Examples with LexerBasedIdIndexer com.intellij.psi.impl.cache.impl.id.LexerBasedIdIndexer used on opensource projects

Example 1 with LexerBasedIdIndexer

use of com.intellij.psi.impl.cache.impl.id.LexerBasedIdIndexer in project intellij-community by JetBrains.

the class BaseFilterLexerUtil method scanContent.

public static ScanContent scanContent(FileContent content, IdAndToDoScannerBasedOnFilterLexer indexer) {
    ScanContent data = content.getUserData(scanContentKey);
    if (data != null) {
        content.putUserData(scanContentKey, null);
        return data;
    }
    // same as TodoIndex.getFilter().isAcceptable
    final boolean needTodo = content.getFile().isInLocalFileSystem();
    final boolean needIdIndex = IdTableBuilding.getFileTypeIndexer(content.getFileType()) instanceof LexerBasedIdIndexer;
    final IdDataConsumer consumer = needIdIndex ? new IdDataConsumer() : null;
    final OccurrenceConsumer todoOccurrenceConsumer = new OccurrenceConsumer(consumer, needTodo);
    final Lexer filterLexer = indexer.createLexer(todoOccurrenceConsumer);
    filterLexer.start(content.getContentAsText());
    while (filterLexer.getTokenType() != null) filterLexer.advance();
    Map<TodoIndexEntry, Integer> todoMap = null;
    if (needTodo) {
        for (IndexPattern indexPattern : IndexPatternUtil.getIndexPatterns()) {
            final int count = todoOccurrenceConsumer.getOccurrenceCount(indexPattern);
            if (count > 0) {
                if (todoMap == null)
                    todoMap = new THashMap<>();
                todoMap.put(new TodoIndexEntry(indexPattern.getPatternString(), indexPattern.isCaseSensitive()), count);
            }
        }
    }
    data = new ScanContent(consumer != null ? consumer.getResult() : Collections.<IdIndexEntry, Integer>emptyMap(), todoMap != null ? todoMap : Collections.<TodoIndexEntry, Integer>emptyMap());
    if (needIdIndex && needTodo)
        content.putUserData(scanContentKey, data);
    return data;
}