| public findPrevious ( integer | array $types, integer $start, integer $end = null, boolean $exclude = false, string $value = null, boolean $local = false ) : integer | boolean | ||
| $types | integer | array | The type(s) of tokens to search for. |
| $start | integer | The position to start searching from in the token stack. |
| $end | integer | The end position to fail if no token is found. if not specified or null, end will default to the start of the token stack. |
| $exclude | boolean | If true, find the previous token that are NOT of the types specified in $types. |
| $value | string | The value that the token(s) must be equal to. If value is omitted, tokens with any value will be returned. |
| $local | boolean | If true, tokens outside the current statement will not be checked. IE. checking will stop at the previous semi-colon found. |
| return | integer | boolean | |
public function findPrevious($types, $start, $end = null, $exclude = false, $value = null, $local = false)
{
$types = (array) $types;
if ($end === null) {
$end = 0;
}
for ($i = $start; $i >= $end; $i--) {
$found = (bool) $exclude;
foreach ($types as $type) {
if ($this->_tokens[$i]['code'] === $type) {
$found = !$exclude;
break;
}
}
if ($found === true) {
if ($value === null) {
return $i;
} else {
if ($this->_tokens[$i]['content'] === $value) {
return $i;
}
}
}
if ($local === true) {
if (isset($this->_tokens[$i]['scope_opener']) === true && $i === $this->_tokens[$i]['scope_closer']) {
$i = $this->_tokens[$i]['scope_opener'];
} else {
if (isset($this->_tokens[$i]['bracket_opener']) === true && $i === $this->_tokens[$i]['bracket_closer']) {
$i = $this->_tokens[$i]['bracket_opener'];
} else {
if (isset($this->_tokens[$i]['parenthesis_opener']) === true && $i === $this->_tokens[$i]['parenthesis_closer']) {
$i = $this->_tokens[$i]['parenthesis_opener'];
} else {
if ($this->_tokens[$i]['code'] === T_SEMICOLON) {
break;
}
}
}
}
}
}
//end for
return false;
} public function process(CodeSnifferFile $file, $stackPtr)
{
$tokens = $file->getTokens();
$fileName = $file->getFilename();
// Collect use statement aliases
if ($tokens[$stackPtr]['code'] === T_USE) {
/** function () use ($var) {} */
$previousPtr = $file->findPrevious(T_WHITESPACE, $stackPtr - 1, null, true);
if ($tokens[$previousPtr]['code'] === T_CLOSE_PARENTHESIS) {
return;
}
/** use Trait; */
if ($file->findPrevious([T_CLASS, T_TRAIT], $stackPtr)) {
return;
}
list($stackPtr, $namespaceAlias, $fullyQualifiedNamespace) = $this->getNamespace($stackPtr + 1, $file);
if (!isset(static::$aliases[$fileName])) {
static::$aliases[$fileName] = [];
}
static::$aliases[$fileName][] = $namespaceAlias;
return;
}
// Check if aliased exist for caught exceptions
$catchPtr = $tokens[$stackPtr]['parenthesis_opener'] + 1;
$exceptionPtr = $file->findNext([T_CLASS, T_INTERFACE], $catchPtr, $tokens[$stackPtr]['parenthesis_closer'], true);
$exceptionName = $tokens[$exceptionPtr]['content'];
if (!in_array($exceptionName, static::$aliases[$fileName], false)) {
$file->addError(sprintf('Trying to catch an undefined exception. Please add use-statement for "%s"', $exceptionName), $exceptionPtr);
}
}
