ArcanistControlStatementSpacingXHPASTLinterRule.php
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ArcanistControlStatementSpacingXHPASTLinterRule.php
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	<?php

	final class ArcanistControlStatementSpacingXHPASTLinterRule
	extends ArcanistXHPASTLinterRule {

	const ID = 26;

	public function getLintName() {
	return pht('Space After Control Statement');
	}

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

	public function process(XHPASTNode $root) {
	foreach ($root->getTokens() as $id => $token) {
	switch ($token->getTypeName()) {
	case 'T_IF':
	case 'T_ELSE':
	case 'T_FOR':
	case 'T_FOREACH':
	case 'T_WHILE':
	case 'T_DO':
	case 'T_SWITCH':
	case 'T_CATCH':
	$after = $token->getNonsemanticTokensAfter();
	if (empty($after)) {
	$this->raiseLintAtToken(
	$token,
	pht('Convention: put a space after control statements.'),
	$token->getValue().' ');
	} else if (count($after) === 1) {
	$space = head($after);

	// If we have an else clause with braces, $space may not be
	// a single white space. e.g.,
	//
	// if ($x)
	// echo 'foo'
	// else // <- $space is not " " but "\n ".
	// echo 'bar'
	//
	// We just require it starts with either a whitespace or a newline.
	if ($token->getTypeName() === 'T_ELSE' \|\|
	$token->getTypeName() === 'T_DO') {
	break;
	}

	if ($space->isAnyWhitespace() && $space->getValue() !== ' ') {
	$this->raiseLintAtToken(
	$space,
	pht('Convention: put a single space after control statements.'),
	' ');
	}
	}
	break;
	}
	}
	}

	}

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