private string GetMethods()
{
var methods = new StringBuilder();
var callbackMethods = this.CallbackType.GetMethods(
BindingFlags.Public | BindingFlags.Instance);
foreach (var interfaceMethod in this.InterfaceType.GetMethods())
{
methods.Append("public " +
MockCodeGenerator.GetMethod(interfaceMethod) + "{");
var callbackMethod = this.FindMethod(callbackMethods, interfaceMethod);
if (callbackMethod != null)
{
if (callbackMethod.ReturnType != typeof(void))
{
methods.Append("return ");
}
methods.Append("this.callback." +
MockCodeGenerator.GetMethod(callbackMethod, false) + ";");
}
else
{
if (interfaceMethod.ReturnType != typeof(void))
{
methods.Append("return " + (
interfaceMethod.ReturnType.IsClass ?
"null;" : string.Format("default({0});",
interfaceMethod.ReturnType.FullName)));
}
}
methods.Append("}");
}
return(methods.ToString());
}
public static T Create <T>(object callback)
where T : class
{
var interfaceType = typeof(T);
if (!interfaceType.IsInterface)
{
throw new NotSupportedException();
}
var callbackType = callback.GetType();
var mockName = callbackType.Name +
Guid.NewGuid().ToString("N");
var template = new MockCodeGenerator(mockName,
interfaceType, callbackType).Code;
var compilation = Compilation.Create("Mock",
options: new CompilationOptions(OutputKind.DynamicallyLinkedLibrary),
syntaxTrees: new[]
{
SyntaxTree.ParseCompilationUnit(template)
},
references: new MetadataReference[]
{
new AssemblyFileReference(typeof(Guid).Assembly.Location),
new AssemblyFileReference(interfaceType.Assembly.Location),
new AssemblyFileReference(callbackType.Assembly.Location)
});
var result = compilation.Emit(Mock.builder.Value);
if (!result.Success)
{
throw new NotSupportedException(string.Join(Environment.NewLine,
from diagnostic in result.Diagnostics
select diagnostic.Info.GetMessage()));
}
return(Activator.CreateInstance(Mock.builder.Value.GetType(mockName), callback) as T);
}