/**
- *
* @file type.h
*
* Project: libFIRM <br>
void set_type_ident(type *tp, ident* id);
const char* get_type_name(const type *tp);
+/** This enumeration flags the visibility of entities and types.
+ *
+ * This is necessary for partial compilation.
+ * We rely on the ordering of the flags.
+ */
+typedef enum {
+ visibility_local, /**< The entity is only visible locally. This is the default for
+ entities.
+ The type is only visible locally. All instances are allocated
+ locally, and no pointer to entities of this type are passed
+ out of this compilation unit. */
+ visibility_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.
+ For types: entities of this type can be accessed externally. No
+ instances of this type are allocated externally. */
+ visibility_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.
+ For types: entities of this type are allocated and accessed from
+ external code. Default for types. */
+} visibility;
+
+/** The visibility of a type.
+ *
+ * The visibility of a type indicates, whether entities of this type
+ * are accessed or allocated in external code.
+ *
+ * An entity of a type is allocated in external code, if the external
+ * code declares a variable of this type, or dynamically allocates
+ * an entity of this type. If the external code declares a (compound)
+ * type, that contains entities of this type, the visibility also
+ * must be external_allocated.
+ *
+ * The visibility must be higher than that of all entities, if the
+ * type is a compound. Here it is questionable, what happens with
+ * static entities. If these are accessed external by direct reference,
+ * (a static call to a method, that is also in the dispatch table)
+ * it should not affect the visibility of the type.
+ *
+ *
+ * @@@ Do we need a visibility for types?
+ * I change the layout of types radically when doing type splitting.
+ * I need to know, which fields of classes are accessed in the RTS,
+ * e.g., [_length. I may not move [_length to the split part.
+ * The layout though, is a property of the type.
+ *
+ * One could also think of changing the mode of a type ...
+ *
+ * But, we could also output macros to access the fields, e.g.,
+ * ACCESS_[_length (X) X->length // conventional
+ * ACCESS_[_length (X) X->_split_ref->length // with type splitting
+ *
+ * For now I implement this function, that returns the visibility
+ * based on the visibility of the entities of a compound ...
+ *
+ * This function returns visibility_external_visible if one or more
+ * entities of a compound type have visibility_external_visible.
+ * Entities of types are never visibility_external_allocated (right?).
+ * Else returns visibility_local.
+ */
+visibility get_type_visibility (const type *tp);
+void set_type_visibility (type *tp, visibility v);
+
+
+
/** The state of the type layout. */
typedef enum {
layout_undefined, /**< The layout of this type is not defined.
void set_type_mode(type *tp, ir_mode* m);
/** Returns the size of a type in bytes, returns -1 if the size is NOT
- * a byte size, ie not dividable by 8. */
+ * a byte size, i.e. not dividable by 8. */
int get_type_size_bytes(const type *tp);
/** Returns the size of a type in bits. */
*
* If the alignment of a type is
* not set, it is calculated here according to the following rules:
- * 1.) if a type has a mode, the alignment is the mode size.
- * 2.) compound types have the alignment of it's biggest member.
- * 3.) array types have the alignment of its element type.
- * 4.) method types return 0 here.
- * 5.) all other types return 8 here (i.e. aligned at byte).
+ * -#.) if a type has a mode, the alignment is the mode size.
+ * -#.) compound types have the alignment of there biggest member.
+ * -#.) array types have the alignment of there element type.
+ * -#.) method types return 0 here.
+ * -#.) all other types return 8 here (i.e. aligned at byte).
*/
int get_type_alignment_bits(type *tp);
/* @@@ name clash!! int type_visited(const type *tp); */
int type_not_visited(const type *tp);
+/** Returns the associated link field of a type. */
void* get_type_link(const type *tp);
+/** Sets the associated link field of a type. */
void set_type_link(type *tp, void *l);
/**
* - they have the same name
* - they have the same mode (if applicable)
* - they have the same type_state and, ev., the same size
- * - they are class types and have
+ * - they are class types and have:
* - the same members (see same_entity in entity.h)
* - the same supertypes -- the C-pointers are compared --> no recursive call.
* - the same number of subtypes. Subtypes are not compared,
* - they are enumeration types and have the same enumerator names
* - they are pointer types and have the identical points_to type
* (i.e., the same C-struct to represent the type, type_id is skipped.
- * This is to avoid endless recursions; with pointer types circlic
+ * This is to avoid endless recursions; with pointer types cyclic
* type graphs are possible.)
*/
int equal_type(type *tpy1, type *typ2);
* Further a class can inherit from and bequest to other classes.
* @@@ value class???
* The following attributes are private to this type kind:
- * - member: All entities belonging to this class. This are methode entities
+ * - member: All entities belonging to this class. This are method entities
* which have type_method or fields that can have any of the
* following type kinds: type_class, type_struct, type_union,
* type_array, type_enumeration, type_pointer, type_primitive.
/** Gets the subtype at position pos, 0 <= pos < n_subtype. */
type *get_class_subtype (type *clss, int pos);
+/** Returns the index to access subclass as subtype of class.
+ *
+ * If subclass is no direct subtype of class returns -1.
+ */
+int get_class_subtype_index(type *clss, const type *subclass);
+
/** Sets the subtype at position pos, 0 <= pos < n_subtype.
*
* Does not set the corresponding supertype relation for subtype: this might
/** Finds subtype in the list of subtypes and removes it */
void remove_class_subtype(type *clss, type *subtype);
+/* Convenience macros */
+#define add_class_derived_type(clss, drvtype) add_class_subtype(clss, drvtype)
+#define get_class_n_derived_types(clss) get_class_n_subtypes(clss)
+#define get_class_derived_type(clss, pos) get_class_subtype(clss, pos)
+#define get_class_derived_type_index(clss, drvtype) get_class_subtype_index(clss, drvtype)
+#define set_class_derived_type(clss, drvtype, pos) set_class_subtype(clss, drvtype, pos)
+#define remove_class_derived_type(clss, drvtype) remove_class_subtype(clss, drvtype)
/** Adds supertype as supertype to class.
*
/** Returns the number of supertypes */
int get_class_n_supertypes (const type *clss);
-/** Returns the index of an supertype in a type. */
+/** Returns the index to access superclass as supertype of class.
+ *
+ * If superclass is no direct supertype of class returns -1.
+ */
int get_class_supertype_index(type *clss, type *super_clss);
/** Gets the supertype at position pos, 0 <= pos < n_supertype. */
/** Finds supertype in the list of supertypes and removes it */
void remove_class_supertype(type *clss, type *supertype);
+/** Convenience macro */
+#define add_class_base_type(clss, basetype) add_class_supertype(clss, basetype)
+#define get_class_n_base_types(clss) get_class_n_supertypes(clss)
+#define get_class_base_type_index(clss, base_clss) get_class_supertype_index(clss, base_clss)
+#define get_class_base_type(clss, pos) get_class_supertype(clss, pos)
+#define set_class_base_type(clss, basetype, pos) set_class_supertype(clss, basetype, pos)
+#define remove_class_base_type(clss, basetype) remove_class_supertype(clss, basetype)
+
/** This enumeration flags the peculiarity of entities and types. */
typedef enum peculiarity {
peculiarity_description, /**< Represents only a description. The entity/type is never
} peculiarity;
const char *get_peculiarity_string(peculiarity p);
-/* The peculiarity of the class. The enumeration peculiarity is defined
- in entity.h */
+/** Returns the peculiarity of the class. */
peculiarity get_class_peculiarity (const type *clss);
+/** Sets the peculiarity of the class. */
void set_class_peculiarity (type *clss, peculiarity pec);
/* Set and get a class' dfn --
*/
type *get_method_value_param_type(const type *method);
+/** Returns the number of results of a method type. */
int get_method_n_ress (const type *method);
+/** Returns the return type of a method type at position pos. */
type *get_method_res_type(type *method, int pos);
/** Sets the type of the result at position pos of a method.
Also changes the type in the pass-by-value representation by just
type *get_method_value_res_type(const type *method);
/**
- * this enum flags the variadicity of methods (methods with a
+ * This enum flags the variadicity of methods (methods with a
* variable amount of arguments (e.g. C's printf). Default is
* non_variadic.
*/
/**
* Allocates Const nodes of mode_I for one array dimension.
- * Upper bound in Firm is the element next to the last, ie [lower,upper[
+ * Upper bound in Firm is the element next to the last, i.e. [lower,upper[
*/
void set_array_bounds_int (type *array, int dimension, int lower_bound,
int upper_bound);
/**
* Sets the bounds for one array dimension.
- * Upper bound in Firm is the element next to the last, ie [lower,upper[
+ * Upper bound in Firm is the element next to the last, i.e. [lower,upper[
*/
void set_array_bounds (type *array, int dimension, ir_node *lower_bound,
ir_node *upper_bound);
-/** Sets the lower bound for one array dimension, ie [lower,upper[ */
+/** Sets the lower bound for one array dimension, i.e. [lower,upper[ */
void set_array_lower_bound (type *array, int dimension, ir_node *lower_bound);
/** Allocates Const nodes of mode_I for the lower bound of an array
- dimension, ie [lower,upper[ */
+ dimension, i.e. [lower,upper[ */
void set_array_lower_bound_int (type *array, int dimension, int lower_bound);
-/** Sets the upper bound for one array dimension, ie [lower,upper[ */
+/** Sets the upper bound for one array dimension, i.e. [lower,upper[ */
void set_array_upper_bound (type *array, int dimension, ir_node *upper_bound);
/** Allocates Const nodes of mode_I for the upper bound of an array
- dimension, ie [lower,upper[ */
+ dimension, i.e. [lower,upper[. */
void set_array_upper_bound_int (type *array, int dimension, int upper_bound);
-/** returns true if lower bound != Unknown */
+/** Returns true if lower bound != Unknown. */
int has_array_lower_bound (const type *array, int dimension);
+/** Returns the lower bound of an array. */
ir_node * get_array_lower_bound (const type *array, int dimension);
/** Works only if bound is Const node with tarval that can be converted to long. */
long get_array_lower_bound_int (const type *array, int dimension);
/** returns true if lower bound != Unknown */
int has_array_upper_bound (const type *array, int dimension);
+/** Returns the upper bound of an array. */
ir_node * get_array_upper_bound (const type *array, int dimension);
/** Works only if bound is Const node with tarval that can be converted to long. */
long get_array_upper_bound_int (const type *array, int dimension);
* allocated when initializing the type module.
*
* The following values are set:
- * mode: mode_BAD
- * name: "type_none"
- * state: layout_fixed
- * size: 0
+ * - mode: mode_BAD
+ * - name: "type_none"
+ * - state: layout_fixed
+ * - size: 0
*/
-/* A variable that contains the only none type. */
+/** A variable that contains the only none type. */
extern type *firm_none_type;
-/* Returns the none type */
+/** Returns the none type */
type *get_none_type(void);
/**
* allocated when initializing the type module.
*
* The following values are set:
- * mode: mode_ANY
- * name: "type_unknown"
- * state: layout_fixed
- * size: 0
+ * - mode: mode_ANY
+ * - name: "type_unknown"
+ * - state: layout_fixed
+ * - size: 0
*/
-/* A variable that contains the only unknown type. */
+/** A variable that contains the only unknown type. */
extern type *firm_unknown_type;
-/* Returns the unknown type */
+/** Returns the unknown type */
type *get_unknown_type(void);
/**
* Checks whether a type is atomic.
- * @param tp - any type
+ * @param tp any type
* @return true if type is primitive, pointer or enumeration
*/
int is_atomic_type(const type *tp);
*
* @return The member entity at position pos.
*
- * @see get_compound_n_members() for justifaction of existence.
+ * @see get_compound_n_members() for justification of existence.
*/
entity *get_compound_member(const type *tp, int pos);
/**
- * Checks whether a type is compound.
+ * Checks whether a type is compound.
*
- * @param tp - any type
+ * @param tp - any type
*
- * @return true if the type is class, structure, union or array type.
+ * @return true if the type is class, structure, union or array type.
*/
int is_compound_type(const type *tp);
+/**
+ * Checks, whether a type is a frame type
+ */
+int is_frame_type(const type *tp);
+
+/**
+ * Makes a new frame type. Frame types are class types,
+ * so all class access functions work.
+ * Frame types are not in the global list of types.
+ */
+type *new_type_frame(ident *name);
+
+/*-----------------------------------------------------------------*/
+/** Debug aides **/
+/*-----------------------------------------------------------------*/
/**
* Outputs a unique number for this type if libfirm is compiled for
*/
long get_type_nr(const type *tp);
-/*******************************************************************/
-/** Debug aides **/
-/*******************************************************************/
-
-
-
# endif /* _TYPE_H_ */
projects / libfirm / blobdiff