private static int addToUsages(
@NotNull Document document,
@NotNull Processor<UsageInfo> consumer,
@NotNull FindModel findModel,
@NotNull final PsiFile psiFile,
@NotNull int[] offsetRef,
int maxUsages) {
int count = 0;
CharSequence text = document.getCharsSequence();
int textLength = document.getTextLength();
int offset = offsetRef[0];
Project project = psiFile.getProject();
FindManager findManager = FindManager.getInstance(project);
while (offset < textLength) {
FindResult result = findManager.findString(text, offset, findModel, psiFile.getVirtualFile());
if (!result.isStringFound()) break;
final SearchScope customScope = findModel.getCustomScope();
if (customScope instanceof LocalSearchScope) {
final TextRange range = new TextRange(result.getStartOffset(), result.getEndOffset());
if (!((LocalSearchScope) customScope).containsRange(psiFile, range)) break;
}
UsageInfo info = new FindResultUsageInfo(findManager, psiFile, offset, findModel, result);
if (!consumer.process(info)) {
throw new ProcessCanceledException();
}
count++;
final int prevOffset = offset;
offset = result.getEndOffset();
if (prevOffset == offset) {
// for regular expr the size of the match could be zero -> could be infinite loop in finding
// usages!
++offset;
}
if (maxUsages > 0 && count >= maxUsages) {
break;
}
}
offsetRef[0] = offset;
return count;
}
@NotNull
static SearchScope getScopeFromModel(@NotNull Project project, @NotNull FindModel findModel) {
SearchScope customScope = findModel.getCustomScope();
VirtualFile directory = getDirectory(findModel);
Module module =
findModel.getModuleName() == null
? null
: ModuleManager.getInstance(project).findModuleByName(findModel.getModuleName());
return findModel.isCustomScope() && customScope != null
? customScope.intersectWith(GlobalSearchScope.allScope(project))
:
// we don't have to check for myProjectFileIndex.isExcluded(file) here like
// FindInProjectTask.collectFilesInScope() does
// because all found usages are guaranteed to be not in excluded dir
directory != null
? forDirectory(project, findModel.isWithSubdirectories(), directory)
: module != null
? module.getModuleContentScope()
: findModel.isProjectScope()
? ProjectScope.getContentScope(project)
: GlobalSearchScope.allScope(project);
}