gx publish 0.7.22

Use value receiver for MarshalJSON so we can marshal values

.gx/lastpubver

@@ -1 +1 @@
-0.7.20: QmcZfnkapfECQGcLZaf9B79NRg7cRa9EnZh4LSbkCzwNvY
+0.7.22: QmYVNvtQkeZ6AKSwDrjQTs432QtL6umrrK41EBq3cu7iSP

cid.go

@@ -410,7 +410,7 @@ func (c *Cid) UnmarshalJSON(b []byte) error {
 //
 // Note that this formatting comes from the IPLD specification
 // (https://github.com/ipld/specs/tree/master/ipld)
-func (c *Cid) MarshalJSON() ([]byte, error) {
+func (c Cid) MarshalJSON() ([]byte, error) {
 	return []byte(fmt.Sprintf("{\"/\":\"%s\"}", c.String())), nil
 }
 

cid_test.go

@@ -383,3 +383,32 @@ func TestFromJson(t *testing.T) {
 		t.Fatal("json parsing failed")
 	}
 }
+
+func TestJsonRoundTrip(t *testing.T) {
+	exp, err := Decode("zb2rhhFAEMepUBbGyP1k8tGfz7BSciKXP6GHuUeUsJBaK6cqG")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Verify it works for a *Cid.
+	enc, err := json.Marshal(exp)
+	if err != nil {
+		t.Fatal(err)
+	}
+	var actual Cid
+	err = json.Unmarshal(enc, &actual)
+	if !exp.Equals(&actual) {
+		t.Fatal("cids not equal for *Cid")
+	}
+
+	// Verify it works for a Cid.
+	enc, err = json.Marshal(*exp)
+	if err != nil {
+		t.Fatal(err)
+	}
+	var actual2 Cid
+	err = json.Unmarshal(enc, &actual2)
+	if !exp.Equals(&actual2) {
+		t.Fatal("cids not equal for Cid")
+	}
+}

package.json

@@ -9,9 +9,9 @@
   "gxDependencies": [
     {
       "author": "whyrusleeping",
-      "hash": "QmZyZDi491cCNTLfAhwcaDii2Kg4pwKRkhqQzURGDvY6ua",
+      "hash": "QmPnFwZ2JXKnXgMw8CdBPxn7FWh6LLdjUjxV1fKHuJnkr8",
       "name": "go-multihash",
-      "version": "1.0.7"
+      "version": "1.0.8"
     },
     {
       "author": "whyrusleeping",
@@ -25,6 +25,6 @@
   "license": "MIT",
   "name": "go-cid",
   "releaseCmd": "git commit -a -m \"gx publish $VERSION\"",
-  "version": "0.7.20"
+  "version": "0.7.22"
 }