bjoernager/rust
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be even more precise about "cast" vs "coercion"

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This commit is contained in:
Lukas Markeffsky 2024-09-15 19:35:06 +02:00
parent 5e60d1f87e
commit bd31e3ed70
90 changed files with 291 additions and 233 deletions
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13
compiler/rustc_middle/src/mir/syntax.rs
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@ -579,7 +579,7 @@ pub struct CopyNonOverlapping<'tcx> {
pub count: Operand<'tcx>,
}
/// Represents how a `TerminatorKind::Call` was constructed, used for diagnostics
/// Represents how a [`TerminatorKind::Call`] was constructed, used for diagnostics.
#[derive(Clone, Copy, TyEncodable, TyDecodable, Debug, PartialEq, Hash, HashStable)]
#[derive(TypeFoldable, TypeVisitable)]
pub enum CallSource {
@ -1403,7 +1403,7 @@ pub enum CastKind {
/// * [`PointerCoercion::MutToConstPointer`]
///
/// Both are runtime nops, so should be [`CastKind::PtrToPtr`] instead in runtime MIR.
PointerCoercion(PointerCoercion),
PointerCoercion(PointerCoercion, CoercionSource),
IntToInt,
FloatToInt,
FloatToFloat,
@ -1419,6 +1419,15 @@ pub enum CastKind {
Transmute,
}
/// Represents how a [`CastKind::PointerCoercion`] was constructed, used for diagnostics.
#[derive(Clone, Copy, Debug, PartialEq, Eq, TyEncodable, TyDecodable, Hash, HashStable)]
pub enum CoercionSource {
/// The coercion was manually written by the user with an `as` cast.
AsCast,
/// The coercion was automatically inserted by the compiler.
Implicit,
}
#[derive(Clone, Debug, PartialEq, Eq, TyEncodable, TyDecodable, Hash, HashStable)]
#[derive(TypeFoldable, TypeVisitable)]
pub enum AggregateKind<'tcx> {