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_wide_string_literal(
78 const wide_string_literal_expression_t *const wstr)
81 for (const wchar_rep_t *c = wstr->value.begin,
82 *end = c + wstr->value.size;
85 case L'\"': fputs("\\\"", out); break;
86 case L'\\': fputs("\\\\", out); break;
87 case L'\a': fputs("\\a", out); break;
88 case L'\b': fputs("\\b", out); break;
89 case L'\f': fputs("\\f", out); break;
90 case L'\n': fputs("\\n", out); break;
91 case L'\r': fputs("\\r", out); break;
92 case L'\t': fputs("\\t", out); break;
93 case L'\v': fputs("\\v", out); break;
94 case L'\?': fputs("\\?", out); break;
96 const unsigned tc = *c;
99 fprintf(out, "\\%03o", (char)*c);
103 } else if (tc < 0x800) {
104 fputc(0xC0 | (tc >> 6), out);
105 fputc(0x80 | (tc & 0x3F), out);
106 } else if (tc < 0x10000) {
107 fputc(0xE0 | ( tc >> 12), out);
108 fputc(0x80 | ((tc >> 6) & 0x3F), out);
109 fputc(0x80 | ( tc & 0x3F), out);
111 fputc(0xF0 | ( tc >> 18), out);
112 fputc(0x80 | ((tc >> 12) & 0x3F), out);
113 fputc(0x80 | ((tc >> 6) & 0x3F), out);
114 fputc(0x80 | ( tc & 0x3F), out);
122 static void print_call_expression(const call_expression_t *call)
124 print_expression(call->function);
126 call_argument_t *argument = call->arguments;
128 while(argument != NULL) {
134 print_expression(argument->expression);
136 argument = argument->next;
141 static void print_binary_expression(const binary_expression_t *binexpr)
144 print_expression(binexpr->left);
146 switch(binexpr->type) {
147 case BINEXPR_INVALID: fputs("INVOP", out); break;
148 case BINEXPR_COMMA: fputs(",", out); break;
149 case BINEXPR_ASSIGN: fputs("=", out); break;
150 case BINEXPR_ADD: fputs("+", out); break;
151 case BINEXPR_SUB: fputs("-", out); break;
152 case BINEXPR_MUL: fputs("*", out); break;
153 case BINEXPR_MOD: fputs("%", out); break;
154 case BINEXPR_DIV: fputs("/", out); break;
155 case BINEXPR_BITWISE_OR: fputs("|", out); break;
156 case BINEXPR_BITWISE_AND: fputs("&", out); break;
157 case BINEXPR_BITWISE_XOR: fputs("^", out); break;
158 case BINEXPR_LOGICAL_OR: fputs("||", out); break;
159 case BINEXPR_LOGICAL_AND: fputs("&&", out); break;
160 case BINEXPR_NOTEQUAL: fputs("!=", out); break;
161 case BINEXPR_EQUAL: fputs("==", out); break;
162 case BINEXPR_LESS: fputs("<", out); break;
163 case BINEXPR_LESSEQUAL: fputs("<=", out); break;
164 case BINEXPR_GREATER: fputs(">", out); break;
165 case BINEXPR_GREATEREQUAL: fputs(">=", out); break;
166 case BINEXPR_SHIFTLEFT: fputs("<<", out); break;
167 case BINEXPR_SHIFTRIGHT: fputs(">>", out); break;
169 case BINEXPR_ADD_ASSIGN: fputs("+=", out); break;
170 case BINEXPR_SUB_ASSIGN: fputs("-=", out); break;
171 case BINEXPR_MUL_ASSIGN: fputs("*=", out); break;
172 case BINEXPR_MOD_ASSIGN: fputs("%=", out); break;
173 case BINEXPR_DIV_ASSIGN: fputs("/=", out); break;
174 case BINEXPR_BITWISE_OR_ASSIGN: fputs("|=", out); break;
175 case BINEXPR_BITWISE_AND_ASSIGN: fputs("&=", out); break;
176 case BINEXPR_BITWISE_XOR_ASSIGN: fputs("^=", out); break;
177 case BINEXPR_SHIFTLEFT_ASSIGN: fputs("<<=", out); break;
178 case BINEXPR_SHIFTRIGHT_ASSIGN: fputs(">>=", out); break;
181 print_expression(binexpr->right);
185 static void print_unary_expression(const unary_expression_t *unexpr)
187 switch(unexpr->type) {
188 case UNEXPR_NEGATE: fputs("-", out); break;
189 case UNEXPR_PLUS: fputs("+", out); break;
190 case UNEXPR_NOT: fputs("!", out); break;
191 case UNEXPR_BITWISE_NEGATE: fputs("~", out); break;
192 case UNEXPR_PREFIX_INCREMENT: fputs("++", out); break;
193 case UNEXPR_PREFIX_DECREMENT: fputs("--", out); break;
194 case UNEXPR_DEREFERENCE: fputs("*", out); break;
195 case UNEXPR_TAKE_ADDRESS: fputs("&", out); break;
197 case UNEXPR_POSTFIX_INCREMENT:
199 print_expression(unexpr->value);
203 case UNEXPR_POSTFIX_DECREMENT:
205 print_expression(unexpr->value);
211 print_type(unexpr->expression.datatype);
214 case UNEXPR_CAST_IMPLICIT:
215 print_expression(unexpr->value);
218 fprintf(out, "unop%d", (int) unexpr->type);
222 print_expression(unexpr->value);
226 static void print_reference_expression(const reference_expression_t *ref)
228 fprintf(out, "%s", ref->declaration->symbol->string);
231 static void print_array_expression(const array_access_expression_t *expression)
233 if(!expression->flipped) {
235 print_expression(expression->array_ref);
237 print_expression(expression->index);
241 print_expression(expression->index);
243 print_expression(expression->array_ref);
248 static void print_sizeof_expression(const sizeof_expression_t *expression)
250 fputs("sizeof", out);
251 if(expression->size_expression != NULL) {
253 print_expression(expression->size_expression);
257 print_type(expression->type);
262 static void print_builtin_symbol(const builtin_symbol_expression_t *expression)
264 fputs(expression->symbol->string, out);
267 static void print_conditional(const conditional_expression_t *expression)
270 print_expression(expression->condition);
272 print_expression(expression->true_expression);
274 print_expression(expression->false_expression);
278 static void print_va_arg(const va_arg_expression_t *expression)
280 fputs("__builtin_va_arg(", out);
281 print_expression(expression->arg);
283 print_type(expression->expression.datatype);
287 static void print_select(const select_expression_t *expression)
289 print_expression(expression->compound);
290 if(expression->compound->base.datatype == NULL ||
291 expression->compound->base.datatype->type == TYPE_POINTER) {
296 fputs(expression->symbol->string, out);
299 static void print_classify_type_expression(
300 const classify_type_expression_t *const expr)
302 fputs("__builtin_classify_type(", out);
303 print_expression(expr->type_expression);
307 void print_expression(const expression_t *expression)
309 switch(expression->type) {
312 fprintf(out, "*invalid expression*");
315 print_const(&expression->conste);
318 case EXPR_PRETTY_FUNCTION:
319 case EXPR_STRING_LITERAL:
320 print_string_literal(&expression->string);
322 case EXPR_WIDE_STRING_LITERAL:
323 print_wide_string_literal(&expression->wide_string);
326 print_call_expression(&expression->call);
329 print_binary_expression(&expression->binary);
332 print_reference_expression(&expression->reference);
334 case EXPR_ARRAY_ACCESS:
335 print_array_expression(&expression->array_access);
338 print_unary_expression(&expression->unary);
341 print_sizeof_expression(&expression->sizeofe);
343 case EXPR_BUILTIN_SYMBOL:
344 print_builtin_symbol(&expression->builtin_symbol);
346 case EXPR_CONDITIONAL:
347 print_conditional(&expression->conditional);
350 print_va_arg(&expression->va_arge);
353 print_select(&expression->select);
355 case EXPR_CLASSIFY_TYPE:
356 print_classify_type_expression(&expression->classify_type);
362 fprintf(out, "some expression of type %d", (int) expression->type);
367 static void print_compound_statement(const compound_statement_t *block)
372 statement_t *statement = block->statements;
373 while(statement != NULL) {
375 print_statement(statement);
377 statement = statement->base.next;
384 static void print_return_statement(const return_statement_t *statement)
386 fprintf(out, "return ");
387 if(statement->return_value != NULL)
388 print_expression(statement->return_value);
392 static void print_expression_statement(const expression_statement_t *statement)
394 print_expression(statement->expression);
398 static void print_goto_statement(const goto_statement_t *statement)
400 fprintf(out, "goto ");
401 fputs(statement->label->symbol->string, out);
402 fprintf(stderr, "(%p)", (void*) statement->label);
406 static void print_label_statement(const label_statement_t *statement)
408 fprintf(stderr, "(%p)", (void*) statement->label);
409 fprintf(out, "%s:\n", statement->label->symbol->string);
410 if(statement->label_statement != NULL) {
411 print_statement(statement->label_statement);
415 static void print_if_statement(const if_statement_t *statement)
418 print_expression(statement->condition);
420 if(statement->true_statement != NULL) {
421 print_statement(statement->true_statement);
424 if(statement->false_statement != NULL) {
427 print_statement(statement->false_statement);
431 static void print_switch_statement(const switch_statement_t *statement)
433 fputs("switch(", out);
434 print_expression(statement->expression);
436 print_statement(statement->body);
439 static void print_case_label(const case_label_statement_t *statement)
441 if(statement->expression == NULL) {
442 fputs("default:\n", out);
445 print_expression(statement->expression);
448 print_statement(statement->label_statement);
451 static void print_declaration_statement(
452 const declaration_statement_t *statement)
455 declaration_t *declaration = statement->declarations_begin;
456 for( ; declaration != statement->declarations_end->next;
457 declaration = declaration->next) {
463 print_declaration(declaration);
468 static void print_while_statement(const while_statement_t *statement)
470 fputs("while(", out);
471 print_expression(statement->condition);
473 print_statement(statement->body);
476 static void print_do_while_statement(const do_while_statement_t *statement)
479 print_statement(statement->body);
481 fputs("while(", out);
482 print_expression(statement->condition);
486 static void print_for_statement(const for_statement_t *statement)
489 if(statement->context.declarations != NULL) {
490 assert(statement->initialisation == NULL);
491 print_declaration(statement->context.declarations);
492 if(statement->context.declarations->next != NULL) {
493 panic("multiple declarations in for statement not supported yet");
497 if(statement->initialisation) {
498 print_expression(statement->initialisation);
502 if(statement->condition != NULL) {
503 print_expression(statement->condition);
506 if(statement->step != NULL) {
507 print_expression(statement->step);
510 print_statement(statement->body);
513 static void print_asm_constraints(asm_constraint_t *constraints)
515 asm_constraint_t *constraint = constraints;
516 for( ; constraint != NULL; constraint = constraint->next) {
517 if(constraint != constraints)
520 if(constraint->symbol) {
521 fprintf(out, "[%s] ", constraint->symbol->string);
523 print_quoted_string(constraint->constraints);
525 print_expression(constraint->expression);
530 static void print_asm_clobbers(asm_clobber_t *clobbers)
532 asm_clobber_t *clobber = clobbers;
533 for( ; clobber != NULL; clobber = clobber->next) {
534 if(clobber != clobbers)
537 print_quoted_string(clobber->clobber);
541 static void print_asm_statement(const asm_statement_t *statement)
544 if(statement->is_volatile) {
545 fputs("volatile ", out);
548 print_quoted_string(statement->asm_text);
549 if(statement->inputs == NULL && statement->outputs == NULL
550 && statement->clobbers == NULL)
551 goto end_of_print_asm_statement;
554 print_asm_constraints(statement->inputs);
555 if(statement->outputs == NULL && statement->clobbers == NULL)
556 goto end_of_print_asm_statement;
559 print_asm_constraints(statement->outputs);
560 if(statement->clobbers == NULL)
561 goto end_of_print_asm_statement;
564 print_asm_clobbers(statement->clobbers);
566 end_of_print_asm_statement:
570 void print_statement(const statement_t *statement)
572 switch(statement->type) {
573 case STATEMENT_COMPOUND:
574 print_compound_statement(&statement->compound);
576 case STATEMENT_RETURN:
577 print_return_statement(&statement->returns);
579 case STATEMENT_EXPRESSION:
580 print_expression_statement(&statement->expression);
582 case STATEMENT_LABEL:
583 print_label_statement(&statement->label);
586 print_goto_statement(&statement->gotos);
588 case STATEMENT_CONTINUE:
589 fputs("continue;\n", out);
591 case STATEMENT_BREAK:
592 fputs("break;\n", out);
595 print_if_statement(&statement->ifs);
597 case STATEMENT_SWITCH:
598 print_switch_statement(&statement->switchs);
600 case STATEMENT_CASE_LABEL:
601 print_case_label(&statement->case_label);
603 case STATEMENT_DECLARATION:
604 print_declaration_statement(&statement->declaration);
606 case STATEMENT_WHILE:
607 print_while_statement(&statement->whiles);
609 case STATEMENT_DO_WHILE:
610 print_do_while_statement(&statement->do_while);
613 print_for_statement(&statement->fors);
616 print_asm_statement(&statement->asms);
618 case STATEMENT_INVALID:
619 fprintf(out, "*invalid statement*");
624 static void print_storage_class(unsigned storage_class)
626 switch((storage_class_tag_t) storage_class) {
627 case STORAGE_CLASS_ENUM_ENTRY:
628 case STORAGE_CLASS_NONE:
630 case STORAGE_CLASS_TYPEDEF: fputs("typedef ", out); break;
631 case STORAGE_CLASS_EXTERN: fputs("extern ", out); break;
632 case STORAGE_CLASS_STATIC: fputs("static ", out); break;
633 case STORAGE_CLASS_AUTO: fputs("auto ", out); break;
634 case STORAGE_CLASS_REGISTER: fputs("register ", out); break;
635 case STORAGE_CLASS_THREAD: fputs("__thread", out); break;
636 case STORAGE_CLASS_THREAD_EXTERN: fputs("extern __thread", out); break;
637 case STORAGE_CLASS_THREAD_STATIC: fputs("static __thread", out); break;
641 void print_initializer(const initializer_t *initializer)
643 if(initializer->type == INITIALIZER_VALUE) {
644 const initializer_value_t *value = &initializer->value;
645 print_expression(value->value);
649 assert(initializer->type == INITIALIZER_LIST);
651 const initializer_list_t *list = &initializer->list;
653 for(size_t i = 0 ; i < list->len; ++i) {
657 print_initializer(list->initializers[i]);
662 static void print_normal_declaration(const declaration_t *declaration)
664 print_storage_class(declaration->storage_class);
665 if(declaration->is_inline) {
666 fputs("inline ", out);
668 print_type_ext(declaration->type, declaration->symbol,
669 &declaration->context);
671 if(declaration->type->type == TYPE_FUNCTION) {
672 if(declaration->init.statement != NULL) {
674 print_statement(declaration->init.statement);
677 } else if(declaration->init.initializer != NULL) {
679 print_initializer(declaration->init.initializer);
684 void print_declaration(const declaration_t *declaration)
686 if(declaration->namespc != NAMESPACE_NORMAL &&
687 declaration->symbol == NULL)
690 switch(declaration->namespc) {
691 case NAMESPACE_NORMAL:
692 print_normal_declaration(declaration);
694 case NAMESPACE_STRUCT:
695 fputs("struct ", out);
696 fputs(declaration->symbol->string, out);
698 print_compound_definition(declaration);
701 case NAMESPACE_UNION:
702 fputs("union ", out);
703 fputs(declaration->symbol->string, out);
705 print_compound_definition(declaration);
710 fputs(declaration->symbol->string, out);
712 print_enum_definition(declaration);
718 void print_ast(const translation_unit_t *unit)
722 declaration_t *declaration = unit->context.declarations;
723 for( ; declaration != NULL; declaration = declaration->next) {
724 if(declaration->storage_class == STORAGE_CLASS_ENUM_ENTRY)
726 if(declaration->namespc != NAMESPACE_NORMAL &&
727 declaration->symbol == NULL)
731 print_declaration(declaration);
738 obstack_init(&ast_obstack);
743 obstack_free(&ast_obstack, NULL);
746 void ast_set_output(FILE *stream)
749 type_set_output(stream);
752 void* (allocate_ast) (size_t size)
754 return _allocate_ast(size);