116 lines
4.7 KiB
Scala
116 lines
4.7 KiB
Scala
// See LICENSE.SiFive for license details.
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package diplomacy
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import Chisel._
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import chisel3.internal.sourceinfo.{SourceInfo, SourceLine, UnlocatableSourceInfo}
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abstract class LazyModule
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{
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protected[diplomacy] var bindings = List[() => Unit]()
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protected[diplomacy] var children = List[LazyModule]()
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protected[diplomacy] var nodes = List[BaseNode]()
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protected[diplomacy] var info: SourceInfo = UnlocatableSourceInfo
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protected[diplomacy] val parent = LazyModule.stack.headOption
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LazyModule.stack = this :: LazyModule.stack
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parent.foreach(p => p.children = this :: p.children)
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lazy val className = getClass.getName.split('.').last
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lazy val valName = parent.flatMap { p =>
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p.getClass.getMethods.filter { m =>
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m.getParameterTypes.isEmpty &&
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!java.lang.reflect.Modifier.isStatic(m.getModifiers) &&
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classOf[LazyModule].isAssignableFrom(m.getReturnType) &&
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(m.invoke(p) eq this)
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}.headOption.map(_.getName)
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}
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lazy val outerName = if (nodes.size != 1) None else nodes(0).gco.flatMap(_.lazyModule.valName)
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def moduleName = className + valName.orElse(outerName).map("_" + _).getOrElse("")
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def instanceName = valName.getOrElse(outerName.map(_ + "_").getOrElse("") + className)
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def name = valName.getOrElse(className)
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def line = sourceLine(info)
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def module: LazyModuleImp
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protected[diplomacy] def instantiate() = {
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children.reverse.foreach { c =>
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// !!! fix chisel3 so we can pass the desired sourceInfo
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// implicit val sourceInfo = c.module.outer.info
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Module(c.module)
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}
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bindings.reverse.foreach { f => f () }
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}
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def omitGraphML = nodes.isEmpty && children.isEmpty
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lazy val graphML: String = parent.map(_.graphML).getOrElse {
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val buf = new StringBuilder
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buf ++= "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
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buf ++= "<graphml xmlns=\"http://graphml.graphdrawing.org/xmlns\" xmlns:y=\"http://www.yworks.com/xml/graphml\">\n"
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buf ++= " <key for=\"node\" id=\"n\" yfiles.type=\"nodegraphics\"/>\n"
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buf ++= " <key for=\"edge\" id=\"e\" yfiles.type=\"edgegraphics\"/>\n"
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buf ++= " <graph id=\"G\" edgedefault=\"directed\">\n"
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nodesGraphML(buf, " ")
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edgesGraphML(buf, " ")
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buf ++= " </graph>\n"
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buf ++= "</graphml>\n"
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buf.toString
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}
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private val index = { LazyModule.index = LazyModule.index + 1; LazyModule.index }
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private def nodesGraphML(buf: StringBuilder, pad: String) {
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buf ++= s"""${pad}<node id=\"${index}\">\n"""
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buf ++= s"""${pad} <data key=\"n\"><y:ShapeNode><y:NodeLabel modelName=\"sides\" modelPosition=\"w\" rotationAngle=\"270.0\">${module.instanceName}</y:NodeLabel></y:ShapeNode></data>\n"""
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buf ++= s"""${pad} <graph id=\"${index}::\" edgedefault=\"directed\">\n"""
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nodes.filter(!_.omitGraphML).foreach { n =>
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buf ++= s"""${pad} <node id=\"${index}::${n.index}\"/>\n"""
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}
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children.filter(!_.omitGraphML).foreach { _.nodesGraphML(buf, pad + " ") }
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buf ++= s"""${pad} </graph>\n"""
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buf ++= s"""${pad}</node>\n"""
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}
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private def edgesGraphML(buf: StringBuilder, pad: String) {
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nodes.filter(!_.omitGraphML) foreach { n => n.outputs.filter(!_._1.omitGraphML).foreach { case (o, l) =>
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buf ++= pad
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buf ++= "<edge"
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buf ++= s""" source=\"${index}::${n.index}\""""
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buf ++= s""" target=\"${o.lazyModule.index}::${o.index}\"><data key=\"e\"><y:PolyLineEdge>"""
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buf ++= s"""<y:Arrows source=\"none\" target=\"standard\"/>"""
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buf ++= s"""<y:LineStyle color=\"${o.colour}\" type=\"line\" width=\"1.0\"/>"""
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buf ++= s"""<y:EdgeLabel modelName=\"centered\" rotationAngle=\"270.0\">${l}</y:EdgeLabel>"""
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buf ++= s"""</y:PolyLineEdge></data></edge>\n"""
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} }
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children.filter(!_.omitGraphML).foreach { c => c.edgesGraphML(buf, pad) }
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}
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}
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object LazyModule
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{
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protected[diplomacy] var stack = List[LazyModule]()
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private var index = 0
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def apply[T <: LazyModule](bc: T)(implicit sourceInfo: SourceInfo): T = {
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// Make sure the user put LazyModule around modules in the correct order
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// If this require fails, probably some grandchild was missing a LazyModule
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// ... or you applied LazyModule twice
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require (!stack.isEmpty, s"LazyModule() applied to ${bc.name} twice ${sourceLine(sourceInfo)}")
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require (stack.head eq bc, s"LazyModule() applied to ${bc.name} before ${stack.head.name} ${sourceLine(sourceInfo)}")
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stack = stack.tail
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bc.info = sourceInfo
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bc
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}
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}
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abstract class LazyModuleImp(outer: LazyModule) extends Module
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{
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// .module had better not be accessed while LazyModules are still being built!
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require (LazyModule.stack.isEmpty, s"${outer.name}.module was constructed before LazyModule() was run on ${LazyModule.stack.head.name}")
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override def desiredName = outer.moduleName
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suggestName(outer.instanceName)
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outer.instantiate()
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}
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