Enum rustdb::expr::ExprIs

source · [−]
#[non_exhaustive]
pub enum ExprIs {
    Const(Value),
    Local(usize),
    ColName(String),
    Binary(Token, Box<Expr>, Box<Expr>),
    Not(Box<Expr>),
    Minus(Box<Expr>),
    Case(Vec<(Expr, Expr)>, Box<Expr>),
    FuncCall(ObjRef, Vec<Expr>),
    BuiltinCall(String, Vec<Expr>),
    ScalarSelect(Box<SelectExpression>),
    List(Vec<Expr>),
}
Expand description

Scalar Expression variants.

Variants (Non-exhaustive)

This enum is marked as non-exhaustive
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Const(Value)

Local(usize)

ColName(String)

Binary(Token, Box<Expr>, Box<Expr>)

Not(Box<Expr>)

Minus(Box<Expr>)

Case(Vec<(Expr, Expr)>, Box<Expr>)

FuncCall(ObjRef, Vec<Expr>)

BuiltinCall(String, Vec<Expr>)

ScalarSelect(Box<SelectExpression>)

List(Vec<Expr>)

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.