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<?php |
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declare(strict_types=1); |
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namespace BitWasp\Bitcoin\Script\Path; |
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class LogicOpNode |
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{ |
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/** |
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* @var LogicOpNode|null |
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*/ |
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private $parent; |
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/** |
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* @var bool |
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*/ |
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private $value; |
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/** |
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* @var LogicOpNode[] |
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*/ |
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private $children = []; |
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/** |
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* MASTNode constructor. |
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* @param LogicOpNode|null $parent |
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* @param bool|null $value |
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*/ |
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public function __construct(LogicOpNode $parent = null, bool $value = null) |
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{ |
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$this->parent = $parent; |
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$this->value = $value; |
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} |
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/** |
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* @return array |
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*/ |
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public function flags() |
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{ |
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if (count($this->children) > 0) { |
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$values = []; |
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foreach ($this->children as $k => $child) { |
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$flags = $child->flags(); |
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foreach ($flags as $branch) { |
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$values[] = array_merge($this->isRoot() ? [] : [$this->value], is_array($branch) ? $branch : [$branch]); |
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} |
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} |
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return $values; |
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} else { |
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$value = $this->value; |
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if ($value === null) { |
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return [[]]; |
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} |
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return [$value]; |
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} |
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} |
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/** |
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* @return bool |
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*/ |
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public function isRoot(): bool |
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{ |
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return $this->parent == null; |
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} |
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/** |
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* @return bool |
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*/ |
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public function hasChildren(): bool |
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{ |
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return count($this->children) > 0; |
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} |
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/** |
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* @return LogicOpNode|null |
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*/ |
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public function getParent() |
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{ |
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return $this->parent; |
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} |
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/** |
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* @return bool|null |
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*/ |
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public function getValue() |
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{ |
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return $this->value; |
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} |
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/** |
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* @param int $value |
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* @return LogicOpNode |
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*/ |
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public function getChild(int $value): LogicOpNode |
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{ |
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if (!array_key_exists($value, $this->children)) { |
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throw new \RuntimeException("Child not found"); |
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} |
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return $this->children[$value]; |
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} |
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/** |
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* @return array |
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*/ |
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public function split(): array |
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{ |
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if (count($this->children) > 0) { |
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1 |
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throw new \RuntimeException("Sanity check - don't split twice"); |
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} |
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$children = [new LogicOpNode($this, false), new LogicOpNode($this, true)]; |
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foreach ($children as $child) { |
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$this->children[] = $child; |
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} |
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return $children; |
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} |
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} |
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Bit-Wasp /
bitcoin-php
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