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if let Some(higher::ForLoop { pat: pat, arg: arg, body: body, .. }) = higher::ForLoop::hir(expr)
&& let PatKind::Binding(BindingMode::NONE, _, name, None) = pat.kind
&& name.as_str() == "i"
&& let ExprKind::Struct(qpath, fields, None) = arg.kind
&& matches!(qpath, QPath::LangItem(LangItem::Range, _))
&& fields.len() == 2
&& fields[0].ident.as_str() == "start"
&& let ExprKind::Lit(ref lit) = fields[0].expr.kind
&& let LitKind::Int(0, LitIntType::Unsuffixed) = lit.node
&& fields[1].ident.as_str() == "end"
&& let ExprKind::Lit(ref lit1) = fields[1].expr.kind
&& let LitKind::Int(1, LitIntType::Unsuffixed) = lit1.node
&& let ExprKind::Block(block, None) = body.kind
&& block.stmts.len() == 1
&& let StmtKind::Semi(e) = block.stmts[0].kind
&& let ExprKind::Block(block1, None) = e.kind
&& block1.stmts.len() == 1
&& let StmtKind::Semi(e1) = block1.stmts[0].kind
&& let ExprKind::Call(func, args) = e1.kind
&& paths::STD_IO_STDIO__PRINT.matches_path(cx, func) // Add the path to `clippy_utils::paths` if needed
&& args.len() == 1
&& let ExprKind::Block(block2, None) = args[0].kind
&& block2.stmts.len() == 2
&& let StmtKind::Let(local) = block2.stmts[0].kind
&& let Some(init) = local.init
&& let ExprKind::Tup(elements) = init.kind
&& elements.len() == 1
&& let ExprKind::AddrOf(BorrowKind::Ref, Mutability::Not, inner) = elements[0].kind
&& let PatKind::Binding(BindingMode::NONE, _, name1, None) = local.pat.kind
&& name1.as_str() == "args"
&& let StmtKind::Let(local1) = block2.stmts[1].kind
&& let Some(init1) = local1.init
&& let ExprKind::Array(elements1) = init1.kind
&& elements1.len() == 1
&& let ExprKind::Call(func1, args1) = elements1[0].kind
&& paths::CORE_FMT_RT_ARGUMENT_NEW_DISPLAY.matches_path(cx, func1) // Add the path to `clippy_utils::paths` if needed
&& args1.len() == 1
&& let ExprKind::Field(object, field_name) = args1[0].kind
&& field_name.as_str() == "0"
&& let PatKind::Binding(BindingMode::NONE, _, name2, None) = local1.pat.kind
&& name2.as_str() == "args"
&& let Some(trailing_expr) = block2.expr
&& let ExprKind::Call(func2, args2) = trailing_expr.kind
&& paths::CORE_FMT_RT_NEW_V1.matches_path(cx, func2) // Add the path to `clippy_utils::paths` if needed
&& args2.len() == 2
&& let ExprKind::AddrOf(BorrowKind::Ref, Mutability::Not, inner1) = args2[0].kind
&& let ExprKind::Array(elements2) = inner1.kind
&& elements2.len() == 2
&& let ExprKind::Lit(ref lit2) = elements2[0].kind
&& let LitKind::Str(s, _) = lit2.node
&& s.as_str() == ""
&& let ExprKind::Lit(ref lit3) = elements2[1].kind
&& let LitKind::Str(s1, _) = lit3.node
&& s1.as_str() == "\n"
&& let ExprKind::AddrOf(BorrowKind::Ref, Mutability::Not, inner2) = args2[1].kind
&& block1.expr.is_none()
&& block.expr.is_none()
{
// report your lint here
}
|
