src/third_party/mozjs-45/js/src/jsapi-tests/testDebugger.cpp

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 * vim: set ts=8 sts=4 et sw=4 tw=99:
 */
/* 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 "jscntxt.h"

#include "jsapi-tests/tests.h"

using namespace js;

BEGIN_TEST(testDebugger_newScriptHook)
{
    // Test that top-level indirect eval fires the newScript hook.
    CHECK(JS_DefineDebuggerObject(cx, global));
    JS::RootedObject g(cx, JS_NewGlobalObject(cx, getGlobalClass(), nullptr, JS::FireOnNewGlobalHook));
    CHECK(g);
    {
        JSAutoCompartment ae(cx, g);
        CHECK(JS_InitStandardClasses(cx, g));
    }

    JS::RootedObject gWrapper(cx, g);
    CHECK(JS_WrapObject(cx, &gWrapper));
    JS::RootedValue v(cx, JS::ObjectValue(*gWrapper));
    CHECK(JS_SetProperty(cx, global, "g", v));

    EXEC("var dbg = Debugger(g);\n"
         "var hits = 0;\n"
         "dbg.onNewScript = function (s) {\n"
         "    hits += Number(s instanceof Debugger.Script);\n"
         "};\n");

    // Since g is a debuggee, g.eval should trigger newScript, regardless of
    // what scope object we use to enter the compartment.
    //
    // Scripts are associated with the global where they're compiled, so we
    // deliver them only to debuggers that are watching that particular global.
    //
    return testIndirectEval(g, "Math.abs(0)");
}

bool testIndirectEval(JS::HandleObject scope, const char* code)
{
    EXEC("hits = 0;");

    {
        JSAutoCompartment ae(cx, scope);
        JSString* codestr = JS_NewStringCopyZ(cx, code);
        CHECK(codestr);
        JS::RootedValue arg(cx, JS::StringValue(codestr));
        JS::RootedValue v(cx);
        CHECK(JS_CallFunctionName(cx, scope, "eval", HandleValueArray(arg), &v));
    }

    JS::RootedValue hitsv(cx);
    EVAL("hits", &hitsv);
    CHECK(hitsv.isInt32(1));
    return true;
}
END_TEST(testDebugger_newScriptHook)