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Expr

Struct Expr 

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pub struct Expr(/* private fields */);
Expand description

One of expressions.

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impl Expr

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pub fn get(&self) -> &FullExpr

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pub fn as_atom(&self) -> Option<&str>

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pub fn as_string(&self) -> Option<&str>

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pub fn as_u32(&self, text: &str) -> Option<u32>

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pub fn as_list(&self) -> Option<&[Expr]>

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pub fn as_tuple(&self) -> Option<(Option<&AtomToken>, &[Expr])>

Trait Implementations§

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impl Clone for Expr

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fn clone(&self) -> Expr

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 Debug for Expr

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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 Format for Expr

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fn format(&self, fmt: &mut Formatter)

Formats this item.
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impl From<BaseExpr> for Expr

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fn from(expr: BaseExpr) -> Self

Converts to this type from the input type.
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impl Parse for Expr

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fn parse(ts: &mut TokenStream) -> Result<Self>

Parse an item from the given token stream.
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impl ResumeParse<Expr> for BinaryOpCallExpr

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fn resume_parse(ts: &mut TokenStream, left: Expr) -> Result<Self>

Resume to parse an item from the given token stream. Read more
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impl ResumeParse<Expr> for MapUpdateExpr

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fn resume_parse(ts: &mut TokenStream, value: Expr) -> Result<Self>

Resume to parse an item from the given token stream. Read more
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impl ResumeParse<Expr> for RecordAccessOrUpdateExpr

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fn resume_parse(ts: &mut TokenStream, value: Expr) -> Result<Self>

Resume to parse an item from the given token stream. Read more
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impl ResumeParse<Expr> for RecordAccessExpr

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fn resume_parse(ts: &mut TokenStream, value: Expr) -> Result<Self>

Resume to parse an item from the given token stream. Read more
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impl ResumeParse<Expr> for RecordUpdateExpr

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fn resume_parse(ts: &mut TokenStream, value: Expr) -> Result<Self>

Resume to parse an item from the given token stream. Read more
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impl Span for Expr

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fn start_position(&self) -> Position

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fn end_position(&self) -> Position

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fn text<'a>(&self, s: &'a str) -> &'a str

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fn contains_newline(&self) -> bool

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fn contains(&self, position: Position) -> bool

Auto Trait Implementations§

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impl Freeze for Expr

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impl RefUnwindSafe for Expr

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impl Send for Expr

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impl Sync for Expr

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impl Unpin for Expr

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impl UnsafeUnpin for Expr

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impl UnwindSafe for Expr

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> 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.