betterStandardPrinter = $betterStandardPrinter;
}
public function getRuleDefinition() : RuleDefinition
{
return new RuleDefinition('Changes multi catch of same exception to single one | separated.', [new CodeSample(<<<'CODE_SAMPLE'
try {
// Some code...
} catch (ExceptionType1 $exception) {
$sameCode;
} catch (ExceptionType2 $exception) {
$sameCode;
}
CODE_SAMPLE
, <<<'CODE_SAMPLE'
try {
// Some code...
} catch (ExceptionType1 | ExceptionType2 $exception) {
$sameCode;
}
CODE_SAMPLE
)]);
}
/**
* @return array>
*/
public function getNodeTypes() : array
{
return [TryCatch::class];
}
/**
* @param TryCatch $node
*/
public function refactor(Node $node) : ?Node
{
if (\count($node->catches) < 2) {
return null;
}
$hasChanged = \false;
foreach ($node->catches as $key => $catch) {
if (!isset($node->catches[$key + 1])) {
break;
}
$currentPrintedCatch = $this->betterStandardPrinter->print($catch->stmts);
$nextPrintedCatch = $this->betterStandardPrinter->print($node->catches[$key + 1]->stmts);
// already duplicated catch → remove it and join the type
if ($currentPrintedCatch === $nextPrintedCatch) {
// use current var as next var
$node->catches[$key + 1]->var = $node->catches[$key]->var;
// merge next types as current merge to next types
$node->catches[$key + 1]->types = \array_merge($node->catches[$key]->types, $node->catches[$key + 1]->types);
unset($node->catches[$key]);
$hasChanged = \true;
}
}
if ($hasChanged) {
return $node;
}
return null;
}
public function provideMinPhpVersion() : int
{
return PhpVersionFeature::MULTI_EXCEPTION_CATCH;
}
}