com.caoccao.javet.values.reference.IV8Module Maven / Gradle / Ivy

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Javet is Java + V8 (JAVa + V + EighT). It is an awesome way of embedding Node.js and V8 in Java.

There is a newer version: 4.0.0

/*
 * Copyright (c) 2021-2022. caoccao.com Sam Cao
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.caoccao.javet.values.reference;

import com.caoccao.javet.annotations.CheckReturnValue;
import com.caoccao.javet.exceptions.JavetException;
import com.caoccao.javet.interop.IV8Executable;
import com.caoccao.javet.values.V8Value;

@SuppressWarnings("unchecked")
public interface IV8Module extends IV8ValueReference, IV8Executable {
    int Uninstantiated = 0;
    int Instantiating = 1;
    int Instantiated = 2;
    int Evaluating = 3;
    int Evaluated = 4;
    int Errored = 5;

    @CheckReturnValue
    default  T evaluate() throws JavetException {
        return evaluate(true);
    }

    @CheckReturnValue
     T evaluate(boolean resultRequired) throws JavetException;

    @Override
    @CheckReturnValue
    default  T execute(boolean resultRequired) throws JavetException {
        if (getStatus() == Uninstantiated) {
            if (!instantiate()) {
                return (T) getV8Runtime().createV8ValueUndefined();
            }
        }
        if (getStatus() == Instantiated) {
            return evaluate(resultRequired);
        }
        return (T) getV8Runtime().createV8ValueUndefined();
    }

    @CheckReturnValue
    V8ValueError getException() throws JavetException;

    String getResourceName();

    /**
     * Gets script id.
     * 
     * Note: This API is not supported by Node because the V8 version is too low.
     *
     * @return the script id
     * @throws JavetException the javet exception
     */
    int getScriptId() throws JavetException;

    int getStatus() throws JavetException;

    boolean instantiate() throws JavetException;

    void setResourceName(String resourceName);

    @Override
    default  T toObject(V v8Value) throws JavetException {
        return getV8Runtime().toObject(v8Value);
    }

    @Override
    @CheckReturnValue
    default  V toV8Value(T object) throws JavetException {
        return getV8Runtime().toV8Value(object);
    }
}