private static CodeParameterDeclarationExpression[] CreateMethodParameters(XpidlMethod xpidlMethod)
{
var codeParameters = new List<CodeParameterDeclarationExpression>(xpidlMethod.Parameters.Count);
foreach (XpidlMethodParameter xpidlParameter in xpidlMethod.Parameters)
{
var codeParameter = new CodeParameterDeclarationExpression();
switch (xpidlParameter.Direction)
{
case XpidlParameterDirection.In:
switch (xpidlParameter.Type)
{
case XpidlType.nsIDRef:
case XpidlType.nsIIDRef:
case XpidlType.nsCIDRef:
codeParameter.Direction = FieldDirection.Ref;
break;
default:
codeParameter.Direction = FieldDirection.In;
break;
}
break;
case XpidlParameterDirection.Out:
codeParameter.Direction = FieldDirection.Out;
break;
case XpidlParameterDirection.In | XpidlParameterDirection.Out:
codeParameter.Direction = FieldDirection.Ref;
break;
}
CodeAttributeDeclaration codeMarshalAsAttribute;
CodeTypeReference parameterType = CreateCodeTypeReference(xpidlParameter.Type, out codeMarshalAsAttribute);
if (xpidlParameter.Modifiers.Contains(XpidlParamModifier.Array))
{
CodeAttributeArgument marshalAsArgument = codeMarshalAsAttribute == null ? null : codeMarshalAsAttribute.Arguments[0];
codeMarshalAsAttribute =
new CodeAttributeDeclaration(
new CodeTypeReference(typeof(MarshalAsAttribute)),
new CodeAttributeArgument(
new CodeFieldReferenceExpression(new CodeTypeReferenceExpression(typeof(UnmanagedType)), UnmanagedType.LPArray.ToString())));
if (marshalAsArgument != null)
{
marshalAsArgument.Name = "ArraySubType";
codeMarshalAsAttribute.Arguments.Add(marshalAsArgument);
}
parameterType = new CodeTypeReference(parameterType, 1);
}
if (xpidlParameter.Modifiers.Contains(XpidlParamModifier.SizeIs) && (codeMarshalAsAttribute != null))
{
var sizeIsArgument =
new CodeAttributeArgument(
"SizeParamIndex",
new CodePrimitiveExpression(xpidlMethod.GetParameterIndex(xpidlParameter.Modifiers[XpidlParamModifier.SizeIs])));
codeMarshalAsAttribute.Arguments.Add(sizeIsArgument);
}
if (xpidlParameter.Modifiers.Contains(XpidlParamModifier.IidIs) && (codeMarshalAsAttribute == null))
{
codeMarshalAsAttribute =
new CodeAttributeDeclaration(
new CodeTypeReference(typeof(MarshalAsAttribute)),
new CodeAttributeArgument(
new CodeFieldReferenceExpression(new CodeTypeReferenceExpression(typeof(UnmanagedType)), UnmanagedType.Interface.ToString())),
new CodeAttributeArgument(
"IidParameterIndex",
new CodePrimitiveExpression(xpidlMethod.GetParameterIndex(xpidlParameter.Modifiers[XpidlParamModifier.IidIs]))));
parameterType = new CodeTypeReference(typeof(Object));
}
codeParameter.Name = xpidlParameter.Name;
codeParameter.Type = parameterType;
codeParameter.CustomAttributes.AddAttribute(codeMarshalAsAttribute);
codeParameters.Add(codeParameter);
}
return codeParameters.ToArray();
}
internal void AddNode(XpidlMethod method)
{
AddNodeImpl(method);
}
private static CodeMemberMethod CreateCodeMemberMethod(XpidlMethod xpidlMethod)
{
var codeMethodMember =
new CodeMemberMethod { Name = xpidlMethod.Name.ToUpperCamel() };
CodeParameterDeclarationExpression[] codeParameters = CreateMethodParameters(xpidlMethod);
codeMethodMember.Parameters.AddRange(codeParameters);
// Create CodeTypeReference and custom attributes for XpidlMethod return type
CodeAttributeDeclaration codeMarshalAsAttribute;
CodeTypeReference codeMethodType = CreateCodeTypeReference(xpidlMethod.Type, out codeMarshalAsAttribute);
switch (xpidlMethod.Type)
{
case XpidlType.AString:
case XpidlType.ACString:
case XpidlType.AUTF8String:
case XpidlType.DOMString:
codeMethodMember.ReturnType = new CodeTypeReference(typeof(void));
var resultParameter = new CodeParameterDeclarationExpression(codeMethodType, "result");
resultParameter.CustomAttributes.AddAttribute(codeMarshalAsAttribute);
codeMethodMember.Parameters.Add(resultParameter);
break;
default:
codeMethodMember.ReturnType = codeMethodType;
codeMethodMember.ReturnTypeCustomAttributes.AddAttribute(codeMarshalAsAttribute);
break;
}
if ((xpidlMethod.Parameters.Count > 0) && (xpidlMethod.Parameters[xpidlMethod.Parameters.Count - 1].Modifiers.Contains(XpidlParamModifier.RetVal)))
{
var preserveSigAttribute = new CodeAttributeDeclaration(new CodeTypeReference(typeof(PreserveSigAttribute)));
codeMethodMember.CustomAttributes.Add(preserveSigAttribute);
}
return codeMethodMember;
}
