[Question] How to map operation variables to their uses? about graphql-core HOT 2 CLOSED

def _evaluate_variable_uses(
    type_info: OperationTypeInfo,
    field: QtGqlFieldDefinition,
    arguments: tuple[gql_lang.ArgumentNode, ...],
) -> list[QtGqlVariableUse]:
    ret: list[QtGqlVariableUse] = []
    for arg in arguments:
        index = field.index_for_argument(arg.name.value)
        var_name = arg.value.name.value  # type: ignore[attr-defined]
        for variable in type_info.variables:
            if var_name == variable.name:
                ret.append(
                    QtGqlVariableUse(argument=(index, field.arguments[index]), variable=variable),
                )
    assert len(ret) == len(arguments), "could not find all variable uses"
    return ret


def _evaluate_variable_node_type(
    type_info: SchemaTypeInfo,
    node: graphql.TypeNode,
) -> QtGqlTypeABC:
    if nonnull := is_nonnull_node(node):
        return evaluate_graphql_type(
            type_info,
            graphql.type.GraphQLNonNull(
                type_info.schema_definition.get_type(nonnull.type.name.value),  # type: ignore
            ),
        )

    if named_type := is_named_type_node(node):
        gql_concrete = type_info.schema_definition.get_type(named_type.name.value)
        assert gql_concrete
        return evaluate_graphql_type(type_info, gql_concrete)
    raise NotImplementedError(node, "Type is not supported as a variable ATM")