Add m-esr52 at 52.6.0

1 files changed, 161 insertions, 0 deletions

diff --git a/js/src/jsapi-tests/testCloneScript.cpp b/js/src/jsapi-tests/testCloneScript.cpp
new file mode 100644
index 000000000..c12831fcb
--- /dev/null
+++ b/js/src/jsapi-tests/testCloneScript.cpp
@@ -0,0 +1,161 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: set ts=8 sts=4 et sw=4 tw=99:
+ *
+ * Test script cloning.
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "jsfriendapi.h"
+#include "jsapi-tests/tests.h"
+
+BEGIN_TEST(test_cloneScript)
+{
+    JS::RootedObject A(cx, createGlobal());
+    JS::RootedObject B(cx, createGlobal());
+
+    CHECK(A);
+    CHECK(B);
+
+    const char* source =
+        "var i = 0;\n"
+        "var sum = 0;\n"
+        "while (i < 10) {\n"
+        "    sum += i;\n"
+        "    ++i;\n"
+        "}\n"
+        "(sum);\n";
+
+    JS::RootedObject obj(cx);
+
+    // compile for A
+    {
+        JSAutoCompartment a(cx, A);
+        JS::RootedFunction fun(cx);
+        JS::CompileOptions options(cx);
+        options.setFileAndLine(__FILE__, 1);
+        JS::AutoObjectVector emptyScopeChain(cx);
+        CHECK(JS::CompileFunction(cx, emptyScopeChain, options, "f", 0, nullptr,
+                                  source, strlen(source), &fun));
+        CHECK(obj = JS_GetFunctionObject(fun));
+    }
+
+    // clone into B
+    {
+        JSAutoCompartment b(cx, B);
+        CHECK(JS::CloneFunctionObject(cx, obj));
+    }
+
+    return true;
+}
+END_TEST(test_cloneScript)
+
+struct Principals final : public JSPrincipals
+{
+  public:
+    Principals()
+    {
+        refcount = 0;
+    }
+
+    bool write(JSContext* cx, JSStructuredCloneWriter* writer) override {
+        MOZ_ASSERT(false, "not imlemented");
+        return false;
+    }
+};
+
+class AutoDropPrincipals
+{
+    JSContext* cx;
+    JSPrincipals* principals;
+
+  public:
+    AutoDropPrincipals(JSContext* cx, JSPrincipals* principals)
+      : cx(cx), principals(principals)
+    {
+        JS_HoldPrincipals(principals);
+    }
+
+    ~AutoDropPrincipals()
+    {
+        JS_DropPrincipals(cx, principals);
+    }
+};
+
+static void
+DestroyPrincipals(JSPrincipals* principals)
+{
+    auto p = static_cast<Principals*>(principals);
+    delete p;
+}
+
+BEGIN_TEST(test_cloneScriptWithPrincipals)
+{
+    JS_InitDestroyPrincipalsCallback(cx, DestroyPrincipals);
+
+    JSPrincipals* principalsA = new Principals();
+    AutoDropPrincipals dropA(cx, principalsA);
+    JSPrincipals* principalsB = new Principals();
+    AutoDropPrincipals dropB(cx, principalsB);
+
+    JS::RootedObject A(cx, createGlobal(principalsA));
+    JS::RootedObject B(cx, createGlobal(principalsB));
+
+    CHECK(A);
+    CHECK(B);
+
+    const char* argnames[] = { "arg" };
+    const char* source = "return function() { return arg; }";
+
+    JS::RootedObject obj(cx);
+
+    // Compile in A
+    {
+        JSAutoCompartment a(cx, A);
+        JS::CompileOptions options(cx);
+        options.setFileAndLine(__FILE__, 1);
+        JS::RootedFunction fun(cx);
+        JS::AutoObjectVector emptyScopeChain(cx);
+        JS::CompileFunction(cx, emptyScopeChain, options, "f",
+                           mozilla::ArrayLength(argnames), argnames, source,
+                           strlen(source), &fun);
+        CHECK(fun);
+
+        JSScript* script;
+        CHECK(script = JS_GetFunctionScript(cx, fun));
+
+        CHECK(JS_GetScriptPrincipals(script) == principalsA);
+        CHECK(obj = JS_GetFunctionObject(fun));
+    }
+
+    // Clone into B
+    {
+        JSAutoCompartment b(cx, B);
+        JS::RootedObject cloned(cx);
+        CHECK(cloned = JS::CloneFunctionObject(cx, obj));
+
+        JS::RootedFunction fun(cx);
+        JS::RootedValue clonedValue(cx, JS::ObjectValue(*cloned));
+        CHECK(fun = JS_ValueToFunction(cx, clonedValue));
+
+        JSScript* script;
+        CHECK(script = JS_GetFunctionScript(cx, fun));
+
+        CHECK(JS_GetScriptPrincipals(script) == principalsB);
+
+        JS::RootedValue v(cx);
+        JS::RootedValue arg(cx, JS::Int32Value(1));
+        CHECK(JS_CallFunctionValue(cx, B, clonedValue, JS::HandleValueArray(arg), &v));
+        CHECK(v.isObject());
+
+        JSObject* funobj = &v.toObject();
+        CHECK(JS_ObjectIsFunction(cx, funobj));
+        CHECK(fun = JS_ValueToFunction(cx, v));
+        CHECK(script = JS_GetFunctionScript(cx, fun));
+        CHECK(JS_GetScriptPrincipals(script) == principalsB);
+    }
+
+    return true;
+}
+END_TEST(test_cloneScriptWithPrincipals)