From d7d756e30680bcff036118b47ac45b740e020ea2 Mon Sep 17 00:00:00 2001
From: Benoit Germain <benoit.germain@ubisoft.com>
Date: Thu, 26 Jun 2025 09:18:54 +0200
Subject: Preparation for lane:close() and correct to-be-closed variables

* lane:join() can no longer be used to read yielded values
* same with lane indexing
* stub for lane:close(), similar to coroutine.close() (not implemented yet)
* preparing tests for to-be-closed variables in yielded coroutine lanes
* yielded lanes unlock and terminate properly at Lanes shutdown
---
 unit_tests/scripts/coro/basics.lua | 99 --------------------------------------
 1 file changed, 99 deletions(-)
 delete mode 100644 unit_tests/scripts/coro/basics.lua

(limited to 'unit_tests/scripts/coro/basics.lua')

diff --git a/unit_tests/scripts/coro/basics.lua b/unit_tests/scripts/coro/basics.lua
deleted file mode 100644
index c0b7a36..0000000
--- a/unit_tests/scripts/coro/basics.lua
+++ /dev/null
@@ -1,99 +0,0 @@
-local lanes = require "lanes"
-
-local fixture = require "fixture"
-lanes.finally(fixture.throwing_finalizer)
-
-local utils = lanes.require "_utils"
-local PRINT = utils.MAKE_PRINT()
-
-if true then
-    -- a lane body that just returns some value
-    local lane = function(msg_)
-        local utils = lanes.require "_utils"
-        local PRINT = utils.MAKE_PRINT()
-        PRINT "In lane"
-        assert(msg_ == "hi")
-        return "bye"
-    end
-
-    -- the generator
-    local g1 = lanes.coro("*", {name = "auto"}, lane)
-
-    -- launch lane
-    local h1 = g1("hi")
-
-    local r = h1[1]
-    assert(r == "bye")
-end
-
--- a lane coroutine that yields back what got in, one element at a time
-local yielder = function(...)
-    local utils = lanes.require "_utils"
-    local PRINT = utils.MAKE_PRINT()
-    PRINT "In lane"
-    for _i  = 1, select('#', ...) do
-        local _val = select(_i, ...)
-        PRINT("yielding #", _i, _val)
-        local _ack = coroutine.yield(_val)
-        assert(_ack == _i)
-    end
-    return "done!"
-end
-
-if true then
-    -- if we start a non-coroutine lane with a yielding function, we should get an error, right?
-    local fun_g = lanes.gen("*", { name = 'auto' }, yielder)
-    local h = fun_g("hello", "world", "!")
-    local err, status, stack = h:join()
-    PRINT(err, status, stack)
-    -- the actual error message is not the same for Lua 5.1
-    -- of course, it also has to be different for LuaJIT as well
-    -- also, LuaJIT prepends a file:line to the actual error message, which Lua5.1 does not.
-    local msgs = {
-        ["Lua 5.1"] = jit and "attempt to yield across C-call boundary" or "attempt to yield across metamethod/C-call boundary",
-        ["Lua 5.2"] = "attempt to yield from outside a coroutine",
-        ["Lua 5.3"] = "attempt to yield from outside a coroutine",
-        ["Lua 5.4"] = "attempt to yield from outside a coroutine"
-    }
-    local expected_msg = msgs[_VERSION]
-    PRINT("expected_msg = " .. expected_msg)
-    assert(err == nil and string.find(status, expected_msg, 1, true) and stack == nil, "status = " .. status)
-end
-
--- the generator
-local coro_g = lanes.coro("*", {name = "auto"}, yielder)
-
-if true then
-    -- launch coroutine lane
-    local h2 = coro_g("hello", "world", "!")
-    -- read the yielded values, sending back the expected index
-    assert(h2:resume(1) == "hello")
-    assert(h2:resume(2) == "world")
-    assert(h2:resume(3) == "!")
-    -- the lane return value is available as usual
-    local r = h2[1]
-    assert(r == "done!")
-end
-
-if true then
-    -- another coroutine lane
-    local h3 = coro_g("hello", "world", "!")
-
-    -- yielded values are available as regular return values
-    assert(h3[1] == "hello" and h3.status == "suspended")
-    -- since we consumed the returned values, they should not be here when we resume
-    assert(h3:resume(1) == nil)
-
-    -- similarly, we can get them with join()
-    local r3, ret3 = h3:join()
-    assert(r3 == true and ret3 == "world" and h3.status == "suspended")
-    -- since we consumed the returned values, they should not be here when we resume
-    assert(h3:resume(2) == nil)
-
-    -- the rest should work as usual
-    assert(h3:resume(3) == "!")
-
-    -- the final return value of the lane body remains to be read
-    local r3, ret3 = h3:join()
-    assert(r3 == true and ret3 == "done!" and h3.status == "done")
-end
-- 
cgit v1.2.3-55-g6feb