Struct Arg

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pub struct Arg {
    pub arg: arg,
    pub foobar: FooBar,
}

Expand description

Baz

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§arg: arg§foobar: FooBar

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impl Clone for Arg

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fn clone(&self) -> Arg

Returns a duplicate 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 Arg

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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 EasyArgument for Arg

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fn name_display() -> &'static str

Returns attribute name for display purposes.

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fn name_span(&self) -> Span

Returns attribute name for display purposes.

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impl EasyPeek for Arg
where for<'a> EasyPeekHack<'a, arg>: EasyPeek,

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fn peek(lookahead1: &Lookahead1<'_>) -> bool

Peek head token before parsing.

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fn peek_stream(stream: ParseStream<'_>) -> bool

Peek head token before parsing.

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impl Parse for Arg

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fn parse(input: ParseStream<'_>) -> Result<Self, Error>

Auto Trait Implementations§

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Blanket Implementations§

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impl<T> Any for T
where 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 T
where 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 T
where 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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> EasyArgumentField for T
where T: EasyArgumentGroup,

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fn try_parse( lookahead1: &Lookahead1<'_>, stream: &ParseBuffer<'_>, ) -> Result<Option<T>, Error>

Attempt to parse attribute field. Returns some field when parsing succeeds. Returns none if attribute peeking returns false, signalling that stream contains some other attribute. Returns error if peeking returns true but parsing fails.

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fn try_extend( &mut self, lookahead1: &Lookahead1<'_>, stream: &ParseBuffer<'_>, ) -> Result<bool, Error>

Attempt to parse attribute field when it already has been successfully parsed. Field value should extend itself with newly parsed attribute or return error. Returns true when parsing and extending succeeds. Returns false if attribute peeking returns false, signalling that stream contains some other attribute. Returns error if peeking returns true but parsing or extending fails.

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fn missing() -> Result<T, String>

Called if the attribute field was never parsed. Returns error if attribute is mandatory. Otherwise returns an instance that will be used to build attributes structure.

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impl<T> EasyArgumentGroup for T
where T: EasyArgument,

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fn try_parse( lookahead1: &Lookahead1<'_>, stream: &ParseBuffer<'_>, ) -> Result<Option<T>, Error>

Attempt to parse attribute group. Returns some attribute when parsing succeeds. Returns none if attribute peeking returns false, signalling that stream contains some other attribute. Returns error if peeking returns true but parsing fails.

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fn overlap_error(&self, other: &T) -> Error

Produces error with appropriate message when the attribute group overlaps another instance. This is called by certain EasyArgumentField implementations. Read more

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