| bc-version |
domain |
keywords |
technologies |
countries |
application-area |
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style |
| begin |
| end |
| compound-statement |
| aa0005 |
| codecop |
| formatting |
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begin goes on the same line as then, else, or do (CodeCop AA0005)
Description
When a compound block follows then, else, or do, the begin keyword must sit on the same line as the preceding keyword, separated by exactly one space. if Condition then begin and for i := 1 to N do begin are correct. The form that puts begin on its own line — common in older AL and in languages like Pascal — is flagged by CodeCop AA0005. The rule does not change indentation of the block body; it only governs the placement of begin relative to then/else/do.
Best Practice
if Condition then begin … end;, else begin … end;, for i := 1 to N do begin … end;. The block body is indented one level below the if/for line, and end; sits at the same indentation as the line that opened the block.
See sample: begin-on-same-line-as-then-else-do.good.al.
Anti Pattern
A line that ends with then (or else, or do) and is followed by a line whose only content is begin. The compiler accepts it but CodeCop AA0005 flags it; the visual cost is a wasted line per block and a layout that looks alien to readers used to current AL style.
See sample: begin-on-same-line-as-then-else-do.bad.al.
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