From 3cb56ad565fca7408eaaacb74fe8ccfcd92729e1 Mon Sep 17 00:00:00 2001
From: Benoit Giannangeli <giann008@gmail.com>
Date: Thu, 25 May 2017 15:11:21 +0200
Subject: ar.what was not a lua string

---
 src/ldebug.js                            |  2 +-
 tests/test-suite/inprogress/coroutine.js | 36 ++++++++++++++++++++++++++++++++
 2 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/src/ldebug.js b/src/ldebug.js
index 5749951..0f387af 100644
--- a/src/ldebug.js
+++ b/src/ldebug.js
@@ -167,7 +167,7 @@ const funcinfo = function(ar, cl) {
         ar.source = defs.to_luastring("=[JS]", true);
         ar.linedefined = -1;
         ar.lastlinedefined = -1;
-        ar.what = "J";
+        ar.what = ["J".charCodeAt(0)];
     } else {
         let p = cl.p;
         ar.source = p.source ? p.source.getstr() : defs.to_luastring("=?", true);
diff --git a/tests/test-suite/inprogress/coroutine.js b/tests/test-suite/inprogress/coroutine.js
index 93be6df..8bf2664 100644
--- a/tests/test-suite/inprogress/coroutine.js
+++ b/tests/test-suite/inprogress/coroutine.js
@@ -1161,6 +1161,42 @@ test("[test-suite] coroutine: testing debug library on a coroutine suspended ins
 });
 
 
+test("[test-suite] coroutine: testing debug library on last function in a suspended coroutine", function (t) {
+    let luaCode = `
+        do
+          -- testing debug library on last function in a suspended coroutine
+          -- (bug in 5.2/5.3)
+          local c = coroutine.create(function () T.testC("yield 1", 10, 20) end)
+          local a, b = coroutine.resume(c)
+          assert(a and b == 20)
+          assert(debug.getinfo(c, 0).linedefined == -1)
+          a, b = debug.getlocal(c, 0, 2)
+          assert(b == 10)
+        end
+    `, L;
+    
+    t.plan(2);
+
+    t.doesNotThrow(function () {
+
+        L = lauxlib.luaL_newstate();
+
+        lualib.luaL_openlibs(L);
+
+        ltests.luaopen_tests(L);
+
+        lauxlib.luaL_loadstring(L, lua.to_luastring(luaCode));
+
+    }, "Lua program loaded without error");
+
+    t.doesNotThrow(function () {
+
+        lua.lua_call(L, 0, -1);
+
+    }, "Lua program ran without error");
+});
+
+
 test("[test-suite] coroutine: tests for coroutine API", { skip: true }, function (t) {
     t.comment("TODO");
 });
-- 
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