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

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

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Introduction

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

Prototype

public Method(final String name, final Type returnType, final Type[] argumentTypes)

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Document

Constructs a new Method .

Usage

From source file:org.kjots.json.object.JsonObjectGeneratorBase.java

License:Apache License

/**
 * Retrieve the constructor with the given argument types.
 *
 * @param argumentTypes The argument types.
 * @return The constructor.//w w w.  j a v  a  2  s .  c o m
 */
private static Method getConstructor(Type... argumentTypes) {
    return new Method("<init>", Type.VOID_TYPE, argumentTypes);
}

From source file:org.kjots.json.object.JsonObjectGeneratorBase.java

License:Apache License

/**
 * Generate a get Java character primitive property method.
 *
 * @param classVisitor The class visitor.
 * @param jsonObjectImplType The type of the JSON object implementation.
 * @param method The method.//w w  w  .ja v  a 2s . c o m
 * @param propertyName The name of the property.
 */
private void generateGetJavaCharacterPrimitivePropertyMethod(ClassVisitor classVisitor, Type jsonObjectImplType,
        Method method, String propertyName) {
    Type jsonStringPrimitiveType = Type.getType(String.class);

    MethodVisitor methodVisitor = classVisitor.visitMethod(ACC_PUBLIC + ACC_FINAL, method, null, null);

    Label start = new Label();
    Label l0 = new Label();
    Label l1 = new Label();
    Label end = new Label();

    methodVisitor.visitCode();

    methodVisitor.visitLabel(start);
    methodVisitor.visitVarInsn(ALOAD, 0);
    methodVisitor.visitLdcInsn(propertyName);
    methodVisitor.visitMethodInsn(INVOKEVIRTUAL, jsonObjectImplType,
            this.getGetJsonPrimitivePropertyMethod(jsonStringPrimitiveType));
    methodVisitor.visitVarInsn(ASTORE, 1);
    methodVisitor.visitVarInsn(ALOAD, 1);
    methodVisitor.visitJumpInsn(IFNULL, l0);
    methodVisitor.visitVarInsn(ALOAD, 1);
    methodVisitor.visitMethodInsn(INVOKEVIRTUAL, jsonStringPrimitiveType,
            new Method("isEmpty", Type.BOOLEAN_TYPE, new Type[] {}));
    methodVisitor.visitJumpInsn(IFNE, l0);
    methodVisitor.visitVarInsn(ALOAD, 1);
    methodVisitor.visitInsn(ICONST_0);
    methodVisitor.visitMethodInsn(INVOKEVIRTUAL, jsonStringPrimitiveType,
            new Method("charAt", Type.CHAR_TYPE, new Type[] { Type.INT_TYPE }));
    methodVisitor.visitJumpInsn(GOTO, l1);
    methodVisitor.visitLabel(l0);
    methodVisitor.visitFrame(Opcodes.F_APPEND, 1, new Object[] { jsonStringPrimitiveType }, 0, null);
    methodVisitor.visitInsn(ICONST_0);
    methodVisitor.visitLabel(l1);
    methodVisitor.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { Opcodes.INTEGER });
    methodVisitor.visitInsn(IRETURN);
    methodVisitor.visitLabel(end);

    methodVisitor.visitLocalVariable("this", jsonObjectImplType, null, start, end, 0);
    methodVisitor.visitLocalVariable("_" + propertyName, jsonStringPrimitiveType, null, start, end, 1);
    methodVisitor.visitMaxs(2, 2);

    methodVisitor.visitEnd();
}

From source file:org.kjots.json.object.JsonObjectGeneratorBase.java

License:Apache License

/**
 * Generate a set Java character primitive property method.
 *
 * @param classVisitor The class visitor.
 * @param jsonObjectImplType The type of the JSON object implementation.
 * @param method The method.//from ww w. jav  a  2s .  c o m
 * @param propertyName The name of the property.
 */
private void generateSetJavaCharacterPrimitivePropertyMethod(ClassVisitor classVisitor, Type jsonObjectImplType,
        Method method, String propertyName) {
    Type jsonStringPrimitiveType = Type.getType(String.class);
    MethodVisitor methodVisitor = classVisitor.visitMethod(ACC_PUBLIC + ACC_FINAL, method, null, null);

    Label start = new Label();
    Label end = new Label();

    methodVisitor.visitCode();

    methodVisitor.visitLabel(start);
    methodVisitor.visitVarInsn(ALOAD, 0);
    methodVisitor.visitLdcInsn(propertyName);
    methodVisitor.visitVarInsn(ILOAD, 1);
    methodVisitor.visitMethodInsn(INVOKESTATIC, Type.getType(Character.class),
            new Method("toString", jsonStringPrimitiveType, new Type[] { Type.CHAR_TYPE }));
    methodVisitor.visitMethodInsn(INVOKEVIRTUAL, jsonObjectImplType,
            this.getSetJsonPrimitivePropertyMethod(jsonStringPrimitiveType));
    methodVisitor.visitInsn(RETURN);
    methodVisitor.visitLabel(end);

    methodVisitor.visitLocalVariable("this", jsonObjectImplType, null, start, end, 0);
    methodVisitor.visitLocalVariable(propertyName, Type.CHAR_TYPE, null, start, end, 1);
    methodVisitor.visitMaxs(3, 2);

    methodVisitor.visitEnd();
}

From source file:org.kjots.json.object.JsonObjectGeneratorBase.java

License:Apache License

/**
 * Generate a get adapted primitive property method.
 *
 * @param classVisitor The class visitor.
 * @param jsonObjectImplType The type of the JSON object implementation.
 * @param method The method./*from w w  w. j a v  a 2  s  .  c om*/
 * @param propertyName The name of the property.
 * @param jsonPrimitiveType The type of the JSON primitive.
 * @param adapterType The type of the adapter.
 * @param propertyType The type of the property.
 */
private void generateGetAdaptedPrimitivePropertyMethod(ClassVisitor classVisitor, Type jsonObjectImplType,
        Method method, String propertyName, Type jsonPrimitiveType, Type adapterType, Type propertyType) {
    MethodVisitor methodVisitor = classVisitor.visitMethod(ACC_PUBLIC + ACC_FINAL, method, null, null);

    Label start = new Label();
    Label end = new Label();

    methodVisitor.visitCode();

    methodVisitor.visitLabel(start);
    methodVisitor.visitVarInsn(ALOAD, 0);
    methodVisitor.visitLdcInsn(propertyName);
    methodVisitor.visitMethodInsn(INVOKEVIRTUAL, jsonObjectImplType,
            this.getGetJsonPrimitivePropertyMethod(jsonPrimitiveType));
    methodVisitor.visitVarInsn(ASTORE, 1);
    methodVisitor.visitMethodInsn(INVOKESTATIC, Type.getType(JsonObjectFactory.class),
            new Method("get", Type.getType(JsonObjectFactory.class), new Type[] {}));
    methodVisitor.visitLdcInsn(adapterType);
    methodVisitor.visitMethodInsn(INVOKEVIRTUAL, Type.getType(JsonObjectFactory.class),
            new Method("getJsonPropertyAdapter", Type.getType(JsonPropertyAdapter.class),
                    new Type[] { Type.getType(Class.class) }));
    methodVisitor.visitTypeInsn(CHECKCAST, adapterType);
    methodVisitor.visitVarInsn(ALOAD, 1);
    methodVisitor.visitMethodInsn(INVOKEVIRTUAL, adapterType,
            this.getFromJsonPropertyMethod(jsonPrimitiveType, propertyType));
    methodVisitor.visitInsn(ARETURN);
    methodVisitor.visitLabel(end);

    methodVisitor.visitLocalVariable("this", jsonObjectImplType, null, start, end, 0);
    methodVisitor.visitLocalVariable("_" + propertyName, jsonPrimitiveType, null, start, end, 1);
    methodVisitor.visitMaxs(2, 2);

    methodVisitor.visitEnd();
}

From source file:org.kjots.json.object.JsonObjectGeneratorBase.java

License:Apache License

/**
 * Generate a set adapted primitive property method.
 *
 * @param classVisitor The class visitor.
 * @param jsonObjectImplType The type of the JSON object implementation.
 * @param method The method./* w  w  w  .  j  a v  a2s. c  o m*/
 * @param propertyName The name of the property.
 * @param jsonPrimitiveType The type of the JSON primitive.
 * @param adapterType The type of the adapter.
 * @param propertyType The type of the property.
 */
private void generateSetAdaptedPrimitivePropertyMethod(ClassVisitor classVisitor, Type jsonObjectImplType,
        Method method, String propertyName, Type jsonPrimitiveType, Type adapterType, Type propertyType) {
    MethodVisitor methodVisitor = classVisitor.visitMethod(ACC_PUBLIC + ACC_FINAL, method, null, null);

    Label start = new Label();
    Label end = new Label();

    methodVisitor.visitCode();
    methodVisitor.visitLabel(start);
    methodVisitor.visitMethodInsn(INVOKESTATIC, Type.getType(JsonObjectFactory.class),
            new Method("get", Type.getType(JsonObjectFactory.class), new Type[] {}));
    methodVisitor.visitLdcInsn(adapterType);
    methodVisitor.visitMethodInsn(INVOKEVIRTUAL, Type.getType(JsonObjectFactory.class),
            new Method("getJsonPropertyAdapter", Type.getType(JsonPropertyAdapter.class),
                    new Type[] { Type.getType(Class.class) }));
    methodVisitor.visitTypeInsn(CHECKCAST, adapterType);
    methodVisitor.visitVarInsn(ALOAD, 1);
    methodVisitor.visitMethodInsn(INVOKEVIRTUAL, adapterType,
            this.getToJsonPropertyMethod(jsonPrimitiveType, propertyType));
    methodVisitor.visitVarInsn(ASTORE, 2);
    methodVisitor.visitVarInsn(ALOAD, 0);
    methodVisitor.visitLdcInsn(propertyName);
    methodVisitor.visitVarInsn(ALOAD, 2);
    methodVisitor.visitMethodInsn(INVOKEVIRTUAL, jsonObjectImplType,
            this.getSetJsonPrimitivePropertyMethod(jsonPrimitiveType));
    methodVisitor.visitInsn(RETURN);
    methodVisitor.visitLabel(end);

    methodVisitor.visitLocalVariable("this", jsonObjectImplType, null, start, end, 0);
    methodVisitor.visitLocalVariable(propertyName, propertyType, null, start, end, 1);
    methodVisitor.visitLocalVariable("_" + propertyName, jsonPrimitiveType, null, start, end, 2);
    methodVisitor.visitMaxs(3, 3);

    methodVisitor.visitEnd();
}

From source file:org.kjots.json.object.JsonObjectGeneratorBase.java

License:Apache License

/**
 * Generate a get adapted object property method.
 *
 * @param classVisitor The class visitor.
 * @param jsonObjectImplType The type of the JSON object implementation.
 * @param method The method.// w ww  . ja v a 2 s.  c  om
 * @param propertyName The name of the property.
 * @param jsonObjectType The type of the JSON object.
 * @param adapterType The type of the adapter.
 * @param propertyType The type of the property.
 */
private void generateGetAdaptedObjectPropertyMethod(ClassVisitor classVisitor, Type jsonObjectImplType,
        Method method, String propertyName, Type jsonObjectType, Type adapterType, Type propertyType) {
    MethodVisitor methodVisitor = classVisitor.visitMethod(ACC_PUBLIC + ACC_FINAL, method, null, null);

    Label start = new Label();
    Label end = new Label();

    methodVisitor.visitCode();

    methodVisitor.visitLabel(start);
    methodVisitor.visitVarInsn(ALOAD, 0);
    methodVisitor.visitLdcInsn(propertyName);
    methodVisitor.visitLdcInsn(jsonObjectType);
    methodVisitor.visitMethodInsn(INVOKEVIRTUAL, jsonObjectImplType, this.getGetJsonObjectPropertyMethod());
    methodVisitor.visitTypeInsn(CHECKCAST, jsonObjectType);
    methodVisitor.visitVarInsn(ASTORE, 1);
    methodVisitor.visitMethodInsn(INVOKESTATIC, Type.getType(JsonObjectFactory.class),
            new Method("get", Type.getType(JsonObjectFactory.class), new Type[] {}));
    methodVisitor.visitLdcInsn(adapterType);
    methodVisitor.visitMethodInsn(INVOKEVIRTUAL, Type.getType(JsonObjectFactory.class),
            new Method("getJsonPropertyAdapter", Type.getType(JsonPropertyAdapter.class),
                    new Type[] { Type.getType(Class.class) }));
    methodVisitor.visitTypeInsn(CHECKCAST, adapterType);
    methodVisitor.visitVarInsn(ALOAD, 1);
    methodVisitor.visitMethodInsn(INVOKEVIRTUAL, adapterType,
            this.getFromJsonPropertyMethod(jsonObjectType, propertyType));
    methodVisitor.visitInsn(ARETURN);
    methodVisitor.visitLabel(end);

    methodVisitor.visitLocalVariable("this", jsonObjectImplType, null, start, end, 0);
    methodVisitor.visitLocalVariable("_" + propertyName, jsonObjectType, null, start, end, 1);
    methodVisitor.visitMaxs(3, 2);

    methodVisitor.visitEnd();
}

From source file:org.kjots.json.object.JsonObjectGeneratorBase.java

License:Apache License

/**
 * Generate a set adapted object property method.
 *
 * @param classVisitor The class visitor.
 * @param jsonObjectImplType The type of the JSON object implementation.
 * @param method The method./*from   w  ww .j a v  a 2 s.  c  o m*/
 * @param propertyName The name of the property.
 * @param jsonObjectType The type of the JSON object.
 * @param adapterType The type of the adapter.
 * @param propertyType The type of the property.
 */
private void generateSetAdaptedObjectPropertyMethod(ClassVisitor classVisitor, Type jsonObjectImplType,
        Method method, String propertyName, Type jsonObjectType, Type adapterType, Type propertyType) {
    MethodVisitor methodVisitor = classVisitor.visitMethod(ACC_PUBLIC + ACC_FINAL, method, null, null);

    Label start = new Label();
    Label end = new Label();

    methodVisitor.visitCode();

    methodVisitor.visitLabel(start);
    methodVisitor.visitMethodInsn(INVOKESTATIC, Type.getType(JsonObjectFactory.class),
            new Method("get", Type.getType(JsonObjectFactory.class), new Type[] {}));
    methodVisitor.visitLdcInsn(adapterType);
    methodVisitor.visitMethodInsn(INVOKEVIRTUAL, Type.getType(JsonObjectFactory.class),
            new Method("getJsonPropertyAdapter", Type.getType(JsonPropertyAdapter.class),
                    new Type[] { Type.getType(Class.class) }));
    methodVisitor.visitTypeInsn(CHECKCAST, adapterType);
    methodVisitor.visitVarInsn(ALOAD, 1);
    methodVisitor.visitMethodInsn(INVOKEVIRTUAL, adapterType,
            this.getToJsonPropertyMethod(jsonObjectType, propertyType));
    methodVisitor.visitVarInsn(ASTORE, 2);
    methodVisitor.visitVarInsn(ALOAD, 0);
    methodVisitor.visitLdcInsn(propertyName);
    methodVisitor.visitVarInsn(ALOAD, 2);
    methodVisitor.visitMethodInsn(INVOKEVIRTUAL, jsonObjectImplType, this.getSetJsonObjectPropertyMethod());
    methodVisitor.visitInsn(RETURN);
    methodVisitor.visitLabel(end);

    methodVisitor.visitLocalVariable("this", jsonObjectImplType, null, start, end, 0);
    methodVisitor.visitLocalVariable(propertyName, propertyType, null, start, end, 1);
    methodVisitor.visitLocalVariable("_" + propertyName, jsonObjectType, null, start, end, 2);
    methodVisitor.visitMaxs(3, 3);

    methodVisitor.visitEnd();
}

From source file:org.kjots.json.object.JsonObjectGeneratorBase.java

License:Apache License

/**
 * Retrieve the JSON function method with the given name for the given JSON
 * object method./*from   w w  w  . ja v  a  2  s  . c om*/
 *
 * @param jsonObjectClass The class of the JSON object.
 * @param jsonObjectMethod The JSON object method.
 * @param jsonFunctionAnnotation The JSON function annotation.
 * @return The JSON function method.
 */
private Method getJsonFunctionMethod(Class<?> jsonObjectClass, Method jsonObjectMethod,
        JsonFunction jsonFunctionAnnotation) {
    Set<Method> methods = new HashSet<Method>();
    for (java.lang.reflect.Method javaMethod : jsonFunctionAnnotation.klass().getDeclaredMethods()) {
        if (Modifier.isStatic(javaMethod.getModifiers())
                && javaMethod.getName().equals(jsonFunctionAnnotation.method())) {
            methods.add(Method.getMethod(javaMethod));
        }
    }

    if (!methods.isEmpty()) {
        Type[] argumentTypes = jsonObjectMethod.getArgumentTypes();

        while (jsonObjectClass != null) {
            Type[] jsonFunctionArgumentTypes = new Type[argumentTypes.length + 1];

            jsonFunctionArgumentTypes[0] = Type.getType(jsonObjectClass);
            System.arraycopy(argumentTypes, 0, jsonFunctionArgumentTypes, 1, argumentTypes.length);

            Method method = new Method(jsonFunctionAnnotation.method(), jsonObjectMethod.getReturnType(),
                    jsonFunctionArgumentTypes);
            if (methods.contains(method)) {
                return method;
            }

            jsonObjectClass = !jsonObjectClass.equals(JsonObject.class) ? jsonObjectClass.getInterfaces()[0]
                    : null;
        }
    }

    throw new IllegalArgumentException(jsonFunctionAnnotation.klass().getName()
            + " does not contain a suitable method named " + jsonFunctionAnnotation.method());
}

From source file:org.kjots.json.object.JsonObjectGeneratorBase.java

License:Apache License

/**
 * Retrieve the has JSON property method.
 *
 * @return The has JSON property method.
 *//* w  w  w . j  a  v a  2 s.c o m*/
private Method getHasJsonPropertyMethod() {
    return new Method("hasProperty", Type.BOOLEAN_TYPE, new Type[] { Type.getType(String.class) });
}

From source file:org.kjots.json.object.JsonObjectGeneratorBase.java

License:Apache License

/**
 * Retrieve the is null JSON property method.
 *
 * @return The is null JSON property method.
 */// ww  w.j ava2  s . c o m
private Method getIsNullJsonPropertyMethod() {
    return new Method("isNullProperty", Type.BOOLEAN_TYPE, new Type[] { Type.getType(String.class) });
}