private async Task <bool> TryInitializeAsync(
TService service,
SemanticDocument document,
SyntaxNode node,
CancellationToken cancellationToken)
{
if (service.IsIdentifierNameGeneration(node))
{
// Cases that we deal with currently:
//
// 1) expr.Goo
// 2) expr->Goo
// 3) Goo
if (!TryInitializeSimpleName(service, document, (TSimpleNameSyntax)node, cancellationToken))
{
return(false);
}
}
else if (service.IsExplicitInterfaceGeneration(node))
{
// 4) bool IGoo.NewProp
if (!TryInitializeExplicitInterface(service, document, node, cancellationToken))
{
return(false);
}
}
else
{
return(false);
}
// Ok. It either didn't bind to any symbols, or it bound to a symbol but with
// errors. In the former case we definitely want to offer to generate a field. In
// the latter case, we want to generate a field *unless* there's an existing member
// with the same name. Note: it's ok if there's a method with the same name.
var existingMembers = this.TypeToGenerateIn.GetMembers(this.IdentifierToken.ValueText)
.Where(m => m.Kind != SymbolKind.Method);
if (existingMembers.Any())
{
// TODO: Code coverage
// There was an existing method that the new method would clash with.
return(false);
}
if (cancellationToken.IsCancellationRequested)
{
return(false);
}
this.TypeToGenerateIn = await SymbolFinder.FindSourceDefinitionAsync(this.TypeToGenerateIn, document.Project.Solution, cancellationToken).ConfigureAwait(false) as INamedTypeSymbol;
if (!service.ValidateTypeToGenerateIn(
document.Project.Solution, this.TypeToGenerateIn, this.IsStatic, ClassInterfaceModuleStructTypes, cancellationToken))
{
return(false);
}
this.IsContainedInUnsafeType = service.ContainingTypesOrSelfHasUnsafeKeyword(this.TypeToGenerateIn);
return(CanGenerateLocal() || CodeGenerator.CanAdd(document.Project.Solution, this.TypeToGenerateIn, cancellationToken));
}