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