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local _anon_func_0 = function(obj)
if obj ~= nil then
return obj.value
end
return nil
end
local _anon_func_1 = function(obj)
if obj ~= nil then
return obj.value
end
return nil
end
local _anon_func_2 = function(obj)
if obj ~= nil then
return obj.x
end
return nil
end
local _anon_func_3 = function(obj)
if obj ~= nil then
return obj.y
end
return nil
end
return describe("existential", function()
it("should handle ?. with existing object", function()
local obj = {
value = 42
}
local result
if obj ~= nil then
result = obj.value
end
return assert.same(result, 42)
end)
it("should handle ?. with nil object", function()
local obj = nil
local result
if obj ~= nil then
result = obj.value
end
return assert.same(result, nil)
end)
it("should chain ?. calls", function()
local obj = {
nested = {
value = 100
}
}
local result
if obj ~= nil then
do
local _obj_0 = obj.nested
if _obj_0 ~= nil then
result = _obj_0.value
end
end
end
return assert.same(result, 100)
end)
it("should return nil in chain with nil", function()
local obj = nil
local result
if obj ~= nil then
do
local _obj_0 = obj.nested
if _obj_0 ~= nil then
result = _obj_0.value
end
end
end
return assert.same(result, nil)
end)
it("should handle ?. with method call", function()
local obj = {
func = function()
return "result"
end
}
local result
if obj ~= nil then
result = obj.func()
end
return assert.same(result, "result")
end)
it("should handle ? on table index", function()
local tb = {
[1] = "first"
}
local result
if tb ~= nil then
result = tb[1]
end
return assert.same(result, "first")
end)
it("should return nil for missing index", function()
local tb = { }
local result
if tb ~= nil then
result = tb[99]
end
return assert.same(result, nil)
end)
it("should work with ? in if condition", function()
local obj = {
value = 5
}
local result
if _anon_func_0(obj) then
result = "exists"
end
return assert.same(result, "exists")
end)
it("should combine ?. with and/or", function()
local obj = {
value = 10
}
local result = _anon_func_1(obj) and 20 or 30
return assert.same(result, 20)
end)
it("should handle with? safely", function()
local obj = {
x = 1,
y = 2
}
local sum = _anon_func_2(obj) + _anon_func_3(obj)
return assert.same(sum, 3)
end)
it("should return nil with with? on nil", function()
local obj = nil
local result
if obj ~= nil then
result = obj.x
end
return assert.same(result, nil)
end)
it("should handle false value correctly", function()
local obj = {
value = false
}
local result
if obj ~= nil then
result = obj.value
end
return assert.same(result, false)
end)
it("should handle 0 value correctly", function()
local obj = {
value = 0
}
local result
if obj ~= nil then
result = obj.value
end
return assert.same(result, 0)
end)
it("should handle empty string correctly", function()
local obj = {
value = ""
}
local result
if obj ~= nil then
result = obj.value
end
return assert.same(result, "")
end)
it("should handle empty table correctly", function()
local obj = {
value = { }
}
local result
if obj ~= nil then
result = obj.value
end
return assert.same(type(result), "table")
end)
it("should work with deep chains", function()
local obj = {
a = {
b = {
c = {
d = "deep"
}
}
}
}
local result
if obj ~= nil then
do
local _obj_0 = obj.a
if _obj_0 ~= nil then
do
local _obj_1 = _obj_0.b
if _obj_1 ~= nil then
do
local _obj_2 = _obj_1.c
if _obj_2 ~= nil then
result = _obj_2.d
end
end
end
end
end
end
end
return assert.same(result, "deep")
end)
it("should break chain on first nil", function()
local obj = {
a = nil
}
local result
if obj ~= nil then
do
local _obj_0 = obj.a
if _obj_0 ~= nil then
do
local _obj_1 = _obj_0.b
if _obj_1 ~= nil then
result = _obj_1.c
end
end
end
end
end
return assert.same(result, nil)
end)
it("should handle ?. with string methods", function()
local s = "hello"
local result
if s ~= nil then
result = s:upper()
end
return assert.same(result, "HELLO")
end)
return it("should handle ?. with nil string", function()
local s = nil
local result
if s ~= nil then
result = s:upper()
end
return assert.same(result, nil)
end)
end)
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