Examples with ClassNode org.objectweb.asm.tree.ClassNode used on opensource projects

Example 91 with ClassNode

use of org.objectweb.asm.tree.ClassNode in project presto by prestodb.

the class ClassInfoLoader method readClassInfoQuick.

private ClassInfo readClassInfoQuick(ParameterizedType type) {
    // check for user supplied class node
    ClassNode classNode = classNodes.get(type);
    if (classNode != null) {
        return new ClassInfo(this, classNode);
    }
    // check for user supplied byte code
    ClassReader classReader;
    byte[] bytecode = bytecodes.get(type);
    if (bytecode != null) {
        classReader = new ClassReader(bytecode);
    } else {
        // load class file from class loader
        String classFileName = type.getClassName() + ".class";
        try (InputStream is = classLoader.getResourceAsStream(classFileName)) {
            classReader = new ClassReader(is);
        } catch (IOException e) {
            // check if class is already loaded
            try {
                Class<?> aClass = classLoader.loadClass(type.getJavaClassName());
                return new ClassInfo(this, aClass);
            } catch (ClassNotFoundException e1) {
                throw new RuntimeException("Class not found " + type, e);
            }
        }
    }
    if (loadMethodNodes) {
        // slower version that loads all operations
        classNode = new ClassNode();
        classReader.accept(new CheckClassAdapter(classNode, false), ClassReader.SKIP_DEBUG);
        return new ClassInfo(this, classNode);
    } else {
        // optimized version
        int header = classReader.header;
        int access = classReader.readUnsignedShort(header);
        char[] buf = new char[2048];
        // read super class name
        int superClassIndex = classReader.getItem(classReader.readUnsignedShort(header + 4));
        ParameterizedType superClass;
        if (superClassIndex == 0) {
            superClass = null;
        } else {
            superClass = typeFromPathName(classReader.readUTF8(superClassIndex, buf));
        }
        // read each interface name
        int interfaceCount = classReader.readUnsignedShort(header + 6);
        ImmutableList.Builder<ParameterizedType> interfaces = ImmutableList.builder();
        header += 8;
        for (int i = 0; i < interfaceCount; ++i) {
            interfaces.add(typeFromPathName(classReader.readClass(header, buf)));
            header += 2;
        }
        return new ClassInfo(this, type, access, superClass, interfaces.build(), null);
    }
}

Example 92 with ClassNode

use of org.objectweb.asm.tree.ClassNode in project presto by prestodb.

the class ClassInfoLoader method createClassInfoLoader.

public static ClassInfoLoader createClassInfoLoader(Iterable<ClassDefinition> classDefinitions, ClassLoader classLoader) {
    ImmutableMap.Builder<ParameterizedType, ClassNode> classNodes = ImmutableMap.builder();
    for (ClassDefinition classDefinition : classDefinitions) {
        ClassNode classNode = new ClassNode();
        classDefinition.visit(classNode);
        classNodes.put(classDefinition.getType(), classNode);
    }
    return new ClassInfoLoader(classNodes.build(), ImmutableMap.of(), classLoader, true);
}

Example 93 with ClassNode

use of org.objectweb.asm.tree.ClassNode in project CodeChickenLib by Chicken-Bones.

the class ClassHeirachyManager method declareASM.

private static SuperCache declareASM(byte[] bytes) {
    ClassNode node = ASMHelper.createClassNode(bytes);
    String name = toKey(node.name);
    SuperCache cache = getOrCreateCache(name);
    cache.superclass = toKey(node.superName.replace('/', '.'));
    cache.add(cache.superclass);
    for (String iclass : node.interfaces) cache.add(toKey(iclass.replace('/', '.')));
    return cache;
}

Example 94 with ClassNode

use of org.objectweb.asm.tree.ClassNode in project retrolambda by orfjackal.

the class LambdaClassesTest method readClass.

private static ClassNode readClass(String name) throws IOException {
    ClassReader cr = new ClassReader(name);
    ClassNode cls = new ClassNode();
    cr.accept(cls, ClassReader.SKIP_CODE);
    return cls;
}

Example 95 with ClassNode

use of org.objectweb.asm.tree.ClassNode in project neo4j by neo4j.

the class ByteCodeVerifier method classNode.

private static ClassNode classNode(ByteBuffer bytecode) {
    byte[] bytes;
    if (bytecode.hasArray()) {
        bytes = bytecode.array();
    } else {
        bytes = new byte[bytecode.limit()];
        bytecode.get(bytes);
    }
    ClassNode classNode = new ClassNode();
    new ClassReader(bytes).accept(new CheckClassAdapter(classNode, false), SKIP_DEBUG);
    return classNode;
}