hack-codegen/src/HackfmtFormatter.hack at main · onkeypress-llc/hack-codegen · GitHub

History

63 lines (50 loc) · 1.66 KB

Raw

* 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, Vec};

final class HackfmtFormatter implements ICodegenFormatter {

public function __construct(private IHackCodegenConfig $config) {}

public function format(string $code, string $_file_name): string {

$output = vec[];

$exit_code = null;

$tempnam = \tempnam(\sys_get_temp_dir(), 'hack-codegen-hackfmt').'.hack';

$options = $this->getFormattedOptions();

try {

\file_put_contents($tempnam, $code);

\exec(

'hackfmt '.$options.' '.\escapeshellarg($tempnam),

inout $output,

inout $exit_code,

);

} finally {

\unlink($tempnam);

}

invariant($exit_code === 0, 'Failed to invoke hackfmt');

return Str\join($output, "\n")."\n";

}

<<__Memoize>>

private function getFormattedOptions(): string {

$options = vec[

'--indent-width',

(string)$this->config->getSpacesPerIndentation(),

'--line-width',

(string)$this->config->getMaxLineLength(),

];

if ($this->config->shouldUseTabs()) {

$options[] = '--tabs';

}

// HHVM < 4.48 always formats generated code. HHVM 4.48 never does (so this

// formatter is broken on that version). HHVM >= 4.49 formats generated code

// iff the following flag is provided:

if (\version_compare(\HHVM_VERSION, '4.49') >= 0) {

$options[] = '--format-generated-code';

}

return Vec\map($options, \escapeshellarg<>) |> Str\join($$, ' ');

}

hack-codegen/src/HackfmtFormatter.hack at main · onkeypress-llc/hack-codegen · GitHub

Expand file tree

Breadcrumbs

HackfmtFormatter.hack

Latest commit

History

Breadcrumbs

HackfmtFormatter.hack

File metadata and controls