Example usage for org.objectweb.asm.commons Method getName

List of usage examples for org.objectweb.asm.commons Method getName

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Introduction

In this page you can find the example usage for org.objectweb.asm.commons Method getName.

Prototype

public String getName()

Source Link

Document

Returns the name of the method described by this object.

Usage

From source file:erjang.beam.BuiltInFunction.java

License:Apache License

/**
 * @param m//from w  w w . j a  va2  s .  co  m
 */
public BuiltInFunction(java.lang.reflect.Method m) {
    this.javaMethod = m;
    this.owner = Type.getType(m.getDeclaringClass());
    this.method = new Method(m.getName(), Type.getType(m.getReturnType()), Type.getArgumentTypes(m));
    isVirtual = !Modifier.isStatic(m.getModifiers());
    boolean p = false;
    for (Class c : m.getExceptionTypes()) {
        if (Pausable.class.equals(c)) {
            p = true;
            break;
        }
    }
    isPausable = p;
}

From source file:io.datakernel.codegen.AsmBuilder.java

License:Apache License

/**
 * Creates a new method for a dynamic class. The method must be part of the provided interfaces or abstract class.
 *
 * @param methodName name of method/*from  w  w w.j av a  2s  .c o m*/
 * @param expression function which will be processed
 * @return changed AsmFunctionFactory
 */
public AsmBuilder<T> method(String methodName, Expression expression) {
    if (methodName.contains("(")) {
        Method method = Method.getMethod(methodName);
        return method(method, expression);
    }

    Method foundMethod = null;
    List<List<java.lang.reflect.Method>> listOfMethods = new ArrayList<>();
    listOfMethods.add(asList(Object.class.getMethods()));
    for (Class<?> type : scope.getParentClasses()) {
        listOfMethods.add(asList(type.getMethods()));
        listOfMethods.add(asList(type.getDeclaredMethods()));
    }
    for (List<java.lang.reflect.Method> list : listOfMethods) {
        for (java.lang.reflect.Method m : list) {
            if (m.getName().equals(methodName)) {
                Method method = getMethod(m);
                if (foundMethod != null && !method.equals(foundMethod))
                    throw new IllegalArgumentException("Method " + method + " collides with " + foundMethod);
                foundMethod = method;
            }
        }
    }
    Preconditions.check(foundMethod != null, "Could not find method '" + methodName + "'");
    return method(foundMethod, expression);
}

From source file:io.datakernel.codegen.AsmBuilder.java

License:Apache License

/**
 * Returns a new class which is created in a dynamic way
 *
 * @param key key/*from  ww  w . j a v  a  2  s.  c o m*/
 * @return completed class
 */
private Class<T> defineNewClass(AsmClassKey<T> key, String newClassName) {
    DefiningClassWriter cw = new DefiningClassWriter(classLoader);

    String className;
    if (newClassName == null) {
        className = DEFAULT_CLASS_NAME + COUNTER.incrementAndGet();
    } else {
        className = newClassName;
    }

    Type classType = getType('L' + className.replace('.', '/') + ';');

    // contains all classes (abstract and interfaces)
    final Set<Class<?>> parentClasses = scope.getParentClasses();
    final String[] internalNames = new String[parentClasses.size()];
    int pos = 0;
    for (Class<?> clazz : parentClasses)
        internalNames[pos++] = getInternalName(clazz);

    if (scope.getMainType().isInterface()) {
        cw.visit(V1_6, ACC_PUBLIC + ACC_FINAL + ACC_SUPER, classType.getInternalName(), null,
                "java/lang/Object", internalNames);
    } else {
        cw.visit(V1_6, ACC_PUBLIC + ACC_FINAL + ACC_SUPER, classType.getInternalName(), null, internalNames[0],
                Arrays.copyOfRange(internalNames, 1, internalNames.length));
    }

    {
        Method m = getMethod("void <init> ()");
        GeneratorAdapter g = new GeneratorAdapter(ACC_PUBLIC, m, null, null, cw);
        g.loadThis();

        if (scope.getMainType().isInterface()) {
            g.invokeConstructor(getType(Object.class), m);
        } else {
            g.invokeConstructor(getType(scope.getMainType()), m);
        }

        g.returnValue();
        g.endMethod();
    }

    for (String field : fields.keySet()) {
        Class<?> fieldClass = fields.get(field);
        cw.visitField(ACC_PUBLIC, field, getType(fieldClass).getDescriptor(), null, null);
    }

    for (String field : staticFields.keySet()) {
        Class<?> fieldClass = staticFields.get(field);
        cw.visitField(ACC_PUBLIC + ACC_STATIC, field, getType(fieldClass).getDescriptor(), null, null);
    }

    for (Method m : expressionStaticMap.keySet()) {
        try {
            GeneratorAdapter g = new GeneratorAdapter(ACC_PUBLIC + ACC_STATIC + ACC_FINAL, m, null, null, cw);

            Context ctx = new Context(classLoader, g, classType, scope.getParentClasses(),
                    Collections.EMPTY_MAP, scope.getStaticFields(), m.getArgumentTypes(), m, scope.getMethods(),
                    scope.getStaticMethods());

            Expression expression = expressionStaticMap.get(m);
            loadAndCast(ctx, expression, m.getReturnType());
            g.returnValue();

            g.endMethod();
        } catch (Exception e) {
            throw new RuntimeException("Unable to implement " + m.getName() + m.getDescriptor(), e);
        }
    }

    for (Method m : expressionMap.keySet()) {
        try {
            GeneratorAdapter g = new GeneratorAdapter(ACC_PUBLIC + ACC_FINAL, m, null, null, cw);
            Context ctx = new Context(classLoader, g, classType, scope.getParentClasses(), scope.getFields(),
                    scope.getStaticFields(), m.getArgumentTypes(), m, scope.getMethods(),
                    scope.getStaticMethods());

            Expression expression = expressionMap.get(m);
            loadAndCast(ctx, expression, m.getReturnType());
            g.returnValue();

            g.endMethod();
        } catch (Exception e) {
            throw new RuntimeException("Unable to implement " + m.getName() + m.getDescriptor(), e);
        }
    }
    if (bytecodeSaveDir != null) {
        try (FileOutputStream fos = new FileOutputStream(
                bytecodeSaveDir.resolve(className + ".class").toFile())) {
            fos.write(cw.toByteArray());
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    cw.visitEnd();

    Class<?> definedClass = classLoader.defineClass(className, key, cw.toByteArray());
    logger.trace("Defined new {} for key {}", definedClass, key);
    return (Class<T>) definedClass;
}

From source file:io.datakernel.codegen.ExpressionCallStaticSelf.java

License:Apache License

@Override
public Type type(Context ctx) {
    List<Type> argumentTypes = new ArrayList<>();
    for (Expression argument : arguments) {
        argumentTypes.add(argument.type(ctx));
    }/*from   w  w  w.ja v a2s .co  m*/

    Set<Method> methods = ctx.getStaticMethods();
    for (Method m : methods) {
        if (m.getName().equals(methodName)) {
            if (m.getArgumentTypes().length == argumentTypes.size()) {
                Type[] methodTypes = m.getArgumentTypes();
                boolean isSame = true;
                for (int i = 0; i < argumentTypes.size(); i++) {
                    if (!methodTypes[i].equals(argumentTypes.get(i))) {
                        isSame = false;
                        break;
                    }
                }
                if (isSame) {
                    return m.getReturnType();
                }
            }
        }
    }
    throw new RuntimeException(format("No method %s.%s(%s). %s", owner.type(ctx).getClassName(), methodName,
            (!argumentTypes.isEmpty() ? argsToString(argumentClasses(ctx, arguments)) : ""),
            exceptionInGeneratedClass(ctx)));
}

From source file:net.wpm.codegen.ClassBuilder.java

License:Apache License

/**
 * Creates a new method for a dynamic class. The method must be part of the provided interfaces or abstract class.
 *
 * @param methodName name of method//ww w  .j  a  v a  2 s  .c  om
 * @param expression function which will be processed
 * @return changed AsmFunctionFactory
 */
public ClassBuilder<T> method(String methodName, Expression expression) {
    if (methodName.contains("(")) {
        Method method = Method.getMethod(methodName);
        return method(method, expression);
    }

    Method foundMethod = null;
    List<List<java.lang.reflect.Method>> listOfMethods = new ArrayList<List<java.lang.reflect.Method>>();
    listOfMethods.add(asList(Object.class.getMethods()));
    for (Class<?> type : scope.getParentClasses()) {
        listOfMethods.add(asList(type.getMethods()));
        listOfMethods.add(asList(type.getDeclaredMethods()));
    }
    for (List<java.lang.reflect.Method> list : listOfMethods) {
        for (java.lang.reflect.Method m : list) {
            if (m.getName().equals(methodName)) {
                Method method = getMethod(m);
                if (foundMethod != null && !method.equals(foundMethod))
                    throw new IllegalArgumentException("Method " + method + " collides with " + foundMethod);
                foundMethod = method;
            }
        }
    }
    Preconditions.check(foundMethod != null, "Could not find method '" + methodName + "'");
    return method(foundMethod, expression);
}

From source file:net.wpm.codegen.ClassBuilder.java

License:Apache License

/**
 * Returns a new class which is created in a dynamic way
 *
 * @param key key/* www .  j a  va  2 s.c  om*/
 * @return completed class
 */
private Class<T> defineNewClass(AsmClassKey<T> key, String newClassName) {
    DefiningClassWriter cw = new DefiningClassWriter(classLoader);

    String className;
    if (newClassName == null) {
        className = DEFAULT_CLASS_NAME + COUNTER.incrementAndGet();
    } else {
        className = newClassName;
    }

    Type classType = getType('L' + className.replace('.', '/') + ';');

    // contains all classes (abstract and interfaces)
    final Set<Class<?>> parentClasses = scope.getParentClasses();
    final String[] internalNames = new String[parentClasses.size()];
    int pos = 0;
    for (Class<?> clazz : parentClasses)
        internalNames[pos++] = getInternalName(clazz);

    if (scope.getMainType().isInterface()) {
        cw.visit(V1_6, ACC_PUBLIC + ACC_FINAL + ACC_SUPER, classType.getInternalName(), null,
                "java/lang/Object", internalNames);
    } else {
        cw.visit(V1_6, ACC_PUBLIC + ACC_FINAL + ACC_SUPER, classType.getInternalName(), null, internalNames[0],
                Arrays.copyOfRange(internalNames, 1, internalNames.length));
    }

    {
        Method m = getMethod("void <init> ()");
        GeneratorAdapter g = new GeneratorAdapter(ACC_PUBLIC, m, null, null, cw);

        if (constructor != null) {
            Context ctx = new Context(classLoader, g, classType, scope.getParentClasses(), scope.getFields(),
                    scope.getStaticFields(), m.getArgumentTypes(), m, scope.getMethods(),
                    scope.getStaticMethods());
            loadAndCast(ctx, constructor, m.getReturnType());
        }
        g.loadThis();

        if (scope.getMainType().isInterface()) {
            g.invokeConstructor(getType(Object.class), m);
        } else {
            g.invokeConstructor(getType(scope.getMainType()), m);
        }

        g.returnValue();
        g.endMethod();
    }

    for (String field : fields.keySet()) {
        Class<?> fieldClass = fields.get(field);
        cw.visitField(ACC_PUBLIC, field, getType(fieldClass).getDescriptor(), null, null);
    }

    for (String field : staticFields.keySet()) {
        Class<?> fieldClass = staticFields.get(field);
        cw.visitField(ACC_PUBLIC + ACC_STATIC, field, getType(fieldClass).getDescriptor(), null, null);
    }

    for (String field : staticConstants.keySet()) {
        Class<?> fieldClass = staticConstants.get(field);
        cw.visitField(ACC_PUBLIC + ACC_STATIC + ACC_FINAL, field, getType(fieldClass).getDescriptor(), null,
                null);
    }

    for (Method m : staticMethods.keySet()) {
        try {
            GeneratorAdapter g = new GeneratorAdapter(ACC_PUBLIC + ACC_STATIC + ACC_FINAL, m, null, null, cw);

            Context ctx = new Context(classLoader, g, classType, scope.getParentClasses(),
                    Collections.EMPTY_MAP, scope.getStaticFields(), m.getArgumentTypes(), m, scope.getMethods(),
                    scope.getStaticMethods());

            Expression expression = staticMethods.get(m);
            loadAndCast(ctx, expression, m.getReturnType());
            g.returnValue();

            g.endMethod();
        } catch (Exception e) {
            throw new RuntimeException("Unable to implement " + m.getName() + m.getDescriptor(), e);
        }
    }

    for (Method m : methods.keySet()) {
        try {
            GeneratorAdapter g = new GeneratorAdapter(ACC_PUBLIC + ACC_FINAL, m, null, null, cw);
            Context ctx = new Context(classLoader, g, classType, scope.getParentClasses(), scope.getFields(),
                    scope.getStaticFields(), m.getArgumentTypes(), m, scope.getMethods(),
                    scope.getStaticMethods());

            Expression expression = methods.get(m);
            loadAndCast(ctx, expression, m.getReturnType());
            g.returnValue();

            g.endMethod();
        } catch (Exception e) {
            throw new RuntimeException("Unable to implement " + m.getName() + m.getDescriptor(), e);
        }
    }
    if (bytecodeSaveDir != null) {
        FileOutputStream fos = null;
        try {
            fos = new FileOutputStream(bytecodeSaveDir.resolve(className + ".class").toFile());
            fos.write(cw.toByteArray());
            fos.close();
        } catch (IOException e) {
            try {
                if (fos != null)
                    fos.close();
            } catch (IOException ioe) {
                throw new RuntimeException(ioe);
            }
            throw new RuntimeException(e);
        }
    }

    cw.visitEnd();

    Class<?> definedClass = classLoader.defineClass(className, key, cw.toByteArray());
    logger.trace("Defined new {} for key {}", definedClass, key);
    return (Class<T>) definedClass;
}

From source file:net.wpm.codegen.ExpressionCallStaticSelf.java

License:Apache License

@Override
public Type type(Context ctx) {
    List<Type> argumentTypes = new ArrayList<Type>();
    for (Expression argument : arguments) {
        argumentTypes.add(argument.type(ctx));
    }/*  w  w w .  j  av  a  2s  .c o  m*/

    Set<Method> methods = ctx.getStaticMethods();
    for (Method m : methods) {
        if (m.getName().equals(methodName)) {
            if (m.getArgumentTypes().length == argumentTypes.size()) {
                Type[] methodTypes = m.getArgumentTypes();
                boolean isSame = true;
                for (int i = 0; i < argumentTypes.size(); i++) {
                    if (!methodTypes[i].equals(argumentTypes.get(i))) {
                        isSame = false;
                        break;
                    }
                }
                if (isSame) {
                    return m.getReturnType();
                }
            }
        }
    }
    throw new RuntimeException(format("No method %s.%s(%s). %s", owner.type(ctx).getClassName(), methodName,
            (!argumentTypes.isEmpty() ? argsToString(argumentClasses(ctx, arguments)) : ""),
            exceptionInGeneratedClass(ctx)));
}

From source file:nl.hardijzer.fw.checkabstract.ClassInfo.java

License:Open Source License

private static String methodToString(Method m) {
    StringBuilder sb = new StringBuilder();
    sb.append(typeToString(m.getReturnType()));
    sb.append(" ");
    sb.append(m.getName());
    sb.append("(");
    boolean bFirst = true;
    for (Type t : m.getArgumentTypes()) {
        if (!bFirst)
            sb.append(", ");
        bFirst = false;// w  w  w. j a  v  a2  s.  c  o  m
        sb.append(typeToString(t));
    }
    sb.append(")");
    return sb.toString();
}

From source file:org.apache.aries.proxy.impl.interfaces.InterfaceCombiningClassAdapter.java

License:Apache License

private void visitAbstractMethods(Class<?> clazz) {
    for (java.lang.reflect.Method m : clazz.getDeclaredMethods()) {
        int modifiers = m.getModifiers();
        if ((modifiers & Modifier.ABSTRACT) != 0) {
            List<String> exceptions = new ArrayList<String>();
            for (Class<?> c : m.getExceptionTypes()) {
                exceptions.add(Type.getInternalName(c));
            }/*w  ww .j  a  v  a 2s.c o m*/
            MethodVisitor visitor = visitMethod(modifiers, m.getName(), Method.getMethod(m).getDescriptor(),
                    null, exceptions.toArray(new String[exceptions.size()]));
            if (visitor != null)
                visitor.visitEnd();
        }
    }
}

From source file:org.apache.commons.weaver.privilizer.ActionGenerator.java

License:Apache License

private static String generateName(final Method methd) {
    final StringBuilder buf = new StringBuilder(methd.getName());
    if (methd.getArgumentTypes().length > 0) {
        buf.append("$$");
        for (final Type arg : methd.getArgumentTypes()) {
            buf.append(arg.getDescriptor().replace("[", "arrayOf").replace('/', '_').replace(';', '$'));
        }//from ww w  .  ja  va2s . c om
    }
    return buf.append("_ACTION").toString();
}