sourceafPlastic::PlasticUsingModel.fan

** Models a Fantom 'using' statement.
class PlasticUsingModel {

    Str? usingStr
    
    new makeFromPod(Pod pod) {
        this.usingStr = pod.name        
    }

    new makeFromType(Type type, Str? usingAs := null) {
        this.usingStr = type.qname
        if (usingAs != null)
            this.usingStr += " as ${usingAs}"
    }

    new makeFromStr(Str usingStr) {
        if (usingStr.trim.lower.startsWith("using "))
            throw PlasticErr("UsingStr '${usingStr}' must not start with 'using'")
        this.usingStr = usingStr
    }
    
    Str toFantomCode() {
        "using ${usingStr}\n"
    }
    
    @NoDoc
    override Str toStr() {
        toFantomCode
    }

    @NoDoc
    override Bool equals(Obj? that) {
        (that as PlasticUsingModel)?.usingStr?.lower == usingStr.lower
    }

    @NoDoc
    override Int hash() {
        usingStr.lower.hash
    }
}