ArcanistUnaryPostfixExpressionSpacingXHPASTLinterRule.php
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ArcanistUnaryPostfixExpressionSpacingXHPASTLinterRule.php
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	<?php

	final class ArcanistUnaryPostfixExpressionSpacingXHPASTLinterRule
	extends ArcanistXHPASTLinterRule {

	const ID = 75;

	public function getLintName() {
	return pht('Space Before Unary Postfix Operator');
	}

	public function getLintSeverity() {
	return ArcanistLintSeverity::SEVERITY_WARNING;
	}

	public function process(XHPASTNode $root) {
	$expressions = $root->selectDescendantsOfType('n_UNARY_POSTFIX_EXPRESSION');

	foreach ($expressions as $expression) {
	$operator = $expression->getChildOfType(1, 'n_OPERATOR');
	$operator_value = $operator->getConcreteString();
	list($before, $after) = $operator->getSurroundingNonsemanticTokens();

	if (!empty($before)) {
	$leading_text = implode('', mpull($before, 'getValue'));

	$this->raiseLintAtOffset(
	$operator->getOffset() - strlen($leading_text),
	pht('Unary postfix operators should not be prefixed by whitespace.'),
	$leading_text,
	'');
	}
	}
	}

	}

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