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2dc93cadda
Remove the use of trait objects as errors from `from_str` and `try_from_into`; they seem to have caused a lot of confusion in practice. (Also, it's considered best practice to use custom error types instead of boxed errors in library code.) Instead, use custom error enums, and update hints accordingly. Hints also provide some guidance about converting errors, which could be covered more completely in a future advanced errors section. Also move from_str to directly after the similar exercise `from_into`, for the sake of familiarity when solving. |
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|---|---|---|
| .. | ||
| clippy | ||
| collections | ||
| conversions | ||
| enums | ||
| error_handling | ||
| functions | ||
| generics | ||
| if | ||
| macros | ||
| modules | ||
| move_semantics | ||
| option | ||
| primitive_types | ||
| standard_library_types | ||
| strings | ||
| structs | ||
| tests | ||
| threads | ||
| traits | ||
| variables | ||
| quiz1.rs | ||
| quiz2.rs | ||
| quiz3.rs | ||
| quiz4.rs | ||
| README.md | ||
Exercise to Book Chapter mapping
| Exercise | Book Chapter |
|---|---|
| variables | §3.1 |
| functions | §3.3 |
| if | §3.5 |
| move_semantics | §4.1 |
| primitive_types | §4.3 |
| structs | §5.1 |
| enums | §6 |
| modules | §7.2 |
| collections | §8.1 |
| strings | §8.2 |
| error_handling | §9 |
| generics | §10 |
| option | §10.1 |
| traits | §10.2 |
| tests | §11.1 |
| standard_library_types | §13.2 |
| threads | §16.1 |
| macros | §19.6 |
| clippy | n/a |
| conversions | n/a |