boda_jsEnv/env_xbb_lastest_jsdom/tools/tuodom.js

// 获取原型环境代码
getProtoEnvCode = function getProtoEnvCode(proto, instanceObj){
    // proto: 原型函数
    // instanceObj: 实例对象, 可选参数
    let code = "";
    let protoName = proto.name;
    // 添加注释
    code += `// ${protoName}对象\r\n`;
    // 定义原型
    code += `${protoName} = function ${protoName}(){`;
    try{
        new proto;
    }catch(e){
        code += `return bodavm.toolsFunc.throwError("${e.name}", "${e.message}")`;
    }
    code += `}\r\n`;
    // 保护原型
    code += `bodavm.toolsFunc.safeProto(${protoName}, "${protoName}");\r\n`;
    // 设置原型链
    let protoObj = proto.prototype;
    let proto_protoName = Object.getPrototypeOf(protoObj)[Symbol.toStringTag];
    if(proto_protoName !== undefined){
        code += `${protoName}.prototype.__proto__=${proto_protoName}.prototype;\r\n`;
       
    }
    if(proto.__proto__.name){
         code += `${protoName}.__proto__=${proto_protoName};\r\n`;
    }
    
    // 设置原型的属性
    for(const key in Object.getOwnPropertyDescriptors(proto)){
        if(key === "arguments" || key === "caller" || key === "length" || key === "name" || key === "prototype"){
            continue;
        }
        let descriptor = getDescriptor(proto, key, protoName, protoName, instanceObj);
        code += `bodavm.toolsFunc.defineProperty(${protoName}, "${key}", ${descriptor});\r\n`;
    }
    // 设置原型对象的属性
    for(const key in Object.getOwnPropertyDescriptors(proto.prototype)){
        if(key === "constructor"){
            continue;
        }
        let descriptor = getDescriptor(proto.prototype, key, `${protoName}.prototype`, protoName, instanceObj);
        code += `bodavm.toolsFunc.defineProperty(${protoName}.prototype, "${key}", ${descriptor});\r\n`;
    }
    console.log(code);
    copy(code);
    // return code;
}
// 获取实例对象的环境代码
getObjEnvCode = function getObjEnvCode(obj, objName, instanceObj){
    let code = "";
    // 添加注释
    code += `// ${objName}对象\r\n`;
    // 定义对象
    code += `${objName} = {}\r\n`;
    // 设置原型
    let protoName = Object.getPrototypeOf(obj)[Symbol.toStringTag];
    if(protoName !== undefined){
        code += `${objName}.__proto__=${protoName}.prototype;\r\n`;
    }
    for(const key in Object.getOwnPropertyDescriptors(obj)){
        let descriptor = getDescriptor(obj, key, objName, objName, instanceObj);
        code += `bodavm.toolsFunc.defineProperty(${objName}, "${key}", ${descriptor});\r\n`;
    }
    console.log(code);
    copy(code);
}

// 获取属性描述符
getDescriptor = function getDescriptor(obj, prop, objName, protoName, instanceObj){
    let descriptor = Object.getOwnPropertyDescriptor(obj, prop);
    let configurable = descriptor.configurable;
    let enumerable = descriptor.enumerable;
    let code = `{configurable:${configurable}, enumerable:${enumerable}, `;
    if(descriptor.hasOwnProperty("writable")){
        let writable = descriptor.writable;
        code += `writable:${writable}, `;
    }
    if(descriptor.hasOwnProperty("value")){
        let value = descriptor.value;
        if(value instanceof Object){
            if(typeof value === "function"){
                code += `value:function ${prop} (){return bodavm.toolsFunc.dispatch(this, ${objName}, "${protoName}", "${prop}", arguments)}`;
            }else{
                // 需要关注
                console.log("需要额外关注", value);
                // JSON.stringify(value);
                code += `value:{}`
            }
        }else if(typeof value === 'symbol'){
            code += `value:${value.toString()}`;
        }else if(typeof value === "string"){
            code += `value:"${value}"`;
        }else{
            code += `value:${value}`;
        }
    }
    if(descriptor.hasOwnProperty("get")){
        let get = descriptor.get;
        if(typeof get === "function"){
            let defaultValue;
            try{
                defaultValue = get.call(instanceObj);
            }catch(e){}
            if(defaultValue === undefined || defaultValue instanceof Object){
                code += `get:function ${prop} (){return bodavm.toolsFunc.dispatch(this, ${objName}, "${protoName}", "${prop}_get", arguments)}, `;
            }else{
                if(typeof defaultValue === "string"){
                    code += `get:function ${prop} (){return bodavm.toolsFunc.dispatch(this, ${objName}, "${protoName}", "${prop}_get", arguments, '${defaultValue}')}, `;
                }else if(typeof value === 'symbol'){
                    code += `get:function ${prop} (){return bodavm.toolsFunc.dispatch(this, ${objName}, "${protoName}", "${prop}_get", arguments, ${defaultValue.toString()})}, `;
                }else{
                    code += `get:function ${prop} (){return bodavm.toolsFunc.dispatch(this, ${objName}, "${protoName}", "${prop}_get", arguments, ${defaultValue})}, `;
                }
            }
        }else{
            code += `get:undefined, `
        }
    }
    if(descriptor.hasOwnProperty("set")){
        let set = descriptor.set;
        if(typeof set === "function"){
            code += `set:function ${prop} (){return bodavm.toolsFunc.dispatch(this, ${objName}, "${protoName}", "${prop}_set", arguments)}`;
        }else{
            code += `set:undefined`
        }
    }
    code += '}';
    return code;
}
code1=getProtoEnvCode(PerformancePaintTiming  ,PerformancePaintTiming  )
// code2=getObjEnvCode(navigator,'navigator' )
// copy(code2)
// if (code1){
// code3=code1+"\r\n"+code2
// copy(code3)
    
// }else{
//     copy(code2)
// }