Allow (and ignore) booleans as children of components (#15)

* support booleans in Reconciler

CHANGELOG.md

@@ -1,7 +1,7 @@
 # Roact Changelog
 
 ## Current master
-* No changes
+* Support booleans in reconciliation ([#14](https://github.com/Roblox/roact/issues/14))
 
 ## 1.0.0 (TODO: Date)
 * Initial release

lib/Reconciler.lua

@@ -223,6 +223,10 @@ function Reconciler._reifyInternal(element, parent, key, context)
 			_reifiedChildren = reifiedChildren,
 			_rbx = target,
 		}
+	elseif typeof(element) == "boolean" then
+		-- Ignore booleans of either value
+		-- See https://github.com/Roblox/roact/issues/14
+		return nil
 	end
 
 	error(("Cannot reify invalid Roact element %q"):format(tostring(element)))

lib/Reconciler.spec.lua

@@ -0,0 +1,8 @@
+return function()
+	local Reconciler = require(script.Parent.Reconciler)
+
+	it("should reify booleans as nil", function()
+		local booleanReified = Reconciler.reify(false)
+		expect(booleanReified).to.never.be.ok()
+	end)
+end