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refactor: get the required variables with MethodCall

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This commit is contained in:
kyoto7250 2022-05-25 09:11:29 +09:00
parent e47c5b0e03
commit d0f93c12a2
1 changed files with 2 additions and 5 deletions
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7
clippy_lints/src/get_first.rs
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@ -40,14 +40,11 @@ declare_lint_pass!(GetFirst => [GET_FIRST]);
impl<'tcx> LateLintPass<'tcx> for GetFirst {
fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx hir::Expr<'_>) {
if_chain! {
if let hir::ExprKind::MethodCall(_, expr_args, _) = &expr.kind;
if let hir::ExprKind::MethodCall(_, [struct_calling_on, method_arg], _) = &expr.kind;
if let Some(expr_def_id) = cx.typeck_results().type_dependent_def_id(expr.hir_id);
if match_def_path(cx, expr_def_id, &paths::SLICE_GET) && expr_args.len() == 2;
if match_def_path(cx, expr_def_id, &paths::SLICE_GET);
if let Some(struct_calling_on) = expr_args.get(0);
if let Some(_) = is_slice_of_primitives(cx, struct_calling_on);
if let Some(method_arg) = expr_args.get(1);
if let hir::ExprKind::Lit(Spanned { node: LitKind::Int(0, _), .. }) = method_arg.kind;
then {