Turn on checkMissingClosureNativeReturnTypehintRule

Author: ondrejmirtes

README.md

@@ -27,6 +27,7 @@
 * Correct case for inherited and implemented method names.
 * Contravariance for parameter types and covariance for return types in inherited methods (also known as Liskov substitution principle - LSP)
 * Check LSP even for static methods
+* Check missing typehint in anonymous function when a native one could be added
 
 Additional rules are coming in subsequent releases!
 

rules.neon

@@ -6,6 +6,7 @@ parameters:
 	checkAlwaysTrueStrictComparison: true
 	checkExplicitMixedMissingReturn: true
 	checkFunctionNameCase: true
+	checkMissingClosureNativeReturnTypehintRule: true
 	reportMaybesInMethodSignatures: true
 	reportStaticMethodSignatures: true
 

tests/Levels/data/foreach-0.json

@@ -0,0 +1,7 @@
+[
+    {
+        "message": "Anonymous function should have native typehint \"void\".",
+        "line": 3,
+        "ignorable": true
+    }
+]