public static SourceParameterSymbol Create(
Binder context,
Symbol owner,
TypeWithAnnotations parameterType,
ParameterSyntax syntax,
RefKind refKind,
SyntaxToken identifier,
int ordinal,
bool isParams,
bool isExtensionMethodThis,
bool addRefReadOnlyModifier,
DiagnosticBag declarationDiagnostics)
{
Debug.Assert(!(owner is LambdaSymbol)); // therefore we don't need to deal with discard parameters
var name = identifier.ValueText;
var locations = ImmutableArray.Create <Location>(new SourceLocation(identifier));
if (isParams)
{
// touch the constructor in order to generate proper use-site diagnostics
Binder.ReportUseSiteDiagnosticForSynthesizedAttribute(context.Compilation,
WellKnownMember.System_ParamArrayAttribute__ctor,
declarationDiagnostics,
identifier.Parent.GetLocation());
}
ImmutableArray <CustomModifier> inModifiers = ParameterHelpers.ConditionallyCreateInModifiers(refKind, addRefReadOnlyModifier, context, declarationDiagnostics, syntax);
if (!inModifiers.IsDefaultOrEmpty)
{
return(new SourceComplexParameterSymbolWithCustomModifiersPrecedingByRef(
owner,
ordinal,
parameterType,
refKind,
inModifiers,
name,
locations,
syntax.GetReference(),
isParams,
isExtensionMethodThis));
}
if (!isParams &&
!isExtensionMethodThis &&
(syntax.Default == null) &&
(syntax.AttributeLists.Count == 0) &&
!owner.IsPartialMethod())
{
return(new SourceSimpleParameterSymbol(owner, parameterType, ordinal, refKind, name, isDiscard: false, locations));
}
return(new SourceComplexParameterSymbol(
owner,
ordinal,
parameterType,
refKind,
name,
locations,
syntax.GetReference(),
isParams,
isExtensionMethodThis));
}
