rust/tests/ui-internal/unnecessary_def_path.fixed

62 lines
2.1 KiB
Rust

//@aux-build:paths.rs
#![deny(clippy::internal)]
#![feature(rustc_private)]
extern crate clippy_utils;
extern crate paths;
extern crate rustc_hir;
extern crate rustc_lint;
extern crate rustc_middle;
extern crate rustc_span;
#[allow(unused)]
use clippy_utils::ty::{is_type_diagnostic_item, is_type_lang_item, match_type};
#[allow(unused)]
use clippy_utils::{
is_expr_path_def_path, is_path_diagnostic_item, is_res_diagnostic_ctor, is_res_lang_ctor, is_trait_method,
match_def_path, match_trait_method, path_res,
};
#[allow(unused)]
use rustc_hir::LangItem;
#[allow(unused)]
use rustc_span::sym;
use rustc_hir::def_id::DefId;
use rustc_hir::Expr;
use rustc_lint::LateContext;
use rustc_middle::ty::Ty;
#[allow(unused, clippy::unnecessary_def_path)]
static OPTION: [&str; 3] = ["core", "option", "Option"];
#[allow(unused, clippy::unnecessary_def_path)]
const RESULT: &[&str] = &["core", "result", "Result"];
fn _f<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>, did: DefId, expr: &Expr<'_>) {
let _ = is_type_diagnostic_item(cx, ty, sym::Option);
let _ = is_type_diagnostic_item(cx, ty, sym::Result);
let _ = is_type_diagnostic_item(cx, ty, sym::Result);
#[allow(unused, clippy::unnecessary_def_path)]
let rc_path = &["alloc", "rc", "Rc"];
let _ = is_type_diagnostic_item(cx, ty, sym::Rc);
let _ = is_type_diagnostic_item(cx, ty, sym::Option);
let _ = is_type_diagnostic_item(cx, ty, sym::Result);
let _ = is_type_lang_item(cx, ty, LangItem::OwnedBox);
let _ = is_type_diagnostic_item(cx, ty, sym::maybe_uninit_uninit);
let _ = cx.tcx.lang_items().get(LangItem::OwnedBox) == Some(did);
let _ = cx.tcx.is_diagnostic_item(sym::Option, did);
let _ = cx.tcx.lang_items().get(LangItem::OptionSome) == Some(did);
let _ = is_trait_method(cx, expr, sym::AsRef);
let _ = is_path_diagnostic_item(cx, expr, sym::Option);
let _ = path_res(cx, expr).opt_def_id().map_or(false, |id| cx.tcx.lang_items().get(LangItem::IteratorNext) == Some(id));
let _ = is_res_lang_ctor(cx, path_res(cx, expr), LangItem::OptionSome);
}
fn main() {}