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_string_literal(
45 const string_literal_expression_t *string_literal)
48 for(const char *c = string_literal->value; *c != '\0'; ++c) {
50 case '\"': fputs("\\\"", out); break;
51 case '\\': fputs("\\\\", out); break;
52 case '\a': fputs("\\a", out); break;
53 case '\b': fputs("\\b", out); break;
54 case '\f': fputs("\\f", out); break;
55 case '\n': fputs("\\n", out); break;
56 case '\r': fputs("\\r", out); break;
57 case '\t': fputs("\\t", out); break;
58 case '\v': fputs("\\v", out); break;
59 case '\?': fputs("\\?", out); break;
62 fprintf(out, "\\x%x", *c);
72 static void print_call_expression(const call_expression_t *call)
74 print_expression(call->function);
76 call_argument_t *argument = call->arguments;
78 while(argument != NULL) {
84 print_expression(argument->expression);
86 argument = argument->next;
91 static void print_binary_expression(const binary_expression_t *binexpr)
94 print_expression(binexpr->left);
96 switch(binexpr->type) {
97 case BINEXPR_INVALID: fputs("INVOP", out); break;
98 case BINEXPR_COMMA: fputs(",", out); break;
99 case BINEXPR_ASSIGN: fputs("=", out); break;
100 case BINEXPR_ADD: fputs("+", out); break;
101 case BINEXPR_SUB: fputs("-", out); break;
102 case BINEXPR_MUL: fputs("*", out); break;
103 case BINEXPR_MOD: fputs("%", out); break;
104 case BINEXPR_DIV: fputs("/", out); break;
105 case BINEXPR_BITWISE_OR: fputs("|", out); break;
106 case BINEXPR_BITWISE_AND: fputs("&", out); break;
107 case BINEXPR_BITWISE_XOR: fputs("^", out); break;
108 case BINEXPR_LOGICAL_OR: fputs("||", out); break;
109 case BINEXPR_LOGICAL_AND: fputs("&&", out); break;
110 case BINEXPR_NOTEQUAL: fputs("!=", out); break;
111 case BINEXPR_EQUAL: fputs("==", out); break;
112 case BINEXPR_LESS: fputs("<", out); break;
113 case BINEXPR_LESSEQUAL: fputs("<=", out); break;
114 case BINEXPR_GREATER: fputs(">", out); break;
115 case BINEXPR_GREATEREQUAL: fputs(">=", out); break;
116 case BINEXPR_SHIFTLEFT: fputs("<<", out); break;
117 case BINEXPR_SHIFTRIGHT: fputs(">>", out); break;
119 case BINEXPR_ADD_ASSIGN: fputs("+=", out); break;
120 case BINEXPR_SUB_ASSIGN: fputs("-=", out); break;
121 case BINEXPR_MUL_ASSIGN: fputs("*=", out); break;
122 case BINEXPR_MOD_ASSIGN: fputs("%=", out); break;
123 case BINEXPR_DIV_ASSIGN: fputs("/=", out); break;
124 case BINEXPR_BITWISE_OR_ASSIGN: fputs("|=", out); break;
125 case BINEXPR_BITWISE_AND_ASSIGN: fputs("&=", out); break;
126 case BINEXPR_BITWISE_XOR_ASSIGN: fputs("^=", out); break;
127 case BINEXPR_SHIFTLEFT_ASSIGN: fputs("<<=", out); break;
128 case BINEXPR_SHIFTRIGHT_ASSIGN: fputs(">>=", out); break;
131 print_expression(binexpr->right);
135 static void print_unary_expression(const unary_expression_t *unexpr)
137 switch(unexpr->type) {
138 case UNEXPR_NEGATE: fputs("-", out); break;
139 case UNEXPR_PLUS: fputs("+", out); break;
140 case UNEXPR_NOT: fputs("!", out); break;
141 case UNEXPR_BITWISE_NEGATE: fputs("~", out); break;
142 case UNEXPR_PREFIX_INCREMENT: fputs("++", out); break;
143 case UNEXPR_PREFIX_DECREMENT: fputs("--", out); break;
144 case UNEXPR_DEREFERENCE: fputs("*", out); break;
145 case UNEXPR_TAKE_ADDRESS: fputs("&", out); break;
147 case UNEXPR_POSTFIX_INCREMENT:
149 print_expression(unexpr->value);
153 case UNEXPR_POSTFIX_DECREMENT:
155 print_expression(unexpr->value);
161 print_type(unexpr->expression.datatype);
165 fprintf(out, "unop%d", (int) unexpr->type);
169 print_expression(unexpr->value);
173 static void print_reference_expression(const reference_expression_t *ref)
175 fprintf(out, "%s", ref->declaration->symbol->string);
178 static void print_array_expression(const array_access_expression_t *expression)
180 if(!expression->flipped) {
182 print_expression(expression->array_ref);
184 print_expression(expression->index);
188 print_expression(expression->index);
190 print_expression(expression->array_ref);
195 static void print_sizeof_expression(const sizeof_expression_t *expression)
197 fputs("sizeof", out);
198 if(expression->size_expression != NULL) {
200 print_expression(expression->size_expression);
204 print_type(expression->type);
209 static void print_builtin_symbol(const builtin_symbol_expression_t *expression)
211 fputs(expression->symbol->string, out);
214 static void print_conditional(const conditional_expression_t *expression)
217 print_expression(expression->condition);
219 print_expression(expression->true_expression);
221 print_expression(expression->false_expression);
225 static void print_va_arg(const va_arg_expression_t *expression)
227 fputs("__builtin_va_arg(", out);
228 print_expression(expression->arg);
230 print_type(expression->expression.datatype);
234 static void print_select(const select_expression_t *expression)
236 print_expression(expression->compound);
237 if(expression->compound->base.datatype == NULL ||
238 expression->compound->base.datatype->type == TYPE_POINTER) {
243 fputs(expression->symbol->string, out);
246 static void print_classify_type_expression(
247 const classify_type_expression_t *const expr)
249 fputs("__builtin_classify_type(", out);
250 print_expression(expr->type_expression);
254 void print_expression(const expression_t *expression)
256 switch(expression->type) {
259 fprintf(out, "*invalid expression*");
262 print_const(&expression->conste);
265 case EXPR_PRETTY_FUNCTION:
266 case EXPR_STRING_LITERAL:
267 print_string_literal(&expression->string);
270 print_call_expression(&expression->call);
273 print_binary_expression(&expression->binary);
276 print_reference_expression(&expression->reference);
278 case EXPR_ARRAY_ACCESS:
279 print_array_expression(&expression->array_access);
282 print_unary_expression(&expression->unary);
285 print_sizeof_expression(&expression->sizeofe);
287 case EXPR_BUILTIN_SYMBOL:
288 print_builtin_symbol(&expression->builtin_symbol);
290 case EXPR_CONDITIONAL:
291 print_conditional(&expression->conditional);
294 print_va_arg(&expression->va_arge);
297 print_select(&expression->select);
299 case EXPR_CLASSIFY_TYPE:
300 print_classify_type_expression(&expression->classify_type);
306 fprintf(out, "some expression of type %d", (int) expression->type);
311 static void print_compound_statement(const compound_statement_t *block)
316 statement_t *statement = block->statements;
317 while(statement != NULL) {
319 print_statement(statement);
321 statement = statement->base.next;
328 static void print_return_statement(const return_statement_t *statement)
330 fprintf(out, "return ");
331 if(statement->return_value != NULL)
332 print_expression(statement->return_value);
336 static void print_expression_statement(const expression_statement_t *statement)
338 print_expression(statement->expression);
342 static void print_goto_statement(const goto_statement_t *statement)
344 fprintf(out, "goto ");
345 fputs(statement->label->symbol->string, out);
346 fprintf(stderr, "(%p)", (void*) statement->label);
350 static void print_label_statement(const label_statement_t *statement)
352 fprintf(stderr, "(%p)", (void*) statement->label);
353 fprintf(out, "%s:\n", statement->label->symbol->string);
354 if(statement->label_statement != NULL) {
355 print_statement(statement->label_statement);
359 static void print_if_statement(const if_statement_t *statement)
362 print_expression(statement->condition);
364 if(statement->true_statement != NULL) {
365 print_statement(statement->true_statement);
368 if(statement->false_statement != NULL) {
371 print_statement(statement->false_statement);
375 static void print_switch_statement(const switch_statement_t *statement)
377 fputs("switch(", out);
378 print_expression(statement->expression);
380 print_statement(statement->body);
383 static void print_case_label(const case_label_statement_t *statement)
385 if(statement->expression == NULL) {
386 fputs("default:\n", out);
389 print_expression(statement->expression);
392 print_statement(statement->label_statement);
395 static void print_declaration_statement(
396 const declaration_statement_t *statement)
399 declaration_t *declaration = statement->declarations_begin;
400 for( ; declaration != statement->declarations_end->next;
401 declaration = declaration->next) {
407 print_declaration(declaration);
412 static void print_while_statement(const while_statement_t *statement)
414 fputs("while(", out);
415 print_expression(statement->condition);
417 print_statement(statement->body);
420 static void print_do_while_statement(const do_while_statement_t *statement)
423 print_statement(statement->body);
425 fputs("while(", out);
426 print_expression(statement->condition);
430 static void print_for_statement(const for_statement_t *statement)
433 if(statement->context.declarations != NULL) {
434 assert(statement->initialisation == NULL);
435 print_declaration(statement->context.declarations);
436 if(statement->context.declarations->next != NULL) {
437 panic("multiple declarations in for statement not supported yet");
441 if(statement->initialisation) {
442 print_expression(statement->initialisation);
446 if(statement->condition != NULL) {
447 print_expression(statement->condition);
450 if(statement->step != NULL) {
451 print_expression(statement->step);
454 print_statement(statement->body);
457 void print_statement(const statement_t *statement)
459 switch(statement->type) {
460 case STATEMENT_COMPOUND:
461 print_compound_statement((const compound_statement_t*) statement);
463 case STATEMENT_RETURN:
464 print_return_statement((const return_statement_t*) statement);
466 case STATEMENT_EXPRESSION:
467 print_expression_statement((const expression_statement_t*) statement);
469 case STATEMENT_LABEL:
470 print_label_statement((const label_statement_t*) statement);
473 print_goto_statement((const goto_statement_t*) statement);
475 case STATEMENT_CONTINUE:
476 fputs("continue;\n", out);
478 case STATEMENT_BREAK:
479 fputs("break;\n", out);
482 print_if_statement((const if_statement_t*) statement);
484 case STATEMENT_SWITCH:
485 print_switch_statement((const switch_statement_t*) statement);
487 case STATEMENT_CASE_LABEL:
488 print_case_label((const case_label_statement_t*) statement);
490 case STATEMENT_DECLARATION:
491 print_declaration_statement((const declaration_statement_t*) statement);
493 case STATEMENT_WHILE:
494 print_while_statement((const while_statement_t*) statement);
496 case STATEMENT_DO_WHILE:
497 print_do_while_statement((const do_while_statement_t*) statement);
500 print_for_statement((const for_statement_t*) statement);
502 case STATEMENT_INVALID:
503 fprintf(out, "*invalid statement*");
508 static void print_storage_class(unsigned storage_class)
510 switch((storage_class_tag_t) storage_class) {
511 case STORAGE_CLASS_ENUM_ENTRY:
512 case STORAGE_CLASS_NONE:
514 case STORAGE_CLASS_TYPEDEF: fputs("typedef ", out); break;
515 case STORAGE_CLASS_EXTERN: fputs("extern ", out); break;
516 case STORAGE_CLASS_STATIC: fputs("static ", out); break;
517 case STORAGE_CLASS_AUTO: fputs("auto ", out); break;
518 case STORAGE_CLASS_REGISTER: fputs("register ", out); break;
519 case STORAGE_CLASS_THREAD: fputs("__thread", out); break;
520 case STORAGE_CLASS_THREAD_EXTERN: fputs("extern __thread", out); break;
521 case STORAGE_CLASS_THREAD_STATIC: fputs("static __thread", out); break;
525 void print_initializer(const initializer_t *initializer)
527 if(initializer->type == INITIALIZER_VALUE) {
528 const initializer_value_t *value = &initializer->value;
529 print_expression(value->value);
533 assert(initializer->type == INITIALIZER_LIST);
535 const initializer_list_t *list = &initializer->list;
537 for(size_t i = 0 ; i < list->len; ++i) {
541 print_initializer(list->initializers[i]);
546 static void print_normal_declaration(const declaration_t *declaration)
548 print_storage_class(declaration->storage_class);
549 print_type_ext(declaration->type, declaration->symbol,
550 &declaration->context);
551 if(declaration->is_inline) {
552 fputs("inline ", out);
555 if(declaration->type->type == TYPE_FUNCTION) {
556 if(declaration->init.statement != NULL) {
558 print_statement(declaration->init.statement);
561 } else if(declaration->init.initializer != NULL) {
563 print_initializer(declaration->init.initializer);
568 void print_declaration(const declaration_t *declaration)
570 if(declaration->namespc != NAMESPACE_NORMAL &&
571 declaration->symbol == NULL)
574 switch(declaration->namespc) {
575 case NAMESPACE_NORMAL:
576 print_normal_declaration(declaration);
578 case NAMESPACE_STRUCT:
579 fputs("struct ", out);
580 fputs(declaration->symbol->string, out);
582 print_compound_definition(declaration);
585 case NAMESPACE_UNION:
586 fputs("union ", out);
587 fputs(declaration->symbol->string, out);
589 print_compound_definition(declaration);
594 fputs(declaration->symbol->string, out);
596 print_enum_definition(declaration);
602 void print_ast(const translation_unit_t *unit)
606 declaration_t *declaration = unit->context.declarations;
607 for( ; declaration != NULL; declaration = declaration->next) {
608 if(declaration->storage_class == STORAGE_CLASS_ENUM_ENTRY)
610 if(declaration->namespc != NAMESPACE_NORMAL &&
611 declaration->symbol == NULL)
615 print_declaration(declaration);
622 obstack_init(&ast_obstack);
627 obstack_free(&ast_obstack, NULL);
630 void ast_set_output(FILE *stream)
633 type_set_output(stream);
636 void* (allocate_ast) (size_t size)
638 return _allocate_ast(size);