Enum FieldRef 

pub enum FieldRef<'a> {
    Node(&'a str),
    Param(&'a str),
    Literal(&'a str),
}

Classify a string field on a node: a node reference, a param reference, or a literal string. The classification is by prefix:

• @name → FieldRef::Node
• $name → FieldRef::Param
• anything else → FieldRef::Literal

Variants

Node(&'a str)

Param(&'a str)

Literal(&'a str)

Implementations

impl<'a> FieldRef<'a>

pub fn classify(s: &'a str) -> Self