1
0
mirror of https://github.com/danog/psalm.git synced 2024-12-16 03:17:02 +01:00
psalm/src/Psalm/Internal/Analyzer/Statements/Expression/IssetAnalyzer.php
2020-05-18 15:13:27 -04:00

59 lines
1.7 KiB
PHP

<?php
namespace Psalm\Internal\Analyzer\Statements\Expression;
use PhpParser;
use Psalm\Internal\Analyzer\Statements\ExpressionAnalyzer;
use Psalm\Internal\Analyzer\StatementsAnalyzer;
use Psalm\Context;
use Psalm\Type;
class IssetAnalyzer
{
/**
* @param StatementsAnalyzer $statements_analyzer
* @param PhpParser\Node\Expr\Isset_ $stmt
* @param Context $context
*
* @return void
*/
public static function analyze(
StatementsAnalyzer $statements_analyzer,
PhpParser\Node\Expr\Isset_ $stmt,
Context $context
) {
foreach ($stmt->vars as $isset_var) {
if ($isset_var instanceof PhpParser\Node\Expr\PropertyFetch
&& $isset_var->var instanceof PhpParser\Node\Expr\Variable
&& $isset_var->var->name === 'this'
&& $isset_var->name instanceof PhpParser\Node\Identifier
) {
$var_id = '$this->' . $isset_var->name->name;
if (!isset($context->vars_in_scope[$var_id])) {
$context->vars_in_scope[$var_id] = Type::getMixed();
$context->vars_possibly_in_scope[$var_id] = true;
}
}
self::analyzeIssetVar($statements_analyzer, $isset_var, $context);
}
$statements_analyzer->node_data->setType($stmt, Type::getBool());
}
public static function analyzeIssetVar(
StatementsAnalyzer $statements_analyzer,
PhpParser\Node\Expr $stmt,
Context $context
) : bool {
$context->inside_isset = true;
$result = ExpressionAnalyzer::analyze($statements_analyzer, $stmt, $context);
$context->inside_isset = false;
return $result;
}
}