blob: 184cb36a95c800224391fc21ba59f60ff76341c9 [file] [log] [blame]
// 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]; }-*/;
}