Function get_eval_context

src/jinja2/nodes.py:94–102

(node: "Node", ctx: t.Optional[EvalContext])

def get_eval_context(node: "Node", ctx: t.Optional[EvalContext]) -> EvalContext:
    if ctx is None:
        if node.environment is None:
            raise RuntimeError(
                "if no eval context is passed, the node must have an"
                " attached environment."
            )
        return EvalContext(node.environment)
    return ctx


class Node(metaclass=NodeType):