smuuf/primi

<?php

declare(strict_types=1);

namespace Smuuf\Primi\Values;

use \Smuuf\Primi\Ex\EngineError;
use \Smuuf\Primi\Stdlib\BuiltinTypes;
use \Smuuf\Primi\Structures\CallArgs;
use \Smuuf\Primi\Structures\FnContainer;

/**
 * NOTE: Although this PHP class extends from `FuncValue`, in Primi runtime
 * the `MethodType` doesn't extend `FuncType` but actually extends `object`
 * directly.
 *
 * @internal
 * @property FnContainer $value Internal map container.
 */
class MethodValue extends FuncValue {

    public const TYPE = "method";

    public function __construct(
        FnContainer $fn,
        private bool $isStatic = false,
        ?AbstractValue $bind = \null,
    ) {

        if ($isStatic && $bind) {
            throw new EngineError("Cannot create bound static method");
        }

        parent::__construct(
            $fn,
            $bind ? new CallArgs([$bind]) : null,
        );

    }

    public function withBind(AbstractValue $bind): self {

        if ($this->isStatic) {
            return $this;
        }

        return new MethodValue($this->value, false, $bind);

    }

    public function getType(): TypeValue {
        return BuiltinTypes::getMethodType();
    }

    public function getStringRepr(): string {

        $adjectives = \array_filter([
            $this->value->isPhpFunction() ? 'native' : '',
            $this->isStatic ? 'static' : '',
            $this->partialArgs ? 'bound' : '',
        ]);

        return \sprintf(
            "<%s%s%s>",
            \implode(' ', \array_filter($adjectives)) . ($adjectives ? ' ' : ''),
            'method',
            $this->name ? ": {$this->name}" : '',
        );

    }

}