com.intellij.psi.tree.IElementType#getLanguage ( )源码实例Demo

private boolean isComment(int offset) {
  final HighlighterIterator it = myEditor.getHighlighter().createIterator(offset);
  IElementType tokenType = it.getTokenType();
  Language language = tokenType.getLanguage();
  TokenSet comments = myComments.get(language);
  if (comments == null) {
    ParserDefinition definition = LanguageParserDefinitions.INSTANCE.forLanguage(language);
    if (definition != null) {
      comments = definition.getCommentTokens();
    }
    if (comments == null) {
      return false;
    }
    else {
      myComments.put(language, comments);
    }
  }
  return comments.contains(tokenType);
}
 

private boolean isComment(int offset) {
  final HighlighterIterator it = myEditor.getHighlighter().createIterator(offset);
  IElementType tokenType = it.getTokenType();
  Language language = tokenType.getLanguage();
  TokenSet comments = myComments.get(language);
  if (comments == null) {
    ParserDefinition definition = LanguageParserDefinitions.INSTANCE.forLanguage(language);
    if (definition != null) {
      comments = definition.getCommentTokens();
    }
    if (comments == null) {
      return false;
    }
    else {
      myComments.put(language, comments);
    }
  }
  return comments.contains(tokenType);
}
 

public static boolean isInComments(final IElementType tokenType, LanguageVersion languageVersion) {
  final Language language = tokenType.getLanguage();

  //for (CommentTokenSetProvider provider : CommentTokenSetProvider.EXTENSION.allForLanguage(language)) {
  //  if (provider.isInComments(tokenType)) {
  //    return true;
  //  }
  //}

  boolean inComments = false;
  final ParserDefinition parserDefinition = LanguageParserDefinitions.INSTANCE.forLanguage(language);

  if (parserDefinition != null) {
    final TokenSet commentTokens = parserDefinition.getCommentTokens(languageVersion);

    if (commentTokens.contains(tokenType)) {
      inComments = true;
    }
  }
  return inComments;
}
 

public static boolean isCommentToken(@Nonnull IElementType tokenType, @Nonnull LanguageVersion languageVersion) {
  final Language language = tokenType.getLanguage();
  if(language != languageVersion.getLanguage()) {
    return false;
  }

  final ParserDefinition parserDefinition = LanguageParserDefinitions.INSTANCE.forLanguage(language);

  if (parserDefinition != null) {
    final TokenSet commentTokens = parserDefinition.getCommentTokens(languageVersion);

    if (commentTokens.contains(tokenType)) {
      return true;
    }
  }
  return false;
}
 

private boolean isComment(int offset) {
  final HighlighterIterator it = myEditor.getHighlighter().createIterator(offset);
  IElementType tokenType = it.getTokenType();
  Language language = tokenType.getLanguage();
  TokenSet comments = myComments.get(language);
  if (comments == null) {
    ParserDefinition definition = LanguageParserDefinitions.INSTANCE.forLanguage(language);
    if (definition != null) {
      comments = definition.getCommentTokens(LanguageVersionUtil.findLanguageVersion(language, myFile));
    }
    if (comments == null) {
      return false;
    }
    else {
      myComments.put(language, comments);
    }
  }
  return comments.contains(tokenType);
}
 

public static void initState(ErrorState state, PsiBuilder builder, IElementType root, TokenSet[] extendsSets) {
	state.extendsSets = extendsSets;
	PsiFile file = builder.getUserDataUnprotected(FileContextUtil.CONTAINING_FILE_KEY);
	state.completionState = file == null? null: file.getUserData(COMPLETION_STATE_KEY);
	Language language = file == null? root.getLanguage() : file.getLanguage();
	state.caseSensitive = language.isCaseSensitive();
	PairedBraceMatcher matcher = LanguageBraceMatching.INSTANCE.forLanguage(language);
	state.braces = matcher == null ? null : matcher.getPairs();
	if (state.braces != null && state.braces.length == 0) state.braces = null;
}
 

public static void initState(ErrorState state, PsiBuilder builder, IElementType root, TokenSet[] extendsSets) {
    state.extendsSets = extendsSets;
    PsiFile file = builder.getUserDataUnprotected(FileContextUtil.CONTAINING_FILE_KEY);
    state.completionState = file == null? null: file.getUserData(COMPLETION_STATE_KEY);
    Language language = file == null? root.getLanguage() : file.getLanguage();
    state.caseSensitive = language.isCaseSensitive();
    PairedBraceMatcher matcher = LanguageBraceMatching.INSTANCE.forLanguage(language);
    state.braces = matcher == null ? null : matcher.getPairs();
    if (state.braces != null && state.braces.length == 0) state.braces = null;
}
 

private boolean isCommentToken(Map<Language, LanguageVersion> cache, IElementType token) {
  Language language = token.getLanguage();
  LanguageVersion languageVersion = cache.get(language);
  if (languageVersion == null) {
    cache.put(language, languageVersion = LanguageVersionUtil.findLanguageVersion(language, myProject, myFile));
  }
  return CommentUtilCore.isCommentToken(token, languageVersion);
}
 

private static boolean distinctTokens(@Nullable IElementType token1, @Nullable IElementType token2) {
  if (token1 == token2) return false;
  if (token1 == null || token2 == null) return true;
  if (StringEscapesTokenTypes.STRING_LITERAL_ESCAPES.contains(token1) || StringEscapesTokenTypes.STRING_LITERAL_ESCAPES.contains(token2)) return false;
  if (token1 != TokenType.WHITE_SPACE && token2 != TokenType.WHITE_SPACE && !token1.getLanguage().is(token2.getLanguage())) return true;
  Language language = token1.getLanguage();
  if (language == Language.ANY) language = token2.getLanguage();
  BidiRegionsSeparator separator = LanguageBidiRegionsSeparator.INSTANCE.forLanguage(language);
  return separator.createBorderBetweenTokens(token1, token2);
}
 

public static void initState(ErrorState state, PsiBuilder builder, IElementType root, TokenSet[] extendsSets) {
  state.extendsSets = extendsSets;
  PsiFile file = builder.getUserData(FileContextUtil.CONTAINING_FILE_KEY);
  state.completionState = file == null? null: file.getUserData(COMPLETION_STATE_KEY);
  Language language = file == null? root.getLanguage() : file.getLanguage();
  state.caseSensitive = language.isCaseSensitive();
  PairedBraceMatcher matcher = LanguageBraceMatching.INSTANCE.forLanguage(language);
  state.braces = matcher == null ? null : matcher.getPairs();
  if (state.braces != null && state.braces.length == 0) state.braces = null;
}
 

private static void initState(IElementType root, PsiBuilder builder, ErrorState state) {
    PsiFile file = builder.getUserDataUnprotected(FileContextUtil.CONTAINING_FILE_KEY);
    state.completionState = file == null? null: file.getUserData(COMPLETION_STATE_KEY);
    Language language = file == null? root.getLanguage() : file.getLanguage();
    state.caseSensitive = language.isCaseSensitive();
    ParserDefinition parserDefinition = LanguageParserDefinitions.INSTANCE.forLanguage(language);
    if (parserDefinition != null) {
        state.commentTokens = parserDefinition.getCommentTokens();
        state.whitespaceTokens = parserDefinition.getWhitespaceTokens();
    }
    PairedBraceMatcher matcher = LanguageBraceMatching.INSTANCE.forLanguage(language);
    state.braces = matcher == null ? null : matcher.getPairs();
    if (state.braces != null && state.braces.length == 0) state.braces = null;
}
 

public TokenWrapper(IElementType delegate, CharSequence value) {
  super("Wrapper", delegate.getLanguage(), false);
  myDelegate = delegate;
  myValue = value;
}
 

private static Language getBraceType(HighlighterIterator iterator) {
  final IElementType type = iterator.getTokenType();
  return type.getLanguage();
}