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package dotty.tools
package dottydoc
package core
/** Dotty and Dottydoc imports */
import dotc.ast.Trees._
import dotc.CompilationUnit
import dotc.config.Printers.dottydoc
import dotc.core.Contexts.Context
import dotc.core.Phases.Phase
import dotc.core.Symbols.Symbol
object Phases {
class DocPhase extends Phase {
import model.CommentParsers.WikiParser
import model._
import model.factories._
import model.internal._
import model.comment.Comment
import dotty.tools.dotc.core.Flags
import dotty.tools.dotc.ast.tpd._
import util.traversing._
import util.internal.setters._
def phaseName = "docphase"
private[this] val commentParser = new WikiParser
/** Saves the commentParser function for later evaluation, for when the AST has been filled */
def track(symbol: Symbol, ctx: Context)(op: => Entity) = {
val entity = op
if (entity != NonEntity)
commentParser += (entity, symbol, ctx)
entity
}
/** Build documentation hierarchy from existing tree */
def collect(tree: Tree, prev: List[String] = Nil)(implicit ctx: Context): Entity = track(tree.symbol, ctx) {
def collectList(xs: List[Tree], ps: List[String])(implicit ctx: Context): List[Entity] =
xs.map(collect(_, ps)).filter(_ != NonEntity)
def collectEntityMembers(xs: List[Tree], ps: List[String])(implicit ctx: Context) =
collectList(xs, ps).asInstanceOf[List[Entity with Members]]
def collectMembers(tree: Tree, ps: List[String] = prev)(implicit ctx: Context): List[Entity] = tree match {
case t: Template => collectList(t.body, ps)
case _ => Nil
}
tree match {
/** package */
case pd @ PackageDef(pid, st) =>
val newPath = prev :+ pid.name.toString
addEntity(PackageImpl(newPath.mkString("."), collectEntityMembers(st, newPath), newPath))
/** trait */
case t @ TypeDef(n, rhs) if t.symbol.is(Flags.Trait) =>
val name = filteredName(n.toString)
val newPath = prev :+ name
TraitImpl(name, collectMembers(rhs), flags(t), newPath)
/** objects, on the format "Object$" so drop the last letter */
case o @ TypeDef(n, rhs) if o.symbol.is(Flags.Module) =>
val name = filteredName(n.toString.dropRight(1))
ObjectImpl(name, collectMembers(rhs, prev :+ name), flags(o), prev :+ (name + "$"))
/** class / case class */
case c @ TypeDef(n, rhs) if c.symbol.isClass =>
val name = filteredName(n.toString)
val newPath = prev :+ name
(name, collectMembers(rhs), flags(c), newPath, None) match {
case x if c.symbol.is(Flags.CaseClass) => CaseClassImpl.tupled(x)
case x => ClassImpl.tupled(x)
}
/** def */
case d: DefDef =>
DefImpl(filteredName(d.name.toString), flags(d), path(d), returnType(d.tpt))
/** val */
case v: ValDef if !v.symbol.is(Flags.ModuleVal) =>
ValImpl(filteredName(v.name.toString), flags(v), path(v), returnType(v.tpt))
case x => {
//dottydoc.println(s"Found unwanted entity: $x (${x.pos},\n${x.show}")
NonEntity
}
}
}
var packages: Map[String, Package] = Map.empty
def addEntity(p: Package): Package = {
def mergedChildren(x1s: List[Entity], x2s: List[Entity]): List[Entity] = {
val (packs1, others1) = x1s.partition(_.kind == "package")
val (packs2, others2) = x2s.partition(_.kind == "package")
val others = others1 ::: others2
val packs = (packs1 ::: packs2).groupBy(_.path).map(_._2.head)
(others ++ packs).sortBy(_.name)
}
val path = p.path.mkString(".")
val newPack = packages.get(path).map {
case ex: PackageImpl =>
if (!ex.comment.isDefined) ex.comment = p.comment
ex.members = mergedChildren(ex.members, p.members)
ex
}.getOrElse(p)
packages = packages + (path -> newPack)
newPack
}
private[this] var totalRuns = 0
private[this] var currentRun = 0
override def run(implicit ctx: Context): Unit = {
currentRun += 1
println(s"Compiling ($currentRun/$totalRuns): ${ctx.compilationUnit.source.file.name}")
collect(ctx.compilationUnit.tpdTree) // Will put packages in `packages` var
}
override def runOn(units: List[CompilationUnit])(implicit ctx: Context): List[CompilationUnit] = {
// (1) Create package structure for all `units`, this will give us a complete structure
totalRuns = units.length
val compUnits = super.runOn(units)
// (2) Set parents of entities, needed for linking
for {
parent <- packages.values
child <- parent.children
} setParent(child, to = parent)
// (3) Create documentation template from docstrings, with internal links
println("Generating documentation, this might take a while...")
commentParser.parse(packages)
// (4) Write the finished model to JSON
val outputDir = {
val out = ctx.settings.DocOutput.value
if (out.last == '/') out.dropRight(1)
else out
}
assert(outputDir == "../js/out")
if (!ctx.settings.YDocNoWrite.value) util.IndexWriters.writeJs(packages, outputDir)
// (5) Clear caches
commentParser.clear()
// Return super's result
compUnits
}
}
}
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