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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,154 @@ | ||
| import mainargs.{ParserForMethods, main} | ||
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| sealed abstract class Trait(val name: String) | ||
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| object Trivial extends Trait("TrivialIR") | ||
| object BaseRef extends Trait("BaseRef") | ||
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| case class NChildren(static: Int = 0, dynamic: String = "") { | ||
| def +(other: NChildren): NChildren = NChildren( | ||
| static = static + other.static, | ||
| dynamic = if (dynamic.isEmpty) other.dynamic else s"$dynamic + ${other.dynamic}", | ||
| ) | ||
| } | ||
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| sealed abstract class AttOrChild { | ||
| val name: String | ||
| def generateDeclaration: String | ||
| def constraints: Seq[String] = Seq.empty | ||
| def nChildren: NChildren = NChildren() | ||
| } | ||
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| final case class Att(name: String, typ: String, isVar: Boolean = false) extends AttOrChild { | ||
| override def generateDeclaration: String = s"${if (isVar) "var " else ""}$name: $typ" | ||
| } | ||
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| final case class Child(name: String) extends AttOrChild { | ||
| override def generateDeclaration: String = s"$name: IR" | ||
| override def nChildren: NChildren = NChildren(static = 1) | ||
| } | ||
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| final case class ChildPlus(name: String) extends AttOrChild { | ||
| override def generateDeclaration: String = s"$name: IndexedSeq[IR]" | ||
| override def constraints: Seq[String] = Seq(s"$name.nonEmpty") | ||
| override def nChildren: NChildren = NChildren(dynamic = "name.size") | ||
| } | ||
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| final case class ChildStar(name: String) extends AttOrChild { | ||
| override def generateDeclaration: String = s"$name: IndexedSeq[IR]" | ||
| override def nChildren: NChildren = NChildren(dynamic = "name.size") | ||
| } | ||
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| case class IR( | ||
| name: String, | ||
| attsAndChildren: Seq[AttOrChild], | ||
| traits: Seq[Trait] = Seq.empty, | ||
| extraMethods: Seq[String] = Seq.empty, | ||
| applyMethods: Seq[String] = Seq.empty, | ||
| docstring: String = "", | ||
| ) { | ||
| def withTraits(newTraits: Trait*): IR = copy(traits = traits ++ newTraits) | ||
| def withMethod(methodDef: String): IR = copy(extraMethods = extraMethods :+ methodDef) | ||
| def withApply(methodDef: String): IR = copy(applyMethods = applyMethods :+ methodDef) | ||
| def withDocstring(docstring: String): IR = copy(docstring = docstring) | ||
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| private def nChildren: NChildren = attsAndChildren.foldLeft(NChildren())(_ + _.nChildren) | ||
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| private def children: String = { | ||
| val tmp = attsAndChildren.flatMap { | ||
| case _: Att => None | ||
| case c: Child => Some(s"FastSeq(${c.name})") | ||
| case cs: ChildPlus => Some(cs.name) | ||
| case cs: ChildStar => Some(cs.name) | ||
| } | ||
| if (tmp.isEmpty) "FastSeq.empty" else tmp.mkString(" ++ ") | ||
| } | ||
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| private def paramList = s"$name(${attsAndChildren.map(_.generateDeclaration).mkString(", ")})" | ||
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| private def classDecl = | ||
| s"final case class $paramList extends IR" + traits.map(" with " + _.name).mkString | ||
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| private def classBody = { | ||
| val extraMethods = | ||
| this.extraMethods :+ s"override lazy val childrenSeq: IndexedSeq[IR] = $children" | ||
| val constraints = attsAndChildren.flatMap(_.constraints) | ||
| if (constraints.nonEmpty || extraMethods.nonEmpty) { | ||
| ( | ||
| " {" + | ||
| (if (constraints.nonEmpty) | ||
| constraints.map(c => s" require($c)").mkString("\n", "\n", "\n") | ||
| else "") | ||
| + ( | ||
| if (extraMethods.nonEmpty) | ||
| extraMethods.map(" " + _).mkString("\n", "\n", "\n") | ||
| else "" | ||
| ) | ||
| + "}" | ||
| ) | ||
| } else "" | ||
| } | ||
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| private def classDef = | ||
| (if (docstring.nonEmpty) s"\n// $docstring\n" else "") + classDecl + classBody | ||
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| private def companionBody = applyMethods.map(" " + _).mkString("\n") | ||
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| private def companionDef = | ||
| if (companionBody.isEmpty) "" else s"object $name {\n$companionBody\n}\n" | ||
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| def generateDef: String = companionDef + classDef + "\n" | ||
| } | ||
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| object Main { | ||
| def node(name: String, attsAndChildren: AttOrChild*): IR = IR(name, attsAndChildren) | ||
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| def allNodes: Seq[IR] = { | ||
| val r = Seq.newBuilder[IR] | ||
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| r += node("I32", Att("x", "Int")).withTraits(Trivial) | ||
| r += node("I64", Att("x", "Long")).withTraits(Trivial) | ||
| r += node("F32", Att("x", "Float")).withTraits(Trivial) | ||
| r += node("F64", Att("x", "Double")).withTraits(Trivial) | ||
| r += node("Str", Att("x", "String")).withTraits(Trivial) | ||
| .withMethod( | ||
| "override def toString(): String = s\"\"\"Str(\"${StringEscapeUtils.escapeString(x)}\")\"\"\"" | ||
| ) | ||
| r += node("True").withTraits(Trivial) | ||
| r += node("False").withTraits(Trivial) | ||
| r += node("Void").withTraits(Trivial) | ||
| r += node("NA", Att("_typ", "Type")).withTraits(Trivial) | ||
| r += node("UUID4", Att("id", "String")) | ||
| .withDocstring( | ||
| "WARNING! This node can only be used when trying to append a one-off, " | ||
| + "random string that will not be reused elsewhere in the pipeline. " | ||
| + "Any other uses will need to write and then read again; this node is non-deterministic " | ||
| + "and will not e.g. exhibit the correct semantics when self-joining on streams." | ||
| ) | ||
| .withApply("def apply(): UUID4 = UUID4(genUID())") | ||
| r += node("Cast", Child("v"), Att("_typ", "Type")) | ||
| r += node("CastRename", Child("v"), Att("_typ", "Type")) | ||
| r += node("IsNA", Child("value")) | ||
| r += node("Coalesce", ChildPlus("values")) | ||
| r += node("Consume", Child("value")) | ||
| r += node("If", Child("cond"), Child("cnsq"), Child("altr")) | ||
| r += node("Switch", Child("x"), Child("default"), ChildStar("cases")) | ||
| .withMethod("override lazy val size: Int = 2 + cases.length") | ||
| r += IR("Ref", Seq(Att("name", "Name"), Att("_typ", "Type", isVar = true))) | ||
| .withTraits(BaseRef) | ||
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| r.result() | ||
| } | ||
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| @main | ||
| def main(path: String) = { | ||
| val pack = "package is.hail.expr.ir" | ||
| val imports = Seq("is.hail.types.virtual.Type", "is.hail.utils.{FastSeq, StringEscapeUtils}") | ||
| val gen = pack + "\n\n" + imports.map(i => s"import $i").mkString("\n") + "\n\n" + allNodes.map( | ||
| _.generateDef | ||
| ).mkString("\n") | ||
| os.write(os.Path(path) / "IR_gen.scala", gen) | ||
| } | ||
|
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| def main(args: Array[String]): Unit = ParserForMethods(this).runOrExit(args) | ||
| } |
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