internal bool CalculateUseSiteDiagnostic(ref UseSiteInfo <AssemblySymbol> result)
{
Debug.Assert(IsDefinition);
// Check type, custom modifiers
if (DeriveUseSiteInfoFromType(ref result, this.TypeWithAnnotations, AllowedRequiredModifierType.System_Runtime_CompilerServices_Volatile))
{
return(true);
}
// If the member is in an assembly with unified references,
// we check if its definition depends on a type from a unified reference.
if (this.ContainingModule.HasUnifiedReferences)
{
HashSet <TypeSymbol> unificationCheckedTypes = null;
DiagnosticInfo diagnosticInfo = result.DiagnosticInfo;
if (this.TypeWithAnnotations.GetUnificationUseSiteDiagnosticRecursive(ref diagnosticInfo, this, ref unificationCheckedTypes))
{
result = result.AdjustDiagnosticInfo(diagnosticInfo);
return(true);
}
result = result.AdjustDiagnosticInfo(diagnosticInfo);
}
return(false);
}
internal sealed override UseSiteInfo <AssemblySymbol> GetUseSiteInfo()
{
var type = this.TypeWithAnnotations;
UseSiteInfo <AssemblySymbol> result = default;
if (!DeriveUseSiteInfoFromType(ref result, type, AllowedRequiredModifierType.None) && this.ContainingModule.HasUnifiedReferences)
{
// If the member is in an assembly with unified references,
// we check if its definition depends on a type from a unified reference.
HashSet <TypeSymbol> unificationCheckedTypes = null;
var diagnosticInfo = result.DiagnosticInfo;
type.GetUnificationUseSiteDiagnosticRecursive(ref diagnosticInfo, this, ref unificationCheckedTypes);
result = result.AdjustDiagnosticInfo(diagnosticInfo);
}
return(result);
}
private BoundExpression MakeTupleFieldAccessAndReportUseSiteDiagnostics(BoundExpression tuple, SyntaxNode syntax, FieldSymbol field)
{
// Use default field rather than implicitly named fields since
// fields from inferred names are not usable in C# 7.0.
field = field.CorrespondingTupleField ?? field;
UseSiteInfo <AssemblySymbol> useSiteInfo = field.GetUseSiteInfo();
if (useSiteInfo.DiagnosticInfo?.Severity != DiagnosticSeverity.Error)
{
useSiteInfo = useSiteInfo.AdjustDiagnosticInfo(null);
}
_diagnostics.Add(useSiteInfo, syntax.Location);
return(MakeTupleFieldAccess(syntax, field, tuple));
}
