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Diffstat (limited to '')
-rw-r--r-- | src/tools/clippy/tests/ui-internal/unnecessary_def_path.rs | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui-internal/unnecessary_def_path.rs b/src/tools/clippy/tests/ui-internal/unnecessary_def_path.rs new file mode 100644 index 000000000..f17fed6c6 --- /dev/null +++ b/src/tools/clippy/tests/ui-internal/unnecessary_def_path.rs @@ -0,0 +1,62 @@ +// run-rustfix +// 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 _ = match_type(cx, ty, &OPTION); + let _ = match_type(cx, ty, RESULT); + let _ = match_type(cx, ty, &["core", "result", "Result"]); + + #[allow(unused, clippy::unnecessary_def_path)] + let rc_path = &["alloc", "rc", "Rc"]; + let _ = clippy_utils::ty::match_type(cx, ty, rc_path); + + let _ = match_type(cx, ty, &paths::OPTION); + let _ = match_type(cx, ty, paths::RESULT); + + let _ = match_type(cx, ty, &["alloc", "boxed", "Box"]); + let _ = match_type(cx, ty, &["core", "mem", "maybe_uninit", "MaybeUninit", "uninit"]); + + let _ = match_def_path(cx, did, &["alloc", "boxed", "Box"]); + let _ = match_def_path(cx, did, &["core", "option", "Option"]); + let _ = match_def_path(cx, did, &["core", "option", "Option", "Some"]); + + let _ = match_trait_method(cx, expr, &["core", "convert", "AsRef"]); + + let _ = is_expr_path_def_path(cx, expr, &["core", "option", "Option"]); + let _ = is_expr_path_def_path(cx, expr, &["core", "iter", "traits", "Iterator", "next"]); + let _ = is_expr_path_def_path(cx, expr, &["core", "option", "Option", "Some"]); +} + +fn main() {} |