Java Code Examples for org.eclipse.ltk.core.refactoring.TextChange#getPreviewContent()

/**
 * This method analyzes a set of local variable renames inside one cu. It checks whether
 * any new compile errors have been introduced by the rename(s) and whether the correct
 * node(s) has/have been renamed.
 *
 * @param analyzePackages the LocalAnalyzePackages containing the information about the local renames
 * @param cuChange the TextChange containing all local variable changes to be applied.
 * @param oldCUNode the fully (incl. bindings) resolved AST node of the original compilation unit
 * @param recovery whether statements and bindings recovery should be performed when parsing the changed CU
 * @return a RefactoringStatus containing errors if compile errors or wrongly renamed nodes are found
 * @throws CoreException thrown if there was an error greating the preview content of the change
 */
public static RefactoringStatus analyzeLocalRenames(LocalAnalyzePackage[] analyzePackages, TextChange cuChange, CompilationUnit oldCUNode, boolean recovery) throws CoreException {

	RefactoringStatus result= new RefactoringStatus();
	ICompilationUnit compilationUnit= (ICompilationUnit) oldCUNode.getJavaElement();

	String newCuSource= cuChange.getPreviewContent(new NullProgressMonitor());
	CompilationUnit newCUNode= new RefactoringASTParser(IASTSharedValues.SHARED_AST_LEVEL).parse(newCuSource, compilationUnit, true, recovery, null);

	result.merge(analyzeCompileErrors(newCuSource, newCUNode, oldCUNode));
	if (result.hasError()) {
		return result;
	}

	for (int i= 0; i < analyzePackages.length; i++) {
		ASTNode enclosing= getEnclosingBlockOrMethodOrLambda(analyzePackages[i].fDeclarationEdit, cuChange, newCUNode);

		// get new declaration
		IRegion newRegion= RefactoringAnalyzeUtil.getNewTextRange(analyzePackages[i].fDeclarationEdit, cuChange);
		ASTNode newDeclaration= NodeFinder.perform(newCUNode, newRegion.getOffset(), newRegion.getLength());
		Assert.isTrue(newDeclaration instanceof Name);

		VariableDeclaration declaration= getVariableDeclaration((Name) newDeclaration);
		Assert.isNotNull(declaration);

		SimpleName[] problemNodes= ProblemNodeFinder.getProblemNodes(enclosing, declaration, analyzePackages[i].fOccurenceEdits, cuChange);
		result.merge(RefactoringAnalyzeUtil.reportProblemNodes(newCuSource, problemNodes));
	}
	return result;
}
 

private RefactoringStatus checkCompilationofDeclaringCu() throws CoreException {
	ICompilationUnit cu= getCu();
	TextChange change= fChangeManager.get(cu);
	String newCuSource= change.getPreviewContent(new NullProgressMonitor());
	CompilationUnit newCUNode= new RefactoringASTParser(ASTProvider.SHARED_AST_LEVEL).parse(newCuSource, cu, true, false, null);
	IProblem[] problems= RefactoringAnalyzeUtil.getIntroducedCompileProblems(newCUNode, fBaseCuRewrite.getRoot());
	RefactoringStatus result= new RefactoringStatus();
	for (int i= 0; i < problems.length; i++) {
		IProblem problem= problems[i];
		if (shouldReport(problem, newCUNode))
			result.addEntry(new RefactoringStatusEntry((problem.isError() ? RefactoringStatus.ERROR : RefactoringStatus.WARNING), problem.getMessage(), new JavaStringStatusContext(newCuSource, SourceRangeFactory.create(problem))));
	}
	return result;
}
 

/**
 * This method analyzes a set of local variable renames inside one cu. It checks whether
 * any new compile errors have been introduced by the rename(s) and whether the correct
 * node(s) has/have been renamed.
 *
 * @param analyzePackages the LocalAnalyzePackages containing the information about the local renames
 * @param cuChange the TextChange containing all local variable changes to be applied.
 * @param oldCUNode the fully (incl. bindings) resolved AST node of the original compilation unit
 * @param recovery whether statements and bindings recovery should be performed when parsing the changed CU
 * @return a RefactoringStatus containing errors if compile errors or wrongly renamed nodes are found
 * @throws CoreException thrown if there was an error greating the preview content of the change
 */
public static RefactoringStatus analyzeLocalRenames(LocalAnalyzePackage[] analyzePackages, TextChange cuChange, CompilationUnit oldCUNode, boolean recovery) throws CoreException {

	RefactoringStatus result= new RefactoringStatus();
	ICompilationUnit compilationUnit= (ICompilationUnit) oldCUNode.getJavaElement();

	String newCuSource= cuChange.getPreviewContent(new NullProgressMonitor());
	CompilationUnit newCUNode= new RefactoringASTParser(ASTProvider.SHARED_AST_LEVEL).parse(newCuSource, compilationUnit, true, recovery, null);

	result.merge(analyzeCompileErrors(newCuSource, newCUNode, oldCUNode));
	if (result.hasError())
		return result;

	for (int i= 0; i < analyzePackages.length; i++) {
		ASTNode enclosing= getEnclosingBlockOrMethodOrLambda(analyzePackages[i].fDeclarationEdit, cuChange, newCUNode);

		// get new declaration
		IRegion newRegion= RefactoringAnalyzeUtil.getNewTextRange(analyzePackages[i].fDeclarationEdit, cuChange);
		ASTNode newDeclaration= NodeFinder.perform(newCUNode, newRegion.getOffset(), newRegion.getLength());
		Assert.isTrue(newDeclaration instanceof Name);

		VariableDeclaration declaration= getVariableDeclaration((Name) newDeclaration);
		Assert.isNotNull(declaration);

		SimpleName[] problemNodes= ProblemNodeFinder.getProblemNodes(enclosing, declaration, analyzePackages[i].fOccurenceEdits, cuChange);
		result.merge(RefactoringAnalyzeUtil.reportProblemNodes(newCuSource, problemNodes));
	}
	return result;
}