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354fcf2b52
Add infrastructure to apply a derive macro to arguments, consuming and returning a `TokenTree` only. Handle `SyntaxExtensionKind::MacroRules` when expanding a derive, if the macro's kinds support derive. Add tests covering various cases of `macro_rules` derives. Note that due to a pre-existing FIXME in `expand.rs`, derives are re-queued and some errors get emitted twice. Duplicate diagnostic suppression makes them not visible, but the FIXME should still get fixed.
18 lines
596 B
Plaintext
18 lines
596 B
Plaintext
MyExportedDerive: body="struct _S1;"
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MyExportedDerive: body="struct _Twice1;"
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MyExportedDerive: body="struct _Twice1;"
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MyExportedDerive!("")
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MyExportedDerive!("invoked, arguments")
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MyExportedDerive: body="struct _S2;"
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MyExportedDerive: body="struct _Twice2;"
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MyExportedDerive: body="struct _Twice2;"
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MyExportedDerive!("")
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MyExportedDerive!("invoked, arguments")
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MyLocalDerive: body="struct _S3;"
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MyLocalDerive: body="struct _Twice3;"
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MyLocalDerive: body="struct _Twice3;"
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MyLocalDerive!("")
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MyLocalDerive!("invoked, arguments")
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MyGlobalType::name(): MyGlobalType
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MyLocalType::name(): MyLocalType
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