Taylor Yu
2dc93cadda
fix(from_str, try_from_into): custom error types
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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.
2021-06-24 21:33:41 -05:00
marisa
a3ea37b76e
Merge pull request #771 from tlyu/iterators5-trait-tweak
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fix(iterators5): derive Clone, Copy
2021-06-24 14:17:05 +02:00
marisa
ec63cadadb
Merge pull request #772 from tlyu/errors-rework
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feature: improve error_handling exercises
2021-06-24 14:12:34 +02:00
Taylor Yu
b7ddd09fab
address review feedback
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Adjust error text and naming to conform with best practices.
Use `map_err()` instead of `or()`. Wrap lower-level errors instead of
ignoring their details.
Also, don't "cheat" by bypassing the `new()` function in tests.
Fix a dangling reference in the try_from_into hints.
2021-06-09 23:27:53 -05:00
ZC
48ffcbd2c4
fix(variables5): confine the answer further
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let mut number = 3; can lead to a correct answer, so the comment helps to direct the users to the intended answer.
2021-06-07 18:22:55 +08:00
Taylor Yu
68d3ac567c
feature: improve error_handling exercises
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Add new exercises errors5 and errors6, to introduce boxed errors and
custom error enums more gently. Delete errorsn, because it tried to do
too much too soon.
2021-06-06 23:08:57 -05:00
Taylor Yu
50ab289da6
fix: rename result1 to errors4
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Also put it in the ERROR HANDLING section where it probably belongs.
2021-06-06 23:08:54 -05:00
Taylor Yu
91fc9e3118
fix(iterators5): derive Clone, Copy
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To allow more flexibility in solutions, derive `Clone` and `Copy`
for `Progress`.
2021-06-06 17:38:02 -05:00
Taylor Yu
1b85828548
fix: move_semantics5 hints
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Improve the hints for move_semantics5, as well as the explanatory
comments in the code.
Previously, it was not clear what possible changes were allowed.
It seems that reordering the statements might be the intended solution.
The previous comment about not "adding newlines" doesn't make sense,
so treating it as "adding new lines" makes it more clear.
2021-05-22 22:09:58 -05:00
Sateesh
399ab328d8
feat: Add move_semantics5 exercise. ( #746 )
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* feat: Add move_semantics5 exercise.
* feat: Add option3 exercise
* Address review comments. Fix typos, sentence formatting.
* Remove unwanted newline.
* Address review comments: make comment inline, fix format in print.
2021-05-17 14:10:40 +02:00
Juan Pablo Ramirez
4d4fa77459
fix: remove trailing whitespaces from iterators1
2021-05-12 10:20:07 -05:00
Juan Pablo Ramirez
3145794084
fix: add hints to generics1 and generics2 exercises
2021-05-11 14:50:05 -05:00
Juan Pablo Ramirez
d9b69bd1a0
fix: remove trailing whitespace
2021-05-09 17:58:54 -05:00
Pi Delport
9569c9a9e7
style(standard_library_types): stray line break
2021-04-29 23:31:26 +02:00
Maarten Tibau
650b1dee54
chore: Update quiz1.rs add explicit test for 40
2021-04-25 19:02:50 +02:00
Zerotask
249ad44cc0
docs(exercises): updated all exercises readme files
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all exercises readme files now have a unified structure and a description
2021-04-23 19:54:31 +02:00
marisa
54804e344d
Merge pull request #721 from Zerotask/add-further-help-for-generics3
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docs(generics): add bounds help
2021-04-23 15:05:00 +02:00
Zerotask
f253103a31
docs(generics): add bounds help
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add help for bounds provided by the rust by example book
2021-04-22 22:11:04 +02:00
Zerotask
1120db57a6
docs(errors): add additional help for Result/Boxing
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add additional help information provided by the rust by example book
2021-04-22 21:32:29 +02:00
Brandon Macer
81be404487
feat(arc1): Add more details to description and hint ( #710 )
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Co-authored-by: bmacer <bmacer@cisco.com>
Co-authored-by: marisa <mokou@fastmail.com>
Co-authored-by: Roberto Vidal <vidal.roberto.j@gmail.com>
2021-04-21 14:50:03 +02:00
marisa
79cc657917
Merge pull request #646 from apogeeoak/iterator
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Added iterators5.rs exercise.
2021-04-21 10:10:50 +02:00
apogeeoak
9c88ea9126
Improved iterators5.rs explanation.
2021-04-20 18:55:04 -04:00
marisa
2b766ef9f9
Merge pull request #648 from apogeeoak/iterator2
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Moved iterators2.rs errors out of tests.
2021-04-20 11:24:10 +02:00
marisa
bd3d9ac9d5
Merge pull request #649 from apogeeoak/iterator3
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Enabled iterators3.rs to run without commented out tests.
2021-04-20 11:22:39 +02:00
Shao Yang Hong
6bd791f2f4
fix(structs): Add 5.3 to structs/README ( #652 )
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Co-authored-by: Shao Yang Hong <shaoyang.hong@ninjavan.co>
2021-04-20 11:19:24 +02:00
k12ish
b4de659438
fix(option2): Rename uninformative variables ( #675 )
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Renaming uninformative names like `optional_value`, `value`, `optional_values_vec` and `value` helps users distinguish between the two parts of the task.
2021-04-20 11:18:05 +02:00
Pete Pavlovski
72aaa15e6a
fix(hashmap2): Update incorrect assertion ( #660 )
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The test description says "at least five types of fruit", but the test itself is checking for exactly five types of fruit, which was a bit misleading for newcomers like me :)
A simple change from "==" to ">=" should do the trick and successfully check for the "at least" condition.
2021-04-20 11:15:49 +02:00
Abdou Seck
f2ad3a6a0b
Merge pull request #697 from WowSuchRicky/main
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Rename 'Lichi' to 'Lychee' in the fruit example
2021-04-13 10:40:07 -04:00
Abdou Seck
caf921a01f
Merge pull request #674 from Morsicus/fix/collections-exercises-naming
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Update collections exercises naming
2021-04-13 10:39:18 -04:00
WowSuchRicky
b790bafc02
Rename lichi to lychee in the fruit example
2021-04-09 14:08:02 -07:00
Taylor Yu
c3e7b83178
fix: use trait objects for from_str
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Use `Box<dyn error::Error>` to allow solutions to use `?` to propagate
errors.
2021-04-04 18:56:10 -05:00
Taylor Yu
2e93a588e0
fix: use trait objects for try_from_into
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Use `Box<dyn error::Error>` to allow solutions to use `?` to propagate
errors. In the tests, explicitly check `is_ok()` instead of trying to
force the error type to `String` (or other `PartialEq` type) using
`assert_eq!()`.
2021-04-04 12:41:32 -05:00
Ignacio Le Fluk
a6509cc4d5
fix(functions3): improve function argument type ( #687 )
2021-04-04 09:43:25 +02:00
Rod Elias
3df094713f
chore: capitalize c
letter
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By capitalizing the `c` letter it makes clear that we're talking about the C programming language.
2021-03-20 21:12:49 +01:00
Mickael Fortunato
ab9995e76e
doc: Update collections exercises instruction to match the standard naming
2021-03-18 19:11:15 +01:00
Mickael Fortunato
bef39b1259
fix(collections): Naming exercises for vectors and hashmap
2021-03-18 19:11:04 +01:00
Pascal H
0d894e6ff7
fix(quiz3): Force an answer to Q2 ( #672 )
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Add also an example of unimplemented!() macro.
2021-03-16 10:14:25 +01:00
Pascal H
3bce2ef8d6
chore: clarify collections documentation
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C++ `map` is more like BTreeMap.
`unordered_map` in C++(11) is the equivalent of `HashMap` in Rust.
(+ additional like for references).
2021-03-15 09:14:12 +01:00
Darius Wiles
9f3e8c2dde
fix(structs3): reword heading comment ( #664 )
2021-03-13 12:14:02 +01:00
cadolphs
05a753fe63
fix: add check to prevent naive implementation of is_international
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* fix(structs3): Add check to prevent naive implementation
* chore(structs3): Add a missed newline after the test I added
2021-03-12 18:36:35 +01:00
Jirka Kremser
5f7c89f85d
fix(from_str): Correct typos
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typos in the comments
2021-02-21 21:50:17 +01:00
apogeeoak
c6712dfccd
fix(iterators3): Enabled iterators3.rs to run without commented out tests.
2021-02-12 15:36:53 -05:00
apogeeoak
baf4ba175b
fix(iterators2): Moved errors out of tests.
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Closes #359
2021-02-11 21:24:32 -05:00
apogeeoak
b29ea17ea9
feat: Added iterators5.rs exercise.
2021-02-10 18:03:29 -05:00
Tal
cc266d7d80
fix(move_semantics4): Remove redundant "instead" ( #640 )
2021-02-07 12:22:13 +01:00
Jean-Francois Chevrette
15e71535f3
fix(from_str): test for error instead of unwrap/should_panic
2021-01-21 07:55:22 -05:00
Sang-Heon Jeon
4f1374a6e7
feat(from_into) : add test for checking unnecessary trailing value
2021-01-09 00:08:38 +09:00
Sang-Heon Jeon
5a0521e92c
feat(from_str) : add test for checking unnecessary trailing value
2021-01-09 00:07:13 +09:00
Christian Zeller
7857b0a689
fix(threads1): line number correction
2021-01-06 13:47:20 +01:00
Marius Ungureanu
10965920fb
fix(move_semantics4): Small readbility improvement ( #617 )
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* Small readbility improvement move_semantics4 doc
* Remove `an` as it refers to the argument
2021-01-06 10:12:33 +01:00