Expr

Enum Expr 

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pub enum Expr {
Show 14 variants Number(f64), BigInteger(String), String(String), Boolean(bool), Null, Identifier(String), Binary { left: Box<Expr>, op: BinOp, right: Box<Expr>, }, Unary { op: UnaryOp, expr: Box<Expr>, }, Call { func: Box<Expr>, args: Vec<Expr>, }, Array(Vec<Expr>), Dict(Vec<(String, Expr)>), Index { object: Box<Expr>, index: Box<Expr>, }, If { condition: Box<Expr>, then_branch: Vec<Stmt>, elif_branches: Vec<(Expr, Vec<Stmt>)>, else_branch: Option<Vec<Stmt>>, }, Lambda { params: Vec<String>, body: Vec<Stmt>, },
}
Expand description

Expressions - things that evaluate to values

Variants§

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Number(f64)

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BigInteger(String)

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String(String)

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Boolean(bool)

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Null

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Identifier(String)

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Binary

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§left: Box<Expr>
§right: Box<Expr>
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Unary

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§expr: Box<Expr>
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Call

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§func: Box<Expr>
§args: Vec<Expr>
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Array(Vec<Expr>)

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Dict(Vec<(String, Expr)>)

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Index

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

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§condition: Box<Expr>
§then_branch: Vec<Stmt>
§elif_branches: Vec<(Expr, Vec<Stmt>)>
§else_branch: Option<Vec<Stmt>>
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Lambda

Fields

§params: Vec<String>
§body: Vec<Stmt>

Implementations§

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impl Expr

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pub fn binary(left: Expr, op: BinOp, right: Expr) -> Self

Helper to create a binary expression

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pub fn unary(op: UnaryOp, expr: Expr) -> Self

Helper to create a unary expression

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pub fn call(func: Expr, args: Vec<Expr>) -> Self

Helper to create a function call

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pub fn index(object: Expr, index: Expr) -> Self

Helper to create an index expression

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
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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 PartialEq for Expr

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl StructuralPartialEq for Expr

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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 UnwindSafe for Expr

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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 = Infallible

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

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.