72 lines
1.9 KiB
JavaScript
72 lines
1.9 KiB
JavaScript
"use strict";
|
|
|
|
exports.__esModule = true;
|
|
|
|
exports.default = function (path) {
|
|
var scope = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : path.scope;
|
|
var node = path.node;
|
|
|
|
var container = t.functionExpression(null, [], node.body, node.generator, node.async);
|
|
|
|
var callee = container;
|
|
var args = [];
|
|
|
|
(0, _babelHelperHoistVariables2.default)(path, function (id) {
|
|
return scope.push({ id: id });
|
|
});
|
|
|
|
var state = {
|
|
foundThis: false,
|
|
foundArguments: false
|
|
};
|
|
|
|
path.traverse(visitor, state);
|
|
|
|
if (state.foundArguments) {
|
|
callee = t.memberExpression(container, t.identifier("apply"));
|
|
args = [];
|
|
|
|
if (state.foundThis) {
|
|
args.push(t.thisExpression());
|
|
}
|
|
|
|
if (state.foundArguments) {
|
|
if (!state.foundThis) args.push(t.nullLiteral());
|
|
args.push(t.identifier("arguments"));
|
|
}
|
|
}
|
|
|
|
var call = t.callExpression(callee, args);
|
|
if (node.generator) call = t.yieldExpression(call, true);
|
|
|
|
return t.returnStatement(call);
|
|
};
|
|
|
|
var _babelHelperHoistVariables = require("babel-helper-hoist-variables");
|
|
|
|
var _babelHelperHoistVariables2 = _interopRequireDefault(_babelHelperHoistVariables);
|
|
|
|
var _babelTypes = require("babel-types");
|
|
|
|
var t = _interopRequireWildcard(_babelTypes);
|
|
|
|
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 visitor = {
|
|
enter: function enter(path, state) {
|
|
if (path.isThisExpression()) {
|
|
state.foundThis = true;
|
|
}
|
|
|
|
if (path.isReferencedIdentifier({ name: "arguments" })) {
|
|
state.foundArguments = true;
|
|
}
|
|
},
|
|
Function: function Function(path) {
|
|
path.skip();
|
|
}
|
|
};
|
|
|
|
module.exports = exports["default"]; |