1/* 2 * Copyright (c) 2025 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16import { int32, KPointer, nullptr } from './InteropTypes'; 17 18export function isNullPtr(value: KPointer): boolean { 19 return value === nullptr; 20} 21 22export function ptrToString(ptr: KPointer): string { 23 return `0x${ptr!.toString(16).padStart(8, '0')}`; 24} 25 26export function isSamePtr(a: KPointer, b: KPointer): boolean { 27 return a === b; 28} 29 30export function ptrToBits(ptr: KPointer): Uint32Array | null { 31 let result = new Uint32Array(2); 32 let ptrBigInt = ptr as bigint; 33 result[0] = Number(ptrBigInt & BigInt(0xffffffff)); 34 result[1] = Number((ptrBigInt >> BigInt(32)) & BigInt(0xffffffff)); 35 return result; 36} 37 38export function bitsToPtr(array: Int32Array, offset: int32): KPointer { 39 let ptrBigInt: bigint = BigInt(array[offset + 1]) & BigInt(0xffffffff); 40 ptrBigInt = (ptrBigInt << BigInt(32)) | (BigInt(array[offset]) & BigInt(0xffffffff)); 41 return ptrBigInt; 42} 43