Java Code Examples for org.eclipse.jdt.core.search.SearchMatch#getLength()

private void addAccessorOccurrences(IProgressMonitor pm, IMethod accessor, String editName, String newAccessorName, RefactoringStatus status) throws CoreException {
	Assert.isTrue(accessor.exists());

	IJavaSearchScope scope= RefactoringScopeFactory.create(accessor);
	SearchPattern pattern= SearchPattern.createPattern(accessor, IJavaSearchConstants.ALL_OCCURRENCES, SearchUtils.GENERICS_AGNOSTIC_MATCH_RULE);
	SearchResultGroup[] groupedResults= RefactoringSearchEngine.search(
		pattern, scope, new MethodOccurenceCollector(accessor.getElementName()), pm, status);

	for (int i= 0; i < groupedResults.length; i++) {
		ICompilationUnit cu= groupedResults[i].getCompilationUnit();
		if (cu == null) {
			continue;
		}
		SearchMatch[] results= groupedResults[i].getSearchResults();
		for (int j= 0; j < results.length; j++){
			SearchMatch searchResult= results[j];
			TextEdit edit= new ReplaceEdit(searchResult.getOffset(), searchResult.getLength(), newAccessorName);
			addTextEdit(fChangeManager.get(cu), editName, edit);
		}
	}
}
 

private void addReferenceUpdates(TextChangeManager manager, IProgressMonitor pm) {
	pm.beginTask("", fReferences.length); //$NON-NLS-1$
	for (int i= 0; i < fReferences.length; i++){
		ICompilationUnit cu= fReferences[i].getCompilationUnit();
		if (cu == null)
			continue;

		String name= RefactoringCoreMessages.RenameTypeRefactoring_update_reference;
		SearchMatch[] results= fReferences[i].getSearchResults();

		for (int j= 0; j < results.length; j++){
			SearchMatch match= results[j];
			ReplaceEdit replaceEdit= new ReplaceEdit(match.getOffset(), match.getLength(), getNewElementName());
			TextChangeCompatibility.addTextEdit(manager.get(cu), name, replaceEdit, CATEGORY_TYPE_RENAME);
		}
		pm.worked(1);
	}
}
 

private void addReferenceUpdates(TextChangeManager manager, IProgressMonitor pm) {
	pm.beginTask("", fReferences.length); //$NON-NLS-1$
	for (int i = 0; i < fReferences.length; i++) {
		ICompilationUnit cu = fReferences[i].getCompilationUnit();
		if (cu == null) {
			continue;
		}

		String name = RefactoringCoreMessages.RenameTypeRefactoring_update_reference;
		SearchMatch[] results = fReferences[i].getSearchResults();

		for (int j = 0; j < results.length; j++) {
			SearchMatch match = results[j];
			ReplaceEdit replaceEdit = new ReplaceEdit(match.getOffset(), match.getLength(), getNewElementName());
			TextChangeCompatibility.addTextEdit(manager.get(cu), name, replaceEdit, CATEGORY_TYPE_RENAME);
		}
		pm.worked(1);
	}
}
 

private void addAccessorOccurrences(IProgressMonitor pm, IMethod accessor, String editName, String newAccessorName, RefactoringStatus status) throws CoreException {
	Assert.isTrue(accessor.exists());

	IJavaSearchScope scope= RefactoringScopeFactory.create(accessor);
	SearchPattern pattern= SearchPattern.createPattern(accessor, IJavaSearchConstants.ALL_OCCURRENCES, SearchUtils.GENERICS_AGNOSTIC_MATCH_RULE);
	SearchResultGroup[] groupedResults= RefactoringSearchEngine.search(
		pattern, scope, new MethodOccurenceCollector(accessor.getElementName()), pm, status);

	for (int i= 0; i < groupedResults.length; i++) {
		ICompilationUnit cu= groupedResults[i].getCompilationUnit();
		if (cu == null)
			continue;
		SearchMatch[] results= groupedResults[i].getSearchResults();
		for (int j= 0; j < results.length; j++){
			SearchMatch searchResult= results[j];
			TextEdit edit= new ReplaceEdit(searchResult.getOffset(), searchResult.getLength(), newAccessorName);
			addTextEdit(fChangeManager.get(cu), editName, edit);
		}
	}
}
 

@Override
public void acceptSearchMatch(SearchMatch match) throws CoreException {
	if (filterMatch(match))
		return;

	/*
	 * Processing is done in collector to reuse the buffer which was
	 * already required by the search engine to locate the matches.
	 */
	// [start, end[ include qualification.
	IJavaElement element= SearchUtils.getEnclosingJavaElement(match);
	int accuracy= match.getAccuracy();
	int start= match.getOffset();
	int length= match.getLength();
	boolean insideDocComment= match.isInsideDocComment();
	IResource res= match.getResource();
	if (element.getAncestor(IJavaElement.IMPORT_DECLARATION) != null) {
		collectMatch(TypeReference.createImportReference(element, accuracy, start, length, insideDocComment, res));
	} else {
		ICompilationUnit unit= (ICompilationUnit) element.getAncestor(IJavaElement.COMPILATION_UNIT);
		if (unit != null) {
			IBuffer buffer= unit.getBuffer();
			String matchText= buffer.getText(start, length);
			if (fSource.isDefaultPackage()) {
				collectMatch(TypeReference.createSimpleReference(element, accuracy, start, length, insideDocComment, res, matchText));
			} else {
				// assert: matchText doesn't start nor end with comment
				int simpleNameStart= getLastSimpleNameStart(matchText);
				if (simpleNameStart != 0) {
					collectMatch(TypeReference.createQualifiedReference(element, accuracy, start, length, insideDocComment, res, start + simpleNameStart));
				} else {
					collectMatch(TypeReference.createSimpleReference(element, accuracy, start, length, insideDocComment, res, matchText));
				}
			}
		}
	}
}
 

private static void addShadowsError(ICompilationUnit cu, SearchMatch oldMatch, RefactoringStatus result) {
	// Old match not found in new matches -> reference has been shadowed

	//TODO: should not have to filter declarations:
	if (oldMatch instanceof MethodDeclarationMatch || oldMatch instanceof FieldDeclarationMatch)
		return;
	ISourceRange range= new SourceRange(oldMatch.getOffset(), oldMatch.getLength());
	RefactoringStatusContext context= JavaStatusContext.create(cu, range);
	String message= Messages.format(RefactoringCoreMessages.RenameAnalyzeUtil_shadows, BasicElementLabels.getFileName(cu));
	result.addError(message, context);
}
 

protected final ReplaceEdit createReplaceEdit(SearchMatch searchResult, ICompilationUnit cu) {
	if (searchResult.isImplicit()) { // handle Annotation Element references, see bug 94062
		StringBuffer sb= new StringBuffer(getNewElementName());
		if (JavaCore.INSERT.equals(cu.getJavaProject().getOption(DefaultCodeFormatterConstants.FORMATTER_INSERT_SPACE_BEFORE_ASSIGNMENT_OPERATOR, true)))
			sb.append(' ');
		sb.append('=');
		if (JavaCore.INSERT.equals(cu.getJavaProject().getOption(DefaultCodeFormatterConstants.FORMATTER_INSERT_SPACE_AFTER_ASSIGNMENT_OPERATOR, true)))
			sb.append(' ');
		return new ReplaceEdit(searchResult.getOffset(), 0, sb.toString());
	} else {
		return new ReplaceEdit(searchResult.getOffset(), searchResult.getLength(), getNewElementName());
	}
}
 

@Override
public void acceptSearchMatch(SearchMatch match) throws CoreException {
	if (filterMatch(match)) {
		return;
	}

	/*
	 * Processing is done in collector to reuse the buffer which was
	 * already required by the search engine to locate the matches.
	 */
	// [start, end[ include qualification.
	IJavaElement element = SearchUtils.getEnclosingJavaElement(match);
	int accuracy = match.getAccuracy();
	int start = match.getOffset();
	int length = match.getLength();
	boolean insideDocComment = match.isInsideDocComment();
	IResource res = match.getResource();
	if (element.getAncestor(IJavaElement.IMPORT_DECLARATION) != null) {
		collectMatch(TypeReference.createImportReference(element, accuracy, start, length, insideDocComment, res));
	} else {
		ICompilationUnit unit = (ICompilationUnit) element.getAncestor(IJavaElement.COMPILATION_UNIT);
		if (unit != null) {
			IBuffer buffer = unit.getBuffer();
			String matchText = buffer.getText(start, length);
			if (fSource.isDefaultPackage()) {
				collectMatch(TypeReference.createSimpleReference(element, accuracy, start, length, insideDocComment, res, matchText));
			} else {
				// assert: matchText doesn't start nor end with comment
				int simpleNameStart = getLastSimpleNameStart(matchText);
				if (simpleNameStart != 0) {
					collectMatch(TypeReference.createQualifiedReference(element, accuracy, start, length, insideDocComment, res, start + simpleNameStart));
				} else {
					collectMatch(TypeReference.createSimpleReference(element, accuracy, start, length, insideDocComment, res, matchText));
				}
			}
		}
	}
}
 

private static void addShadowsError(ICompilationUnit cu, SearchMatch oldMatch, RefactoringStatus result) {
	// Old match not found in new matches -> reference has been shadowed

	//TODO: should not have to filter declarations:
	if (oldMatch instanceof MethodDeclarationMatch || oldMatch instanceof FieldDeclarationMatch) {
		return;
	}
	ISourceRange range= new SourceRange(oldMatch.getOffset(), oldMatch.getLength());
	RefactoringStatusContext context= JavaStatusContext.create(cu, range);
	String message= Messages.format(RefactoringCoreMessages.RenameAnalyzeUtil_shadows, BasicElementLabels.getFileName(cu));
	result.addError(message, context);
}
 

protected final ReplaceEdit createReplaceEdit(SearchMatch searchResult, ICompilationUnit cu) {
	if (searchResult.isImplicit()) { // handle Annotation Element references, see bug 94062
		StringBuffer sb= new StringBuffer(getNewElementName());
		if (JavaCore.INSERT.equals(cu.getJavaProject().getOption(DefaultCodeFormatterConstants.FORMATTER_INSERT_SPACE_BEFORE_ASSIGNMENT_OPERATOR, true))) {
			sb.append(' ');
		}
		sb.append('=');
		if (JavaCore.INSERT.equals(cu.getJavaProject().getOption(DefaultCodeFormatterConstants.FORMATTER_INSERT_SPACE_AFTER_ASSIGNMENT_OPERATOR, true))) {
			sb.append(' ');
		}
		return new ReplaceEdit(searchResult.getOffset(), 0, sb.toString());
	} else {
		return new ReplaceEdit(searchResult.getOffset(), searchResult.getLength(), getNewElementName());
	}
}
 

private TextEdit createTextChange(SearchMatch searchResult) {
	return new ReplaceEdit(searchResult.getOffset(), searchResult.getLength(), getNewPackageName());
}
 

public SearchMatch acceptSearchMatch2(ICompilationUnit unit, SearchMatch match) throws CoreException {
	int start= match.getOffset();
	int length= match.getLength();

	//unqualified:
	String matchText= unit.getBuffer().getText(start, length);
	if (fOldName.equals(matchText)) {
		return match;
	}

	//(partially) qualified:
	if (fOldQualifiedName.endsWith(matchText)) {
		//e.g. rename B and p.A.B ends with match A.B
		int simpleNameLenght= fOldName.length();
		match.setOffset(start + length - simpleNameLenght);
		match.setLength(simpleNameLenght);
		return match;
	}

	//Not a standard reference -- use scanner to find last identifier token:
	IScanner scanner= getScanner(unit);
	scanner.setSource(matchText.toCharArray());
	int simpleNameStart= -1;
	int simpleNameEnd= -1;
	try {
		int token = scanner.getNextToken();
		while (token != ITerminalSymbols.TokenNameEOF) {
			if (token == ITerminalSymbols.TokenNameIdentifier) { // type reference can occur in module-info.java and collide with a restricted keyword.
				simpleNameStart= scanner.getCurrentTokenStartPosition();
				simpleNameEnd= scanner.getCurrentTokenEndPosition();
			}
			token = scanner.getNextToken();
		}
	} catch (InvalidInputException e){
		//ignore
	}
	if (simpleNameStart != -1) {
		match.setOffset(start + simpleNameStart);
		match.setLength(simpleNameEnd + 1 - simpleNameStart);
	}
	return match;
}
 

private TextEdit createTextChange(SearchMatch match) {
	return new ReplaceEdit(match.getOffset(), match.getLength(), getNewElementName());
}
 

@Override
public void acceptSearchMatch(ICompilationUnit unit, SearchMatch match) throws CoreException {
	if (match instanceof MethodReferenceMatch
			&& ((MethodReferenceMatch) match).isSuperInvocation()
			&& match.getAccuracy() == SearchMatch.A_INACCURATE) {
		return; // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=156491
	}

	if (match.isImplicit()) { // see bug 94062
		collectMatch(match);
		return;
	}

	int start= match.getOffset();
	int length= match.getLength();
	String matchText= unit.getBuffer().getText(start, length);

	//direct match:
	if (fName.equals(matchText)) {
		collectMatch(match);
		return;
	}

	// lambda expression
	if (match instanceof MethodDeclarationMatch
			&& match.getElement() instanceof IMethod
			&& ((IMethod) match.getElement()).isLambdaMethod()) {
		// don't touch the lambda
		return;
	}

	//Not a standard reference -- use scanner to find last identifier token before left parenthesis:
	IScanner scanner= getScanner(unit);
	scanner.setSource(matchText.toCharArray());
	int simpleNameStart= -1;
	int simpleNameEnd= -1;
	try {
		int token = scanner.getNextToken();
		while (token != ITerminalSymbols.TokenNameEOF && token != ITerminalSymbols.TokenNameLPAREN) { // reference in code includes arguments in parentheses
			if (token == ITerminalSymbols.TokenNameIdentifier) {
				simpleNameStart= scanner.getCurrentTokenStartPosition();
				simpleNameEnd= scanner.getCurrentTokenEndPosition();
			}
			token = scanner.getNextToken();
		}
	} catch (InvalidInputException e){
		//ignore
	}
	if (simpleNameStart != -1) {
		match.setOffset(start + simpleNameStart);
		match.setLength(simpleNameEnd + 1 - simpleNameStart);
	}
	collectMatch(match);
}
 

private static IRegion createTextRange(SearchMatch searchResult) {
	return new Region(searchResult.getOffset(), searchResult.getLength());
}
 

private static IRegion createTextRange(SearchMatch searchResult) {
	return new Region(searchResult.getOffset(), searchResult.getLength());
}
 

@Override
public void acceptSearchMatch(ICompilationUnit unit, SearchMatch match) throws CoreException {
	if (match instanceof MethodReferenceMatch
			&& ((MethodReferenceMatch) match).isSuperInvocation()
			&& match.getAccuracy() == SearchMatch.A_INACCURATE) {
		return; // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=156491
	}

	if (match.isImplicit()) { // see bug 94062
		collectMatch(match);
		return;
	}

	int start= match.getOffset();
	int length= match.getLength();
	String matchText= unit.getBuffer().getText(start, length);

	//direct match:
	if (fName.equals(matchText)) {
		collectMatch(match);
		return;
	}

	// lambda expression
	if (match instanceof MethodDeclarationMatch
			&& match.getElement() instanceof IMethod
			&& ((IMethod) match.getElement()).isLambdaMethod()) {
		// don't touch the lambda
		return;
	}

	//Not a standard reference -- use scanner to find last identifier token before left parenthesis:
	IScanner scanner= getScanner(unit);
	scanner.setSource(matchText.toCharArray());
	int simpleNameStart= -1;
	int simpleNameEnd= -1;
	try {
		int token = scanner.getNextToken();
		while (token != ITerminalSymbols.TokenNameEOF && token != ITerminalSymbols.TokenNameLPAREN) { // reference in code includes arguments in parentheses
			if (token == InternalTokenNameIdentifier) {
				simpleNameStart= scanner.getCurrentTokenStartPosition();
				simpleNameEnd= scanner.getCurrentTokenEndPosition();
			}
			token = scanner.getNextToken();
		}
	} catch (InvalidInputException e){
		//ignore
	}
	if (simpleNameStart != -1) {
		match.setOffset(start + simpleNameStart);
		match.setLength(simpleNameEnd + 1 - simpleNameStart);
	}
	collectMatch(match);
}
 

public SearchMatch acceptSearchMatch2(ICompilationUnit unit, SearchMatch match) throws CoreException {
	int start= match.getOffset();
	int length= match.getLength();

	//unqualified:
	String matchText= unit.getBuffer().getText(start, length);
	if (fOldName.equals(matchText)) {
		return match;
	}

	//(partially) qualified:
	if (fOldQualifiedName.endsWith(matchText)) {
		//e.g. rename B and p.A.B ends with match A.B
		int simpleNameLenght= fOldName.length();
		match.setOffset(start + length - simpleNameLenght);
		match.setLength(simpleNameLenght);
		return match;
	}

	//Not a standard reference -- use scanner to find last identifier token:
	IScanner scanner= getScanner(unit);
	scanner.setSource(matchText.toCharArray());
	int simpleNameStart= -1;
	int simpleNameEnd= -1;
	try {
		int token = scanner.getNextToken();
		while (token != ITerminalSymbols.TokenNameEOF) {
			if (token == ITerminalSymbols.TokenNameIdentifier) {
				simpleNameStart= scanner.getCurrentTokenStartPosition();
				simpleNameEnd= scanner.getCurrentTokenEndPosition();
			}
			token = scanner.getNextToken();
		}
	} catch (InvalidInputException e){
		//ignore
	}
	if (simpleNameStart != -1) {
		match.setOffset(start + simpleNameStart);
		match.setLength(simpleNameEnd + 1 - simpleNameStart);
	}
	return match;
}
 

private TextEdit createTextChange(SearchMatch searchResult) {
	return new ReplaceEdit(searchResult.getOffset(), searchResult.getLength(), getNewPackageName());
}
 

private TextEdit createTextChange(SearchMatch match) {
	return new ReplaceEdit(match.getOffset(), match.getLength(), getNewElementName());
}