mirror of
https://github.com/danog/psalm.git
synced 2024-11-30 04:39:00 +01:00
1673 lines
39 KiB
PHP
1673 lines
39 KiB
PHP
<?php
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namespace Psalm\Tests;
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use PhpParser\ParserFactory;
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use PHPUnit_Framework_TestCase;
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use Psalm\Checker\FileChecker;
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use Psalm\Config;
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use Psalm\Context;
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class TypeTest extends PHPUnit_Framework_TestCase
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{
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protected static $parser;
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public static function setUpBeforeClass()
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{
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self::$parser = (new ParserFactory)->create(ParserFactory::PREFER_PHP7);
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$config = Config::getInstance();
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$config->throw_exception = true;
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}
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public function setUp()
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{
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FileChecker::clearCache();
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}
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/**
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* @expectedException \Psalm\Exception\CodeException
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*/
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public function testNullableMethodCall()
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{
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$stmts = self::$parser->parse('<?php
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class A {
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public function foo() {}
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}
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class B {
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public function bar(A $a = null) {
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$a->foo();
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}
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}');
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$file_checker = new FileChecker('somefile.php', $stmts);
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$file_checker->check();
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}
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public function testNullableMethodWithTernaryGuard()
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{
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$stmts = self::$parser->parse('<?php
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class A {
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/** @return void */
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public function foo() {}
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}
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class B {
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/** @return void */
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public function bar(A $a = null) {
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$b = $a ? $a->foo() : null;
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}
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}');
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$file_checker = new FileChecker('somefile.php', $stmts);
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$file_checker->check();
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}
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public function testNullableMethodWithTernaryIfNullGuard()
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{
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$stmts = self::$parser->parse('<?php
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class A {
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/** @return void */
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public function foo() {}
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}
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class B {
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/** @return void */
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public function bar(A $a = null) {
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$b = $a === null ? null : $a->foo();
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}
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}');
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$file_checker = new FileChecker('somefile.php', $stmts);
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$file_checker->check();
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}
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public function testNullableMethodWithTernaryEmptyGuard()
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{
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$stmts = self::$parser->parse('<?php
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class A {
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/** @return void */
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public function foo() {}
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}
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class B {
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/** @return void */
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public function bar(A $a = null) {
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$b = empty($a) ? null : $a->foo();
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}
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}');
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$file_checker = new FileChecker('somefile.php', $stmts);
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$file_checker->check();
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}
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public function testNullableMethodWithTernaryIsNullGuard()
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{
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$stmts = self::$parser->parse('<?php
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class A {
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/** @return void */
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public function foo() {}
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}
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class B {
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/** @return void */
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public function bar(A $a = null) {
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$b = is_null($a) ? null : $a->foo();
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}
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}');
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$file_checker = new FileChecker('somefile.php', $stmts);
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$file_checker->check();
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}
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public function testNullableMethodWithIfGuard()
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{
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$stmts = self::$parser->parse('<?php
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class A {
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/** @return void */
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public function foo() {}
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}
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class B {
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/** @return void */
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public function bar(A $a = null) {
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if ($a) {
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$a->foo();
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}
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}
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}');
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$file_checker = new FileChecker('somefile.php', $stmts);
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$file_checker->check();
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}
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/**
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* @expectedException \Psalm\Exception\CodeException
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*/
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public function testNullableMethodCallWithThis()
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{
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$stmts = self::$parser->parse('<?php
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class A {
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/** @return void */
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public function foo() {}
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}
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class B {
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/** @return void */
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public function bar(A $a = null) {
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$this->a = $a;
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$this->a->foo();
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}
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}');
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$file_checker = new FileChecker('somefile.php', $stmts);
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$file_checker->check();
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}
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public function testNullableMethodWithTernaryGuardWithThis()
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{
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$stmts = self::$parser->parse('<?php
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class A {
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/** @return void */
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public function foo() {}
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}
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class B {
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/** @var A|null */
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public $a;
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/** @return void */
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public function bar(A $a = null) {
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$this->a = $a;
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$b = $this->a ? $this->a->foo() : null;
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}
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}');
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$file_checker = new FileChecker('somefile.php', $stmts);
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$file_checker->check();
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}
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public function testNullableMethodWithTernaryIfNullGuardWithThis()
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{
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$stmts = self::$parser->parse('<?php
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class A {
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/** @return void */
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public function foo() {}
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}
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class B {
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/** @var A|null */
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public $a;
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/** @return void */
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public function bar(A $a = null) {
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$this->a = $a;
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$b = $this->a === null ? null : $this->a->foo();
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}
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}');
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$file_checker = new FileChecker('somefile.php', $stmts);
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$file_checker->check();
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}
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public function testNullableMethodWithIfGuardWithThis()
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{
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$stmts = self::$parser->parse('<?php
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class A {
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/** @return void */
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public function foo() {}
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}
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class B {
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/** @var A|null */
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public $a;
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/** @return void */
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public function bar(A $a = null) {
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$this->a = $a;
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if ($this->a) {
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$this->a->foo();
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}
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}
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}');
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$file_checker = new FileChecker('somefile.php', $stmts);
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$file_checker->check();
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}
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/**
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* @expectedException \Psalm\Exception\CodeException
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*/
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public function testNullableMethodWithWrongIfGuard()
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{
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$stmts = self::$parser->parse('<?php
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class One {
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/** @return void */
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public function foo() {}
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}
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class Two {
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/** @return void */
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public function foo() {}
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}
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class B {
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/** @return void */
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public function bar(One $one = null, Two $two = null) {
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if ($one) {
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$two->foo();
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}
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}
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}');
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$file_checker = new FileChecker('somefile.php', $stmts);
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$file_checker->check();
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}
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public function testNullableMethodWithExceptionThrown()
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{
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$stmts = self::$parser->parse('<?php
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class One {
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/** @return void */
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public function foo() {}
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}
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class B {
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/** @return void */
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public function bar(One $one = null) {
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if (!$one) {
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throw new Exception();
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}
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$one->foo();
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}
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}');
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$file_checker = new FileChecker('somefile.php', $stmts);
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$file_checker->check();
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}
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public function testNullableMethodWithRedefinitionAndElse()
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{
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$stmts = self::$parser->parse('<?php
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class One {
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/** @var int|null */
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public $two;
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/** @return void */
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public function foo() {}
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}
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class B {
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/** @return void */
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public function bar(One $one = null) {
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if (!$one) {
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$one = new One();
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}
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else {
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$one->two = 3;
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}
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$one->foo();
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}
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}');
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$file_checker = new FileChecker('somefile.php', $stmts);
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$file_checker->check();
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}
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/**
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* @expectedException \Psalm\Exception\CodeException
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*/
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public function testNullableMethodWithWrongBooleanIfGuard()
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{
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$stmts = self::$parser->parse('<?php
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class One {
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/** @return void */
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public function foo() {}
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}
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class Two {
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/** @return void */
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public function foo() {}
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}
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class B {
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/** @return void */
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public function bar(One $one = null, Two $two = null) {
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if ($one || $two) {
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$two->foo();
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}
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}
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}');
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$file_checker = new FileChecker('somefile.php', $stmts);
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$file_checker->check();
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}
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public function testNullableMethodWithBooleanIfGuard()
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{
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$stmts = self::$parser->parse('<?php
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class One {
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/** @return void */
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public function foo() {}
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}
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class Two {
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/** @return void */
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public function foo() {}
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}
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class B {
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/** @return void */
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public function bar(One $one = null, Two $two = null) {
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if ($one && $two) {
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$two->foo();
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}
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}
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}');
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$file_checker = new FileChecker('somefile.php', $stmts);
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$file_checker->check();
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}
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public function testNullableMethodWithNonNullBooleanIfGuard()
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{
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$stmts = self::$parser->parse('<?php
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class One {
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/** @return void */
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public function foo() {}
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}
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class Two {
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/** @return void */
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public function foo() {}
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}
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class B {
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/** @return void */
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public function bar(One $one = null, Two $two = null) {
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if ($one !== null && $two) {
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$one->foo();
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}
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}
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}');
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$file_checker = new FileChecker('somefile.php', $stmts);
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$file_checker->check();
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}
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public function testNullableMethodWithNonNullBooleanIfGuardAndBooleanAnd()
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{
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$stmts = self::$parser->parse('<?php
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class One {
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/** @return void */
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public function foo() {}
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}
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class Two {
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/** @return void */
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public function foo() {}
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}
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class B {
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/** @return void */
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public function bar(One $one = null, Two $two = null) {
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if ($one !== null && ($two || 1 + 1 === 3)) {
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$one->foo();
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}
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}
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}');
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$file_checker = new FileChecker('somefile.php', $stmts);
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$file_checker->check();
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}
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public function testNullableMethodInConditionWithIfGuardBefore()
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{
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$stmts = self::$parser->parse('<?php
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class One {
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/** @var string */
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public $a;
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/** @return void */
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public function foo() {}
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}
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class Two {
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/** @return void */
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public function foo() {}
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}
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class B {
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/** @return void */
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public function bar(One $one = null, Two $two = null) {
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if ($one === null) {
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return;
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}
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if (!$one->a && $one->foo()) {
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// do something
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}
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}
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}');
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$file_checker = new FileChecker('somefile.php', $stmts);
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$file_checker->check();
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}
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/**
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* @expectedException \Psalm\Exception\CodeException
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*/
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public function testNullableMethodWithWrongIfGuardBefore()
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{
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$stmts = self::$parser->parse('<?php
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class One {
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/** @return void */
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public function foo() {}
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}
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class Two {
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/** @return void */
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public function foo() {}
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}
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class B {
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/** @return void */
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public function bar(One $one = null, Two $two = null) {
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if ($two === null) {
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return;
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}
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$one->foo();
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}
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}');
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$file_checker = new FileChecker('somefile.php', $stmts);
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$file_checker->check();
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}
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public function testNullableMethodWithBooleanIfGuardBefore()
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{
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$stmts = self::$parser->parse('<?php
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class One {
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/** @return void */
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public function foo() {}
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}
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class Two {
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/** @return void */
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public function foo() {}
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}
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class B {
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/** @return void */
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public function bar(One $one = null, Two $two = null) {
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if ($one === null || $two === null) {
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return;
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}
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$one->foo();
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}
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}');
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$file_checker = new FileChecker('somefile.php', $stmts);
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$file_checker->check();
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}
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/**
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* @expectedException \Psalm\Exception\CodeException
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*/
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public function testNullableMethodWithWrongBooleanIfGuardBefore()
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{
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$stmts = self::$parser->parse('<?php
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class One {
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/** @return void */
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public function foo() {}
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}
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class Two {
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/** @return void */
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public function foo() {}
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}
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class B {
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/** @return void */
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public function bar(One $one = null, Two $two = null) {
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if ($one === null && $two === null) {
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return;
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}
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$one->foo();
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}
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}');
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$file_checker = new FileChecker('somefile.php', $stmts);
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$file_checker->check();
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}
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public function testNullableMethodWithGuardedRedefinition()
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{
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$stmts = self::$parser->parse('<?php
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class One {
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/** @return void */
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public function foo() {}
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}
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class B {
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/** @return void */
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public function bar(One $one = null) {
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if ($one === null) {
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$one = new One();
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}
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$one->foo();
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}
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}');
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$file_checker = new FileChecker('somefile.php', $stmts);
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$file_checker->check();
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}
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public function testNullableMethodWithGuardedRedefinitionInElse()
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{
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$stmts = self::$parser->parse('<?php
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class One {
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/** @return void */
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public function foo() {}
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}
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class B {
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/** @return void */
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public function bar(One $one = null) {
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if ($one) {
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// do nothing
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}
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else {
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$one = new One();
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}
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$one->foo();
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}
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}');
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$file_checker = new FileChecker('somefile.php', $stmts);
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$file_checker->check();
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}
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|
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/**
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* @expectedException \Psalm\Exception\CodeException
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*/
|
|
public function testMethodWithMeaninglessCheck()
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|
{
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$stmts = self::$parser->parse('<?php
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class One {
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/** @return void */
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public function foo() {}
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}
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class B {
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/** @return void */
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public function bar(One $one) {
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if (!$one) {
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// do nothing
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}
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$one->foo();
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}
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}');
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|
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$file_checker = new FileChecker('somefile.php', $stmts);
|
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$file_checker->check();
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}
|
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|
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/**
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* @expectedException \Psalm\Exception\CodeException
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*/
|
|
public function testNullableMethodWithGuardedNestedIncompleteRedefinition()
|
|
{
|
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$stmts = self::$parser->parse('<?php
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class One {
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/** @return void */
|
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public function foo() {}
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}
|
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|
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class Two {
|
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/** @return void */
|
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public function foo() {}
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}
|
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|
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class B {
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/** @return void */
|
|
public function bar(One $one = null, Two $two = null) {
|
|
$a = 4;
|
|
|
|
if ($one === null) {
|
|
if ($a === 4) {
|
|
$one = new One();
|
|
}
|
|
}
|
|
|
|
$one->foo();
|
|
}
|
|
}');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testNullableMethodWithGuardedNestedRedefinition()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class One {
|
|
/** @return void */
|
|
public function foo() {}
|
|
}
|
|
|
|
class Two {
|
|
/** @return void */
|
|
public function foo() {}
|
|
}
|
|
|
|
class B {
|
|
/** @return void */
|
|
public function bar(One $one = null) {
|
|
$a = 4;
|
|
|
|
if ($one === null) {
|
|
if ($a === 4) {
|
|
$one = new One();
|
|
}
|
|
else {
|
|
$one = new One();
|
|
}
|
|
}
|
|
|
|
$one->foo();
|
|
}
|
|
}');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testNullableMethodWithGuardedSwitchRedefinition()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class One {
|
|
/** @return void */
|
|
public function foo() {}
|
|
}
|
|
|
|
class B {
|
|
/** @return void */
|
|
public function bar(One $one = null) {
|
|
$a = 4;
|
|
|
|
if ($one === null) {
|
|
switch ($a) {
|
|
case 4:
|
|
$one = new One();
|
|
break;
|
|
|
|
default:
|
|
$one = new One();
|
|
break;
|
|
}
|
|
}
|
|
|
|
$one->foo();
|
|
}
|
|
}');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
/**
|
|
* @expectedException \Psalm\Exception\CodeException
|
|
*/
|
|
public function testNullableMethodWithGuardedSwitchRedefinitionNoDefault()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class One {
|
|
/** @return void */
|
|
public function foo() {}
|
|
}
|
|
|
|
class B {
|
|
/** @return void */
|
|
public function bar(One $one = null) {
|
|
$a = 4;
|
|
|
|
if ($one === null) {
|
|
switch ($a) {
|
|
case 4:
|
|
$one = new One();
|
|
break;
|
|
}
|
|
}
|
|
|
|
$one->foo();
|
|
}
|
|
}');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
/**
|
|
* @expectedException \Psalm\Exception\CodeException
|
|
*/
|
|
public function testNullableMethodWithGuardedSwitchRedefinitionEmptyDefault()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class One {
|
|
/** @return void */
|
|
public function foo() {}
|
|
}
|
|
|
|
class B {
|
|
/** @return void */
|
|
public function bar(One $one = null) {
|
|
$a = 4;
|
|
|
|
if ($one === null) {
|
|
switch ($a) {
|
|
case 4:
|
|
$one = new One();
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
$one->foo();
|
|
}
|
|
}');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testNullableMethodWithGuardedSwitchRedefinitionDueToException()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class One {
|
|
/** @return void */
|
|
public function foo() {}
|
|
}
|
|
|
|
class B {
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function bar(One $one = null) {
|
|
$a = 4;
|
|
|
|
if ($one === null) {
|
|
switch ($a) {
|
|
case 4:
|
|
$one = new One();
|
|
break;
|
|
|
|
default:
|
|
throw new \Exception("bad");
|
|
}
|
|
}
|
|
|
|
$one->foo();
|
|
}
|
|
}');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testNullableMethodWithGuardedSwitchThatAlwaysReturns()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class One {
|
|
/** @return void */
|
|
public function foo() {}
|
|
}
|
|
|
|
class B {
|
|
/** @return void */
|
|
public function bar(One $one = null) {
|
|
$a = 4;
|
|
|
|
if ($one === null) {
|
|
switch ($a) {
|
|
case 4:
|
|
return;
|
|
|
|
default:
|
|
return;
|
|
}
|
|
}
|
|
|
|
$one->foo();
|
|
}
|
|
}');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testNullableMethodWithGuardedNestedRedefinitionWithReturn()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class One {
|
|
/** @return void */
|
|
public function foo() {}
|
|
}
|
|
|
|
class B {
|
|
/** @return void */
|
|
public function bar(One $one = null) {
|
|
$a = 4;
|
|
|
|
if ($one === null) {
|
|
if ($a === 4) {
|
|
$one = new One();
|
|
return;
|
|
}
|
|
else {
|
|
$one = new One();
|
|
}
|
|
}
|
|
|
|
$one->foo();
|
|
}
|
|
}');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testNullableMethodWithGuardedNestedRedefinitionWithElseReturn()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class One {
|
|
/** @return void */
|
|
public function foo() {}
|
|
}
|
|
|
|
class B {
|
|
/** @return void */
|
|
public function bar(One $one = null) {
|
|
$a = 4;
|
|
|
|
if ($one === null) {
|
|
if ($a === 4) {
|
|
$one = new One();
|
|
}
|
|
else {
|
|
$one = new One();
|
|
return;
|
|
}
|
|
}
|
|
|
|
$one->foo();
|
|
}
|
|
}');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
/**
|
|
* @expectedException \Psalm\Exception\CodeException
|
|
*/
|
|
public function testNullableMethodWithGuardedNestedRedefinitionWithUselessElseReturn()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class One {
|
|
/** @return void */
|
|
public function foo() {}
|
|
}
|
|
|
|
class B {
|
|
/** @return void */
|
|
public function bar(One $one = null) {
|
|
$a = 4;
|
|
|
|
if ($one === null) {
|
|
if ($a === 4) {
|
|
$one = new One();
|
|
}
|
|
else if ($a === 3) {
|
|
// do nothing
|
|
}
|
|
else {
|
|
$one = new One();
|
|
return;
|
|
}
|
|
}
|
|
|
|
$one->foo();
|
|
}
|
|
}');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testNullableMethodWithGuardedNestedRedefinitionWithElseifReturn()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class One {
|
|
/** @return void */
|
|
public function foo() {}
|
|
}
|
|
|
|
class B {
|
|
/** @return void */
|
|
public function bar(One $one = null) {
|
|
$a = 4;
|
|
|
|
if ($one === null) {
|
|
if ($a === 4) {
|
|
$one = new One();
|
|
}
|
|
else if ($a === 3) {
|
|
// do nothing
|
|
return;
|
|
}
|
|
else {
|
|
$one = new One();
|
|
}
|
|
}
|
|
|
|
$one->foo();
|
|
}
|
|
}');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testNullableMethodWithGuardedSwitchBreak()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class One {
|
|
/** @return void */
|
|
public function foo() {}
|
|
}
|
|
|
|
class B {
|
|
/** @return void */
|
|
public function bar(One $one = null) {
|
|
$a = 4;
|
|
|
|
switch ($a) {
|
|
case 4:
|
|
if ($one === null) {
|
|
break;
|
|
}
|
|
|
|
$one->foo();
|
|
break;
|
|
}
|
|
}
|
|
}');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testNullableMethodWithGuardedRedefinitionOnThis()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class One {
|
|
/** @return void */
|
|
public function foo() {}
|
|
}
|
|
|
|
class B {
|
|
/** @var One|null */
|
|
public $one;
|
|
|
|
/** @return void */
|
|
public function bar(One $one = null) {
|
|
$this->one = $one;
|
|
|
|
if ($this->one === null) {
|
|
$this->one = new One();
|
|
}
|
|
|
|
$this->one->foo();
|
|
}
|
|
}');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testArrayUnionTypeAssertion()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
/** @var array|null */
|
|
$ids = (1 + 1 === 2) ? [] : null;
|
|
|
|
if ($ids === null) {
|
|
$ids = [];
|
|
}
|
|
|
|
foreach ($ids as $id) {
|
|
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testArrayUnionTypeAssertionWithIsArray()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
/** @var array|null */
|
|
$ids = (1 + 1 === 2) ? [] : null;
|
|
|
|
if (!is_array($ids)) {
|
|
$ids = [];
|
|
}
|
|
|
|
foreach ($ids as $id) {
|
|
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testVariableReassignment()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class One {
|
|
/** @return void */
|
|
public function foo() {}
|
|
}
|
|
|
|
class Two {
|
|
/** @return void */
|
|
public function bar() {}
|
|
}
|
|
|
|
$one = new One();
|
|
|
|
$one = new Two();
|
|
|
|
$one->bar();
|
|
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testVariableReassignmentInIf()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class One {
|
|
/** @return void */
|
|
public function foo() {}
|
|
}
|
|
|
|
class Two {
|
|
/** @return void */
|
|
public function bar() {}
|
|
}
|
|
|
|
$one = new One();
|
|
|
|
if (1 + 1 === 2) {
|
|
$one = new Two();
|
|
|
|
$one->bar();
|
|
}
|
|
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
/**
|
|
* @expectedException \Psalm\Exception\CodeException
|
|
*/
|
|
public function testVariableReassignmentInIfWithOutsideCall()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class One {
|
|
/** @return void */
|
|
public function foo() {}
|
|
}
|
|
|
|
class Two {
|
|
/** @return void */
|
|
public function bar() {}
|
|
}
|
|
|
|
$one = new One();
|
|
|
|
if (1 + 1 === 2) {
|
|
$one = new Two();
|
|
|
|
$one->bar();
|
|
}
|
|
|
|
$one->bar();
|
|
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testUnionTypeFlow()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class One {
|
|
/** @return void */
|
|
public function foo() {}
|
|
}
|
|
|
|
class Two {
|
|
/** @return void */
|
|
public function bar() {}
|
|
}
|
|
|
|
class Three {
|
|
/** @return void */
|
|
public function baz() {}
|
|
}
|
|
|
|
/** @var One|Two|Three|null */
|
|
$var = null;
|
|
|
|
if ($var instanceof One) {
|
|
$var->foo();
|
|
}
|
|
else {
|
|
if ($var instanceof Two) {
|
|
$var->bar();
|
|
}
|
|
else if ($var) {
|
|
$var->baz();
|
|
}
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testUnionTypeFlowWithThrow()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class One {
|
|
/** @return void */
|
|
public function foo() {}
|
|
}
|
|
|
|
/** @return void */
|
|
function a(One $var = null) {
|
|
if (!$var) {
|
|
throw new \Exception("some exception");
|
|
}
|
|
else {
|
|
$var->foo();
|
|
}
|
|
}
|
|
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testUnionTypeFlowWithElseif()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class One {
|
|
public function foo() {}
|
|
}
|
|
|
|
/** @var One|null */
|
|
$var = null;
|
|
|
|
if (rand(0,100) === 5) {
|
|
|
|
}
|
|
elseif (!$var) {
|
|
|
|
}
|
|
else {
|
|
$var->foo();
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
/**
|
|
* @expectedException \Psalm\Exception\CodeException
|
|
*/
|
|
public function testUnnecessaryInstanceof()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class One {
|
|
public function foo() {}
|
|
}
|
|
|
|
$var = new One();
|
|
|
|
if ($var instanceof One) {
|
|
$var->foo();
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
/**
|
|
* @expectedException \Psalm\Exception\CodeException
|
|
*/
|
|
public function testUnNegatableInstanceof()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class One {
|
|
/** @return void */
|
|
public function foo() {}
|
|
}
|
|
|
|
$var = new One();
|
|
|
|
if ($var instanceof One) {
|
|
$var->foo();
|
|
}
|
|
else {
|
|
// do something
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testTypeAdjustment()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
$var = 0;
|
|
|
|
if (5 + 3 === 8) {
|
|
$var = "hello";
|
|
}
|
|
|
|
echo $var;
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
|
|
$return_stmt = array_pop($stmts);
|
|
|
|
$this->assertSame('int|string', (string) $return_stmt->exprs[0]->inferredType);
|
|
}
|
|
|
|
public function testTypeMixedAdjustment()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
$var = 0;
|
|
|
|
$arr = ["hello"];
|
|
|
|
if (5 + 3 === 8) {
|
|
$var = $arr[0];
|
|
}
|
|
|
|
echo $var;
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
|
|
$return_stmt = array_pop($stmts);
|
|
|
|
$this->assertSame('int|string', (string) $return_stmt->exprs[0]->inferredType);
|
|
}
|
|
|
|
public function testTypeAdjustmentIfNull()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class A {}
|
|
class B {}
|
|
|
|
$var = rand(0,10) > 5 ? new A : null;
|
|
|
|
if ($var === null) {
|
|
$var = new B;
|
|
}
|
|
|
|
echo $var;
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
|
|
$return_stmt = array_pop($stmts);
|
|
|
|
$this->assertSame('A|B', (string) $return_stmt->exprs[0]->inferredType);
|
|
}
|
|
|
|
public function testWhileTrue()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class One {
|
|
/**
|
|
* @return array|false
|
|
*/
|
|
public function foo(){
|
|
return rand(0,100) ? ["hello"] : false;
|
|
}
|
|
|
|
/** @return void */
|
|
public function bar(){
|
|
while ($row = $this->foo()) {
|
|
$row[0] = "bad";
|
|
}
|
|
}
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
/**
|
|
* @expectedException \Psalm\Exception\CodeException
|
|
*/
|
|
public function testWrongParam()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class A {}
|
|
|
|
class B {
|
|
/** @return void */
|
|
public function bar(A $a) {}
|
|
}
|
|
|
|
$b = new B();
|
|
$b->bar(5);
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testPassingParam()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class A {}
|
|
|
|
class B {
|
|
/** @return void */
|
|
public function bar(A $a) {}
|
|
}
|
|
|
|
$b = new B();
|
|
$b->bar(new A);
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testNullToNullableParam()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class A {}
|
|
|
|
class B {
|
|
/** @return void */
|
|
public function bar(A $a = null) {}
|
|
}
|
|
|
|
$b = new B();
|
|
$b->bar(null);
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
/**
|
|
* @expectedException \Psalm\Exception\CodeException
|
|
*/
|
|
public function testIntToNullableObjectParam()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class A {}
|
|
|
|
class B {
|
|
/** @return void */
|
|
public function bar(A $a = null) {}
|
|
}
|
|
|
|
$b = new B();
|
|
$b->bar(5);
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testObjectToNullableObjectParam()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class A {}
|
|
|
|
class B {
|
|
/** @return void */
|
|
public function bar(A $a = null) {}
|
|
}
|
|
|
|
$b = new B();
|
|
$b->bar(new A);
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
/**
|
|
* @expectedException \Psalm\Exception\CodeException
|
|
*/
|
|
public function testParamCoercionWithBadArg()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class A {}
|
|
class B extends A {
|
|
/** @return void */
|
|
public function blab() {}
|
|
}
|
|
|
|
class C {
|
|
/** @return void */
|
|
function foo(A $a) {
|
|
if ($a instanceof B) {
|
|
$a->bar();
|
|
}
|
|
}
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testParamCoercion()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class A {}
|
|
class B extends A {
|
|
/** @return void */
|
|
public function bar() {}
|
|
}
|
|
|
|
class C {
|
|
/** @return void */
|
|
function foo(A $a) {
|
|
if ($a instanceof B) {
|
|
$a->bar();
|
|
}
|
|
}
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testParamElseifCoercion()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class A {}
|
|
class B extends A {
|
|
/** @return void */
|
|
public function bar() {}
|
|
}
|
|
class C extends A {
|
|
/** @return void */
|
|
public function baz() {}
|
|
}
|
|
|
|
class D {
|
|
/** @return void */
|
|
function foo(A $a) {
|
|
if ($a instanceof B) {
|
|
$a->bar();
|
|
}
|
|
elseif ($a instanceof C) {
|
|
$a->baz();
|
|
}
|
|
}
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testAssignInsideForeach()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
$b = false;
|
|
|
|
foreach ([1, 2, 3, 4] as $a) {
|
|
if ($a === rand(0, 10)) {
|
|
$b = true;
|
|
}
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$context = new Context('somefile.php');
|
|
$file_checker->check(true, true, $context);
|
|
|
|
$this->assertSame('bool', (string) $context->vars_in_scope['$b']);
|
|
}
|
|
|
|
public function testAssignInsideForeachWithBreak()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
$b = false;
|
|
|
|
foreach ([1, 2, 3, 4] as $a) {
|
|
if ($a === rand(0, 10)) {
|
|
$b = true;
|
|
break;
|
|
}
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$context = new Context('somefile.php');
|
|
$file_checker->check(true, true, $context);
|
|
|
|
$this->assertSame('bool', (string) $context->vars_in_scope['$b']);
|
|
}
|
|
|
|
/**
|
|
* @expectedException \Psalm\Exception\CodeException
|
|
* @expectedExceptionMessage NullReference
|
|
*/
|
|
public function testNullCheckInsideForeachWithNoLeaveStatement()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class A {
|
|
/** @return array<A|null> */
|
|
public static function loadMultiple()
|
|
{
|
|
return [new A, null];
|
|
}
|
|
|
|
/** @return void */
|
|
public function bar() {
|
|
|
|
}
|
|
}
|
|
|
|
foreach (A::loadMultiple() as $a) {
|
|
if ($a === null) {
|
|
// do nothing
|
|
}
|
|
|
|
$a->bar();
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$context = new Context('somefile.php');
|
|
$file_checker->check();
|
|
}
|
|
|
|
public function testNullCheckInsideForeachWithContinue()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class A {
|
|
/** @return array<A|null> */
|
|
public static function loadMultiple()
|
|
{
|
|
return [new A, null];
|
|
}
|
|
|
|
/** @return void */
|
|
public function bar() {
|
|
|
|
}
|
|
}
|
|
|
|
foreach (A::loadMultiple() as $a) {
|
|
if ($a === null) {
|
|
continue;
|
|
}
|
|
|
|
$a->bar();
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $stmts);
|
|
$context = new Context('somefile.php');
|
|
$file_checker->check();
|
|
}
|
|
}
|