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https://github.com/rust-lang/rust-clippy
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Ignore macros with !
operators in eq_op
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parent
3e74853d1f
commit
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2 changed files with 22 additions and 1 deletions
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@ -1,4 +1,6 @@
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use crate::utils::{implements_trait, is_copy, multispan_sugg, snippet, span_lint, span_lint_and_then, SpanlessEq};
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use crate::utils::{
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implements_trait, in_macro, is_copy, multispan_sugg, snippet, span_lint, span_lint_and_then, SpanlessEq,
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};
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use rustc_errors::Applicability;
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use rustc_hir::*;
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use rustc_lint::{LateContext, LateLintPass};
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@ -53,6 +55,16 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for EqOp {
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if e.span.from_expansion() {
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return;
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}
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let macro_with_not_op = |expr_kind: &ExprKind<'_>| {
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if let ExprKind::Unary(_, ref expr) = *expr_kind {
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in_macro(expr.span)
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} else {
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false
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}
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};
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if macro_with_not_op(&left.kind) || macro_with_not_op(&right.kind) {
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return;
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}
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if is_valid_operator(op) && SpanlessEq::new(cx).ignore_fn().eq_expr(left, right) {
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span_lint(
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cx,
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@ -73,6 +73,15 @@ macro_rules! check_if_named_foo {
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)
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}
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macro_rules! bool_macro {
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($expression:expr) => {
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true
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};
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}
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#[allow(clippy::short_circuit_statement)]
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fn check_ignore_macro() {
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check_if_named_foo!(foo);
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// checks if the lint ignores macros with `!` operator
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!bool_macro!(1) && !bool_macro!("");
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}
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