X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Ftr%2Fentity.h;h=48e911443c0d53edf44471be3f580430b54bd4b6;hb=aeccc4a872226c8e08e6241bcd56b846e400c52d;hp=1239ba3f734363822de29c97b1283262406e5fdc;hpb=d88be9755d1677cd1b1cfb3421769fb87cb15997;p=libfirm

diff --git a/ir/tr/entity.h b/ir/tr/entity.h
index 1239ba3f7..48e911443 100644
--- a/ir/tr/entity.h
+++ b/ir/tr/entity.h
@@ -66,6 +66,24 @@ void init_entity (void);
 typedef struct ir_graph ir_graph;
 #endif
 
+/****s* entity/entity
+ *
+ * NAME
+ *   entity - An abstract data type to represent program entites.
+ * NOTE
+ *
+ *   ... not documented ...
+ *
+ * ATTRIBUTES
+ *
+ *
+ *  These fields can only be accessed via access functions.
+ *
+ * SEE ALSO
+ *   type
+ * SOURCE
+ */
+
 #ifndef _ENTITY_TYPEDEF_
 #define _ENTITY_TYPEDEF_
 /* to resolve recursion between entity.h and type.h */
@@ -75,22 +93,32 @@ typedef struct entity entity;
 /* Creates a new entity.
    Automatically inserts the entity as a member of owner. */
 entity     *new_entity (type *owner, ident *name, type *type);
-
-/* manipulate fields of entity */
+/* Copies the entity if the new_owner is different from the
+   owner of the old entity.  Else returns the old entity.
+   Automatically inserts the new entity as a member of owner. */
+entity     *copy_entity_own (entity *old, type *new_owner);
+/* Copies the entity if the new_name is different from the
+   name of the old entity.  Else returns the old entity.
+   Automatically inserts the new entity as a member of owner.
+   The mangled name ld_name is set to NULL. */
+entity     *copy_entity_name (entity *old, ident *new_name);
+
+/** manipulate fields of entity **/
 const char *get_entity_name     (entity *ent);
 ident      *get_entity_ident    (entity *ent);
-/* returns the mangled name of the entity */
-ident      *get_entity_ld_name  (entity *ent);
+/* returns the mangled name of the entity.  If the mangled name is
+   set it returns the existing name.  Else it generates a name
+   with mangle_entity() and remembers this new name internally. */
+ident      *get_entity_ld_ident (entity *ent);
+void        set_entity_ld_ident (entity *ent, ident *ld_ident);
 
 /*
 char     *get_entity_ld_name  (entity *ent);
 void      set_entity_ld_name  (entity *ent, char *ld_name);
-
-ident    *get_entity_ld_ident (entity *ent);
-void      set_entity_ld_ident (entity *ent, ident *ld_ident);
 */
 
 type     *get_entity_owner (entity *ent);
+/* Sets the owner field in entity to owner. */
 void      set_entity_owner (entity *ent, type *owner);
 inline void  assert_legal_owner_of_ent(type *owner);
 
@@ -126,10 +154,26 @@ void           set_entity_visibility (entity *ent, ent_visibility vis);
 int       get_entity_offset (entity *ent);
 void      set_entity_offset (entity *ent, int offset);
 
+/* Overwrites is a field that specifies that an access to the overwritten
+   entity in the supertype must use this entity.  It's a list as with
+   multiple inheritance several enitites can be overwritten.  This field
+   is mostly useful for method entities.
+   If a Sel node selects an entity that is overwritten by other entities it
+   must return a pointer to the entity of the dynamic type of the pointer
+   that is passed to it.  Lowering of the Sel node must assure this. */
+void    add_entity_overwrites   (entity *ent, entity *overwritten);
+int     get_entity_n_overwrites (entity *ent);
+entity *get_entity_overwrites   (entity *ent, int pos);
+void    set_entity_overwrites   (entity *ent, int pos, entity *overwritten);
+/* Do we need a second relation "overwritten"? */
+
 /* The entity knows the corresponding irg if the entity is a method.
    This allows to get from a Call to the called irg. */
 ir_graph *get_entity_irg(entity *ent);
 void      set_entity_irg(entity *ent, ir_graph *irg);
 
 
+
+/*****/
+
 # endif /* _ENTITY_H_ */