X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Ftr%2Fentity.h;h=d7e69bdb89adc1ef890f77c894c3e5eee4facf52;hb=823a3abad1ab22cc4db2073410bf8f0e200441bc;hp=c1476cbe3b4f2521e6813cc8b8f381f3b9c7c8e9;hpb=df83e37827032795585d3b25776c465870672901;p=libfirm diff --git a/ir/tr/entity.h b/ir/tr/entity.h index c1476cbe3..d7e69bdb8 100644 --- a/ir/tr/entity.h +++ b/ir/tr/entity.h @@ -2,10 +2,15 @@ * Copyright (C) 1998 - 2000 by Universitaet Karlsruhe * All rights reserved. * -* Authors: Martin Trapp, Christian Schaefer, -* Goetz Lindenmaier +*/ + +/** +* @file entity.h * -* entity.h: entities represent all program known objects. +* Entities represent all program known objects. +* +* @author Martin Trapp, Christian Schaefer, +* @author Goetz Lindenmaier * * An entity is the representation of program known objects in Firm. * The primary concept of entities is to represent members of complex @@ -56,7 +61,7 @@ /** general **/ /*******************************************************************/ -/* initalize entity module */ +/** initalize entity module */ void init_entity (void); /*******************************************************************/ @@ -115,7 +120,7 @@ typedef struct entity entity; #endif -/* Creates a new entity. +/** Creates a new entity. Automatically inserts the entity as a member of owner. Entity is automatic_allocated and uninitialize except if the type is type_method, then it is static_allocated and constant. The constant @@ -123,16 +128,17 @@ typedef struct entity entity; Visibility is local, offset -1, and it is not volatile. */ entity *new_entity (type *owner, ident *name, type *tp); entity *new_d_entity (type *owner, ident *name, type *tp, dbg_info *db); -/* Copies the entity if the new_owner is different from the +/** 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. */ + Automatically inserts the new entity as a member of owner. + Resets the overwrites/overwritten_by fields. */ entity *copy_entity_own (entity *old, type *new_owner); -/* Copies the entity if the new_name is different from the +/** 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); -/* Frees the entity. The owner will still contain the pointer to this +/** Frees the entity. The owner will still contain the pointer to this entity, as well as all other references! */ void free_entity (entity *ent); @@ -157,15 +163,15 @@ type *get_entity_type (entity *ent); void set_entity_type (entity *ent, type *tp); typedef enum { - automatic_allocated, /* The entity is allocated during runtime, implicitly + automatic_allocated, /**< The entity is allocated during runtime, implicitly as component of a compound type. This is the default. */ - parameter_allocated, /* The entity is a parameter. It is also automatic allocated. + parameter_allocated, /**< The entity is a parameter. It is also automatic allocated. We distinguish the allocation of paramters from the allocation of local variables as their placement depends on the calling conventions. */ - dynamic_allocated, /* The entity is allocated during runtime, explicitly + dynamic_allocated, /**< The entity is allocated during runtime, explicitly by an Alloc node. */ - static_allocated /* The entity is allocated statically. We can use a + static_allocated /**< The entity is allocated statically. We can use a SymConst(?) as address of the entity. */ } ent_allocation; @@ -175,11 +181,11 @@ void set_entity_allocation (entity *ent, ent_allocation al); /* This enumeration flags the visibility of entities. This is necessary for partial compilation. */ typedef enum { - local, /* The entity is only visible locally. This is the default. */ - external_visible, /* The entity is visible to other external program parts, but + local, /**< The entity is only visible locally. This is the default. */ + external_visible, /**< The entity is visible to other external program parts, but it is defined here. It may not be optimized away. The entity must be static_allocated. */ - external_allocated /* The entity is defined and allocated externally. This compilation + external_allocated /**< The entity is defined and allocated externally. This compilation must not allocate memory for this entity. The entity must be static_allocated. This can also be an external defined method. */ @@ -188,24 +194,24 @@ typedef enum { ent_visibility get_entity_visibility (entity *ent); void set_entity_visibility (entity *ent, ent_visibility vis); -/* This enumeration flags the variability of entities. */ +/** This enumeration flags the variability of entities. */ typedef enum { - uninitialized, /* The content of the entity is completely unknown. */ - initialized, /* After allocation the entity is initalized with the + uninitialized, /**< The content of the entity is completely unknown. */ + initialized, /**< After allocation the entity is initalized with the value given somewhere in the entity. */ - part_constant, /* For entities of compound types. Some members of the entity + part_constant, /**< For entities of compound types. Some members of the entity are constant. The others are uninitialized. Those members given a value for are constant. */ - constant /* The entity is constant. */ + constant /**< The entity is constant. */ } ent_variability; ent_variability get_entity_variability (entity *ent); void set_entity_variability (entity *ent, ent_variability var); -/* This enumeration flags the volatility of entities. */ +/** This enumeration flags the volatility of entities. */ typedef enum { - non_volatile, /* The entity is not volatile */ - is_volatile /* The entity is volatile */ + non_volatile, /**< The entity is not volatile */ + is_volatile /**< The entity is volatile */ } ent_volatility; ent_volatility get_entity_volatility (entity *ent); @@ -270,22 +276,36 @@ void set_array_entity_values(entity *ent, tarval **values, int num_vals); both relations, they only differ in the order of arguments. */ void add_entity_overwrites (entity *ent, entity *overwritten); int get_entity_n_overwrites (entity *ent); +int get_entity_overwrites_index(entity *ent, entity *overwritten); entity *get_entity_overwrites (entity *ent, int pos); void set_entity_overwrites (entity *ent, int pos, entity *overwritten); +void remove_entity_overwrites(entity *ent, entity *overwritten); void add_entity_overwrittenby (entity *ent, entity *overwrites); int get_entity_n_overwrittenby (entity *ent); +int get_entity_overwrittenby_index(entity *ent, entity *overwrites); entity *get_entity_overwrittenby (entity *ent, int pos); void set_entity_overwrittenby (entity *ent, int pos, entity *overwrites); +void remove_entity_overwrittenby(entity *ent, entity *overwrites); -/* Returns true if the type of the entity is a primitive, pointer +/** + * Checks whether a pointer points to an entity. + * + * @param thing an arbitrary pointer + * + * @return + * true if the thing is an entity, else false + */ +int is_entity (void *thing); + +/** Returns true if the type of the entity is a primitive, pointer enumeration or method type. */ int is_atomic_entity(entity *ent); -/* Returns true if the type of the entity is a class, structure, +/** Returns true if the type of the entity is a class, structure, array or union type. */ int is_compound_entity(entity *ent); -/* Returns true if ent1 and ent2 have are equal except for their owner. +/** Returns true if ent1 and ent2 have are equal except for their owner. Two entities are equal if - they have the same type (the same C-struct) - ...? @@ -295,8 +315,11 @@ bool equal_entity(entity *ent1, entity *ent2); unsigned long get_entity_visited(entity *ent); void set_entity_visited(entity *ent, unsigned long num); -/* Sets visited field in entity to entity_visited. */ +/** Sets visited field in entity to entity_visited. */ void mark_entity_visited(entity *ent); +bool entity_visited(entity *ent); +bool entity_not_visited(entity *ent); +