Fix constructor called methods side effects overwriting the type (#740)

* properly handling side effects originating from constructors methods calls

* remove comment

* Fix styling

---------

Co-authored-by: romalytvynenko <[email protected]>

Author: romalytvynenko

src/Infer/Services/ReferenceTypeResolver.php

@@ -815,13 +815,22 @@ private function getMethodCallsSideEffectIntroducedTypesInConstructor(Generic $t
                 continue;
             }
 
-            $type = $this->getFunctionCallResult($methodDefinition, $se->arguments, $type, new MethodCallEvent(
+            $event = new MethodCallEvent(
                 instance: $type,
                 name: $se->methodName,
                 scope: $scope,
                 arguments: $se->arguments,
                 methodDefiningClassName: $type->name,
-            ));
+            );
+
+            foreach ($methodDefinition->sideEffects as $sideEffect) {
+                if (
+                    $sideEffect instanceof SelfTemplateDefinition
+                    && $type instanceof Generic
+                ) {
+                    $sideEffect->apply($type, $event);
+                }
+            }
         }
 
         return $type;

tests/Infer/Analyzer/ClassAnalyzerTest.php

@@ -105,6 +105,71 @@
     expect($type->toString())->toBe('Dedoc\Scramble\Tests\Infer\stubs\ChildParentSetterCalls<string(from ChildParentSetterCalls constructor), string(from ChildParentSetterCalls wow), string(some)>');
 });
 
+it('analyzes fluent setters called in constructor', function () {
+    $this->classAnalyzer->analyze(Foo_ClassAnalyzerTest::class);
+
+    $type = getStatementType('new Foo_ClassAnalyzerTest()');
+
+    expect($type->toString())->toBe('Foo_ClassAnalyzerTest<int(42), string(baz)>');
+});
+class Foo_ClassAnalyzerTest
+{
+    public int $foo;
+
+    public string $bar;
+
+    public function __construct()
+    {
+        $this
+            ->setFoo(42)
+            ->setBar('baz');
+    }
+
+    public function setFoo($number)
+    {
+        $this->foo = $number;
+
+        return $this;
+    }
+
+    public function setBar($string)
+    {
+        $this->bar = $string;
+
+        return $this;
+    }
+}
+
+it('analyzes not fluent setters called in constructor', function () {
+    $this->classAnalyzer->analyze(FooNotFluent_ClassAnalyzerTest::class);
+
+    $type = getStatementType('new FooNotFluent_ClassAnalyzerTest()');
+
+    expect($type->toString())->toBe('FooNotFluent_ClassAnalyzerTest<int(42), string(baz)>');
+});
+class FooNotFluent_ClassAnalyzerTest
+{
+    public int $foo;
+
+    public string $bar;
+
+    public function __construct()
+    {
+        $this->setFoo(42);
+        $this->setBar('baz');
+    }
+
+    public function setFoo($number)
+    {
+        $this->foo = $number;
+    }
+
+    public function setBar($string)
+    {
+        $this->bar = $string;
+    }
+}
+
 it('analyzes static method call on class constants', function () {
     $this->classAnalyzer->analyze(ConstFetchStaticCallChild_ClassAnalyzerTest::class);