private SearchResultGroup[] getReferences(IProgressMonitor pm, RefactoringStatus status)
throws CoreException {
String binaryRefsDescription =
Messages.format(
RefactoringCoreMessages.ReferencesInBinaryContext_ref_in_binaries_description,
BasicElementLabels.getJavaElementName(getCurrentElementName()));
ReferencesInBinaryContext binaryRefs = new ReferencesInBinaryContext(binaryRefsDescription);
SearchResultGroup[] result =
RefactoringSearchEngine.search(
createSearchPattern(),
createRefactoringScope(),
new CuCollectingSearchRequestor(binaryRefs),
pm,
status);
binaryRefs.addErrorIfNecessary(status);
return result;
}
@Override
protected RefactoringStatus doCheckFinalConditions(
IProgressMonitor pm, CheckConditionsContext context) throws CoreException {
try {
RefactoringStatus result = new RefactoringStatus();
pm.beginTask("", 9); // $NON-NLS-1$
// TODO workaround for https://bugs.eclipse.org/bugs/show_bug.cgi?id=40367
if (!Checks.isAvailable(fMethod)) {
result.addFatalError(
RefactoringCoreMessages.RenameMethodProcessor_is_binary,
JavaStatusContext.create(fMethod));
return result;
}
result.merge(Checks.checkIfCuBroken(fMethod));
if (result.hasFatalError()) return result;
pm.setTaskName(
RefactoringCoreMessages.RenameMethodRefactoring_taskName_checkingPreconditions);
result.merge(checkNewElementName(getNewElementName()));
if (result.hasFatalError()) return result;
boolean mustAnalyzeShadowing;
IMethod[] newNameMethods =
searchForDeclarationsOfClashingMethods(new SubProgressMonitor(pm, 1));
if (newNameMethods.length == 0) {
mustAnalyzeShadowing = false;
pm.worked(1);
} else {
IType[] outerTypes =
searchForOuterTypesOfReferences(newNameMethods, new SubProgressMonitor(pm, 1));
if (outerTypes.length > 0) {
// There exists a reference to a clashing method, where the reference is in a nested type.
// That nested type could be a type in a ripple method's hierarchy, which could
// cause the reference to bind to the new ripple method instead of to
// its old binding (a method of an enclosing scope).
// -> Getting *more* references than before -> Semantics not preserved.
// Examples: RenameVirtualMethodInClassTests#testFail39() and #testFail41()
// TODO: could pass declaringTypes to the RippleMethodFinder and check whether
// a hierarchy contains one of outerTypes (or an outer type of an outerType, recursively).
mustAnalyzeShadowing = true;
} else {
boolean hasOldRefsInInnerTypes = true;
// TODO: to implement this optimization:
// - move search for references to before this check.
// - collect references in inner types.
// - for each reference, check for all supertypes and their enclosing types
// (recursively), whether they declare a rippleMethod
if (hasOldRefsInInnerTypes) {
// There exists a reference to a ripple method in a nested type
// of a type in the hierarchy of any ripple method.
// When that reference is renamed, and one of the supertypes of the
// nested type declared a method matching the new name, then
// the renamed reference will bind to the method in its supertype,
// since inherited methods bind stronger than methods from enclosing scopes.
// Getting *less* references than before -> Semantics not preserved.
// Examples: RenamePrivateMethodTests#testFail2(), RenamePrivateMethodTests#testFail5()
mustAnalyzeShadowing = true;
} else {
mustAnalyzeShadowing = false;
}
}
}
String binaryRefsDescription =
Messages.format(
RefactoringCoreMessages.ReferencesInBinaryContext_ref_in_binaries_description,
BasicElementLabels.getJavaElementName(getCurrentElementName()));
ReferencesInBinaryContext binaryRefs = new ReferencesInBinaryContext(binaryRefsDescription);
initializeMethodsToRename(new SubProgressMonitor(pm, 1), binaryRefs);
pm.setTaskName(
RefactoringCoreMessages.RenameMethodRefactoring_taskName_searchingForReferences);
fOccurrences = getOccurrences(new SubProgressMonitor(pm, 3), result, binaryRefs);
binaryRefs.addErrorIfNecessary(result);
pm.setTaskName(
RefactoringCoreMessages.RenameMethodRefactoring_taskName_checkingPreconditions);
if (fUpdateReferences) result.merge(checkRelatedMethods());
result.merge(analyzeCompilationUnits()); // removes CUs with syntax errors
pm.worked(1);
if (result.hasFatalError()) return result;
createChanges(new SubProgressMonitor(pm, 1), result);
if (fUpdateReferences & mustAnalyzeShadowing)
result.merge(analyzeRenameChanges(new SubProgressMonitor(pm, 1)));
else pm.worked(1);
return result;
} finally {
pm.done();
}
}