+++ /dev/null
-'use strict';
-var global = require('../internals/global');
-var DESCRIPTORS = require('../internals/descriptors');
-var NATIVE_ARRAY_BUFFER = require('../internals/array-buffer-native');
-var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');
-var redefineAll = require('../internals/redefine-all');
-var fails = require('../internals/fails');
-var anInstance = require('../internals/an-instance');
-var toInteger = require('../internals/to-integer');
-var toLength = require('../internals/to-length');
-var toIndex = require('../internals/to-index');
-var IEEE754 = require('../internals/ieee754');
-var getPrototypeOf = require('../internals/object-get-prototype-of');
-var setPrototypeOf = require('../internals/object-set-prototype-of');
-var getOwnPropertyNames = require('../internals/object-get-own-property-names').f;
-var defineProperty = require('../internals/object-define-property').f;
-var arrayFill = require('../internals/array-fill');
-var setToStringTag = require('../internals/set-to-string-tag');
-var InternalStateModule = require('../internals/internal-state');
-
-var getInternalState = InternalStateModule.get;
-var setInternalState = InternalStateModule.set;
-var ARRAY_BUFFER = 'ArrayBuffer';
-var DATA_VIEW = 'DataView';
-var PROTOTYPE = 'prototype';
-var WRONG_LENGTH = 'Wrong length';
-var WRONG_INDEX = 'Wrong index';
-var NativeArrayBuffer = global[ARRAY_BUFFER];
-var $ArrayBuffer = NativeArrayBuffer;
-var $DataView = global[DATA_VIEW];
-var $DataViewPrototype = $DataView && $DataView[PROTOTYPE];
-var ObjectPrototype = Object.prototype;
-var RangeError = global.RangeError;
-
-var packIEEE754 = IEEE754.pack;
-var unpackIEEE754 = IEEE754.unpack;
-
-var packInt8 = function (number) {
- return [number & 0xFF];
-};
-
-var packInt16 = function (number) {
- return [number & 0xFF, number >> 8 & 0xFF];
-};
-
-var packInt32 = function (number) {
- return [number & 0xFF, number >> 8 & 0xFF, number >> 16 & 0xFF, number >> 24 & 0xFF];
-};
-
-var unpackInt32 = function (buffer) {
- return buffer[3] << 24 | buffer[2] << 16 | buffer[1] << 8 | buffer[0];
-};
-
-var packFloat32 = function (number) {
- return packIEEE754(number, 23, 4);
-};
-
-var packFloat64 = function (number) {
- return packIEEE754(number, 52, 8);
-};
-
-var addGetter = function (Constructor, key) {
- defineProperty(Constructor[PROTOTYPE], key, { get: function () { return getInternalState(this)[key]; } });
-};
-
-var get = function (view, count, index, isLittleEndian) {
- var intIndex = toIndex(index);
- var store = getInternalState(view);
- if (intIndex + count > store.byteLength) throw RangeError(WRONG_INDEX);
- var bytes = getInternalState(store.buffer).bytes;
- var start = intIndex + store.byteOffset;
- var pack = bytes.slice(start, start + count);
- return isLittleEndian ? pack : pack.reverse();
-};
-
-var set = function (view, count, index, conversion, value, isLittleEndian) {
- var intIndex = toIndex(index);
- var store = getInternalState(view);
- if (intIndex + count > store.byteLength) throw RangeError(WRONG_INDEX);
- var bytes = getInternalState(store.buffer).bytes;
- var start = intIndex + store.byteOffset;
- var pack = conversion(+value);
- for (var i = 0; i < count; i++) bytes[start + i] = pack[isLittleEndian ? i : count - i - 1];
-};
-
-if (!NATIVE_ARRAY_BUFFER) {
- $ArrayBuffer = function ArrayBuffer(length) {
- anInstance(this, $ArrayBuffer, ARRAY_BUFFER);
- var byteLength = toIndex(length);
- setInternalState(this, {
- bytes: arrayFill.call(new Array(byteLength), 0),
- byteLength: byteLength
- });
- if (!DESCRIPTORS) this.byteLength = byteLength;
- };
-
- $DataView = function DataView(buffer, byteOffset, byteLength) {
- anInstance(this, $DataView, DATA_VIEW);
- anInstance(buffer, $ArrayBuffer, DATA_VIEW);
- var bufferLength = getInternalState(buffer).byteLength;
- var offset = toInteger(byteOffset);
- if (offset < 0 || offset > bufferLength) throw RangeError('Wrong offset');
- byteLength = byteLength === undefined ? bufferLength - offset : toLength(byteLength);
- if (offset + byteLength > bufferLength) throw RangeError(WRONG_LENGTH);
- setInternalState(this, {
- buffer: buffer,
- byteLength: byteLength,
- byteOffset: offset
- });
- if (!DESCRIPTORS) {
- this.buffer = buffer;
- this.byteLength = byteLength;
- this.byteOffset = offset;
- }
- };
-
- if (DESCRIPTORS) {
- addGetter($ArrayBuffer, 'byteLength');
- addGetter($DataView, 'buffer');
- addGetter($DataView, 'byteLength');
- addGetter($DataView, 'byteOffset');
- }
-
- redefineAll($DataView[PROTOTYPE], {
- getInt8: function getInt8(byteOffset) {
- return get(this, 1, byteOffset)[0] << 24 >> 24;
- },
- getUint8: function getUint8(byteOffset) {
- return get(this, 1, byteOffset)[0];
- },
- getInt16: function getInt16(byteOffset /* , littleEndian */) {
- var bytes = get(this, 2, byteOffset, arguments.length > 1 ? arguments[1] : undefined);
- return (bytes[1] << 8 | bytes[0]) << 16 >> 16;
- },
- getUint16: function getUint16(byteOffset /* , littleEndian */) {
- var bytes = get(this, 2, byteOffset, arguments.length > 1 ? arguments[1] : undefined);
- return bytes[1] << 8 | bytes[0];
- },
- getInt32: function getInt32(byteOffset /* , littleEndian */) {
- return unpackInt32(get(this, 4, byteOffset, arguments.length > 1 ? arguments[1] : undefined));
- },
- getUint32: function getUint32(byteOffset /* , littleEndian */) {
- return unpackInt32(get(this, 4, byteOffset, arguments.length > 1 ? arguments[1] : undefined)) >>> 0;
- },
- getFloat32: function getFloat32(byteOffset /* , littleEndian */) {
- return unpackIEEE754(get(this, 4, byteOffset, arguments.length > 1 ? arguments[1] : undefined), 23);
- },
- getFloat64: function getFloat64(byteOffset /* , littleEndian */) {
- return unpackIEEE754(get(this, 8, byteOffset, arguments.length > 1 ? arguments[1] : undefined), 52);
- },
- setInt8: function setInt8(byteOffset, value) {
- set(this, 1, byteOffset, packInt8, value);
- },
- setUint8: function setUint8(byteOffset, value) {
- set(this, 1, byteOffset, packInt8, value);
- },
- setInt16: function setInt16(byteOffset, value /* , littleEndian */) {
- set(this, 2, byteOffset, packInt16, value, arguments.length > 2 ? arguments[2] : undefined);
- },
- setUint16: function setUint16(byteOffset, value /* , littleEndian */) {
- set(this, 2, byteOffset, packInt16, value, arguments.length > 2 ? arguments[2] : undefined);
- },
- setInt32: function setInt32(byteOffset, value /* , littleEndian */) {
- set(this, 4, byteOffset, packInt32, value, arguments.length > 2 ? arguments[2] : undefined);
- },
- setUint32: function setUint32(byteOffset, value /* , littleEndian */) {
- set(this, 4, byteOffset, packInt32, value, arguments.length > 2 ? arguments[2] : undefined);
- },
- setFloat32: function setFloat32(byteOffset, value /* , littleEndian */) {
- set(this, 4, byteOffset, packFloat32, value, arguments.length > 2 ? arguments[2] : undefined);
- },
- setFloat64: function setFloat64(byteOffset, value /* , littleEndian */) {
- set(this, 8, byteOffset, packFloat64, value, arguments.length > 2 ? arguments[2] : undefined);
- }
- });
-} else {
- if (!fails(function () {
- NativeArrayBuffer(1);
- }) || !fails(function () {
- new NativeArrayBuffer(-1); // eslint-disable-line no-new
- }) || fails(function () {
- new NativeArrayBuffer(); // eslint-disable-line no-new
- new NativeArrayBuffer(1.5); // eslint-disable-line no-new
- new NativeArrayBuffer(NaN); // eslint-disable-line no-new
- return NativeArrayBuffer.name != ARRAY_BUFFER;
- })) {
- $ArrayBuffer = function ArrayBuffer(length) {
- anInstance(this, $ArrayBuffer);
- return new NativeArrayBuffer(toIndex(length));
- };
- var ArrayBufferPrototype = $ArrayBuffer[PROTOTYPE] = NativeArrayBuffer[PROTOTYPE];
- for (var keys = getOwnPropertyNames(NativeArrayBuffer), j = 0, key; keys.length > j;) {
- if (!((key = keys[j++]) in $ArrayBuffer)) {
- createNonEnumerableProperty($ArrayBuffer, key, NativeArrayBuffer[key]);
- }
- }
- ArrayBufferPrototype.constructor = $ArrayBuffer;
- }
-
- // WebKit bug - the same parent prototype for typed arrays and data view
- if (setPrototypeOf && getPrototypeOf($DataViewPrototype) !== ObjectPrototype) {
- setPrototypeOf($DataViewPrototype, ObjectPrototype);
- }
-
- // iOS Safari 7.x bug
- var testView = new $DataView(new $ArrayBuffer(2));
- var nativeSetInt8 = $DataViewPrototype.setInt8;
- testView.setInt8(0, 2147483648);
- testView.setInt8(1, 2147483649);
- if (testView.getInt8(0) || !testView.getInt8(1)) redefineAll($DataViewPrototype, {
- setInt8: function setInt8(byteOffset, value) {
- nativeSetInt8.call(this, byteOffset, value << 24 >> 24);
- },
- setUint8: function setUint8(byteOffset, value) {
- nativeSetInt8.call(this, byteOffset, value << 24 >> 24);
- }
- }, { unsafe: true });
-}
-
-setToStringTag($ArrayBuffer, ARRAY_BUFFER);
-setToStringTag($DataView, DATA_VIEW);
-
-module.exports = {
- ArrayBuffer: $ArrayBuffer,
- DataView: $DataView
-};
projects / dotfiles / .git / blobdiff