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diplomacy: add the new Splitter node type

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Wesley W. Terpstra 2017-05-19 14:34:54 -07:00
parent c695237050
commit 0a2a93c27d
1 changed files with 39 additions and 0 deletions
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39
src/main/scala/diplomacy/Nodes.scala
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@ -339,6 +339,45 @@ class NexusNode[D, U, EO, EI, B <: Data](imp: NodeImp[D, U, EO, EI, B])(
numPI: Range.Inclusive = 1 to 999)
extends MixedNexusNode[D, U, EI, B, D, U, EO, B](imp, imp)(dFn, uFn, numPO, numPI)
case class SplitterArg[T](newSize: Int, ports: Seq[T])
class MixedSplitterNode[DI, UI, EI, BI <: Data, DO, UO, EO, BO <: Data](
inner: InwardNodeImp [DI, UI, EI, BI],
outer: OutwardNodeImp[DO, UO, EO, BO])(
dFn: SplitterArg[DI] => Seq[DO],
uFn: SplitterArg[UO] => Seq[UI],
numPO: Range.Inclusive = 1 to 999,
numPI: Range.Inclusive = 1 to 999)
extends MixedNode(inner, outer)(numPO, numPI)
{
override val externalIn: Boolean = true
override val externalOut: Boolean = true
protected[diplomacy] def resolveStar(iKnown: Int, oKnown: Int, iStars: Int, oStars: Int): (Int, Int) = {
require (oKnown == 0, s"${name} (a splitter) appears right of a := or :*=; use a :=* instead${lazyModule.line}")
require (iStars == 0, s"${name} (a splitter) cannot appear left of a :*=; did you mean :=*?${lazyModule.line}")
(0, iKnown)
}
protected[diplomacy] def mapParamsD(n: Int, p: Seq[DI]): Seq[DO] = {
require (p.size == 0 || n % p.size == 0, s"Diplomacy bug; splitter inputs do not divide outputs")
val out = dFn(SplitterArg(n, p))
require (out.size == n, s"${name} created the wrong number of outputs from inputs${lazyModule.line}")
out
}
protected[diplomacy] def mapParamsU(n: Int, p: Seq[UO]): Seq[UI] = {
require (n == 0 || p.size % n == 0, s"Diplomacy bug; splitter outputs indivisable by inputs")
val out = uFn(SplitterArg(n, p))
require (out.size == n, s"${name} created the wrong number of inputs from outputs${lazyModule.line}")
out
}
}
class SplitterNode[D, U, EO, EI, B <: Data](imp: NodeImp[D, U, EO, EI, B])(
dFn: SplitterArg[D] => Seq[D],
uFn: SplitterArg[U] => Seq[U],
numPO: Range.Inclusive = 1 to 999,
numPI: Range.Inclusive = 1 to 999)
extends MixedSplitterNode[D, U, EI, B, D, U, EO, B](imp, imp)(dFn, uFn, numPO, numPI)
class IdentityNode[D, U, EO, EI, B <: Data](imp: NodeImp[D, U, EO, EI, B])
extends AdapterNode(imp)({s => s}, {s => s})