Trait VariableMap

pub trait VariableMap {
    // Required method
    fn lookup(&self, varname: &str) -> Option<Value<'_>>;
}

Resolve variables by name.

Required Methods

fn lookup(&self, varname: &str) -> Option<Value<'_>>

Get the value of the variable varname, or return None for an unknown variable name.

Implementations on Foreign Types

impl VariableMap for ()

fn lookup(&self, _: &str) -> Option<Value<'_>>

Implementors