rustc_attr_ir/
encode_cross_crate.rs

1use crate::AttributeKind;
2
3#[derive(#[automatically_derived]
impl ::core::cmp::PartialEq for EncodeCrossCrate {
    #[inline]
    fn eq(&self, other: &EncodeCrossCrate) -> bool {
        let __self_discr = ::core::intrinsics::discriminant_value(self);
        let __arg1_discr = ::core::intrinsics::discriminant_value(other);
        __self_discr == __arg1_discr
    }
}PartialEq)]
4pub enum EncodeCrossCrate {
5    Yes,
6    No,
7}
8
9impl AttributeKind {
10    /// Whether this attribute should be encoded in metadata files.
11    ///
12    /// If this is "Yes", then another crate can do `tcx.get_all_attrs(did)` for a did in this crate, and get the attribute.
13    /// When this is No, the attribute is filtered out while encoding and other crate won't be able to observe it.
14    /// This can be unexpectedly good for performance, so unless necessary for cross-crate compilation, prefer No.
15    pub fn encode_cross_crate(&self) -> EncodeCrossCrate {
16        use AttributeKind::*;
17        use EncodeCrossCrate::*;
18
19        match self {
20            // tidy-alphabetical-start
21            AllowInternalUnsafe(..) => Yes,
22            AllowInternalUnstable(..) => Yes,
23            AutomaticallyDerived => Yes,
24            CfgAttrTrace(..) => Yes,
25            CfgTrace(..) => Yes,
26            CfiEncoding { .. } => Yes,
27            Cold => No,
28            CollapseDebugInfo(..) => Yes,
29            CompilerBuiltins => No,
30            ConstContinue(..) => No,
31            Coroutine => No,
32            Coverage(..) => No,
33            CrateName { .. } => No,
34            CrateType(_) => No,
35            CustomMir(_, _) => Yes,
36            DebuggerVisualizer(..) => No,
37            DefaultLibAllocator => No,
38            Deprecated { .. } => Yes,
39            DoNotRecommend => Yes,
40            Doc(_) => Yes,
41            DocComment { .. } => Yes,
42            EiiDeclaration(_) => Yes,
43            EiiImpl(..) => No,
44            ExportName { .. } => Yes,
45            ExportStable => No,
46            Feature(..) => No,
47            FfiConst => No,
48            FfiPure(..) => No,
49            Fundamental { .. } => Yes,
50            Ignore { .. } => No,
51            Inline(..) => No,
52            InstructionSet(..) => No,
53            InstrumentFn(..) => No,
54            Lang(..) => Yes,
55            Link(..) => No,
56            LinkName { .. } => Yes, // Needed for rustdoc
57            LinkOrdinal { .. } => No,
58            LinkSection { .. } => Yes, // Needed for rustdoc
59            Linkage(..) => No,
60            LoopMatch(..) => No,
61            MacroEscape => No,
62            MacroExport { .. } => Yes,
63            MacroUse { .. } => No,
64            Marker => No,
65            MayDangle(..) => No,
66            MoveSizeLimit { .. } => No,
67            MustNotSupend { .. } => Yes,
68            MustUse { .. } => Yes,
69            Naked(..) => No,
70            NeedsAllocator => No,
71            NeedsPanicRuntime => No,
72            NoBuiltins => Yes,
73            NoCore => No,
74            NoImplicitPrelude => No,
75            NoLink => No,
76            NoMain => No,
77            NoMangle(..) => Yes, // Needed for rustdoc
78            NoStd => No,
79            NonExhaustive(..) => Yes, // Needed for rustdoc
80            OnConst { .. } => Yes,
81            OnMove { .. } => Yes,
82            OnTypeError { .. } => Yes,
83            OnUnimplemented { .. } => Yes,
84            OnUnknown { .. } => Yes,
85            OnUnmatchedArgs { .. } => Yes,
86            Opaque => Yes,
87            Optimize(..) => No,
88            PanicRuntime => No,
89            PatchableFunctionEntry { .. } => Yes,
90            Path(..) => No,
91            PatternComplexityLimit { .. } => No,
92            PinV2(..) => Yes,
93            PreludeImport => No,
94            ProcMacro => No,
95            ProcMacroAttribute => No,
96            ProcMacroDerive { .. } => No,
97            ProfilerRuntime => No,
98            RecursionLimit { .. } => No,
99            ReexportTestHarnessMain(..) => No,
100            RegisterTool { .. } => No,
101            Repr { .. } => No,
102            RustcAbi { .. } => No,
103            RustcAlign { .. } => No,
104            RustcAllocator => No,
105            RustcAllocatorZeroed => No,
106            RustcAllocatorZeroedVariant { .. } => Yes,
107            RustcAllowConstFnUnstable(..) => No,
108            RustcAllowIncoherentImpl(..) => No,
109            RustcAllowLifetimeDependentSpecialization => No,
110            RustcAsPtr => Yes,
111            RustcAutodiff(..) => Yes,
112            RustcBodyStability { .. } => No,
113            RustcBuiltinMacro { .. } => Yes,
114            RustcCanonicalSymbol => No,
115            RustcCaptureAnalysis => No,
116            RustcCguTestAttr { .. } => No,
117            RustcClean { .. } => No,
118            RustcCoherenceIsCore => No,
119            RustcCoinductive => No,
120            RustcComptime(..) => No, // Encoded directly in signature
121            RustcConfusables { .. } => Yes,
122            RustcConstStability { .. } => Yes,
123            RustcConstStableIndirect => No,
124            RustcConversionSuggestion => Yes,
125            RustcDeallocator => No,
126            RustcDelayedBugFromInsideQuery => No,
127            RustcDenyExplicitImpl => No,
128            RustcDeprecatedSafe2024 { .. } => Yes,
129            RustcDiagnosticItem(..) => Yes,
130            RustcDoNotConstCheck => Yes,
131            RustcDocPrimitive(..) => Yes,
132            RustcDummy => No,
133            RustcDumpDefParents => No,
134            RustcDumpDefPath(..) => No,
135            RustcDumpGenerics => No,
136            RustcDumpHiddenTypeOfOpaques => No,
137            RustcDumpInferredOutlives => No,
138            RustcDumpItemBounds => No,
139            RustcDumpLayout(..) => No,
140            RustcDumpObjectLifetimeDefaults => No,
141            RustcDumpPredicates => No,
142            RustcDumpSymbolName(..) => Yes,
143            RustcDumpUserArgs => No,
144            RustcDumpVariances => No,
145            RustcDumpVariancesOfOpaques => No,
146            RustcDumpVtable(..) => No,
147            RustcDynIncompatibleTrait(..) => No,
148            RustcEffectiveVisibility => Yes,
149            RustcEiiForeignItem => No,
150            RustcEvaluateWhereClauses => Yes,
151            RustcHasIncoherentInherentImpls => Yes,
152            RustcIfThisChanged(..) => No,
153            RustcInheritOverflowChecks => No,
154            RustcInsignificantDtor => Yes,
155            RustcIntrinsic => Yes,
156            RustcIntrinsicConstStableIndirect => No,
157            RustcLegacyConstGenerics { .. } => Yes,
158            RustcLintOptDenyFieldAccess { .. } => Yes,
159            RustcLintOptTy => Yes,
160            RustcLintQueryInstability => Yes,
161            RustcLintUntrackedQueryInformation => Yes,
162            RustcMacroTransparency(..) => Yes,
163            RustcMain => No,
164            RustcMir(..) => Yes,
165            RustcMustImplementOneOf { .. } => No,
166            RustcMustMatchExhaustively(..) => Yes,
167            RustcNeverReturnsNullPtr => Yes,
168            RustcNeverTypeOptions { .. } => No,
169            RustcNoImplicitAutorefs => Yes,
170            RustcNoImplicitBounds => No,
171            RustcNoMirInline => Yes,
172            RustcNoWritable => Yes,
173            RustcNonConstTraitMethod => No, // should be reported via other queries like `constness`
174            RustcNonnullOptimizationGuaranteed => Yes,
175            RustcNounwind => No,
176            RustcObjcClass { .. } => No,
177            RustcObjcSelector { .. } => No,
178            RustcOffloadKernel => Yes,
179            RustcPanicsWhenZero => Yes,
180            RustcParenSugar => No,
181            RustcPassByValue => Yes,
182            RustcPassIndirectlyInNonRusticAbis(..) => No,
183            RustcPreserveUbChecks => No,
184            RustcProcMacroDecls => No,
185            RustcPubTransparent(..) => Yes,
186            RustcReallocator => No,
187            RustcRegions => No,
188            RustcReservationImpl(..) => Yes,
189            RustcScalableVector { .. } => Yes,
190            RustcShouldNotBeCalledOnConstItems => Yes,
191            RustcSimdMonomorphizeLaneLimit(..) => Yes, // Affects layout computation, which needs to work cross-crate
192            RustcSkipDuringMethodDispatch { .. } => No,
193            RustcSpecializationTrait => No,
194            RustcStdInternalSymbol => No,
195            RustcStrictCoherence(..) => Yes,
196            RustcTestEntrypointMarker => No,
197            RustcTestMarker(..) => No,
198            RustcThenThisWouldNeed(..) => No,
199            RustcTrivialFieldReads => Yes,
200            Sanitize { .. } => No,
201            ShouldPanic { .. } => No,
202            Splat(..) => Yes,
203            Stability { .. } => Yes,
204            TargetFeature { .. } => No,
205            TestRunner(..) => Yes,
206            ThreadLocal => No,
207            TrackCaller(..) => Yes,
208            TypeLengthLimit { .. } => No,
209            Unroll(..) => No,
210            UnstableFeatureBound(..) => No,
211            UnstableRemoved(..) => Yes,
212            Used { .. } => No,
213            WindowsSubsystem(..) => No,
214            // tidy-alphabetical-end
215        }
216    }
217}
rustc_attr_ir/encode_cross_crate.rs

rustc_attr_ir/
encode_cross_crate.rs
