mirror of
https://github.com/rust-lang/rust
synced 2024-10-14 04:23:37 +00:00
Silence unused_imports lint for redundant imports
This commit is contained in:
Michael Goulet
parent
72fe8a0f00
commit
0db2a4010a
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@ -1391,6 +1391,7 @@ pub(crate) fn check_for_redundant_imports(&mut self, import: Import<'a>) -> bool
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let mut redundant_spans: Vec<_> = redundant_span.present_items().collect();
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redundant_spans.sort();
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redundant_spans.dedup();
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/* FIXME(unused_imports): Add this back as a new lint
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self.lint_buffer.buffer_lint_with_diagnostic(
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UNUSED_IMPORTS,
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id,
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@ -1398,6 +1399,7 @@ pub(crate) fn check_for_redundant_imports(&mut self, import: Import<'a>) -> bool
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format!("the item `{source}` is imported redundantly"),
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BuiltinLintDiag::RedundantImport(redundant_spans, source),
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);
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*/
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return true;
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}
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@ -177,7 +177,7 @@ enum ImplTraitContext {
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/// Used for tracking import use types which will be used for redundant import checking.
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/// ### Used::Scope Example
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/// ```rust,compile_fail
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/// ```rust,ignore (redundant_imports)
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/// #![deny(unused_imports)]
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/// use std::mem::drop;
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/// fn main() {
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@ -1,7 +1,7 @@
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//@ check-pass
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// Check that we detect imports that are redundant due to the extern prelude
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// and that we emit a reasonable diagnostic.
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// issue: rust-lang/rust#121915
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//~^^^ NOTE the item `aux_issue_121915` is already defined by the extern prelude
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// See also the discussion in <https://github.com/rust-lang/rust/pull/122954>.
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@ -9,9 +9,8 @@
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//@ aux-build: aux-issue-121915.rs
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#[deny(unused_imports)]
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//~^ NOTE the lint level is defined here
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fn main() {
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use aux_issue_121915;
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//~^ ERROR the item `aux_issue_121915` is imported redundantly
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//FIXME(unused_imports): ~^ ERROR the item `aux_issue_121915` is imported redundantly
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aux_issue_121915::item();
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}
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@ -1,14 +0,0 @@
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error: the item `aux_issue_121915` is imported redundantly
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--> $DIR/redundant-import-extern-prelude.rs:14:9
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LL | use aux_issue_121915;
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| ^^^^^^^^^^^^^^^^ the item `aux_issue_121915` is already defined by the extern prelude
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note: the lint level is defined here
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--> $DIR/redundant-import-extern-prelude.rs:11:8
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LL | #[deny(unused_imports)]
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| ^^^^^^^^^^^^^^
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error: aborting due to 1 previous error
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@ -1,3 +1,4 @@
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//@ check-pass
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//@ compile-flags: --extern aux_issue_121915 --edition 2015
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//@ aux-build: aux-issue-121915.rs
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@ -6,6 +7,6 @@
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#[deny(unused_imports)]
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fn main() {
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use aux_issue_121915;
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//~^ ERROR the item `aux_issue_121915` is imported redundantly
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//FIXME(unused_imports): ~^ ERROR the item `aux_issue_121915` is imported redundantly
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aux_issue_121915::item();
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}
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@ -1,17 +0,0 @@
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error: the item `aux_issue_121915` is imported redundantly
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--> $DIR/redundant-import-issue-121915-2015.rs:8:9
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LL | extern crate aux_issue_121915;
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| ------------------------------ the item `aux_issue_121915` is already imported here
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...
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LL | use aux_issue_121915;
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| ^^^^^^^^^^^^^^^^
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note: the lint level is defined here
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--> $DIR/redundant-import-issue-121915-2015.rs:6:8
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LL | #[deny(unused_imports)]
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| ^^^^^^^^^^^^^^
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error: aborting due to 1 previous error
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@ -1,6 +1,6 @@
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//@ check-pass
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// Check that we detect imports (of built-in attributes) that are redundant due to
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// the language prelude and that we emit a reasonable diagnostic.
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//~^^ NOTE the item `allow` is already defined by the extern prelude
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// Note that we use the term "extern prelude" in the label even though "language prelude"
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// would be more correct. However, it's not worth special-casing this.
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@ -10,9 +10,8 @@
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//@ edition: 2018
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#![deny(unused_imports)]
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//~^ NOTE the lint level is defined here
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use allow; //~ ERROR the item `allow` is imported redundantly
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use allow; //FIXME(unused_imports): ~ ERROR the item `allow` is imported redundantly
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#[allow(unused)]
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fn main() {}
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@ -1,14 +0,0 @@
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error: the item `allow` is imported redundantly
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--> $DIR/redundant-import-lang-prelude-attr.rs:15:5
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LL | use allow;
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| ^^^^^ the item `allow` is already defined by the extern prelude
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note: the lint level is defined here
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--> $DIR/redundant-import-lang-prelude-attr.rs:12:9
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LL | #![deny(unused_imports)]
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| ^^^^^^^^^^^^^^
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error: aborting due to 1 previous error
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@ -1,6 +1,6 @@
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//@ check-pass
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// Check that we detect imports that are redundant due to the language prelude
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// and that we emit a reasonable diagnostic.
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//~^^ NOTE the item `u8` is already defined by the extern prelude
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// Note that we use the term "extern prelude" in the label even though "language prelude"
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// would be more correct. However, it's not worth special-casing this.
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@ -8,10 +8,9 @@
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// See also the discussion in <https://github.com/rust-lang/rust/pull/122954>.
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#![deny(unused_imports)]
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//~^ NOTE the lint level is defined here
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use std::primitive::u8;
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//~^ ERROR the item `u8` is imported redundantly
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//FIXME(unused_imports): ~^ ERROR the item `u8` is imported redundantly
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const _: u8 = 0;
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@ -1,14 +0,0 @@
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error: the item `u8` is imported redundantly
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--> $DIR/redundant-import-lang-prelude.rs:13:5
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LL | use std::primitive::u8;
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| ^^^^^^^^^^^^^^^^^^ the item `u8` is already defined by the extern prelude
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note: the lint level is defined here
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--> $DIR/redundant-import-lang-prelude.rs:10:9
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LL | #![deny(unused_imports)]
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| ^^^^^^^^^^^^^^
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error: aborting due to 1 previous error
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@ -1,19 +1,20 @@
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//@ compile-flags: --edition 2021
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#![deny(unused_imports)]
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#![allow(dead_code)]
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fn test0() {
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// Test remove FlatUnused
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use std::convert::TryFrom;
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//~^ ERROR the item `TryFrom` is imported redundantly
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//FIXME(unused_imports): ~^ ERROR the item `TryFrom` is imported redundantly
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let _ = u32::try_from(5i32);
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}
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fn test1() {
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// FIXME(yukang) Test remove NestedFullUnused
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use std::convert::{TryFrom, TryInto};
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//~^ ERROR the item `TryFrom` is imported redundantly
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//~| ERROR the item `TryInto` is imported redundantly
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//FIXME(unused_imports): ~^ ERROR the item `TryFrom` is imported redundantly
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//FIXME(unused_imports): ~| ERROR the item `TryInto` is imported redundantly
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let _ = u32::try_from(5i32);
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let _a: i32 = u32::try_into(5u32).unwrap();
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@ -23,7 +24,7 @@ fn test2() {
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// FIXME(yukang): Test remove both redundant and unused
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use std::convert::{AsMut, Into};
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//~^ ERROR unused import: `AsMut`
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//~| ERROR the item `Into` is imported redundantly
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//FIXME(unused_imports): ~| ERROR the item `Into` is imported redundantly
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let _a: u32 = (5u8).into();
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}
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@ -1,56 +1,20 @@
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error: the item `TryFrom` is imported redundantly
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--> $DIR/suggest-remove-issue-121315.rs:7:9
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error: unused import: `AsMut`
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--> $DIR/suggest-remove-issue-121315.rs:25:24
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LL | use std::convert::TryFrom;
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| ^^^^^^^^^^^^^^^^^^^^^
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--> $SRC_DIR/std/src/prelude/mod.rs:LL:COL
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= note: the item `TryFrom` is already defined here
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LL | use std::convert::{AsMut, Into};
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| ^^^^^
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note: the lint level is defined here
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--> $DIR/suggest-remove-issue-121315.rs:2:9
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--> $DIR/suggest-remove-issue-121315.rs:3:9
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LL | #![deny(unused_imports)]
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| ^^^^^^^^^^^^^^
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error: the item `TryFrom` is imported redundantly
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--> $DIR/suggest-remove-issue-121315.rs:14:24
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LL | use std::convert::{TryFrom, TryInto};
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| ^^^^^^^
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--> $SRC_DIR/std/src/prelude/mod.rs:LL:COL
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= note: the item `TryFrom` is already defined here
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error: the item `TryInto` is imported redundantly
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--> $DIR/suggest-remove-issue-121315.rs:14:33
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LL | use std::convert::{TryFrom, TryInto};
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| ^^^^^^^
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--> $SRC_DIR/std/src/prelude/mod.rs:LL:COL
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= note: the item `TryInto` is already defined here
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error: unused import: `AsMut`
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--> $DIR/suggest-remove-issue-121315.rs:24:24
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LL | use std::convert::{AsMut, Into};
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| ^^^^^
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error: the item `Into` is imported redundantly
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--> $DIR/suggest-remove-issue-121315.rs:24:31
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LL | use std::convert::{AsMut, Into};
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| ^^^^
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--> $SRC_DIR/std/src/prelude/mod.rs:LL:COL
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= note: the item `Into` is already defined here
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error: unused import: `From`
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--> $DIR/suggest-remove-issue-121315.rs:33:24
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--> $DIR/suggest-remove-issue-121315.rs:34:24
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LL | use std::convert::{From, Infallible};
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| ^^^^
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error: aborting due to 6 previous errors
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error: aborting due to 2 previous errors
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@ -1,9 +1,10 @@
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//@ check-pass
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#![deny(unused_imports)]
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struct S;
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fn main() {
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use S; //~ ERROR the item `S` is imported redundantly
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use S; //FIXME(unused_imports): ~ ERROR the item `S` is imported redundantly
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let _s = S;
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}
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@ -1,17 +0,0 @@
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error: the item `S` is imported redundantly
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--> $DIR/issue-59896.rs:6:9
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LL | struct S;
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| --------- the item `S` is already defined here
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...
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LL | use S;
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| ^
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note: the lint level is defined here
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--> $DIR/issue-59896.rs:1:9
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LL | #![deny(unused_imports)]
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| ^^^^^^^^^^^^^^
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error: aborting due to 1 previous error
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@ -9,7 +9,7 @@ pub mod bar {
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use bar::*;
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pub fn warning() -> Foo {
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use bar::Foo; //~ WARNING imported redundantly
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use bar::Foo; //FIXME(unused_imports): ~ WARNING imported redundantly
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Foo(Bar('a'))
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}
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@ -1,17 +0,0 @@
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warning: the item `Foo` is imported redundantly
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--> $DIR/use-redundant-glob-parent.rs:12:9
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LL | use bar::*;
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| ------ the item `Foo` is already imported here
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...
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LL | use bar::Foo;
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| ^^^^^^^^
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note: the lint level is defined here
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--> $DIR/use-redundant-glob-parent.rs:2:9
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LL | #![warn(unused_imports)]
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| ^^^^^^^^^^^^^^
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warning: 1 warning emitted
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@ -8,7 +8,7 @@ pub mod bar {
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pub fn warning() -> bar::Foo {
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use bar::*;
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use bar::Foo; //~ WARNING imported redundantly
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use bar::Foo; //FIXME(unused_imports): ~ WARNING imported redundantly
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Foo(Bar('a'))
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}
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@ -1,16 +0,0 @@
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warning: the item `Foo` is imported redundantly
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--> $DIR/use-redundant-glob.rs:11:9
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LL | use bar::*;
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| ------ the item `Foo` is already imported here
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LL | use bar::Foo;
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| ^^^^^^^^
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note: the lint level is defined here
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--> $DIR/use-redundant-glob.rs:2:9
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LL | #![warn(unused_imports)]
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| ^^^^^^^^^^^^^^
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warning: 1 warning emitted
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@ -23,7 +23,8 @@ fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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fn main() {
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{
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use std::string::String; //~ WARNING the item `String` is imported redundantly
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use std::string::String;
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//FIXME(unused_imports): ~^ WARNING the item `String` is imported redundantly
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// 'String' from 'std::string::String'.
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let s = String::new();
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println!("{}", s);
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@ -1,17 +0,0 @@
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warning: the item `String` is imported redundantly
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--> $DIR/use-redundant-issue-71450.rs:26:13
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LL | use std::string::String;
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| ^^^^^^^^^^^^^^^^^^^
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--> $SRC_DIR/std/src/prelude/mod.rs:LL:COL
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= note: the item `String` is already defined here
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note: the lint level is defined here
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--> $DIR/use-redundant-issue-71450.rs:3:9
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LL | #![warn(unused_imports)]
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| ^^^^^^^^^^^^^^
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warning: 1 warning emitted
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@ -2,11 +2,15 @@
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#![warn(unused_imports)]
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use std::option::Option::Some;//~ WARNING the item `Some` is imported redundantly
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use std::option::Option::None; //~ WARNING the item `None` is imported redundantly
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use std::option::Option::Some;
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//FIXME(unused_imports): ~^ WARNING the item `Some` is imported redundantly
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use std::option::Option::None;
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//FIXME(unused_imports): ~ WARNING the item `None` is imported redundantly
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use std::result::Result::Ok;//~ WARNING the item `Ok` is imported redundantly
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use std::result::Result::Err;//~ WARNING the item `Err` is imported redundantly
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use std::result::Result::Ok;
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//FIXME(unused_imports): ~^ WARNING the item `Ok` is imported redundantly
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use std::result::Result::Err;
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//FIXME(unused_imports): ~^ WARNING the item `Err` is imported redundantly
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use std::convert::{TryFrom, TryInto};
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fn main() {
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@ -1,44 +0,0 @@
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warning: the item `Some` is imported redundantly
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--> $DIR/use-redundant-prelude-rust-2015.rs:5:5
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LL | use std::option::Option::Some;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^
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--> $SRC_DIR/std/src/prelude/mod.rs:LL:COL
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= note: the item `Some` is already defined here
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note: the lint level is defined here
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--> $DIR/use-redundant-prelude-rust-2015.rs:2:9
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LL | #![warn(unused_imports)]
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| ^^^^^^^^^^^^^^
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warning: the item `None` is imported redundantly
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--> $DIR/use-redundant-prelude-rust-2015.rs:6:5
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LL | use std::option::Option::None;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^
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--> $SRC_DIR/std/src/prelude/mod.rs:LL:COL
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|
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= note: the item `None` is already defined here
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warning: the item `Ok` is imported redundantly
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--> $DIR/use-redundant-prelude-rust-2015.rs:8:5
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LL | use std::result::Result::Ok;
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| ^^^^^^^^^^^^^^^^^^^^^^^
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--> $SRC_DIR/std/src/prelude/mod.rs:LL:COL
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|
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= note: the item `Ok` is already defined here
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warning: the item `Err` is imported redundantly
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--> $DIR/use-redundant-prelude-rust-2015.rs:9:5
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LL | use std::result::Result::Err;
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| ^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
--> $SRC_DIR/std/src/prelude/mod.rs:LL:COL
|
||||
|
|
||||
= note: the item `Err` is already defined here
|
||||
|
||||
warning: 4 warnings emitted
|
||||
|
||||
|
|
@ -2,8 +2,10 @@
|
|||
//@ edition:2021
|
||||
#![warn(unused_imports)]
|
||||
|
||||
use std::convert::TryFrom;//~ WARNING the item `TryFrom` is imported redundantly
|
||||
use std::convert::TryInto;//~ WARNING the item `TryInto` is imported redundantly
|
||||
use std::convert::TryFrom;
|
||||
//FIXME(unused_imports): ~^ WARNING the item `TryFrom` is imported redundantly
|
||||
use std::convert::TryInto;
|
||||
//FIXME(unused_imports): ~^ WARNING the item `TryInto` is imported redundantly
|
||||
|
||||
fn main() {
|
||||
let _e: Result<i32, _> = 8u8.try_into();
|
||||
|
|
|
|||
|
|
@ -1,26 +0,0 @@
|
|||
warning: the item `TryFrom` is imported redundantly
|
||||
--> $DIR/use-redundant-prelude-rust-2021.rs:5:5
|
||||
|
|
||||
LL | use std::convert::TryFrom;
|
||||
| ^^^^^^^^^^^^^^^^^^^^^
|
||||
--> $SRC_DIR/std/src/prelude/mod.rs:LL:COL
|
||||
|
|
||||
= note: the item `TryFrom` is already defined here
|
||||
|
|
||||
note: the lint level is defined here
|
||||
--> $DIR/use-redundant-prelude-rust-2021.rs:3:9
|
||||
|
|
||||
LL | #![warn(unused_imports)]
|
||||
| ^^^^^^^^^^^^^^
|
||||
|
||||
warning: the item `TryInto` is imported redundantly
|
||||
--> $DIR/use-redundant-prelude-rust-2021.rs:6:5
|
||||
|
|
||||
LL | use std::convert::TryInto;
|
||||
| ^^^^^^^^^^^^^^^^^^^^^
|
||||
--> $SRC_DIR/std/src/prelude/mod.rs:LL:COL
|
||||
|
|
||||
= note: the item `TryInto` is already defined here
|
||||
|
||||
warning: 2 warnings emitted
|
||||
|
||||
|
|
@ -18,7 +18,7 @@ mod m2 { pub struct S {} }
|
|||
use m2::*; //~ WARNING unused import
|
||||
|
||||
fn main() {
|
||||
use crate::foo::Bar; //~ WARNING imported redundantly
|
||||
use crate::foo::Bar; //FIXME(unused_imports): ~ WARNING imported redundantly
|
||||
let _a: Bar = 3;
|
||||
baz();
|
||||
|
||||
|
|
|
|||
|
|
@ -16,14 +16,5 @@ warning: unused import: `m2::*`
|
|||
LL | use m2::*;
|
||||
| ^^^^^
|
||||
|
||||
warning: the item `Bar` is imported redundantly
|
||||
--> $DIR/use-redundant.rs:21:9
|
||||
|
|
||||
LL | use crate::foo::Bar;
|
||||
| --------------- the item `Bar` is already imported here
|
||||
...
|
||||
LL | use crate::foo::Bar;
|
||||
| ^^^^^^^^^^^^^^^
|
||||
|
||||
warning: 3 warnings emitted
|
||||
warning: 2 warnings emitted
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue