bjoernager/rust
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Deduplicate fn trait compatibility checks

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This commit is contained in:
Oli Scherer 2023-03-21 11:38:13 +00:00
parent fb9e171ab7
commit 91d913168c
3 changed files with 21 additions and 29 deletions
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14
compiler/rustc_middle/src/ty/sty.rs
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@ -23,7 +23,7 @@ use rustc_macros::HashStable;
use rustc_span::symbol::{kw, sym, Symbol};
use rustc_span::Span;
use rustc_target::abi::VariantIdx;
use rustc_target::spec::abi;
use rustc_target::spec::abi::{self, Abi};
use std::borrow::Cow;
use std::cmp::Ordering;
use std::fmt;
@ -1403,6 +1403,18 @@ impl<'tcx> PolyFnSig<'tcx> {
pub fn abi(&self) -> abi::Abi {
self.skip_binder().abi
}
pub fn is_fn_trait_compatible(&self) -> bool {
matches!(
self.skip_binder(),
ty::FnSig {
unsafety: rustc_hir::Unsafety::Normal,
abi: Abi::Rust,
c_variadic: false,
..
}
)
}
}
pub type CanonicalPolyFnSig<'tcx> = Canonical<'tcx, Binder<'tcx, FnSig<'tcx>>>;