squirrelVsis/dist/utils/beautifyHelper.js

"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
exports.getSquirrelBeautifyOptions = getSquirrelBeautifyOptions;
exports.beautifyCode = beautifyCode;
exports.isSquirrelCode = isSquirrelCode;
const vscode = __importStar(require("vscode"));
// 由于 js-beautify.js 文件体积较大且复杂，我们将创建专门的存根函数
// 将使用原生的 js-beautify 功能
let _jsBeauifyInstance = null;
/**
 * 动态创建 js_beautify 函数
 */
function createJsBeautify() {
    if (_jsBeauifyInstance) {
        return _jsBeauifyInstance;
    }
    try {
        // 加载原始的 js-beautify.js 文件
        const beautifyModule = loadJsBeautify();
        _jsBeauifyInstance = beautifyModule;
        return _jsBeauifyInstance;
    }
    catch (error) {
        console.error('加载 js-beautify 失败，使用后备实现:', error);
        // 调用后备实现
        return createBasicJsBeautify();
    }
}
/**
 * 加载 js-beautify 模块
 */
function loadJsBeautify() {
    // 根据环境动态加载
    try {
        // 尝试 require 原始的 js-beautify.js 文件
        // 注意：TypeScript 会从 ./dist 目录运行，所以需要从正确的路径加载
        const beautifyPath = __dirname + '/../../js-beautify.js';
        const Module = require('module');
        const vm = require('vm');
        const fs = require('fs');
        // 读取文件内容
        const code = fs.readFileSync(beautifyPath, 'utf8');
        // 设置全局环境
        const sandbox = {
            window: {},
            global: {},
            console: console,
            String: String,
            Array: Array,
            Object: Object,
            Math: Math
        };
        // 在沙箱中执行代码
        const script = new vm.Script(code);
        const context = vm.createContext(sandbox);
        script.runInContext(context);
        // 获取 js_beautify 函数
        return context.window.js_beautify || context.js_beautify || sandbox.window.js_beautify;
    }
    catch (loadError) {
        console.error('无法加载原始 js-beautify, 错误:', loadError);
        throw loadError;
    }
}
/**
 * 基础的 js-beautify 实现（后备方案）
 */
function createBasicJsBeautify() {
    return function (code, options = {}) {
        // 默认选项
        const defaultOptions = {
            indent_size: 4,
            indent_char: ' ',
            preserve_newlines: true,
            brace_style: 'collapse',
            space_before_conditional: true,
            space_after_anon_function: false,
            wrap_line_length: 0, // 默认禁用自动换行
            end_with_newline: false
        };
        // 合并选项
        const opts = { ...defaultOptions, ...options };
        // 简化的代码美化实现
        let formatted = code;
        // 清理缩进
        formatted = formatted.replace(/[\r\n]+/g, '\n');
        const lines = formatted.split('\n');
        const result = [];
        let indentLevel = 0;
        const indentStr = opts.indent_char.repeat(opts.indent_size);
        for (const line of lines) {
            const trimmed = line.trim();
            // 跳过空行
            if (trimmed.length === 0) {
                result.push('');
                continue;
            }
            // 处理大括号
            if (trimmed.startsWith('}') || trimmed.startsWith(')') || trimmed.startsWith(']')) {
                indentLevel = Math.max(0, indentLevel - 1);
            }
            // 添加缩进
            const indentedLine = indentStr.repeat(indentLevel) + trimmed;
            result.push(indentedLine);
            // 增加缩进
            if (trimmed.endsWith('{') || trimmed.endsWith('(') || trimmed.endsWith('[')) {
                indentLevel++;
            }
            // 特殊处理 else、catch 等关键字
            if (trimmed.startsWith('else') || trimmed.startsWith('catch') || trimmed.startsWith('elif')) {
                // 检查前面一行是否以 } 结尾
                if (result.length > 1) {
                    const prevLine = result[result.length - 2];
                    const prevTrimmed = prevLine.trim();
                    if (prevTrimmed.endsWith('}')) {
                        // 移动到前一行的必要部分
                        result[result.length - 2] = indentStr.repeat(indentLevel - 1) +
                            prevTrimmed + ' ' + trimmed;
                        result.pop(); // 移除当前行
                        indentLevel--; // 修正缩进级别
                    }
                }
            }
        }
        let finalResult = result.join('\n');
        // 处理空格 - 在操作符周围添加空格
        finalResult = finalResult
            .replace(/([a-zA-Z0-9_$])([=!<>+\-*/%])([a-zA-Z0-9_$])/g, '$1 $2 $3')
            .replace(/([a-zA-Z0-9_$])(,)([a-zA-Z0-9_$])/g, '$1$2 $3')
            .replace(/\s+/g, ' ') // 将多个空格替换为单个空格
            .trim();
        return finalResult;
    };
}
// 初始化 js_beautify
const jsBeautify = {
    js_beautify: createJsBeautify()
};
/**
 * Squirrel 语言的 js-beautify 选项配置
 */
function getSquirrelBeautifyOptions(options) {
    // 从用户配置中读取换行长度设置
    const config = vscode.workspace.getConfiguration('squirrel.formatting');
    const wrapLineLength = config.get('wrapLineLength', 0);
    return {
        indent_size: options.tabSize,
        indent_char: options.insertSpaces ? ' ' : '\t',
        preserve_newlines: true,
        max_preserve_newlines: 2,
        jslint_happy: false,
        brace_style: "collapse",
        space_before_conditional: true,
        space_after_anon_function: false,
        unescape_strings: false,
        wrap_line_length: wrapLineLength,
        end_with_newline: false
    };
}
/**
 * 使用 js-beautify 格式化代码
 */
function beautifyCode(code, options) {
    if (!jsBeautify || !jsBeautify.js_beautify) {
        console.warn('js-beautify 不可用，返回原始代码');
        return code;
    }
    try {
        const beautifyOptions = getSquirrelBeautifyOptions(options);
        // 检查代码长度，处理大块代码
        const maxChunkSize = 50000; // 50KB 每块
        if (code.length > maxChunkSize) {
            // 分割代码并分块处理
            const chunks = code.split('\n');
            const resultChunks = [];
            for (const chunk of chunks) {
                const formattedChunk = jsBeautify.js_beautify(chunk, beautifyOptions);
                resultChunks.push(formattedChunk);
            }
            return resultChunks.join('\n');
        }
        // 直接格式化小代码块
        return jsBeautify.js_beautify(code, beautifyOptions);
    }
    catch (error) {
        console.error('js-beautify 格式化失败:', error);
        // 如果格式化失败，返回原始代码
        return code;
    }
}
/**
 * 检测是否为 Squirrel 代码（用于确定是否应用格式化）
 */
function isSquirrelCode(code) {
    // 简单的启发式检测 - Squirrel 特有关键字
    const squirrelKeywords = [
        'function', 'local', 'if', 'else', 'while', 'for', 'foreach',
        'class', 'constructor', 'extends', 'instanceof', 'in',
        'try', 'catch', 'throw', 'clone', 'delegate', 'resume', 'yield',
        'typeof', 'member', 'rawcall', 'call', 'setdebughook'
    ];
    // 提高检测准确性 - 需要至少匹配到1个关键字
    return squirrelKeywords.some(keyword => new RegExp(`\\b${keyword}\\b`).test(code));
}
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