internal static void ReportDefaultInterfaceImplementationModifiers(
bool hasBody,
DeclarationModifiers modifiers,
DeclarationModifiers defaultInterfaceImplementationModifiers,
Location errorLocation,
BindingDiagnosticBag diagnostics)
{
if (!hasBody && (modifiers & defaultInterfaceImplementationModifiers) != 0)
{
LanguageVersion availableVersion = ((CSharpParseOptions)errorLocation.SourceTree.Options).LanguageVersion;
LanguageVersion requiredVersion = MessageID.IDS_DefaultInterfaceImplementation.RequiredVersion();
if (availableVersion < requiredVersion)
{
DeclarationModifiers errorModifiers = modifiers & defaultInterfaceImplementationModifiers;
var requiredVersionArgument = new CSharpRequiredLanguageVersion(requiredVersion);
var availableVersionArgument = availableVersion.ToDisplayString();
while (errorModifiers != DeclarationModifiers.None)
{
DeclarationModifiers oneError = errorModifiers & ~(errorModifiers - 1);
Debug.Assert(oneError != DeclarationModifiers.None);
errorModifiers = errorModifiers & ~oneError;
diagnostics.Add(ErrorCode.ERR_InvalidModifierForLanguageVersion, errorLocation,
ConvertSingleModifierToSyntaxText(oneError),
availableVersionArgument,
requiredVersionArgument);
}
}
}
}
internal static void ReportUnsupportedModifiersForLanguageVersion(DeclarationModifiers modifiers, DeclarationModifiers unsupportedModifiers, Location errorLocation, BindingDiagnosticBag diagnostics, LanguageVersion availableVersion, LanguageVersion requiredVersion)
{
DeclarationModifiers errorModifiers = modifiers & unsupportedModifiers;
var requiredVersionArgument = new CSharpRequiredLanguageVersion(requiredVersion);
var availableVersionArgument = availableVersion.ToDisplayString();
while (errorModifiers != DeclarationModifiers.None)
{
DeclarationModifiers oneError = errorModifiers & ~(errorModifiers - 1);
Debug.Assert(oneError != DeclarationModifiers.None);
errorModifiers = errorModifiers & ~oneError;
diagnostics.Add(ErrorCode.ERR_InvalidModifierForLanguageVersion, errorLocation,
ConvertSingleModifierToSyntaxText(oneError),
availableVersionArgument,
requiredVersionArgument);
}
}
