com.caoccao.javet.values.reference.IV8ValueArray 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.values.V8Value;
import com.caoccao.javet.values.primitive.V8ValueNull;
import com.caoccao.javet.values.primitive.V8ValuePrimitive;
import com.caoccao.javet.values.primitive.V8ValueUndefined;

import java.math.BigInteger;
import java.util.List;

@SuppressWarnings("unchecked")
public interface IV8ValueArray extends IV8ValueObject {
    @CheckReturnValue
     T get(int index) throws JavetException;

    List getKeys() throws JavetException;

    int getLength() throws JavetException;

    @CheckReturnValue
     T pop() throws JavetException;

    default BigInteger popBigInteger() throws JavetException {
        return popPrimitive();
    }

    default Boolean popBoolean() throws JavetException {
        return popPrimitive();
    }

    default Double popDouble() throws JavetException {
        return popPrimitive();
    }

    default Integer popInteger() throws JavetException {
        return popPrimitive();
    }

    default Long popLong() throws JavetException {
        return popPrimitive();
    }

    default V8ValueNull popNull() throws JavetException {
        return pop();
    }

    default  T popObject() throws JavetException {
        try {
            return getV8Runtime().toObject(pop(), true);
        } catch (JavetException e) {
            throw e;
        } catch (Throwable t) {
            return null;
        }
    }

    default > R popPrimitive() throws JavetException {
        try (V8Value v8Value = pop()) {
            return ((T) v8Value).getValue();
        } catch (JavetException e) {
            throw e;
        } catch (Throwable ignored) {
        }
        return null;
    }

    default String popString() throws JavetException {
        return popPrimitive();
    }

    default V8ValueUndefined popUndefined() throws JavetException {
        return pop();
    }

    int push(Object value) throws JavetException;

    default int pushNull() throws JavetException {
        return push(getV8Runtime().createV8ValueNull());
    }

    default int pushUndefined() throws JavetException {
        return push(getV8Runtime().createV8ValueUndefined());
    }

    @CheckReturnValue
    default V8Value[] toArray() throws JavetException {
        final int length = getLength();
        V8Value[] v8Values = new V8Value[length];
        for (int i = 0; i < length; ++i) {
            v8Values[i] = get(i);
        }
        return v8Values;
    }
}