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stringlengths 0
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Hack | hhvm/hphp/hack/test/extracted_from_manual/04-statements/08-switch-01.hack | // @generated by hh_manual from manual/hack/04-statements/08-switch.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
async function example_snippet_wrapper(): Awaitable<void> {
$v = 100;
switch ($v) {
case 20:
// ...
break;
case 10:
// ...
break;
case 30:
// ...
break;
default:
// ...
break;
}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/04-statements/08-switch-02.hack | // @generated by hh_manual from manual/hack/04-statements/08-switch.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
async function example_snippet_wrapper(): Awaitable<void> {
$v = 10;
switch ($v) {
case 10:
// ...
// FALLTHROUGH
case 30:
// ... // Handle 10 or 30
break;
default:
// ...
break;
}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/04-statements/08-switch-03.hack | // @generated by hh_manual from manual/hack/04-statements/08-switch.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
async function example_snippet_wrapper(): Awaitable<void> {
$v = 30;
switch ($v) {
case 30.0: // <===== this case matches with 30
// ...
break;
default:
// ...
break;
}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/04-statements/09-try-01.hack | // @generated by hh_manual from manual/hack/04-statements/09-try.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class MyException extends Exception {}
function demo(): void {
throw new MyException();
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/04-statements/09-try-02.hack | // @generated by hh_manual from manual/hack/04-statements/09-try.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
function do_it(int $x, int $y): void {
try {
$result = $x / $y;
echo "\$result = $result\n";
// ...
}
catch (DivisionByZeroException $ex) {
echo "Caught a DivisionByZeroException\n";
// ...
}
catch (Exception $ex) {
echo "Caught an Exception\n";
// ...
}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/04-statements/09-try-03.hack | // @generated by hh_manual from manual/hack/04-statements/09-try.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class DeviceException extends Exception { /*...*/ }
class DiskException extends DeviceException { /*...*/ }
class RemovableDiskException extends DiskException { /*...*/ }
class FloppyDiskException extends RemovableDiskException { /*...*/ }
function process(): void {
throw new DeviceException();
}
<<__EntryPoint>>
function main(): void {
try {
process(); // call a function that might generate a disk-related exception
} catch (FloppyDiskException $fde) {
echo "In handler for FloppyDiskException\n";
// ...
} catch (RemovableDiskException $rde) {
echo "In handler for RemovableDiskException\n";
// ...
} catch (DiskException $de) {
echo "In handler for DiskException\n";
// ...
} catch (DeviceException $dve) {
echo "In handler for DeviceException\n";
// ...
} finally {
echo "In finally block\n";
// perform some cleanup
}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/04-statements/10-use-use.hack | // @generated by hh_manual from manual/hack/04-statements/10-use.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
namespace UseNS {
const int CON = 100;
function f(): void {
echo "In function ".__FUNCTION__."\n";
}
class C {
public function f(): void {
echo "In method ".__METHOD__."\n";
}
}
class D {}
class E {}
}
namespace Hack\UserDocumentation\Statements\use\Examples\XXX {
const int CON2 = 500;
function f(): void {
echo "In function ".__FUNCTION__."\n";
}
}
namespace Hack\UserDocumentation\Statements\use\Examples\test {
use const UseNS\CON;
use function UseNS\f;
//use function Hack\UserDocumentation\Statements\use\Examples\XXX\f; // Error: name f already declared
use type UseNS\C;
use type UseNS\{D, E};
use namespace Hack\UserDocumentation\Statements\use\Examples\XXX;
<<__EntryPoint>>
function main(): void {
// access const CON by fully qualified and abbreviated names
echo "CON = ".\UseNS\CON."\n";
echo "CON = ".CON."\n";
// access function f by fully qualified and abbreviated names
\UseNS\f();
f();
// access type C by fully qualified and abbreviated names
$c = new \UseNS\C();
$c->f();
$c = new C();
$c->f();
// access type D by fully qualified and abbreviated names
$d = new \UseNS\D();
$d = new D();
// access name f by fully qualified and abbreviated names
\Hack\UserDocumentation\Statements\use\Examples\XXX\f();
XXX\f();
// access name CON2 by fully qualified and abbreviated names
echo "XXX\CON2 = ".
\Hack\UserDocumentation\Statements\use\Examples\XXX\CON2.
"\n";
echo "XXX\\CON2 = ".XXX\CON2."\n";
}
}
namespace {
use namespace Hack\UserDocumentation\Statements\use\Examples\XXX;
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/04-statements/12-while-01.hack | // @generated by hh_manual from manual/hack/04-statements/12-while.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
async function example_snippet_wrapper(): Awaitable<void> {
$i = 1;
while ($i <= 10) {
echo "$i\t".($i * $i)."\n"; // output a table of squares
++$i;
}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/05-functions/01-introduction-01.hack | // @generated by hh_manual from manual/hack/05-functions/01-introduction.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
function add_one(int $x): int {
return $x + 1;
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/05-functions/01-introduction-02.hack | // @generated by hh_manual from manual/hack/05-functions/01-introduction.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
function add_value(int $x, int $y = 1): int {
return $x + $y;
} |
hhvm/hphp/hack/test/extracted_from_manual/05-functions/01-introduction-03.hack_error | // @generated by hh_manual from manual/hack/05-functions/01-introduction.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
function add_value_bad(int $x = 1, int $y): int {
return $x + $y;
} |
|
Hack | hhvm/hphp/hack/test/extracted_from_manual/05-functions/01-introduction-04.hack | // @generated by hh_manual from manual/hack/05-functions/01-introduction.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
function apply_func(int $v, (function(int): int) $f): int {
return $f($v);
}
function usage_example(): void {
$x = apply_func(0, $x ==> $x + 1);
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/05-functions/01-introduction-05.hack | // @generated by hh_manual from manual/hack/05-functions/01-introduction.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
function takes_variadic_fun((function(int...): void) $f): void {
$f(1, 2, 3);
$args = vec[1, 2, 3];
$f(0, ...$args);
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/05-functions/01-introduction-sumints.hack | // @generated by hh_manual from manual/hack/05-functions/01-introduction.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
function sum_ints(int $val, int ...$vals): int {
$result = $val;
foreach ($vals as $v) {
$result += $v;
}
return $result;
}
async function example_snippet_wrapper1(): Awaitable<void> {
// Passing positional arguments.
sum_ints(1, 2, 3);
// You can also pass a collection into a variadic parameter.
$args = vec[1, 2, 3];
sum_ints(0, ...$args);
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/05-functions/02-anonymous-functions-01.hack | // @generated by hh_manual from manual/hack/05-functions/02-anonymous-functions.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
async function example_snippet_wrapper(): Awaitable<void> {
$f = $x ==> $x + 1;
$two = $f(1); // result of 2
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/05-functions/02-anonymous-functions-02.hack | // @generated by hh_manual from manual/hack/05-functions/02-anonymous-functions.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
async function example_snippet_wrapper(): Awaitable<void> {
$f = ($x, $y) ==> $x + $y;
$three = $f(1, 2); // result of 3
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/05-functions/02-anonymous-functions-03.hack | // @generated by hh_manual from manual/hack/05-functions/02-anonymous-functions.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
async function example_snippet_wrapper(): Awaitable<void> {
$x = 5;
$f = $x ==> $x + 1;
$six = $f($x); // pass by value
echo($six); // result of 6
echo("\n");
echo($x); // $x is unchanged; result of 5
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/05-functions/02-anonymous-functions-04.hack | // @generated by hh_manual from manual/hack/05-functions/02-anonymous-functions.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
async function example_snippet_wrapper(): Awaitable<void> {
$f = (int $x): int ==> $x + 1;
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/05-functions/02-anonymous-functions-05.hack | // @generated by hh_manual from manual/hack/05-functions/02-anonymous-functions.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
async function example_snippet_wrapper(): Awaitable<void> {
$f1 = $x ==> $x + 1;
$f2 = $x ==> { return $x + 1; };
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/05-functions/02-anonymous-functions-06.hack | // @generated by hh_manual from manual/hack/05-functions/02-anonymous-functions.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
async function example_snippet_wrapper(): Awaitable<void> {
$f = function($x) { return $x + 1; };
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/05-functions/02-anonymous-functions-07.hack | // @generated by hh_manual from manual/hack/05-functions/02-anonymous-functions.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
async function example_snippet_wrapper(): Awaitable<void> {
$y = 1;
$f = function($x) use($y) { return $x + $y; };
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/05-functions/02-anonymous-functions-08.hack | // @generated by hh_manual from manual/hack/05-functions/02-anonymous-functions.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
async function example_snippet_wrapper(): Awaitable<void> {
$y = 1;
$f = function(int $x): int use($y) { return $x + $y; };
} |
hhvm/hphp/hack/test/extracted_from_manual/05-functions/03-type-enforcement-01.hack_error | // @generated by hh_manual from manual/hack/05-functions/03-type-enforcement.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
function takes_int(int $_): void {}
function check_parameter(): void {
takes_int("not an int"); // runtime error.
}
function check_return_value(): int {
return "not an int"; // runtime error.
} |
|
hhvm/hphp/hack/test/extracted_from_manual/05-functions/05-format-strings-01.hack_error | // @generated by hh_manual from manual/hack/05-functions/05-format-strings.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
async function example_snippet_wrapper(): Awaitable<void> {
// Correct.
Str\format("First: %d, second: %s", 1, "foo");
// Typechecker error: Too few arguments for format string.
Str\format("First: %d, second: %s", 1);
} |
|
hhvm/hphp/hack/test/extracted_from_manual/05-functions/05-format-strings-02.hack_error | // @generated by hh_manual from manual/hack/05-functions/05-format-strings.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
async function example_snippet_wrapper(): Awaitable<void> {
$string = "Number is: %d";
// Typechecker error: Only string literals are allowed here.
Str\format($string, 1);
} |
|
Hack | hhvm/hphp/hack/test/extracted_from_manual/05-functions/05-format-strings-03.hack | // @generated by hh_manual from manual/hack/05-functions/05-format-strings.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
function takes_format_string(
\HH\FormatString<\PlainSprintf> $format,
mixed ...$args
): void {}
function use_it(): void {
takes_format_string("First: %d, second: %s", 1, "foo");
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/05-functions/20-inout-parameters-01.hack | // @generated by hh_manual from manual/hack/05-functions/20-inout-parameters.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
function takes_inout(inout int $x): void {
$x = 1;
}
function call_it(): void {
$num = 0;
takes_inout(inout $num);
// $num is now 1.
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/05-functions/20-inout-parameters-02.hack | // @generated by hh_manual from manual/hack/05-functions/20-inout-parameters.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
function takes_inout(inout int $x): void {
$x = 1;
throw new Exception();
}
<<__EntryPoint>>
function call_it(): void {
$num = 0;
try {
takes_inout(inout $num);
} catch (Exception $_) {
}
// $num is still 0.
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/05-functions/20-inout-parameters-03.hack | // @generated by hh_manual from manual/hack/05-functions/20-inout-parameters.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
function set_to_value(inout int $item, int $value): void {
$item = $value;
}
function use_it(): void {
$items = vec[10, 11, 12];
$index = 1;
set_to_value(inout $items[$index], 42);
// $items is now vec[10, 42, 12].
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/01-introduction-01.hack | // @generated by hh_manual from manual/hack/06-classes/01-introduction.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class Counter {
private int $i = 0;
public function increment(): void {
$this->i += 1;
}
public function get(): int {
return $this->i;
}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/03-methods-person.hack | // @generated by hh_manual from manual/hack/06-classes/03-methods.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class Person {
public string $name = "anonymous";
public function greeting(): string {
return "Hi, my name is ".$this->name;
}
}
async function example_snippet_wrapper1(): Awaitable<void> {
$p = new Person();
echo $p->greeting();
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/03-methods-person2.hack | // @generated by hh_manual from manual/hack/06-classes/03-methods.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class Person {
public static function typicalGreeting(): string {
return "Hello";
}
}
async function example_snippet_wrapper1(): Awaitable<void> {
echo Person::typicalGreeting();
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/05-properties-01.hack | // @generated by hh_manual from manual/hack/06-classes/05-properties.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class HasDefaultValue {
public int $i = 0;
}
class SetInConstructor {
public int $i;
public function __construct() {
$this->i = 0;
}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/05-properties-02.hack | // @generated by hh_manual from manual/hack/06-classes/05-properties.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class MyExample {
public mixed $m;
public ?string $s;
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/05-properties-example.hack | // @generated by hh_manual from manual/hack/06-classes/05-properties.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class Example {
public static int $val = 0;
}
async function example_snippet_wrapper1(): Awaitable<void> {
Example::$val;
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/05-properties-funbox.hack | // @generated by hh_manual from manual/hack/06-classes/05-properties.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class FunctionBox {
public function __construct(public (function(): void) $value) {}
}
async function example_snippet_wrapper1(): Awaitable<void> {
$b = new FunctionBox(() ==> { echo "hello"; });
($b->value)();
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/05-properties-intbox.hack | // @generated by hh_manual from manual/hack/06-classes/05-properties.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class IntBox {
public int $value = 0;
}
async function example_snippet_wrapper1(): Awaitable<void> {
$b = new IntBox();
$b->value = 42;
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/05-properties-intbox_prop.hack | // @generated by hh_manual from manual/hack/06-classes/05-properties.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class IntBox {
public int $value = 0;
public function value(): int {
return $this->value;
}
}
async function example_snippet_wrapper1(): Awaitable<void> {
$b = new IntBox();
$b->value(); // method call
$b->value; // property access
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/06-inheritance-01.hack | // @generated by hh_manual from manual/hack/06-classes/06-inheritance.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class IntBox {
public function __construct(protected int $value) {}
public function get(): int {
return $this->value;
}
}
class MutableIntBox extends IntBox {
public function set(int $value): void {
$this->value = $value;
}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/06-inheritance-02.hack | // @generated by hh_manual from manual/hack/06-classes/06-inheritance.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class IntBox {
public function __construct(protected int $value) {}
public function get(): int {
return $this->value;
}
}
class IncrementedIntBox extends IntBox {
<<__Override>>
public function get(): int {
return $this->value + 1;
}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/06-inheritance-03.hack | // @generated by hh_manual from manual/hack/06-classes/06-inheritance.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class NumBox {
public function __construct(protected num $value) {}
protected function get(): num {
return $this->value;
}
}
class FloatBox extends NumBox {
<<__Override>>
public function get(): float {
return (float)$this->value;
}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/06-inheritance-04.hack | // @generated by hh_manual from manual/hack/06-classes/06-inheritance.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class User {
// This constructor takes one argument.
public function __construct(protected string $name) {}
}
class Player extends User {
// But this constructor takes two arguments.
<<__Override>>
public function __construct(protected int $score, string $name) {
parent::__construct($name);
}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/06-inheritance-05.hack | // @generated by hh_manual from manual/hack/06-classes/06-inheritance.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class IntBox {
public function __construct(protected int $value) {}
public function get(): int {
return $this->value;
}
}
class IncrementedIntBox extends IntBox {
<<__Override>>
public function get(): int {
return parent::get() + 1;
}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/06-inheritance-06.hack | // @generated by hh_manual from manual/hack/06-classes/06-inheritance.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class MyParent {
public static function foo(): int {
return 0;
}
}
class MyChild extends MyParent {
<<__Override>>
public static function foo(): int {
return parent::foo() + 1;
}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/06-inheritance-07.hack | // @generated by hh_manual from manual/hack/06-classes/06-inheritance.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
abstract class Animal {
public abstract function greet(): string;
}
class Dog extends Animal {
<<__Override>>
public function greet(): string {
return "woof!";
}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/06-inheritance-08.hack | // @generated by hh_manual from manual/hack/06-classes/06-inheritance.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
final class Dog {
public function greet(): string {
return "woof!";
}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/06-inheritance-09.hack | // @generated by hh_manual from manual/hack/06-classes/06-inheritance.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
abstract final class Example {
public static function callMe(int $i): int {
return static::helper($i);
}
private static function helper(int $i): int {
return $i + 1;
}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/06-inheritance-10.hack | // @generated by hh_manual from manual/hack/06-classes/06-inheritance.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class IntBox {
public function __construct(protected int $value) {}
final public function get(): int {
return $this->value;
}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/16-constructors-01.hack | // @generated by hh_manual from manual/hack/06-classes/16-constructors.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class Point {
private static int $pointCount = 0; // static property with initializer
private float $x; // instance property
private float $y; // instance property
public function __construct(num $x = 0, num $y = 0) { // instance method
$this->x = (float)$x; // access instance property
$this->y = (float)$y; // access instance property
++Point::$pointCount; // include new Point in Point count
}
}
function demo(): void {
$p1 = new Point(2.3);
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/16-constructors-02.hack | // @generated by hh_manual from manual/hack/06-classes/16-constructors.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
final class User {
private int $id;
private string $name;
public function __construct(
int $id,
string $name,
) {
$this->id = $id;
$this->name = $name;
}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/16-constructors-03.hack | // @generated by hh_manual from manual/hack/06-classes/16-constructors.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
final class User {
public function __construct(
private int $id,
private string $name,
) {}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/16-constructors-04.hack | // @generated by hh_manual from manual/hack/06-classes/16-constructors.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
final class User {
private static dict<int, User> $allUsers = dict[];
private int $age;
public function __construct(
private int $id,
private string $name,
// Promoted parameters can be combined with regular non-promoted parameters.
int $birthday_year,
) {
$this->age = \date('Y') - $birthday_year;
// The constructor parameter promotion assignments are done before the code
// inside the constructor is run, so we can use $this->id here.
self::$allUsers[$this->id] = $this;
}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/18-constants-01.hack | // @generated by hh_manual from manual/hack/06-classes/18-constants.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class Automobile {
const DEFAULT_COLOR = "white";
// ...
}
<<__EntryPoint>>
function main(): void {
$col = Automobile::DEFAULT_COLOR; // or: $col = self::DEFAULT_COLOR;
echo "\$col = $col\n";
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/19-type-constants-01.hack | // @generated by hh_manual from manual/hack/06-classes/19-type-constants.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
abstract class CBase {
abstract const type T;
// ...
}
class CString extends CBase {
const type T = string;
// ...
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/21-object-disposal-01.hack | // @generated by hh_manual from manual/hack/06-classes/21-object-disposal.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class TextFile implements \IDisposable {
private ?int $fileHandle = null;
private bool $openFlag = false;
private string $fileName;
private string $openMode;
public function __construct(string $fileName, string $openMode) {
$this->fileHandle = 55; // open file somehow and store handle
$this->openFlag = true; // file is open
$this->fileName = $fileName;
$this->openMode = $openMode;
}
public function close(): void {
if ($this->openFlag === false) {
return;
}
// ... somehow close the file
$this->fileHandle = null;
$this->openFlag = false;
echo "Closed file $this->fileName\n";
}
public function __toString(): string {
return 'fileName: '.
$this->fileName.
', openMode: '.
$this->openMode.
', fileHandle: '.
(($this->fileHandle === null) ? "null" : $this->fileHandle).
', openFlag: '.
(($this->openFlag) ? "True" : "False");
}
public function __dispose(): void {
echo "Inside __dispose\n";
$this->close();
}
<<__ReturnDisposable>>
public static function open_TextFile(
string $fileName,
string $openMode,
): TextFile {
return new TextFile($fileName, $openMode);
}
public function is_same_TextFile(<<__AcceptDisposable>> TextFile $t): bool {
return $this->fileHandle === $t->fileHandle;
}
// other methods, such as read and write
}
<<__EntryPoint>>
function main(): void {
using ($f1 = new TextFile("file1.txt", "rw")) {
// echo "\$f1 is >" . $f1 . "<\n"; // usage not permitted
echo "\$f1 is >".$f1->__toString()."<\n";
// work with the file
$f1->close(); // close explicitly
$f1->close(); // try to close again
} // dispose called here
using ($f2 = new TextFile("file2.txt", "rw")) {
echo "\$f2 is >".$f2->__toString()."<\n";
// work with the file
// no explicit close
} // dispose called here
using ($f3 = TextFile::open_TextFile("file3.txt", "rw")) {
echo "\$f3 is >".$f3->__toString()."<\n";
// work with the file
// no explicit close
} // dispose called here
using $f4 = TextFile::open_TextFile("file4.txt", "rw");
echo "\$f4 is >".$f4->__toString()."<\n";
using $f5 = new TextFile("file5.txt", "rw");
echo "\$f5 is >".$f5->__toString()."<\n";
// work with both files
// no explicit close
} // dispose called here for both $f4 and $f5 |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/21-object-disposal-02.hack | // @generated by hh_manual from manual/hack/06-classes/21-object-disposal.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class Example implements IAsyncDisposable {
public async function __disposeAsync(): Awaitable<void> {
// Cleanup here.
}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/31-type-constants-revisited-01.hack | // @generated by hh_manual from manual/hack/06-classes/31-type-constants-revisited.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
abstract class User {
public function __construct(private int $id) {}
public function getID(): int {
return $this->id;
}
}
trait UserTrait {
require extends User;
}
interface IUser {
require extends User;
}
class AppUser extends User implements IUser {
use UserTrait;
}
<<__EntryPoint>>
function run(): void {
$au = new AppUser(-1);
\var_dump($au->getID());
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/31-type-constants-revisited-02.hack | // @generated by hh_manual from manual/hack/06-classes/31-type-constants-revisited.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
abstract class User {
abstract const type T as arraykey;
public function __construct(private this::T $id) {}
public function getID(): this::T {
return $this->id;
}
}
trait UserTrait {
require extends User;
}
interface IUser {
require extends User;
}
// We know that AppUser will only have int ids
class AppUser extends User implements IUser {
const type T = int;
use UserTrait;
}
class WebUser extends User implements IUser {
const type T = string;
use UserTrait;
}
class OtherUser extends User implements IUser {
const type T = arraykey;
use UserTrait;
}
<<__EntryPoint>>
function run(): void {
$au = new AppUser(-1);
\var_dump($au->getID());
$wu = new WebUser('-1');
\var_dump($wu->getID());
$ou1 = new OtherUser(-1);
\var_dump($ou1->getID());
$ou2 = new OtherUser('-1');
\var_dump($ou2->getID());
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/31-type-constants-revisited-03.hack | // @generated by hh_manual from manual/hack/06-classes/31-type-constants-revisited.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
abstract class Base {
abstract const type T;
protected this::T $value;
}
class Stringy extends Base {
const type T = string;
public function __construct() {
// inherits $value in Base which is now setting T as a string
$this->value = "Hi";
}
public function getString(): string {
return $this->value; // property of type string
}
}
class Inty extends Base {
const type T = int;
public function __construct() {
// inherits $value in Base which is now setting T as an int
$this->value = 4;
}
public function getInt(): int {
return $this->value; // property of type int
}
}
<<__EntryPoint>>
function run(): void {
$s = new Stringy();
$i = new Inty();
\var_dump($s->getString());
\var_dump($i->getInt());
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/31-type-constants-revisited-04.hack | // @generated by hh_manual from manual/hack/06-classes/31-type-constants-revisited.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
abstract class UserTC {
abstract const type Ttc as arraykey;
public function __construct(private this::Ttc $id) {}
public function getID(): this::Ttc {
return $this->id;
}
}
class AppUserTC extends UserTC {
const type Ttc = int;
}
function get_id_from_userTC(AppUserTC $uc): AppUserTC::Ttc {
return $uc->getID();
}
<<__EntryPoint>>
function run(): void {
$autc = new AppUserTC(10);
\var_dump(get_id_from_userTC($autc));
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/31-type-constants-revisited-05.hack | // @generated by hh_manual from manual/hack/06-classes/31-type-constants-revisited.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
abstract class Box {
abstract const type T;
public function __construct(private this::T $value) {}
public function get(): this::T {
return $this->value;
}
public function set(this::T $val): this {
$this->value = $val;
return $this;
}
}
class IntBox extends Box {
const type T = int;
}
<<__EntryPoint>>
function run(): void {
$ibox = new IntBox(10);
\var_dump($ibox);
$ibox->set(123);
\var_dump($ibox);
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/06-classes/33-methods-with-predefined-semantics-01.hack | // @generated by hh_manual from manual/hack/06-classes/33-methods-with-predefined-semantics.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class Example implements IDisposable {
public function __dispose(): void {}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/07-traits-and-interfaces/02-implementing-an-interface-01.hack | // @generated by hh_manual from manual/hack/07-traits-and-interfaces/02-implementing-an-interface.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
interface MyCollection {
const MAX_NUMBER_ITEMS = 1000;
public function put(int $item): void;
public function get(): int;
}
class MyList implements MyCollection {
public function put(int $item): void { /* implement method */ }
public function get(): int { /* implement method */
return 0;
}
// ...
}
class MyQueue implements MyCollection {
public function put(int $item): void { /* implement method */ }
public function get(): int { /* implement method */
return 0;
}
// ...
}
function process_collection(MyCollection $p1): void {
/* can process any object whose class implements MyCollection */
$p1->put(123);
}
<<__EntryPoint>>
function main(): void {
process_collection(new MyList());
process_collection(new MyQueue());
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/07-traits-and-interfaces/03-using-a-trait-01.hack | // @generated by hh_manual from manual/hack/07-traits-and-interfaces/03-using-a-trait.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
trait T {
public int $x = 0;
public function return_even() : int {
invariant($this->x % 2 == 0, 'error, not even\n');
$this->x = $this->x + 2;
return $this->x;
}
}
class C1 {
use T;
public function foo() : void {
echo "C1: " . $this->return_even() . "\n";
}
}
class C2 {
use T;
public function bar() : void {
echo "C2: " . $this->return_even() . "\n";
}
}
<<__EntryPoint>>
function main() : void {
(new C1()) -> foo();
(new C2()) -> bar();
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/07-traits-and-interfaces/03-using-a-trait-02.hack | // @generated by hh_manual from manual/hack/07-traits-and-interfaces/03-using-a-trait.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
trait T1 {
public int $x = 0;
public function return_even() : int {
invariant($this->x % 2 == 0, 'error, not even\n');
$this->x = $this->x + 2;
return $this->x;
}
}
trait T2 {
use T1;
public function return_odd() : int {
return $this->return_even() + 1;
}
}
trait T3 {
public static function is_odd(int $x) : bool {
if ($x % 2 == 1) {
return true;
} else {
return false;
}
}
}
class C {
use T2;
use T3;
public function foo() : void {
echo static::is_odd($this->return_odd()) . "\n";
}
}
<<__EntryPoint>>
function main() : void {
(new C()) -> foo();
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/07-traits-and-interfaces/03-using-a-trait-03.hack | // @generated by hh_manual from manual/hack/07-traits-and-interfaces/03-using-a-trait.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
trait T1 {
public static int $x = 0;
public static function even() : void {
invariant(static::$x % 2 == 0, 'error, not even\n');
static::$x = static::$x + 2;
}
}
trait T2 {
public static int $x = 0;
public static function inc() : void {
static::$x = static::$x + 1;
}
}
class C {
use T1;
use T2;
public static function foo() : void {
static::inc();
static::even();
}
}
<<__EntryPoint>>
function main() : void {
try {
C::foo();
} catch (\Exception $ex) {
echo "Caught an exception\n";
}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/07-traits-and-interfaces/03-using-a-trait-04.hack | // @generated by hh_manual from manual/hack/07-traits-and-interfaces/03-using-a-trait.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
<<file:__EnableUnstableFeatures('method_trait_diamond')>>
trait T {
public function foo(): void { echo "I am T"; }
}
trait T1 { use T; }
trait T2 { use T; }
<<__EnableMethodTraitDiamond>>
class C {
use T1, T2;
}
<<__EntryPoint>>
function main() : void {
(new C())->foo();
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/07-traits-and-interfaces/03-using-a-trait-05.hack | // @generated by hh_manual from manual/hack/07-traits-and-interfaces/03-using-a-trait.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
trait T {
const FOO = 'trait';
}
class B {
const FOO = 'parent';
}
class A extends B { use T; }
<<__EntryPoint>>
function main() : void {
\var_dump(A::FOO);
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/07-traits-and-interfaces/03-using-a-trait-06.hack | // @generated by hh_manual from manual/hack/07-traits-and-interfaces/03-using-a-trait.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
trait T1 {
const FOO = 'one';
}
trait T2 {
const FOO = 'two';
}
class A { use T1, T2; }
<<__EntryPoint>>
function main() : void {
\var_dump(A::FOO);
} |
hhvm/hphp/hack/test/extracted_from_manual/07-traits-and-interfaces/03-using-a-trait-07.hack_error | // @generated by hh_manual from manual/hack/07-traits-and-interfaces/03-using-a-trait.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
trait T {
const FOO = 'trait';
}
interface I {
const FOO = 'interface';
}
class A implements I { use T; }
<<__EntryPoint>>
function main() : void {
\var_dump(A::FOO);
} |
|
Hack | hhvm/hphp/hack/test/extracted_from_manual/07-traits-and-interfaces/03-using-a-trait-08.hack | // @generated by hh_manual from manual/hack/07-traits-and-interfaces/03-using-a-trait.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
interface I1 {
const FOO = 'one';
}
trait T implements I1 {}
interface I {
const FOO = 'two';
}
class A implements I { use T; }
<<__EntryPoint>>
function main() : void {
\var_dump(A::FOO);
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/07-traits-and-interfaces/04-trait-and-interface-requirements-01.hack | // @generated by hh_manual from manual/hack/07-traits-and-interfaces/04-trait-and-interface-requirements.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
abstract class Machine {
public function openDoors(): void {
return;
}
public function closeDoors(): void {
return;
}
}
interface Fliers {
public function fly(): bool;
}
trait Plane {
require extends Machine;
require implements Fliers;
public function takeOff(): bool {
$this->openDoors();
$this->closeDoors();
return $this->fly();
}
}
class AirBus extends Machine implements Fliers {
use Plane;
public function fly(): bool {
return true;
}
}
<<__EntryPoint>>
function run(): void {
$ab = new AirBus();
\var_dump($ab);
\var_dump($ab->takeOff());
} |
hhvm/hphp/hack/test/extracted_from_manual/07-traits-and-interfaces/04-trait-and-interface-requirements-02.hack_error | // @generated by hh_manual from manual/hack/07-traits-and-interfaces/04-trait-and-interface-requirements.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
abstract class Machine {
public function openDoors(): void {
return;
}
public function closeDoors(): void {
return;
}
}
interface Fliers {
public function fly(): bool;
}
trait Plane {
require extends Machine;
require implements Fliers;
public function takeOff(): bool {
$this->openDoors();
$this->closeDoors();
return $this->fly();
}
}
// Having this will not only cause a typechecker error, but also cause a fatal
// error in HHVM since we did not meet the trait requirement.
class Paper implements Fliers {
use Plane;
public function fly(): bool {
return false;
}
}
<<__EntryPoint>>
function run(): void {
// This code will not run in HHVM because of the problem mentioned above.
$p = new Paper();
\var_dump($p);
\var_dump($p->takeOff());
} |
|
Hack | hhvm/hphp/hack/test/extracted_from_manual/07-traits-and-interfaces/04-trait-and-interface-requirements-03.hack | // @generated by hh_manual from manual/hack/07-traits-and-interfaces/04-trait-and-interface-requirements.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
<<file:__EnableUnstableFeatures('require_class')>>
trait T {
require class C;
public function foo(): void {
$this->bar();
}
}
final class C {
use T;
public function bar(): void {}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/07-traits-and-interfaces/04-trait-and-interface-requirements-04.hack | // @generated by hh_manual from manual/hack/07-traits-and-interfaces/04-trait-and-interface-requirements.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
abstract class Machine {
public function openDoors(): void {
return;
}
public function closeDoors(): void {
return;
}
}
interface Fliers {
require extends Machine;
public function fly(): bool;
}
class AirBus extends Machine implements Fliers {
public function takeOff(): bool {
$this->openDoors();
$this->closeDoors();
return $this->fly();
}
public function fly(): bool {
return true;
}
}
<<__EntryPoint>>
function run(): void {
$ab = new AirBus();
\var_dump($ab);
\var_dump($ab->takeOff());
} |
hhvm/hphp/hack/test/extracted_from_manual/07-traits-and-interfaces/04-trait-and-interface-requirements-05.hack_error | // @generated by hh_manual from manual/hack/07-traits-and-interfaces/04-trait-and-interface-requirements.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
abstract class Machine {
public function openDoors(): void {
return;
}
public function closeDoors(): void {
return;
}
}
interface Fliers {
require extends Machine;
public function fly(): bool;
}
// Having this will not only cause a typechecker error, but also cause a fatal
// error in HHVM since we did not meet the interface requirement (extending
// Machine).
class Paper implements Fliers {
public function fly(): bool {
return false;
}
}
<<__EntryPoint>>
function run(): void {
// This code will actually not run in HHVM because of the fatal mentioned
// above.
$p = new Paper();
\var_dump($p);
\var_dump($p->takeOff());
} |
|
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/01-introduction-01.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/01-introduction.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
async function example_snippet_wrapper(): Awaitable<void> {
$v = vec[2, 1, 2];
$k = keyset[2, 1];
$d = dict['a' => 1, 'b' => 3];
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/01-introduction-02.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/01-introduction.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
async function example_snippet_wrapper(): Awaitable<void> {
// The C namespace contains generic functions that are relevant to
// all array and collection types.
C\count(vec[]); // 0
C\is_empty(keyset[]); // true
// The Vec, Keyset and Dict namespaces group functions according
// to their return type.
Vec\keys(dict['x' => 1]); // vec['x']
Keyset\keys(dict['x' => 1]); // keyset['x']
Vec\map(keyset[1, 2], $x ==> $x + 1); // vec[2, 3]
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/05-vec-keyset-and-dict-01.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/05-vec-keyset-and-dict.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
// Creating a vec.
function get_items(): vec<string> {
$items = vec['a', 'b', 'c'];
return $items;
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/05-vec-keyset-and-dict-02.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/05-vec-keyset-and-dict.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
async function example_snippet_wrapper(): Awaitable<void> {
$items = vec['a', 'b', 'c'];
// Accessing items by index.
$items[0]; // 'a'
$items[3]; // throws OutOfBoundsException
// Accessing items that might be out-of-bounds.
idx($items, 0); // 'a'
idx($items, 3); // null
idx($items, 3, 'default'); // 'default'
// Modifying items. These operations set $items
// to a modified copy, and do not modify the original value.
$items[0] = 'xx'; // vec['xx', 'b', 'c']
$items[] = 'd'; // vec['xx', 'b', 'c', 'd']
// Getting the length.
C\count($items); // 4
// Seeing if a vec contains a value or index.
C\contains($items, 'a'); // true
C\contains_key($items, 2); // true
// Iterating.
foreach ($items as $item) {
echo $item;
}
// Iterating with the index.
foreach ($items as $index => $item) {
echo $index; // e.g. 0
echo $item; // e.g. 'a'
}
// Equality checks. Elements are recursively compared with ===.
vec[1] === vec[1]; // true
vec[1, 2] === vec[2, 1]; // false
// Combining vecs.
Vec\concat(vec[1], vec[2, 3]); // vec[1, 2, 3]
// Removing items at an index.
$items = vec['a', 'b', 'c'];
$n = 1;
Vec\concat(Vec\take($items, $n), Vec\drop($items, $n + 1)); // vec['a', 'c']
// Converting from an Iterable.
vec(keyset[10, 11]); // vec[10, 11]
vec(Vector { 20, 21 }); // vec[20, 21]
vec(dict['key1' => 'value1']); // vec['value1']
// Type checks.
$items is vec<_>; // true
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/05-vec-keyset-and-dict-03.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/05-vec-keyset-and-dict.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
// Creating a keyset.
function get_items(): keyset<string> {
$items = keyset['a', 'b', 'c'];
return $items;
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/05-vec-keyset-and-dict-04.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/05-vec-keyset-and-dict.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
async function example_snippet_wrapper(): Awaitable<void> {
$items = keyset['a', 'b', 'c'];
// Checking if a keyset contains a value.
C\contains($items, 'a'); // true
// Adding/removing items. These operations set $items to a modified copy,
// and do not modify the original value.
$items[] = 'd'; // keyset['a', 'b', 'c', 'd']
$items[] = 'a'; // keyset['a', 'b', 'c', 'd']
unset($items['b']); // keyset['a', 'c', 'd']
// Getting the length.
C\count($items); // 3
// Iterating.
foreach ($items as $item) {
echo $item;
}
// Equality checks. === returns false if the order does not match.
keyset[1] === keyset[1]; // true
keyset[1, 2] === keyset[2, 1]; // false
Keyset\equal(keyset[1, 2], keyset[2, 1]); // true
// Combining keysets.
Keyset\union(keyset[1, 2], keyset[2, 3]); // keyset[1, 2, 3]
// Converting from an Iterable.
keyset(vec[1, 2, 1]); // keyset[1, 2]
keyset(Vector { 20, 21 }); // keyset[20, 21]
keyset(dict['key1' => 'value1']); // keyset['value1']
// Type checks.
$items is keyset<_>; // true
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/05-vec-keyset-and-dict-05.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/05-vec-keyset-and-dict.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
// Creating a dict.
function get_items(): dict<string, int> {
$items = dict['a' => 1, 'b' => 3];
return $items;
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/05-vec-keyset-and-dict-06.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/05-vec-keyset-and-dict.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
async function example_snippet_wrapper(): Awaitable<void> {
$items = dict['a' => 1, 'b' => 3];
// Accessing items by key.
$items['a']; // 1
$items['foo']; // throws OutOfBoundsException
// Accessing keys that may be absent.
idx($items, 'a'); // 1
idx($items, 'z'); // null
idx($items, 'z', 'default'); // 'default'
// Inserting, updating or removing values in a dict. These operations
// set $items to a modified copy, and do not modify the original value.
$items['a'] = 42; // dict['a' => 42, 'b' => 3]
$items['z'] = 100; // dict['a' => 42, 'b' => 3, 'z' => 100]
unset($items['b']); // dict['a' => 42, 'z' => 100]
// Getting the keys.
Vec\keys(dict['a' => 1, 'b' => 3]); // vec['a', 'b']
// Getting the values.
vec(dict['a' => 1, 'b' => 3]); // vec[1, 3]
// Getting the length.
C\count($items); // 2
// Checking if a dict contains a key or value.
C\contains_key($items, 'a'); // true
C\contains($items, 3); // true
// Iterating values.
foreach ($items as $value) {
echo $value; // e.g. 1
}
// Iterating keys and values.
foreach ($items as $key => $value) {
echo $key; // e.g. 'a'
echo $value; // e.g. 1
}
// Equality checks. === returns false if the order does not match.
dict[] === dict[]; // true
dict[0 => 10, 1 => 11] === dict[1 => 11, 0 => 10]; // false
Dict\equal(dict[0 => 10, 1 => 11], dict[1 => 11, 0 => 10]); // true
// Combining dicts (last item wins).
Dict\merge(dict[10 => 1, 20 => 2], dict[30 => 3, 10 => 0]);
// dict[10 => 0, 20 => 2, 30 => 3];
// Converting from an Iterable.
dict(vec['a', 'b']); // dict[0 => 'a', 1 => 'b']
dict(Map {'a' => 5}); // dict['a' => 5]
// Type checks.
$items is dict<_, _>; // true
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/10-object-collections-01.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/10-object-collections.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
// Creating a Vector.
function get_items(): Vector<string> {
$items = Vector {'a', 'b', 'c'};
return $items;
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/10-object-collections-02.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/10-object-collections.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
async function example_snippet_wrapper(): Awaitable<void> {
$items = Vector {'a', 'b', 'c'};
// Accessing items by index.
$items[0]; // 'a'
$items[3]; // throws OutOfBoundsException
// Accessing items that might be out-of-bounds.
idx($items, 0); // 'a'
idx($items, 3); // null
idx($items, 3, 'default'); // 'default'
// Modifying items. This mutates the Vector in place.
$items[0] = 'xx'; // Vector {'xx', 'b', 'c'}
$items[] = 'd'; // Vector {'xx', 'b', 'c', 'd'}
// Getting the length.
C\count($items); // 4
// Iterating.
foreach ($items as $item) {
echo $item;
}
// Iterating with the index.
foreach ($items as $index => $item) {
echo $index; // e.g. 0
echo $item; // e.g. 'a'
}
// Equality checks compare references.
$items === $items; // true
Vector {} === Vector {}; // false
// Converting from an Iterable.
new Vector(vec[1, 2]); // Vector {1, 2}
new Vector(Set {1, 2}); // Vector {1, 2}
new Vector(dict['key1' => 'value1']); // Vector {'value1'}
// Type checks
$items is Vector<_>; // true
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/10-object-collections-03.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/10-object-collections.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
// Creating an ImmVector.
function get_items(): ImmVector<string> {
$items = ImmVector {'a', 'b', 'c'};
return $items;
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/10-object-collections-04.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/10-object-collections.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
// Creating a Set.
function get_items(): Set<string> {
$items = Set {'a', 'b', 'c'};
return $items;
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/10-object-collections-05.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/10-object-collections.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
async function example_snippet_wrapper(): Awaitable<void> {
$items = Set {'a', 'b', 'c'};
// Checking if a Set contains a value.
C\contains_key($items, 'a'); // true
// Modifying items. This mutates the Set in place.
$items[] = 'd'; // Set {'a', 'b', 'c', 'd'}
$items[] = 'a'; // Set {'a', 'b', 'c', 'd'}
// Getting the length.
C\count($items); // 4
// Iterating.
foreach ($items as $item) {
echo $item;
}
// Equality checks compare references.
$items === $items; // true
Set {} === Set {}; // false
// Converting from an Iterable.
new Set(vec[1, 2, 1]); // Set {1, 2}
new Set(Vector {20, 21}); // Set {20, 21}
new Set(dict['key1' => 'value1']); // Set {'value1'}
// Type checks.
$items is Set<_>; // true
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/10-object-collections-06.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/10-object-collections.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
// Creating an ImmSet.
function get_items(): ImmSet<string> {
$items = ImmSet {'a', 'b', 'c'};
return $items;
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/10-object-collections-07.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/10-object-collections.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
// Creating a Map.
function get_items(): Map<string, int> {
$items = Map {'a' => 1, 'b' => 3};
return $items;
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/10-object-collections-08.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/10-object-collections.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
async function example_snippet_wrapper(): Awaitable<void> {
$items = Map {'a' => 1, 'b' => 3};
// Accessing items by key.
$items['a']; // 1
$items['z']; // throws OutOfBoundsException
// Accessing keys that may be absent.
idx($items, 'a'); // 1
idx($items, 'z'); // null
idx($items, 'z', 'default'); // 'default'
// Modifying items. This mutates the Map in place.
$items['a'] = 42; // Map {'a' => 42, 'b' => 3}
$items['z'] = 100; // Map {'a' => 42, 'b' => 3, 'z' => 100}
// Getting the keys.
Vec\keys(Map {'a' => 1, 'b' => 3}); // vec['a', 'b']
// Getting the values.
vec(Map {'a' => 1, 'b' => 3}); // vec[1, 3]
// Getting the length.
C\count($items); // 3
// Iterating values.
foreach ($items as $value) {
echo $value;
}
// Iterating keys and values.
foreach ($items as $key => $value) {
echo $key;
echo $value;
}
// Equality checks compare references.
$items === $items; // true
Map {} === Map {}; // false
// Converting from an Iterable.
new Map(dict['key1' => 'value1']); // Map { 'key1' => 'value1'}
new Map(vec['a', 'b']); // Map {0 => 'a', 1 => 'b'}
// Type checks
$items is Map<_, _>; // true
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/10-object-collections-09.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/10-object-collections.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
// Creating an ImmMap.
function get_items(): ImmMap<string, int> {
$items = ImmMap {'a' => 1, 'b' => 3};
return $items;
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/10-object-collections-10.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/10-object-collections.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
function get_items(): Pair<int, string> {
$items = Pair {42, 'foo'};
return $items;
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/10-object-collections-11.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/10-object-collections.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
async function example_snippet_wrapper(): Awaitable<void> {
$items = Pair {42, 'foo'};
// Destructuring a Pair value.
list($x, $y) = $items; // $x: 42, $y: 'foo'
// Accessing elements by index.
$items[0]; // 42
$items[1]; // 'foo'
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/15-varray-and-darray-01.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/15-varray-and-darray.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
function get_items(bool $b): varray_or_darray<int, string> {
if ($b) {
return varray['a', 'b'];
} else {
return darray[5 => 'c'];
}
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/20-mutating-values-01.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/20-mutating-values.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
function update_value(vec<int> $items): vec<int> {
// Both of these operations set $items a modified copy of the
// original value.
$items[0] = 42;
$items[] = 100;
return $items;
}
function demo(): void {
$v = vec[1, 2];
// $v is unaffected by this function call.
$v2 = update_value($v);
var_dump($v); // vec[1, 2]
var_dump($v2); // vec[42, 2, 100]
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/20-mutating-values-02.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/20-mutating-values.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
class Person {
public function __construct(public string $name) {}
}
function update_person(vec<Person> $items): void {
$items[0]->name = "new";
}
function demo(): void {
$v = vec[new Person("old")];
update_person($v);
var_dump($v); // vec[Person { name: "new" }]
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/20-mutating-values-03.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/20-mutating-values.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
function update_value(inout vec<int> $items): void {
$items[0] = 42;
$items[] = 100;
}
function demo(): void {
$v = vec[1, 2];
update_value(inout $v);
var_dump($v); // vec[42, 2, 100]
} |
Hack | hhvm/hphp/hack/test/extracted_from_manual/08-arrays-and-collections/20-mutating-values-04.hack | // @generated by hh_manual from manual/hack/08-arrays-and-collections/20-mutating-values.md
// @codegen-command : buck run fbcode//hphp/hack/src/hh_manual:hh_manual extract fbcode/hphp/hack/manual/hack/
function update_value(Vector<int> $items): void {
$items[0] = 42;
$items[] = 100;
}
function demo(): void {
$v = Vector {1, 2};
update_value($v);
var_dump($v); // Vector {42, 2, 100}
} |
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