From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:02:58 +0200
Subject: Adding upstream version 1.64.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/tools/clippy/tests/ui/no_effect.rs | 143 +++++++++++++++++++++++++++++++++
 1 file changed, 143 insertions(+)
 create mode 100644 src/tools/clippy/tests/ui/no_effect.rs

(limited to 'src/tools/clippy/tests/ui/no_effect.rs')

diff --git a/src/tools/clippy/tests/ui/no_effect.rs b/src/tools/clippy/tests/ui/no_effect.rs
new file mode 100644
index 000000000..fdefb11ae
--- /dev/null
+++ b/src/tools/clippy/tests/ui/no_effect.rs
@@ -0,0 +1,143 @@
+#![feature(box_syntax, fn_traits, unboxed_closures)]
+#![warn(clippy::no_effect_underscore_binding)]
+#![allow(dead_code)]
+#![allow(path_statements)]
+#![allow(clippy::deref_addrof)]
+#![allow(clippy::redundant_field_names)]
+
+struct Unit;
+struct Tuple(i32);
+struct Struct {
+    field: i32,
+}
+enum Enum {
+    Tuple(i32),
+    Struct { field: i32 },
+}
+struct DropUnit;
+impl Drop for DropUnit {
+    fn drop(&mut self) {}
+}
+struct DropStruct {
+    field: i32,
+}
+impl Drop for DropStruct {
+    fn drop(&mut self) {}
+}
+struct DropTuple(i32);
+impl Drop for DropTuple {
+    fn drop(&mut self) {}
+}
+enum DropEnum {
+    Tuple(i32),
+    Struct { field: i32 },
+}
+impl Drop for DropEnum {
+    fn drop(&mut self) {}
+}
+struct FooString {
+    s: String,
+}
+union Union {
+    a: u8,
+    b: f64,
+}
+
+fn get_number() -> i32 {
+    0
+}
+fn get_struct() -> Struct {
+    Struct { field: 0 }
+}
+fn get_drop_struct() -> DropStruct {
+    DropStruct { field: 0 }
+}
+
+unsafe fn unsafe_fn() -> i32 {
+    0
+}
+
+struct GreetStruct1;
+
+impl FnOnce<(&str,)> for GreetStruct1 {
+    type Output = ();
+
+    extern "rust-call" fn call_once(self, (who,): (&str,)) -> Self::Output {
+        println!("hello {}", who);
+    }
+}
+
+struct GreetStruct2();
+
+impl FnOnce<(&str,)> for GreetStruct2 {
+    type Output = ();
+
+    extern "rust-call" fn call_once(self, (who,): (&str,)) -> Self::Output {
+        println!("hello {}", who);
+    }
+}
+
+struct GreetStruct3;
+
+impl FnOnce<(&str,)> for GreetStruct3 {
+    type Output = ();
+
+    extern "rust-call" fn call_once(self, (who,): (&str,)) -> Self::Output {
+        println!("hello {}", who);
+    }
+}
+
+fn main() {
+    let s = get_struct();
+    let s2 = get_struct();
+
+    0;
+    s2;
+    Unit;
+    Tuple(0);
+    Struct { field: 0 };
+    Struct { ..s };
+    Union { a: 0 };
+    Enum::Tuple(0);
+    Enum::Struct { field: 0 };
+    5 + 6;
+    *&42;
+    &6;
+    (5, 6, 7);
+    box 42;
+    ..;
+    5..;
+    ..5;
+    5..6;
+    5..=6;
+    [42, 55];
+    [42, 55][1];
+    (42, 55).1;
+    [42; 55];
+    [42; 55][13];
+    let mut x = 0;
+    || x += 5;
+    let s: String = "foo".into();
+    FooString { s: s };
+    let _unused = 1;
+    let _penguin = || println!("Some helpful closure");
+    let _duck = Struct { field: 0 };
+    let _cat = [2, 4, 6, 8][2];
+
+    #[allow(clippy::no_effect)]
+    0;
+
+    // Do not warn
+    get_number();
+    unsafe { unsafe_fn() };
+    let _used = get_struct();
+    let _x = vec![1];
+    DropUnit;
+    DropStruct { field: 0 };
+    DropTuple(0);
+    DropEnum::Tuple(0);
+    DropEnum::Struct { field: 0 };
+    GreetStruct1("world");
+    GreetStruct2()("world");
+    GreetStruct3 {}("world");
+}
-- 
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