mirror of https://github.com/rust-lang/rust
33 lines
579 B
Rust
33 lines
579 B
Rust
use std::ops::{Deref, DerefMut};
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struct DerefTarget {
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target_field: bool,
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}
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struct Container {
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target: DerefTarget,
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container_field: bool,
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}
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impl Deref for Container {
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type Target = DerefTarget;
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fn deref(&self) -> &Self::Target {
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&self.target
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}
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}
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impl DerefMut for Container {
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fn deref_mut(&mut self) -> &mut Self::Target {
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&mut self.target
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}
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}
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impl Container {
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fn bad_borrow(&mut self) {
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let first = &mut self.target_field;
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self.container_field = true; //~ ERROR E0506
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first;
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}
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}
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fn main() {}
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