mirror of https://github.com/webpack/webpack.git
95 lines
2.6 KiB
JavaScript
95 lines
2.6 KiB
JavaScript
const path = require("path");
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const BinaryMiddleware = require("../lib/serialization/BinaryMiddleware");
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const FileMiddleware = require("../lib/serialization/FileMiddleware");
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const Serializer = require("../lib/serialization/Serializer");
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const serializer = new Serializer([
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new BinaryMiddleware(),
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new FileMiddleware()
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]);
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const ESCAPE = null;
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const ESCAPE_ESCAPE_VALUE = null;
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const ESCAPE_END_OBJECT = true;
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const ESCAPE_UNDEFINED = false;
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const printData = async (data, indent) => {
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if (!Array.isArray(data)) throw new Error("Not an array");
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if (Buffer.isBuffer(data[0])) {
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for (const b of data) {
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if (typeof b === "function") {
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const innerData = await b();
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console.log(`${indent}= lazy {`);
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await printData(innerData, indent + " ");
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console.log(`${indent}}`);
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} else {
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console.log(`${indent}= ${b.toString("hex")}`);
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}
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}
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return;
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}
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let currentReference = 0;
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let currentTypeReference = 0;
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let i = 0;
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const read = () => {
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return data[i++];
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};
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const printLine = content => {
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console.log(`${indent}${content}`);
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};
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printLine(`Version: ${read()}`);
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while (i < data.length) {
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const item = read();
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if (item === ESCAPE) {
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const nextItem = read();
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if (nextItem === ESCAPE_ESCAPE_VALUE) {
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printLine("null");
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} else if (nextItem === ESCAPE_UNDEFINED) {
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printLine("undefined");
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} else if (nextItem === ESCAPE_END_OBJECT) {
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indent = indent.slice(0, indent.length - 2);
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printLine(`} = #${currentReference++}`);
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} else if (typeof nextItem === "number" && nextItem < 0) {
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printLine(`Reference ${nextItem} => #${currentReference + nextItem}`);
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} else {
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const request = nextItem;
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if (typeof request === "number") {
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printLine(
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`Object (Reference ${request} => @${currentTypeReference -
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request}) {`
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);
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} else {
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const name = read();
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printLine(
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`Object (${request} / ${name} @${currentTypeReference++}) {`
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);
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}
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indent += " ";
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}
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} else if (typeof item === "string") {
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if (item !== "") {
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printLine(`${JSON.stringify(item)} = #${currentReference++}`);
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} else {
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printLine('""');
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}
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} else if (Buffer.isBuffer(item)) {
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printLine(`buffer ${item.toString("hex")} = #${currentReference++}`);
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} else if (typeof item === "function") {
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const innerData = await item();
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printLine(`lazy {`);
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await printData(innerData, indent + " ");
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printLine(`}`);
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} else {
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printLine(`${item}`);
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}
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}
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};
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const filename = process.argv[2];
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console.log(`Printing content of ${filename}`);
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serializer
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.deserializeFromFile(path.resolve(filename))
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.then(data => printData(data, ""));
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