core: Add iterable implementation for strings

brson · brson · commit e360ddbd65e2 · 2012-02-12T22:17:10.000-08:00
diff --git a/src/libcore/iter.rs b/src/libcore/iter.rs
@@ -33,6 +33,12 @@ impl<A> of iterable<A> for option<A> {
     }
 }
 
+impl of iterable<char> for str {
+    fn iter(blk: fn(&&char)) {
+        str::chars_iter(self) { |ch| blk(ch) }
+    }
+}
+
 fn enumerate<A,IA:iterable<A>>(self: IA, blk: fn(uint, A)) {
     let i = 0u;
     self.iter {|a|

Original file line number	Diff line number	Diff line change
`@@ -33,6 +33,12 @@ impl<A> of iterable<A> for option<A> {`
`33`	`33`	`}`
`34`	`34`	`}`
`35`	`35`
	`36`	`+impl of iterable<char> for str {`
	`37`	`+ fn iter(blk: fn(&&char)) {`
	`38`	`+ str::chars_iter(self) { \|ch\| blk(ch) }`
	`39`	`+ }`
	`40`	`+}`
	`41`	`+`
`36`	`42`	`fn enumerate<A,IA:iterable<A>>(self: IA, blk: fn(uint, A)) {`
`37`	`43`	`let i = 0u;`
`38`	`44`	`self.iter {\|a\|`