void Check35(CodeDomProvider provider)
{
// 如果是2.0，为了使用扩展方法，直接调用3.5编译器
if (XTrace.Debug) XTrace.WriteLine("当前环境是2.0，为了使用扩展方法等，准备调用3.5编译器");
// 先找到2.0路径，隔壁就是3.5，如果不存在，则下载并解压
var dir = System.Runtime.InteropServices.RuntimeEnvironment.GetRuntimeDirectory();
var fdir = dir.AsDirectory().Parent.FullName;
dir = fdir.CombinePath("v3.5");
var file = dir.CombinePath("csc.exe");
if (!Directory.Exists(dir) || !File.Exists(file))
{
var url = "http://www.newlifex.com/showtopic-1348.aspx";
XTrace.WriteLine(".Net 3.5未安装，准备下载绿色版 " + url);
var client = new Web.WebClientX(true, true);
try
{
var zip = client.DownloadLink(url, "csc_v3.5", dir.EnsureDirectory());
if (File.Exists(zip))
{
NewLife.Compression.ZipFile.Extract(zip, dir);
}
}
catch (Exception ex)
{
XTrace.WriteException(ex);
}
}
if (File.Exists(file))
{
Environment.SetEnvironmentVariable("COMPLUS_InstallRoot", fdir);
Environment.SetEnvironmentVariable("COMPLUS_Version", "v3.5");
//Environment.SetEnvironmentVariable("COMPLUS_Version", "v4.0.30319");
//var type = TypeX.GetType("RedistVersionInfo");
//var dic = new Dictionary<String, String>();
//dic.Add("CompilerVersion", "v3.5");
//var path = (String)type.Invoke("GetCompilerPath", dic, "");
//XTrace.WriteLine(path);
//var gen = provider.CreateGenerator();
var gen = provider.GetValue("generator") as ICodeGenerator;
var provOptions = gen.GetValue("provOptions", false) as IDictionary<string, string>;
if (provOptions != null) provOptions["CompilerVersion"] = "v3.5";
}
}