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03c88aaf21
When going through auto-deref, the `<T as Clone>` impl sometimes needs
to be specified for rustc to actually clone the value and not the
reference.
```
error[E0507]: cannot move out of dereference of `S`
--> $DIR/needs-clone-through-deref.rs:15:18
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LL | for _ in self.clone().into_iter() {}
| ^^^^^^^^^^^^ ----------- value moved due to this method call
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| move occurs because value has type `Vec<usize>`, which does not implement the `Copy` trait
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note: `into_iter` takes ownership of the receiver `self`, which moves value
--> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL
help: you can `clone` the value and consume it, but this might not be your desired behavior
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LL | for _ in <Vec<usize> as Clone>::clone(&self.clone()).into_iter() {}
| ++++++++++++++++++++++++++++++ +
```
CC #109429.
19 lines
434 B
Rust
19 lines
434 B
Rust
// run-rustfix
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#![allow(dead_code, noop_method_call)]
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use std::ops::Deref;
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struct S(Vec<usize>);
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impl Deref for S {
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type Target = Vec<usize>;
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fn deref(&self) -> &Self::Target {
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&self.0
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}
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}
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impl S {
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fn foo(&self) {
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// `self.clone()` returns `&S`, not `Vec`
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for _ in <Vec<usize> as Clone>::clone(&self.clone()).into_iter() {} //~ ERROR cannot move out of dereference of `S`
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}
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}
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fn main() {}
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