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Add more than no docs to CppCast. #393

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10 changes: 8 additions & 2 deletions support/forward_declare.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -584,8 +584,14 @@ mod mut_ref_transmutability {
}
}

/// Like `Into<T>`, but for completeness conversions.
/// Converts from `Self` to `T`, where `Self` *is* `T` in C++.
///
/// For example, if two different C++ headers forward declare the same type, then
/// these declarations will become distinct types in Rust, but can be `CppCast` to
/// one another, and can both be `CppCast` to (and from) the complete type in the
/// header that defines the type.
pub trait CppCast<T> {
/// Converts `self` to a `T`.
fn cpp_cast(self) -> T;
}

Expand Down Expand Up @@ -627,7 +633,7 @@ where
Self: 'a,
T: 'a + Sized,
{
/// Cast between types.
/// Converts `self` to a `T`.
///
/// # Safety
///
Expand Down