fixed bug in fold's traversal of cast exprs

jbclements · jbclements · commit 41a939aa5f0a · 2013-09-06T09:28:49.000-07:00
diff --git a/src/libsyntax/fold.rs b/src/libsyntax/fold.rs
@@ -545,7 +545,7 @@ pub fn noop_fold_expr(e: &Expr_, fld: @ast_fold) -> Expr_ {
         ExprDoBody(f) => ExprDoBody(fld.fold_expr(f)),
         ExprLit(_) => (*e).clone(),
         ExprCast(expr, ref ty) => {
-            ExprCast(fld.fold_expr(expr), (*ty).clone())
+            ExprCast(fld.fold_expr(expr), fld.fold_ty(ty))
         }
         ExprAddrOf(m, ohs) => ExprAddrOf(m, fld.fold_expr(ohs)),
         ExprIf(cond, ref tr, fl) => {

Original file line number	Diff line number	Diff line change
`@@ -545,7 +545,7 @@ pub fn noop_fold_expr(e: &Expr_, fld: @ast_fold) -> Expr_ {`
`545`	`545`	`ExprDoBody(f) => ExprDoBody(fld.fold_expr(f)),`
`546`	`546`	`ExprLit(_) => (*e).clone(),`
`547`	`547`	`ExprCast(expr, ref ty) => {`
`548`		`- ExprCast(fld.fold_expr(expr), (*ty).clone())`
	`548`	`+ ExprCast(fld.fold_expr(expr), fld.fold_ty(ty))`
`549`	`549`	`}`
`550`	`550`	`ExprAddrOf(m, ohs) => ExprAddrOf(m, fld.fold_expr(ohs)),`
`551`	`551`	`ExprIf(cond, ref tr, fl) => {`