Update comment

mark-i-m · mark-i-m · commit 2184400be7f6 · 2018-01-29T16:37:57.000-06:00
diff --git a/src/libsyntax/ext/tt/macro_parser.rs b/src/libsyntax/ext/tt/macro_parser.rs
@@ -113,7 +113,8 @@ enum TokenTreeOrTokenTreeVec {
 }
 
 impl TokenTreeOrTokenTreeVec {
-    /// Returns the number of constituent token trees of `self`.
+    /// Returns the number of constituent top-level token trees of `self` (top-level in that it
+    /// will not recursively descend into subtrees).
     fn len(&self) -> usize {
         match *self {
             TtSeq(ref v) => v.len(),

Original file line number	Diff line number	Diff line change
`@@ -113,7 +113,8 @@ enum TokenTreeOrTokenTreeVec {`
`113`	`113`	`}`
`114`	`114`
`115`	`115`	`impl TokenTreeOrTokenTreeVec {`
`116`		- /// Returns the number of constituent token trees of `self`.
	`116`	+ /// Returns the number of constituent top-level token trees of `self` (top-level in that it
	`117`	`+ /// will not recursively descend into subtrees).`
`117`	`118`	`fn len(&self) -> usize {`
`118`	`119`	`match *self {`
`119`	`120`	`TtSeq(ref v) => v.len(),`