/**
     * Writes an entry for the given column (of the generated text) and associated mapping. The
     * values are stored as relative to the last seen values for each field and encoded as
     * Base64VLQs.
     */
    void writeEntry(Mapping m, int column) throws IOException {
      // The relative generated column number
      Base64VLQ.encode(out, column - previousColumn);
      previousColumn = column;
      if (m != null) {
        // The relative source file id
        int sourceId = getSourceId(m.sourceFile);
        Base64VLQ.encode(out, sourceId - previousSourceFileId);
        previousSourceFileId = sourceId;

        // The relative source file line and column
        int srcline = m.originalPosition.getLine();
        int srcColumn = m.originalPosition.getColumn();
        Base64VLQ.encode(out, srcline - previousSourceLine);
        previousSourceLine = srcline;

        Base64VLQ.encode(out, srcColumn - previousSourceColumn);
        previousSourceColumn = srcColumn;

        if (m.originalName != null) {
          // The relative id for the associated symbol name
          int nameId = getNameId(m.originalName);
          Base64VLQ.encode(out, (nameId - previousNameId));
          previousNameId = nameId;
        }
      }
    }
Ejemplo n.º 2
0
 private int nextValue() {
   return Base64VLQ.decode(content);
 }