1085df58ac
`unseparated_literal_suffix`
This commit adds a configuration `literal-suffix-style` to enforce a
specific style for unseparated_literal_suffix. The configuration accepts
two values:
- "separated"
enforce all literals to be written separately (e.g. `123_i32`)
- "unseparated"
enforce all literals to be written as unseparated (e.g. `123i32`)
Not specifying a value means that there is no preference on style and
any style should not be warned.
19 lines
556 B
Rust
19 lines
556 B
Rust
use clippy_utils::diagnostics::span_lint;
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use rustc_ast::ast::{Expr, ExprKind, UnOp};
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use rustc_lint::EarlyContext;
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use super::DOUBLE_NEG;
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pub(super) fn check(cx: &EarlyContext<'_>, expr: &Expr) {
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if let ExprKind::Unary(UnOp::Neg, ref inner) = expr.kind {
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if let ExprKind::Unary(UnOp::Neg, _) = inner.kind {
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span_lint(
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cx,
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DOUBLE_NEG,
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expr.span,
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"`--x` could be misinterpreted as pre-decrement by C programmers, is usually a no-op",
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);
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}
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}
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}
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