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
47 lines
1.9 KiB
Plaintext
47 lines
1.9 KiB
Plaintext
if let StmtKind::Let(local) = stmt.kind
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&& let Some(init) = local.init
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&& let ExprKind::If(cond, then, Some(else_expr)) = init.kind
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&& let ExprKind::DropTemps(expr) = cond.kind
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&& let ExprKind::Lit(ref lit) = expr.kind
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&& let LitKind::Bool(true) = lit.node
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&& let ExprKind::Block(block, None) = then.kind
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&& block.stmts.len() == 1
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&& let StmtKind::Semi(e) = block.stmts[0].kind
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&& let ExprKind::Binary(op, left, right) = e.kind
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&& BinOpKind::Eq == op.node
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&& let ExprKind::Lit(ref lit1) = left.kind
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&& let LitKind::Int(1, LitIntType::Unsuffixed) = lit1.node
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&& let ExprKind::Lit(ref lit2) = right.kind
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&& let LitKind::Int(1, LitIntType::Unsuffixed) = lit2.node
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&& block.expr.is_none()
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&& let ExprKind::Block(block1, None) = else_expr.kind
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&& block1.stmts.len() == 1
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&& let StmtKind::Semi(e1) = block1.stmts[0].kind
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&& let ExprKind::Binary(op1, left1, right1) = e1.kind
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&& BinOpKind::Eq == op1.node
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&& let ExprKind::Lit(ref lit3) = left1.kind
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&& let LitKind::Int(2, LitIntType::Unsuffixed) = lit3.node
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&& let ExprKind::Lit(ref lit4) = right1.kind
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&& let LitKind::Int(2, LitIntType::Unsuffixed) = lit4.node
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&& block1.expr.is_none()
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&& let PatKind::Wild = local.pat.kind
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{
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// report your lint here
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}
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if let ExprKind::If(cond, then, Some(else_expr)) = expr.kind
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&& let ExprKind::Let(let_expr) = cond.kind
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&& let PatKind::Lit(lit_expr) = let_expr.pat.kind
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&& let ExprKind::Lit(ref lit) = lit_expr.kind
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&& let LitKind::Bool(true) = lit.node
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&& let ExprKind::Path(ref qpath) = let_expr.init.kind
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&& match_qpath(qpath, &["a"])
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&& let ExprKind::Block(block, None) = then.kind
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&& block.stmts.is_empty()
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&& block.expr.is_none()
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&& let ExprKind::Block(block1, None) = else_expr.kind
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&& block1.stmts.is_empty()
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&& block1.expr.is_none()
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{
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// report your lint here
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}
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