bjoernager/rust
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Add note to suggest using let _ = x to ignore the value

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This commit is contained in:
Urgau 2023-04-14 22:20:27 +02:00
parent d23f8957ae
commit e280df556d
6 changed files with 80 additions and 0 deletions
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4
compiler/rustc_lint/messages.ftl
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@ -523,12 +523,16 @@ lint_opaque_hidden_inferred_bound_sugg = add this bound
lint_drop_ref = calls to `std::mem::drop` with a reference instead of an owned value does nothing
.label = argument has type `{$arg_ty}`
.note = use `let _ = ...` to ignore the expression or result
lint_drop_copy = calls to `std::mem::drop` with a value that implements `Copy` does nothing
.label = argument has type `{$arg_ty}`
.note = use `let _ = ...` to ignore the expression or result
lint_forget_ref = calls to `std::mem::forget` with a reference instead of an owned value does nothing
.label = argument has type `{$arg_ty}`
.note = use `let _ = ...` to ignore the expression or result
lint_forget_copy = calls to `std::mem::forget` with a value that implements `Copy` does nothing
.label = argument has type `{$arg_ty}`
.note = use `let _ = ...` to ignore the expression or result

4
compiler/rustc_lint/src/lints.rs
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@ -665,6 +665,7 @@ pub struct ForLoopsOverFalliblesSuggestion<'a> {
// drop_ref.rs
#[derive(LintDiagnostic)]
#[diag(lint_drop_ref)]
#[note]
pub struct DropRefDiag<'a> {
pub arg_ty: Ty<'a>,
#[label]
@ -673,6 +674,7 @@ pub struct DropRefDiag<'a> {
#[derive(LintDiagnostic)]
#[diag(lint_drop_copy)]
#[note]
pub struct DropCopyDiag<'a> {
pub arg_ty: Ty<'a>,
#[label]
@ -681,6 +683,7 @@ pub struct DropCopyDiag<'a> {
#[derive(LintDiagnostic)]
#[diag(lint_forget_ref)]
#[note]
pub struct ForgetRefDiag<'a> {
pub arg_ty: Ty<'a>,
#[label]
@ -689,6 +692,7 @@ pub struct ForgetRefDiag<'a> {
#[derive(LintDiagnostic)]
#[diag(lint_forget_copy)]
#[note]
pub struct ForgetCopyDiag<'a> {
pub arg_ty: Ty<'a>,
#[label]