From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- .../jit-test/tests/debug/Environment-identity-04.js | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 js/src/jit-test/tests/debug/Environment-identity-04.js (limited to 'js/src/jit-test/tests/debug/Environment-identity-04.js') diff --git a/js/src/jit-test/tests/debug/Environment-identity-04.js b/js/src/jit-test/tests/debug/Environment-identity-04.js new file mode 100644 index 000000000..bf9b4086d --- /dev/null +++ b/js/src/jit-test/tests/debug/Environment-identity-04.js @@ -0,0 +1,19 @@ +// Observably different visits to the same with-statement produce distinct Environments. + +var g = newGlobal(); +g.eval("function f(a, obj) { with (obj) return function () { return a; }; }"); +var dbg = Debugger(g); +var hits = 0; +dbg.onDebuggerStatement = function (frame) { + // Even though the two visits to the with-statement have the same target + // object, Math, the environments are observably different. + var f1 = frame.eval("f(1, Math);").return; + var f2 = frame.eval("f(2, Math);").return; + assertEq(f1.environment !== f2.environment, true); + assertEq(f1.object, f2.object); + assertEq(f1.call().return, 1); + assertEq(f2.call().return, 2); + hits++; +}; +g.eval("debugger;"); +assertEq(hits, 1); -- cgit v1.2.3