mirror of
https://github.com/danog/psalm.git
synced 2024-12-11 16:59:45 +01:00
882 lines
29 KiB
PHP
882 lines
29 KiB
PHP
<?php
|
|
|
|
namespace Psalm\Tests;
|
|
|
|
use Psalm\Tests\Traits\InvalidCodeAnalysisTestTrait;
|
|
use Psalm\Tests\Traits\ValidCodeAnalysisTestTrait;
|
|
|
|
class PureAnnotationTest extends TestCase
|
|
{
|
|
use InvalidCodeAnalysisTestTrait;
|
|
use ValidCodeAnalysisTestTrait;
|
|
|
|
/**
|
|
* @return iterable<string,array{string,assertions?:array<string,string>,error_levels?:string[]}>
|
|
*/
|
|
public function providerValidCodeParse(): iterable
|
|
{
|
|
return [
|
|
'simplePureFunction' => [
|
|
'<?php
|
|
namespace Bar;
|
|
|
|
/** @psalm-pure */
|
|
function filterOdd(int $i) : ?int {
|
|
if ($i % 2 === 0) {
|
|
return $i;
|
|
}
|
|
|
|
return null;
|
|
}',
|
|
],
|
|
'pureFunctionCallingBuiltinFunctions' => [
|
|
'<?php
|
|
namespace Bar;
|
|
|
|
/** @psalm-pure */
|
|
function lower(string $s) : string {
|
|
return substr(strtolower($s), 0, 10);
|
|
}',
|
|
],
|
|
'pureWithStrReplace' => [
|
|
'<?php
|
|
/** @psalm-pure */
|
|
function highlight(string $needle, string $output) : string {
|
|
$needle = preg_quote($needle, \'#\');
|
|
$needles = str_replace([\'"\', \' \'], [\'\', \'|\'], $needle);
|
|
$output = preg_replace("#({$needles})#im", "<mark>$1</mark>", $output);
|
|
|
|
return $output;
|
|
}'
|
|
],
|
|
'implicitAnnotations' => [
|
|
'<?php
|
|
abstract class Foo {
|
|
private array $options;
|
|
private array $defaultOptions;
|
|
|
|
function __construct(array $options) {
|
|
$this->setOptions($options);
|
|
$this->setDefaultOptions($this->getOptions());
|
|
}
|
|
|
|
function getOptions(): array {
|
|
return $this->options;
|
|
}
|
|
|
|
public final function setOptions(array $options): void {
|
|
$this->options = $options;
|
|
}
|
|
|
|
public final function setDefaultOptions(array $defaultOptions): void {
|
|
$this->defaultOptions = $defaultOptions;
|
|
}
|
|
}',
|
|
],
|
|
'canCreateObjectWithNoExternalMutations' => [
|
|
'<?php
|
|
/** @psalm-external-mutation-free */
|
|
class Counter {
|
|
private int $count = 0;
|
|
|
|
public function __construct(int $count) {
|
|
$this->count = $count;
|
|
}
|
|
|
|
public function increment() : void {
|
|
$this->count++;
|
|
}
|
|
|
|
public function incrementByTwo() : void {
|
|
$this->count = $this->count + 2;
|
|
}
|
|
|
|
public function incrementByFive() : void {
|
|
$this->count += 5;
|
|
}
|
|
}
|
|
|
|
/** @psalm-pure */
|
|
function makesACounter(int $i) : Counter {
|
|
$c = new Counter($i);
|
|
$c->increment();
|
|
$c->incrementByTwo();
|
|
$c->incrementByFive();
|
|
return $c;
|
|
}',
|
|
],
|
|
'canCreateImmutableObject' => [
|
|
'<?php
|
|
/** @psalm-immutable */
|
|
class A {
|
|
private string $s;
|
|
|
|
public function __construct(string $s) {
|
|
$this->s = $s;
|
|
}
|
|
|
|
public function getShort() : string {
|
|
return substr($this->s, 0, 5);
|
|
}
|
|
}
|
|
|
|
/** @psalm-pure */
|
|
function makeA(string $s) : A {
|
|
$a = new A($s);
|
|
|
|
if ($a->getShort() === "bar") {
|
|
return new A("foo");
|
|
}
|
|
|
|
return $a;
|
|
}'
|
|
],
|
|
'assertIsPureInProductionn' => [
|
|
'<?php
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
function toDateTime(?DateTime $dateTime) : DateTime {
|
|
assert($dateTime instanceof DateTime);
|
|
return $dateTime;
|
|
}'
|
|
],
|
|
'allowArrayMapClosure' => [
|
|
'<?php
|
|
/**
|
|
* @psalm-pure
|
|
* @param string[] $arr
|
|
*/
|
|
function foo(array $arr) : array {
|
|
return \array_map(function(string $s) { return $s;}, $arr);
|
|
}'
|
|
],
|
|
'pureBuiltinCall' => [
|
|
'<?php
|
|
final class Date
|
|
{
|
|
/** @psalm-pure */
|
|
public static function timeZone(string $tzString) : DateTimeZone
|
|
{
|
|
return new \DateTimeZone($tzString);
|
|
}
|
|
}',
|
|
],
|
|
'sortFunctionPure' => [
|
|
'<?php
|
|
/**
|
|
* @psalm-pure
|
|
*
|
|
* @param int[] $ar
|
|
*/
|
|
function foo(array $ar): int
|
|
{
|
|
usort($ar, static function (int $a, int $b): int {
|
|
return $a <=> $b;
|
|
});
|
|
|
|
return $ar[0] ?? 0;
|
|
}',
|
|
],
|
|
'exitFunctionWithNoArgumentIsPure' => [
|
|
'<?php
|
|
/** @psalm-pure */
|
|
function foo(): void {
|
|
exit;
|
|
}
|
|
',
|
|
],
|
|
'exitFunctionWithIntegerArgumentIsPure' => [
|
|
'<?php
|
|
/** @psalm-pure */
|
|
function foo(): void {
|
|
exit(0);
|
|
}
|
|
',
|
|
],
|
|
'dieFunctionWithNoArgumentIsPure' => [
|
|
'<?php
|
|
/** @psalm-pure */
|
|
function foo(): void {
|
|
die;
|
|
}
|
|
',
|
|
],
|
|
'dieFunctionWithIntegerArgumentIsPure' => [
|
|
'<?php
|
|
/** @psalm-pure */
|
|
function foo(): void {
|
|
die(0);
|
|
}
|
|
',
|
|
],
|
|
'allowPureToString' => [
|
|
'<?php
|
|
class A {
|
|
/** @psalm-pure */
|
|
public function __toString() {
|
|
return "bar";
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
function foo(string $s, A $a) : string {
|
|
if ($a == $s) {}
|
|
return $s;
|
|
}',
|
|
],
|
|
'exceptionGetMessage' => [
|
|
'<?php
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
function getMessage(Throwable $e): string {
|
|
return $e->getMessage();
|
|
}
|
|
|
|
echo getMessage(new Exception("test"));'
|
|
],
|
|
'exceptionGetCode' => [
|
|
'<?php
|
|
/**
|
|
* @psalm-pure
|
|
*
|
|
* @return int|string https://www.php.net/manual/en/throwable.getcode.php
|
|
*/
|
|
function getCode(Throwable $e) {
|
|
return $e->getCode();
|
|
}
|
|
|
|
echo getCode(new Exception("test"));'
|
|
],
|
|
'exceptionGetFile' => [
|
|
'<?php
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
function getFile(Throwable $e): string {
|
|
return $e->getFile();
|
|
}
|
|
|
|
echo getFile(new Exception("test"));'
|
|
],
|
|
'exceptionGetLine' => [
|
|
'<?php
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
function getLine(Throwable $e): int {
|
|
return $e->getLine();
|
|
}
|
|
|
|
echo getLine(new Exception("test"));'
|
|
],
|
|
'exceptionGetTrace' => [
|
|
'<?php
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
function getTrace(Throwable $e): array {
|
|
return $e->getTrace();
|
|
}
|
|
|
|
echo count(getTrace(new Exception("test")));'
|
|
],
|
|
'exceptionGetPrevious' => [
|
|
'<?php
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
function getPrevious(Throwable $e): ?Throwable {
|
|
return $e->getPrevious();
|
|
}
|
|
|
|
echo gettype(getPrevious(new Exception("test")));'
|
|
],
|
|
'exceptionGetTraceAsString' => [
|
|
'<?php
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
function getTraceAsString(Throwable $e): string {
|
|
return $e->getTraceAsString();
|
|
}
|
|
|
|
echo getTraceAsString(new Exception("test"));'
|
|
],
|
|
'callingMethodInThrowStillPure' => [
|
|
'<?php
|
|
final class MyException extends \Exception {
|
|
public static function hello(): self
|
|
{
|
|
return new self();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
function sumExpectedToNotBlowPowerFuse(int $first, int $second): int {
|
|
$sum = $first + $second;
|
|
if ($sum > 9000) {
|
|
throw MyException::hello();
|
|
}
|
|
if ($sum > 90001) {
|
|
throw new MyException();
|
|
}
|
|
return $sum;
|
|
}'
|
|
],
|
|
'countMethodCanBePure' => [
|
|
'<?php
|
|
class A implements Countable {
|
|
/** @psalm-mutation-free */
|
|
public function count(): int {
|
|
return 2;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
function thePurest(A $countable): int {
|
|
return count($countable);
|
|
}',
|
|
],
|
|
'mutationFreeAssertion' => [
|
|
'<?php
|
|
class A {
|
|
private ?A $other = null;
|
|
|
|
public function setVar(A $other): void {
|
|
$this->other = $other;
|
|
}
|
|
|
|
/**
|
|
* @psalm-mutation-free
|
|
* @psalm-assert !null $this->other
|
|
*/
|
|
public function checkNotNullNested(): bool {
|
|
if ($this->other === null) {
|
|
throw new RuntimeException("oops");
|
|
}
|
|
|
|
return !!$this->other->other;
|
|
}
|
|
|
|
public function foo() : void {}
|
|
|
|
public function doSomething(): void {
|
|
$this->checkNotNullNested();
|
|
$this->other->foo();
|
|
}
|
|
}'
|
|
],
|
|
'allowPropertyAccessOnImmutableClass' => [
|
|
'<?php
|
|
namespace Bar;
|
|
|
|
/** @psalm-immutable */
|
|
class A {
|
|
public int $a;
|
|
|
|
public function __construct(int $a) {
|
|
$this->a = $a;
|
|
}
|
|
}
|
|
|
|
/** @psalm-pure */
|
|
function filterOdd(A $a) : bool {
|
|
if ($a->a % 2 === 0) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}',
|
|
],
|
|
'allowPureInConstrucctorThis' => [
|
|
'<?php
|
|
class Port {
|
|
private int $portNumber;
|
|
|
|
public function __construct(int $portNumber) {
|
|
if (!$this->isValidPort($portNumber)) {
|
|
throw new Exception();
|
|
}
|
|
|
|
$this->portNumber = $portNumber;
|
|
}
|
|
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
private function isValidPort(int $portNumber): bool {
|
|
return $portNumber >= 1 && $portNumber <= 1000;
|
|
}
|
|
}'
|
|
],
|
|
'pureThroughCallStatic' => [
|
|
'<?php
|
|
|
|
/**
|
|
* @method static self FOO()
|
|
* @method static static BAR()
|
|
* @method static static BAZ()
|
|
*
|
|
* @psalm-immutable
|
|
*/
|
|
class MyEnum
|
|
{
|
|
const FOO = "foo";
|
|
const BAR = "bar";
|
|
const BAZ = "baz";
|
|
|
|
/** @psalm-pure */
|
|
public static function __callStatic(string $name, array $params): static
|
|
{
|
|
throw new BadMethodCallException("not implemented");
|
|
}
|
|
}
|
|
|
|
/** @psalm-pure */
|
|
function gimmeFoo(): MyEnum
|
|
{
|
|
return MyEnum::FOO();
|
|
}',
|
|
],
|
|
'dontCrashWhileCheckingPurityOnCallStaticInATrait' => [
|
|
'<?php
|
|
/**
|
|
* @method static static tt()
|
|
*/
|
|
trait Date {
|
|
public static function __callStatic(string $_method, array $_parameters){
|
|
}
|
|
}
|
|
|
|
class Date2{
|
|
use Date;
|
|
}
|
|
|
|
Date2::tt();
|
|
',
|
|
],
|
|
];
|
|
}
|
|
|
|
/**
|
|
* @return iterable<string,array{string,error_message:string,1?:string[],2?:bool,3?:string}>
|
|
*/
|
|
public function providerInvalidCodeParse(): iterable
|
|
{
|
|
return [
|
|
'impurePropertyAssignment' => [
|
|
'<?php
|
|
namespace Bar;
|
|
|
|
class A {
|
|
public int $a = 5;
|
|
}
|
|
|
|
/** @psalm-pure */
|
|
function filterOdd(int $i, A $a) : ?int {
|
|
$a->a = $i;
|
|
|
|
if ($i % 2 === 0 || $a->a === 2) {
|
|
return $i;
|
|
}
|
|
|
|
return null;
|
|
}',
|
|
'error_message' => 'ImpurePropertyAssignment',
|
|
],
|
|
'impureMethodCall' => [
|
|
'<?php
|
|
namespace Bar;
|
|
|
|
class A {
|
|
public int $a = 5;
|
|
|
|
public function foo() : void {
|
|
$this->a++;
|
|
}
|
|
}
|
|
|
|
/** @psalm-pure */
|
|
function filterOdd(int $i, A $a) : ?int {
|
|
$a->foo();
|
|
|
|
if ($i % 2 === 0 || $a->a === 2) {
|
|
return $i;
|
|
}
|
|
|
|
return null;
|
|
}',
|
|
'error_message' => 'ImpureMethodCall',
|
|
],
|
|
'impureFunctionCall' => [
|
|
'<?php
|
|
namespace Bar;
|
|
|
|
function impure() : ?string {
|
|
/** @var int */
|
|
static $i = 0;
|
|
|
|
++$i;
|
|
|
|
return $i % 2 ? "hello" : null;
|
|
}
|
|
|
|
/** @psalm-pure */
|
|
function filterOdd(array $a) : void {
|
|
impure();
|
|
}',
|
|
'error_message' => 'ImpureFunctionCall',
|
|
],
|
|
'impureConstructorCall' => [
|
|
'<?php
|
|
namespace Bar;
|
|
|
|
class A {
|
|
public int $a = 5;
|
|
}
|
|
|
|
class B {
|
|
public function __construct(A $a) {
|
|
$a->a++;
|
|
}
|
|
}
|
|
|
|
/** @psalm-pure */
|
|
function filterOdd(int $i, A $a) : ?int {
|
|
$b = new B($a);
|
|
|
|
if ($i % 2 === 0 || $a->a === 2) {
|
|
return $i;
|
|
}
|
|
|
|
return null;
|
|
}',
|
|
'error_message' => 'ImpureMethodCall',
|
|
],
|
|
'canCreateObjectWithNoExternalMutations' => [
|
|
'<?php
|
|
class Counter {
|
|
private int $count = 0;
|
|
|
|
public function __construct(int $count) {
|
|
$this->count = $count;
|
|
}
|
|
|
|
public function increment() : void {
|
|
$this->count += rand(0, 5);
|
|
}
|
|
}
|
|
|
|
/** @psalm-pure */
|
|
function makesACounter(int $i) : Counter {
|
|
$c = new Counter($i);
|
|
$c->increment();
|
|
return $c;
|
|
}',
|
|
'error_message' => 'ImpureMethodCall',
|
|
],
|
|
'useOfStaticMakesFunctionImpure' => [
|
|
'<?php
|
|
/** @psalm-pure */
|
|
function addCumulative(int $left) : int {
|
|
/** @var int */
|
|
static $i = 0;
|
|
$i += $left;
|
|
return $left;
|
|
}',
|
|
'error_message' => 'ImpureStaticVariable',
|
|
],
|
|
'preventImpureArrayMapClosure' => [
|
|
'<?php
|
|
/**
|
|
* @psalm-pure
|
|
* @param string[] $arr
|
|
*/
|
|
function foo(array $arr) : array {
|
|
return \array_map(function(string $s) { return $s . rand(0, 1);}, $arr);
|
|
}',
|
|
'error_message' => 'ImpureFunctionCall',
|
|
],
|
|
'sortFunctionImpure' => [
|
|
'<?php
|
|
/**
|
|
* @psalm-pure
|
|
*
|
|
* @param int[] $ar
|
|
*/
|
|
function foo(array $ar): int
|
|
{
|
|
usort($ar, static function (int $a, int $b): int {
|
|
session_start();
|
|
return $a <=> $b;
|
|
});
|
|
|
|
return $ar[0] ?? 0;
|
|
}',
|
|
'error_message' => 'ImpureFunctionCall',
|
|
],
|
|
'printFunctionIsImpure' => [
|
|
'<?php
|
|
/** @psalm-pure */
|
|
function foo(): void {
|
|
print("x");
|
|
}
|
|
',
|
|
'error_message' => 'ImpureFunctionCall',
|
|
],
|
|
'exitFunctionWithNonIntegerArgumentIsImpure' => [
|
|
'<?php
|
|
/** @psalm-pure */
|
|
function foo(): void {
|
|
exit("x");
|
|
}
|
|
',
|
|
'error_message' => 'ImpureFunctionCall',
|
|
],
|
|
'dieFunctionWithNonIntegerArgumentIsImpure' => [
|
|
'<?php
|
|
/** @psalm-pure */
|
|
function foo(): void {
|
|
die("x");
|
|
}
|
|
',
|
|
'error_message' => 'ImpureFunctionCall',
|
|
],
|
|
'impureByRef' => [
|
|
'<?php
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
function foo(string &$a): string {
|
|
$a = "B";
|
|
return $a;
|
|
}',
|
|
'error_message' => 'ImpureByReferenceAssignment'
|
|
],
|
|
'staticPropertyFetch' => [
|
|
'<?php
|
|
final class Number1 {
|
|
public static ?string $zero = null;
|
|
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
public static function zero(): ?string {
|
|
return self::$zero;
|
|
}
|
|
}',
|
|
'error_message' => 'ImpureStaticProperty',
|
|
],
|
|
'staticPropertyAssignment' => [
|
|
'<?php
|
|
final class Number1 {
|
|
/** @var string|null */
|
|
private static $zero;
|
|
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
public static function zero(): string {
|
|
self::$zero = "Zero";
|
|
return "hello";
|
|
}
|
|
}',
|
|
'error_message' => 'ImpureStaticProperty',
|
|
],
|
|
'preventImpureToStringViaComparison' => [
|
|
'<?php
|
|
class A {
|
|
public function __toString() {
|
|
echo "hi";
|
|
return "bar";
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
function foo(string $s, A $a) : string {
|
|
if ($a == $s) {}
|
|
return $s;
|
|
}',
|
|
'error_message' => 'ImpureMethodCall'
|
|
],
|
|
'preventImpureToStringViaConcatenation' => [
|
|
'<?php
|
|
class A {
|
|
public function __toString() {
|
|
echo "hi";
|
|
return "bar";
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
function foo(string $s, A $a) : string {
|
|
return $a . $s;
|
|
}',
|
|
'error_message' => 'ImpureMethodCall'
|
|
],
|
|
'countCanBeImpure' => [
|
|
'<?php
|
|
class A implements Countable {
|
|
public function count(): int {
|
|
echo "oops";
|
|
return 2;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
function thePurest(A $countable): int {
|
|
return count($countable);
|
|
}',
|
|
'error_message' => 'ImpureFunctionCall',
|
|
],
|
|
'propertyFetchIsNotPure' => [
|
|
'<?php
|
|
class A {
|
|
public string $foo = "hello";
|
|
|
|
/** @psalm-pure */
|
|
public static function getFoo(A $a) : string {
|
|
return $a->foo;
|
|
}
|
|
}',
|
|
'error_message' => 'ImpurePropertyFetch',
|
|
],
|
|
'preventPropertyAccessOnMutableClass' => [
|
|
'<?php
|
|
namespace Bar;
|
|
|
|
class A {
|
|
public int $a;
|
|
|
|
public function __construct(int $a) {
|
|
$this->a = $a;
|
|
}
|
|
}
|
|
|
|
/** @psalm-pure */
|
|
function filterOdd(A $a) : bool {
|
|
if ($a->a % 2 === 0) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}',
|
|
'error_message' => 'ImpurePropertyFetch',
|
|
],
|
|
'preventIssetOnMutableClassKnownProperty' => [
|
|
'<?php
|
|
namespace Bar;
|
|
|
|
class A {
|
|
public ?int $a;
|
|
|
|
public function __construct(?int $a) {
|
|
$this->a = $a;
|
|
}
|
|
}
|
|
|
|
/** @psalm-pure */
|
|
function filterOdd(A $a) : bool {
|
|
if (isset($a->a)) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}',
|
|
'error_message' => 'ImpurePropertyFetch',
|
|
],
|
|
'preventIssetOnMutableClassUnknownProperty' => [
|
|
'<?php
|
|
namespace Bar;
|
|
|
|
class A {
|
|
public ?int $a;
|
|
|
|
public function __construct(?int $a) {
|
|
$this->a = $a;
|
|
}
|
|
}
|
|
|
|
/** @psalm-pure */
|
|
function filterOdd(A $a) : bool {
|
|
if (isset($a->b)) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}',
|
|
'error_message' => 'ImpurePropertyFetch',
|
|
],
|
|
'impureThis' => [
|
|
'<?php
|
|
class A {
|
|
public int $a = 5;
|
|
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
public function foo() : self {
|
|
return $this;
|
|
}
|
|
}',
|
|
'error_message' => 'ImpureVariable',
|
|
],
|
|
'iterableIsNotPure' => [
|
|
'<?php
|
|
namespace Test;
|
|
|
|
/**
|
|
* @param iterable<string> $pieces
|
|
*
|
|
* @psalm-pure
|
|
*/
|
|
function foo(iterable $pieces): string
|
|
{
|
|
foreach ($pieces as $piece) {
|
|
return $piece;
|
|
}
|
|
|
|
return "jello";
|
|
}',
|
|
'error_message' => 'ImpureMethodCall',
|
|
],
|
|
'impureThroughCallStatic' => [
|
|
'<?php
|
|
/**
|
|
* @method static void test()
|
|
*/
|
|
final class Impure
|
|
{
|
|
public static function __callStatic(string $name, array $arguments)
|
|
{
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
function testImpure(): void
|
|
{
|
|
Impure::test();
|
|
}
|
|
',
|
|
'error_message' => 'ImpureMethodCall',
|
|
],
|
|
];
|
|
}
|
|
}
|