Parser::parseTokenStream() - Code Metrics - Inspection of "Small refactorings" - zwilias/condparse - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 17974d...3e8f03 )

by Ilias

created 2016-03-06 18:45 UTC

Parser::parseTokenStream() A

↳ Parent: Parser

Complexity

Conditions	2
Paths	2

Size

Total Lines	15
Code Lines	8

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	10
CRAP Score	2

Importance

Changes	4
Bugs	0	Features	1

Metric	Value
c	4
b	0
f	1
dl	0
loc	15
ccs	10
cts	10
cp	1
rs	9.4285
cc	2
eloc	8
nc	2
nop	2
crap	2

<?php


namespace CondParse;


use CondParse\Exception\ParserException;

class Parser implements ParserInterface
{
    /** @var TokenParser */
    private $tokenParser;

    public function __construct(TokenParser $tokenParser = null)
    {
        $this->tokenParser = $tokenParser ?: new TokenParser;
    }

    /**
     * @param \Traversable $tokenStream
     * @param TokenMap $tokenMap
     * @return OperandInterface
     * @throws ParserException
     */
    public function parseTokenStream(\Traversable $tokenStream, TokenMap $tokenMap)
    {
        $operandStack = new OperandStack();
        $operatorStack = new \SplStack();

        foreach ($tokenStream as $lexerToken) {
            $this->tokenParser->parseToken(
                new TokenParserParameter($lexerToken, $operandStack, $operatorStack, $tokenMap)
            );
        }

        $this->unfoldStack($tokenMap, $operatorStack, $operandStack);

        return $operandStack->top();
    }

    /**
     * @param TokenMap $tokenMap
     * @param \SplStack $operatorStack
     * @param OperandStack $operandStack
     */
    protected function unfoldStack(TokenMap $tokenMap, $operatorStack, $operandStack)
    {
        while (!$operatorStack->isEmpty()) {
            $operandStack->push(
                $tokenMap
                    ->buildOperand($operatorStack->pop())
                    ->consumeTokens($operandStack)
            );
        }
    }
}


1		<?php
2
3
4		namespace CondParse;
5
6
7		use CondParse\Exception\ParserException;
8
9		class Parser implements ParserInterface
10		{
11		/** @var TokenParser */
12		private $tokenParser;
13
14	14	public function __construct(TokenParser $tokenParser = null)
15		{
16	14	$this->tokenParser = $tokenParser ?: new TokenParser;
17	14	}
18
19		/**
20		* @param \Traversable $tokenStream
21		* @param TokenMap $tokenMap
22		* @return OperandInterface
23		* @throws ParserException
24		*/
25	14	public function parseTokenStream(\Traversable $tokenStream, TokenMap $tokenMap)
26		{
27	14	$operandStack = new OperandStack();
28	14	$operatorStack = new \SplStack();
29
30	14	foreach ($tokenStream as $lexerToken) {
31	13	$this->tokenParser->parseToken(
32	13	new TokenParserParameter($lexerToken, $operandStack, $operatorStack, $tokenMap)
33	13	);
34	14	}
35
36	14	$this->unfoldStack($tokenMap, $operatorStack, $operandStack);
37
38	14	return $operandStack->top();
39		}
40
41		/**
42		* @param TokenMap $tokenMap
43		* @param \SplStack $operatorStack
44		* @param OperandStack $operandStack
45		*/
46	14	protected function unfoldStack(TokenMap $tokenMap, $operatorStack, $operandStack)
47		{
48	14	while (!$operatorStack->isEmpty()) {
49	7	$operandStack->push(
50		$tokenMap
51	7	->buildOperand($operatorStack->pop())
52	7	->consumeTokens($operandStack)
53	7	);
54	7	}
55	14	}
56		}
57

zwilias / condparse

Push — master ( 17974d...3e8f03 )

Parser::parseTokenStream() A

Complexity

Size

Duplication

Code Coverage

Importance

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