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ExprKind

Enum ExprKind 

Source
pub enum ExprKind {
Show 19 variants Null, Bool(bool), Int(i64), IntOverflow(String), Float(f64), String(String), Bytes(Vec<u8>), Ident(String), List(Vec<Expr>), Map(Vec<(Expr, Expr)>), Path(Vec<PathPart>), Member { object: Box<Expr>, field: Ident, }, Index { object: Box<Expr>, index: Box<Expr>, }, Slice { object: Box<Expr>, start: Box<Expr>, end: Box<Expr>, }, Call { callee: Callee, args: Vec<Expr>, }, Unary { op: UnaryOp, operand: Box<Expr>, }, Binary { op: BinaryOp, op_span: Span, left: Box<Expr>, right: Box<Expr>, }, Is { value: Box<Expr>, keyword: Span, type_name: Ident, }, Ternary { condition: Box<Expr>, question: Span, then: Box<Expr>, otherwise: Box<Expr>, },
}

Variants§

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Null

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Bool(bool)

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Int(i64)

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IntOverflow(String)

An integer literal beyond i64: it compiles, and fails when evaluated.

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Float(f64)

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String(String)

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Bytes(Vec<u8>)

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Ident(String)

A variable: request, a wildcard, a parameter or a let.

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List(Vec<Expr>)

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Map(Vec<(Expr, Expr)>)

{k: v, …}, in source order.

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Path(Vec<PathPart>)

A path literal: /databases/$(database)/documents.

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Member

object.field.

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§object: Box<Expr>
§field: Ident
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Index

object[index].

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§object: Box<Expr>
§index: Box<Expr>
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Slice

object[start:end].

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§object: Box<Expr>
§start: Box<Expr>
§end: Box<Expr>
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Call

f(args), math.abs(args) or receiver.f(args).

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§callee: Callee
§args: Vec<Expr>
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Unary

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§operand: Box<Expr>
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Binary

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§op_span: Span

The operator token.

§left: Box<Expr>
§right: Box<Expr>
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Is

value is type.

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§value: Box<Expr>
§keyword: Span

The is token.

§type_name: Ident
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Ternary

condition ? then : otherwise.

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§condition: Box<Expr>
§question: Span

The ? token.

§then: Box<Expr>
§otherwise: Box<Expr>

Trait Implementations§

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impl Clone for ExprKind

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fn clone(&self) -> Self

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 ExprKind

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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 PartialEq for ExprKind

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fn eq(&self, other: &Self) -> 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 ExprKind

Auto Trait Implementations§

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> Same for T

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type Output = T

Should always be Self
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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.