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 void 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;
310 MEM_VECTOR_INIT(¶ms, p);
314 if (parser->tok == '(') {
319 bool isfield = false;
320 bool isfuncparam = false;
322 if (!parser_next(parser))
325 if (parser->tok == ')')
328 if (parser->tok == '.') {
330 if (!parser_next(parser)) {
331 parseerror(parser, "expected field parameter type");
336 temptype = parser_token(parser)->constval.t;
337 if (!parser_next(parser))
340 param = parser_parse_type(parser, temptype, &isfuncparam);
345 if (parser->tok == TOKEN_IDENT) {
346 /* named parameter */
347 if (!ast_value_set_name(param, parser_tokval(parser)))
349 if (!parser_next(parser))
353 /* This comes before the isfield part! */
355 ast_value *fval = ast_value_new(ast_ctx(param), param->name, TYPE_FUNCTION);
360 fval->expression.next = (ast_expression*)param;
361 MEM_VECTOR_MOVE(¶m->expression, params, &fval->expression, params);
366 fld = ast_value_new(ctx, param->name, TYPE_FIELD);
367 fld->expression.next = (ast_expression*)param;
371 if (!paramlist_t_p_add(¶ms, param)) {
372 parseerror(parser, "Out of memory while parsing typename");
376 if (parser->tok == ',')
378 if (parser->tok == ')')
380 parseerror(parser, "Unexpected token");
383 if (!parser_next(parser))
387 var = ast_value_new(ctx, "<unnamed>", vtype);
390 MEM_VECTOR_MOVE(¶ms, p, &var->expression, params);
393 for (i = 0; i < params.p_count; ++i)
394 ast_value_delete(params.p[i]);
395 MEM_VECTOR_CLEAR(¶ms, p);
401 size_t etype; /* 0 = expression, others are operators */
405 ast_block *block; /* for commas and function calls */
410 MEM_VECTOR_MAKE(sy_elem, out);
411 MEM_VECTOR_MAKE(sy_elem, ops);
413 MEM_VEC_FUNCTIONS(shunt, sy_elem, out)
414 MEM_VEC_FUNCTIONS(shunt, sy_elem, ops)
416 static sy_elem syexp(lex_ctx ctx, ast_expression *v) {
426 static sy_elem syblock(lex_ctx ctx, ast_block *v) {
429 e.out = (ast_expression*)v;
436 static sy_elem syop(lex_ctx ctx, const oper_info *op) {
438 e.etype = 1 + (op - operators);
446 static sy_elem syparen(lex_ctx ctx, int p, size_t off) {
458 # define DEBUGSHUNTDO(x) x
460 # define DEBUGSHUNTDO(x)
463 static bool parser_sy_pop(parser_t *parser, shunt *sy)
467 ast_expression *out = NULL;
468 ast_expression *exprs[3];
469 ast_block *blocks[3];
470 ast_value *asvalue[3];
472 qcint generated_op = 0;
474 if (!sy->ops_count) {
475 parseerror(parser, "internal error: missing operator");
479 if (sy->ops[sy->ops_count-1].paren) {
480 parseerror(parser, "unmatched parenthesis");
484 op = &operators[sy->ops[sy->ops_count-1].etype - 1];
485 ctx = sy->ops[sy->ops_count-1].ctx;
487 DEBUGSHUNTDO(printf("apply %s\n", op->op));
489 if (sy->out_count < op->operands) {
490 parseerror(parser, "internal error: not enough operands: %i (operator %s (%i))", sy->out_count,
491 op->op, (int)op->id);
497 sy->out_count -= op->operands;
498 for (i = 0; i < op->operands; ++i) {
499 exprs[i] = sy->out[sy->out_count+i].out;
500 blocks[i] = sy->out[sy->out_count+i].block;
501 asvalue[i] = (ast_value*)exprs[i];
504 if (blocks[0] && !blocks[0]->exprs_count && op->id != opid1(',')) {
505 parseerror(parser, "internal error: operator cannot be applied on empty blocks");
509 #define NotSameType(T) \
510 (exprs[0]->expression.vtype != exprs[1]->expression.vtype || \
511 exprs[0]->expression.vtype != T)
512 #define CanConstFold1(A) \
513 (ast_istype((A), ast_value) && ((ast_value*)(A))->isconst)
514 #define CanConstFold(A, B) \
515 (CanConstFold1(A) && CanConstFold1(B))
516 #define ConstV(i) (asvalue[(i)]->constval.vvec)
517 #define ConstF(i) (asvalue[(i)]->constval.vfloat)
518 #define ConstS(i) (asvalue[(i)]->constval.vstring)
522 parseerror(parser, "internal error: unhandled operator: %s (%i)", op->op, (int)op->id);
526 if (exprs[0]->expression.vtype == TYPE_ENTITY) {
527 if (exprs[1]->expression.vtype != TYPE_FIELD) {
528 parseerror(parser, "type error: right hand of member-operand should be an entity-field");
531 out = (ast_expression*)ast_entfield_new(ctx, exprs[0], exprs[1]);
533 else if (exprs[0]->expression.vtype == TYPE_VECTOR) {
534 parseerror(parser, "internal error: vector access is not supposed to be handled at this point");
538 parseerror(parser, "type error: member-of operator on something that is not an entity or vector");
545 if (!ast_block_exprs_add(blocks[0], exprs[1]))
548 blocks[0] = ast_block_new(ctx);
549 if (!ast_block_exprs_add(blocks[0], exprs[0]) ||
550 !ast_block_exprs_add(blocks[0], exprs[1]))
555 if (!ast_block_set_type(blocks[0], exprs[1]))
558 sy->out[sy->out_count++] = syblock(ctx, blocks[0]);
562 switch (exprs[0]->expression.vtype) {
564 if (CanConstFold1(exprs[0]))
565 out = (ast_expression*)parser_const_float(parser, -ConstF(0));
567 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F,
568 (ast_expression*)parser_const_float_0(parser),
572 if (CanConstFold1(exprs[0]))
573 out = (ast_expression*)parser_const_vector_f(parser,
574 -ConstV(0).x, -ConstV(0).y, -ConstV(0).z);
576 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V,
577 (ast_expression*)parser_const_vector_0(parser),
581 parseerror(parser, "invalid types used in expression: cannot negate type %s",
582 type_name[exprs[0]->expression.vtype]);
588 switch (exprs[0]->expression.vtype) {
590 if (CanConstFold1(exprs[0]))
591 out = (ast_expression*)parser_const_float(parser, !ConstF(0));
593 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
596 if (CanConstFold1(exprs[0]))
597 out = (ast_expression*)parser_const_float(parser,
598 (!ConstV(0).x && !ConstV(0).y && !ConstV(0).z));
600 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[0]);
603 if (CanConstFold1(exprs[0]))
604 out = (ast_expression*)parser_const_float(parser, !ConstS(0) || !*ConstS(0));
606 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[0]);
608 /* we don't constant-fold NOT for these types */
610 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_ENT, exprs[0]);
613 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_FNC, exprs[0]);
616 parseerror(parser, "invalid types used in expression: cannot logically negate type %s",
617 type_name[exprs[0]->expression.vtype]);
623 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
624 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
626 parseerror(parser, "invalid types used in expression: cannot add type %s and %s",
627 type_name[exprs[0]->expression.vtype],
628 type_name[exprs[1]->expression.vtype]);
631 switch (exprs[0]->expression.vtype) {
633 if (CanConstFold(exprs[0], exprs[1]))
635 out = (ast_expression*)parser_const_float(parser, ConstF(0) + ConstF(1));
638 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F, exprs[0], exprs[1]);
641 if (CanConstFold(exprs[0], exprs[1]))
642 out = (ast_expression*)parser_const_vector(parser, vec3_add(ConstV(0), ConstV(1)));
644 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_V, exprs[0], exprs[1]);
647 parseerror(parser, "invalid types used in expression: cannot add type %s and %s",
648 type_name[exprs[0]->expression.vtype],
649 type_name[exprs[1]->expression.vtype]);
654 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
655 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
657 parseerror(parser, "invalid types used in expression: cannot subtract type %s from %s",
658 type_name[exprs[1]->expression.vtype],
659 type_name[exprs[0]->expression.vtype]);
662 switch (exprs[0]->expression.vtype) {
664 if (CanConstFold(exprs[0], exprs[1]))
665 out = (ast_expression*)parser_const_float(parser, ConstF(0) - ConstF(1));
667 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F, exprs[0], exprs[1]);
670 if (CanConstFold(exprs[0], exprs[1]))
671 out = (ast_expression*)parser_const_vector(parser, vec3_sub(ConstV(0), ConstV(1)));
673 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V, exprs[0], exprs[1]);
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]);
683 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype &&
684 exprs[0]->expression.vtype != TYPE_VECTOR &&
685 exprs[0]->expression.vtype != TYPE_FLOAT &&
686 exprs[1]->expression.vtype != TYPE_VECTOR &&
687 exprs[1]->expression.vtype != TYPE_FLOAT)
689 parseerror(parser, "invalid types used in expression: cannot multiply types %s and %s",
690 type_name[exprs[1]->expression.vtype],
691 type_name[exprs[0]->expression.vtype]);
694 switch (exprs[0]->expression.vtype) {
696 if (exprs[1]->expression.vtype == TYPE_VECTOR)
698 if (CanConstFold(exprs[0], exprs[1]))
699 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(1), ConstF(0)));
701 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_FV, exprs[0], exprs[1]);
705 if (CanConstFold(exprs[0], exprs[1]))
706 out = (ast_expression*)parser_const_float(parser, ConstF(0) * ConstF(1));
708 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, exprs[0], exprs[1]);
712 if (exprs[1]->expression.vtype == TYPE_FLOAT)
714 if (CanConstFold(exprs[0], exprs[1]))
715 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(0), ConstF(1)));
717 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_VF, exprs[0], exprs[1]);
721 if (CanConstFold(exprs[0], exprs[1]))
722 out = (ast_expression*)parser_const_float(parser, vec3_mulvv(ConstV(0), ConstV(1)));
724 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
728 parseerror(parser, "invalid types used in expression: cannot multiply types %s and %s",
729 type_name[exprs[1]->expression.vtype],
730 type_name[exprs[0]->expression.vtype]);
735 if (NotSameType(TYPE_FLOAT)) {
736 parseerror(parser, "invalid types used in expression: cannot divide types %s and %s",
737 type_name[exprs[0]->expression.vtype],
738 type_name[exprs[1]->expression.vtype]);
741 if (CanConstFold(exprs[0], exprs[1]))
742 out = (ast_expression*)parser_const_float(parser, ConstF(0) / ConstF(1));
744 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F, exprs[0], exprs[1]);
748 parseerror(parser, "qc does not have a modulo operator");
752 if (NotSameType(TYPE_FLOAT)) {
753 parseerror(parser, "invalid types used in expression: cannot perform bit operations between types %s and %s",
754 type_name[exprs[0]->expression.vtype],
755 type_name[exprs[1]->expression.vtype]);
758 if (CanConstFold(exprs[0], exprs[1]))
759 out = (ast_expression*)parser_const_float(parser,
760 (op->id == opid1('|') ? (float)( ((qcint)ConstF(0)) | ((qcint)ConstF(1)) ) :
761 (float)( ((qcint)ConstF(0)) & ((qcint)ConstF(1)) ) ));
763 out = (ast_expression*)ast_binary_new(ctx,
764 (op->id == opid1('|') ? INSTR_BITOR : INSTR_BITAND),
768 parseerror(parser, "TODO: bitxor");
773 case opid3('<','<','='):
774 case opid3('>','>','='):
775 parseerror(parser, "TODO: shifts");
779 generated_op += 1; /* INSTR_OR */
781 generated_op += INSTR_AND;
782 if (NotSameType(TYPE_FLOAT)) {
783 parseerror(parser, "invalid types used in expression: cannot perform logical operations between types %s and %s",
784 type_name[exprs[0]->expression.vtype],
785 type_name[exprs[1]->expression.vtype]);
786 parseerror(parser, "TODO: logical ops for arbitrary types using INSTR_NOT");
787 parseerror(parser, "TODO: optional early out");
790 if (opts_standard == COMPILER_GMQCC)
791 printf("TODO: early out logic\n");
792 if (CanConstFold(exprs[0], exprs[1]))
793 out = (ast_expression*)parser_const_float(parser,
794 (generated_op == INSTR_OR ? (ConstF(0) || ConstF(1)) : (ConstF(0) && ConstF(1))));
796 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
800 generated_op += 1; /* INSTR_GT */
802 generated_op += 1; /* INSTR_LT */
803 case opid2('>', '='):
804 generated_op += 1; /* INSTR_GE */
805 case opid2('<', '='):
806 generated_op += INSTR_LE;
807 if (NotSameType(TYPE_FLOAT)) {
808 parseerror(parser, "invalid types used in expression: cannot perform comparison between types %s and %s",
809 type_name[exprs[0]->expression.vtype],
810 type_name[exprs[1]->expression.vtype]);
813 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
815 case opid2('!', '='):
816 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) {
817 parseerror(parser, "invalid types used in expression: cannot perform comparison between types %s and %s",
818 type_name[exprs[0]->expression.vtype],
819 type_name[exprs[1]->expression.vtype]);
822 out = (ast_expression*)ast_binary_new(ctx, type_ne_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]);
824 case opid2('=', '='):
825 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) {
826 parseerror(parser, "invalid types used in expression: cannot perform comparison between types %s and %s",
827 type_name[exprs[0]->expression.vtype],
828 type_name[exprs[1]->expression.vtype]);
831 out = (ast_expression*)ast_binary_new(ctx, type_eq_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]);
835 if (ast_istype(exprs[0], ast_entfield))
836 assignop = type_storep_instr[exprs[0]->expression.vtype];
838 assignop = type_store_instr[exprs[0]->expression.vtype];
839 out = (ast_expression*)ast_store_new(ctx, assignop, exprs[0], exprs[1]);
843 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
844 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
846 parseerror(parser, "invalid types used in expression: cannot add or subtract type %s and %s",
847 type_name[exprs[0]->expression.vtype],
848 type_name[exprs[1]->expression.vtype]);
851 if (ast_istype(exprs[0], ast_entfield))
852 assignop = type_storep_instr[exprs[0]->expression.vtype];
854 assignop = type_store_instr[exprs[0]->expression.vtype];
855 switch (exprs[0]->expression.vtype) {
857 out = (ast_expression*)ast_binstore_new(ctx, assignop,
858 (op->id == opid2('+','=') ? INSTR_ADD_F : INSTR_SUB_F),
862 out = (ast_expression*)ast_binstore_new(ctx, assignop,
863 (op->id == opid2('+','=') ? INSTR_ADD_V : INSTR_SUB_V),
867 parseerror(parser, "invalid types used in expression: cannot add or subtract type %s and %s",
868 type_name[exprs[0]->expression.vtype],
869 type_name[exprs[1]->expression.vtype]);
877 parseerror(parser, "failed to apply operand %s", op->op);
881 DEBUGSHUNTDO(printf("applied %s\n", op->op));
882 sy->out[sy->out_count++] = syexp(ctx, out);
886 static bool parser_close_call(parser_t *parser, shunt *sy)
888 /* was a function call */
896 fid = sy->ops[sy->ops_count].off;
898 /* out[fid] is the function
899 * everything above is parameters...
901 * 1 params = ast_expression
905 if (sy->out_count < 1 || sy->out_count <= fid) {
906 parseerror(parser, "internal error: function call needs function and parameter list...");
910 fun = sy->out[fid].out;
912 call = ast_call_new(sy->ops[sy->ops_count].ctx, fun);
914 parseerror(parser, "out of memory");
918 if (fid+1 == sy->out_count) {
921 } else if (fid+2 == sy->out_count) {
924 params = sy->out[sy->out_count].block;
928 if (!ast_call_params_add(call, sy->out[sy->out_count].out)) {
929 ast_delete(sy->out[sy->out_count].out);
930 parseerror(parser, "out of memory");
934 paramcount = params->exprs_count;
935 MEM_VECTOR_MOVE(params, exprs, call, params);
939 parseerror(parser, "invalid function call");
943 /* overwrite fid, the function, with a call */
944 sy->out[fid] = syexp(call->expression.node.context, (ast_expression*)call);
946 if (fun->expression.vtype != TYPE_FUNCTION) {
947 parseerror(parser, "not a function (%s)", type_name[fun->expression.vtype]);
951 if (!fun->expression.next) {
952 parseerror(parser, "could not determine function return type");
955 if (fun->expression.params_count != paramcount) {
957 fval = (ast_istype(fun, ast_value) ? ((ast_value*)fun) : NULL);
958 if (opts_standard == COMPILER_GMQCC)
961 parseerror(parser, "too few parameters for call to %s: expected %i, got %i",
962 fval->name, (int)fun->expression.params_count, paramcount);
964 parseerror(parser, "too few parameters for function call: expected %i, got %i",
965 (int)fun->expression.params_count, paramcount);
971 return !parsewarning(parser, WARN_TOO_FEW_PARAMETERS,
972 "too few parameters for call to %s: expected %i, got %i",
973 fval->name, (int)fun->expression.params_count, paramcount);
975 return !parsewarning(parser, WARN_TOO_FEW_PARAMETERS,
976 "too few parameters for function call: expected %i, got %i",
977 (int)fun->expression.params_count, paramcount);
985 static bool parser_close_paren(parser_t *parser, shunt *sy, bool functions_only)
987 if (!sy->ops_count) {
988 parseerror(parser, "unmatched closing paren");
991 /* this would for bit a + (x) because there are no operators inside (x)
992 if (sy->ops[sy->ops_count-1].paren == 1) {
993 parseerror(parser, "empty parenthesis expression");
997 while (sy->ops_count) {
998 if (sy->ops[sy->ops_count-1].paren == 'f') {
999 if (!parser_close_call(parser, sy))
1003 if (sy->ops[sy->ops_count-1].paren == 1) {
1005 return !functions_only;
1007 if (!parser_sy_pop(parser, sy))
1013 static void parser_reclassify_token(parser_t *parser)
1016 for (i = 0; i < operator_count; ++i) {
1017 if (!strcmp(parser_tokval(parser), operators[i].op)) {
1018 parser->tok = TOKEN_OPERATOR;
1024 static ast_expression* parser_expression_leave(parser_t *parser, bool stopatcomma)
1026 ast_expression *expr = NULL;
1028 bool wantop = false;
1029 bool gotmemberof = false;
1031 /* count the parens because an if starts with one, so the
1032 * end of a condition is an unmatched closing paren
1036 MEM_VECTOR_INIT(&sy, out);
1037 MEM_VECTOR_INIT(&sy, ops);
1039 parser->lex->flags.noops = false;
1041 parser_reclassify_token(parser);
1046 gotmemberof = false;
1048 parser->memberof = 0;
1050 if (parser->tok == TOKEN_IDENT)
1052 ast_expression *var;
1054 parseerror(parser, "expected operator or end of statement");
1059 if (opts_standard == COMPILER_GMQCC)
1061 if (parser->memberof == TYPE_ENTITY) {
1062 /* still get vars first since there could be a fieldpointer */
1063 var = parser_find_var(parser, parser_tokval(parser));
1065 var = parser_find_field(parser, parser_tokval(parser));
1067 else if (parser->memberof == TYPE_VECTOR)
1069 parseerror(parser, "TODO: implement effective vector member access");
1072 else if (parser->memberof) {
1073 parseerror(parser, "namespace for member not found");
1077 var = parser_find_var(parser, parser_tokval(parser));
1079 var = parser_find_var(parser, parser_tokval(parser));
1081 var = parser_find_field(parser, parser_tokval(parser));
1084 parseerror(parser, "unexpected ident: %s", parser_tokval(parser));
1087 if (!shunt_out_add(&sy, syexp(parser_ctx(parser), var))) {
1088 parseerror(parser, "out of memory");
1091 DEBUGSHUNTDO(printf("push %s\n", parser_tokval(parser)));
1093 else if (parser->tok == TOKEN_FLOATCONST) {
1096 parseerror(parser, "expected operator or end of statement, got constant");
1100 val = parser_const_float(parser, (parser_token(parser)->constval.f));
1103 if (!shunt_out_add(&sy, syexp(parser_ctx(parser), (ast_expression*)val))) {
1104 parseerror(parser, "out of memory");
1107 DEBUGSHUNTDO(printf("push %g\n", parser_token(parser)->constval.f));
1109 else if (parser->tok == TOKEN_INTCONST) {
1112 parseerror(parser, "expected operator or end of statement, got constant");
1116 val = parser_const_float(parser, (double)(parser_token(parser)->constval.i));
1119 if (!shunt_out_add(&sy, syexp(parser_ctx(parser), (ast_expression*)val))) {
1120 parseerror(parser, "out of memory");
1123 DEBUGSHUNTDO(printf("push %i\n", parser_token(parser)->constval.i));
1125 else if (parser->tok == TOKEN_STRINGCONST) {
1128 parseerror(parser, "expected operator or end of statement, got constant");
1132 val = parser_const_string(parser, parser_tokval(parser));
1135 if (!shunt_out_add(&sy, syexp(parser_ctx(parser), (ast_expression*)val))) {
1136 parseerror(parser, "out of memory");
1139 DEBUGSHUNTDO(printf("push string\n"));
1141 else if (parser->tok == TOKEN_VECTORCONST) {
1144 parseerror(parser, "expected operator or end of statement, got constant");
1148 val = parser_const_vector(parser, parser_token(parser)->constval.v);
1151 if (!shunt_out_add(&sy, syexp(parser_ctx(parser), (ast_expression*)val))) {
1152 parseerror(parser, "out of memory");
1155 DEBUGSHUNTDO(printf("push '%g %g %g'\n",
1156 parser_token(parser)->constval.v.x,
1157 parser_token(parser)->constval.v.y,
1158 parser_token(parser)->constval.v.z));
1160 else if (parser->tok == '(') {
1161 parseerror(parser, "internal error: '(' should be classified as operator");
1164 else if (parser->tok == ')') {
1166 DEBUGSHUNTDO(printf("do[op] )\n"));
1170 /* we do expect an operator next */
1171 /* closing an opening paren */
1172 if (!parser_close_paren(parser, &sy, false))
1175 DEBUGSHUNTDO(printf("do[nop] )\n"));
1179 /* allowed for function calls */
1180 if (!parser_close_paren(parser, &sy, true))
1185 else if (parser->tok != TOKEN_OPERATOR) {
1187 parseerror(parser, "expected operator or end of statement");
1194 /* classify the operator */
1195 /* TODO: suffix operators */
1196 const oper_info *op;
1197 const oper_info *olast = NULL;
1199 for (o = 0; o < operator_count; ++o) {
1200 if ((!(operators[o].flags & OP_PREFIX) == wantop) &&
1201 !(operators[o].flags & OP_SUFFIX) && /* remove this */
1202 !strcmp(parser_tokval(parser), operators[o].op))
1207 if (o == operator_count) {
1208 /* no operator found... must be the end of the statement */
1211 /* found an operator */
1214 /* when declaring variables, a comma starts a new variable */
1215 if (op->id == opid1(',') && !parens && stopatcomma) {
1216 /* fixup the token */
1221 if (sy.ops_count && !sy.ops[sy.ops_count-1].paren)
1222 olast = &operators[sy.ops[sy.ops_count-1].etype-1];
1225 (op->prec < olast->prec) ||
1226 (op->assoc == ASSOC_LEFT && op->prec <= olast->prec) ) )
1228 if (!parser_sy_pop(parser, &sy))
1230 if (sy.ops_count && !sy.ops[sy.ops_count-1].paren)
1231 olast = &operators[sy.ops[sy.ops_count-1].etype-1];
1236 if (op->id == opid1('.') && opts_standard == COMPILER_GMQCC) {
1237 /* for gmqcc standard: open up the namespace of the previous type */
1238 ast_expression *prevex = sy.out[sy.out_count-1].out;
1240 parseerror(parser, "unexpected member operator");
1243 if (prevex->expression.vtype == TYPE_ENTITY)
1244 parser->memberof = TYPE_ENTITY;
1245 else if (prevex->expression.vtype == TYPE_VECTOR)
1246 parser->memberof = TYPE_VECTOR;
1248 parseerror(parser, "type error: type has no members");
1254 if (op->id == opid1('(')) {
1256 DEBUGSHUNTDO(printf("push [op] (\n"));
1258 /* we expected an operator, this is the function-call operator */
1259 if (!shunt_ops_add(&sy, syparen(parser_ctx(parser), 'f', sy.out_count-1))) {
1260 parseerror(parser, "out of memory");
1265 if (!shunt_ops_add(&sy, syparen(parser_ctx(parser), 1, 0))) {
1266 parseerror(parser, "out of memory");
1269 DEBUGSHUNTDO(printf("push [nop] (\n"));
1273 DEBUGSHUNTDO(printf("push operator %s\n", op->op));
1274 if (!shunt_ops_add(&sy, syop(parser_ctx(parser), op)))
1279 if (!parser_next(parser)) {
1282 if (parser->tok == ';' || parser->tok == ']') {
1287 while (sy.ops_count) {
1288 if (!parser_sy_pop(parser, &sy))
1292 parser->lex->flags.noops = true;
1293 if (!sy.out_count) {
1294 parseerror(parser, "empty expression");
1297 expr = sy.out[0].out;
1298 MEM_VECTOR_CLEAR(&sy, out);
1299 MEM_VECTOR_CLEAR(&sy, ops);
1300 DEBUGSHUNTDO(printf("shunt done\n"));
1304 parser->lex->flags.noops = true;
1305 MEM_VECTOR_CLEAR(&sy, out);
1306 MEM_VECTOR_CLEAR(&sy, ops);
1310 static ast_expression* parser_expression(parser_t *parser, bool stopatcomma)
1312 ast_expression *e = parser_expression_leave(parser, stopatcomma);
1315 if (!parser_next(parser)) {
1322 static bool parser_parse_if(parser_t *parser, ast_block *block, ast_expression **out)
1325 ast_expression *cond, *ontrue, *onfalse = NULL;
1327 lex_ctx ctx = parser_ctx(parser);
1329 /* skip the 'if' and check for opening paren */
1330 if (!parser_next(parser) || parser->tok != '(') {
1331 parseerror(parser, "expected 'if' condition in parenthesis");
1334 /* parse into the expression */
1335 if (!parser_next(parser)) {
1336 parseerror(parser, "expected 'if' condition after opening paren");
1339 /* parse the condition */
1340 cond = parser_expression_leave(parser, false);
1344 if (parser->tok != ')') {
1345 parseerror(parser, "expected closing paren after 'if' condition");
1349 /* parse into the 'then' branch */
1350 if (!parser_next(parser)) {
1351 parseerror(parser, "expected statement for on-true branch of 'if'");
1355 ontrue = parser_parse_statement_or_block(parser);
1360 /* check for an else */
1361 if (!strcmp(parser_tokval(parser), "else")) {
1362 /* parse into the 'else' branch */
1363 if (!parser_next(parser)) {
1364 parseerror(parser, "expected on-false branch after 'else'");
1369 onfalse = parser_parse_statement_or_block(parser);
1377 ifthen = ast_ifthen_new(ctx, cond, ontrue, onfalse);
1378 *out = (ast_expression*)ifthen;
1382 static bool parser_parse_while(parser_t *parser, ast_block *block, ast_expression **out)
1385 ast_expression *cond, *ontrue;
1387 lex_ctx ctx = parser_ctx(parser);
1389 /* skip the 'while' and check for opening paren */
1390 if (!parser_next(parser) || parser->tok != '(') {
1391 parseerror(parser, "expected 'while' condition in parenthesis");
1394 /* parse into the expression */
1395 if (!parser_next(parser)) {
1396 parseerror(parser, "expected 'while' condition after opening paren");
1399 /* parse the condition */
1400 cond = parser_expression_leave(parser, false);
1404 if (parser->tok != ')') {
1405 parseerror(parser, "expected closing paren after 'while' condition");
1409 /* parse into the 'then' branch */
1410 if (!parser_next(parser)) {
1411 parseerror(parser, "expected while-loop body");
1415 ontrue = parser_parse_statement_or_block(parser);
1421 aloop = ast_loop_new(ctx, NULL, cond, NULL, NULL, ontrue);
1422 *out = (ast_expression*)aloop;
1426 static bool parser_parse_dowhile(parser_t *parser, ast_block *block, ast_expression **out)
1429 ast_expression *cond, *ontrue;
1431 lex_ctx ctx = parser_ctx(parser);
1433 /* skip the 'do' and get the body */
1434 if (!parser_next(parser)) {
1435 parseerror(parser, "expected loop body");
1438 ontrue = parser_parse_statement_or_block(parser);
1442 /* expect the "while" */
1443 if (parser->tok != TOKEN_KEYWORD ||
1444 strcmp(parser_tokval(parser), "while"))
1446 parseerror(parser, "expected 'while' and condition");
1451 /* skip the 'while' and check for opening paren */
1452 if (!parser_next(parser) || parser->tok != '(') {
1453 parseerror(parser, "expected 'while' condition in parenthesis");
1457 /* parse into the expression */
1458 if (!parser_next(parser)) {
1459 parseerror(parser, "expected 'while' condition after opening paren");
1463 /* parse the condition */
1464 cond = parser_expression_leave(parser, false);
1468 if (parser->tok != ')') {
1469 parseerror(parser, "expected closing paren after 'while' condition");
1475 if (!parser_next(parser) || parser->tok != ';') {
1476 parseerror(parser, "expected semicolon after condition");
1482 if (!parser_next(parser)) {
1483 parseerror(parser, "parse error");
1489 aloop = ast_loop_new(ctx, NULL, NULL, cond, NULL, ontrue);
1490 *out = (ast_expression*)aloop;
1494 static bool parser_parse_for(parser_t *parser, ast_block *block, ast_expression **out)
1497 ast_expression *initexpr, *cond, *increment, *ontrue;
1498 size_t oldblocklocal;
1500 lex_ctx ctx = parser_ctx(parser);
1502 oldblocklocal = parser->blocklocal;
1503 parser->blocklocal = parser->locals_count;
1510 /* skip the 'while' and check for opening paren */
1511 if (!parser_next(parser) || parser->tok != '(') {
1512 parseerror(parser, "expected 'for' expressions in parenthesis");
1515 /* parse into the expression */
1516 if (!parser_next(parser)) {
1517 parseerror(parser, "expected 'for' initializer after opening paren");
1521 if (parser->tok == TOKEN_TYPENAME) {
1522 if (opts_standard != COMPILER_GMQCC) {
1523 if (parsewarning(parser, WARN_EXTENSIONS,
1524 "current standard does not allow variable declarations in for-loop initializers"))
1528 parseerror(parser, "TODO: assignment of new variables to be non-const");
1530 if (!parser_variable(parser, block))
1533 else if (parser->tok != ';')
1535 initexpr = parser_expression_leave(parser, false);
1540 /* move on to condition */
1541 if (parser->tok != ';') {
1542 parseerror(parser, "expected semicolon after for-loop initializer");
1545 if (!parser_next(parser)) {
1546 parseerror(parser, "expected for-loop condition");
1550 /* parse the condition */
1551 if (parser->tok != ';') {
1552 cond = parser_expression_leave(parser, false);
1557 /* move on to incrementor */
1558 if (parser->tok != ';') {
1559 parseerror(parser, "expected semicolon after for-loop initializer");
1562 if (!parser_next(parser)) {
1563 parseerror(parser, "expected for-loop condition");
1567 /* parse the incrementor */
1568 if (parser->tok != ')') {
1569 increment = parser_expression_leave(parser, false);
1575 if (parser->tok != ')') {
1576 parseerror(parser, "expected closing paren after 'for-loop' incrementor");
1579 /* parse into the 'then' branch */
1580 if (!parser_next(parser)) {
1581 parseerror(parser, "expected for-loop body");
1584 ontrue = parser_parse_statement_or_block(parser);
1589 aloop = ast_loop_new(ctx, initexpr, cond, NULL, increment, ontrue);
1590 *out = (ast_expression*)aloop;
1592 while (parser->locals_count > parser->blocklocal)
1593 parser_pop_local(parser);
1594 parser->blocklocal = oldblocklocal;
1597 if (initexpr) ast_delete(initexpr);
1598 if (cond) ast_delete(cond);
1599 if (increment) ast_delete(increment);
1600 while (parser->locals_count > parser->blocklocal)
1601 parser_pop_local(parser);
1602 parser->blocklocal = oldblocklocal;
1606 static bool parser_parse_statement(parser_t *parser, ast_block *block, ast_expression **out)
1608 if (parser->tok == TOKEN_TYPENAME)
1610 /* local variable */
1612 parseerror(parser, "cannot declare a variable from here");
1615 if (opts_standard == COMPILER_QCC) {
1616 if (parsewarning(parser, WARN_EXTENSIONS, "missing 'local' keyword when declaring a local variable"))
1619 if (!parser_variable(parser, block))
1624 else if (parser->tok == TOKEN_KEYWORD)
1626 if (!strcmp(parser_tokval(parser), "local"))
1629 parseerror(parser, "cannot declare a local variable here");
1632 if (!parser_next(parser)) {
1633 parseerror(parser, "expected variable declaration");
1636 if (!parser_variable(parser, block))
1641 else if (!strcmp(parser_tokval(parser), "return"))
1643 ast_expression *exp = NULL;
1644 ast_return *ret = NULL;
1645 ast_value *expected = parser->function->vtype;
1647 if (!parser_next(parser)) {
1648 parseerror(parser, "expected return expression");
1652 if (parser->tok != ';') {
1653 exp = parser_expression(parser, false);
1657 if (exp->expression.vtype != expected->expression.next->expression.vtype) {
1658 parseerror(parser, "return with invalid expression");
1661 ret = ast_return_new(exp->expression.node.context, exp);
1667 if (!parser_next(parser))
1668 parseerror(parser, "parse error");
1669 if (expected->expression.next->expression.vtype != TYPE_VOID) {
1670 if (opts_standard != COMPILER_GMQCC)
1671 (void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value");
1673 parseerror(parser, "return without value");
1675 ret = ast_return_new(parser_ctx(parser), NULL);
1677 *out = (ast_expression*)ret;
1680 else if (!strcmp(parser_tokval(parser), "if"))
1682 return parser_parse_if(parser, block, out);
1684 else if (!strcmp(parser_tokval(parser), "while"))
1686 return parser_parse_while(parser, block, out);
1688 else if (!strcmp(parser_tokval(parser), "do"))
1690 return parser_parse_dowhile(parser, block, out);
1692 else if (!strcmp(parser_tokval(parser), "for"))
1694 if (opts_standard == COMPILER_QCC) {
1695 if (parsewarning(parser, WARN_EXTENSIONS, "for loops are not recognized in the original Quake C standard, to enable try an alternate standard --std=?"))
1698 return parser_parse_for(parser, block, out);
1700 parseerror(parser, "Unexpected keyword");
1703 else if (parser->tok == '{')
1706 inner = parser_parse_block(parser, false);
1709 *out = (ast_expression*)inner;
1714 ast_expression *exp = parser_expression(parser, false);
1722 static void parser_pop_local(parser_t *parser)
1724 parser->locals_count--;
1725 mem_d(parser->locals[parser->locals_count].name);
1728 static bool parser_parse_block_into(parser_t *parser, ast_block *block, bool warnreturn)
1730 size_t oldblocklocal;
1732 oldblocklocal = parser->blocklocal;
1733 parser->blocklocal = parser->locals_count;
1735 if (!parser_next(parser)) { /* skip the '{' */
1736 parseerror(parser, "expected function body");
1740 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
1742 ast_expression *expr;
1743 if (parser->tok == '}')
1746 if (!parser_parse_statement(parser, block, &expr)) {
1747 parseerror(parser, "parse error");
1753 if (!ast_block_exprs_add(block, expr)) {
1760 if (parser->tok != '}') {
1763 if (warnreturn && parser->function->vtype->expression.next->expression.vtype != TYPE_VOID)
1765 if (!block->exprs_count ||
1766 !ast_istype(block->exprs[block->exprs_count-1], ast_return))
1768 if (parsewarning(parser, WARN_MISSING_RETURN_VALUES, "control reaches end of non-void function")) {
1774 (void)parser_next(parser);
1778 while (parser->locals_count > parser->blocklocal)
1779 parser_pop_local(parser);
1780 parser->blocklocal = oldblocklocal;
1784 static ast_block* parser_parse_block(parser_t *parser, bool warnreturn)
1787 block = ast_block_new(parser_ctx(parser));
1790 if (!parser_parse_block_into(parser, block, warnreturn)) {
1791 ast_block_delete(block);
1797 static ast_expression* parser_parse_statement_or_block(parser_t *parser)
1799 ast_expression *expr = NULL;
1800 if (parser->tok == '{')
1801 return (ast_expression*)parser_parse_block(parser, false);
1802 if (!parser_parse_statement(parser, NULL, &expr))
1807 static bool create_vector_members(parser_t *parser, ast_value *var,
1808 varentry_t *vx, varentry_t *vy, varentry_t *vz)
1810 size_t len = strlen(var->name);
1811 vx->var = (ast_expression*)ast_member_new(ast_ctx(var), (ast_expression*)var, 0);
1813 parseerror(parser, "failed to create vector members (out of memory)");
1817 vy->var = (ast_expression*)ast_member_new(ast_ctx(var), (ast_expression*)var, 1);
1819 ast_delete(vx->var);
1820 parseerror(parser, "failed to create vector members (out of memory)");
1824 vz->var = (ast_expression*)ast_member_new(ast_ctx(var), (ast_expression*)var, 2);
1826 ast_delete(vy->var);
1827 ast_delete(vx->var);
1828 parseerror(parser, "failed to create vector members (out of memory)");
1832 if ( !(vx->name = (char*)mem_a(len+3)) ) {
1833 ast_delete(vz->var);
1834 ast_delete(vy->var);
1835 ast_delete(vx->var);
1836 parseerror(parser, "failed to create vector members (out of memory)");
1839 if ( !(vy->name = (char*)mem_a(len+3)) ) {
1841 ast_delete(vz->var);
1842 ast_delete(vy->var);
1843 ast_delete(vx->var);
1844 parseerror(parser, "failed to create vector members (out of memory)");
1847 if ( !(vz->name = (char*)mem_a(len+3)) ) {
1850 ast_delete(vz->var);
1851 ast_delete(vy->var);
1852 ast_delete(vx->var);
1853 parseerror(parser, "failed to create vector members (out of memory)");
1857 memcpy(vx->name, var->name, len);
1858 memcpy(vy->name, var->name, len);
1859 memcpy(vz->name, var->name, len);
1860 vx->name[len] = vy->name[len] = vz->name[len] = '_';
1861 vx->name[len+1] = 'x';
1862 vy->name[len+1] = 'y';
1863 vz->name[len+1] = 'z';
1864 vx->name[len+2] = vy->name[len+2] = vz->name[len+2] = 0;
1868 static bool parser_variable(parser_t *parser, ast_block *localblock)
1870 bool isfunc = false;
1874 ast_expression *olddecl;
1881 int basetype = parser_token(parser)->constval.t;
1883 if (!parser_next(parser)) {
1884 parseerror(parser, "expected variable definition");
1888 typevar = parser_parse_type(parser, basetype, &isfunc);
1898 ctx = parser_ctx(parser);
1899 var = ast_value_copy(typevar);
1902 ast_delete(typevar);
1903 parseerror(parser, "failed to create variable");
1907 if (parser->tok != TOKEN_IDENT) {
1908 parseerror(parser, "expected variable name");
1909 ast_value_delete(typevar);
1910 ast_value_delete(var);
1915 if (!localblock && (olddecl = parser_find_global(parser, parser_tokval(parser)))) {
1916 ast_value_delete(typevar);
1917 ast_value_delete(var);
1918 parseerror(parser, "global `%s` already declared here: %s:%i",
1919 parser_tokval(parser), ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
1924 olddecl = parser_find_local(parser, parser_tokval(parser), parser->blocklocal, &isparam);
1925 if (opts_standard == COMPILER_GMQCC)
1930 ast_value_delete(typevar);
1931 ast_value_delete(var);
1932 parseerror(parser, "local `%s` already declared here: %s:%i",
1933 parser_tokval(parser), ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
1938 if( (!isparam && olddecl) || (olddecl = parser_find_local(parser, parser_tokval(parser), 0, &isparam)) )
1940 if (parsewarning(parser, WARN_LOCAL_SHADOWS,
1941 "local `%s` is shadowing a parameter", parser_tokval(parser)))
1943 ast_value_delete(typevar);
1944 ast_value_delete(var);
1945 parseerror(parser, "local `%s` already declared here: %s:%i",
1946 parser_tokval(parser), ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
1955 ast_value_delete(var);
1957 parsewarning(parser, WARN_LOCAL_SHADOWS,
1958 "a parameter is shadowing local `%s`", parser_tokval(parser)))
1960 ast_value_delete(typevar);
1961 ast_value_delete(var);
1966 parseerror(parser, "local `%s` already declared here: %s:%i",
1967 parser_tokval(parser), ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
1968 ast_value_delete(typevar);
1969 ast_value_delete(var);
1978 if (!ast_value_set_name(var, parser_tokval(parser))) {
1979 parseerror(parser, "failed to set variable name\n");
1980 ast_value_delete(typevar);
1981 ast_value_delete(var);
1986 /* a function was defined */
1988 ast_value *proto = NULL;
1992 olddecl = parser_find_global(parser, parser_tokval(parser));
1994 olddecl = parser_find_local(parser, parser_tokval(parser), parser->blocklocal, &dummy);
1997 /* we had a prototype */
1998 if (!ast_istype(olddecl, ast_value)) {
1999 /* theoretically not possible you think?
2005 parseerror(parser, "cannot declare a function with the same name as a vector's member: %s",
2006 parser_tokval(parser));
2007 ast_value_delete(var);
2011 proto = (ast_value*)olddecl;
2014 /* turn var into a value of TYPE_FUNCTION, with the old var
2017 fval = ast_value_new(ctx, var->name, TYPE_FUNCTION);
2019 ast_value_delete(var);
2020 ast_value_delete(typevar);
2021 if (fval) ast_value_delete(fval);
2025 fval->expression.next = (ast_expression*)var;
2026 MEM_VECTOR_MOVE(&var->expression, params, &fval->expression, params);
2028 /* we compare the type late here, but it's easier than
2029 * messing with the parameter-vector etc. earlier
2033 if (!ast_compare_type((ast_expression*)proto, (ast_expression*)fval)) {
2034 parseerror(parser, "conflicting types for `%s`, previous declaration was here: %s:%i",
2036 ast_ctx(proto).file, ast_ctx(proto).line);
2037 ast_value_delete(fval);
2038 ast_value_delete(typevar);
2041 /* copy over the parameter names */
2042 for (param = 0; param < fval->expression.params_count; ++param)
2043 ast_value_set_name(proto->expression.params[param], fval->expression.params[param]->name);
2044 /* copy the new context */
2045 ast_ctx(proto) = ast_ctx(fval);
2047 /* now ditch the rest of the new data */
2048 ast_value_delete(fval);
2057 varent.name = util_strdup(var->name);
2058 varent.var = (ast_expression*)var;
2059 if (var->expression.vtype == TYPE_VECTOR)
2061 varentry_t vx, vy, vz;
2062 if (!create_vector_members(parser, var, &vx, &vy, &vz)) {
2064 ast_value_delete(typevar);
2069 (void)!parser_t_globals_add(parser, varent);
2070 (void)!parser_t_globals_add(parser, vx);
2071 (void)!parser_t_globals_add(parser, vy);
2072 (void)!parser_t_globals_add(parser, vz);
2074 (void)!parser_t_locals_add(parser, varent);
2075 (void)!parser_t_locals_add(parser, vx);
2076 (void)!parser_t_locals_add(parser, vy);
2077 (void)!parser_t_locals_add(parser, vz);
2078 if (!ast_block_locals_add(localblock, var) ||
2079 !ast_block_collect(localblock, vx.var) ||
2080 !ast_block_collect(localblock, vy.var) ||
2081 !ast_block_collect(localblock, vz.var))
2083 parser_pop_local(parser);
2084 parser_pop_local(parser);
2085 parser_pop_local(parser);
2086 parser_pop_local(parser);
2087 ast_value_delete(var);
2088 ast_value_delete(typevar);
2095 if ( (!localblock && !parser_t_globals_add(parser, varent)) ||
2096 ( localblock && !parser_t_locals_add(parser, varent)) )
2098 ast_value_delete(var);
2099 ast_value_delete(typevar);
2102 if (localblock && !ast_block_locals_add(localblock, var))
2104 parser_pop_local(parser);
2105 ast_value_delete(var);
2106 ast_value_delete(typevar);
2113 if (!parser_next(parser)) {
2114 ast_value_delete(typevar);
2115 ast_value_delete(var);
2119 if (parser->tok == ';') {
2120 ast_value_delete(typevar);
2121 if (!parser_next(parser))
2126 if (parser->tok == ',') {
2128 if (!parser_next(parser)) {
2129 ast_delete(typevar);
2135 if (localblock && opts_standard == COMPILER_QCC) {
2136 if (parsewarning(parser, WARN_LOCAL_CONSTANTS,
2137 "initializing expression turns variable `%s` into a constant in this standard",
2140 ast_value_delete(typevar);
2145 if (parser->tok != '=') {
2146 ast_value_delete(typevar);
2147 parseerror(parser, "expected '=' or ';'");
2151 if (!parser_next(parser)) {
2152 ast_value_delete(typevar);
2156 if (parser->tok == '#') {
2160 parseerror(parser, "cannot declare builtins within functions");
2161 ast_value_delete(typevar);
2165 parseerror(parser, "unexpected builtin number, '%s' is not a function", var->name);
2166 ast_value_delete(typevar);
2169 if (!parser_next(parser)) {
2170 parseerror(parser, "expected builtin number");
2171 ast_value_delete(typevar);
2174 if (parser->tok != TOKEN_INTCONST) {
2175 parseerror(parser, "builtin number must be an integer constant");
2176 ast_value_delete(typevar);
2179 if (parser_token(parser)->constval.i <= 0) {
2180 parseerror(parser, "builtin number must be positive integer greater than zero");
2181 ast_value_delete(typevar);
2185 func = ast_function_new(ast_ctx(var), var->name, var);
2187 parseerror(parser, "failed to allocate function for `%s`", var->name);
2188 ast_value_delete(typevar);
2191 if (!parser_t_functions_add(parser, func)) {
2192 parseerror(parser, "failed to allocate slot for function `%s`", var->name);
2193 ast_function_delete(func);
2194 var->constval.vfunc = NULL;
2195 ast_value_delete(typevar);
2199 func->builtin = -parser_token(parser)->constval.i;
2201 if (!parser_next(parser)) {
2202 ast_value_delete(typevar);
2205 } else if (parser->tok == '{' || parser->tok == '[') {
2212 ast_expression *fld_think, *fld_nextthink, *fld_frame;
2213 ast_expression *gbl_time, *gbl_self;
2214 ast_expression *framenum, *nextthink;
2215 bool has_frame_think;
2217 has_frame_think = false;
2218 old = parser->function;
2221 parseerror(parser, "cannot declare functions within functions");
2222 ast_value_delete(typevar);
2226 if (parser->tok == '[') {
2227 /* got a frame definition: [ framenum, nextthink ]
2228 * this translates to:
2229 * self.frame = framenum;
2230 * self.nextthink = time + 0.1;
2231 * self.think = nextthink;
2235 fld_think = parser_find_field(parser, "think");
2236 fld_nextthink = parser_find_field(parser, "nextthink");
2237 fld_frame = parser_find_field(parser, "frame");
2238 if (!fld_think || !fld_nextthink || !fld_frame) {
2239 parseerror(parser, "cannot use [frame,think] notation without the required fields");
2240 parseerror(parser, "please declare the following entityfields: `frame`, `think`, `nextthink`");
2241 ast_value_delete(typevar);
2244 gbl_time = parser_find_global(parser, "time");
2245 gbl_self = parser_find_global(parser, "self");
2246 if (!gbl_time || !gbl_self) {
2247 parseerror(parser, "cannot use [frame,think] notation without the required globals");
2248 parseerror(parser, "please declare the following globals: `time`, `self`");
2249 ast_value_delete(typevar);
2253 if (!parser_next(parser)) {
2254 ast_value_delete(typevar);
2258 framenum = parser_expression_leave(parser, true);
2260 parseerror(parser, "expected a framenumber constant in[frame,think] notation");
2261 ast_value_delete(typevar);
2264 if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->isconst) {
2265 ast_unref(framenum);
2266 parseerror(parser, "framenumber in [frame,think] notation must be a constant");
2269 if (parser->tok != ',') {
2270 ast_unref(framenum);
2271 parseerror(parser, "expected comma after frame number in [frame,think] notation");
2272 parseerror(parser, "Got a %i\n", parser->tok);
2273 ast_value_delete(typevar);
2277 if (!parser_next(parser)) {
2278 ast_unref(framenum);
2279 ast_value_delete(typevar);
2283 if (parser->tok == TOKEN_IDENT && !parser_find_var(parser, parser_tokval(parser)))
2285 /* qc allows the use of not-yet-declared functions here
2286 * - this automatically creates a prototype */
2288 ast_value *thinkfunc;
2289 ast_expression *functype = fld_think->expression.next;
2291 thinkfunc = ast_value_new(parser_ctx(parser), parser_tokval(parser), functype->expression.vtype);
2292 if (!thinkfunc || !ast_type_adopt(thinkfunc, functype)) {
2293 ast_unref(framenum);
2294 parseerror(parser, "failed to create implicit prototype for `%s`", parser_tokval(parser));
2295 ast_value_delete(typevar);
2299 if (!parser_next(parser)) {
2300 ast_unref(framenum);
2301 ast_value_delete(typevar);
2305 varent.var = (ast_expression*)thinkfunc;
2306 varent.name = util_strdup(thinkfunc->name);
2307 (void)!parser_t_globals_add(parser, varent);
2308 nextthink = (ast_expression*)thinkfunc;
2311 nextthink = parser_expression_leave(parser, true);
2313 ast_unref(framenum);
2314 parseerror(parser, "expected a think-function in [frame,think] notation");
2315 ast_value_delete(typevar);
2320 if (!ast_istype(nextthink, ast_value)) {
2321 ast_unref(nextthink);
2322 ast_unref(framenum);
2323 parseerror(parser, "think-function in [frame,think] notation must be a constant");
2326 if (parser->tok != ']') {
2327 parseerror(parser, "expected closing `]` for [frame,think] notation");
2328 ast_unref(nextthink);
2329 ast_unref(framenum);
2330 ast_value_delete(typevar);
2334 if (!parser_next(parser)) {
2335 ast_unref(nextthink);
2336 ast_unref(framenum);
2337 ast_value_delete(typevar);
2341 if (parser->tok != '{') {
2342 parseerror(parser, "a function body has to be declared after a [frame,think] declaration");
2343 ast_unref(nextthink);
2344 ast_unref(framenum);
2345 ast_value_delete(typevar);
2349 has_frame_think = true;
2352 block = ast_block_new(parser_ctx(parser));
2354 parseerror(parser, "failed to allocate block");
2355 ast_value_delete(typevar);
2359 if (has_frame_think) {
2361 ast_expression *self_frame;
2362 ast_expression *self_nextthink;
2363 ast_expression *self_think;
2364 ast_expression *time_plus_1;
2365 ast_store *store_frame;
2366 ast_store *store_nextthink;
2367 ast_store *store_think;
2369 ctx = parser_ctx(parser);
2370 self_frame = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_frame);
2371 self_nextthink = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_nextthink);
2372 self_think = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_think);
2374 time_plus_1 = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F,
2375 gbl_time, (ast_expression*)parser_const_float(parser, 0.1));
2377 store_frame = ast_store_new(ctx, INSTR_STOREP_F, self_frame, framenum);
2378 store_nextthink = ast_store_new(ctx, INSTR_STOREP_F, self_nextthink, time_plus_1);
2379 store_think = ast_store_new(ctx, INSTR_STOREP_FNC, self_think, nextthink);
2381 if (!ast_block_exprs_add(block, (ast_expression*)store_frame) ||
2382 !ast_block_exprs_add(block, (ast_expression*)store_nextthink) ||
2383 !ast_block_exprs_add(block, (ast_expression*)store_think) )
2385 parseerror(parser, "failed to generate code for [frame,think]");
2386 ast_block_delete(block);
2387 ast_value_delete(typevar);
2392 for (parami = 0; parami < var->expression.params_count; ++parami) {
2393 ast_value *param = var->expression.params[parami];
2394 varentry_t vx, vy, vz;
2396 if (param->expression.vtype != TYPE_VECTOR &&
2397 (param->expression.vtype != TYPE_FIELD ||
2398 param->expression.next->expression.vtype != TYPE_VECTOR))
2403 if (!create_vector_members(parser, param, &vx, &vy, &vz)) {
2404 ast_block_delete(block);
2405 ast_value_delete(typevar);
2409 (void)!parser_t_locals_add(parser, vx);
2410 (void)!parser_t_locals_add(parser, vy);
2411 (void)!parser_t_locals_add(parser, vz);
2412 if (!ast_block_collect(block, vx.var) ||
2413 !ast_block_collect(block, vy.var) ||
2414 !ast_block_collect(block, vz.var) )
2416 parser_pop_local(parser);
2417 parser_pop_local(parser);
2418 parser_pop_local(parser);
2419 ast_block_delete(block);
2420 ast_value_delete(typevar);
2425 func = ast_function_new(ast_ctx(var), var->name, var);
2427 parseerror(parser, "failed to allocate function for `%s`", var->name);
2428 ast_block_delete(block);
2429 parser->function = old;
2430 ast_value_delete(typevar);
2433 if (!parser_t_functions_add(parser, func)) {
2434 parseerror(parser, "failed to allocate slot for function `%s`", var->name);
2435 ast_function_delete(func);
2436 var->constval.vfunc = NULL;
2437 ast_value_delete(typevar);
2438 ast_block_delete(block);
2439 parser->function = old;
2443 parser->function = func;
2444 if (!parser_parse_block_into(parser, block, true)) {
2445 ast_block_delete(block);
2446 parser->function = old;
2447 ast_value_delete(typevar);
2450 parser->function = old;
2451 while (parser->locals_count)
2452 parser_pop_local(parser);
2455 ast_value_delete(typevar);
2459 if (!ast_function_blocks_add(func, block)) {
2460 ast_block_delete(block);
2461 ast_value_delete(typevar);
2465 if (parser->tok == ';') {
2466 ast_value_delete(typevar);
2467 return parser_next(parser) || parser->tok == TOKEN_EOF;
2469 else if (opts_standard == COMPILER_QCC)
2470 parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)");
2471 ast_value_delete(typevar);
2474 ast_expression *cexp;
2477 cexp = parser_expression_leave(parser, true);
2478 cval = (ast_value*)cexp;
2479 if (!ast_istype(cval, ast_value) || !cval->isconst)
2480 parseerror(parser, "cannot initialize a global constant variable with a non-constant expression");
2483 var->isconst = true;
2484 if (cval->expression.vtype == TYPE_STRING)
2485 var->constval.vstring = parser_strdup(cval->constval.vstring);
2487 memcpy(&var->constval, &cval->constval, sizeof(var->constval));
2492 if (parser->tok == ',') {
2497 if (parser->tok != ';') {
2498 parseerror(parser, "missing semicolon");
2499 ast_value_delete(typevar);
2503 (void)parser_next(parser);
2505 ast_value_delete(typevar);
2510 static bool parser_do(parser_t *parser)
2512 if (parser->tok == TOKEN_TYPENAME)
2514 return parser_variable(parser, NULL);
2516 else if (parser->tok == TOKEN_KEYWORD)
2518 /* handle 'var' and 'const' */
2521 else if (parser->tok == '.')
2526 ast_expression *oldex;
2527 bool isfunc = false;
2529 lex_ctx ctx = parser_ctx(parser);
2532 /* entity-member declaration */
2533 if (!parser_next(parser) || parser->tok != TOKEN_TYPENAME) {
2534 parseerror(parser, "expected member variable definition");
2538 /* remember the base/return type */
2539 basetype = parser_token(parser)->constval.t;
2541 /* parse into the declaration */
2542 if (!parser_next(parser)) {
2543 parseerror(parser, "expected field definition");
2547 /* parse the field type fully */
2548 typevar = var = parser_parse_type(parser, basetype, &isfunc);
2553 var = ast_value_copy(typevar);
2554 /* now the field name */
2555 if (parser->tok != TOKEN_IDENT) {
2556 parseerror(parser, "expected field name");
2561 /* check for an existing field
2562 * in original qc we also have to check for an existing
2563 * global named like the field
2565 if (opts_standard == COMPILER_QCC) {
2566 if (parser_find_global(parser, parser_tokval(parser))) {
2567 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
2575 fval = ast_value_new(ctx, var->name, TYPE_FUNCTION);
2577 ast_value_delete(var);
2580 fval->expression.next = (ast_expression*)var;
2581 MEM_VECTOR_MOVE(&var->expression, params, &fval->expression, params);
2585 /* turn it into a field */
2586 fld = ast_value_new(ctx, parser_tokval(parser), TYPE_FIELD);
2587 fld->expression.next = (ast_expression*)var;
2589 if ( (oldex = parser_find_field(parser, parser_tokval(parser)))) {
2590 if (ast_istype(oldex, ast_member)) {
2591 parseerror(parser, "cannot declare a field with the same name as a vector component, component %s has been declared here: %s:%i",
2592 parser_tokval(parser), ast_ctx(oldex).file, (int)ast_ctx(oldex).line);
2596 if (!ast_istype(oldex, ast_value)) {
2597 /* not possible / sanity check */
2598 parseerror(parser, "internal error: %s is not an ast_value", parser_tokval(parser));
2603 if (!ast_compare_type(oldex, (ast_expression*)fld)) {
2604 parseerror(parser, "field %s has previously been declared with a different type here: %s:%i",
2605 parser_tokval(parser), ast_ctx(oldex).file, (int)ast_ctx(oldex).line);
2609 if (parsewarning(parser, WARN_FIELD_REDECLARED, "field `%s` has already been declared here: %s:%i",
2610 parser_tokval(parser), ast_ctx(oldex).file, (int)ast_ctx(oldex).line))
2621 varent.var = (ast_expression*)fld;
2622 varent.name = util_strdup(fld->name);
2623 (void)!parser_t_fields_add(parser, varent);
2625 if (var->expression.vtype == TYPE_VECTOR)
2627 /* create _x, _y and _z fields as well */
2628 varentry_t vx, vy, vz;
2629 if (!create_vector_members(parser, fld, &vx, &vy, &vz)) {
2633 (void)!parser_t_fields_add(parser, vx);
2634 (void)!parser_t_fields_add(parser, vy);
2635 (void)!parser_t_fields_add(parser, vz);
2639 if (!parser_next(parser)) {
2640 parseerror(parser, "expected semicolon or another field name");
2643 if (parser->tok == ';')
2645 if (parser->tok != ',' || !parser_next(parser)) {
2646 parseerror(parser, "expected semicolon or another field name");
2650 ast_delete(typevar);
2652 /* skip the semicolon */
2653 if (!parser_next(parser))
2654 return parser->tok == TOKEN_EOF;
2658 else if (parser->tok == '$')
2660 if (!parser_next(parser)) {
2661 parseerror(parser, "parse error");
2667 parseerror(parser, "unexpected token: %s", parser->lex->tok->value);
2673 static parser_t *parser;
2677 parser = (parser_t*)mem_a(sizeof(parser_t));
2681 memset(parser, 0, sizeof(*parser));
2685 bool parser_compile(const char *filename)
2687 parser->lex = lex_open(filename);
2689 printf("failed to open file \"%s\"\n", filename);
2693 /* initial lexer/parser state */
2694 parser->lex->flags.noops = true;
2696 if (parser_next(parser))
2698 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
2700 if (!parser_do(parser)) {
2701 if (parser->tok == TOKEN_EOF)
2702 parseerror(parser, "unexpected eof");
2703 else if (!parser->errors)
2704 parseerror(parser, "parse error");
2705 lex_close(parser->lex);
2711 parseerror(parser, "parse error");
2712 lex_close(parser->lex);
2717 lex_close(parser->lex);
2720 return !parser->errors;
2723 void parser_cleanup()
2726 for (i = 0; i < parser->functions_count; ++i) {
2727 ast_delete(parser->functions[i]);
2729 for (i = 0; i < parser->imm_vector_count; ++i) {
2730 ast_delete(parser->imm_vector[i]);
2732 for (i = 0; i < parser->imm_string_count; ++i) {
2733 ast_delete(parser->imm_string[i]);
2735 for (i = 0; i < parser->imm_float_count; ++i) {
2736 ast_delete(parser->imm_float[i]);
2738 for (i = 0; i < parser->fields_count; ++i) {
2739 ast_delete(parser->fields[i].var);
2740 mem_d(parser->fields[i].name);
2742 for (i = 0; i < parser->globals_count; ++i) {
2743 ast_delete(parser->globals[i].var);
2744 mem_d(parser->globals[i].name);
2746 MEM_VECTOR_CLEAR(parser, functions);
2747 MEM_VECTOR_CLEAR(parser, imm_vector);
2748 MEM_VECTOR_CLEAR(parser, imm_string);
2749 MEM_VECTOR_CLEAR(parser, imm_float);
2750 MEM_VECTOR_CLEAR(parser, globals);
2751 MEM_VECTOR_CLEAR(parser, fields);
2752 MEM_VECTOR_CLEAR(parser, locals);
2757 bool parser_finish(const char *output)
2762 if (!parser->errors)
2764 ir = ir_builder_new("gmqcc_out");
2766 printf("failed to allocate builder\n");
2770 for (i = 0; i < parser->fields_count; ++i) {
2773 if (!ast_istype(parser->fields[i].var, ast_value))
2775 field = (ast_value*)parser->fields[i].var;
2776 isconst = field->isconst;
2777 field->isconst = false;
2778 if (!ast_global_codegen((ast_value*)field, ir)) {
2779 printf("failed to generate field %s\n", field->name);
2780 ir_builder_delete(ir);
2785 ast_expression *subtype;
2786 field->isconst = true;
2787 subtype = field->expression.next;
2788 ifld = ir_builder_create_field(ir, field->name, subtype->expression.vtype);
2789 if (subtype->expression.vtype == TYPE_FIELD)
2790 ifld->fieldtype = subtype->expression.next->expression.vtype;
2791 else if (subtype->expression.vtype == TYPE_FUNCTION)
2792 ifld->outtype = subtype->expression.next->expression.vtype;
2793 (void)!ir_value_set_field(field->ir_v, ifld);
2796 for (i = 0; i < parser->globals_count; ++i) {
2797 if (!ast_istype(parser->globals[i].var, ast_value))
2799 if (!ast_global_codegen((ast_value*)(parser->globals[i].var), ir)) {
2800 printf("failed to generate global %s\n", parser->globals[i].name);
2801 ir_builder_delete(ir);
2805 for (i = 0; i < parser->imm_float_count; ++i) {
2806 if (!ast_global_codegen(parser->imm_float[i], ir)) {
2807 printf("failed to generate global %s\n", parser->imm_float[i]->name);
2808 ir_builder_delete(ir);
2812 for (i = 0; i < parser->imm_string_count; ++i) {
2813 if (!ast_global_codegen(parser->imm_string[i], ir)) {
2814 printf("failed to generate global %s\n", parser->imm_string[i]->name);
2815 ir_builder_delete(ir);
2819 for (i = 0; i < parser->imm_vector_count; ++i) {
2820 if (!ast_global_codegen(parser->imm_vector[i], ir)) {
2821 printf("failed to generate global %s\n", parser->imm_vector[i]->name);
2822 ir_builder_delete(ir);
2826 for (i = 0; i < parser->functions_count; ++i) {
2827 if (!ast_function_codegen(parser->functions[i], ir)) {
2828 printf("failed to generate function %s\n", parser->functions[i]->name);
2829 ir_builder_delete(ir);
2832 if (!ir_function_finalize(parser->functions[i]->ir_func)) {
2833 printf("failed to finalize function %s\n", parser->functions[i]->name);
2834 ir_builder_delete(ir);
2840 ir_builder_dump(ir, printf);
2842 if (!ir_builder_generate(ir, output)) {
2843 printf("*** failed to generate output file\n");
2844 ir_builder_delete(ir);
2848 ir_builder_delete(ir);
2852 printf("*** there were compile errors\n");