PHPCompatibility\Sniffs\PHP\ForbiddenNamesSniff::processNonString()

Complexity

Conditions	34
Paths	35

Size

Total Lines	132
Code Lines	60

Duplication

Lines	0
Ratio	0 %

Importance

Changes

0

<?php
    public function processNonString(\PHP_CodeSniffer_File $phpcsFile, $stackPtr, $tokens)
    {
        $nextNonEmpty = $phpcsFile->findNext(\PHP_CodeSniffer_Tokens::$emptyTokens, ($stackPtr + 1), null, true);
        if ($nextNonEmpty === false) {
            return;
        }

        /*
         * Deal with anonymous classes - `class` before a reserved keyword is sometimes
         * misidentified as `T_ANON_CLASS`.
         * In PHPCS < 2.3.4 these were tokenized as T_CLASS no matter what.
         */
        if ($tokens[$stackPtr]['type'] === 'T_ANON_CLASS' || $tokens[$stackPtr]['type'] === 'T_CLASS') {
            $prevNonEmpty = $phpcsFile->findPrevious(\PHP_CodeSniffer_Tokens::$emptyTokens, ($stackPtr - 1), null, true);
            if ($prevNonEmpty !== false && $tokens[$prevNonEmpty]['type'] === 'T_NEW') {
                return;
            }
        }

        /*
         * PHP 5.6 allows for use const and use function, but only if followed by the function/constant name.
         * - `use function HelloWorld` => move to the next token (HelloWorld) to verify.
         * - `use const HelloWorld` => move to the next token (HelloWorld) to verify.
         */
        elseif ($tokens[$stackPtr]['type'] === 'T_USE'
            && isset($this->validUseNames[strtolower($tokens[$nextNonEmpty]['content'])]) === true
        ) {
            $maybeUseNext = $phpcsFile->findNext(\PHP_CodeSniffer_Tokens::$emptyTokens, ($nextNonEmpty + 1), null, true, null, true);
            if ($maybeUseNext !== false && $this->isEndOfUseStatement($tokens[$maybeUseNext]) === false) {
                // Prevent duplicate messages: `const` is T_CONST in PHPCS 1.x and T_STRING in PHPCS 2.x.
                if ($this->isLowPHPCS === true) {
                    return;
                }
                $nextNonEmpty = $maybeUseNext;
            }
        }

        /*
         * Deal with visibility modifiers.
         * - `use HelloWorld { sayHello as protected; }` => valid, bow out.
         * - `use HelloWorld { sayHello as private myPrivateHello; }` => move to the next token to verify.
         */
        elseif ($tokens[$stackPtr]['type'] === 'T_AS'
            && isset($this->allowed_modifiers[$tokens[$nextNonEmpty]['code']]) === true
            && $this->inUseScope($phpcsFile, $stackPtr) === true
        ) {
            $maybeUseNext = $phpcsFile->findNext(\PHP_CodeSniffer_Tokens::$emptyTokens, ($nextNonEmpty + 1), null, true, null, true);
            if ($maybeUseNext === false || $this->isEndOfUseStatement($tokens[$maybeUseNext]) === true) {
                return;
            }

            $nextNonEmpty = $maybeUseNext;
        }

        /*
         * Deal with functions declared to return by reference.
         */
        elseif ($tokens[$stackPtr]['type'] === 'T_FUNCTION'
            && $tokens[$nextNonEmpty]['type'] === 'T_BITWISE_AND'
        ) {
            $maybeUseNext = $phpcsFile->findNext(\PHP_CodeSniffer_Tokens::$emptyTokens, ($nextNonEmpty + 1), null, true, null, true);
            if ($maybeUseNext === false) {
                // Live coding.
                return;
            }

            $nextNonEmpty = $maybeUseNext;
        }

        /*
         * Deal with nested namespaces.
         */
        elseif ($tokens[$stackPtr]['type'] === 'T_NAMESPACE') {
            if ($tokens[$stackPtr + 1]['code'] === T_NS_SEPARATOR) {
                // Not a namespace declaration, but use of, i.e. namespace\someFunction();
                return;
            }

            $endToken      = $phpcsFile->findNext(array(T_SEMICOLON, T_OPEN_CURLY_BRACKET), ($stackPtr + 1), null, false, null, true);
            $namespaceName = trim($phpcsFile->getTokensAsString(($stackPtr + 1), ($endToken - $stackPtr - 1)));
            if (empty($namespaceName) === true) {
                return;
            }

            $namespaceParts = explode('\\', $namespaceName);
            foreach ($namespaceParts as $namespacePart) {
                $partLc = strtolower($namespacePart);
                if (isset($this->invalidNames[$partLc]) === false) {
                    continue;
                }

                // Find the token position of the part which matched.
                for ($i = ($stackPtr + 1); $i < $endToken; $i++) {
                    if ($tokens[$i]['content'] === $namespacePart) {
                        $nextNonEmpty = $i;
                        break;
                    }
                }
            }
            unset($i, $namespacePart, $partLc);
        }


        $nextContentLc = strtolower($tokens[$nextNonEmpty]['content']);
        if (isset($this->invalidNames[$nextContentLc]) === false) {
            return;
        }

        /*
         * Deal with PHP 7 relaxing the rules.
         * "As of PHP 7.0.0 these keywords are allowed as property, constant, and method names
         * of classes, interfaces and traits, except that class may not be used as constant name."
         */
        if ((($tokens[$stackPtr]['type'] === 'T_FUNCTION'
                && $this->inClassScope($phpcsFile, $stackPtr, false) === true)
            || ($tokens[$stackPtr]['type'] === 'T_CONST'
                && $this->isClassConstant($phpcsFile, $stackPtr) === true
                && $nextContentLc !== 'class')
            ) && $this->supportsBelow('5.6') === false
        ) {
            return;
        }

        if ($this->supportsAbove($this->invalidNames[$nextContentLc])) {
            $data  = array(
                $tokens[$nextNonEmpty]['content'],
                $this->invalidNames[$nextContentLc],
            );
            $this->addError($phpcsFile, $stackPtr, $tokens[$nextNonEmpty]['content'], $data);
        }

    }//end processNonString()