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authorRobin Krahl <robin.krahl@ireas.org>2019-01-11 00:41:59 +0000
committerRobin Krahl <robin.krahl@ireas.org>2019-01-11 01:46:50 +0100
commit3efbb1ddc8b85f85621db9b37a0980ec88d2386d (patch)
treeb2d029ba4b8bf83fecb6f4e7cef090cbd562025f /src/backends/dialog.rs
parent27834815893eca768f64c4fb9c5a85d42dea60e6 (diff)
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Return Box<dyn Backend> in default_backend()
This patch refactors the default_backend function to return a Box<dyn Backend> instead of impl Backend. This will allow us to dynamically choose the backend implementation in a future patch. To keep the current interface, we change show_with to accept both a reference to a backend instance as well as a reference to a boxed backend instance. This also means we have to implement AsRef<Self> for the backend structs.
Diffstat (limited to 'src/backends/dialog.rs')
-rw-r--r--src/backends/dialog.rs6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/backends/dialog.rs b/src/backends/dialog.rs
index 939b8f3..6f078e6 100644
--- a/src/backends/dialog.rs
+++ b/src/backends/dialog.rs
@@ -77,6 +77,12 @@ impl Dialog {
}
}
+impl AsRef<Dialog> for Dialog {
+ fn as_ref(&self) -> &Self {
+ self
+ }
+}
+
fn require_success(status: process::ExitStatus) -> Result<()> {
if status.success() {
Ok(())