src/Fixer/FunctionNotation/ReturnTypeDeclarationFixer.php
protected function applyFix(\SplFileInfo $file, Tokens $tokens)
    {
        $oneSpaceBefore = 'one' === $this->configuration['space_before'];

        for ($index = 0, $limit = $tokens->count(); $index < $limit; ++$index) {
            if (!$tokens[$index]->isGivenKind(CT::T_TYPE_COLON)) {
                continue;
            }

            $previousIndex = $index - 1;
            $previousToken = $tokens[$previousIndex];

            if ($previousToken->isWhitespace()) {
                if (!$tokens[$tokens->getPrevNonWhitespace($index - 1)]->isComment()) {
                    if ($oneSpaceBefore) {
                        $tokens[$previousIndex] = new Token([T_WHITESPACE, ' ']);
                    } else {
                        $tokens->clearAt($previousIndex);
                    }
                }
            } elseif ($oneSpaceBefore) {
                $tokenWasAdded = $tokens->ensureWhitespaceAtIndex($index, 0, ' ');

                if ($tokenWasAdded) {
                    ++$limit;
                }

                ++$index;
            }

            ++$index;

            $tokenWasAdded = $tokens->ensureWhitespaceAtIndex($index, 0, ' ');

            if ($tokenWasAdded) {
                ++$limit;
            }
        }
    }
protected function applyFix(\SplFileInfo $file, Tokens $tokens)
    {
        $oneSpaceBefore = 'one' === $this->configuration['space_before'];

        for ($index = 0, $limit = $tokens->count(); $index < $limit; ++$index) {
            if (!$tokens[$index]->isGivenKind(CT::T_TYPE_COLON)) {
                continue;
            }

            $previousIndex = $index - 1;
            $previousToken = $tokens[$previousIndex];

            if ($previousToken->isWhitespace()) {
                if (!$tokens[$tokens->getPrevNonWhitespace($index - 1)]->isComment()) {
                    if ($oneSpaceBefore) {
                        $tokens[$previousIndex] = new Token([T_WHITESPACE, ' ']);
                    } else {
                        $tokens->clearAt($previousIndex);
                    }
                }
            } elseif ($oneSpaceBefore) {
                $tokenWasAdded = $tokens->ensureWhitespaceAtIndex($index, 0, ' ');

                if ($tokenWasAdded) {
                    ++$limit;
                }

                ++$index;
            }

            ++$index;

            $tokenWasAdded = $tokens->ensureWhitespaceAtIndex($index, 0, ' ');

            if ($tokenWasAdded) {
                ++$limit;
            }
        }
    }
{@inheritdoc}