private static void AddToList(
RefactoringContext context,
ExpressionSyntax expression,
INamedTypeSymbol destinationType,
SemanticModel semanticModel)
{
INamedTypeSymbol list = semanticModel.Compilation.GetTypeByMetadataName("System.Collections.Generic.List`1");
if (list != null && destinationType.ConstructedFrom == list)
{
INamedTypeSymbol enumerable = semanticModel.Compilation.GetTypeByMetadataName("System.Linq.Enumerable");
if (enumerable != null)
{
AddToMethodInvocationRefactoring.ComputeRefactoring(context, expression, enumerable, "ToList");
}
}
}
private static void AddToArray(
RefactoringContext context,
ExpressionSyntax expression,
IArrayTypeSymbol arrayType,
SemanticModel semanticModel)
{
ITypeSymbol expressionType = semanticModel.GetTypeInfo(expression, context.CancellationToken).Type;
if (expressionType?.IsNamedType() == true)
{
INamedTypeSymbol constructedFrom = ((INamedTypeSymbol)expressionType).ConstructedFrom;
if (constructedFrom.SpecialType == SpecialType.System_Collections_Generic_IEnumerable_T ||
constructedFrom.Implements(SpecialType.System_Collections_Generic_IEnumerable_T))
{
INamedTypeSymbol enumerable = semanticModel.Compilation.GetTypeByMetadataName("System.Linq.Enumerable");
if (enumerable != null)
{
AddToMethodInvocationRefactoring.ComputeRefactoring(context, expression, enumerable, "ToArray");
}
}
}
}
private static bool AddToMethodInvocation(
RefactoringContext context,
ExpressionSyntax expression,
ITypeSymbol destinationType,
SemanticModel semanticModel)
{
if (destinationType.IsString())
{
AddToMethodInvocationRefactoring.ComputeRefactoring(context, expression, destinationType, "ToString");
return(true);
}
else if (destinationType.IsArrayType())
{
AddToArray(context, expression, (IArrayTypeSymbol)destinationType, semanticModel);
return(true);
}
else if (destinationType.IsNamedType())
{
AddToList(context, expression, (INamedTypeSymbol)destinationType, semanticModel);
return(true);
}
return(false);
}
