以编程方式运行 T4 文本模板 [英] Run T4 text template programmatically

问题描述

有没有办法从代码中以编程方式运行 T4 文本模板?我正在制作自定义域特定语言，并且我希望每次用户保存时运行相关的文本模板.目前，这就是我在 DSL 模型中所做的:

Is there a way to programmatically run T4 text templates from code? I'm making a custom domain specific language and I would like the related text templates to run every time the user saves. Currently, this is what I do in the DSL model:

protected override void OnDocumentSaved(EventArgs e)
{
    IVsCommandWindow commandWindow = (IVsCommandWindow)this.ServiceProvider.GetService(typeof(IVsCommandWindow));
    if (commandWindow != null)
    {
        commandWindow.ExecuteCommand("TextTransformation.TransformAllTemplates");
    }
    base.OnDocumentSaved(e);
}

这有效，但它有一个非常烦人的副作用.如果项目有多个 DSL 文档，每个文档都有相关的文本模板，它们将全部运行，而不仅仅是受给定 DSL 文档更改影响的那些.这可能看起来没什么大不了的，但它会导致源代码控制检查所有生成的文件，如果您有很多文档，转换实际上可能需要很长时间.感谢您的帮助.

This works, but it has a really annoying side-effect. If the project has multiple DSL-documents, each with their related text templates, they will all be run, not just the ones that are affected by changes to the given DSL-document. This may not seem like such a big deal, but it causes source control to check out all the generated files, and if you have a lot of the documents, the transformation might actually take quite a while. Thanks for any help.

推荐答案

Jean-Mark Prieur 来自DSL 团队在 DSL 工具实验室的第 4 部分中解释了如何使用自定义工具执行此操作.您也可以使用 直接从 DSL 模型执行此操作ITextTemplating 服务.在此处详细了解模板转换的工作原理.

Jean-Mark Prieur from the DSL team explains how to do this with a custom tool in Part 4 of the DSL Tools Lab. You can also do this directly from the DSL model using ITextTemplating service. More on how template transformation works here.

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