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package test
import dotty.tools.dotc.core._
import dotty.tools.dotc.core.Contexts._
import dotty.tools.dotc.core.Symbols._
import dotty.tools.dotc.core.Flags._
import dotty.tools.dotc.core.Types._
import dotty.tools.dotc.printing.Texts._
import NameOps._
import dotty.tools.dotc.core.Decorators._
import org.junit.Test
class ShowClassTests extends DottyTest {
private val blackList = List(
// the following classes cannot be read correctly because they
// contain illegally pickled @throws annotations
"scala.actors.remote.Proxy",
"scala.actors.remote.Serializer",
"scala.actors.remote.JavaSerializer",
"scala.build.genprod",
"scala.tools.nsc.symtab.classfile.AbstractFileReader",
"scala.remoting.Channel",
"scala.runtime.remoting.RegistryDelegate",
"scala.concurrent.Future",
"scala.concurrent.impl.Future",
"scala.concurrent.Await",
"scala.concurrent.Awaitable",
"scala.concurrent.impl.Promise",
// the following packages and classes cannot be read because
// they refer to external libraries which are not available
// (apache.ant, usually)
"scala.tools.ant",
"scala.tools.partest.PartestTask",
"dotty.tools.dotc.core.pickling.AbstractFileReader")
def doTwice(test: Context => Unit)(implicit ctx: Context): Unit = {
test(ctx.fresh.withSetting(ctx.base.settings.debug, true))
test(ctx.fresh.withSetting(ctx.base.settings.debug, false))
}
def showPackage(pkg: TermSymbol)(implicit ctx: Context): Unit = {
val path = pkg.fullName.toString
if (blackList contains path)
println(s"blacklisted package: $path")
else {
for (
sym <- pkg.info.decls if sym.owner == pkg.moduleClass && !(sym.name contains '$')
) {
println(s"showing $sym in ${pkg.fullName}")
if (sym is Package) showPackage(sym.asTerm)
else if (sym.isClass) showClass(sym)
else if (sym is Module) showClass(sym.moduleClass)
}
}
}
def showPackage(path: String)(implicit ctx: Context): Unit = doTwice { implicit ctx =>
showPackage(ctx.requiredPackage(path))
}
def showClass(cls: Symbol)(implicit ctx: Context) = {
val path = cls.fullName.stripModuleClassSuffix.toString
if (blackList contains path)
println(s"blacklisted: $path")
else {
println(s"showing $path -> ${cls.denot}")
val cinfo = cls.info
val infoText: Text = if (cinfo.exists) cinfo.toText else " is missing"
println("======================================")
println((cls.toText ~ infoText).show)
}
}
def showClasses(path: String)(implicit ctx: Context): Unit = doTwice { implicit ctx =>
println(s"showing file $path")
val cls = ctx.requiredClass(path.toTypeName)
showClass(cls)
showClass(cls.linkedClass)
}
@Test
def loadSimpleClasses() = {
showClasses("scala.Array")
showClasses("scala.math.Ordering")
}
@Test
def loadJavaClasses() = {
showPackage("scala.tools.jline")
}
@Test
def loadMoreClasses() = {
showClasses("scala.collection.JavaConversions")
showClasses("scala.collection.convert.Wrappers")
showClasses("scala.collection.mutable.WeakHashMap")
showClasses("scala.collection.GenIterable")
showClasses("scala.collection.Traversable")
showClasses("scala.collection.LinearSeqLike")
showClasses("scala.collection.immutable.List")
showClasses("scala.collection.convert.Wrappers")
showClasses("scala.collection.generic.package")
showClasses("scala.collection.MapLike")
showClasses("scala.Function1")
}
@Test
def loadScalaReflect() = {
showPackage(ctx.requiredPackage("scala.reflect"))
}
@Test
def loadScalaCollection() = {
showPackage(ctx.requiredPackage("scala.collection"))
}
@Test
def loadClassWithPrivateInnerAndSubSelf() = {
showClasses("scala.tools.nsc.settings.ScalaSettings")
showClasses("scala.tools.jline.console.history.MemoryHistory")
}
@Test
def loadDotty() = {
showPackage("dotty")
}
@Test
def showReflectAliases() = { // tests for cycles during findMember
showClasses("scala.reflect.macros.runtime.Aliases")
}
}
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