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node_modules/core-js/internals/array-buffer-view-core.js

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+'use strict';
+var NATIVE_ARRAY_BUFFER = require('../internals/array-buffer-basic-detection');
+var DESCRIPTORS = require('../internals/descriptors');
+var global = require('../internals/global');
+var isCallable = require('../internals/is-callable');
+var isObject = require('../internals/is-object');
+var hasOwn = require('../internals/has-own-property');
+var classof = require('../internals/classof');
+var tryToString = require('../internals/try-to-string');
+var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');
+var defineBuiltIn = require('../internals/define-built-in');
+var defineBuiltInAccessor = require('../internals/define-built-in-accessor');
+var isPrototypeOf = require('../internals/object-is-prototype-of');
+var getPrototypeOf = require('../internals/object-get-prototype-of');
+var setPrototypeOf = require('../internals/object-set-prototype-of');
+var wellKnownSymbol = require('../internals/well-known-symbol');
+var uid = require('../internals/uid');
+var InternalStateModule = require('../internals/internal-state');
+
+var enforceInternalState = InternalStateModule.enforce;
+var getInternalState = InternalStateModule.get;
+var Int8Array = global.Int8Array;
+var Int8ArrayPrototype = Int8Array && Int8Array.prototype;
+var Uint8ClampedArray = global.Uint8ClampedArray;
+var Uint8ClampedArrayPrototype = Uint8ClampedArray && Uint8ClampedArray.prototype;
+var TypedArray = Int8Array && getPrototypeOf(Int8Array);
+var TypedArrayPrototype = Int8ArrayPrototype && getPrototypeOf(Int8ArrayPrototype);
+var ObjectPrototype = Object.prototype;
+var TypeError = global.TypeError;
+
+var TO_STRING_TAG = wellKnownSymbol('toStringTag');
+var TYPED_ARRAY_TAG = uid('TYPED_ARRAY_TAG');
+var TYPED_ARRAY_CONSTRUCTOR = 'TypedArrayConstructor';
+// Fixing native typed arrays in Opera Presto crashes the browser, see #595
+var NATIVE_ARRAY_BUFFER_VIEWS = NATIVE_ARRAY_BUFFER && !!setPrototypeOf && classof(global.opera) !== 'Opera';
+var TYPED_ARRAY_TAG_REQUIRED = false;
+var NAME, Constructor, Prototype;
+
+var TypedArrayConstructorsList = {
+  Int8Array: 1,
+  Uint8Array: 1,
+  Uint8ClampedArray: 1,
+  Int16Array: 2,
+  Uint16Array: 2,
+  Int32Array: 4,
+  Uint32Array: 4,
+  Float32Array: 4,
+  Float64Array: 8
+};
+
+var BigIntArrayConstructorsList = {
+  BigInt64Array: 8,
+  BigUint64Array: 8
+};
+
+var isView = function isView(it) {
+  if (!isObject(it)) return false;
+  var klass = classof(it);
+  return klass === 'DataView'
+    || hasOwn(TypedArrayConstructorsList, klass)
+    || hasOwn(BigIntArrayConstructorsList, klass);
+};
+
+var getTypedArrayConstructor = function (it) {
+  var proto = getPrototypeOf(it);
+  if (!isObject(proto)) return;
+  var state = getInternalState(proto);
+  return (state && hasOwn(state, TYPED_ARRAY_CONSTRUCTOR)) ? state[TYPED_ARRAY_CONSTRUCTOR] : getTypedArrayConstructor(proto);
+};
+
+var isTypedArray = function (it) {
+  if (!isObject(it)) return false;
+  var klass = classof(it);
+  return hasOwn(TypedArrayConstructorsList, klass)
+    || hasOwn(BigIntArrayConstructorsList, klass);
+};
+
+var aTypedArray = function (it) {
+  if (isTypedArray(it)) return it;
+  throw TypeError('Target is not a typed array');
+};
+
+var aTypedArrayConstructor = function (C) {
+  if (isCallable(C) && (!setPrototypeOf || isPrototypeOf(TypedArray, C))) return C;
+  throw TypeError(tryToString(C) + ' is not a typed array constructor');
+};
+
+var exportTypedArrayMethod = function (KEY, property, forced, options) {
+  if (!DESCRIPTORS) return;
+  if (forced) for (var ARRAY in TypedArrayConstructorsList) {
+    var TypedArrayConstructor = global[ARRAY];
+    if (TypedArrayConstructor && hasOwn(TypedArrayConstructor.prototype, KEY)) try {
+      delete TypedArrayConstructor.prototype[KEY];
+    } catch (error) {
+      // old WebKit bug - some methods are non-configurable
+      try {
+        TypedArrayConstructor.prototype[KEY] = property;
+      } catch (error2) { /* empty */ }
+    }
+  }
+  if (!TypedArrayPrototype[KEY] || forced) {
+    defineBuiltIn(TypedArrayPrototype, KEY, forced ? property
+      : NATIVE_ARRAY_BUFFER_VIEWS && Int8ArrayPrototype[KEY] || property, options);
+  }
+};
+
+var exportTypedArrayStaticMethod = function (KEY, property, forced) {
+  var ARRAY, TypedArrayConstructor;
+  if (!DESCRIPTORS) return;
+  if (setPrototypeOf) {
+    if (forced) for (ARRAY in TypedArrayConstructorsList) {
+      TypedArrayConstructor = global[ARRAY];
+      if (TypedArrayConstructor && hasOwn(TypedArrayConstructor, KEY)) try {
+        delete TypedArrayConstructor[KEY];
+      } catch (error) { /* empty */ }
+    }
+    if (!TypedArray[KEY] || forced) {
+      // V8 ~ Chrome 49-50 `%TypedArray%` methods are non-writable non-configurable
+      try {
+        return defineBuiltIn(TypedArray, KEY, forced ? property : NATIVE_ARRAY_BUFFER_VIEWS && TypedArray[KEY] || property);
+      } catch (error) { /* empty */ }
+    } else return;
+  }
+  for (ARRAY in TypedArrayConstructorsList) {
+    TypedArrayConstructor = global[ARRAY];
+    if (TypedArrayConstructor && (!TypedArrayConstructor[KEY] || forced)) {
+      defineBuiltIn(TypedArrayConstructor, KEY, property);
+    }
+  }
+};
+
+for (NAME in TypedArrayConstructorsList) {
+  Constructor = global[NAME];
+  Prototype = Constructor && Constructor.prototype;
+  if (Prototype) enforceInternalState(Prototype)[TYPED_ARRAY_CONSTRUCTOR] = Constructor;
+  else NATIVE_ARRAY_BUFFER_VIEWS = false;
+}
+
+for (NAME in BigIntArrayConstructorsList) {
+  Constructor = global[NAME];
+  Prototype = Constructor && Constructor.prototype;
+  if (Prototype) enforceInternalState(Prototype)[TYPED_ARRAY_CONSTRUCTOR] = Constructor;
+}
+
+// WebKit bug - typed arrays constructors prototype is Object.prototype
+if (!NATIVE_ARRAY_BUFFER_VIEWS || !isCallable(TypedArray) || TypedArray === Function.prototype) {
+  // eslint-disable-next-line no-shadow -- safe
+  TypedArray = function TypedArray() {
+    throw TypeError('Incorrect invocation');
+  };
+  if (NATIVE_ARRAY_BUFFER_VIEWS) for (NAME in TypedArrayConstructorsList) {
+    if (global[NAME]) setPrototypeOf(global[NAME], TypedArray);
+  }
+}
+
+if (!NATIVE_ARRAY_BUFFER_VIEWS || !TypedArrayPrototype || TypedArrayPrototype === ObjectPrototype) {
+  TypedArrayPrototype = TypedArray.prototype;
+  if (NATIVE_ARRAY_BUFFER_VIEWS) for (NAME in TypedArrayConstructorsList) {
+    if (global[NAME]) setPrototypeOf(global[NAME].prototype, TypedArrayPrototype);
+  }
+}
+
+// WebKit bug - one more object in Uint8ClampedArray prototype chain
+if (NATIVE_ARRAY_BUFFER_VIEWS && getPrototypeOf(Uint8ClampedArrayPrototype) !== TypedArrayPrototype) {
+  setPrototypeOf(Uint8ClampedArrayPrototype, TypedArrayPrototype);
+}
+
+if (DESCRIPTORS && !hasOwn(TypedArrayPrototype, TO_STRING_TAG)) {
+  TYPED_ARRAY_TAG_REQUIRED = true;
+  defineBuiltInAccessor(TypedArrayPrototype, TO_STRING_TAG, {
+    configurable: true,
+    get: function () {
+      return isObject(this) ? this[TYPED_ARRAY_TAG] : undefined;
+    }
+  });
+  for (NAME in TypedArrayConstructorsList) if (global[NAME]) {
+    createNonEnumerableProperty(global[NAME], TYPED_ARRAY_TAG, NAME);
+  }
+}
+
+module.exports = {
+  NATIVE_ARRAY_BUFFER_VIEWS: NATIVE_ARRAY_BUFFER_VIEWS,
+  TYPED_ARRAY_TAG: TYPED_ARRAY_TAG_REQUIRED && TYPED_ARRAY_TAG,
+  aTypedArray: aTypedArray,
+  aTypedArrayConstructor: aTypedArrayConstructor,
+  exportTypedArrayMethod: exportTypedArrayMethod,
+  exportTypedArrayStaticMethod: exportTypedArrayStaticMethod,
+  getTypedArrayConstructor: getTypedArrayConstructor,
+  isView: isView,
+  isTypedArray: isTypedArray,
+  TypedArray: TypedArray,
+  TypedArrayPrototype: TypedArrayPrototype
+};