Struct darling::usage::Options

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pub struct Options { /* private fields */ }

Expand description

Control struct for searching type parameters.

This acts as the search context, preserving information that might have been kept on a visitor in a different implementation. Trait implementers are required to pass this through on any invocations they make.

Usage

For extensibility, Options hides all of its fields from consumers. To create an instance, use the From<Purpose> trait implementation:

let opts: Options = Purpose::BoundImpl.into();
assert!(!opts.include_type_path_qself());

Implementations

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impl Options

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pub fn include_type_path_qself(&self) -> bool

Returns true if the implementer of UseTypeParams should search <___ as ...>::... when looking for type parameter uses.

Trait Implementations

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impl Clone for Options

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fn clone(&self) -> Options

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 Options

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

Formats the value using the given formatter. Read more

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impl From<Purpose> for Options

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fn from(purpose: Purpose) -> Options

Converts to this type from the input type.

Auto Trait Implementations

impl RefUnwindSafe for Options

impl Send for Options

impl Sync for Options

impl Unpin for Options

impl UnwindSafe for Options

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,

const: unstable · source

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,

const: unstable · source

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

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

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 T where
T: Clone,

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)

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

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

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct darling::usage::Options

Usage

Implementations

impl Options

pub fn include_type_path_qself(&self) -> bool

Trait Implementations

impl Clone for Options

fn clone(&self) -> Options

fn clone_from(&mut self, source: &Self)

impl Debug for Options

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

impl From<Purpose> for Options

fn from(purpose: Purpose) -> Options

Auto Trait Implementations

impl RefUnwindSafe for Options

impl Send for Options

impl Sync for Options

impl Unpin for Options

impl UnwindSafe for Options

Blanket Implementations

impl<T> Any for T where
T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where
T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where
T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where
U: From<T>,

fn into(self) -> U

impl<T> ToOwned for T where
T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Struct darling::usage::Options

Usage

Implementations

impl Options

pub fn include_type_path_qself(&self) -> bool

Trait Implementations

impl Clone for Options

fn clone(&self) -> Options

fn clone_from(&mut self, source: &Self)

impl Debug for Options

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

impl From<Purpose> for Options

fn from(purpose: Purpose) -> Options

Auto Trait Implementations

impl RefUnwindSafe for Options

impl Send for Options

impl Sync for Options

impl Unpin for Options

impl UnwindSafe for Options

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,