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s.golasch
160
build/node_modules/prepack/lib/intrinsics/node/buffer.js
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160
build/node_modules/prepack/lib/intrinsics/node/buffer.js
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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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"); } }; }(); /**
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* Copyright (c) 2017-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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exports.default = function (realm) {
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var nativeBuffer = process.binding("buffer");
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var nativeBufferPrototype = require("buffer").Buffer.prototype;
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var intrinsicName = 'process.binding("buffer")';
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var obj = new _index.ObjectValue(realm, realm.intrinsics.ObjectPrototype, intrinsicName);
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// Buffer
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var setupBufferJS = new _index.NativeFunctionValue(realm, intrinsicName + ".setupBufferJS", "setupBufferJS", 0, function (setupContext, setupArgs) {
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(0, _invariant2.default)(setupArgs.length === 2);
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(0, _invariant2.default)(setupArgs[0] instanceof _index.ObjectValue);
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(0, _invariant2.default)(setupArgs[1] instanceof _index.ObjectValue);
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// TODO: Mutate the second argument by setting one of the properties to
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// Buffer prototype just like the native implementation does.
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var _setupArgs = _slicedToArray(setupArgs, 1),
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proto = _setupArgs[0];
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var simpleWrapperNames = ["asciiSlice", "base64Slice", "latin1Slice", "hexSlice", "ucs2Slice", "asciiWrite", "base64Write", "latin1Write", "hexWrite", "ucs2Write", "utf8Write"];
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var _loop = function _loop(name) {
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var wrapper = new _index.NativeFunctionValue(realm, "Buffer.prototype." + name, name, 0, function (context, args) {
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throw new _errors.FatalError("TODO: " + name);
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});
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_singletons.Properties.Set(realm, proto, name, wrapper, true);
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};
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var _iteratorNormalCompletion = true;
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var _didIteratorError = false;
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var _iteratorError = undefined;
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try {
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for (var _iterator = simpleWrapperNames[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
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var name = _step.value;
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_loop(name);
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}
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// utf8Slice is used to read source code.
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} catch (err) {
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_didIteratorError = true;
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_iteratorError = err;
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} finally {
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try {
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if (!_iteratorNormalCompletion && _iterator.return) {
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_iterator.return();
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}
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} finally {
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if (_didIteratorError) {
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throw _iteratorError;
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}
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}
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}
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var utf8Slice = new _index.NativeFunctionValue(realm, "Buffer.prototype.utf8Slice", "utf8Slice", 0, function (context, args) {
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(0, _invariant2.default)(context instanceof _index.ObjectValue);
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var self = (0, _utils.getNodeBufferFromTypedArray)(realm, context);
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var decodedArgs = args.map(function (arg, i) {
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return _singletons.To.ToInteger(realm, arg);
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});
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var utf8String = nativeBufferPrototype.utf8Slice.apply(self, decodedArgs);
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return new _index.StringValue(realm, utf8String);
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});
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_singletons.Properties.Set(realm, proto, "utf8Slice", utf8Slice, true);
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// copy has recently moved from the prototype to the instance upstream.
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var copy = new _index.NativeFunctionValue(realm, "Buffer.prototype.copy", "copy", 0, function (context, args) {
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(0, _invariant2.default)(context instanceof _index.ObjectValue);
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var self = (0, _utils.getNodeBufferFromTypedArray)(realm, context);
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var decodedArgs = args.map(function (arg, i) {
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if (i === 0) {
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(0, _invariant2.default)(arg instanceof _index.ObjectValue);
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return (0, _utils.getNodeBufferFromTypedArray)(realm, arg);
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} else {
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return _singletons.To.ToInteger(realm, arg);
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}
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});
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var bytesCopied = nativeBufferPrototype.copy.apply(self, decodedArgs);
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return new _index.NumberValue(realm, bytesCopied);
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});
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_singletons.Properties.Set(realm, proto, "copy", copy, true);
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// TODO: Set up more methods on the prototype and bindingObject
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return realm.intrinsics.undefined;
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});
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_singletons.Properties.Set(realm, obj, "setupBufferJS", setupBufferJS, true);
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var createFromString = new _index.NativeFunctionValue(realm, intrinsicName + ".createFromString", "createFromString", 0, function (context, args) {
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throw new _errors.FatalError("TODO");
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});
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_singletons.Properties.Set(realm, obj, "createFromString", createFromString, true);
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var simpleWrapperNames = ["byteLengthUtf8", "copy", "compare", "compareOffset", "fill", "indexOfBuffer", "indexOfNumber", "indexOfString", "readDoubleBE", "readDoubleLE", "readFloatBE", "readFloatLE", "writeDoubleBE", "writeDoubleLE", "writeFloatBE", "writeFloatLE", "swap16", "swap32", "swap64"];
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var _iteratorNormalCompletion2 = true;
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var _didIteratorError2 = false;
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var _iteratorError2 = undefined;
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try {
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for (var _iterator2 = simpleWrapperNames[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
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var name = _step2.value;
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var wrapper = new _index.NativeFunctionValue(realm, intrinsicName + "." + name, name, 0, function (context, args) {
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throw new _errors.FatalError("TODO");
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});
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_singletons.Properties.Set(realm, obj, name, wrapper, true);
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}
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} catch (err) {
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_didIteratorError2 = true;
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_iteratorError2 = err;
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} finally {
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try {
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if (!_iteratorNormalCompletion2 && _iterator2.return) {
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_iterator2.return();
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}
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} finally {
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if (_didIteratorError2) {
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throw _iteratorError2;
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}
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}
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}
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_singletons.Properties.Set(realm, obj, "kMaxLength", new _index.NumberValue(realm, nativeBuffer.kMaxLength), true);
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_singletons.Properties.Set(realm, obj, "kStringMaxLength", new _index.NumberValue(realm, nativeBuffer.kStringMaxLength), true);
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return obj;
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};
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var _invariant = require("../../invariant.js");
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var _invariant2 = _interopRequireDefault(_invariant);
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var _errors = require("../../errors.js");
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var _realm = require("../../realm.js");
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var _index = require("../../values/index.js");
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var _utils = require("./utils.js");
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var _singletons = require("../../singletons.js");
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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//# sourceMappingURL=buffer.js.map
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