jscript: Handle non-JS objects in Object.getPrototypeOf.

Signed-off-by: Gabriel Ivăncescu <gabrielopcode@gmail.com> Signed-off-by: Jacek Caban <jacek@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

jscript: Handle non-JS objects in Object.getPrototypeOf.
f8583183 · Gabriel Ivăncescu · Alexandre Julliard · b4175eeb · f8583183 · f8583183
Commit f8583183 authored Mar 25, 2022 by Gabriel Ivăncescu Committed by Alexandre Julliard Mar 25, 2022
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Showing with 3 additions and 6 deletions

object.c dlls/jscript/object.c +1 -6

es5.js dlls/mshtml/tests/es5.js +2 -0

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--- a/dlls/jscript/object.c
+++ b/dlls/jscript/object.c
@@ -850,13 +850,8 @@ static HRESULT Object_getPrototypeOf(script_ctx_t *ctx, jsval_t vthis, WORD flag
    TRACE("(%s)\n", debugstr_jsval(argv[0]));

    obj = to_jsdisp(get_object(argv[0]));
-    if(!obj) {
-        FIXME("Non-JS object\n");
-        return E_NOTIMPL;
-    }
-
    if(r)
-        *r = obj->prototype
+        *r = obj && obj->prototype
            ? jsval_obj(jsdisp_addref(obj->prototype))
            : jsval_null();
    return S_OK;

--- a/dlls/mshtml/tests/es5.js
+++ b/dlls/mshtml/tests/es5.js
@@ -803,6 +803,8 @@ sync_test("getPrototypeOf", function() {
    obj = Object.create(null);
    ok(!("toString" in obj), "toString is in obj");
    ok(Object.getPrototypeOf(obj) === null, "Object.getPrototypeOf(obj) = " + Object.getPrototypeOf(obj));
+
+    ok(Object.getPrototypeOf(external) === null, "Object.getPrototypeOf(non-JS obj) = " + Object.getPrototypeOf(external));
 });

 sync_test("toString", function() {