private void printAST(ASTNode<?> ast, int level) {
if (ast != null) {
printTab(level);
System.out.println(level + ":" + ast.getClass().getName() + "@" + ast.getId());
int n = ast.getNumChild();
for (int i = 0; i < n; i++) printAST(ast.getChild(i), level + 1);
}
}
private void declare(Variable var, ASTNode expr) {
String scopeType = "scope";
String variableType = "variable";
if (expr.getClass() == FieldNode.class) {
scopeType = "class";
variableType = "field";
} else if (expr.getClass() == PropertyNode.class) {
scopeType = "class";
variableType = "property";
}
StringBuilder msg = new StringBuilder();
msg.append("The current ").append(scopeType);
msg.append(" already contains a ").append(variableType);
msg.append(" of the name ").append(var.getName());
if (currentScope.getDeclaredVariable(var.getName()) != null) {
addError(msg.toString(), expr);
return;
}
for (VariableScope scope = currentScope.getParent(); scope != null; scope = scope.getParent()) {
// if we are in a class and no variable is declared until
// now, then we can break the loop, because we are allowed
// to declare a variable of the same name as a class member
if (scope.getClassScope() != null) break;
if (scope.getDeclaredVariable(var.getName()) != null) {
// variable already declared
addError(msg.toString(), expr);
break;
}
}
// declare the variable even if there was an error to allow more checks
currentScope.putDeclaredVariable(var);
}
private String getRefDescriptor(ASTNode ref) {
if (ref instanceof FieldNode) {
FieldNode f = (FieldNode) ref;
return "the field " + f.getName() + " ";
} else if (ref instanceof PropertyNode) {
PropertyNode p = (PropertyNode) ref;
return "the property " + p.getName() + " ";
} else if (ref instanceof ConstructorNode) {
return "the constructor " + ref.getText() + " ";
} else if (ref instanceof MethodNode) {
return "the method " + ref.getText() + " ";
} else if (ref instanceof ClassNode) {
return "the super class " + ref + " ";
}
return "<unknown with class " + ref.getClass() + "> ";
}
public JavaRefactoringDescriptor buildEclipseDescriptor() throws Exception {
System.err.println("[eclipse-rename] Building descriptor...");
IJavaElement element = location.getIJavaElement();
String kind = getRenameKind(element);
// [1] BUGFIX was needed: The scripting interface didn't allow VariableDeclarationFragments as
// IJavaElements
// and thus had to be extended
// [2] WORKAROUND for scripting interface bug (see below)
if (kind.equals(IJavaRefactorings.RENAME_METHOD)) {
IMethod m = (IMethod) element;
if (m.isConstructor()) {
// Rename the type instead (as the UI would do-- the scripting interface will only rename
// the constructor, which is broken)
kind = IJavaRefactorings.RENAME_TYPE;
element = m.getDeclaringType();
}
}
System.err.println("[eclipse-rename] Kind = " + kind + ", element = " + element);
// [3] Don't test for package fragments now
if (kind.equals(IJavaRefactorings.RENAME_PACKAGE)) return null; // don't bother with this now
if (element == null) {
System.err.println("!!! ABORT: No IJavaElement to represent location");
throw new RuntimeException("!!! ABORT: No IJavaElement for location");
}
if (element instanceof ILocalVariable) {
System.err.println("element is of type " + element.getClass());
final ILocalVariable fLocalVariable = (ILocalVariable) element;
final ISourceRange sourceRange = fLocalVariable.getNameRange();
final CompilationUnit fCompilationUnitNode = location.getCompilationUnit();
ASTNode name = NodeFinder.perform(fCompilationUnitNode, sourceRange);
System.err.println("node is of type " + name.getClass());
if (name == null) System.err.println("!!! ILV doesn't have associated name!");
if (name.getParent() instanceof VariableDeclaration)
System.err.println("ILV has parent : " + (VariableDeclaration) name.getParent());
else
System.err.println(
"!!! ILV doesn't have var declaration parent, instead " + name.getParent().getClass());
}
System.err.println("Trying to rename a " + kind + ": " + element);
if (element instanceof SimpleName)
System.err.println(" Name = '" + ((SimpleName) element).getIdentifier() + "'");
if (kind.equals(IJavaRefactorings.RENAME_TYPE)) {
System.err.println("(Possibly need a new launch configuration)");
tproject.renameClass((IType) element, new_name);
}
final RenameJavaElementDescriptor descriptor =
(RenameJavaElementDescriptor) getDescriptor(kind);
descriptor.setJavaElement(element);
descriptor.setNewName(this.new_name);
if (element.getElementType() == IJavaElement.TYPE
|| element.getElementType() == IJavaElement.PACKAGE_FRAGMENT)
descriptor.setUpdateQualifiedNames(true);
else descriptor.setUpdateQualifiedNames(false);
descriptor.setUpdateReferences(true);
descriptor.setDeprecateDelegate(false);
descriptor.setRenameGetters(false);
descriptor.setRenameSetters(false);
descriptor.setKeepOriginal(false);
descriptor.setUpdateHierarchy(false);
descriptor.setUpdateSimilarDeclarations(false);
// [3] Fix: Eclipse will complain if the transformation is a no-op, but we don't want that:
if (element.getElementName().equals(this.new_name)) throw new NOPException();
System.err.println("[eclipse-rename] Computed descriptor.");
return descriptor;
}