private static Language calcBaseLanguage(@NotNull VirtualFile file, @NotNull Project project) {
if (file instanceof LightVirtualFile) {
final Language language = ((LightVirtualFile) file).getLanguage();
if (language != null) {
return language;
}
}
FileType fileType = file.getFileType();
// Do not load content
if (fileType == UnknownFileType.INSTANCE) {
fileType = FileTypeRegistry.getInstance().detectFileTypeFromContent(file);
}
if (fileType.isBinary()) return Language.ANY;
if (isTooLarge(file)) return PlainTextLanguage.INSTANCE;
if (fileType instanceof LanguageFileType) {
return LanguageSubstitutors.INSTANCE.substituteLanguage(
((LanguageFileType) fileType).getLanguage(), file, project);
}
final ContentBasedFileSubstitutor[] processors =
Extensions.getExtensions(ContentBasedFileSubstitutor.EP_NAME);
for (ContentBasedFileSubstitutor processor : processors) {
Language language = processor.obtainLanguageForFile(file);
if (language != null) return language;
}
return PlainTextLanguage.INSTANCE;
}
protected boolean isIgnored() {
final VirtualFile file = getVirtualFile();
if (file instanceof LightVirtualFile) return false;
if (myExclusionManager != null && myExclusionManager.isExcluded(file)) return true;
return FileTypeRegistry.getInstance().isFileIgnored(file);
}
