https://bugzilla.novell.com/show_bug.cgi?id=643456
https://bugzilla.novell.com/show_bug.cgi?id=643456#c0 Summary: gmcs fails to infer generic type arguments when the "source" type is a generic constraint Classification: Mono Product: Mono: Compilers Version: 2.6.x Platform: x86-64 OS/Version: Linux Status: NEW Severity: Normal Priority: P5 - None Component: C# AssignedTo: [email protected] ReportedBy: [email protected] QAContact: [email protected] Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/534.3 (KHTML, like Gecko) Chrome/6.0.472.63 Safari/534.3 using System.Collections.Generic; using System.Linq; class ListWrapper<TEntry, TEntryCollection> where TEntry : class where TEntryCollection : IList<TEntry> { public IEnumerable<TEntry> Fail(TEntryCollection subject) { return subject.Where(e => e != null); // error CS0411: The type arguments for method `System.Linq.Enumerable.Where<TSource>(this System.Collections.Generic.IEnumerable<TSource>, System.Func<TSource,int,bool>)' cannot be inferred from the usage. Try specifying the type arguments explicitly } public IEnumerable<TEntry> NoFail(IList<TEntry> subject) { return subject.Where(e => e != null); } } Reproducible: Always Steps to Reproduce: 1. try to build the included source Actual Results: The code fails to compile. gmcs fails to infer the type argument for the Where() in Fail(TEntryCollection): error CS0411: The type arguments for method `System.Linq.Enumerable.Where<TSource>(this System.Collections.Generic.IEnumerable<TSource>, System.Func<TSource,int,bool>)' cannot be inferred from the usage. Try specifying the type arguments explicitly Expected Results: The code compiles under MS' CSC.exe from VS2010 (both using langversion=3 and with default settings) This seems to be a continuation of bug 599449. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the QA contact for the bug. You are the assignee for the bug. _______________________________________________ mono-bugs maillist - [email protected] http://lists.ximian.com/mailman/listinfo/mono-bugs
