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RewriteCtx

cure_engine::rule

Struct RewriteCtx 

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pub struct RewriteCtx<'a, L: Lang> {
    pub lang: &'a mut L,
    /* private fields */
}
Expand description

规则上下文：语言 AST 的可变访问 + 当前扫描的父/序号信息。

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§lang: &'a mut L

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impl<'a, L: Lang> RewriteCtx<'a, L>

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pub fn parent(&self, id: L::Id) -> Option<L::Id>

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pub fn index(&self, id: L::Id) -> Option<usize>

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pub fn root(&self) -> L::Id

Auto Trait Implementations§

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impl<'a, L> !UnwindSafe for RewriteCtx<'a, L>

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impl<'a, L> Freeze for RewriteCtx<'a, L>
where &'a mut L: Freeze, &'a Walk<L>: Freeze,

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impl<'a, L> RefUnwindSafe for RewriteCtx<'a, L>
where &'a mut L: RefUnwindSafe, &'a Walk<L>: RefUnwindSafe,

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impl<'a, L> Send for RewriteCtx<'a, L>
where &'a mut L: Send, &'a Walk<L>: Send,

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impl<'a, L> Sync for RewriteCtx<'a, L>
where &'a mut L: Sync, &'a Walk<L>: Sync,

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impl<'a, L> Unpin for RewriteCtx<'a, L>
where &'a mut L: Unpin, &'a Walk<L>: Unpin,

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impl<'a, L> UnsafeUnpin for RewriteCtx<'a, L>
where &'a mut L: UnsafeUnpin, &'a Walk<L>: UnsafeUnpin,

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> 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, 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.