diff options
Diffstat (limited to 'gee/bidiriterator.c')
| -rw-r--r-- | gee/bidiriterator.c | 74 |
1 files changed, 73 insertions, 1 deletions
diff --git a/gee/bidiriterator.c b/gee/bidiriterator.c index ae37adf..1a4b624 100644 --- a/gee/bidiriterator.c +++ b/gee/bidiriterator.c @@ -27,6 +27,26 @@ #include <glib-object.h> +#define GEE_TYPE_TRAVERSABLE (gee_traversable_get_type ()) +#define GEE_TRAVERSABLE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GEE_TYPE_TRAVERSABLE, GeeTraversable)) +#define GEE_IS_TRAVERSABLE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GEE_TYPE_TRAVERSABLE)) +#define GEE_TRAVERSABLE_GET_INTERFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), GEE_TYPE_TRAVERSABLE, GeeTraversableIface)) + +typedef struct _GeeTraversable GeeTraversable; +typedef struct _GeeTraversableIface GeeTraversableIface; + +#define GEE_TRAVERSABLE_TYPE_STREAM (gee_traversable_stream_get_type ()) + +#define GEE_TYPE_LAZY (gee_lazy_get_type ()) +#define GEE_LAZY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GEE_TYPE_LAZY, GeeLazy)) +#define GEE_LAZY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GEE_TYPE_LAZY, GeeLazyClass)) +#define GEE_IS_LAZY(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GEE_TYPE_LAZY)) +#define GEE_IS_LAZY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GEE_TYPE_LAZY)) +#define GEE_LAZY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GEE_TYPE_LAZY, GeeLazyClass)) + +typedef struct _GeeLazy GeeLazy; +typedef struct _GeeLazyClass GeeLazyClass; + #define GEE_TYPE_ITERATOR (gee_iterator_get_type ()) #define GEE_ITERATOR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GEE_TYPE_ITERATOR, GeeIterator)) #define GEE_IS_ITERATOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GEE_TYPE_ITERATOR)) @@ -43,28 +63,69 @@ typedef struct _GeeIteratorIface GeeIteratorIface; typedef struct _GeeBidirIterator GeeBidirIterator; typedef struct _GeeBidirIteratorIface GeeBidirIteratorIface; +typedef gboolean (*GeeForallFunc) (gpointer g, void* user_data); +typedef enum { + GEE_TRAVERSABLE_STREAM_YIELD, + GEE_TRAVERSABLE_STREAM_CONTINUE, + GEE_TRAVERSABLE_STREAM_END +} GeeTraversableStream; + +typedef GeeTraversableStream (*GeeStreamFunc) (GeeTraversableStream state, GeeLazy* g, GeeLazy** lazy, void* user_data); +typedef gpointer (*GeeFoldFunc) (gpointer g, gpointer a, void* user_data); +typedef gpointer (*GeeMapFunc) (gpointer g, void* user_data); +typedef gboolean (*GeePredicate) (gconstpointer g, void* user_data); +struct _GeeTraversableIface { + GTypeInterface parent_iface; + GType (*get_g_type) (GeeTraversable* self); + GBoxedCopyFunc (*get_g_dup_func) (GeeTraversable* self); + GDestroyNotify (*get_g_destroy_func) (GeeTraversable* self); + gboolean (*foreach) (GeeTraversable* self, GeeForallFunc f, void* f_target); + GeeIterator* (*stream) (GeeTraversable* self, GType a_type, GBoxedCopyFunc a_dup_func, GDestroyNotify a_destroy_func, GeeStreamFunc f, void* f_target, GDestroyNotify f_target_destroy_notify); + gpointer (*fold) (GeeTraversable* self, GType a_type, GBoxedCopyFunc a_dup_func, GDestroyNotify a_destroy_func, GeeFoldFunc f, void* f_target, gpointer seed); + GeeIterator* (*map) (GeeTraversable* self, GType a_type, GBoxedCopyFunc a_dup_func, GDestroyNotify a_destroy_func, GeeMapFunc f, void* f_target); + GeeIterator* (*scan) (GeeTraversable* self, GType a_type, GBoxedCopyFunc a_dup_func, GDestroyNotify a_destroy_func, GeeFoldFunc f, void* f_target, gpointer seed); + GeeIterator* (*filter) (GeeTraversable* self, GeePredicate pred, void* pred_target, GDestroyNotify pred_target_destroy_notify); + GeeIterator* (*chop) (GeeTraversable* self, gint offset, gint length); + GType (*get_element_type) (GeeTraversable* self); +}; + struct _GeeIteratorIface { GTypeInterface parent_iface; gboolean (*next) (GeeIterator* self); gboolean (*has_next) (GeeIterator* self); - gboolean (*first) (GeeIterator* self); gpointer (*get) (GeeIterator* self); void (*remove) (GeeIterator* self); + gboolean (*get_valid) (GeeIterator* self); + gboolean (*get_read_only) (GeeIterator* self); }; struct _GeeBidirIteratorIface { GTypeInterface parent_iface; + GType (*get_g_type) (GeeBidirIterator* self); + GBoxedCopyFunc (*get_g_dup_func) (GeeBidirIterator* self); + GDestroyNotify (*get_g_destroy_func) (GeeBidirIterator* self); gboolean (*previous) (GeeBidirIterator* self); gboolean (*has_previous) (GeeBidirIterator* self); + gboolean (*first) (GeeBidirIterator* self); gboolean (*last) (GeeBidirIterator* self); }; +GType gee_traversable_stream_get_type (void) G_GNUC_CONST; +gpointer gee_lazy_ref (gpointer instance); +void gee_lazy_unref (gpointer instance); +GParamSpec* gee_param_spec_lazy (const gchar* name, const gchar* nick, const gchar* blurb, GType object_type, GParamFlags flags); +void gee_value_set_lazy (GValue* value, gpointer v_object); +void gee_value_take_lazy (GValue* value, gpointer v_object); +gpointer gee_value_get_lazy (const GValue* value); +GType gee_lazy_get_type (void) G_GNUC_CONST; +GType gee_traversable_get_type (void) G_GNUC_CONST; GType gee_iterator_get_type (void) G_GNUC_CONST; GType gee_bidir_iterator_get_type (void) G_GNUC_CONST; gboolean gee_bidir_iterator_previous (GeeBidirIterator* self); gboolean gee_bidir_iterator_has_previous (GeeBidirIterator* self); +gboolean gee_bidir_iterator_first (GeeBidirIterator* self); gboolean gee_bidir_iterator_last (GeeBidirIterator* self); @@ -91,6 +152,17 @@ gboolean gee_bidir_iterator_has_previous (GeeBidirIterator* self) { /** + * Rewinds to the first element in the iteration. + * + * @return ``true`` if the iterator has a first element + */ +gboolean gee_bidir_iterator_first (GeeBidirIterator* self) { + g_return_val_if_fail (self != NULL, FALSE); + return GEE_BIDIR_ITERATOR_GET_INTERFACE (self)->first (self); +} + + +/** * Advances to the last element in the iteration. * * @return ``true`` if the iterator has a last element |