Enum standalone_syn::ReturnType
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pub enum ReturnType { Default, Type(RArrow, Box<Type>), }
Return type of a function signature.
This type is available if Syn is built with the "derive"
or "full"
feature.
Variants
Default
Return type is not specified.
Functions default to ()
and closures default to type inference.
Type(RArrow, Box<Type>)
A particular type is returned.
Trait Implementations
impl Synom for ReturnType
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impl ToTokens for ReturnType
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fn to_tokens(&self, tokens: &mut Tokens)
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Write self
to the given Tokens
. Read more
fn into_tokens(self) -> Tokens
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Convert self
directly into a Tokens
object. Read more
impl Debug for ReturnType
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fn fmt(&self, __arg_0: &mut Formatter) -> Result
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Formats the value using the given formatter. Read more
impl Eq for ReturnType
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impl PartialEq for ReturnType
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fn eq(&self, __arg_0: &ReturnType) -> bool
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This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, __arg_0: &ReturnType) -> bool
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This method tests for !=
.
impl Hash for ReturnType
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fn hash<__H: Hasher>(&self, __arg_0: &mut __H)
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Feeds this value into the given [Hasher
]. Read more
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
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H: Hasher,
Feeds a slice of this type into the given [Hasher
]. Read more
impl Clone for ReturnType
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fn clone(&self) -> ReturnType
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Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more