Merge pull request #1 from MasonProtter/patch-1

Fixes to PR updating Observables.

Project.toml

@@ -1,7 +1,7 @@
 name = "WebIO"
 uuid = "0f1e0344-ec1d-5b48-a673-e5cf874b6c29"
 license = "MIT"
-version = "0.8.18"
+version = "0.8.19"
 
 [deps]
 AssetRegistry = "bf4720bc-e11a-5d0c-854e-bdca1663c893"
@@ -24,7 +24,7 @@ AssetRegistry = "0.1.0"
 FunctionalCollections = "0.5.0"
 JSExpr = "0.5"
 JSON = "0.18, 0.19, 0.20, 0.21"
-Observables = "0.4, 0.5"
+Observables = "0.5"
 Requires = "0.4.4, 0.5, 1.0.0"
 WebSockets = "1.5.0"
 Widgets = "0.6.2"

src/scope.jl

@@ -242,7 +242,7 @@ function JSON.lower(scope::Scope)
         if sync === nothing
             # by default, we sync if there are any listeners
             # other than the JS back edge
-            sync = any(f-> !isa(f, SyncCallback), listeners(ob))
+            sync = any(((_, f),) -> !isa(f, SyncCallback), listeners(ob))
         end
         obs_dict[k] = Dict(
             "sync" => sync,
@@ -378,7 +378,7 @@ end
 function ensure_sync(ctx, key)
     ob = ctx.observs[key][1]
     # have at most one synchronizing handler per observable
-    if !any(x->isa(x, SyncCallback) && x.ctx==ctx, listeners(ob))
+    if !any(((_, x),) ->isa(x, SyncCallback) && x.ctx==ctx, listeners(ob))
         f = SyncCallback(ctx, (msg) -> send_update_observable(ctx, key, msg))
         on(SyncCallback(ctx, f), ob)
     end