changeset 22496:b3569a53c24c

Refactor and improve ComplexNumber sequence tests
author Matthias Grimmer <grimmer@ssw.jku.at>
date Mon, 14 Dec 2015 14:20:08 +0100
parents aeba89e1d8da
children bfc98cc37934
files truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/ComplexNumber.java truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/ComplexNumbersA.java truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/ComplexNumbersB.java truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/ComplexNumbersColumnBased.java truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/ComplexNumbersRowBased.java truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/MapTruffleObject.java truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/Schema.java truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/StructuredData.java truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/StructuredDataEntry.java truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/TruffleTCK.java
diffstat 10 files changed, 553 insertions(+), 604 deletions(-) [+]
line wrap: on
line diff
--- a/truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/ComplexNumber.java	Fri Dec 11 15:20:27 2015 +0100
+++ b/truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/ComplexNumber.java	Mon Dec 14 14:20:08 2015 +0100
@@ -33,7 +33,7 @@
 import com.oracle.truffle.api.interop.TruffleObject;
 import com.oracle.truffle.api.nodes.RootNode;
 
-public final class ComplexNumber implements TruffleObject {
+final class ComplexNumber implements TruffleObject {
 
     public static final String REAL_IDENTIFIER = "real";
     public static final String IMAGINARY_IDENTIFIER = "imaginary";
@@ -41,7 +41,7 @@
     private double real;
     private double imag;
 
-    public ComplexNumber(double real, double imaginary) {
+    ComplexNumber(double real, double imaginary) {
         this.real = real;
         this.imag = imaginary;
     }
--- a/truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/ComplexNumbersA.java	Fri Dec 11 15:20:27 2015 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,219 +0,0 @@
-/*
- * Copyright (c) 2015, 2015, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-package com.oracle.truffle.tck;
-
-import com.oracle.truffle.api.CallTarget;
-import com.oracle.truffle.api.CompilerDirectives;
-import com.oracle.truffle.api.Truffle;
-import com.oracle.truffle.api.frame.VirtualFrame;
-import com.oracle.truffle.api.interop.ForeignAccess;
-import com.oracle.truffle.api.interop.ForeignAccess.Factory;
-import com.oracle.truffle.api.interop.Message;
-import com.oracle.truffle.api.interop.TruffleObject;
-import com.oracle.truffle.api.nodes.Node;
-import com.oracle.truffle.api.nodes.RootNode;
-
-public final class ComplexNumbersA implements TruffleObject {
-
-    private final double[] data;
-
-    public ComplexNumbersA(double[] data) {
-        assert data.length % 2 == 0;
-        this.data = data;
-    }
-
-    public double[] getData() {
-        return data;
-    }
-
-    public ForeignAccess getForeignAccess() {
-        return ForeignAccess.create(new ComplexNumbersAForeignAccessFactory());
-    }
-
-    private static class ComplexNumbersAForeignAccessFactory implements Factory {
-
-        public boolean canHandle(TruffleObject obj) {
-            return obj instanceof ComplexNumbersA;
-        }
-
-        public CallTarget accessMessage(Message tree) {
-            if (Message.IS_NULL.equals(tree)) {
-                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
-            } else if (Message.IS_EXECUTABLE.equals(tree)) {
-                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
-            } else if (Message.IS_BOXED.equals(tree)) {
-                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
-            } else if (Message.HAS_SIZE.equals(tree)) {
-                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(true));
-            } else if (Message.READ.equals(tree)) {
-                return Truffle.getRuntime().createCallTarget(new ComplexNumbersAReadNode());
-            } else if (Message.WRITE.equals(tree)) {
-                return Truffle.getRuntime().createCallTarget(new ComplexNumbersAWriteNode());
-            } else if (Message.GET_SIZE.equals(tree)) {
-                return Truffle.getRuntime().createCallTarget(new ComplexNumbersASizeNode());
-            } else {
-                throw new IllegalArgumentException(tree.toString() + " not supported");
-            }
-        }
-    }
-
-    private static class ComplexNumbersAWriteNode extends RootNode {
-        protected ComplexNumbersAWriteNode() {
-            super(TckLanguage.class, null, null);
-        }
-
-        @Child private Node readReal;
-        @Child private Node readImag;
-
-        @Override
-        public Object execute(VirtualFrame frame) {
-            ComplexNumbersA complexNumbers = (ComplexNumbersA) ForeignAccess.getReceiver(frame);
-            Number index = (Number) ForeignAccess.getArguments(frame).get(0);
-            TruffleObject value = (TruffleObject) ForeignAccess.getArguments(frame).get(1);
-            if (readReal == null || readImag == null) {
-                CompilerDirectives.transferToInterpreterAndInvalidate();
-                this.readReal = insert(Message.READ.createNode());
-                this.readImag = insert(Message.READ.createNode());
-            }
-            Number realPart = (Number) ForeignAccess.execute(readReal, frame, value, new Object[]{ComplexNumber.REAL_IDENTIFIER});
-            Number imagPart = (Number) ForeignAccess.execute(readImag, frame, value, new Object[]{ComplexNumber.IMAGINARY_IDENTIFIER});
-
-            complexNumbers.data[index.intValue() * 2] = realPart.doubleValue();
-            complexNumbers.data[index.intValue() * 2 + 1] = imagPart.doubleValue();
-            return value;
-        }
-    }
-
-    private static class ComplexNumbersAReadNode extends RootNode {
-        protected ComplexNumbersAReadNode() {
-            super(TckLanguage.class, null, null);
-        }
-
-        @Override
-        public Object execute(VirtualFrame frame) {
-            ComplexNumbersA complexNumbers = (ComplexNumbersA) ForeignAccess.getReceiver(frame);
-            Number index = (Number) ForeignAccess.getArguments(frame).get(0);
-            return new ComplexNumberAEntry(complexNumbers, index.intValue());
-        }
-    }
-
-    private static class ComplexNumbersASizeNode extends RootNode {
-        protected ComplexNumbersASizeNode() {
-            super(TckLanguage.class, null, null);
-        }
-
-        @Override
-        public Object execute(VirtualFrame frame) {
-            ComplexNumbersA complexNumbers = (ComplexNumbersA) ForeignAccess.getReceiver(frame);
-            return complexNumbers.data.length / 2;
-        }
-
-    }
-
-    private static class ComplexNumberAEntry implements TruffleObject {
-
-        private final ComplexNumbersA numbers;
-        private final int index;
-
-        public ComplexNumberAEntry(ComplexNumbersA numbers, int index) {
-            this.numbers = numbers;
-            this.index = index;
-        }
-
-        public ForeignAccess getForeignAccess() {
-            return ForeignAccess.create(new ComplexNumberAEntryForeignAccessFactory());
-        }
-
-        private static class ComplexNumberAEntryForeignAccessFactory implements Factory {
-
-            public boolean canHandle(TruffleObject obj) {
-                return obj instanceof ComplexNumberAEntry;
-            }
-
-            public CallTarget accessMessage(Message tree) {
-                if (Message.IS_NULL.equals(tree)) {
-                    return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
-                } else if (Message.IS_EXECUTABLE.equals(tree)) {
-                    return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
-                } else if (Message.IS_BOXED.equals(tree)) {
-                    return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
-                } else if (Message.HAS_SIZE.equals(tree)) {
-                    return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
-                } else if (Message.READ.equals(tree)) {
-                    return Truffle.getRuntime().createCallTarget(new ComplexNumbersAEntryReadNode());
-                } else if (Message.WRITE.equals(tree)) {
-                    return Truffle.getRuntime().createCallTarget(new ComplexNumbersAEntryWriteNode());
-                } else {
-                    throw new IllegalArgumentException(tree.toString() + " not supported");
-                }
-            }
-
-            private static class ComplexNumbersAEntryReadNode extends RootNode {
-                protected ComplexNumbersAEntryReadNode() {
-                    super(TckLanguage.class, null, null);
-                }
-
-                @Child private Node readReal;
-                @Child private Node readImag;
-
-                @Override
-                public Object execute(VirtualFrame frame) {
-                    ComplexNumberAEntry complexNumber = (ComplexNumberAEntry) ForeignAccess.getReceiver(frame);
-                    String name = (String) ForeignAccess.getArguments(frame).get(0);
-                    if (name.equals(ComplexNumber.IMAGINARY_IDENTIFIER)) {
-                        return complexNumber.numbers.data[complexNumber.index * 2 + 1];
-                    } else if (name.equals(ComplexNumber.REAL_IDENTIFIER)) {
-                        return complexNumber.numbers.data[complexNumber.index * 2];
-                    } else {
-                        throw new IllegalArgumentException();
-                    }
-                }
-            }
-
-            private static class ComplexNumbersAEntryWriteNode extends RootNode {
-                protected ComplexNumbersAEntryWriteNode() {
-                    super(TckLanguage.class, null, null);
-                }
-
-                @Override
-                public Object execute(VirtualFrame frame) {
-                    ComplexNumberAEntry complexNumber = (ComplexNumberAEntry) ForeignAccess.getReceiver(frame);
-                    String name = (String) ForeignAccess.getArguments(frame).get(0);
-                    Number value = (Number) ForeignAccess.getArguments(frame).get(1);
-                    if (name.equals(ComplexNumber.IMAGINARY_IDENTIFIER)) {
-                        complexNumber.numbers.data[complexNumber.index * 2 + 1] = value.doubleValue();
-                    } else if (name.equals(ComplexNumber.REAL_IDENTIFIER)) {
-                        complexNumber.numbers.data[complexNumber.index * 2] = value.doubleValue();
-                    } else {
-                        throw new IllegalArgumentException();
-                    }
-                    return value;
-                }
-
-            }
-        }
-
-    }
-}
--- a/truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/ComplexNumbersB.java	Fri Dec 11 15:20:27 2015 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,229 +0,0 @@
-/*
- * Copyright (c) 2015, 2015, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-package com.oracle.truffle.tck;
-
-import com.oracle.truffle.api.CallTarget;
-import com.oracle.truffle.api.CompilerDirectives;
-import com.oracle.truffle.api.Truffle;
-import com.oracle.truffle.api.frame.VirtualFrame;
-import com.oracle.truffle.api.interop.ForeignAccess;
-import com.oracle.truffle.api.interop.ForeignAccess.Factory;
-import com.oracle.truffle.api.interop.Message;
-import com.oracle.truffle.api.interop.TruffleObject;
-import com.oracle.truffle.api.nodes.Node;
-import com.oracle.truffle.api.nodes.RootNode;
-
-public class ComplexNumbersB implements TruffleObject {
-
-    private final double[] reals;
-    private final double[] imags;
-
-    public ComplexNumbersB(double[] reals, double[] imags) {
-        assert reals.length == imags.length;
-        this.reals = reals;
-        this.imags = imags;
-    }
-
-    public double[] getData() {
-        double[] data = new double[reals.length * 2];
-        for (int i = 0; i < reals.length; i++) {
-            data[i * 2] = reals[i];
-            data[i * 2 + 1] = imags[i];
-        }
-        return data;
-    }
-
-    public ForeignAccess getForeignAccess() {
-        return ForeignAccess.create(new ComplexNumbersBForeignAccessFactory());
-    }
-
-    private static class ComplexNumbersBForeignAccessFactory implements Factory {
-
-        public boolean canHandle(TruffleObject obj) {
-            return obj instanceof ComplexNumbersB;
-        }
-
-        public CallTarget accessMessage(Message tree) {
-            if (Message.IS_NULL.equals(tree)) {
-                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
-            } else if (Message.IS_EXECUTABLE.equals(tree)) {
-                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
-            } else if (Message.IS_BOXED.equals(tree)) {
-                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
-            } else if (Message.HAS_SIZE.equals(tree)) {
-                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(true));
-            } else if (Message.READ.equals(tree)) {
-                return Truffle.getRuntime().createCallTarget(new ComplexNumbersBReadNode());
-            } else if (Message.WRITE.equals(tree)) {
-                return Truffle.getRuntime().createCallTarget(new ComplexNumbersBWriteNode());
-            } else if (Message.GET_SIZE.equals(tree)) {
-                return Truffle.getRuntime().createCallTarget(new ComplexNumbersBSizeNode());
-            } else {
-                throw new IllegalArgumentException(tree.toString() + " not supported");
-            }
-        }
-    }
-
-    private static class ComplexNumbersBWriteNode extends RootNode {
-        protected ComplexNumbersBWriteNode() {
-            super(TckLanguage.class, null, null);
-        }
-
-        @Child private Node readReal;
-        @Child private Node readImag;
-
-        @Override
-        public Object execute(VirtualFrame frame) {
-            ComplexNumbersB complexNumbers = (ComplexNumbersB) ForeignAccess.getReceiver(frame);
-            Number index = (Number) ForeignAccess.getArguments(frame).get(0);
-            TruffleObject value = (TruffleObject) ForeignAccess.getArguments(frame).get(1);
-            if (readReal == null || readImag == null) {
-                CompilerDirectives.transferToInterpreterAndInvalidate();
-                this.readReal = insert(Message.READ.createNode());
-                this.readImag = insert(Message.READ.createNode());
-            }
-            Number realPart = (Number) ForeignAccess.execute(readReal, frame, value, new Object[]{ComplexNumber.REAL_IDENTIFIER});
-            Number imagPart = (Number) ForeignAccess.execute(readImag, frame, value, new Object[]{ComplexNumber.IMAGINARY_IDENTIFIER});
-
-            complexNumbers.reals[index.intValue()] = realPart.doubleValue();
-            complexNumbers.imags[index.intValue()] = imagPart.doubleValue();
-            return value;
-        }
-    }
-
-    private static class ComplexNumbersBReadNode extends RootNode {
-        protected ComplexNumbersBReadNode() {
-            super(TckLanguage.class, null, null);
-        }
-
-        @Override
-        public Object execute(VirtualFrame frame) {
-            ComplexNumbersB complexNumbers = (ComplexNumbersB) ForeignAccess.getReceiver(frame);
-            Number index = (Number) ForeignAccess.getArguments(frame).get(0);
-            return new ComplexNumberBEntry(complexNumbers, index.intValue());
-        }
-
-    }
-
-    private static class ComplexNumbersBSizeNode extends RootNode {
-        protected ComplexNumbersBSizeNode() {
-            super(TckLanguage.class, null, null);
-        }
-
-        @Override
-        public Object execute(VirtualFrame frame) {
-            ComplexNumbersB complexNumbers = (ComplexNumbersB) ForeignAccess.getReceiver(frame);
-            assert complexNumbers.reals.length == complexNumbers.imags.length;
-            return complexNumbers.reals.length;
-        }
-
-    }
-
-    private static class ComplexNumberBEntry implements TruffleObject {
-
-        private final ComplexNumbersB numbers;
-        private final int index;
-
-        public ComplexNumberBEntry(ComplexNumbersB numbers, int index) {
-            this.numbers = numbers;
-            this.index = index;
-        }
-
-        public ForeignAccess getForeignAccess() {
-            return ForeignAccess.create(new ComplexNumberBEntryForeignAccessFactory());
-        }
-
-        private static class ComplexNumberBEntryForeignAccessFactory implements Factory {
-
-            public boolean canHandle(TruffleObject obj) {
-                return obj instanceof ComplexNumberBEntry;
-            }
-
-            public CallTarget accessMessage(Message tree) {
-                if (Message.IS_NULL.equals(tree)) {
-                    return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
-                } else if (Message.IS_EXECUTABLE.equals(tree)) {
-                    return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
-                } else if (Message.IS_BOXED.equals(tree)) {
-                    return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
-                } else if (Message.HAS_SIZE.equals(tree)) {
-                    return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
-                } else if (Message.READ.equals(tree)) {
-                    return Truffle.getRuntime().createCallTarget(new ComplexNumbersAEntryReadNode());
-                } else if (Message.WRITE.equals(tree)) {
-                    return Truffle.getRuntime().createCallTarget(new ComplexNumbersAEntryWriteNode());
-                } else {
-                    throw new IllegalArgumentException(tree.toString() + " not supported");
-                }
-            }
-
-            private static class ComplexNumbersAEntryReadNode extends RootNode {
-                protected ComplexNumbersAEntryReadNode() {
-                    super(TckLanguage.class, null, null);
-                }
-
-                @Child private Node readReal;
-                @Child private Node readImag;
-
-                @Override
-                public Object execute(VirtualFrame frame) {
-                    ComplexNumberBEntry complexNumber = (ComplexNumberBEntry) ForeignAccess.getReceiver(frame);
-                    String name = (String) ForeignAccess.getArguments(frame).get(0);
-                    if (name.equals(ComplexNumber.IMAGINARY_IDENTIFIER)) {
-                        return complexNumber.numbers.imags[complexNumber.index];
-                    } else if (name.equals(ComplexNumber.REAL_IDENTIFIER)) {
-                        return complexNumber.numbers.reals[complexNumber.index];
-                    } else {
-                        throw new IllegalArgumentException();
-                    }
-                }
-            }
-
-            private static class ComplexNumbersAEntryWriteNode extends RootNode {
-                protected ComplexNumbersAEntryWriteNode() {
-                    super(TckLanguage.class, null, null);
-                }
-
-                @Override
-                public Object execute(VirtualFrame frame) {
-                    ComplexNumberBEntry complexNumber = (ComplexNumberBEntry) ForeignAccess.getReceiver(frame);
-                    String name = (String) ForeignAccess.getArguments(frame).get(0);
-                    Number value = (Number) ForeignAccess.getArguments(frame).get(1);
-                    if (name.equals(ComplexNumber.IMAGINARY_IDENTIFIER)) {
-                        complexNumber.numbers.imags[complexNumber.index] = value.doubleValue();
-                    } else if (name.equals(ComplexNumber.REAL_IDENTIFIER)) {
-                        complexNumber.numbers.reals[complexNumber.index] = value.doubleValue();
-                    } else {
-                        throw new IllegalArgumentException();
-                    }
-                    return value;
-                }
-
-            }
-        }
-
-    }
-
-}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/ComplexNumbersColumnBased.java	Mon Dec 14 14:20:08 2015 +0100
@@ -0,0 +1,229 @@
+/*
+ * Copyright (c) 2015, 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.truffle.tck;
+
+import com.oracle.truffle.api.CallTarget;
+import com.oracle.truffle.api.CompilerDirectives;
+import com.oracle.truffle.api.Truffle;
+import com.oracle.truffle.api.frame.VirtualFrame;
+import com.oracle.truffle.api.interop.ForeignAccess;
+import com.oracle.truffle.api.interop.ForeignAccess.Factory;
+import com.oracle.truffle.api.interop.Message;
+import com.oracle.truffle.api.interop.TruffleObject;
+import com.oracle.truffle.api.nodes.Node;
+import com.oracle.truffle.api.nodes.RootNode;
+
+final class ComplexNumbersColumnBased implements TruffleObject {
+
+    private final double[] reals;
+    private final double[] imags;
+
+    ComplexNumbersColumnBased(double[] reals, double[] imags) {
+        assert reals.length == imags.length;
+        this.reals = reals;
+        this.imags = imags;
+    }
+
+    public double[] getData() {
+        double[] data = new double[reals.length * 2];
+        for (int i = 0; i < reals.length; i++) {
+            data[i * 2] = reals[i];
+            data[i * 2 + 1] = imags[i];
+        }
+        return data;
+    }
+
+    public ForeignAccess getForeignAccess() {
+        return ForeignAccess.create(new ComplexNumbersBForeignAccessFactory());
+    }
+
+    private static class ComplexNumbersBForeignAccessFactory implements Factory {
+
+        public boolean canHandle(TruffleObject obj) {
+            return obj instanceof ComplexNumbersColumnBased;
+        }
+
+        public CallTarget accessMessage(Message tree) {
+            if (Message.IS_NULL.equals(tree)) {
+                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
+            } else if (Message.IS_EXECUTABLE.equals(tree)) {
+                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
+            } else if (Message.IS_BOXED.equals(tree)) {
+                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
+            } else if (Message.HAS_SIZE.equals(tree)) {
+                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(true));
+            } else if (Message.READ.equals(tree)) {
+                return Truffle.getRuntime().createCallTarget(new ComplexNumbersBReadNode());
+            } else if (Message.WRITE.equals(tree)) {
+                return Truffle.getRuntime().createCallTarget(new ComplexNumbersBWriteNode());
+            } else if (Message.GET_SIZE.equals(tree)) {
+                return Truffle.getRuntime().createCallTarget(new ComplexNumbersBSizeNode());
+            } else {
+                throw new IllegalArgumentException(tree.toString() + " not supported");
+            }
+        }
+    }
+
+    private static class ComplexNumbersBWriteNode extends RootNode {
+        protected ComplexNumbersBWriteNode() {
+            super(TckLanguage.class, null, null);
+        }
+
+        @Child private Node readReal;
+        @Child private Node readImag;
+
+        @Override
+        public Object execute(VirtualFrame frame) {
+            ComplexNumbersColumnBased complexNumbers = (ComplexNumbersColumnBased) ForeignAccess.getReceiver(frame);
+            Number index = (Number) ForeignAccess.getArguments(frame).get(0);
+            TruffleObject value = (TruffleObject) ForeignAccess.getArguments(frame).get(1);
+            if (readReal == null || readImag == null) {
+                CompilerDirectives.transferToInterpreterAndInvalidate();
+                this.readReal = insert(Message.READ.createNode());
+                this.readImag = insert(Message.READ.createNode());
+            }
+            Number realPart = (Number) ForeignAccess.execute(readReal, frame, value, new Object[]{ComplexNumber.REAL_IDENTIFIER});
+            Number imagPart = (Number) ForeignAccess.execute(readImag, frame, value, new Object[]{ComplexNumber.IMAGINARY_IDENTIFIER});
+
+            complexNumbers.reals[index.intValue()] = realPart.doubleValue();
+            complexNumbers.imags[index.intValue()] = imagPart.doubleValue();
+            return value;
+        }
+    }
+
+    private static class ComplexNumbersBReadNode extends RootNode {
+        protected ComplexNumbersBReadNode() {
+            super(TckLanguage.class, null, null);
+        }
+
+        @Override
+        public Object execute(VirtualFrame frame) {
+            ComplexNumbersColumnBased complexNumbers = (ComplexNumbersColumnBased) ForeignAccess.getReceiver(frame);
+            Number index = (Number) ForeignAccess.getArguments(frame).get(0);
+            return new ComplexNumberBEntry(complexNumbers, index.intValue());
+        }
+
+    }
+
+    private static class ComplexNumbersBSizeNode extends RootNode {
+        protected ComplexNumbersBSizeNode() {
+            super(TckLanguage.class, null, null);
+        }
+
+        @Override
+        public Object execute(VirtualFrame frame) {
+            ComplexNumbersColumnBased complexNumbers = (ComplexNumbersColumnBased) ForeignAccess.getReceiver(frame);
+            assert complexNumbers.reals.length == complexNumbers.imags.length;
+            return complexNumbers.reals.length;
+        }
+
+    }
+
+    private static class ComplexNumberBEntry implements TruffleObject {
+
+        private final ComplexNumbersColumnBased numbers;
+        private final int index;
+
+        public ComplexNumberBEntry(ComplexNumbersColumnBased numbers, int index) {
+            this.numbers = numbers;
+            this.index = index;
+        }
+
+        public ForeignAccess getForeignAccess() {
+            return ForeignAccess.create(new ComplexNumberBEntryForeignAccessFactory());
+        }
+
+        private static class ComplexNumberBEntryForeignAccessFactory implements Factory {
+
+            public boolean canHandle(TruffleObject obj) {
+                return obj instanceof ComplexNumberBEntry;
+            }
+
+            public CallTarget accessMessage(Message tree) {
+                if (Message.IS_NULL.equals(tree)) {
+                    return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
+                } else if (Message.IS_EXECUTABLE.equals(tree)) {
+                    return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
+                } else if (Message.IS_BOXED.equals(tree)) {
+                    return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
+                } else if (Message.HAS_SIZE.equals(tree)) {
+                    return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
+                } else if (Message.READ.equals(tree)) {
+                    return Truffle.getRuntime().createCallTarget(new ComplexNumbersAEntryReadNode());
+                } else if (Message.WRITE.equals(tree)) {
+                    return Truffle.getRuntime().createCallTarget(new ComplexNumbersAEntryWriteNode());
+                } else {
+                    throw new IllegalArgumentException(tree.toString() + " not supported");
+                }
+            }
+
+            private static class ComplexNumbersAEntryReadNode extends RootNode {
+                protected ComplexNumbersAEntryReadNode() {
+                    super(TckLanguage.class, null, null);
+                }
+
+                @Child private Node readReal;
+                @Child private Node readImag;
+
+                @Override
+                public Object execute(VirtualFrame frame) {
+                    ComplexNumberBEntry complexNumber = (ComplexNumberBEntry) ForeignAccess.getReceiver(frame);
+                    String name = (String) ForeignAccess.getArguments(frame).get(0);
+                    if (name.equals(ComplexNumber.IMAGINARY_IDENTIFIER)) {
+                        return complexNumber.numbers.imags[complexNumber.index];
+                    } else if (name.equals(ComplexNumber.REAL_IDENTIFIER)) {
+                        return complexNumber.numbers.reals[complexNumber.index];
+                    } else {
+                        throw new IllegalArgumentException();
+                    }
+                }
+            }
+
+            private static class ComplexNumbersAEntryWriteNode extends RootNode {
+                protected ComplexNumbersAEntryWriteNode() {
+                    super(TckLanguage.class, null, null);
+                }
+
+                @Override
+                public Object execute(VirtualFrame frame) {
+                    ComplexNumberBEntry complexNumber = (ComplexNumberBEntry) ForeignAccess.getReceiver(frame);
+                    String name = (String) ForeignAccess.getArguments(frame).get(0);
+                    Number value = (Number) ForeignAccess.getArguments(frame).get(1);
+                    if (name.equals(ComplexNumber.IMAGINARY_IDENTIFIER)) {
+                        complexNumber.numbers.imags[complexNumber.index] = value.doubleValue();
+                    } else if (name.equals(ComplexNumber.REAL_IDENTIFIER)) {
+                        complexNumber.numbers.reals[complexNumber.index] = value.doubleValue();
+                    } else {
+                        throw new IllegalArgumentException();
+                    }
+                    return value;
+                }
+
+            }
+        }
+
+    }
+
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/ComplexNumbersRowBased.java	Mon Dec 14 14:20:08 2015 +0100
@@ -0,0 +1,219 @@
+/*
+ * Copyright (c) 2015, 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.truffle.tck;
+
+import com.oracle.truffle.api.CallTarget;
+import com.oracle.truffle.api.CompilerDirectives;
+import com.oracle.truffle.api.Truffle;
+import com.oracle.truffle.api.frame.VirtualFrame;
+import com.oracle.truffle.api.interop.ForeignAccess;
+import com.oracle.truffle.api.interop.ForeignAccess.Factory;
+import com.oracle.truffle.api.interop.Message;
+import com.oracle.truffle.api.interop.TruffleObject;
+import com.oracle.truffle.api.nodes.Node;
+import com.oracle.truffle.api.nodes.RootNode;
+
+final class ComplexNumbersRowBased implements TruffleObject {
+
+    private final double[] data;
+
+    ComplexNumbersRowBased(double[] data) {
+        assert data.length % 2 == 0;
+        this.data = data;
+    }
+
+    public double[] getData() {
+        return data;
+    }
+
+    public ForeignAccess getForeignAccess() {
+        return ForeignAccess.create(new ComplexNumbersAForeignAccessFactory());
+    }
+
+    private static class ComplexNumbersAForeignAccessFactory implements Factory {
+
+        public boolean canHandle(TruffleObject obj) {
+            return obj instanceof ComplexNumbersRowBased;
+        }
+
+        public CallTarget accessMessage(Message tree) {
+            if (Message.IS_NULL.equals(tree)) {
+                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
+            } else if (Message.IS_EXECUTABLE.equals(tree)) {
+                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
+            } else if (Message.IS_BOXED.equals(tree)) {
+                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
+            } else if (Message.HAS_SIZE.equals(tree)) {
+                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(true));
+            } else if (Message.READ.equals(tree)) {
+                return Truffle.getRuntime().createCallTarget(new ComplexNumbersAReadNode());
+            } else if (Message.WRITE.equals(tree)) {
+                return Truffle.getRuntime().createCallTarget(new ComplexNumbersAWriteNode());
+            } else if (Message.GET_SIZE.equals(tree)) {
+                return Truffle.getRuntime().createCallTarget(new ComplexNumbersASizeNode());
+            } else {
+                throw new IllegalArgumentException(tree.toString() + " not supported");
+            }
+        }
+    }
+
+    private static class ComplexNumbersAWriteNode extends RootNode {
+        protected ComplexNumbersAWriteNode() {
+            super(TckLanguage.class, null, null);
+        }
+
+        @Child private Node readReal;
+        @Child private Node readImag;
+
+        @Override
+        public Object execute(VirtualFrame frame) {
+            ComplexNumbersRowBased complexNumbers = (ComplexNumbersRowBased) ForeignAccess.getReceiver(frame);
+            Number index = (Number) ForeignAccess.getArguments(frame).get(0);
+            TruffleObject value = (TruffleObject) ForeignAccess.getArguments(frame).get(1);
+            if (readReal == null || readImag == null) {
+                CompilerDirectives.transferToInterpreterAndInvalidate();
+                this.readReal = insert(Message.READ.createNode());
+                this.readImag = insert(Message.READ.createNode());
+            }
+            Number realPart = (Number) ForeignAccess.execute(readReal, frame, value, new Object[]{ComplexNumber.REAL_IDENTIFIER});
+            Number imagPart = (Number) ForeignAccess.execute(readImag, frame, value, new Object[]{ComplexNumber.IMAGINARY_IDENTIFIER});
+
+            complexNumbers.data[index.intValue() * 2] = realPart.doubleValue();
+            complexNumbers.data[index.intValue() * 2 + 1] = imagPart.doubleValue();
+            return value;
+        }
+    }
+
+    private static class ComplexNumbersAReadNode extends RootNode {
+        protected ComplexNumbersAReadNode() {
+            super(TckLanguage.class, null, null);
+        }
+
+        @Override
+        public Object execute(VirtualFrame frame) {
+            ComplexNumbersRowBased complexNumbers = (ComplexNumbersRowBased) ForeignAccess.getReceiver(frame);
+            Number index = (Number) ForeignAccess.getArguments(frame).get(0);
+            return new ComplexNumberAEntry(complexNumbers, index.intValue());
+        }
+    }
+
+    private static class ComplexNumbersASizeNode extends RootNode {
+        protected ComplexNumbersASizeNode() {
+            super(TckLanguage.class, null, null);
+        }
+
+        @Override
+        public Object execute(VirtualFrame frame) {
+            ComplexNumbersRowBased complexNumbers = (ComplexNumbersRowBased) ForeignAccess.getReceiver(frame);
+            return complexNumbers.data.length / 2;
+        }
+
+    }
+
+    private static class ComplexNumberAEntry implements TruffleObject {
+
+        private final ComplexNumbersRowBased numbers;
+        private final int index;
+
+        public ComplexNumberAEntry(ComplexNumbersRowBased numbers, int index) {
+            this.numbers = numbers;
+            this.index = index;
+        }
+
+        public ForeignAccess getForeignAccess() {
+            return ForeignAccess.create(new ComplexNumberAEntryForeignAccessFactory());
+        }
+
+        private static class ComplexNumberAEntryForeignAccessFactory implements Factory {
+
+            public boolean canHandle(TruffleObject obj) {
+                return obj instanceof ComplexNumberAEntry;
+            }
+
+            public CallTarget accessMessage(Message tree) {
+                if (Message.IS_NULL.equals(tree)) {
+                    return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
+                } else if (Message.IS_EXECUTABLE.equals(tree)) {
+                    return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
+                } else if (Message.IS_BOXED.equals(tree)) {
+                    return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
+                } else if (Message.HAS_SIZE.equals(tree)) {
+                    return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
+                } else if (Message.READ.equals(tree)) {
+                    return Truffle.getRuntime().createCallTarget(new ComplexNumbersAEntryReadNode());
+                } else if (Message.WRITE.equals(tree)) {
+                    return Truffle.getRuntime().createCallTarget(new ComplexNumbersAEntryWriteNode());
+                } else {
+                    throw new IllegalArgumentException(tree.toString() + " not supported");
+                }
+            }
+
+            private static class ComplexNumbersAEntryReadNode extends RootNode {
+                protected ComplexNumbersAEntryReadNode() {
+                    super(TckLanguage.class, null, null);
+                }
+
+                @Child private Node readReal;
+                @Child private Node readImag;
+
+                @Override
+                public Object execute(VirtualFrame frame) {
+                    ComplexNumberAEntry complexNumber = (ComplexNumberAEntry) ForeignAccess.getReceiver(frame);
+                    String name = (String) ForeignAccess.getArguments(frame).get(0);
+                    if (name.equals(ComplexNumber.IMAGINARY_IDENTIFIER)) {
+                        return complexNumber.numbers.data[complexNumber.index * 2 + 1];
+                    } else if (name.equals(ComplexNumber.REAL_IDENTIFIER)) {
+                        return complexNumber.numbers.data[complexNumber.index * 2];
+                    } else {
+                        throw new IllegalArgumentException();
+                    }
+                }
+            }
+
+            private static class ComplexNumbersAEntryWriteNode extends RootNode {
+                protected ComplexNumbersAEntryWriteNode() {
+                    super(TckLanguage.class, null, null);
+                }
+
+                @Override
+                public Object execute(VirtualFrame frame) {
+                    ComplexNumberAEntry complexNumber = (ComplexNumberAEntry) ForeignAccess.getReceiver(frame);
+                    String name = (String) ForeignAccess.getArguments(frame).get(0);
+                    Number value = (Number) ForeignAccess.getArguments(frame).get(1);
+                    if (name.equals(ComplexNumber.IMAGINARY_IDENTIFIER)) {
+                        complexNumber.numbers.data[complexNumber.index * 2 + 1] = value.doubleValue();
+                    } else if (name.equals(ComplexNumber.REAL_IDENTIFIER)) {
+                        complexNumber.numbers.data[complexNumber.index * 2] = value.doubleValue();
+                    } else {
+                        throw new IllegalArgumentException();
+                    }
+                    return value;
+                }
+
+            }
+        }
+
+    }
+}
--- a/truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/MapTruffleObject.java	Fri Dec 11 15:20:27 2015 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,120 +0,0 @@
-/*
- * Copyright (c) 2015, 2015, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-package com.oracle.truffle.tck;
-
-import java.util.Map;
-
-import com.oracle.truffle.api.CallTarget;
-import com.oracle.truffle.api.Truffle;
-import com.oracle.truffle.api.frame.VirtualFrame;
-import com.oracle.truffle.api.interop.ForeignAccess;
-import com.oracle.truffle.api.interop.ForeignAccess.Factory;
-import com.oracle.truffle.api.interop.Message;
-import com.oracle.truffle.api.interop.TruffleObject;
-import com.oracle.truffle.api.nodes.RootNode;
-
-@SuppressWarnings({"rawtypes", "unchecked"})
-public final class MapTruffleObject implements TruffleObject {
-
-    private final Map map;
-
-    public MapTruffleObject(Map map) {
-        this.map = map;
-    }
-
-    public ForeignAccess getForeignAccess() {
-        return ForeignAccess.create(new MapForeignAccessFactory());
-    }
-
-    private static class MapForeignAccessFactory implements Factory {
-
-        public boolean canHandle(TruffleObject obj) {
-            return obj instanceof MapTruffleObject;
-        }
-
-        public CallTarget accessMessage(Message tree) {
-            if (Message.IS_NULL.equals(tree)) {
-                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
-            } else if (Message.IS_EXECUTABLE.equals(tree)) {
-                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
-            } else if (Message.IS_BOXED.equals(tree)) {
-                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
-            } else if (Message.HAS_SIZE.equals(tree)) {
-                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(true));
-            } else if (Message.READ.equals(tree)) {
-                return Truffle.getRuntime().createCallTarget(new MapReadNode());
-            } else if (Message.WRITE.equals(tree)) {
-                return Truffle.getRuntime().createCallTarget(new MapWriteNode());
-            } else if (Message.GET_SIZE.equals(tree)) {
-                return Truffle.getRuntime().createCallTarget(new MapSizeNode());
-            } else {
-                throw new IllegalArgumentException(tree.toString() + " not supported");
-            }
-        }
-    }
-
-    private static class MapWriteNode extends RootNode {
-        protected MapWriteNode() {
-            super(TckLanguage.class, null, null);
-        }
-
-        @Override
-        public Object execute(VirtualFrame frame) {
-            MapTruffleObject map = (MapTruffleObject) ForeignAccess.getReceiver(frame);
-            Object key = ForeignAccess.getArguments(frame).get(0);
-            Object value = ForeignAccess.getArguments(frame).get(1);
-            map.map.put(key, value);
-            return value;
-        }
-    }
-
-    private static class MapReadNode extends RootNode {
-        protected MapReadNode() {
-            super(TckLanguage.class, null, null);
-        }
-
-        @Override
-        public Object execute(VirtualFrame frame) {
-            MapTruffleObject map = (MapTruffleObject) ForeignAccess.getReceiver(frame);
-            Object key = ForeignAccess.getArguments(frame).get(0);
-            return map.map.get(key);
-        }
-
-    }
-
-    private static class MapSizeNode extends RootNode {
-        protected MapSizeNode() {
-            super(TckLanguage.class, null, null);
-        }
-
-        @Override
-        public Object execute(VirtualFrame frame) {
-            MapTruffleObject map = (MapTruffleObject) ForeignAccess.getReceiver(frame);
-            return map.map.size();
-        }
-
-    }
-
-}
--- a/truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/Schema.java	Fri Dec 11 15:20:27 2015 +0100
+++ b/truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/Schema.java	Mon Dec 14 14:20:08 2015 +0100
@@ -25,13 +25,11 @@
 package com.oracle.truffle.tck;
 
 import java.nio.ByteBuffer;
-import java.util.HashMap;
 import java.util.List;
-import java.util.Map;
 
-public final class Schema {
+final class Schema {
 
-    public enum Type {
+    enum Type {
         DOUBLE(Double.SIZE / Byte.SIZE),
         INT(Integer.SIZE / Byte.SIZE);
 
@@ -47,7 +45,7 @@
     private final List<String> names;
     private final List<Type> types;
 
-    public Schema(int size, boolean rowBased, List<String> names, List<Type> types) {
+    Schema(int size, boolean rowBased, List<String> names, List<Type> types) {
         this.size = size;
         this.rowBased = rowBased;
         this.names = names;
@@ -58,19 +56,7 @@
         return size;
     }
 
-    // for simplicity: structured data is read-only
-
-    public Map<String, Object> getEntry(byte[] buffer, int index) {
-        Map<String, Object> entry = new HashMap<>();
-        for (int i = 0; i < names.size(); i++) {
-            String name = names.get(i);
-            Object value = get(buffer, index, name);
-            entry.put(name, value);
-        }
-        return entry;
-    }
-
-    private Object get(byte[] buffer, int index, String name) {
+    public Object get(byte[] buffer, int index, String name) {
         assert names.contains(name);
         int offset = rowBased ? getRowOffset(name, index) : getColumnOffset(name, index);
         if (types.get(names.indexOf(name)) == Type.DOUBLE) {
--- a/truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/StructuredData.java	Fri Dec 11 15:20:27 2015 +0100
+++ b/truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/StructuredData.java	Mon Dec 14 14:20:08 2015 +0100
@@ -24,8 +24,6 @@
  */
 package com.oracle.truffle.tck;
 
-import java.util.Map;
-
 import com.oracle.truffle.api.CallTarget;
 import com.oracle.truffle.api.Truffle;
 import com.oracle.truffle.api.frame.VirtualFrame;
@@ -35,20 +33,16 @@
 import com.oracle.truffle.api.interop.TruffleObject;
 import com.oracle.truffle.api.nodes.RootNode;
 
-public final class StructuredData implements TruffleObject {
+final class StructuredData implements TruffleObject {
 
     private final byte[] buffer;
     private final Schema schema;
 
-    public StructuredData(byte[] buffer, Schema schema) {
+    StructuredData(byte[] buffer, Schema schema) {
         this.buffer = buffer;
         this.schema = schema;
     }
 
-    public Map<String, Object> getEntry(int index) {
-        return schema.getEntry(buffer, index);
-    }
-
     public ForeignAccess getForeignAccess() {
         return ForeignAccess.create(new StructuredDataForeignAccessFactory());
     }
@@ -88,7 +82,7 @@
         public Object execute(VirtualFrame frame) {
             StructuredData data = (StructuredData) ForeignAccess.getReceiver(frame);
             Number index = (Number) ForeignAccess.getArguments(frame).get(0);
-            return new MapTruffleObject(data.getEntry(index.intValue()));
+            return new StructuredDataEntry(data.buffer, data.schema, index.intValue());
         }
 
     }
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/StructuredDataEntry.java	Mon Dec 14 14:20:08 2015 +0100
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2015, 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.truffle.tck;
+
+import com.oracle.truffle.api.CallTarget;
+import com.oracle.truffle.api.Truffle;
+import com.oracle.truffle.api.frame.VirtualFrame;
+import com.oracle.truffle.api.interop.ForeignAccess;
+import com.oracle.truffle.api.interop.ForeignAccess.Factory;
+import com.oracle.truffle.api.interop.Message;
+import com.oracle.truffle.api.interop.TruffleObject;
+import com.oracle.truffle.api.nodes.RootNode;
+
+final class StructuredDataEntry implements TruffleObject {
+
+    private final byte[] buffer;
+    private final Schema schema;
+    private final int index;
+
+    StructuredDataEntry(byte[] buffer, Schema schema, int index) {
+        this.buffer = buffer;
+        this.schema = schema;
+        this.index = index;
+    }
+
+    public ForeignAccess getForeignAccess() {
+        return ForeignAccess.create(new StructuredDataEntryForeignAccessFactory());
+    }
+
+    private static class StructuredDataEntryForeignAccessFactory implements Factory {
+
+        public boolean canHandle(TruffleObject obj) {
+            return obj instanceof StructuredDataEntry;
+        }
+
+        public CallTarget accessMessage(Message tree) {
+            // for simplicity: this StructuredData is read-only
+            if (Message.IS_NULL.equals(tree)) {
+                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
+            } else if (Message.IS_EXECUTABLE.equals(tree)) {
+                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
+            } else if (Message.IS_BOXED.equals(tree)) {
+                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
+            } else if (Message.HAS_SIZE.equals(tree)) {
+                return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false));
+            } else if (Message.READ.equals(tree)) {
+                return Truffle.getRuntime().createCallTarget(new StructuredDataEntryReadNode());
+            } else {
+                throw new IllegalArgumentException(tree.toString() + " not supported");
+            }
+        }
+    }
+
+    private static class StructuredDataEntryReadNode extends RootNode {
+        protected StructuredDataEntryReadNode() {
+            super(TckLanguage.class, null, null);
+        }
+
+        @Override
+        public Object execute(VirtualFrame frame) {
+            StructuredDataEntry data = (StructuredDataEntry) ForeignAccess.getReceiver(frame);
+            String name = (String) ForeignAccess.getArguments(frame).get(0);
+            return data.schema.get(data.buffer, data.index, name);
+        }
+
+    }
+}
--- a/truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/TruffleTCK.java	Fri Dec 11 15:20:27 2015 +0100
+++ b/truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/TruffleTCK.java	Mon Dec 14 14:20:08 2015 +0100
@@ -834,7 +834,7 @@
         }
         PolyglotEngine.Value apply = findGlobalSymbol(id);
 
-        ComplexNumbersA numbers = new ComplexNumbersA(new double[]{2, -1, 30, -1, 10, -1});
+        ComplexNumbersRowBased numbers = new ComplexNumbersRowBased(new double[]{2, -1, 30, -1, 10, -1});
 
         Number n = (Number) apply.execute(numbers).get();
         assertEquals("The same value returned", 42.0, n.doubleValue(), 0.01);
@@ -848,7 +848,7 @@
         }
         PolyglotEngine.Value apply = findGlobalSymbol(id);
 
-        ComplexNumbersB numbers = new ComplexNumbersB(new double[]{2, 30, 10}, new double[]{-1, -1, -1});
+        ComplexNumbersColumnBased numbers = new ComplexNumbersColumnBased(new double[]{2, 30, 10}, new double[]{-1, -1, -1});
 
         Number n = (Number) apply.execute(numbers).get();
         assertEquals("The same value returned", 42.0, n.doubleValue(), 0.01);
@@ -897,8 +897,8 @@
         }
         PolyglotEngine.Value apply = findGlobalSymbol(id);
 
-        ComplexNumbersA a = new ComplexNumbersA(new double[]{-1, -1, -1, -1, -1, -1});
-        ComplexNumbersA b = new ComplexNumbersA(new double[]{41, 42, 43, 44, 45, 46});
+        ComplexNumbersRowBased a = new ComplexNumbersRowBased(new double[]{-1, -1, -1, -1, -1, -1});
+        ComplexNumbersRowBased b = new ComplexNumbersRowBased(new double[]{41, 42, 43, 44, 45, 46});
 
         apply.execute(a, b);
 
@@ -913,8 +913,8 @@
         }
         PolyglotEngine.Value apply = findGlobalSymbol(id);
 
-        ComplexNumbersB a = new ComplexNumbersB(new double[]{-1, -1, -1}, new double[]{-1, -1, -1});
-        ComplexNumbersB b = new ComplexNumbersB(new double[]{41, 43, 45}, new double[]{42, 44, 46});
+        ComplexNumbersColumnBased a = new ComplexNumbersColumnBased(new double[]{-1, -1, -1}, new double[]{-1, -1, -1});
+        ComplexNumbersColumnBased b = new ComplexNumbersColumnBased(new double[]{41, 43, 45}, new double[]{42, 44, 46});
 
         apply.execute(a, b);
 
@@ -929,7 +929,7 @@
         }
         PolyglotEngine.Value apply = findGlobalSymbol(id);
 
-        ComplexNumbersA a = new ComplexNumbersA(new double[]{-1, -1, -1, -1, -1, -1});
+        ComplexNumbersRowBased a = new ComplexNumbersRowBased(new double[]{-1, -1, -1, -1, -1, -1});
 
         Schema schema = new Schema(3, true, Arrays.asList(ComplexNumber.REAL_IDENTIFIER, ComplexNumber.IMAGINARY_IDENTIFIER), Arrays.asList(Type.DOUBLE, Type.DOUBLE));
         byte[] buffer = new byte[6 * Double.SIZE / Byte.SIZE];