Rollup merge of rust-lang#44450 - SergioBenitez:master, r=nrc

GuillaumeGomez · web-flow · commit 7d1053b44eda · 2017-09-13T21:46:08.000+02:00
Add `impl From<Vec<Span>> for MultiSpan`. A simple `impl`. r? @nrc
diff --git a/src/libsyntax_pos/lib.rs b/src/libsyntax_pos/lib.rs
@@ -434,6 +434,12 @@ impl From<Span> for MultiSpan {
     }
 }
 
+impl From<Vec<Span>> for MultiSpan {
+    fn from(spans: Vec<Span>) -> MultiSpan {
+        MultiSpan::from_spans(spans)
+    }
+}
+
 pub const NO_EXPANSION: SyntaxContext = SyntaxContext::empty();
 
 /// Identifies an offset of a multi-byte character in a FileMap

Original file line number	Diff line number	Diff line change
`@@ -434,6 +434,12 @@ impl From<Span> for MultiSpan {`
`434`	`434`	`}`
`435`	`435`	`}`
`436`	`436`
	`437`	`+impl From<Vec<Span>> for MultiSpan {`
	`438`	`+ fn from(spans: Vec<Span>) -> MultiSpan {`
	`439`	`+ MultiSpan::from_spans(spans)`
	`440`	`+ }`
	`441`	`+}`
	`442`	`+`
`437`	`443`	`pub const NO_EXPANSION: SyntaxContext = SyntaxContext::empty();`
`438`	`444`
`439`	`445`	`/// Identifies an offset of a multi-byte character in a FileMap`