Completed
Push — master ( 2a4290...c23846 )
by Nico
01:31
created

CharAt::call()   B

Complexity

Conditions 4
Paths 6

Size

Total Lines 25
Code Lines 16

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 14
CRAP Score 4

Importance

Changes 0
Metric Value
dl 0
loc 25
ccs 14
cts 14
cp 1
rs 8.5806
c 0
b 0
f 0
cc 4
eloc 16
nc 6
nop 1
crap 4
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<?php
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/**
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 * @license     http://opensource.org/licenses/mit-license.php MIT
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 * @link        https://github.com/nicoSWD
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 * @author      Nicolas Oelgart <[email protected]>
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 */
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declare(strict_types=1);
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namespace nicoSWD\Rules\Grammar\JavaScript\Methods;
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use nicoSWD\Rules\Core\CallableFunction;
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use nicoSWD\Rules\Tokens\BaseToken;
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use nicoSWD\Rules\Tokens\TokenInteger;
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use nicoSWD\Rules\Tokens\TokenString;
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final class CharAt extends CallableFunction
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{
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    /**
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     * @param BaseToken $offset
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     * @return BaseToken
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     */
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    public function call($offset = null): BaseToken
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    {
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        $tokenValue = $this->token->getValue();
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        if (!$offset) {
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            $offset = 0;
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        }
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        elseif (!$offset instanceof TokenInteger) {
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            $offset = (int) $offset->getValue();
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        } else {
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            $offset = $offset->getValue();
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        }
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        if (!isset($tokenValue[$offset])) {
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            $char = '';
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        } else {
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            $char = $tokenValue[$offset];
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        }
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        return new TokenString(
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            $char,
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            $this->token->getOffset(),
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            $this->token->getStack()
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        );
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    }
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}
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