| 120 | } |
| 121 | |
| 122 | static from(value: unknown, encoding: any = 'utf8'): BufferClass { |
| 123 | if (value && typeof value === 'object' && value['type'] === 'Buffer') { |
| 124 | return new BufferClass(value['data']) |
| 125 | } |
| 126 | |
| 127 | if (typeof value === 'number') { |
| 128 | return new BufferClass(new Uint8Array(value)) |
| 129 | } |
| 130 | |
| 131 | if (typeof value === 'string') { |
| 132 | return stringToBuffer(value, encoding) |
| 133 | } |
| 134 | |
| 135 | if (ArrayBuffer.isView(value)) { |
| 136 | const { byteOffset, byteLength, buffer } = value |
| 137 | |
| 138 | if ('map' in value && typeof value.map === 'function') { |
| 139 | return new BufferClass( |
| 140 | value.map((v) => v % 256), |
| 141 | byteOffset, |
| 142 | byteLength, |
| 143 | ) |
| 144 | } |
| 145 | |
| 146 | return new BufferClass(buffer, byteOffset, byteLength) |
| 147 | } |
| 148 | |
| 149 | if (value && typeof value === 'object' && ('length' in value || 'byteLength' in value || 'buffer' in value)) { |
| 150 | return new BufferClass(value as ArrayLike<number>) |
| 151 | } |
| 152 | |
| 153 | throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.') |
| 154 | } |
| 155 | |
| 156 | static concat(list: readonly Uint8Array[], totalLength?: number) { |
| 157 | if (list.length === 0) return BufferClass.alloc(0) |