[jira] [Created] (GROOVY-10130) Flow typing does not work when && is combinded with instanceof

["Stefanos Chaliasos (Jira)" <ji...@apache.org>]

Stefanos Chaliasos created GROOVY-10130:
-------------------------------------------

             Summary: Flow typing does not work when && is combinded with instanceof
                 Key: GROOVY-10130
                 URL: https://issues.apache.org/jira/browse/GROOVY-10130
             Project: Groovy
          Issue Type: Bug
          Components: Static compilation, Static Type Checker
            Reporter: Stefanos Chaliasos


I have the following Groovy program.
{code:groovy}
@groovy.transform.TypeChecked
class Test {
  public void foo(Foo x) {
    ((true && x instanceof Bar)) ? new Bar[]{x} : null
  }
}

class Foo {}

class Bar extends Foo {}
{code}
h2. Actual Behavior

The program does not compile, and I get the following error.
{code:java}
org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
Test.groovy: 4: [Static type checking] - Cannot convert from Foo to Bar
 @ line 4, column 46.
    instanceof Bar)) ? new Bar[]{x} : null
                                 ^

1 error
{code}
h2. Expected Behavior

Compile successfully.
h2. Comment

This should be a regression bug because it works with 3.0.8 and 4.0.0-alpha-3.
h2. Affected Version

This programs have been tested with the compiler from the master (commit: 8ea882a587ce3183c95ea1bc19dfc44367dc292e).



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