diff options
Diffstat (limited to 'node_modules/core-js/internals/array-buffer.js')
| -rw-r--r-- | node_modules/core-js/internals/array-buffer.js | 226 |
1 files changed, 0 insertions, 226 deletions
diff --git a/node_modules/core-js/internals/array-buffer.js b/node_modules/core-js/internals/array-buffer.js deleted file mode 100644 index d8eb5d5..0000000 --- a/node_modules/core-js/internals/array-buffer.js +++ /dev/null @@ -1,226 +0,0 @@ -'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 -}; |
