CodePlex Issue #32530 Plain Text Attachments

ScriptHostContainsVariableMissingMemberException.cs

using System;
using IronPython.Hosting;
using Microsoft.Scripting.Hosting;

class Program
{
    static void Main()
    {
        ScriptEngine engine = Python.CreateEngine();
        ScriptScope scope = engine.CreateScope();

        // The following internally throws (and catches) a MissingMemberException,
        // causing VS to break, (if in VS menu "Debug", "Exceptions...", "Common Language Runtime Exceptions", "System", column "Thrown" is checked for row "System.MissingMemberException")
        // and printing this message to the Debug log:
        //      A first chance exception of type 'System.MissingMemberException' occurred in Anonymously Hosted DynamicMethods Assembly
        bool b = scope.ContainsVariable("nonexisting");

        Console.WriteLine("scope.ContainsVariable(\"nonexisting\") = {0}", b);
    }
}

V2_ScriptHostContainsVariableMissingMemberException.cs

using System;
using IronPython.Hosting;
using Microsoft.Scripting.Hosting;

class Program
{
    static void Main()
    {
            var engine = Python.CreateEngine();
            var storage = new Dictionary<string, object>();
            var scope = engine.CreateScope(storage);
            engine.Execute("existing = 5", scope);
            var a = storage.ContainsKey("existing");
            var b = storage.ContainsKey("nonexisting");
            Console.WriteLine("scope.ContainsVariable(\"existing\") = {0}", a);
            Console.WriteLine("scope.ContainsVariable(\"nonexisting\") = {0}", b);
            Console.ReadKey();
    }
}