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authorMatthias Krüger <476013+matthiaskrgr@users.noreply.github.com>2025-06-14 11:27:10 +0200
committerGitHub <noreply@github.com>2025-06-14 11:27:10 +0200
commitdb23a76217490844d404ba5931798df74fd0268e (patch)
tree651d1d9e14861a325fc8a652828d7092336cf7ad /compiler/rustc_codegen_cranelift/example
parent8f90d0565792f722249742bc6963b782785a5e3c (diff)
parentc0e02e26b39913ec1ee31621c65784542b137310 (diff)
Rollup merge of #141811 - mejrs:bye_locals, r=compiler-errors
Unimplement unsized_locals

Implements https://github.com/rust-lang/compiler-team/issues/630

Tracking issue here: https://github.com/rust-lang/rust/issues/111942

Note that this just removes the feature, not the implementation, and does not touch `unsized_fn_params`. This is because it is required to support `Box<dyn FnOnce()>: FnOnce()`.

There may be more that should be removed (possibly in follow up prs)
- the `forget_unsized` function and `forget` intrinsic.
- the `unsized_locals` test directory; I've just fixed up the tests for now
- various codegen support for unsized values and allocas

cc ``@JakobDegen`` ``@oli-obk`` ``@Noratrieb`` ``@programmerjake`` ``@bjorn3``

``@rustbot`` label F-unsized_locals

Fixes rust-lang/rust#79409
Diffstat (limited to 'compiler/rustc_codegen_cranelift/example')
-rw-r--r--compiler/rustc_codegen_cranelift/example/arbitrary_self_types_pointers_and_wrappers.rs4
1 files changed, 0 insertions, 4 deletions
diff --git a/compiler/rustc_codegen_cranelift/example/arbitrary_self_types_pointers_and_wrappers.rs b/compiler/rustc_codegen_cranelift/example/arbitrary_self_types_pointers_and_wrappers.rs
index 5479b0c617b..f0d1f6e2215 100644
--- a/compiler/rustc_codegen_cranelift/example/arbitrary_self_types_pointers_and_wrappers.rs
+++ b/compiler/rustc_codegen_cranelift/example/arbitrary_self_types_pointers_and_wrappers.rs
@@ -32,10 +32,6 @@ impl<T: CoerceUnsized<U>, U> CoerceUnsized<Wrapper<U>> for Wrapper<T> {}
 impl<T: DispatchFromDyn<U>, U> DispatchFromDyn<Wrapper<U>> for Wrapper<T> {}
 
 trait Trait {
-    // This method isn't object-safe yet. Unsized by-value `self` is object-safe (but not callable
-    // without unsized_locals), but wrappers around `Self` currently are not.
-    // FIXME (mikeyhew) uncomment this when unsized rvalues object-safety is implemented
-    // fn wrapper(self: Wrapper<Self>) -> i32;
     fn ptr_wrapper(self: Ptr<Wrapper<Self>>) -> i32;
     fn wrapper_ptr(self: Wrapper<Ptr<Self>>) -> i32;
     fn wrapper_ptr_wrapper(self: Wrapper<Ptr<Wrapper<Self>>>) -> i32;