pub struct Trait<'a> { /* private fields */ }
Expand description

A trait Generatable / Template. This asserts that some type implements some trait.

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impl<'a> Trait<'a>

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pub fn new<T>(trait_bound: T) -> Selfwhere T: Into<MaybeBorrowed<'a, TraitBound>>,

Creates a new trait template from some trait bound. Takes any T that can be turned into a MaybeBorrowed type, to support references as well as owned types

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impl<'a> FromMaybeBorrowed<'a, TraitBound> for Trait<'a>

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fn from_maybe_borrowed(from: MaybeBorrowed<'a, TraitBound>) -> Self

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fn from_owned(from: T) -> Selfwhere Self: Sized,

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fn from_borrowed(from: &'a T) -> Selfwhere Self: Sized,

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impl<'a> Generatable<'a> for Trait<'a>

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type GeneratableData = ()

The type of any data passed from the Generatable stage to proceeding stages.
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type TemplateData = Ident

The type of any data passed from the Template stage to proceeding stages.
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type Assert = Ident

The type with can be checked against this template.
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fn template( &self, _: &mut Context<'_>, _passed: &Self::GeneratableData ) -> PassedData<Self::TemplateData>

This is the method the Template stage is composed of. Should return Tokens (if any) generated by this stage, plus optionally any data passed to preceding stages.
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fn assert( &self, _context: &mut Context<'_>, (_, assert_trait_bound): (&Self::GeneratableData, &Self::TemplateData), to_assert: &Self::Assert ) -> Option<TokenStream>

This is the method the Assert stage is composed of. Should return Tokens generated by this stage.
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fn generatable(_context: &mut Context<'_>) -> PassedData<Self::GeneratableData>where Self: Sized,

This is the method the Generatable stage is composed of. Should return Tokens (if any) generated by this stage, plus optionally any data passed to preceding stages.
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impl<'a> Ord for Trait<'a>

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fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl<'a> PartialEq for Trait<'a>

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fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<'a> PartialOrd for Trait<'a>

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fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl<'a> Eq for Trait<'a>

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impl<'a> TidAble<'a> for Trait<'a>

Auto Trait Implementations§

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impl<'a> RefUnwindSafe for Trait<'a>

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impl<'a> !Send for Trait<'a>

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impl<'a> !Sync for Trait<'a>

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impl<'a> Unpin for Trait<'a>

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impl<'a> UnwindSafe for Trait<'a>

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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> AnyExt for Twhere T: Any + ?Sized,

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fn downcast_ref<T>(this: &Self) -> Option<&T>where T: Any,

Attempts to downcast this to T behind reference
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fn downcast_mut<T>(this: &mut Self) -> Option<&mut T>where T: Any,

Attempts to downcast this to T behind mutable reference
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fn downcast_rc<T>(this: Rc<Self>) -> Result<Rc<T>, Rc<Self>>where T: Any,

Attempts to downcast this to T behind Rc pointer
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fn downcast_arc<T>(this: Arc<Self>) -> Result<Arc<T>, Arc<Self>>where T: Any,

Attempts to downcast this to T behind Arc pointer
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fn downcast_box<T>(this: Box<Self>) -> Result<Box<T>, Box<Self>>where T: Any,

Attempts to downcast this to T behind Box pointer
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fn downcast_move<T>(this: Self) -> Option<T>where T: Any, Self: Sized,

Attempts to downcast owned Self to T, useful only in generic context as a workaround for specialization
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impl<'a, Gen> AttachGenerics<'a> for Genwhere Gen: Generatable<'a>,

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type Output = MaybeBorrowed<'a, Gen>

An optional type wrapper around the type the generics will be attached to Used by this crate to wrap types with MaybeBorrowed to allow both references and owned types to be represented by the same type.
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fn with_optional_generics<G>( self, generics: Option<G> ) -> WithGenerics<'a, <Gen as AttachGenerics<'a>>::Output>where G: Into<MaybeBorrowed<'a, Generics>>,

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fn with_generics<G>(self, generics: G) -> WithGenerics<'a, Self::Output>where G: Into<MaybeBorrowed<'a, Generics>>, Self: Sized,

Attach some generics G to Self. This allows for the generics to to not exactly be syn::Generics but any type that can be turned into MaybeBorrowed<syn::Generics>. This allows for both &syn::Generics and syn::Generics to be attached using the same trait.
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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<'a, T, U> ResolveBounds<'a, T> for Uwhere T: AssertableWithBounds<'a, U> + 'a,

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fn resolve_for( self, assertable: impl Into<MaybeBorrowed<'a, T>> ) -> ResolvedBounds<'a, U, T>

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impl<'a, T> Tid<'a> for Twhere T: TidAble<'a> + ?Sized,

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fn self_id(&self) -> TypeId

Returns type id of the type of self Read more
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fn id() -> TypeId

Returns type id of this type
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impl<'a, X> TidExt<'a> for Xwhere X: Tid<'a> + ?Sized,

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fn is<T>(&self) -> boolwhere T: Tid<'a>,

Returns true if type behind self is equal to the type of T.
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fn downcast_ref<T, 'b>(&'b self) -> Option<&'b T>where T: Tid<'a>,

Attempts to downcast self to T behind reference
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fn downcast_mut<T, 'b>(&'b mut self) -> Option<&'b mut T>where T: Tid<'a>,

Attempts to downcast self to T behind mutable reference
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fn downcast_rc<T>(self: Rc<Self>) -> Result<Rc<T>, Rc<Self>>where T: Tid<'a>,

Attempts to downcast self to T behind Rc pointer
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fn downcast_arc<T>(self: Arc<Self>) -> Result<Arc<T>, Arc<Self>>where T: Tid<'a>,

Attempts to downcast self to T behind Arc pointer
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fn downcast_box<T>(self: Box<Self>) -> Result<Box<T>, Box<Self>>where T: Tid<'a>,

Attempts to downcast self to T behind Box pointer
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fn downcast_move<T>(self) -> Option<T>where T: Tid<'a>, Self: Sized,

Attempts to downcast owned Self to T, useful only in generic context as a workaround for specialization
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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.
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impl<T> TypeEq for Twhere T: ?Sized,

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type This = T