glib: add Array wrapper

glib/src/array.rs

@@ -0,0 +1,43 @@
+// Take a look at the license at the top of the repository in the LICENSE file.
+
+use crate::translate::*;
+use std::fmt;
+
+wrapper! {
+    #[derive(PartialEq, Eq, PartialOrd, Ord, Hash)]
+    pub struct Array(Shared<ffi::GArray>);
+
+    match fn {
+        ref => |ptr| ffi::g_array_ref(ptr),
+        unref => |ptr| ffi::g_array_unref(ptr),
+        get_type => || ffi::g_array_get_type(),
+    }
+}
+
+impl Array {
+    pub fn len(&self) -> usize {
+        unsafe { (*self.to_glib_none().0).len as usize }
+    }
+
+    pub fn is_empty(&self) -> bool {
+        self.len() == 0
+    }
+
+    pub fn data(&self) -> *mut libc::c_void {
+        unsafe { (*self.to_glib_none().0).data as _ }
+    }
+
+    pub fn element_size(&self) -> usize {
+        unsafe { ffi::g_array_get_element_size(self.to_glib_none().0) as usize }
+    }
+}
+
+impl fmt::Debug for Array {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        f.debug_struct("Array")
+            .field("len", &self.len())
+            .field("data", &self.data())
+            .field("element_size", &self.element_size())
+            .finish()
+    }
+}

glib/src/lib.rs

@@ -90,6 +90,7 @@ pub use glib_macros::{
     clone, gflags, object_interface, object_subclass, Downgrade, GBoxed, GEnum, GErrorDomain,
 };
 
+pub use self::array::Array;
 pub use self::byte_array::ByteArray;
 pub use self::bytes::Bytes;
 pub use self::closure::Closure;
@@ -140,6 +141,7 @@ mod auto;
 pub use self::gobject::*;
 mod gobject;
 
+mod array;
 mod byte_array;
 mod bytes;
 pub mod char;