mirror of
https://github.com/danog/psalm.git
synced 2024-11-30 04:39:00 +01:00
887 lines
30 KiB
PHP
887 lines
30 KiB
PHP
<?php
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namespace Psalm\Tests;
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class CallableTest extends TestCase
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{
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use Traits\FileCheckerInvalidCodeParseTestTrait;
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use Traits\FileCheckerValidCodeParseTestTrait;
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/**
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* @return array
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*/
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public function providerFileCheckerValidCodeParse()
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{
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return [
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'byRefUseVar' => [
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'<?php
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/** @return void */
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function run_function(\Closure $fnc) {
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$fnc();
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}
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// here we have to make sure $data exists as a side-effect of calling `run_function`
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// because it could exist depending on how run_function is implemented
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/**
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* @return void
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* @psalm-suppress MixedArgument
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*/
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function fn() {
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run_function(
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/**
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* @return void
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*/
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function() use(&$data) {
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$data = 1;
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}
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);
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echo $data;
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}
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fn();',
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],
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'inferredArg' => [
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'<?php
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$bar = ["foo", "bar"];
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$bam = array_map(
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/**
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* @psalm-suppress MissingClosureReturnType
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*/
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function(string $a) {
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return $a . "blah";
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},
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$bar
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);',
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],
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'varReturnType' => [
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'<?php
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$add_one = function(int $a): int {
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return $a + 1;
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};
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$a = $add_one(1);',
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'assertions' => [
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'$a' => 'int',
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],
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],
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'varCallableParamReturnType' => [
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'<?php
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$add_one = function(int $a): int {
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return $a + 1;
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};
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/**
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* @param callable(int) : int $c
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*/
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function bar(callable $c) : int {
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return $c(1);
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}
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bar($add_one);',
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],
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'callableToClosure' => [
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'<?php
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/**
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* @return callable
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*/
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function foo() {
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return function(string $a): string {
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return $a . "blah";
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};
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}',
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],
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'callable' => [
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'<?php
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function foo(callable $c): void {
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echo (string)$c();
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}',
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],
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'callableClass' => [
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'<?php
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class C {
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public function __invoke(): string {
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return "You ran?";
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}
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}
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function foo(callable $c): void {
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echo (string)$c();
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}
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foo(new C());
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$c2 = new C();
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$c2();',
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],
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'correctParamType' => [
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'<?php
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$take_string = function(string $s): string { return $s; };
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$take_string("string");',
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],
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'callableMethod' => [
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'<?php
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class A {
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public static function bar(string $a): string {
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return $a . "b";
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}
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}
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function foo(callable $c): void {}
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foo("A::bar");
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foo(["A", "bar"]);
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foo([A::class, "bar"]);
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$a = new A();
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foo([$a, "bar"]);',
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],
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'arrayMapCallableMethod' => [
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'<?php
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class A {
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public static function bar(string $a): string {
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return $a . "b";
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}
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}
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function baz(string $a): string {
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return $a . "b";
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}
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$a = array_map("A::bar", ["one", "two"]);
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$b = array_map(["A", "bar"], ["one", "two"]);
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$c = array_map([A::class, "bar"], ["one", "two"]);
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$d = array_map([new A(), "bar"], ["one", "two"]);
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$a_instance = new A();
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$e = array_map([$a_instance, "bar"], ["one", "two"]);
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$f = array_map("baz", ["one", "two"]);',
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'assertions' => [
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'$a' => 'array{0:string, 1:string}',
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'$b' => 'array{0:string, 1:string}',
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'$c' => 'array{0:string, 1:string}',
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'$d' => 'array{0:string, 1:string}',
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'$e' => 'array{0:string, 1:string}',
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'$f' => 'array{0:string, 1:string}',
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],
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],
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'arrayMapClosureVar' => [
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'<?php
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$mirror = function(int $i) : int { return $i; };
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$a = array_map($mirror, [1, 2, 3]);',
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'assertions' => [
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'$a' => 'array{0:int, 1:int, 2:int}',
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],
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],
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'arrayCallableMethod' => [
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'<?php
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class A {
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public static function bar(string $a): string {
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return $a . "b";
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}
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}
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function foo(callable $c): void {}
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foo(["A", "bar"]);',
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],
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'callableFunction' => [
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'<?php
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function foo(callable $c): void {}
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foo("trim");',
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],
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'inlineCallableFunction' => [
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'<?php
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class A {
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function bar(): void {
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function foobar(int $a, int $b): int {
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return $a > $b ? 1 : 0;
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}
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$arr = [5, 4, 3, 1, 2];
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usort($arr, "fooBar");
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}
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}',
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],
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'closureSelf' => [
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'<?php
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class A
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{
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/**
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* @var self[]
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*/
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private $subitems;
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/**
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* @param self[] $in
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*/
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public function __construct(array $in = [])
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{
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array_map(function(self $i): self { return $i; }, $in);
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$this->subitems = array_map(
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function(self $i): self {
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return $i;
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},
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$in
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);
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}
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}
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new A([new A, new A]);',
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],
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'possiblyUndefinedFunction' => [
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'<?php
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/**
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* @param string|callable $middlewareOrPath
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*/
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function pipe($middlewareOrPath, ?callable $middleware = null): void { }
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pipe("zzzz", function() : void {});',
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],
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'callableWithNonInvokable' => [
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'<?php
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function asd(): void {}
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class B {}
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/**
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* @param callable|B $p
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*/
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function passes($p): void {}
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passes("asd");',
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],
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'callableWithInvokable' => [
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'<?php
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function asd(): void {}
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class A { public function __invoke(): void {} }
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/**
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* @param callable|A $p
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*/
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function fails($p): void {}
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fails("asd");',
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],
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'isCallableArray' => [
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'<?php
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class A
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{
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public function callMeMaybe(string $method): void
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{
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$handleMethod = [$this, $method];
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if (is_callable($handleMethod)) {
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$handleMethod();
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}
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}
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public function foo(): void {}
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}
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$a = new A();
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$a->callMeMaybe("foo");',
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],
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'isCallableString' => [
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'<?php
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function foo(): void {}
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function callMeMaybe(string $method): void {
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if (is_callable($method)) {
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$method();
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}
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}
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callMeMaybe("foo");',
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],
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'arrayMapVariadicClosureArg' => [
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'<?php
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$a = array_map(
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function(int $type, string ...$args):string {
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return "hello";
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},
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[1, 2, 3]
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);',
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],
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'returnsTypedClosure' => [
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'<?php
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/**
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* @param Closure(int):int $f
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* @param Closure(int):int $g
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*
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* @return Closure(int):int
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*/
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function foo(Closure $f, Closure $g) : Closure {
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return function (int $x) use ($f, $g) : int {
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return $f($g($x));
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}
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}'
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],
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'returnsTypedClosureWithClasses' => [
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'<?php
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class A {}
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class B {}
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class C {}
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/**
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* @param Closure(B):A $f
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* @param Closure(C):B $g
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*
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* @return Closure(C):A
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*/
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function foo(Closure $f, Closure $g) : Closure {
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return function (C $x) use ($f, $g) : A {
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return $f($g($x));
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}
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}
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$a = foo(
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function(B $b) : A { return new A;},
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function(C $c) : B { return new B;}
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)(new C);',
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'assertions' => [
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'$a' => 'A',
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],
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],
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'returnsTypedClosureWithSubclassParam' => [
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'<?php
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class A {}
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class B {}
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class C {}
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class C2 extends C {}
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/**
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* @param Closure(B):A $f
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* @param Closure(C):B $g
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*
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* @return Closure(C):A
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*/
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function foo(Closure $f, Closure $g) : Closure {
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return function (C2 $x) use ($f, $g) : A {
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return $f($g($x));
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}
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}
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$a = foo(
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function(B $b) : A { return new A;},
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function(C $c) : B { return new B;}
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)(new C2);',
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'assertions' => [
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'$a' => 'A',
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],
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],
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'returnsTypedClosureWithParentReturn' => [
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'<?php
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class A {}
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class B {}
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class C {}
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class A2 extends A {}
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/**
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* @param Closure(B):A2 $f
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* @param Closure(C):B $g
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*
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* @return Closure(C):A
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*/
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function foo(Closure $f, Closure $g) : Closure {
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return function (C $x) use ($f, $g) : A2 {
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return $f($g($x));
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}
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}
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$a = foo(
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function(B $b) : A2 { return new A2;},
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function(C $c) : B { return new B;}
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)(new C);',
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'assertions' => [
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'$a' => 'A',
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],
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],
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'returnsTypedCallableFromClosure' => [
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'<?php
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class A {}
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class B {}
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class C {}
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/**
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* @param Closure(B):A $f
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* @param Closure(C):B $g
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*
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* @return callable(C):A
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*/
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function foo(Closure $f, Closure $g) : callable {
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return function (C $x) use ($f, $g) : A {
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return $f($g($x));
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}
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}
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$a = foo(
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function(B $b) : A { return new A;},
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function(C $c) : B { return new B;}
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)(new C);',
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'assertions' => [
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'$a' => 'A',
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],
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],
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'inferClosureTypeWithTypehint' => [
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'<?php
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$adder1 = function(int $i) : callable {
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return function(int $j) use ($i) : int {
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return $i + $j;
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};
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};
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$adder2 = function(int $i) {
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return function(int $j) use ($i) : int {
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return $i + $j;
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};
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};',
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'assertions' => [
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'$adder1' => 'Closure(int):Closure(int):int',
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'$adder2' => 'Closure(int):Closure(int):int',
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],
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'error_levels' => ['MissingClosureReturnType'],
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],
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'inferArrayMapReturnTypeWithoutTypehints' => [
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'<?php
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/**
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* @param array{0:string,1:string}[] $ret
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* @return array{0:string,1:int}[]
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*/
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function f(array $ret) : array
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{
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return array_map(
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/**
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* @param array{0:string,1:string} $row
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*/
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function (array $row) {
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return [
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strval($row[0]),
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intval($row[1]),
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];
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},
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$ret
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);
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}',
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'assertions' => [],
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'error_levels' => ['MissingClosureReturnType'],
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],
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'inferArrayMapReturnTypeWithTypehints' => [
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'<?php
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/**
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* @param array{0:string,1:string}[] $ret
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* @return array{0:string,1:int}[]
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*/
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function f(array $ret): array
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{
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return array_map(
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/**
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* @param array{0:string,1:string} $row
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*/
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function (array $row): array {
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return [
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strval($row[0]),
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intval($row[1]),
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];
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},
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$ret
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);
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}',
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],
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'allowVoidCallable' => [
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'<?php
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/**
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* @param callable():void $p
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*/
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function doSomething($p): void {}
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doSomething(function(): bool { return false; });',
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],
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'callableProperties' => [
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'<?php
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class C {
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/** @psalm-var callable():bool */
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private $callable;
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/**
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* @psalm-param callable():bool $callable
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*/
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public function __construct(callable $callable) {
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$this->callable = $callable;
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}
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public function callTheCallableDirectly(): bool {
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return ($this->callable)();
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}
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public function callTheCallableIndirectly(): bool {
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$r = $this->callable;
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return $r();
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}
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}',
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],
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'invokableProperties' => [
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'<?php
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class A {
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public function __invoke(): bool { return true; }
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}
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|
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class C {
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/** @var A $invokable */
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private $invokable;
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public function __construct(A $invokable) {
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$this->invokable = $invokable;
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}
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public function callTheInvokableDirectly(): bool {
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return ($this->invokable)();
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}
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public function callTheInvokableIndirectly(): bool {
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$r = $this->invokable;
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return $r();
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}
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}',
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],
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|
'PHP71-mirrorCallableParams' => [
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|
'<?php
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namespace NS;
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use Closure;
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|
/** @param Closure(int):bool $c */
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function acceptsIntToBool(Closure $c): void {}
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acceptsIntToBool(Closure::fromCallable(function(int $n): bool { return $n > 0 }));',
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],
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|
'singleLineClosures' => [
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|
'<?php
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$a = function() : Closure { return function() : string { return "hello"; }};
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$b = $a()();',
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|
'assertions' => [
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'$a' => 'Closure():Closure():string',
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'$b' => 'string',
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],
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],
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|
'nullableReturnTypeShorthand' => [
|
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'<?php
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/** @param callable(mixed):?A $a */
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function foo(callable $a): void {}',
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],
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|
'voidReturningArrayMap' => [
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|
'<?php
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array_map(
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function(int $i) : void {
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echo $i;
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},
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[1, 2, 3]
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);',
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],
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];
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|
}
|
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|
|
/**
|
|
* @return array
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*/
|
|
public function providerFileCheckerInvalidCodeParse()
|
|
{
|
|
return [
|
|
'wrongArg' => [
|
|
'<?php
|
|
$bar = ["foo", "bar"];
|
|
|
|
$bam = array_map(
|
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function(int $a): int {
|
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return $a + 1;
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},
|
|
$bar
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|
);',
|
|
'error_message' => 'InvalidScalarArgument',
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|
],
|
|
'noReturn' => [
|
|
'<?php
|
|
$bar = ["foo", "bar"];
|
|
|
|
$bam = array_map(
|
|
function(string $a): string {
|
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},
|
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$bar
|
|
);',
|
|
'error_message' => 'InvalidReturnType',
|
|
],
|
|
'undefinedCallableClass' => [
|
|
'<?php
|
|
class A {
|
|
public function getFoo(): Foo
|
|
{
|
|
return new Foo([]);
|
|
}
|
|
|
|
/**
|
|
* @param mixed $argOne
|
|
* @param mixed $argTwo
|
|
* @return void
|
|
*/
|
|
public function bar($argOne, $argTwo)
|
|
{
|
|
$this->getFoo()($argOne, $argTwo);
|
|
}
|
|
}',
|
|
'error_message' => 'InvalidFunctionCall',
|
|
'error_levels' => ['UndefinedClass'],
|
|
],
|
|
'undefinedCallableMethod' => [
|
|
'<?php
|
|
class A {
|
|
public static function bar(string $a): string {
|
|
return $a . "b";
|
|
}
|
|
}
|
|
|
|
function foo(callable $c): void {}
|
|
|
|
foo("A::barr");',
|
|
'error_message' => 'UndefinedMethod',
|
|
],
|
|
'undefinedCallableMethodClass' => [
|
|
'<?php
|
|
class A {
|
|
public static function bar(string $a): string {
|
|
return $a . "b";
|
|
}
|
|
}
|
|
|
|
function foo(callable $c): void {}
|
|
|
|
foo("B::bar");',
|
|
'error_message' => 'UndefinedClass',
|
|
],
|
|
'undefinedCallableFunction' => [
|
|
'<?php
|
|
function foo(callable $c): void {}
|
|
|
|
foo("trime");',
|
|
'error_message' => 'UndefinedFunction',
|
|
],
|
|
'possiblyNullFunctionCall' => [
|
|
'<?php
|
|
/**
|
|
* @var Closure|null $foo
|
|
*/
|
|
$foo = null;
|
|
|
|
|
|
$foo =
|
|
/** @param mixed $bar */
|
|
function ($bar) use (&$foo): string
|
|
{
|
|
if (is_array($bar)) {
|
|
return $foo($bar);
|
|
}
|
|
|
|
return $bar;
|
|
};',
|
|
'error_message' => 'MixedReturnStatement',
|
|
],
|
|
'stringFunctionCall' => [
|
|
'<?php
|
|
$bad_one = "hello";
|
|
$a = $bad_one(1);',
|
|
'error_message' => 'MixedAssignment',
|
|
],
|
|
'wrongParamType' => [
|
|
'<?php
|
|
$take_string = function(string $s): string { return $s; };
|
|
$take_string(42);',
|
|
'error_message' => 'InvalidScalarArgument',
|
|
],
|
|
'missingClosureReturnType' => [
|
|
'<?php
|
|
$a = function() {
|
|
return "foo";
|
|
}',
|
|
'error_message' => 'MissingClosureReturnType',
|
|
],
|
|
'wrongCallableReturnType' => [
|
|
'<?php
|
|
$add_one = function(int $a): int {
|
|
return $a + 1;
|
|
};
|
|
|
|
/**
|
|
* @param callable(int) : int $c
|
|
*/
|
|
function bar(callable $c) : string {
|
|
return $c(1);
|
|
}
|
|
|
|
bar($add_one);',
|
|
'error_message' => 'InvalidReturnStatement',
|
|
],
|
|
'returnsTypedClosureWithBadReturnType' => [
|
|
'<?php
|
|
/**
|
|
* @param Closure(int):int $f
|
|
* @param Closure(int):int $g
|
|
*
|
|
* @return Closure(int):string
|
|
*/
|
|
function foo(Closure $f, Closure $g) : Closure {
|
|
return function (int $x) use ($f, $g) : int {
|
|
return $f($g($x));
|
|
}
|
|
}',
|
|
'error_message' => 'InvalidReturnStatement',
|
|
],
|
|
'returnsTypedCallableWithBadReturnType' => [
|
|
'<?php
|
|
/**
|
|
* @param Closure(int):int $f
|
|
* @param Closure(int):int $g
|
|
*
|
|
* @return callable(int):string
|
|
*/
|
|
function foo(Closure $f, Closure $g) : callable {
|
|
return function (int $x) use ($f, $g) : int {
|
|
return $f($g($x));
|
|
}
|
|
}',
|
|
'error_message' => 'InvalidReturnStatement',
|
|
],
|
|
'returnsTypedClosureWithBadParamType' => [
|
|
'<?php
|
|
/**
|
|
* @param Closure(int):int $f
|
|
* @param Closure(int):int $g
|
|
*
|
|
* @return Closure(string):int
|
|
*/
|
|
function foo(Closure $f, Closure $g) : Closure {
|
|
return function (int $x) use ($f, $g) : int {
|
|
return $f($g($x));
|
|
}
|
|
}',
|
|
'error_message' => 'InvalidReturnStatement',
|
|
],
|
|
'returnsTypedCallableWithBadParamType' => [
|
|
'<?php
|
|
/**
|
|
* @param Closure(int):int $f
|
|
* @param Closure(int):int $g
|
|
*
|
|
* @return callable(string):int
|
|
*/
|
|
function foo(Closure $f, Closure $g) : callable {
|
|
return function (int $x) use ($f, $g) : int {
|
|
return $f($g($x));
|
|
}
|
|
}',
|
|
'error_message' => 'InvalidReturnStatement',
|
|
],
|
|
'returnsTypedClosureWithBadCall' => [
|
|
'<?php
|
|
class A {}
|
|
class B {}
|
|
class C {}
|
|
class D {}
|
|
|
|
/**
|
|
* @param Closure(B):A $f
|
|
* @param Closure(C):B $g
|
|
*
|
|
* @return Closure(C):A
|
|
*/
|
|
function foo(Closure $f, Closure $g) : Closure {
|
|
return function (int $x) use ($f, $g) : int {
|
|
return $f($g($x));
|
|
}
|
|
}',
|
|
'error_message' => 'InvalidArgument',
|
|
],
|
|
'returnsTypedClosureWithSubclassParam' => [
|
|
'<?php
|
|
class A {}
|
|
class B {}
|
|
class C {}
|
|
class C2 extends C {}
|
|
|
|
/**
|
|
* @param Closure(B):A $f
|
|
* @param Closure(C):B $g
|
|
*
|
|
* @return Closure(C2):A
|
|
*/
|
|
function foo(Closure $f, Closure $g) : Closure {
|
|
return function (C $x) use ($f, $g) : A {
|
|
return $f($g($x));
|
|
}
|
|
}',
|
|
'error_message' => 'LessSpecificReturnStatement',
|
|
],
|
|
'returnsTypedClosureWithSubclassReturn' => [
|
|
'<?php
|
|
class A {}
|
|
class B {}
|
|
class C {}
|
|
class A2 extends A {}
|
|
|
|
/**
|
|
* @param Closure(B):A $f
|
|
* @param Closure(C):B $g
|
|
*
|
|
* @return Closure(C):A2
|
|
*/
|
|
function foo(Closure $f, Closure $g) : Closure {
|
|
return function (C $x) use ($f, $g) : A {
|
|
return $f($g($x));
|
|
}
|
|
}',
|
|
'error_message' => 'LessSpecificReturnStatement',
|
|
],
|
|
'returnsTypedClosureFromCallable' => [
|
|
'<?php
|
|
class A {}
|
|
class B {}
|
|
class C {}
|
|
|
|
/**
|
|
* @param Closure(B):A $f
|
|
* @param Closure(C):B $g
|
|
*
|
|
* @return callable(C):A
|
|
*/
|
|
function foo(Closure $f, Closure $g) : callable {
|
|
return function (C $x) use ($f, $g) : A {
|
|
return $f($g($x));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param Closure(B):A $f
|
|
* @param Closure(C):B $g
|
|
*
|
|
* @return Closure(C):A
|
|
*/
|
|
function bar(Closure $f, Closure $g) : Closure {
|
|
return foo($f, $g);
|
|
}',
|
|
'error_message' => 'LessSpecificReturnStatement',
|
|
],
|
|
'undefinedVariable' => [
|
|
'<?php
|
|
$a = function() use ($i) {};',
|
|
'error_message' => 'UndefinedVariable',
|
|
],
|
|
'voidReturningArrayMap' => [
|
|
'<?php
|
|
$arr = array_map(
|
|
function(int $i) : void {
|
|
echo $i;
|
|
},
|
|
[1, 2, 3]
|
|
);
|
|
|
|
foreach ($arr as $a) {
|
|
if ($a) {}
|
|
}',
|
|
'error_message' => 'TypeDoesNotContainType',
|
|
],
|
|
];
|
|
}
|
|
}
|