CondParse\Parser::parseTokenStream()

Complexity

Conditions	4
Paths	8

Size

Total Lines	23
Code Lines	14

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	17
CRAP Score	4

Importance

Changes	3
Bugs	0	Features	1

<?php
    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)
            );
        }

        while (! $operatorStack->isEmpty()) {
            $operandStack->push(
                $tokenMap
                    ->buildOperand($operatorStack->pop())
                    ->consumeTokens($operandStack)
            );
        }

        return $operandStack->isEmpty()
            ? null
            : $operandStack->top();
    }
}