Examples with ClassReader org.objectweb.asm.ClassReader used on opensource projects

Example 11 with ClassReader

use of org.objectweb.asm.ClassReader in project buck by facebook.

the class AbiClass method extract.

public static AbiClass extract(Path pathToJar, String className) throws IOException {
    try (ZipFile zip = new ZipFile(pathToJar.toString())) {
        ZipEntry entry = zip.getEntry(className);
        if (entry == null) {
            return null;
        }
        try (InputStream entryStream = zip.getInputStream(entry)) {
            ClassReader reader = new ClassReader(entryStream);
            ClassNode classNode = new ClassNode();
            reader.accept(classNode, 0);
            return new AbiClass(classNode);
        }
    }
}

Example 12 with ClassReader

use of org.objectweb.asm.ClassReader in project buck by facebook.

the class ClassesImpl method acceptClassVisitor.

@Override
public void acceptClassVisitor(String qualifiedName, int flags, ClassVisitor cv) throws IOException {
    Path classFilePath = resolveClassFilePath(qualifiedName);
    try (InputStream stream = Files.newInputStream(classFilePath)) {
        ClassReader reader = new ClassReader(stream);
        reader.accept(cv, flags);
    }
}

Example 13 with ClassReader

use of org.objectweb.asm.ClassReader in project android_frameworks_base by ParanoidAndroid.

the class AsmAnalyzer method parseZip.

/**
     * Parses a JAR file and returns a list of all classes founds using a map
     * class name => ASM ClassReader. Class names are in the form "android.view.View".
     */
Map<String, ClassReader> parseZip(List<String> jarPathList) throws IOException {
    TreeMap<String, ClassReader> classes = new TreeMap<String, ClassReader>();
    for (String jarPath : jarPathList) {
        ZipFile zip = new ZipFile(jarPath);
        Enumeration<? extends ZipEntry> entries = zip.entries();
        ZipEntry entry;
        while (entries.hasMoreElements()) {
            entry = entries.nextElement();
            if (entry.getName().endsWith(".class")) {
                ClassReader cr = new ClassReader(zip.getInputStream(entry));
                String className = classReaderToClassName(cr);
                classes.put(className, cr);
            }
        }
    }
    return classes;
}

Example 14 with ClassReader

use of org.objectweb.asm.ClassReader in project android_frameworks_base by ParanoidAndroid.

the class AsmGenerator method generate.

/** Generates the final JAR */
public void generate() throws FileNotFoundException, IOException {
    TreeMap<String, byte[]> all = new TreeMap<String, byte[]>();
    for (Class<?> clazz : mInjectClasses) {
        String name = classToEntryPath(clazz);
        InputStream is = ClassLoader.getSystemResourceAsStream(name);
        ClassReader cr = new ClassReader(is);
        byte[] b = transform(cr, true);
        name = classNameToEntryPath(transformName(cr.getClassName()));
        all.put(name, b);
    }
    for (Entry<String, ClassReader> entry : mDeps.entrySet()) {
        ClassReader cr = entry.getValue();
        byte[] b = transform(cr, true);
        String name = classNameToEntryPath(transformName(cr.getClassName()));
        all.put(name, b);
    }
    for (Entry<String, ClassReader> entry : mKeep.entrySet()) {
        ClassReader cr = entry.getValue();
        byte[] b = transform(cr, true);
        String name = classNameToEntryPath(transformName(cr.getClassName()));
        all.put(name, b);
    }
    mLog.info("# deps classes: %d", mDeps.size());
    mLog.info("# keep classes: %d", mKeep.size());
    mLog.info("# renamed     : %d", mRenameCount);
    createJar(new FileOutputStream(mOsDestJar), all);
    mLog.info("Created JAR file %s", mOsDestJar);
}

Example 15 with ClassReader

use of org.objectweb.asm.ClassReader in project android_frameworks_base by ParanoidAndroid.

the class DependencyFinder method findClassesDeps.

/**
     * Finds all dependencies for all classes in keepClasses which are also
     * listed in zipClasses. Returns a map of all the dependencies found.
     */
Map<String, Set<String>> findClassesDeps(Map<String, ClassReader> zipClasses) {
    // The dependencies that we'll collect.
    // It's a map Class name => uses class names.
    Map<String, Set<String>> dependencyMap = new TreeMap<String, Set<String>>();
    DependencyVisitor visitor = getVisitor();
    int count = 0;
    try {
        for (Entry<String, ClassReader> entry : zipClasses.entrySet()) {
            String name = entry.getKey();
            TreeSet<String> set = new TreeSet<String>();
            dependencyMap.put(name, set);
            visitor.setDependencySet(set);
            ClassReader cr = entry.getValue();
            cr.accept(visitor, 0);
            visitor.setDependencySet(null);
            mLog.debugNoln("Visited %d classes\r", ++count);
        }
    } finally {
        mLog.debugNoln("\n");
    }
    return dependencyMap;
}