/// <summary>
/// Creates a clone of this instance.
/// </summary>
/// <returns>Clone of the instance with the member element state copied.</returns>
protected override MemberElement DoMemberClone()
{
DelegateElement clone = new DelegateElement();
//
// Copy state
//
clone._params = _params;
foreach (TypeParameter typeParam in TypeParameters)
{
TypeParameter typeParamClone = typeParam.Clone() as TypeParameter;
clone.TypeParametersBase.Add(typeParamClone);
}
return(clone);
}
/// <summary>
/// Parses a delegate.
/// </summary>
/// <param name="access">The member access.</param>
/// <param name="memberAttributes">The member attributes.</param>
/// <returns>Delegate code element.</returns>
private DelegateElement ParseDelegate(
CodeAccess access, MemberModifiers memberAttributes)
{
string delegateType = CaptureWord();
bool isFunction = false;
switch (VBKeyword.Normalize(delegateType))
{
case VBKeyword.Sub:
isFunction = false;
break;
case VBKeyword.Function:
isFunction = true;
break;
default:
this.OnParseError(
"Expected Sub or Function for delegate declaration");
break;
}
MethodElement methodElement = ParseMethod(
access, memberAttributes, isFunction, true, false, OperatorType.None, false, false, null);
DelegateElement delegateElement = new DelegateElement();
delegateElement.Name = methodElement.Name;
delegateElement.Access = methodElement.Access;
delegateElement.MemberModifiers = methodElement.MemberModifiers;
delegateElement.Parameters = methodElement.Parameters;
delegateElement.BodyText = methodElement.BodyText;
if (isFunction)
{
delegateElement.Type = methodElement.Type;
}
foreach (TypeParameter typeParameter in methodElement.TypeParameters)
{
delegateElement.AddTypeParameter(typeParameter);
}
return delegateElement;
}
/// <summary> /// Processes a delegate element. /// </summary> /// <param name="element">Delegate code element.</param> public abstract void VisitDelegateElement(DelegateElement element);
/// <summary>
/// Processes a delegate element.
/// </summary>
/// <param name="element">Delegate code element.</param>
public override void VisitDelegateElement(DelegateElement element)
{
this.WriteComments(element.HeaderComments);
this.WriteAttributes(element);
WriteAccess(element.Access);
WriteMemberAttributes(
element.MemberModifiers,
element[VBExtendedProperties.Overloads] is bool && (bool)element[VBExtendedProperties.Overloads]);
Writer.Write(VBKeyword.Delegate);
Writer.Write(' ');
WriteMethodType(element.Type);
Writer.Write(element.Name);
WriteTypeParameters(element);
WriteParameterList(element.Parameters);
WriteReturnType(element.Type);
}
/// <summary>
/// Creates a clone of this instance.
/// </summary>
/// <returns>Clone of the instance with the member element state copied.</returns>
protected override MemberElement DoMemberClone()
{
DelegateElement clone = new DelegateElement();
//
// Copy state
//
clone._params = _params;
foreach (TypeParameter typeParam in TypeParameters)
{
TypeParameter typeParamClone = typeParam.Clone() as TypeParameter;
clone.TypeParametersBase.Add(typeParamClone);
}
return clone;
}
/// <summary>
/// Processes a delegate element.
/// </summary>
/// <param name="element">Delegate code element.</param>
public override void VisitDelegateElement(DelegateElement element)
{
this.WriteComments(element.HeaderComments);
this.WriteAttributes(element);
WriteAccess(element.Access);
WriteMemberAttributes(element.MemberModifiers);
Writer.Write(CSharpKeyword.Delegate);
Writer.Write(' ');
Writer.Write(element.Type);
Writer.Write(' ');
Writer.Write(element.Name);
WriteTypeParameters(element);
WriteParameterList(element.Parameters);
WriteTypeParameterConstraints(element);
Writer.Write(CSharpSymbol.EndOfStatement);
}
/// <summary>
/// Parses a delegate.
/// </summary>
/// <param name="memberName">Member name</param>
/// <param name="access">Code access</param>
/// <param name="memberAttributes">Member attributes</param>
/// <param name="returnType">Return type</param>
/// <returns>A delegate code element.</returns>
private DelegateElement ParseDelegate(
string memberName, CodeAccess access, MemberModifiers memberAttributes, string returnType)
{
DelegateElement delegateElement = new DelegateElement();
delegateElement.Name = memberName;
delegateElement.Access = access;
delegateElement.Type = returnType;
delegateElement.MemberModifiers = memberAttributes;
int genericIndex = memberName.IndexOf(CSharpSymbol.BeginGeneric);
bool isGeneric = genericIndex >= 0 && genericIndex < memberName.Length - 1;
if (isGeneric)
{
delegateElement.Name = memberName.Substring(0, genericIndex);
string typeParameterString = memberName.TrimEnd(CSharpSymbol.EndGeneric).Substring(
genericIndex + 1);
string[] typeParameterNames = typeParameterString.Split(
new char[] { CSharpSymbol.AliasSeparator, ' ' },
StringSplitOptions.RemoveEmptyEntries);
foreach (string typeParameterName in typeParameterNames)
{
TypeParameter typeParameter = new TypeParameter();
typeParameter.Name = typeParameterName;
delegateElement.AddTypeParameter(typeParameter);
}
}
delegateElement.Parameters = this.ParseParameters();
if (isGeneric)
{
ParseTypeParameterConstraints(delegateElement);
}
EatChar(CSharpSymbol.EndOfStatement);
return delegateElement;
}
/// <summary>
/// Parses a delegate.
/// </summary>
/// <param name="memberName">Member name</param>
/// <param name="access">Code access</param>
/// <param name="memberAttributes">Member attributes</param>
/// <param name="returnType">Return type</param>
/// <returns>A delegate code element.</returns>
private DelegateElement ParseDelegate(
string memberName, CodeAccess access, MemberModifiers memberAttributes, string returnType)
{
DelegateElement delegateElement = new DelegateElement();
delegateElement.Name = memberName;
delegateElement.Access = access;
delegateElement.Type = returnType;
delegateElement.MemberModifiers = memberAttributes;
int genericIndex = memberName.IndexOf(CSharpSymbol.BeginGeneric);
bool isGeneric = genericIndex >= 0 && genericIndex < memberName.Length - 1;
if (isGeneric)
{
delegateElement.Name = memberName.Substring(0, genericIndex);
string typeParameterString = memberName.TrimEnd(CSharpSymbol.EndGeneric).Substring(
genericIndex + 1);
string[] typeParameterNames = typeParameterString.Split(
new char[] { CSharpSymbol.AliasSeparator, ' ' },
StringSplitOptions.RemoveEmptyEntries);
bool checkVariance = false;
for (int i = 0; i < typeParameterNames.Length; i++)
{
string typeParameterName = typeParameterNames[i];
if (typeParameterName == "in" || typeParameterName == "out")
{
checkVariance = true;
continue;
}
TypeParameter typeParameter = new TypeParameter();
if (checkVariance)
{
checkVariance = false;
typeParameter.IsIn = typeParameterNames[i - 1] == "in";
typeParameter.IsOut = typeParameterNames[i - 1] == "out";
}
typeParameter.Name = typeParameterName;
delegateElement.AddTypeParameter(typeParameter);
}
}
delegateElement.Parameters = this.ParseParameters();
if (isGeneric)
{
ParseTypeParameterConstraints(delegateElement);
}
EatChar(CSharpSymbol.EndOfStatement);
return delegateElement;
}
