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https://github.com/rust-lang/rust
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b4a424feb8
Noticed these while doing something else. There's no practical change, but it's preferable to use `DUMMY_SP` as little as possible, particularly when we have perfectlly useful `Span`s available.
51 lines
1.3 KiB
Rust
51 lines
1.3 KiB
Rust
// This should not pass, because `usize: Fsm` does not hold. However, it currently ICEs.
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// ignore-tidy-linelength
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//@ revisions: compat no-compat
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//@[compat] check-pass
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//@[no-compat] compile-flags: -Zno-implied-bounds-compat
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//@[no-compat] check-fail
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//@[no-compat] known-bug: #80409
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//@[no-compat] failure-status: 101
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//@[no-compat] normalize-stderr-test "delayed at.*" -> ""
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//@[no-compat] normalize-stderr-test "note: .*\n\n" -> ""
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//@[no-compat] normalize-stderr-test "thread 'rustc' panicked.*\n" -> ""
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//@[no-compat] normalize-stderr-test "(error: internal compiler error: [^:]+):\d+:\d+: " -> "$1:LL:CC: "
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//@[no-compat] rustc-env:RUST_BACKTRACE=0
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#![allow(unreachable_code, unused)]
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use std::marker::PhantomData;
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struct FsmBuilder<TFsm> {
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_fsm: PhantomData<TFsm>,
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}
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impl<TFsm> FsmBuilder<TFsm> {
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fn state(&mut self) -> FsmStateBuilder<TFsm> {
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todo!()
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}
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}
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struct FsmStateBuilder<TFsm> {
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_state: PhantomData<TFsm>,
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}
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impl<TFsm> FsmStateBuilder<TFsm> {
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fn on_entry<TAction: Fn(&mut StateContext<'_, TFsm>)>(&self, _action: TAction) {}
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}
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trait Fsm {
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type Context;
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}
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struct StateContext<'a, TFsm: Fsm> {
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context: &'a mut TFsm::Context,
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}
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fn main() {
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let mut builder: FsmBuilder<usize> = todo!();
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builder.state().on_entry(|_| {});
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}
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