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-rw-r--r--src/test/ui/methods/method-mut-self-modifies-mut-slice-lvalue.rs44
1 files changed, 0 insertions, 44 deletions
diff --git a/src/test/ui/methods/method-mut-self-modifies-mut-slice-lvalue.rs b/src/test/ui/methods/method-mut-self-modifies-mut-slice-lvalue.rs
deleted file mode 100644
index daff037b2..000000000
--- a/src/test/ui/methods/method-mut-self-modifies-mut-slice-lvalue.rs
+++ /dev/null
@@ -1,44 +0,0 @@
-// run-pass
-// Test that an `&mut self` method, when invoked on a place whose
-// type is `&mut [u8]`, passes in a pointer to the place and not a
-// temporary. Issue #19147.
-
-use std::slice;
-use std::cmp;
-
-trait MyWriter {
- fn my_write(&mut self, buf: &[u8]) -> Result<(), ()>;
-}
-
-impl<'a> MyWriter for &'a mut [u8] {
- fn my_write(&mut self, buf: &[u8]) -> Result<(), ()> {
- let amt = cmp::min(self.len(), buf.len());
- self[..amt].clone_from_slice(&buf[..amt]);
-
- let write_len = buf.len();
- unsafe {
- *self = slice::from_raw_parts_mut(
- self.as_mut_ptr().add(write_len),
- self.len() - write_len
- );
- }
-
- Ok(())
- }
-}
-
-fn main() {
- let mut buf = [0; 6];
-
- {
- let mut writer: &mut [_] = &mut buf;
- writer.my_write(&[0, 1, 2]).unwrap();
- writer.my_write(&[3, 4, 5]).unwrap();
- }
-
- // If `my_write` is not modifying `buf` in place, then we will
- // wind up with `[3, 4, 5, 0, 0, 0]` because the first call to
- // `my_write()` doesn't update the starting point for the write.
-
- assert_eq!(buf, [0, 1, 2, 3, 4, 5]);
-}