Merge pull request #6979 from orklah/6975

don't accept unresolved literal string as valid callable-strings

src/Psalm/Internal/Type/Comparator/ScalarTypeComparator.php

@@ -582,6 +582,11 @@ class ScalarTypeComparator
                 }
             }
 
+            if (!$input_callable) {
+                //we could not find a callable for the input type, so the input is not contained in the container
+                return false;
+            }
+
             return true;
         }
 

tests/CallableTest.php

@@ -1219,6 +1219,18 @@ class CallableTest extends TestCase
                     }',
                 'error_message' => 'InvalidScalarArgument',
             ],
+            'inexistantCallableinCallableString' => [
+                '<?php
+                    /**
+                     * @param callable-string $c
+                     */
+                    function c(string $c): void {
+                        $c();
+                    }
+
+                    c("hii");',
+                'error_message' => 'InvalidArgument',
+            ],
         ];
     }
 }

tests/TypeParseTest.php

@@ -973,6 +973,7 @@ class TypeParseTest extends TestCase
             }
         }
 
+        /** @psalm-suppress InvalidArgument Psalm couldn't detect the function exists */
         $reflectionFunc = new \ReflectionFunction('Psalm\Tests\someFunction');
         $reflectionParams = $reflectionFunc->getParameters();