private static SyntaxNode AddMaterializeCollectionInvocation(SyntaxGenerator generator, SyntaxNode sourceAccess, ITypeSymbol targetListType, bool isSourceNullable)
{
var materializeFunction = GetCollectionMaterializeFunction(targetListType);
var toListAccess = SyntaxFactoryExtensions.CreateMemberAccessExpression((ExpressionSyntax)sourceAccess, isSourceNullable, materializeFunction);
return(generator.InvocationExpression(toListAccess));
}
private MappingElement ConvertToSimpleType(AnnotatedType targetType, MappingElement source, MappingContext mappingContext)
{
var conversion = semanticModel.Compilation.ClassifyConversion(source.ExpressionType.Type, targetType.Type);
if (conversion.Exists == false)
{
var wrapper = GetWrappingInfo(source.ExpressionType.Type, targetType.Type, mappingContext);
if (wrapper.Type == WrapperInfoType.ObjectField)
{
return(new MappingElement
{
Expression = SyntaxFactoryExtensions.CreateMemberAccessExpression(source.Expression, source.ExpressionType.CanBeNull, wrapper.UnwrappingObjectField.Name),
ExpressionType = wrapper.UnwrappingObjectField.Type
});
}
if (wrapper.Type == WrapperInfoType.Method)
{
return(new MappingElement
{
Expression = SyntaxFactoryExtensions.CreateMethodAccessExpression(source.Expression, source.ExpressionType.CanBeNull, wrapper.UnwrappingMethod.Name),
ExpressionType = new AnnotatedType(wrapper.UnwrappingMethod.ReturnType)
});
}
if (targetType.Type.SpecialType == SpecialType.System_String && source.ExpressionType.Type.TypeKind == TypeKind.Enum)
{
var toStringAccess = SyntaxFactoryExtensions.CreateMethodAccessExpression(source.Expression, source.ExpressionType.CanBeNull, "ToString");
return(new MappingElement
{
Expression = toStringAccess,
ExpressionType = targetType
});
}
if (source.ExpressionType.Type.SpecialType == SpecialType.System_String && targetType.Type.TypeKind == TypeKind.Enum)
{
var parseEnumAccess = syntaxGenerator.MemberAccessExpression(SyntaxFactory.ParseTypeName("System.Enum"), "Parse");
var enumType = SyntaxFactory.ParseTypeName(targetType.Type.Name);
var parseInvocation = (InvocationExpressionSyntax)syntaxGenerator.InvocationExpression(parseEnumAccess, new[]
{
syntaxGenerator.TypeOfExpression(enumType),
source.Expression,
syntaxGenerator.TrueLiteralExpression()
});
return(new MappingElement()
{
Expression = (ExpressionSyntax)syntaxGenerator.CastExpression(enumType, parseInvocation),
ExpressionType = targetType.AsNotNull()
});
}
}
else if (conversion.IsExplicit)
{
return(new MappingElement()
{
Expression = (ExpressionSyntax)syntaxGenerator.CastExpression(targetType.Type, source.Expression),
ExpressionType = targetType
});
}
return(source);
}