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, "%d", 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", 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 void print_expression(const expression_t *expression)
239 switch(expression->type) {
241 fprintf(out, "*invalid expression*");
244 print_const((const const_t*) expression);
247 case EXPR_PRETTY_FUNCTION:
248 case EXPR_STRING_LITERAL:
249 print_string_literal((const string_literal_t*) expression);
252 print_call_expression((const call_expression_t*) expression);
255 print_binary_expression((const binary_expression_t*) expression);
258 print_reference_expression((const reference_expression_t*) expression);
260 case EXPR_ARRAY_ACCESS:
261 print_array_expression((const array_access_expression_t*) expression);
264 print_unary_expression((const unary_expression_t*) expression);
267 print_sizeof_expression((const sizeof_expression_t*) expression);
269 case EXPR_BUILTIN_SYMBOL:
270 print_builtin_symbol((const builtin_symbol_expression_t*) expression);
272 case EXPR_CONDITIONAL:
273 print_conditional((const conditional_expression_t*) expression);
276 print_va_arg((const va_arg_expression_t*) expression);
279 print_select((const select_expression_t*) expression);
285 fprintf(out, "some expression of type %d", expression->type);
290 static void print_compound_statement(const compound_statement_t *block)
295 statement_t *statement = block->statements;
296 while(statement != NULL) {
298 print_statement(statement);
300 statement = statement->next;
307 static void print_return_statement(const return_statement_t *statement)
309 fprintf(out, "return ");
310 if(statement->return_value != NULL)
311 print_expression(statement->return_value);
315 static void print_expression_statement(const expression_statement_t *statement)
317 print_expression(statement->expression);
321 static void print_goto_statement(const goto_statement_t *statement)
323 fprintf(out, "goto ");
324 fputs(statement->label->symbol->string, out);
325 fprintf(stderr, "(%p)", (void*) statement->label);
329 static void print_label_statement(const label_statement_t *statement)
331 fprintf(stderr, "(%p)", (void*) statement->label);
332 fprintf(out, "%s:\n", statement->label->symbol->string);
333 if(statement->label_statement != NULL) {
334 print_statement(statement->label_statement);
338 static void print_if_statement(const if_statement_t *statement)
341 print_expression(statement->condition);
343 if(statement->true_statement != NULL) {
344 print_statement(statement->true_statement);
347 if(statement->false_statement != NULL) {
350 print_statement(statement->false_statement);
354 static void print_switch_statement(const switch_statement_t *statement)
356 fputs("switch(", out);
357 print_expression(statement->expression);
359 print_statement(statement->body);
362 static void print_case_label(const case_label_statement_t *statement)
364 if(statement->expression == NULL) {
365 fputs("default:\n", out);
368 print_expression(statement->expression);
373 static void print_declaration_statement(
374 const declaration_statement_t *statement)
377 declaration_t *declaration = statement->declarations_begin;
378 for( ; declaration != statement->declarations_end->next;
379 declaration = declaration->next) {
385 print_declaration(declaration);
390 static void print_while_statement(const while_statement_t *statement)
392 fputs("while(", out);
393 print_expression(statement->condition);
395 print_statement(statement->body);
398 static void print_do_while_statement(const do_while_statement_t *statement)
401 print_statement(statement->body);
403 fputs("while(", out);
404 print_expression(statement->condition);
408 static void print_for_statement(const for_statement_t *statement)
411 if(statement->context.declarations != NULL) {
412 assert(statement->initialisation == NULL);
413 print_declaration(statement->context.declarations);
414 if(statement->context.declarations->next != NULL) {
415 panic("multiple declarations in for statement not supported yet");
419 if(statement->initialisation) {
420 print_expression(statement->initialisation);
424 if(statement->condition != NULL) {
425 print_expression(statement->condition);
428 if(statement->step != NULL) {
429 print_expression(statement->step);
432 print_statement(statement->body);
435 void print_statement(const statement_t *statement)
437 switch(statement->type) {
438 case STATEMENT_COMPOUND:
439 print_compound_statement((const compound_statement_t*) statement);
441 case STATEMENT_RETURN:
442 print_return_statement((const return_statement_t*) statement);
444 case STATEMENT_EXPRESSION:
445 print_expression_statement((const expression_statement_t*) statement);
447 case STATEMENT_LABEL:
448 print_label_statement((const label_statement_t*) statement);
451 print_goto_statement((const goto_statement_t*) statement);
453 case STATEMENT_CONTINUE:
454 fputs("continue;\n", out);
456 case STATEMENT_BREAK:
457 fputs("break;\n", out);
460 print_if_statement((const if_statement_t*) statement);
462 case STATEMENT_SWITCH:
463 print_switch_statement((const switch_statement_t*) statement);
465 case STATEMENT_CASE_LABEL:
466 print_case_label((const case_label_statement_t*) statement);
468 case STATEMENT_DECLARATION:
469 print_declaration_statement((const declaration_statement_t*) statement);
471 case STATEMENT_WHILE:
472 print_while_statement((const while_statement_t*) statement);
474 case STATEMENT_DO_WHILE:
475 print_do_while_statement((const do_while_statement_t*) statement);
478 print_for_statement((const for_statement_t*) statement);
480 case STATEMENT_INVALID:
481 fprintf(out, "*invalid statement*");
486 static void print_storage_class(storage_class_t storage_class)
488 switch(storage_class) {
489 case STORAGE_CLASS_ENUM_ENTRY:
490 case STORAGE_CLASS_NONE:
492 case STORAGE_CLASS_TYPEDEF: fputs("typedef ", out); break;
493 case STORAGE_CLASS_EXTERN: fputs("extern ", out); break;
494 case STORAGE_CLASS_STATIC: fputs("static ", out); break;
495 case STORAGE_CLASS_AUTO: fputs("auto ", out); break;
496 case STORAGE_CLASS_REGISTER: fputs("register ", out); break;
500 void print_initializer(const initializer_t *initializer)
502 if(initializer->type == INITIALIZER_VALUE) {
503 print_expression(initializer->v.value);
507 assert(initializer->type == INITIALIZER_LIST);
509 initializer_t *iter = initializer->v.list;
510 for( ; iter != NULL; iter = iter->next) {
511 print_initializer(iter);
512 if(iter->next != NULL) {
519 static void print_normal_declaration(const declaration_t *declaration)
521 print_storage_class(declaration->storage_class);
522 print_type_ext(declaration->type, declaration->symbol,
523 &declaration->context);
524 if(declaration->is_inline) {
525 fputs("inline ", out);
528 if(declaration->type->type == TYPE_FUNCTION) {
529 if(declaration->init.statement != NULL) {
531 print_statement(declaration->init.statement);
534 } else if(declaration->init.initializer != NULL) {
536 print_initializer(declaration->init.initializer);
541 void print_declaration(const declaration_t *declaration)
543 if(declaration->namespace != NAMESPACE_NORMAL &&
544 declaration->symbol == NULL)
547 switch(declaration->namespace) {
548 case NAMESPACE_NORMAL:
549 print_normal_declaration(declaration);
551 case NAMESPACE_STRUCT:
552 fputs("struct ", out);
553 fputs(declaration->symbol->string, out);
555 print_compound_definition(declaration);
558 case NAMESPACE_UNION:
559 fputs("union ", out);
560 fputs(declaration->symbol->string, out);
562 print_compound_definition(declaration);
567 fputs(declaration->symbol->string, out);
569 print_enum_definition(declaration);
575 void print_ast(const translation_unit_t *unit)
578 set_print_compound_entries(true);
580 declaration_t *declaration = unit->context.declarations;
581 for( ; declaration != NULL; declaration = declaration->next) {
582 if(declaration->storage_class == STORAGE_CLASS_ENUM_ENTRY)
584 if(declaration->namespace != NAMESPACE_NORMAL &&
585 declaration->symbol == NULL)
589 print_declaration(declaration);
596 obstack_init(&ast_obstack);
601 obstack_free(&ast_obstack, NULL);
604 void ast_set_output(FILE *stream)
607 type_set_output(stream);
610 void* (allocate_ast) (size_t size)
612 return _allocate_ast(size);