let tgt = {}; Services.prefs.setBoolPref("security.allow_eval_with_system_principal", true); registerCleanupFunction(() => { Services.prefs.clearUserPref("security.allow_eval_with_system_principal"); }); Services.scriptloader.loadSubScript("resource://test/environment_script.js", tgt); var bound = ""; var tgt_bound = ""; // Check global bindings try { void vu; bound += "vu,"; } catch (e) {} try { void vq; bound += "vq,"; } catch (e) {} try { void vl; bound += "vl,"; } catch (e) {} try { void gt; bound += "gt,"; } catch (e) {} try { void ed; bound += "ed,"; } catch (e) {} try { void ei; bound += "ei,"; } catch (e) {} try { void fo; bound += "fo,"; } catch (e) {} try { void fi; bound += "fi,"; } catch (e) {} try { void fd; bound += "fd,"; } catch (e) {} // Check target bindings for (var name of ["vu", "vq", "vl", "gt", "ed", "ei", "fo", "fi", "fd"]) if (tgt.hasOwnProperty(name)) tgt_bound += name + ","; // Expected subscript loader behavior is as follows: // - Qualified vars and |this| access occur on target object // - Lexical vars occur on ExtensibleLexicalEnvironment of target object // - Bareword assignments and global |this| access occur on caller's global if (bound != "vu,ei,fo,fi,") throw new Error("Unexpected global binding set - " + bound); if (tgt_bound != "vq,gt,ed,fd,") throw new Error("Unexpected target binding set - " + tgt_bound);