X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ast_t.h;h=41367a9786c4cb9be03fb9a193d0dbf15fbaaf50;hb=c080804a9ae61e4ba0ec6fc7288c81c326fa9ddb;hp=15d87358dce61a24f02ab8b8b1d5c3f6e950f82d;hpb=58470bf2cd0db88a0dea7d68433283b569a2ba83;p=cparser

diff --git a/ast_t.h b/ast_t.h
index 15d8735..41367a9 100644
--- a/ast_t.h
+++ b/ast_t.h
@@ -62,8 +62,7 @@ typedef enum precedence_t {
  * Expression kinds.
  */
 typedef enum expression_kind_t {
-	EXPR_UNKNOWN = 0,
-	EXPR_INVALID,
+	EXPR_ERROR = 1,
 	EXPR_REFERENCE,
 	EXPR_REFERENCE_ENUM_VALUE,
 	EXPR_LITERAL_BOOLEAN,
@@ -108,7 +107,6 @@ typedef enum expression_kind_t {
 	EXPR_UNARY_PREFIX_INCREMENT,
 	EXPR_UNARY_PREFIX_DECREMENT,
 	EXPR_UNARY_CAST,
-	EXPR_UNARY_CAST_IMPLICIT, /**< compiler generated cast */
 	EXPR_UNARY_ASSUME,        /**< MS __assume() */
 	EXPR_UNARY_DELETE,
 	EXPR_UNARY_DELETE_ARRAY,
@@ -217,7 +215,6 @@ typedef enum funcname_kind_t {
 	case EXPR_UNARY_PREFIX_INCREMENT:      \
 	case EXPR_UNARY_PREFIX_DECREMENT:      \
 	case EXPR_UNARY_CAST:                  \
-	case EXPR_UNARY_CAST_IMPLICIT:         \
 	case EXPR_UNARY_ASSUME:                \
 	case EXPR_UNARY_DELETE:                \
 	case EXPR_UNARY_DELETE_ARRAY:
@@ -254,6 +251,11 @@ struct expression_base_t {
 #ifndef NDEBUG
 	bool                transformed : 1;     /**< Set if this expression was transformed. */
 #endif
+	bool                implicit : 1;    /**< compiler generated expression.
+	                                          Examples:
+	                                             select into anonymous structs
+	                                             implicit casts
+	                                      */
 };
 
 /**
@@ -262,7 +264,7 @@ struct expression_base_t {
 struct literal_expression_t {
 	expression_base_t  base;
 	string_t           value;
-	symbol_t          *suffix;
+	string_t           suffix;
 
 	/* ast2firm data */
 	ir_tarval         *target_value;
@@ -332,8 +334,6 @@ 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 {
@@ -479,7 +479,7 @@ union initializer_t {
  * The statement kinds.
  */
 typedef enum statement_kind_t {
-	STATEMENT_INVALID,
+	STATEMENT_ERROR = 1,
 	STATEMENT_EMPTY,
 	STATEMENT_COMPOUND,
 	STATEMENT_RETURN,
@@ -514,14 +514,6 @@ struct statement_base_t {
 #endif
 };
 
-struct invalid_statement_t {
-	statement_base_t  base;
-};
-
-struct empty_statement_t {
-	statement_base_t  base;
-};
-
 struct return_statement_t {
 	statement_base_t  base;
 	expression_t     *value;    /**< The return value if any. */
@@ -667,32 +659,18 @@ struct translation_unit_t {
 	statement_t *global_asm;
 };
 
-static inline void *_allocate_ast(size_t size)
-{
-	return obstack_alloc(&ast_obstack, size);
-}
-
-static inline bool is_invalid_expression(expression_t *expression)
-{
-	return expression->base.kind == EXPR_INVALID;
-}
-
-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;
+	return memset(obstack_alloc(&ast_obstack, size), 0, size);
 }
 
+/** If set, implicit casts are printed. */
+extern bool print_implicit_casts;
+/** If set parenthesis are printed to indicate operator precedence. */
+extern bool print_parenthesis;
+
 #endif