Basis Errors and Solutions

ABAP_ASSERT at WRITE

July 10, 2009 at 5:39 am

[abap] [abap write] [assert at file] [sap abap]

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Symptom

Runtime error ABAP_ASSERT at ABAP statement WRITE if the field is
in a boxed component. This problem occurs in debug build only.
One example where the problem occurs is as follows:
TYPES : BEGIN OF str_box,
val TYPE i,
END OF str_box.
TYPES : BEGIN OF str_root,
box TYPE str_box BOXED,
END OF str_root.
DATA s TYPE str_root.
FIELD-SYMBOLS TYPE str_box.
ASSIGN s-box TO .
WRITE -val.
The same problem occurs at WRITE-statements in forms or methods where the boxed component s-box is passed as an argument. The problem also occurs when the ASSIGN-statement (or passed argument) involves nested substructures of boxed components.
The problem does not occur when the ASSIGN-statement (or passed argument) does not involve boxed substructures directly, e.g. like in the following continuation of the example above:
DATA a TYPE str_box.
a = s-box.
ASSIGN a TO .
WRITE -val.