11 #include "adt/error.h"
13 struct obstack ast_obstack;
18 static void print_statement(const statement_t *statement);
19 static void print_declaration(const declaration_t *declaration);
21 static void print_indent(void)
23 for(int i = 0; i < indent; ++i)
27 static void print_const(const const_t *cnst)
29 if(cnst->expression.datatype == NULL)
32 if(is_type_integer(cnst->expression.datatype)) {
33 fprintf(out, "%d", cnst->v.int_value);
37 static void print_string_literal(const string_literal_t *string_literal)
40 for(const char *c = string_literal->value; *c != '\0'; ++c) {
42 case '\"': fputs("\\\"", out); break;
43 case '\\': fputs("\\\\", out); break;
44 case '\a': fputs("\\a", out); break;
45 case '\b': fputs("\\b", out); break;
46 case '\f': fputs("\\f", out); break;
47 case '\n': fputs("\\n", out); break;
48 case '\r': fputs("\\r", out); break;
49 case '\t': fputs("\\t", out); break;
50 case '\v': fputs("\\v", out); break;
51 case '\?': fputs("\\?", out); break;
54 fprintf(out, "\\x%x", *c);
64 static void print_call_expression(const call_expression_t *call)
66 print_expression(call->method);
68 call_argument_t *argument = call->arguments;
70 while(argument != NULL) {
76 print_expression(argument->expression);
78 argument = argument->next;
83 static void print_binary_expression(const binary_expression_t *binexpr)
86 print_expression(binexpr->left);
88 switch(binexpr->type) {
89 case BINEXPR_INVALID: fputs("INVOP", out); break;
90 case BINEXPR_COMMA: fputs(",", out); break;
91 case BINEXPR_ASSIGN: fputs("=", out); break;
92 case BINEXPR_ADD: fputs("+", out); break;
93 case BINEXPR_SUB: fputs("-", out); break;
94 case BINEXPR_MUL: fputs("*", out); break;
95 case BINEXPR_MOD: fputs("%", out); break;
96 case BINEXPR_DIV: fputs("/", out); break;
97 case BINEXPR_BITWISE_OR: fputs("|", out); break;
98 case BINEXPR_BITWISE_AND: fputs("&", out); break;
99 case BINEXPR_BITWISE_XOR: fputs("^", out); break;
100 case BINEXPR_LOGICAL_OR: fputs("||", out); break;
101 case BINEXPR_LOGICAL_AND: fputs("&&", out); break;
102 case BINEXPR_NOTEQUAL: fputs("!=", out); break;
103 case BINEXPR_EQUAL: fputs("==", out); break;
104 case BINEXPR_LESS: fputs("<", out); break;
105 case BINEXPR_LESSEQUAL: fputs("<=", out); break;
106 case BINEXPR_GREATER: fputs(">", out); break;
107 case BINEXPR_GREATEREQUAL: fputs(">=", out); break;
108 case BINEXPR_SHIFTLEFT: fputs("<<", out); break;
109 case BINEXPR_SHIFTRIGHT: fputs(">>", out); break;
111 case BINEXPR_ADD_ASSIGN: fputs("+=", out); break;
112 case BINEXPR_SUB_ASSIGN: fputs("-=", out); break;
113 case BINEXPR_MUL_ASSIGN: fputs("*=", out); break;
114 case BINEXPR_MOD_ASSIGN: fputs("%=", out); break;
115 case BINEXPR_DIV_ASSIGN: fputs("/=", out); break;
116 case BINEXPR_BITWISE_OR_ASSIGN: fputs("|=", out); break;
117 case BINEXPR_BITWISE_AND_ASSIGN: fputs("&=", out); break;
118 case BINEXPR_BITWISE_XOR_ASSIGN: fputs("^=", out); break;
119 case BINEXPR_SHIFTLEFT_ASSIGN: fputs("<<=", out); break;
120 case BINEXPR_SHIFTRIGHT_ASSIGN: fputs(">>=", out); break;
123 print_expression(binexpr->right);
127 static void print_unary_expression(const unary_expression_t *unexpr)
129 switch(unexpr->type) {
130 case UNEXPR_NEGATE: fputs("-", out); break;
131 case UNEXPR_PLUS: fputs("+", out); break;
132 case UNEXPR_NOT: fputs("!", out); break;
133 case UNEXPR_BITWISE_NEGATE: fputs("~", out); break;
134 case UNEXPR_PREFIX_INCREMENT: fputs("++", out); break;
135 case UNEXPR_PREFIX_DECREMENT: fputs("--", out); break;
136 case UNEXPR_DEREFERENCE: fputs("*", out); break;
137 case UNEXPR_TAKE_ADDRESS: fputs("&", out); break;
139 case UNEXPR_POSTFIX_INCREMENT:
141 print_expression(unexpr->value);
145 case UNEXPR_POSTFIX_DECREMENT:
147 print_expression(unexpr->value);
153 print_type(unexpr->expression.datatype);
157 fprintf(out, "unop%d", unexpr->type);
161 print_expression(unexpr->value);
165 static void print_reference_expression(const reference_expression_t *ref)
167 fprintf(out, "%s", ref->declaration->symbol->string);
170 static void print_array_expression(const array_access_expression_t *expression)
173 print_expression(expression->array_ref);
175 print_expression(expression->index);
179 static void print_sizeof_expression(const sizeof_expression_t *expression)
181 fputs("sizeof", out);
182 if(expression->size_expression != NULL) {
184 print_expression(expression->size_expression);
188 print_type(expression->type);
193 static void print_builtin_symbol(const builtin_symbol_expression_t *expression)
195 fputs(expression->symbol->string, out);
198 void print_expression(const expression_t *expression)
200 switch(expression->type) {
202 fprintf(out, "*invalid expression*");
205 print_const((const const_t*) expression);
208 case EXPR_PRETTY_FUNCTION:
209 case EXPR_STRING_LITERAL:
210 print_string_literal((const string_literal_t*) expression);
213 print_call_expression((const call_expression_t*) expression);
216 print_binary_expression((const binary_expression_t*) expression);
219 print_reference_expression((const reference_expression_t*) expression);
221 case EXPR_ARRAY_ACCESS:
222 print_array_expression((const array_access_expression_t*) expression);
225 print_unary_expression((const unary_expression_t*) expression);
228 print_sizeof_expression((const sizeof_expression_t*) expression);
230 case EXPR_BUILTIN_SYMBOL:
231 print_builtin_symbol((const builtin_symbol_expression_t*) expression);
234 case EXPR_CONDITIONAL:
239 fprintf(out, "some expression of type %d", expression->type);
244 static void print_compound_statement(const compound_statement_t *block)
249 statement_t *statement = block->statements;
250 while(statement != NULL) {
252 print_statement(statement);
254 statement = statement->next;
261 static void print_return_statement(const return_statement_t *statement)
263 fprintf(out, "return ");
264 if(statement->return_value != NULL)
265 print_expression(statement->return_value);
269 static void print_expression_statement(const expression_statement_t *statement)
271 print_expression(statement->expression);
275 static void print_goto_statement(const goto_statement_t *statement)
277 fprintf(out, "goto ");
278 if(statement->label != NULL) {
279 fprintf(out, "%s", statement->label->symbol->string);
281 fprintf(out, "?%s", statement->label_symbol->string);
286 static void print_label_statement(const label_statement_t *statement)
288 fprintf(out, "%s:\n", statement->symbol->string);
291 static void print_if_statement(const if_statement_t *statement)
294 print_expression(statement->condition);
296 if(statement->true_statement != NULL) {
297 print_statement(statement->true_statement);
300 if(statement->false_statement != NULL) {
303 print_statement(statement->false_statement);
307 static void print_switch_statement(const switch_statement_t *statement)
309 fputs("switch(", out);
310 print_expression(statement->expression);
312 print_statement(statement->body);
315 static void print_case_label(const case_label_statement_t *statement)
317 if(statement->expression == NULL) {
318 fputs("default:\n", out);
321 print_expression(statement->expression);
326 static void print_declaration_statement(
327 const declaration_statement_t *statement)
329 declaration_t *declaration = statement->declarations_begin;
330 for( ; declaration != statement->declarations_end->next;
331 declaration = declaration->next) {
332 print_declaration(declaration);
336 static void print_while_statement(const while_statement_t *statement)
338 fputs("while(", out);
339 print_expression(statement->condition);
341 print_statement(statement->body);
344 static void print_do_while_statement(const do_while_statement_t *statement)
347 print_statement(statement->body);
349 fputs("while(", out);
350 print_expression(statement->condition);
354 static void print_for_statemenet(const for_statement_t *statement)
356 fprintf(out, "for(TODO) ");
357 print_statement(statement->body);
360 void print_statement(const statement_t *statement)
362 switch(statement->type) {
363 case STATEMENT_COMPOUND:
364 print_compound_statement((const compound_statement_t*) statement);
366 case STATEMENT_RETURN:
367 print_return_statement((const return_statement_t*) statement);
369 case STATEMENT_EXPRESSION:
370 print_expression_statement((const expression_statement_t*) statement);
372 case STATEMENT_LABEL:
373 print_label_statement((const label_statement_t*) statement);
376 print_goto_statement((const goto_statement_t*) statement);
378 case STATEMENT_CONTINUE:
379 fputs("continue;\n", out);
381 case STATEMENT_BREAK:
382 fputs("break;\n", out);
385 print_if_statement((const if_statement_t*) statement);
387 case STATEMENT_SWITCH:
388 print_switch_statement((const switch_statement_t*) statement);
390 case STATEMENT_CASE_LABEL:
391 print_case_label((const case_label_statement_t*) statement);
393 case STATEMENT_DECLARATION:
394 print_declaration_statement((const declaration_statement_t*) statement);
396 case STATEMENT_WHILE:
397 print_while_statement((const while_statement_t*) statement);
399 case STATEMENT_DO_WHILE:
400 print_do_while_statement((const do_while_statement_t*) statement);
403 print_for_statemenet((const for_statement_t*) statement);
405 case STATEMENT_INVALID:
406 fprintf(out, "*invalid statement*");
411 static void print_storage_class(storage_class_t storage_class)
413 switch(storage_class) {
414 case STORAGE_CLASS_ENUM_ENTRY:
415 case STORAGE_CLASS_NONE:
417 case STORAGE_CLASS_TYPEDEF: fputs("typedef ", out); break;
418 case STORAGE_CLASS_EXTERN: fputs("extern ", out); break;
419 case STORAGE_CLASS_STATIC: fputs("static ", out); break;
420 case STORAGE_CLASS_AUTO: fputs("auto ", out); break;
421 case STORAGE_CLASS_REGISTER: fputs("register ", out); break;
425 static void print_declaration(const declaration_t *declaration)
427 print_storage_class(declaration->storage_class);
428 print_type_ext(declaration->type, declaration->symbol,
429 &declaration->context);
430 if(declaration->statement != NULL) {
432 print_statement(declaration->statement);
433 } else if(declaration->initializer != NULL) {
435 print_expression(declaration->initializer);
442 void print_ast(const translation_unit_t *unit)
444 declaration_t *declaration = unit->context.declarations;
445 while(declaration != NULL) {
446 print_declaration(declaration);
448 declaration = declaration->next;
454 obstack_init(&ast_obstack);
459 obstack_free(&ast_obstack, NULL);
462 void ast_set_output(FILE *stream)
465 type_set_output(stream);
468 void* (allocate_ast) (size_t size)
470 return _allocate_ast(size);