*/ private array $parameters = []; public function __construct(Node $returnNode) { $this->returnNode = $returnNode; } public function witParameters(ParameterDeclarationNode ...$parameters): self { $self = clone $this; $self->parameters = $parameters; return $self; } public function compile(Compiler $compiler): Compiler { $parameters = implode(', ', array_map( fn (ParameterDeclarationNode $parameter) => $compiler->sub()->compile($parameter)->code(), $this->parameters, )); $return = $compiler->sub()->compile($this->returnNode)->code(); return $compiler->write( << $return PHP, ); } }