public void ResolveExtensionMethods()
{
// Console.WriteLine (" --- Resolve extension");
// Console.WriteLine ("---Args:");
// foreach (var arg in arguments)
// Console.WriteLine (arg);
// Console.WriteLine ("---GenArgs:");
// if (genericArguments != null) {
// foreach (var arg in genericArguments)
// Console.WriteLine (arg);
// } else {
// Console.WriteLine ("<null>");
// }
Debug.Assert(originalMethods.Count == methods.Count);
for (int i = 0; i < originalMethods.Count; i++)
{
if (originalMethods[i] is ExtensionMethod) // Extension methods are already resolved & instantiated.
{
methods[i] = originalMethods[i];
}
else if (!StaticUsage && originalMethods[i].IsExtension && Type != null)
{
methods[i] = new ExtensionMethod(Type, originalMethods[i], genericArguments, arguments);
}
else
{
methods[i] = DomMethod.CreateInstantiatedGenericMethod(originalMethods[i], genericArguments, arguments);
}
}
// Console.WriteLine ("-- end resolve extension.");
}
public IMethod Extends(ProjectDom dom, IType type)
{
if (dom == null || type == null || Parameters.Count == 0 || !IsExtension)
{
return(null);
}
string extensionTableKey = this.HelpUrl + "/" + type.FullName;
if (Name.StartsWith("ForEachWithIndex"))
{
Console.WriteLine("table key:" + extensionTableKey);
}
lock (extensionTable) {
if (extensionTable.ContainsKey(extensionTableKey))
{
return(extensionTable[extensionTableKey]);
}
if (type.BaseType != null && type.BaseType.FullName == "System.Array" && Parameters[0].ReturnType.ArrayDimensions > 0)
{
IReturnType elementType = null;
foreach (IReturnType returnType in type.BaseTypes)
{
if (returnType.FullName == "System.Collections.Generic.IList" && returnType.GenericArguments.Count > 0)
{
elementType = returnType.GenericArguments[0];
break;
}
}
if (elementType != null)
{
IMethod instMethod = DomMethod.CreateInstantiatedGenericMethod(this, new IReturnType[] {}, new IReturnType[] { elementType });
instMethod = new ExtensionMethod(type, instMethod, null, null);
extensionTable.Add(extensionTableKey, instMethod);
return(instMethod);
}
}
foreach (IType baseType in dom.GetInheritanceTree(type))
{
IMethod instMethod = DomMethod.CreateInstantiatedGenericMethod(this, new IReturnType[] {}, new IReturnType[] { new DomReturnType(baseType) });
string baseTypeFullName = baseType is InstantiatedType ? ((InstantiatedType)baseType).UninstantiatedType.FullName : baseType.FullName;
// compare the generic arguments.
if (instMethod.Parameters[0].ReturnType.FullName == baseTypeFullName && Parameters[0].ReturnType.ArrayDimensions == 0 && Parameters[0].ReturnType.PointerNestingLevel == 0)
{
if (instMethod.Parameters[0].ReturnType.GenericArguments.Count > 0)
{
InstantiatedType instType = baseType as InstantiatedType;
if (instType == null || instType.GenericParameters.Count != instMethod.Parameters[0].ReturnType.GenericArguments.Count)
{
continue;
}
bool genericArgumentsAreEqual = true;
for (int i = 0; i < instMethod.Parameters[0].ReturnType.GenericArguments.Count; i++)
{
if (Name.StartsWith("ForEachWithIndex"))
{
Console.WriteLine(instMethod.Parameters[0].ReturnType.GenericArguments[i].DecoratedFullName + " --- " + instType.GenericParameters[i].DecoratedFullName);
}
if (instMethod.Parameters[0].ReturnType.GenericArguments[i].DecoratedFullName != instType.GenericParameters[i].DecoratedFullName)
{
genericArgumentsAreEqual = false;
break;
}
}
if (!genericArgumentsAreEqual)
{
continue;
}
}
//ExtensionMethod result = new ExtensionMethod (baseType, this, null, null);
instMethod = new ExtensionMethod(type, instMethod, null, null);
extensionTable.Add(extensionTableKey, instMethod);
//Console.WriteLine ("ext. method:" + instMethod);
return(instMethod);
}
}
// Console.WriteLine ("null");
extensionTable.Add(extensionTableKey, null);
return(null);
}
}
public void ResolveExtensionMethods ()
{
// Console.WriteLine (" --- Resolve extension");
// Console.WriteLine ("---Args:");
// foreach (var arg in arguments)
// Console.WriteLine (arg);
// Console.WriteLine ("---GenArgs:");
// if (genericArguments != null) {
// foreach (var arg in genericArguments)
// Console.WriteLine (arg);
// } else {
// Console.WriteLine ("<null>");
// }
Debug.Assert (originalMethods.Count == methods.Count);
for (int i = 0; i < originalMethods.Count; i++) {
if (originalMethods[i] is ExtensionMethod) { // Extension methods are already resolved & instantiated.
methods[i] = originalMethods[i];
} else if (!StaticUsage && originalMethods[i].IsExtension && Type != null) {
methods[i] = new ExtensionMethod (Type, originalMethods[i], genericArguments, arguments);
} else {
methods[i] = DomMethod.CreateInstantiatedGenericMethod (originalMethods[i], genericArguments, arguments);
}
}
// Console.WriteLine ("-- end resolve extension.");
}
public void ExtensionMethodPreserveParameterTest ()
{
// build "T MyMethod<T, S> (T a, S b)"
DomMethod method = new DomMethod ();
method.Name = "MyMethod";
method.ReturnType = new DomReturnType ("T");
method.AddTypeParameter (new TypeParameter ("T"));
method.AddTypeParameter (new TypeParameter ("S"));
method.Add (new DomParameter (method, "a", new DomReturnType ("T")));
method.Add (new DomParameter (method, "b", new DomReturnType ("S")));
// extend method
List<IReturnType> genArgs = new List<IReturnType> ();
List<IReturnType> args = new List<IReturnType> ();
DomType extType = new DomType ("MyType");
ExtensionMethod extMethod = new ExtensionMethod (extType, method, genArgs, args);
// check for MyType MyMethod<S> (S b)
Assert.AreEqual ("MyType", extMethod.ReturnType.FullName);
Assert.AreEqual ("S", extMethod.Parameters[0].ReturnType.FullName);
Assert.AreEqual (1, extMethod.TypeParameters.Count);
Assert.AreEqual ("S", extMethod.TypeParameters[0].Name);
}
public void ExtensionMethodTest ()
{
// build "T MyMethod<T, S> (this KeyValuePair<T, S> a, S b)"
DomMethod method = new DomMethod ();
method.Name = "MyMethod";
method.ReturnType = new DomReturnType ("T");
method.AddTypeParameter (new TypeParameter ("T"));
method.AddTypeParameter (new TypeParameter ("S"));
DomReturnType returnType = new DomReturnType ("KeyValuePair");
returnType.AddTypeParameter (new DomReturnType ("T"));
returnType.AddTypeParameter (new DomReturnType ("S"));
method.Add (new DomParameter (method, "a", returnType));
method.Add (new DomParameter (method, "b", new DomReturnType ("S")));
// Build extendet type KeyValuePair<int, object>
DomType type = new DomType ("KeyValuePair");
type.AddTypeParameter (new TypeParameter ("T"));
type.AddTypeParameter (new TypeParameter ("S"));
IType extType = DomType.CreateInstantiatedGenericTypeInternal (type, new IReturnType[] { DomReturnType.Int32, DomReturnType.Object });
Console.WriteLine (extType);
// extend method
List<IReturnType> genArgs = new List<IReturnType> ();
List<IReturnType> args = new List<IReturnType> ();
ExtensionMethod extMethod = new ExtensionMethod (extType, method, genArgs, args);
Console.WriteLine (extMethod);
// check
Assert.AreEqual (DomReturnType.Int32.FullName, extMethod.ReturnType.FullName);
Assert.AreEqual (DomReturnType.Object.FullName, extMethod.Parameters[0].ReturnType.FullName);
}
