[Truffle] Set top-level visibility only in RubyContext.load and Truff…

…leBridgeImpl.execute.

* Since the meaning of ParserContext.TOP_LEVEL is unclear.
* De-duplicate one call to RubyContext.execute.

core/src/main/java/org/jruby/truffle/TruffleBridgeImpl.java

@@ -14,13 +14,16 @@
 import com.oracle.truffle.api.Truffle;
 import com.oracle.truffle.api.frame.MaterializedFrame;
 import com.oracle.truffle.api.source.SourceSection;
+
 import org.jcodings.specific.UTF8Encoding;
 import org.jruby.TruffleBridge;
+import org.jruby.runtime.Visibility;
 import org.jruby.runtime.builtin.IRubyObject;
 import org.jruby.truffle.nodes.RubyNode;
 import org.jruby.truffle.nodes.TopLevelRaiseHandler;
 import org.jruby.truffle.nodes.control.SequenceNode;
 import org.jruby.truffle.nodes.core.*;
+import org.jruby.truffle.nodes.methods.SetFrameVisibilityNode;
 import org.jruby.truffle.runtime.core.*;
 import org.jruby.truffle.runtime.RubyContext;
 import org.jruby.truffle.runtime.core.RubyArray;
@@ -170,16 +173,18 @@ public Object execute(final TranslatorDriver.ParserContext parserContext, final
             source = Source.fromBytes(bytes, inputFile, new BytesDecoder.UTF8BytesDecoder());
         }
 
-        return truffleContext.execute(truffleContext, source, UTF8Encoding.INSTANCE, parserContext, self, parentFrame, null, new NodeWrapper() {
+        truffleContext.load(source, null, new NodeWrapper() {
             @Override
             public RubyNode wrap(RubyNode node) {
                 RubyContext context = node.getContext();
                 SourceSection sourceSection = node.getSourceSection();
                 return SequenceNode.sequence(context, sourceSection,
                         new SetTopLevelBindingNode(context, sourceSection),
-                        new TopLevelRaiseHandler(context, sourceSection, node));
+                        new TopLevelRaiseHandler(context, sourceSection,
+                                SetFrameVisibilityNode.PRIVATE_VISIBILITY_WRAPPER.wrap(node)));
             }
         });
+        return truffleContext.getCoreLibrary().getNilObject();
     }
 
     @Override

core/src/main/java/org/jruby/truffle/nodes/methods/SetFrameVisibilityNode.java

@@ -12,13 +12,22 @@
 import com.oracle.truffle.api.frame.FrameSlot;
 import com.oracle.truffle.api.frame.VirtualFrame;
 import com.oracle.truffle.api.source.SourceSection;
+
 import org.jruby.runtime.Visibility;
 import org.jruby.truffle.nodes.RubyNode;
 import org.jruby.truffle.runtime.RubyContext;
 import org.jruby.truffle.runtime.core.RubyModule;
+import org.jruby.truffle.translator.NodeWrapper;
 
 public class SetFrameVisibilityNode extends RubyNode {
 
+    public static final NodeWrapper PRIVATE_VISIBILITY_WRAPPER = new NodeWrapper() {
+        @Override
+        public RubyNode wrap(RubyNode node) {
+            return new SetFrameVisibilityNode(node.getContext(), node.getSourceSection(), node, Visibility.PRIVATE);
+        }
+    };
+
     @Child protected RubyNode body;
 
     final Visibility visibility;

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

@@ -18,17 +18,20 @@
 import java.util.concurrent.atomic.*;
 
 import com.oracle.truffle.api.object.Shape;
+
 import org.jcodings.Encoding;
 import org.jcodings.specific.UTF8Encoding;
-import org.jruby.Ruby;
 import org.jruby.*;
+
 import com.oracle.truffle.api.*;
 import com.oracle.truffle.api.source.*;
 import com.oracle.truffle.api.frame.*;
+
 import org.jruby.runtime.builtin.IRubyObject;
 import org.jruby.truffle.TruffleHooks;
 import org.jruby.truffle.nodes.RubyNode;
 import org.jruby.truffle.nodes.RubyRootNode;
+import org.jruby.truffle.nodes.methods.SetFrameVisibilityNode;
 import org.jruby.truffle.runtime.control.*;
 import org.jruby.truffle.runtime.core.*;
 import org.jruby.truffle.runtime.core.RubyArray;
@@ -139,10 +142,6 @@ public static String checkClassVariableName(RubyContext context, String name, Ru
         return name;
     }
 
-    public void load(Source source, RubyNode currentNode) {
-        execute(this, source, UTF8Encoding.INSTANCE, TranslatorDriver.ParserContext.TOP_LEVEL, coreLibrary.getMainObject(), null, currentNode);
-    }
-
     public void loadFile(String fileName, RubyNode currentNode) {
         if (new File(fileName).isAbsolute()) {
             loadFileAbsolute(fileName, currentNode);
@@ -161,9 +160,17 @@ private void loadFileAbsolute(String fileName, RubyNode currentNode) {
         }
 
         // Assume UTF-8 for the moment
-
         final Source source = Source.fromBytes(bytes, fileName, new BytesDecoder.UTF8BytesDecoder());
-        execute(this, source, UTF8Encoding.INSTANCE, TranslatorDriver.ParserContext.TOP_LEVEL, coreLibrary.getMainObject(), null, currentNode);
+
+        load(source, currentNode, SetFrameVisibilityNode.PRIVATE_VISIBILITY_WRAPPER);
+    }
+
+    public void load(Source source, RubyNode currentNode) {
+        load(source, currentNode, NodeWrapper.IDENTITY);
+    }
+
+    public void load(Source source, RubyNode currentNode, NodeWrapper nodeWrapper) {
+        execute(this, source, UTF8Encoding.INSTANCE, TranslatorDriver.ParserContext.TOP_LEVEL, coreLibrary.getMainObject(), null, currentNode, nodeWrapper);
     }
 
     public RubySymbol.SymbolTable getSymbolTable() {

core/src/main/java/org/jruby/truffle/translator/TranslatorDriver.java

@@ -161,11 +161,6 @@ public RubyRootNode parse(RubyNode currentNode, RubyContext context, Source sour
             truffleNode = rootNode.getBodyNode().accept(translator);
         }
 
-        // Set default top-level visibility
-        if (parserContext == ParserContext.TOP_LEVEL) {
-            truffleNode = new SetFrameVisibilityNode(context, truffleNode.getSourceSection(), truffleNode, Visibility.PRIVATE);
-        }
-
         // Load flip-flop states
 
         if (environment.getFlipFlopStates().size() > 0) {