in src/CodegenEnumMember.hack [25:41]
public function appendToBuilder(HackBuilder $builder): HackBuilder {
$value = $this->getValue();
invariant($value !== null, 'enum members must have a value');
$db = $this->getDocBlock();
if ($db is nonnull) {
$builder->ensureEmptyLine()->addDocBlock($db);
}
return $builder
->ensureNewLine()
->addWithSuggestedLineBreaksf(
'%s%s= %s',
$this->getName(),
HackBuilder::DELIMITER,
$value,
)
->addLine(';');
}