use newtype struct for devnull rather than type aliased record

tedhorst · catamorphism · commit af48f305421a · 2013-01-02T15:35:32.000-08:00
diff --git a/src/test/bench/shootout-mandelbrot.rs b/src/test/bench/shootout-mandelbrot.rs
@@ -96,9 +96,9 @@ fn chanmb(i: uint, size: uint) -> Line
     Line {i:i, b:crv}
 }
 
-type devnull = {dn: int};
+struct Devnull();
 
-impl devnull: io::Writer {
+impl Devnull: io::Writer {
     fn write(&self, _b: &[const u8]) {}
     fn seek(&self, _i: int, _s: io::SeekStyle) {}
     fn tell(&self) -> uint {0_u}
@@ -110,7 +110,7 @@ fn writer(path: ~str, pport: pipes::Port<Line>, size: uint)
 {
     let cout: io::Writer = match path {
         ~"" => {
-            {dn: 0} as io::Writer
+            Devnull as io::Writer
         }
         ~"-" => {
             io::stdout()

Original file line number	Diff line number	Diff line change
`@@ -96,9 +96,9 @@ fn chanmb(i: uint, size: uint) -> Line`
`96`	`96`	`Line {i:i, b:crv}`
`97`	`97`	`}`
`98`	`98`
`99`		`-type devnull = {dn: int};`
	`99`	`+struct Devnull();`
`100`	`100`
`101`		`-impl devnull: io::Writer {`
	`101`	`+impl Devnull: io::Writer {`
`102`	`102`	`fn write(&self, _b: &[const u8]) {}`
`103`	`103`	`fn seek(&self, _i: int, _s: io::SeekStyle) {}`
`104`	`104`	`fn tell(&self) -> uint {0_u}`
`@@ -110,7 +110,7 @@ fn writer(path: ~str, pport: pipes::Port<Line>, size: uint)`
`110`	`110`	`{`
`111`	`111`	`let cout: io::Writer = match path {`
`112`	`112`	`~"" => {`
`113`		`- {dn: 0} as io::Writer`
	`113`	`+ Devnull as io::Writer`
`114`	`114`	`}`
`115`	`115`	`~"-" => {`
`116`	`116`	`io::stdout()`