感谢关于此问题的第一篇帖子的消息。我会做一个转贴,并试着这次更清楚。我想这可能是一个微不足道的问题,但我真的很困难,需要一些帮助。这是我第一次在这里发帖。
using System;
using System.CodeDom.Compiler;
using System.Reflection;
using Microsoft.CSharp;
namespace DynamicCode
{
public class DynaCore
{
string WorkingCode =
"using System;"+
"using System.Collections.Generic;"+
"namespace DynaCore"+
"{"+
" public class DynaCore"+
" {"+
" static public string DynamicResult()"+
" {"+
" return \"I'm compiled\";"+
" }"+
" }"+
"}";
string PredicateTemplCode =
"using System;"+
"using System.Linq;"+
"using System.Collections.Generic;"+
"namespace DynaCore"+
"{"+
" public class DynaCore"+
" {"+
" static public Func<{1}, bool> DynamicResult()"+
" {"+
" return new Func<{1}, bool>({2});"+
" }"+
" }"+
"}";
public DynaCore()
{
string compiledString = WorkingCompilation(WorkingCode);
Func<bool, bool> compiladePredicate = NotWorkingCompilation<bool>(PredicateTemplCode, "(o)=> true");
}
string WorkingCompilation(string code)
{
var cParams = new CompilerParameters();
cParams.GenerateInMemory = true;
cParams.TreatWarningsAsErrors = false;
cParams.GenerateExecutable = false;
cParams.CompilerOptions = "/optimize /target:library";
var curAss = Assembly.GetExecutingAssembly();
cParams.ReferencedAssemblies.Add("System.dll");
cParams.ReferencedAssemblies.Add("mscorlib.dll");
cParams.ReferencedAssemblies.Add("System.dll");
cParams.ReferencedAssemblies.Add("System.Data.dll");
cParams.ReferencedAssemblies.Add(curAss.Location);
var provider = new CSharpCodeProvider();
var compalerResult = provider.CompileAssemblyFromSource(cParams, code);
if (compalerResult.Errors.HasErrors)
{
var complieError = "";
foreach (CompilerError ce in compalerResult.Errors)
complieError += ce + " ";
throw new Exception(complieError.Trim());
}
Module module = compalerResult.CompiledAssembly.GetModules()[0];
Type mt = null;
MethodInfo methInfo = null;
return (string)module.GetType("DynaCore.DynaCore").GetMethod("DynamicResult").Invoke(null, null);
}
Func<T, bool> NotWorkingCompilation<T>(string code, string predicateString)
{
var cParams = new CompilerParameters();
cParams.GenerateInMemory = true;
cParams.TreatWarningsAsErrors = false;
cParams.GenerateExecutable = false;
cParams.CompilerOptions = "/optimize /target:library";
var curAss = Assembly.GetExecutingAssembly();
cParams.ReferencedAssemblies.Add("System.dll");
cParams.ReferencedAssemblies.Add("mscorlib.dll");
cParams.ReferencedAssemblies.Add("System.dll");
cParams.ReferencedAssemblies.Add("System.Data.dll");
cParams.ReferencedAssemblies.Add("System.Core.dll");
cParams.ReferencedAssemblies.Add(curAss.Location);
var provider = new CSharpCodeProvider();
var codeToRun = code.Replace("{1}", typeof(T).Name).Replace("{2}", predicateString);
var compalerResult = provider.CompileAssemblyFromSource(cParams, codeToRun);
if (compalerResult.Errors.HasErrors)
{
var complieError = "";
foreach (CompilerError ce in compalerResult.Errors)
complieError += ce + " ";
throw new Exception(complieError.Trim());
}
Module module = compalerResult.CompiledAssembly.GetModules()[0];
Type mt = null;
MethodInfo methInfo = null;
return (Func<T, bool>)module.GetType("DynaCore.DynaCore").GetMethod("DynamicResult").Invoke(null, null);
}
}
}
问题是当我在 ReferencedAssemblies.Add(“System.Core.dll”)中引用 System.Core.dll 时,它会给我一个编译错误:
错误CS0006:找不到元数据文件'System.Core.dll'
我正在使用v3.5和VS 2008.
答案 0 :(得分:10)
感谢所有答案!
事实证明,CSharpCodeProvider默认为2.0版,不支持泛型或linq。以下解决了问题:
var provider = new CSharpCodeProvider(
new Dictionary<String, String>{{ "CompilerVersion","v3.5" }});
答案 1 :(得分:6)
我以为我会更新这个帖子,因为它从来没有得到正确回答。我刚刚遇到了同样的问题(CS0006),不得不包含一个WPF目录中的WPF库,最后用以下内容修复它:
string ver = string.Format("{0}.{1}.{2}", Environment.Version.Major, Environment.Version.MajorRevision, Environment.Version.Build);
string exWpfDir = string.Format(@"C:\WINDOWS\Microsoft.NET\Framework\v{0}\WPF", ver);
string exDir = string.Format(@"C:\WINDOWS\Microsoft.NET\Framework\v{0}", ver);
CSharpCodeProvider provider = new CSharpCodeProvider();
ICodeCompiler compiler = provider.CreateCompiler();
CompilerParameters compilerparams = new CompilerParameters();
compilerparams.GenerateExecutable = false;
compilerparams.GenerateInMemory = true;
compilerparams.IncludeDebugInformation = false;
compilerparams.TreatWarningsAsErrors = false;
compilerparams.CompilerOptions = string.Format("/lib:{0}", exWpfDir);
compilerparams.CompilerOptions = string.Format("/lib:{0}", exDir);
答案 2 :(得分:2)
另一个问题可能是System.Core.dll实际上位于与其他dll不同的位置。
在我的计算机上,System.Core.dll位于%ProgramFiles%\ Reference Assemblies \ Microsoft \ Framework \ v3.5 \ System.Core.dll中,而其他dll位于GAC中。
答案 3 :(得分:1)
有时您需要将引用的程序集添加到CSharpCodeProvider
参数。
parameters.ReferencedAssemblies.Add("System.dll");
希望这有帮助。
答案 4 :(得分:0)
结果代码
using System;
using System.Linq;
using System.Collections.Generic;
namespace DynaCore
{
public class DynaCore
{
static public Func<Boolean, bool> Main()
{
Func<Boolean, bool> retur = (o) => true;
}
}
}
粘贴到新文件时,不会自行编译。第一个编译错误是
'DynaCore.DynaCore.Main()':并非所有代码路径都返回值
首先,您需要生成粘贴到空.cs文件时编译的代码。
第一个显而易见的事情是将func语句修复为类似
的内容return new Func<Boolean, bool>(o => true);
修改强>
并且不要调用方法Main
。