rustc_back: impl Hash for Svh

richo · richo · commit 75219e16fc33 · 2015-06-27T18:31:31.000-07:00
diff --git a/src/librustc_back/svh.rs b/src/librustc_back/svh.rs
@@ -126,6 +126,14 @@ impl Svh {
     }
 }
 
+impl Hash for Svh {
+    fn hash<H>(&self, state: &mut H) where H: Hasher {
+        // We have to hash a &str since that's what the old implementations did, and otherwise we
+        // break the abi
+        &self.to_string()[..].hash(state);
+    }
+}
+
 impl fmt::Display for Svh {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         f.pad(&self.as_string())

Original file line number	Diff line number	Diff line change
`@@ -126,6 +126,14 @@ impl Svh {`
`126`	`126`	`}`
`127`	`127`	`}`
`128`	`128`
	`129`	`+impl Hash for Svh {`
	`130`	`+ fn hash<H>(&self, state: &mut H) where H: Hasher {`
	`131`	`+ // We have to hash a &str since that's what the old implementations did, and otherwise we`
	`132`	`+ // break the abi`
	`133`	`+ &self.to_string()[..].hash(state);`
	`134`	`+ }`
	`135`	`+}`
	`136`	`+`
`129`	`137`	`impl fmt::Display for Svh {`
`130`	`138`	`fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {`
`131`	`139`	`f.pad(&self.as_string())`