mirror of https://github.com/rust-lang/rust
39 lines
631 B
Rust
39 lines
631 B
Rust
use std::ops::Deref;
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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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struct Outer {
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container: Container,
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outer_field: bool,
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}
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impl Deref for Outer {
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type Target = Container;
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fn deref(&self) -> &Self::Target {
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&self.container
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}
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}
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impl Outer {
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fn bad_borrow(&mut self) {
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let first = &self.target_field;
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self.outer_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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