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ExceptionPrinter::print()   A

Complexity

Conditions 2
Paths 2

Size

Total Lines 7
Code Lines 4

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
dl 0
loc 7
rs 9.4285
c 0
b 0
f 0
cc 2
eloc 4
nc 2
nop 1
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<?php namespace Tarsana\Command\Console;
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use Tarsana\Syntax\ArraySyntax;
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use Tarsana\Syntax\Exceptions\ParseException;
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use Tarsana\Syntax\ObjectSyntax;
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use Tarsana\Syntax\Syntax;
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/**
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 * Transforms an exception to a string to be shown on the console.
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 */
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class ExceptionPrinter {
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    /**
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     * Converts the given exception to a string.
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     *
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     * @param  \Exception $e
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     * @return string
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     */
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    public function print(\Exception $e) : string
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    {
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        if ($e instanceof ParseException)
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            return $this->printParseException($e, true);
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Unused Code introduced by
The call to ExceptionPrinter::printParseException() has too many arguments starting with true.

This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue.

If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress.

In this case you can add the @ignore PhpDoc annotation to the duplicate definition and it will be ignored.

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        return "<error>{$e}</error>";
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    }
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    /**
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     * Converts a parse exception to a string.
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     *
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     * @param  Tarsana\Syntax\Exceptions\ParseException $e
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     * @return string
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     */
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    public function printParseException(ParseException $e) : string
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    {
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        $syntax = $e->syntax();
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        $error  = '';
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        if ($syntax instanceof ObjectSyntax) {
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            $i = $e->extra();
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            if ($i['type'] == 'invalid-field')
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                $error = "{$i['field']} is invalid!";
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            if ($i['type'] == 'missing-field')
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                $error = "{$i['field']} is missing!";
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            if ($i['type'] == 'additional-items') {
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                $items = implode(', ', $i['items']);
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                $error = "additional items {$items}";
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            }
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        }
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        $syntax = $this->printSyntax($e->syntax());
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        $output = "<reset>Failed to parse <warn>'{$e->input()}'</warn> as <info>{$syntax}</info> <error>{$error}</error>";
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        $previous = $e->previous();
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        if ($previous) {
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            $output .= PHP_EOL . $this->printParseException($previous);
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        }
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        return $output;
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    }
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    protected function printSyntax(Syntax $s, bool $short = false) : string
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    {
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        if ($s instanceof ObjectSyntax) {
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            if ($short) return 'object';
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            return implode($s->separator(), array_keys($s->fields()));
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        }
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        if ($s instanceof ArraySyntax) {
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            if ($short) return 'array';
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            return $this->printSyntax($s->syntax()).$s->separator().'...';
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        }
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        return (string) $s;
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    }
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}
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