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<?php declare(strict_types=1);
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namespace PhpParser\Builder;
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use PhpParser\Builder;
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use PhpParser\BuilderHelpers;
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use PhpParser\Node;
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use PhpParser\Node\Stmt;
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class TraitUseAdaptation implements Builder
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{
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const TYPE_UNDEFINED = 0;
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const TYPE_ALIAS = 1;
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const TYPE_PRECEDENCE = 2;
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/** @var int Type of building adaptation */
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protected $type;
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protected $trait;
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protected $method;
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protected $modifier = null;
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protected $alias = null;
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protected $insteadof = [];
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/**
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* Creates a trait use adaptation builder.
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*
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* @param Node\Name|string|null $trait Name of adaptated trait
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* @param Node\Identifier|string $method Name of adaptated method
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*/
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public function __construct($trait, $method) {
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$this->type = self::TYPE_UNDEFINED;
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$this->trait = is_null($trait)? null: BuilderHelpers::normalizeName($trait);
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$this->method = BuilderHelpers::normalizeIdentifier($method);
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}
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/**
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* Sets alias of method.
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*
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* @param Node\Identifier|string $alias Alias for adaptated method
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*
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* @return $this The builder instance (for fluid interface)
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*/
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public function as($alias) {
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if ($this->type === self::TYPE_UNDEFINED) {
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$this->type = self::TYPE_ALIAS;
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}
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if ($this->type !== self::TYPE_ALIAS) {
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throw new \LogicException('Cannot set alias for not alias adaptation buider');
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}
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$this->alias = $alias;
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return $this;
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}
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/**
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* Sets adaptated method public.
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*
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* @return $this The builder instance (for fluid interface)
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*/
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public function makePublic() {
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$this->setModifier(Stmt\Class_::MODIFIER_PUBLIC);
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return $this;
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}
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/**
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* Sets adaptated method protected.
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*
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* @return $this The builder instance (for fluid interface)
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*/
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public function makeProtected() {
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$this->setModifier(Stmt\Class_::MODIFIER_PROTECTED);
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return $this;
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}
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/**
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* Sets adaptated method private.
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*
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* @return $this The builder instance (for fluid interface)
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*/
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public function makePrivate() {
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$this->setModifier(Stmt\Class_::MODIFIER_PRIVATE);
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return $this;
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}
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/**
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* Adds overwritten traits.
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*
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* @param Node\Name|string ...$traits Traits for overwrite
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*
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* @return $this The builder instance (for fluid interface)
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*/
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public function insteadof(...$traits) {
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if ($this->type === self::TYPE_UNDEFINED) {
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if (is_null($this->trait)) {
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throw new \LogicException('Precedence adaptation must have trait');
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}
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$this->type = self::TYPE_PRECEDENCE;
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}
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if ($this->type !== self::TYPE_PRECEDENCE) {
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throw new \LogicException('Cannot add overwritten traits for not precedence adaptation buider');
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}
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foreach ($traits as $trait) {
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$this->insteadof[] = BuilderHelpers::normalizeName($trait);
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}
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return $this;
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}
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protected function setModifier(int $modifier) {
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if ($this->type === self::TYPE_UNDEFINED) {
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$this->type = self::TYPE_ALIAS;
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}
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if ($this->type !== self::TYPE_ALIAS) {
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throw new \LogicException('Cannot set access modifier for not alias adaptation buider');
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}
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if (is_null($this->modifier)) {
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$this->modifier = $modifier;
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} else {
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throw new \LogicException('Multiple access type modifiers are not allowed');
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}
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}
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/**
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* Returns the built node.
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*
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* @return Node The built node
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*/
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public function getNode() : Node {
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switch ($this->type) {
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case self::TYPE_ALIAS:
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return new Stmt\TraitUseAdaptation\Alias($this->trait, $this->method, $this->modifier, $this->alias);
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case self::TYPE_PRECEDENCE:
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return new Stmt\TraitUseAdaptation\Precedence($this->trait, $this->method, $this->insteadof);
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default:
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throw new \LogicException('Type of adaptation is not defined');
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}
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}
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}
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