public static Expression Instantiate(this TypeName typeName, Expression[] arguments, Context ctx, Optional <ObjectIdentifier> tagHash)
{
var obj = ctx.TryGetUxConstructorFunction(typeName).MatchWith(
some: ex => (Expression) new CallLambda(ex, arguments),
none: () => (Expression) new Instantiate(typeName, arguments));
if (!tagHash.HasValue)
{
return(obj);
}
return(ExpressionConverter.BytecodeFromSimpleLambda(() =>
ObjectTagRegistry.RegisterObjectTag(obj, tagHash.Value.ToString())));
}
IObservable <CoalesceEntry> ReifyProject(IObservable <ProjectBytecode> bytecode, IObservable <BytecodeUpdated> bytecodeUpdated, CoalesceEntryCache cache, IObservable <IEnumerable <AbsoluteFilePath> > assets)
{
int idx = 0;
var bytecodeUpdates = bytecodeUpdated.Select(m => m.ToCoalesceEntry(BytecodeUpdated.MessageType + (++idx)))
.Publish()
.RefCount();
var clearOldUpdates = bytecodeUpdates
.Buffer(bytecode)
.Select(
oldUpdates =>
{
var cachedUpdates = new List <CoalesceEntry>();
foreach (var oldUpdate in oldUpdates)
{
cachedUpdates.Add(new CoalesceEntry()
{
BlobData = Optional.None(),
CoalesceKey = oldUpdate.CoalesceKey
});
}
return(cachedUpdates);
})
.SelectMany(t => t);
var reify = bytecode.WithLatestFromBuffered(assets, (bc, ass) =>
{
var waitForDependencies = Task.WaitAll(new []
{
bc.Dependencies.Select(d => cache.HasEntry(d.ToString()))
.ToObservableEnumerable()
.FirstAsync()
.ToTask(),
ass.Select(d => cache.HasEntry(d.ToString()))
.ToObservableEnumerable()
.FirstAsync()
.ToTask()
}, TimeSpan.FromSeconds(60));
if (waitForDependencies == false)
{
throw new TimeoutException("Failed to load all assets dependencies.");
}
try
{
return(new BytecodeGenerated(
new ProjectBytecode(
reify: new Lambda(
Signature.Action(Variable.This),
Enumerable.Empty <BindVariable>(),
new[]
{
ExpressionConverter.BytecodeFromSimpleLambda(() => ObjectTagRegistry.Clear()),
new CallLambda(bc.Reify, new ReadVariable(Variable.This)),
}),
metadata: bc.Metadata,
dependencies: bc.Dependencies))
.ToCoalesceEntry(BytecodeGenerated.MessageType));
}
catch (Exception)
{
return(new BytecodeUpdated(
new Lambda(
Signature.Action(),
Enumerable.Empty <BindVariable>(),
Enumerable.Empty <Statement>()))
.ToCoalesceEntry("invalid-byte-code"));
}
})
.CatchAndRetry(TimeSpan.FromSeconds(15),
e =>
{
_logMessages.OnNext("Failed to refresh because: " + e.Message);
});
return(Observable.Merge(clearOldUpdates, reify, bytecodeUpdates));
}