Remorhaz\UniLex\RegExp\FSM\Nfa

Complexity

Total Complexity

10

Size/Duplication

Total Lines	52
Duplicated Lines	0 %

Importance

Changes	1
Bugs	0	Features	0

5 Methods

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

<?php

declare(strict_types=1);

namespace Remorhaz\UniLex\RegExp\FSM;

use Remorhaz\UniLex\Exception;

class Nfa
{
    private $stateMap;

    private $epsilonTransitionMap;

    private $symbolTransitionMap;

    private $symbolTable;

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

        return $this->stateMap;
    }

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

        return $this->epsilonTransitionMap;
    }

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

        return $this->symbolTransitionMap;
    }

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

        return $this->symbolTable;
    }

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