24 lines
763 B
Rust
24 lines
763 B
Rust
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use rustc_hir as hir;
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use rustc_lint::LateContext;
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use rustc_span::source_map::Span;
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use crate::utils::{match_trait_method, paths, span_lint_and_help};
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use super::INSPECT_FOR_EACH;
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/// lint use of `inspect().for_each()` for `Iterators`
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pub(super) fn lint<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx hir::Expr<'_>, inspect_span: Span) {
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if match_trait_method(cx, expr, &paths::ITERATOR) {
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let msg = "called `inspect(..).for_each(..)` on an `Iterator`";
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let hint = "move the code from `inspect(..)` to `for_each(..)` and remove the `inspect(..)`";
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span_lint_and_help(
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cx,
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INSPECT_FOR_EACH,
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inspect_span.with_hi(expr.span.hi()),
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msg,
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None,
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hint,
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);
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}
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}
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