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Merge commit 'bf1c6f9871' into clippyup

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This commit is contained in:
Eduardo Broto 2020-10-23 22:16:59 +02:00
parent fcde7683fe
commit cdb555f4fc
74 changed files with 2147 additions and 593 deletions
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7
clippy_lints/src/mut_key.rs
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@ -1,6 +1,7 @@
use crate::utils::{match_def_path, paths, span_lint, trait_ref_of_method};
use rustc_hir as hir;
use rustc_lint::{LateContext, LateLintPass};
use rustc_middle::ty::TypeFoldable;
use rustc_middle::ty::{Adt, Array, RawPtr, Ref, Slice, Tuple, Ty, TypeAndMut};
use rustc_session::{declare_lint_pass, declare_tool_lint};
use rustc_span::source_map::Span;
@ -120,7 +121,11 @@ fn is_mutable_type<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>, span: Span) -> bo
size.try_eval_usize(cx.tcx, cx.param_env).map_or(true, |u| u != 0) && is_mutable_type(cx, inner_ty, span)
},
Tuple(..) => ty.tuple_fields().any(|ty| is_mutable_type(cx, ty, span)),
Adt(..) => cx.tcx.layout_of(cx.param_env.and(ty)).is_ok() && !ty.is_freeze(cx.tcx.at(span), cx.param_env),
Adt(..) => {
cx.tcx.layout_of(cx.param_env.and(ty)).is_ok()
&& !ty.has_escaping_bound_vars()
&& !ty.is_freeze(cx.tcx.at(span), cx.param_env)
},
_ => false,
}
}