C++ (Cpp) AsmJSModule::charsBegin примеры использования

Пример #1

static bool
HandleDynamicLinkFailure(JSContext *cx, CallArgs args, AsmJSModule &module, HandlePropertyName name)
{
    if (cx->isExceptionPending())
        return false;

    uint32_t begin = module.charsBegin();
    uint32_t end = module.charsEnd();
    Rooted<JSStableString*> src(cx, module.scriptSource()->substring(cx, begin, end));
    if (!src)
        return false;

    RootedFunction fun(cx, NewFunction(cx, NullPtr(), nullptr, 0, JSFunction::INTERPRETED,
                                       cx->global(), name, JSFunction::FinalizeKind,
                                       TenuredObject));
    if (!fun)
        return false;

    AutoNameVector formals(cx);
    formals.reserve(3);
    if (module.globalArgumentName())
        formals.infallibleAppend(module.globalArgumentName());
    if (module.importArgumentName())
        formals.infallibleAppend(module.importArgumentName());
    if (module.bufferArgumentName())
        formals.infallibleAppend(module.bufferArgumentName());

    CompileOptions options(cx);
    options.setPrincipals(cx->compartment()->principals)
           .setOriginPrincipals(module.scriptSource()->originPrincipals())
           .setCompileAndGo(false)
           .setNoScriptRval(false);

    if (!frontend::CompileFunctionBody(cx, &fun, options, formals, src->chars().get(), end - begin))
        return false;

    // Call the function we just recompiled.

    unsigned argc = args.length();

    InvokeArgs args2(cx);
    if (!args2.init(argc))
        return false;

    args2.setCallee(ObjectValue(*fun));
    args2.setThis(args.thisv());
    for (unsigned i = 0; i < argc; i++)
        args2[i].set(args[i]);

    if (!Invoke(cx, args2))
        return false;

    args.rval().set(args2.rval());

    return true;
}