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29 lines
1020 B
Rust
29 lines
1020 B
Rust
#![feature(coroutines, stmt_expr_attributes)]
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// `foo` attempts to dereference `""`, which results in an error being reported. Later, the
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// coroutine transform for `foo` then produces a union which contains a `str` type - unions should
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// not contain unsized types, but this is okay because an error has been reported already.
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// When const propagation happens later in compilation, it attempts to compute the layout of the
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// coroutine (as part of checking whether something can be const propagated) and in turn attempts
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// to compute the layout of `str` in the context of a union - where this caused an ICE. This test
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// makes sure that doesn't happen again.
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fn foo() {
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let _y = #[coroutine]
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static || {
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let x = &mut 0;
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*{
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yield;
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x
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} += match { *"" }.len() {
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//~^ ERROR cannot move a value of type `str` [E0161]
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//~^^ ERROR cannot move out of a shared reference [E0507]
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_ => 0,
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};
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};
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}
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fn main() {
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foo()
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}
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