bjoernager/rust
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Swap PredicateObligation to ThinVec

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This commit is contained in:
GnomedDev 2024-10-10 19:56:21 +01:00
parent 7ec06b0d1d
commit 8de8f46f78
12 changed files with 73 additions and 42 deletions
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9
compiler/rustc_middle/src/traits/mod.rs
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@ -25,6 +25,7 @@ use rustc_span::{DUMMY_SP, Span};
// FIXME: Remove this import and import via `solve::`
pub use rustc_type_ir::solve::{BuiltinImplSource, Reveal};
use smallvec::{SmallVec, smallvec};
use thin_vec::ThinVec;
pub use self::select::{EvaluationCache, EvaluationResult, OverflowError, SelectionCache};
use crate::mir::ConstraintCategory;
@ -625,14 +626,14 @@ pub enum ImplSource<'tcx, N> {
/// for some type parameter. The `Vec<N>` represents the
/// obligations incurred from normalizing the where-clause (if
/// any).
Param(Vec<N>),
Param(ThinVec<N>),
/// Successful resolution for a builtin impl.
Builtin(BuiltinImplSource, Vec<N>),
Builtin(BuiltinImplSource, ThinVec<N>),
}
impl<'tcx, N> ImplSource<'tcx, N> {
pub fn nested_obligations(self) -> Vec<N> {
pub fn nested_obligations(self) -> ThinVec<N> {
match self {
ImplSource::UserDefined(i) => i.nested,
ImplSource::Param(n) | ImplSource::Builtin(_, n) => n,
@ -686,7 +687,7 @@ impl<'tcx, N> ImplSource<'tcx, N> {
pub struct ImplSourceUserDefinedData<'tcx, N> {
pub impl_def_id: DefId,
pub args: GenericArgsRef<'tcx>,
pub nested: Vec<N>,
pub nested: ThinVec<N>,
}
#[derive(Clone, Debug, PartialEq, Eq, Hash, HashStable, PartialOrd, Ord)]