extend std/util/node types

pevers · Jun 7, 2020 · b50426f · b50426f
1 parent 09ee9a8
commit b50426f
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Showing 2 changed files with 668 additions and 16 deletions.
diff --git a/std/node/_util/_util_types.ts b/std/node/_util/_util_types.ts
@@ -26,6 +26,207 @@ const _toString = Object.prototype.toString;
 const _isObjectLike = (value: unknown): boolean =>
   value !== null && typeof value === "object";
 
+const _isFunctionLike = (value: unknown): boolean =>
+  value !== null && typeof value === "function";
+
+export function isAnyArrayBuffer(value: unknown): boolean {
+  return (
+    _isObjectLike(value) &&
+    (_toString.call(value) === "[object ArrayBuffer]" ||
+      _toString.call(value) === "[object SharedArrayBuffer]")
+  );
+}
+
+export function isArrayBufferView(value: unknown): boolean {
+  return ArrayBuffer.isView(value);
+}
+
+export function isArgumentsObject(value: unknown): boolean {
+  return _isObjectLike(value) && _toString.call(value) === "[object Arguments]";
+}
+
+export function isArrayBuffer(value: unknown): boolean {
+  return (
+    _isObjectLike(value) && _toString.call(value) === "[object ArrayBuffer]"
+  );
+}
+
+export function isAsyncFunction(value: unknown): boolean {
+  return (
+    _isFunctionLike(value) && _toString.call(value) === "[object AsyncFunction]"
+  );
+}
+
+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 isBooleanObject(value: unknown): boolean {
+  return _isObjectLike(value) && _toString.call(value) === "[object Boolean]";
+}
+
+export function isBoxedPrimitive(value: unknown): boolean {
+  return (
+    isBooleanObject(value) ||
+    isStringObject(value) ||
+    isNumberObject(value) ||
+    isSymbolObject(value) ||
+    isBigIntObject(value)
+  );
+}
+
+export function isDataView(value: unknown): boolean {
+  return _isObjectLike(value) && _toString.call(value) === "[object DataView]";
+}
+
 export function isDate(value: unknown): boolean {
   return _isObjectLike(value) && _toString.call(value) === "[object Date]";
 }
+
+// isExternal: Not implemented
+
+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 isGeneratorFunction(value: unknown): boolean {
+  return (
+    _isFunctionLike(value) &&
+    _toString.call(value) === "[object GeneratorFunction]"
+  );
+}
+
+export function isGeneratorObject(value: unknown): boolean {
+  return _isObjectLike(value) && _toString.call(value) === "[object Generator]";
+}
+
+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]"
+  );
+}
+
+export function isMap(value: unknown): boolean {
+  return _isObjectLike(value) && _toString.call(value) === "[object Map]";
+}
+
+export function isMapIterator(value: unknown): boolean {
+  return (
+    _isObjectLike(value) && _toString.call(value) === "[object Map Iterator]"
+  );
+}
+
+export function isModuleNamespaceObject(value: unknown): boolean {
+  return _isObjectLike(value) && _toString.call(value) === "[object Module]";
+}
+
+export function isNativeError(value: unknown): boolean {
+  return _isObjectLike(value) && _toString.call(value) === "[object Error]";
+}
+
+export function isNumberObject(value: unknown): boolean {
+  return _isObjectLike(value) && _toString.call(value) === "[object Number]";
+}
+
+export function isBigIntObject(value: unknown): boolean {
+  return _isObjectLike(value) && _toString.call(value) === "[object BigInt]";
+}
+
+export function isPromise(value: unknown): boolean {
+  return _isObjectLike(value) && _toString.call(value) === "[object Promise]";
+}
+
+export function isRegExp(value: unknown): boolean {
+  return _isObjectLike(value) && _toString.call(value) === "[object RegExp]";
+}
+
+export function isSet(value: unknown): boolean {
+  return _isObjectLike(value) && _toString.call(value) === "[object Set]";
+}
+
+export function isSetIterator(value: unknown): boolean {
+  return (
+    _isObjectLike(value) && _toString.call(value) === "[object Set Iterator]"
+  );
+}
+
+export function isSharedArrayBuffer(value: unknown): boolean {
+  return (
+    _isObjectLike(value) &&
+    _toString.call(value) === "[object SharedArrayBuffer]"
+  );
+}
+
+export function isStringObject(value: unknown): boolean {
+  return _isObjectLike(value) && _toString.call(value) === "[object String]";
+}
+
+export function isSymbolObject(value: unknown): boolean {
+  return _isObjectLike(value) && _toString.call(value) === "[object Symbol]";
+}
+
+// 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): boolean {
+  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 function isWeakMap(value: unknown): boolean {
+  return _isObjectLike(value) && _toString.call(value) === "[object WeakMap]";
+}
+
+export function isWeakSet(value: unknown): boolean {
+  return _isObjectLike(value) && _toString.call(value) === "[object WeakSet]";
+}