Kagami Sascha Rosylight 3ae5e79ec8 Differentiate object spread and non-spread properties (#9341)
* add isSpread field

* use argument

* t.booleanLiteral

* fix typo

* push empty-argument object

* .object

* .value

* object field should be an expression

* lint

* update outputs

* isSpread for the second argument is redundant

* add test

* alternating spread
2019-01-21 22:04:47 +01:00

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1.0 KiB
JavaScript

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { if (i % 2) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } else { Object.defineProperties(target, Object.getOwnPropertyDescriptors(arguments[i])); } } return target; }
function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
_objectSpread({
x
}, y, {
a
}, b, {
c
});
_objectSpread({}, Object.prototype);
_objectSpread({}, {
foo: 'bar'
});
_objectSpread({}, {
foo: 'bar'
}, {}, {
bar: 'baz'
});
_objectSpread({}, {
get foo() {
return 'foo';
}
});