Scala域特定语言抛出错误

Question

我正尝试在我的域特定语言中包含以下代码段：

val Layer1WTAconnection: ConnectionRef = layer1.connectTo( layer1, new FullConnection( () => new InhibitorySynapse ) )

通过使用相同的样式导入所有库，并且一切正常，我在DSL中编写了以下代码行：

val a: N2S3ConnectionReferences = new N2S3ConnectionReferences
val b: ConnectionRef = a.ConnectionRef_Generator("group_1","group_1")

上面的行引发错误。

ConnectionRef文件包含以下代码段：

class ConnectionRef(from: NeuronGroupRef, to: NeuronGroupRef, connectionType: ConnectionPolicy) {

  var deployed = false
  def isDeployed: Boolean = this.deployed
  var connections : ConnectionSet = _

  def ensureDeployed(n2s3: N2S3): Unit = {
    if (!this.isDeployed){
      deployed = true
      this.deploy(n2s3)
    }
  }
  def deploy(n2s3: N2S3): Unit = {
    println("Create connections from "+from.getIdentifier+" to "+to.getIdentifier)
    connections = connectionType.create(from, to)
  }
  def disconnect() : Unit = {
    assert(connections != null, "connection already disconnected")
    connections.disconnect()
    connections = null
  }
  def connects(aNeuron: NeuronRef, anotherNeuron: NeuronRef): Boolean = {
    (aNeuron.group == from) & (anotherNeuron.group == to) & connectionType.connects(aNeuron, anotherNeuron)
  }
}

但是它总是抛出错误。谁能帮忙。如果您想了解更多详细信息，请发表评论。 我为DSL定义的是：

class N2S3ConnectionReferences {
  def ConnectionRef_Generator (id1: String, id2: String)(implicit network: N2S3SimulationDSL): ConnectionRef = {
    network.getNeuronGroupRef( id1 ).connectTo( network.getNeuronGroupRef( id2 ), new FullConnection( () => new InhibitorySynapse ) )
  }
}