Initial commit: Developer Tools MVP with visual editor

- Complete React app with 7 developer tools
- JSON Tool with visual structured editor
- Serialize Tool with visual structured editor
- URL, Base64, CSV/JSON, Beautifier, Diff tools
- Responsive navigation with dropdown menu
- Dark/light mode toggle
- Mobile-responsive design with sticky header
- All tools working with copy/paste functionality

node_modules/webpack/lib/dependencies/processExportInfo.js

@@ -0,0 +1,68 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const { UsageState } = require("../ExportsInfo");
+
+/** @typedef {import("../ExportsInfo").ExportInfo} ExportInfo */
+/** @typedef {import("../util/runtime").RuntimeSpec} RuntimeSpec */
+
+/** @typedef {string[][]} ReferencedExports */
+
+/**
+ * @param {RuntimeSpec} runtime the runtime
+ * @param {ReferencedExports} referencedExports list of referenced exports, will be added to
+ * @param {string[]} prefix export prefix
+ * @param {ExportInfo=} exportInfo the export info
+ * @param {boolean} defaultPointsToSelf when true, using default will reference itself
+ * @param {Set<ExportInfo>} alreadyVisited already visited export info (to handle circular reexports)
+ */
+const processExportInfo = (
+	runtime,
+	referencedExports,
+	prefix,
+	exportInfo,
+	defaultPointsToSelf = false,
+	alreadyVisited = new Set()
+) => {
+	if (!exportInfo) {
+		referencedExports.push(prefix);
+		return;
+	}
+	const used = exportInfo.getUsed(runtime);
+	if (used === UsageState.Unused) return;
+	if (alreadyVisited.has(exportInfo)) {
+		referencedExports.push(prefix);
+		return;
+	}
+	alreadyVisited.add(exportInfo);
+	if (
+		used !== UsageState.OnlyPropertiesUsed ||
+		!exportInfo.exportsInfo ||
+		exportInfo.exportsInfo.otherExportsInfo.getUsed(runtime) !==
+			UsageState.Unused
+	) {
+		alreadyVisited.delete(exportInfo);
+		referencedExports.push(prefix);
+		return;
+	}
+	const exportsInfo = exportInfo.exportsInfo;
+	for (const exportInfo of exportsInfo.orderedExports) {
+		processExportInfo(
+			runtime,
+			referencedExports,
+			defaultPointsToSelf && exportInfo.name === "default"
+				? prefix
+				: [...prefix, exportInfo.name],
+			exportInfo,
+			false,
+			alreadyVisited
+		);
+	}
+	alreadyVisited.delete(exportInfo);
+};
+
+module.exports = processExportInfo;