Struct OpContext 

pub struct OpContext<'a> {
    pub scope: Scope<'a>,
    pub semantic: &'a BTreeMap<String, SemInstances>,
    pub inputs_status: &'a BTreeMap<String, Result<(), Unresolved>>,
    pub lineage_inputs: &'a [String],
    pub binds: &'a BTreeMap<String, Vec<String>>,
}

What an operator needs at evaluation time besides expression scope.

Fields

scope: Scope<'a>

semantic: &'a BTreeMap<String, SemInstances>

inputs_status: &'a BTreeMap<String, Result<(), Unresolved>>

Status of every declared input.

lineage_inputs: &'a [String]

Input fields in this step’s lineage, named by invalid_input.

binds: &'a BTreeMap<String, Vec<String>>

Each semantic step’s fan-out binds, in instance-key order.