Generate not-null assertions after getting a field

2012-10-02 22:09:02 +04:00
parent 27bea0a607
commit fcbc95bbb4
5 changed files with 31 additions and 1 deletions
@@ -43,6 +43,14 @@ public class Intrinsics {
        }
    }

+    public static void checkFieldIsNotNull(Object value, String className, String fieldName) {
+        if (value == null) {
+            IllegalStateException exception =
+                    new IllegalStateException("Field specified as non-null contains null: " + className + "." + fieldName);
+            throw sanitizeStackTrace(exception);
+        }
+    }
+
    public static <T> Class<T> getJavaClass(T self) {
        return (Class<T>) self.getClass();
    }
@@ -66,7 +74,7 @@ public class Intrinsics {
    }

    private static final Set<String> METHOD_NAMES_TO_SKIP = new HashSet<String>(Arrays.asList(
-            "throwNpe", "checkReturnedValueIsNotNull"
+            "throwNpe", "checkReturnedValueIsNotNull", "checkFieldIsNotNull"
    ));

    private static <T extends Throwable> T sanitizeStackTrace(T throwable) {