Renamed com.sun.gluegen -> com.jogamp.gluegen

1 files changed, 1950 insertions, 0 deletions

diff --git a/src/java/com/jogamp/gluegen/JavaEmitter.java b/src/java/com/jogamp/gluegen/JavaEmitter.java
new file mode 100644
index 0000000..250da79
--- /dev/null
+++ b/src/java/com/jogamp/gluegen/JavaEmitter.java
@@ -0,0 +1,1950 @@
+/*
+ * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
+ * Copyright (c) 2010 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * - Redistribution of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistribution in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * Neither the name of Sun Microsystems, Inc. or the names of
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * This software is provided "AS IS," without a warranty of any kind. ALL
+ * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
+ * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
+ * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
+ * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
+ * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
+ * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
+ * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
+ * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ *
+ * You acknowledge that this software is not designed or intended for use
+ * in the design, construction, operation or maintenance of any nuclear
+ * facility.
+ *
+ * Sun gratefully acknowledges that this software was originally authored
+ * and developed by Kenneth Bradley Russell and Christopher John Kline.
+ */
+
+package com.jogamp.gluegen;
+
+import com.jogamp.common.nio.Buffers;
+import com.jogamp.common.os.DynamicLookupHelper;
+import java.io.*;
+import java.util.*;
+import java.text.MessageFormat;
+
+import com.jogamp.gluegen.cgram.types.*;
+import java.nio.Buffer;
+import java.util.logging.Logger;
+
+import static java.util.logging.Level.*;
+import static com.jogamp.gluegen.JavaEmitter.MethodAccess.*;
+
+// PROBLEMS:
+//  - what if something returns 'const int *'? Could we
+//    return an IntBuffer that has read-only behavior? Or do we copy the array
+//    (but we don't know its size!). What do we do if it returns a non-const
+//    int*? Should the user be allowed to write back to the returned pointer?
+//
+//  - Non-const array types must be properly released with JNI_COMMIT
+//    in order to see side effects if the array was copied.
+
+
+public class JavaEmitter implements GlueEmitter {
+
+  private StructLayout layout;
+  private TypeDictionary typedefDictionary;
+  private TypeDictionary structDictionary;
+  private Map<Type, Type> canonMap;
+  protected JavaConfiguration cfg;
+
+  /**
+   * Style of code emission. Can emit everything into one class
+   * (AllStatic), separate interface and implementing classes
+   * (InterfaceAndImpl), only the interface (InterfaceOnly), or only
+   * the implementation (ImplOnly).
+   */
+  public enum EmissionStyle {AllStatic, InterfaceAndImpl, InterfaceOnly, ImplOnly};
+
+  /**
+   * Access control for emitted Java methods.
+   */
+  public enum MethodAccess {PUBLIC, PROTECTED, PRIVATE, PACKAGE_PRIVATE, PUBLIC_ABSTRACT}
+
+  private PrintWriter javaWriter; // Emits either interface or, in AllStatic mode, everything
+  private PrintWriter javaImplWriter; // Only used in non-AllStatic modes for impl class
+  private PrintWriter cWriter;
+  private MachineDescription machDesc32;
+  private MachineDescription machDesc64;
+
+  protected final static Logger LOG = Logger.getLogger(JavaEmitter.class.getPackage().getName());
+
+  public void readConfigurationFile(String filename) throws Exception {
+    cfg = createConfig();
+    cfg.read(filename);
+  }
+
+  public void setMachineDescription(MachineDescription md32, MachineDescription md64) {
+
+    if ((md32 == null) && (md64 == null)) {
+      throw new RuntimeException("Must specify at least one MachineDescription");
+    }
+
+    machDesc32 = md32;
+    machDesc64 = md64;
+  }
+
+  class ConstantRenamer implements SymbolFilter {
+
+    private List<ConstantDefinition> constants;
+
+    public void filterSymbols(List<ConstantDefinition> constants, List<FunctionSymbol> functions) {
+      this.constants = constants;
+      doWork();
+    }
+
+    public List<ConstantDefinition> getConstants() {
+      return constants;
+    }
+
+    public List<FunctionSymbol> getFunctions() {
+      return null;
+    }
+
+    private void doWork() {
+      List<ConstantDefinition> newConstants = new ArrayList<ConstantDefinition>();
+      JavaConfiguration cfg = getConfig();
+      for (ConstantDefinition def : constants) {
+        def.rename(cfg.getJavaSymbolRename(def.getName()));
+        newConstants.add(def);
+      }
+      constants = newConstants;
+    }
+  }
+
+    public void beginEmission(GlueEmitterControls controls) throws IOException {
+
+        // Request emission of any structs requested
+        for (String structs : cfg.forcedStructs()) {
+            controls.forceStructEmission(structs);
+        }
+
+        if (!cfg.structsOnly()) {
+            try {
+                openWriters();
+            } catch (Exception e) {
+                throw new RuntimeException("Unable to open files for writing", e);
+            }
+            emitAllFileHeaders();
+
+            // Handle renaming of constants
+            controls.runSymbolFilter(new ConstantRenamer());
+        }
+    }
+
+    public void endEmission() {
+        if (!cfg.structsOnly()) {
+            emitAllFileFooters();
+
+            try {
+                closeWriters();
+            } catch (Exception e) {
+                throw new RuntimeException("Unable to close open files", e);
+            }
+        }
+    }
+
+  public void beginDefines() throws Exception {
+    if ((cfg.allStatic() || cfg.emitInterface()) && !cfg.structsOnly()) {
+      javaWriter().println();
+    }
+  }
+
+  protected static int getJavaRadix(String name, String value)  {
+    // FIXME: need to handle when type specifier is in last char (e.g.,
+    // "1.0d or 2759L", because parseXXX() methods don't allow the type
+    // specifier character in the string.
+    //
+    //char lastChar = value.charAt(value.length()-1);
+
+    try {
+      // see if it's a long or int
+      int radix;
+      String parseValue;
+      // FIXME: are you allowed to specify hex/octal constants with
+      // negation, e.g. "-0xFF" or "-056"? If so, need to modify the
+      // following "if(..)" checks and parseValue computation
+      if (value.startsWith("0x") || value.startsWith("0X")) {
+        radix = 16;
+        parseValue = value.substring(2);
+      }
+      else if (value.startsWith("0") && value.length() > 1) {
+        // TODO: is "0" the prefix in C to indicate octal???
+        radix = 8;
+        parseValue = value.substring(1);
+      }
+      else {
+        radix = 10;
+        parseValue = value;
+      }
+      //System.err.println("parsing " + value + " as long w/ radix " + radix);
+      long longVal = Long.parseLong(parseValue, radix);
+      return radix;
+    } catch (NumberFormatException e) {
+      try {
+        // see if it's a double or float
+        double dVal = Double.parseDouble(value);
+        return 10;
+      } catch (NumberFormatException e2) {
+        throw new RuntimeException(
+          "Cannot emit define \""+name+"\": value \""+value+
+          "\" cannot be assigned to a int, long, float, or double", e2);
+      }
+    }
+  }
+
+  protected static Object getJavaValue(String name, String value) {
+
+    // "calculates" the result type of a simple expression
+    // example: (2+3)-(2.0f-3.0) -> Double
+    // example: (1 << 2) -> Integer
+
+    Scanner scanner = new Scanner(value).useDelimiter("[+-/*/></(/)]");
+
+    Object resultType = null;
+
+    while (scanner.hasNext()) {
+
+        String t = scanner.next().trim();
+
+        if(0<t.length()) {
+            Object type = getJavaValue2(name, t);
+
+            //fast path
+            if(type instanceof Double)
+                return type;
+
+            if(resultType != null) {
+
+                if(resultType instanceof Integer) {
+                    if(type instanceof Long || type instanceof Float || type instanceof Double)
+                        resultType = type;
+                }else if(resultType instanceof Long) {
+                    if(type instanceof Float || type instanceof Double)
+                        resultType = type;
+                }else if(resultType instanceof Float) {
+                    if(type instanceof Float)
+                        resultType = type;
+                }
+            }else{
+                resultType = type;
+            }
+
+            //fast path
+            if(resultType instanceof Double)
+                return type;
+        }
+    }
+
+    return resultType;
+  }
+
+  private static Object getJavaValue2(String name, String value) {
+    // FIXME: need to handle when type specifier is in last char (e.g.,
+    // "1.0d or 2759L", because parseXXX() methods don't allow the type
+    // specifier character in the string.
+    //
+    char lastChar = value.charAt(value.length()-1);
+
+    try {
+      // see if it's a long or int
+      int radix;
+      String parseValue;
+      // FIXME: are you allowed to specify hex/octal constants with
+      // negation, e.g. "-0xFF" or "-056"? If so, need to modify the
+      // following "if(..)" checks and parseValue computation
+      if (value.startsWith("0x") || value.startsWith("0X")) {
+        radix = 16;
+        parseValue = value.substring(2);
+      } else if (value.startsWith("0") && value.length() > 1) {
+        // TODO: is "0" the prefix in C to indicate octal???
+        radix = 8;
+        parseValue = value.substring(1);
+      } else {
+        radix = 10;
+        parseValue = value;
+      }
+      if(lastChar == 'u' || lastChar == 'U') {
+          parseValue = parseValue.substring(0, parseValue.length()-1);
+      }
+
+      //System.err.println("parsing " + value + " as long w/ radix " + radix);
+      long longVal = Long.parseLong(parseValue, radix);
+      // if constant is small enough, store it as an int instead of a long
+      if (longVal > Integer.MIN_VALUE && longVal < Integer.MAX_VALUE) {
+        return (int)longVal;
+      }
+      return longVal;
+
+    } catch (NumberFormatException e) {
+      try {
+        // see if it's a double or float
+        double dVal = Double.parseDouble(value);
+        double absVal = Math.abs(dVal);
+        // if constant is small enough, store it as a float instead of a double
+        if (absVal < Float.MIN_VALUE || absVal > Float.MAX_VALUE) {
+            return new Double(dVal);
+        }
+        return new Float((float) dVal);
+      } catch (NumberFormatException e2) {
+        throw new RuntimeException(
+          "Cannot emit define \""+name+"\": value \""+value+
+          "\" cannot be assigned to a int, long, float, or double", e2);
+      }
+    }
+  }
+
+
+  protected static String getJavaType(String name, String value) {
+    Object oval = getJavaValue(name, value);
+    return getJavaType(name, oval);
+  }
+
+  protected static String getJavaType(String name, Object oval) {
+    if(oval instanceof Integer) {
+        return "int";
+    } else if(oval instanceof Long) {
+        return "long";
+    } else if(oval instanceof Float) {
+        return "float";
+    } else if(oval instanceof Double) {
+        return "double";
+    }
+
+    throw new RuntimeException(
+      "Cannot emit define (2) \""+name+"\": value \""+oval+
+      "\" cannot be assigned to a int, long, float, or double");
+  }
+
+  public void emitDefine(ConstantDefinition def, String optionalComment) throws Exception  {
+
+    if (cfg.allStatic() || cfg.emitInterface()) {
+      // TODO: Some defines (e.g., GL_DOUBLE_EXT in gl.h) are defined in terms
+      // of other defines -- should we emit them as references to the original
+      // define (not even sure if the lexer supports this)? Right now they're
+      // emitted as the numeric value of the original definition. If we decide
+      // emit them as references we'll also have to emit them in the correct
+      // order. It's probably not an issue right now because the emitter
+      // currently only emits only numeric defines -- if it handled #define'd
+      // objects it would make a bigger difference.
+
+      String name = def.getName();
+      String value = def.getValue();
+
+      if (!cfg.shouldIgnoreInInterface(name)) {
+        String type = getJavaType(name, value);
+        if (optionalComment != null && optionalComment.length() != 0) {
+          javaWriter().println("  /** " + optionalComment + " */");
+        }
+        String suffix = "";
+        if(!value.endsWith(")")) {
+            if (type.equals("float") && !value.endsWith("f")) {
+                suffix = "f";
+            }else if(value.endsWith("u") || value.endsWith("U")) {
+                value = value.substring(0, value.length()-1);
+            }
+        }
+
+        javaWriter().println("  public static final " + type + " " + name + " = " + value + suffix + ";");
+      }
+    }
+  }
+
+  public void endDefines() throws Exception {
+  }
+
+  public void beginFunctions(TypeDictionary typedefDictionary,
+                             TypeDictionary structDictionary,
+                             Map<Type, Type> canonMap) throws Exception {
+
+    this.typedefDictionary = typedefDictionary;
+    this.structDictionary  = structDictionary;
+    this.canonMap          = canonMap;
+
+    if ((cfg.allStatic() || cfg.emitInterface()) && !cfg.structsOnly()) {
+      javaWriter().println();
+    }
+  }
+
+  public Iterator<FunctionSymbol> emitFunctions(List<FunctionSymbol> originalCFunctions) throws Exception {
+
+    // Sometimes headers will have the same function prototype twice, once
+    // with the argument names and once without. We'll remember the signatures
+    // we've already processed we don't generate duplicate bindings.
+    //
+    // Note: this code assumes that on the equals() method in FunctionSymbol
+    // only considers function name and argument types (i.e., it does not
+    // consider argument *names*) when comparing FunctionSymbols for equality
+    Set<FunctionSymbol> funcsToBindSet = new HashSet<FunctionSymbol>(100);
+    for (FunctionSymbol cFunc : originalCFunctions) {
+      if (!funcsToBindSet.contains(cFunc)) {
+        funcsToBindSet.add(cFunc);
+      }
+    }
+
+    //    validateFunctionsToBind(funcsToBindSet);
+
+    ArrayList<FunctionSymbol> funcsToBind = new ArrayList<FunctionSymbol>(funcsToBindSet);
+    // sort functions to make them easier to find in native code
+    Collections.sort(funcsToBind, new Comparator<FunctionSymbol>() {
+            public int compare(FunctionSymbol o1, FunctionSymbol o2) {
+                return o1.getName().compareTo(o2.getName());
+            }
+        });
+
+    // Bind all the C funcs to Java methods
+    HashSet<MethodBinding> methodBindingSet = new HashSet<MethodBinding>();
+    ArrayList<FunctionEmitter> methodBindingEmitters = new ArrayList<FunctionEmitter>(2*funcsToBind.size());
+    for (FunctionSymbol cFunc : funcsToBind) {
+      // Check to see whether this function should be ignored
+      if (!cfg.shouldIgnoreInImpl(cFunc.getName())) {
+          methodBindingEmitters.addAll(generateMethodBindingEmitters(methodBindingSet, cFunc));
+      }
+
+    }
+
+    // Emit all the methods
+    for (FunctionEmitter emitter : methodBindingEmitters) {
+      try {
+        if (!emitter.isInterface() || !cfg.shouldIgnoreInInterface(emitter.getName())) {
+            emitter.emit();
+            emitter.getDefaultOutput().println(); // put newline after method body
+        }
+      } catch (Exception e) {
+        throw new RuntimeException(
+            "Error while emitting binding for \"" + emitter.getName() + "\"", e);
+      }
+    }
+
+    // Return the list of FunctionSymbols that we generated gluecode for
+    return funcsToBind.iterator();
+  }
+
+  /**
+   * Create the object that will read and store configuration information for
+   * this JavaEmitter.
+   */
+  protected JavaConfiguration createConfig() {
+    return new JavaConfiguration();
+  }
+
+  /**
+   * Get the configuration information for this JavaEmitter.
+   */
+  protected JavaConfiguration getConfig() {
+    return cfg;
+  }
+
+  /**
+   * Generates the public emitters for this MethodBinding which will
+   * produce either simply signatures (for the interface class, if
+   * any) or function definitions with or without a body (depending on
+   * whether or not the implementing function can go directly to
+   * native code because it doesn't need any processing of the
+   * outgoing arguments).
+   */
+  protected void generatePublicEmitters(MethodBinding binding,
+                                        List<FunctionEmitter> allEmitters,
+                                        boolean signatureOnly) {
+    PrintWriter writer = ((signatureOnly || cfg.allStatic()) ? javaWriter() : javaImplWriter());
+
+    if (cfg.manuallyImplement(binding.getName()) && !signatureOnly) {
+      // We only generate signatures for manually-implemented methods;
+      // user provides the implementation
+      return;
+    }
+
+    MethodAccess accessControl = cfg.accessControl(binding.getName());
+    // We should not emit anything except public APIs into interfaces
+    if (signatureOnly && (accessControl != PUBLIC)) {
+      return;
+    }
+
+    // It's possible we may not need a body even if signatureOnly is
+    // set to false; for example, if the routine doesn't take any
+    // arrays or buffers as arguments
+    boolean isUnimplemented = cfg.isUnimplemented(binding.getName());
+    List<String> prologue = cfg.javaPrologueForMethod(binding, false, false);
+    List<String> epilogue = cfg.javaEpilogueForMethod(binding, false, false);
+    boolean needsBody = (isUnimplemented ||
+                         (binding.needsNIOWrappingOrUnwrapping() ||
+                          binding.signatureUsesJavaPrimitiveArrays()) ||
+                         (prologue != null) ||
+                         (epilogue != null));
+
+    JavaMethodBindingEmitter emitter =
+      new JavaMethodBindingEmitter(binding,
+                                   writer,
+                                   cfg.runtimeExceptionType(),
+                                   cfg.unsupportedExceptionType(),
+                                   !signatureOnly && needsBody,
+                                   cfg.tagNativeBinding(),
+                                   false,
+                                   cfg.nioDirectOnly(binding.getName()),
+                                   false,
+                                   false,
+                                   false,
+                                   isUnimplemented,
+                                   signatureOnly,
+                                   cfg);
+    switch (accessControl) {
+      case PUBLIC:     emitter.addModifier(JavaMethodBindingEmitter.PUBLIC); break;
+      case PROTECTED:  emitter.addModifier(JavaMethodBindingEmitter.PROTECTED); break;
+      case PRIVATE:    emitter.addModifier(JavaMethodBindingEmitter.PRIVATE); break;
+      default: break; // package-private adds no modifiers
+    }
+    if (cfg.allStatic()) {
+      emitter.addModifier(JavaMethodBindingEmitter.STATIC);
+    }
+    if (!isUnimplemented && !needsBody && !signatureOnly) {
+      emitter.addModifier(JavaMethodBindingEmitter.NATIVE);
+    }
+    emitter.setReturnedArrayLengthExpression(cfg.returnedArrayLength(binding.getName()));
+    emitter.setPrologue(prologue);
+    emitter.setEpilogue(epilogue);
+    allEmitters.add(emitter);
+  }
+
+  /**
+   * Generates the private emitters for this MethodBinding. On the
+   * Java side these will simply produce signatures for native
+   * methods. On the C side these will create the emitters which will
+   * write the JNI code to interface to the functions. We need to be
+   * careful to make the signatures all match up and not produce too
+   * many emitters which would lead to compilation errors from
+   * creating duplicated methods / functions.
+   */
+  protected void generatePrivateEmitters(MethodBinding binding,
+                                         List<FunctionEmitter> allEmitters) {
+    if (cfg.manuallyImplement(binding.getName())) {
+      // Don't produce emitters for the implementation class
+      return;
+    }
+
+    boolean hasPrologueOrEpilogue =
+        ((cfg.javaPrologueForMethod(binding, false, false) != null) ||
+         (cfg.javaEpilogueForMethod(binding, false, false) != null));
+
+    // If we already generated a public native entry point for this
+    // method, don't emit another one
+    if (!cfg.isUnimplemented(binding.getName()) &&
+        (binding.needsNIOWrappingOrUnwrapping() ||
+         binding.signatureUsesJavaPrimitiveArrays() ||
+         hasPrologueOrEpilogue)) {
+      PrintWriter writer = (cfg.allStatic() ? javaWriter() : javaImplWriter());
+
+      // If the binding uses primitive arrays, we are going to emit
+      // the private native entry point for it along with the version
+      // taking only NIO buffers
+      if (!binding.signatureUsesJavaPrimitiveArrays()) {
+        // (Always) emit the entry point taking only direct buffers
+        JavaMethodBindingEmitter emitter =
+          new JavaMethodBindingEmitter(binding,
+                                       writer,
+                                       cfg.runtimeExceptionType(),
+                                       cfg.unsupportedExceptionType(),
+                                       false,
+                                       cfg.tagNativeBinding(),
+                                       true,
+                                       cfg.nioDirectOnly(binding.getName()),
+                                       true,
+                                       true,
+                                       false,
+                                       false,
+                                       false,
+                                       cfg);
+        emitter.addModifier(JavaMethodBindingEmitter.PRIVATE);
+        if (cfg.allStatic()) {
+          emitter.addModifier(JavaMethodBindingEmitter.STATIC);
+        }
+        emitter.addModifier(JavaMethodBindingEmitter.NATIVE);
+        emitter.setReturnedArrayLengthExpression(cfg.returnedArrayLength(binding.getName()));
+        allEmitters.add(emitter);
+      }
+    }
+
+    // Now generate the C emitter(s). We need to produce one for every
+    // Java native entry point (public or private). The only
+    // situations where we don't produce one are (a) when the method
+    // is unimplemented, and (b) when the signature contains primitive
+    // arrays, since the latter is handled by the method binding
+    // variant taking only NIO Buffers.
+    if (!cfg.isUnimplemented(binding.getName()) &&
+        !binding.signatureUsesJavaPrimitiveArrays()) {
+      CMethodBindingEmitter cEmitter;
+      // Generate a binding without mixed access (NIO-direct, -indirect, array)
+      cEmitter =
+          new CMethodBindingEmitter(binding,
+                                    cWriter(),
+                                    cfg.implPackageName(),
+                                    cfg.implClassName(),
+                                    true, // NOTE: we always disambiguate with a suffix now, so this is optional
+                                    cfg.allStatic(),
+                                    (binding.needsNIOWrappingOrUnwrapping() || hasPrologueOrEpilogue),
+                                    !cfg.nioDirectOnly(binding.getName()),
+                                    machDesc64);
+      prepCEmitter(binding, cEmitter);
+      allEmitters.add(cEmitter);
+    }
+  }
+
+  protected void prepCEmitter(MethodBinding binding, CMethodBindingEmitter cEmitter) 
+  {
+      // See whether we need an expression to help calculate the
+      // length of any return type
+      JavaType javaReturnType = binding.getJavaReturnType();
+      if (javaReturnType.isNIOBuffer() ||
+          javaReturnType.isCompoundTypeWrapper()) {
+        // See whether capacity has been specified
+        String capacity = cfg.returnValueCapacity(binding.getName());
+        if (capacity != null) {
+          cEmitter.setReturnValueCapacityExpression( new MessageFormat(capacity) );
+        }
+      } else if (javaReturnType.isArray() ||
+                 javaReturnType.isArrayOfCompoundTypeWrappers()) {
+        // NOTE: adding a check here because the CMethodBindingEmitter
+        // also doesn't yet handle returning scalar arrays. In order
+        // to implement this, return the type as a Buffer instead
+        // (i.e., IntBuffer, FloatBuffer) and add code as necessary.
+        if (javaReturnType.isPrimitiveArray()) {
+          throw new RuntimeException("Primitive array return types not yet supported");
+        }
+
+        // See whether length has been specified
+        String len = cfg.returnValueLength(binding.getName());
+        if (len != null) {
+          cEmitter.setReturnValueLengthExpression( new MessageFormat(len) );
+        }
+      }
+      cEmitter.setTemporaryCVariableDeclarations(cfg.temporaryCVariableDeclarations(binding.getName()));
+      cEmitter.setTemporaryCVariableAssignments(cfg.temporaryCVariableAssignments(binding.getName()));
+  }
+
+  /**
+   * Generate all appropriate Java bindings for the specified C function
+   * symbols.
+   */
+  protected List<? extends FunctionEmitter> generateMethodBindingEmitters(Set<MethodBinding> methodBindingSet, FunctionSymbol sym) throws Exception {
+
+    ArrayList<FunctionEmitter> allEmitters = new ArrayList<FunctionEmitter>();
+
+    try {
+      // Get Java binding for the function
+      MethodBinding mb = bindFunction(sym, null, null, machDesc64);
+
+      // JavaTypes representing C pointers in the initial
+      // MethodBinding have not been lowered yet to concrete types
+      List<MethodBinding> bindings = expandMethodBinding(mb);
+
+      for (MethodBinding binding : bindings) {
+
+        if(!methodBindingSet.add(binding)) {
+            // skip .. already exisiting binding ..
+            continue;
+        }
+
+        if (cfg.allStatic() && binding.hasContainingType()) {
+          // This should not currently happen since structs are emitted using a different mechanism
+          throw new IllegalArgumentException("Cannot create binding in AllStatic mode because method has containing type: \"" +
+                                             binding + "\"");
+        }
+
+        // The structure of the generated glue code looks something like this:
+        // Simple method (no arrays, void pointers, etc.):
+        //   Interface class:
+        //     public void fooMethod();
+        //   Implementation class:
+        //     public native void fooMethod();
+        //
+        // Method taking void* argument:
+        //   Interface class:
+        //     public void fooMethod(Buffer arg);
+        //   Implementation class:
+        //     public void fooMethod(Buffer arg) {
+        //       ... bounds checks, etc. ...
+        //
+        //       boolean arg_direct = arg != null && Buffers.isDirect(arg);
+        //
+        //       fooMethod0(arg_direct?arg:Buffers.getArray(arg),
+        //                  arg_direct?Buffers.getDirectBufferByteOffset(arg):Buffers.getIndirectBufferByteOffset(arg),
+        //                  arg_direct,
+        //                  ... );
+        //     }
+        //     private native void fooMethod1(Object arg, int arg_byte_offset, boolean arg_is_direct, ...);
+        //
+        // Method taking primitive array argument:
+        //   Interface class:
+        //     public void fooMethod(int[] arg, int arg_offset);
+        //     public void fooMethod(IntBuffer arg);
+        //   Implementing class:
+        //     public void fooMethod(int[] arg, int arg_offset) {
+        //       ... range checks, etc. ...
+        //       fooMethod1(arg, SIZEOF_INT * arg_offset);
+        //     }
+        //     public void fooMethod(IntBuffer arg) {
+        //       ... bounds checks, etc. ...
+        //
+        //       boolean arg_direct = BufferFactory.isDirect(arg);
+        //
+        //       fooMethod1(arg_direct?arg:BufferFactory.getArray(arg),
+        //                  arg_direct?BufferFactory.getDirectBufferByteOffset(arg):BufferFactory.getIndirectBufferByteOffset(arg),
+        //                  arg_direct,
+        //                  ... );
+        //     }
+        //     private native void fooMethod1(Object arg, int arg_byte_offset, boolean arg_is_direct, ...);
+        //
+        // Note in particular that the public entry point taking an
+        // array is merely a special case of the indirect buffer case.
+
+        if (cfg.emitInterface()) {
+          generatePublicEmitters(binding, allEmitters, true);
+        }
+        if (cfg.emitImpl()) {
+          generatePublicEmitters(binding, allEmitters, false);
+          generatePrivateEmitters(binding, allEmitters);
+        }
+      } // end iteration over expanded bindings
+    } catch (Exception e) {
+      throw new RuntimeException("Error while generating bindings for \"" + sym + "\"", e);
+    }
+
+    return allEmitters;
+  }
+
+
+  public void endFunctions() throws Exception {
+    if (!cfg.structsOnly()) {
+        if (cfg.allStatic() || cfg.emitInterface()) {
+            emitCustomJavaCode(javaWriter(), cfg.className());
+        }
+        if (!cfg.allStatic() && cfg.emitImpl()) {
+            emitCustomJavaCode(javaImplWriter(), cfg.implClassName());
+        }
+    }
+  }
+
+  public void beginStructLayout() throws Exception {}
+  public void layoutStruct(CompoundType t) throws Exception {
+    getLayout().layout(t);
+  }
+  public void endStructLayout() throws Exception {}
+
+  public void beginStructs(TypeDictionary typedefDictionary,
+                           TypeDictionary structDictionary,
+                           Map<Type, Type> canonMap) throws Exception {
+    this.typedefDictionary = typedefDictionary;
+    this.structDictionary  = structDictionary;
+    this.canonMap          = canonMap;
+  }
+
+  public void emitStruct(CompoundType structType, String alternateName) throws Exception {
+    // Emit abstract base class delegating to 32-bit or 64-bit implementations
+    emitStructImpl(structType, alternateName, machDesc32, machDesc64, true, false);
+    // Emit concrete implementing class for each variant
+    emitStructImpl(structType, alternateName, machDesc32, machDesc64, false, true);
+    emitStructImpl(structType, alternateName, machDesc32, machDesc64, false, false);
+  }
+
+  public void emitStructImpl(CompoundType structType,
+                             String alternateName,
+                             MachineDescription md32,
+                             MachineDescription md64,
+                             boolean doBaseClass,
+                             boolean do32Bit) throws Exception {
+    String name = structType.getName();
+    if (name == null && alternateName != null) {
+      name = alternateName;
+    }
+
+    if (name == null) {
+        LOG.log(WARNING, "skipping emission of unnamed struct \"{0}\"", structType);
+        return;
+    }
+
+    if (cfg.shouldIgnoreInInterface(name)) {
+      return;
+    }
+
+    Type containingCType = canonicalize(new PointerType(SizeThunk.POINTER, structType, 0));
+    JavaType containingType = typeToJavaType(containingCType, false, null);
+    if (!containingType.isCompoundTypeWrapper()) {
+      return;
+    }
+    String containingTypeName = containingType.getName();
+
+    if ((md32 == null) || (md64 == null)) {
+      throw new RuntimeException("Must supply both 32- and 64-bit MachineDescriptions to emitStructImpl");
+    }
+    String suffix = "";
+
+    // The "external" MachineDescription is the one used to determine
+    // the sizes of the primitive types seen in the public API. For
+    // example, if a C long is an element of a struct, it is the size
+    // of a Java int on a 32-bit machine but the size of a Java long
+    // on a 64-bit machine. To support both of these sizes with the
+    // same API, the abstract base class must take and return a Java
+    // long from the setter and getter for this field. However the
+    // implementation on a 32-bit platform must downcast this to an
+    // int and set only an int's worth of data in the struct. The
+    // "internal" MachineDescription is the one used to determine how
+    // much data to set in or get from the struct and exactly from
+    // where it comes.
+    //
+    // Note that the 64-bit MachineDescription is always used as the
+    // external MachineDescription.
+
+    MachineDescription extMachDesc = md64;
+    MachineDescription intMachDesc = null;
+
+    if (!doBaseClass) {
+      if (do32Bit) {
+        intMachDesc = md32;
+        suffix = "32";
+      } else {
+        intMachDesc = md64;
+        suffix = "64";
+      }
+    }
+
+    boolean needsNativeCode = false;
+    // Native code for calls through function pointers gets emitted
+    // into the abstract base class; Java code which accesses fields
+    // gets emitted into the concrete classes
+    if (doBaseClass) {
+      for (int i = 0; i < structType.getNumFields(); i++) {
+        if (structType.getField(i).getType().isFunctionPointer()) {
+          needsNativeCode = true;
+          break;
+        }
+      }
+    }
+
+    String structClassPkg = cfg.packageForStruct(name);
+    PrintWriter writer = null;
+    PrintWriter newWriter = null;
+    try  {
+      writer = openFile(
+        cfg.javaOutputDir() + File.separator +
+        CodeGenUtils.packageAsPath(structClassPkg) +
+        File.separator + containingTypeName + suffix + ".java");
+      CodeGenUtils.emitAutogeneratedWarning(writer, this);
+      if (needsNativeCode) {
+        String nRoot = cfg.nativeOutputDir();
+        if (cfg.nativeOutputUsesJavaHierarchy()) {
+          nRoot += File.separator + CodeGenUtils.packageAsPath(cfg.packageName());
+        }
+        newWriter = openFile(nRoot + File.separator + containingTypeName + "_JNI.c");
+        CodeGenUtils.emitAutogeneratedWarning(newWriter, this);
+        emitCHeader(newWriter, containingTypeName);
+      }
+    } catch(Exception e)   {
+      throw new RuntimeException("Unable to open files for emission of struct class", e);
+    }
+
+    writer.println();
+    writer.println("package " + structClassPkg + ";");
+    writer.println();
+    writer.println("import java.nio.*;");
+    writer.println();
+
+    writer.println("import " + cfg.gluegenRuntimePackage() + ".*;");
+    writer.println("import " + DynamicLookupHelper.class.getPackage().getName() + ".*;");
+    writer.println("import " + Buffers.class.getPackage().getName() + ".*;");
+    writer.println();
+    List<String> imports = cfg.imports();
+    for (String str : imports) {
+      writer.print("import ");
+      writer.print(str);
+      writer.println(";");
+    }
+    writer.println();
+    List<String> javadoc = cfg.javadocForClass(containingTypeName);
+    for (String doc : javadoc) {
+      writer.println(doc);
+    }
+    writer.print((doBaseClass ? "public " : "") + (doBaseClass ? "abstract " : "") + "class " + containingTypeName + suffix + " ");
+    if (!doBaseClass) {
+      writer.print("extends " + containingTypeName + " ");
+    }
+    boolean firstIteration = true;
+    List<String> userSpecifiedInterfaces = cfg.implementedInterfaces(containingTypeName);
+    for (String userInterface : userSpecifiedInterfaces) {
+      if (firstIteration) {
+        writer.print("implements ");
+      }
+      firstIteration = false;
+      writer.print(userInterface);
+      writer.print(" ");
+    }
+    writer.println("{");
+    writer.println();
+    if (doBaseClass) {
+      writer.println("  StructAccessor accessor;");
+      writer.println();
+    }
+
+    writer.println("  public static int size() {");
+    if (doBaseClass) {
+      writer.println("    if (Platform.is32Bit()) {");
+      writer.println("      return " + containingTypeName + "32" + ".size();");
+      writer.println("    } else {");
+      writer.println("      return " + containingTypeName + "64" + ".size();");
+      writer.println("    }");
+    } else {
+      writer.println("    return " + structType.getSize(intMachDesc) + ";");
+    }
+    writer.println("  }");
+    writer.println();
+    if (doBaseClass) {
+      writer.println("  public static " + containingTypeName + " create() {");
+      writer.println("    return create(Buffers.newDirectByteBuffer(size()));");
+      writer.println("  }");
+      writer.println();
+      writer.println("  public static " + containingTypeName + " create(java.nio.ByteBuffer buf) {");
+      writer.println("    if (Platform.is32Bit()) {");
+      writer.println("      return new " + containingTypeName + "32(buf);");
+      writer.println("    } else {");
+      writer.println("      return new " + containingTypeName + "64(buf);");
+      writer.println("    }");
+      writer.println("  }");
+      writer.println();
+      writer.println("  " + containingTypeName + "(java.nio.ByteBuffer buf) {");
+      writer.println("    accessor = new StructAccessor(buf);");
+      writer.println("  }");
+      writer.println();
+      writer.println("  public java.nio.ByteBuffer getBuffer() {");
+      writer.println("    return accessor.getBuffer();");
+      writer.println("  }");
+    } else {
+      writer.println("  " + containingTypeName + suffix + "(java.nio.ByteBuffer buf) {");
+      writer.println("    super(buf);");
+      writer.println("  }");
+      writer.println();
+    }
+    for (int i = 0; i < structType.getNumFields(); i++) {
+
+      Field field = structType.getField(i);
+      Type fieldType = field.getType();
+
+      if (!cfg.shouldIgnoreInInterface(name + " " + field.getName())) {
+
+        String renamed = cfg.getJavaSymbolRename(field.getName());
+        String fieldName = renamed==null ? field.getName() : renamed;
+
+        if (fieldType.isFunctionPointer()) {
+
+          if (doBaseClass) {
+            try {
+              // Emit method call and associated native code
+              FunctionType   funcType     = fieldType.asPointer().getTargetType().asFunction();
+              FunctionSymbol funcSym      = new FunctionSymbol(fieldName, funcType);
+              MethodBinding  binding      = bindFunction(funcSym, containingType, containingCType, machDesc64);
+              binding.findThisPointer(); // FIXME: need to provide option to disable this on per-function basis
+              writer.println();
+
+              // Emit public Java entry point for calling this function pointer
+              JavaMethodBindingEmitter emitter =
+                new JavaMethodBindingEmitter(binding,
+                                             writer,
+                                             cfg.runtimeExceptionType(),
+                                             cfg.unsupportedExceptionType(),
+                                             true,
+                                             cfg.tagNativeBinding(),
+                                             false,
+                                             true, // FIXME: should unify this with the general emission code
+                                             false,
+                                             false, // FIXME: should unify this with the general emission code
+                                             false, // FIXME: should unify this with the general emission code
+                                             false, // FIXME: should unify this with the general emission code
+                                             false,
+                                             cfg);
+              emitter.addModifier(JavaMethodBindingEmitter.PUBLIC);
+              emitter.emit();
+
+              // Emit private native Java entry point for calling this function pointer
+              emitter =
+                new JavaMethodBindingEmitter(binding,
+                                             writer,
+                                             cfg.runtimeExceptionType(),
+                                             cfg.unsupportedExceptionType(),
+                                             false,
+                                             cfg.tagNativeBinding(),
+                                             true,
+                                             true, // FIXME: should unify this with the general emission code
+                                             true,
+                                             true, // FIXME: should unify this with the general emission code
+                                             false, // FIXME: should unify this with the general emission code
+                                             false, // FIXME: should unify this with the general emission code
+                                             false,
+                                             cfg);
+              emitter.addModifier(JavaMethodBindingEmitter.PRIVATE);
+              emitter.addModifier(JavaMethodBindingEmitter.NATIVE);
+              emitter.emit();
+
+              // Emit (private) C entry point for calling this function pointer
+              CMethodBindingEmitter cEmitter =
+                new CMethodBindingEmitter(binding,
+                                          newWriter,
+                                          structClassPkg,
+                                          containingTypeName,
+                                          true, // FIXME: this is optional at this point
+                                          false,
+                                          true,
+                                          false, // FIXME: should unify this with the general emission code
+                                          machDesc64);
+              prepCEmitter(binding, cEmitter);
+              cEmitter.emit();
+            } catch (Exception e) {
+              System.err.println("While processing field " + field + " of type " + name + ":");
+              throw(e);
+            }
+          }
+        } else if (fieldType.isCompound()) {
+          // FIXME: will need to support this at least in order to
+          // handle the union in jawt_Win32DrawingSurfaceInfo (fabricate
+          // a name?)
+          if (fieldType.getName() == null) {
+            throw new RuntimeException("Anonymous structs as fields not supported yet (field \"" +
+                                       field + "\" in type \"" + name + "\")");
+          }
+
+          writer.println();
+          generateGetterSignature(writer, doBaseClass, fieldType.getName(), capitalizeString(fieldName));
+          if (doBaseClass) {
+            writer.println(";");
+          } else {
+            writer.println(" {");
+            writer.println("    return " + fieldType.getName() + ".create(accessor.slice(" +
+                           field.getOffset(intMachDesc) + ", " + fieldType.getSize(intMachDesc) + "));");
+            writer.println("  }");
+          }
+
+        } else if (fieldType.isArray()) {
+
+            Type baseElementType = field.getType().asArray().getBaseElementType();
+
+            if(!baseElementType.isPrimitive())
+                break;
+
+            String paramType = typeToJavaType(baseElementType, false, extMachDesc).getName();
+            String capitalized = capitalizeString(fieldName);
+
+            int slot = -1;
+            if(!doBaseClass) {
+              slot = slot(fieldType, (int) field.getOffset(intMachDesc), intMachDesc);
+            }
+
+            // Setter
+            writer.println();
+            generateSetterSignature(writer, doBaseClass, containingTypeName, capitalized, paramType+"[]");
+            if (doBaseClass) {
+              writer.println(";");
+            } else {
+              writer.println(" {");
+              writer.print  ("    accessor.set" + capitalizeString(paramType) + "sAt(" + slot + ", ");
+              writer.println("val);");
+              writer.println("    return this;");
+              writer.println("  }");
+            }
+            writer.println();
+            // Getter
+            generateGetterSignature(writer, doBaseClass, paramType+"[]", capitalized);
+            if (doBaseClass) {
+              writer.println(";");
+            } else {
+              writer.println(" {");
+              writer.print  ("    return ");
+              writer.println("accessor.get" + capitalizeString(paramType) + "sAt(" + slot + ", new " +paramType+"["+fieldType.asArray().getLength()+"]);");
+              writer.println("  }");
+            }
+
+        } else {
+          JavaType internalJavaType = null;
+          JavaType externalJavaType = null;
+
+          try {
+            externalJavaType = typeToJavaType(fieldType, false, extMachDesc);
+            if (!doBaseClass) {
+              internalJavaType = typeToJavaType(fieldType, false, intMachDesc);
+            }
+          } catch (Exception e) {
+            System.err.println("Error occurred while creating accessor for field \"" +
+                               field.getName() + "\" in type \"" + name + "\"");
+            throw(e);
+          }
+          if (externalJavaType.isPrimitive()) {
+            // Primitive type
+            String externalJavaTypeName = null;
+            String internalJavaTypeName = null;
+            externalJavaTypeName = externalJavaType.getName();
+            if (!doBaseClass) {
+              internalJavaTypeName = internalJavaType.getName();
+            }
+            if (isOpaque(fieldType)) {
+              externalJavaTypeName = compatiblePrimitiveJavaTypeName(fieldType, externalJavaType, extMachDesc);
+              if (!doBaseClass) {
+                internalJavaTypeName = compatiblePrimitiveJavaTypeName(fieldType, internalJavaType, intMachDesc);
+              }
+            }
+            String capitalized = null;
+            if (!doBaseClass) {
+              capitalized = capitalizeString(internalJavaTypeName);
+            }
+            int slot = -1;
+            if (!doBaseClass) {
+              slot = slot(fieldType, (int) field.getOffset(intMachDesc), intMachDesc);
+            }
+            writer.println();
+            String capitalizedFieldName = capitalizeString(fieldName);
+            // Setter
+            generateSetterSignature(writer, doBaseClass, containingTypeName, capitalizedFieldName, externalJavaTypeName);
+            if (doBaseClass) {
+              writer.println(";");
+            } else {
+              writer.println(" {");
+              writer.print  ("    accessor.set" + capitalized + "At(" + slot + ", ");
+              if (!externalJavaTypeName.equals(internalJavaTypeName)) {
+                writer.print("(" + internalJavaTypeName + ") ");
+              }
+              writer.println("val);");
+              writer.println("    return this;");
+              writer.println("  }");
+            }
+            writer.println();
+            // Getter
+            generateGetterSignature(writer, doBaseClass, externalJavaTypeName, capitalizedFieldName);
+            if (doBaseClass) {
+              writer.println(";");
+            } else {
+              writer.println(" {");
+              writer.print  ("    return ");
+              if (!externalJavaTypeName.equals(internalJavaTypeName)) {
+                writer.print("(" + externalJavaTypeName + ") ");
+              }
+              writer.println("accessor.get" + capitalized + "At(" + slot + ");");
+              writer.println("  }");
+            }
+          } else {
+            // FIXME
+            LOG.log(WARNING, "Complicated fields (field \"{0}\" of type \"{1}\") not implemented yet", new Object[]{field, name});
+            //          throw new RuntimeException("Complicated fields (field \"" + field + "\" of type \"" + t +
+            //                                     "\") not implemented yet");
+          }
+        }
+      }
+    }
+    if (doBaseClass) {
+      emitCustomJavaCode(writer, containingTypeName);
+    }
+    writer.println("}");
+    writer.flush();
+    writer.close();
+    if (needsNativeCode) {
+      newWriter.flush();
+      newWriter.close();
+    }
+  }
+  public void endStructs() throws Exception {}
+
+  public static int addStrings2Buffer(StringBuilder buf, String sep, String first, Collection<String> col) {
+    int num = 0;
+    if(null==buf) {
+        buf = new StringBuilder();
+    }
+
+    Iterator<String> iter = col.iterator();
+    if(null!=first) {
+        buf.append(first);
+        if( iter.hasNext() ) {
+            buf.append(sep);
+        }
+        num++;
+    }
+    while( iter.hasNext() ) {
+        buf.append(iter.next());
+        if( iter.hasNext() ) {
+            buf.append(sep);
+        }
+        num++;
+    }
+    return num;
+  }
+
+  //----------------------------------------------------------------------
+  // Internals only below this point
+  //
+
+    private void generateGetterSignature(PrintWriter writer, boolean baseClass, String returnTypeName, String capitalizedFieldName) {
+        writer.print("  public " + (baseClass ? "abstract " : "") + returnTypeName + " get" + capitalizedFieldName + "()");
+    }
+
+    private void generateSetterSignature(PrintWriter writer, boolean baseClass, String returnTypeName, String capitalizedFieldName, String paramTypeName) {
+        writer.print("  public " + (baseClass ? "abstract " : "") + returnTypeName + " set" + capitalizedFieldName + "(" + paramTypeName + " val)");
+    }
+
+  private JavaType typeToJavaType(Type cType, boolean outgoingArgument, MachineDescription curMachDesc) {
+    // Recognize JNIEnv* case up front
+    PointerType opt = cType.asPointer();
+    if ((opt != null) &&
+        (opt.getTargetType().getName() != null) &&
+        (opt.getTargetType().getName().equals("JNIEnv"))) {
+      return JavaType.createForJNIEnv();
+    }
+    Type t = cType;
+
+    // Opaque specifications override automatic conversions
+    // in case the identity is being used .. not if ptr-ptr
+    TypeInfo info = cfg.typeInfo(t, typedefDictionary);
+    if (info != null) {
+      boolean isPointerPointer = false;
+      if (t.pointerDepth() > 0 || t.arrayDimension() > 0) {
+        Type targetType; // target type
+        if (t.isPointer()) {
+          // t is <type>*, we need to get <type>
+          targetType = t.asPointer().getTargetType();
+        } else {
+          // t is <type>[], we need to get <type>
+          targetType = t.asArray().getElementType();
+        }
+        if (t.pointerDepth() == 2 || t.arrayDimension() == 2) {
+          // Get the target type of the target type (targetType was computer earlier
+          // as to be a pointer to the target type, so now we need to get its
+          // target type)
+          if (targetType.isPointer()) {
+            isPointerPointer = true;
+
+            // t is<type>**, targetType is <type>*, we need to get <type>
+            Type bottomType = targetType.asPointer().getTargetType();
+            LOG.log(INFO, "Opaque Type: {0}, targetType: {1}, bottomType: {2} is ptr-ptr", new Object[]{t, targetType, bottomType});
+          }
+        }
+      }
+      if(!isPointerPointer) {
+          return info.javaType();
+      }
+    }
+
+    if (t.isInt() || t.isEnum()) {
+      switch ((int) t.getSize(curMachDesc)) {
+       case 1:  return javaType(Byte.TYPE);
+       case 2:  return javaType(Short.TYPE);
+       case 4:  return javaType(Integer.TYPE);
+       case 8:  return javaType(Long.TYPE);
+       default: throw new RuntimeException("Unknown integer type of size " +
+                                           t.getSize(curMachDesc) + " and name " + t.getName());
+      }
+    } else if (t.isFloat()) {
+      return javaType(Float.TYPE);
+    } else if (t.isDouble()) {
+      return javaType(Double.TYPE);
+    } else if (t.isVoid()) {
+      return javaType(Void.TYPE);
+    } else {
+      if (t.pointerDepth() > 0 || t.arrayDimension() > 0) {
+        Type targetType; // target type
+        if (t.isPointer()) {
+          // t is <type>*, we need to get <type>
+          targetType = t.asPointer().getTargetType();
+        } else {
+          // t is <type>[], we need to get <type>
+          targetType = t.asArray().getElementType();
+        }
+
+        // Handle Types of form pointer-to-type or array-of-type, like
+        // char* or int[]; these are expanded out into Java primitive
+        // arrays, NIO buffers, or both in expandMethodBinding
+        if (t.pointerDepth() == 1 || t.arrayDimension() == 1) {
+          if (targetType.isVoid()) {
+            return JavaType.createForVoidPointer();
+          } else if (targetType.isInt()) {
+            // size_t and intptr_t is always a PointerBuffer since size is arch dependent
+            if ("size_t".equals(targetType.getName()) || "intptr_t".equals(targetType.getName())) {
+              return JavaType.forNIOPointerBufferClass();
+            }
+            switch ((int) targetType.getSize(curMachDesc)) {
+              case 1:  return JavaType.createForCCharPointer();
+              case 2:  return JavaType.createForCShortPointer();
+              case 4:  return JavaType.createForCInt32Pointer();
+              case 8:  return JavaType.createForCInt64Pointer();
+              default: throw new RuntimeException("Unknown integer array type of size " +
+                                                  t.getSize(curMachDesc) + " and name " + t.getName());
+            }
+          } else if (targetType.isFloat()) {
+            return JavaType.createForCFloatPointer();
+          } else if (targetType.isDouble()) {
+            return JavaType.createForCDoublePointer();
+          } else if (targetType.isCompound()) {
+            if (t.isArray()) {
+              throw new RuntimeException("Arrays of compound types not handled yet");
+            }
+            // Special cases for known JNI types (in particular for converting jawt.h)
+            if (t.getName() != null &&
+                t.getName().equals("jobject")) {
+              return javaType(java.lang.Object.class);
+            }
+
+            String name = targetType.getName();
+            if (name == null) {
+              // Try containing pointer type for any typedefs
+              name = t.getName();
+              if (name == null) {
+                throw new RuntimeException("Couldn't find a proper type name for pointer type " + t);
+              }
+            }
+
+            return JavaType.createForCStruct(cfg.renameJavaType(name));
+          } else {
+            throw new RuntimeException("Don't know how to convert pointer/array type \"" +
+                                       t + "\"");
+          }
+        }
+        // Handle Types of form pointer-to-pointer-to-type or
+        // array-of-arrays-of-type, like char** or int[][]
+        else if (t.pointerDepth() == 2 || t.arrayDimension() == 2) {
+          // Get the target type of the target type (targetType was computer earlier
+          // as to be a pointer to the target type, so now we need to get its
+          // target type)
+          Type bottomType;
+          if (targetType.isPointer()) {
+            // t is<type>**, targetType is <type>*, we need to get <type>
+            bottomType = targetType.asPointer().getTargetType();
+            return JavaType.forNIOPointerBufferClass();
+          } else {
+            // t is<type>[][], targetType is <type>[], we need to get <type>
+            bottomType = targetType.asArray().getElementType();
+            LOG.log(WARNING, "typeToJavaType(ptr-ptr): {0}, targetType: {1}, bottomType: {2} -> Unhandled!", new Object[]{t, targetType, bottomType});
+          }
+
+          // Warning: The below code is not backed up by an implementation,
+          //          the only working variant is a ptr-ptr type which results in a PointerBuffer.
+          //
+          if (bottomType.isPrimitive()) {
+            if (bottomType.isInt()) {
+              switch ((int) bottomType.getSize(curMachDesc)) {
+                case 1: return javaType(ArrayTypes.byteBufferArrayClass);
+                case 2: return javaType(ArrayTypes.shortBufferArrayClass);
+                case 4: return javaType(ArrayTypes.intBufferArrayClass);
+                case 8: return javaType(ArrayTypes.longBufferArrayClass);
+                default: throw new RuntimeException("Unknown two-dimensional integer array type of element size " +
+                                                    bottomType.getSize(curMachDesc) + " and name " + bottomType.getName());
+              }
+            } else if (bottomType.isFloat()) {
+              return javaType(ArrayTypes.floatBufferArrayClass);
+            } else if (bottomType.isDouble()) {
+              return javaType(ArrayTypes.doubleBufferArrayClass);
+            } else {
+              throw new RuntimeException("Unexpected primitive type " + bottomType.getName() +
+                                         " in two-dimensional array");
+            }
+          } else if (bottomType.isVoid()) {
+            return javaType(ArrayTypes.bufferArrayClass);
+          } else if (targetType.isPointer() && (targetType.pointerDepth() == 1) &&
+                     targetType.asPointer().getTargetType().isCompound()) {
+            // Array of pointers; convert as array of StructAccessors
+            return JavaType.createForCArray(bottomType);
+          } else {
+            throw new RuntimeException(
+              "Could not convert C type \"" + t + "\" " +
+              "to appropriate Java type; need to add more support for " +
+              "depth=2 pointer/array types [debug info: targetType=\"" +
+              targetType + "\"]");
+          }
+        } else {
+          // can't handle this type of pointer/array argument
+          throw new RuntimeException(
+            "Could not convert C pointer/array \"" + t + "\" to " +
+            "appropriate Java type; types with pointer/array depth " +
+            "greater than 2 are not yet supported [debug info: " +
+            "pointerDepth=" + t.pointerDepth() + " arrayDimension=" +
+            t.arrayDimension() + " targetType=\"" + targetType + "\"]");
+        }
+
+      } else {
+        throw new RuntimeException(
+          "Could not convert C type \"" + t + "\" (class " +
+          t.getClass().getName() + ") to appropriate Java type");
+      }
+    }
+  }
+
+  private static boolean isIntegerType(Class<?> c) {
+    return ((c == Byte.TYPE) ||
+            (c == Short.TYPE) ||
+            (c == Character.TYPE) ||
+            (c == Integer.TYPE) ||
+            (c == Long.TYPE));
+  }
+
+  private int slot(Type t, int byteOffset, MachineDescription curMachDesc) {
+    if (t.isInt()) {
+      switch ((int) t.getSize(curMachDesc)) {
+       case 1:
+       case 2:
+       case 4:
+       case 8:  return byteOffset / (int) t.getSize(curMachDesc);
+       default: throw new RuntimeException("Illegal type");
+      }
+    } else if (t.isFloat()) {
+      return byteOffset / 4;
+    } else if (t.isDouble()) {
+      return byteOffset / 8;
+    } else if (t.isPointer()) {
+      return byteOffset / curMachDesc.pointerSizeInBytes();
+    } else if (t.isArray()) {
+      return slot(t.asArray().getBaseElementType(), byteOffset, curMachDesc);
+    } else {
+      throw new RuntimeException("Illegal type " + t);
+    }
+  }
+
+  private StructLayout getLayout() {
+    if (layout == null) {
+      layout = StructLayout.createForCurrentPlatform();
+    }
+    return layout;
+  }
+
+  protected PrintWriter openFile(String filename) throws IOException {
+    //System.out.println("Trying to open: " + filename);
+    File file = new File(filename);
+    String parentDir = file.getParent();
+    if (parentDir != null)
+    {
+      File pDirFile = new File(parentDir);
+      pDirFile.mkdirs();
+    }
+    return new PrintWriter(new BufferedWriter(new FileWriter(file)));
+  }
+
+  private boolean isOpaque(Type type) {
+    return (cfg.typeInfo(type, typedefDictionary) != null);
+  }
+
+  private String compatiblePrimitiveJavaTypeName(Type fieldType,
+                                                 JavaType javaType,
+                                                 MachineDescription curMachDesc) {
+    Class<?> c = javaType.getJavaClass();
+    if (!isIntegerType(c)) {
+      // FIXME
+      throw new RuntimeException("Can't yet handle opaque definitions of structs' fields to non-integer types (byte, short, int, long, etc.)");
+    }
+    switch ((int) fieldType.getSize(curMachDesc)) {
+      case 1:  return "byte";
+      case 2:  return "short";
+      case 4:  return "int";
+      case 8:  return "long";
+      default: throw new RuntimeException("Can't handle opaque definitions if the starting type isn't compatible with integral types");
+    }
+  }
+
+  private void openWriters() throws IOException {
+    String jRoot = null;
+    if (cfg.allStatic() || cfg.emitInterface()) {
+      jRoot = cfg.javaOutputDir() + File.separator +
+        CodeGenUtils.packageAsPath(cfg.packageName());
+    }
+    String jImplRoot = null;
+    if (!cfg.allStatic()) {
+      jImplRoot =
+        cfg.javaOutputDir() + File.separator +
+        CodeGenUtils.packageAsPath(cfg.implPackageName());
+    }
+    String nRoot = cfg.nativeOutputDir();
+    if (cfg.nativeOutputUsesJavaHierarchy())
+    {
+      nRoot +=
+        File.separator + CodeGenUtils.packageAsPath(cfg.packageName());
+    }
+
+    if (cfg.allStatic() || cfg.emitInterface()) {
+      javaWriter = openFile(jRoot + File.separator + cfg.className() + ".java");
+    }
+    if (!cfg.allStatic() && cfg.emitImpl()) {
+      javaImplWriter = openFile(jImplRoot + File.separator + cfg.implClassName() + ".java");
+    }
+    if (cfg.emitImpl()) {
+      cWriter = openFile(nRoot + File.separator + cfg.implClassName() + "_JNI.c");
+    }
+
+    if (javaWriter != null) {
+      CodeGenUtils.emitAutogeneratedWarning(javaWriter, this);
+    }
+    if (javaImplWriter != null) {
+      CodeGenUtils.emitAutogeneratedWarning(javaImplWriter, this);
+    }
+    if (cWriter != null) {
+      CodeGenUtils.emitAutogeneratedWarning(cWriter, this);
+    }
+  }
+
+  protected PrintWriter javaWriter() {
+    if (!cfg.allStatic() && !cfg.emitInterface()) {
+      throw new InternalError("Should not call this");
+    }
+    return javaWriter;
+  }
+
+  protected PrintWriter javaImplWriter() {
+    if (cfg.allStatic() || !cfg.emitImpl()) {
+      throw new InternalError("Should not call this");
+    }
+    return javaImplWriter;
+  }
+
+  protected PrintWriter cWriter() {
+    if (!cfg.emitImpl()) {
+      throw new InternalError("Should not call this");
+    }
+    return cWriter;
+  }
+
+  private void closeWriter(PrintWriter writer) throws IOException {
+    writer.flush();
+    writer.close();
+  }
+
+  private void closeWriters() throws IOException {
+    if (javaWriter != null) {
+      closeWriter(javaWriter);
+    }
+    if (javaImplWriter != null) {
+      closeWriter(javaImplWriter);
+    }
+    if (cWriter != null) {
+      closeWriter(cWriter);
+    }
+    javaWriter = null;
+    javaImplWriter = null;
+    cWriter = null;
+  }
+
+  /**
+   * Returns the value that was specified by the configuration directive
+   * "JavaOutputDir", or the default if none was specified.
+   */
+  protected String getJavaOutputDir() {
+    return cfg.javaOutputDir();
+  }
+
+  /**
+   * Returns the value that was specified by the configuration directive
+   * "Package", or the default if none was specified.
+   */
+  protected String getJavaPackageName() {
+    return cfg.packageName();
+  }
+
+  /**
+   * Returns the value that was specified by the configuration directive
+   * "ImplPackage", or the default if none was specified.
+   */
+  protected String getImplPackageName() {
+    return cfg.implPackageName();
+  }
+
+  /**
+   * Emit all the strings specified in the "CustomJavaCode" parameters of
+   * the configuration file.
+   */
+  protected void emitCustomJavaCode(PrintWriter writer, String className) throws Exception  {
+    List<String> code = cfg.customJavaCodeForClass(className);
+    if (code.isEmpty())
+      return;
+
+    writer.println();
+    writer.println("  // --- Begin CustomJavaCode .cfg declarations");
+    for (String line : code) {
+      writer.println(line);
+    }
+    writer.println("  // ---- End CustomJavaCode .cfg declarations");
+  }
+
+  /**
+   * Write out any header information for the output files (class declaration
+   * and opening brace, import statements, etc).
+   */
+  protected void emitAllFileHeaders() throws IOException {
+    try {
+        List<String> imports = new ArrayList<String>(cfg.imports());
+        imports.add(cfg.gluegenRuntimePackage()+".*");
+        imports.add(DynamicLookupHelper.class.getPackage().getName()+".*");
+        imports.add(Buffers.class.getPackage().getName()+".*");
+        imports.add(Buffer.class.getPackage().getName()+".*");
+
+      if (cfg.allStatic() || cfg.emitInterface()) {
+
+        String[] interfaces;
+        List<String> userSpecifiedInterfaces = null;
+        if (cfg.emitInterface()) {
+          userSpecifiedInterfaces = cfg.extendedInterfaces(cfg.className());
+        } else {
+          userSpecifiedInterfaces = cfg.implementedInterfaces(cfg.className());
+        }
+        interfaces = new String[userSpecifiedInterfaces.size()];
+        userSpecifiedInterfaces.toArray(interfaces);
+
+        final List<String> intfDocs = cfg.javadocForClass(cfg.className());
+        CodeGenUtils.EmissionCallback docEmitter =
+          new CodeGenUtils.EmissionCallback() {
+            public void emit(PrintWriter w) {
+              for (Iterator iter = intfDocs.iterator(); iter.hasNext(); ) {
+                w.println((String) iter.next());
+              }
+            }
+          };
+
+        String[] accessModifiers = null;
+        if(cfg.accessControl(cfg.className()) == PUBLIC_ABSTRACT) {
+            accessModifiers = new String[] { "public", "abstract" };
+        } else {
+            accessModifiers = new String[] { "public" };
+        }
+
+        CodeGenUtils.emitJavaHeaders(
+          javaWriter,
+          cfg.packageName(),
+          cfg.className(),
+          cfg.allStatic() ? true : false,
+          imports,
+          accessModifiers,
+          interfaces,
+          cfg.extendedParentClass(cfg.className()),
+          docEmitter);
+      }
+
+      if (!cfg.allStatic() && cfg.emitImpl()) {
+        final List<String> implDocs = cfg.javadocForClass(cfg.implClassName());
+        CodeGenUtils.EmissionCallback docEmitter =
+          new CodeGenUtils.EmissionCallback() {
+            public void emit(PrintWriter w) {
+              for (Iterator iter = implDocs.iterator(); iter.hasNext(); ) {
+                w.println((String) iter.next());
+              }
+            }
+          };
+
+        String[] interfaces;
+        List<String> userSpecifiedInterfaces = null;
+        userSpecifiedInterfaces = cfg.implementedInterfaces(cfg.implClassName());
+        int additionalNum = 0;
+        if (cfg.className() != null) {
+          additionalNum = 1;
+        }
+        interfaces = new String[additionalNum + userSpecifiedInterfaces.size()];
+        userSpecifiedInterfaces.toArray(interfaces);
+        if (additionalNum == 1) {
+          interfaces[userSpecifiedInterfaces.size()] = cfg.className();
+        }
+
+        String[] accessModifiers = null;
+        if(cfg.accessControl(cfg.implClassName()) == PUBLIC_ABSTRACT) {
+            accessModifiers = new String[] { "public", "abstract" };
+        } else {
+            accessModifiers = new String[] { "public" };
+        }
+
+        CodeGenUtils.emitJavaHeaders(
+          javaImplWriter,
+          cfg.implPackageName(),
+          cfg.implClassName(),
+          true,
+          imports,
+          accessModifiers,
+          interfaces,
+          cfg.extendedParentClass(cfg.implClassName()),
+          docEmitter);
+      }
+
+      if (cfg.emitImpl()) {
+        emitCHeader(cWriter(), cfg.implClassName());
+      }
+    } catch (Exception e) {
+      throw new RuntimeException(
+        "Error emitting all file headers: cfg.allStatic()=" + cfg.allStatic() +
+        " cfg.emitImpl()=" + cfg.emitImpl() + " cfg.emitInterface()=" + cfg.emitInterface(),
+        e);
+    }
+
+  }
+
+  protected void emitCHeader(PrintWriter cWriter, String className) {
+    cWriter.println("#include <jni.h>");
+    cWriter.println("#include <stdlib.h>");
+    cWriter.println();
+
+    if (getConfig().emitImpl()) {
+      cWriter.println("#include <assert.h>");
+      cWriter.println();
+    }
+
+    for (String code : cfg.customCCode()) {
+      cWriter.println(code);
+    }
+    cWriter.println();
+  }
+
+  /**
+   * Write out any footer information for the output files (closing brace of
+   * class definition, etc).
+   */
+  protected void emitAllFileFooters(){
+    if (cfg.allStatic() || cfg.emitInterface()) {
+      javaWriter().println();
+      javaWriter().println("} // end of class " + cfg.className());
+    }
+    if (!cfg.allStatic() && cfg.emitImpl())  {
+      javaImplWriter().println();
+      javaImplWriter().println("} // end of class " + cfg.implClassName());
+    }
+  }
+
+  private JavaType javaType(Class<?> c) {
+    return JavaType.createForClass(c);
+  }
+
+  /** Maps the C types in the specified function to Java types through
+      the MethodBinding interface. Note that the JavaTypes in the
+      returned MethodBinding are "intermediate" JavaTypes (some
+      potentially representing C pointers rather than true Java types)
+      and must be lowered to concrete Java types before creating
+      emitters for them. */
+  private MethodBinding bindFunction(FunctionSymbol sym,
+                                     JavaType containingType,
+                                     Type containingCType,
+                                     MachineDescription curMachDesc) {
+
+    MethodBinding binding = new MethodBinding(sym, containingType, containingCType);
+
+    binding.renameMethodName(cfg.getJavaSymbolRename(sym.getName()));
+
+    // System.out.println("bindFunction(0) "+sym.getReturnType());
+
+    if (cfg.returnsString(binding.getName())) {
+      PointerType prt = sym.getReturnType().asPointer();
+      if (prt == null ||
+          prt.getTargetType().asInt() == null ||
+          prt.getTargetType().getSize(curMachDesc) != 1) {
+        throw new RuntimeException(
+          "Cannot apply ReturnsString configuration directive to \"" + sym +
+          "\". ReturnsString requires native method to have return type \"char *\"");
+      }
+      binding.setJavaReturnType(javaType(java.lang.String.class));
+    } else {
+      binding.setJavaReturnType(typeToJavaType(sym.getReturnType(), false, curMachDesc));
+    }
+
+    // System.out.println("bindFunction(1) "+binding.getJavaReturnType());
+
+    // List of the indices of the arguments in this function that should be
+    // converted from byte[] or short[] to String
+    List<Integer> stringArgIndices = cfg.stringArguments(binding.getName());
+
+    for (int i = 0; i < sym.getNumArguments(); i++) {
+      Type cArgType = sym.getArgumentType(i);
+      JavaType mappedType = typeToJavaType(cArgType, true, curMachDesc);
+      // System.out.println("C arg type -> \"" + cArgType + "\"" );
+      // System.out.println("      Java -> \"" + mappedType + "\"" );
+
+      // Take into account any ArgumentIsString configuration directives that apply
+      if (stringArgIndices != null && stringArgIndices.contains(i)) {
+        // System.out.println("Forcing conversion of " + binding.getName() + " arg #" + i + " from byte[] to String ");
+        if (mappedType.isCVoidPointerType() ||
+            mappedType.isCCharPointerType() ||
+            mappedType.isCShortPointerType() ||
+            mappedType.isNIOPointerBuffer() ||
+            (mappedType.isArray() &&
+             (mappedType.getJavaClass() == ArrayTypes.byteBufferArrayClass) ||
+             (mappedType.getJavaClass() == ArrayTypes.shortBufferArrayClass))) {
+          // convert mapped type from:
+          //   void*, byte[], and short[] to String
+          //   ByteBuffer[] and ShortBuffer[] to String[]
+          if (mappedType.isArray() || mappedType.isNIOPointerBuffer()) {
+            mappedType = javaType(ArrayTypes.stringArrayClass);
+          } else {
+            mappedType = javaType(String.class);
+          }
+        }
+        else {
+        throw new RuntimeException(
+          "Cannot apply ArgumentIsString configuration directive to " +
+          "argument " + i + " of \"" + sym + "\": argument type is not " +
+          "a \"void*\", \"char *\", \"short *\", \"char**\", or \"short**\" equivalent");
+        }
+      }
+      binding.addJavaArgumentType(mappedType);
+      //System.out.println("During binding of [" + sym + "], added mapping from C type: " + cArgType + " to Java type: " + mappedType);
+    }
+
+    // System.out.println("---> " + binding);
+    // System.out.println("    ---> " + binding.getCSymbol());
+    // System.out.println("bindFunction(3) "+binding);
+    return binding;
+  }
+
+  private MethodBinding lowerMethodBindingPointerTypes(MethodBinding inputBinding,
+                                                       boolean convertToArrays,
+                                                       boolean[] canProduceArrayVariant) {
+    MethodBinding result = inputBinding;
+    boolean arrayPossible = false;
+
+    // System.out.println("lowerMethodBindingPointerTypes(0): "+result);
+
+    for (int i = 0; i < inputBinding.getNumArguments(); i++) {
+      JavaType t = inputBinding.getJavaArgumentType(i);
+      if (t.isCPrimitivePointerType()) {
+        if (t.isCVoidPointerType()) {
+          // These are always bound to java.nio.Buffer
+          result = result.replaceJavaArgumentType(i, JavaType.forNIOBufferClass());
+        } else if (t.isCCharPointerType()) {
+          arrayPossible = true;
+          if (convertToArrays) {
+            result = result.replaceJavaArgumentType(i, javaType(ArrayTypes.byteArrayClass));
+          } else {
+            result = result.replaceJavaArgumentType(i, JavaType.forNIOByteBufferClass());
+          }
+        } else if (t.isCShortPointerType()) {
+          arrayPossible = true;
+          if (convertToArrays) {
+            result = result.replaceJavaArgumentType(i, javaType(ArrayTypes.shortArrayClass));
+          } else {
+            result = result.replaceJavaArgumentType(i, JavaType.forNIOShortBufferClass());
+          }
+        } else if (t.isCInt32PointerType()) {
+          arrayPossible = true;
+          if (convertToArrays) {
+            result = result.replaceJavaArgumentType(i, javaType(ArrayTypes.intArrayClass));
+          } else {
+            result = result.replaceJavaArgumentType(i, JavaType.forNIOIntBufferClass());
+          }
+        } else if (t.isCInt64PointerType()) {
+          arrayPossible = true;
+          if (convertToArrays) {
+            result = result.replaceJavaArgumentType(i, javaType(ArrayTypes.longArrayClass));
+          } else {
+            result = result.replaceJavaArgumentType(i, JavaType.forNIOInt64BufferClass());
+          }
+        } else if (t.isCFloatPointerType()) {
+          arrayPossible = true;
+          if (convertToArrays) {
+            result = result.replaceJavaArgumentType(i, javaType(ArrayTypes.floatArrayClass));
+          } else {
+            result = result.replaceJavaArgumentType(i, JavaType.forNIOFloatBufferClass());
+          }
+        } else if (t.isCDoublePointerType()) {
+          arrayPossible = true;
+          if (convertToArrays) {
+            result = result.replaceJavaArgumentType(i, javaType(ArrayTypes.doubleArrayClass));
+          } else {
+            result = result.replaceJavaArgumentType(i, JavaType.forNIODoubleBufferClass());
+          }
+        } else {
+          throw new RuntimeException("Unknown C pointer type " + t);
+        }
+      }
+    }
+
+    // System.out.println("lowerMethodBindingPointerTypes(1): "+result);
+
+    // Always return primitive pointer types as NIO buffers
+    JavaType t = result.getJavaReturnType();
+    if (t.isCPrimitivePointerType()) {
+      if (t.isCVoidPointerType()) {
+        result = result.replaceJavaArgumentType(-1, JavaType.forNIOByteBufferClass());
+      } else if (t.isCCharPointerType()) {
+        result = result.replaceJavaArgumentType(-1, JavaType.forNIOByteBufferClass());
+      } else if (t.isCShortPointerType()) {
+        result = result.replaceJavaArgumentType(-1, JavaType.forNIOShortBufferClass());
+      } else if (t.isCInt32PointerType()) {
+        result = result.replaceJavaArgumentType(-1, JavaType.forNIOIntBufferClass());
+      } else if (t.isCInt64PointerType()) {
+        result = result.replaceJavaArgumentType(-1, JavaType.forNIOInt64BufferClass());
+      } else if (t.isCFloatPointerType()) {
+        result = result.replaceJavaArgumentType(-1, JavaType.forNIOFloatBufferClass());
+      } else if (t.isCDoublePointerType()) {
+        result = result.replaceJavaArgumentType(-1, JavaType.forNIODoubleBufferClass());
+      } else {
+        throw new RuntimeException("Unknown C pointer type " + t);
+      }
+    }
+
+    // System.out.println("lowerMethodBindingPointerTypes(2): "+result);
+
+    if (canProduceArrayVariant != null) {
+      canProduceArrayVariant[0] = arrayPossible;
+    }
+
+    return result;
+  }
+
+  // Expands a MethodBinding containing C primitive pointer types into
+  // multiple variants taking Java primitive arrays and NIO buffers, subject
+  // to the per-function "NIO only" rule in the configuration file
+  protected List<MethodBinding> expandMethodBinding(MethodBinding binding) {
+
+    List<MethodBinding> result = new ArrayList<MethodBinding>();
+    // Indicates whether it is possible to produce an array variant
+    // Prevents e.g. char* -> String conversions from emitting two entry points
+    boolean[] canProduceArrayVariant = new boolean[1];
+
+    if (binding.signatureUsesCPrimitivePointers() ||
+        binding.signatureUsesCVoidPointers() ||
+        binding.signatureUsesCArrays()) {
+
+      result.add(lowerMethodBindingPointerTypes(binding, false, canProduceArrayVariant));
+
+      // FIXME: should add new configuration flag for this
+      if (canProduceArrayVariant[0] && (binding.signatureUsesCPrimitivePointers() || binding.signatureUsesCArrays()) &&
+          !cfg.nioDirectOnly(binding.getName()) && !cfg.nioOnly(binding.getName())) {
+        result.add(lowerMethodBindingPointerTypes(binding, true, null));
+      }
+    } else {
+      result.add(binding);
+    }
+
+    return result;
+  }
+
+  private String resultName() {
+    return "_res";
+  }
+
+  private Type canonicalize(Type t) {
+    Type res = canonMap.get(t);
+    if (res != null) {
+      return res;
+    }
+    canonMap.put(t, t);
+    return t;
+  }
+
+  /**
+   * Converts first letter to upper case.
+   */
+  private final String capitalizeString(String string) {
+      return Character.toUpperCase(string.charAt(0)) + string.substring(1);
+  }
+
+}