Struct rustc_ast::ast::FnDecl

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pub struct FnDecl {
    pub inputs: ThinVec<Param>,
    pub output: FnRetTy,
}
Expand description

A signature (not the body) of a function declaration.

E.g., fn foo(bar: baz).

Please note that it’s different from FnHeader structure which contains metadata about function safety, asyncness, constness and ABI.

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§inputs: ThinVec<Param>§output: FnRetTy

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impl FnDecl

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pub fn has_self(&self) -> bool

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pub fn c_variadic(&self) -> bool

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impl Clone for FnDecl

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fn clone(&self) -> FnDecl

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for FnDecl

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<__D: Decoder> Decodable<__D> for FnDecl

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fn decode(__decoder: &mut __D) -> Self

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impl<__E: Encoder> Encodable<__E> for FnDecl

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fn encode(&self, __encoder: &mut __E)

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impl !RefUnwindSafe for FnDecl

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impl !Send for FnDecl

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impl !Sync for FnDecl

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impl Unpin for FnDecl

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impl !UnwindSafe for FnDecl

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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> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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