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package dotty.tools.dottydoc
package model
import comment._
import dotty.tools.dotc
import dotc.core.Types._
import dotc.core.Flags
import dotc.core.Contexts.Context
import dotc.core.Symbols.Symbol
import dotty.tools.dotc.core.SymDenotations._
import dotty.tools.dotc.core.Names.TypeName
import dotc.core.{ Flags => DottyFlags }
import dotc.ast.Trees._
object factories {
import dotty.tools.dotc.ast.tpd._
import DottyFlags._
type TypeTree = dotty.tools.dotc.ast.Trees.Tree[Type]
def flags(t: Tree)(implicit ctx: Context): List[String] =
(t.symbol.flags & SourceModifierFlags)
.flagStrings.toList
.filter(_ != "<trait>")
.filter(_ != "interface")
def path(sym: Symbol)(implicit ctx: Context): List[String] = sym match {
case sym if sym.name.decode.toString == "<root>" => Nil
case sym if sym is Flags.Module => path(sym.owner) :+ sym.name.decode.toString.dropRight(1)
case sym => path(sym.owner) :+ sym.name.decode.toString
}
private val product = """Product[1-9][0-9]*""".r
private def cleanTitle(title: String): String = title match {
// matches Entity.this.Something
case x if x matches "[^\\[]+\\.this\\..+" => x.split("\\.").last
// Matches Entity[P, ...]
case x if x matches "[^\\[]+\\[[^\\]]+\\]" =>
val Array(tpe, params) = x.dropRight(1).split("\\[")
s"""$tpe[${params.split(",").map(x => cleanTitle(x.trim)).mkString(", ")}]"""
case _ => title
}
private def cleanQuery(query: String): String = query match {
case x if x matches "[^\\[]+\\[[^\\]]+\\]" => x.takeWhile(_ != '[')
case _ => query
}
def returnType(t: Type)(implicit ctx: Context): Reference = {
def typeRef(name: String, query: String = "", params: List[MaterializableLink] = Nil) = {
val realQuery = if (query != "") query else name
TypeReference(name, UnsetLink(name, realQuery), params)
}
def expandTpe(t: Type, params: List[MaterializableLink] = Nil): Reference = t match {
case ref @ RefinedType(parent, rn) => {
val paramName = (ref.refinedInfo match {
case ta: TypeAlias if ta.alias.isInstanceOf[NamedType] =>
ta.alias.asInstanceOf[NamedType].name.show
case _ => rn.show
}).split("\\$").last
val param = UnsetLink(paramName, paramName)
expandTpe(parent, param :: params)
}
case TypeRef(_, n) =>
val name = n.decode.toString.split("\\$").last
typeRef(name, params = params)
case OrType(left, right) =>
OrTypeReference(expandTpe(left), expandTpe(right))
case AndType(left, right) =>
AndTypeReference(expandTpe(left), expandTpe(right))
case AnnotatedType(tpe, _) =>
expandTpe(tpe)
case ExprType(tpe) =>
expandTpe(tpe)
case c: ConstantType =>
ConstantReference(c.show)
case tt: ThisType =>
expandTpe(tt.underlying)
case ci: ClassInfo =>
typeRef(ci.cls.show)
case ta: TypeAlias =>
expandTpe(ta.alias.widenDealias)
case mt: MethodType =>
expandTpe(mt.resultType)
case pt: PolyType =>
expandTpe(pt.resultType)
case pp: PolyParam =>
val paramName = pp.paramName.show
val name =
if (paramName.contains('$'))
paramName.split("\\$\\$").last
else paramName
typeRef(name)
}
expandTpe(t)
}
def typeParams(sym: Symbol)(implicit ctx: Context): List[String] =
sym.denot.info match {
case pt: PolyType =>
pt.paramNames.map(_.show.split("\\$").last)
case _ => Nil
}
def paramLists(tpe: Type)(implicit ctx: Context): List[List[NamedReference]] = tpe match {
case pt: PolyType =>
paramLists(pt.resultType)
case mt: MethodType =>
mt.paramNames.zip(mt.paramTypes).map { case (name, tpe) =>
NamedReference(name.decode.toString, returnType(tpe))
} :: paramLists(mt.resultType)
case annot: AnnotatedType => paramLists(annot.tpe)
case (_: PolyParam | _: RefinedType | _: TypeRef | _: ThisType |
_: ExprType | _: OrType | _: AndType) => Nil // return types should not be in the paramlist
}
def superTypes(t: Tree)(implicit ctx: Context): List[MaterializableLink] = t.symbol.denot match {
case cd: ClassDenotation =>
def isJavaLangObject(prefix: Type): Boolean =
prefix match {
case TypeRef(ThisType(TypeRef(NoPrefix, outerName)), innerName) =>
outerName.toString == "lang" && innerName.toString == "Object"
case _ => false
}
def isProductWithArity(prefix: Type): Boolean = prefix match {
case TypeRef(TermRef(TermRef(NoPrefix, root), scala), prod) =>
root.toString == "_root_" &&
scala.toString == "scala" &&
product.findFirstIn(prod.toString).isDefined
case _ => false
}
cd.classParents.collect {
case t: TypeRef if !isJavaLangObject(t) && !isProductWithArity(t) =>
UnsetLink(t.name.toString, path(t.symbol).mkString("."))
}
case _ => Nil
}
}
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