ABAP Keyword Documentation →  ABAP - Reference →  Obsolete Language Elements →  Obsolete modularization →  Subroutines 

FORM - DEFINITION, IMPLEMENTATION

Short Reference

Other versions: 7.31 | 7.40 | 7.54

Obsolete Syntax

FORM subr DEFINITION
          [TABLES table_parameters]
          [USING parameters]
          [CHANGING parameters]
          [RAISING exc1|RESUMABLE(exc1) exc2|RESUMABLE(exc2) ...].

FORM subr IMPLEMENTATION.
  ...
ENDFORM.

Effect

In this variant of the statement FORM the definition of a subroutine subr is shared between a declaration part and an implementation part:

• The statement FORM subr DEFINITION declares the subroutine and its parameter interface. The meaning of the additions is the same as in FORM. A subroutine declaration of this type is part of the global declaration part of a program.
• The subroutine is implemented between the statements FORM subr IMPLEMENTATION and ENDFORM. These statements define a processing block in the implementation part of the program.
  

This form of the definition of a subprogram is required if a subroutine of an encapsulated package is to be called from another program. In this case, the subroutine must be declared in a definition include. If the calling program is in a different package, the subroutine declared in the definition include has to be published explicitly in the package interface.