Rollup merge of #44223 - eddyb:symbol-from-str, r=jseyfried

Mark-Simulacrum · web-flow · commit 9c4bdd3b8702 · 2017-08-31T18:07:47.000-06:00
Implement From<&str> for Symbol. This lets us have `fn foo<S: Into<Symbol>>` bounds and accept both `&str` and existing `Symbol`s. r? @jseyfried
diff --git a/src/libsyntax_pos/symbol.rs b/src/libsyntax_pos/symbol.rs
@@ -115,6 +115,12 @@ impl Symbol {
     }
 }
 
+impl<'a> From<&'a str> for Symbol {
+    fn from(string: &'a str) -> Symbol {
+        Symbol::intern(string)
+    }
+}
+
 impl fmt::Debug for Symbol {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         write!(f, "{}({})", self, self.0)

Original file line number	Diff line number	Diff line change
`@@ -115,6 +115,12 @@ impl Symbol {`
`115`	`115`	`}`
`116`	`116`	`}`
`117`	`117`
	`118`	`+impl<'a> From<&'a str> for Symbol {`
	`119`	`+ fn from(string: &'a str) -> Symbol {`
	`120`	`+ Symbol::intern(string)`
	`121`	`+ }`
	`122`	`+}`
	`123`	`+`
`118`	`124`	`impl fmt::Debug for Symbol {`
`119`	`125`	`fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {`
`120`	`126`	`write!(f, "{}({})", self, self.0)`