Current Dev State

static/js/ketcher2/node_modules/babel-helper-remap-async-to-generator/lib/index.js

@@ -0,0 +1,175 @@
+"use strict";
+
+exports.__esModule = true;
+
+exports.default = function (path, file, helpers) {
+  if (!helpers) {
+    helpers = { wrapAsync: file };
+    file = null;
+  }
+  path.traverse(awaitVisitor, {
+    file: file,
+    wrapAwait: helpers.wrapAwait
+  });
+
+  if (path.isClassMethod() || path.isObjectMethod()) {
+    classOrObjectMethod(path, helpers.wrapAsync);
+  } else {
+    plainFunction(path, helpers.wrapAsync);
+  }
+};
+
+var _babelHelperFunctionName = require("babel-helper-function-name");
+
+var _babelHelperFunctionName2 = _interopRequireDefault(_babelHelperFunctionName);
+
+var _babelTemplate = require("babel-template");
+
+var _babelTemplate2 = _interopRequireDefault(_babelTemplate);
+
+var _babelTypes = require("babel-types");
+
+var t = _interopRequireWildcard(_babelTypes);
+
+var _forAwait = require("./for-await");
+
+var _forAwait2 = _interopRequireDefault(_forAwait);
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var buildWrapper = (0, _babelTemplate2.default)("\n  (() => {\n    var REF = FUNCTION;\n    return function NAME(PARAMS) {\n      return REF.apply(this, arguments);\n    };\n  })\n");
+
+var namedBuildWrapper = (0, _babelTemplate2.default)("\n  (() => {\n    var REF = FUNCTION;\n    function NAME(PARAMS) {\n      return REF.apply(this, arguments);\n    }\n    return NAME;\n  })\n");
+
+var awaitVisitor = {
+  Function: function Function(path) {
+    if (path.isArrowFunctionExpression() && !path.node.async) {
+      path.arrowFunctionToShadowed();
+      return;
+    }
+    path.skip();
+  },
+  AwaitExpression: function AwaitExpression(_ref, _ref2) {
+    var node = _ref.node;
+    var wrapAwait = _ref2.wrapAwait;
+
+    node.type = "YieldExpression";
+    if (wrapAwait) {
+      node.argument = t.callExpression(wrapAwait, [node.argument]);
+    }
+  },
+  ForAwaitStatement: function ForAwaitStatement(path, _ref3) {
+    var file = _ref3.file,
+        wrapAwait = _ref3.wrapAwait;
+    var node = path.node;
+
+
+    var build = (0, _forAwait2.default)(path, {
+      getAsyncIterator: file.addHelper("asyncIterator"),
+      wrapAwait: wrapAwait
+    });
+
+    var declar = build.declar,
+        loop = build.loop;
+
+    var block = loop.body;
+
+    path.ensureBlock();
+
+    if (declar) {
+      block.body.push(declar);
+    }
+
+    block.body = block.body.concat(node.body.body);
+
+    t.inherits(loop, node);
+    t.inherits(loop.body, node.body);
+
+    if (build.replaceParent) {
+      path.parentPath.replaceWithMultiple(build.node);
+      path.remove();
+    } else {
+      path.replaceWithMultiple(build.node);
+    }
+  }
+};
+
+function classOrObjectMethod(path, callId) {
+  var node = path.node;
+  var body = node.body;
+
+  node.async = false;
+
+  var container = t.functionExpression(null, [], t.blockStatement(body.body), true);
+  container.shadow = true;
+  body.body = [t.returnStatement(t.callExpression(t.callExpression(callId, [container]), []))];
+
+  node.generator = false;
+}
+
+function plainFunction(path, callId) {
+  var node = path.node;
+  var isDeclaration = path.isFunctionDeclaration();
+  var asyncFnId = node.id;
+  var wrapper = buildWrapper;
+
+  if (path.isArrowFunctionExpression()) {
+    path.arrowFunctionToShadowed();
+  } else if (!isDeclaration && asyncFnId) {
+    wrapper = namedBuildWrapper;
+  }
+
+  node.async = false;
+  node.generator = true;
+
+  node.id = null;
+
+  if (isDeclaration) {
+    node.type = "FunctionExpression";
+  }
+
+  var built = t.callExpression(callId, [node]);
+  var container = wrapper({
+    NAME: asyncFnId,
+    REF: path.scope.generateUidIdentifier("ref"),
+    FUNCTION: built,
+    PARAMS: node.params.reduce(function (acc, param) {
+      acc.done = acc.done || t.isAssignmentPattern(param) || t.isRestElement(param);
+
+      if (!acc.done) {
+        acc.params.push(path.scope.generateUidIdentifier("x"));
+      }
+
+      return acc;
+    }, {
+      params: [],
+      done: false
+    }).params
+  }).expression;
+
+  if (isDeclaration) {
+    var declar = t.variableDeclaration("let", [t.variableDeclarator(t.identifier(asyncFnId.name), t.callExpression(container, []))]);
+    declar._blockHoist = true;
+
+    path.replaceWith(declar);
+  } else {
+    var retFunction = container.body.body[1].argument;
+    if (!asyncFnId) {
+      (0, _babelHelperFunctionName2.default)({
+        node: retFunction,
+        parent: path.parent,
+        scope: path.scope
+      });
+    }
+
+    if (!retFunction || retFunction.id || node.params.length) {
+      path.replaceWith(t.callExpression(container, []));
+    } else {
+      path.replaceWith(built);
+    }
+  }
+}
+
+module.exports = exports["default"];