/** Creates an "OriginalMapping" object for the given entry object. */
private OriginalMapping getOriginalMappingForEntry(Entry entry) {
if (entry.getSourceFileId() == UNMAPPED) {
return null;
} else {
// Adjust the line/column here to be start at 1.
Builder x =
OriginalMapping.newBuilder()
.setOriginalFile(sources[entry.getSourceFileId()])
.setLineNumber(entry.getSourceLine() + 1)
.setColumnPosition(entry.getSourceColumn() + 1);
if (entry.getNameId() != UNMAPPED) {
x.setIdentifier(names[entry.getNameId()]);
}
return x.build();
}
}
/**
* Reverse the source map; the created mapping will allow us to quickly go from a source file and
* line number to a collection of target OriginalMappings.
*/
private void createReverseMapping() {
reverseSourceMapping = new HashMap<String, Map<Integer, Collection<OriginalMapping>>>();
for (int targetLine = 0; targetLine < lines.size(); targetLine++) {
ArrayList<Entry> entries = lines.get(targetLine);
if (entries != null) {
for (Entry entry : entries) {
if (entry.getSourceFileId() != UNMAPPED && entry.getSourceLine() != UNMAPPED) {
String originalFile = sources[entry.getSourceFileId()];
if (!reverseSourceMapping.containsKey(originalFile)) {
reverseSourceMapping.put(
originalFile, new HashMap<Integer, Collection<OriginalMapping>>());
}
Map<Integer, Collection<OriginalMapping>> lineToCollectionMap =
reverseSourceMapping.get(originalFile);
int sourceLine = entry.getSourceLine();
if (!lineToCollectionMap.containsKey(sourceLine)) {
lineToCollectionMap.put(sourceLine, new ArrayList<OriginalMapping>(1));
}
Collection<OriginalMapping> mappings = lineToCollectionMap.get(sourceLine);
Builder builder =
OriginalMapping.newBuilder()
.setLineNumber(targetLine)
.setColumnPosition(entry.getGeneratedColumn());
mappings.add(builder.build());
}
}
}
}
}