---

yaml
---
r: 192286
b: refs/heads/master
c: 088cd56
h: refs/heads/master
v: v3

Author: nrc

[refs]

@@ -1,5 +1,5 @@
 ---
-refs/heads/master: 9374c216f6040189301aeb043d317c12ffb17a0b
+refs/heads/master: 088cd566ea87c90a9c765a113a2310d60849e7c1
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: a923278c6278c63468d74772c58dbf788e88f58c
 refs/heads/try: ce76bff75603a754d092456285ff455eb871633d

trunk/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,

trunk/src/librustc_lint/lib.rs

@@ -89,7 +89,6 @@ pub fn register_builtins(store: &mut lint::LintStore, sess: Option<&Session>) {
     add_builtin!(sess,
                  HardwiredLints,
                  WhileTrue,
-                 UnusedCasts,
                  ImproperCTypes,
                  BoxPointers,
                  UnusedAttributes,