11 #include "adt/error.h"
13 struct obstack ast_obstack;
18 static void print_statement(const statement_t *statement);
20 void change_indent(int delta)
26 void print_indent(void)
28 for(int i = 0; i < indent; ++i)
32 static void print_const(const const_expression_t *cnst)
34 if(cnst->expression.datatype == NULL)
37 if(is_type_integer(cnst->expression.datatype)) {
38 fprintf(out, "%lld", cnst->v.int_value);
39 } else if(is_type_floating(cnst->expression.datatype)) {
40 fprintf(out, "%Lf", cnst->v.float_value);
44 static void print_quoted_string(const char *string)
47 for(const char *c = string; *c != '\0'; ++c) {
49 case '\"': fputs("\\\"", out); break;
50 case '\\': fputs("\\\\", out); break;
51 case '\a': fputs("\\a", out); break;
52 case '\b': fputs("\\b", out); break;
53 case '\f': fputs("\\f", out); break;
54 case '\n': fputs("\\n", out); break;
55 case '\r': fputs("\\r", out); break;
56 case '\t': fputs("\\t", out); break;
57 case '\v': fputs("\\v", out); break;
58 case '\?': fputs("\\?", out); break;
61 fprintf(out, "\\x%x", *c);
71 static void print_string_literal(
72 const string_literal_expression_t *string_literal)
74 print_quoted_string(string_literal->value);
77 static void print_call_expression(const call_expression_t *call)
79 print_expression(call->function);
81 call_argument_t *argument = call->arguments;
83 while(argument != NULL) {
89 print_expression(argument->expression);
91 argument = argument->next;
96 static void print_binary_expression(const binary_expression_t *binexpr)
99 print_expression(binexpr->left);
101 switch(binexpr->type) {
102 case BINEXPR_INVALID: fputs("INVOP", out); break;
103 case BINEXPR_COMMA: fputs(",", out); break;
104 case BINEXPR_ASSIGN: fputs("=", out); break;
105 case BINEXPR_ADD: fputs("+", out); break;
106 case BINEXPR_SUB: fputs("-", out); break;
107 case BINEXPR_MUL: fputs("*", out); break;
108 case BINEXPR_MOD: fputs("%", out); break;
109 case BINEXPR_DIV: fputs("/", out); break;
110 case BINEXPR_BITWISE_OR: fputs("|", out); break;
111 case BINEXPR_BITWISE_AND: fputs("&", out); break;
112 case BINEXPR_BITWISE_XOR: fputs("^", out); break;
113 case BINEXPR_LOGICAL_OR: fputs("||", out); break;
114 case BINEXPR_LOGICAL_AND: fputs("&&", out); break;
115 case BINEXPR_NOTEQUAL: fputs("!=", out); break;
116 case BINEXPR_EQUAL: fputs("==", out); break;
117 case BINEXPR_LESS: fputs("<", out); break;
118 case BINEXPR_LESSEQUAL: fputs("<=", out); break;
119 case BINEXPR_GREATER: fputs(">", out); break;
120 case BINEXPR_GREATEREQUAL: fputs(">=", out); break;
121 case BINEXPR_SHIFTLEFT: fputs("<<", out); break;
122 case BINEXPR_SHIFTRIGHT: fputs(">>", out); break;
124 case BINEXPR_ADD_ASSIGN: fputs("+=", out); break;
125 case BINEXPR_SUB_ASSIGN: fputs("-=", out); break;
126 case BINEXPR_MUL_ASSIGN: fputs("*=", out); break;
127 case BINEXPR_MOD_ASSIGN: fputs("%=", out); break;
128 case BINEXPR_DIV_ASSIGN: fputs("/=", out); break;
129 case BINEXPR_BITWISE_OR_ASSIGN: fputs("|=", out); break;
130 case BINEXPR_BITWISE_AND_ASSIGN: fputs("&=", out); break;
131 case BINEXPR_BITWISE_XOR_ASSIGN: fputs("^=", out); break;
132 case BINEXPR_SHIFTLEFT_ASSIGN: fputs("<<=", out); break;
133 case BINEXPR_SHIFTRIGHT_ASSIGN: fputs(">>=", out); break;
136 print_expression(binexpr->right);
140 static void print_unary_expression(const unary_expression_t *unexpr)
142 switch(unexpr->type) {
143 case UNEXPR_NEGATE: fputs("-", out); break;
144 case UNEXPR_PLUS: fputs("+", out); break;
145 case UNEXPR_NOT: fputs("!", out); break;
146 case UNEXPR_BITWISE_NEGATE: fputs("~", out); break;
147 case UNEXPR_PREFIX_INCREMENT: fputs("++", out); break;
148 case UNEXPR_PREFIX_DECREMENT: fputs("--", out); break;
149 case UNEXPR_DEREFERENCE: fputs("*", out); break;
150 case UNEXPR_TAKE_ADDRESS: fputs("&", out); break;
152 case UNEXPR_POSTFIX_INCREMENT:
154 print_expression(unexpr->value);
158 case UNEXPR_POSTFIX_DECREMENT:
160 print_expression(unexpr->value);
166 print_type(unexpr->expression.datatype);
170 fprintf(out, "unop%d", (int) unexpr->type);
174 print_expression(unexpr->value);
178 static void print_reference_expression(const reference_expression_t *ref)
180 fprintf(out, "%s", ref->declaration->symbol->string);
183 static void print_array_expression(const array_access_expression_t *expression)
185 if(!expression->flipped) {
187 print_expression(expression->array_ref);
189 print_expression(expression->index);
193 print_expression(expression->index);
195 print_expression(expression->array_ref);
200 static void print_sizeof_expression(const sizeof_expression_t *expression)
202 fputs("sizeof", out);
203 if(expression->size_expression != NULL) {
205 print_expression(expression->size_expression);
209 print_type(expression->type);
214 static void print_builtin_symbol(const builtin_symbol_expression_t *expression)
216 fputs(expression->symbol->string, out);
219 static void print_conditional(const conditional_expression_t *expression)
222 print_expression(expression->condition);
224 print_expression(expression->true_expression);
226 print_expression(expression->false_expression);
230 static void print_va_arg(const va_arg_expression_t *expression)
232 fputs("__builtin_va_arg(", out);
233 print_expression(expression->arg);
235 print_type(expression->expression.datatype);
239 static void print_select(const select_expression_t *expression)
241 print_expression(expression->compound);
242 if(expression->compound->base.datatype == NULL ||
243 expression->compound->base.datatype->type == TYPE_POINTER) {
248 fputs(expression->symbol->string, out);
251 static void print_classify_type_expression(
252 const classify_type_expression_t *const expr)
254 fputs("__builtin_classify_type(", out);
255 print_expression(expr->type_expression);
259 void print_expression(const expression_t *expression)
261 switch(expression->type) {
264 fprintf(out, "*invalid expression*");
267 print_const(&expression->conste);
270 case EXPR_PRETTY_FUNCTION:
271 case EXPR_STRING_LITERAL:
272 print_string_literal(&expression->string);
275 print_call_expression(&expression->call);
278 print_binary_expression(&expression->binary);
281 print_reference_expression(&expression->reference);
283 case EXPR_ARRAY_ACCESS:
284 print_array_expression(&expression->array_access);
287 print_unary_expression(&expression->unary);
290 print_sizeof_expression(&expression->sizeofe);
292 case EXPR_BUILTIN_SYMBOL:
293 print_builtin_symbol(&expression->builtin_symbol);
295 case EXPR_CONDITIONAL:
296 print_conditional(&expression->conditional);
299 print_va_arg(&expression->va_arge);
302 print_select(&expression->select);
304 case EXPR_CLASSIFY_TYPE:
305 print_classify_type_expression(&expression->classify_type);
311 fprintf(out, "some expression of type %d", (int) expression->type);
316 static void print_compound_statement(const compound_statement_t *block)
321 statement_t *statement = block->statements;
322 while(statement != NULL) {
324 print_statement(statement);
326 statement = statement->base.next;
333 static void print_return_statement(const return_statement_t *statement)
335 fprintf(out, "return ");
336 if(statement->return_value != NULL)
337 print_expression(statement->return_value);
341 static void print_expression_statement(const expression_statement_t *statement)
343 print_expression(statement->expression);
347 static void print_goto_statement(const goto_statement_t *statement)
349 fprintf(out, "goto ");
350 fputs(statement->label->symbol->string, out);
351 fprintf(stderr, "(%p)", (void*) statement->label);
355 static void print_label_statement(const label_statement_t *statement)
357 fprintf(stderr, "(%p)", (void*) statement->label);
358 fprintf(out, "%s:\n", statement->label->symbol->string);
359 if(statement->label_statement != NULL) {
360 print_statement(statement->label_statement);
364 static void print_if_statement(const if_statement_t *statement)
367 print_expression(statement->condition);
369 if(statement->true_statement != NULL) {
370 print_statement(statement->true_statement);
373 if(statement->false_statement != NULL) {
376 print_statement(statement->false_statement);
380 static void print_switch_statement(const switch_statement_t *statement)
382 fputs("switch(", out);
383 print_expression(statement->expression);
385 print_statement(statement->body);
388 static void print_case_label(const case_label_statement_t *statement)
390 if(statement->expression == NULL) {
391 fputs("default:\n", out);
394 print_expression(statement->expression);
397 print_statement(statement->label_statement);
400 static void print_declaration_statement(
401 const declaration_statement_t *statement)
404 declaration_t *declaration = statement->declarations_begin;
405 for( ; declaration != statement->declarations_end->next;
406 declaration = declaration->next) {
412 print_declaration(declaration);
417 static void print_while_statement(const while_statement_t *statement)
419 fputs("while(", out);
420 print_expression(statement->condition);
422 print_statement(statement->body);
425 static void print_do_while_statement(const do_while_statement_t *statement)
428 print_statement(statement->body);
430 fputs("while(", out);
431 print_expression(statement->condition);
435 static void print_for_statement(const for_statement_t *statement)
438 if(statement->context.declarations != NULL) {
439 assert(statement->initialisation == NULL);
440 print_declaration(statement->context.declarations);
441 if(statement->context.declarations->next != NULL) {
442 panic("multiple declarations in for statement not supported yet");
446 if(statement->initialisation) {
447 print_expression(statement->initialisation);
451 if(statement->condition != NULL) {
452 print_expression(statement->condition);
455 if(statement->step != NULL) {
456 print_expression(statement->step);
459 print_statement(statement->body);
462 static void print_asm_constraints(asm_constraint_t *constraints)
464 asm_constraint_t *constraint = constraints;
465 for( ; constraint != NULL; constraint = constraint->next) {
466 if(constraint != constraints)
469 if(constraint->symbol) {
470 fprintf(out, "[%s] ", constraint->symbol->string);
472 print_quoted_string(constraint->constraints);
474 print_expression(constraint->expression);
479 static void print_asm_clobbers(asm_clobber_t *clobbers)
481 asm_clobber_t *clobber = clobbers;
482 for( ; clobber != NULL; clobber = clobber->next) {
483 if(clobber != clobbers)
486 print_quoted_string(clobber->clobber);
490 static void print_asm_statement(const asm_statement_t *statement)
493 if(statement->is_volatile) {
494 fputs(" volatile", out);
497 print_quoted_string(statement->asm_text);
498 if(statement->inputs == NULL && statement->outputs == NULL
499 && statement->clobbers == NULL)
500 goto end_of_print_asm_statement;
503 print_asm_constraints(statement->inputs);
504 if(statement->outputs == NULL && statement->clobbers == NULL)
505 goto end_of_print_asm_statement;
508 print_asm_constraints(statement->outputs);
509 if(statement->clobbers == NULL)
510 goto end_of_print_asm_statement;
513 print_asm_clobbers(statement->clobbers);
515 end_of_print_asm_statement:
519 void print_statement(const statement_t *statement)
521 switch(statement->type) {
522 case STATEMENT_COMPOUND:
523 print_compound_statement(&statement->compound);
525 case STATEMENT_RETURN:
526 print_return_statement(&statement->returns);
528 case STATEMENT_EXPRESSION:
529 print_expression_statement(&statement->expression);
531 case STATEMENT_LABEL:
532 print_label_statement(&statement->label);
535 print_goto_statement(&statement->gotos);
537 case STATEMENT_CONTINUE:
538 fputs("continue;\n", out);
540 case STATEMENT_BREAK:
541 fputs("break;\n", out);
544 print_if_statement(&statement->ifs);
546 case STATEMENT_SWITCH:
547 print_switch_statement(&statement->switchs);
549 case STATEMENT_CASE_LABEL:
550 print_case_label(&statement->case_label);
552 case STATEMENT_DECLARATION:
553 print_declaration_statement(&statement->declaration);
555 case STATEMENT_WHILE:
556 print_while_statement(&statement->whiles);
558 case STATEMENT_DO_WHILE:
559 print_do_while_statement(&statement->do_while);
562 print_for_statement(&statement->fors);
565 print_asm_statement(&statement->asms);
567 case STATEMENT_INVALID:
568 fprintf(out, "*invalid statement*");
573 static void print_storage_class(unsigned storage_class)
575 switch((storage_class_tag_t) storage_class) {
576 case STORAGE_CLASS_ENUM_ENTRY:
577 case STORAGE_CLASS_NONE:
579 case STORAGE_CLASS_TYPEDEF: fputs("typedef ", out); break;
580 case STORAGE_CLASS_EXTERN: fputs("extern ", out); break;
581 case STORAGE_CLASS_STATIC: fputs("static ", out); break;
582 case STORAGE_CLASS_AUTO: fputs("auto ", out); break;
583 case STORAGE_CLASS_REGISTER: fputs("register ", out); break;
584 case STORAGE_CLASS_THREAD: fputs("__thread", out); break;
585 case STORAGE_CLASS_THREAD_EXTERN: fputs("extern __thread", out); break;
586 case STORAGE_CLASS_THREAD_STATIC: fputs("static __thread", out); break;
590 void print_initializer(const initializer_t *initializer)
592 if(initializer->type == INITIALIZER_VALUE) {
593 const initializer_value_t *value = &initializer->value;
594 print_expression(value->value);
598 assert(initializer->type == INITIALIZER_LIST);
600 const initializer_list_t *list = &initializer->list;
602 for(size_t i = 0 ; i < list->len; ++i) {
606 print_initializer(list->initializers[i]);
611 static void print_normal_declaration(const declaration_t *declaration)
613 print_storage_class(declaration->storage_class);
614 if(declaration->is_inline) {
615 fputs("inline ", out);
617 print_type_ext(declaration->type, declaration->symbol,
618 &declaration->context);
620 if(declaration->type->type == TYPE_FUNCTION) {
621 if(declaration->init.statement != NULL) {
623 print_statement(declaration->init.statement);
626 } else if(declaration->init.initializer != NULL) {
628 print_initializer(declaration->init.initializer);
633 void print_declaration(const declaration_t *declaration)
635 if(declaration->namespc != NAMESPACE_NORMAL &&
636 declaration->symbol == NULL)
639 switch(declaration->namespc) {
640 case NAMESPACE_NORMAL:
641 print_normal_declaration(declaration);
643 case NAMESPACE_STRUCT:
644 fputs("struct ", out);
645 fputs(declaration->symbol->string, out);
647 print_compound_definition(declaration);
650 case NAMESPACE_UNION:
651 fputs("union ", out);
652 fputs(declaration->symbol->string, out);
654 print_compound_definition(declaration);
659 fputs(declaration->symbol->string, out);
661 print_enum_definition(declaration);
667 void print_ast(const translation_unit_t *unit)
671 declaration_t *declaration = unit->context.declarations;
672 for( ; declaration != NULL; declaration = declaration->next) {
673 if(declaration->storage_class == STORAGE_CLASS_ENUM_ENTRY)
675 if(declaration->namespc != NAMESPACE_NORMAL &&
676 declaration->symbol == NULL)
680 print_declaration(declaration);
687 obstack_init(&ast_obstack);
692 obstack_free(&ast_obstack, NULL);
695 void ast_set_output(FILE *stream)
698 type_set_output(stream);
701 void* (allocate_ast) (size_t size)
703 return _allocate_ast(size);