pub enum ExprUseNode<'tcx> {
    Local(&'tcx Local<'tcx>),
    ConstStatic(OwnerId),
    Return(OwnerId),
    Field(&'tcx ExprField<'tcx>),
    FnArg(&'tcx Expr<'tcx>, usize),
    MethodArg(HirId, Option<&'tcx GenericArgs<'tcx>>, usize),
    Callee,
    FieldAccess(Ident),
}
Expand description

The node which consumes a value.

Variants§

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Local(&'tcx Local<'tcx>)

Assignment to, or initializer for, a local

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ConstStatic(OwnerId)

Initializer for a const or static item.

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Return(OwnerId)

Implicit or explicit return from a function.

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Field(&'tcx ExprField<'tcx>)

Initialization of a struct field.

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FnArg(&'tcx Expr<'tcx>, usize)

An argument to a function.

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MethodArg(HirId, Option<&'tcx GenericArgs<'tcx>>, usize)

An argument to a method.

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Callee

The callee of a function call.

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FieldAccess(Ident)

Access of a field.

Implementations§

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impl<'tcx> ExprUseNode<'tcx>

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pub fn is_return(&self) -> bool

Checks if the value is returned from the function.

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pub fn is_recv(&self) -> bool

Checks if the value is used as a method call receiver.

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pub fn defined_ty(&self, cx: &LateContext<'tcx>) -> Option<DefinedTy<'tcx>>

Gets the needed type as it’s defined without any type inference.

Auto Trait Implementations§

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impl<'tcx> RefUnwindSafe for ExprUseNode<'tcx>

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impl<'tcx> !Send for ExprUseNode<'tcx>

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impl<'tcx> !Sync for ExprUseNode<'tcx>

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impl<'tcx> Unpin for ExprUseNode<'tcx>

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impl<'tcx> UnwindSafe for ExprUseNode<'tcx>

Blanket Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

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: 24 bytes

Size for each variant:

  • Local: 16 bytes
  • ConstStatic: 8 bytes
  • Return: 8 bytes
  • Field: 16 bytes
  • FnArg: 24 bytes
  • MethodArg: 24 bytes
  • Callee: 0 bytes
  • FieldAccess: 16 bytes