Bug fix for issue #8111 - Don't mark cast as redundant if removing it will change the shape of a new anonymous object #8195
Conversation
… will change the shape of a new anonymous object
This fixes a corner case in which the IDE0004 diagnostic ("C# Cast is
redundant") claims a cast is safe to remove, when removing it could in
fact change program behavior, by changing the type of an anonymous
object's member
davkean
added
the
Community
|
@dotnet-bot test eta please tag @dotnet/roslyn-ide @DustinCampbell |
|
@dotnet-bot retest prtest/mac/dbg/unit32 please |
| public enum Directions { North, East, South, West } | ||
| } | ||
| "); | ||
| } |
There was a problem hiding this comment.
It's be good to add a test to ensure that it still reports redundant identity casts in this scenario.
There was a problem hiding this comment.
Also, tests for casts when the property name is omitted. E.g.
object thing = new { (int)Directions.South };There was a problem hiding this comment.
Both good ideas, I'll try to get those in soon
|
Ignore my comment about |
…nAnalyzer (from CastExpressionSyntaxExtentions)
…dundant from being marked for removal
|
tag @dotnet/roslyn-ide for another look. |
|
LGTM |
| @@ -430,10 +430,23 @@ protected override bool ReplacementChangesSemanticsForNodeLanguageSpecific(Synta | |||
| { | |||
| return !TypesAreCompatible((ImplicitArrayCreationExpressionSyntax)currentOriginalNode, (ImplicitArrayCreationExpressionSyntax)currentReplacedNode); | |||
| } | |||
| else if (currentOriginalNode is AnonymousObjectMemberDeclaratorSyntax) | |||
There was a problem hiding this comment.
why 'is' instead of the Kind checks like above?
There was a problem hiding this comment.
Saw others with "is", especially at the top of the method, copied that style.
|
|
|
Sorry for the late reply on this, we'll try and get this merged in today. @dotnet-bot test eta please |
|
@dotnet-bot test eta please |
|
@dotnet-bot test eta please |
|
test vsi please |
|
retest this please |
|
@steveniles -- sorry it took so long to get this one in. Running tests one more time. |
|
@DustinCampbell No problem, figured it would get done once the issues with the test server(s) were resolved :) |
Fixes #8111
This fixes a corner case in which the IDE0004 diagnostic ("C# Cast is redundant") claims a cast is safe to remove, when removing it could in fact change program behavior, by changing the type of an anonymous object's member