Rollup merge of #21825 - kmcallister:ttdelim-span, r=sanxiyn

Author: Manishearth

src/libsyntax/parse/mod.rs

@@ -755,6 +755,7 @@ mod test {
     use ast;
     use abi;
     use attr::{first_attr_value_str_by_name, AttrMetaMethods};
+    use parse;
     use parse::parser::Parser;
     use parse::token::{str_to_ident};
     use print::pprust::item_to_string;
@@ -1214,4 +1215,26 @@ mod test {
         let doc = first_attr_value_str_by_name(item.attrs.as_slice(), "doc").unwrap();
         assert_eq!(doc.get(), "/** doc comment\n *  with CRLF */");
     }
+
+    #[test]
+    fn ttdelim_span() {
+        let sess = parse::new_parse_sess();
+        let expr = parse::parse_expr_from_source_str("foo".to_string(),
+            "foo!( fn main() { body } )".to_string(), vec![], &sess);
+
+        let tts = match expr.node {
+            ast::ExprMac(ref mac) => {
+                let ast::MacInvocTT(_, ref tts, _) = mac.node;
+                tts.clone()
+            }
+            _ => panic!("not a macro"),
+        };
+
+        let span = tts.iter().rev().next().unwrap().get_span();
+
+        match sess.span_diagnostic.cm.span_to_snippet(span) {
+            Some(s) => assert_eq!(&s[], "{ body }"),
+            None => panic!("could not get snippet"),
+        }
+    }
 }

src/libsyntax/parse/parser.rs

@@ -2735,7 +2735,7 @@ impl<'a> Parser<'a> {
                 self.open_braces.pop().unwrap();
 
                 // Expand to cover the entire delimited token tree
-                let span = Span { hi: self.span.hi, ..pre_span };
+                let span = Span { hi: close_span.hi, ..pre_span };
 
                 TtDelimited(span, Rc::new(Delimited {
                     delim: delim,