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

Example 36 with MethodVisitor

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

the class SetterBuilder method appendSynthetic.

private static void appendSynthetic(ClassWriter cw, String targetType, String propertyType, String classType) {
    MethodVisitor mv;
    mv = cw.visitMethod(ACC_PUBLIC + ACC_BRIDGE + ACC_SYNTHETIC, "set", "(Ljava/lang/Object;Ljava/lang/Object;)V", null, new String[] { "java/lang/Exception" });
    mv.visitCode();
    mv.visitVarInsn(ALOAD, 0);
    mv.visitVarInsn(ALOAD, 1);
    mv.visitTypeInsn(CHECKCAST, targetType);
    mv.visitVarInsn(ALOAD, 2);
    mv.visitTypeInsn(CHECKCAST, propertyType);
    mv.visitMethodInsn(INVOKEVIRTUAL, classType, "set", "(" + AsmUtils.toTargetTypeDeclaration(targetType) + AsmUtils.toTargetTypeDeclaration(propertyType) + ")V", false);
    mv.visitInsn(RETURN);
    mv.visitMaxs(3, 3);
    mv.visitEnd();
}

Example 37 with MethodVisitor

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

the class SetterBuilder method createPrimitiveSetter.

public static byte[] createPrimitiveSetter(String className, Method method) throws Exception {
    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    MethodVisitor mv;
    Class<?> target = method.getDeclaringClass();
    Class<?> primitive = method.getParameterTypes()[0];
    Class<?> property = AsmUtils.wrappers.get(primitive);
    String targetType = toType(target);
    String primitiveType = AsmUtils.primitivesType.get(primitive);
    String propertyType = toType(property);
    String classType = toType(className);
    String methodSuffix = property.getSimpleName();
    if ("Integer".equals(methodSuffix)) {
        methodSuffix = "Int";
    }
    String valueMethodPrefix = methodSuffix.toLowerCase();
    if ("character".equals(valueMethodPrefix)) {
        valueMethodPrefix = "char";
    }
    String setMethod = "set" + methodSuffix;
    String valueMethod = valueMethodPrefix + "Value";
    int primitiveLoadOp = AsmUtils.loadOps.get(primitive);
    cw.visit(V1_6, ACC_PUBLIC + ACC_FINAL + ACC_SUPER, classType, "Ljava/lang/Object;" + "L" + SETTER_TYPE + "<L" + targetType + ";" + AsmUtils.toTargetTypeDeclaration(propertyType) + ">;" + "L" + ORG_SFM_REFLECT_PRIMITIVE + methodSuffix + "Setter<L" + targetType + ";>;", "java/lang/Object", new String[] { SETTER_TYPE, ORG_SFM_REFLECT_PRIMITIVE + "/" + methodSuffix + "Setter" });
    {
        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();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, setMethod, "(" + AsmUtils.toTargetTypeDeclaration(targetType) + primitiveType + ")V", null, new String[] { "java/lang/Exception" });
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 1);
        mv.visitVarInsn(primitiveLoadOp, 2);
        AsmUtils.invoke(mv, target, method.getName(), "(" + primitiveType + ")" + AsmUtils.toTargetTypeDeclaration(method.getReturnType()));
        mv.visitInsn(RETURN);
        mv.visitMaxs(2, 3);
        mv.visitEnd();
    }
    {
        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, property, valueMethod, "()" + primitiveType);
        AsmUtils.invoke(mv, target, method.getName(), "(" + primitiveType + ")" + AsmUtils.toTargetTypeDeclaration(method.getReturnType()));
        mv.visitInsn(RETURN);
        mv.visitMaxs(2, 3);
        mv.visitEnd();
    }
    appendPrimitiveSynthetic(cw, targetType, primitiveType, propertyType, classType, setMethod, primitiveLoadOp);
    appendToString(cw);
    cw.visitEnd();
    return AsmUtils.writeClassToFile(className, cw.toByteArray());
}