我可以使用罗斯林的编译时间code重写？ [英] Can I use Roslyn for compile time code rewriting?

问题描述

例如我有

class Foo: INotifyPropertyChanged {
    public event PropertyChangedEventHandler PropertyChanged;
    public int Bar {get;set;}
}

我可以得到Foo类AST和重写酒吧，在编译时，以

Can I get the Foo class AST and rewrite Bar, in compile time, to

    public string Bar
    {
        get { return this.bar; }

        set 
        {
            if (value != this.bar)
            {
                this.phoneNumberValue = value;
                PropertyChanged(this, new PropertyChangedEventArgs("Bar"));
            }
        }
    }

推荐答案

编译时间重写不是直接由罗斯林今天支持，但语法和语义的转换肯定是。其实，看一看列入CTP看到你想要做什么东西ImplementNotifyPropertyChanged样本。样品被实现为在设计时间改造和IDE的功能，但你可以提取逻辑，使其成为类似的东西编译之前重写文件pre-生成任务。

Compile time re-writing isn't directly supported by Roslyn today, but syntactic and semantic transformations definitely are. In fact, take a look at the "ImplementNotifyPropertyChanged" sample included in the CTP to see something of what you want to do. The sample is implemented as a design time transformation in and IDE feature, but you can extract the logic and make it into something like a pre-build task that rewrites files before compilation.

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