Function mathCopy

query/query.go:441–456

(dst *mathTree, src *dql.MathTree)

}

func mathCopy(dst *mathTree, src *dql.MathTree) error {
	// Either we'll have an operation specified, or the function specified.
	dst.Const = src.Const
	dst.Fn = src.Fn
	dst.Val = src.Val
	dst.Var = src.Var

	for _, mc := range src.Child {
		child := &mathTree{}
		if err := mathCopy(child, mc); err != nil {
			return err
		}
		dst.Child = append(dst.Child, child)
	}
	return nil
}

func filterCopy(sg *SubGraph, ft *dql.FilterTree) error {
	// Either we'll have an operation specified, or the function specified.