From a4862e790ec34a902b322e22e92acc049b63941d Mon Sep 17 00:00:00 2001
From: Feng Xiao <xfxyjwf@gmail.com>
Date: Wed, 8 Aug 2018 17:21:04 -0700
Subject: Update generated descriptors.

---
 objectivec/google/protobuf/FieldMask.pbobjc.h | 44 +++++++++++----------------
 1 file changed, 18 insertions(+), 26 deletions(-)

(limited to 'objectivec/google/protobuf')

diff --git a/objectivec/google/protobuf/FieldMask.pbobjc.h b/objectivec/google/protobuf/FieldMask.pbobjc.h
index 73296d57..72cac9aa 100644
--- a/objectivec/google/protobuf/FieldMask.pbobjc.h
+++ b/objectivec/google/protobuf/FieldMask.pbobjc.h
@@ -123,57 +123,49 @@ typedef GPB_ENUM(GPBFieldMask_FieldNumber) {
  * describe the updated values, the API ignores the values of all
  * fields not covered by the mask.
  *
- * If a repeated field is specified for an update operation, the existing
- * repeated values in the target resource will be overwritten by the new values.
- * Note that a repeated field is only allowed in the last position of a `paths`
- * string.
+ * If a repeated field is specified for an update operation, new values will
+ * be appended to the existing repeated field in the target resource. Note that
+ * a repeated field is only allowed in the last position of a `paths` string.
  *
  * If a sub-message is specified in the last position of the field mask for an
- * update operation, then the existing sub-message in the target resource is
- * overwritten. Given the target message:
+ * update operation, then new value will be merged into the existing sub-message
+ * in the target resource.
+ *
+ * For example, given the target message:
  *
  *     f {
  *       b {
- *         d : 1
- *         x : 2
+ *         d: 1
+ *         x: 2
  *       }
- *       c : 1
+ *       c: [1]
  *     }
  *
  * And an update message:
  *
  *     f {
  *       b {
- *         d : 10
+ *         d: 10
  *       }
+ *       c: [2]
  *     }
  *
  * then if the field mask is:
  *
- *  paths: "f.b"
+ *  paths: ["f.b", "f.c"]
  *
  * then the result will be:
  *
  *     f {
  *       b {
- *         d : 10
+ *         d: 10
+ *         x: 2
  *       }
- *       c : 1
+ *       c: [1, 2]
  *     }
  *
- * However, if the update mask was:
- *
- *  paths: "f.b.d"
- *
- * then the result would be:
- *
- *     f {
- *       b {
- *         d : 10
- *         x : 2
- *       }
- *       c : 1
- *     }
+ * An implementation may provide options to override this default behavior for
+ * repeated and message fields.
  *
  * In order to reset a field's value to the default, the field must
  * be in the mask and set to the default value in the provided resource.
-- 
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