pub enum ExprAST {
    Number(f64),
    Variable(String),
    Binary(charBox<ExprAST>, Box<ExprAST>),
    Call(StringVec<ExprAST>),
    If {
        cond: Box<ExprAST>,
        then: Box<ExprAST>,
        else_: Box<ExprAST>,
    },
    For {
        var: String,
        start: Box<ExprAST>,
        end: Box<ExprAST>,
        step: Option<Box<ExprAST>>,
        body: Box<ExprAST>,
    },
}

Variants

Number(f64)

Number - Expression class for numeric literals like “1.0”.

Variable(String)

Variable - Expression class for referencing a variable, like “a”.

Binary(charBox<ExprAST>, Box<ExprAST>)

Binary - Expression class for a binary operator.

Call(StringVec<ExprAST>)

Call - Expression class for function calls.

If

Fields

cond: Box<ExprAST>
then: Box<ExprAST>
else_: Box<ExprAST>

If - Expression class for if/then/else.

For

Fields

var: String
start: Box<ExprAST>
end: Box<ExprAST>
step: Option<Box<ExprAST>>
body: Box<ExprAST>

ForExprAST - Expression class for for/in.

Trait Implementations

Formats the value using the given formatter. Read more

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

This method tests for !=.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.