Bug 45903 - auto-completion in REPL causes error on lambda expressions
Summary: auto-completion in REPL causes error on lambda expressions
Status: NEW
Alias: None
Product: Compilers
Classification: Mono
Component: C# (show other bugs)
Version: 4.6.0 (C8)
Hardware: Macintosh Mac OS
: --- normal
Target Milestone: ---
Assignee: Marek Safar
URL:
Depends on:
Blocks:
 
Reported: 2016-10-25 22:58 UTC by Jeremy McLain
Modified: 2016-10-26 18:40 UTC (History)
2 users (show)

Tags:
Is this bug a regression?: ---
Last known good build:

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Status:
NEW

Description Jeremy McLain 2016-10-25 22:58:31 UTC
An error happens whenever I use lambda expressions in multi-line statements. I believe this is caused by auto-completion crashing.

For example, an error happens as soon as I type the period:
csharp> var l = new List<int>()

csharp> l.First(                                                                                                                                                                                                 

      > x => x.(1,10): error CS0584: Internal compiler error: Expression Mono.CSharp.ParameterReference did not set its type after Resolve                                                                 (1,10): error CS0201: Only assignment, call, increment, decrement, await, and new object expressions can be used as a statement  



Another example:

csharp> Action<string> a =  

      > x => x.(1,10): error CS0584: Internal compiler error: Expression Mono.CSharp.ParameterReference did not set its type after Resolve

(1,10): error CS0201: Only assignment, call, increment, decrement, await, and new object expressions can be used as a statement
Comment 1 Miguel de Icaza [MSFT] 2016-10-26 18:40:48 UTC
Ok, these errors are annoying, but they are not fatal.   Let me discuss with Marek.