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use crate::attrs::AttributeKind;
#[derive(PartialEq)]
pub enum EncodeCrossCrate {
Yes,
No,
}
impl AttributeKind {
/// Whether this attribute should be encoded in metadata files.
///
/// If this is "Yes", then another crate can do `tcx.get_all_attrs(did)` for a did in this crate, and get the attribute.
/// When this is No, the attribute is filtered out while encoding and other crate won't be able to observe it.
/// This can be unexpectedly good for performance, so unless necessary for cross-crate compilation, prefer No.
pub fn encode_cross_crate(&self) -> EncodeCrossCrate {
use AttributeKind::*;
use EncodeCrossCrate::*;
match self {
// tidy-alphabetical-start
Align { .. } => No,
AllowConstFnUnstable(..) => No,
AllowIncoherentImpl(..) => No,
AllowInternalUnsafe(..) => Yes,
AllowInternalUnstable(..) => Yes,
AsPtr(..) => Yes,
AutomaticallyDerived(..) => Yes,
BodyStability { .. } => No,
Coinductive(..) => No,
Cold(..) => No,
Confusables { .. } => Yes,
ConstContinue(..) => No,
ConstStability { .. } => Yes,
ConstStabilityIndirect => No,
ConstTrait(..) => No,
Coroutine(..) => No,
Coverage(..) => No,
CrateName { .. } => No,
CustomMir(_, _, _) => Yes,
DenyExplicitImpl(..) => No,
Deprecation { .. } => Yes,
DoNotImplementViaObject(..) => No,
DocComment { .. } => Yes,
Dummy => No,
ExportName { .. } => Yes,
ExportStable => No,
FfiConst(..) => No,
FfiPure(..) => No,
Fundamental { .. } => Yes,
Ignore { .. } => No,
Inline(..) => No,
Link(..) => No,
LinkName { .. } => Yes, // Needed for rustdoc
LinkOrdinal { .. } => No,
LinkSection { .. } => Yes, // Needed for rustdoc
Linkage(..) => No,
LoopMatch(..) => No,
MacroEscape(..) => No,
MacroExport { .. } => Yes,
MacroTransparency(..) => Yes,
MacroUse { .. } => No,
Marker(..) => No,
MayDangle(..) => No,
MoveSizeLimit { .. } => No,
MustUse { .. } => Yes,
Naked(..) => No,
NoCore(..) => No,
NoImplicitPrelude(..) => No,
NoMangle(..) => Yes, // Needed for rustdoc
NoStd(..) => No,
NonExhaustive(..) => Yes, // Needed for rustdoc
ObjcClass { .. } => No,
ObjcSelector { .. } => No,
Optimize(..) => No,
ParenSugar(..) => No,
PassByValue(..) => Yes,
Path(..) => No,
PatternComplexityLimit { .. } => No,
Pointee(..) => No,
ProcMacro(..) => No,
ProcMacroAttribute(..) => No,
ProcMacroDerive { .. } => No,
PubTransparent(..) => Yes,
RecursionLimit { .. } => No,
Repr { .. } => No,
RustcBuiltinMacro { .. } => Yes,
RustcCoherenceIsCore(..) => No,
RustcLayoutScalarValidRangeEnd(..) => Yes,
RustcLayoutScalarValidRangeStart(..) => Yes,
RustcObjectLifetimeDefault => No,
Sanitize { .. } => No,
ShouldPanic { .. } => No,
SkipDuringMethodDispatch { .. } => No,
SpecializationTrait(..) => No,
Stability { .. } => Yes,
StdInternalSymbol(..) => No,
TargetFeature { .. } => No,
TrackCaller(..) => Yes,
TypeConst(..) => Yes,
TypeLengthLimit { .. } => No,
UnsafeSpecializationMarker(..) => No,
UnstableFeatureBound(..) => No,
Used { .. } => No,
// tidy-alphabetical-end
}
}
}
|
