Remorhaz\UniLex\RegExp\FSM\Dfa

Complexity

Total Complexity

8

Size/Duplication

Total Lines	45
Duplicated Lines	0 %

Importance

Changes	1
Bugs	0	Features	1

4 Methods

Rating	Name	Duplication	Size	Complexity
A	setSymbolTable()	0	6	2
A	getTransitionMap()	0	7	2
A	getSymbolTable()	0	7	2
A	getStateMap()	0	7	2

<?php

declare(strict_types=1);

namespace Remorhaz\UniLex\RegExp\FSM;

use Remorhaz\UniLex\Exception;

class Dfa
{
    private $stateMap;

    private $symbolTable;

    private $transitionMap;

    public function getStateMap(): StateMap
    {
        if (!isset($this->stateMap)) {
            $this->stateMap = new StateMap();
        }

        return $this->stateMap;
    }

    public function getTransitionMap(): TransitionMap
    {
        if (!isset($this->transitionMap)) {
            $this->transitionMap = new TransitionMap($this->getStateMap());
        }

        return $this->transitionMap;
    }

    public function getSymbolTable(): SymbolTable
    {
        if (!isset($this->symbolTable)) {
            $this->symbolTable = new SymbolTable();
        }

        return $this->symbolTable;
    }

    /**
     * @param SymbolTable $symbolTable
     * @throws Exception
     */
    public function setSymbolTable(SymbolTable $symbolTable): void
    {
        if (isset($this->symbolTable)) {
            throw new Exception("Symbol table already exists in DFA");
        }
        $this->symbolTable = $symbolTable;
    }
}