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 static 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 static 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 static bool GMQCC_WARN genwarning(lex_ctx ctx, int warntype, const char *fmt, ...)
90 int lvl = LVL_WARNING;
92 if (!OPTS_WARN(warntype))
99 vprintmsg(lvl, ctx.file, ctx.line, "warning", fmt, ap);
105 /**********************************************************************
106 * some maths used for constant folding
109 vector vec3_add(vector a, vector b)
118 vector vec3_sub(vector a, vector b)
127 qcfloat vec3_mulvv(vector a, vector b)
129 return (a.x * b.x + a.y * b.y + a.z * b.z);
132 vector vec3_mulvf(vector a, float b)
141 /**********************************************************************
145 bool parser_next(parser_t *parser)
147 /* lex_do kills the previous token */
148 parser->tok = lex_do(parser->lex);
149 if (parser->tok == TOKEN_EOF)
151 if (parser->tok >= TOKEN_ERROR) {
152 parseerror(parser, "lex error");
158 /* lift a token out of the parser so it's not destroyed by parser_next */
159 token *parser_lift(parser_t *parser)
161 token *tok = parser->lex->tok;
162 parser->lex->tok = NULL;
166 #define parser_tokval(p) (p->lex->tok->value)
167 #define parser_token(p) (p->lex->tok)
168 #define parser_ctx(p) (p->lex->tok->ctx)
170 ast_value* parser_const_float(parser_t *parser, double d)
174 for (i = 0; i < parser->imm_float_count; ++i) {
175 if (parser->imm_float[i]->constval.vfloat == d)
176 return parser->imm_float[i];
178 out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_FLOAT);
180 out->constval.vfloat = d;
181 if (!parser_t_imm_float_add(parser, out)) {
182 ast_value_delete(out);
188 ast_value* parser_const_float_0(parser_t *parser)
190 if (!parser->imm_float_zero)
191 parser->imm_float_zero = parser_const_float(parser, 0);
192 return parser->imm_float_zero;
195 static char *parser_strdup(const char *str)
198 /* actually dup empty strings */
199 char *out = mem_a(1);
203 return util_strdup(str);
206 ast_value* parser_const_string(parser_t *parser, const char *str)
210 for (i = 0; i < parser->imm_string_count; ++i) {
211 if (!strcmp(parser->imm_string[i]->constval.vstring, str))
212 return parser->imm_string[i];
214 out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_STRING);
216 out->constval.vstring = parser_strdup(str);
217 if (!parser_t_imm_string_add(parser, out)) {
218 ast_value_delete(out);
224 ast_value* parser_const_vector(parser_t *parser, vector v)
228 for (i = 0; i < parser->imm_vector_count; ++i) {
229 if (!memcmp(&parser->imm_vector[i]->constval.vvec, &v, sizeof(v)))
230 return parser->imm_vector[i];
232 out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_VECTOR);
234 out->constval.vvec = v;
235 if (!parser_t_imm_vector_add(parser, out)) {
236 ast_value_delete(out);
242 ast_value* parser_const_vector_f(parser_t *parser, float x, float y, float z)
248 return parser_const_vector(parser, v);
251 ast_value* parser_const_vector_0(parser_t *parser)
253 if (!parser->imm_vector_zero)
254 parser->imm_vector_zero = parser_const_vector_f(parser, 0, 0, 0);
255 return parser->imm_vector_zero;
258 ast_expression* parser_find_field(parser_t *parser, const char *name)
261 for (i = 0; i < parser->fields_count; ++i) {
262 if (!strcmp(parser->fields[i].name, name))
263 return parser->fields[i].var;
268 ast_expression* parser_find_global(parser_t *parser, const char *name)
271 for (i = 0; i < parser->globals_count; ++i) {
272 if (!strcmp(parser->globals[i].name, name))
273 return parser->globals[i].var;
278 ast_expression* parser_find_param(parser_t *parser, const char *name)
282 if (!parser->function)
284 fun = parser->function->vtype;
285 for (i = 0; i < fun->expression.params_count; ++i) {
286 if (!strcmp(fun->expression.params[i]->name, name))
287 return (ast_expression*)(fun->expression.params[i]);
292 ast_expression* parser_find_local(parser_t *parser, const char *name, size_t upto, bool *isparam)
296 for (i = parser->locals_count; i > upto;) {
298 if (!strcmp(parser->locals[i].name, name))
299 return parser->locals[i].var;
302 return parser_find_param(parser, name);
305 ast_expression* parser_find_var(parser_t *parser, const char *name)
309 v = parser_find_local(parser, name, 0, &dummy);
310 if (!v) v = parser_find_global(parser, name);
315 MEM_VECTOR_MAKE(ast_value*, p);
317 MEM_VEC_FUNCTIONS(paramlist_t, ast_value*, p)
319 static ast_value *parser_parse_type(parser_t *parser, int basetype, bool *isfunc)
323 lex_ctx ctx = parser_ctx(parser);
324 int vtype = basetype;
327 bool variadic = false;
329 MEM_VECTOR_INIT(¶ms, p);
333 if (parser->tok == '(') {
338 bool isfield = false;
339 bool isfuncparam = false;
341 if (!parser_next(parser))
344 if (parser->tok == ')')
347 if (parser->tok == '.') {
349 if (!parser_next(parser)) {
350 parseerror(parser, "expected field parameter type");
355 if (parser->tok == TOKEN_DOTS) {
358 if (!parser_next(parser))
360 if (parser->tok != ')') {
361 parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
364 if (opts_standard == COMPILER_QCC) {
365 if (parsewarning(parser, WARN_EXTENSIONS, "variadic functions are not available in this standard"))
371 temptype = parser_token(parser)->constval.t;
372 if (!parser_next(parser))
375 param = parser_parse_type(parser, temptype, &isfuncparam);
380 if (parser->tok == TOKEN_IDENT) {
381 /* named parameter */
382 if (!ast_value_set_name(param, parser_tokval(parser)))
384 if (!parser_next(parser))
388 /* This comes before the isfield part! */
390 ast_value *fval = ast_value_new(ast_ctx(param), param->name, TYPE_FUNCTION);
395 fval->expression.next = (ast_expression*)param;
396 MEM_VECTOR_MOVE(¶m->expression, params, &fval->expression, params);
397 fval->expression.variadic = param->expression.variadic;
402 fld = ast_value_new(ctx, param->name, TYPE_FIELD);
403 fld->expression.next = (ast_expression*)param;
407 if (!paramlist_t_p_add(¶ms, param)) {
408 parseerror(parser, "Out of memory while parsing typename");
412 if (parser->tok == ',')
414 if (parser->tok == ')')
416 parseerror(parser, "Unexpected token");
419 if (!parser_next(parser))
423 var = ast_value_new(ctx, "<unnamed>", vtype);
426 var->expression.variadic = variadic;
427 MEM_VECTOR_MOVE(¶ms, p, &var->expression, params);
430 for (i = 0; i < params.p_count; ++i)
431 ast_value_delete(params.p[i]);
432 MEM_VECTOR_CLEAR(¶ms, p);
438 size_t etype; /* 0 = expression, others are operators */
442 ast_block *block; /* for commas and function calls */
447 MEM_VECTOR_MAKE(sy_elem, out);
448 MEM_VECTOR_MAKE(sy_elem, ops);
450 MEM_VEC_FUNCTIONS(shunt, sy_elem, out)
451 MEM_VEC_FUNCTIONS(shunt, sy_elem, ops)
453 static sy_elem syexp(lex_ctx ctx, ast_expression *v) {
463 static sy_elem syblock(lex_ctx ctx, ast_block *v) {
466 e.out = (ast_expression*)v;
473 static sy_elem syop(lex_ctx ctx, const oper_info *op) {
475 e.etype = 1 + (op - operators);
483 static sy_elem syparen(lex_ctx ctx, int p, size_t off) {
495 # define DEBUGSHUNTDO(x) x
497 # define DEBUGSHUNTDO(x)
500 static bool parser_sy_pop(parser_t *parser, shunt *sy)
504 ast_expression *out = NULL;
505 ast_expression *exprs[3];
506 ast_block *blocks[3];
507 ast_value *asvalue[3];
509 qcint generated_op = 0;
511 if (!sy->ops_count) {
512 parseerror(parser, "internal error: missing operator");
516 if (sy->ops[sy->ops_count-1].paren) {
517 parseerror(parser, "unmatched parenthesis");
521 op = &operators[sy->ops[sy->ops_count-1].etype - 1];
522 ctx = sy->ops[sy->ops_count-1].ctx;
524 DEBUGSHUNTDO(printf("apply %s\n", op->op));
526 if (sy->out_count < op->operands) {
527 parseerror(parser, "internal error: not enough operands: %i (operator %s (%i))", sy->out_count,
528 op->op, (int)op->id);
534 sy->out_count -= op->operands;
535 for (i = 0; i < op->operands; ++i) {
536 exprs[i] = sy->out[sy->out_count+i].out;
537 blocks[i] = sy->out[sy->out_count+i].block;
538 asvalue[i] = (ast_value*)exprs[i];
541 if (blocks[0] && !blocks[0]->exprs_count && op->id != opid1(',')) {
542 parseerror(parser, "internal error: operator cannot be applied on empty blocks");
546 #define NotSameType(T) \
547 (exprs[0]->expression.vtype != exprs[1]->expression.vtype || \
548 exprs[0]->expression.vtype != T)
549 #define CanConstFold1(A) \
550 (ast_istype((A), ast_value) && ((ast_value*)(A))->isconst)
551 #define CanConstFold(A, B) \
552 (CanConstFold1(A) && CanConstFold1(B))
553 #define ConstV(i) (asvalue[(i)]->constval.vvec)
554 #define ConstF(i) (asvalue[(i)]->constval.vfloat)
555 #define ConstS(i) (asvalue[(i)]->constval.vstring)
559 parseerror(parser, "internal error: unhandled operator: %s (%i)", op->op, (int)op->id);
563 if (exprs[0]->expression.vtype == TYPE_ENTITY) {
564 if (exprs[1]->expression.vtype != TYPE_FIELD) {
565 parseerror(parser, "type error: right hand of member-operand should be an entity-field");
568 out = (ast_expression*)ast_entfield_new(ctx, exprs[0], exprs[1]);
570 else if (exprs[0]->expression.vtype == TYPE_VECTOR) {
571 parseerror(parser, "internal error: vector access is not supposed to be handled at this point");
575 parseerror(parser, "type error: member-of operator on something that is not an entity or vector");
582 if (!ast_block_exprs_add(blocks[0], exprs[1]))
585 blocks[0] = ast_block_new(ctx);
586 if (!ast_block_exprs_add(blocks[0], exprs[0]) ||
587 !ast_block_exprs_add(blocks[0], exprs[1]))
592 if (!ast_block_set_type(blocks[0], exprs[1]))
595 sy->out[sy->out_count++] = syblock(ctx, blocks[0]);
599 switch (exprs[0]->expression.vtype) {
601 if (CanConstFold1(exprs[0]))
602 out = (ast_expression*)parser_const_float(parser, -ConstF(0));
604 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F,
605 (ast_expression*)parser_const_float_0(parser),
609 if (CanConstFold1(exprs[0]))
610 out = (ast_expression*)parser_const_vector_f(parser,
611 -ConstV(0).x, -ConstV(0).y, -ConstV(0).z);
613 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V,
614 (ast_expression*)parser_const_vector_0(parser),
618 parseerror(parser, "invalid types used in expression: cannot negate type %s",
619 type_name[exprs[0]->expression.vtype]);
625 switch (exprs[0]->expression.vtype) {
627 if (CanConstFold1(exprs[0]))
628 out = (ast_expression*)parser_const_float(parser, !ConstF(0));
630 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, exprs[0]);
633 if (CanConstFold1(exprs[0]))
634 out = (ast_expression*)parser_const_float(parser,
635 (!ConstV(0).x && !ConstV(0).y && !ConstV(0).z));
637 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[0]);
640 if (CanConstFold1(exprs[0]))
641 out = (ast_expression*)parser_const_float(parser, !ConstS(0) || !*ConstS(0));
643 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[0]);
645 /* we don't constant-fold NOT for these types */
647 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_ENT, exprs[0]);
650 out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_FNC, exprs[0]);
653 parseerror(parser, "invalid types used in expression: cannot logically negate type %s",
654 type_name[exprs[0]->expression.vtype]);
660 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
661 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
663 parseerror(parser, "invalid types used in expression: cannot add type %s and %s",
664 type_name[exprs[0]->expression.vtype],
665 type_name[exprs[1]->expression.vtype]);
668 switch (exprs[0]->expression.vtype) {
670 if (CanConstFold(exprs[0], exprs[1]))
672 out = (ast_expression*)parser_const_float(parser, ConstF(0) + ConstF(1));
675 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F, exprs[0], exprs[1]);
678 if (CanConstFold(exprs[0], exprs[1]))
679 out = (ast_expression*)parser_const_vector(parser, vec3_add(ConstV(0), ConstV(1)));
681 out = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_V, exprs[0], exprs[1]);
684 parseerror(parser, "invalid types used in expression: cannot add type %s and %s",
685 type_name[exprs[0]->expression.vtype],
686 type_name[exprs[1]->expression.vtype]);
691 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
692 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
694 parseerror(parser, "invalid types used in expression: cannot subtract type %s from %s",
695 type_name[exprs[1]->expression.vtype],
696 type_name[exprs[0]->expression.vtype]);
699 switch (exprs[0]->expression.vtype) {
701 if (CanConstFold(exprs[0], exprs[1]))
702 out = (ast_expression*)parser_const_float(parser, ConstF(0) - ConstF(1));
704 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_F, exprs[0], exprs[1]);
707 if (CanConstFold(exprs[0], exprs[1]))
708 out = (ast_expression*)parser_const_vector(parser, vec3_sub(ConstV(0), ConstV(1)));
710 out = (ast_expression*)ast_binary_new(ctx, INSTR_SUB_V, exprs[0], exprs[1]);
713 parseerror(parser, "invalid types used in expression: cannot subtract type %s from %s",
714 type_name[exprs[1]->expression.vtype],
715 type_name[exprs[0]->expression.vtype]);
720 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype &&
721 exprs[0]->expression.vtype != TYPE_VECTOR &&
722 exprs[0]->expression.vtype != TYPE_FLOAT &&
723 exprs[1]->expression.vtype != TYPE_VECTOR &&
724 exprs[1]->expression.vtype != TYPE_FLOAT)
726 parseerror(parser, "invalid types used in expression: cannot multiply types %s and %s",
727 type_name[exprs[1]->expression.vtype],
728 type_name[exprs[0]->expression.vtype]);
731 switch (exprs[0]->expression.vtype) {
733 if (exprs[1]->expression.vtype == TYPE_VECTOR)
735 if (CanConstFold(exprs[0], exprs[1]))
736 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(1), ConstF(0)));
738 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_FV, exprs[0], exprs[1]);
742 if (CanConstFold(exprs[0], exprs[1]))
743 out = (ast_expression*)parser_const_float(parser, ConstF(0) * ConstF(1));
745 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, exprs[0], exprs[1]);
749 if (exprs[1]->expression.vtype == TYPE_FLOAT)
751 if (CanConstFold(exprs[0], exprs[1]))
752 out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(0), ConstF(1)));
754 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_VF, exprs[0], exprs[1]);
758 if (CanConstFold(exprs[0], exprs[1]))
759 out = (ast_expression*)parser_const_float(parser, vec3_mulvv(ConstV(0), ConstV(1)));
761 out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
765 parseerror(parser, "invalid types used in expression: cannot multiply types %s and %s",
766 type_name[exprs[1]->expression.vtype],
767 type_name[exprs[0]->expression.vtype]);
772 if (NotSameType(TYPE_FLOAT)) {
773 parseerror(parser, "invalid types used in expression: cannot divide types %s and %s",
774 type_name[exprs[0]->expression.vtype],
775 type_name[exprs[1]->expression.vtype]);
778 if (CanConstFold(exprs[0], exprs[1]))
779 out = (ast_expression*)parser_const_float(parser, ConstF(0) / ConstF(1));
781 out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F, exprs[0], exprs[1]);
785 parseerror(parser, "qc does not have a modulo operator");
789 if (NotSameType(TYPE_FLOAT)) {
790 parseerror(parser, "invalid types used in expression: cannot perform bit operations between types %s and %s",
791 type_name[exprs[0]->expression.vtype],
792 type_name[exprs[1]->expression.vtype]);
795 if (CanConstFold(exprs[0], exprs[1]))
796 out = (ast_expression*)parser_const_float(parser,
797 (op->id == opid1('|') ? (float)( ((qcint)ConstF(0)) | ((qcint)ConstF(1)) ) :
798 (float)( ((qcint)ConstF(0)) & ((qcint)ConstF(1)) ) ));
800 out = (ast_expression*)ast_binary_new(ctx,
801 (op->id == opid1('|') ? INSTR_BITOR : INSTR_BITAND),
805 parseerror(parser, "TODO: bitxor");
810 case opid3('<','<','='):
811 case opid3('>','>','='):
812 parseerror(parser, "TODO: shifts");
816 generated_op += 1; /* INSTR_OR */
818 generated_op += INSTR_AND;
819 if (NotSameType(TYPE_FLOAT)) {
820 parseerror(parser, "invalid types used in expression: cannot perform logical operations between types %s and %s",
821 type_name[exprs[0]->expression.vtype],
822 type_name[exprs[1]->expression.vtype]);
823 parseerror(parser, "TODO: logical ops for arbitrary types using INSTR_NOT");
824 parseerror(parser, "TODO: optional early out");
827 if (opts_standard == COMPILER_GMQCC)
828 printf("TODO: early out logic\n");
829 if (CanConstFold(exprs[0], exprs[1]))
830 out = (ast_expression*)parser_const_float(parser,
831 (generated_op == INSTR_OR ? (ConstF(0) || ConstF(1)) : (ConstF(0) && ConstF(1))));
833 out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]);
837 generated_op += 1; /* INSTR_GT */
839 generated_op += 1; /* INSTR_LT */
840 case opid2('>', '='):
841 generated_op += 1; /* INSTR_GE */
842 case opid2('<', '='):
843 generated_op += INSTR_LE;
844 if (NotSameType(TYPE_FLOAT)) {
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, generated_op, exprs[0], exprs[1]);
852 case opid2('!', '='):
853 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) {
854 parseerror(parser, "invalid types used in expression: cannot perform comparison between types %s and %s",
855 type_name[exprs[0]->expression.vtype],
856 type_name[exprs[1]->expression.vtype]);
859 out = (ast_expression*)ast_binary_new(ctx, type_ne_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]);
861 case opid2('=', '='):
862 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) {
863 parseerror(parser, "invalid types used in expression: cannot perform comparison between types %s and %s",
864 type_name[exprs[0]->expression.vtype],
865 type_name[exprs[1]->expression.vtype]);
868 out = (ast_expression*)ast_binary_new(ctx, type_eq_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]);
872 if (ast_istype(exprs[0], ast_entfield))
873 assignop = type_storep_instr[exprs[0]->expression.vtype];
875 assignop = type_store_instr[exprs[0]->expression.vtype];
876 out = (ast_expression*)ast_store_new(ctx, assignop, exprs[0], exprs[1]);
880 if (exprs[0]->expression.vtype != exprs[1]->expression.vtype ||
881 (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) )
883 parseerror(parser, "invalid types used in expression: cannot add or subtract type %s and %s",
884 type_name[exprs[0]->expression.vtype],
885 type_name[exprs[1]->expression.vtype]);
888 if (ast_istype(exprs[0], ast_entfield))
889 assignop = type_storep_instr[exprs[0]->expression.vtype];
891 assignop = type_store_instr[exprs[0]->expression.vtype];
892 switch (exprs[0]->expression.vtype) {
894 out = (ast_expression*)ast_binstore_new(ctx, assignop,
895 (op->id == opid2('+','=') ? INSTR_ADD_F : INSTR_SUB_F),
899 out = (ast_expression*)ast_binstore_new(ctx, assignop,
900 (op->id == opid2('+','=') ? INSTR_ADD_V : INSTR_SUB_V),
904 parseerror(parser, "invalid types used in expression: cannot add or subtract type %s and %s",
905 type_name[exprs[0]->expression.vtype],
906 type_name[exprs[1]->expression.vtype]);
914 parseerror(parser, "failed to apply operand %s", op->op);
918 DEBUGSHUNTDO(printf("applied %s\n", op->op));
919 sy->out[sy->out_count++] = syexp(ctx, out);
923 static bool parser_close_call(parser_t *parser, shunt *sy)
925 /* was a function call */
933 fid = sy->ops[sy->ops_count].off;
935 /* out[fid] is the function
936 * everything above is parameters...
938 * 1 params = ast_expression
942 if (sy->out_count < 1 || sy->out_count <= fid) {
943 parseerror(parser, "internal error: function call needs function and parameter list...");
947 fun = sy->out[fid].out;
949 call = ast_call_new(sy->ops[sy->ops_count].ctx, fun);
951 parseerror(parser, "out of memory");
955 if (fid+1 == sy->out_count) {
958 } else if (fid+2 == sy->out_count) {
961 params = sy->out[sy->out_count].block;
965 if (!ast_call_params_add(call, sy->out[sy->out_count].out)) {
966 ast_delete(sy->out[sy->out_count].out);
967 parseerror(parser, "out of memory");
971 paramcount = params->exprs_count;
972 MEM_VECTOR_MOVE(params, exprs, call, params);
976 parseerror(parser, "invalid function call");
980 /* overwrite fid, the function, with a call */
981 sy->out[fid] = syexp(call->expression.node.context, (ast_expression*)call);
983 if (fun->expression.vtype != TYPE_FUNCTION) {
984 parseerror(parser, "not a function (%s)", type_name[fun->expression.vtype]);
988 if (!fun->expression.next) {
989 parseerror(parser, "could not determine function return type");
992 if (fun->expression.params_count != paramcount &&
993 !(fun->expression.variadic &&
994 fun->expression.params_count < paramcount))
997 const char *fewmany = (fun->expression.params_count > paramcount) ? "few" : "many";
999 fval = (ast_istype(fun, ast_value) ? ((ast_value*)fun) : NULL);
1000 if (opts_standard == COMPILER_GMQCC)
1003 parseerror(parser, "too %s parameters for call to %s: expected %i, got %i", fewmany,
1004 fval->name, (int)fun->expression.params_count, paramcount);
1006 parseerror(parser, "too %s parameters for function call: expected %i, got %i", fewmany,
1007 (int)fun->expression.params_count, paramcount);
1013 return !parsewarning(parser, WARN_TOO_FEW_PARAMETERS,
1014 "too %s parameters for call to %s: expected %i, got %i", fewmany,
1015 fval->name, (int)fun->expression.params_count, paramcount);
1017 return !parsewarning(parser, WARN_TOO_FEW_PARAMETERS,
1018 "too %s parameters for function call: expected %i, got %i", fewmany,
1019 (int)fun->expression.params_count, paramcount);
1027 static bool parser_close_paren(parser_t *parser, shunt *sy, bool functions_only)
1029 if (!sy->ops_count) {
1030 parseerror(parser, "unmatched closing paren");
1033 /* this would for bit a + (x) because there are no operators inside (x)
1034 if (sy->ops[sy->ops_count-1].paren == 1) {
1035 parseerror(parser, "empty parenthesis expression");
1039 while (sy->ops_count) {
1040 if (sy->ops[sy->ops_count-1].paren == 'f') {
1041 if (!parser_close_call(parser, sy))
1045 if (sy->ops[sy->ops_count-1].paren == 1) {
1047 return !functions_only;
1049 if (!parser_sy_pop(parser, sy))
1055 static void parser_reclassify_token(parser_t *parser)
1058 for (i = 0; i < operator_count; ++i) {
1059 if (!strcmp(parser_tokval(parser), operators[i].op)) {
1060 parser->tok = TOKEN_OPERATOR;
1066 static ast_expression* parser_expression_leave(parser_t *parser, bool stopatcomma)
1068 ast_expression *expr = NULL;
1070 bool wantop = false;
1071 bool gotmemberof = false;
1073 /* count the parens because an if starts with one, so the
1074 * end of a condition is an unmatched closing paren
1078 MEM_VECTOR_INIT(&sy, out);
1079 MEM_VECTOR_INIT(&sy, ops);
1081 parser->lex->flags.noops = false;
1083 parser_reclassify_token(parser);
1088 gotmemberof = false;
1090 parser->memberof = 0;
1092 if (parser->tok == TOKEN_IDENT)
1094 ast_expression *var;
1096 parseerror(parser, "expected operator or end of statement");
1101 if (opts_standard == COMPILER_GMQCC)
1103 if (parser->memberof == TYPE_ENTITY) {
1104 /* still get vars first since there could be a fieldpointer */
1105 var = parser_find_var(parser, parser_tokval(parser));
1107 var = parser_find_field(parser, parser_tokval(parser));
1109 else if (parser->memberof == TYPE_VECTOR)
1111 parseerror(parser, "TODO: implement effective vector member access");
1114 else if (parser->memberof) {
1115 parseerror(parser, "namespace for member not found");
1119 var = parser_find_var(parser, parser_tokval(parser));
1121 var = parser_find_var(parser, parser_tokval(parser));
1123 var = parser_find_field(parser, parser_tokval(parser));
1126 parseerror(parser, "unexpected ident: %s", parser_tokval(parser));
1129 if (ast_istype(var, ast_value))
1130 ((ast_value*)var)->uses++;
1131 if (!shunt_out_add(&sy, syexp(parser_ctx(parser), var))) {
1132 parseerror(parser, "out of memory");
1135 DEBUGSHUNTDO(printf("push %s\n", parser_tokval(parser)));
1137 else if (parser->tok == TOKEN_FLOATCONST) {
1140 parseerror(parser, "expected operator or end of statement, got constant");
1144 val = parser_const_float(parser, (parser_token(parser)->constval.f));
1147 if (!shunt_out_add(&sy, syexp(parser_ctx(parser), (ast_expression*)val))) {
1148 parseerror(parser, "out of memory");
1151 DEBUGSHUNTDO(printf("push %g\n", parser_token(parser)->constval.f));
1153 else if (parser->tok == TOKEN_INTCONST) {
1156 parseerror(parser, "expected operator or end of statement, got constant");
1160 val = parser_const_float(parser, (double)(parser_token(parser)->constval.i));
1163 if (!shunt_out_add(&sy, syexp(parser_ctx(parser), (ast_expression*)val))) {
1164 parseerror(parser, "out of memory");
1167 DEBUGSHUNTDO(printf("push %i\n", parser_token(parser)->constval.i));
1169 else if (parser->tok == TOKEN_STRINGCONST) {
1172 parseerror(parser, "expected operator or end of statement, got constant");
1176 val = parser_const_string(parser, parser_tokval(parser));
1179 if (!shunt_out_add(&sy, syexp(parser_ctx(parser), (ast_expression*)val))) {
1180 parseerror(parser, "out of memory");
1183 DEBUGSHUNTDO(printf("push string\n"));
1185 else if (parser->tok == TOKEN_VECTORCONST) {
1188 parseerror(parser, "expected operator or end of statement, got constant");
1192 val = parser_const_vector(parser, parser_token(parser)->constval.v);
1195 if (!shunt_out_add(&sy, syexp(parser_ctx(parser), (ast_expression*)val))) {
1196 parseerror(parser, "out of memory");
1199 DEBUGSHUNTDO(printf("push '%g %g %g'\n",
1200 parser_token(parser)->constval.v.x,
1201 parser_token(parser)->constval.v.y,
1202 parser_token(parser)->constval.v.z));
1204 else if (parser->tok == '(') {
1205 parseerror(parser, "internal error: '(' should be classified as operator");
1208 else if (parser->tok == ')') {
1210 DEBUGSHUNTDO(printf("do[op] )\n"));
1214 /* we do expect an operator next */
1215 /* closing an opening paren */
1216 if (!parser_close_paren(parser, &sy, false))
1219 DEBUGSHUNTDO(printf("do[nop] )\n"));
1223 /* allowed for function calls */
1224 if (!parser_close_paren(parser, &sy, true))
1229 else if (parser->tok != TOKEN_OPERATOR) {
1231 parseerror(parser, "expected operator or end of statement");
1238 /* classify the operator */
1239 /* TODO: suffix operators */
1240 const oper_info *op;
1241 const oper_info *olast = NULL;
1243 for (o = 0; o < operator_count; ++o) {
1244 if ((!(operators[o].flags & OP_PREFIX) == wantop) &&
1245 !(operators[o].flags & OP_SUFFIX) && /* remove this */
1246 !strcmp(parser_tokval(parser), operators[o].op))
1251 if (o == operator_count) {
1252 /* no operator found... must be the end of the statement */
1255 /* found an operator */
1258 /* when declaring variables, a comma starts a new variable */
1259 if (op->id == opid1(',') && !parens && stopatcomma) {
1260 /* fixup the token */
1265 if (sy.ops_count && !sy.ops[sy.ops_count-1].paren)
1266 olast = &operators[sy.ops[sy.ops_count-1].etype-1];
1269 (op->prec < olast->prec) ||
1270 (op->assoc == ASSOC_LEFT && op->prec <= olast->prec) ) )
1272 if (!parser_sy_pop(parser, &sy))
1274 if (sy.ops_count && !sy.ops[sy.ops_count-1].paren)
1275 olast = &operators[sy.ops[sy.ops_count-1].etype-1];
1280 if (op->id == opid1('.') && opts_standard == COMPILER_GMQCC) {
1281 /* for gmqcc standard: open up the namespace of the previous type */
1282 ast_expression *prevex = sy.out[sy.out_count-1].out;
1284 parseerror(parser, "unexpected member operator");
1287 if (prevex->expression.vtype == TYPE_ENTITY)
1288 parser->memberof = TYPE_ENTITY;
1289 else if (prevex->expression.vtype == TYPE_VECTOR)
1290 parser->memberof = TYPE_VECTOR;
1292 parseerror(parser, "type error: type has no members");
1298 if (op->id == opid1('(')) {
1300 DEBUGSHUNTDO(printf("push [op] (\n"));
1302 /* we expected an operator, this is the function-call operator */
1303 if (!shunt_ops_add(&sy, syparen(parser_ctx(parser), 'f', sy.out_count-1))) {
1304 parseerror(parser, "out of memory");
1309 if (!shunt_ops_add(&sy, syparen(parser_ctx(parser), 1, 0))) {
1310 parseerror(parser, "out of memory");
1313 DEBUGSHUNTDO(printf("push [nop] (\n"));
1317 DEBUGSHUNTDO(printf("push operator %s\n", op->op));
1318 if (!shunt_ops_add(&sy, syop(parser_ctx(parser), op)))
1323 if (!parser_next(parser)) {
1326 if (parser->tok == ';' || parser->tok == ']') {
1331 while (sy.ops_count) {
1332 if (!parser_sy_pop(parser, &sy))
1336 parser->lex->flags.noops = true;
1337 if (!sy.out_count) {
1338 parseerror(parser, "empty expression");
1341 expr = sy.out[0].out;
1342 MEM_VECTOR_CLEAR(&sy, out);
1343 MEM_VECTOR_CLEAR(&sy, ops);
1344 DEBUGSHUNTDO(printf("shunt done\n"));
1348 parser->lex->flags.noops = true;
1349 MEM_VECTOR_CLEAR(&sy, out);
1350 MEM_VECTOR_CLEAR(&sy, ops);
1354 static ast_expression* parser_expression(parser_t *parser, bool stopatcomma)
1356 ast_expression *e = parser_expression_leave(parser, stopatcomma);
1359 if (!parser_next(parser)) {
1366 static bool parser_parse_if(parser_t *parser, ast_block *block, ast_expression **out)
1369 ast_expression *cond, *ontrue, *onfalse = NULL;
1371 lex_ctx ctx = parser_ctx(parser);
1373 /* skip the 'if' and check for opening paren */
1374 if (!parser_next(parser) || parser->tok != '(') {
1375 parseerror(parser, "expected 'if' condition in parenthesis");
1378 /* parse into the expression */
1379 if (!parser_next(parser)) {
1380 parseerror(parser, "expected 'if' condition after opening paren");
1383 /* parse the condition */
1384 cond = parser_expression_leave(parser, false);
1388 if (parser->tok != ')') {
1389 parseerror(parser, "expected closing paren after 'if' condition");
1393 /* parse into the 'then' branch */
1394 if (!parser_next(parser)) {
1395 parseerror(parser, "expected statement for on-true branch of 'if'");
1399 ontrue = parser_parse_statement_or_block(parser);
1404 /* check for an else */
1405 if (!strcmp(parser_tokval(parser), "else")) {
1406 /* parse into the 'else' branch */
1407 if (!parser_next(parser)) {
1408 parseerror(parser, "expected on-false branch after 'else'");
1413 onfalse = parser_parse_statement_or_block(parser);
1421 ifthen = ast_ifthen_new(ctx, cond, ontrue, onfalse);
1422 *out = (ast_expression*)ifthen;
1426 static bool parser_parse_while(parser_t *parser, ast_block *block, ast_expression **out)
1429 ast_expression *cond, *ontrue;
1431 lex_ctx ctx = parser_ctx(parser);
1433 /* skip the 'while' and check for opening paren */
1434 if (!parser_next(parser) || parser->tok != '(') {
1435 parseerror(parser, "expected 'while' condition in parenthesis");
1438 /* parse into the expression */
1439 if (!parser_next(parser)) {
1440 parseerror(parser, "expected 'while' condition after opening paren");
1443 /* parse the condition */
1444 cond = parser_expression_leave(parser, false);
1448 if (parser->tok != ')') {
1449 parseerror(parser, "expected closing paren after 'while' condition");
1453 /* parse into the 'then' branch */
1454 if (!parser_next(parser)) {
1455 parseerror(parser, "expected while-loop body");
1459 ontrue = parser_parse_statement_or_block(parser);
1465 aloop = ast_loop_new(ctx, NULL, cond, NULL, NULL, ontrue);
1466 *out = (ast_expression*)aloop;
1470 static bool parser_parse_dowhile(parser_t *parser, ast_block *block, ast_expression **out)
1473 ast_expression *cond, *ontrue;
1475 lex_ctx ctx = parser_ctx(parser);
1477 /* skip the 'do' and get the body */
1478 if (!parser_next(parser)) {
1479 parseerror(parser, "expected loop body");
1482 ontrue = parser_parse_statement_or_block(parser);
1486 /* expect the "while" */
1487 if (parser->tok != TOKEN_KEYWORD ||
1488 strcmp(parser_tokval(parser), "while"))
1490 parseerror(parser, "expected 'while' and condition");
1495 /* skip the 'while' and check for opening paren */
1496 if (!parser_next(parser) || parser->tok != '(') {
1497 parseerror(parser, "expected 'while' condition in parenthesis");
1501 /* parse into the expression */
1502 if (!parser_next(parser)) {
1503 parseerror(parser, "expected 'while' condition after opening paren");
1507 /* parse the condition */
1508 cond = parser_expression_leave(parser, false);
1512 if (parser->tok != ')') {
1513 parseerror(parser, "expected closing paren after 'while' condition");
1519 if (!parser_next(parser) || parser->tok != ';') {
1520 parseerror(parser, "expected semicolon after condition");
1526 if (!parser_next(parser)) {
1527 parseerror(parser, "parse error");
1533 aloop = ast_loop_new(ctx, NULL, NULL, cond, NULL, ontrue);
1534 *out = (ast_expression*)aloop;
1538 static bool parser_parse_for(parser_t *parser, ast_block *block, ast_expression **out)
1541 ast_expression *initexpr, *cond, *increment, *ontrue;
1542 size_t oldblocklocal;
1545 lex_ctx ctx = parser_ctx(parser);
1547 oldblocklocal = parser->blocklocal;
1548 parser->blocklocal = parser->locals_count;
1555 /* skip the 'while' and check for opening paren */
1556 if (!parser_next(parser) || parser->tok != '(') {
1557 parseerror(parser, "expected 'for' expressions in parenthesis");
1560 /* parse into the expression */
1561 if (!parser_next(parser)) {
1562 parseerror(parser, "expected 'for' initializer after opening paren");
1566 if (parser->tok == TOKEN_TYPENAME) {
1567 if (opts_standard != COMPILER_GMQCC) {
1568 if (parsewarning(parser, WARN_EXTENSIONS,
1569 "current standard does not allow variable declarations in for-loop initializers"))
1573 parseerror(parser, "TODO: assignment of new variables to be non-const");
1575 if (!parser_variable(parser, block))
1578 else if (parser->tok != ';')
1580 initexpr = parser_expression_leave(parser, false);
1585 /* move on to condition */
1586 if (parser->tok != ';') {
1587 parseerror(parser, "expected semicolon after for-loop initializer");
1590 if (!parser_next(parser)) {
1591 parseerror(parser, "expected for-loop condition");
1595 /* parse the condition */
1596 if (parser->tok != ';') {
1597 cond = parser_expression_leave(parser, false);
1602 /* move on to incrementor */
1603 if (parser->tok != ';') {
1604 parseerror(parser, "expected semicolon after for-loop initializer");
1607 if (!parser_next(parser)) {
1608 parseerror(parser, "expected for-loop condition");
1612 /* parse the incrementor */
1613 if (parser->tok != ')') {
1614 increment = parser_expression_leave(parser, false);
1620 if (parser->tok != ')') {
1621 parseerror(parser, "expected closing paren after 'for-loop' incrementor");
1624 /* parse into the 'then' branch */
1625 if (!parser_next(parser)) {
1626 parseerror(parser, "expected for-loop body");
1629 ontrue = parser_parse_statement_or_block(parser);
1634 aloop = ast_loop_new(ctx, initexpr, cond, NULL, increment, ontrue);
1635 *out = (ast_expression*)aloop;
1637 while (parser->locals_count > parser->blocklocal)
1638 retval = retval && parser_pop_local(parser);
1639 parser->blocklocal = oldblocklocal;
1642 if (initexpr) ast_delete(initexpr);
1643 if (cond) ast_delete(cond);
1644 if (increment) ast_delete(increment);
1645 while (parser->locals_count > parser->blocklocal)
1646 (void)!parser_pop_local(parser);
1647 parser->blocklocal = oldblocklocal;
1651 static bool parser_parse_statement(parser_t *parser, ast_block *block, ast_expression **out)
1653 if (parser->tok == TOKEN_TYPENAME)
1655 /* local variable */
1657 parseerror(parser, "cannot declare a variable from here");
1660 if (opts_standard == COMPILER_QCC) {
1661 if (parsewarning(parser, WARN_EXTENSIONS, "missing 'local' keyword when declaring a local variable"))
1664 if (!parser_variable(parser, block))
1669 else if (parser->tok == TOKEN_KEYWORD)
1671 if (!strcmp(parser_tokval(parser), "local"))
1674 parseerror(parser, "cannot declare a local variable here");
1677 if (!parser_next(parser)) {
1678 parseerror(parser, "expected variable declaration");
1681 if (!parser_variable(parser, block))
1686 else if (!strcmp(parser_tokval(parser), "return"))
1688 ast_expression *exp = NULL;
1689 ast_return *ret = NULL;
1690 ast_value *expected = parser->function->vtype;
1692 if (!parser_next(parser)) {
1693 parseerror(parser, "expected return expression");
1697 if (parser->tok != ';') {
1698 exp = parser_expression(parser, false);
1702 if (exp->expression.vtype != expected->expression.next->expression.vtype) {
1703 parseerror(parser, "return with invalid expression");
1706 ret = ast_return_new(exp->expression.node.context, exp);
1712 if (!parser_next(parser))
1713 parseerror(parser, "parse error");
1714 if (expected->expression.next->expression.vtype != TYPE_VOID) {
1715 if (opts_standard != COMPILER_GMQCC)
1716 (void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value");
1718 parseerror(parser, "return without value");
1720 ret = ast_return_new(parser_ctx(parser), NULL);
1722 *out = (ast_expression*)ret;
1725 else if (!strcmp(parser_tokval(parser), "if"))
1727 return parser_parse_if(parser, block, out);
1729 else if (!strcmp(parser_tokval(parser), "while"))
1731 return parser_parse_while(parser, block, out);
1733 else if (!strcmp(parser_tokval(parser), "do"))
1735 return parser_parse_dowhile(parser, block, out);
1737 else if (!strcmp(parser_tokval(parser), "for"))
1739 if (opts_standard == COMPILER_QCC) {
1740 if (parsewarning(parser, WARN_EXTENSIONS, "for loops are not recognized in the original Quake C standard, to enable try an alternate standard --std=?"))
1743 return parser_parse_for(parser, block, out);
1745 parseerror(parser, "Unexpected keyword");
1748 else if (parser->tok == '{')
1751 inner = parser_parse_block(parser, false);
1754 *out = (ast_expression*)inner;
1759 ast_expression *exp = parser_expression(parser, false);
1767 static bool GMQCC_WARN parser_pop_local(parser_t *parser)
1770 parser->locals_count--;
1772 ve = &parser->locals[parser->locals_count];
1773 if (ast_istype(ve->var, ast_value) && !(((ast_value*)(ve->var))->uses)) {
1774 if (parsewarning(parser, WARN_UNUSED_VARIABLE, "unused variable: `%s`", ve->name))
1777 mem_d(parser->locals[parser->locals_count].name);
1781 static bool parser_parse_block_into(parser_t *parser, ast_block *block, bool warnreturn)
1783 size_t oldblocklocal;
1786 oldblocklocal = parser->blocklocal;
1787 parser->blocklocal = parser->locals_count;
1789 if (!parser_next(parser)) { /* skip the '{' */
1790 parseerror(parser, "expected function body");
1794 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
1796 ast_expression *expr;
1797 if (parser->tok == '}')
1800 if (!parser_parse_statement(parser, block, &expr)) {
1801 parseerror(parser, "parse error");
1807 if (!ast_block_exprs_add(block, expr)) {
1814 if (parser->tok != '}') {
1817 if (warnreturn && parser->function->vtype->expression.next->expression.vtype != TYPE_VOID)
1819 if (!block->exprs_count ||
1820 !ast_istype(block->exprs[block->exprs_count-1], ast_return))
1822 if (parsewarning(parser, WARN_MISSING_RETURN_VALUES, "control reaches end of non-void function")) {
1828 (void)parser_next(parser);
1832 while (parser->locals_count > parser->blocklocal)
1833 retval = retval && parser_pop_local(parser);
1834 parser->blocklocal = oldblocklocal;
1838 static ast_block* parser_parse_block(parser_t *parser, bool warnreturn)
1841 block = ast_block_new(parser_ctx(parser));
1844 if (!parser_parse_block_into(parser, block, warnreturn)) {
1845 ast_block_delete(block);
1851 static ast_expression* parser_parse_statement_or_block(parser_t *parser)
1853 ast_expression *expr = NULL;
1854 if (parser->tok == '{')
1855 return (ast_expression*)parser_parse_block(parser, false);
1856 if (!parser_parse_statement(parser, NULL, &expr))
1861 static bool create_vector_members(parser_t *parser, ast_value *var,
1862 varentry_t *vx, varentry_t *vy, varentry_t *vz)
1864 size_t len = strlen(var->name);
1865 vx->var = (ast_expression*)ast_member_new(ast_ctx(var), (ast_expression*)var, 0);
1867 parseerror(parser, "failed to create vector members (out of memory)");
1871 vy->var = (ast_expression*)ast_member_new(ast_ctx(var), (ast_expression*)var, 1);
1873 ast_delete(vx->var);
1874 parseerror(parser, "failed to create vector members (out of memory)");
1878 vz->var = (ast_expression*)ast_member_new(ast_ctx(var), (ast_expression*)var, 2);
1880 ast_delete(vy->var);
1881 ast_delete(vx->var);
1882 parseerror(parser, "failed to create vector members (out of memory)");
1886 if ( !(vx->name = (char*)mem_a(len+3)) ) {
1887 ast_delete(vz->var);
1888 ast_delete(vy->var);
1889 ast_delete(vx->var);
1890 parseerror(parser, "failed to create vector members (out of memory)");
1893 if ( !(vy->name = (char*)mem_a(len+3)) ) {
1895 ast_delete(vz->var);
1896 ast_delete(vy->var);
1897 ast_delete(vx->var);
1898 parseerror(parser, "failed to create vector members (out of memory)");
1901 if ( !(vz->name = (char*)mem_a(len+3)) ) {
1904 ast_delete(vz->var);
1905 ast_delete(vy->var);
1906 ast_delete(vx->var);
1907 parseerror(parser, "failed to create vector members (out of memory)");
1911 memcpy(vx->name, var->name, len);
1912 memcpy(vy->name, var->name, len);
1913 memcpy(vz->name, var->name, len);
1914 vx->name[len] = vy->name[len] = vz->name[len] = '_';
1915 vx->name[len+1] = 'x';
1916 vy->name[len+1] = 'y';
1917 vz->name[len+1] = 'z';
1918 vx->name[len+2] = vy->name[len+2] = vz->name[len+2] = 0;
1922 static bool parser_variable(parser_t *parser, ast_block *localblock)
1924 bool isfunc = false;
1928 ast_expression *olddecl;
1937 int basetype = parser_token(parser)->constval.t;
1939 if (!parser_next(parser)) {
1940 parseerror(parser, "expected variable definition");
1944 typevar = parser_parse_type(parser, basetype, &isfunc);
1954 ctx = parser_ctx(parser);
1955 var = ast_value_copy(typevar);
1958 ast_delete(typevar);
1959 parseerror(parser, "failed to create variable");
1963 if (parser->tok != TOKEN_IDENT) {
1964 parseerror(parser, "expected variable name");
1965 ast_value_delete(typevar);
1966 ast_value_delete(var);
1971 if (!localblock && (olddecl = parser_find_global(parser, parser_tokval(parser)))) {
1972 ast_value_delete(typevar);
1973 ast_value_delete(var);
1974 parseerror(parser, "global `%s` already declared here: %s:%i",
1975 parser_tokval(parser), ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
1980 olddecl = parser_find_local(parser, parser_tokval(parser), parser->blocklocal, &isparam);
1981 if (opts_standard == COMPILER_GMQCC)
1986 ast_value_delete(typevar);
1987 ast_value_delete(var);
1988 parseerror(parser, "local `%s` already declared here: %s:%i",
1989 parser_tokval(parser), ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
1994 if( (!isparam && olddecl) || (olddecl = parser_find_local(parser, parser_tokval(parser), 0, &isparam)) )
1996 if (parsewarning(parser, WARN_LOCAL_SHADOWS,
1997 "local `%s` is shadowing a parameter", parser_tokval(parser)))
1999 ast_value_delete(typevar);
2000 ast_value_delete(var);
2001 parseerror(parser, "local `%s` already declared here: %s:%i",
2002 parser_tokval(parser), ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
2011 ast_value_delete(var);
2013 parsewarning(parser, WARN_LOCAL_SHADOWS,
2014 "a parameter is shadowing local `%s`", parser_tokval(parser)))
2016 ast_value_delete(typevar);
2017 ast_value_delete(var);
2022 parseerror(parser, "local `%s` already declared here: %s:%i",
2023 parser_tokval(parser), ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line);
2024 ast_value_delete(typevar);
2025 ast_value_delete(var);
2034 if (!ast_value_set_name(var, parser_tokval(parser))) {
2035 parseerror(parser, "failed to set variable name\n");
2036 ast_value_delete(typevar);
2037 ast_value_delete(var);
2042 /* a function was defined */
2044 ast_value *proto = NULL;
2048 olddecl = parser_find_global(parser, parser_tokval(parser));
2050 olddecl = parser_find_local(parser, parser_tokval(parser), parser->blocklocal, &dummy);
2053 /* we had a prototype */
2054 if (!ast_istype(olddecl, ast_value)) {
2055 /* theoretically not possible you think?
2061 parseerror(parser, "cannot declare a function with the same name as a vector's member: %s",
2062 parser_tokval(parser));
2063 ast_value_delete(var);
2067 proto = (ast_value*)olddecl;
2070 /* turn var into a value of TYPE_FUNCTION, with the old var
2073 fval = ast_value_new(ctx, var->name, TYPE_FUNCTION);
2075 ast_value_delete(var);
2076 ast_value_delete(typevar);
2077 if (fval) ast_value_delete(fval);
2081 fval->expression.next = (ast_expression*)var;
2082 MEM_VECTOR_MOVE(&var->expression, params, &fval->expression, params);
2083 fval->expression.variadic = var->expression.variadic;
2085 /* we compare the type late here, but it's easier than
2086 * messing with the parameter-vector etc. earlier
2090 if (!ast_compare_type((ast_expression*)proto, (ast_expression*)fval)) {
2091 parseerror(parser, "conflicting types for `%s`, previous declaration was here: %s:%i",
2093 ast_ctx(proto).file, ast_ctx(proto).line);
2094 ast_value_delete(fval);
2095 ast_value_delete(typevar);
2098 /* copy over the parameter names */
2099 for (param = 0; param < fval->expression.params_count; ++param)
2100 ast_value_set_name(proto->expression.params[param], fval->expression.params[param]->name);
2101 /* copy the new context */
2102 ast_ctx(proto) = ast_ctx(fval);
2104 /* now ditch the rest of the new data */
2105 ast_value_delete(fval);
2114 varent.name = util_strdup(var->name);
2115 varent.var = (ast_expression*)var;
2116 if (var->expression.vtype == TYPE_VECTOR)
2118 varentry_t vx, vy, vz;
2119 if (!create_vector_members(parser, var, &vx, &vy, &vz)) {
2121 ast_value_delete(typevar);
2126 (void)!parser_t_globals_add(parser, varent);
2127 (void)!parser_t_globals_add(parser, vx);
2128 (void)!parser_t_globals_add(parser, vy);
2129 (void)!parser_t_globals_add(parser, vz);
2131 (void)!parser_t_locals_add(parser, varent);
2132 (void)!parser_t_locals_add(parser, vx);
2133 (void)!parser_t_locals_add(parser, vy);
2134 (void)!parser_t_locals_add(parser, vz);
2135 if (!ast_block_locals_add(localblock, var) ||
2136 !ast_block_collect(localblock, vx.var) ||
2137 !ast_block_collect(localblock, vy.var) ||
2138 !ast_block_collect(localblock, vz.var))
2140 (void)!parser_pop_local(parser);
2141 (void)!parser_pop_local(parser);
2142 (void)!parser_pop_local(parser);
2143 (void)!parser_pop_local(parser);
2144 ast_value_delete(var);
2145 ast_value_delete(typevar);
2152 if ( (!localblock && !parser_t_globals_add(parser, varent)) ||
2153 ( localblock && !parser_t_locals_add(parser, varent)) )
2155 ast_value_delete(var);
2156 ast_value_delete(typevar);
2159 if (localblock && !ast_block_locals_add(localblock, var))
2161 (void)!parser_pop_local(parser);
2162 ast_value_delete(var);
2163 ast_value_delete(typevar);
2170 if (!parser_next(parser)) {
2171 ast_value_delete(typevar);
2172 ast_value_delete(var);
2176 if (parser->tok == ';') {
2177 ast_value_delete(typevar);
2178 if (!parser_next(parser))
2183 if (parser->tok == ',') {
2185 if (!parser_next(parser)) {
2186 ast_delete(typevar);
2192 if (localblock && opts_standard == COMPILER_QCC) {
2193 if (parsewarning(parser, WARN_LOCAL_CONSTANTS,
2194 "initializing expression turns variable `%s` into a constant in this standard",
2197 ast_value_delete(typevar);
2202 if (parser->tok != '=') {
2203 ast_value_delete(typevar);
2204 parseerror(parser, "expected '=' or ';'");
2208 if (!parser_next(parser)) {
2209 ast_value_delete(typevar);
2213 if (parser->tok == '#') {
2217 parseerror(parser, "cannot declare builtins within functions");
2218 ast_value_delete(typevar);
2222 parseerror(parser, "unexpected builtin number, '%s' is not a function", var->name);
2223 ast_value_delete(typevar);
2226 if (!parser_next(parser)) {
2227 parseerror(parser, "expected builtin number");
2228 ast_value_delete(typevar);
2231 if (parser->tok != TOKEN_INTCONST) {
2232 parseerror(parser, "builtin number must be an integer constant");
2233 ast_value_delete(typevar);
2236 if (parser_token(parser)->constval.i <= 0) {
2237 parseerror(parser, "builtin number must be positive integer greater than zero");
2238 ast_value_delete(typevar);
2242 func = ast_function_new(ast_ctx(var), var->name, var);
2244 parseerror(parser, "failed to allocate function for `%s`", var->name);
2245 ast_value_delete(typevar);
2248 if (!parser_t_functions_add(parser, func)) {
2249 parseerror(parser, "failed to allocate slot for function `%s`", var->name);
2250 ast_function_delete(func);
2251 var->constval.vfunc = NULL;
2252 ast_value_delete(typevar);
2256 func->builtin = -parser_token(parser)->constval.i;
2258 if (!parser_next(parser)) {
2259 ast_value_delete(typevar);
2262 } else if (parser->tok == '{' || parser->tok == '[') {
2269 ast_expression *fld_think, *fld_nextthink, *fld_frame;
2270 ast_expression *gbl_time, *gbl_self;
2271 ast_expression *framenum, *nextthink;
2272 bool has_frame_think;
2274 has_frame_think = false;
2275 old = parser->function;
2277 if (var->expression.variadic) {
2278 if (parsewarning(parser, WARN_VARIADIC_FUNCTION,
2279 "variadic function with implementation will not be able to access additional parameters"))
2281 ast_value_delete(typevar);
2287 parseerror(parser, "cannot declare functions within functions");
2288 ast_value_delete(typevar);
2292 if (parser->tok == '[') {
2293 /* got a frame definition: [ framenum, nextthink ]
2294 * this translates to:
2295 * self.frame = framenum;
2296 * self.nextthink = time + 0.1;
2297 * self.think = nextthink;
2301 fld_think = parser_find_field(parser, "think");
2302 fld_nextthink = parser_find_field(parser, "nextthink");
2303 fld_frame = parser_find_field(parser, "frame");
2304 if (!fld_think || !fld_nextthink || !fld_frame) {
2305 parseerror(parser, "cannot use [frame,think] notation without the required fields");
2306 parseerror(parser, "please declare the following entityfields: `frame`, `think`, `nextthink`");
2307 ast_value_delete(typevar);
2310 gbl_time = parser_find_global(parser, "time");
2311 gbl_self = parser_find_global(parser, "self");
2312 if (!gbl_time || !gbl_self) {
2313 parseerror(parser, "cannot use [frame,think] notation without the required globals");
2314 parseerror(parser, "please declare the following globals: `time`, `self`");
2315 ast_value_delete(typevar);
2319 if (!parser_next(parser)) {
2320 ast_value_delete(typevar);
2324 framenum = parser_expression_leave(parser, true);
2326 parseerror(parser, "expected a framenumber constant in[frame,think] notation");
2327 ast_value_delete(typevar);
2330 if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->isconst) {
2331 ast_unref(framenum);
2332 parseerror(parser, "framenumber in [frame,think] notation must be a constant");
2335 if (parser->tok != ',') {
2336 ast_unref(framenum);
2337 parseerror(parser, "expected comma after frame number in [frame,think] notation");
2338 parseerror(parser, "Got a %i\n", parser->tok);
2339 ast_value_delete(typevar);
2343 if (!parser_next(parser)) {
2344 ast_unref(framenum);
2345 ast_value_delete(typevar);
2349 if (parser->tok == TOKEN_IDENT && !parser_find_var(parser, parser_tokval(parser)))
2351 /* qc allows the use of not-yet-declared functions here
2352 * - this automatically creates a prototype */
2354 ast_value *thinkfunc;
2355 ast_expression *functype = fld_think->expression.next;
2357 thinkfunc = ast_value_new(parser_ctx(parser), parser_tokval(parser), functype->expression.vtype);
2358 if (!thinkfunc || !ast_type_adopt(thinkfunc, functype)) {
2359 ast_unref(framenum);
2360 parseerror(parser, "failed to create implicit prototype for `%s`", parser_tokval(parser));
2361 ast_value_delete(typevar);
2365 if (!parser_next(parser)) {
2366 ast_unref(framenum);
2367 ast_value_delete(typevar);
2371 varent.var = (ast_expression*)thinkfunc;
2372 varent.name = util_strdup(thinkfunc->name);
2373 (void)!parser_t_globals_add(parser, varent);
2374 nextthink = (ast_expression*)thinkfunc;
2377 nextthink = parser_expression_leave(parser, true);
2379 ast_unref(framenum);
2380 parseerror(parser, "expected a think-function in [frame,think] notation");
2381 ast_value_delete(typevar);
2386 if (!ast_istype(nextthink, ast_value)) {
2387 ast_unref(nextthink);
2388 ast_unref(framenum);
2389 parseerror(parser, "think-function in [frame,think] notation must be a constant");
2392 if (parser->tok != ']') {
2393 parseerror(parser, "expected closing `]` for [frame,think] notation");
2394 ast_unref(nextthink);
2395 ast_unref(framenum);
2396 ast_value_delete(typevar);
2400 if (!parser_next(parser)) {
2401 ast_unref(nextthink);
2402 ast_unref(framenum);
2403 ast_value_delete(typevar);
2407 if (parser->tok != '{') {
2408 parseerror(parser, "a function body has to be declared after a [frame,think] declaration");
2409 ast_unref(nextthink);
2410 ast_unref(framenum);
2411 ast_value_delete(typevar);
2415 has_frame_think = true;
2418 block = ast_block_new(parser_ctx(parser));
2420 parseerror(parser, "failed to allocate block");
2421 ast_value_delete(typevar);
2425 if (has_frame_think) {
2427 ast_expression *self_frame;
2428 ast_expression *self_nextthink;
2429 ast_expression *self_think;
2430 ast_expression *time_plus_1;
2431 ast_store *store_frame;
2432 ast_store *store_nextthink;
2433 ast_store *store_think;
2435 ctx = parser_ctx(parser);
2436 self_frame = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_frame);
2437 self_nextthink = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_nextthink);
2438 self_think = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_think);
2440 time_plus_1 = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F,
2441 gbl_time, (ast_expression*)parser_const_float(parser, 0.1));
2443 store_frame = ast_store_new(ctx, INSTR_STOREP_F, self_frame, framenum);
2444 store_nextthink = ast_store_new(ctx, INSTR_STOREP_F, self_nextthink, time_plus_1);
2445 store_think = ast_store_new(ctx, INSTR_STOREP_FNC, self_think, nextthink);
2447 if (!ast_block_exprs_add(block, (ast_expression*)store_frame) ||
2448 !ast_block_exprs_add(block, (ast_expression*)store_nextthink) ||
2449 !ast_block_exprs_add(block, (ast_expression*)store_think) )
2451 parseerror(parser, "failed to generate code for [frame,think]");
2452 ast_block_delete(block);
2453 ast_value_delete(typevar);
2458 for (parami = 0; parami < var->expression.params_count; ++parami) {
2459 ast_value *param = var->expression.params[parami];
2460 varentry_t vx, vy, vz;
2462 if (param->expression.vtype != TYPE_VECTOR &&
2463 (param->expression.vtype != TYPE_FIELD ||
2464 param->expression.next->expression.vtype != TYPE_VECTOR))
2469 if (!create_vector_members(parser, param, &vx, &vy, &vz)) {
2470 ast_block_delete(block);
2471 ast_value_delete(typevar);
2475 (void)!parser_t_locals_add(parser, vx);
2476 (void)!parser_t_locals_add(parser, vy);
2477 (void)!parser_t_locals_add(parser, vz);
2478 if (!ast_block_collect(block, vx.var) ||
2479 !ast_block_collect(block, vy.var) ||
2480 !ast_block_collect(block, vz.var) )
2482 (void)!parser_pop_local(parser);
2483 (void)!parser_pop_local(parser);
2484 (void)!parser_pop_local(parser);
2485 ast_block_delete(block);
2486 ast_value_delete(typevar);
2491 func = ast_function_new(ast_ctx(var), var->name, var);
2493 parseerror(parser, "failed to allocate function for `%s`", var->name);
2494 ast_block_delete(block);
2495 parser->function = old;
2496 ast_value_delete(typevar);
2499 if (!parser_t_functions_add(parser, func)) {
2500 parseerror(parser, "failed to allocate slot for function `%s`", var->name);
2501 ast_function_delete(func);
2502 var->constval.vfunc = NULL;
2503 ast_value_delete(typevar);
2504 ast_block_delete(block);
2505 parser->function = old;
2509 parser->function = func;
2510 if (!parser_parse_block_into(parser, block, true)) {
2511 ast_block_delete(block);
2512 parser->function = old;
2513 ast_value_delete(typevar);
2516 parser->function = old;
2517 while (parser->locals_count)
2518 retval = retval && parser_pop_local(parser);
2521 ast_value_delete(typevar);
2525 if (!ast_function_blocks_add(func, block)) {
2526 ast_block_delete(block);
2527 ast_value_delete(typevar);
2531 if (parser->tok == ';') {
2532 ast_value_delete(typevar);
2533 return parser_next(parser) || parser->tok == TOKEN_EOF;
2535 else if (opts_standard == COMPILER_QCC)
2536 parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)");
2537 ast_value_delete(typevar);
2540 ast_expression *cexp;
2543 cexp = parser_expression_leave(parser, true);
2545 ast_value_delete(typevar);
2549 cval = (ast_value*)cexp;
2550 if (!ast_istype(cval, ast_value) || !cval->isconst)
2551 parseerror(parser, "cannot initialize a global constant variable with a non-constant expression");
2554 var->isconst = true;
2555 if (cval->expression.vtype == TYPE_STRING)
2556 var->constval.vstring = parser_strdup(cval->constval.vstring);
2558 memcpy(&var->constval, &cval->constval, sizeof(var->constval));
2563 if (parser->tok == ',') {
2568 if (parser->tok != ';') {
2569 parseerror(parser, "missing semicolon");
2570 ast_value_delete(typevar);
2574 (void)parser_next(parser);
2576 ast_value_delete(typevar);
2581 static bool parser_do(parser_t *parser)
2583 if (parser->tok == TOKEN_TYPENAME)
2585 return parser_variable(parser, NULL);
2587 else if (parser->tok == TOKEN_KEYWORD)
2589 /* handle 'var' and 'const' */
2592 else if (parser->tok == '.')
2597 ast_expression *oldex;
2598 bool isfunc = false;
2600 lex_ctx ctx = parser_ctx(parser);
2603 /* entity-member declaration */
2604 if (!parser_next(parser) || parser->tok != TOKEN_TYPENAME) {
2605 parseerror(parser, "expected member variable definition");
2609 /* remember the base/return type */
2610 basetype = parser_token(parser)->constval.t;
2612 /* parse into the declaration */
2613 if (!parser_next(parser)) {
2614 parseerror(parser, "expected field definition");
2618 /* parse the field type fully */
2619 typevar = var = parser_parse_type(parser, basetype, &isfunc);
2624 var = ast_value_copy(typevar);
2625 /* now the field name */
2626 if (parser->tok != TOKEN_IDENT) {
2627 parseerror(parser, "expected field name");
2632 /* check for an existing field
2633 * in original qc we also have to check for an existing
2634 * global named like the field
2636 if (opts_standard == COMPILER_QCC) {
2637 if (parser_find_global(parser, parser_tokval(parser))) {
2638 parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc");
2646 fval = ast_value_new(ctx, var->name, TYPE_FUNCTION);
2648 ast_value_delete(var);
2651 fval->expression.next = (ast_expression*)var;
2652 MEM_VECTOR_MOVE(&var->expression, params, &fval->expression, params);
2653 fval->expression.variadic = var->expression.variadic;
2657 /* turn it into a field */
2658 fld = ast_value_new(ctx, parser_tokval(parser), TYPE_FIELD);
2659 fld->expression.next = (ast_expression*)var;
2661 if ( (oldex = parser_find_field(parser, parser_tokval(parser)))) {
2662 if (ast_istype(oldex, ast_member)) {
2663 parseerror(parser, "cannot declare a field with the same name as a vector component, component %s has been declared here: %s:%i",
2664 parser_tokval(parser), ast_ctx(oldex).file, (int)ast_ctx(oldex).line);
2668 if (!ast_istype(oldex, ast_value)) {
2669 /* not possible / sanity check */
2670 parseerror(parser, "internal error: %s is not an ast_value", parser_tokval(parser));
2675 if (!ast_compare_type(oldex, (ast_expression*)fld)) {
2676 parseerror(parser, "field %s has previously been declared with a different type here: %s:%i",
2677 parser_tokval(parser), ast_ctx(oldex).file, (int)ast_ctx(oldex).line);
2681 if (parsewarning(parser, WARN_FIELD_REDECLARED, "field `%s` has already been declared here: %s:%i",
2682 parser_tokval(parser), ast_ctx(oldex).file, (int)ast_ctx(oldex).line))
2693 varent.var = (ast_expression*)fld;
2694 varent.name = util_strdup(fld->name);
2695 (void)!parser_t_fields_add(parser, varent);
2697 if (var->expression.vtype == TYPE_VECTOR)
2699 /* create _x, _y and _z fields as well */
2700 varentry_t vx, vy, vz;
2701 if (!create_vector_members(parser, fld, &vx, &vy, &vz)) {
2705 (void)!parser_t_fields_add(parser, vx);
2706 (void)!parser_t_fields_add(parser, vy);
2707 (void)!parser_t_fields_add(parser, vz);
2711 if (!parser_next(parser)) {
2712 parseerror(parser, "expected semicolon or another field name");
2715 if (parser->tok == ';')
2717 if (parser->tok != ',' || !parser_next(parser)) {
2718 parseerror(parser, "expected semicolon or another field name");
2722 ast_delete(typevar);
2724 /* skip the semicolon */
2725 if (!parser_next(parser))
2726 return parser->tok == TOKEN_EOF;
2730 else if (parser->tok == '$')
2732 if (!parser_next(parser)) {
2733 parseerror(parser, "parse error");
2739 parseerror(parser, "unexpected token: %s", parser->lex->tok->value);
2745 static parser_t *parser;
2749 parser = (parser_t*)mem_a(sizeof(parser_t));
2753 memset(parser, 0, sizeof(*parser));
2757 bool parser_compile(const char *filename)
2759 parser->lex = lex_open(filename);
2761 printf("failed to open file \"%s\"\n", filename);
2765 /* initial lexer/parser state */
2766 parser->lex->flags.noops = true;
2768 if (parser_next(parser))
2770 while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR)
2772 if (!parser_do(parser)) {
2773 if (parser->tok == TOKEN_EOF)
2774 parseerror(parser, "unexpected eof");
2775 else if (!parser->errors)
2776 parseerror(parser, "parse error");
2777 lex_close(parser->lex);
2783 parseerror(parser, "parse error");
2784 lex_close(parser->lex);
2789 lex_close(parser->lex);
2792 return !parser->errors;
2795 void parser_cleanup()
2798 for (i = 0; i < parser->functions_count; ++i) {
2799 ast_delete(parser->functions[i]);
2801 for (i = 0; i < parser->imm_vector_count; ++i) {
2802 ast_delete(parser->imm_vector[i]);
2804 for (i = 0; i < parser->imm_string_count; ++i) {
2805 ast_delete(parser->imm_string[i]);
2807 for (i = 0; i < parser->imm_float_count; ++i) {
2808 ast_delete(parser->imm_float[i]);
2810 for (i = 0; i < parser->fields_count; ++i) {
2811 ast_delete(parser->fields[i].var);
2812 mem_d(parser->fields[i].name);
2814 for (i = 0; i < parser->globals_count; ++i) {
2815 ast_delete(parser->globals[i].var);
2816 mem_d(parser->globals[i].name);
2818 MEM_VECTOR_CLEAR(parser, functions);
2819 MEM_VECTOR_CLEAR(parser, imm_vector);
2820 MEM_VECTOR_CLEAR(parser, imm_string);
2821 MEM_VECTOR_CLEAR(parser, imm_float);
2822 MEM_VECTOR_CLEAR(parser, globals);
2823 MEM_VECTOR_CLEAR(parser, fields);
2824 MEM_VECTOR_CLEAR(parser, locals);
2829 bool parser_finish(const char *output)
2835 if (!parser->errors)
2837 ir = ir_builder_new("gmqcc_out");
2839 printf("failed to allocate builder\n");
2843 for (i = 0; i < parser->fields_count; ++i) {
2846 if (!ast_istype(parser->fields[i].var, ast_value))
2848 field = (ast_value*)parser->fields[i].var;
2849 isconst = field->isconst;
2850 field->isconst = false;
2851 if (!ast_global_codegen((ast_value*)field, ir)) {
2852 printf("failed to generate field %s\n", field->name);
2853 ir_builder_delete(ir);
2858 ast_expression *subtype;
2859 field->isconst = true;
2860 subtype = field->expression.next;
2861 ifld = ir_builder_create_field(ir, field->name, subtype->expression.vtype);
2862 if (subtype->expression.vtype == TYPE_FIELD)
2863 ifld->fieldtype = subtype->expression.next->expression.vtype;
2864 else if (subtype->expression.vtype == TYPE_FUNCTION)
2865 ifld->outtype = subtype->expression.next->expression.vtype;
2866 (void)!ir_value_set_field(field->ir_v, ifld);
2869 for (i = 0; i < parser->globals_count; ++i) {
2871 if (!ast_istype(parser->globals[i].var, ast_value))
2873 asvalue = (ast_value*)(parser->globals[i].var);
2874 if (!asvalue->uses && !asvalue->isconst && asvalue->expression.vtype != TYPE_FUNCTION) {
2875 retval = retval && !genwarning(ast_ctx(asvalue), WARN_UNUSED_VARIABLE,
2876 "unused global: `%s`", asvalue->name);
2878 if (!ast_global_codegen(asvalue, ir)) {
2879 printf("failed to generate global %s\n", parser->globals[i].name);
2880 ir_builder_delete(ir);
2884 for (i = 0; i < parser->imm_float_count; ++i) {
2885 if (!ast_global_codegen(parser->imm_float[i], ir)) {
2886 printf("failed to generate global %s\n", parser->imm_float[i]->name);
2887 ir_builder_delete(ir);
2891 for (i = 0; i < parser->imm_string_count; ++i) {
2892 if (!ast_global_codegen(parser->imm_string[i], ir)) {
2893 printf("failed to generate global %s\n", parser->imm_string[i]->name);
2894 ir_builder_delete(ir);
2898 for (i = 0; i < parser->imm_vector_count; ++i) {
2899 if (!ast_global_codegen(parser->imm_vector[i], ir)) {
2900 printf("failed to generate global %s\n", parser->imm_vector[i]->name);
2901 ir_builder_delete(ir);
2905 for (i = 0; i < parser->functions_count; ++i) {
2906 if (!ast_function_codegen(parser->functions[i], ir)) {
2907 printf("failed to generate function %s\n", parser->functions[i]->name);
2908 ir_builder_delete(ir);
2911 if (!ir_function_finalize(parser->functions[i]->ir_func)) {
2912 printf("failed to finalize function %s\n", parser->functions[i]->name);
2913 ir_builder_delete(ir);
2920 ir_builder_dump(ir, printf);
2922 if (!ir_builder_generate(ir, output)) {
2923 printf("*** failed to generate output file\n");
2924 ir_builder_delete(ir);
2929 ir_builder_delete(ir);
2933 printf("*** there were compile errors\n");