "out of memory");
1295 DEBUGSHUNTDO(printf("push [nop] (\n"));
1299 DEBUGSHUNTDO(printf("push operator %s\n", op->op));
1300 if (!shunt_ops_add(&sy, syop(parser_ctx(parser), op)))
1305 if (!parser_next(parser)) {
1308 if (parser->tok == ';' || parser->tok == ']') {
1313 while (sy.ops_count) {
1314 if (!parser_sy_pop(parser, &sy))
1318 parser->lex->flags.noops = true;
1319 if (!sy.out_count) {
1320 parseerror(parser, "empty expression");
1323 expr = sy.out[0].out;
1324 MEM_VECTOR_CLEAR(&sy, out);
1325 MEM_VECTOR_CLEAR(&sy, ops);
1326 DEBUGSHUNTDO(printf("shunt done\n"));
1330 parser->lex->flags.noops = true;
1331 MEM_VECTOR_CLEAR(&sy, out);
1332 MEM_VECTOR_CLEAR(&sy, ops);
1336 static ast_expression* parser_expression(parser_t *parser, bool stopatcomma)
1338 ast_expression *e = parser_expression_leave(parser, stopatcomma);
1341 if (!parser_next(parser)) {
1348 static bool parser_parse_if(parser_t *parser, ast_block *block, ast_expression **out)
1351 ast_expression *cond, *ontrue, *onfalse = NULL;
1353 lex_ctx ctx = parser_ctx(parser);
1355 /* skip the 'if' and check for opening paren */
1356 if (!parser_next(parser) || parser->tok != '(') {
1357 parseerror(parser, "expected 'if' condition in parenthesis");
1360 /* parse into the expression */
1361 if (!parser_next(parser)) {
1362 parseerror(parser, "expected 'if' condition after opening paren");
1365 /* parse the condition */
1366 cond = parser_expression_leave(parser, false);
1370 if (parser->tok != ')') {
1371 parseerror(parser, "expected closing paren after 'if' condition");
1375 /* parse into the 'then' branch */
1376 if (!parser_next(parser)) {
1377 parseerror(parser, "expected statement for on-true branch of 'if'");
1381 ontrue = parser_parse_statement_or_block(parser);
1386 /* check for an else */
1387 if (!strcmp(parser_tokval(parser), "else")) {
1388 /* parse into the 'else' branch */
1389 if (!parser_next(parser)) {
1390 parseerror(parser, "expected on-false branch after 'else'");
1395 onfalse = parser_parse_statement_or_block(parser);
1403 ifthen = ast_ifthen_new(ctx, cond, ontrue, onfalse);
1404 *out = (ast_expression*)ifthen;
1408 static bool parser_parse_while(parser_t *parser, ast_block *block, ast_expression **out)
1411 ast_expression *cond, *ontrue;
1413 lex_ctx ctx = parser_ctx(parser);
1415 /* skip the 'while' and check for opening paren */
1416 if (!parser_next(parser) || parser->tok != '(') {
1417 parseerror(parser, "expected 'while' condition in parenthesis");
1420 /* parse into the expression */
1421 if (!parser_next(parser)) {
1422 parseerror(parser, "expected 'while' condition after opening paren");
1425 /* parse the condition */
1426 cond = parser_expression_leave(parser, false);
1430 if (parser->tok != ')') {
1431 parseerror(parser, "expected closing paren after 'while' condition");
1435 /* parse into the 'then' branch */
1436 if (!parser_next(parser)) {
1437 parseerror(parser, "expected while-loop body");
1441 ontrue = parser_parse_statement_or_block(parser);
1447 aloop = ast_loop_new(ctx, NULL, cond, NULL, NULL, ontrue);
1448 *out = (ast_expression*)aloop;
1452 static bool parser_parse_dowhile(parser_t *parser, ast_block *block, ast_expression **out)
1455 ast_expression *cond, *ontrue;
1457 lex_ctx ctx = parser_ctx(parser);
1459 /* skip the 'do' and get the body */
1460 if (!parser_next(parser)) {
1461 parseerror(parser, "expected loop body");
1464 ontrue = parser_parse_statement_or_block(parser);
1468 /* expect the "while" */
1469 if (parser->tok != TOKEN_KEYWORD ||
1470 strcmp(parser_tokval(parser), "while"))
1472 parseerror(parser, "expected 'while' and condition");
1477 /* skip the 'while' and check for opening paren */
1478 if (!parser_next(parser) || parser->tok != '(') {
1479 parseerror(parser, "expected 'while' condition in parenthesis");
1483 /* parse into the expression */
1484 if (!parser_next(parser)) {
1485 parseerror(parser, "expected 'while' condition after opening paren");
1489 /* parse the condition */
1490 cond = parser_expression_leave(parser, false);
1494 if (parser->tok != ')') {
1495 parseerror(parser, "expected closing paren after 'while' condition");
1501 if (!parser_next(parser) || parser->tok != ';') {
1502 parseerror(parser, "expected semicolon after condition");
1508 if (!parser_next(parser)) {
1509 parseerror(parser, "parse error");
1515 aloop = ast_loop_new(ctx, NULL, NULL, cond, NULL, ontrue);
1516 *out = (ast_expression*)aloop;
1520 static bool parser_parse_for(parser_t *parser, ast_block *block, ast_expression **out)
1523 ast_expression *initexpr, *cond, *increment, *ontrue;
1524 size_t oldblocklocal;
1527 lex_ctx ctx = parser_ctx(parser);
1529 oldblocklocal = parser->blocklocal;
1530 parser->blocklocal = parser->locals_count;
1537 /* skip the 'while' and check for opening paren */
1538 if (!parser_next(parser) || parser->tok != '(') {
1539 parseerror(parser, "expected 'for' expressions in parenthesis");
1542 /* parse into the expression */
1543 if (!parser_next(parser)) {
1544 parseerror(parser, "expected 'for' initializer after opening paren");
1548 if (parser->tok == TOKEN_TYPENAME) {
1549 if (opts_standard != COMPILER_GMQCC) {
1550 if (parsewarning(parser, WARN_EXTENSIONS,
1551 "current standard does not allow variable declarations in for-loop initializers"))
1555 parseerror(parser, "TODO: assignment of new variables to be non-const");
1557 if (!parser_variable(parser, block))
1560 else if (parser->tok != ';')
1562 initexpr = parser_expression_leave(parser, false);
1567 /* move on to condition */
1568 if (parser->tok != ';') {
1569 parseerror(parser, "expected semicolon after for-loop initializer");
1572 if (!parser_next(parser)) {
1573 parseerror(parser, "expected for-loop condition");
1577 /* parse the condition */
1578 if (parser->tok != ';') {
1579 cond = parser_expression_leave(parser, false);
1584 /* move on to incrementor */
1585 if (parser->tok != ';') {
1586 parseerror(parser, "expected semicolon after for-loop initializer");
1589 if (!parser_next(parser)) {
1590 parseerror(parser, "expected for-loop condition");
1594 /* parse the incrementor */
1595 if (parser->tok != ')') {
1596 increment = parser_expression_leave(parser, false);
1602 if (parser->tok != ')') {
1603 parseerror(parser, "expected closing paren after 'for-loop' incrementor");
1606 /* parse into the 'then' branch */
1607 if (!parser_next(parser)) {
1608 parseerror(parser, "expected for-loop body");
1611 ontrue = parser_parse_statement_or_block(parser);
1616 aloop = ast_loop_new(ctx, initexpr, cond, NULL, increment, ontrue);
1617 *out = (ast_expression*)aloop;
1619 while (parser->locals_count > parser->blocklocal)
1620 retval = retval && parser_pop_local(parser);
1621 parser->blocklocal = oldblocklocal;
1624 if (initexpr) ast_delete(initexpr);
1625 if (cond) ast_delete(cond);
1626 if (increment) ast_delete(increment);
1627 while (parser->locals_count > parser->blocklocal)
1628 (void)!parser_pop_local(parser);
1629 parser->blocklocal = oldblocklocal;
1633 static bool parser_parse_statement(parser_t *parser, ast_block *block, ast_expression **out)
1635 if (parser->tok == TOKEN_TYPENAME)
1637 /* local variable */
1639 parseerror(parser, "cannot declare a variable from here");
1642 if (opts_standard == COMPILER_QCC) {
1643 if (parsewarning(parser, WARN_EXTENSIONS, "missing 'local' keyword when declaring a local variable"))
1646 if (!parser_variable(parser, block))
1651 else if (parser->tok == TOKEN_KEYWORD)
1653 if (!strcmp(parser_tokval(parser), "local"))
1656 parseerror(parser, "cannot declare a local variable here");
1659 if (!parser_next(parser)) {
1660 parseerror(parser, "expected variable declaration");
1663 if (!parser_variable(parser, block))
1668 else if (!strcmp(parser_tokval(parser), "return"))
1670 ast_expression *exp = NULL;
1671 ast_return *ret = NULL;
1672 ast_value *expected = parser->function->vtype;
1674 if (!parser_next(parser)) {
1675 parseerror(parser, "expected return expression");
1679 if (parser->tok != ';') {
1680 exp = parser_expression(parser, false);
1684 if (exp->expression.vtype != expected->expression.next->expression.vtype) {
1685 parseerror(parser, "return with invalid expression");
1688 ret = ast_return_new(exp->expression.node.context, exp);
1694 if (!parser_next(parser))
1695 parseerror(parser, "parse error");
1696 if (expected->expression.next->expression.vtype != TYPE_VOID) {
1697 if (opts_standard != COMPILER_GMQCC)
1698 (void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value");
1700 parseerror(parser, "return without value");
1702 ret = ast_return_new(parser_ctx(parser), NULL);
1704 *out = (ast_expression*)ret;
1707 else if (!strcmp(parser_tokval(parser), "if"))
1709 return parser_parse_if(parser, block, out);
1711 else if (!strcmp(parser_tokval(parser), "while"))
1713 return parser_parse_while(parser, block, out);
1715 else if (!strcmp(parser_tokval(parser), "do"))
1717 return parser_parse_dowhile(parser, block, out);
1719 else if (!strcmp(parser_tokval(parser), "for"))
1721 if (opts_standard == COMPILER_QCC) {
1722 if (parsewarning(parser, WARN_EXTENSIONS, "for loops are not recognized in the original Quake C standard, to enable try an alternate standard --std=?"))
1725 return parser_parse_for(parser, block, out);
1727 parseerror(parser, "Unexpected keyword");
1730 else if (parser->tok == '{')
1733 inner = parser_parse_block(parser, false);
1736 *out = (ast_expression*)inner;
1741 ast_expression *exp = parser_expression(parser, false);
1749 static bool GMQCC_WARN parser_pop_local(parser_t *parser)
1752 parser->locals_count--;
1754 ve = &parser->locals[parser->locals_count];
1755 if (ast_istype(ve->var, ast_value) && !(((ast_value*)(ve->var))->uses)) {
1756 if (parsewarning(parser, WARN_UNUSED_VARIABLE, "unused variable: `%s`", ve->name))
1759 mem_d(parser->locals[parser->locals_count].name);
1763 static bool parser_parse_block_into(parser_t *parser, ast_block *block, bool warnreturn)
1765 size_t oldblocklocal;
1768 oldblocklocal = parser->blocklocal;
1769 parser->blocklocal = parser->locals_count;
1771 if (!parser_next(parser)) { /* skip the '{' */
1772 parseerror(parser, "expected function body");
1776 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
1778 ast_expression *expr;
1779 if (parser->tok == '}')
1782 if (!parser_parse_statement(parser, block, &expr)) {
1783 parseerror(parser, "parse error");
1789 if (!ast_block_exprs_add(block, expr)) {
1796 if (parser->tok != '}') {
1799 if (warnreturn && parser->function->vtype->expression.next->expression.vtype != TYPE_VOID)
1801 if (!block->exprs_count ||
1802 !ast_istype(block->exprs[block->exprs_count-1], ast_return))
1804 if (parsewarning(parser, WARN_MISSING_RETURN_VALUES, "control reaches end of non-void function")) {
1810 (void)parser_next(parser);
1814 while (parser->locals_count > parser->blocklocal)
1815 retval = retval && parser_pop_local(parser);
1816 parser->blocklocal = oldblocklocal;
1820 static ast_block* parser_parse_block(parser_t *parser, bool warnreturn)
1823 block = ast_block_new(parser_ctx(parser));
1826 if (!parser_parse_block_into(parser, block, warnreturn)) {
1827 ast_block_delete(block);
1833 static ast_expression* parser_parse_statement_or_block(parser_t *parser)
1835 ast_expression *expr = NULL;
1836 if (parser->tok == '{')
1837 return (ast_expression*)parser_parse_block(parser, false);
1838 if (!parser_parse_statement(parser, NULL, &expr))
1843 static bool create_vector_members(parser_t *parser, ast_value *var,
1844 varentry_t *vx, varentry_t *vy, varentry_t *vz)
1846 size_t len = strlen(var->name);
1847 vx->var = (ast_expression*)ast_member_new(ast_ctx(var), (ast_expression*)var, 0);
1849 parseerror(parser, "failed to create vector members (out of memory)");
1853 vy->var = (ast_expression*)ast_member_new(ast_ctx(var), (ast_expression*)var, 1);
1855 ast_delete(vx->var);
1856 parseerror(parser, "failed to create vector members (out of memory)");
1860 vz->var = (ast_expression*)ast_member_new(ast_ctx(var), (ast_expression*)var, 2);
1862 ast_delete(vy->var);
1863 ast_delete(vx->var);
1864 parseerror(parser, "failed to create vector members (out of memory)");
1868 if ( !(vx->name = (char*)mem_a(len+3)) ) {
1869 ast_delete(vz->var);
1870 ast_delete(vy->var);
1871 ast_delete(vx->var);
1872 parseerror(parser, "failed to create vector members (out of memory)");
1875 if ( !(vy->name = (char*)mem_a(len+3)) ) {
1877 ast_delete(vz->var);
1878 ast_delete(vy->var);
1879 ast_delete(vx->var);
1880 parseerror(parser, "failed to create vector members (out of memory)");
1883 if ( !(vz->name = (char*)mem_a(len+3)) ) {
1886 ast_delete(vz->var);
1887 ast_delete(vy->var);
1888 ast_delete(vx->var);
1889 parseerror(parser, "failed to create vector members (out of memory)");
1893 memcpy(vx->name, var->name, len);
1894 memcpy(vy->name, var->name, len);
1895 memcpy(vz->name, var->name, len);
1896 vx->name[len] = vy->name[len] = vz->name[len] = '_';
1897 vx->name[len+1] = 'x';
1898 vy->name[len+1] = 'y';
1899 vz->name[len+1] = 'z';
1900 vx->name[len+2] = vy->name[len+2] = vz->name[len+2] = 0;
1904 static bool parser_variable(parser_t *parser, ast_block *localblock)
1906 bool isfunc = false;
1910 ast_expression *olddecl;
1919 int basetype = parser_token(parser)->constval.t;
1921 if (!parser_next(parser)) {
1922 parseerror(parser, "expected variable definition");
1926 typevar = parser_parse_type(parser, basetype, &isfunc);
1936 ctx = parser_ctx(parser);
1937 var = ast_value_copy(typevar);
1940 ast_delete(typevar);
1941 parseerror(parser, "failed to create variable");
1945 if (parser->tok != TOKEN_IDENT) {
1946 parseerror(parser, "expected variable name");
1947 ast_value_delete(typevar);
1948 ast_value_delete(var);
1953 if (!localblock && (olddecl = parser_find_global(parser, parser_tokval(parser)))) {
1954 ast_value_delete(typevar);
1955 ast_value_delete(var);
1956 parseerror(parser, "global `%s` already declared here: %s:%i",
1957 parser_tokval(parser), ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
1962 olddecl = parser_find_local(parser, parser_tokval(parser), parser->blocklocal, &isparam);
1963 if (opts_standard == COMPILER_GMQCC)
1968 ast_value_delete(typevar);
1969 ast_value_delete(var);
1970 parseerror(parser, "local `%s` already declared here: %s:%i",
1971 parser_tokval(parser), ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
1976 if( (!isparam && olddecl) || (olddecl = parser_find_local(parser, parser_tokval(parser), 0, &isparam)) )
1978 if (parsewarning(parser, WARN_LOCAL_SHADOWS,
1979 "local `%s` is shadowing a parameter", parser_tokval(parser)))
1981 ast_value_delete(typevar);
1982 ast_value_delete(var);
1983 parseerror(parser, "local `%s` already declared here: %s:%i",
1984 parser_tokval(parser), ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
1993 ast_value_delete(var);
1995 parsewarning(parser, WARN_LOCAL_SHADOWS,
1996 "a parameter is shadowing local `%s`", parser_tokval(parser)))
1998 ast_value_delete(typevar);
1999 ast_value_delete(var);
2004 parseerror(parser, "local `%s` already declared here: %s:%i",
2005 parser_tokval(parser), ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
2006 ast_value_delete(typevar);
2007 ast_value_delete(var);
2016 if (!ast_value_set_name(var, parser_tokval(parser))) {
2017 parseerror(parser, "failed to set variable name\n");
2018 ast_value_delete(typevar);
2019 ast_value_delete(var);
2024 /* a function was defined */
2026 ast_value *proto = NULL;
2030 olddecl = parser_find_global(parser, parser_tokval(parser));
2032 olddecl = parser_find_local(parser, parser_tokval(parser), parser->blocklocal, &dummy);
2035 /* we had a prototype */
2036 if (!ast_istype(olddecl, ast_value)) {
2037 /* theoretically not possible you think?
2043 parseerror(parser, "cannot declare a function with the same name as a vector's member: %s",
2044 parser_tokval(parser));
2045 ast_value_delete(var);
2049 proto = (ast_value*)olddecl;
2052 /* turn var into a value of TYPE_FUNCTION, with the old var
2055 fval = ast_value_new(ctx, var->name, TYPE_FUNCTION);
2057 ast_value_delete(var);
2058 ast_value_delete(typevar);
2059 if (fval) ast_value_delete(fval);
2063 fval->expression.next = (ast_expression*)var;
2064 MEM_VECTOR_MOVE(&var->expression, params, &fval->expression, params);
2065 fval->expression.variadic = var->expression.variadic;
2067 /* we compare the type late here, but it's easier than
2068 * messing with the parameter-vector etc. earlier
2072 if (!ast_compare_type((ast_expression*)proto, (ast_expression*)fval)) {
2073 parseerror(parser, "conflicting types for `%s`, previous declaration was here: %s:%i",
2075 ast_ctx(proto).file, ast_ctx(proto).line);
2076 ast_value_delete(fval);
2077 ast_value_delete(typevar);
2080 /* copy over the parameter names */
2081 for (param = 0; param < fval->expression.params_count; ++param)
2082 ast_value_set_name(proto->expression.params[param], fval->expression.params[param]->name);
2083 /* copy the new context */
2084 ast_ctx(proto) = ast_ctx(fval);
2086 /* now ditch the rest of the new data */
2087 ast_value_delete(fval);
2096 varent.name = util_strdup(var->name);
2097 varent.var = (ast_expression*)var;
2098 if (var->expression.vtype == TYPE_VECTOR)
2100 varentry_t vx, vy, vz;
2101 if (!create_vector_members(parser, var, &vx, &vy, &vz)) {
2103 ast_value_delete(typevar);
2108 (void)!parser_t_globals_add(parser, varent);
2109 (void)!parser_t_globals_add(parser, vx);
2110 (void)!parser_t_globals_add(parser, vy);
2111 (void)!parser_t_globals_add(parser, vz);
2113 (void)!parser_t_locals_add(parser, varent);
2114 (void)!parser_t_locals_add(parser, vx);
2115 (void)!parser_t_locals_add(parser, vy);
2116 (void)!parser_t_locals_add(parser, vz);
2117 if (!ast_block_locals_add(localblock, var) ||
2118 !ast_block_collect(localblock, vx.var) ||
2119 !ast_block_collect(localblock, vy.var) ||
2120 !ast_block_collect(localblock, vz.var))
2122 (void)!parser_pop_local(parser);
2123 (void)!parser_pop_local(parser);
2124 (void)!parser_pop_local(parser);
2125 (void)!parser_pop_local(parser);
2126 ast_value_delete(var);
2127 ast_value_delete(typevar);
2134 if ( (!localblock && !parser_t_globals_add(parser, varent)) ||
2135 ( localblock && !parser_t_locals_add(parser, varent)) )
2137 ast_value_delete(var);
2138 ast_value_delete(typevar);
2141 if (localblock && !ast_block_locals_add(localblock, var))
2143 (void)!parser_pop_local(parser);
2144 ast_value_delete(var);
2145 ast_value_delete(typevar);
2152 if (!parser_next(parser)) {
2153 ast_value_delete(typevar);
2154 ast_value_delete(var);
2158 if (parser->tok == ';') {
2159 ast_value_delete(typevar);
2160 if (!parser_next(parser))
2165 if (parser->tok == ',') {
2167 if (!parser_next(parser)) {
2168 ast_delete(typevar);
2174 if (localblock && opts_standard == COMPILER_QCC) {
2175 if (parsewarning(parser, WARN_LOCAL_CONSTANTS,
2176 "initializing expression turns variable `%s` into a constant in this standard",
2179 ast_value_delete(typevar);
2184 if (parser->tok != '=') {
2185 ast_value_delete(typevar);
2186 parseerror(parser, "expected '=' or ';'");
2190 if (!parser_next(parser)) {
2191 ast_value_delete(typevar);
2195 if (parser->tok == '#') {
2199 parseerror(parser, "cannot declare builtins within functions");
2200 ast_value_delete(typevar);
2204 parseerror(parser, "unexpected builtin number, '%s' is not a function", var->name);
2205 ast_value_delete(typevar);
2208 if (!parser_next(parser)) {
2209 parseerror(parser, "expected builtin number");
2210 ast_value_delete(typevar);
2213 if (parser->tok != TOKEN_INTCONST) {
2214 parseerror(parser, "builtin number must be an integer constant");
2215 ast_value_delete(typevar);
2218 if (parser_token(parser)->constval.i <= 0) {
2219 parseerror(parser, "builtin number must be positive integer greater than zero");
2220 ast_value_delete(typevar);
2224 func = ast_function_new(ast_ctx(var), var->name, var);
2226 parseerror(parser, "failed to allocate function for `%s`", var->name);
2227 ast_value_delete(typevar);
2230 if (!parser_t_functions_add(parser, func)) {
2231 parseerror(parser, "failed to allocate slot for function `%s`", var->name);
2232 ast_function_delete(func);
2233 var->constval.vfunc = NULL;
2234 ast_value_delete(typevar);
2238 func->builtin = -parser_token(parser)->constval.i;
2240 if (!parser_next(parser)) {
2241 ast_value_delete(typevar);
2244 } else if (parser->tok == '{' || parser->tok == '[') {
2251 ast_expression *fld_think, *fld_nextthink, *fld_frame;
2252 ast_expression *gbl_time, *gbl_self;
2253 ast_expression *framenum, *nextthink;
2254 bool has_frame_think;
2256 has_frame_think = false;
2257 old = parser->function;
2259 if (var->expression.variadic) {
2260 if (parsewarning(parser, WARN_VARIADIC_FUNCTION,
2261 "variadic function with implementation will not be able to access additional parameters"))
2263 ast_value_delete(typevar);
2269 parseerror(parser, "cannot declare functions within functions");
2270 ast_value_delete(typevar);
2274 if (parser->tok == '[') {
2275 /* got a frame definition: [ framenum, nextthink ]
2276 * this translates to:
2277 * self.frame = framenum;
2278 * self.nextthink = time + 0.1;
2279 * self.think = nextthink;
2283 fld_think = parser_find_field(parser, "think");
2284 fld_nextthink = parser_find_field(parser, "nextthink");
2285 fld_frame = parser_find_field(parser, "frame");
2286 if (!fld_think || !fld_nextthink || !fld_frame) {
2287 parseerror(parser, "cannot use [frame,think] notation without the required fields");
2288 parseerror(parser, "please declare the following entityfields: `frame`, `think`, `nextthink`");
2289 ast_value_delete(typevar);
2292 gbl_time = parser_find_global(parser, "time");
2293 gbl_self = parser_find_global(parser, "self");
2294 if (!gbl_time || !gbl_self) {
2295 parseerror(parser, "cannot use [frame,think] notation without the required globals");
2296 parseerror(parser, "please declare the following globals: `time`, `self`");
2297 ast_value_delete(typevar);
2301 if (!parser_next(parser)) {
2302 ast_value_delete(typevar);
2306 framenum = parser_expression_leave(parser, true);
2308 parseerror(parser, "expected a framenumber constant in[frame,think] notation");
2309 ast_value_delete(typevar);
2312 if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->isconst) {
2313 ast_unref(framenum);
2314 parseerror(parser, "framenumber in [frame,think] notation must be a constant");
2317 if (parser->tok != ',') {
2318 ast_unref(framenum);
2319 parseerror(parser, "expected comma after frame number in [frame,think] notation");
2320 parseerror(parser, "Got a %i\n", parser->tok);
2321 ast_value_delete(typevar);
2325 if (!parser_next(parser)) {
2326 ast_unref(framenum);
2327 ast_value_delete(typevar);
2331 if (parser->tok == TOKEN_IDENT && !parser_find_var(parser, parser_tokval(parser)))
2333 /* qc allows the use of not-yet-declared functions here
2334 * - this automatically creates a prototype */
2336 ast_value *thinkfunc;
2337 ast_expression *functype = fld_think->expression.next;
2339 thinkfunc = ast_value_new(parser_ctx(parser), parser_tokval(parser), functype->expression.vtype);
2340 if (!thinkfunc || !ast_type_adopt(thinkfunc, functype)) {
2341 ast_unref(framenum);
2342 parseerror(parser, "failed to create implicit prototype for `%s`", parser_tokval(parser));
2343 ast_value_delete(typevar);
2347 if (!parser_next(parser)) {
2348 ast_unref(framenum);
2349 ast_value_delete(typevar);
2353 varent.var = (ast_expression*)thinkfunc;
2354 varent.name = util_strdup(thinkfunc->name);
2355 (void)!parser_t_globals_add(parser, varent);
2356 nextthink = (ast_expression*)thinkfunc;
2359 nextthink = parser_expression_leave(parser, true);
2361 ast_unref(framenum);
2362 parseerror(parser, "expected a think-function in [frame,think] notation");
2363 ast_value_delete(typevar);
2368 if (!ast_istype(nextthink, ast_value)) {
2369 ast_unref(nextthink);
2370 ast_unref(framenum);
2371 parseerror(parser, "think-function in [frame,think] notation must be a constant");
2374 if (parser->tok != ']') {
2375 parseerror(parser, "expected closing `]` for [frame,think] notation");
2376 ast_unref(nextthink);
2377 ast_unref(framenum);
2378 ast_value_delete(typevar);
2382 if (!parser_next(parser)) {
2383 ast_unref(nextthink);
2384 ast_unref(framenum);
2385 ast_value_delete(typevar);
2389 if (parser->tok != '{') {
2390 parseerror(parser, "a function body has to be declared after a [frame,think] declaration");
2391 ast_unref(nextthink);
2392 ast_unref(framenum);
2393 ast_value_delete(typevar);
2397 has_frame_think = true;
2400 block = ast_block_new(parser_ctx(parser));
2402 parseerror(parser, "failed to allocate block");
2403 ast_value_delete(typevar);
2407 if (has_frame_think) {
2409 ast_expression *self_frame;
2410 ast_expression *self_nextthink;
2411 ast_expression *self_think;
2412 ast_expression *time_plus_1;
2413 ast_store *store_frame;
2414 ast_store *store_nextthink;
2415 ast_store *store_think;
2417 ctx = parser_ctx(parser);
2418 self_frame = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_frame);
2419 self_nextthink = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_nextthink);
2420 self_think = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_think);
2422 time_plus_1 = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F,
2423 gbl_time, (ast_expression*)parser_const_float(parser, 0.1));
2425 store_frame = ast_store_new(ctx, INSTR_STOREP_F, self_frame, framenum);
2426 store_nextthink = ast_store_new(ctx, INSTR_STOREP_F, self_nextthink, time_plus_1);
2427 store_think = ast_store_new(ctx, INSTR_STOREP_FNC, self_think, nextthink);
2429 if (!ast_block_exprs_add(block, (ast_expression*)store_frame) ||
2430 !ast_block_exprs_add(block, (ast_expression*)store_nextthink) ||
2431 !ast_block_exprs_add(block, (ast_expression*)store_think) )
2433 parseerror(parser, "failed to generate code for [frame,think]");
2434 ast_block_delete(block);
2435 ast_value_delete(typevar);
2440 for (parami = 0; parami < var->expression.params_count; ++parami) {
2441 ast_value *param = var->expression.params[parami];
2442 varentry_t vx, vy, vz;
2444 if (param->expression.vtype != TYPE_VECTOR &&
2445 (param->expression.vtype != TYPE_FIELD ||
2446 param->expression.next->expression.vtype != TYPE_VECTOR))
2451 if (!create_vector_members(parser, param, &vx, &vy, &vz)) {
2452 ast_block_delete(block);
2453 ast_value_delete(typevar);
2457 (void)!parser_t_locals_add(parser, vx);
2458 (void)!parser_t_locals_add(parser, vy);
2459 (void)!parser_t_locals_add(parser, vz);
2460 if (!ast_block_collect(block, vx.var) ||
2461 !ast_block_collect(block, vy.var) ||
2462 !ast_block_collect(block, vz.var) )
2464 (void)!parser_pop_local(parser);
2465 (void)!parser_pop_local(parser);
2466 (void)!parser_pop_local(parser);
2467 ast_block_delete(block);
2468 ast_value_delete(typevar);
2473 func = ast_function_new(ast_ctx(var), var->name, var);
2475 parseerror(parser, "failed to allocate function for `%s`", var->name);
2476 ast_block_delete(block);
2477 parser->function = old;
2478 ast_value_delete(typevar);
2481 if (!parser_t_functions_add(parser, func)) {
2482 parseerror(parser, "failed to allocate slot for function `%s`", var->name);
2483 ast_function_delete(func);
2484 var->constval.vfunc = NULL;
2485 ast_value_delete(typevar);
2486 ast_block_delete(block);
2487 parser->function = old;
2491 parser->function = func;
2492 if (!parser_parse_block_into(parser, block, true)) {
2493 ast_block_delete(block);
2494 parser->function = old;
2495 ast_value_delete(typevar);
2498 parser->function = old;
2499 while (parser->locals_count)
2500 retval = retval && parser_pop_local(parser);
2503 ast_value_delete(typevar);
2507 if (!ast_function_blocks_add(func, block)) {
2508 ast_block_delete(block);
2509 ast_value_delete(typevar);
2513 if (parser->tok == ';') {
2514 ast_value_delete(typevar);
2515 return parser_next(parser) || parser->tok == TOKEN_EOF;
2517 else if (opts_standard == COMPILER_QCC)
2518 parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)");
2519 ast_value_delete(typevar);
2522 ast_expression *cexp;
2525 cexp = parser_expression_leave(parser, true);
2527 ast_value_delete(typevar);
2531 cval = (ast_value*)cexp;
2532 if (!ast_istype(cval, ast_value) || !cval->isconst)
2533 parseerror(parser, "cannot initialize a global constant variable with a non-constant expression");
2536 var->isconst = true;
2537 if (cval->expression.vtype == TYPE_STRING)
2538 var->constval.vstring = parser_strdup(cval->constval.vstring);
2540 memcpy(&var->constval, &cval->constval, sizeof(var->constval));
2545 if (parser->tok == ',') {
2550 if (parser->tok != ';') {
2551 parseerror(parser, "missing semicolon");
2552 ast_value_delete(typevar);
2556 (void)parser_next(parser);
2558 ast_value_delete(typevar);
2563 static bool parser_do(parser_t *parser)
2565 if (parser->tok == TOKEN_TYPENAME)
2567 return parser_variable(parser, NULL);
2569 else if (parser->tok == TOKEN_KEYWORD)
2571 /* handle 'var' and 'const' */
2574 else if (parser->tok == '.')
2579 ast_expression *oldex;
2580 bool isfunc = false;
2582 lex_ctx ctx = parser_ctx(parser);
2585 /* entity-member declaration */
2586 if (!parser_next(parser) || parser->tok != TOKEN_TYPENAME) {
2587 parseerror(parser, "expected member variable definition");
2591 /* remember the base/return type */
2592 basetype = parser_token(parser)->constval.t;
2594 /* parse into the declaration */
2595 if (!parser_next(parser)) {
2596 parseerror(parser, "expected field definition");
2600 /* parse the field type fully */
2601 typevar = var = parser_parse_type(parser, basetype, &isfunc);
2606 var = ast_value_copy(typevar);
2607 /* now the field name */
2608 if (parser->tok != TOKEN_IDENT) {
2609 parseerror(parser, "expected field name");
2614 /* check for an existing field
2615 * in original qc we also have to check for an existing
2616 * global named like the field
2618 if (opts_standard == COMPILER_QCC) {
2619 if (parser_find_global(parser, parser_tokval(parser))) {
2620 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
2628 fval = ast_value_new(ctx, var->name, TYPE_FUNCTION);
2630 ast_value_delete(var);
2633 fval->expression.next = (ast_expression*)var;
2634 MEM_VECTOR_MOVE(&var->expression, params, &fval->expression, params);
2635 fval->expression.variadic = var->expression.variadic;
2639 /* turn it into a field */
2640 fld = ast_value_new(ctx, parser_tokval(parser), TYPE_FIELD);
2641 fld->expression.next = (ast_expression*)var;
2643 if ( (oldex = parser_find_field(parser, parser_tokval(parser)))) {
2644 if (ast_istype(oldex, ast_member)) {
2645 parseerror(parser, "cannot declare a field with the same name as a vector component, component %s has been declared here: %s:%i",
2646 parser_tokval(parser), ast_ctx(oldex).file, (int)ast_ctx(oldex).line);
2650 if (!ast_istype(oldex, ast_value)) {
2651 /* not possible / sanity check */
2652 parseerror(parser, "internal error: %s is not an ast_value", parser_tokval(parser));
2657 if (!ast_compare_type(oldex, (ast_expression*)fld)) {
2658 parseerror(parser, "field %s has previously been declared with a different type here: %s:%i",
2659 parser_tokval(parser), ast_ctx(oldex).file, (int)ast_ctx(oldex).line);
2663 if (parsewarning(parser, WARN_FIELD_REDECLARED, "field `%s` has already been declared here: %s:%i",
2664 parser_tokval(parser), ast_ctx(oldex).file, (int)ast_ctx(oldex).line))
2675 varent.var = (ast_expression*)fld;
2676 varent.name = util_strdup(fld->name);
2677 (void)!parser_t_fields_add(parser, varent);
2679 if (var->expression.vtype == TYPE_VECTOR)
2681 /* create _x, _y and _z fields as well */
2682 varentry_t vx, vy, vz;
2683 if (!create_vector_members(parser, fld, &vx, &vy, &vz)) {
2687 (void)!parser_t_fields_add(parser, vx);
2688 (void)!parser_t_fields_add(parser, vy);
2689 (void)!parser_t_fields_add(parser, vz);
2693 if (!parser_next(parser)) {
2694 parseerror(parser, "expected semicolon or another field name");
2697 if (parser->tok == ';')
2699 if (parser->tok != ',' || !parser_next(parser)) {
2700 parseerror(parser, "expected semicolon or another field name");
2704 ast_delete(typevar);
2706 /* skip the semicolon */
2707 if (!parser_next(parser))
2708 return parser->tok == TOKEN_EOF;
2712 else if (parser->tok == '$')
2714 if (!parser_next(parser)) {
2715 parseerror(parser, "parse error");
2721 parseerror(parser, "unexpected token: %s", parser->lex->tok->value);
2727 static parser_t *parser;
2731 parser = (parser_t*)mem_a(sizeof(parser_t));
2735 memset(parser, 0, sizeof(*parser));
2739 bool parser_compile(const char *filename)
2741 parser->lex = lex_open(filename);
2743 printf("failed to open file \"%s\"\n", filename);
2747 /* initial lexer/parser state */
2748 parser->lex->flags.noops = true;
2750 if (parser_next(parser))
2752 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
2754 if (!parser_do(parser)) {
2755 if (parser->tok == TOKEN_EOF)
2756 parseerror(parser, "unexpected eof");
2757 else if (!parser->errors)
2758 parseerror(parser, "parse error");
2759 lex_close(parser->lex);
2765 parseerror(parser, "parse error");
2766 lex_close(parser->lex);
2771 lex_close(parser->lex);
2774 return !parser->errors;
2777 void parser_cleanup()
2780 for (i = 0; i < parser->functions_count; ++i) {
2781 ast_delete(parser->functions[i]);
2783 for (i = 0; i < parser->imm_vector_count; ++i) {
2784 ast_delete(parser->imm_vector[i]);
2786 for (i = 0; i < parser->imm_string_count; ++i) {
2787 ast_delete(parser->imm_string[i]);
2789 for (i = 0; i < parser->imm_float_count; ++i) {
2790 ast_delete(parser->imm_float[i]);
2792 for (i = 0; i < parser->fields_count; ++i) {
2793 ast_delete(parser->fields[i].var);
2794 mem_d(parser->fields[i].name);
2796 for (i = 0; i < parser->globals_count; ++i) {
2797 ast_delete(parser->globals[i].var);
2798 mem_d(parser->globals[i].name);
2800 MEM_VECTOR_CLEAR(parser, functions);
2801 MEM_VECTOR_CLEAR(parser, imm_vector);
2802 MEM_VECTOR_CLEAR(parser, imm_string);
2803 MEM_VECTOR_CLEAR(parser, imm_float);
2804 MEM_VECTOR_CLEAR(parser, globals);
2805 MEM_VECTOR_CLEAR(parser, fields);
2806 MEM_VECTOR_CLEAR(parser, locals);
2811 bool parser_finish(const char *output)
2816 if (!parser->errors)
2818 ir = ir_builder_new("gmqcc_out");
2820 printf("failed to allocate builder\n");
2824 for (i = 0; i < parser->fields_count; ++i) {
2827 if (!ast_istype(parser->fields[i].var, ast_value))
2829 field = (ast_value*)parser->fields[i].var;
2830 isconst = field->isconst;
2831 field->isconst = false;
2832 if (!ast_global_codegen((ast_value*)field, ir)) {
2833 printf("failed to generate field %s\n", field->name);
2834 ir_builder_delete(ir);
2839 ast_expression *subtype;
2840 field->isconst = true;
2841 subtype = field->expression.next;
2842 ifld = ir_builder_create_field(ir, field->name, subtype->expression.vtype);
2843 if (subtype->expression.vtype == TYPE_FIELD)
2844 ifld->fieldtype = subtype->expression.next->expression.vtype;
2845 else if (subtype->expression.vtype == TYPE_FUNCTION)
2846 ifld->outtype = subtype->expression.next->expression.vtype;
2847 (void)!ir_value_set_field(field->ir_v, ifld);
2850 for (i = 0; i < parser->globals_count; ++i) {
2851 if (!ast_istype(parser->globals[i].var, ast_value))
2853 if (!ast_global_codegen((ast_value*)(parser->globals[i].var), ir)) {
2854 printf("failed to generate global %s\n", parser->globals[i].name);
2855 ir_builder_delete(ir);
2859 for (i = 0; i < parser->imm_float_count; ++i) {
2860 if (!ast_global_codegen(parser->imm_float[i], ir)) {
2861 printf("failed to generate global %s\n", parser->imm_float[i]->name);
2862 ir_builder_delete(ir);
2866 for (i = 0; i < parser->imm_string_count; ++i) {
2867 if (!ast_global_codegen(parser->imm_string[i], ir)) {
2868 printf("failed to generate global %s\n", parser->imm_string[i]->name);
2869 ir_builder_delete(ir);
2873 for (i = 0; i < parser->imm_vector_count; ++i) {
2874 if (!ast_global_codegen(parser->imm_vector[i], ir)) {
2875 printf("failed to generate global %s\n", parser->imm_vector[i]->name);
2876 ir_builder_delete(ir);
2880 for (i = 0; i < parser->functions_count; ++i) {
2881 if (!ast_function_codegen(parser->functions[i], ir)) {
2882 printf("failed to generate function %s\n", parser->functions[i]->name);
2883 ir_builder_delete(ir);
2886 if (!ir_function_finalize(parser->functions[i]->ir_func)) {
2887 printf("failed to finalize function %s\n", parser->functions[i]->name);
2888 ir_builder_delete(ir);
2894 ir_builder_dump(ir, printf);
2896 if (!ir_builder_generate(ir, output)) {
2897 printf("*** failed to generate output file\n");
2898 ir_builder_delete(ir);
2902 ir_builder_delete(ir);
2906 printf("*** there were compile errors\n");