Java Code Examples for com.google.googlejavaformat.Newlines#guessLineSeparator()

/** Construct replacements to fix unused imports. */
private static RangeMap<Integer, String> buildReplacements(
    String contents,
    JCCompilationUnit unit,
    Set<String> usedNames,
    Multimap<String, Range<Integer>> usedInJavadoc) {
  RangeMap<Integer, String> replacements = TreeRangeMap.create();
  for (JCImport importTree : unit.getImports()) {
    String simpleName = getSimpleName(importTree);
    if (!isUnused(unit, usedNames, usedInJavadoc, importTree, simpleName)) {
      continue;
    }
    // delete the import
    int endPosition = importTree.getEndPosition(unit.endPositions);
    endPosition = Math.max(CharMatcher.isNot(' ').indexIn(contents, endPosition), endPosition);
    String sep = Newlines.guessLineSeparator(contents);
    if (endPosition + sep.length() < contents.length()
        && contents.subSequence(endPosition, endPosition + sep.length()).toString().equals(sep)) {
      endPosition += sep.length();
    }
    replacements.put(Range.closedOpen(importTree.getStartPosition(), endPosition), "");
  }
  return replacements;
}
 

/**
 * Emit a list of {@link Replacement}s to convert from input to output.
 *
 * @param input           the input compilation unit
 * @param characterRanges the character ranges to reformat
 * @return a list of {@link Replacement}s, sorted from low index to high index, without overlaps
 * @throws FormatterException if the input string cannot be parsed
 */
public ImmutableList<Replacement> getFormatReplacements(
        String input, Collection<Range<Integer>> characterRanges) throws FormatterException {
    JavaInput javaInput = new JavaInput(input);

    // TODO(cushon): this is only safe because the modifier ordering doesn't affect whitespace,
    // and doesn't change the replacements that are output. This is not true in general for
    // 'de-linting' changes (e.g. import ordering).
    javaInput = ModifierOrderer.reorderModifiers(javaInput, characterRanges);

    String lineSeparator = Newlines.guessLineSeparator(input);
    JavaOutput javaOutput =
            new JavaOutput(lineSeparator, javaInput, new JavaCommentsHelper(lineSeparator, options));
    try {
        format(javaInput, javaOutput, options);
    } catch (FormattingError e) {
        throw new FormatterException(e.diagnostics());
    }
    RangeSet<Integer> tokenRangeSet = javaInput.characterRangesToTokenRanges(characterRanges);
    return javaOutput.getFormatReplacements(tokenRangeSet);
}
 

/**
 * Emit a list of {@link Replacement}s to convert from input to output.
 *
 * @param input           the input compilation unit
 * @param characterRanges the character ranges to reformat
 * @return a list of {@link Replacement}s, sorted from low index to high index, without overlaps
 * @throws FormatterException if the input string cannot be parsed
 */
public ImmutableList<Replacement> getFormatReplacements(
        String input, Collection<Range<Integer>> characterRanges) throws FormatterException {
    JavaInput javaInput = new JavaInput(input);

    // TODO(cushon): this is only safe because the modifier ordering doesn't affect whitespace,
    // and doesn't change the replacements that are output. This is not true in general for
    // 'de-linting' changes (e.g. import ordering).
    javaInput = ModifierOrderer.reorderModifiers(javaInput, characterRanges);

    String lineSeparator = Newlines.guessLineSeparator(input);
    JavaOutput javaOutput =
            new JavaOutput(lineSeparator, javaInput, new JavaCommentsHelper(lineSeparator, options));
    try {
        format(javaInput, javaOutput, options);
    } catch (FormattingError e) {
        throw new FormatterException(e.diagnostics());
    }
    RangeSet<Integer> tokenRangeSet = javaInput.characterRangesToTokenRanges(characterRanges);
    return javaOutput.getFormatReplacements(tokenRangeSet);
}
 

/**
 * Emit a list of {@link Replacement}s to convert from input to output.
 *
 * @param input the input compilation unit
 * @param characterRanges the character ranges to reformat
 * @return a list of {@link Replacement}s, sorted from low index to high index, without overlaps
 * @throws FormatterException if the input string cannot be parsed
 */
public ImmutableList<Replacement> getFormatReplacements(
    String input, Collection<Range<Integer>> characterRanges) throws FormatterException {
  JavaInput javaInput = new JavaInput(input);

  // TODO(cushon): this is only safe because the modifier ordering doesn't affect whitespace,
  // and doesn't change the replacements that are output. This is not true in general for
  // 'de-linting' changes (e.g. import ordering).
  javaInput = ModifierOrderer.reorderModifiers(javaInput, characterRanges);

  String lineSeparator = Newlines.guessLineSeparator(input);
  JavaOutput javaOutput =
      new JavaOutput(lineSeparator, javaInput, new JavaCommentsHelper(lineSeparator, options));
  try {
    format(javaInput, javaOutput, options);
  } catch (FormattingError e) {
    throw new FormatterException(e.diagnostics());
  }
  RangeSet<Integer> tokenRangeSet = javaInput.characterRangesToTokenRanges(characterRanges);
  return javaOutput.getFormatReplacements(tokenRangeSet);
}
 

private ImportOrderer(String text, ImmutableList<Tok> toks, Style style) {
  this.text = text;
  this.toks = toks;
  this.lineSeparator = Newlines.guessLineSeparator(text);
  if (style.equals(Style.GOOGLE)) {
    this.importComparator = GOOGLE_IMPORT_COMPARATOR;
    this.shouldInsertBlankLineFn = ImportOrderer::shouldInsertBlankLineGoogle;
  } else if (style.equals(Style.AOSP)) {
    this.importComparator = AOSP_IMPORT_COMPARATOR;
    this.shouldInsertBlankLineFn = ImportOrderer::shouldInsertBlankLineAosp;
  } else {
    throw new IllegalArgumentException("Unsupported code style: " + style);
  }
}
 

private ImportOrderer(String text, ImmutableList<Tok> toks) throws FormatterException {
    this.text = text;
    this.toks = toks;
    this.lineSeparator = Newlines.guessLineSeparator(text);
}
 

private ImportOrderer(String text, ImmutableList<Tok> toks) throws FormatterException {
    this.text = text;
    this.toks = toks;
    this.lineSeparator = Newlines.guessLineSeparator(text);
}