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<?php |
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namespace Gettext\Utils; |
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use Gettext\Extractors\PhpCode; |
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class PhpFunctionsScanner extends FunctionsScanner |
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{ |
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protected $tokens; |
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/** |
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* Constructor. |
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* |
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* @param string $code The php code to scan |
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*/ |
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public function __construct($code) |
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{ |
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$this->tokens = token_get_all($code); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getFunctions() |
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{ |
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$count = count($this->tokens); |
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$bufferFunctions = array(); |
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/* @var ParsedFunction[] $bufferFunctions */ |
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$functions = array(); |
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/* @var ParsedFunction[] $functions */ |
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for ($k = 0; $k < $count; ++$k) { |
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$value = $this->tokens[$k]; |
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if (is_string($value)) { |
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$s = $value; |
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} else { |
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$s = token_name($value[0]).' >'.$value[1].'<'; |
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} |
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if (is_string($value)) { |
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if (isset($bufferFunctions[0])) { |
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switch ($value) { |
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case ',': |
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$bufferFunctions[0]->nextArgument(); |
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break; |
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case ')': |
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$functions[] = array_shift($bufferFunctions)->close(); |
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break; |
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case '.': |
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break; |
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default: |
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$bufferFunctions[0]->stopArgument(); |
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break; |
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} |
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} |
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continue; |
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} |
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switch ($value[0]) { |
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case T_CONSTANT_ENCAPSED_STRING: |
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//add an argument to the current function |
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if (isset($bufferFunctions[0])) { |
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$bufferFunctions[0]->addArgumentChunk(PhpCode::convertString($value[1])); |
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} |
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break; |
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case T_STRING: |
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if (isset($bufferFunctions[0])) { |
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$bufferFunctions[0]->stopArgument(); |
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} |
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//new function found |
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for ($j = $k + 1; $j < $count; ++$j) { |
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$nextToken = $this->tokens[$j]; |
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if (is_array($nextToken) && ($nextToken[0] === T_COMMENT || $nextToken[0] === T_WHITESPACE)) { |
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continue; |
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} |
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if ($nextToken === '(') { |
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array_unshift($bufferFunctions, new ParsedFunction($value[1], $value[2])); |
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$k = $j; |
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} |
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break; |
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} |
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break; |
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case T_WHITESPACE: |
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case T_COMMENT: |
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break; |
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default: |
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if (isset($bufferFunctions[0])) { |
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$bufferFunctions[0]->stopArgument(); |
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} |
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break; |
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} |
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} |
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return $functions; |
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} |
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} |
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oscarotero /
Gettext
Loading history...
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.