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TriviaPolicy

Struct TriviaPolicy 

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pub struct TriviaPolicy {
    pub keep_leading: bool,
    pub keep_trailing: bool,
}
Expand description

Caller-chosen trivia handling for an edit (AD-004).

Controls whether the leading / trailing trivia adjacent to the target is kept or discarded when the target is removed or replaced. Leading trivia is the run of trivia tokens immediately preceding the target’s first element; trailing trivia is the run immediately following the target’s last element, within the same parent.

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§keep_leading: bool

Keep (true) or discard (false) the leading trivia adjacent to the target.

§keep_trailing: bool

Keep (true) or discard (false) the trailing trivia adjacent to the target.

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impl TriviaPolicy

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pub const KEEP_ALL: Self

Keep all adjacent trivia (the conservative, lossless-by-default policy).

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pub const DISCARD_ALL: Self

Discard both adjacent leading and trailing trivia.

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impl Clone for TriviaPolicy

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fn clone(&self) -> TriviaPolicy

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for TriviaPolicy

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impl Debug for TriviaPolicy

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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 Default for TriviaPolicy

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fn default() -> Self

Defaults to TriviaPolicy::KEEP_ALL — never drop bytes unless asked.

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impl Eq for TriviaPolicy

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impl Hash for TriviaPolicy

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for TriviaPolicy

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fn eq(&self, other: &TriviaPolicy) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for TriviaPolicy

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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<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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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,

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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)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.