static bool TryLogSingleWarning(LinkContext context, int code, MessageOrigin origin, string subcategory)
{
if (subcategory != MessageSubCategory.TrimAnalysis)
{
return(false);
}
// There are valid cases where we can't map the message to an assembly
// For example if it's caused by something in an xml file passed on the command line
// In that case, give up on single-warn collapse and just print out the warning on its own.
var assembly = origin.Provider switch {
AssemblyDefinition asm => asm,
TypeDefinition type => type.Module.Assembly,
IMemberDefinition member => member.DeclaringType.Module.Assembly,
_ => null
};
if (assembly == null)
{
return(false);
}
// Any IL2026 warnings left in an assembly with an IsTrimmable attribute are considered intentional
// and should not be collapsed, so that the user-visible RUC message gets printed.
if (code == 2026 && context.IsTrimmable(assembly))
{
return(false);
}
var assemblyName = assembly.Name.Name;
if (!context.IsSingleWarn(assemblyName))
{
return(false);
}
if (context.AssembliesWithGeneratedSingleWarning.Add(assemblyName))
{
context.LogWarning(context.GetAssemblyLocation(assembly), DiagnosticId.AssemblyProducedTrimWarnings, assemblyName);
}
return(true);
}
static bool TryLogSingleWarning(LinkContext context, int code, MessageOrigin origin, string subcategory)
{
if (subcategory != MessageSubCategory.TrimAnalysis)
{
return(false);
}
Debug.Assert(origin.Provider != null);
var assembly = origin.Provider switch {
AssemblyDefinition asm => asm,
TypeDefinition type => type.Module.Assembly,
IMemberDefinition member => member.DeclaringType.Module.Assembly,
_ => throw new NotSupportedException()
};
Debug.Assert(assembly != null);
if (assembly == null)
{
return(false);
}
// Any IL2026 warnings left in an assembly with an IsTrimmable attribute are considered intentional
// and should not be collapsed, so that the user-visible RUC message gets printed.
if (code == 2026 && context.IsTrimmable(assembly))
{
return(false);
}
var assemblyName = assembly.Name.Name;
if (!context.IsSingleWarn(assemblyName))
{
return(false);
}
if (context.AssembliesWithGeneratedSingleWarning.Add(assemblyName))
{
context.LogWarning($"Assembly '{assemblyName}' produced trim warnings. For more information see https://aka.ms/dotnet-illink/libraries", 2104, context.GetAssemblyLocation(assembly));
}
return(true);
}
