1 files changed, 68 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/dependencies/LocalModulesHelpers.js b/node_modules/webpack/lib/dependencies/LocalModulesHelpers.js
new file mode 100644
index 00000000..21157ebb
--- /dev/null
+++ b/node_modules/webpack/lib/dependencies/LocalModulesHelpers.js
@@ -0,0 +1,68 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const LocalModule = require("./LocalModule");
+
+/** @typedef {import("../javascript/JavascriptParser").ParserState} ParserState */
+
+/**
+ * @param {string} parent parent module
+ * @param {string} mod module to resolve
+ * @returns {string} resolved module
+ */
+const lookup = (parent, mod) => {
+	if (mod.charAt(0) !== ".") return mod;
+
+	var path = parent.split("/");
+	var segments = mod.split("/");
+	path.pop();
+
+	for (let i = 0; i < segments.length; i++) {
+		const seg = segments[i];
+		if (seg === "..") {
+			path.pop();
+		} else if (seg !== ".") {
+			path.push(seg);
+		}
+	}
+
+	return path.join("/");
+};
+
+/**
+ * @param {ParserState} state parser state
+ * @param {string} name name
+ * @returns {LocalModule} local module
+ */
+exports.addLocalModule = (state, name) => {
+	if (!state.localModules) {
+		state.localModules = [];
+	}
+	const m = new LocalModule(name, state.localModules.length);
+	state.localModules.push(m);
+	return m;
+};
+
+/**
+ * @param {ParserState} state parser state
+ * @param {string} name name
+ * @param {string} [namedModule] named module
+ * @returns {LocalModule | null} local module or null
+ */
+exports.getLocalModule = (state, name, namedModule) => {
+	if (!state.localModules) return null;
+	if (namedModule) {
+		// resolve dependency name relative to the defining named module
+		name = lookup(namedModule, name);
+	}
+	for (let i = 0; i < state.localModules.length; i++) {
+		if (state.localModules[i].name === name) {
+			return state.localModules[i];
+		}
+	}
+	return null;
+};