698363122e
Before this change, adding a lint was a difficult matter because it always had some overhead involved. This was because all lints would run, no matter their default level, or if the user had #![allow]ed them. This PR changes that
37 lines
1.6 KiB
Plaintext
37 lines
1.6 KiB
Plaintext
if let StmtKind::Let(local) = stmt.kind
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&& let Some(init) = local.init
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&& let ExprKind::Match(scrutinee, arms, MatchSource::Normal) = init.kind
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&& let ExprKind::Lit(ref lit) = scrutinee.kind
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&& let LitKind::Int(42, LitIntType::Unsuffixed) = lit.node
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&& arms.len() == 3
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&& let PatKind::Lit(lit_expr) = arms[0].pat.kind
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&& let ExprKind::Lit(ref lit1) = lit_expr.kind
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&& let LitKind::Int(16, LitIntType::Unsuffixed) = lit1.node
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&& arms[0].guard.is_none()
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&& let ExprKind::Lit(ref lit2) = arms[0].body.kind
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&& let LitKind::Int(5, LitIntType::Unsuffixed) = lit2.node
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&& let PatKind::Lit(lit_expr1) = arms[1].pat.kind
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&& let ExprKind::Lit(ref lit3) = lit_expr1.kind
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&& let LitKind::Int(17, LitIntType::Unsuffixed) = lit3.node
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&& arms[1].guard.is_none()
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&& let ExprKind::Block(block, None) = arms[1].body.kind
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&& block.stmts.len() == 1
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&& let StmtKind::Let(local1) = block.stmts[0].kind
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&& let Some(init1) = local1.init
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&& let ExprKind::Lit(ref lit4) = init1.kind
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&& let LitKind::Int(3, LitIntType::Unsuffixed) = lit4.node
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&& let PatKind::Binding(BindingMode::NONE, _, name, None) = local1.pat.kind
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&& name.as_str() == "x"
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&& let Some(trailing_expr) = block.expr
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&& let ExprKind::Path(ref qpath) = trailing_expr.kind
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&& match_qpath(qpath, &["x"])
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&& let PatKind::Wild = arms[2].pat.kind
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&& arms[2].guard.is_none()
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&& let ExprKind::Lit(ref lit5) = arms[2].body.kind
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&& let LitKind::Int(1, LitIntType::Unsuffixed) = lit5.node
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&& let PatKind::Binding(BindingMode::NONE, _, name1, None) = local.pat.kind
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&& name1.as_str() == "a"
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{
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// report your lint here
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}
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