@pdfme/pdf-lib/dist/node/src/core/objects/PDFRef.js

Create and modify PDF files with JavaScript

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const errors_1 = require("../errors");
const PDFObject_1 = __importDefault(require("../objects/PDFObject"));
const utils_1 = require("../../utils");
const ENFORCER = {};
const pool = new Map();
class PDFRef extends PDFObject_1.default {
    constructor(enforcer, objectNumber, generationNumber) {
        if (enforcer !== ENFORCER)
            throw new errors_1.PrivateConstructorError('PDFRef');
        super();
        Object.defineProperty(this, "objectNumber", {
            enumerable: true,
            configurable: true,
            writable: true,
            value: void 0
        });
        Object.defineProperty(this, "generationNumber", {
            enumerable: true,
            configurable: true,
            writable: true,
            value: void 0
        });
        Object.defineProperty(this, "tag", {
            enumerable: true,
            configurable: true,
            writable: true,
            value: void 0
        });
        this.objectNumber = objectNumber;
        this.generationNumber = generationNumber;
        this.tag = `${objectNumber} ${generationNumber} R`;
    }
    clone() {
        return this;
    }
    toString() {
        return this.tag;
    }
    sizeInBytes() {
        return this.tag.length;
    }
    copyBytesInto(buffer, offset) {
        offset += (0, utils_1.copyStringIntoBuffer)(this.tag, buffer, offset);
        return this.tag.length;
    }
}
Object.defineProperty(PDFRef, "of", {
    enumerable: true,
    configurable: true,
    writable: true,
    value: (objectNumber, generationNumber = 0) => {
        const tag = `${objectNumber} ${generationNumber} R`;
        let instance = pool.get(tag);
        if (!instance) {
            instance = new PDFRef(ENFORCER, objectNumber, generationNumber);
            pool.set(tag, instance);
        }
        return instance;
    }
});
exports.default = PDFRef;
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