@Override
public Change createChange(IProgressMonitor pm) throws CoreException, OperationCanceledException {
if (pm.isCanceled()) {
return null;
}
if (!getArguments().getUpdateReferences()) {
return null;
}
CompositeChange result = new CompositeChange(getName());
result.markAsSynthetic();
addManifestFileChanges(result);
// Update layout files; we don't just need to react to custom view
// changes, we need to update fragment references and even tool:context activity
// references
addLayoutFileChanges(mProject, result);
// Also update in dependent projects
ProjectState projectState = Sdk.getProjectState(mProject);
if (projectState != null) {
Collection<ProjectState> parentProjects = projectState.getFullParentProjects();
for (ProjectState parentProject : parentProjects) {
IProject project = parentProject.getProject();
addLayoutFileChanges(project, result);
}
}
return (result.getChildren().length == 0) ? null : result;
}
/**
* Merges the children of the given composite change into this change. This means the changes are
* removed from the given composite change and added to this change.
*
* @param change the change to merge
*/
public void merge(CompositeChange change) {
Change[] others = change.getChildren();
for (int i = 0; i < others.length; i++) {
Change other = others[i];
change.remove(other);
add(other);
}
}
public void test_toLTK_Change_CompositeChange_noFile() throws Exception {
Source source = new FileBasedSource(new File("no-such-file.dart"));
SourceChange sourceChangeA = new SourceChange("My change A", source);
SourceChange sourceChangeB = new SourceChange("My change B", source);
CompositeChange compositeChange =
new CompositeChange("My composite change", sourceChangeA, sourceChangeB);
// toLTK
org.eclipse.ltk.core.refactoring.Change ltkChange_ = ServiceUtils.toLTK(compositeChange);
org.eclipse.ltk.core.refactoring.CompositeChange ltkChange =
(org.eclipse.ltk.core.refactoring.CompositeChange) ltkChange_;
assertEquals("My composite change", ltkChange.getName());
org.eclipse.ltk.core.refactoring.Change[] ltkChanges = ltkChange.getChildren();
assertThat(ltkChanges).isEmpty();
}
public void test_toLTK_Change_CompositeChange() throws Exception {
Source source = createTestFileSource();
// fill SourceChange
SourceChange sourceChangeA = new SourceChange("My change A", source);
SourceChange sourceChangeB = new SourceChange("My change B", source);
CompositeChange compositeChange =
new CompositeChange("My composite change", sourceChangeA, sourceChangeB);
// toLTK
org.eclipse.ltk.core.refactoring.Change ltkChange_ = ServiceUtils.toLTK(compositeChange);
org.eclipse.ltk.core.refactoring.CompositeChange ltkChange =
(org.eclipse.ltk.core.refactoring.CompositeChange) ltkChange_;
assertEquals("My composite change", ltkChange.getName());
org.eclipse.ltk.core.refactoring.Change[] ltkChanges = ltkChange.getChildren();
assertThat(ltkChanges).hasSize(2);
}
@Override
void createChange(final IProgressMonitor pm, final CompositeChange rootChange) {
try {
pm.beginTask(UITexts.mkPointFreeDelegate_collectingChanges, 100);
if (change == null) {
throw new IllegalStateException();
}
// do not have the intermediate step
for (Change c : change.getChildren()) {
change.remove(c);
rootChange.add(c);
}
// rootChange.add( change );
} finally {
pm.done();
}
}
public void test_toLTK_Change_MergeCompositeChange_emptyPreview() throws Exception {
IFile testFile = testProject.setFileContent("test.dart", "012345");
Source source = createFileSource(testFile);
// fill SourceChange
SourceChange sourceChangeB = new SourceChange("My change B", source);
sourceChangeB.addEdit(new Edit(2, 0, "b"));
CompositeChange compositeChangeA = new CompositeChange("A");
CompositeChange compositeChangeB = new CompositeChange("B", sourceChangeB);
MergeCompositeChange mergeChange =
new MergeCompositeChange("My composite change", compositeChangeA, compositeChangeB);
// toLTK
org.eclipse.ltk.core.refactoring.Change ltkChange_ = ServiceUtils.toLTK(mergeChange);
org.eclipse.ltk.core.refactoring.CompositeChange ltkChange =
(org.eclipse.ltk.core.refactoring.CompositeChange) ltkChange_;
assertEquals("My composite change", ltkChange.getName());
org.eclipse.ltk.core.refactoring.Change[] ltkChanges = ltkChange.getChildren();
assertThat(ltkChanges).hasSize(1);
assertThat(ltkChanges[0]).isInstanceOf(CompilationUnitChange.class);
}
public void test_toLTK_Change_SourceChange_externalFile() throws Exception {
FileBasedSource source = new FileBasedSource(FileUtilities2.createFile("/some/path"));
// fill SourceChange
SourceChange sourceChange = new SourceChange("My change", source);
sourceChange.addEdit(new Edit(10, 1, "a"));
sourceChange.addEdit(new Edit(20, 2, "b"));
// no IFile for this Source, so no LTK change
{
org.eclipse.ltk.core.refactoring.Change ltkChange = ServiceUtils.toLTK(sourceChange);
assertNull(ltkChange);
}
// try as part of CompositeChange
{
CompositeChange compositeChange = new CompositeChange("My composite change", sourceChange);
org.eclipse.ltk.core.refactoring.CompositeChange ltkChange =
ServiceUtils.toLTK(compositeChange);
assertNotNull(ltkChange);
// wrong SourceChange was ignored
assertThat(ltkChange.getChildren()).isEmpty();
}
}
public void test_toLTK_Change_MergeCompositeChange() throws Exception {
IFile testFile = testProject.setFileContent("test.dart", "012345");
Source source = createFileSource(testFile);
// fill SourceChange
SourceChange sourceChangeA = new SourceChange("My change A", source);
SourceChange sourceChangeB = new SourceChange("My change B", source);
sourceChangeA.addEdit(new Edit(0, 0, "a"));
sourceChangeB.addEdit(new Edit(2, 0, "b"));
CompositeChange compositeChangeA = new CompositeChange("A", sourceChangeA);
CompositeChange compositeChangeB = new CompositeChange("B", sourceChangeB);
MergeCompositeChange mergeChange =
new MergeCompositeChange("My composite change", compositeChangeA, compositeChangeB);
// toLTK
org.eclipse.ltk.core.refactoring.Change ltkChange_ = ServiceUtils.toLTK(mergeChange);
org.eclipse.ltk.core.refactoring.CompositeChange ltkChange =
(org.eclipse.ltk.core.refactoring.CompositeChange) ltkChange_;
assertEquals("My composite change", ltkChange.getName());
org.eclipse.ltk.core.refactoring.Change[] ltkChanges = ltkChange.getChildren();
assertThat(ltkChanges).hasSize(2);
//
ltkChange.perform(NULL_PM);
String newContent = testProject.getFileString(testFile);
assertEquals("a01b2345", newContent);
}