Reflection\UsesBlockParser

Complexity

Total Complexity

32

Size/Duplication

Total Lines	233
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	2

Test Coverage

Coverage

98.63%

Importance

Changes

0

17 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	3	1
A	getUsesBlock()	0	3	1
A	setUsesBlock()	0	5	1
A	isUseStatementBuilding()	0	3	1
A	setUseStatementIsBuilding()	0	5	1
A	setUseStatementIsNotBuilding()	0	5	1
A	getCurrentClassStatement()	0	3	1
A	setCurrentClassStatement()	0	5	1
A	clearCurrentClassStatement()	0	5	1
A	getCurrentAliasStatement()	0	3	1
A	setCurrentAliasStatement()	0	5	1
A	getCurrentStatementType()	0	3	1
A	setCurrentStatementType()	0	5	1
C	getUseStatements()	0	49	14
A	getTokens()	0	3	1
A	setCurrentStatement()	0	12	3
A	clearCurrentStatements()	0	4	1

<?php

namespace Reflection;

/**
 * Class UsesBlockParser
 * @package Reflection
 */
class UsesBlockParser {

    /**
     * @const string
     */
    const CLASS_STATEMENT_TYPE = 'class';

    /**
     * @const string
     */
    const ALIAS_STATEMENT_TYPE = 'alias';

    /**
     * @var string
     */
    private $usesBlock;

    /**
     * @var boolean
     */
    private $isUseStatementBuilding = false;

    /**
     * @var string
     */
    private $currentClassStatement = '';

    /**
     * @var string
     */
    private $currentAliasStatement = '';

    /**
     * @var string
     */
    private $currentStatementType = '';

    /**
     * UsesBlockParser constructor.
     * @param string $usesBlock
     */
    public function __construct(string $usesBlock) {
        $this->setUsesBlock($usesBlock);
    }

    /**
     * @return string
     */
    public function getUsesBlock(): string {
        return $this->usesBlock;
    }

    /**
     * @param string $usesBlock
     * @return UsesBlockParser
     */
    public function setUsesBlock(string $usesBlock): UsesBlockParser {
        $this->usesBlock = $usesBlock;

        return $this;
    }

    /**
     * @return boolean
     */
    protected function isUseStatementBuilding(): bool {
        return $this->isUseStatementBuilding;
    }

    /**
     * @return UsesBlockParser
     */
    protected function setUseStatementIsBuilding(): UsesBlockParser {
        $this->isUseStatementBuilding = true;
        
        return $this;
    }

    /**
     * @return UsesBlockParser
     */
    protected function setUseStatementIsNotBuilding(): UsesBlockParser {
        $this->isUseStatementBuilding = false;

        return $this;
    }

    /**
     * @return string
     */
    protected function getCurrentClassStatement(): string {
        return $this->currentClassStatement;
    }

    /**
     * @param string $classStatement
     * @return UsesBlockParser
     */
    protected function setCurrentClassStatement(string $classStatement): UsesBlockParser {
        $this->currentClassStatement .= $classStatement;
        
        return $this;
    }

    /**
     * @return UsesBlockParser
     */
    protected function clearCurrentClassStatement(): UsesBlockParser {
        $this->currentClassStatement = '';

        return $this;
    }

    /**
     * @return string
     */
    protected function getCurrentAliasStatement(): string {
        return $this->currentAliasStatement;
    }

    /**
     * @param string $aliasStatement
     * @return UsesBlockParser
     */
    protected function setCurrentAliasStatement(string $aliasStatement): UsesBlockParser {
        $this->currentAliasStatement = $aliasStatement;
        
        return $this;
    }

    /**
     * @return string
     */
    protected function getCurrentStatementType(): string {
        return $this->currentStatementType;
    }

    /**
     * @param string $currentStatementType
     * @return UsesBlockParser
     */
    protected function setCurrentStatementType(string $currentStatementType): UsesBlockParser {
        $this->currentStatementType = $currentStatementType;
        
        return $this;
    }
    
    /**
     * @return UseStatements
     */
    public function getUseStatements(): UseStatements {
        $useStatements = new UseStatements();
        
        foreach ($this->getTokens() as $token) {
            if (is_array($token)) {
                if ($token[0] === T_USE) {
                    $this->setUseStatementIsBuilding()
                        ->setCurrentStatementType(self::CLASS_STATEMENT_TYPE);

                    continue;
                }

                if ($token[0] === T_AS) {
                    $this->setCurrentStatementType(self::ALIAS_STATEMENT_TYPE);

                    continue;
                }

                if ($this->isUseStatementBuilding() && $this->getCurrentStatementType()) {
                    switch ($token[0]) {
                        case T_NS_SEPARATOR:
                        case T_STRING:
                            $this->setCurrentStatement($token[1]);

                            break;
                    }
                }
            } else {
                if (($token === ';' || $token === ',') && $this->isUseStatementBuilding()) {
                    $useStatements->add(new UseStatement(
                        $this->getCurrentClassStatement(),
                        $this->getCurrentAliasStatement()
                    ));

                    $this->clearCurrentStatements();

                    if ($token === ';') {
                        $this->setUseStatementIsNotBuilding();
                    }

                    if ($token === ',') {
                        $this->setCurrentStatementType(self::CLASS_STATEMENT_TYPE);
                    }
                }
            }
        }

        return $useStatements;
    }
    
    /**
     * @return array
     */
    private function getTokens(): array {
        return token_get_all($this->getUsesBlock());
    }

    /**
     * @param string $value
     * @return UsesBlockParser
     */
    private function setCurrentStatement(string $value): UsesBlockParser {
        $type = $this->getCurrentStatementType();
        
        switch ($type) {
            case self::CLASS_STATEMENT_TYPE:
                return $this->setCurrentClassStatement($value);
            case self::ALIAS_STATEMENT_TYPE:
                return $this->setCurrentAliasStatement($value);
        }
        
        return $this;
    }

    /**
     * @return UsesBlockParser
     */
    protected function clearCurrentStatements(): UsesBlockParser {
        return $this->clearCurrentClassStatement()
            ->setCurrentAliasStatement('');
    }
    
}