虽然我不能为您提供完整的转译器/编译器选项，因为这将是大量工作，但我可以建议以下内容来协助智能感知支持和函数和调用的发出。
这是基础设施代码。您需要完成 getArgumentLiteral 和 getConstantFromArgument 函数来处理您提出的其他情况，但这是一个不错的起点。
public abstract class JavascriptFunction<TFunction, TDelegate> where TFunction : JavascriptFunction<TFunction, TDelegate>, new()
{
private static TFunction instance = new TFunction();
private static string name = typeof(TFunction).Name;
private string functionBody;
protected JavascriptFunction(string functionBody) { this.functionBody = functionBody; }
public static string Call(Expression<Action<TDelegate>> func)
{
return instance.EmitFunctionCall(func);
}
public static string EmitFunction()
{
return "function " + name + "(" + extractParameterNames() + ")\r\n{\r\n " + instance.functionBody.Replace("\n", "\n ") + "\r\n}\r\n";
}
private string EmitFunctionCall(Expression<Action<TDelegate>> func)
{
return name + "(" + this.extractArgumentValues(((InvocationExpression) func.Body).Arguments) + ");";
}
private string extractArgumentValues(System.Collections.ObjectModel.ReadOnlyCollection<Expression> arguments)
{
System.Text.StringBuilder returnString = new System.Text.StringBuilder();
string commaOrBlank = "";
foreach(var argument in arguments)
{
returnString.Append(commaOrBlank + this.getArgumentLiteral(argument));
commaOrBlank = ", ";
}
return returnString.ToString();
}
private string getArgumentLiteral(Expression argument)
{
if (argument.NodeType == ExpressionType.Constant) return this.getConstantFromArgument((ConstantExpression) argument);
else return argument.ToString();
}
private string getConstantFromArgument(ConstantExpression constantExpression)
{
if (constantExpression.Type == typeof(String)) return "'" + constantExpression.Value.ToString().Replace("'", "\\'") + "'";
if (constantExpression.Type == typeof(Boolean)) return constantExpression.Value.ToString().ToLower();
return constantExpression.Value.ToString();
}
private static string extractParameterNames()
{
System.Text.StringBuilder returnString = new System.Text.StringBuilder();
string commaOrBlank = "";
MethodInfo method = typeof(TDelegate).GetMethod("Invoke");
foreach (ParameterInfo param in method.GetParameters())
{
returnString.Append(commaOrBlank + param.Name);
commaOrBlank = ", ";
}
return returnString.ToString();
}
}
public abstract class CoreJSFunction<TFunction, TDelegate> : JavascriptFunction<TFunction, TDelegate>
where TFunction : CoreJSFunction<TFunction, TDelegate>, new()
{
protected CoreJSFunction() : base(null) {}
}
以下是标准函数支持包装器的示例：
public class alert : CoreJSFunction<alert, alert.signature>
{
public delegate void signature(string message);
}
以下是几个示例 Javascript 函数支持包装器：
public class hello : JavascriptFunction<hello, hello.signature>
{
public delegate void signature(string world, bool goodByeToo);
public hello() : base(@"return 'Hello ' + world + (goodByeToo ? '. And good bye too!' : ''") {}
}
public class bye : JavascriptFunction<bye, bye.signature>
{
public delegate void signature(string friends, bool bestOfLuck);
public bye() : base(@"return 'Bye ' + friends + (bestOfLuck ? '. And best of luck!' : ''") {}
}
这是一个控制台应用程序，展示了它的用法：
public class TestJavascriptFunctions
{
static void Main()
{
// TODO: Get javascript functions to emit to the client side somehow instead of writing them to the console
Console.WriteLine(hello.EmitFunction() + bye.EmitFunction());
// TODO: output calls to javascript function to the client side somehow instead of writing them to the console
Console.WriteLine(hello.Call(func=>func("Earth", false)));
Console.WriteLine(bye.Call(func=>func("Jane and John", true)));
Console.WriteLine(alert.Call(func=>func("Hello World!")));
Console.ReadKey();
}
}
这是控制台应用程序的输出：
function hello(world, goodByeToo)
{
return 'Hello ' + world + (goodByeToo ? '. And good bye too!' : ''
}
function bye(friends, bestOfLuck)
{
return 'Bye ' + friends + (bestOfLuck ? '. And best of luck!' : ''
}
hello('Earth', false);
bye('Jane and John', true);
alert('Hello World!');
更新：
您可能还想查看JSIL。我不隶属于该项目，无法谈论它的稳定性、准确性和有效性，但它听起来很有趣，也许可以帮助你。
