---

yaml
---
r: 191543
b: refs/heads/try
c: b8c75e5
h: refs/heads/master
i:
  191541: 7d6c798
  191539: 359835a
  191535: 892e118
v: v3

Author: nrc

[refs]

@@ -2,7 +2,7 @@
 refs/heads/master: 809a554fca2d0ebc2ba50077016fe282a4064752
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: c64d671671aea2e44ee7fc6eb00ee75fc30ed7b9
-refs/heads/try: a41d32f560641995b5f6d28cf0e2be19cb61caea
+refs/heads/try: b8c75e5cdf0e28e25666459b8d61588f83730dff
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/dist-snap: ba4081a5a8573875fed17545846f6f6902c8ba8d
 refs/tags/release-0.2: c870d2dffb391e14efb05aa27898f1f6333a9596

branches/try/src/librustc_lint/builtin.rs

@@ -84,30 +84,6 @@ impl LintPass for WhileTrue {
     }
 }
 
-declare_lint! {
-    UNUSED_TYPECASTS,
-    Allow,
-    "detects unnecessary type casts that can be removed"
-}
-
-#[derive(Copy)]
-pub struct UnusedCasts;
-
-impl LintPass for UnusedCasts {
-    fn get_lints(&self) -> LintArray {
-        lint_array!(UNUSED_TYPECASTS)
-    }
-
-    fn check_expr(&mut self, cx: &Context, e: &ast::Expr) {
-        if let ast::ExprCast(ref expr, ref ty) = e.node {
-            let t_t = ty::expr_ty(cx.tcx, e);
-            if ty::expr_ty(cx.tcx, &**expr) == t_t {
-                cx.span_lint(UNUSED_TYPECASTS, ty.span, "unnecessary type cast");
-            }
-        }
-    }
-}
-
 declare_lint! {
     UNSIGNED_NEGATION,
     Warn,

branches/try/src/librustc_lint/lib.rs

@@ -90,7 +90,6 @@ pub fn register_builtins(store: &mut lint::LintStore, sess: Option<&Session>) {
     add_builtin!(sess,
                  HardwiredLints,
                  WhileTrue,
-                 UnusedCasts,
                  ImproperCTypes,
                  BoxPointers,
                  UnusedAttributes,