PH36431: IDZ 15.0.1 PL/I EDITOR ERRONEOUSLY DISPLAYS "AMBIGUOUS REFERENCE"

APAR status

• Closed as program error.

Error description

• Opening a PL/I source code with the PL/I editor in IBM Developer
  for z (IDZ) 15.0.1 there are incorrect "Ambiguous Reference"
  messages marked in the file.  The messages originate from a
  multi-level structure that contains the same name on different
  levels.  The referenced element is not ambiguous in this case.
  
  For example:
  
  SOME: PROC ;
  DCL
    1 S1,
      3 S1,
        5 C1 CHAR(1) INIT('A');
  PUT SKIP LIST(S1.C1);
  END SOME;
  
  This example code compiles with no errors or warnings so the
  expectation is that the PL/I editor would not mark any errors.
  

Local fix

Problem summary

• In PL/I editor 15.0.1 there is an incorrect "Ambiguous
  Reference" message marked in the file when there is a
  multi-level structure that contains the same name on different
  levels. A reference to an element of a multi-level structure is
  viewed as unambiguous if it is not a partially or fully
  qualified reference to any other variable in the block where the
   element is declared.
  
  For example:
  
  SOME: PROC ;
  DCL
    1 S1,
      3 S1,
        5 C1 CHAR(1) INIT('A');
  PUT SKIP LIST(S1.C1);
  END SOME;
  
  There are only 1 path for S1.C1: S1-> C1, S1 -> S1 -> C1. The
  first path is a subset of the second one, and therefore, there
  is no ambiguous reference.
  

Problem conclusion

• This issue has been resolved.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  DEV FOR Z/OS

• Fixed component ID

  5724T0700

Applicable component levels