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 fprintf(out, "%d", cnst->value);
32 static void print_string_literal(const string_literal_t *string_literal)
35 for(const char *c = string_literal->value; *c != '\0'; ++c) {
37 case '\"': fputs("\\\"", out); break;
38 case '\\': fputs("\\\\", out); break;
39 case '\a': fputs("\\a", out); break;
40 case '\b': fputs("\\b", out); break;
41 case '\f': fputs("\\f", out); break;
42 case '\n': fputs("\\n", out); break;
43 case '\r': fputs("\\r", out); break;
44 case '\t': fputs("\\t", out); break;
45 case '\v': fputs("\\v", out); break;
46 case '\?': fputs("\\?", out); break;
49 fprintf(out, "\\x%x", *c);
59 static void print_call_expression(const call_expression_t *call)
61 print_expression(call->method);
63 call_argument_t *argument = call->arguments;
65 while(argument != NULL) {
71 print_expression(argument->expression);
73 argument = argument->next;
78 static void print_binary_expression(const binary_expression_t *binexpr)
81 print_expression(binexpr->left);
83 switch(binexpr->type) {
84 case BINEXPR_INVALID: fputs("INVOP", out); break;
85 case BINEXPR_COMMA: fputs(",", out); break;
86 case BINEXPR_ASSIGN: fputs("=", out); break;
87 case BINEXPR_ADD: fputs("+", out); break;
88 case BINEXPR_SUB: fputs("-", out); break;
89 case BINEXPR_MUL: fputs("*", out); break;
90 case BINEXPR_MOD: fputs("%", out); break;
91 case BINEXPR_DIV: fputs("/", out); break;
92 case BINEXPR_BITWISE_OR: fputs("|", out); break;
93 case BINEXPR_BITWISE_AND: fputs("&", out); break;
94 case BINEXPR_BITWISE_XOR: fputs("^", out); break;
95 case BINEXPR_LOGICAL_OR: fputs("||", out); break;
96 case BINEXPR_LOGICAL_AND: fputs("&&", out); break;
97 case BINEXPR_NOTEQUAL: fputs("!=", out); break;
98 case BINEXPR_EQUAL: fputs("==", out); break;
99 case BINEXPR_LESS: fputs("<", out); break;
100 case BINEXPR_LESSEQUAL: fputs("<=", out); break;
101 case BINEXPR_GREATER: fputs(">", out); break;
102 case BINEXPR_GREATEREQUAL: fputs(">=", out); break;
103 case BINEXPR_SHIFTLEFT: fputs("<<", out); break;
104 case BINEXPR_SHIFTRIGHT: fputs(">>", out); break;
106 case BINEXPR_ADD_ASSIGN: fputs("+=", out); break;
107 case BINEXPR_SUB_ASSIGN: fputs("-=", out); break;
108 case BINEXPR_MUL_ASSIGN: fputs("*=", out); break;
109 case BINEXPR_MOD_ASSIGN: fputs("%=", out); break;
110 case BINEXPR_DIV_ASSIGN: fputs("/=", out); break;
111 case BINEXPR_BITWISE_OR_ASSIGN: fputs("|=", out); break;
112 case BINEXPR_BITWISE_AND_ASSIGN: fputs("&=", out); break;
113 case BINEXPR_BITWISE_XOR_ASSIGN: fputs("^=", out); break;
114 case BINEXPR_SHIFTLEFT_ASSIGN: fputs("<<=", out); break;
115 case BINEXPR_SHIFTRIGHT_ASSIGN: fputs(">>=", out); break;
118 print_expression(binexpr->right);
122 static void print_unary_expression(const unary_expression_t *unexpr)
124 switch(unexpr->type) {
125 case UNEXPR_NEGATE: fputs("-", out); break;
126 case UNEXPR_PLUS: fputs("+", out); break;
127 case UNEXPR_NOT: fputs("!", out); break;
128 case UNEXPR_BITWISE_NEGATE: fputs("~", out); break;
129 case UNEXPR_PREFIX_INCREMENT: fputs("++", out); break;
130 case UNEXPR_PREFIX_DECREMENT: fputs("--", out); break;
131 case UNEXPR_DEREFERENCE: fputs("*", out); break;
132 case UNEXPR_TAKE_ADDRESS: fputs("&", out); break;
134 case UNEXPR_POSTFIX_INCREMENT:
136 print_expression(unexpr->value);
140 case UNEXPR_POSTFIX_DECREMENT:
142 print_expression(unexpr->value);
148 print_type(unexpr->expression.datatype);
152 fprintf(out, "unop%d", unexpr->type);
156 print_expression(unexpr->value);
160 static void print_reference_expression(const reference_expression_t *ref)
162 fprintf(out, "%s", ref->declaration->symbol->string);
165 static void print_array_expression(const array_access_expression_t *expression)
168 print_expression(expression->array_ref);
170 print_expression(expression->index);
174 static void print_sizeof_expression(const sizeof_expression_t *expression)
176 fputs("sizeof", out);
177 if(expression->size_expression != NULL) {
179 print_expression(expression->size_expression);
183 print_type(expression->type);
188 void print_expression(const expression_t *expression)
190 switch(expression->type) {
192 fprintf(out, "*invalid expression*");
195 print_const((const const_t*) expression);
198 case EXPR_PRETTY_FUNCTION:
199 case EXPR_STRING_LITERAL:
200 print_string_literal((const string_literal_t*) expression);
203 print_call_expression((const call_expression_t*) expression);
206 print_binary_expression((const binary_expression_t*) expression);
209 print_reference_expression((const reference_expression_t*) expression);
211 case EXPR_ARRAY_ACCESS:
212 print_array_expression((const array_access_expression_t*) expression);
215 print_unary_expression((const unary_expression_t*) expression);
218 print_sizeof_expression((const sizeof_expression_t*) expression);
224 fprintf(out, "some expression of type %d", expression->type);
229 static void print_compound_statement(const compound_statement_t *block)
234 statement_t *statement = block->statements;
235 while(statement != NULL) {
237 print_statement(statement);
239 statement = statement->next;
246 static void print_return_statement(const return_statement_t *statement)
248 fprintf(out, "return ");
249 if(statement->return_value != NULL)
250 print_expression(statement->return_value);
254 static void print_expression_statement(const expression_statement_t *statement)
256 print_expression(statement->expression);
260 static void print_goto_statement(const goto_statement_t *statement)
262 fprintf(out, "goto ");
263 if(statement->label != NULL) {
264 fprintf(out, "%s", statement->label->symbol->string);
266 fprintf(out, "?%s", statement->label_symbol->string);
271 static void print_label_statement(const label_statement_t *statement)
273 fprintf(out, "%s:\n", statement->symbol->string);
276 static void print_if_statement(const if_statement_t *statement)
279 print_expression(statement->condition);
281 if(statement->true_statement != NULL) {
282 print_statement(statement->true_statement);
285 if(statement->false_statement != NULL) {
288 print_statement(statement->false_statement);
292 static void print_switch_statement(const switch_statement_t *statement)
294 fputs("switch(", out);
295 print_expression(statement->expression);
297 print_statement(statement->body);
300 static void print_case_label(const case_label_statement_t *statement)
302 if(statement->expression == NULL) {
303 fputs("default:\n", out);
306 print_expression(statement->expression);
311 static void print_declaration_statement(
312 const declaration_statement_t *statement)
314 declaration_t *declaration = statement->declarations_begin;
315 for( ; declaration != statement->declarations_end->next;
316 declaration = declaration->next) {
317 print_declaration(declaration);
321 static void print_while_statement(const while_statement_t *statement)
323 fputs("while(", out);
324 print_expression(statement->condition);
326 print_statement(statement->body);
329 static void print_do_while_statement(const do_while_statement_t *statement)
332 print_statement(statement->body);
334 fputs("while(", out);
335 print_expression(statement->condition);
339 static void print_for_statemenet(const for_statement_t *statement)
341 fprintf(out, "for(TODO) ");
342 print_statement(statement->body);
345 void print_statement(const statement_t *statement)
347 switch(statement->type) {
348 case STATEMENT_COMPOUND:
349 print_compound_statement((const compound_statement_t*) statement);
351 case STATEMENT_RETURN:
352 print_return_statement((const return_statement_t*) statement);
354 case STATEMENT_EXPRESSION:
355 print_expression_statement((const expression_statement_t*) statement);
357 case STATEMENT_LABEL:
358 print_label_statement((const label_statement_t*) statement);
361 print_goto_statement((const goto_statement_t*) statement);
363 case STATEMENT_CONTINUE:
364 fputs("continue;\n", out);
366 case STATEMENT_BREAK:
367 fputs("break;\n", out);
370 print_if_statement((const if_statement_t*) statement);
372 case STATEMENT_SWITCH:
373 print_switch_statement((const switch_statement_t*) statement);
375 case STATEMENT_CASE_LABEL:
376 print_case_label((const case_label_statement_t*) statement);
378 case STATEMENT_DECLARATION:
379 print_declaration_statement((const declaration_statement_t*) statement);
381 case STATEMENT_WHILE:
382 print_while_statement((const while_statement_t*) statement);
384 case STATEMENT_DO_WHILE:
385 print_do_while_statement((const do_while_statement_t*) statement);
388 print_for_statemenet((const for_statement_t*) statement);
390 case STATEMENT_INVALID:
391 fprintf(out, "*invalid statement*");
396 static void print_storage_class(storage_class_t storage_class)
398 switch(storage_class) {
399 case STORAGE_CLASS_ENUM_ENTRY:
400 case STORAGE_CLASS_NONE:
402 case STORAGE_CLASS_TYPEDEF: fputs("typedef ", out); break;
403 case STORAGE_CLASS_EXTERN: fputs("extern ", out); break;
404 case STORAGE_CLASS_STATIC: fputs("static ", out); break;
405 case STORAGE_CLASS_AUTO: fputs("auto ", out); break;
406 case STORAGE_CLASS_REGISTER: fputs("register ", out); break;
410 static void print_declaration(const declaration_t *declaration)
412 print_storage_class(declaration->storage_class);
413 print_type_ext(declaration->type, declaration->symbol,
414 &declaration->context);
415 if(declaration->statement != NULL) {
417 print_statement(declaration->statement);
418 } else if(declaration->initializer != NULL) {
420 print_expression(declaration->initializer);
427 void print_ast(const translation_unit_t *unit)
429 declaration_t *declaration = unit->context.declarations;
430 while(declaration != NULL) {
431 print_declaration(declaration);
433 declaration = declaration->next;
439 obstack_init(&ast_obstack);
444 obstack_free(&ast_obstack, NULL);
447 void ast_set_output(FILE *stream)
450 type_set_output(stream);
453 void* (allocate_ast) (size_t size)
455 return _allocate_ast(size);