Jacek Caban : jscript: Ignore an attempt to set visible host object identifier's value in ES5 mode.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: c7fc18a6c771d6796e6dee67c9616467ce697821
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=c7fc18a6c771d6796e6dee67c...

Author: Jacek Caban 
Date:   Mon Apr 12 15:47:51 2021 +0200

jscript: Ignore an attempt to set visible host object identifier's value in ES5 mode.

Signed-off-by: Jacek Caban 
Signed-off-by: Alexandre Julliard

---

dlls/jscript/engine.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dlls/jscript/engine.c b/dlls/jscript/engine.c
index 106fdabd81c..06b0fd673b3 100644
--- a/dlls/jscript/engine.c
+++ b/dlls/jscript/engine.c
@@ -1291,7 +1291,8 @@ static HRESULT interp_identifier_ref(script_ctx_t *ctx, BSTR identifier, unsigne
         exprval_set_disp_ref(&exprval, to_disp(script_obj), id);
     }

-    if(exprval.type == EXPRVAL_JSVAL || exprval.type == EXPRVAL_INVALID) {
+    if(exprval.type == EXPRVAL_INVALID ||
+       (exprval.type == EXPRVAL_JSVAL && ctx->version < SCRIPTLANGUAGEVERSION_ES5)) {
         WARN("invalid ref\n");
         exprval_release(&exprval);
         exprval_set_exception(&exprval, JS_E_OBJECT_EXPECTED);