missing truffle boundary

style fix

Author: cosminbasca

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/BuiltinFunctions.java

@@ -163,6 +163,7 @@
 import com.oracle.graal.python.runtime.PythonContext;
 import com.oracle.graal.python.runtime.PythonCore;
 import com.oracle.graal.python.runtime.PythonOptions;
+import com.oracle.graal.python.runtime.PythonParser;
 import com.oracle.graal.python.runtime.PythonParser.ParserMode;
 import com.oracle.graal.python.runtime.exception.PException;
 import com.oracle.graal.python.runtime.exception.PythonErrorType;
@@ -685,18 +686,24 @@ Object execCustomGlobalsGlobalLocals(Object source, PDict globals, @SuppressWarn
             PArguments.setPFrame(args, factory().createPFrame(globals));
             RootCallTarget rootCallTarget = code.getRootCallTarget();
             if (rootCallTarget == null) {
-                Source src = Source.newBuilder("python", new String(code.getCodestring()), code.getName()).build();
-                Node root = getCore().getParser().parse(ParserMode.File, getCore(), src, null);
-                if (root instanceof RootNode) {
-                    rootCallTarget = Truffle.getRuntime().createCallTarget((RootNode) root);
-                }
+                rootCallTarget = extractRootCallTargetFromSource(code);
             }
             if (rootCallTarget == null) {
                 throw raise(ValueError, "cannot create the rootCallTarget from the code object: %p", code);
             }
             return indirectCallNode.call(rootCallTarget, args);
         }
 
+        @TruffleBoundary
+        private RootCallTarget extractRootCallTargetFromSource(PCode code) {
+            Source src = Source.newBuilder("python", new String(code.getCodestring()), code.getName()).build();
+            Node root = getCore().getParser().parse(ParserMode.File, getCore(), src, null);
+            if (root instanceof RootNode) {
+                return Truffle.getRuntime().createCallTarget((RootNode) root);
+            }
+            return null;
+        }
+
         @Specialization(guards = {"isMapping(locals)"})
         Object execInheritGlobalsCustomLocals(VirtualFrame frame, Object source, @SuppressWarnings("unused") PNone globals, Object locals,
                         @Cached("create()") ReadCallerFrameNode readCallerFrameNode) {

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/nodes/PClosureRootNode.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/nodes/expression/ExpressionNode.java

@@ -179,7 +179,7 @@ private ExpressionWithSideEffects(ExpressionNode node, StatementNode[] sideEffec
             this.node = node;
             this.sideEffects = sideEffects;
             SourceSection sourceSection = node.getSourceSection();
-            if (sourceSection!=null) {
+            if (sourceSection != null) {
                 Source source = sourceSection.getSource();
                 this.assignSourceSection(source.createSection(0, source.getLength()));
             }