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50 Commits
2.0.0 ... 2.2.0

Author SHA1 Message Date
mokou
6eb62fa2ce 2.2.0 2020-02-25 23:00:19 +01:00
bors
78295ce92f Auto merge of #274 - sjmann:master, r=fmoko 
chore: fixed merge conflicts from traits exercises added by s-marios

I hope this doesn't step on any toes but I wanted to try the traits exercises from #216 so I updated them to match the new structure with hints included in info.toml
 2020-02-25 21:27:39 +00:00
fmoko
358fb473cd Merge pull request #276 from stigjb-forks/testing-test4 
Enable test for exercise test4
 2020-02-25 14:25:22 +01:00
Stig Johan Berggren
a45486f2d0 Add a second test case 2020-02-25 14:25:03 +01:00
Stig Johan Berggren
8b971ffab6 Enable test for exercise test4 2020-02-25 14:13:10 +01:00
Steven Mann
dc84aacc65 remove confusing comment wording 2020-02-25 11:00:09 +00:00
sjmann
b559cdd73f added traits exercises 2020-02-25 09:48:50 +00:00
fmoko
ec51cdb229 Merge pull request #273 from sjmann/master 
docs(iterators): Updated iterators readme to account for iterators4 exercise
 2020-02-22 15:34:51 +01:00
sjmann
a3f70124dc fixed typo 2020-02-22 14:28:07 +00:00
sjmann
bec8e3a644 reworded missing exercise explanation 2020-02-22 13:04:37 +00:00
bors
c228a06e49 Auto merge of #272 - QuintenJohnson:fix/installation-warning-messages, r=fmoko 
fix(installation): make fatal errors more obvious

I initially ran the installation script without rust installed. The fact that the error message was labeled with WARNING made me unsure whether installation was successful or I needed to re-run after installing rust. There's an error code returned on fatal errors, but this change will make things clearer.
 2020-02-21 20:56:11 +00:00
Quinten Johnson
17d0951e66 fix(installation): make fatal errors more obvious 2020-02-21 11:52:47 -06:00
fmoko
83bbd9e82e chore: Correct test command in tests1.rs comment (#267) 
chore: Correct test command in tests1.rs comment
 2020-01-29 15:39:10 +01:00
Jason Tsai
39fa7ae8b7 chore: Correct test command in tests1.rs comment 2020-01-29 13:48:43 +08:00
fmoko
3161a8fd9d Fixed mangled sentence from book; edited for clarity (#266) 
Fixed mangled sentence from book; edited for clarity
 2020-01-25 13:27:53 +01:00
Paul Bissex
ade52ffb73 Fixed mangled sentence from book; edited for clarity 2020-01-25 03:24:14 -05:00
fmoko
89c73647f1 Add variables5 to introduce shadowing (#264) 
Add variables5 to introduce shadowing
 2020-01-14 23:32:45 +01:00
Torben Jonas
0c73609e6f feat: Add variables5.rs exercise 
closes #260
 2020-01-14 21:10:07 +01:00
fmoko
19a93428b3 fix: Update deps to version compatable with aarch64-pc-windows (#263) 
fix: Update deps to version compatable with aarch64-pc-windows
 2020-01-11 12:23:23 +01:00
Harrison Metzger
32a9cf7b8d fix: Update deps to version compatable with aarch64-pc-windows 2020-01-11 02:45:38 -06:00
fmoko
c86b217e1d Created consistent money unit (#258) 
Created consistent money unit
 2019-12-30 16:48:04 +01:00
gnodarse
fd57f8f2c1 Created consistent money unit 2019-12-29 19:15:32 -05:00
bors
0d1f1a19b7 Auto merge of #253 - codehearts:watch-completion-message, r=fmoko 
feat: Show a completion message when watching

The completion message is shown only once all exercises succeed and are
not annotated with "I AM NOT DONE." The watch command will also exit

closes #251

Let me know if there are any tests I could add or if the completion message should be tweaked!
 2019-12-28 20:01:28 +00:00
Kate Hart
d25ee55a32 feat: Show a completion message when watching 
The completion message is shown only once all exercises succeed and are
not annotated with "I AM NOT DONE." The watch command will also exit

closes #251
 2019-12-26 20:27:49 -08:00
fmoko
3afa96bed4 Enable a test and improve per clippy's suggestion. (#256) 
Enable a test and improve per clippy's suggestion.
 2019-12-25 00:59:35 +01:00
dmitri-mamrukov
dfdf8093eb Enable a test and improve per clippy's suggestion. 2019-12-23 21:37:09 -05:00
fmoko
3906efcd52 fix(docs): Added a necessary step to Windows installation process 2019-12-22 13:21:24 +01:00
Socrates
2021a1ac7d Update README.md 
Added an essential step to Windows installation process (Setting ExecutionPolicy to RemoteSigned because it wouldn't install otherwise).
 2019-12-22 14:16:04 +02:00
bors
426a7bb87f Auto merge of #249 - AbdouSeck:conversions, r=fmoko 
feat: Add type conversion and parsing exercises

This pull request adds exercises for converting values into specific types. The exercises uses string to struct type conversions, but most of the traits in the exercises can handle more than just string parsing and conversions.

The following traits are covered:
1. `From` and `Into`
2. `TryFrom` and `TryInto`
3. `AsRef`
4. `FromStr`

The `as` operator is also covered.
 2019-12-16 16:41:03 +00:00
Abdou Seck
fc26b5e151 I AM NOT DONE comment in conversions exercise files 2019-12-16 11:33:00 -05:00
Abdou Seck
0c85dc1193 feat: Add type conversion and parsing exercises 2019-12-16 09:12:13 -05:00
marisa
fe10e06c37 fix(tests1): Change test command 
Closes #243.
 2019-12-16 13:05:25 +01:00
marisa
419f7797f2 fix(iterators2): Remove reference to missing iterators2.rs (#245) 
fix(iterators2): Remove reference to missing iterators2.rs
 2019-12-16 12:51:03 +01:00
Rahat Ahmed
54571a5fca fix(iterators2): Remove reference to missing iterators2.rs 2019-12-07 23:25:13 -08:00
marisa
4b79691d5e 2.1.0 2019-11-27 10:46:09 +01:00
marisa
615ce32798 fix(enums): Add link to chapter on pattern syntax (#242) 
Add link to chapter on pattern syntax
 2019-11-25 12:16:51 +00:00
Jens
31c25ebb50 Add link to chapter on pattern syntax 
After being stuck on exercise enums3.rs for about an hour or two, having read the entire chapter on enums 2-3 times, and still being unable to complete the exercise, i started broadening my reading. I finally found the answer in the rust docs via google.
 2019-11-24 09:28:33 +01:00
bors
f4acb888a6 Auto merge of #241 - vyaslav:master, r=fmoko 
feat(watch): show hint while watching

`rustlings hint ...` command is not convenient when doing exercises with `rustlings watch`.
This PR makes it possible for user to type `hint` while running `watch`  and get hint text for exercise which is currently failing.
e.g.
```rust
...
  --> exercises/variables/variables1.rs:13:36
   |
13 |     println!("x has the value {}", x);
   |                                    ^ not found in this scope

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0425`.

type 'hint' to get help:
hint
Hint: The declaration on line 12 is missing a keyword that is needed in Rust
to create a new variable binding.
```
 2019-11-18 22:23:14 +00:00
vyaslav
8143d57b4e feat(watch): show hint while watching 2019-11-18 20:52:57 +01:00
bors
a40ad092e9 Auto merge of #239 - jrvidal:master, r=fmoko 
fix: line numbers in several exercises and hints

The introduction of `I AM NOT DONE` shifted the lines of all exercises, which now need adjustment.
 2019-11-14 08:23:50 +00:00
Roberto Vidal
b565c4d3e7 fix: line numbers in several exercises and hints 
The introduction of `I AM NOT DONE` shifted the lines of all
exercises, which now need adjustment.
 2019-11-14 08:21:56 +01:00
bors
e9a835c1c0 Auto merge of #237 - ckeschnat:master, r=fmoko 
fix(variables1): Correct wrong word in comment
 2019-11-13 23:45:56 +00:00
bors
cf38f03459 Auto merge of #238 - ageorgou:functions4-update, r=fmoko 
Update line numbers in hints and outdated comment

In functions4, the missing code is in line 14 in the latest version:
```rust
error: expected type, found `{`
  --> exercises/functions/functions4.rs:14:30
   |
14 | fn sale_price(price: i32) -> {
   |                              ^ expected type

error: aborting due to previous error
```
but the hint points to line 12. This is due to a recent change in 2cdd61294f.

Also includes similar updates for strings2 and primitive_types4.
 2019-11-13 23:41:00 +00:00
Anastasis Georgoulas
4c5189df2b fix(primitive_types4): update outdated hint 
Exercise was changed to test (and the order was switched) in #209.
 2019-11-13 23:23:34 +00:00
Anastasis Georgoulas
a09f684f05 fix(strings2): update line number in hint 2019-11-13 23:23:34 +00:00
ageorgou
8cc5af121c Fix(functions4): Update line number in hint 2019-11-12 23:49:19 +00:00
Chris Keschnat
c42c3b2101 fix(arc1): Fix some words in the comment 2019-11-12 18:37:23 +01:00
Chris Keschnat
fda5a47069 fix(variables1): Correct wrong word in comment 2019-11-12 17:33:25 +01:00
marisa
57a837bde6 Merge pull request #236 from jrvidal/master 
fix(primitive_types4): update outdated comment
 2019-11-12 13:00:28 +01:00
Roberto Vidal
ded2c034ba fix(primitive_types4): update outdated comment 2019-11-12 12:52:28 +01:00
28 changed files with 654 additions and 144 deletions
Expand all files Collapse all files

48
CHANGELOG.md
View File

@@ -1,3 +1,51 @@
<a name="2.2.0"></a>
## 2.2.0 (2020-02-25)
#### Bug Fixes
* Update deps to version compatable with aarch64-pc-windows (#263) ([19a93428](https://github.com/rust-lang/rustlings/commit/19a93428b3c73d994292671f829bdc8e5b7b3401))
* **docs:**
* Added a necessary step to Windows installation process (#242) ([3906efcd](https://github.com/rust-lang/rustlings/commit/3906efcd52a004047b460ed548037093de3f523f))
* Fixed mangled sentence from book; edited for clarity (#266) ([ade52ff](https://github.com/rust-lang/rustlings/commit/ade52ffb739987287ddd5705944c8777705faed9))
* Updated iterators readme to account for iterators4 exercise (#273) ([bec8e3a](https://github.com/rust-lang/rustlings/commit/bec8e3a644cbd88db1c73ea5f1d8a364f4a34016))
* **installation:** make fatal errors more obvious (#272) ([17d0951e](https://github.com/rust-lang/rustlings/commit/17d0951e66fda8e11b204d5c4c41a0d5e22e78f7))
* **iterators2:**
* Remove reference to missing iterators2.rs (#245) ([419f7797](https://github.com/rust-lang/rustlings/commit/419f7797f294e4ce6a2b883199731b5bde77d262))
* **as_ref_mut:** Enable a test and improve per clippy's suggestion (#256) ([dfdf809](https://github.com/rust-lang/rustlings/commit/dfdf8093ebbd4145864995627b812780de52f902))
* **tests1:**
* Change test command ([fe10e06c](https://github.com/rust-lang/rustlings/commit/fe10e06c3733ddb4a21e90d09bf79bfe618e97ce)
* Correct test command in tests1.rs comment (#263) ([39fa7ae](https://github.com/rust-lang/rustlings/commit/39fa7ae8b70ad468da49b06f11b2383135a63bcf))
#### Features
* Add variables5.rs exercise (#264) ([0c73609e](https://github.com/rust-lang/rustlings/commit/0c73609e6f2311295e95d6f96f8c747cfc4cba03))
* Show a completion message when watching (#253) ([d25ee55a](https://github.com/rust-lang/rustlings/commit/d25ee55a3205882d35782e370af855051b39c58c))
* Add type conversion and parsing exercises (#249) ([0c85dc11](https://github.com/rust-lang/rustlings/commit/0c85dc1193978b5165491b99cc4922caf8d14a65))
* Created consistent money unit (#258) ([fd57f8f](https://github.com/rust-lang/rustlings/commit/fd57f8f2c1da2af8ddbebbccec214e6f40f4dbab))
* Enable test for exercise test4 (#276) ([8b971ff](https://github.com/rust-lang/rustlings/commit/8b971ffab6079a706ac925f5917f987932b55c07))
* Added traits exercises (#274 but specifically #216, which originally added
this :heart:) ([b559cdd](https://github.com/rust-lang/rustlings/commit/b559cdd73f32c0d0cfc1feda39f82b3e3583df17))
<a name="2.1.0"></a>
## 2.1.0 (2019-11-27)
#### Bug Fixes
* add line numbers in several exercises and hints ([b565c4d3](https://github.com/rust-lang/rustlings/commit/b565c4d3e74e8e110bef201a082fa1302722a7c3))
* **arc1:** Fix some words in the comment ([c42c3b21](https://github.com/rust-lang/rustlings/commit/c42c3b2101df9164c8cd7bb344def921e5ba3e61))
* **enums:** Add link to chapter on pattern syntax (#242) ([615ce327](https://github.com/rust-lang/rustlings/commit/615ce3279800c56d89f19d218ccb7ef576624feb))
* **primitive_types4:**
* update outdated hint ([4c5189df](https://github.com/rust-lang/rustlings/commit/4c5189df2bdd9a231f6b2611919ba5aa14da0d3f))
* update outdated comment ([ded2c034](https://github.com/rust-lang/rustlings/commit/ded2c034ba93fa1e3c2c2ea16b83abc1a57265e8))
* **strings2:** update line number in hint ([a09f684f](https://github.com/rust-lang/rustlings/commit/a09f684f05c58d239a6fc59ec5f81c2533e8b820))
* **variables1:** Correct wrong word in comment ([fda5a470](https://github.com/rust-lang/rustlings/commit/fda5a47069e0954f16a04e8e50945e03becb71a5))
#### Features
* **watch:** show hint while watching ([8143d57b](https://github.com/rust-lang/rustlings/commit/8143d57b4e88c51341dd4a18a14c536042cc009c))
<a name="2.0.0"></a>
## 2.0.0 (2019-11-12)

153
Cargo.lock generated
View File

@@ -1,13 +1,5 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
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[[package]]
name = "aho-corasick"
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@@ -21,7 +13,7 @@ name = "ansi_term"
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[[package]]
@@ -42,7 +34,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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@@ -74,17 +66,6 @@ dependencies = [
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[[package]]
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[[package]]
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@@ -93,7 +74,7 @@ dependencies = [
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@@ -134,7 +99,22 @@ dependencies = [
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[[package]]
name = "console"
version = "0.8.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
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"lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
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"termios 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
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version = "0.9.0"
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version = "4.0.12"
version = "4.0.15"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
"filetime 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
"fsevent 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
"fsevent-sys 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
"inotify 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
"kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
"inotify 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"mio 0.6.19 (registry+https://github.com/rust-lang/crates.io-index)",
"mio-extras 2.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
"walkdir 2.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@@ -390,6 +365,14 @@ dependencies = [
"autocfg 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "number_prefix"
version = "0.2.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "numtoa"
version = "0.1.0"
@@ -417,7 +400,7 @@ dependencies = [
"redox_syscall 0.1.54 (registry+https://github.com/rust-lang/crates.io-index)",
"rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
"smallvec 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@@ -477,7 +460,7 @@ dependencies = [
"rand_os 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
"rand_pcg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
"rand_xorshift 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@@ -525,7 +508,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
"rand_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@@ -538,7 +521,7 @@ dependencies = [
"libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
"rand_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
"rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@@ -579,18 +562,6 @@ dependencies = [
"redox_syscall 0.1.54 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "regex"
version = "0.2.11"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"aho-corasick 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
"memchr 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
"regex-syntax 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
"thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
"utf8-ranges 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
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[[package]]
name = "regex"
version = "1.1.6"
@@ -603,14 +574,6 @@ dependencies = [
"utf8-ranges 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "regex-syntax"
version = "0.5.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"ucd-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "regex-syntax"
version = "0.6.6"
@@ -629,14 +592,14 @@ dependencies = [
[[package]]
name = "rustlings"
version = "2.0.0"
version = "2.2.0"
dependencies = [
"assert_cmd 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)",
"clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
"console 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
"console 0.7.7 (registry+https://github.com/rust-lang/crates.io-index)",
"glob 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
"indicatif 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
"notify 4.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
"indicatif 0.10.3 (registry+https://github.com/rust-lang/crates.io-index)",
"notify 4.0.15 (registry+https://github.com/rust-lang/crates.io-index)",
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"regex 1.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
"serde 1.0.92 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -806,7 +769,7 @@ version = "2.2.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"same-file 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi-util 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -817,7 +780,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "winapi"
version = "0.3.7"
version = "0.3.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -839,7 +802,7 @@ name = "winapi-util"
version = "0.1.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
"winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@@ -857,7 +820,6 @@ dependencies = [
]
[metadata]
"checksum aho-corasick 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)" = "81ce3d38065e618af2d7b77e10c5ad9a069859b4be3c2250f674af3840d9c8a5"
"checksum aho-corasick 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)" = "e6f484ae0c99fec2e858eb6134949117399f222608d84cadb3f58c1f97c2364c"
"checksum ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ee49baf6cb617b853aa8d93bf420db2383fab46d314482ca2803b40d5fde979b"
"checksum assert_cmd 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2dc477793bd82ec39799b6f6b3df64938532fdf2ab0d49ef817eac65856a5a1e"
@@ -866,11 +828,10 @@ dependencies = [
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"checksum cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "b486ce3ccf7ffd79fdeb678eac06a9e6c09fc88d33836340becb8fffe87c5e33"
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"checksum escargot 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ceb9adbf9874d5d028b5e4c5739d22b71988252b25c9c98fe7cf9738bee84597"
@@ -882,13 +843,12 @@ dependencies = [
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"checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
"checksum lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "76f033c7ad61445c5b347c7382dd1237847eb1bce590fe50365dcb33d546be73"
"checksum lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bc5729f27f159ddd61f4df6228e827e86643d4d3e7c32183cb30a1c08f604a14"
"checksum lazycell 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b294d6fa9ee409a054354afc4352b0b9ef7ca222c69b8812cbea9e7d2bf3783f"
"checksum libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)" = "6281b86796ba5e4366000be6e9e18bf35580adf9e63fbe2294aadb587613a319"
@@ -900,8 +860,9 @@ dependencies = [
"checksum miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8c1f2f3b1cf331de6896aabf6e9d55dca90356cc9960cca7eaaf408a355ae919"
"checksum net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)" = "42550d9fb7b6684a6d404d9fa7250c2eb2646df731d1c06afc06dcee9e1bcf88"
"checksum normalize-line-endings 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "2e0a1a39eab95caf4f5556da9289b9e68f0aafac901b2ce80daaf020d3b733a8"
"checksum notify 4.0.12 (registry+https://github.com/rust-lang/crates.io-index)" = "3572d71f13ea8ed41867accd971fd564aa75934cf7a1fae03ddb8c74a8a49943"
"checksum notify 4.0.15 (registry+https://github.com/rust-lang/crates.io-index)" = "80ae4a7688d1fab81c5bf19c64fc8db920be8d519ce6336ed4e7efe024724dbd"
"checksum num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "6ba9a427cfca2be13aa6f6403b0b7e7368fe982bfa16fccc450ce74c46cd9b32"
"checksum number_prefix 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "dbf9993e59c894e3c08aa1c2712914e9e6bf1fcbfc6bef283e2183df345a4fee"
"checksum numtoa 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b8f8bdf33df195859076e54ab11ee78a1b208382d3a26ec40d142ffc1ecc49ef"
"checksum parking_lot 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fa7767817701cce701d5585b9c4db3cdd02086398322c1d7e8bf5094a96a2ce7"
"checksum parking_lot_core 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "cb88cb1cb3790baa6776844f968fea3be44956cf184fa1be5a03341f5491278c"
@@ -923,9 +884,7 @@ dependencies = [
"checksum rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "678054eb77286b51581ba43620cc911abf02758c91f93f479767aed0f90458b2"
"checksum redox_syscall 0.1.54 (registry+https://github.com/rust-lang/crates.io-index)" = "12229c14a0f65c4f1cb046a3b52047cdd9da1f4b30f8a39c5063c8bae515e252"
"checksum redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7e891cfe48e9100a70a3b6eb652fef28920c117d366339687bd5576160db0f76"
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"checksum regex 1.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "8f0a0bcab2fd7d1d7c54fa9eae6f43eddeb9ce2e7352f8518a814a4f65d60c58"
"checksum regex-syntax 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)" = "7d707a4fa2637f2dca2ef9fd02225ec7661fe01a53623c1e6515b6916511f7a7"
"checksum regex-syntax 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)" = "dcfd8681eebe297b81d98498869d4aae052137651ad7b96822f09ceb690d0a96"
"checksum rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
"checksum ryu 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "b96a9549dc8d48f2c283938303c4b5a77aa29bfbc5b54b084fb1630408899a8f"
@@ -953,7 +912,7 @@ dependencies = [
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8
Cargo.toml
View File

@@ -1,14 +1,14 @@
[package]
name = "rustlings"
version = "2.0.0"
version = "2.2.0"
authors = ["Marisa <mokou@posteo.de>", "Carol (Nichols || Goulding) <carol.nichols@gmail.com"]
edition = "2018"
[dependencies]
clap = "2.32.0"
indicatif = "0.9.0"
console = "0.6.2"
notify = "4.0.0"
indicatif = "0.10.3"
console = "0.7.7"
notify = "4.0.15"
toml = "0.4.10"
regex = "1.1.6"
serde = {version = "1.0.10", features = ["derive"]}

10
README.md
View File

@@ -33,7 +33,13 @@ This will install Rustlings and give you access to the `rustlings` command. Run
## Windows
You can run:
First, set `ExecutionPolicy` to `RemoteSigned`:
```ps
Set-ExecutionPolicy RemoteSigned
```
Then, you can run:
```ps
Invoke-WebRequest https://git.io/rustlings-win | Select-Object -ExpandProperty Content | Out-File $env:TMP/install_rustlings.ps1; Unblock-File $env:TMP/install_rustlings.ps1; Invoke-Expression $env:TMP/install_rustlings.ps1
@@ -48,7 +54,7 @@ Basically: Clone the repository, checkout to the latest tag, run `cargo install`
```bash
git clone https://github.com/rust-lang/rustlings
cd rustlings
git checkout tags/2.0.0 # or whatever the latest version is (find out at https://github.com/rust-lang/rustlings/releases/latest)
git checkout tags/2.2.0 # or whatever the latest version is (find out at https://github.com/rust-lang/rustlings/releases/latest)
cargo install --force --path .
```

20
exercises/conversions/README.md Normal file
View File

@@ -0,0 +1,20 @@
### Type conversions
Rust offers a multitude of ways to convert a value of a given type into another type.
The simplest form of type conversion is a type cast expression. It is denoted with the binary operator `as`. For instance, `println!("{}", 1 + 1.0);` would not compile, since `1` is an integer while `1.0` is a float. However, `println!("{}", 1 as f32 + 1.0)` should compile. The exercise [`using_as`](using_as.rs) tries to cover this.
Rust also offers traits that facilitate type conversions upon implementation. These traits can be found under the [`convert`](https://doc.rust-lang.org/std/convert/index.html) module.
The traits are the following:
- `From` and `Into` covered in [`from_into`](from_into.rs)
- `TryFrom` and `TryInto` covered in [`try_from_into`](try_from_into.rs)
- `AsRef` and `AsMut` covered in [`as_ref_mut`](as_ref_mut.rs)
Furthermore, the `std::str` module offers a trait called [`FromStr`](https://doc.rust-lang.org/std/str/trait.FromStr.html) which helps with converting strings into target types via the `parse` method on strings. If properly implemented for a given type `Person`, then `let p: Person = "Mark,20".parse().unwrap()` should both compile and run without panicking.
These should be the main ways ***within the standard library*** to convert data into your desired types.
#### Book Sections
These are not directly covered in the book, but the standard library has great documentation for [conversions here](https://doc.rust-lang.org/std/convert/index.html). The `FromStr` trait is also covered [here](https://doc.rust-lang.org/std/str/trait.FromStr.html).

40
exercises/conversions/as_ref_mut.rs Normal file
View File

@@ -0,0 +1,40 @@
// AsRef and AsMut allow for cheap reference-to-reference conversions.
// Read more about them at https://doc.rust-lang.org/std/convert/trait.AsRef.html
// and https://doc.rust-lang.org/std/convert/trait.AsMut.html, respectively.
// I AM NOT DONE
// Obtain the number of bytes (not characters) in the given argument
// Add the AsRef trait appropriately as a trait bound
fn byte_counter<T>(arg: T) -> usize {
arg.as_ref().as_bytes().len()
}
// I AM NOT DONE
// Obtain the number of characters (not bytes) in the given argument
// Add the AsRef trait appropriately as a trait bound
fn char_counter<T>(arg: T) -> usize {
arg.as_ref().chars().count()
}
fn main() {
let s = "Café au lait";
println!("{}", char_counter(s));
println!("{}", byte_counter(s));
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn different_counts() {
let s = "Café au lait";
assert_ne!(char_counter(s), byte_counter(s));
}
#[test]
fn same_counts() {
let s = "Cafe au lait";
assert_eq!(char_counter(s), byte_counter(s));
}
}

73
exercises/conversions/from_into.rs Normal file
View File

@@ -0,0 +1,73 @@
// The From trait is used for value-to-value conversions.
// If From is implemented correctly for a type, the Into trait should work conversely.
// You can read more about it at https://doc.rust-lang.org/std/convert/trait.From.html
#[derive(Debug)]
struct Person {
name: String,
age: usize,
}
// We implement the Default trait to use it as a fallback
// when the provided string is not convertible into a Person object
impl Default for Person {
fn default() -> Person {
Person {
name: String::from("John"),
age: 30,
}
}
}
// I AM NOT DONE
// Your task is to complete this implementation
// in order for the line `let p = Person::from("Mark,20")` to compile
// Please note that you'll need to parse the age component into a `usize`
// with something like `"4".parse::<usize>()`. The outcome of this needs to
// be handled appropriately.
//
// Steps:
// 1. If the length of the provided string is 0, then return the default of Person
// 2. Split the given string on the commas present in it
// 3. Extract the first element from the split operation and use it as the name
// 4. Extract the other element from the split operation and parse it into a `usize` as the age
// If while parsing the age, something goes wrong, then return the default of Person
// Otherwise, then return an instantiated Person onject with the results
impl From<&str> for Person {
fn from(s: &str) -> Person {
}
}
fn main() {
// Use the `from` function
let p1 = Person::from("Mark,20");
// Since From is implemented for Person, we should be able to use Into
let p2: Person = "Gerald,70".into();
println!("{:?}", p1);
println!("{:?}", p2);
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_default() {
// Test that the default person is 30 year old John
let dp = Person::default();
assert_eq!(dp.name, "John");
assert_eq!(dp.age, 30);
}
#[test]
fn test_bad_convert() {
// Test that John is returned when bad string is provided
let p = Person::from("");
assert_eq!(p.name, "John");
assert_eq!(p.age, 30);
}
#[test]
fn test_good_convert() {
// Test that "Mark,20" works
let p = Person::from("Mark,20");
assert_eq!(p.name, "Mark");
assert_eq!(p.age, 20);
}
}

49
exercises/conversions/from_str.rs Normal file
View File

@@ -0,0 +1,49 @@
// This does practically the same thing that TryFrom<&str> does.
// Additionally, upon implementing FromStr, you can use the `parse` method
// on strings to generate an object of the implementor type.
// You can read more about it at https://doc.rust-lang.org/std/str/trait.FromStr.html
use std::str::FromStr;
#[derive(Debug)]
struct Person {
name: String,
age: usize,
}
// I AM NOT DONE
// Steps:
// 1. If the length of the provided string is 0, then return an error
// 2. Split the given string on the commas present in it
// 3. Extract the first element from the split operation and use it as the name
// 4. Extract the other element from the split operation and parse it into a `usize` as the age
// If while parsing the age, something goes wrong, then return an error
// Otherwise, then return a Result of a Person object
impl FromStr for Person {
type Err = String;
fn from_str(s: &str) -> Result<Person, Self::Err> {
}
}
fn main() {
let p = "Mark,20".parse::<Person>().unwrap();
println!("{:?}", p);
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn empty_input() {
assert!("".parse::<Person>().is_err());
}
#[test]
fn good_input() {
assert!("John,32".parse::<Person>().is_ok());
}
#[test]
#[should_panic]
fn missing_age() {
"John".parse::<Person>().unwrap();
}
}

71
exercises/conversions/try_from_into.rs Normal file
View File

@@ -0,0 +1,71 @@
// TryFrom is a simple and safe type conversion that may fail in a controlled way under some circumstances.
// Basically, this is the same as From. The main difference is that this should return a Result type
// instead of the target type itself.
// You can read more about it at https://doc.rust-lang.org/std/convert/trait.TryFrom.html
use std::convert::{TryInto, TryFrom};
#[derive(Debug)]
struct Person {
name: String,
age: usize,
}
// I AM NOT DONE
// Your task is to complete this implementation
// in order for the line `let p = Person::try_from("Mark,20")` to compile
// and return an Ok result of inner type Person.
// Please note that you'll need to parse the age component into a `usize`
// with something like `"4".parse::<usize>()`. The outcome of this needs to
// be handled appropriately.
//
// Steps:
// 1. If the length of the provided string is 0, then return an error
// 2. Split the given string on the commas present in it
// 3. Extract the first element from the split operation and use it as the name
// 4. Extract the other element from the split operation and parse it into a `usize` as the age
// If while parsing the age, something goes wrong, then return an error
// Otherwise, then return a Result of a Person object
impl TryFrom<&str> for Person {
type Error = String;
fn try_from(s: &str) -> Result<Self, Self::Error> {
}
}
fn main() {
// Use the `from` function
let p1 = Person::try_from("Mark,20");
// Since From is implemented for Person, we should be able to use Into
let p2: Result<Person, _> = "Gerald,70".try_into();
println!("{:?}", p1);
println!("{:?}", p2);
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_bad_convert() {
// Test that John is returned when bad string is provided
let p = Person::try_from("");
assert!(p.is_err());
}
#[test]
fn test_good_convert() {
// Test that "Mark,20" works
let p = Person::try_from("Mark,20");
assert!(p.is_ok());
let p = p.unwrap();
assert_eq!(p.name, "Mark");
assert_eq!(p.age, 20);
}
#[test]
#[should_panic]
fn test_panic_empty_input() {
let p: Person = "".try_into().unwrap();
}
#[test]
#[should_panic]
fn test_panic_bad_age() {
let p = Person::try_from("Mark,twenty").unwrap();
}
}

17
exercises/conversions/using_as.rs Normal file
View File

@@ -0,0 +1,17 @@
// Type casting in Rust is done via the usage of the `as` operator.
// Please note that the `as` operator is not only used when type casting.
// It also helps with renaming imports.
// I AM NOT DONE
// The goal is to make sure that the division does not fail to compile
fn average(values: &[f64]) -> f64 {
let total = values
.iter()
.fold(0.0, |a, b| a + b);
total / values.len()
}
fn main() {
let values = [3.5, 0.3, 13.0, 11.7];
println!("{}", average(&values));
}

5
exercises/enums/README.md
View File

@@ -1,7 +1,10 @@
### Enums
Rust allows you to define a type called `enums` which allow you to enumerate possible values. In combination with enums, we have the concept of `pattern matching` in Rust, which makes it easy to run different code for different values of an enumeration. Enums, while available in many languages, Rust's enums are most similar to `algebraic data types` in functional languages, such as F#, OCaml, and Haskell.
Rust allows you to define types called "enums" which enumerate possible values.
Enums are a feature in many languages, but their capabilities differ in each language. Rust’s enums are most similar to algebraic data types in functional languages, such as F#, OCaml, and Haskell.
Useful in combination with enums is Rust's "pattern matching" facility, which makes it easy to run different code for different values of an enumeration.
#### Book Sections
- [Enums](https://doc.rust-lang.org/book/ch06-00-enums.html)
- [Pattern syntax](https://doc.rust-lang.org/book/ch18-03-pattern-syntax.html)

2
exercises/functions/functions4.rs
View File

@@ -2,7 +2,7 @@
// Make me compile! Execute `rustlings hint functions4` for hints :)
// This store is having a sale where if the price is an even number, you get
// 10 (money unit) off, but if it's an odd number, it's 3 (money unit) less.
// 10 Rustbucks off, but if it's an odd number, it's 3 Rustbucks off.
// I AM NOT DONE

2
exercises/move_semantics/move_semantics2.rs
View File

@@ -1,5 +1,5 @@
// move_semantics2.rs
// Make me compile without changing line 10!
// Make me compile without changing line 13!
// Execute `rustlings hint move_semantics2` for hints :)
// I AM NOT DONE

6
exercises/primitive_types/primitive_types4.rs
View File

@@ -1,11 +1,11 @@
// primitive_types4.rs
// Get a slice out of Array a where the ??? is so that the `if` statement
// returns true. Execute `rustlings hint primitive_types4` for hints!!
// Get a slice out of Array a where the ??? is so that the test passes.
// Execute `rustlings hint primitive_types4` for hints!!
// I AM NOT DONE
#[test]
fn main() {
fn slice_out_of_array() {
let a = [1, 2, 3, 4, 5];
let nice_slice = ???

2
exercises/standard_library_types/README.md
View File

@@ -1,5 +1,5 @@
For the Arc exercise check out the chapter [Shared-State Concurrency](https://doc.rust-lang.org/book/ch16-03-shared-state.html) of the Rust Book.
For the Iterator exercise check out the chapters [Iterator](https://doc.rust-lang.org/book/ch13-02-iterators.html) of the Rust Book and the [Iterator documentation](https://doc.rust-lang.org/stable/std/iter/).
Do not adjust your monitors-- iterators 1 and 2 are indeed missing. Iterator 3 is a bit challenging so we're leaving space for some exercises to lead up to it!
Do not adjust your monitors-- iterators1.rs is indeed missing. Iterators is a challenging topic, so we're leaving space for a simpler exercise!

4
exercises/standard_library_types/arc1.rs
View File

@@ -1,8 +1,8 @@
// arc1.rs
// Make this code compile by filling in a value for `shared_numbers` where the
// TODO comment is and creating an initial binding for `child_numbers`
// TODO comment is and create an initial binding for `child_numbers`
// somewhere. Try not to create any copies of the `numbers` Vec!
// Execute `rustlings help arc1` for hints :)
// Execute `rustlings hint arc1` for hints :)
// I AM NOT DONE

2
exercises/test1.rs
View File

@@ -3,7 +3,7 @@
// - Variables
// - Functions
// Mary is buying apples. One apple usually costs 2 dollars, but if you buy
// Mary is buying apples. One apple usually costs 2 Rustbucks, but if you buy
// more than 40 at once, each apple only costs 1! Write a function that calculates
// the price of an order of apples given the order amount. No hints this time!

15
exercises/test4.rs
View File

@@ -7,8 +7,17 @@
// I AM NOT DONE
fn main() {
if my_macro!("world!") != "Hello world!" {
panic!("Oh no! Wrong output!");
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_my_macro_world() {
assert_eq!(my_macro!("world!"), "Hello world!");
}
#[test]
fn test_my_macro_goodbye() {
assert_eq!(my_macro!("goodbye!"), "Hello goodbye!");
}
}

2
exercises/tests/tests1.rs
View File

@@ -1,7 +1,7 @@
// tests1.rs
// Tests are important to ensure that your code does what you think it should do.
// Tests can be run on this file with the following command:
// rustlings run --test exercises/tests/tests1.rs
// rustlings run tests1
// This test has a problem with it -- make the test compile! Make the test
// pass! Make the test fail! Execute `rustlings hint tests1` for hints :)

2
exercises/threads/threads1.rs
View File

@@ -1,6 +1,6 @@
// threads1.rs
// Make this compile! Execute `rustlings hint threads1` for hints :)
// The idea is the thread spawned on line 19 is completing jobs while the main thread is
// The idea is the thread spawned on line 21 is completing jobs while the main thread is
// monitoring progress until 10 jobs are completed. If you see 6 lines
// of "waiting..." and the program ends without timing out when running,
// you've got it :)

44
exercises/traits/traits1.rs Normal file
View File

@@ -0,0 +1,44 @@
// traits1.rs
// Time to implement some traits!
//
// Your task is to implement the trait
// `AppendBar' for the type `String'.
//
// The trait AppendBar has only one function,
// which appends "Bar" to any object
// implementing this trait.
// I AM NOT DONE
trait AppendBar {
fn append_bar(self) -> Self;
}
impl AppendBar for String {
//Add your code here
}
fn main() {
let s = String::from("Foo");
let s = s.append_bar();
println!("s: {}", s);
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn is_FooBar() {
assert_eq!(String::from("Foo").append_bar(), String::from("FooBar"));
}
#[test]
fn is_BarBar() {
assert_eq!(
String::from("").append_bar().append_bar(),
String::from("BarBar")
);
}
}

35
exercises/traits/traits2.rs Normal file
View File

@@ -0,0 +1,35 @@
// traits2.rs
//
// Your task is to implement the trait
// `AppendBar' for a vector of strings.
//
// To implement this trait, consider for
// a moment what it means to 'append "Bar"'
// to a vector of strings.
//
// No boiler plate code this time,
// you can do this!
// I AM NOT DONE
trait AppendBar {
fn append_bar(self) -> Self;
}
//TODO: Add your code here
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn is_vec_pop_eq_bar() {
let mut foo = vec![String::from("Foo")].append_bar();
assert_eq!(foo.pop().unwrap(), String::from("Bar"));
assert_eq!(foo.pop().unwrap(), String::from("Foo"));
}
}

2
exercises/variables/variables1.rs
View File

@@ -4,7 +4,7 @@
// About this `I AM NOT DONE` thing:
// We sometimes encourage you to keep trying things on a given exercise,
// even after you already figured it out. If you got everything working and
// feel ready for the next exercise, you the `I AM NOT DONE` comment below.
// feel ready for the next exercise, remove the `I AM NOT DONE` comment below.
// I AM NOT DONE

11
exercises/variables/variables5.rs Normal file
View File

@@ -0,0 +1,11 @@
// variables5.rs
// Make me compile! Execute the command `rustlings hint variables5` if you want a hint :)
// I AM NOT DONE
fn main() {
let number = "3";
println!("Number {}", number);
number = 3;
println!("Number {}", number);
}

100
info.toml
View File

@@ -5,7 +5,7 @@ name = "variables1"
path = "exercises/variables/variables1.rs"
mode = "compile"
hint = """
Hint: The declaration on line 5 is missing a keyword that is needed in Rust
Hint: The declaration on line 12 is missing a keyword that is needed in Rust
to create a new variable binding."""
[[exercises]]
@@ -15,7 +15,7 @@ mode = "compile"
hint = """
The compiler message is saying that Rust cannot infer the type that the
variable binding `x` has with what is given here.
What happens if you annotate line 5 with a type annotation?
What happens if you annotate line 7 with a type annotation?
What if you give x a value?
What if you do both?
What type should x be, anyway?
@@ -36,11 +36,25 @@ path = "exercises/variables/variables4.rs"
mode = "compile"
hint = """
Oops! In this exercise, we have a variable binding that we've created on
line 5, and we're trying to use it on line 6, but we haven't given it a
line 7, and we're trying to use it on line 8, but we haven't given it a
value. We can't print out something that isn't there; try giving x a value!
This is an error that can cause bugs that's very easy to make in any
programming language -- thankfully the Rust compiler has caught this for us!"""
[[exercises]]
name = "variables5"
path = "exercises/variables/variables5.rs"
mode = "compile"
hint = """
In variables3 we already learned how to make an immutable variable mutable
using a special keyword. Unfortunately this doesn't help us much in this exercise
because we want to assign a different typed value to an existing variable. Sometimes
you may also like to reuse existing variable names because you are just converting
values to different types like in this exercise.
Fortunately Rust has a powerful solution to this problem: 'Shadowing'!
You can read more about 'Shadowing' in the book's section 'Variables and Mutability'.
Try to solve this exercise afterwards using this technique."""
# IF
[[exercises]]
@@ -90,7 +104,7 @@ name = "functions4"
path = "exercises/functions/functions4.rs"
mode = "compile"
hint = """
The error message points to line 12 and says it expects a type after the
The error message points to line 14 and says it expects a type after the
`->`. This is where the function's return type should be-- take a look at
the `is_even` function for an example!"""
@@ -152,8 +166,8 @@ https://doc.rust-lang.org/book/ch04-03-slices.html
and use the starting and ending indices of the items in the Array
that you want to end up in the slice.
If you're curious why the right hand of the `==` comparison does not
have an ampersand for a reference since the left hand side is a
If you're curious why the first argument of `assert_eq!` does not
have an ampersand for a reference since the second argument is a
reference, take a look at the Deref coercions section of the book:
https://doc.rust-lang.org/book/ch15-02-deref.html"""
@@ -214,7 +228,7 @@ mode = "compile"
hint = """
Yes, it would be really easy to fix this by just changing the value bound to `word` to be a
string slice instead of a `String`, wouldn't it?? There is a way to add one character to line
6, though, that will coerce the `String` into a string slice."""
9, though, that will coerce the `String` into a string slice."""
# TEST 2
@@ -355,7 +369,7 @@ The way macros are written, it wants to see something between each
[[exercises]]
name = "test4"
path = "exercises/test4.rs"
mode = "compile"
mode = "test"
hint = "No hints this time ;)"
# MOVE SEMANTICS
@@ -365,8 +379,8 @@ name = "move_semantics1"
path = "exercises/move_semantics/move_semantics1.rs"
mode = "compile"
hint = """
So you've got the "cannot borrow immutable local variable `vec1` as mutable" error on line 11,
right? The fix for this is going to be adding one keyword, and the addition is NOT on line 11
So you've got the "cannot borrow immutable local variable `vec1` as mutable" error on line 13,
right? The fix for this is going to be adding one keyword, and the addition is NOT on line 13
where the error is."""
[[exercises]]
@@ -375,8 +389,8 @@ path = "exercises/move_semantics/move_semantics2.rs"
mode = "compile"
hint = """
So `vec0` is being *moved* into the function `fill_vec` when we call it on
line 7, which means it gets dropped at the end of `fill_vec`, which means we
can't use `vec0` again on line 10 (or anywhere else in `main` after the
line 10, which means it gets dropped at the end of `fill_vec`, which means we
can't use `vec0` again on line 13 (or anywhere else in `main` after the
`fill_vec` call for that matter). We could fix this in a few ways, try them
all!
1. Make another, separate version of the data that's in `vec0` and pass that
@@ -572,6 +586,28 @@ multiply the values into a mutable variable. Or you might write code more
functionally with recursion and a match clause. But you can also use ranges
and iterators to solve this in rust."""
# TRAITS
[[exercises]]
name = "traits1"
path = "exercises/traits/traits1.rs"
mode = "test"
hint = """
A discussion about Traits in Rust can be found at:
https://doc.rust-lang.org/1.30.0/book/second-edition/ch10-02-traits.html
"""
[[exercises]]
name = "traits2"
path = "exercises/traits/traits2.rs"
mode = "test"
hint = """
Notice how the trait takes ownership of 'self',and returns `Self'.
Try mutating the incoming string vector.
Vectors provide suitable methods for adding an element at the end. See
the documentation at: https://doc.rust-lang.org/std/vec/struct.Vec.html"""
# THREADS
[[exercises]]
@@ -610,3 +646,43 @@ answers and don't understand why they work and yours doesn't.
If you've learned from the sample solutions, I encourage you to come
back to this exercise and try it again in a few days to reinforce
what you've learned :)"""
# TYPE CONVERSIONS
[[exercises]]
name = "using_as"
path = "exercises/conversions/using_as.rs"
mode = "compile"
hint = """
Use the `as` operator to cast one of the operands in the last line of the
`average` function into the expected return type."""
[[exercises]]
name = "from_into"
path = "exercises/conversions/from_into.rs"
mode = "test"
hint = """
Follow the steps provided right before the `From` implementation"""
[[exercises]]
name = "try_from_into"
path = "exercises/conversions/try_from_into.rs"
mode = "test"
hint = """
Follow the steps provided right before the `From` implementation.
You can also use the example at https://doc.rust-lang.org/std/convert/trait.TryFrom.html"""
[[exercises]]
name = "as_ref_mut"
path = "exercises/conversions/as_ref_mut.rs"
mode = "test"
hint = """
Add AsRef<str> as a trait bound to the functions."""
[[exercises]]
name = "from_str"
path = "exercises/conversions/from_str.rs"
mode = "test"
hint = """
If you've already solved try_from_into.rs, then this is almost a copy-paste.
Otherwise, go ahead and solve try_from_into.rs first."""

8
install.sh
View File

@@ -7,7 +7,7 @@ if [ -x "$(command -v git)" ]
then
echo "SUCCESS: Git is installed"
else
echo "WARNING: Git does not seem to be installed."
echo "ERROR: Git does not seem to be installed."
echo "Please download Git using your package manager or over https://git-scm.com/!"
exit 1
fi
@@ -16,7 +16,7 @@ if [ -x "$(command -v rustc)" ]
then
echo "SUCCESS: Rust is installed"
else
echo "WARNING: Rust does not seem to be installed."
echo "ERROR: Rust does not seem to be installed."
echo "Please download Rust using https://rustup.rs!"
exit 1
fi
@@ -25,7 +25,7 @@ if [ -x "$(command -v cargo)" ]
then
echo "SUCCESS: Cargo is installed"
else
echo "WARNING: Cargo does not seem to be installed."
echo "ERROR: Cargo does not seem to be installed."
echo "Please download Rust and Cargo using https://rustup.rs!"
exit 1
fi
@@ -75,7 +75,7 @@ MinRustVersion=1.31
vercomp $RustVersion $MinRustVersion
if [ $? -eq 2 ]
then
echo "WARNING: Rust version is too old: $RustVersion - needs at least $MinRustVersion"
echo "ERROR: Rust version is too old: $RustVersion - needs at least $MinRustVersion"
echo "Please update Rust with 'rustup update'"
exit 1
else

55
src/main.rs
View File

@@ -2,13 +2,17 @@ use crate::exercise::{Exercise, ExerciseList};
use crate::run::run;
use crate::verify::verify;
use clap::{crate_version, App, Arg, SubCommand};
use console::Emoji;
use notify::DebouncedEvent;
use notify::{RecommendedWatcher, RecursiveMode, Watcher};
use std::ffi::OsStr;
use std::fs;
use std::io;
use std::path::Path;
use std::process::{Command, Stdio};
use std::sync::mpsc::channel;
use std::sync::{Arc, Mutex};
use std::thread;
use std::time::Duration;
mod exercise;
@@ -99,7 +103,21 @@ fn main() {
}
if matches.subcommand_matches("watch").is_some() {
watch(&exercises).unwrap();
if watch(&exercises).is_ok() {
println!(
"{emoji} All exercises completed! {emoji}",
emoji = Emoji("🎉", "★")
);
println!("");
println!("We hope you enjoyed learning about the various aspects of Rust!");
println!(
"If you noticed any issues, please don't hesitate to report them to our repo."
);
println!("You can also contribute your own exercises to help the greater community!");
println!("");
println!("Before reporting an issue or contributing, please read our guidelines:");
println!("https://github.com/rust-lang/rustlings/blob/master/CONTRIBUTING.md");
}
}
if matches.subcommand_name().is_none() {
@@ -108,6 +126,26 @@ fn main() {
}
}
fn spawn_watch_shell(failed_exercise_hint: &Arc<Mutex<Option<String>>>) {
let failed_exercise_hint = Arc::clone(failed_exercise_hint);
println!("Type 'hint' to get help");
thread::spawn(move || loop {
let mut input = String::new();
match io::stdin().read_line(&mut input) {
Ok(_) => {
if input.trim().eq("hint") {
if let Some(hint) = &*failed_exercise_hint.lock().unwrap() {
println!("{}", hint);
}
} else {
println!("unknown command: {}", input);
}
}
Err(error) => println!("error reading command: {}", error),
}
});
}
fn watch(exercises: &[Exercise]) -> notify::Result<()> {
/* Clears the terminal with an ANSI escape code.
Works in UNIX and newer Windows terminals. */
@@ -121,8 +159,13 @@ fn watch(exercises: &[Exercise]) -> notify::Result<()> {
watcher.watch(Path::new("./exercises"), RecursiveMode::Recursive)?;
clear_screen();
let _ignored = verify(exercises.iter());
let to_owned_hint = |t: &Exercise| t.hint.to_owned();
let failed_exercise_hint = match verify(exercises.iter()) {
Ok(_) => return Ok(()),
Err(exercise) => Arc::new(Mutex::new(Some(to_owned_hint(exercise)))),
};
spawn_watch_shell(&failed_exercise_hint);
loop {
match rx.recv() {
Ok(event) => match event {
@@ -133,7 +176,13 @@ fn watch(exercises: &[Exercise]) -> notify::Result<()> {
.iter()
.skip_while(|e| !filepath.ends_with(&e.path));
clear_screen();
let _ignored = verify(pending_exercises);
match verify(pending_exercises) {
Ok(_) => return Ok(()),
Err(exercise) => {
let mut failed_exercise_hint = failed_exercise_hint.lock().unwrap();
*failed_exercise_hint = Some(to_owned_hint(exercise));
}
}
}
}
_ => {}

12
src/verify.rs
View File

@@ -2,14 +2,14 @@ use crate::exercise::{Exercise, Mode, State};
use console::{style, Emoji};
use indicatif::ProgressBar;
pub fn verify<'a>(start_at: impl IntoIterator<Item = &'a Exercise>) -> Result<(), ()> {
pub fn verify<'a>(start_at: impl IntoIterator<Item = &'a Exercise>) -> Result<(), &'a Exercise> {
for exercise in start_at {
let is_done = match exercise.mode {
Mode::Test => compile_and_test_interactively(&exercise)?,
Mode::Compile => compile_only(&exercise)?,
let compile_result = match exercise.mode {
Mode::Test => compile_and_test_interactively(&exercise),
Mode::Compile => compile_only(&exercise),
};
if !is_done {
return Err(());
if !compile_result.unwrap_or(false) {
return Err(exercise);
}
}
Ok(())