c++/cliからJScriptを呼び出します。 http://www.west-wind.com/WebLog/posts/10688.aspx (消滅)のコメント(by Lea Hayes October 01, 2008 @ 9:32 am)と 参照されているページ(http://odetocode.com/articles/80.aspx)を参考にしました。

Evaluator.cpp

ref class Evaluator
{
public:
    static System::Object^ Eval(System::String ^statement) {
	return _evaluatorType->InvokeMember(
	    "Eval", 
	    System::Reflection::BindingFlags::InvokeMethod, 
	    nullptr, _evaluator, 
	    gcnew array<System::Object^>(1) { statement });
    }

    static System::Object^ EvalFunc(
	System::String ^func, System::Object ^args) {

	System::Runtime::Serialization::Json
	    ::DataContractJsonSerializerSettings flags;
	flags.UseSimpleDictionaryFormat = true;
	System::Runtime::Serialization::Json::DataContractJsonSerializer
	    ser(args->GetType(), %flags);

	System::IO::MemoryStream s;
	s.WriteByte('(');
	ser.WriteObject(%s, args);
	s.WriteByte(')');
	s.Flush();

	return _evaluatorType->InvokeMember(
	    "EvalFunc", 
	    System::Reflection::BindingFlags::InvokeMethod, 
	    nullptr, _evaluator, 
	    gcnew array<System::Object^>(2) {
		"(" + func + ")", 
		System::Text::Encoding::Default->GetString(s.ToArray())});
    }
               
private:
    Evaluator() { }

    static System::Type ^ compileEvaluator() {
	Microsoft::JScript::JScriptCodeProvider compiler;
	System::CodeDom::Compiler::CompilerParameters parameters;
	parameters.GenerateInMemory = true;
#define _ "\n"
	return
	    compiler.CompileAssemblyFromSource(
		%parameters, 
		"package Evaluator {" _
		"  class Evaluator {" _
		"    function Eval(expr : String)" _
		"    {" _
		"      return eval(expr);" _
		"    }" _
		"    function EvalFunc(func : String, arg : String)" _
		"    {" _
		"      return eval(func)(eval(arg));" _
		"    }" _
		"  }" _
		"}")->CompiledAssembly->GetType("Evaluator.Evaluator");
#undef _
    }
    static System::Type ^ const _evaluatorType = compileEvaluator();
    static System::Object ^ const _evaluator = 
	System::Activator::CreateInstance(_evaluatorType);
};