public static TSyntax BuildTypeParameterSyntax <TSyntax>(IHasTypeParameters itemAsT, TSyntax node,
WhitespaceKindLookup whitespaceLookup,
Func <TSyntax, TypeParameterListSyntax, TSyntax> addTypeParameters,
Func <TSyntax, SyntaxList <TypeParameterConstraintClauseSyntax>, TSyntax> addTypeParameterConstraints)
where TSyntax : SyntaxNode
{
// This works oddly because it uncollapses the list
// This code is largely repeated in interface and class factories, but is very hard to refactor because of shallow Roslyn (Microsoft) architecture
var typeParamsAndConstraints = itemAsT.TypeParameters
.SelectMany(x => RDom.CSharp.GetSyntaxGroup(x))
.ToList();
var typeParameterSyntaxList = BuildSyntaxHelpers.GetTypeParameterSyntaxList(
typeParamsAndConstraints, itemAsT.Whitespace2Set, whitespaceLookup);
if (typeParameterSyntaxList != null)
{
node = addTypeParameters(node, typeParameterSyntaxList);
var clauses = BuildSyntaxHelpers.GetTypeParameterConstraintList(
typeParamsAndConstraints, itemAsT.Whitespace2Set, whitespaceLookup);
if (clauses.Any())
{
node = addTypeParameterConstraints(node, clauses);
}
}
return(node);
}
