1 files changed, 58 insertions, 0 deletions
diff --git a/node_modules/@jridgewell/set-array/dist/set-array.umd.js b/node_modules/@jridgewell/set-array/dist/set-array.umd.js
new file mode 100644
index 0000000..a1c200a
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+++ b/node_modules/@jridgewell/set-array/dist/set-array.umd.js
@@ -0,0 +1,58 @@
+(function (global, factory) {
+    typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+    typeof define === 'function' && define.amd ? define(['exports'], factory) :
+    (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.setArray = {}));
+})(this, (function (exports) { 'use strict';
+
+    /**
+     * Gets the index associated with `key` in the backing array, if it is already present.
+     */
+    exports.get = void 0;
+    /**
+     * Puts `key` into the backing array, if it is not already present. Returns
+     * the index of the `key` in the backing array.
+     */
+    exports.put = void 0;
+    /**
+     * Pops the last added item out of the SetArray.
+     */
+    exports.pop = void 0;
+    /**
+     * SetArray acts like a `Set` (allowing only one occurrence of a string `key`), but provides the
+     * index of the `key` in the backing array.
+     *
+     * This is designed to allow synchronizing a second array with the contents of the backing array,
+     * like how in a sourcemap `sourcesContent[i]` is the source content associated with `source[i]`,
+     * and there are never duplicates.
+     */
+    class SetArray {
+        constructor() {
+            this._indexes = { __proto__: null };
+            this.array = [];
+        }
+    }
+    (() => {
+        exports.get = (strarr, key) => strarr._indexes[key];
+        exports.put = (strarr, key) => {
+            // The key may or may not be present. If it is present, it's a number.
+            const index = exports.get(strarr, key);
+            if (index !== undefined)
+                return index;
+            const { array, _indexes: indexes } = strarr;
+            return (indexes[key] = array.push(key) - 1);
+        };
+        exports.pop = (strarr) => {
+            const { array, _indexes: indexes } = strarr;
+            if (array.length === 0)
+                return;
+            const last = array.pop();
+            indexes[last] = undefined;
+        };
+    })();
+
+    exports.SetArray = SetArray;
+
+    Object.defineProperty(exports, '__esModule', { value: true });
+
+}));
+//# sourceMappingURL=set-array.umd.js.map