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Closed Issue: Expressions are not printed in interactive mode [3010]

billchi — Thu, 16 May 2013 10:29:20 GMT

See these mails.
http://rubyforge.org/pipermail/ironruby-core/2009-March/004008.html
http://lists.ironpython.com/pipermail/users-ironpython.com/2009-April/010140.html

This only happens on Mono (newline difference).

Pasting Jb Evain's mail:

The issue lies in the processing of new lines in
Microsoft.Scripting.Core.Hosting.Shell.CommandLine.

The code is appending \n as terminating new lines, but checks for the
presence of Environment.NewLine inside the evaluated string. Obviously
it works only if Environment.NewLine is \r\n, and not \n.

Closed Issue: Engine.Operations.GetDocumentation(...) broken under .NET 4.0? [6071]

billchi — Thu, 16 May 2013 10:29:17 GMT

<Test>HostingTest.dll (GetDocumentation_FromDotNetObject)</Test>

Under .NET 3.5, calling "Engine.Operations.GetDocumentation(testObject)" where testObject is a .NET DateTime object produced a string containing "Represents an instant in time, typically expressed as a date and time of day".

Under .NET 4.0 it's now:
DateTime(ticks: Int64)
DateTime(ticks: Int64, kind: DateTimeKind)
DateTime(year: int, month: int, day: int)
DateTime(year: int, month: int, day: int, calendar: Calendar)
DateTime(year: int, month: int, day: int, hour: int, minute: int, second: int)
DateTime(year: int, month: int, day: int, hour: int, minute: int, second: int, kind: DateTimeKind)
DateTime(year: int, month: int, day: int, hour: int, minute: int, second: int, calendar: Calendar)
DateTime(year: int, month: int, day: int, hour: int, minute: int, second: int, millisecond: int)
DateTime(year: int, month: int, day: int, hour: int, minute: int, second: int, millisecond: int, kind: DateTimeKind)
DateTime(year: int, month: int, day: int, hour: int, minute: int, second: int, millisecond: int, calendar: Calendar)
DateTime(year: int, month: int, day: int, hour: int, minute: int, second: int, millisecond: int, calendar: Calendar, kind: DateTimeKind)

Is this really a change in .NET 4.0 or is this API broken somehow?

Created Issue: Please update support for Windows Phone and VS 2012 [11530]

mcandre — Mon, 28 Jan 2013 15:59:28 GMT

DLR doesn't work any more.

Created Issue: Can not Find .py files [7475]

wangxh — Mon, 25 Oct 2010 08:19:51 GMT

c#
var runtime = Silverlight.DynamicEngine.CreateRuntime();
var python = runtime.GetEngine("python");
ScriptScope ss = python.CreateScope();
dynamic script = python.CreateScriptSourceFromFile("test.py").Execute();
test.py
import System.Windows.Controls
import System.Windows.Media
from System.Windows.Controls import *
from System.Windows.Media import *

Please see attachment code
Hope someone to help me find the problem
thank you very much

Commented Issue: LiftedToNull OrElse bug for user types [5867]

rdawson — Fri, 06 Aug 2010 20:05:00 GMT

The attached test case, (extracted from the tests cases I wrote when implementing the 3.5 System.Linq.Expressions in Mono), fails on .net 4.0 RC and with the latest DLR checkout, while it works on 3.5.
Comments: ** Comment from web user: rdawson **

Thanks for reporting this. We definitely are behaving differently than we did in .NET 3.5, and it was good to revisit the design discussions that led to the new spec which JMesserly referred to in his original reply.

Having had the discussions again, we favor the 4.0 behavior over the 3.5 behavior. Matching VB was one of our goals in refactoring this code, and we do now. (3.5 did not.)

Created Issue: Bug in DefaultBinder building comparison rules [6675]

jskaistis — Wed, 21 Jul 2010 14:38:37 GMT

There appears to be a copy/paste bug in DefaultBinder.Operations.cs in MakeComparisonRule:

private DynamicMetaObject MakeComparisonRule(OperatorInfo info, OverloadResolverFactory resolverFactory, DynamicMetaObject[] args) {
return
TryComparisonMethod(info, resolverFactory, args[0], args) ?? // check the first type if it has an applicable method
TryComparisonMethod(info, resolverFactory, args[0], args) ?? // then check the second type
TryNumericComparison(info, resolverFactory, args) ?? // try Compare: cmp(x,y) (>, <, >=, <=, ==, !=) 0
TryInvertedComparison(info, resolverFactory, args[0], args) ?? // try inverting the operator & result (e.g. if looking for Equals try NotEquals, LessThan for GreaterThan)...
TryInvertedComparison(info, resolverFactory, args[0], args) ?? // inverted binding on the 2nd type
TryNullComparisonRule(args) ?? // see if we're comparing to null w/ an object ref or a Nullable<T>
TryPrimitiveCompare(info, args) ?? // see if this is a primitive type where we're comparing the two values.
MakeOperatorError(info, args); // no comparisons are possible
}

The lines that are commented as working on the second type are still using index 0 instead of 1, so it's just duplicating operations on the first arg type.

Closed Issue: SetVariable(“app”, this) [5244]

billchi — Fri, 11 Jun 2010 20:43:20 GMT

I have the following code in a Silverlight 3 application using Dynamic Language Runtime JavaScript ("button" is the name of a Button control):

private void Button_Click(object sender, RoutedEventArgs e)
{
var scriptRuntime = ScriptRuntime.Create();
foreach (var name in new[] { "mscorlib", "System", "System.Windows" })
{
scriptRuntime.LoadAssembly(scriptRuntime.Host.PlatformAdaptationLayer.LoadAssembly(name));
}
var scriptEngine = scriptRuntime.GetEngine("js");
var baseScope = scriptEngine.CreateScope();
baseScope.SetVariable("app", this);
string script = "app.button.Content='Test'";
var scriptSource = scriptEngine.CreateScriptSourceFromString(script,
Microsoft.Scripting.SourceCodeKind.Statements);
var compiledCode = scriptSource.Compile();
compiledCode.Execute(baseScope);
}

It throws "Object required" exception on Execute. But if I replace

baseScope.SetVariable("app", this);
string script = "app.button.Content='Test'";

with

baseScope.SetVariable("button", this.button);
string script = "button.Content='Test'";

it executes successfully and button.Content changes. It strangely seems like "button" is not accessible via "this". I guess any control in Silverlight is "public" so any class can use such child controls from this.GetType() instance. Please help with solving this.
Comments:

Created Issue: Engine.Operations.GetDocumentation(...) broken under .NET 4.0? [6071]

dfugate — Thu, 06 May 2010 19:09:28 GMT

Commented Issue: DebugContext.TransformLambda doesn't walk nested lambdas [5029]

dinov — Fri, 30 Apr 2010 20:27:26 GMT

<Thanks>dotneteer</Thanks>

I looked into the source code of Microsoft.Scripting.Debugging and have a better understanding of the problem. First of all, both LambdaWalker and DebugableLambdaBuilder does not handle Lambda expression. The comments said that they expect the lambda to have been transformed already. So we do not to transform each nexted lambda separately. Secondly a more severe problem, if the nested lambda reference parameter expressions in the parent lambda, the reference become invalid after the parent is transformed. Thirdly, if we transform the child that references parent parameters, the child cannot see the parent parameter after transform.
Comments: ** Comment from web user: dinov **

Tracked as dev10 bug #896828

Commented Issue: DebugContext.TransformLambda doesn't walk nested lambdas [5029]

dinov — Fri, 30 Apr 2010 20:25:47 GMT

http://dlr.codeplex.com/WorkItem/View.aspx?WorkItemId=5029

Commented Issue: LiftedToNull OrElse bug for user types [5867]

dinov — Fri, 30 Apr 2010 20:24:21 GMT

Tracked internally as bug #892019

Closed Issue: TypeIs bug with void [5868]

dinov — Fri, 30 Apr 2010 20:22:39 GMT

Expression.TypeIs should throw an ArgumentException if being passed typeof (void).
Comments:

Closed Issue: Expression API regression [5875]

dinov — Fri, 30 Apr 2010 20:16:30 GMT

The attached test case pass on .net 3.5 and fails on .net 4.0.
Comments:

Commented Issue: SetVariable(“app”, this) [5244]

dinov — Fri, 30 Apr 2010 20:11:36 GMT

Can you include the source code for the class which has the button property or field? You should make sure that both the class and the field/property are public.

Commented Issue: Expression API regression [5875]

jbevain — Thu, 22 Apr 2010 11:41:29 GMT

The attached test case pass on .net 3.5 and fails on .net 4.0.
Comments: ** Comment from web user: jbevain **

Fine then.

Commented Issue: LiftedToNull OrElse bug for user types [5867]

jbevain — Thu, 22 Apr 2010 11:33:16 GMT

Scratch my last one, the rhs won't be evaluated twice with the patch. It's just emitted twice in the IL though.

Commented Issue: LiftedToNull OrElse bug for user types [5867]

jbevain — Thu, 22 Apr 2010 11:06:50 GMT

Note that the patch is just a proof of concept to show the issue, in itself, it's wrong as it will evaluate the rhs twice for OrElse. Not that I think that you're allowed to take patches, but still.

Commented Issue: LiftedToNull OrElse bug for user types [5867]

jbevain — Thu, 22 Apr 2010 11:02:01 GMT

Yes, this is a genuine bug. OrElse is not correct, while AndAlso is.

Here's the patch I'm using that passes my test suite:

http://gist.github.com/375076

It's not pretty as testBlock is repeated twice for OrElse, but it works.

Commented Issue: TypeIs bug with void [5868]

jbevain — Thu, 22 Apr 2010 10:10:56 GMT

Expression.TypeIs should throw an ArgumentException if being passed typeof (void).
Comments: ** Comment from web user: jbevain **

Fine with me, although it doesn't make much sense. Your sample test a void method against void, and prints False. Which is correct, as nothing has for type void, but you can always wonder if a void expression in TypeIs(void) should return True.

I personally would throw to avoid any issue.

Closed Issue: TypeLoadException when building and using Microsoft.Dynamic and Microsoft.Scripting under VS2010 beta2 [4705]

rdawson — Wed, 21 Apr 2010 18:44:53 GMT

I have a project that uses DLR in .NET4 (beta 2). I want to use DefaultBinder, so I drag in Microsoft.Dynamic (which requires Microsoft.Scripting, so I drag that into my VS2010b2 solution, too). I configure MS.Dynamic and MS.Scripting to build against v4 framework (in project properties).

When I call into DefaultBinder.CallMethod, I get a TypeLoadException whenever MS.Scripting is first loaded into the AppDomain:

"Inheritance security rules violated while overriding member: 'Microsoft.Scripting.SymbolId.GetObjectData(System.Runtime.Serialization.SerializationInfo, System.Runtime.Serialization.StreamingContext)'. Security accessibility of the overriding method must match the security accessibility of the method being overriden."

Any thoughts on where I might be going wrong here?

Thanks,
Josh
Comments: