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)
180 print_expression(expression->array_ref);
182 print_expression(expression->index);
186 static void print_sizeof_expression(const sizeof_expression_t *expression)
188 fputs("sizeof", out);
189 if(expression->size_expression != NULL) {
191 print_expression(expression->size_expression);
195 print_type(expression->type);
200 static void print_builtin_symbol(const builtin_symbol_expression_t *expression)
202 fputs(expression->symbol->string, out);
205 static void print_conditional(const conditional_expression_t *expression)
208 print_expression(expression->condition);
210 print_expression(expression->true_expression);
212 print_expression(expression->false_expression);
216 static void print_va_arg(const va_arg_expression_t *expression)
218 fputs("__builtin_va_arg(", out);
219 print_expression(expression->arg);
221 print_type(expression->expression.datatype);
225 static void print_select(const select_expression_t *expression)
227 print_expression(expression->compound);
228 if(expression->compound->datatype == NULL ||
229 expression->compound->datatype->type == TYPE_POINTER) {
234 fputs(expression->symbol->string, out);
237 static void print_classify_type_expression(
238 const classify_type_expression_t *const expr)
240 fputs("__builtin_classify_type(", out);
241 print_expression(expr->type_expression);
245 void print_expression(const expression_t *expression)
247 switch(expression->type) {
250 fprintf(out, "*invalid expression*");
253 print_const((const const_t*) expression);
256 case EXPR_PRETTY_FUNCTION:
257 case EXPR_STRING_LITERAL:
258 print_string_literal((const string_literal_t*) expression);
261 print_call_expression((const call_expression_t*) expression);
264 print_binary_expression((const binary_expression_t*) expression);
267 print_reference_expression((const reference_expression_t*) expression);
269 case EXPR_ARRAY_ACCESS:
270 print_array_expression((const array_access_expression_t*) expression);
273 print_unary_expression((const unary_expression_t*) expression);
276 print_sizeof_expression((const sizeof_expression_t*) expression);
278 case EXPR_BUILTIN_SYMBOL:
279 print_builtin_symbol((const builtin_symbol_expression_t*) expression);
281 case EXPR_CONDITIONAL:
282 print_conditional((const conditional_expression_t*) expression);
285 print_va_arg((const va_arg_expression_t*) expression);
288 print_select((const select_expression_t*) expression);
290 case EXPR_CLASSIFY_TYPE:
291 print_classify_type_expression((const classify_type_expression_t*)expression);
297 fprintf(out, "some expression of type %d", (int) expression->type);
302 static void print_compound_statement(const compound_statement_t *block)
307 statement_t *statement = block->statements;
308 while(statement != NULL) {
310 print_statement(statement);
312 statement = statement->next;
319 static void print_return_statement(const return_statement_t *statement)
321 fprintf(out, "return ");
322 if(statement->return_value != NULL)
323 print_expression(statement->return_value);
327 static void print_expression_statement(const expression_statement_t *statement)
329 print_expression(statement->expression);
333 static void print_goto_statement(const goto_statement_t *statement)
335 fprintf(out, "goto ");
336 fputs(statement->label->symbol->string, out);
337 fprintf(stderr, "(%p)", (void*) statement->label);
341 static void print_label_statement(const label_statement_t *statement)
343 fprintf(stderr, "(%p)", (void*) statement->label);
344 fprintf(out, "%s:\n", statement->label->symbol->string);
345 if(statement->label_statement != NULL) {
346 print_statement(statement->label_statement);
350 static void print_if_statement(const if_statement_t *statement)
353 print_expression(statement->condition);
355 if(statement->true_statement != NULL) {
356 print_statement(statement->true_statement);
359 if(statement->false_statement != NULL) {
362 print_statement(statement->false_statement);
366 static void print_switch_statement(const switch_statement_t *statement)
368 fputs("switch(", out);
369 print_expression(statement->expression);
371 print_statement(statement->body);
374 static void print_case_label(const case_label_statement_t *statement)
376 if(statement->expression == NULL) {
377 fputs("default:\n", out);
380 print_expression(statement->expression);
383 print_statement(statement->label_statement);
386 static void print_declaration_statement(
387 const declaration_statement_t *statement)
390 declaration_t *declaration = statement->declarations_begin;
391 for( ; declaration != statement->declarations_end->next;
392 declaration = declaration->next) {
398 print_declaration(declaration);
403 static void print_while_statement(const while_statement_t *statement)
405 fputs("while(", out);
406 print_expression(statement->condition);
408 print_statement(statement->body);
411 static void print_do_while_statement(const do_while_statement_t *statement)
414 print_statement(statement->body);
416 fputs("while(", out);
417 print_expression(statement->condition);
421 static void print_for_statement(const for_statement_t *statement)
424 if(statement->context.declarations != NULL) {
425 assert(statement->initialisation == NULL);
426 print_declaration(statement->context.declarations);
427 if(statement->context.declarations->next != NULL) {
428 panic("multiple declarations in for statement not supported yet");
432 if(statement->initialisation) {
433 print_expression(statement->initialisation);
437 if(statement->condition != NULL) {
438 print_expression(statement->condition);
441 if(statement->step != NULL) {
442 print_expression(statement->step);
445 print_statement(statement->body);
448 void print_statement(const statement_t *statement)
450 switch(statement->type) {
451 case STATEMENT_COMPOUND:
452 print_compound_statement((const compound_statement_t*) statement);
454 case STATEMENT_RETURN:
455 print_return_statement((const return_statement_t*) statement);
457 case STATEMENT_EXPRESSION:
458 print_expression_statement((const expression_statement_t*) statement);
460 case STATEMENT_LABEL:
461 print_label_statement((const label_statement_t*) statement);
464 print_goto_statement((const goto_statement_t*) statement);
466 case STATEMENT_CONTINUE:
467 fputs("continue;\n", out);
469 case STATEMENT_BREAK:
470 fputs("break;\n", out);
473 print_if_statement((const if_statement_t*) statement);
475 case STATEMENT_SWITCH:
476 print_switch_statement((const switch_statement_t*) statement);
478 case STATEMENT_CASE_LABEL:
479 print_case_label((const case_label_statement_t*) statement);
481 case STATEMENT_DECLARATION:
482 print_declaration_statement((const declaration_statement_t*) statement);
484 case STATEMENT_WHILE:
485 print_while_statement((const while_statement_t*) statement);
487 case STATEMENT_DO_WHILE:
488 print_do_while_statement((const do_while_statement_t*) statement);
491 print_for_statement((const for_statement_t*) statement);
493 case STATEMENT_INVALID:
494 fprintf(out, "*invalid statement*");
499 static void print_storage_class(storage_class_t storage_class)
501 switch(storage_class) {
502 case STORAGE_CLASS_ENUM_ENTRY:
503 case STORAGE_CLASS_NONE:
505 case STORAGE_CLASS_TYPEDEF: fputs("typedef ", out); break;
506 case STORAGE_CLASS_EXTERN: fputs("extern ", out); break;
507 case STORAGE_CLASS_STATIC: fputs("static ", out); break;
508 case STORAGE_CLASS_AUTO: fputs("auto ", out); break;
509 case STORAGE_CLASS_REGISTER: fputs("register ", out); break;
513 void print_initializer(const initializer_t *initializer)
515 if(initializer->type == INITIALIZER_VALUE) {
516 print_expression(initializer->v.value);
520 assert(initializer->type == INITIALIZER_LIST);
523 for(size_t i = 0 ; i < initializer->v.list.len; ++i) {
527 print_initializer(initializer->v.list.initializers[i]);
532 static void print_normal_declaration(const declaration_t *declaration)
534 print_storage_class((storage_class_t)declaration->storage_class);
535 print_type_ext(declaration->type, declaration->symbol,
536 &declaration->context);
537 if(declaration->is_inline) {
538 fputs("inline ", out);
541 if(declaration->type->type == TYPE_FUNCTION) {
542 if(declaration->init.statement != NULL) {
544 print_statement(declaration->init.statement);
547 } else if(declaration->init.initializer != NULL) {
549 print_initializer(declaration->init.initializer);
554 void print_declaration(const declaration_t *declaration)
556 if(declaration->namespc != NAMESPACE_NORMAL &&
557 declaration->symbol == NULL)
560 switch(declaration->namespc) {
561 case NAMESPACE_NORMAL:
562 print_normal_declaration(declaration);
564 case NAMESPACE_STRUCT:
565 fputs("struct ", out);
566 fputs(declaration->symbol->string, out);
568 print_compound_definition(declaration);
571 case NAMESPACE_UNION:
572 fputs("union ", out);
573 fputs(declaration->symbol->string, out);
575 print_compound_definition(declaration);
580 fputs(declaration->symbol->string, out);
582 print_enum_definition(declaration);
588 void print_ast(const translation_unit_t *unit)
591 set_print_compound_entries(true);
593 declaration_t *declaration = unit->context.declarations;
594 for( ; declaration != NULL; declaration = declaration->next) {
595 if(declaration->storage_class == STORAGE_CLASS_ENUM_ENTRY)
597 if(declaration->namespc != NAMESPACE_NORMAL &&
598 declaration->symbol == NULL)
602 print_declaration(declaration);
609 obstack_init(&ast_obstack);
614 obstack_free(&ast_obstack, NULL);
617 void ast_set_output(FILE *stream)
620 type_set_output(stream);
623 void* (allocate_ast) (size_t size)
625 return _allocate_ast(size);