/*

* Copyright (c) 2015-present, Facebook, Inc.

* All rights reserved.

*

* This source code is licensed under the MIT license found in the

* LICENSE file in the root directory of this source tree.

*

*/

namespace Facebook\HackCodegen;

use namespace HH\Lib\Str;

/**

* Generate code for a property variable. Please don't use this class directly;

* instead use the function codegen_property. E.g.:

*

* codegen_property('foo')

* ->setProtected()

* ->setType('string')

* ->setInlineComment('Represent the foo of the bar")

* ->render();

*/

final class CodegenProperty implements ICodeBuilderRenderer {

use CodegenWithVisibility;

use HackBuilderRenderer;

private ?string $comment;

private ?string $type;

private ?string $value;

private bool $isStatic = false;

public function __construct(

protected IHackCodegenConfig $config,

private string $name,

) {

// Private by default

$this->setPrivate();

}

public function getName(): string {

return $this->name;

}

public function getType(): ?string {

return $this->type;

}

public function getValue(): mixed {

return $this->value;

}

public function setInlineComment(string $comment): this {

$this->comment = $comment;

return $this;

}

public function setIsStatic(bool $value = true): this {

$this->isStatic = $value;

return $this;

}

/**

* Set the type of the member var. In Hack, if it's nullable

* you should prepend the question mark, e.g. "?string".

*/

public function setType(string $type): this {

$this->type = $type;

return $this;

}

public function setTypef(

Str\SprintfFormatString $format,

mixed ...$args

): this {

return $this->setType(\vsprintf($format, $args));

}

/**

* Set the initial value for the variable. You can pass numbers, strings,

* arrays, etc, and it will generate the code to render those values.

*/

public function setValue<T>(

T $value,

IHackBuilderValueRenderer<T> $renderer,

): this {

$this->value = $renderer->render($this->config, $value);

return $this;

}

public function appendToBuilder(HackBuilder $builder): HackBuilder {

$value = $this->value;

return $builder

->addInlineComment($this->comment)

->add($this->getVisibility().' ')

->addIf($this->isStatic, 'static ')

->addIf($this->type !== null, ($this->type ?? '').' ')

->add('$'.$this->name)

->addIf($this->value !== null, ' = '.($value ?? ''))

->addLine(';');

}

}