Trait ParseOption

pub trait ParseOption: Sized {
    // Required method
    fn from_stream(input: ParseStream<'_>) -> Result<Self>;
}

Makes a type usable for AttributeOptions

Required Methods

fn from_stream(input: ParseStream<'_>) -> Result<Self>

Parses the type from the given ParseStream.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl ParseOption for Meta

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for Expr

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for GenericParam

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for TypeParamBound

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for WherePredicate

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for Lit

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for Visibility

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for Type

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for bool

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for char

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for f32

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for f64

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for i8

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for i16

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for i32

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for i64

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for isize

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for u8

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for u16

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for u32

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for u64

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for usize

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for String

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for Ident

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for Literal

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for MetaList

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for MetaNameValue

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprArray

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprAssign

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprAsync

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprAwait

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprBinary

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprBlock

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprBreak

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprCall

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprCast

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprClosure

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprConst

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprContinue

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprField

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprForLoop

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprIf

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprIndex

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprInfer

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprLet

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprLit

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprLoop

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprMacro

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprMatch

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprMethodCall

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprParen

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprPath

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprRange

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprReference

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprRepeat

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprReturn

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprStruct

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprTry

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprTryBlock

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprTuple

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprUnary

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprUnsafe

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprWhile

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ExprYield

Available on crate feature full only.

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for BoundLifetimes

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for ConstParam

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for LifetimeParam

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for TraitBound

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for TypeParam

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for Lifetime

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for LitBool

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for LitByte

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for LitByteStr

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for LitChar

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for LitFloat

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for LitInt

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for LitStr

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for AngleBracketedGenericArguments

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for Path

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for Abi

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for BareFnArg

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for TypeArray

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for TypeBareFn

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for TypeGroup

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for TypeImplTrait

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for TypeInfer

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for TypeMacro

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for TypeNever

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for TypeParen

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for TypePath

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for TypePtr

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for TypeReference

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for TypeSlice

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for TypeTraitObject

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl ParseOption for TypeTuple

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl<T: ParseOption> ParseOption for Option<T>

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl<T: ParseOption> ParseOption for Box<T>

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl<T: ParseOption> ParseOption for Rc<T>

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl<T: ParseOption> ParseOption for Arc<T>

fn from_stream(input: ParseStream<'_>) -> Result<Self>

impl<T: ParseOption, P: Parse> ParseOption for Punctuated<T, P>

fn from_stream(input: ParseStream<'_>) -> Result<Self>

Implementors