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 statement_t *block)
307 statement_t *statement = block->v.compound_stmt.statements;
308 while(statement != NULL) {
310 print_statement(statement);
312 statement = statement->next;
319 static void print_return_statement(const statement_t *statement)
321 fprintf(out, "return ");
322 if(statement->v.return_value != NULL)
323 print_expression(statement->v.return_value);
327 static void print_expression_statement(const statement_t *statement)
329 print_expression(statement->v.expression);
333 static void print_goto_statement(const statement_t *statement)
335 fprintf(out, "goto ");
336 fputs(statement->v.goto_label->symbol->string, out);
337 fprintf(stderr, "(%p)", (void*) statement->v.goto_label);
341 static void print_label_statement(const statement_t *statement)
343 fprintf(stderr, "(%p)", (void*) statement->v.label_stmt.label);
344 fprintf(out, "%s:\n", statement->v.label_stmt.label->symbol->string);
345 if(statement->v.label_stmt.label_statement != NULL) {
346 print_statement(statement->v.label_stmt.label_statement);
350 static void print_if_statement(const statement_t *statement)
353 print_expression(statement->v.if_stmt.condition);
355 if(statement->v.if_stmt.true_statement != NULL) {
356 print_statement(statement->v.if_stmt.true_statement);
359 if(statement->v.if_stmt.false_statement != NULL) {
362 print_statement(statement->v.if_stmt.false_statement);
366 static void print_switch_statement(const statement_t *statement)
368 fputs("switch(", out);
369 print_expression(statement->v.switch_stmt.expression);
371 print_statement(statement->v.switch_stmt.body);
374 static void print_case_label(const statement_t *statement)
376 if(statement->v.case_label_stmt.expression == NULL) {
377 fputs("default:\n", out);
380 print_expression(statement->v.case_label_stmt.expression);
383 print_statement(statement->v.case_label_stmt.label_statement);
386 static void print_declaration_statement(const statement_t *statement)
389 declaration_t *declaration = statement->v.declaration_stmt.begin;
390 for( ; declaration != statement->v.declaration_stmt.end->next;
391 declaration = declaration->next) {
397 print_declaration(declaration);
402 static void print_while_statement(const statement_t *statement)
404 fputs("while(", out);
405 print_expression(statement->v.while_stmt.condition);
407 print_statement(statement->v.while_stmt.body);
410 static void print_do_while_statement(const statement_t *statement)
413 print_statement(statement->v.while_stmt.body);
415 fputs("while(", out);
416 print_expression(statement->v.while_stmt.condition);
420 static void print_for_statement(const statement_t *statement)
423 if(statement->v.for_stmt.context.declarations != NULL) {
424 assert(statement->v.for_stmt.initialisation == NULL);
425 print_declaration(statement->v.for_stmt.context.declarations);
426 if(statement->v.for_stmt.context.declarations->next != NULL) {
427 panic("multiple declarations in for statement not supported yet");
431 if(statement->v.for_stmt.initialisation) {
432 print_expression(statement->v.for_stmt.initialisation);
436 if(statement->v.for_stmt.condition != NULL) {
437 print_expression(statement->v.for_stmt.condition);
440 if(statement->v.for_stmt.step != NULL) {
441 print_expression(statement->v.for_stmt.step);
444 print_statement(statement->v.for_stmt.body);
447 void print_statement(const statement_t *statement)
449 switch(statement->type) {
450 case STATEMENT_COMPOUND:
451 print_compound_statement(statement);
453 case STATEMENT_RETURN:
454 print_return_statement(statement);
456 case STATEMENT_EXPRESSION:
457 print_expression_statement(statement);
459 case STATEMENT_LABEL:
460 print_label_statement(statement);
463 print_goto_statement(statement);
465 case STATEMENT_CONTINUE:
466 fputs("continue;\n", out);
468 case STATEMENT_BREAK:
469 fputs("break;\n", out);
472 print_if_statement(statement);
474 case STATEMENT_SWITCH:
475 print_switch_statement(statement);
477 case STATEMENT_CASE_LABEL:
478 print_case_label(statement);
480 case STATEMENT_DECLARATION:
481 print_declaration_statement(statement);
483 case STATEMENT_WHILE:
484 print_while_statement(statement);
486 case STATEMENT_DO_WHILE:
487 print_do_while_statement(statement);
490 print_for_statement(statement);
492 case STATEMENT_INVALID:
493 fprintf(out, "*invalid statement*");
498 static void print_storage_class(storage_class_t storage_class)
500 switch(storage_class) {
501 case STORAGE_CLASS_ENUM_ENTRY:
502 case STORAGE_CLASS_NONE:
504 case STORAGE_CLASS_TYPEDEF: fputs("typedef ", out); break;
505 case STORAGE_CLASS_EXTERN: fputs("extern ", out); break;
506 case STORAGE_CLASS_STATIC: fputs("static ", out); break;
507 case STORAGE_CLASS_AUTO: fputs("auto ", out); break;
508 case STORAGE_CLASS_REGISTER: fputs("register ", out); break;
512 void print_initializer(const initializer_t *initializer)
514 if(initializer->type == INITIALIZER_VALUE) {
515 print_expression(initializer->v.value);
519 assert(initializer->type == INITIALIZER_LIST);
522 for(size_t i = 0 ; i < initializer->v.list.len; ++i) {
526 print_initializer(initializer->v.list.initializers[i]);
531 static void print_normal_declaration(const declaration_t *declaration)
533 print_storage_class((storage_class_t)declaration->storage_class);
534 print_type_ext(declaration->type, declaration->symbol,
535 &declaration->context);
536 if(declaration->is_inline) {
537 fputs("inline ", out);
540 if(declaration->type->type == TYPE_FUNCTION) {
541 if(declaration->init.statement != NULL) {
543 print_statement(declaration->init.statement);
546 } else if(declaration->init.initializer != NULL) {
548 print_initializer(declaration->init.initializer);
553 void print_declaration(const declaration_t *declaration)
555 if(declaration->namespc != NAMESPACE_NORMAL &&
556 declaration->symbol == NULL)
559 switch(declaration->namespc) {
560 case NAMESPACE_NORMAL:
561 print_normal_declaration(declaration);
563 case NAMESPACE_STRUCT:
564 fputs("struct ", out);
565 fputs(declaration->symbol->string, out);
567 print_compound_definition(declaration);
570 case NAMESPACE_UNION:
571 fputs("union ", out);
572 fputs(declaration->symbol->string, out);
574 print_compound_definition(declaration);
579 fputs(declaration->symbol->string, out);
581 print_enum_definition(declaration);
587 void print_ast(const translation_unit_t *unit)
590 set_print_compound_entries(true);
592 declaration_t *declaration = unit->context.declarations;
593 for( ; declaration != NULL; declaration = declaration->next) {
594 if(declaration->storage_class == STORAGE_CLASS_ENUM_ENTRY)
596 if(declaration->namespc != NAMESPACE_NORMAL &&
597 declaration->symbol == NULL)
601 print_declaration(declaration);
608 obstack_init(&ast_obstack);
613 obstack_free(&ast_obstack, NULL);
616 void ast_set_output(FILE *stream)
619 type_set_output(stream);
622 void* (allocate_ast) (size_t size)
624 return _allocate_ast(size);