@loom-io/in-memory-adapter/dist/core/file-handler.js

A file system wrapper for Node.js and Bun

export class FileHandler {
    file;
    mode;
    constructor(file, mode = 'r') {
        this.file = file;
        this.mode = mode;
    }
    async read(bufferOrOptions, _options = {}) {
        const [buffer, options] = bufferOrOptions instanceof Buffer ? [bufferOrOptions, _options] : [Buffer.alloc(16384), bufferOrOptions];
        const { offset = 0, length = buffer.length - offset, position = 0 } = options;
        const { content } = this.file;
        const slice = content.subarray(position, position + length);
        slice.copy(buffer, offset);
        return { buffer, bytesRead: slice.length };
    }
    close() {
    }
}