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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /src/tools/clippy/tests/ui/cast_lossless_bool.fixed
parentInitial commit. (diff)
downloadrustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz
rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/tools/clippy/tests/ui/cast_lossless_bool.fixed')
-rw-r--r--src/tools/clippy/tests/ui/cast_lossless_bool.fixed42
1 files changed, 42 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/cast_lossless_bool.fixed b/src/tools/clippy/tests/ui/cast_lossless_bool.fixed
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+++ b/src/tools/clippy/tests/ui/cast_lossless_bool.fixed
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+// run-rustfix
+
+#![allow(dead_code)]
+#![warn(clippy::cast_lossless)]
+
+fn main() {
+ // Test clippy::cast_lossless with casts to integer types
+ let _ = u8::from(true);
+ let _ = u16::from(true);
+ let _ = u32::from(true);
+ let _ = u64::from(true);
+ let _ = u128::from(true);
+ let _ = usize::from(true);
+
+ let _ = i8::from(true);
+ let _ = i16::from(true);
+ let _ = i32::from(true);
+ let _ = i64::from(true);
+ let _ = i128::from(true);
+ let _ = isize::from(true);
+
+ // Test with an expression wrapped in parens
+ let _ = u16::from(true | false);
+}
+
+// The lint would suggest using `u32::from(input)` here but the `XX::from` function is not const,
+// so we skip the lint if the expression is in a const fn.
+// See #3656
+const fn abc(input: bool) -> u32 {
+ input as u32
+}
+
+// Same as the above issue. We can't suggest `::from` in const fns in impls
+mod cast_lossless_in_impl {
+ struct A;
+
+ impl A {
+ pub const fn convert(x: bool) -> u64 {
+ x as u64
+ }
+ }
+}