Enum num_parser::Expression

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pub enum Expression {
    Binary(Box<Expression>, TokenType, Box<Expression>),
    Unary(TokenType, Box<Expression>),
    Var(String),
    Func(String, Vec<Box<Expression>>),
    Literal(Value),
    Union(Vec<Box<Expression>>),
}

Expand description

Every expression variant.

Variants

`Binary(Box<Expression>, TokenType, Box<Expression>)`

A binary operation between two expression.

`Unary(TokenType, Box<Expression>)`

An unary operation to an expression.

`Var(String)`

A variable.

`Func(String, Vec<Box<Expression>>)`

A function call and its parameters.

`Literal(Value)`

A literal value.

`Union(Vec<Box<Expression>>)`

A union of values.

Implementations

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impl Expression

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pub fn eval(
 &self,
 context: &Context,
 scope: Option<&Context>,
 depth: u32
) -> EvalResult<Value>

Trait Implementations

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impl Clone for Expression

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fn clone(&self) -> Expression

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

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impl Debug for Expression

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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<Expression> for Expression

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

This method tests for self and other values to be equal, and is used by ==. Read more

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

This method tests for !=.

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impl StructuralPartialEq for Expression

Auto Trait Implementations

impl RefUnwindSafe for Expression

impl Send for Expression

impl Sync for Expression

impl Unpin for Expression

impl UnwindSafe for Expression

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)

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.

Enum num_parser::Expression

Variants

Binary(Box<Expression>, TokenType, Box<Expression>)

Unary(TokenType, Box<Expression>)

Var(String)

Func(String, Vec<Box<Expression>>)

Literal(Value)

Union(Vec<Box<Expression>>)

Implementations

impl Expression

pub fn eval( &self, context: &Context, scope: Option<&Context>, depth: u32) -> EvalResult<Value>

Trait Implementations

impl Clone for Expression

fn clone(&self) -> Expression

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

impl Debug for Expression

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

impl PartialEq<Expression> for Expression

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

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

impl StructuralPartialEq for Expression

Auto Trait Implementations

impl RefUnwindSafe for Expression

impl Send for Expression

impl Sync for Expression

impl Unpin for Expression

impl UnwindSafe for Expression

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<V, T> VZip<V> for T where V: MultiLane<T>,

fn vzip(self) -> V

`Binary(Box<Expression>, TokenType, Box<Expression>)`

`Unary(TokenType, Box<Expression>)`

`Var(String)`

`Func(String, Vec<Box<Expression>>)`

`Literal(Value)`

`Union(Vec<Box<Expression>>)`

pub fn eval(
&self,
context: &Context,
scope: Option<&Context>,
depth: u32
) -> EvalResult<Value>

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>,

impl<V, T> VZip<V> for T where
V: MultiLane<T>,