[Truffle] - Adds Random class

Author: lucasamorimca

spec/truffle/tags/core/random/new_tags.txt

@@ -1,4 +1,3 @@
-fails:Random.new returns a new instance of Random
 fails:Random.new uses a random seed value if none is supplied
 fails:Random.new returns Random instances initialized with different seeds
 fails:Random.new accepts an Integer seed value as an argument

truffle/src/main/java/org/jruby/truffle/nodes/RubyTypes.java

@@ -53,7 +53,8 @@
                 RubyEncoding.class, //
                 RubySymbol.class, //
                 RubyThread.class, //
-                RubyTime.class, //
+                RubyTime.class,
+                RubyRandom.class, //
                 RubyEncodingConverter.class, //
                 RubyMethod.class, //
                 RubyUnboundMethod.class, //

truffle/src/main/java/org/jruby/truffle/nodes/core/RandomNodes.java

@@ -0,0 +1,6 @@
+package org.jruby.truffle.nodes.core;
+
+@CoreClass(name = "Random")
+public abstract class RandomNodes {
+
+}

truffle/src/main/java/org/jruby/truffle/runtime/core/CoreLibrary.java

@@ -98,6 +98,7 @@ public class CoreLibrary {
     private final RubyClass securityErrorClass;
     private final RubyClass standardErrorClass;
     private final RubyClass stringClass;
+    private final RubyClass randomClass;
     private final RubyClass stringDataClass;
     private final RubyClass symbolClass;
     private final RubyClass syntaxErrorClass;
@@ -284,6 +285,7 @@ public CoreLibrary(RubyContext context) {
         rangeClass = defineClass("Range", new RubyRange.RangeAllocator());
         regexpClass = defineClass("Regexp", new RubyRegexp.RegexpAllocator());
         stringClass = defineClass("String", new RubyString.StringAllocator());
+        randomClass = defineClass("Random");
         symbolClass = defineClass("Symbol");
         threadClass = defineClass("Thread", new RubyThread.ThreadAllocator());
         timeClass = defineClass("Time", new RubyTime.TimeAllocator());

truffle/src/main/java/org/jruby/truffle/runtime/core/RubyRandom.java

@@ -0,0 +1,18 @@
+package org.jruby.truffle.runtime.core;
+
+/**
+ * Represents the Ruby {@code Random} class.
+ */
+public class RubyRandom extends RubyBasicObject  {
+
+    private Long seedValue;
+
+    public RubyRandom(RubyClass randomClass) {
+        super(randomClass);
+    }
+
+    public void setSeedValue(Long seedValue) {
+        this.seedValue = seedValue;
+    }
+
+}