Fix macro expansion backtrace diagnostics

jseyfried · jseyfried · commit f8e9c150278c · 2016-05-19T00:24:43.000Z
diff --git a/src/libsyntax/errors/emitter.rs b/src/libsyntax/errors/emitter.rs
@@ -422,7 +422,7 @@ impl EmitterWriter {
                     &format!(" (defined in {})",
                         self.cm.span_to_filename(def_site_span)));
             }
-            let snippet = self.cm.span_to_string(sp);
+            let snippet = self.cm.span_to_string(trace.call_site);
             print_diagnostic(&mut self.dst, &snippet, Note, &diag_string, None)?;
         }
         Ok(())

Original file line number	Diff line number	Diff line change
`@@ -422,7 +422,7 @@ impl EmitterWriter {`
`422`	`422`	`&format!(" (defined in {})",`
`423`	`423`	`self.cm.span_to_filename(def_site_span)));`
`424`	`424`	`}`
`425`		`- let snippet = self.cm.span_to_string(sp);`
	`425`	`+ let snippet = self.cm.span_to_string(trace.call_site);`
`426`	`426`	`print_diagnostic(&mut self.dst, &snippet, Note, &diag_string, None)?;`
`427`	`427`	`}`
`428`	`428`	`Ok(())`