X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ast.c;h=3721cc5af1be54f684accff3a99c8b3829119a07;hb=b8df54059f5ceb0bb6c767aaaf94840dc0b38e25;hp=f2bc587276ce9cf94d27398a2826150593b4175c;hpb=3e3bf65b33ece40f474c91dac37cf8ea716a5b03;p=cparser

diff --git a/ast.c b/ast.c
index f2bc587..3721cc5 100644
--- a/ast.c
+++ b/ast.c
@@ -6,6 +6,7 @@
 #include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <ctype.h>
 
 #include "adt/error.h"
 
@@ -13,32 +14,115 @@ struct obstack ast_obstack;
 
 static FILE *out;
 static int   indent;
+static int   print_implicit_casts = 1;
 
 static void print_statement(const statement_t *statement);
 
-static void print_indent(void)
+void change_indent(int delta)
+{
+	indent += delta;
+	assert(indent >= 0);
+}
+
+void print_indent(void)
 {
 	for(int i = 0; i < indent; ++i)
 		fprintf(out, "\t");
 }
 
-static
-void print_const(const const_t *cnst)
+static void print_const(const const_expression_t *cnst)
+{
+	if(cnst->expression.datatype == NULL)
+		return;
+
+	if(is_type_integer(cnst->expression.datatype)) {
+		fprintf(out, "%lld", cnst->v.int_value);
+	} else if(is_type_float(cnst->expression.datatype)) {
+		fprintf(out, "%Lf", cnst->v.float_value);
+	}
+}
+
+static void print_quoted_string(const string_t *const string)
 {
-	fprintf(out, "%d", cnst->value);
+	fputc('"', out);
+	for (const char *c = string->begin, *const end = c + string->size; c != end; ++c) {
+		switch(*c) {
+		case '\"':  fputs("\\\"", out); break;
+		case '\\':  fputs("\\\\", out); break;
+		case '\a':  fputs("\\a", out); break;
+		case '\b':  fputs("\\b", out); break;
+		case '\f':  fputs("\\f", out); break;
+		case '\n':  fputs("\\n", out); break;
+		case '\r':  fputs("\\r", out); break;
+		case '\t':  fputs("\\t", out); break;
+		case '\v':  fputs("\\v", out); break;
+		case '\?':  fputs("\\?", out); break;
+		default:
+			if(!isprint(*c)) {
+				fprintf(out, "\\%03o", *c);
+				break;
+			}
+			fputc(*c, out);
+			break;
+		}
+	}
+	fputc('"', out);
 }
 
-static
-void print_string_literal(const string_literal_t *string_literal)
+static void print_string_literal(
+		const string_literal_expression_t *string_literal)
 {
-	/* TODO escape " and non-printable chars */
-	fprintf(out, "\"%s\"", string_literal->value);
+	print_quoted_string(&string_literal->value);
+}
+
+static void print_wide_string_literal(
+	const wide_string_literal_expression_t *const wstr)
+{
+	fputs("L\"", out);
+	for (const wchar_rep_t *c   = wstr->value.begin,
+	                       *end = c + wstr->value.size;
+	     c != end; ++c) {
+		switch (*c) {
+			case L'\"':  fputs("\\\"", out); break;
+			case L'\\':  fputs("\\\\", out); break;
+			case L'\a':  fputs("\\a",  out); break;
+			case L'\b':  fputs("\\b",  out); break;
+			case L'\f':  fputs("\\f",  out); break;
+			case L'\n':  fputs("\\n",  out); break;
+			case L'\r':  fputs("\\r",  out); break;
+			case L'\t':  fputs("\\t",  out); break;
+			case L'\v':  fputs("\\v",  out); break;
+			case L'\?':  fputs("\\?",  out); break;
+			default: {
+				const unsigned tc = *c;
+				if (tc < 0x80U) {
+					if (!isprint(*c))  {
+						fprintf(out, "\\%03o", (char)*c);
+					} else {
+						fputc(*c, out);
+					}
+				} else if (tc < 0x800) {
+					fputc(0xC0 | (tc >> 6),   out);
+					fputc(0x80 | (tc & 0x3F), out);
+				} else if (tc < 0x10000) {
+					fputc(0xE0 | ( tc >> 12),         out);
+					fputc(0x80 | ((tc >>  6) & 0x3F), out);
+					fputc(0x80 | ( tc        & 0x3F), out);
+				} else {
+					fputc(0xF0 | ( tc >> 18),         out);
+					fputc(0x80 | ((tc >> 12) & 0x3F), out);
+					fputc(0x80 | ((tc >>  6) & 0x3F), out);
+					fputc(0x80 | ( tc        & 0x3F), out);
+				}
+			}
+		}
+	}
+	fputc('"', out);
 }
 
-static
-void print_call_expression(const call_expression_t *call)
+static void print_call_expression(const call_expression_t *call)
 {
-	print_expression(call->method);
+	print_expression(call->function);
 	fprintf(out, "(");
 	call_argument_t *argument = call->arguments;
 	int              first    = 1;
@@ -55,91 +139,338 @@ void print_call_expression(const call_expression_t *call)
 	fprintf(out, ")");
 }
 
-static
-void print_binary_expression(const binary_expression_t *binexpr)
+static void print_binary_expression(const binary_expression_t *binexpr)
 {
+	if(binexpr->expression.kind == EXPR_BINARY_BUILTIN_EXPECT) {
+		fputs("__builtin_expect(", out);
+		print_expression(binexpr->left);
+		fputs(", ", out);
+		print_expression(binexpr->right);
+		fputs(")", out);
+		return;
+	}
+
 	fprintf(out, "(");
 	print_expression(binexpr->left);
 	fprintf(out, " ");
-	switch(binexpr->type) {
-	case BINEXPR_INVALID:
-		fprintf(out, "INVOP");
-		break;
-	case BINEXPR_ASSIGN:
-		fprintf(out, "<-");
-		break;
-	case BINEXPR_ADD:
-		fprintf(out, "+");
-		break;
-	case BINEXPR_SUB:
-		fprintf(out, "-");
-		break;
-	case BINEXPR_NOTEQUAL:
-		fprintf(out, "/=");
-		break;
-	case BINEXPR_EQUAL:
-		fprintf(out, "=");
-		break;
-	case BINEXPR_LESS:
-		fprintf(out, "<");
-		break;
-	case BINEXPR_LESSEQUAL:
-		fprintf(out, "<=");
-		break;
-	case BINEXPR_GREATER:
-		fprintf(out, ">");
-		break;
-	case BINEXPR_GREATEREQUAL:
-		fprintf(out, ">=");
-		break;
-	default:
-		/* TODO: add missing ops */
-		fprintf(out, "op%d", binexpr->type);
-		break;
+	switch(binexpr->expression.kind) {
+	case EXPR_BINARY_COMMA:              fputs(",", out);     break;
+	case EXPR_BINARY_ASSIGN:             fputs("=", out);     break;
+	case EXPR_BINARY_ADD:                fputs("+", out);     break;
+	case EXPR_BINARY_SUB:                fputs("-", out);     break;
+	case EXPR_BINARY_MUL:                fputs("*", out);     break;
+	case EXPR_BINARY_MOD:                fputs("%", out);     break;
+	case EXPR_BINARY_DIV:                fputs("/", out);     break;
+	case EXPR_BINARY_BITWISE_OR:         fputs("|", out);     break;
+	case EXPR_BINARY_BITWISE_AND:        fputs("&", out);     break;
+	case EXPR_BINARY_BITWISE_XOR:        fputs("^", out);     break;
+	case EXPR_BINARY_LOGICAL_OR:         fputs("||", out);    break;
+	case EXPR_BINARY_LOGICAL_AND:        fputs("&&", out);    break;
+	case EXPR_BINARY_NOTEQUAL:           fputs("!=", out);    break;
+	case EXPR_BINARY_EQUAL:              fputs("==", out);    break;
+	case EXPR_BINARY_LESS:               fputs("<", out);     break;
+	case EXPR_BINARY_LESSEQUAL:          fputs("<=", out);    break;
+	case EXPR_BINARY_GREATER:            fputs(">", out);     break;
+	case EXPR_BINARY_GREATEREQUAL:       fputs(">=", out);    break;
+	case EXPR_BINARY_SHIFTLEFT:          fputs("<<", out);    break;
+	case EXPR_BINARY_SHIFTRIGHT:         fputs(">>", out);    break;
+
+	case EXPR_BINARY_ADD_ASSIGN:         fputs("+=", out);    break;
+	case EXPR_BINARY_SUB_ASSIGN:         fputs("-=", out);    break;
+	case EXPR_BINARY_MUL_ASSIGN:         fputs("*=", out);    break;
+	case EXPR_BINARY_MOD_ASSIGN:         fputs("%=", out);    break;
+	case EXPR_BINARY_DIV_ASSIGN:         fputs("/=", out);    break;
+	case EXPR_BINARY_BITWISE_OR_ASSIGN:  fputs("|=", out);    break;
+	case EXPR_BINARY_BITWISE_AND_ASSIGN: fputs("&=", out);    break;
+	case EXPR_BINARY_BITWISE_XOR_ASSIGN: fputs("^=", out);    break;
+	case EXPR_BINARY_SHIFTLEFT_ASSIGN:   fputs("<<=", out);   break;
+	case EXPR_BINARY_SHIFTRIGHT_ASSIGN:  fputs(">>=", out);   break;
+	default: panic("invalid binexpression found");
 	}
 	fprintf(out, " ");
 	print_expression(binexpr->right);
 	fprintf(out, ")");
 }
 
+static void print_unary_expression(const unary_expression_t *unexpr)
+{
+	switch(unexpr->expression.kind) {
+	case EXPR_UNARY_NEGATE:           fputs("-", out);  break;
+	case EXPR_UNARY_PLUS:             fputs("+", out);  break;
+	case EXPR_UNARY_NOT:              fputs("!", out);  break;
+	case EXPR_UNARY_BITWISE_NEGATE:   fputs("~", out);  break;
+	case EXPR_UNARY_PREFIX_INCREMENT: fputs("++", out); break;
+	case EXPR_UNARY_PREFIX_DECREMENT: fputs("--", out); break;
+	case EXPR_UNARY_DEREFERENCE:      fputs("*", out);  break;
+	case EXPR_UNARY_TAKE_ADDRESS:     fputs("&", out);  break;
+
+	case EXPR_UNARY_BITFIELD_EXTRACT:
+		print_expression(unexpr->value);
+		return;
+
+	case EXPR_UNARY_POSTFIX_INCREMENT:
+		fputs("(", out);
+		print_expression(unexpr->value);
+		fputs(")", out);
+		fputs("++", out);
+		return;
+	case EXPR_UNARY_POSTFIX_DECREMENT:
+		fputs("(", out);
+		print_expression(unexpr->value);
+		fputs(")", out);
+		fputs("--", out);
+		return;
+	case EXPR_UNARY_CAST_IMPLICIT:
+		if(!print_implicit_casts) {
+			print_expression(unexpr->value);
+			return;
+		}
+		/* fallthrough */
+	case EXPR_UNARY_CAST:
+		fputs("(", out);
+		print_type(unexpr->expression.datatype);
+		fputs(")", out);
+		break;
+	case EXPR_UNARY_ASSUME:
+		fputs("__assume", out);
+		break;
+	default:
+		panic("invalid unary expression found");
+	}
+	fputs("(", out);
+	print_expression(unexpr->value);
+	fputs(")", out);
+}
+
 static void print_reference_expression(const reference_expression_t *ref)
 {
 	fprintf(out, "%s", ref->declaration->symbol->string);
 }
 
+static void print_array_expression(const array_access_expression_t *expression)
+{
+	if(!expression->flipped) {
+		fputs("(", out);
+		print_expression(expression->array_ref);
+		fputs(")[", out);
+		print_expression(expression->index);
+		fputs("]", out);
+	} else {
+		fputs("(", out);
+		print_expression(expression->index);
+		fputs(")[", out);
+		print_expression(expression->array_ref);
+		fputs("]", out);
+	}
+}
+
+static void print_sizeof_expression(const sizeof_expression_t *expression)
+{
+	fputs("sizeof", out);
+	if(expression->size_expression != NULL) {
+		fputc('(', out);
+		print_expression(expression->size_expression);
+		fputc(')', out);
+	} else {
+		fputc('(', out);
+		print_type(expression->type);
+		fputc(')', out);
+	}
+}
+
+static void print_alignof_expression(const alignof_expression_t *expression)
+{
+	fputs("__alignof__(", out);
+	print_type(expression->type);
+	fputc(')', out);
+}
+
+static void print_builtin_symbol(const builtin_symbol_expression_t *expression)
+{
+	fputs(expression->symbol->string, out);
+}
+
+static void print_builtin_constant(const builtin_constant_expression_t *expression)
+{
+	fputs("__builtin_constant_p(", out);
+	print_expression(expression->value);
+	fputc(')', out);
+}
+
+static void print_builtin_prefetch(const builtin_prefetch_expression_t *expression)
+{
+	fputs("__builtin_prefetch(", out);
+	print_expression(expression->adr);
+	if (expression->rw) {
+		fputc(',', out);
+		print_expression(expression->rw);
+	}
+	if (expression->locality) {
+		fputc(',', out);
+		print_expression(expression->locality);
+	}
+	fputc(')', out);
+}
+
+static void print_conditional(const conditional_expression_t *expression)
+{
+	fputs("(", out);
+	print_expression(expression->condition);
+	fputs(" ? ", out);
+	print_expression(expression->true_expression);
+	fputs(" : ", out);
+	print_expression(expression->false_expression);
+	fputs(")", out);
+}
+
+static void print_va_start(const va_start_expression_t *const expression)
+{
+	fputs("__builtin_va_start(", out);
+	print_expression(expression->ap);
+	fputs(", ", out);
+	fputs(expression->parameter->symbol->string, out);
+	fputs(")", out);
+}
+
+static void print_va_arg(const va_arg_expression_t *expression)
+{
+	fputs("__builtin_va_arg(", out);
+	print_expression(expression->ap);
+	fputs(", ", out);
+	print_type(expression->expression.datatype);
+	fputs(")", out);
+}
+
+static void print_select(const select_expression_t *expression)
+{
+	print_expression(expression->compound);
+	if(expression->compound->base.datatype == NULL ||
+			expression->compound->base.datatype->kind == TYPE_POINTER) {
+		fputs("->", out);
+	} else {
+		fputc('.', out);
+	}
+	fputs(expression->symbol->string, out);
+}
+
+static void print_classify_type_expression(
+	const classify_type_expression_t *const expr)
+{
+	fputs("__builtin_classify_type(", out);
+	print_expression(expr->type_expression);
+	fputc(')', out);
+}
+
+static void print_designator(const designator_t *designator)
+{
+	fputs(designator->symbol->string, out);
+	for (designator = designator->next; designator != NULL; designator = designator->next) {
+		if (designator->array_access) {
+			fputc('[', out);
+			print_expression(designator->array_access);
+			fputc(']', out);
+		} else {
+			fputc('.', out);
+			fputs(designator->symbol->string, out);
+		}
+	}
+}
+
+static void print_offsetof_expression(const offsetof_expression_t *expression)
+{
+	fputs("__builtin_offsetof", out);
+	fputc('(', out);
+	print_type(expression->type);
+	fputc(',', out);
+	print_designator(expression->designator);
+	fputc(')', out);
+}
+
+static void print_statement_expression(const statement_expression_t *expression)
+{
+	fputc('(', out);
+	print_statement(expression->statement);
+	fputc(')', out);
+}
+
 void print_expression(const expression_t *expression)
 {
-	switch(expression->type) {
+	switch(expression->kind) {
+	case EXPR_UNKNOWN:
 	case EXPR_INVALID:
 		fprintf(out, "*invalid expression*");
 		break;
 	case EXPR_CONST:
-		print_const((const const_t*) expression);
+		print_const(&expression->conste);
 		break;
+	case EXPR_FUNCTION:
+	case EXPR_PRETTY_FUNCTION:
 	case EXPR_STRING_LITERAL:
-		print_string_literal((const string_literal_t*) expression);
+		print_string_literal(&expression->string);
+		break;
+	case EXPR_WIDE_STRING_LITERAL:
+		print_wide_string_literal(&expression->wide_string);
 		break;
 	case EXPR_CALL:
-		print_call_expression((const call_expression_t*) expression);
+		print_call_expression(&expression->call);
 		break;
-	case EXPR_BINARY:
-		print_binary_expression((const binary_expression_t*) expression);
+	EXPR_BINARY_CASES
+		print_binary_expression(&expression->binary);
 		break;
 	case EXPR_REFERENCE:
-		print_reference_expression((const reference_expression_t*) expression);
+		print_reference_expression(&expression->reference);
 		break;
-	case EXPR_UNARY:
-	case EXPR_SELECT:
 	case EXPR_ARRAY_ACCESS:
+		print_array_expression(&expression->array_access);
+		break;
+	EXPR_UNARY_CASES
+		print_unary_expression(&expression->unary);
+		break;
 	case EXPR_SIZEOF:
+		print_sizeof_expression(&expression->sizeofe);
+		break;
+	case EXPR_ALIGNOF:
+		print_alignof_expression(&expression->alignofe);
+		break;
+	case EXPR_BUILTIN_SYMBOL:
+		print_builtin_symbol(&expression->builtin_symbol);
+		break;
+	case EXPR_BUILTIN_CONSTANT_P:
+		print_builtin_constant(&expression->builtin_constant);
+		break;
+	case EXPR_BUILTIN_PREFETCH:
+		print_builtin_prefetch(&expression->builtin_prefetch);
+		break;
+	case EXPR_CONDITIONAL:
+		print_conditional(&expression->conditional);
+		break;
+	case EXPR_VA_START:
+		print_va_start(&expression->va_starte);
+		break;
+	case EXPR_VA_ARG:
+		print_va_arg(&expression->va_arge);
+		break;
+	case EXPR_SELECT:
+		print_select(&expression->select);
+		break;
+	case EXPR_CLASSIFY_TYPE:
+		print_classify_type_expression(&expression->classify_type);
+		break;
+	case EXPR_OFFSETOF:
+		print_offsetof_expression(&expression->offsetofe);
+		break;
+	case EXPR_STATEMENT:
+		print_statement_expression(&expression->statement);
+		break;
+
+	default:
 		/* TODO */
-		fprintf(out, "some expression of type %d", expression->type);
+		fprintf(out, "some expression of type %d", (int) expression->kind);
 		break;
 	}
 }
 
-static
-void print_compound_statement(const compound_statement_t *block)
+static void print_compound_statement(const compound_statement_t *block)
 {
 	fputs("{\n", out);
 	indent++;
@@ -149,15 +480,14 @@ void print_compound_statement(const compound_statement_t *block)
 		print_indent();
 		print_statement(statement);
 
-		statement = statement->next;
+		statement = statement->base.next;
 	}
 	indent--;
 	print_indent();
 	fputs("}\n", out);
 }
 
-static
-void print_return_statement(const return_statement_t *statement)
+static void print_return_statement(const return_statement_t *statement)
 {
 	fprintf(out, "return ");
 	if(statement->return_value != NULL)
@@ -165,153 +495,462 @@ void print_return_statement(const return_statement_t *statement)
 	fputs(";\n", out);
 }
 
-static
-void print_expression_statement(const expression_statement_t *statement)
+static void print_expression_statement(const expression_statement_t *statement)
 {
 	print_expression(statement->expression);
+	fputs(";\n", out);
 }
 
-static
-void print_goto_statement(const goto_statement_t *statement)
+static void print_goto_statement(const goto_statement_t *statement)
 {
 	fprintf(out, "goto ");
-	if(statement->label != NULL) {
-		fprintf(out, "%s", statement->label->symbol->string);
-	} else {
-		fprintf(out, "?%s", statement->label_symbol->string);
-	}
+	fputs(statement->label->symbol->string, out);
+	fprintf(stderr, "(%p)", (void*) statement->label);
 	fputs(";\n", out);
 }
 
-static
-void print_label_statement(const label_statement_t *statement)
+static void print_label_statement(const label_statement_t *statement)
 {
-	fprintf(out, "%s:\n", statement->symbol->string);
+	fprintf(stderr, "(%p)", (void*) statement->label);
+	fprintf(out, "%s:\n", statement->label->symbol->string);
+	if(statement->label_statement != NULL) {
+		print_statement(statement->label_statement);
+	}
 }
 
-static
-void print_if_statement(const if_statement_t *statement)
+static void print_if_statement(const if_statement_t *statement)
 {
-	fprintf(out, "if(");
+	fputs("if(", out);
 	print_expression(statement->condition);
-	fprintf(out, ") ");
+	fputs(") ", out);
 	if(statement->true_statement != NULL) {
 		print_statement(statement->true_statement);
 	}
 
 	if(statement->false_statement != NULL) {
 		print_indent();
-		fprintf(out, "else ");
+		fputs("else ", out);
 		print_statement(statement->false_statement);
 	}
 }
 
-static
-void print_declaration_statement(const declaration_statement_t *statement)
+static void print_switch_statement(const switch_statement_t *statement)
+{
+	fputs("switch(", out);
+	print_expression(statement->expression);
+	fputs(") ", out);
+	print_statement(statement->body);
+}
+
+static void print_case_label(const case_label_statement_t *statement)
+{
+	if(statement->expression == NULL) {
+		fputs("default:\n", out);
+	} else {
+		fputs("case ", out);
+		print_expression(statement->expression);
+		fputs(":\n", out);
+	}
+	print_statement(statement->label_statement);
+}
+
+static void print_declaration_statement(
+		const declaration_statement_t *statement)
+{
+	int first = 1;
+	declaration_t *declaration = statement->declarations_begin;
+	for( ; declaration != statement->declarations_end->next;
+	       declaration = declaration->next) {
+		if(!first) {
+			print_indent();
+		} else {
+			first = 0;
+		}
+		print_declaration(declaration);
+		fputc('\n', out);
+	}
+}
+
+static void print_while_statement(const while_statement_t *statement)
 {
-	(void) statement;
-	fprintf(out, "*declaration statement*");
+	fputs("while(", out);
+	print_expression(statement->condition);
+	fputs(") ", out);
+	print_statement(statement->body);
+}
+
+static void print_do_while_statement(const do_while_statement_t *statement)
+{
+	fputs("do ", out);
+	print_statement(statement->body);
+	print_indent();
+	fputs("while(", out);
+	print_expression(statement->condition);
+	fputs(");\n", out);
+}
+
+static void print_for_statement(const for_statement_t *statement)
+{
+	fputs("for(", out);
+	if(statement->scope.declarations != NULL) {
+		assert(statement->initialisation == NULL);
+		print_declaration(statement->scope.declarations);
+		if(statement->scope.declarations->next != NULL) {
+			panic("multiple declarations in for statement not supported yet");
+		}
+		fputc(' ', out);
+	} else {
+		if(statement->initialisation) {
+			print_expression(statement->initialisation);
+		}
+		fputs("; ", out);
+	}
+	if(statement->condition != NULL) {
+		print_expression(statement->condition);
+	}
+	fputs("; ", out);
+	if(statement->step != NULL) {
+		print_expression(statement->step);
+	}
+	fputs(")", out);
+	print_statement(statement->body);
+}
+
+static void print_asm_constraints(asm_constraint_t *constraints)
+{
+	asm_constraint_t *constraint = constraints;
+	for( ; constraint != NULL; constraint = constraint->next) {
+		if(constraint != constraints)
+			fputs(", ", out);
+
+		if(constraint->symbol) {
+			fprintf(out, "[%s] ", constraint->symbol->string);
+		}
+		print_quoted_string(&constraint->constraints);
+		fputs(" (", out);
+		print_expression(constraint->expression);
+		fputs(")", out);
+	}
+}
+
+static void print_asm_clobbers(asm_clobber_t *clobbers)
+{
+	asm_clobber_t *clobber = clobbers;
+	for( ; clobber != NULL; clobber = clobber->next) {
+		if(clobber != clobbers)
+			fputs(", ", out);
+
+		print_quoted_string(&clobber->clobber);
+	}
+}
+
+static void print_asm_statement(const asm_statement_t *statement)
+{
+	fputs("asm ", out);
+	if(statement->is_volatile) {
+		fputs("volatile ", out);
+	}
+	fputs("(", out);
+	print_quoted_string(&statement->asm_text);
+	if(statement->inputs == NULL && statement->outputs == NULL
+			&& statement->clobbers == NULL)
+		goto end_of_print_asm_statement;
+
+	fputs(" : ", out);
+	print_asm_constraints(statement->inputs);
+	if(statement->outputs == NULL && statement->clobbers == NULL)
+		goto end_of_print_asm_statement;
+
+	fputs(" : ", out);
+	print_asm_constraints(statement->outputs);
+	if(statement->clobbers == NULL)
+		goto end_of_print_asm_statement;
+
+	fputs(" : ", out);
+	print_asm_clobbers(statement->clobbers);
+
+end_of_print_asm_statement:
+	fputs(");\n", out);
 }
 
 void print_statement(const statement_t *statement)
 {
-	switch(statement->type) {
+	switch(statement->kind) {
 	case STATEMENT_COMPOUND:
-		print_compound_statement((const compound_statement_t*) statement);
+		print_compound_statement(&statement->compound);
 		break;
 	case STATEMENT_RETURN:
-		print_return_statement((const return_statement_t*) statement);
+		print_return_statement(&statement->returns);
 		break;
 	case STATEMENT_EXPRESSION:
-		print_expression_statement((const expression_statement_t*) statement);
+		print_expression_statement(&statement->expression);
 		break;
 	case STATEMENT_LABEL:
-		print_label_statement((const label_statement_t*) statement);
+		print_label_statement(&statement->label);
 		break;
 	case STATEMENT_GOTO:
-		print_goto_statement((const goto_statement_t*) statement);
+		print_goto_statement(&statement->gotos);
+		break;
+	case STATEMENT_CONTINUE:
+		fputs("continue;\n", out);
+		break;
+	case STATEMENT_BREAK:
+		fputs("break;\n", out);
 		break;
 	case STATEMENT_IF:
-		print_if_statement((const if_statement_t*) statement);
+		print_if_statement(&statement->ifs);
+		break;
+	case STATEMENT_SWITCH:
+		print_switch_statement(&statement->switchs);
+		break;
+	case STATEMENT_CASE_LABEL:
+		print_case_label(&statement->case_label);
 		break;
 	case STATEMENT_DECLARATION:
-		print_declaration_statement((const declaration_statement_t*) statement);
+		print_declaration_statement(&statement->declaration);
+		break;
+	case STATEMENT_WHILE:
+		print_while_statement(&statement->whiles);
+		break;
+	case STATEMENT_DO_WHILE:
+		print_do_while_statement(&statement->do_while);
+		break;
+	case STATEMENT_FOR:
+		print_for_statement(&statement->fors);
+		break;
+	case STATEMENT_ASM:
+		print_asm_statement(&statement->asms);
 		break;
 	case STATEMENT_INVALID:
-	default:
 		fprintf(out, "*invalid statement*");
 		break;
-
 	}
 }
 
-#if 0
-static
-void print_method_parameters(const method_parameter_t *parameters,
-                             const method_type_t *method_type)
+static void print_storage_class(unsigned storage_class)
 {
-	fprintf(out, "(");
+	switch((storage_class_tag_t) storage_class) {
+	case STORAGE_CLASS_ENUM_ENTRY:
+	case STORAGE_CLASS_NONE:
+		break;
+	case STORAGE_CLASS_TYPEDEF:       fputs("typedef ",        out); break;
+	case STORAGE_CLASS_EXTERN:        fputs("extern ",         out); break;
+	case STORAGE_CLASS_STATIC:        fputs("static ",         out); break;
+	case STORAGE_CLASS_AUTO:          fputs("auto ",           out); break;
+	case STORAGE_CLASS_REGISTER:      fputs("register ",       out); break;
+	case STORAGE_CLASS_THREAD:        fputs("__thread",        out); break;
+	case STORAGE_CLASS_THREAD_EXTERN: fputs("extern __thread", out); break;
+	case STORAGE_CLASS_THREAD_STATIC: fputs("static __thread", out); break;
+	}
+}
 
-	int                            first          = 1;
-	const method_parameter_t      *parameter      = parameters;
-	const method_parameter_type_t *parameter_type
-		= method_type->parameter_types;
-	while(parameter != NULL && parameter_type != NULL) {
-		if(!first) {
-			fprintf(out, ", ");
-		} else {
-			first = 0;
-		}
+void print_initializer(const initializer_t *initializer)
+{
+	if(initializer->kind == INITIALIZER_VALUE) {
+		const initializer_value_t *value = &initializer->value;
+		print_expression(value->value);
+		return;
+	}
 
-		print_type(parameter_type->type);
-		fprintf(out, " %s", parameter->symbol->string);
+	assert(initializer->kind == INITIALIZER_LIST);
+	fputs("{ ", out);
+	const initializer_list_t *list = &initializer->list;
 
-		parameter      = parameter->next;
-		parameter_type = parameter_type->next;
+	for(size_t i = 0 ; i < list->len; ++i) {
+		if(i > 0) {
+			fputs(", ", out);
+		}
+		print_initializer(list->initializers[i]);
 	}
-	assert(parameter == NULL && parameter_type == NULL);
-
-	fprintf(out, ")");
+	fputs("}", out);
 }
-#endif
 
-static
-void print_storage_class(storage_class_t storage_class)
+static void print_normal_declaration(const declaration_t *declaration)
 {
-	switch(storage_class) {
-	case STORAGE_CLASS_NONE:
-		break;
-	case STORAGE_CLASS_TYPEDEF:  fputs("typedef ", out); break;
-	case STORAGE_CLASS_EXTERN:   fputs("extern ", out); break;
-	case STORAGE_CLASS_STATIC:   fputs("static ", out); break;
-	case STORAGE_CLASS_AUTO:     fputs("auto ", out); break;
-	case STORAGE_CLASS_REGISTER: fputs("register ", out); break;
+	print_storage_class(declaration->storage_class);
+	if(declaration->is_inline) {
+		if (declaration->modifiers & DM_FORCEINLINE)
+			fputs("__forceinline ", out);
+		else
+			fputs("inline ", out);
 	}
+	print_type_ext(declaration->type, declaration->symbol,
+	               &declaration->scope);
+
+	if(declaration->type->kind == TYPE_FUNCTION) {
+		if(declaration->init.statement != NULL) {
+			fputs("\n", out);
+			print_statement(declaration->init.statement);
+			return;
+		}
+	} else if(declaration->init.initializer != NULL) {
+		fputs(" = ", out);
+		print_initializer(declaration->init.initializer);
+	}
+	fputc(';', out);
 }
 
-static
 void print_declaration(const declaration_t *declaration)
 {
-	print_storage_class(declaration->storage_class);
-	print_type(declaration->type, declaration->symbol);
-	if(declaration->statement != NULL) {
-		fputs("\n", out);
-		print_statement(declaration->statement);
-	} else {
-		fprintf(out, ";\n");
+	if(declaration->namespc != NAMESPACE_NORMAL &&
+			declaration->symbol == NULL)
+		return;
+
+	switch(declaration->namespc) {
+	case NAMESPACE_NORMAL:
+		print_normal_declaration(declaration);
+		break;
+	case NAMESPACE_STRUCT:
+		fputs("struct ", out);
+		fputs(declaration->symbol->string, out);
+		fputc(' ', out);
+		print_compound_definition(declaration);
+		fputc(';', out);
+		break;
+	case NAMESPACE_UNION:
+		fputs("union ", out);
+		fputs(declaration->symbol->string, out);
+		fputc(' ', out);
+		print_compound_definition(declaration);
+		fputc(';', out);
+		break;
+	case NAMESPACE_ENUM:
+		fputs("enum ", out);
+		fputs(declaration->symbol->string, out);
+		fputc(' ', out);
+		print_enum_definition(declaration);
+		fputc(';', out);
+		break;
 	}
 }
 
 void print_ast(const translation_unit_t *unit)
 {
-	declaration_t *declaration = unit->context.declarations;
-	while(declaration != NULL) {
+	inc_type_visited();
+
+	declaration_t *declaration = unit->scope.declarations;
+	for( ; declaration != NULL; declaration = declaration->next) {
+		if(declaration->storage_class == STORAGE_CLASS_ENUM_ENTRY)
+			continue;
+		if(declaration->namespc != NAMESPACE_NORMAL &&
+				declaration->symbol == NULL)
+			continue;
+
+		print_indent();
 		print_declaration(declaration);
+		fputc('\n', out);
+	}
+}
 
-		declaration = declaration->next;
+bool is_constant_expression(const expression_t *expression)
+{
+	switch(expression->kind) {
+
+	case EXPR_CONST:
+	case EXPR_STRING_LITERAL:
+	case EXPR_WIDE_STRING_LITERAL:
+	case EXPR_SIZEOF:
+	case EXPR_CLASSIFY_TYPE:
+	case EXPR_FUNCTION:
+	case EXPR_PRETTY_FUNCTION:
+	case EXPR_OFFSETOF:
+	case EXPR_ALIGNOF:
+	case EXPR_BUILTIN_CONSTANT_P:
+		return true;
+
+	case EXPR_BUILTIN_SYMBOL:
+	case EXPR_BUILTIN_PREFETCH:
+	case EXPR_CALL:
+	case EXPR_SELECT:
+	case EXPR_VA_START:
+	case EXPR_VA_ARG:
+	case EXPR_STATEMENT:
+	case EXPR_UNARY_POSTFIX_INCREMENT:
+	case EXPR_UNARY_POSTFIX_DECREMENT:
+	case EXPR_UNARY_PREFIX_INCREMENT:
+	case EXPR_UNARY_PREFIX_DECREMENT:
+	case EXPR_UNARY_BITFIELD_EXTRACT:
+	case EXPR_UNARY_ASSUME: /* has VOID type */
+	case EXPR_BINARY_ASSIGN:
+	case EXPR_BINARY_MUL_ASSIGN:
+	case EXPR_BINARY_DIV_ASSIGN:
+	case EXPR_BINARY_MOD_ASSIGN:
+	case EXPR_BINARY_ADD_ASSIGN:
+	case EXPR_BINARY_SUB_ASSIGN:
+	case EXPR_BINARY_SHIFTLEFT_ASSIGN:
+	case EXPR_BINARY_SHIFTRIGHT_ASSIGN:
+	case EXPR_BINARY_BITWISE_AND_ASSIGN:
+	case EXPR_BINARY_BITWISE_XOR_ASSIGN:
+	case EXPR_BINARY_BITWISE_OR_ASSIGN:
+	case EXPR_BINARY_COMMA:
+		return false;
+
+	case EXPR_UNARY_NEGATE:
+	case EXPR_UNARY_PLUS:
+	case EXPR_UNARY_BITWISE_NEGATE:
+	case EXPR_UNARY_NOT:
+	case EXPR_UNARY_DEREFERENCE:
+	case EXPR_UNARY_TAKE_ADDRESS:
+	case EXPR_UNARY_CAST:
+	case EXPR_UNARY_CAST_IMPLICIT:
+		return is_constant_expression(expression->unary.value);
+
+	case EXPR_BINARY_ADD:
+	case EXPR_BINARY_SUB:
+	case EXPR_BINARY_MUL:
+	case EXPR_BINARY_DIV:
+	case EXPR_BINARY_MOD:
+	case EXPR_BINARY_EQUAL:
+	case EXPR_BINARY_NOTEQUAL:
+	case EXPR_BINARY_LESS:
+	case EXPR_BINARY_LESSEQUAL:
+	case EXPR_BINARY_GREATER:
+	case EXPR_BINARY_GREATEREQUAL:
+	case EXPR_BINARY_BITWISE_AND:
+	case EXPR_BINARY_BITWISE_OR:
+	case EXPR_BINARY_BITWISE_XOR:
+	case EXPR_BINARY_LOGICAL_AND:
+	case EXPR_BINARY_LOGICAL_OR:
+	case EXPR_BINARY_SHIFTLEFT:
+	case EXPR_BINARY_SHIFTRIGHT:
+	case EXPR_BINARY_BUILTIN_EXPECT:
+	case EXPR_BINARY_ISGREATER:
+	case EXPR_BINARY_ISGREATEREQUAL:
+	case EXPR_BINARY_ISLESS:
+	case EXPR_BINARY_ISLESSEQUAL:
+	case EXPR_BINARY_ISLESSGREATER:
+	case EXPR_BINARY_ISUNORDERED:
+		return is_constant_expression(expression->binary.left)
+			&& is_constant_expression(expression->binary.right);
+
+	case EXPR_CONDITIONAL:
+		/* TODO: not correct, we only have to test expressions which are
+		 * evaluated, which means either the true or false part might be not
+		 * constant */
+		return is_constant_expression(expression->conditional.condition)
+			&& is_constant_expression(expression->conditional.true_expression)
+			&& is_constant_expression(expression->conditional.false_expression);
+
+	case EXPR_ARRAY_ACCESS:
+		return is_constant_expression(expression->array_access.array_ref)
+			&& is_constant_expression(expression->array_access.index);
+
+	case EXPR_REFERENCE: {
+		declaration_t *declaration = expression->reference.declaration;
+		if(declaration->storage_class == STORAGE_CLASS_ENUM_ENTRY)
+			return true;
+
+		return false;
+	}
+
+	case EXPR_UNKNOWN:
+	case EXPR_INVALID:
+		break;
 	}
+	panic("invalid expression found (is constant expression)");
 }
 
+
 void init_ast(void)
 {
 	obstack_init(&ast_obstack);