Examples — before/after, one rule cluster per file
Each file shows the shorthand form (BEFORE, commented out — some deliberately do not compile, that is part of the point) and the AED form (AFTER, live code) for one rule from ../CONVENTIONS.md.
| File | Rule | The move |
|---|---|---|
| 01_branch_on_type.cr | Rule 1 | case … in / dot-riddle case → explicit if … is_a? |
| 02_name_the_thing.cr | Rule 2 | decoded chain → named intermediate |
| 03_guard_clauses.cr | Rule 3 | nested ternary → guard clauses |
| 04_reader_first_names_and_comments.cr | Rules 4 + 5 | cryptic names / what-comments → intention-revealing names / why-comments |
The test applied throughout: does a reader who has never seen this code understand the intent on first pass? If they must mentally execute it, expand it.