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<?php |
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/** |
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* @copyright 2018 Aleksander Stelmaczonek <[email protected]> |
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* @license MIT License, see license file distributed with this source code |
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*/ |
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namespace Koriit\PHPDeps\Tokenizer; |
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use ArrayIterator; |
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use Koriit\PHPDeps\Tokenizer\Exceptions\UnexpectedEndOfTokens; |
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use Koriit\PHPDeps\Tokenizer\Exceptions\WrongPosition; |
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class TokensIterator extends ArrayIterator |
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{ |
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/** |
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* @param mixed $token |
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* @param int $tokenType |
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* |
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* @return bool |
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*/ |
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public static function isToken($token, $tokenType) |
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{ |
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return \is_array($token) && $token[0] === $tokenType; |
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} |
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/** |
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* @param mixed $token |
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* @param int[] $tokenTypes |
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* |
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* @return bool |
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*/ |
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public static function isOneOfTokens($token, array $tokenTypes) |
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{ |
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return \is_array($token) && \in_array($token[0], $tokenTypes, true); |
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} |
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/** |
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* @param string $contents Contents of PHP file to tokenize |
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* |
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* @return TokensIterator |
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*/ |
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public static function fromContents($contents) |
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{ |
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return new static(\token_get_all($contents)); |
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} |
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/** |
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* @param string $filePath Path to PHP file to tokenize |
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* |
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* @return TokensIterator |
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*/ |
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public static function fromFile($filePath) |
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{ |
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return static::fromContents(\file_get_contents($filePath)); |
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} |
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/** |
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* @throws UnexpectedEndOfTokens |
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*/ |
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public function skipNextBlock() |
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{ |
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$this->findNextBlock(); |
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$this->skipBlock(); |
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} |
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/** |
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* @throws UnexpectedEndOfTokens |
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*/ |
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public function findNextBlock() |
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{ |
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while ($this->valid()) { |
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if ($this->current() === '{') { |
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return; |
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} |
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$this->next(); |
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} |
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throw new UnexpectedEndOfTokens(); |
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} |
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/** |
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* @throws UnexpectedEndOfTokens |
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*/ |
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public function skipBlock() |
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{ |
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if (!$this->valid() || $this->current() !== '{') { |
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throw new WrongPosition('Not at block beginning position.'); |
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} |
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$bracesCounter = 1; |
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$this->next(); |
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while ($this->valid() && $bracesCounter > 0) { |
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if ($this->current() === '{') { |
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$bracesCounter++; |
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} elseif ($this->current() === '}') { |
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$bracesCounter--; |
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} |
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$this->next(); |
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} |
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if ($bracesCounter != 0) { |
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throw new UnexpectedEndOfTokens(); |
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} |
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} |
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public function skipWhitespaces() |
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{ |
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$this->skipTokensIfPresent([T_WHITESPACE]); |
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} |
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public function skipTokensIfPresent(array $tokenTypes) |
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{ |
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while ($this->valid() && $this->currentIsOneOf($tokenTypes)) { |
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$this->next(); |
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} |
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} |
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/** |
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* @param int $tokenType |
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* |
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* @return bool |
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*/ |
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public function currentIs($tokenType) |
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{ |
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return static::isToken($this->current(), $tokenType); |
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} |
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/** |
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* @param int[] $tokenTypes |
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* |
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* @return bool |
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*/ |
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public function currentIsOneOf(array $tokenTypes) |
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{ |
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return static::isOneOfTokens($this->current(), $tokenTypes); |
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} |
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} |
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Koriit /
PHPDeps
