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_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(const string_literal_t *string_literal)
47 for(const char *c = string_literal->value; *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_call_expression(const call_expression_t *call)
73 print_expression(call->function);
75 call_argument_t *argument = call->arguments;
77 while(argument != NULL) {
83 print_expression(argument->expression);
85 argument = argument->next;
90 static void print_binary_expression(const binary_expression_t *binexpr)
93 print_expression(binexpr->left);
95 switch(binexpr->type) {
96 case BINEXPR_INVALID: fputs("INVOP", out); break;
97 case BINEXPR_COMMA: fputs(",", out); break;
98 case BINEXPR_ASSIGN: fputs("=", out); break;
99 case BINEXPR_ADD: fputs("+", out); break;
100 case BINEXPR_SUB: fputs("-", out); break;
101 case BINEXPR_MUL: fputs("*", out); break;
102 case BINEXPR_MOD: fputs("%", out); break;
103 case BINEXPR_DIV: fputs("/", out); break;
104 case BINEXPR_BITWISE_OR: fputs("|", out); break;
105 case BINEXPR_BITWISE_AND: fputs("&", out); break;
106 case BINEXPR_BITWISE_XOR: fputs("^", out); break;
107 case BINEXPR_LOGICAL_OR: fputs("||", out); break;
108 case BINEXPR_LOGICAL_AND: fputs("&&", out); break;
109 case BINEXPR_NOTEQUAL: fputs("!=", out); break;
110 case BINEXPR_EQUAL: fputs("==", out); break;
111 case BINEXPR_LESS: fputs("<", out); break;
112 case BINEXPR_LESSEQUAL: fputs("<=", out); break;
113 case BINEXPR_GREATER: fputs(">", out); break;
114 case BINEXPR_GREATEREQUAL: fputs(">=", out); break;
115 case BINEXPR_SHIFTLEFT: fputs("<<", out); break;
116 case BINEXPR_SHIFTRIGHT: fputs(">>", out); break;
118 case BINEXPR_ADD_ASSIGN: fputs("+=", out); break;
119 case BINEXPR_SUB_ASSIGN: fputs("-=", out); break;
120 case BINEXPR_MUL_ASSIGN: fputs("*=", out); break;
121 case BINEXPR_MOD_ASSIGN: fputs("%=", out); break;
122 case BINEXPR_DIV_ASSIGN: fputs("/=", out); break;
123 case BINEXPR_BITWISE_OR_ASSIGN: fputs("|=", out); break;
124 case BINEXPR_BITWISE_AND_ASSIGN: fputs("&=", out); break;
125 case BINEXPR_BITWISE_XOR_ASSIGN: fputs("^=", out); break;
126 case BINEXPR_SHIFTLEFT_ASSIGN: fputs("<<=", out); break;
127 case BINEXPR_SHIFTRIGHT_ASSIGN: fputs(">>=", out); break;
130 print_expression(binexpr->right);
134 static void print_unary_expression(const unary_expression_t *unexpr)
136 switch(unexpr->type) {
137 case UNEXPR_NEGATE: fputs("-", out); break;
138 case UNEXPR_PLUS: fputs("+", out); break;
139 case UNEXPR_NOT: fputs("!", out); break;
140 case UNEXPR_BITWISE_NEGATE: fputs("~", out); break;
141 case UNEXPR_PREFIX_INCREMENT: fputs("++", out); break;
142 case UNEXPR_PREFIX_DECREMENT: fputs("--", out); break;
143 case UNEXPR_DEREFERENCE: fputs("*", out); break;
144 case UNEXPR_TAKE_ADDRESS: fputs("&", out); break;
146 case UNEXPR_POSTFIX_INCREMENT:
148 print_expression(unexpr->value);
152 case UNEXPR_POSTFIX_DECREMENT:
154 print_expression(unexpr->value);
160 print_type(unexpr->expression.datatype);
164 fprintf(out, "unop%d", (int) unexpr->type);
168 print_expression(unexpr->value);
172 static void print_reference_expression(const reference_expression_t *ref)
174 fprintf(out, "%s", ref->declaration->symbol->string);
177 static void print_array_expression(const array_access_expression_t *expression)
179 if(!expression->flipped) {
181 print_expression(expression->array_ref);
183 print_expression(expression->index);
187 print_expression(expression->index);
189 print_expression(expression->array_ref);
194 static void print_sizeof_expression(const sizeof_expression_t *expression)
196 fputs("sizeof", out);
197 if(expression->size_expression != NULL) {
199 print_expression(expression->size_expression);
203 print_type(expression->type);
208 static void print_builtin_symbol(const builtin_symbol_expression_t *expression)
210 fputs(expression->symbol->string, out);
213 static void print_conditional(const conditional_expression_t *expression)
216 print_expression(expression->condition);
218 print_expression(expression->true_expression);
220 print_expression(expression->false_expression);
224 static void print_va_arg(const va_arg_expression_t *expression)
226 fputs("__builtin_va_arg(", out);
227 print_expression(expression->arg);
229 print_type(expression->expression.datatype);
233 static void print_select(const select_expression_t *expression)
235 print_expression(expression->compound);
236 if(expression->compound->datatype == NULL ||
237 expression->compound->datatype->type == TYPE_POINTER) {
242 fputs(expression->symbol->string, out);
245 static void print_classify_type_expression(
246 const classify_type_expression_t *const expr)
248 fputs("__builtin_classify_type(", out);
249 print_expression(expr->type_expression);
253 void print_expression(const expression_t *expression)
255 switch(expression->type) {
258 fprintf(out, "*invalid expression*");
261 print_const((const const_t*) expression);
264 case EXPR_PRETTY_FUNCTION:
265 case EXPR_STRING_LITERAL:
266 print_string_literal((const string_literal_t*) expression);
269 print_call_expression((const call_expression_t*) expression);
272 print_binary_expression((const binary_expression_t*) expression);
275 print_reference_expression((const reference_expression_t*) expression);
277 case EXPR_ARRAY_ACCESS:
278 print_array_expression((const array_access_expression_t*) expression);
281 print_unary_expression((const unary_expression_t*) expression);
284 print_sizeof_expression((const sizeof_expression_t*) expression);
286 case EXPR_BUILTIN_SYMBOL:
287 print_builtin_symbol((const builtin_symbol_expression_t*) expression);
289 case EXPR_CONDITIONAL:
290 print_conditional((const conditional_expression_t*) expression);
293 print_va_arg((const va_arg_expression_t*) expression);
296 print_select((const select_expression_t*) expression);
298 case EXPR_CLASSIFY_TYPE:
299 print_classify_type_expression((const classify_type_expression_t*)expression);
305 fprintf(out, "some expression of type %d", (int) expression->type);
310 static void print_compound_statement(const compound_statement_t *block)
315 statement_t *statement = block->statements;
316 while(statement != NULL) {
318 print_statement(statement);
320 statement = statement->next;
327 static void print_return_statement(const return_statement_t *statement)
329 fprintf(out, "return ");
330 if(statement->return_value != NULL)
331 print_expression(statement->return_value);
335 static void print_expression_statement(const expression_statement_t *statement)
337 print_expression(statement->expression);
341 static void print_goto_statement(const goto_statement_t *statement)
343 fprintf(out, "goto ");
344 fputs(statement->label->symbol->string, out);
345 fprintf(stderr, "(%p)", (void*) statement->label);
349 static void print_label_statement(const label_statement_t *statement)
351 fprintf(stderr, "(%p)", (void*) statement->label);
352 fprintf(out, "%s:\n", statement->label->symbol->string);
353 if(statement->label_statement != NULL) {
354 print_statement(statement->label_statement);
358 static void print_if_statement(const if_statement_t *statement)
361 print_expression(statement->condition);
363 if(statement->true_statement != NULL) {
364 print_statement(statement->true_statement);
367 if(statement->false_statement != NULL) {
370 print_statement(statement->false_statement);
374 static void print_switch_statement(const switch_statement_t *statement)
376 fputs("switch(", out);
377 print_expression(statement->expression);
379 print_statement(statement->body);
382 static void print_case_label(const case_label_statement_t *statement)
384 if(statement->expression == NULL) {
385 fputs("default:\n", out);
388 print_expression(statement->expression);
391 print_statement(statement->label_statement);
394 static void print_declaration_statement(
395 const declaration_statement_t *statement)
398 declaration_t *declaration = statement->declarations_begin;
399 for( ; declaration != statement->declarations_end->next;
400 declaration = declaration->next) {
406 print_declaration(declaration);
411 static void print_while_statement(const while_statement_t *statement)
413 fputs("while(", out);
414 print_expression(statement->condition);
416 print_statement(statement->body);
419 static void print_do_while_statement(const do_while_statement_t *statement)
422 print_statement(statement->body);
424 fputs("while(", out);
425 print_expression(statement->condition);
429 static void print_for_statement(const for_statement_t *statement)
432 if(statement->context.declarations != NULL) {
433 assert(statement->initialisation == NULL);
434 print_declaration(statement->context.declarations);
435 if(statement->context.declarations->next != NULL) {
436 panic("multiple declarations in for statement not supported yet");
440 if(statement->initialisation) {
441 print_expression(statement->initialisation);
445 if(statement->condition != NULL) {
446 print_expression(statement->condition);
449 if(statement->step != NULL) {
450 print_expression(statement->step);
453 print_statement(statement->body);
456 void print_statement(const statement_t *statement)
458 switch(statement->type) {
459 case STATEMENT_COMPOUND:
460 print_compound_statement((const compound_statement_t*) statement);
462 case STATEMENT_RETURN:
463 print_return_statement((const return_statement_t*) statement);
465 case STATEMENT_EXPRESSION:
466 print_expression_statement((const expression_statement_t*) statement);
468 case STATEMENT_LABEL:
469 print_label_statement((const label_statement_t*) statement);
472 print_goto_statement((const goto_statement_t*) statement);
474 case STATEMENT_CONTINUE:
475 fputs("continue;\n", out);
477 case STATEMENT_BREAK:
478 fputs("break;\n", out);
481 print_if_statement((const if_statement_t*) statement);
483 case STATEMENT_SWITCH:
484 print_switch_statement((const switch_statement_t*) statement);
486 case STATEMENT_CASE_LABEL:
487 print_case_label((const case_label_statement_t*) statement);
489 case STATEMENT_DECLARATION:
490 print_declaration_statement((const declaration_statement_t*) statement);
492 case STATEMENT_WHILE:
493 print_while_statement((const while_statement_t*) statement);
495 case STATEMENT_DO_WHILE:
496 print_do_while_statement((const do_while_statement_t*) statement);
499 print_for_statement((const for_statement_t*) statement);
501 case STATEMENT_INVALID:
502 fprintf(out, "*invalid statement*");
507 static void print_storage_class(storage_class_t storage_class)
509 switch(storage_class) {
510 case STORAGE_CLASS_ENUM_ENTRY:
511 case STORAGE_CLASS_NONE:
513 case STORAGE_CLASS_TYPEDEF: fputs("typedef ", out); break;
514 case STORAGE_CLASS_EXTERN: fputs("extern ", out); break;
515 case STORAGE_CLASS_STATIC: fputs("static ", out); break;
516 case STORAGE_CLASS_AUTO: fputs("auto ", out); break;
517 case STORAGE_CLASS_REGISTER: fputs("register ", out); break;
521 void print_initializer(const initializer_t *initializer)
523 if(initializer->type == INITIALIZER_VALUE) {
524 const initializer_value_t *value = &initializer->value;
525 print_expression(value->value);
529 assert(initializer->type == INITIALIZER_LIST);
531 const initializer_list_t *list = &initializer->list;
533 for(size_t i = 0 ; i < list->len; ++i) {
537 print_initializer(list->initializers[i]);
542 static void print_normal_declaration(const declaration_t *declaration)
544 print_storage_class((storage_class_t)declaration->storage_class);
545 print_type_ext(declaration->type, declaration->symbol,
546 &declaration->context);
547 if(declaration->is_inline) {
548 fputs("inline ", out);
551 if(declaration->type->type == TYPE_FUNCTION) {
552 if(declaration->init.statement != NULL) {
554 print_statement(declaration->init.statement);
557 } else if(declaration->init.initializer != NULL) {
559 print_initializer(declaration->init.initializer);
564 void print_declaration(const declaration_t *declaration)
566 if(declaration->namespc != NAMESPACE_NORMAL &&
567 declaration->symbol == NULL)
570 switch(declaration->namespc) {
571 case NAMESPACE_NORMAL:
572 print_normal_declaration(declaration);
574 case NAMESPACE_STRUCT:
575 fputs("struct ", out);
576 fputs(declaration->symbol->string, out);
578 print_compound_definition(declaration);
581 case NAMESPACE_UNION:
582 fputs("union ", out);
583 fputs(declaration->symbol->string, out);
585 print_compound_definition(declaration);
590 fputs(declaration->symbol->string, out);
592 print_enum_definition(declaration);
598 void print_ast(const translation_unit_t *unit)
601 set_print_compound_entries(true);
603 declaration_t *declaration = unit->context.declarations;
604 for( ; declaration != NULL; declaration = declaration->next) {
605 if(declaration->storage_class == STORAGE_CLASS_ENUM_ENTRY)
607 if(declaration->namespc != NAMESPACE_NORMAL &&
608 declaration->symbol == NULL)
612 print_declaration(declaration);
619 obstack_init(&ast_obstack);
624 obstack_free(&ast_obstack, NULL);
627 void ast_set_output(FILE *stream)
630 type_set_output(stream);
633 void* (allocate_ast) (size_t size)
635 return _allocate_ast(size);