internal LoweredDynamicOperation MakeDynamicOperation(
BoundExpression binderConstruction,
BoundExpression loweredReceiver,
RefKind receiverRefKind,
ImmutableArray <BoundExpression> loweredArguments,
ImmutableArray <RefKind> refKinds,
BoundExpression loweredRight,
TypeSymbol resultType)
{
Debug.Assert(!loweredArguments.IsDefault);
// get well-known types and members we need:
NamedTypeSymbol delegateTypeOverMethodTypeParameters = GetDelegateType(loweredReceiver, receiverRefKind, loweredArguments, refKinds, loweredRight, resultType);
NamedTypeSymbol callSiteTypeGeneric = _factory.WellKnownType(WellKnownType.System_Runtime_CompilerServices_CallSite_T);
MethodSymbol callSiteFactoryGeneric = _factory.WellKnownMethod(WellKnownMember.System_Runtime_CompilerServices_CallSite_T__Create);
FieldSymbol callSiteTargetFieldGeneric = (FieldSymbol)_factory.WellKnownMember(WellKnownMember.System_Runtime_CompilerServices_CallSite_T__Target);
MethodSymbol delegateInvoke;
if (binderConstruction == null ||
(object)delegateTypeOverMethodTypeParameters == null ||
delegateTypeOverMethodTypeParameters.IsErrorType() ||
(object)(delegateInvoke = delegateTypeOverMethodTypeParameters.DelegateInvokeMethod) == null ||
callSiteTypeGeneric.IsErrorType() ||
(object)callSiteFactoryGeneric == null ||
(object)callSiteTargetFieldGeneric == null)
{
// CS1969: One or more types required to compile a dynamic expression cannot be found.
// Dev11 reports it with source location for each dynamic operation, which results in many error messages.
// The diagnostic that names the specific missing type or member has already been reported.
_factory.Diagnostics.Add(ErrorCode.ERR_DynamicRequiredTypesMissing, NoLocation.Singleton);
return(LoweredDynamicOperation.Bad(loweredReceiver, loweredArguments, loweredRight, resultType));
}
if ((object)_currentDynamicCallSiteContainer == null)
{
_currentDynamicCallSiteContainer = CreateCallSiteContainer(_factory, _methodOrdinal);
}
var containerDef = (SynthesizedContainer)_currentDynamicCallSiteContainer.OriginalDefinition;
var methodToContainerTypeParametersMap = containerDef.TypeMap;
ImmutableArray <LocalSymbol> temps = MakeTempsForDiscardArguments(ref loweredArguments);
var callSiteType = callSiteTypeGeneric.Construct(new[] { delegateTypeOverMethodTypeParameters });
var callSiteFactoryMethod = callSiteFactoryGeneric.AsMember(callSiteType);
var callSiteTargetField = callSiteTargetFieldGeneric.AsMember(callSiteType);
var callSiteField = DefineCallSiteStorageSymbol(containerDef, delegateTypeOverMethodTypeParameters, methodToContainerTypeParametersMap);
var callSiteFieldAccess = _factory.Field(null, callSiteField);
var callSiteArguments = GetCallSiteArguments(callSiteFieldAccess, loweredReceiver, loweredArguments, loweredRight);
var nullCallSite = _factory.Null(callSiteField.Type);
var siteInitialization = _factory.Conditional(
_factory.ObjectEqual(callSiteFieldAccess, nullCallSite),
_factory.AssignmentExpression(callSiteFieldAccess, _factory.Call(null, callSiteFactoryMethod, binderConstruction)),
nullCallSite,
callSiteField.Type);
var siteInvocation = _factory.Call(
_factory.Field(callSiteFieldAccess, callSiteTargetField),
delegateInvoke,
callSiteArguments);
return(new LoweredDynamicOperation(_factory, siteInitialization, siteInvocation, resultType, temps));
}