Add j2objc dependency

This commit is contained in:
Victor Shcherb 2012-09-20 23:50:10 +02:00
parent 97b1fc405a
commit 6bf6fcfebc
5 changed files with 819 additions and 0 deletions

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@ -9,3 +9,4 @@ local.properties
*.stillfailing *.stillfailing
*.failed *.failed
*.log *.log
j2objc

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@ -0,0 +1,8 @@
git clone https://code.google.com/p/j2objc/
cd j2objc
git apply ../j2objc.patch
mvn eclipse:eclipse
mvn -DskipTests=true install
cd ../net.osmand.translator
mvn eclipse:eclipse
mvn install

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@ -0,0 +1,42 @@
diff --git a/pom.xml b/pom.xml
index 39853de..c04fffb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -21,7 +21,7 @@
<modelVersion>4.0.0</modelVersion>
<groupId>com.google.j2objc</groupId>
<artifactId>j2objc</artifactId>
- <packaging>pom</packaging>
+ <packaging>jar</packaging>
<version>0.8</version>
<name>j2objc</name>
<url>https://code.google.com/p/j2objc/</url>
@@ -29,6 +29,15 @@
<build>
<directory>build_result</directory>
<plugins>
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-compiler-plugin</artifactId>
+ <version>2.0.2</version>
+ <configuration>
+ <source>1.5</source>
+ <target>1.5</target>
+ </configuration>
+ </plugin>
<!-- Copy dependent jars -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
diff --git a/src/main/java/com/google/devtools/j2objc/Plugin.java b/src/main/java/com/google/devtools/j2objc/Plugin.java
index 4f1f883..40b0985 100644
--- a/src/main/java/com/google/devtools/j2objc/Plugin.java
+++ b/src/main/java/com/google/devtools/j2objc/Plugin.java
@@ -40,7 +40,7 @@ public abstract class Plugin {
* options and interpret them differently. Called before any processing is
* started.
*/
- void initPlugin(String pluginOptions) throws IOException {
+ public void initPlugin(String pluginOptions) throws IOException {
String[] optionComponents = pluginOptions.split(",");
for (String option : optionComponents) {

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@ -49,6 +49,12 @@
</build> </build>
<dependencies> <dependencies>
<dependency>
<groupId>com.google.j2objc</groupId>
<artifactId>j2objc</artifactId>
<version>0.8</version>
<scope>compile</scope>
</dependency>
<dependency> <dependency>
<groupId>com.google.guava</groupId> <groupId>com.google.guava</groupId>
<artifactId>guava</artifactId> <artifactId>guava</artifactId>

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@ -0,0 +1,762 @@
package net.osmand.translator;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.nio.charset.Charset;
import java.text.DateFormat;
import java.util.Date;
import java.util.Enumeration;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.jar.JarEntry;
import java.util.jar.JarInputStream;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.zip.ZipEntry;
import java.util.zip.ZipException;
import java.util.zip.ZipFile;
import org.eclipse.jdt.core.compiler.IProblem;
import org.eclipse.jdt.core.dom.AST;
import org.eclipse.jdt.core.dom.ASTNode;
import org.eclipse.jdt.core.dom.ASTParser;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.Document;
import org.eclipse.text.edits.MalformedTreeException;
import org.eclipse.text.edits.TextEdit;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Charsets;
import com.google.common.collect.Lists;
import com.google.common.io.CharStreams;
import com.google.common.io.Files;
import com.google.devtools.j2objc.Options;
import com.google.devtools.j2objc.Plugin;
import com.google.devtools.j2objc.gen.ObjectiveCHeaderGenerator;
import com.google.devtools.j2objc.gen.ObjectiveCImplementationGenerator;
import com.google.devtools.j2objc.sym.Symbols;
import com.google.devtools.j2objc.translate.AnonymousClassConverter;
import com.google.devtools.j2objc.translate.Autoboxer;
import com.google.devtools.j2objc.translate.DeadCodeEliminator;
import com.google.devtools.j2objc.translate.DestructorGenerator;
import com.google.devtools.j2objc.translate.GwtConverter;
import com.google.devtools.j2objc.translate.InitializationNormalizer;
import com.google.devtools.j2objc.translate.InnerClassExtractor;
import com.google.devtools.j2objc.translate.JavaToIOSMethodTranslator;
import com.google.devtools.j2objc.translate.JavaToIOSTypeConverter;
import com.google.devtools.j2objc.translate.Rewriter;
import com.google.devtools.j2objc.types.Types;
import com.google.devtools.j2objc.util.ASTNodeException;
import com.google.devtools.j2objc.util.DeadCodeMap;
import com.google.devtools.j2objc.util.NameTable;
import com.google.devtools.j2objc.util.ProGuardUsageParser;
/**
* Translation tool for generating cpp source files from Java sources.
*/
public class J2ObjC {
private static String currentFileName;
private static CompilationUnit currentUnit;
private static int nFiles = 0;
private static int nErrors = 0;
private static int nWarnings = 0;
public enum Language {
OBJECTIVE_C(".h"), OBJECTIVE_CPP(".cpp");
private final String suffix;
private Language(String suffix) {
this.suffix = suffix;
}
public String getSuffix() {
return suffix;
}
}
static {
// Always enable assertions in translator.
ClassLoader loader = J2ObjC.class.getClassLoader();
if (loader != null) {
loader.setPackageAssertionStatus(J2ObjC.class.getPackage().getName(), true);
}
}
private static final Logger logger = Logger.getLogger(J2ObjC.class.getName());
/**
* Parse a specified Java source file and generate Objective C header(s)
* and implementation file(s) from it.
*
* @param filename the source file to translate
*/
void translate(String filename) throws IOException {
long startTime = System.currentTimeMillis();
int beginningErrorLevel = getCurrentErrorLevel();
logger.finest("reading " + filename);
// Read file
currentFileName = filename;
String source = getSource(filename);
if (source == null) {
error("no such file: " + filename);
return;
}
long readTime = System.currentTimeMillis();
// Parse and resolve source
currentUnit = parse(filename, source);
long compileTime = System.currentTimeMillis();
if (getCurrentErrorLevel() > beginningErrorLevel) {
return; // Continue to next file.
}
logger.finest("translating " + filename);
long translateTime = 0L;
initializeTranslation(currentUnit);
try {
String newSource = translate(currentUnit, source);
translateTime = System.currentTimeMillis();
if (currentUnit.types().isEmpty()) {
logger.finest("skipping dead file " + filename);
} else {
if (Options.printConvertedSources()) {
saveConvertedSource(filename, newSource);
}
logger.finest(
"writing output file(s) to " + Options.getOutputDirectory().getAbsolutePath());
// write header
ObjectiveCHeaderGenerator.generate(filename, source, currentUnit);
// write implementation file
ObjectiveCImplementationGenerator.generate(
filename, Options.getLanguage(), currentUnit, source);
}
} catch (ASTNodeException e) {
error(e);
} finally {
cleanup();
}
long endTime = System.currentTimeMillis();
printTimingInfo(readTime - startTime, compileTime - readTime, translateTime - compileTime,
endTime - translateTime, endTime - startTime);
}
private static CompilationUnit parse(String filename, String source) {
logger.finest("parsing " + filename);
ASTParser parser = ASTParser.newParser(AST.JLS3);
Map<String, String> compilerOptions = Options.getCompilerOptions();
parser.setCompilerOptions(compilerOptions);
parser.setSource(source.toCharArray());
parser.setResolveBindings(true);
setPaths(parser);
parser.setUnitName(filename);
CompilationUnit unit = (CompilationUnit) parser.createAST(null);
for (IProblem problem : getCompilationErrors(unit)) {
if (problem.isError()) {
error(String.format("%s:%s: %s",
filename, problem.getSourceLineNumber(), problem.getMessage()));
}
}
return unit;
}
private static List<IProblem> getCompilationErrors(CompilationUnit unit) {
List<IProblem> errors = Lists.newArrayList();
for (IProblem problem : unit.getProblems()) {
if (problem.isError()) {
if (((problem.getID() & IProblem.ImportRelated) > 0) && Options.ignoreMissingImports()) {
continue;
} else {
errors.add(problem);
}
}
}
return errors;
}
private void cleanup() {
NameTable.cleanup();
Symbols.cleanup();
Types.cleanup();
}
/**
* Removes dead types and methods, declared in a dead code map.
*
* @param unit the compilation unit created by ASTParser
* @param source the Java source used by ASTParser
* @return the rewritten source
* @throws AssertionError if the dead code eliminator makes invalid edits
*/
public static String removeDeadCode(CompilationUnit unit, String source) {
if (Options.getDeadCodeMap() == null) {
return source;
}
logger.finest("removing dead code");
new DeadCodeEliminator(Options.getDeadCodeMap()).run(unit);
Document doc = new Document(source);
TextEdit edit = unit.rewrite(doc, Options.getCompilerOptions());
try {
edit.apply(doc);
} catch (MalformedTreeException e) {
throw new AssertionError(e);
} catch (BadLocationException e) {
throw new AssertionError(e);
}
return doc.get();
}
private String[] removeDeadCode(String[] files) throws IOException {
loadDeadCodeMap();
if (Options.getDeadCodeMap() != null) {
for (int i = 0; i < files.length; i++) {
String filename = files[i];
logger.finest("reading " + filename);
if (filename.endsWith(".java")) {
// Read file
String source = getSource(filename);
if (source == null) {
error("no such file: " + filename);
return files;
}
String newPath = removeDeadCode(filename, source);
if (!filename.equals(newPath)) {
files[i] = newPath;
}
} else if (filename.endsWith(".jar")) {
File f = new File(filename);
if (f.exists() && f.isFile()) {
ZipFile zfile = new ZipFile(f);
try {
Enumeration<? extends ZipEntry> enumerator = zfile.entries();
while (enumerator.hasMoreElements()) {
ZipEntry entry = enumerator.nextElement();
String path = entry.getName();
if (path.endsWith(".java")) {
removeDeadCode(path, getSource(path));
}
}
} finally {
zfile.close(); // Also closes input stream.
}
}
}
}
}
Options.insertSourcePath(0, Options.getTemporaryDirectory());
return files;
}
private String removeDeadCode(String path, String source) throws IOException {
long startTime = System.currentTimeMillis();
int beginningErrorLevel = getCurrentErrorLevel();
// Parse and resolve source
CompilationUnit unit = parse(path, source);
if (getCurrentErrorLevel() > beginningErrorLevel) {
return path;
}
initializeTranslation(unit);
String newSource = removeDeadCode(unit, source);
if (!newSource.equals(source)) {
// Save the new source to the tmpdir and update the files list.
String pkg = unit.getPackage().getName().getFullyQualifiedName();
File packageDir = new File(Options.getTemporaryDirectory(),
pkg.replace('.', File.separatorChar));
packageDir.mkdirs();
int index = path.lastIndexOf(File.separatorChar);
String outputName = index >= 0 ? path.substring(index + 1) : path;
File outFile = new File(packageDir, outputName);
Files.write(newSource, outFile, Charsets.UTF_8);
path = outFile.getAbsolutePath();
}
long elapsedTime = System.currentTimeMillis() - startTime;
if (logger.getLevel().intValue() <= Level.FINE.intValue()) {
System.out.println(
String.format("dead-code elimination time: %.3f", inSeconds(elapsedTime)));
}
return path;
}
/**
* Translates a parsed source file, modifying the compilation unit by
* substituting core Java type and method references with iOS equivalents.
* For example, <code>java.lang.Object</code> maps to <code>NSObject</code>,
* and <code>java.lang.String</code> to <code>NSString</code>. The source is
* also modified to add support for iOS memory management, extract inner
* classes, etc.
* <p>
* Note: the returned source file doesn't need to be re-parsed, since the
* compilation unit already reflects the changes (it's useful, though,
* for dumping intermediate stages).
* </p>
*
* @param unit the compilation unit created by ASTParser
* @param source the Java source used by ASTParser
* @return the rewritten source
* @throws AssertionError if the translator makes invalid edits
*/
public static String translate(CompilationUnit unit, String source) {
// Update code that has GWT references.
new GwtConverter().run(unit);
// Modify AST to be more compatible with Objective C
new Rewriter().run(unit);
// Add auto-boxing conversions.
new Autoboxer(unit.getAST()).run(unit);
// Normalize init statements
new InitializationNormalizer().run(unit);
// Extract inner and anonymous classes
new AnonymousClassConverter(unit).run(unit);
new InnerClassExtractor(unit).run(unit);
// Translate core Java type use to similar iOS types
new JavaToIOSTypeConverter().run(unit);
Map<String, String> methodMappings = Options.getMethodMappings();
if (methodMappings.isEmpty()) {
// Method maps are loaded here so tests can call translate() directly.
loadMappingFiles();
}
new JavaToIOSMethodTranslator(unit.getAST(), methodMappings).run(unit);
// Add dealloc/finalize method(s), if necessary. This is done
// after inner class extraction, so that each class releases
// only its own instance variables.
new DestructorGenerator().run(unit);
for (Plugin plugin : Options.getPlugins()) {
plugin.processUnit(unit);
}
// Verify all modified nodes have type bindings
Types.verifyNode(unit);
Document doc = new Document(source);
TextEdit edit = unit.rewrite(doc, Options.getCompilerOptions());
try {
edit.apply(doc);
} catch (MalformedTreeException e) {
throw new AssertionError(e);
} catch (BadLocationException e) {
throw new AssertionError(e);
}
return doc.get();
}
public static void initializeTranslation(CompilationUnit unit) {
unit.recordModifications();
NameTable.initialize(unit);
Types.initialize(unit);
Symbols.initialize(unit);
}
private void saveConvertedSource(String filename, String content) {
try {
File outputFile = new File(Options.getOutputDirectory(), filename);
outputFile.getParentFile().mkdirs();
Files.write(content, outputFile, Charset.defaultCharset());
} catch (IOException e) {
error(e.getMessage());
}
}
private static void setPaths(ASTParser parser) {
// Add existing boot classpath after declared path, so that core files
// referenced, but not being translated, are included. This only matters
// when compiling the JRE emulation library sources.
List<String> fullClasspath = Lists.newArrayList();
String[] classpathEntries = Options.getClassPathEntries();
for (int i = 0; i < classpathEntries.length; i++) {
fullClasspath.add(classpathEntries[i]);
}
String bootclasspath = Options.getBootClasspath();
for (String path : bootclasspath.split(":")) {
// JDT requires that all path elements exist and can hold class files.
File f = new File(path);
if (f.exists() && (f.isDirectory() || path.endsWith(".jar"))) {
fullClasspath.add(path);
}
}
parser.setEnvironment(fullClasspath.toArray(new String[0]), Options.getSourcePathEntries(),
null, true);
// Workaround for ASTParser.setEnvironment() bug, which ignores its
// last parameter. This has been fixed in the Eclipse post-3.7 Java7
// branch.
try {
Field field = parser.getClass().getDeclaredField("bits");
field.setAccessible(true);
int bits = field.getInt(parser);
// Turn off CompilationUnitResolver.INCLUDE_RUNNING_VM_BOOTCLASSPATH
bits &= ~0x20;
field.setInt(parser, bits);
} catch (Exception e) {
// should never happen, since only the one known class is manipulated
e.printStackTrace();
System.exit(1);
}
}
private String getSource(String path) throws IOException {
File file = findSourceFile(path);
if (file == null) {
return findArchivedSource(path);
} else {
return Files.toString(file, Charset.defaultCharset());
}
}
private File findSourceFile(String filename) {
File f = getFileOrNull(filename);
if (f != null) {
return f;
}
for (String pathEntry : Options.getSourcePathEntries()) {
f = getFileOrNull(pathEntry + File.separatorChar + filename);
if (f != null) {
return f;
}
}
return null;
}
private String findArchivedSource(String path) throws IOException {
for (String pathEntry : Options.getSourcePathEntries()) {
File f = new File(pathEntry);
if (f.exists() && f.isFile()) {
ZipFile zfile;
try {
zfile = new ZipFile(f);
} catch (ZipException e) {
// Not a zip or jar file, so skip it.
continue;
}
ZipEntry entry = zfile.getEntry(path);
if (entry == null) {
continue;
}
try {
Reader in = new InputStreamReader(zfile.getInputStream(entry));
return CharStreams.toString(in);
} finally {
zfile.close(); // Also closes input stream.
}
}
}
return null;
}
private File getFileOrNull(String fileName) {
File f = new File(fileName);
return f.exists() ? f : null;
}
private static void translateSourceJar(J2ObjC compiler, String jarPath) throws IOException {
File f = new File(jarPath);
if (f.exists() && f.isFile()) {
ZipFile zfile = new ZipFile(f);
try {
Enumeration<? extends ZipEntry> enumerator = zfile.entries();
while (enumerator.hasMoreElements()) {
ZipEntry entry = enumerator.nextElement();
String path = entry.getName();
if (path.endsWith(".java")) {
printInfo("translating " + path);
compiler.translate(path);
nFiles++;
}
}
} catch (ZipException e) {
// Not a zip or jar file, so skip it.
return;
} finally {
zfile.close(); // Also closes input stream.
}
}
}
/**
* Report an error during translation.
*/
public static void error(String message) {
System.err.println("error: " + message);
error();
}
/**
* Increment the error counter, but don't display an error diagnostic.
* This should only be directly called via tests that are testing
* error conditions.
*/
public static void error() {
nErrors++;
}
/**
* Report an ASTVisitor error.
*/
public static void error(ASTNodeException e) {
System.err.println(String.format("Internal error, translating %s, line %d\nStack trace:",
currentFileName, currentUnit.getLineNumber(e.getSourcePosition())));
nErrors++;
e.getCause().printStackTrace(System.err);
}
/**
* Report a warning during translation.
*/
public static void warning(String message) {
System.err.println("warning: " + message);
if (Options.treatWarningsAsErrors()) {
nErrors++;
} else {
nWarnings++;
}
}
/**
* Report an error with a specific AST node.
*/
public static void error(ASTNode node, String message) {
int line = getNodeLine(node);
error(String.format("%s:%s: %s", currentFileName, line, message));
}
/**
* Report a warning with a specific AST node.
*/
public static void warning(ASTNode node, String message) {
int line = getNodeLine(node);
warning(String.format("%s:%s: %s", currentFileName, line, message));
}
private int getCurrentErrorLevel() {
return Options.treatWarningsAsErrors() ? nErrors + nWarnings : nErrors;
}
private static int getNodeLine(ASTNode node) {
CompilationUnit unit = (CompilationUnit) node.getRoot();
return unit.getLineNumber(node.getStartPosition());
}
private static void loadDeadCodeMap() {
DeadCodeMap map = null;
File file = Options.getProGuardUsageFile();
if (file != null) {
try {
map = ProGuardUsageParser.parse(Files.newReaderSupplier(file, Charset.defaultCharset()));
} catch (IOException e) {
throw new AssertionError(e);
}
}
Options.setDeadCodeMap(map);
}
private static void loadMappingFiles() {
for (String resourceName : Options.getMappingFiles()) {
Properties mappings = new Properties();
try {
mappings.load(J2ObjC.class.getResourceAsStream(resourceName));
} catch (IOException e) {
throw new AssertionError(e);
}
Enumeration<?> keyIterator = mappings.propertyNames();
while (keyIterator.hasMoreElements()) {
String javaMethod = (String) keyIterator.nextElement();
String iosMethod = mappings.getProperty(javaMethod);
Options.getMethodMappings().put(javaMethod, iosMethod);
}
}
}
@VisibleForTesting
static void reset() {
nErrors = 0;
nWarnings = 0;
nFiles = 0;
currentFileName = null;
currentUnit = null;
}
public static int getErrorCount() {
return nErrors;
}
public static int getWarningCount() {
return nWarnings;
}
private static void exit() {
printInfo(String.format("Translated %d %s: %d errors, %d warnings",
nFiles, nFiles == 1 ? "file" : "files", nErrors, nWarnings));
Options.deleteTemporaryDirectory();
System.exit(nErrors);
}
private static void printInfo(String msg) {
if (logger.getLevel().intValue() <= Level.INFO.intValue()) {
System.out.println(msg);
}
}
/**
* Prints time spent in each translation step. Values are in milliseconds, but displayed
* as fractional seconds.
*/
private static void printTimingInfo(long read, long compile, long translate,
long write, long total) {
if (logger.getLevel().intValue() <= Level.FINE.intValue()) {
System.out.println(
String.format("time: read=%.3f compile=%.3f translate=%.3f write=%.3f total=%.3f",
inSeconds(read), inSeconds(compile), inSeconds(translate),
inSeconds(write), inSeconds(total)));
}
}
private static float inSeconds(long milliseconds) {
return (float) milliseconds / 1000;
}
public static String getFileHeader(String sourceFileName) {
// Template parameters are: source file, user name, date.
String username = System.getProperty("user.name");
Date now = new Date();
String generationDate = DateFormat.getDateInstance(DateFormat.SHORT).format(now);
return String.format(Options.getFileHeader(), sourceFileName, username, generationDate);
}
private static class JarFileLoader extends URLClassLoader {
public JarFileLoader() {
super(new URL[]{});
}
public void addJarFile(String path) throws MalformedURLException {
String urlPath = "jar:file://" + path + "!/";
addURL(new URL(urlPath));
}
}
private static void initPlugins(String[] pluginPaths, String pluginOptionString)
throws IOException {
JarFileLoader classLoader = new JarFileLoader();
for (String path : pluginPaths) {
if (path.endsWith(".jar")) {
JarInputStream jarStream = new JarInputStream(new FileInputStream(path));
classLoader.addJarFile(new File(path).getAbsolutePath());
JarEntry entry;
while ((entry = jarStream.getNextJarEntry()) != null) {
String entryName = entry.getName();
if (!entryName.endsWith(".class")) {
continue;
}
String className =
entryName.replaceAll("/", "\\.").substring(0, entryName.length() - ".class".length());
try {
Class<?> clazz = classLoader.loadClass(className);
if (Plugin.class.isAssignableFrom(clazz)) {
Constructor<?> cons = clazz.getDeclaredConstructor();
Plugin plugin = (Plugin) cons.newInstance();
plugin.initPlugin(pluginOptionString);
Options.getPlugins().add(plugin);
}
} catch (Exception e) {
throw new IOException("plugin exception: ", e);
}
}
} else {
logger.warning("Don't understand plugin path entry: " + path);
}
}
}
public static void error(Exception e) {
logger.log(Level.SEVERE, "Exiting due to exception", e);
System.exit(1);
}
/**
* Entry point for tool.
*
* @param args command-line arguments: flags and source file names
* @throws IOException
*/
public static void main(String[] args) {
String[] files = null;
try {
files = Options.load(args);
} catch (IOException e) {
error(e.getMessage());
System.exit(1);
}
J2ObjC compiler = new J2ObjC();
try {
initPlugins(Options.getPluginPathEntries(), Options.getPluginOptionString());
} catch (IOException e) {
error(e);
}
// Remove dead-code first, so modified file paths are replaced in the
// translation list.
int beginningErrorLevel = compiler.getCurrentErrorLevel();
try {
files = compiler.removeDeadCode(files);
} catch (IOException e) {
error(e.getMessage());
}
if (compiler.getCurrentErrorLevel() > beginningErrorLevel) {
return;
}
nFiles = 0;
for (int i = 0; i < files.length; i++) {
String file = files[i];
try {
if (file.endsWith(".java")) { // Eclipse may send all project entities.
printInfo("translating " + file);
compiler.translate(file);
nFiles++;
} else if (file.endsWith(".jar")) {
translateSourceJar(compiler, file);
}
} catch (IOException e) {
error(e.getMessage());
}
}
for (Plugin plugin : Options.getPlugins()) {
plugin.endProcessing(Options.getOutputDirectory());
}
exit();
}
}