X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ast_t.h;h=15d87358dce61a24f02ab8b8b1d5c3f6e950f82d;hb=103d024a3572a6607bd7d18a129b93d2dbfeff82;hp=7a08c2a1dfc8c0e5cd60d5ee1506bb58bfcbb205;hpb=27040b8042ae6b0ac7974f52abd95d7562da6d9a;p=cparser

diff --git a/ast_t.h b/ast_t.h
index 7a08c2a..15d8735 100644
--- a/ast_t.h
+++ b/ast_t.h
@@ -1,6 +1,6 @@
 /*
  * This file is part of cparser.
- * Copyright (C) 2007-2008 Matthias Braun <matze@braunis.de>
+ * Copyright (C) 2007-2009 Matthias Braun <matze@braunis.de>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -66,9 +66,15 @@ typedef enum expression_kind_t {
 	EXPR_INVALID,
 	EXPR_REFERENCE,
 	EXPR_REFERENCE_ENUM_VALUE,
-	EXPR_CONST,
-	EXPR_CHARACTER_CONSTANT,
-	EXPR_WIDE_CHARACTER_CONSTANT,
+	EXPR_LITERAL_BOOLEAN,
+	EXPR_LITERAL_INTEGER,
+	EXPR_LITERAL_INTEGER_OCTAL,
+	EXPR_LITERAL_INTEGER_HEXADECIMAL,
+	EXPR_LITERAL_FLOATINGPOINT,
+	EXPR_LITERAL_FLOATINGPOINT_HEXADECIMAL,
+	EXPR_LITERAL_CHARACTER,
+	EXPR_LITERAL_WIDE_CHARACTER,
+	EXPR_LITERAL_MS_NOOP, /**< MS __noop extension */
 	EXPR_STRING_LITERAL,
 	EXPR_WIDE_STRING_LITERAL,
 	EXPR_COMPOUND_LITERAL,
@@ -226,6 +232,17 @@ typedef enum funcname_kind_t {
 	EXPR_UNARY_CASES_MANDATORY \
 	EXPR_UNARY_CASES_OPTIONAL
 
+#define EXPR_LITERAL_CASES                        \
+	case EXPR_LITERAL_BOOLEAN:                    \
+	case EXPR_LITERAL_INTEGER:                    \
+	case EXPR_LITERAL_INTEGER_OCTAL:              \
+	case EXPR_LITERAL_INTEGER_HEXADECIMAL:        \
+	case EXPR_LITERAL_FLOATINGPOINT:              \
+	case EXPR_LITERAL_FLOATINGPOINT_HEXADECIMAL:  \
+	case EXPR_LITERAL_CHARACTER:                  \
+	case EXPR_LITERAL_WIDE_CHARACTER:             \
+	case EXPR_LITERAL_MS_NOOP:
+
 /**
  * The base class of every expression.
  */
@@ -233,25 +250,22 @@ struct expression_base_t {
 	expression_kind_t   kind;            /**< The expression kind. */
 	type_t             *type;            /**< The type of the expression. */
 	source_position_t   source_position; /**< The source position of this expression. */
-	bool                parenthesized;
+	bool                parenthesized : 1;
 #ifndef NDEBUG
-	bool                transformed;     /**< Set if this expression was transformed. */
+	bool                transformed : 1;     /**< Set if this expression was transformed. */
 #endif
 };
 
 /**
- * A constant.
+ * integer/float constants, character and string literals
  */
-struct const_expression_t {
+struct literal_expression_t {
 	expression_base_t  base;
-	union {
-		long long      int_value;
-		long double    float_value;
-		string_t       character;
-		wide_string_t  wide_character;
-	} v;
-	bool               is_ms_noop;  /**< True, if this constant is the result
-	                                     of an microsoft __noop operator */
+	string_t           value;
+	symbol_t          *suffix;
+
+	/* ast2firm data */
+	ir_tarval         *target_value;
 };
 
 struct string_literal_expression_t {
@@ -265,11 +279,6 @@ struct funcname_expression_t {
 	string_t           value;     /**< the value once assigned. */
 };
 
-struct wide_string_literal_expression_t {
-	expression_base_t  base;
-	wide_string_t      value;
-};
-
 struct compound_literal_expression_t {
 	expression_base_t  base;
 	type_t            *type;
@@ -323,6 +332,8 @@ struct select_expression_t {
 	expression_base_t  base;
 	expression_t      *compound;
 	entity_t          *compound_entry;
+	bool               implicit : 1; /**< compiler generated select
+	                                      (for anonymous struct/union) */
 };
 
 struct array_access_expression_t {
@@ -393,10 +404,9 @@ struct label_address_expression_t {
 union expression_t {
 	expression_kind_t                     kind;
 	expression_base_t                     base;
-	const_expression_t                    conste;
+	literal_expression_t                  literal;
+	string_literal_expression_t           string_literal;
 	funcname_expression_t                 funcname;
-	string_literal_expression_t           string;
-	wide_string_literal_expression_t      wide_string;
 	compound_literal_expression_t         compound_literal;
 	builtin_constant_expression_t         builtin_constant;
 	builtin_types_compatible_expression_t builtin_types_compatible;
@@ -447,7 +457,7 @@ struct initializer_string_t {
 
 struct initializer_wide_string_t {
 	initializer_base_t  base;
-	wide_string_t       string;
+	string_t            string;
 };
 
 struct initializer_designator_t {
@@ -657,24 +667,32 @@ struct translation_unit_t {
 	statement_t *global_asm;
 };
 
-static inline
-void *_allocate_ast(size_t size)
+static inline void *_allocate_ast(size_t size)
 {
 	return obstack_alloc(&ast_obstack, size);
 }
 
-static inline
-bool is_invalid_expression(expression_t *expression)
+static inline bool is_invalid_expression(expression_t *expression)
 {
 	return expression->base.kind == EXPR_INVALID;
 }
 
-static inline
-bool is_invalid_statement(statement_t *statement)
+static inline bool is_invalid_statement(statement_t *statement)
 {
 	return statement->base.kind == STATEMENT_INVALID;
 }
 
 #define allocate_ast(size)                 _allocate_ast(size)
 
+/**
+ * Allocate an AST node with given size and
+ * initialize all fields with zero.
+ */
+static inline void *allocate_ast_zero(size_t size)
+{
+	void *res = allocate_ast(size);
+	memset(res, 0, size);
+	return res;
+}
+
 #endif