/
types.ts
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/
types.ts
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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
//
// Adapted from Node.js. Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
import * as bindingTypes from "../../internal_binding/types.ts";
export { isCryptoKey, isKeyObject } from "../crypto/_keys.ts";
const _toString = Object.prototype.toString;
const _isObjectLike = (value: unknown): boolean =>
value !== null && typeof value === "object";
export function isArrayBufferView(value: unknown): boolean {
return ArrayBuffer.isView(value);
}
export function isBigInt64Array(value: unknown): boolean {
return (
_isObjectLike(value) && _toString.call(value) === "[object BigInt64Array]"
);
}
export function isBigUint64Array(value: unknown): boolean {
return (
_isObjectLike(value) && _toString.call(value) === "[object BigUint64Array]"
);
}
export function isFloat32Array(value: unknown): boolean {
return (
_isObjectLike(value) && _toString.call(value) === "[object Float32Array]"
);
}
export function isFloat64Array(value: unknown): boolean {
return (
_isObjectLike(value) && _toString.call(value) === "[object Float64Array]"
);
}
export function isInt8Array(value: unknown): boolean {
return _isObjectLike(value) && _toString.call(value) === "[object Int8Array]";
}
export function isInt16Array(value: unknown): boolean {
return (
_isObjectLike(value) && _toString.call(value) === "[object Int16Array]"
);
}
export function isInt32Array(value: unknown): boolean {
return (
_isObjectLike(value) && _toString.call(value) === "[object Int32Array]"
);
}
// Adapted from Lodash
export function isTypedArray(value: unknown): boolean {
/** Used to match `toStringTag` values of typed arrays. */
const reTypedTag =
/^\[object (?:Float(?:32|64)|(?:Int|Uint)(?:8|16|32)|Uint8Clamped)Array\]$/;
return _isObjectLike(value) && reTypedTag.test(_toString.call(value));
}
export function isUint8Array(value: unknown): value is Uint8Array {
return (
_isObjectLike(value) && _toString.call(value) === "[object Uint8Array]"
);
}
export function isUint8ClampedArray(value: unknown): boolean {
return (
_isObjectLike(value) &&
_toString.call(value) === "[object Uint8ClampedArray]"
);
}
export function isUint16Array(value: unknown): boolean {
return (
_isObjectLike(value) && _toString.call(value) === "[object Uint16Array]"
);
}
export function isUint32Array(value: unknown): boolean {
return (
_isObjectLike(value) && _toString.call(value) === "[object Uint32Array]"
);
}
export const {
// isExternal,
isDate,
isArgumentsObject,
isBigIntObject,
isBooleanObject,
isNumberObject,
isStringObject,
isSymbolObject,
isNativeError,
isRegExp,
isAsyncFunction,
isGeneratorFunction,
isGeneratorObject,
isPromise,
isMap,
isSet,
isMapIterator,
isSetIterator,
isWeakMap,
isWeakSet,
isArrayBuffer,
isDataView,
isSharedArrayBuffer,
// isProxy,
isModuleNamespaceObject,
isAnyArrayBuffer,
isBoxedPrimitive,
} = bindingTypes;