ArcanistArrayIndexSpacingXHPASTLinterRule.php
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ArcanistArrayIndexSpacingXHPASTLinterRule.php
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	<?php

	final class ArcanistArrayIndexSpacingXHPASTLinterRule
	extends ArcanistXHPASTLinterRule {

	const ID = 28;

	public function getLintName() {
	return pht('Spacing Before Array Index');
	}

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

	public function process(XHPASTNode $root) {
	$indexes = $root->selectDescendantsOfType('n_INDEX_ACCESS');

	foreach ($indexes as $index) {
	$tokens = $index->getChildByIndex(0)->getTokens();
	$last = array_pop($tokens);
	$trailing = $last->getNonsemanticTokensAfter();
	$trailing_text = implode('', mpull($trailing, 'getValue'));

	if (preg_match('/^ +$/', $trailing_text)) {
	$this->raiseLintAtOffset(
	$last->getOffset() + strlen($last->getValue()),
	pht('Convention: no spaces before index access.'),
	$trailing_text,
	'');
	}
	}
	}

	}