mirror of
https://github.com/danog/psalm.git
synced 2024-12-11 16:59:45 +01:00
1386 lines
50 KiB
PHP
1386 lines
50 KiB
PHP
<?php
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namespace Psalm\Tests;
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use const DIRECTORY_SEPARATOR;
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class SwitchTypeTest extends TestCase
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{
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use Traits\InvalidCodeAnalysisTestTrait;
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use Traits\ValidCodeAnalysisTestTrait;
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/**
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* @return iterable<string,array{string,assertions?:array<string,string>,error_levels?:string[]}>
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*/
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public function providerValidCodeParse(): iterable
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{
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return [
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'getClassConstArg' => [
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'<?php
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class A {
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/**
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* @return void
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*/
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public function fooFoo() {
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}
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}
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class B {
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/**
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* @return void
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*/
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public function barBar() {
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}
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}
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$a = rand(0, 10) ? new A(): new B();
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switch (get_class($a)) {
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case A::class:
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$a->fooFoo();
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break;
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case B::class:
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$a->barBar();
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break;
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}',
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],
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'getClassExteriorArgClassConsts' => [
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'<?php
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/** @return void */
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function foo(Exception $e) {
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switch (get_class($e)) {
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case InvalidArgumentException::class:
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$e->getMessage();
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break;
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case LogicException::class:
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$e->getMessage();
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break;
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}
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}
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',
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],
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'switchGetClassVar' => [
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'<?php
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class A {}
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class B extends A {
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public function foo(): void {}
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}
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function takesA(A $a): void {
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$class = get_class($a);
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switch ($class) {
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case B::class:
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$a->foo();
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break;
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}
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}',
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],
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'getTypeArg' => [
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'<?php
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function testInt(int $var): void {
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}
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function testString(string $var): void {
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}
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$a = rand(0, 10) ? 1 : "two";
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switch (gettype($a)) {
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case "string":
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testString($a);
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break;
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case "integer":
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testInt($a);
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break;
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}',
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],
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'switchTruthy' => [
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'<?php
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class A {
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/**
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* @var ?string
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*/
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public $a = null;
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/**
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* @var ?string
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*/
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public $b = null;
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}
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function f(A $obj): string {
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switch (true) {
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case $obj->a !== null:
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return $obj->a; // definitely not null
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case !is_null($obj->b):
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return $obj->b; // definitely not null
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default:
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throw new \InvalidArgumentException("$obj->a or $obj->b must be set");
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}
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}',
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],
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'switchMoTruthy' => [
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'<?php
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class A {
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/**
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* @var ?string
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*/
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public $a = null;
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/**
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* @var ?string
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*/
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public $b = null;
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}
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function f(A $obj): string {
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switch (true) {
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case $obj->a:
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return $obj->a; // definitely not null
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case $obj->b:
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return $obj->b; // definitely not null
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default:
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throw new \InvalidArgumentException("$obj->a or $obj->b must be set");
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}
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}',
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],
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'switchWithBadBreak' => [
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'<?php
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class A {}
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function foo(): A {
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switch (rand(0,1)) {
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case true:
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return new A;
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break;
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default:
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return new A;
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}
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}',
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],
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'switchCaseExpression' => [
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'<?php
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switch (true) {
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case preg_match("/(d)ata/", "some data in subject string", $matches):
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return $matches[1];
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default:
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throw new RuntimeException("none found");
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}',
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],
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'switchBools' => [
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'<?php
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$x = false;
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$y = false;
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foreach ([1, 2, 3] as $v) {
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switch($v) {
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case 3:
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$y = true;
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break;
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case 2:
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$x = true;
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break;
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default:
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break;
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}
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}',
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'assertions' => [
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'$x' => 'bool',
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'$y' => 'bool',
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],
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],
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'continueIsBreak' => [
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'<?php
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switch(2) {
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case 2:
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echo "two\n";
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continue;
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}',
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],
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'defaultAboveCase' => [
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'<?php
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function foo(string $a) : string {
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switch ($a) {
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case "a":
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return "hello";
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default:
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case "b":
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return "goodbye";
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}
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}',
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],
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'dontResolveTypesBadly' => [
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'<?php
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$a = new A;
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switch (rand(0,1)) {
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case 0:
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case 1:
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$dt = $a->maybeReturnsDT();
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if (!is_null($dt)) {
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$dt = $dt->format(\DateTime::ISO8601);
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}
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break;
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}
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class A {
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public function maybeReturnsDT(): ?\DateTimeInterface {
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return rand(0,1) ? new \DateTime("now") : null;
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}
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}',
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],
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'issetInFallthrough' => [
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'<?php
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function foo() : void {
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switch(rand() % 4) {
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case 0:
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echo "here";
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break;
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case 1:
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$x = rand() % 4;
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case 2:
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if (isset($x) && $x > 2) {
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echo "$x is large";
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}
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break;
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}
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}',
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],
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'switchManyGetClass' => [
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'<?php
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class A {}
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class B extends A {}
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class C extends A {}
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class D extends A {}
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function foo(A $a) : void {
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switch(get_class($a)) {
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case B::class:
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case C::class:
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case D::class:
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echo "goodbye";
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}
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}',
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],
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'switchManyStrings' => [
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'<?php
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function foo(string $s) : void {
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switch($s) {
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case "a":
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case "b":
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case "c":
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echo "goodbye";
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}
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}',
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],
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'allSwitchesMet' => [
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'<?php
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$a = rand(0, 1) ? "a" : "b";
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switch ($a) {
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case "a":
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$foo = "hello";
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break;
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case "b":
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$foo = "goodbye";
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break;
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}
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echo $foo;',
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],
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'impossibleCaseDefaultWithThrow' => [
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'<?php
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$a = rand(0, 1) ? "a" : "b";
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switch ($a) {
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case "a":
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break;
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case "b":
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break;
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default:
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throw new \Exception("should never happen");
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}',
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],
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'switchOnUnknownInts' => [
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'<?php
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function foo(int $a, int $b, int $c) : void {
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switch ($a) {
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case $b:
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break;
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case $c:
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break;
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}
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}',
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],
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'switchNullable1' => [
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'<?php
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function foo(?string $s) : void {
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switch ($s) {
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case "hello":
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case "goodbye":
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echo "cool";
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break;
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case "hello again":
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echo "cool";
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break;
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}
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}',
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],
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'switchNullable2' => [
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'<?php
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function foo(?string $s) : void {
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switch ($s) {
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case "hello":
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echo "cool";
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case "goodbye":
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echo "cooler";
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break;
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case "hello again":
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echo "cool";
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break;
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}
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}',
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],
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'switchNullable3' => [
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'<?php
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function foo(?string $s) : void {
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switch ($s) {
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case "hello":
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echo "cool";
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break;
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case "goodbye":
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echo "cool";
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break;
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case "hello again":
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echo "cool";
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break;
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}
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}',
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],
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'switchNullable4' => [
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'<?php
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function foo(?string $s, string $a, string $b) : void {
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switch ($s) {
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case $a:
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case $b:
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break;
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}
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}',
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],
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'removeChangedVarsFromReasonableClauses' => [
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'<?php
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function r() : bool {
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return (bool)rand(0, 1);
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}
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function foo(string $s) : void {
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if (($s === "a" || $s === "b")
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&& ($s === "a" || r())
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&& ($s === "b" || r())
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&& (r() || r())
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) {
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// do something
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} else {
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return;
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}
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switch ($s) {
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case "a":
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break;
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case "b":
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break;
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}
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}',
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],
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'preventBadClausesFromBleeding' => [
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'<?php
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function foo (string $s) : void {
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if ($s === "a" && rand(0, 1)) {
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} elseif ($s === "b" && rand(0, 1)) {
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} else {
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return;
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}
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switch ($s) {
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case "a":
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echo "hello";
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break;
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case "b":
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echo "goodbye";
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break;
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}
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}',
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],
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'alwaysReturns' => [
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'<?php
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/**
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* @param "a"|"b" $s
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*/
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function foo(string $s) : string {
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switch ($s) {
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case "a":
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return "hello";
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case "b":
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return "goodbye";
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}
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}',
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],
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'switchVarConditionalAssignment' => [
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'<?php
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switch (rand(0, 4)) {
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case 0:
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$b = 2;
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if (rand(0, 1)) {
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$a = false;
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break;
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}
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default:
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$a = true;
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$b = 1;
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}',
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'assertions' => [
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'$a' => 'bool',
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'$b' => 'int',
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],
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],
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'switchVarConditionalReAssignment' => [
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'<?php
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$a = false;
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switch (rand(0, 4)) {
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case 0:
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$b = 1;
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if (rand(0, 1)) {
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$a = false;
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break;
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}
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default:
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$a = true;
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}',
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'assertions' => [
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'$a' => 'bool',
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],
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],
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'moreThan30Cases' => [
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'<?php
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function f(string $a) : void {
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switch ($a) {
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case "a":
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case "b":
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case "c":
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case "d":
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case "e":
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case "f":
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case "g":
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case "h":
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case "i":
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case "j":
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case "k":
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case "l":
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case "m":
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case "n":
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case "o":
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case "p":
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case "q":
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case "r":
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case "s":
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case "t":
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case "u":
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case "v":
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case "w":
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case "x":
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case "y":
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case "z":
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case "A":
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case "B":
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case "C":
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case "D":
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case "E":
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return;
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}
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}',
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],
|
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'anotherLongSwitch' => [
|
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'<?php
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/**
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* @param ?string $fq_const_name
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* @param string $const_name
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* @param array<string, bool> $predefined_constants
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*
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* @return string|null
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*/
|
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function getGlobalConstType(
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?string $fq_const_name,
|
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string $const_name,
|
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array $predefined_constants
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) {
|
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if ($const_name === "STDERR"
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|| $const_name === "STDOUT"
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|| $const_name === "STDIN"
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) {
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return "hello";
|
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}
|
|
|
|
if (isset($predefined_constants[$fq_const_name])
|
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|| isset($predefined_constants[$const_name])
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) {
|
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switch ($const_name) {
|
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case "PHP_MAJOR_VERSION":
|
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case "PHP_ZTS":
|
|
return "int";
|
|
|
|
case "PHP_FLOAT_EPSILON":
|
|
case "PHP_FLOAT_MAX":
|
|
case "PHP_FLOAT_MIN":
|
|
return "float";
|
|
}
|
|
|
|
if ($fq_const_name && isset($predefined_constants[$fq_const_name])) {
|
|
return "mixed";
|
|
}
|
|
|
|
return "hello";
|
|
}
|
|
|
|
return null;
|
|
}'
|
|
],
|
|
'evenLongerSwitch' => [
|
|
'<?php
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|
function foo(string $f) : string {
|
|
switch ($f) {
|
|
case "str1";
|
|
return "foo1";
|
|
case "str2";
|
|
return "foo2";
|
|
case "str3";
|
|
return "foo3";
|
|
case "str4";
|
|
return "foo4";
|
|
case "str5";
|
|
return "foo5";
|
|
case "str6";
|
|
return "foo6";
|
|
case "str7";
|
|
return "foo7";
|
|
case "str8";
|
|
return "foo8";
|
|
case "str9";
|
|
return "foo9";
|
|
case "str10";
|
|
return "foo10";
|
|
case "str11";
|
|
return "foo11";
|
|
case "str12";
|
|
return "foo12";
|
|
case "str13";
|
|
return "foo13";
|
|
case "str14";
|
|
return "foo14";
|
|
case "str15";
|
|
return "foo15";
|
|
case "str16";
|
|
return "foo16";
|
|
case "str17";
|
|
return "foo17";
|
|
case "str18";
|
|
return "foo18";
|
|
case "str19";
|
|
return "foo19";
|
|
case "str20";
|
|
return "foo20";
|
|
case "str21";
|
|
return "foo21";
|
|
case "str22";
|
|
return "foo22";
|
|
case "str23";
|
|
return "foo23";
|
|
case "str24";
|
|
return "foo24";
|
|
case "str25";
|
|
return "foo25";
|
|
case "str26";
|
|
return "foo26";
|
|
case "str27";
|
|
return "foo27";
|
|
case "str28";
|
|
return "foo28";
|
|
case "str29";
|
|
return "foo29";
|
|
case "str30";
|
|
return "foo30";
|
|
case "str31";
|
|
return "foo31";
|
|
case "str32";
|
|
return "foo32";
|
|
case "str33";
|
|
return "foo33";
|
|
case "str34";
|
|
return "foo34";
|
|
case "str35";
|
|
return "foo35";
|
|
case "str36";
|
|
return "foo36";
|
|
case "str37";
|
|
return "foo37";
|
|
case "str38";
|
|
return "foo38";
|
|
case "str39";
|
|
return "foo39";
|
|
case "str40";
|
|
return "foo40";
|
|
case "str41";
|
|
return "foo41";
|
|
case "str42";
|
|
return "foo42";
|
|
case "str43";
|
|
return "foo43";
|
|
case "str44";
|
|
return "foo44";
|
|
case "str45";
|
|
return "foo45";
|
|
case "str46";
|
|
return "foo46";
|
|
case "str47";
|
|
return "foo47";
|
|
case "str48";
|
|
return "foo48";
|
|
case "str49";
|
|
return "foo49";
|
|
case "str50";
|
|
return "foo50";
|
|
case "str51";
|
|
return "foo51";
|
|
case "str52";
|
|
return "foo52";
|
|
case "str53";
|
|
return "foo53";
|
|
case "str54";
|
|
return "foo54";
|
|
case "str55";
|
|
return "foo55";
|
|
case "str56";
|
|
return "foo56";
|
|
case "str57";
|
|
return "foo57";
|
|
case "str58";
|
|
return "foo58";
|
|
case "str59";
|
|
return "foo59";
|
|
case "str60";
|
|
return "foo60";
|
|
case "str61";
|
|
return "foo61";
|
|
case "str62";
|
|
return "foo62";
|
|
case "str63";
|
|
return "foo63";
|
|
case "str64";
|
|
return "foo64";
|
|
case "str65";
|
|
return "foo65";
|
|
case "str66";
|
|
return "foo66";
|
|
case "str67";
|
|
return "foo67";
|
|
case "str68";
|
|
return "foo68";
|
|
case "str70";
|
|
return "foo70";
|
|
case "str71";
|
|
return "foo71";
|
|
case "str72";
|
|
return "foo72";
|
|
case "str73";
|
|
return "foo73";
|
|
case "str74";
|
|
return "foo74";
|
|
case "str75";
|
|
return "foo75";
|
|
case "str76";
|
|
return "foo76";
|
|
case "str77";
|
|
return "foo77";
|
|
case "str78";
|
|
return "foo78";
|
|
case "str79";
|
|
return "foo79";
|
|
case "str80";
|
|
return "foo80";
|
|
case "str81";
|
|
return "foo81";
|
|
case "str82";
|
|
return "foo82";
|
|
case "str83";
|
|
return "foo83";
|
|
case "str84";
|
|
return "foo84";
|
|
case "str85";
|
|
return "foo85";
|
|
case "str86";
|
|
return "foo86";
|
|
case "str87";
|
|
return "foo87";
|
|
case "str88";
|
|
return "foo88";
|
|
case "str89";
|
|
return "foo89";
|
|
case "str90";
|
|
return "foo90";
|
|
case "str91";
|
|
return "foo91";
|
|
case "str92";
|
|
return "foo92";
|
|
case "str93";
|
|
return "foo93";
|
|
case "str94";
|
|
return "foo94";
|
|
case "str95";
|
|
return "foo95";
|
|
case "str96";
|
|
return "foo96";
|
|
case "str97";
|
|
return "foo97";
|
|
case "str98";
|
|
return "foo98";
|
|
case "str99";
|
|
return "foo99";
|
|
case "str100";
|
|
return "foo100";
|
|
case "str101";
|
|
return "foo101";
|
|
case "str102";
|
|
return "foo102";
|
|
case "str103";
|
|
return "foo103";
|
|
case "str104";
|
|
return "foo104";
|
|
case "str105";
|
|
return "foo105";
|
|
case "str106";
|
|
return "foo106";
|
|
case "str107";
|
|
return "foo107";
|
|
case "str108";
|
|
return "foo108";
|
|
case "str109";
|
|
return "foo109";
|
|
case "str110";
|
|
return "foo110";
|
|
case "str111";
|
|
return "foo111";
|
|
case "str112";
|
|
return "foo112";
|
|
case "str113";
|
|
return "foo113";
|
|
case "str114";
|
|
return "foo114";
|
|
case "str115";
|
|
return "foo115";
|
|
case "str116";
|
|
return "foo116";
|
|
case "str117";
|
|
return "foo117";
|
|
case "str118";
|
|
return "foo118";
|
|
case "str119";
|
|
return "foo119";
|
|
case "str120";
|
|
return "foo120";
|
|
case "str121";
|
|
return "foo121";
|
|
case "str122";
|
|
return "foo122";
|
|
case "str123";
|
|
return "foo123";
|
|
case "str124";
|
|
return "foo124";
|
|
case "str125";
|
|
return "foo125";
|
|
case "str126";
|
|
return "foo126";
|
|
case "str127";
|
|
return "foo127";
|
|
case "str128";
|
|
return "foo128";
|
|
case "str129";
|
|
return "foo129";
|
|
case "str130";
|
|
return "foo130";
|
|
case "str131";
|
|
return "foo131";
|
|
case "str132";
|
|
return "foo132";
|
|
case "str133";
|
|
return "foo133";
|
|
case "str134";
|
|
return "foo134";
|
|
case "str135";
|
|
return "foo135";
|
|
case "str136";
|
|
return "foo136";
|
|
case "str137";
|
|
return "foo137";
|
|
case "str138";
|
|
return "foo138";
|
|
case "str139";
|
|
return "foo139";
|
|
case "str140";
|
|
return "foo140";
|
|
case "str141";
|
|
return "foo141";
|
|
case "str142";
|
|
return "foo142";
|
|
case "str143";
|
|
return "foo143";
|
|
case "str144";
|
|
return "foo144";
|
|
case "str145";
|
|
return "foo145";
|
|
case "str146";
|
|
return "foo146";
|
|
case "str147";
|
|
return "foo147";
|
|
case "str148";
|
|
return "foo148";
|
|
case "str149";
|
|
return "foo149";
|
|
default;
|
|
return "foo69";
|
|
}
|
|
}'
|
|
],
|
|
'switchTruthyWithBoolean' => [
|
|
'<?php
|
|
$a = rand(0,1) ? new \DateTime() : null;
|
|
|
|
switch(true) {
|
|
case $a !== null && $a->format("Y") === "2020":
|
|
$a->format("d-m-Y");
|
|
}'
|
|
],
|
|
'evenWorseSwitch' => [
|
|
'<?php
|
|
function foo(string $locale) : int {
|
|
switch ($locale) {
|
|
case "af":
|
|
case "af_ZA":
|
|
case "bn":
|
|
case "bn_BD":
|
|
case "bn_IN":
|
|
case "bg":
|
|
case "bg_BG":
|
|
case "ca":
|
|
case "ca_AD":
|
|
case "ca_ES":
|
|
case "ca_FR":
|
|
case "ca_IT":
|
|
case "da":
|
|
case "da_DK":
|
|
case "de":
|
|
case "de_AT":
|
|
case "de_BE":
|
|
case "de_CH":
|
|
case "de_DE":
|
|
case "de_LI":
|
|
case "de_LU":
|
|
case "el":
|
|
case "el_CY":
|
|
case "el_GR":
|
|
case "en":
|
|
case "en_AG":
|
|
case "en_AU":
|
|
case "en_BW":
|
|
case "en_CA":
|
|
case "en_DK":
|
|
case "en_GB":
|
|
case "en_HK":
|
|
case "en_IE":
|
|
case "en_IN":
|
|
case "en_NG":
|
|
case "en_NZ":
|
|
case "en_PH":
|
|
case "en_SG":
|
|
case "en_US":
|
|
case "en_ZA":
|
|
case "en_ZM":
|
|
case "en_ZW":
|
|
case "es_VE":
|
|
return 3;
|
|
}
|
|
|
|
return 4;
|
|
}'
|
|
],
|
|
'suppressParadox' => [
|
|
'<?php
|
|
/** @psalm-var 1|2|3 $i */
|
|
$i = rand(1, 3);
|
|
|
|
/** @psalm-suppress ParadoxicalCondition */
|
|
switch($i) {
|
|
case 1: break;
|
|
case 2: break;
|
|
case 3: break;
|
|
default:
|
|
echo "bar";
|
|
}'
|
|
],
|
|
'switchGetClassProperty' => [
|
|
'<?php
|
|
class A {}
|
|
class B {}
|
|
|
|
class C {
|
|
/** @var mixed */
|
|
public $a;
|
|
|
|
function foo() : void {
|
|
if (rand(0, 1)) {
|
|
$this->a = new A();
|
|
}
|
|
|
|
/** @psalm-suppress MixedArgument */
|
|
switch (get_class($this->a)) {
|
|
case B::class:
|
|
echo "here";
|
|
}
|
|
}
|
|
}',
|
|
],
|
|
'noCrashOnComplicatedCases' => [
|
|
'<?php
|
|
class A {}
|
|
class B {}
|
|
class C {}
|
|
|
|
/**
|
|
* @psalm-suppress MixedAssignment
|
|
* @psalm-suppress MixedArrayAccess
|
|
*/
|
|
function foo(array $columns) : bool
|
|
{
|
|
foreach ($columns as $c) {
|
|
switch (true) {
|
|
case isset($c["a"]) || $c["b"] || $c["c"]:
|
|
case $c["t"] instanceof A && rand(0, 1):
|
|
case $c["t"] instanceof B && rand(0, 1):
|
|
case $c["t"] instanceof C && rand(0, 1):
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}'
|
|
],
|
|
'alwaysReturnsWithConditionalReturnFirst' => [
|
|
'<?php
|
|
function getRows(string $s) : int {
|
|
if (rand(0, 1)) {
|
|
return 1;
|
|
}
|
|
|
|
switch ($s) {
|
|
case "a":
|
|
return 2;
|
|
default:
|
|
return 1;
|
|
}
|
|
}'
|
|
],
|
|
'loopWithSwitchAlwaysReturns' => [
|
|
'<?php
|
|
function b(): int {
|
|
foreach([1,2] as $i) {
|
|
continue;
|
|
}
|
|
|
|
switch (random_int(1, 10)) {
|
|
case 1:
|
|
return 1;
|
|
default:
|
|
return 2;
|
|
}
|
|
}',
|
|
],
|
|
'noCrashWithComplexMethodCallSwitches' => [
|
|
'<?php
|
|
function fromFoo(): int {
|
|
switch (true) {
|
|
case (rand(0, 1) && rand(0, 2)):
|
|
case (rand(0, 3) && rand(0, 4)):
|
|
case (rand(0, 5) && rand(0, 6)):
|
|
case (rand(0, 7) && rand(0, 8)):
|
|
case (rand(0, 7) && rand(0, 8)):
|
|
case (rand(0, 7) && rand(0, 8)):
|
|
case (rand(0, 7) && rand(0, 8)):
|
|
return 1;
|
|
default:
|
|
return 0;
|
|
}
|
|
}'
|
|
],
|
|
'terminatesAfterContinueInsideWhile' => [
|
|
'<?php
|
|
function foo(): int {
|
|
switch (true) {
|
|
default:
|
|
while (rand(0, 1)) {
|
|
if (rand(0, 1)) {
|
|
continue;
|
|
}
|
|
return 1;
|
|
}
|
|
return 2;
|
|
}
|
|
}'
|
|
],
|
|
'switchDoesNotReturnNever' => [
|
|
'<?php
|
|
function a(int $i): ?bool {
|
|
switch($i) {
|
|
case 1:
|
|
return false;
|
|
default:
|
|
return null;
|
|
}
|
|
}'
|
|
],
|
|
'nonTotalSwitchStillSometimesExits' => [
|
|
'<?php
|
|
function takesAnInt(string $str): ?int{
|
|
switch ($str) {
|
|
case "a":
|
|
return 5;
|
|
|
|
case "b":
|
|
return null;
|
|
}
|
|
|
|
throw new Exception();
|
|
}'
|
|
],
|
|
];
|
|
}
|
|
|
|
/**
|
|
* @return iterable<string,array{string,error_message:string,1?:string[],2?:bool,3?:string}>
|
|
*/
|
|
public function providerInvalidCodeParse(): iterable
|
|
{
|
|
return [
|
|
'switchReturnTypeWithFallthroughAndBreak' => [
|
|
'<?php
|
|
class A {
|
|
/** @return bool */
|
|
public function fooFoo() {
|
|
switch (rand(0,10)) {
|
|
case 1:
|
|
break;
|
|
default:
|
|
return true;
|
|
}
|
|
}
|
|
}',
|
|
'error_message' => 'InvalidNullableReturnType',
|
|
],
|
|
'switchReturnTypeWithFallthroughAndConditionalBreak' => [
|
|
'<?php
|
|
class A {
|
|
/** @return bool */
|
|
public function fooFoo() {
|
|
switch (rand(0,10)) {
|
|
case 1:
|
|
if (rand(0,10) === 5) {
|
|
break;
|
|
}
|
|
default:
|
|
return true;
|
|
}
|
|
}
|
|
}',
|
|
'error_message' => 'InvalidNullableReturnType',
|
|
],
|
|
'switchReturnTypeWithNoDefault' => [
|
|
'<?php
|
|
class A {
|
|
/** @return bool */
|
|
public function fooFoo() {
|
|
switch (rand(0,10)) {
|
|
case 1:
|
|
case 2:
|
|
return true;
|
|
}
|
|
}
|
|
}',
|
|
'error_message' => 'InvalidNullableReturnType',
|
|
],
|
|
'getClassArgWrongClass' => [
|
|
'<?php
|
|
class A {
|
|
/** @return void */
|
|
public function fooFoo() {
|
|
|
|
}
|
|
}
|
|
|
|
class B {
|
|
/** @return void */
|
|
public function barBar() {
|
|
|
|
}
|
|
}
|
|
|
|
$a = rand(0, 10) ? new A(): new B();
|
|
|
|
switch (get_class($a)) {
|
|
case A::class:
|
|
$a->barBar();
|
|
break;
|
|
}',
|
|
'error_message' => 'UndefinedMethod',
|
|
],
|
|
'getClassMissingClass' => [
|
|
'<?php
|
|
class A {}
|
|
class B {}
|
|
|
|
$a = rand(0, 10) ? new A(): new B();
|
|
|
|
switch (get_class($a)) {
|
|
case C::class:
|
|
break;
|
|
}',
|
|
'error_message' => 'UndefinedClass',
|
|
],
|
|
'getTypeNotAType' => [
|
|
'<?php
|
|
$a = rand(0, 10) ? 1 : "two";
|
|
|
|
switch (gettype($a)) {
|
|
case "int":
|
|
break;
|
|
}',
|
|
'error_message' => 'UnevaluatedCode',
|
|
],
|
|
'getTypeArgWrongArgs' => [
|
|
'<?php
|
|
function testInt(int $var): void {
|
|
|
|
}
|
|
|
|
function testString(string $var): void {
|
|
|
|
}
|
|
|
|
$a = rand(0, 10) ? 1 : "two";
|
|
|
|
switch (gettype($a)) {
|
|
case "string":
|
|
testInt($a);
|
|
|
|
case "integer":
|
|
testString($a);
|
|
}',
|
|
'error_message' => 'InvalidScalarArgument',
|
|
],
|
|
'switchBadMethodCallInCase' => [
|
|
'<?php
|
|
function f(string $p): void { }
|
|
|
|
switch (true) {
|
|
case $q = (bool) rand(0,1):
|
|
f($q); // this type problem is not detected
|
|
break;
|
|
}',
|
|
'error_message' => 'InvalidScalarArgument',
|
|
],
|
|
'continueIsNotBreak' => [
|
|
'<?php
|
|
switch(2) {
|
|
case 2:
|
|
echo "two\n";
|
|
continue 2;
|
|
}',
|
|
'error_message' => 'ContinueOutsideLoop',
|
|
],
|
|
'defaultAboveCaseThatBreaks' => [
|
|
'<?php
|
|
function foo(string $a) : string {
|
|
switch ($a) {
|
|
case "a":
|
|
return "hello";
|
|
|
|
default:
|
|
case "b":
|
|
break;
|
|
|
|
case "c":
|
|
return "goodbye";
|
|
}
|
|
}',
|
|
'error_message' => 'InvalidReturnType',
|
|
],
|
|
'SKIPPED-switchManyGetClassWithRepetitionWithProperLineNumber' => [
|
|
'<?php
|
|
class A {}
|
|
class B extends A {}
|
|
class C extends A {}
|
|
class D extends A {}
|
|
|
|
function foo(A $a) : void {
|
|
switch(get_class($a)) {
|
|
case B::class:
|
|
case C::class:
|
|
case B::class:
|
|
case C::class:
|
|
case D::class:
|
|
echo "goodbye";
|
|
}
|
|
}',
|
|
'error_message' => 'RedundantCondition - src' . DIRECTORY_SEPARATOR . 'somefile.php:10',
|
|
'error_levels' => ['ParadoxicalCondition'],
|
|
],
|
|
'repeatedCaseValue' => [
|
|
'<?php
|
|
$a = rand(0, 1);
|
|
switch ($a) {
|
|
case 0:
|
|
break;
|
|
|
|
case 0:
|
|
echo "I never get here";
|
|
}',
|
|
'error_message' => 'ParadoxicalCondition - src' . DIRECTORY_SEPARATOR . 'somefile.php:7',
|
|
],
|
|
'impossibleCaseValue' => [
|
|
'<?php
|
|
$a = rand(0, 1) ? "a" : "b";
|
|
|
|
switch ($a) {
|
|
case "a":
|
|
break;
|
|
|
|
case "b":
|
|
break;
|
|
|
|
case "c":
|
|
echo "impossible";
|
|
}',
|
|
'error_message' => 'TypeDoesNotContainType - src' . DIRECTORY_SEPARATOR . 'somefile.php:11',
|
|
],
|
|
'impossibleCaseDefault' => [
|
|
'<?php
|
|
$a = rand(0, 1) ? "a" : "b";
|
|
|
|
switch ($a) {
|
|
case "a":
|
|
break;
|
|
|
|
case "b":
|
|
break;
|
|
|
|
default:
|
|
echo "impossible";
|
|
}',
|
|
'error_message' => 'ParadoxicalCondition - src' . DIRECTORY_SEPARATOR . 'somefile.php:11',
|
|
],
|
|
'breakWithoutSettingVar' => [
|
|
'<?php
|
|
function foo(int $i) : void {
|
|
switch ($i) {
|
|
case 0:
|
|
if (rand(0, 1)) {
|
|
break;
|
|
}
|
|
|
|
default:
|
|
$a = true;
|
|
}
|
|
|
|
if ($a) {}
|
|
}',
|
|
'error_message' => 'PossiblyUndefinedVariable',
|
|
],
|
|
'getClassExteriorArgStringType' => [
|
|
'<?php
|
|
/** @return void */
|
|
function foo(Exception $e) {
|
|
switch (get_class($e)) {
|
|
case "InvalidArgumentException":
|
|
break;
|
|
}
|
|
}',
|
|
'error_message' => 'TypeDoesNotContainType',
|
|
],
|
|
'paradoxInFunctionCall' => [
|
|
'<?php
|
|
/** @psalm-return 1|2|3 */
|
|
function foo() {
|
|
/** @psalm-var 1|2|3 $bar */
|
|
$bar = rand(1, 3);
|
|
return $bar;
|
|
}
|
|
|
|
switch(foo()) {
|
|
case 1: break;
|
|
case 2: break;
|
|
case 3: break;
|
|
default:
|
|
echo "bar";
|
|
}',
|
|
'error_message' => 'ParadoxicalCondition'
|
|
],
|
|
'loopWithSwitchDoesntReturnFirstCase' => [
|
|
'<?php
|
|
function b(): int {
|
|
switch (random_int(1, 10)) {
|
|
case 1:
|
|
foreach([1,2] as $i) {
|
|
continue;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
return 2;
|
|
}
|
|
}',
|
|
'error_message' => 'InvalidReturnType'
|
|
],
|
|
'clearDependentTypeWhenAssigning' => [
|
|
'<?php
|
|
class A {}
|
|
|
|
class AChild extends A {
|
|
public function bar() : void {}
|
|
}
|
|
|
|
class B {}
|
|
|
|
function foo(A $a) : void {
|
|
$a_class = get_class($a);
|
|
|
|
$a = new B();
|
|
|
|
switch ($a_class) {
|
|
case AChild::class:
|
|
$a->bar();
|
|
}
|
|
}',
|
|
'error_message' => 'UndefinedMethod'
|
|
],
|
|
];
|
|
}
|
|
}
|