Revert "Fix logic for @nullable annotation on type parameter (uber#702)"

This reverts commit 5ccffb5.
msridhar · Jul 18, 2023 · c4e1f9a · c4e1f9a
1 parent 3ad7f9b
commit c4e1f9a
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Showing 2 changed files with 8 additions and 46 deletions.
diff --git a/nullaway/src/main/java/com/uber/nullaway/NullabilityUtil.java b/nullaway/src/main/java/com/uber/nullaway/NullabilityUtil.java
@@ -272,27 +272,19 @@ public static Stream<? extends AnnotationMirror> getAllAnnotationsForParameter(
                         && t.position.parameter_index == paramInd));
   }
 
-  /**
-   * Gets the type use annotations on a symbol, ignoring annotations on components of the type (type
-   * arguments, wildcards, etc.)
-   */
   private static Stream<? extends AnnotationMirror> getTypeUseAnnotations(Symbol symbol) {
     Stream<Attribute.TypeCompound> rawTypeAttributes = symbol.getRawTypeAttributes().stream();
     if (symbol instanceof Symbol.MethodSymbol) {
-      // for methods, we want annotations on the return type
+      // for methods, we want the type-use annotations on the return type
       return rawTypeAttributes.filter(
-          (t) -> t.position.type.equals(TargetType.METHOD_RETURN) && isDirectTypeUseAnnotation(t));
-    } else {
-      // filter for annotations directly on the type
-      return rawTypeAttributes.filter(NullabilityUtil::isDirectTypeUseAnnotation);
+          (t) ->
+              // location is a list of TypePathEntry objects, indicating whether the annotation is
+              // on an array, inner type, wildcard, or type argument. If it's empty, then the
+              // annotation
+              // is directly on the return type.
+              t.position.type.equals(TargetType.METHOD_RETURN) && t.position.location.isEmpty());
     }
-  }
-
-  private static boolean isDirectTypeUseAnnotation(Attribute.TypeCompound t) {
-    // location is a list of TypePathEntry objects, indicating whether the annotation is
-    // on an array, inner type, wildcard, or type argument. If it's empty, then the
-    // annotation is directly on the type.
-    return t.position.location.isEmpty();
+    return rawTypeAttributes;
   }
 
   /**

diff --git a/nullaway/src/test/java/com/uber/nullaway/NullAwayCoreTests.java b/nullaway/src/test/java/com/uber/nullaway/NullAwayCoreTests.java
@@ -960,34 +960,4 @@ public void primitiveCastsRememberNullChecks() {
             "}")
         .doTest();
   }
-
-  @Test
-  public void annotationAppliedToTypeParameter() {
-    defaultCompilationHelper
-        .addSourceLines(
-            "Test.java",
-            "package com.uber;",
-            "import java.util.List;",
-            "import java.util.ArrayList;",
-            "import org.checkerframework.checker.nullness.qual.Nullable;",
-            "class TypeArgumentAnnotation {",
-            "  List<@Nullable String> fSafe = new ArrayList<>();",
-            "  @Nullable List<String> fUnsafe = new ArrayList<>();",
-            "  void useParamSafe(List<@Nullable String> list) {",
-            "    list.hashCode();",
-            "  }",
-            "  void useParamUnsafe(@Nullable List<String> list) {",
-            "    // BUG: Diagnostic contains: dereferenced",
-            "    list.hashCode();",
-            "  }",
-            "  void useFieldSafe() {",
-            "    fSafe.hashCode();",
-            "  }",
-            "  void useFieldUnsafe() {",
-            "    // BUG: Diagnostic contains: dereferenced",
-            "    fUnsafe.hashCode();",
-            "  }",
-            "}")
-        .doTest();
-  }
 }