1 files changed, 74 insertions, 0 deletions
diff --git a/java/org/eclipse/jgit/diff/Edit_JsonSerializer.java b/java/org/eclipse/jgit/diff/Edit_JsonSerializer.java
new file mode 100644
index 0000000000..184cb36a95
--- /dev/null
+++ b/java/org/eclipse/jgit/diff/Edit_JsonSerializer.java
@@ -0,0 +1,74 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package org.eclipse.jgit.diff;
+
+import com.google.gwt.core.client.JavaScriptObject;
+import com.google.gwtjsonrpc.client.impl.JsonSerializer;
+import java.util.ArrayList;
+import java.util.List;
+
+public class Edit_JsonSerializer extends JsonSerializer<Edit> {
+  public static final Edit_JsonSerializer INSTANCE = new Edit_JsonSerializer();
+
+  @Override
+  public Edit fromJson(Object jso) {
+    if (jso == null) {
+      return null;
+    }
+
+    final JavaScriptObject o = (JavaScriptObject) jso;
+    final int cnt = length(o);
+    if (4 == cnt) {
+      return new Edit(get(o, 0), get(o, 1), get(o, 2), get(o, 3));
+    }
+
+    List<Edit> l = new ArrayList<>((cnt / 4) - 1);
+    for (int i = 4; i < cnt; ) {
+      int as = get(o, i++);
+      int ae = get(o, i++);
+      int bs = get(o, i++);
+      int be = get(o, i++);
+      l.add(new Edit(as, ae, bs, be));
+    }
+    return new ReplaceEdit(get(o, 0), get(o, 1), get(o, 2), get(o, 3), l);
+  }
+
+  @Override
+  public void printJson(StringBuilder sb, Edit o) {
+    sb.append('[');
+    append(sb, o);
+    if (o instanceof ReplaceEdit) {
+      for (Edit e : ((ReplaceEdit) o).getInternalEdits()) {
+        sb.append(',');
+        append(sb, e);
+      }
+    }
+    sb.append(']');
+  }
+
+  private void append(StringBuilder sb, Edit o) {
+    sb.append(o.getBeginA());
+    sb.append(',');
+    sb.append(o.getEndA());
+    sb.append(',');
+    sb.append(o.getBeginB());
+    sb.append(',');
+    sb.append(o.getEndB());
+  }
+
+  private static native int length(JavaScriptObject jso) /*-{ return jso.length; }-*/;
+
+  private static native int get(JavaScriptObject jso, int idx) /*-{ return jso[idx]; }-*/;
+}