Initial commit

node_modules/@babel/helper-define-polyfill-provider/lib/imports-injector.js

@@ -0,0 +1,107 @@
+"use strict";
+
+exports.__esModule = true;
+exports.default = void 0;
+var _babel = _interopRequireWildcard(require("@babel/core"));
+function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
+function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+const {
+  types: t
+} = _babel.default || _babel;
+class ImportsCachedInjector {
+  constructor(resolver, getPreferredIndex) {
+    this._imports = new WeakMap();
+    this._anonymousImports = new WeakMap();
+    this._lastImports = new WeakMap();
+    this._resolver = resolver;
+    this._getPreferredIndex = getPreferredIndex;
+  }
+  storeAnonymous(programPath, url, moduleName, getVal) {
+    const key = this._normalizeKey(programPath, url);
+    const imports = this._ensure(this._anonymousImports, programPath, Set);
+    if (imports.has(key)) return;
+    const node = getVal(programPath.node.sourceType === "script", t.stringLiteral(this._resolver(url)));
+    imports.add(key);
+    this._injectImport(programPath, node, moduleName);
+  }
+  storeNamed(programPath, url, name, moduleName, getVal) {
+    const key = this._normalizeKey(programPath, url, name);
+    const imports = this._ensure(this._imports, programPath, Map);
+    if (!imports.has(key)) {
+      const {
+        node,
+        name: id
+      } = getVal(programPath.node.sourceType === "script", t.stringLiteral(this._resolver(url)), t.identifier(name));
+      imports.set(key, id);
+      this._injectImport(programPath, node, moduleName);
+    }
+    return t.identifier(imports.get(key));
+  }
+  _injectImport(programPath, node, moduleName) {
+    var _this$_lastImports$ge;
+    const newIndex = this._getPreferredIndex(moduleName);
+    const lastImports = (_this$_lastImports$ge = this._lastImports.get(programPath)) != null ? _this$_lastImports$ge : [];
+    const isPathStillValid = path => path.node &&
+    // Sometimes the AST is modified and the "last import"
+    // we have has been replaced
+    path.parent === programPath.node && path.container === programPath.node.body;
+    let last;
+    if (newIndex === Infinity) {
+      // Fast path: we can always just insert at the end if newIndex is `Infinity`
+      if (lastImports.length > 0) {
+        last = lastImports[lastImports.length - 1].path;
+        if (!isPathStillValid(last)) last = undefined;
+      }
+    } else {
+      for (const [i, data] of lastImports.entries()) {
+        const {
+          path,
+          index
+        } = data;
+        if (isPathStillValid(path)) {
+          if (newIndex < index) {
+            const [newPath] = path.insertBefore(node);
+            lastImports.splice(i, 0, {
+              path: newPath,
+              index: newIndex
+            });
+            return;
+          }
+          last = path;
+        }
+      }
+    }
+    if (last) {
+      const [newPath] = last.insertAfter(node);
+      lastImports.push({
+        path: newPath,
+        index: newIndex
+      });
+    } else {
+      const [newPath] = programPath.unshiftContainer("body", node);
+      this._lastImports.set(programPath, [{
+        path: newPath,
+        index: newIndex
+      }]);
+    }
+  }
+  _ensure(map, programPath, Collection) {
+    let collection = map.get(programPath);
+    if (!collection) {
+      collection = new Collection();
+      map.set(programPath, collection);
+    }
+    return collection;
+  }
+  _normalizeKey(programPath, url, name = "") {
+    const {
+      sourceType
+    } = programPath.node;
+
+    // If we rely on the imported binding (the "name" parameter), we also need to cache
+    // based on the sourceType. This is because the module transforms change the names
+    // of the import variables.
+    return `${name && sourceType}::${url}::${name}`;
+  }
+}
+exports.default = ImportsCachedInjector;