pub type Key<'tcx> = SimplifiedType;

Aliased Type§

enum Key<'tcx> {
Show 22 variants Bool, Char, Int(IntTy), Uint(UintTy), Float(FloatTy), Adt(DefId), Foreign(DefId), Str, Array, Slice, Ref(Mutability), Ptr(Mutability), Never, Tuple(usize), MarkerTraitObject, Trait(DefId), Closure(DefId), Coroutine(DefId), CoroutineWitness(DefId), Function(usize), Placeholder, Error,
}

Variants§

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Bool

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Char

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Int(IntTy)

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Uint(UintTy)

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Float(FloatTy)

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Adt(DefId)

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Foreign(DefId)

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Str

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Array

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Slice

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Ref(Mutability)

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Ptr(Mutability)

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Never

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Tuple(usize)

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MarkerTraitObject

A trait object, all of whose components are markers (e.g., dyn Send + Sync).

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Trait(DefId)

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Closure(DefId)

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Coroutine(DefId)

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CoroutineWitness(DefId)

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Function(usize)

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Placeholder

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Error

Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 16 bytes

Size for each variant:

  • Bool: 0 bytes
  • Char: 0 bytes
  • Int: 1 byte
  • Uint: 1 byte
  • Float: 1 byte
  • Adt: 11 bytes
  • Foreign: 11 bytes
  • Str: 0 bytes
  • Array: 0 bytes
  • Slice: 0 bytes
  • Ref: 1 byte
  • Ptr: 1 byte
  • Never: 0 bytes
  • Tuple: 15 bytes
  • MarkerTraitObject: 0 bytes
  • Trait: 11 bytes
  • Closure: 11 bytes
  • Coroutine: 11 bytes
  • CoroutineWitness: 11 bytes
  • Function: 15 bytes
  • Placeholder: 0 bytes
  • Error: 0 bytes