public void WillNotDelegateANoScriptMethodMethod()
{
var delegater = new MethodDelegater();
var result = delegater.BuildDelegateMethod(typeof(TestDelegaterClass).GetMethod("NoScriptMethod"), "testClass");
result.ShouldBeNull();
}
public void CanDelegateAMethodWithParams()
{
var delegater = new MethodDelegater();
var result = delegater.BuildDelegateMethod(typeof(TestDelegaterClass).GetMethod("MethodWithParams"), "testClass");
CompileToString(result).ShouldEqual(@"public void MethodWithParams(params object[] objs)
{
testClass.MethodWithParams(objs);
}");
}
public void CanDelegateAMethodWithOptionalStringParameter()
{
var delegater = new MethodDelegater();
var result = delegater.BuildDelegateMethod(typeof(TestDelegaterClass).GetMethod("MethodWithOptionalString"), "testClass");
CompileToString(result).ShouldEqual(@"public void MethodWithOptionalString([System.Runtime.InteropServices.OptionalAttribute()] [System.Runtime.InteropServices.DefaultParameterValueAttribute(""Test"")] string str)
{
testClass.MethodWithOptionalString(str);
}");
}
public void CanDelegateAMethodWithReturnType()
{
var delegater = new MethodDelegater();
var result = delegater.BuildDelegateMethod(typeof(TestDelegaterClass).GetMethod("MethodWithReturn"), "testClass");
CompileToString(result).ShouldEqual(@"public string MethodWithReturn()
{
return testClass.MethodWithReturn();
}");
}
public void CanDelegateAMethodWithSimpleArgument()
{
var delegater = new MethodDelegater();
var result = delegater.BuildDelegateMethod(typeof(TestDelegaterClass).GetMethod("MethodWithArgument"), "testClass");
CompileToString(result).ShouldEqual(@"public void MethodWithArgument(string test)
{
testClass.MethodWithArgument(test);
}");
}
private void DelegateMethods(CodeTypeDeclaration typeDeclaration, Type[] delegatedTypes)
{
var initializeMethod = new CodeMemberMethod();
initializeMethod.Name = "Initialize";
initializeMethod.Attributes = MemberAttributes.Public | MemberAttributes.Final;
var codeParameter = new CodeParameterDeclarationExpression(typeof(object[]), "objs");
initializeMethod.Parameters.Add(codeParameter);
for (var i = 0; i < delegatedTypes.Length; i++)
{
var delegatedType = delegatedTypes[i];
string instanceName = GenerateInstanceName(delegatedType);
var fieldDeclaration = new CodeMemberField(delegatedType, instanceName);
typeDeclaration.Members.Add(fieldDeclaration);
foreach (var methodInfo in delegatedType.GetMethods(BindingFlags.Public | BindingFlags.Instance))
{
if (methodInfo.DeclaringType == typeof(object) || methodInfo.Attributes.HasFlag(MethodAttributes.SpecialName))
{
continue;
}
var delegateMethod = _methodDelegater.BuildDelegateMethod(methodInfo, instanceName);
if (delegateMethod != null)
{
typeDeclaration.Members.Add(delegateMethod);
}
}
var argumentReference = new CodeArgumentReferenceExpression("objs");
var codeArrayIndexerExpression = new CodeArrayIndexerExpression(argumentReference, new CodeSnippetExpression(i.ToString()));
var castExpression = new CodeCastExpression(delegatedType, codeArrayIndexerExpression);
var assignmentStatement = new CodeAssignStatement(new CodeFieldReferenceExpression(new CodeThisReferenceExpression(), instanceName), castExpression);
initializeMethod.Statements.Add(assignmentStatement);
}
typeDeclaration.Members.Add(initializeMethod);
}