49 lines
2.1 KiB
Plaintext
49 lines
2.1 KiB
Plaintext
if_chain! {
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if let StmtKind::Local(ref local) = stmt.kind;
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if let Some(ref init) = local.init;
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if let Some(higher::If { cond: cond, then: then, r#else: else_expr}) = higher::If::hir(init);
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if let ExprKind::Lit(ref lit) = cond.kind;
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if let LitKind::Bool(true) = lit.node;
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if let ExprKind::Block(ref block, ref label) = then.kind;
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if block.stmts.len() == 1;
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if let StmtKind::Semi(ref e) = block.stmts[0].kind;
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if let ExprKind::Binary(ref op, ref left, ref right) = e.kind;
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if BinOpKind::Eq == op.node;
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if let ExprKind::Lit(ref lit1) = left.kind;
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if let LitKind::Int(1, LitIntType::Unsuffixed) = lit1.node;
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if let ExprKind::Lit(ref lit2) = right.kind;
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if let LitKind::Int(1, LitIntType::Unsuffixed) = lit2.node;
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if block.expr.is_none();
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if let ExprKind::Block(ref block1, ref label1) = else_expr.kind;
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if block1.stmts.len() == 1;
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if let StmtKind::Semi(ref e1) = block1.stmts[0].kind;
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if let ExprKind::Binary(ref op1, ref left1, ref right1) = e1.kind;
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if BinOpKind::Eq == op1.node;
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if let ExprKind::Lit(ref lit3) = left1.kind;
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if let LitKind::Int(2, LitIntType::Unsuffixed) = lit3.node;
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if let ExprKind::Lit(ref lit4) = right1.kind;
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if let LitKind::Int(2, LitIntType::Unsuffixed) = lit4.node;
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if block1.expr.is_none();
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if let PatKind::Wild = local.pat.kind;
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then {
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// report your lint here
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}
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}
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if_chain! {
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if let Some(higher::IfLet { let_pat: let_pat, let_expr: let_expr, if_then: if_then, if_else: else_expr}) = higher::IfLet::hir(expr);
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if let PatKind::Lit(ref lit_expr) = let_pat.kind;
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if let ExprKind::Lit(ref lit) = lit_expr.kind;
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if let LitKind::Bool(true) = lit.node;
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if let ExprKind::Path(ref qpath) = let_expr.kind;
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if match_qpath(qpath, &["a"]);
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if let ExprKind::Block(ref block, ref label) = if_then.kind;
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if block.stmts.len() == 0;
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if block.expr.is_none();
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if let ExprKind::Block(ref block1, ref label1) = else_expr.kind;
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if block1.stmts.len() == 0;
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if block1.expr.is_none();
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then {
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// report your lint here
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}
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}
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