don't create intermediate string while creating json (rustdoc)

osa1 · osa1 · commit bc423583a4a3 · 2013-11-29T10:06:21.000+02:00
diff --git a/src/librustdoc/lib.rs b/src/librustdoc/lib.rs
@@ -324,7 +324,6 @@ fn json_output(crate: clean::Crate, res: ~[plugins::PluginJson], dst: Path) {
     json.insert(~"crate", crate_json);
     json.insert(~"plugins", json::Object(plugins_json));
 
-    let mut file = File::create(&dst).unwrap();
-    let output = json::Object(json).to_str();
-    file.write(output.as_bytes());
+    let file = @mut File::create(&dst).unwrap();
+    json::Object(json).to_writer(file as @mut io::Writer);
 }

Original file line number	Diff line number	Diff line change
`@@ -324,7 +324,6 @@ fn json_output(crate: clean::Crate, res: ~[plugins::PluginJson], dst: Path) {`
`324`	`324`	`json.insert(~"crate", crate_json);`
`325`	`325`	`json.insert(~"plugins", json::Object(plugins_json));`
`326`	`326`
`327`		`- let mut file = File::create(&dst).unwrap();`
`328`		`- let output = json::Object(json).to_str();`
`329`		`- file.write(output.as_bytes());`
	`327`	`+ let file = @mut File::create(&dst).unwrap();`
	`328`	`+ json::Object(json).to_writer(file as @mut io::Writer);`
`330`	`329`	`}`