Merging upstream version 1.70.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

9 files changed, 177 insertions, 0 deletions

diff --git a/tests/ui/lint/use-redundant/issue-92904.rs b/tests/ui/lint/use-redundant/issue-92904.rs
new file mode 100644
index 000000000..511d9d263
--- /dev/null
+++ b/tests/ui/lint/use-redundant/issue-92904.rs
@@ -0,0 +1,17 @@
+// check-pass
+
+pub struct Foo(bar::Bar);
+
+pub mod bar {
+    pub struct Foo(pub Bar);
+    pub struct Bar(pub char);
+}
+
+pub fn warning() -> Foo {
+    use bar::*;
+    #[deny(unused_imports)]
+    use self::Foo; // no error
+    Foo(Bar('a'))
+}
+
+fn main() {}
diff --git a/tests/ui/lint/use-redundant/use-redundant-glob-parent.rs b/tests/ui/lint/use-redundant/use-redundant-glob-parent.rs
new file mode 100644
index 000000000..6b1e018d2
--- /dev/null
+++ b/tests/ui/lint/use-redundant/use-redundant-glob-parent.rs
@@ -0,0 +1,16 @@
+// check-pass
+#![warn(unused_imports)]
+
+pub mod bar {
+    pub struct Foo(pub Bar);
+    pub struct Bar(pub char);
+}
+
+use bar::*;
+
+pub fn warning() -> Foo {
+    use bar::Foo; //~ WARNING imported redundantly
+    Foo(Bar('a'))
+}
+
+fn main() {}
diff --git a/tests/ui/lint/use-redundant/use-redundant-glob-parent.stderr b/tests/ui/lint/use-redundant/use-redundant-glob-parent.stderr
new file mode 100644
index 000000000..2c3b33452
--- /dev/null
+++ b/tests/ui/lint/use-redundant/use-redundant-glob-parent.stderr
@@ -0,0 +1,17 @@
+warning: the item `Foo` is imported redundantly
+  --> $DIR/use-redundant-glob-parent.rs:12:9
+   |
+LL | use bar::*;
+   |     ------ the item `Foo` is already imported here
+...
+LL |     use bar::Foo;
+   |         ^^^^^^^^
+   |
+note: the lint level is defined here
+  --> $DIR/use-redundant-glob-parent.rs:2:9
+   |
+LL | #![warn(unused_imports)]
+   |         ^^^^^^^^^^^^^^
+
+warning: 1 warning emitted
+
diff --git a/tests/ui/lint/use-redundant/use-redundant-glob.rs b/tests/ui/lint/use-redundant/use-redundant-glob.rs
new file mode 100644
index 000000000..bd9e51b6f
--- /dev/null
+++ b/tests/ui/lint/use-redundant/use-redundant-glob.rs
@@ -0,0 +1,15 @@
+// check-pass
+#![warn(unused_imports)]
+
+pub mod bar {
+    pub struct Foo(pub Bar);
+    pub struct Bar(pub char);
+}
+
+pub fn warning() -> bar::Foo {
+    use bar::*;
+    use bar::Foo; //~ WARNING imported redundantly
+    Foo(Bar('a'))
+}
+
+fn main() {}
diff --git a/tests/ui/lint/use-redundant/use-redundant-glob.stderr b/tests/ui/lint/use-redundant/use-redundant-glob.stderr
new file mode 100644
index 000000000..d3b406d82
--- /dev/null
+++ b/tests/ui/lint/use-redundant/use-redundant-glob.stderr
@@ -0,0 +1,16 @@
+warning: the item `Foo` is imported redundantly
+  --> $DIR/use-redundant-glob.rs:11:9
+   |
+LL |     use bar::*;
+   |         ------ the item `Foo` is already imported here
+LL |     use bar::Foo;
+   |         ^^^^^^^^
+   |
+note: the lint level is defined here
+  --> $DIR/use-redundant-glob.rs:2:9
+   |
+LL | #![warn(unused_imports)]
+   |         ^^^^^^^^^^^^^^
+
+warning: 1 warning emitted
+
diff --git a/tests/ui/lint/use-redundant/use-redundant-multiple-namespaces.rs b/tests/ui/lint/use-redundant/use-redundant-multiple-namespaces.rs
new file mode 100644
index 000000000..0fb60840f
--- /dev/null
+++ b/tests/ui/lint/use-redundant/use-redundant-multiple-namespaces.rs
@@ -0,0 +1,21 @@
+// check-pass
+#![allow(nonstandard_style)]
+
+pub mod bar {
+    pub struct Foo { pub bar: Bar }
+    pub struct Bar(pub char);
+}
+
+pub mod x {
+    use crate::bar;
+    pub const Foo: bar::Bar = bar::Bar('a');
+}
+
+pub fn warning() -> bar::Foo {
+    #![deny(unused_imports)] // no error
+    use bar::*;
+    use x::Foo;
+    Foo { bar: Foo }
+}
+
+fn main() {}
diff --git a/tests/ui/lint/use-redundant/use-redundant-not-parent.rs b/tests/ui/lint/use-redundant/use-redundant-not-parent.rs
new file mode 100644
index 000000000..c97a3d341
--- /dev/null
+++ b/tests/ui/lint/use-redundant/use-redundant-not-parent.rs
@@ -0,0 +1,19 @@
+// check-pass
+
+pub mod bar {
+    pub struct Foo(pub Bar);
+    pub struct Bar(pub char);
+}
+
+pub mod x {
+    pub struct Foo(pub crate::bar::Bar);
+}
+
+pub fn warning() -> x::Foo {
+    use bar::*;
+    #[deny(unused_imports)]
+    use x::Foo; // no error
+    Foo(Bar('a'))
+}
+
+fn main() {}
diff --git a/tests/ui/lint/use-redundant/use-redundant.rs b/tests/ui/lint/use-redundant/use-redundant.rs
new file mode 100644
index 000000000..53315dcf6
--- /dev/null
+++ b/tests/ui/lint/use-redundant/use-redundant.rs
@@ -0,0 +1,27 @@
+// check-pass
+#![warn(unused_imports)]
+
+use crate::foo::Bar;
+
+mod foo {
+    pub type Bar = i32;
+}
+
+fn baz() -> Bar {
+    3
+}
+
+mod m1 { pub struct S {} }
+mod m2 { pub struct S {} }
+
+use m1::*; //~ WARNING unused import
+use m2::*; //~ WARNING unused import
+
+fn main() {
+    use crate::foo::Bar; //~ WARNING imported redundantly
+    let _a: Bar = 3;
+    baz();
+
+    use m1::S;
+    let _s = S {};
+}
diff --git a/tests/ui/lint/use-redundant/use-redundant.stderr b/tests/ui/lint/use-redundant/use-redundant.stderr
new file mode 100644
index 000000000..c861a1956
--- /dev/null
+++ b/tests/ui/lint/use-redundant/use-redundant.stderr
@@ -0,0 +1,29 @@
+warning: unused import: `m1::*`
+  --> $DIR/use-redundant.rs:17:5
+   |
+LL | use m1::*;
+   |     ^^^^^
+   |
+note: the lint level is defined here
+  --> $DIR/use-redundant.rs:2:9
+   |
+LL | #![warn(unused_imports)]
+   |         ^^^^^^^^^^^^^^
+
+warning: unused import: `m2::*`
+  --> $DIR/use-redundant.rs:18:5
+   |
+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
+