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Rollup merge of #131942 - workingjubilee:reduce-haruspicy, r=lukas-code,lnicola

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compiler: Adopt rust-analyzer impls for `LayoutCalculatorError`

We're about to massively churn the internals of `rustc_abi`. To minimize the immediate and future impact on rust-analyzer, as a subtree that depends on this crate, grow some API on `LayoutCalculatorError` that reflects their uses of it. This way we can nest the type in theirs, and they can just call functions on it without having to inspect and flatten-out its innards.
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Stuart Cook 2024-10-20 14:06:04 +11:00 committed by GitHub
commit d6350f60f7
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1 changed files with 4 additions and 5 deletions
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9
crates/hir-ty/src/layout.rs
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@ -72,6 +72,8 @@ pub type Variants = hir_def::layout::Variants<RustcFieldIdx, RustcEnumVariantIdx
#[derive(Debug, PartialEq, Eq, Clone)]
pub enum LayoutError {
// FIXME: Remove variants that duplicate LayoutCalculatorError's variants after sync
BadCalc(LayoutCalculatorError<()>),
EmptyUnion,
HasErrorConst,
HasErrorType,
@ -90,6 +92,7 @@ impl std::error::Error for LayoutError {}
impl fmt::Display for LayoutError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
LayoutError::BadCalc(err) => err.fallback_fmt(f),
LayoutError::EmptyUnion => write!(f, "type is an union with no fields"),
LayoutError::HasErrorConst => write!(f, "type contains an unevaluatable const"),
LayoutError::HasErrorType => write!(f, "type contains an error"),
@ -114,11 +117,7 @@ impl fmt::Display for LayoutError {
impl<F> From<LayoutCalculatorError<F>> for LayoutError {
fn from(err: LayoutCalculatorError<F>) -> Self {
match err {
LayoutCalculatorError::EmptyUnion => LayoutError::EmptyUnion,
LayoutCalculatorError::UnexpectedUnsized(_) => LayoutError::UnexpectedUnsized,
LayoutCalculatorError::SizeOverflow => LayoutError::SizeOverflow,
}
LayoutError::BadCalc(err.without_payload())
}
}