Merge pull request scala#1867 from huitseeker/backport/1721

SI-6766 Create a continuations project in eclipse ( backports scala#1721)

Author: gkossakowski

src/eclipse/README.md

@@ -20,7 +20,9 @@ JDK. The Scala library uses such APIs, so you'd see this error:
 You can *fix* it by allowing calls to restricted APIs in `Java=>Compiler=>Errors/Warnings=>Deprecated and Restricted API` 
 settings.
 
-3. The IDE guesses the Scala library version by looking for `library.properties` inside 
+3. We need to build the continuations library for some dependencies and that library requires the continuations plugin to be enabled. In preferences go to Scala=>Compiler and add "continuations:enable" to the P parameter. 
+
+4. The IDE guesses the Scala library version by looking for `library.properties` inside 
 the library jar. The `scala-library` project does not have such a file, so you will see
 an error about incompatible libraries. You can work around it by adding a `library.properties`
 inside `src/library` with the following contents:
@@ -31,7 +33,7 @@ inside `src/library` with the following contents:
         osgi.version.number=2.10.0.v20120603-141530-b34313db72
         copyright.string=Copyright 2002-2012 LAMP/EPFL
 
-4. Project files are tracked by Git, so adding them to `.gitignore` won't prevent them
+5. Project files are tracked by Git, so adding them to `.gitignore` won't prevent them
 from being shown as dirty in `git status`. You can still ignore them by telling Git to
 consider them unchanged:
 

src/eclipse/continuations-library/.classpath

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="library"/>
+	<classpathentry combineaccessrules="false" kind="src" path="/scala-library"/>
+	<classpathentry kind="con" path="org.scala-ide.sdt.launching.SCALA_CONTAINER"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
+	<classpathentry kind="output" path="build-quick-continuations-library"/>
+</classpath>

src/eclipse/continuations-library/.project

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>continuations-library</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.scala-ide.sdt.core.scalabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.scala-ide.sdt.core.scalanature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+	<linkedResources>
+		<link>
+			<name>build-quick-continuations-library</name>
+			<type>2</type>
+			<locationURI>SCALA_BASEDIR/build/quick/classes/continuations/library</locationURI>
+		</link>
+		<link>
+			<name>library</name>
+			<type>2</type>
+			<locationURI>SCALA_BASEDIR/src/continuations/library</locationURI>
+		</link>
+	</linkedResources>
+</projectDescription>

src/eclipse/continuations-library/.settings/org.scala-ide.sdt.core.prefs

@@ -0,0 +1,2 @@
+P=continuations\:enable
+scala.compiler.useProjectSettings=true

src/eclipse/partest/.classpath

@@ -10,5 +10,6 @@
 	<classpathentry kind="lib" path="lib/jline.jar"/>
 	<classpathentry kind="lib" path="lib/msil.jar"/>
 	<classpathentry combineaccessrules="false" kind="src" path="/asm"/>
+	<classpathentry combineaccessrules="false" kind="src" path="/continuations-library"/>
 	<classpathentry kind="output" path="build-quick-partest"/>
 </classpath>

src/eclipse/scala-compiler/.classpath

@@ -7,5 +7,6 @@
 	<classpathentry kind="lib" path="lib/ant/ant.jar"/>
 	<classpathentry kind="lib" path="lib/jline.jar"/>
 	<classpathentry kind="lib" path="lib/msil.jar"/>
+	<classpathentry combineaccessrules="false" kind="src" path="/continuations-library"/>
 	<classpathentry kind="output" path="build-quick-compiler"/>
 </classpath>

src/eclipse/scalap/.classpath

@@ -8,5 +8,6 @@
 	<classpathentry kind="lib" path="lib/ant/ant.jar"/>
 	<classpathentry kind="lib" path="lib/jline.jar"/>
 	<classpathentry kind="lib" path="lib/msil.jar"/>
+	<classpathentry combineaccessrules="false" kind="src" path="/continuations-library"/>
 	<classpathentry kind="output" path="build-quick-scalap"/>
 </classpath>