mirror of
https://github.com/PowerShell/PowerShell
synced 2026-06-08 12:12:50 +00:00
Dongbo Wang
720e842c86
Support calling methods with ByRef-like type parameters in PowerShell, as long as the argument specified for the parameter can be implicitly/explicitly converted to the ByRef-like type. We cannot create an instance of a ByRef-like type in PowerShell, but there are types that can be implicitly or explicitly converted to ByRef-like types, such as `T[] -> Span<T>`, `T[] -> ReadOnlySpan<T>`, `String -> ReadOnlySpan<T>`. `ArraySegment<T> -> Span<T>`, `ArraySegment<T> -> ReadOnlySpan<T>`. With changes in this PR, we can call methods with ByRef-like parameter types by providing the arguments of the types that can be cast to the target ByRef-like type. **What is enabled?** 1. Invoking methods that have ByRef-like parameters, but the return type is not ByRef-like. 2. Invoking constructors with ByRef-like parameters via `[target-type]::new` syntax, but the `target-type` is not ByRef-like. 3. Accessing indexers that have ByRef-like parameters, but the return type is not ByRef-like.
Testing
The tests are organized by testing language. Thus Pester tests, which are written in the PowerShell language, are in ./powershell and xUnit tests, written in C#, are in ./csharp. The sanity tests for the Full .NET build of PowerShell are in ./fullclr, and the third-party shebang test is in ./shebang.