/// <nodoc />
public static IReadOnlyList <ISymbol> GetPropertySymbolsFromContextualType(INode node, ITypeChecker checker)
{
if (IsNameOfPropertyAssignment(node))
{
var objectLiteral = node.Parent?.Parent.As <IObjectLiteralExpression>();
var contextualType = objectLiteral != null?checker.GetContextualType(objectLiteral) : null;
var name = node.GetText(); // TODO: saqadri - verify correctness (const name = (<Identifier>node).text;
if (contextualType != null)
{
if ((contextualType.Flags & TypeFlags.Union) != TypeFlags.None)
{
// TODO: saqadri - port
// This is a union type, first see if the property we are looking for is a union property (i.e. exists in all types)
// if not, search the constituent types for the property
var unionProperty = checker.GetPropertyOfType(contextualType, name);
if (unionProperty != null)
{
return(new List <ISymbol> {
unionProperty
});
}
var result = new List <ISymbol>();
foreach (var t in contextualType.Cast <IUnionType>().Types ?? Enumerable.Empty <IType>())
{
var symbol = checker.GetPropertyOfType(t, name);
if (symbol != null)
{
result.Add(symbol);
}
}
return(result);
}
var contextualSymbol = checker.GetPropertyOfType(contextualType, name);
if (contextualSymbol != null)
{
return(new List <ISymbol> {
contextualSymbol
});
}
}
}
return(BuildXL.Utilities.Collections.CollectionUtilities.EmptyArray <ISymbol>());
}