merge

vulkano/src/instance/debug.rs

@@ -191,6 +191,18 @@ pub struct MessageTypes {
 }
 
 impl MessageTypes {
+    /// Builds a `MessageTypes` with all fields set to `true`.
+    #[inline]
+    pub fn all() -> MessageTypes {
+        MessageTypes {
+            error: true,
+            warning: true,
+            performance_warning: true,
+            information: true,
+            debug: true,
+        }
+    }
+
     /// Builds a `MessageTypes` with all fields set to `false` expect `error`.
     #[inline]
     pub fn errors() -> MessageTypes {
@@ -255,3 +267,22 @@ impl From<Error> for DebugCallbackCreationError {
         panic!("unexpected error: {:?}", err)
     }
 }
+
+impl fmt::Display for MessageTypes {
+    #[inline]
+    fn fmt(&self, fmt: &mut fmt::Formatter) -> Result<(), fmt::Error> {
+        if self.error {
+            write!(fmt, "error")
+        } else if self.warning {
+            write!(fmt, "warning")
+        } else if self.performance_warning {
+            write!(fmt, "performance_warning")
+        } else if self.information {
+            write!(fmt, "information")
+        } else if self.debug {
+            write!(fmt, "debug")
+        } else {
+            write!(fmt, "{:?}", self)
+        }
+    }
+}