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s.golasch
2023-08-01 13:49:46 +02:00
commit 1fc239fd54
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build/node_modules/prepack/lib/intrinsics/ecma262/DataView.js generated vendored Normal file
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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }(); /**
* Copyright (c) 2017-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
exports.default = function (realm) {
// ECMA262 24.2.2.1
var func = new _index2.NativeFunctionValue(realm, "DataView", "DataView", 3, function (context, _ref, argCount, NewTarget) {
var _ref2 = _slicedToArray(_ref, 3),
buffer = _ref2[0],
byteOffset = _ref2[1],
byteLength = _ref2[2];
// 1. If NewTarget is undefined, throw a TypeError exception.
if (!NewTarget) {
throw realm.createErrorThrowCompletion(realm.intrinsics.TypeError);
}
buffer = buffer.throwIfNotConcrete();
// 2. If Type(buffer) is not Object, throw a TypeError exception.
if (!(buffer instanceof _index2.ObjectValue)) {
throw realm.createErrorThrowCompletion(realm.intrinsics.TypeError);
}
// 3. If buffer does not have an [[ArrayBufferData]] internal slot, throw a TypeError exception.
if (!("$ArrayBufferData" in buffer)) {
throw realm.createErrorThrowCompletion(realm.intrinsics.TypeError);
}
// 4. Let offset be ? ToIndex(byteOffset).
var offset = _singletons.To.ToIndexPartial(realm, byteOffset);
// 5. If IsDetachedBuffer(buffer) is true, throw a TypeError exception.
if ((0, _index.IsDetachedBuffer)(realm, buffer)) {
throw realm.createErrorThrowCompletion(realm.intrinsics.TypeError);
}
// 6. Let bufferByteLength be the value of buffer's [[ArrayBufferByteLength]] internal slot.
var bufferByteLength = buffer.$ArrayBufferByteLength;
(0, _invariant2.default)(typeof bufferByteLength === "number");
// 7. If offset > bufferByteLength, throw a RangeError exception.
if (offset > bufferByteLength) {
throw realm.createErrorThrowCompletion(realm.intrinsics.RangeError);
}
// 8. If byteLength is undefined, then
var viewByteLength = void 0;
if (!byteLength || byteLength instanceof _index2.UndefinedValue) {
// a. Let viewByteLength be bufferByteLength - offset.
viewByteLength = bufferByteLength - offset;
} else {
// 9. Else,
// a. Let viewByteLength be ? ToIndex(byteLength).
viewByteLength = _singletons.To.ToIndexPartial(realm, byteLength);
// b. If offset+viewByteLength > bufferByteLength, throw a RangeError exception.
if (offset + viewByteLength > bufferByteLength) {
throw realm.createErrorThrowCompletion(realm.intrinsics.RangeError);
}
}
// 10. Let O be ? OrdinaryCreateFromConstructor(NewTarget, "%DataViewPrototype%", « [[DataView]], [[ViewedArrayBuffer]], [[ByteLength]], [[ByteOffset]] »).
var O = _singletons.Create.OrdinaryCreateFromConstructor(realm, NewTarget, "DataViewPrototype", {
$DataView: undefined,
$ViewedArrayBuffer: undefined,
$ByteLength: undefined,
$ByteOffset: undefined
});
// 11. Set O's [[DataView]] internal slot to true.
O.$DataView = true;
// 12. Set O's [[ViewedArrayBuffer]] internal slot to buffer.
O.$ViewedArrayBuffer = buffer;
// 13. Set O's [[ByteLength]] internal slot to viewByteLength.
O.$ByteLength = viewByteLength;
// 14. Set O's [[ByteOffset]] internal slot to offset.
O.$ByteOffset = offset;
// 15. Return O.
return O;
});
return func;
};
var _index = require("../../methods/index.js");
var _index2 = require("../../values/index.js");
var _singletons = require("../../singletons.js");
var _invariant = require("../../invariant.js");
var _invariant2 = _interopRequireDefault(_invariant);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
//# sourceMappingURL=DataView.js.map