Merge pull request #274 from lrytz/t220

use point positions in comment index

src/main/scala-2.11/com/typesafe/genjavadoc/Comments.scala

@@ -38,7 +38,7 @@ trait Comments extends BaseComments { this: TransformCake =>
           def foundStarComment(start: Int, end: Int) = try {
             val str = docBuffer.toString
             val pos = new RangePosition(unit.source, start, start, end)
-            comments += pos -> Comment(pos, str)
+            comments += pos.point -> Comment(pos, str)
             true
           } finally {
             docBuffer = null

src/main/scala-2.12/com/typesafe/genjavadoc/Comments.scala

@@ -13,7 +13,7 @@ trait Comments extends BaseComments { this: TransformCake =>
       override def newScanner = new parser.ScaladocUnitScanner(unit, Nil) {
         override def registerDocComment(str: String, pos: Position) = {
           super.registerDocComment(str, pos)
-          comments += pos -> Comment(pos, str)
+          comments += pos.point -> Comment(pos, str)
         }
       }
     }.parse()

src/main/scala-2.13/com/typesafe/genjavadoc/Comments.scala

@@ -13,7 +13,7 @@ trait Comments extends BaseComments { this: TransformCake =>
       override def newScanner = new parser.ScaladocUnitScanner(unit, Nil) {
         override def registerDocComment(str: String, pos: Position) = {
           super.registerDocComment(str, pos)
-          comments += pos -> Comment(pos, str)
+          comments += pos.point -> Comment(pos, str)
         }
       }
     }.parse()

src/main/scala/com/typesafe/genjavadoc/BaseComments.scala

@@ -71,13 +71,8 @@ trait BaseComments { this: TransformCake =>
     }
   }
 
-  implicit val positionOrdering: Ordering[Position] = new Ordering[Position] {
-    def compare(a: Position, b: Position) =
-      if (a.end < b.start) -1
-      else if (a.start > b.end) 1
-      else 0
-  }
-  var comments = TreeMap[Position, Comment]()
+  implicit val positionOrdering: Ordering[Position] = Ordering.by(_.point)
+  var comments = TreeMap[Int, Comment]()
 
   // This is overriden in the Scala Version Specific Comments.scala
   protected def parseComments(): Unit

src/main/scala/com/typesafe/genjavadoc/BasicTransform.scala

@@ -1,6 +1,7 @@
 package com.typesafe.genjavadoc
 
 import scala.reflect.internal.Flags
+import scala.reflect.internal.util.Position
 
 trait BasicTransform { this: TransformCake =>
   import global._
@@ -36,7 +37,7 @@ trait BasicTransform { this: TransformCake =>
     try code finally keep = old
   }
 
-  private var pos: Position = rangePos(unit.source, 0, 0, 0)
+  private var pos: Position = Position.offset(unit.source, 0)
 
   private var templateMaxPos: Position = pos
   private var prevTemplateMaxPos: Position = pos
@@ -50,8 +51,8 @@ trait BasicTransform { this: TransformCake =>
       val ret = if (tp.isDefined) {
         val old = pos
         pos = max(tp, prevTemplateMaxPos)
-        if (old.precedes(pos)) {
-          (positions.from(old) intersect positions.to(pos)).toSeq.map(comments).filter(Scaladoc).lastOption match {
+        if (old <= pos) {
+          (positions.from(old.point) intersect positions.to(pos.point)).toSeq.map(comments).filter(Scaladoc).lastOption match {
             case Some(c) => c.text // :+ s"// found in '${between(old, pos)}'"
             case None =>
               // s"// empty '${between(old, pos)}' (${pos.lineContent}:${pos.column})" ::

src/test/resources/expected_output/basic/Foo$.java

@@ -0,0 +1,14 @@
+/**
+ * A simple class
+ */
+public  class Foo$ {
+  /**
+   * Static reference to the singleton instance of this Scala object.
+   */
+  public static final Foo$ MODULE$ = null;
+  public   Foo$ ()  { throw new RuntimeException(); }
+  /**
+   * @return something something
+   */
+  public  java.lang.String bar ()  { throw new RuntimeException(); }
+}

src/test/resources/expected_output/basic/Foo.java

@@ -0,0 +1,9 @@
+/**
+ * A simple class
+ */
+public  class Foo {
+  /**
+   * @return something something
+   */
+  static public  java.lang.String bar ()  { throw new RuntimeException(); }
+}

src/test/resources/input/basic/root.scala

@@ -1 +1,12 @@
 class AtTheRoot
+
+/**
+ * A simple class
+ */
+object Foo {
+
+  /**
+   * @return something something
+   */
+  def bar: String = ""
+}

src/test/scala/com/typesafe/genjavadoc/SignatureSpec.scala

@@ -60,7 +60,7 @@ class SignatureSpec {
     val scalac = new GenJavadocCompiler(Seq(
       s"genjavadoc:out=$docPath",
       "genjavadoc:suppressSynthetic=false"
-    ), rangepos = false)
+    ))
 
     val javaSources = expectedClasses.map{cls =>
       docPath + "/" + cls.replace(".", "/") + ".java"

src/test/scala/com/typesafe/genjavadoc/util/CompilerSpec.scala

@@ -20,16 +20,13 @@ trait CompilerSpec {
   /** Extra plugin arguments. */
   def extraSettings: Seq[String] = Seq.empty
 
-  /** whether to enable -Yrangepos */
-  def rangepos: Boolean = false
-
   @Test def compileSourcesAndGenerateExpectedOutput(): Unit = {
     val doc = IO.tempDir("java")
     val docPath = doc.getAbsolutePath
     val defaultSettings = Seq(s"out=$docPath", "suppressSynthetic=false")
     val scalac = new GenJavadocCompiler((defaultSettings ++ extraSettings).map{ kv =>
       s"genjavadoc:$kv"
-    }, rangepos)
+    })
 
     scalac.compile(sources)
     assertFalse("Scala compiler reported errors", scalac.reporter.hasErrors)

src/test/scala/com/typesafe/genjavadoc/util/GenJavaDocCompiler.scala

@@ -9,12 +9,10 @@ import scala.tools.nsc.{Global, Settings}
 /** An instance of the Scala compiler with the genjavadoc plugin enabled
   * @param pluginOptions additional parameters to pass to the compiler
   */
-class GenJavadocCompiler(pluginOptions: Seq[String], rangepos: Boolean) {
+class GenJavadocCompiler(pluginOptions: Seq[String]) {
 
   private val settings = new Settings
 
-  settings.Yrangepos.value = rangepos
-
   val reporter = new ConsoleReporter(settings)
   private val global = new Global(settings, reporter) {
     override protected def loadRoughPluginsList() =