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<?php |
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declare(strict_types=1); |
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/** |
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* @license http://opensource.org/licenses/mit-license.php MIT |
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* @link https://github.com/nicoSWD |
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* @author Nicolas Oelgart <[email protected]> |
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*/ |
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namespace nicoSWD\Rules; |
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use nicoSWD\Rules\Tokens\BaseToken; |
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class Compiler |
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{ |
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private $output = ''; |
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private $openParenthesis = 0; |
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private $closedParenthesis = 0; |
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private $incompleteCondition = false; |
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private $operatorRequired = false; |
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220 |
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public function clear() |
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{ |
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$this->operatorRequired = false; |
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$this->incompleteCondition = false; |
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$this->output = ''; |
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220 |
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} |
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160 |
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public function getCompiledRule() |
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{ |
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if ($this->isIncompleteCondition()) { |
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4 |
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throw new Exceptions\ParserException( |
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4 |
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'Incomplete and/or condition' |
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); |
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156 |
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} elseif (!$this->numParenthesesMatch()) { |
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2 |
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throw new Exceptions\ParserException( |
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2 |
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'Missing closing parenthesis' |
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); |
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} |
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return $this->output; |
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} |
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20 |
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public function openParentheses(BaseToken $token) |
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{ |
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$this->openParenthesis++; |
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$this->output .= '('; |
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} |
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20 |
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public function closeParentheses(BaseToken $token) |
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{ |
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20 |
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if ($this->openParenthesis < 1) { |
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2 |
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throw new Exceptions\ParserException(sprintf( |
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'Missing opening parenthesis at position %d on line %d', |
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$token->getPosition(), |
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2 |
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$token->getLine() |
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)); |
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} |
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$this->closedParenthesis++; |
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$this->output .= ')'; |
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} |
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22 |
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public function addParentheses(BaseToken $token) |
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{ |
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22 |
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if ($token instanceof Tokens\TokenOpeningParenthesis) { |
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20 |
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$lastChar = substr($this->output, -1); |
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20 |
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if ($lastChar !== '' && $lastChar !== '&' && $lastChar !== '|' && $lastChar !== '(') { |
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4 |
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throw Exceptions\ParserException::unexpectedToken($token); |
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} |
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$this->openParentheses($token); |
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} else { |
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$this->closeParentheses($token); |
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} |
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} |
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public function addLogical(BaseToken $token) |
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{ |
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if (!$this->operatorRequired) { |
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throw Exceptions\ParserException::unexpectedToken($token); |
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} |
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if ($token instanceof Tokens\TokenAnd) { |
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$this->output .= '&'; |
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} else { |
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$this->output .= '|'; |
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} |
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36 |
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$this->operatorRequired = false; |
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$this->incompleteCondition = true; |
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} |
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172 |
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public function addBoolean(bool $bool) |
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{ |
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$lastChar = substr($this->output, -1); |
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if ($lastChar === '1' || $lastChar === '0') { |
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throw new \Exception('Missing operator'); |
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} |
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172 |
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$this->operatorRequired = true; |
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$this->incompleteCondition = false; |
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$this->output .= $bool ? '1' : '0'; |
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} |
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156 |
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private function numParenthesesMatch(): bool |
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{ |
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return $this->openParenthesis === $this->closedParenthesis; |
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} |
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160 |
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private function isIncompleteCondition(): bool |
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{ |
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return $this->incompleteCondition; |
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} |
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176 |
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public function operatorRequired(bool $bool) |
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{ |
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$this->operatorRequired = $bool; |
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} |
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178 |
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public function flipOperatorRequired(BaseToken $token) |
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{ |
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178 |
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if ($this->operatorRequired) { |
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2 |
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throw new Exceptions\ParserException(sprintf( |
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2 |
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'Missing operator at position %d on line %d', |
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2 |
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$token->getPosition(), |
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2 |
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$token->getLine() |
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)); |
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} |
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132
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178 |
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$this->operatorRequired = !$this->operatorRequired; |
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} |
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134
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} |
nicoSWD /
php-rule-parser
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.