Examples with MethodVisitor org.simpleflatmapper.ow2asm.MethodVisitor used on opensource projects

Example 31 with MethodVisitor

use of org.simpleflatmapper.ow2asm.MethodVisitor in project SimpleFlatMapper by arnaudroger.

the class InstantiatorBuilder method appendInitBuilder.

private static <S> void appendInitBuilder(Map<Parameter, Getter<? super S, ?>> injections, ClassWriter cw, String sourceType, String classType, BuilderInstantiatorDefinition instantiatorDefinition) {
    MethodVisitor mv;
    mv = cw.visitMethod(ACC_PUBLIC, "<init>", "(Ljava/util/Map;L" + AsmUtils.toAsmType(Instantiator.class) + ";)V", "(Ljava/util/Map<Ljava.lang.String;L" + AsmUtils.toAsmType(Getter.class) + "<" + AsmUtils.toTargetTypeDeclaration(sourceType) + "*>;>;" + "L" + AsmUtils.toAsmType(Instantiator.class) + "<Ljava/lang/Void;L" + AsmUtils.toAsmType(BiInstantiatorBuilder.getTargetType(instantiatorDefinition.getBuilderInstantiator())) + ";>;)V", null);
    mv.visitCode();
    mv.visitVarInsn(ALOAD, 0);
    mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitVarInsn(ALOAD, 2);
    mv.visitFieldInsn(PUTFIELD, classType, "builderInstantiator", "L" + AsmUtils.toAsmType(Instantiator.class) + ";");
    appendInitGetters(injections, classType, mv);
    mv.visitInsn(RETURN);
    mv.visitMaxs(3, 2);
    mv.visitEnd();
}

Example 32 with MethodVisitor

use of org.simpleflatmapper.ow2asm.MethodVisitor in project SimpleFlatMapper by arnaudroger.

the class SetterBuilder method appendSet.

private static void appendSet(Method method, ClassWriter cw, Class<?> target, String targetType, String propertyType, String classType) {
    MethodVisitor mv;
    {
        mv = cw.visitMethod(ACC_PUBLIC, "set", "(" + AsmUtils.toTargetTypeDeclaration(targetType) + AsmUtils.toTargetTypeDeclaration(propertyType) + ")V", null, new String[] { "java/lang/Exception" });
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 1);
        mv.visitVarInsn(ALOAD, 2);
        AsmUtils.invoke(mv, target, method.getName(), "(" + AsmUtils.toTargetTypeDeclaration(propertyType) + ")" + AsmUtils.toTargetTypeDeclaration(method.getReturnType()));
        mv.visitInsn(RETURN);
        mv.visitMaxs(2, 3);
        mv.visitEnd();
    }
    appendSynthetic(cw, targetType, propertyType, classType);
}

Example 33 with MethodVisitor

use of org.simpleflatmapper.ow2asm.MethodVisitor in project SimpleFlatMapper by arnaudroger.

the class SetterBuilder method createObjectSetter.

public static byte[] createObjectSetter(final String className, final Method method) throws Exception {
    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    MethodVisitor mv;
    Class<?> target = method.getDeclaringClass();
    Class<?> property = method.getParameterTypes()[0];
    String targetType = toType(target);
    String propertyType = toType(property);
    String classType = toType(className);
    cw.visit(V1_6, ACC_PUBLIC + ACC_FINAL + ACC_SUPER, classType, "Ljava/lang/Object;L" + SETTER_TYPE + "<L" + targetType + ";" + AsmUtils.toTargetTypeDeclaration(propertyType) + ">;", "java/lang/Object", new String[] { SETTER_TYPE });
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
        mv.visitInsn(RETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    appendSet(method, cw, target, targetType, propertyType, classType);
    appendToString(cw);
    cw.visitEnd();
    return AsmUtils.writeClassToFile(className, cw.toByteArray());
}

Example 34 with MethodVisitor

use of org.simpleflatmapper.ow2asm.MethodVisitor in project SimpleFlatMapper by arnaudroger.

the class SetterBuilder method appendToString.

private static void appendToString(ClassWriter cw) {
    MethodVisitor mv;
    mv = cw.visitMethod(ACC_PUBLIC, "toString", "()Ljava/lang/String;", null, null);
    mv.visitCode();
    mv.visitTypeInsn(NEW, "java/lang/StringBuilder");
    mv.visitInsn(DUP);
    mv.visitMethodInsn(INVOKESPECIAL, "java/lang/StringBuilder", "<init>", "()V", false);
    mv.visitVarInsn(ASTORE, 1);
    mv.visitVarInsn(ALOAD, 1);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Object", "getClass", "()Ljava/lang/Class;", false);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getSimpleName", "()Ljava/lang/String;", false);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(Ljava/lang/String;)Ljava/lang/StringBuilder;", false);
    mv.visitLdcInsn("{");
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(Ljava/lang/String;)Ljava/lang/StringBuilder;", false);
    mv.visitLdcInsn("}");
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(Ljava/lang/String;)Ljava/lang/StringBuilder;", false);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "toString", "()Ljava/lang/String;", false);
    mv.visitInsn(ARETURN);
    mv.visitMaxs(2, 1);
    mv.visitEnd();
}

Example 35 with MethodVisitor

use of org.simpleflatmapper.ow2asm.MethodVisitor in project SimpleFlatMapper by arnaudroger.

the class SetterBuilder method createObjectSetter.

public static byte[] createObjectSetter(final String className, final Field field) throws Exception {
    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    MethodVisitor mv;
    Class<?> target = field.getDeclaringClass();
    Class<?> property = field.getType();
    String targetType = toType(target);
    String propertyType = toType(property);
    String classType = toType(className);
    cw.visit(V1_6, ACC_PUBLIC + ACC_FINAL + ACC_SUPER, classType, "Ljava/lang/Object;L" + SETTER_TYPE + "<L" + targetType + ";" + AsmUtils.toTargetTypeDeclaration(propertyType) + ">;", "java/lang/Object", new String[] { SETTER_TYPE });
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
        mv.visitInsn(RETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    appendSet(field, cw, target, targetType, propertyType, classType);
    appendToString(cw);
    cw.visitEnd();
    return AsmUtils.writeClassToFile(className, cw.toByteArray());
}