private ICompilationUnit[] getDeclarationCUs() {
Set<ICompilationUnit> cus = new HashSet<>();
for (Iterator<IMethod> iter = fMethodsToRename.iterator(); iter.hasNext(); ) {
IMethod method = iter.next();
cus.add(method.getCompilationUnit());
}
return cus.toArray(new ICompilationUnit[cus.size()]);
}
private RefactoringStatus analyzeRenameChanges(IProgressMonitor pm) throws CoreException {
ICompilationUnit[] newDeclarationWCs = null;
try {
pm.beginTask("", 4); // $NON-NLS-1$
RefactoringStatus result = new RefactoringStatus();
ICompilationUnit[] declarationCUs = getDeclarationCUs();
newDeclarationWCs =
RenameAnalyzeUtil.createNewWorkingCopies(
declarationCUs, fChangeManager, fWorkingCopyOwner, new SubProgressMonitor(pm, 1));
IMethod[] wcOldMethods = new IMethod[fMethodsToRename.size()];
IMethod[] wcNewMethods = new IMethod[fMethodsToRename.size()];
int i = 0;
for (Iterator<IMethod> iter = fMethodsToRename.iterator(); iter.hasNext(); i++) {
IMethod method = iter.next();
ICompilationUnit newCu =
RenameAnalyzeUtil.findWorkingCopyForCu(newDeclarationWCs, method.getCompilationUnit());
IType typeWc =
(IType) JavaModelUtil.findInCompilationUnit(newCu, method.getDeclaringType());
if (typeWc == null) {
// should not happen
i--;
wcOldMethods =
CollectionsUtil.toArray(
Arrays.asList(wcOldMethods).subList(0, wcOldMethods.length - 1), IMethod.class);
wcNewMethods =
CollectionsUtil.toArray(
Arrays.asList(wcNewMethods).subList(0, wcNewMethods.length - 1), IMethod.class);
continue;
}
wcOldMethods[i] = getMethodInWorkingCopy(method, getCurrentElementName(), typeWc);
wcNewMethods[i] = getMethodInWorkingCopy(method, getNewElementName(), typeWc);
}
// SearchResultGroup[] newOccurrences= findNewOccurrences(newMethods, newDeclarationWCs, new
// SubProgressMonitor(pm, 3));
SearchResultGroup[] newOccurrences =
batchFindNewOccurrences(
wcNewMethods, wcOldMethods, newDeclarationWCs, new SubProgressMonitor(pm, 3), result);
result.merge(
RenameAnalyzeUtil.analyzeRenameChanges2(
fChangeManager, fOccurrences, newOccurrences, getNewElementName()));
return result;
} finally {
pm.done();
if (newDeclarationWCs != null) {
for (int i = 0; i < newDeclarationWCs.length; i++) {
newDeclarationWCs[i].discardWorkingCopy();
}
}
}
}
public RemoveDeprecatedQuickFixProposal(
int offset,
int length,
boolean missingEndQuote,
String className,
String methodName,
IMethod method) {
super(offset, length, missingEndQuote);
this.className = className;
this.methodName = methodName;
this.method = method;
this.cu = method.getCompilationUnit();
}
public void testParentResourceMapping() throws CoreException {
IWorkbenchPart part =
PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getActivePart();
IMethod m1 = type1.createMethod("public void m1() { }", null, true, null);
monitor.selectionChanged(part, new StructuredSelection(m1));
IInteractionElement m1Node =
ContextCore.getContextManager().getElement(m1.getHandleIdentifier());
assertTrue(m1Node.getInterest().isInteresting());
IResource containingResource =
ResourcesUiBridgePlugin.getDefault().getResourceForElement(m1Node, true);
assertEquals(m1.getCompilationUnit().getAdapter(IResource.class), containingResource);
}
/**
* Removes the current variable declaration from the AST and inserts it into the lowest possible
* scope where the variable is first used. Returns the modification to the AST within a Change
* object.
*/
private Change recordASTModifications() {
AST ast = compilationUnit.getAST();
ASTRewrite rewriter = ASTRewrite.create(ast);
// duplicate the original variable declaration in lower scope before getting rid of it
VariableDeclarationStatement oldDeclaration =
(VariableDeclarationStatement) variableVisitor.getDeclaration();
assert variableVisitor.getFirstAssignment() instanceof Assignment;
Assignment variableAssignment = (Assignment) variableVisitor.getFirstAssignment();
ASTNode newScopeParent = variableAssignment.getParent().getParent();
String codeString = oldDeclaration.toString();
ASTNode newDeclaration =
rewriter.createStringPlaceholder(
codeString.substring(0, codeString.length() - 1),
ASTNode.VARIABLE_DECLARATION_STATEMENT);
ListRewrite listRewrite = rewriter.getListRewrite(newScopeParent, Block.STATEMENTS_PROPERTY);
listRewrite.insertAt(newDeclaration, 0, null);
// get rid of the higher scope declaration
rewriter.remove(oldDeclaration, null);
ICompilationUnit iCompUnit = method.getCompilationUnit();
final String description = "ReduceScopeOfVariable";
final String comment = "ReduceScopeOfVariable does blah...";
// record the change
CompilationUnitChange change =
new CompilationUnitChange("Reduce scope of variable", iCompUnit) {
public ChangeDescriptor getDescriptor() {
Map<Object, Object> arguments = new HashMap<Object, Object>();
arguments.put("method", method);
arguments.put("var", varName);
return new RefactoringChangeDescriptor(
new ReduceScopeOfVariableDescriptor(
method.getJavaProject().getElementName(), description, comment, arguments));
}
};
try {
change.setEdit(rewriter.rewriteAST());
} catch (Exception e) {
}
return change;
}
@Override
public RefactoringStatus checkInitialConditions(IProgressMonitor pm) throws CoreException {
if (!fMethod.exists()) {
String message =
Messages.format(
RefactoringCoreMessages.RenameMethodRefactoring_deleted,
BasicElementLabels.getFileName(fMethod.getCompilationUnit()));
return RefactoringStatus.createFatalErrorStatus(message);
}
RefactoringStatus result = Checks.checkAvailability(fMethod);
if (result.hasFatalError()) return result;
result.merge(Checks.checkIfCuBroken(fMethod));
if (JdtFlags.isNative(fMethod))
result.addError(RefactoringCoreMessages.RenameMethodRefactoring_no_native);
return result;
}
private static SourceProvider resolveSourceProvider(
RefactoringStatus status, ITypeRoot typeRoot, ASTNode invocation) {
CompilationUnit root = (CompilationUnit) invocation.getRoot();
IMethodBinding methodBinding = Invocations.resolveBinding(invocation);
if (methodBinding == null) {
status.addFatalError(
RefactoringCoreMessages.InlineMethodRefactoring_error_noMethodDeclaration);
return null;
}
MethodDeclaration declaration = (MethodDeclaration) root.findDeclaringNode(methodBinding);
if (declaration != null) {
return new SourceProvider(typeRoot, declaration);
}
IMethod method = (IMethod) methodBinding.getJavaElement();
if (method != null) {
CompilationUnit methodDeclarationAstRoot;
ICompilationUnit methodCu = method.getCompilationUnit();
if (methodCu != null) {
methodDeclarationAstRoot = new RefactoringASTParser(AST.JLS3).parse(methodCu, true);
} else {
IClassFile classFile = method.getClassFile();
if (!JavaElementUtil.isSourceAvailable(classFile)) {
String methodLabel =
JavaElementLabels.getTextLabel(
method,
JavaElementLabels.M_FULLY_QUALIFIED | JavaElementLabels.M_PARAMETER_TYPES);
status.addFatalError(
Messages.format(
RefactoringCoreMessages.InlineMethodRefactoring_error_classFile, methodLabel));
return null;
}
methodDeclarationAstRoot = new RefactoringASTParser(AST.JLS3).parse(classFile, true);
}
ASTNode node =
methodDeclarationAstRoot.findDeclaringNode(methodBinding.getMethodDeclaration().getKey());
if (node instanceof MethodDeclaration) {
return new SourceProvider(methodDeclarationAstRoot.getTypeRoot(), (MethodDeclaration) node);
}
}
status.addFatalError(RefactoringCoreMessages.InlineMethodRefactoring_error_noMethodDeclaration);
return null;
}
/*
* Used from www.eclipse.org/articles/article.php?file=Article-Unleashing-the-Power-of-Refactoring/index.html
*/
@Override
public RefactoringStatus checkInitialConditions(IProgressMonitor pm)
throws CoreException, OperationCanceledException {
RefactoringStatus status = new RefactoringStatus();
try {
pm.beginTask("Checking preconditions...", 1);
if (method == null) {
status.merge(RefactoringStatus.createFatalErrorStatus("Method has not been specified."));
} else if (varName == null) {
status.merge(RefactoringStatus.createFatalErrorStatus("Variable has not been specified."));
} else if (!method.exists()) {
status.merge(RefactoringStatus.createFatalErrorStatus("Method does not exist."));
} else {
if (!method.isBinary() && !method.getCompilationUnit().isStructureKnown()) {
status.merge(
RefactoringStatus.createFatalErrorStatus(
"Compilation unit contains compile errors."));
}
}
} finally {
pm.done();
}
return status;
}
@Override
/**
* Checks the final conditions in order to perform the refactoring. Specifically, we check if the
* variable is used in only a single lower scope than it is declared in, and if this check fails
* for any reason, the appropriate error status is set.
*/
public RefactoringStatus checkFinalConditions(IProgressMonitor pm)
throws CoreException, OperationCanceledException {
RefactoringStatus status = new RefactoringStatus();
ICompilationUnit Unit = method.getCompilationUnit();
compilationUnit = parse(Unit, pm);
try {
pm.beginTask("Checking validity...", 1);
// Do the work to check the final conditions
variableVisitor = new LocalVarVisitor(this);
variableVisitor.visit(compilationUnit);
compilationUnit.accept(variableVisitor);
// Now check for any errors that may be present
ASTNode sp = variableVisitor.getScopeParent();
ASTNode lsp = variableVisitor.getLowerScopeParent();
if (sp == null) {
// the variable was never found
setRefactoringStatus(VARIABLE_NOT_FOUND);
} else if (lsp == null) {
setRefactoringStatus(NO_SCOPE_TO_REDUCE_TO);
}
if (refactoringStatus == VARIABLE_USED_IN_DECLARING_SCOPE) {
status.merge(
RefactoringStatus.createErrorStatus(
varName
+ " in method "
+ method.getElementName()
+ " is used in the same scope it is declared in."));
} else if (refactoringStatus == VARIABLE_IS_FIELD) {
status.merge(
RefactoringStatus.createErrorStatus(
varName + " is a field variable and" + " its scope cannot be reduced."));
} else if (refactoringStatus == NO_SCOPE_TO_REDUCE_TO) {
status.merge(
RefactoringStatus.createErrorStatus(
"No scope to possibly reduce "
+ varName
+ " in method "
+ method.getElementName()
+ " to."));
} else if (refactoringStatus == VARIABLE_USED_IN_MULTIPLE_LOWER_SCOPES) {
status.merge(
RefactoringStatus.createErrorStatus(
varName
+ " is used in multiple lower scopes"
+ " and cannot be reduced in method "
+ method.getElementName()));
} else if (refactoringStatus == VARIABLE_FIRST_INITIALIZED_IN_FOR_DECLARATION) {
status.merge(
RefactoringStatus.createErrorStatus(
varName
+ " is first initialized in a for loop"
+ " and cannot be reduced in method "
+ method.getElementName()));
} else if (refactoringStatus == VARIABLE_NOT_FOUND) {
status.merge(
RefactoringStatus.createErrorStatus(varName + " not found in method " + method));
}
} finally {
pm.done();
}
return status;
}
public IDocInfo getBasicDocInfo() {
try {
IMethod iMethod = (IMethod) tm;
ISourceRange javadocRange = iMethod.getJavadocRange();
if (javadocRange != null) {
String attachedJavadoc =
iMethod
.getCompilationUnit()
.getSource()
.substring(
javadocRange.getOffset(), javadocRange.getOffset() + javadocRange.getLength());
attachedJavadoc = attachedJavadoc.substring(3, attachedJavadoc.length() - 2);
StringReader rr = new StringReader(attachedJavadoc);
BufferedReader mm = new BufferedReader(rr);
final StringBuilder bld = new StringBuilder();
final HashMap<String, String> mmq = new HashMap<String, String>();
while (true) {
try {
String s = mm.readLine();
if (s == null) {
break;
}
int indexOf = s.indexOf('*');
if (indexOf != -1) {
s = s.substring(indexOf + 1);
}
s = s.trim();
if (s.startsWith("@")) { // $NON-NLS-1$
if (s.startsWith(PARAM)) {
s = s.substring(PARAM.length());
s = s.trim();
int p = s.indexOf(' ');
if (p != -1) {
String pName = s.substring(0, p).trim();
String pVal = s.substring(p).trim();
mmq.put(pName, pVal);
}
}
if (s.startsWith(RETURN)) {
s = s.substring(RETURN.length());
s = s.trim();
mmq.put(RETURN, s);
}
continue;
}
bld.append(s);
bld.append('\n');
} catch (IOException e) {
break;
}
}
return new IDocInfo() {
public String getDocumentation(String pName) {
return mmq.get(pName);
}
public String getDocumentation() {
return bld.toString().trim();
}
public String getReturnInfo() {
return mmq.get(RETURN);
}
};
}
return new IDocInfo() {
public String getReturnInfo() {
return ""; //$NON-NLS-1$
}
public String getDocumentation(String pName) {
return ""; //$NON-NLS-1$
}
public String getDocumentation() {
return ""; //$NON-NLS-1$
}
};
} catch (JavaModelException e) {
throw new IllegalStateException();
}
}
