internal AsyncMethodToStateMachineRewriter(
MethodSymbol method,
int methodOrdinal,
AsyncMethodBuilderMemberCollection asyncMethodBuilderMemberCollection,
SyntheticBoundNodeFactory F,
FieldSymbol state,
FieldSymbol builder,
IReadOnlySet<Symbol> hoistedVariables,
IReadOnlyDictionary<Symbol, CapturedSymbolReplacement> nonReusableLocalProxies,
SynthesizedLocalOrdinalsDispenser synthesizedLocalOrdinals,
VariableSlotAllocator slotAllocatorOpt,
int nextFreeHoistedLocalSlot,
DiagnosticBag diagnostics)
: base(F, method, state, hoistedVariables, nonReusableLocalProxies, synthesizedLocalOrdinals, slotAllocatorOpt, nextFreeHoistedLocalSlot, diagnostics, useFinalizerBookkeeping: false)
{
_method = method;
_asyncMethodBuilderMemberCollection = asyncMethodBuilderMemberCollection;
_asyncMethodBuilderField = builder;
_exprReturnLabel = F.GenerateLabel("exprReturn");
_exitLabel = F.GenerateLabel("exitLabel");
_exprRetValue = method.IsGenericTaskReturningAsync(F.Compilation)
? F.SynthesizedLocal(asyncMethodBuilderMemberCollection.ResultType, syntax: F.Syntax, kind: SynthesizedLocalKind.AsyncMethodReturnValue)
: null;
_dynamicFactory = new LoweredDynamicOperationFactory(F, methodOrdinal);
_awaiterFields = new Dictionary<TypeSymbol, FieldSymbol>(TypeSymbol.EqualsIgnoringDynamicComparer);
_nextAwaiterId = slotAllocatorOpt?.PreviousAwaiterSlotCount ?? 0;
}
internal AsyncMethodToClassRewriter(
MethodSymbol method,
AsyncMethodBuilderMemberCollection asyncMethodBuilderMemberCollection,
SyntheticBoundNodeFactory F,
FieldSymbol state,
FieldSymbol builder,
HashSet<Symbol> variablesCaptured,
Dictionary<Symbol, CapturedSymbolReplacement> initialProxies,
DiagnosticBag diagnostics,
bool generateDebugInfo)
: base(F, method, state, variablesCaptured, initialProxies, diagnostics,
useFinalizerBookkeeping: false,
generateDebugInfo: generateDebugInfo)
{
this.method = method;
this.asyncMethodBuilderMemberCollection = asyncMethodBuilderMemberCollection;
this.asyncMethodBuilderField = builder;
this.exprReturnLabel = F.GenerateLabel("exprReturn");
this.exitLabel = F.GenerateLabel("exitLabel");
this.exprRetValue = method.IsGenericTaskReturningAsync(F.Compilation)
? F.SynthesizedLocal(asyncMethodBuilderMemberCollection.ResultType, GeneratedNames.AsyncExprRetValueFieldName())
: null;
this.dynamicFactory = new LoweredDynamicOperationFactory(F);
}
internal AsyncMethodToClassRewriter(
MethodSymbol method,
AsyncMethodBuilderMemberCollection asyncMethodBuilderMemberCollection,
SyntheticBoundNodeFactory factory,
FieldSymbol state,
FieldSymbol builder,
Dictionary<Symbol, CapturedSymbol> localProxies,
DiagnosticBag diagnostics)
: base(factory, state, localProxies, diagnostics)
{
this.method = method;
this.asyncMethodBuilderMemberCollection = asyncMethodBuilderMemberCollection;
this.asyncMethodBuilderField = builder;
this.exprReturnLabel = factory.GenerateLabel("exprReturn");
this.exprRetValue = method.IsGenericTaskReturningAsync()
? factory.SynthesizedLocal(asyncMethodBuilderMemberCollection.ResultType, GeneratedNames.AsyncExprRetValueFieldName())
: null;
this.dynamicFactory = new LoweredDynamicOperationFactory(factory);
}
internal AsyncMethodToStateMachineRewriter(
MethodSymbol method,
AsyncMethodBuilderMemberCollection asyncMethodBuilderMemberCollection,
SyntheticBoundNodeFactory F,
FieldSymbol state,
FieldSymbol builder,
IReadOnlySet<Symbol> variablesCaptured,
IReadOnlyDictionary<Symbol, CapturedSymbolReplacement> nonReusableLocalProxies,
DiagnosticBag diagnostics)
: base(F, method, state, variablesCaptured, nonReusableLocalProxies, diagnostics, useFinalizerBookkeeping: false)
{
this.method = method;
this.asyncMethodBuilderMemberCollection = asyncMethodBuilderMemberCollection;
this.asyncMethodBuilderField = builder;
this.exprReturnLabel = F.GenerateLabel("exprReturn");
this.exitLabel = F.GenerateLabel("exitLabel");
this.exprRetValue = method.IsGenericTaskReturningAsync(F.Compilation)
? F.SynthesizedLocal(asyncMethodBuilderMemberCollection.ResultType, kind: SynthesizedLocalKind.AsyncMethodReturnValue)
: null;
this.dynamicFactory = new LoweredDynamicOperationFactory(F);
}
internal static bool TryCreate(SyntheticBoundNodeFactory F, MethodSymbol method, TypeMap typeMap, out AsyncMethodBuilderMemberCollection collection)
{
if (method.IsVoidReturningAsync())
{
return TryCreate(
F: F,
builderType: F.WellKnownType(WellKnownType.System_Runtime_CompilerServices_AsyncVoidMethodBuilder),
resultType: F.SpecialType(SpecialType.System_Void),
setException: WellKnownMember.System_Runtime_CompilerServices_AsyncVoidMethodBuilder__SetException,
setResult: WellKnownMember.System_Runtime_CompilerServices_AsyncVoidMethodBuilder__SetResult,
awaitOnCompleted: WellKnownMember.System_Runtime_CompilerServices_AsyncVoidMethodBuilder__AwaitOnCompleted,
awaitUnsafeOnCompleted: WellKnownMember.System_Runtime_CompilerServices_AsyncVoidMethodBuilder__AwaitUnsafeOnCompleted,
start: WellKnownMember.System_Runtime_CompilerServices_AsyncVoidMethodBuilder__Start_T,
setStateMachine: WellKnownMember.System_Runtime_CompilerServices_AsyncVoidMethodBuilder__SetStateMachine,
task: null,
collection: out collection);
}
if (method.IsTaskReturningAsync(F.Compilation))
{
NamedTypeSymbol builderType = F.WellKnownType(WellKnownType.System_Runtime_CompilerServices_AsyncTaskMethodBuilder);
PropertySymbol task;
if (!TryGetWellKnownPropertyAsMember(F, WellKnownMember.System_Runtime_CompilerServices_AsyncTaskMethodBuilder__Task, builderType, out task))
{
collection = default(AsyncMethodBuilderMemberCollection);
return false;
}
return TryCreate(
F: F,
builderType: F.WellKnownType(WellKnownType.System_Runtime_CompilerServices_AsyncTaskMethodBuilder),
resultType: F.SpecialType(SpecialType.System_Void),
setException: WellKnownMember.System_Runtime_CompilerServices_AsyncTaskMethodBuilder__SetException,
setResult: WellKnownMember.System_Runtime_CompilerServices_AsyncTaskMethodBuilder__SetResult,
awaitOnCompleted: WellKnownMember.System_Runtime_CompilerServices_AsyncTaskMethodBuilder__AwaitOnCompleted,
awaitUnsafeOnCompleted: WellKnownMember.System_Runtime_CompilerServices_AsyncTaskMethodBuilder__AwaitUnsafeOnCompleted,
start: WellKnownMember.System_Runtime_CompilerServices_AsyncTaskMethodBuilder__Start_T,
setStateMachine: WellKnownMember.System_Runtime_CompilerServices_AsyncTaskMethodBuilder__SetStateMachine,
task: task,
collection: out collection);
}
if (method.IsGenericTaskReturningAsync(F.Compilation))
{
TypeSymbol resultType = method.ReturnType.GetMemberTypeArgumentsNoUseSiteDiagnostics().Single();
if (resultType.IsDynamic())
{
resultType = F.SpecialType(SpecialType.System_Object);
}
if (typeMap != null)
{
resultType = typeMap.SubstituteType(resultType).Type;
}
NamedTypeSymbol builderType = F.WellKnownType(WellKnownType.System_Runtime_CompilerServices_AsyncTaskMethodBuilder_T).Construct(resultType);
PropertySymbol task;
if (!TryGetWellKnownPropertyAsMember(F, WellKnownMember.System_Runtime_CompilerServices_AsyncTaskMethodBuilder_T__Task, builderType, out task))
{
collection = default(AsyncMethodBuilderMemberCollection);
return false;
}
return TryCreate(
F: F,
builderType: builderType,
resultType: resultType,
setException: WellKnownMember.System_Runtime_CompilerServices_AsyncTaskMethodBuilder_T__SetException,
setResult: WellKnownMember.System_Runtime_CompilerServices_AsyncTaskMethodBuilder_T__SetResult,
awaitOnCompleted: WellKnownMember.System_Runtime_CompilerServices_AsyncTaskMethodBuilder_T__AwaitOnCompleted,
awaitUnsafeOnCompleted: WellKnownMember.System_Runtime_CompilerServices_AsyncTaskMethodBuilder_T__AwaitUnsafeOnCompleted,
start: WellKnownMember.System_Runtime_CompilerServices_AsyncTaskMethodBuilder_T__Start_T,
setStateMachine: WellKnownMember.System_Runtime_CompilerServices_AsyncTaskMethodBuilder_T__SetStateMachine,
task: task,
collection: out collection);
}
throw ExceptionUtilities.UnexpectedValue(method);
}
