Enum SurfaceField 

pub enum SurfaceField {
    Symbol(Symbol),
    Str(String),
    Symbols(Vec<Symbol>),
    Strs(Vec<String>),
    Bool(bool),
    U64(u64),
    Expr(Expr),
}

A typed card field value.

Variants

Symbol(Symbol)

A symbol value.

Str(String)

A string value.

Symbols(Vec<Symbol>)

A list-of-symbols value (built as a list of symbol values).

Strs(Vec<String>)

A list-of-strings value (built as a list of string values).

Bool(bool)

A boolean value.

U64(u64)

An unsigned-integer (i64-domain number) value.

Expr(Expr)

An arbitrary expression value.