Java 类org.eclipse.xtext.parsetree.reconstr.impl.TokenStringBuffer 实例源码

@Override
public String serialize(EObject obj, SaveOptions options) {
    checkNotNull(obj, "obj must not be null.");
    checkNotNull(options, "options must not be null.");
    try {
        if (formatter2Provider != null) {
            StringBuilder builder = new StringBuilder();
            serialize(obj, builder, options);
            return builder.toString();
        } else {
            TokenStringBuffer tokenStringBuffer = new TokenStringBuffer();
            serialize(obj, tokenStringBuffer, options);
            return tokenStringBuffer.toString();
        }
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

@Override
public IFormattedRegion format(ICompositeNode root, int offset, int length) {
    String indent = getIndentation(root, offset);
    TokenStringBuffer buf = new TokenStringBuffer();
    ITokenStream out = offset == 0 ? buf : new FilterFirstWhitespaceStream(buf);
    ITokenStream fmt;
    if (formatter instanceof IFormatterExtension) {
        EObject semanticElement = NodeModelUtils.findActualSemanticObjectFor(root);
        if (semanticElement != null)
            fmt = ((IFormatterExtension) formatter).createFormatterStream(semanticElement, indent, out, false);
        else {
            // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=380406
            ITextRegion rootRegion = root.getTextRegion();
            return new FormattedRegion(rootRegion.getOffset(), rootRegion.getLength(), root.getText());
        }
    } else
        fmt = formatter.createFormatterStream(indent, out, false);
    try {
        ITextRegion range = nodeModelStreamer.feedTokenStream(fmt, root, offset, length);
        return new FormattedRegion(range.getOffset(), range.getLength(), buf.toString());
    } catch (IOException e) {
        // this should never happen since TokenStringBuffer doesn't throw IOEs.
        throw new RuntimeException(e);
    }
}

@Override
public IFormattedRegion format(final ICompositeNode root, final int offset, final int length) {
  final TokenStringBuffer buf = new TokenStringBuffer();
  final ITokenStream out = offset == 0 ? buf : new FilterStream(buf);
  final ITokenStream formatStream = formatter.createFormatterStream(null, out, false);
  if (!(formatStream instanceof IDelegatingTokenStream)) {
    return super.format(root, offset, length);
  }
  try {
    ITextRegion range;
    if (offset > 0) {
      int noffset = root.getText().lastIndexOf('\n', offset) + 1; // Keep the new line
      int nlength = length + (offset - noffset); // Always start in the beginning of the line
      range = nodeModelStreamer.feedTokenStream(formatStream, root, noffset, nlength);
    } else {
      range = nodeModelStreamer.feedTokenStream(formatStream, root, offset, length);
    }
    return new FormattedRegion(range.getOffset(), range.getLength(), buf.toString());
  } catch (IOException e) {
    // this should never happen since TokenStringBuffer doesn't throw IOEs.
    throw new RuntimeException(e); // NOPMD
  }
}

@Override
public String serialize(EObject obj, SaveOptions options) {
    TokenStringBuffer tokenStringBuffer = new TokenStringBuffer();
    try {
        serialize(obj, tokenStringBuffer, options);
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
    return tokenStringBuffer.toString();
}

@Override
public ReplaceRegion serializeReplacement(EObject obj, SaveOptions options) {
    TokenStringBuffer tokenStringBuffer = new TokenStringBuffer();
    try {
        TreeConstructionReport report = serialize(obj, tokenStringBuffer, options);
        return new ReplaceRegion(report.getPreviousLocation(), tokenStringBuffer.toString());
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

@Override
public String toString() {
    TokenStringBuffer result = new TokenStringBuffer();
    try {
        flush(result, entries.size());
    } catch (IOException e) {
        e.printStackTrace();
        return "Error: " + e.getMessage();
    }
    return result.toString();
}

/**
 * This method implementation is copied from {@link Serializer#serialize(EObject, SaveOptions)} with the addition of the indentation parameter. {@inheritDoc}
 */
@Override
public String serialize(final EObject obj, final SaveOptions options, final String initialIndentation) {
  TokenStringBuffer tokenStringBuffer = new TokenStringBuffer();
  try {
    serialize(obj, tokenStringBuffer, options, initialIndentation);
  } catch (IOException e) {
    throw new RuntimeException(e);// NOPMD
  }
  return tokenStringBuffer.toString();
}