├── arrays.hack
├── while.hack
├── if.hack
├── hello.hack
├── function.hack
├── class.hack
├── for.hack
├── .gitignore
├── switch.hack
├── attributes.hack
├── LICENSE
└── README.md


/arrays.hack:
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1 | $v = vec[2, 1, 2];
2 | 
3 | $k = keyset[2, 1];
4 | 
5 | $d = dict['a' => 1, 'b' => 3];
6 | 


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/while.hack:
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1 | $i = 1;
2 | while ($i <= 10) {
3 |   echo "$i\t".($i * $i)."\n"; // output a table of squares
4 |   ++$i;
5 | }
6 | 


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/if.hack:
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1 | if ($x) {
2 |   echo "x is true";
3 | }
4 | if ($y) {
5 |   echo "y is true";
6 | } else {
7 |   echo "y is not true";
8 | }
9 | 


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/hello.hack:
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1 | use namespace HH\Lib\IO;
2 | 
3 | <<__EntryPoint>>
4 | async function main(): Awaitable<void> {
5 |   await IO\request_output()->writeAllAsync("Hello World!\n");
6 | }
7 | 


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/function.hack:
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1 | function sum_ints(int $val, int ...$vals): int {
2 |   $result = $val;
3 |   
4 |   foreach ($vals as $v) {
5 |     $result += $v;
6 |   }
7 |   return $result;
8 | }
9 | 


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/class.hack:
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 1 | class Counter {
 2 |   private int $i = 0;
 3 | 
 4 |   public function increment(): void {
 5 |     $this->i += 1;
 6 |   }
 7 | 
 8 |   public function get(): int {
 9 |     return $this->i;
10 |   }
11 | }
12 | 


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/for.hack:
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 1 | for ($i = 1; $i <= 5; ++$i) {
 2 |   echo "$i\t".($i * $i)."\n"; // output a table of squares
 3 | }
 4 | 
 5 | $i = 1;
 6 | for (; $i <= 5; ) {
 7 |   echo "$i\t".($i * $i)."\n"; // output a table of squares
 8 |   ++$i;
 9 | }
10 | 
11 | $i = 1;
12 | for (; ; ) {
13 |   if ($i > 5)
14 |     break;
15 |   echo "$i\t".($i * $i)."\n"; // output a table of squares
16 |   ++$i;
17 | }
18 | 


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/.gitignore:
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 1 | # Prerequisites
 2 | *.d
 3 | 
 4 | # Compiled Object files
 5 | *.slo
 6 | *.lo
 7 | *.o
 8 | *.obj
 9 | 
10 | # Precompiled Headers
11 | *.gch
12 | *.pch
13 | 
14 | # Compiled Dynamic libraries
15 | *.so
16 | *.dylib
17 | *.dll
18 | 
19 | # Fortran module files
20 | *.mod
21 | *.smod
22 | 
23 | # Compiled Static libraries
24 | *.lai
25 | *.la
26 | *.a
27 | *.lib
28 | 
29 | # Executables
30 | *.exe
31 | *.out
32 | *.app
33 | 


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/switch.hack:
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 1 | enum Bank: int {
 2 |   DEPOSIT = 1;
 3 |   WITHDRAWAL = 2;
 4 |   TRANSFER = 3;
 5 | }
 6 | 
 7 | function processTransaction(Transaction $t): void {
 8 |   $trType = ...;     // get the transaction type as an enum value
 9 |   switch ($trType) {
10 | 
11 |   case Bank::TRANSFER:
12 |     ...
13 |     break;
14 |   case Bank::DEPOSIT:
15 |     ...
16 |     break;
17 |   case Bank::WITHDRAWAL:
18 |     ...
19 |     break;
20 |   }
21 | }
22 | 


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/attributes.hack:
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 1 | <<__ConsistentConstruct>>
 2 | class OtherClass {
 3 |   <<__Memoize, __Deprecated("Use FooClass methods instead")>>
 4 |   public function addOne(int $x): int {
 5 |     return $x + 1;
 6 |   }
 7 | }
 8 | 
 9 | class Contributors implements HH\ClassAttribute {
10 |   public function __construct(private string $author, private ?keyset<string> $maintainers = null) {}
11 |   public function getAuthor(): string {
12 |     return $this->author;
13 |   }
14 |   public function getMaintainers(): keyset<string> {
15 |     return $this->maintainers ?? keyset[$this->author];
16 |   }
17 | }
18 | 
19 | <<Contributors("John Doe", keyset["ORM Team", "Core Library Team"])>>
20 | class MyClass {}
21 | 
22 | <<Contributors("You")>>
23 | class YourClass {}
24 |     
25 | 


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/LICENSE:
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 1 | MIT License
 2 | 
 3 | Copyright (c) 2022 Pourya
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 


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/README.md:
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 1 | # Hack-Programming-Language
 2 | 
 3 | 
 4 | ## 1. Installation
 5 | 
 6 | The HHVM package includes everything you need to work with Hack, including the runtime and typechecker.
 7 | 
 8 | See the HHVM installation page to find the package relevant for your platform.
 9 | 
10 | 
11 | ## 2. Initialize A Project
12 | 
13 | Create a directory with a .hhconfig file in it. This will be the root of your project.
14 | 
15 | ```
16 | $ mkdir my_project
17 | $ cd my_project
18 | $ touch .hhconfig
19 | ```
20 | 
21 | ## 3. Write Your First Hack Program
22 | Create a file called my_project/hello.hack with the following code:
23 | 
24 | ```
25 | use namespace HH\Lib\IO;
26 | 
27 | <<__EntryPoint>>
28 | async function main(): Awaitable<void> {
29 |   await IO\request_output()->writeAllAsync("Hello World!\n");
30 | }
31 | ```
32 | 
33 | ## 4. Run The Typechecker
34 | 
35 | Normally you'll get type errors and hover information from within your IDE. You can also run the typechecker directly to confirm that you have no type errors in any files in your project.
36 | 
37 | ```
38 | $ cd my_project
39 | $ hh_client
40 | No errors!
41 | ```
42 | 
43 | 
44 | ## 5. Run Your Program
45 | 
46 | HHVM provides the Hack runtime. You can run your program as follows:
47 | 
48 | ```
49 | $ cd my_project
50 | $ hhvm hello.hack
51 | Hello World!
52 | ```
53 | 
54 | ## 6. Run A Website
55 | 
56 | Normally you'll start HHVM as a webserver, and it will automatically pick up any changes to files you make.
57 | 
58 | ```
59 | $ cd my_project
60 | $ hhvm -m server -p 8080
61 | ```
62 | 
63 | You can now visit http://localhost:8080/hello.hack to see "Hello World!" in your browser.
64 | 


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