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hub / github.com/bytecodealliance/rustix / error_buffer_wrapper

Function error_buffer_wrapper

examples/buffer_errors.rs:15–37  ·  view source on GitHub ↗
()

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13}
14
15fn error_buffer_wrapper() {
16 use rustix::buffer::Buffer;
17
18 fn read<B: Buffer<u8>>(_: B) {}
19
20 // This is reduced from src/fs/inotify.rs line 177.
21 struct Wrapper<'a>(&'a mut [u8]);
22 impl<'a> Wrapper<'a> {
23 fn read(&mut self) {
24 // Ideally we'd write this, but it gets:
25 // "cannot move out of `self` which is behind a mutable reference".
26 /*
27 read(self.0);
28 */
29
30 // The fix: add `&mut *`.
31 read(&mut *self.0);
32 }
33 }
34 let mut buf = vec![0_u8; 3];
35 let mut wrapper = Wrapper(&mut buf);
36 wrapper.read();
37}
38
39fn error_retry_closure() {
40 use rustix::buffer::Buffer;

Callers 1

mainFunction · 0.85

Calls 2

WrapperClass · 0.85
readMethod · 0.45

Tested by

no test coverage detected