Merge commit 'e329249b6a3a98830d860c74c8234a8dd9407436' into clippyup

[rust.git] / src / tools / clippy / clippy_lints / src / casts / cast_ptr_alignment.rs

diff --git a/src/tools/clippy/clippy_lints/src/casts/cast_ptr_alignment.rs b/src/tools/clippy/clippy_lints/src/casts/cast_ptr_alignment.rs
index 079b7ff0675b4b34ad1b8d96e7a5e7810a2bf811..a4ef1344ab9511beb75790081393d1e456c98040 100644 (file)
--- a/src/tools/clippy/clippy_lints/src/casts/cast_ptr_alignment.rs
+++ b/src/tools/clippy/clippy_lints/src/casts/cast_ptr_alignment.rs
@@ -1,11 +1,11 @@
 use clippy_utils::diagnostics::span_lint;
 use clippy_utils::is_hir_ty_cfg_dependant;
+use clippy_utils::ty::is_c_void;
 use if_chain::if_chain;
 use rustc_hir::{Expr, ExprKind, GenericArg};
 use rustc_lint::LateContext;
 use rustc_middle::ty::layout::LayoutOf;
 use rustc_middle::ty::{self, Ty};
-use rustc_span::symbol::sym;
 
 use super::CAST_PTR_ALIGNMENT;
 
@@ -62,19 +62,3 @@ fn lint_cast_ptr_alignment<'tcx>(cx: &LateContext<'tcx>, expr: &Expr<'_>, cast_f
         }
     }
 }
-
-/// Check if the given type is either `core::ffi::c_void` or
-/// one of the platform specific `libc::<platform>::c_void` of libc.
-fn is_c_void(cx: &LateContext<'_>, ty: Ty<'_>) -> bool {
-    if let ty::Adt(adt, _) = ty.kind() {
-        let names = cx.get_def_path(adt.did);
-
-        if names.is_empty() {
-            return false;
-        }
-        if names[0] == sym::libc || names[0] == sym::core && *names.last().unwrap() == sym!(c_void) {
-            return true;
-        }
-    }
-    false
-}