From 1f3c6f4534c6411313361697d98d1145a1f030fa Mon Sep 17 00:00:00 2001 From: Roberto Ierusalimschy Date: Tue, 15 Feb 2022 12:28:46 -0300 Subject: [PATCH] Bug: Lua can generate wrong code when _ENV is --- lua-5.4.3-tests/attrib.lua | 10 ++++++++++ src/lparser.c | 1 + 2 files changed, 11 insertions(+) diff --git a/lua-5.4.3-tests/attrib.lua b/lua-5.4.3-tests/attrib.lua index b1076c7..83821c0 100644 --- a/lua-5.4.3-tests/attrib.lua +++ b/lua-5.4.3-tests/attrib.lua @@ -434,6 +434,16 @@ a.aVeryLongName012345678901234567890123456789012345678901234567890123456789 == 10) +do + -- _ENV constant + local function foo () + local _ENV = 11 + X = "hi" + end + local st, msg = pcall(foo) + assert(not st and string.find(msg, "number")) +end + -- test of large float/integer indices diff --git a/src/lparser.c b/src/lparser.c index 284ef1f..0626833 100644 --- a/src/lparser.c +++ b/src/lparser.c @@ -457,6 +457,7 @@ static void singlevar (LexState *ls, expdesc *var) { expdesc key; singlevaraux(fs, ls->envn, var, 1); /* get environment variable */ lua_assert(var->k != VVOID); /* this one must exist */ + luaK_exp2anyregup(fs, var); /* but could be a constant */ codestring(&key, varname); /* key is variable name */ luaK_indexed(fs, var, &key); /* env[varname] */ } -- 1.8.3.1