Fix bug with switchC

[dakom]

discussion @ http://sodium.nz/t/lost-cells-in-switch/267

failing test @

sodium-typescript/src/tests/unit/NestedLift.spec.ts

Line 118 in e4d9f70

test('map + nested data/lift (no Transaction)', (done) => {

[dakom]

In the switch-fix branch, I copied the fix @jam40jeff added to the c# version. It's currently unmerged due to getting a "send was invoked before listeners were registered" error.

Any ideas?

The added code is essentially here:

sodium-typescript/src/lib/sodium/Transaction.ts

Line 57 in 7484c9f

if(this.finishedPriorityQueue) {

The line that triggers the error is here:

sodium-typescript/src/tests/unit/NestedLift.spec.ts

Line 135 in 7484c9f

.switchC(cTotal.map(data => data.cValue))

It seems to be thrown when the action is run here:

sodium-typescript/src/lib/sodium/Transaction.ts

Line 124 in 7484c9f

this.lastQ[i]();

[ziriax]

This reminds me of #45

[jam40jeff]

I believe the problem here is that Cell.apply calls Operational.Value. The initial value is usually returned later because of the spark stream in Operational.Value. However, when this is called during the "last" phase of the transaction, it attempts to send the value through right away, likely before the rest of the listeners have had a chance to register themselves. I'm not sure what can be done to work around this as I don't know enough about the TypeScript implementation.

[jam40jeff]

I committed a fix for this to the switch-fix branch.

[dakom]

Merged, thanks @jam40jeff !