| /* |
| * Copyright 2014 Google Inc. |
| * |
| * 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 com.google.gwt.core.ext.linker.impl; |
| |
| import com.google.gwt.core.ext.soyc.Range; |
| import com.google.gwt.dev.jjs.JsSourceMap; |
| import com.google.gwt.thirdparty.guava.common.collect.Lists; |
| |
| import java.util.List; |
| |
| /** |
| * A builder for combining existing JS source maps. |
| * <p> |
| * Takes care of rebasing the offset of appended ranges onto the end of the previously |
| * accumulated ranges. |
| */ |
| public class JsSourceMapBuilder { |
| |
| private int bytes; |
| private final List<Range> ranges = Lists.newArrayList(); |
| private int lines; |
| |
| public void append(JsSourceMap jsSourceMap) { |
| for (Range normalizedRange : jsSourceMap.getRanges()) { |
| Range offsetRange = normalizedRange.createOffsetCopy(bytes, lines); |
| ranges.add(offsetRange); |
| } |
| bytes += jsSourceMap.getBytes(); |
| lines += jsSourceMap.getLines(); |
| } |
| |
| public JsSourceMap build() { |
| return new JsSourceMap(ranges, bytes, lines); |
| } |
| } |