valueResolver = $valueResolver;
}
public function getRuleDefinition() : RuleDefinition
{
return new RuleDefinition('Change switch (true) to if statements', [new CodeSample(<<<'CODE_SAMPLE'
class SomeClass
{
public function run()
{
switch (true) {
case $value === 0:
return 'no';
case $value === 1:
return 'yes';
case $value === 2:
return 'maybe';
};
}
}
CODE_SAMPLE
, <<<'CODE_SAMPLE'
class SomeClass
{
public function run()
{
if ($value === 0) {
return 'no';
}
if ($value === 1) {
return 'yes';
}
if ($value === 2) {
return 'maybe';
}
}
}
CODE_SAMPLE
)]);
}
/**
* @return array>
*/
public function getNodeTypes() : array
{
return [Switch_::class];
}
/**
* @param Switch_ $node
* @return Stmt[]|null
*/
public function refactor(Node $node) : ?array
{
if (!$this->valueResolver->isTrue($node->cond)) {
return null;
}
$newStmts = [];
$defaultCase = null;
foreach ($node->cases as $case) {
if (!\end($case->stmts) instanceof Return_) {
return null;
}
if (!$case->cond instanceof Expr) {
$defaultCase = $case;
continue;
}
$if = new If_($case->cond);
$if->stmts = $case->stmts;
$newStmts[] = $if;
}
if ($defaultCase instanceof Case_) {
$newStmts = \array_merge($newStmts, $defaultCase->stmts);
}
if ($newStmts === []) {
return null;
}
return $newStmts;
}
}