Struct syn::ExprIf [−][src]
pub struct ExprIf { pub attrs: Vec<Attribute>, pub if_token: If, pub cond: Box<Expr>, pub then_branch: Block, pub else_branch: Option<(Else, Box<Expr>)>, }
An if
expression with an optional else
block: if expr { ... } else { ... }
.
The else
branch expression may only be an If
or Block
expression, not any of the other types of expression.
This type is available if Syn is built with the "full"
feature.
Fields
attrs: Vec<Attribute>
if_token: If
cond: Box<Expr>
then_branch: Block
else_branch: Option<(Else, Box<Expr>)>
Trait Implementations
impl ToTokens for ExprIf
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impl ToTokens for ExprIf
fn to_tokens(&self, tokens: &mut TokenStream)
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fn to_tokens(&self, tokens: &mut TokenStream)
Write self
to the given TokenStream
. Read more
fn into_token_stream(self) -> TokenStream
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fn into_token_stream(self) -> TokenStream
Convert self
directly into a TokenStream
object. Read more
impl Debug for ExprIf
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impl Debug for ExprIf
fn fmt(&self, f: &mut Formatter) -> Result
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fn fmt(&self, f: &mut Formatter) -> Result
Formats the value using the given formatter. Read more
impl Eq for ExprIf
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impl Eq for ExprIf
impl PartialEq for ExprIf
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impl PartialEq for ExprIf
fn eq(&self, other: &ExprIf) -> bool
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fn eq(&self, other: &ExprIf) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &ExprIf) -> bool
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fn ne(&self, other: &ExprIf) -> bool
This method tests for !=
.
impl Hash for ExprIf
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impl Hash for ExprIf
fn hash<__H: Hasher>(&self, state: &mut __H)
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fn hash<__H: Hasher>(&self, state: &mut __H)
Feeds this value into the given [Hasher
]. Read more
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
1.3.0[src]
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
1.3.0
[src]Feeds a slice of this type into the given [Hasher
]. Read more
impl Clone for ExprIf
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impl Clone for ExprIf
fn clone(&self) -> ExprIf
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fn clone(&self) -> ExprIf
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
1.0.0[src]
fn clone_from(&mut self, source: &Self)
1.0.0
[src]Performs copy-assignment from source
. Read more
impl From<ExprIf> for Expr
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impl From<ExprIf> for Expr