Method collectVars

dql/parser.go:791–822

(v *Vars)

}

func (gq *GraphQuery) collectVars(v *Vars) {
	if gq.Var != "" {
		v.Defines = append(v.Defines, gq.Var)
	}
	if gq.FacetVar != nil {
		for _, va := range gq.FacetVar {
			v.Defines = append(v.Defines, va)
		}
	}
	for _, va := range gq.NeedsVar {
		v.Needs = append(v.Needs, va.Name)
	}

	for _, ch := range gq.Children {
		ch.collectVars(v)
	}
	if gq.Filter != nil {
		gq.Filter.collectVars(v)
	}
	if gq.MathExp != nil {
		gq.MathExp.collectVars(v)
	}

	shortestPathFrom := gq.ShortestPathArgs.From
	if shortestPathFrom != nil && len(shortestPathFrom.NeedsVar) > 0 {
		v.Needs = append(v.Needs, shortestPathFrom.NeedsVar[0].Name)
	}
	shortestPathTo := gq.ShortestPathArgs.To
	if shortestPathTo != nil && len(shortestPathTo.NeedsVar) > 0 {
		v.Needs = append(v.Needs, shortestPathTo.NeedsVar[0].Name)
	}
}

func (f *MathTree) collectVars(v *Vars) {
	if f == nil {