Method expandFragments

dql/parser.go:266–291

(fmap fragmentMap)

}

func (gq *GraphQuery) expandFragments(fmap fragmentMap) error {
	// We have to make a copy of children to preserve order and replace
	// fragment references with fragment content. The copy is newChildren.
	var newChildren []*GraphQuery
	// Expand non-fragments. Do not append to gq.Children.
	for _, child := range gq.Children {
		if child.isFragment() {
			fname := child.fragment // Name of fragment being referenced.
			fchild := fmap[fname]
			if fchild == nil {
				return errors.Errorf("Missing fragment: %s", fname)
			}
			if err := fchild.expand(fmap); err != nil {
				return err
			}
			newChildren = append(newChildren, fchild.Gq.Children...)
		} else {
			if err := child.expandFragments(fmap); err != nil {
				return err
			}
			newChildren = append(newChildren, child)
		}
	}
	gq.Children = newChildren
	return nil
}

func convertToVarMap(variables map[string]string) (vm varMap) {
	vm = make(map[string]varInfo)