public ArrayList<String> collectApiRefs(final CompilationUnitDeclaration cud) {
final Set<String> apiRefs = new HashSet<String>();
class DependencyVisitor extends TypeRefVisitor {
public DependencyVisitor() {
super(cud);
}
@Override
public boolean visit(Argument arg, BlockScope scope) {
// Adapted from {@link Argument#traverse}.
// Don't visit annotations.
if (arg.type != null) {
arg.type.traverse(this, scope);
}
return false;
}
@Override
public boolean visit(Argument arg, ClassScope scope) {
// Adapted from {@link Argument#traverse}.
// Don't visit annotations.
if (arg.type != null) {
arg.type.traverse(this, scope);
}
return false;
}
@Override
public boolean visit(Block block, BlockScope scope) {
assert false : "Error in DepedencyVisitor; should never visit a block";
return false;
}
@Override
public boolean visit(Clinit clinit, ClassScope scope) {
return false;
}
@Override
public boolean visit(ConstructorDeclaration ctor, ClassScope scope) {
if (ctor.typeParameters != null) {
int typeParametersLength = ctor.typeParameters.length;
for (int i = 0; i < typeParametersLength; i++) {
ctor.typeParameters[i].traverse(this, ctor.scope);
}
}
traverse(ctor);
return false;
}
@Override
public boolean visit(FieldDeclaration fieldDeclaration, MethodScope scope) {
// Don't visit javadoc.
// Don't visit annotations.
if (fieldDeclaration.type != null) {
fieldDeclaration.type.traverse(this, scope);
}
// Don't visit initialization.
return false;
}
@Override
public boolean visit(Initializer initializer, MethodScope scope) {
return false;
}
@Override
public boolean visit(MethodDeclaration meth, ClassScope scope) {
if (meth.typeParameters != null) {
int typeParametersLength = meth.typeParameters.length;
for (int i = 0; i < typeParametersLength; i++) {
meth.typeParameters[i].traverse(this, meth.scope);
}
}
if (meth.returnType != null) {
meth.returnType.traverse(this, meth.scope);
}
traverse(meth);
return false;
}
@Override
public boolean visit(TypeDeclaration typeDeclaration, ClassScope scope) {
traverse(typeDeclaration);
return false;
}
@Override
public boolean visit(TypeDeclaration typeDeclaration, CompilationUnitScope scope) {
traverse(typeDeclaration);
return false;
}
@Override
protected void onBinaryTypeRef(
BinaryTypeBinding referencedType,
CompilationUnitDeclaration unitOfReferrer,
Expression expression) {
if (!String.valueOf(referencedType.getFileName()).endsWith(".java")) {
// ignore binary-only annotations
return;
}
addReference(referencedType);
}
@Override
protected void onTypeRef(
SourceTypeBinding referencedType, CompilationUnitDeclaration unitOfReferrer) {
addReference(referencedType);
}
private void addReference(ReferenceBinding referencedType) {
String binaryName = CharOperation.toString(referencedType.compoundName);
apiRefs.add(BinaryName.toSourceName(binaryName));
}
/** Adapted from {@link MethodDeclaration#traverse}. */
private void traverse(AbstractMethodDeclaration meth) {
// Don't visit javadoc.
// Don't visit annotations.
if (meth.arguments != null) {
int argumentLength = meth.arguments.length;
for (int i = 0; i < argumentLength; i++) {
meth.arguments[i].traverse(this, meth.scope);
}
}
if (meth.thrownExceptions != null) {
int thrownExceptionsLength = meth.thrownExceptions.length;
for (int i = 0; i < thrownExceptionsLength; i++) {
meth.thrownExceptions[i].traverse(this, meth.scope);
}
}
// Don't visit method bodies.
}
/** Adapted from {@link TypeDeclaration#traverse}. */
private void traverse(TypeDeclaration type) {
// Don't visit javadoc.
// Don't visit annotations.
if (type.superclass != null) {
type.superclass.traverse(this, type.scope);
}
if (type.superInterfaces != null) {
int length = type.superInterfaces.length;
for (int i = 0; i < length; i++) {
type.superInterfaces[i].traverse(this, type.scope);
}
}
if (type.typeParameters != null) {
int length = type.typeParameters.length;
for (int i = 0; i < length; i++) {
type.typeParameters[i].traverse(this, type.scope);
}
}
if (type.memberTypes != null) {
int length = type.memberTypes.length;
for (int i = 0; i < length; i++) {
type.memberTypes[i].traverse(this, type.scope);
}
}
if (type.fields != null) {
int length = type.fields.length;
for (int i = 0; i < length; i++) {
FieldDeclaration field;
if ((field = type.fields[i]).isStatic()) {
field.traverse(this, type.staticInitializerScope);
} else {
field.traverse(this, type.initializerScope);
}
}
}
if (type.methods != null) {
int length = type.methods.length;
for (int i = 0; i < length; i++) {
type.methods[i].traverse(this, type.scope);
}
}
}
}
DependencyVisitor visitor = new DependencyVisitor();
cud.traverse(visitor, cud.scope);
ArrayList<String> result = new ArrayList<String>(apiRefs);
Collections.sort(result);
return result;
}
public char[][][] collect() throws JavaModelException {
if (this.type != null) {
// Collect the paths of the cus that are in the hierarchy of the given type
this.result = new char[1][][];
this.resultIndex = 0;
JavaProject javaProject = (JavaProject) this.type.getJavaProject();
this.locator.initialize(javaProject, 0);
try {
if (this.type.isBinary()) {
BinaryTypeBinding binding = this.locator.cacheBinaryType(this.type, null);
if (binding != null) collectSuperTypeNames(binding);
} else {
ICompilationUnit unit = this.type.getCompilationUnit();
SourceType sourceType = (SourceType) this.type;
boolean isTopLevelOrMember = sourceType.getOuterMostLocalContext() == null;
CompilationUnitDeclaration parsedUnit = buildBindings(unit, isTopLevelOrMember);
if (parsedUnit != null) {
TypeDeclaration typeDecl = new ASTNodeFinder(parsedUnit).findType(this.type);
if (typeDecl != null && typeDecl.binding != null)
collectSuperTypeNames(typeDecl.binding);
}
}
} catch (AbortCompilation e) {
// problem with classpath: report inacurrate matches
return null;
}
if (this.result.length > this.resultIndex)
System.arraycopy(
this.result, 0, this.result = new char[this.resultIndex][][], 0, this.resultIndex);
return this.result;
}
// Collect the paths of the cus that declare a type which matches declaringQualification +
// declaringSimpleName
String[] paths = this.getPathsOfDeclaringType();
if (paths == null) return null;
// Create bindings from source types and binary types and collect super type names of the type
// declaration
// that match the given declaring type
Util.sort(paths); // sort by projects
JavaProject previousProject = null;
this.result = new char[1][][];
this.resultIndex = 0;
for (int i = 0, length = paths.length; i < length; i++) {
try {
Openable openable = this.locator.handleFactory.createOpenable(paths[i], this.locator.scope);
if (openable == null) continue; // outside classpath
IJavaProject project = openable.getJavaProject();
if (!project.equals(previousProject)) {
previousProject = (JavaProject) project;
this.locator.initialize(previousProject, 0);
}
if (openable instanceof ICompilationUnit) {
ICompilationUnit unit = (ICompilationUnit) openable;
CompilationUnitDeclaration parsedUnit =
buildBindings(
unit, true /*only toplevel and member types are visible to the focus type*/);
if (parsedUnit != null)
parsedUnit.traverse(new TypeDeclarationVisitor(), parsedUnit.scope);
} else if (openable instanceof IClassFile) {
IClassFile classFile = (IClassFile) openable;
BinaryTypeBinding binding = this.locator.cacheBinaryType(classFile.getType(), null);
if (matches(binding)) collectSuperTypeNames(binding);
}
} catch (AbortCompilation e) {
// ignore: continue with next element
} catch (JavaModelException e) {
// ignore: continue with next element
}
}
if (this.result.length > this.resultIndex)
System.arraycopy(
this.result, 0, this.result = new char[this.resultIndex][][], 0, this.resultIndex);
return this.result;
}
