hack-codegen/src/CodegenType.hack at main · hhvm/hack-codegen · GitHub

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* 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;

/**

* Generate code for a type or newtype definition. Please don't use this class

* directly; instead use the functions codegen_type or codegen_newtype. E.g.:

* codegen_type('Point')

* ->setType('(int, int)');

final class CodegenType implements ICodeBuilderRenderer {

use HackBuilderRenderer;

private ?string $type;

private ?CodegenShape $codegenShape;

private string $keyword = 'type';

public function __construct(

protected IHackCodegenConfig $config,

private string $name,

) {

}

public function setType(string $type): this {

invariant(

$this->codegenShape === null,

"You can't set both the type and the shape.",

);

$this->type = $type;

return $this;

}

public function setShape(CodegenShape $codegen_shape): this {

invariant(

$this->type === null,

"You can't set both the type and the shape.",

);

$this->codegenShape = $codegen_shape;

return $this;

}

public function newType(): this {

$this->keyword = 'newtype';

return $this;

}

public function appendToBuilder(HackBuilder $builder): HackBuilder {

invariant(

$this->type !== null || $this->codegenShape !== null,

'You need to set either the type or the shape',

);

$builder->addf('%s %s = ', $this->keyword, $this->name);

if ($this->type !== null) {

return $builder->add($this->type)->closeStatement();

}

invariant(

$this->codegenShape !== null,

'Somehow the type and the shape were null!',

);

return $builder->addRenderer($this->codegenShape)->closeStatement();

}

hack-codegen/src/CodegenType.hack at main · hhvm/hack-codegen · GitHub

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