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domain |
keywords |
technologies |
countries |
application-area |
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style |
| case |
| statement |
| formatting |
| possibility |
| action |
| line-break |
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case action goes on the line after the possibility
Description
In an AL case statement, the action for each label is written on the line that follows the label, not on the same line. 'A': Letter2 := '10'; on a single line is the discouraged form; the convention is 'A': on one line and Letter2 := '10'; on the next, indented one level deeper. The exception is when the action is a begin … end block — there the begin follows the colon on the same line, consistent with the rule for then begin / else begin / do begin.
Best Practice
Each case label sits on its own line, terminated by :. The action below it is indented; multi-statement actions open with begin on the label line and close with end; on its own line.
See sample: case-action-on-line-after-possibility.good.al.
Anti Pattern
'A': Letter2 := '10'; (single-line label and action), and 'C': begin Letter2 := '12'; DoSomething(); end; (everything on one line including the block body). Both defeat per-line diff review and crowd the control flow.
See sample: case-action-on-line-after-possibility.bad.al.
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