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Add note to is_lint_allowed about lint emission

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xFrednet 2022-06-25 14:16:34 +02:00
parent 6427ba4855
commit 4d41a97735
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1 changed files with 6 additions and 2 deletions
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8
clippy_utils/src/lib.rs
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@ -1539,9 +1539,13 @@ fn is_err(cx: &LateContext<'_>, arm: &Arm<'_>) -> bool {
None None
} }
/// Returns `true` if the lint is allowed in the current context /// Returns `true` if the lint is allowed in the current context. This is useful for
/// skipping long running code when it's unnecessary
/// ///
/// Useful for skipping long running code when it's unnecessary /// This function should check the lint level for the same node, that the lint will
/// be emitted at. If the information is buffered to be emitted at a later point, please
/// make sure to use `span_lint_hir` functions to emit the lint. This ensures that
/// expectations at the checked nodes will be fulfilled.
pub fn is_lint_allowed(cx: &LateContext<'_>, lint: &'static Lint, id: HirId) -> bool { pub fn is_lint_allowed(cx: &LateContext<'_>, lint: &'static Lint, id: HirId) -> bool {
cx.tcx.lint_level_at_node(lint, id).0 == Level::Allow cx.tcx.lint_level_at_node(lint, id).0 == Level::Allow
} }