mirror of
https://github.com/danog/psalm.git
synced 2024-12-13 09:47:29 +01:00
543 lines
18 KiB
PHP
543 lines
18 KiB
PHP
<?php
|
|
namespace Psalm\Tests;
|
|
|
|
use const DIRECTORY_SEPARATOR;
|
|
|
|
class PureAnnotationTest extends TestCase
|
|
{
|
|
use Traits\InvalidCodeAnalysisTestTrait;
|
|
use Traits\ValidCodeAnalysisTestTrait;
|
|
|
|
/**
|
|
* @return iterable<string,array{string,assertions?:array<string,string>,error_levels?:string[]}>
|
|
*/
|
|
public function providerValidCodeParse()
|
|
{
|
|
return [
|
|
'simplePureFunction' => [
|
|
'<?php
|
|
namespace Bar;
|
|
|
|
class A {
|
|
public int $a = 5;
|
|
}
|
|
|
|
/** @psalm-pure */
|
|
function filterOdd(int $i, A $a) : ?int {
|
|
if ($i % 2 === 0 || $a->a === 2) {
|
|
return $i;
|
|
}
|
|
|
|
$a = new A();
|
|
|
|
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);
|
|
}
|
|
}',
|
|
],
|
|
'sortFunction' => [
|
|
'<?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;
|
|
}',
|
|
],
|
|
'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;
|
|
}'
|
|
],
|
|
];
|
|
}
|
|
|
|
/**
|
|
* @return iterable<string,array{string,error_message:string,2?:string[],3?:bool,4?:string}>
|
|
*/
|
|
public function providerInvalidCodeParse()
|
|
{
|
|
return [
|
|
'impurePropertyAssignment' => [
|
|
'<?php
|
|
namespace Bar;
|
|
|
|
class A {
|
|
public int $a = 5;
|
|
}
|
|
|
|
/** @psalm-pure */
|
|
function filterOdd(int $i, A $a) : ?int {
|
|
$a->a++;
|
|
|
|
if ($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 $ar[0] ?? 0;
|
|
}',
|
|
'error_message' => 'ImpureFunctionCall',
|
|
],
|
|
'impureByRef' => [
|
|
'<?php
|
|
/**
|
|
* @psalm-pure
|
|
*/
|
|
function foo(string &$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'
|
|
],
|
|
];
|
|
}
|
|
}
|