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feat(lua): print source locations of lua callbacks (#19597)

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Co-authored-by: ii14 <ii14@users.noreply.github.com>
This commit is contained in:
ii14
2022-08-03 14:41:17 +02:00
committed by GitHub
parent c57e133e50
commit 3df8d9b8c5
8 changed files with 66 additions and 21 deletions
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31
src/nvim/lua/executor.c
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@@ -2076,3 +2076,34 @@ int nlua_do_ucmd(ucmd_T *cmd, exarg_T *eap, bool preview)
return retv;
}
/// String representation of a Lua function reference
///
/// @return Allocated string
char *nlua_funcref_str(LuaRef ref)
{
lua_State *const lstate = global_lstate;
StringBuilder str = KV_INITIAL_VALUE;
kv_resize(str, 16);
if (!lua_checkstack(lstate, 1)) {
goto plain;
}
nlua_pushref(lstate, ref);
if (!lua_isfunction(lstate, -1)) {
lua_pop(lstate, 1);
goto plain;
}
lua_Debug ar;
if (lua_getinfo(lstate, ">S", &ar) && *ar.source == '@' && ar.linedefined >= 0) {
char *src = home_replace_save(NULL, ar.source + 1);
kv_printf(str, "<Lua %d: %s:%d>", ref, src, ar.linedefined);
xfree(src);
return str.items;
}
plain:
kv_printf(str, "<Lua %d>", ref);
return str.items;
}