ScriptHost is collocated with ScriptRuntime in the same app-domain. The host can implement a derived class to consume some notifications and/or customize operations like TryGetSourceUnit,ResolveSourceUnit, etc. The areguments to the the constructor of the derived class are specified in ScriptRuntimeSetup instance that enters ScriptRuntime initialization. If the host is remote with respect to DLR (i.e. also with respect to ScriptHost) and needs to access objects living in its app-domain it can pass MarshalByRefObject as an argument to its ScriptHost subclass constructor.
Inheritance: System.Object
ScriptHost Class Documentation
Esempio n. 1
0
        /// <summary>
        /// Creates ScriptRuntime in the current app-domain and initialized according to the the specified settings.
        /// Creates an instance of host class specified in the setup and associates it with the created runtime.
        /// Both Runtime and ScriptHost are collocated in the current app-domain.
        /// </summary>
        public ScriptRuntime(ScriptRuntimeSetup setup)
        {
            ContractUtils.RequiresNotNull(setup, "setup");

            // Do this first, so we detect configuration errors immediately
            DlrConfiguration config = setup.ToConfiguration();
            _setup = setup;

            try {
                _host = (ScriptHost)Activator.CreateInstance(setup.HostType, setup.HostArguments.ToArray<object>());
            } catch (TargetInvocationException e) {
                throw new InvalidImplementationException(Strings.InvalidCtorImplementation(setup.HostType, e.InnerException.Message), e.InnerException);
            } catch (Exception e) {
                throw new InvalidImplementationException(Strings.InvalidCtorImplementation(setup.HostType, e.Message), e);
            }

            ScriptHostProxy hostProxy = new ScriptHostProxy(_host);

            _manager = new ScriptDomainManager(hostProxy, config);
            _invariantContext = new InvariantContext(_manager);

            _io = new ScriptIO(_manager.SharedIO);
            _engines = new Dictionary<LanguageContext, ScriptEngine>();

            bool freshEngineCreated;
            _globals = new ScriptScope(GetEngineNoLockNoNotification(_invariantContext, out freshEngineCreated), _manager.Globals);

            // runtime needs to be all set at this point, host code is called

            _host.SetRuntime(this);

            object noDefaultRefs;
            if (!setup.Options.TryGetValue("NoDefaultReferences", out noDefaultRefs) || Convert.ToBoolean(noDefaultRefs) == false) {
                LoadAssembly(typeof(string).GetTypeInfo().Assembly);
                LoadAssembly(typeof(System.Diagnostics.Debug).GetTypeInfo().Assembly);
            }
        }
Esempio n. 2
0
        /// <summary>
        /// Creates ScriptRuntime in the current app-domain and initialized according to the the specified settings.
        /// Creates an instance of host class specified in the setup and associates it with the created runtime.
        /// Both Runtime and ScriptHost are collocated in the current app-domain.
        /// </summary>
        public ScriptRuntime(ScriptRuntimeSetup setup) {
            ContractUtils.RequiresNotNull(setup, "setup");

            // Do this first, so we detect configuration errors immediately
            DlrConfiguration config = setup.ToConfiguration();
            _setup = setup;

            _host = ReflectionUtils.CreateInstance<ScriptHost>(setup.HostType, setup.HostArguments.ToArray<object>());

            ScriptHostProxy hostProxy = new ScriptHostProxy(_host);

            _manager = new ScriptDomainManager(hostProxy, config);
            _invariantContext = new InvariantContext(_manager);

            _io = new ScriptIO(_manager.SharedIO);
            _engines = new Dictionary<LanguageContext, ScriptEngine>();

            bool freshEngineCreated;
            _globals = new ScriptScope(GetEngineNoLockNoNotification(_invariantContext, out freshEngineCreated), _manager.Globals);

            // runtime needs to be all set at this point, host code is called

            _host.SetRuntime(this);
        }
Esempio n. 3
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 public ScriptHostProxy(ScriptHost host) {
     Assert.NotNull(host);
     _host = host;
 }