mirror of https://github.com/rust-lang/rust
33 lines
927 B
Rust
33 lines
927 B
Rust
// Ensure that a `#[track_caller]` function, returning `caller_location()`,
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// which coerced (to a function pointer) and called, inside a `const fn`,
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// in turn called, results in the same output irrespective of whether
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// we're in a const or runtime context.
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//@ run-pass
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//@ compile-flags: -Z unleash-the-miri-inside-of-you
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#![feature(core_intrinsics)]
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type L = &'static std::panic::Location<'static>;
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#[track_caller]
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const fn attributed() -> L {
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std::intrinsics::caller_location()
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}
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const fn calling_attributed() -> L {
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// We need `-Z unleash-the-miri-inside-of-you` for this as we don't have `const fn` pointers.
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let ptr: fn() -> L = attributed;
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ptr()
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}
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fn main() {
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const CONSTANT: L = calling_attributed();
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let runtime = calling_attributed();
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assert_eq!(
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(runtime.file(), runtime.line(), runtime.column()),
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(CONSTANT.file(), CONSTANT.line(), CONSTANT.column()),
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);
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}
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