bug about hump HOT 4 OPEN

signal.register("slot", function()
  print("Foo")
  signal.register("slot", function() print("Bar") end)
  print("Baz")
end)

signal.emit("slot")

Foo
Baz
Bar

timer.after(1, function()
  print("Foo")
  timer.after(1, function()
    print("Bar")
  end)
end)

timer.update(1) --> Foo
timer.update(1) --> Bar

signal = require("signal")

function register()
	signal.register(1, function()
	  print("Foo")
	  signal.register(1, function() print("Bar") end)
	  print("Baz")
	end)
end

for i=1, 10 do
	register()
	signal.emit(1)
	signal.clear(1)
	print("---")
end

luajit.exe test.lua
Foo
Baz -- <<--- I think this is right. Because Bar is register after emit.
---
Foo
Baz
---
Foo
Baz
---
Foo
Baz
---
Foo
Baz
Bar
---
Foo
Baz
Bar
---
Foo
Baz
---
Foo
Baz
---
Foo
Baz
Bar
---
Foo
Baz
Bar
---

lua5.1.exe test.lua
Foo
Baz
Bar
---
Foo
Baz
Bar
---
Foo
Baz
Bar
---
Foo
Baz
Bar
---
Foo
Baz
Bar
---
Foo
Baz
Bar
---
Foo
Baz
Bar
---
Foo
Baz
Bar
---
Foo
Baz
Bar
---
Foo
Baz
Bar
---

signal = require("signal")

function test1(mode)
	print("Foo")
	signal.register(1, function() print("Bar") end)
	print("Baz")
end

function register()
	signal.register(1, test1)
	signal.register(1, function() end)
	signal.register(1, function() end)
	signal.register(1, function() end)
end

for i=1,10 do
	register()
	signal.emit(1)
	signal.clear(1)
	print("---")
end

luajit.exe test.lua
Foo
Baz
Bar
Foo --<< call twice
Baz
---
Foo
Baz
Foo
Baz
---
Foo
Baz
Bar
---
Foo
Baz
Foo
Baz
---
Foo
Baz
Foo
Baz
---
Foo
Baz
Bar
Foo
Baz
---
Foo
Baz
Bar
Foo
Baz
---
Foo
Baz
Foo
Baz
---
Foo
Baz
Foo
Baz
---
Foo
Baz
Bar
Foo
Baz
---

lua5.1.exe test.lua
Foo
Baz
Bar
---
Foo --<<
Baz
---
Foo --<<
Baz
---
Foo
Baz
Bar
---
Foo --<<
Baz
---
Foo
Baz
Bar
---
Foo
Baz
---
Foo
Baz
Bar
---
Foo
Baz
Bar
---
Foo --<<
Baz
---

timer = require("timer")

function register()
	timer.after(0.5, function() 
		print("Foo")
		-- Bar total 1 second
		timer.after(0.5, function() print("Bar") end)
		print("Baz")
	end)
	timer.after(0.5, function() end)
	timer.after(0.5, function() end)
	timer.after(0.5, function() end)
end

for i=1,10 do
	register()
	timer.update(0.5)
	timer.clear()
	print("---")
end

luajit.exe test3.lua
Foo
Baz
Bar -- Bar 1 sec but call 0.5 sec
---
Foo
Baz
Bar
---
Foo
Baz
---
Foo
Baz
---
Foo
Baz
Bar
---
Foo
Baz
Bar
---
Foo
Baz
Bar
---
Foo
Baz
Bar
---
Foo
Baz
Bar
---
Foo
Baz
Bar
---

lua5.1.exe test3.lua
Foo
Baz
---
Foo
Baz
---
Foo
Baz
Bar
---
Foo
Baz
Bar
---
Foo
Baz
Bar
---
Foo
Baz
Bar
---
Foo
Baz
Bar
---
Foo
Baz
Bar
---
Foo
Baz
Bar
---
Foo
Baz
Bar
---