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| -rw-r--r-- | src/librustc/hir/lowering.rs | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/src/librustc/hir/lowering.rs b/src/librustc/hir/lowering.rs index 099e13dfa09..0876e609396 100644 --- a/src/librustc/hir/lowering.rs +++ b/src/librustc/hir/lowering.rs @@ -29,12 +29,6 @@ // are unique). Every new node must have a unique id. Avoid cloning HIR nodes. // If you do, you must then set the new node's id to a fresh one. // -// We must also cache gensym'ed Idents to ensure that we get the same Ident -// every time we lower a node with gensym'ed names. One consequence of this is -// that you can only gensym a name once in a lowering (you don't need to worry -// about nested lowering though). That's because we cache based on the name and -// the currently cached node id, which is unique per lowered node. -// // Spans are used for error messages and for tools to map semantics back to // source code. It is therefore not as important with spans as ids to be strict // about use (you can't break the compiler by screwing up a span). Obviously, a |