rust-lang/rust
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

Remove some unnecessary derives.

Browse Source 
I was curious about how many `Encodable`/`Decodable` derives we have.
Some grepping revealed that it's over 500 of each, but the number of
`Encodable` ones was higher, which was weird. Most of the
`Encodable`-only ones were in `hir.rs`. This commit removes them all,
plus some other unnecessary derives in that file and others that I found
via trial and error.
This commit is contained in:
Nicholas Nethercote
2023-04-28 11:38:59 +10:00
parent a676dfa888
commit 23e91d4d73
4 changed files with 48 additions and 52 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
compiler/rustc_middle/src/traits/mod.rs
View File

@@ -199,7 +199,7 @@ impl<'tcx> ObligationCause<'tcx> {
}
}
#[derive(Clone, Debug, PartialEq, Eq, Hash, Lift, HashStable, TyEncodable, TyDecodable)]
#[derive(Clone, Debug, PartialEq, Eq, Lift, HashStable, TyEncodable, TyDecodable)]
#[derive(TypeVisitable, TypeFoldable)]
pub struct UnifyReceiverContext<'tcx> {
pub assoc_item: ty::AssocItem,
@@ -207,7 +207,7 @@ pub struct UnifyReceiverContext<'tcx> {
pub substs: SubstsRef<'tcx>,
}
#[derive(Clone, PartialEq, Eq, Hash, Lift, Default, HashStable)]
#[derive(Clone, PartialEq, Eq, Lift, Default, HashStable)]
#[derive(TypeVisitable, TypeFoldable, TyEncodable, TyDecodable)]
pub struct InternedObligationCauseCode<'tcx> {
/// `None` for `ObligationCauseCode::MiscObligation` (a common case, occurs ~60% of
@@ -243,7 +243,7 @@ impl<'tcx> std::ops::Deref for InternedObligationCauseCode<'tcx> {
}
}
#[derive(Clone, Debug, PartialEq, Eq, Hash, Lift, HashStable, TyEncodable, TyDecodable)]
#[derive(Clone, Debug, PartialEq, Eq, Lift, HashStable, TyEncodable, TyDecodable)]
#[derive(TypeVisitable, TypeFoldable)]
pub enum ObligationCauseCode<'tcx> {
/// Not well classified or should be obvious from the span.
@@ -468,7 +468,7 @@ pub enum WellFormedLoc {
},
}
#[derive(Clone, Debug, PartialEq, Eq, Hash, Lift, HashStable, TyEncodable, TyDecodable)]
#[derive(Clone, Debug, PartialEq, Eq, Lift, HashStable, TyEncodable, TyDecodable)]
#[derive(TypeVisitable, TypeFoldable)]
pub struct ImplDerivedObligationCause<'tcx> {
pub derived: DerivedObligationCause<'tcx>,
@@ -529,7 +529,7 @@ impl<'tcx> ty::Lift<'tcx> for StatementAsExpression {
}
}
#[derive(Clone, Debug, PartialEq, Eq, Hash, Lift, HashStable, TyEncodable, TyDecodable)]
#[derive(Clone, Debug, PartialEq, Eq, Lift, HashStable, TyEncodable, TyDecodable)]
#[derive(TypeVisitable, TypeFoldable)]
pub struct MatchExpressionArmCause<'tcx> {
pub arm_block_id: Option<hir::HirId>,
@@ -545,7 +545,7 @@ pub struct MatchExpressionArmCause<'tcx> {
pub opt_suggest_box_span: Option<Span>,
}
#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
#[derive(Copy, Clone, Debug, PartialEq, Eq)]
#[derive(Lift, TypeFoldable, TypeVisitable, HashStable, TyEncodable, TyDecodable)]
pub struct IfExpressionCause<'tcx> {
pub then_id: hir::HirId,
@@ -556,7 +556,7 @@ pub struct IfExpressionCause<'tcx> {
pub opt_suggest_box_span: Option<Span>,
}
#[derive(Clone, Debug, PartialEq, Eq, Hash, Lift, HashStable, TyEncodable, TyDecodable)]
#[derive(Clone, Debug, PartialEq, Eq, Lift, HashStable, TyEncodable, TyDecodable)]
#[derive(TypeVisitable, TypeFoldable)]
pub struct DerivedObligationCause<'tcx> {
/// The trait predicate of the parent obligation that led to the