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Initial commit of Android support for head

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1 parent ec59eba commit 25edd4a860ea245fff58e8d946421b36d66c75fb @sattvik committed Dec 4, 2011
Showing 339 changed files with 74,193 additions and 26 deletions.
@@ -209,4 +209,13 @@
+ <dependencies>
+ <dependency>
+ <groupId></groupId>
+ <artifactId>android</artifactId>
+ <version>2.1.2</version>
+ <scope>provided</scope>
+ </dependency>
+ </dependencies>
+This program uses source code from the Dalvik eXchange from the Android Open
+Source Project which is distributed under the following terms:
+Copyright (c) 2005-2008, The Android Open Source Project
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+See the License for the specific language governing permissions and
+limitations under the License.
+ Apache License
+ Version 2.0, January 2004
+1. Definitions.
+ "License" shall mean the terms and conditions for use, reproduction,
+ and distribution as defined by Sections 1 through 9 of this document.
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+5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
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+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
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+6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
+ except as required for reasonable and customary use in describing the
+ origin of the Work and reproducing the content of the NOTICE file.
+7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
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+8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
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@@ -221,7 +221,12 @@
default: repl-caught"
[& options]
(let [cl (.getContextClassLoader (Thread/currentThread))]
- (.setContextClassLoader (Thread/currentThread) (clojure.lang.DynamicClassLoader. cl)))
+ (.setContextClassLoader (Thread/currentThread)
+ (if (= vm-type :dalvik-vm)
+ (let [cl-class (Class/forName "clojure.lang.DalvikDynamicClassLoader")
+ cl-constructor (.getConstructor cl-class (into-array [ClassLoader]))]
+ (.newInstance cl-constructor cl))
+ (clojure.lang.JvmDynamicClassLoader. cl))))
(let [{:keys [init need-prompt prompt flush read eval print caught]
:or {init #()
need-prompt (if (instance? LineNumberingPushbackReader *in*)
@@ -0,0 +1,114 @@
+/* Copyright © 2011 Sattvik Software & Technology Resources, Ltd. Co.
+ * All rights reserved.
+ *
+ * The use and distribution terms for this software are covered by the Eclipse
+ * Public License 1.0 ( which
+ * can be found in the file epl-v10.html at the root of this distribution. By
+ * using this software in any fashion, you are agreeing to be bound by the
+ * terms of this license. You must not remove this notice, or any other, from
+ * this software.
+ */
+package clojure.lang;
+import android.util.Log;
+import dalvik.system.DexFile;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+ * Dynamic class loader for the Dalvik VM.
+ *
+ * @since 1.2.0
+ * @author Daniel Solano Gómez
+ */
+public class DalvikDynamicClassLoader extends DynamicClassLoader {
+ /** Options for translation. */
+ private static final CfOptions OPTIONS = new CfOptions();
+ /** Reference to compile path var, used for generated jar files. */
+ private static final Var COMPILE_PATH =
+ RT.var("clojure.core", "*compile-path*");
+ /** Configure whether or not to use extended op codes. */
+ private static final DexOptions DEX_OPTIONS = new DexOptions();
+ static {
+ // disable name checks
+ OPTIONS.strictNameCheck = false;
+ // ensure generation of compatible DEX files
+ DEX_OPTIONS.targetApiLevel = android.os.Build.VERSION.SDK_INT;
+ }
+ /** Tag used for logging. */
+ private static final String TAG = "DalvikClojureCompiler";
+ public DalvikDynamicClassLoader() {
+ super();
+ }
+ public DalvikDynamicClassLoader(final ClassLoader parent) {
+ super(parent);
+ }
+ /**
+ * Dalvik-specific method for dynamically loading a class from JVM byte
+ * codes. As there is no easy way to translate a class from the JVM to
+ * Dalvik in-memory, this method takes a slow route through disk. This
+ * involves using a DexFile from the dx tool to translate the JVM class
+ * into a Dalvik executable. The contents of the executable must be
+ * written to disk as an entry in a zip file. This zip file is then loaded
+ * and the requested class is instantiated using the Android runtime's
+ * DexFile.
+ *
+ * @param name the name of the class to define
+ * @param bytes the JVM bytecodes for the class
+ * @param srcForm the Clojure form for the class
+ */
+ @Override
+ protected Class<?> defineMissingClass(final String name, final byte[] bytes,
+ final Object srcForm) {
+ // create dx DexFile and add translated class into it
+ final outDexFile =
+ new;
+ outDexFile.add(CfTranslator.translate("", bytes, OPTIONS, DEX_OPTIONS));
+ // get compile directory
+ final File compileDir = new File((String) COMPILE_PATH.deref());
+ try {
+ // write Dalvik executable into a temporary jar
+ final File jarFile =
+ File.createTempFile("repl-", ".jar", compileDir);
+ jarFile.deleteOnExit();
+ final ZipOutputStream jarOut =
+ new ZipOutputStream(new FileOutputStream(jarFile));
+ jarOut.putNextEntry(new ZipEntry("classes.dex"));
+ outDexFile.writeTo(jarOut, null, false);
+ jarOut.close();
+ // open the jar and create an optimized dex file
+ final String jarPath = jarFile.getAbsolutePath();
+ final String dexPath =
+ jarPath.substring(0, jarPath.lastIndexOf('.'))
+ .concat(".dex");
+ final DexFile inDexFile = DexFile.loadDex(jarPath, dexPath, 0);
+ // load the class
+ Class<?> clazz = inDexFile.loadClass(name.replace(".", "/"), this);
+ if (clazz == null) {
+ Log.e(TAG,"Failed to load generated class: "+name);
+ throw new RuntimeException(
+ "Failed to load generated class " + name + ".");
+ }
+ return clazz;
+ } catch (IOException e) {
+ Log.e(TAG,"Failed to define class due to I/O exception.",e);
+ throw new RuntimeException(e);
+ }
+ }
@@ -21,7 +21,7 @@
import java.lang.ref.ReferenceQueue;
import java.lang.ref.SoftReference;
-public class DynamicClassLoader extends URLClassLoader{
+public abstract class DynamicClassLoader extends URLClassLoader {
HashMap<Integer, Object[]> constantVals = new HashMap<Integer, Object[]>();
static ConcurrentHashMap<String, Reference<Class>>classCache =
new ConcurrentHashMap<String, Reference<Class> >();
@@ -41,13 +41,17 @@ public DynamicClassLoader(ClassLoader parent){
-public Class defineClass(String name, byte[] bytes, Object srcForm){
+public final Class defineClass(String name, byte[] bytes, Object srcForm){
Util.clearCache(rq, classCache);
- Class c = defineClass(name, bytes, 0, bytes.length);
+ Class c = defineMissingClass(name, bytes, srcForm);
classCache.put(name, new SoftReference(c,rq));
return c;
+protected abstract Class<?> defineMissingClass(final String name,
+ final byte[] bytes, final Object srcForm);
protected Class<?> findClass(String name) throws ClassNotFoundException{
Reference<Class> cr = classCache.get(name);
if(cr != null)
@@ -61,15 +65,16 @@ public Class defineClass(String name, byte[] bytes, Object srcForm){
return super.findClass(name);
-public void registerConstants(int id, Object[] val){
+public final void registerConstants(int id, Object[] val) {
constantVals.put(id, val);
-public Object[] getConstants(int id){
+public final Object[] getConstants(int id) {
return constantVals.get(id);
-public void addURL(URL url){
+public final void addURL(URL url) {
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