auto merge of #8150 : dotdash/rust/assert_bloat, r=huonw

bors · bors · commit 66a0b5870d7c · 2013-07-31T12:58:22.000-07:00
Assertions without a message get a generated message that consists of a
prefix plus the stringified expression that is being asserted. That
prefix is currently a unique string, while a static string would be
sufficient and needs less code.
diff --git a/src/libsyntax/ext/expand.rs b/src/libsyntax/ext/expand.rs
@@ -683,7 +683,7 @@ pub fn std_macros() -> @str {
         ($cond:expr) => {
             if !$cond {
                 ::std::sys::FailWithCause::fail_with(
-                    ~\"assertion failed: \" + stringify!($cond), file!(), line!())
+                    \"assertion failed: \" + stringify!($cond), file!(), line!())
             }
         };
         ($cond:expr, $msg:expr) => {

Original file line number	Diff line number	Diff line change
`@@ -683,7 +683,7 @@ pub fn std_macros() -> @str {`
`683`	`683`	`($cond:expr) => {`
`684`	`684`	`if !$cond {`
`685`	`685`	`::std::sys::FailWithCause::fail_with(`
`686`		`- ~\"assertion failed: \" + stringify!($cond), file!(), line!())`
	`686`	`+ \"assertion failed: \" + stringify!($cond), file!(), line!())`
`687`	`687`	`}`
`688`	`688`	`};`
`689`	`689`	`($cond:expr, $msg:expr) => {`