public ArrayType createArrayType(TType elementType, int dimensions) {
Assert.isTrue(!elementType.isArrayType());
Assert.isTrue(!elementType.isAnonymous());
Assert.isTrue(dimensions > 0);
int index = dimensions - 1;
Map arrayTypes = getArrayTypesMap(index);
ArrayType result = (ArrayType) arrayTypes.get(elementType);
if (result != null) return result;
result =
new ArrayType(
this, BindingKey.createArrayTypeBindingKey(elementType.getBindingKey(), dimensions));
arrayTypes.put(elementType, result);
result.initialize(elementType, dimensions);
return result;
}
public class TypeEnvironment {
private static class ProjectKeyPair {
private final IJavaScriptProject fProject;
private final String fBindingKey;
public ProjectKeyPair(IJavaScriptProject project, String bindingKey) {
fProject = project;
fBindingKey = bindingKey;
}
public boolean equals(Object other) {
if (this == other) return true;
if (!(other instanceof ProjectKeyPair)) return false;
ProjectKeyPair otherPair = (ProjectKeyPair) other;
return fProject.equals(otherPair.fProject) && fBindingKey.equals(otherPair.fBindingKey);
}
public int hashCode() {
return fProject.hashCode() + fBindingKey.hashCode();
}
}
/** Type code for the primitive type "int". */
public final PrimitiveType INT =
new PrimitiveType(
this, PrimitiveType.INT, BindingKey.createTypeBindingKey("int")); // $NON-NLS-1$
/** Type code for the primitive type "char". */
public final PrimitiveType CHAR =
new PrimitiveType(
this, PrimitiveType.CHAR, BindingKey.createTypeBindingKey("char")); // $NON-NLS-1$
/** Type code for the primitive type "boolean". */
public final PrimitiveType BOOLEAN =
new PrimitiveType(
this, PrimitiveType.BOOLEAN, BindingKey.createTypeBindingKey("boolean")); // $NON-NLS-1$
/** Type code for the primitive type "short". */
public final PrimitiveType SHORT =
new PrimitiveType(
this, PrimitiveType.SHORT, BindingKey.createTypeBindingKey("short")); // $NON-NLS-1$
/** Type code for the primitive type "long". */
public final PrimitiveType LONG =
new PrimitiveType(
this, PrimitiveType.LONG, BindingKey.createTypeBindingKey("long")); // $NON-NLS-1$
/** Type code for the primitive type "float". */
public final PrimitiveType FLOAT =
new PrimitiveType(
this, PrimitiveType.FLOAT, BindingKey.createTypeBindingKey("float")); // $NON-NLS-1$
/** Type code for the primitive type "double". */
public final PrimitiveType DOUBLE =
new PrimitiveType(
this, PrimitiveType.DOUBLE, BindingKey.createTypeBindingKey("double")); // $NON-NLS-1$
/** Type code for the primitive type "byte". */
public final PrimitiveType BYTE =
new PrimitiveType(
this, PrimitiveType.BYTE, BindingKey.createTypeBindingKey("byte")); // $NON-NLS-1$
/** Type code for the primitive type "null". */
public final NullType NULL = new NullType(this);
public final VoidType VOID = new VoidType(this);
final PrimitiveType[] PRIMITIVE_TYPES = {INT, CHAR, BOOLEAN, SHORT, LONG, FLOAT, DOUBLE, BYTE};
private static final String[] BOXED_PRIMITIVE_NAMES =
new String[] {
"java.lang.Integer", //$NON-NLS-1$
"java.lang.Character", //$NON-NLS-1$
"java.lang.Boolean", //$NON-NLS-1$
"java.lang.Short", //$NON-NLS-1$
"java.lang.Long", //$NON-NLS-1$
"java.lang.Float", //$NON-NLS-1$
"java.lang.Double", //$NON-NLS-1$
"java.lang.Byte"
}; //$NON-NLS-1$
private TType OBJECT_TYPE = null;
private Map /*<TType, ArrayType>*/[] fArrayTypes = new Map[] {new HashMap()};
private Map /*<IJavaScriptElement, StandardType>*/ fStandardTypes = new HashMap();
private Map /*<IJavaScriptElement, GenericType>*/ fGenericTypes = new HashMap();
private Map /*<ProjectKeyPair, ParameterizedType>*/ fParameterizedTypes = new HashMap();
private Map /*<IJavaScriptElement, RawType>*/ fRawTypes = new HashMap();
private Map /*<ProjectKeyPair, CaptureType>*/ fCaptureTypes = new HashMap();
private UnboundWildcardType fUnboundWildcardType = null;
private static final int MAX_ENTRIES = 1024;
private Map /*<TypeTuple, Boolean>*/ fSubTypeCache =
new LinkedHashMap(50, 0.75f, true) {
private static final long serialVersionUID = 1L;
protected boolean removeEldestEntry(Map.Entry eldest) {
return size() > MAX_ENTRIES;
}
};
/**
* Map from TType to its known subtypes, or <code>null</code> iff subtype information was not
* requested in the constructor.
*/
private Map /*<TType, List<TType>>*/ fSubTypes;
public static ITypeBinding[] createTypeBindings(TType[] types, IJavaScriptProject project) {
final Map mapping = new HashMap();
List keys = new ArrayList();
for (int i = 0; i < types.length; i++) {
TType type = types[i];
String bindingKey = type.getBindingKey();
mapping.put(bindingKey, type);
keys.add(bindingKey);
}
ASTParser parser = ASTParser.newParser(AST.JLS3);
parser.setProject(project);
parser.setResolveBindings(true);
parser.createASTs(
new IJavaScriptUnit[0],
(String[]) keys.toArray(new String[keys.size()]),
new ASTRequestor() {
public void acceptBinding(String bindingKey, IBinding binding) {
mapping.put(bindingKey, binding);
}
},
null);
ITypeBinding[] result = new ITypeBinding[types.length];
for (int i = 0; i < types.length; i++) {
TType type = types[i];
String bindingKey = type.getBindingKey();
Object value = mapping.get(bindingKey);
if (value instanceof ITypeBinding) {
result[i] = (ITypeBinding) value;
}
}
return result;
}
public TypeEnvironment() {
this(false);
}
public TypeEnvironment(boolean rememberSubtypes) {
if (rememberSubtypes) {
fSubTypes = new HashMap();
}
}
Map /*<TypeTuple, Boolean>*/ getSubTypeCache() {
return fSubTypeCache;
}
public TType create(ITypeBinding binding) {
if (binding.isPrimitive()) {
return createPrimitiveType(binding);
} else if (binding.isArray()) {
return createArrayType(binding);
}
if ("null".equals(binding.getName())) // $NON-NLS-1$
return NULL;
return createStandardType(binding);
}
public TType[] create(ITypeBinding[] bindings) {
TType[] result = new TType[bindings.length];
for (int i = 0; i < bindings.length; i++) {
result[i] = create(bindings[i]);
}
return result;
}
/**
* Returns the TType for java.lang.Object.
*
* <p>Warning: currently returns <code>null</code> unless this type environment has already
* created its first hierarchy type.
*
* @return the TType for java.lang.Object
*/
public TType getJavaLangObject() {
return OBJECT_TYPE;
}
void initializeJavaLangObject(ITypeBinding object) {
if (OBJECT_TYPE != null) return;
TType objectType = createStandardType(object);
Assert.isTrue(objectType.isJavaLangObject());
}
PrimitiveType createUnBoxed(StandardType type) {
String name = type.getPlainPrettySignature();
for (int i = 0; i < BOXED_PRIMITIVE_NAMES.length; i++) {
if (BOXED_PRIMITIVE_NAMES[i].equals(name)) return PRIMITIVE_TYPES[i];
}
return null;
}
StandardType createBoxed(PrimitiveType type, IJavaScriptProject focus) {
String fullyQualifiedName = BOXED_PRIMITIVE_NAMES[type.getId()];
try {
IType javaElementType = focus.findType(fullyQualifiedName);
StandardType result = (StandardType) fStandardTypes.get(javaElementType);
if (result != null) return result;
ASTParser parser = ASTParser.newParser(AST.JLS3);
parser.setProject(focus);
IBinding[] bindings = parser.createBindings(new IJavaScriptElement[] {javaElementType}, null);
return createStandardType((ITypeBinding) bindings[0]);
} catch (JavaScriptModelException e) {
// fall through
}
return null;
}
Map /*<TType, List<TType>>*/ getSubTypes() {
return fSubTypes;
}
private void cacheSubType(TType supertype, TType result) {
if (fSubTypes == null) return;
if (supertype == null) supertype = OBJECT_TYPE;
ArrayList subtypes = (ArrayList) fSubTypes.get(supertype);
if (subtypes == null) {
subtypes = new ArrayList(5);
fSubTypes.put(supertype, subtypes);
} else {
Assert.isTrue(!subtypes.contains(result));
}
subtypes.add(result);
}
private void cacheSubTypes(TType[] interfaces, TType result) {
for (int i = 0; i < interfaces.length; i++) {
cacheSubType(interfaces[i], result);
}
}
private TType createPrimitiveType(ITypeBinding binding) {
String name = binding.getName();
String[] names = PrimitiveType.NAMES;
for (int i = 0; i < names.length; i++) {
if (name.equals(names[i])) {
return PRIMITIVE_TYPES[i];
}
}
Assert.isTrue(false, "Primitive type " + name + "unkown"); // $NON-NLS-1$//$NON-NLS-2$
return null;
}
private ArrayType createArrayType(ITypeBinding binding) {
int index = binding.getDimensions() - 1;
TType elementType = create(binding.getElementType());
Map /*<TType, ArrayType>*/ arrayTypes = getArrayTypesMap(index);
ArrayType result = (ArrayType) arrayTypes.get(elementType);
if (result != null) return result;
result = new ArrayType(this);
arrayTypes.put(elementType, result);
result.initialize(binding, elementType);
return result;
}
public ArrayType createArrayType(TType elementType, int dimensions) {
Assert.isTrue(!elementType.isArrayType());
Assert.isTrue(!elementType.isAnonymous());
Assert.isTrue(dimensions > 0);
int index = dimensions - 1;
Map arrayTypes = getArrayTypesMap(index);
ArrayType result = (ArrayType) arrayTypes.get(elementType);
if (result != null) return result;
result =
new ArrayType(
this, BindingKey.createArrayTypeBindingKey(elementType.getBindingKey(), dimensions));
arrayTypes.put(elementType, result);
result.initialize(elementType, dimensions);
return result;
}
private Map /*<TType, ArrayType>*/ getArrayTypesMap(int index) {
int oldLength = fArrayTypes.length;
if (index >= oldLength) {
Map[] newArray = new Map[index + 1];
System.arraycopy(fArrayTypes, 0, newArray, 0, oldLength);
fArrayTypes = newArray;
}
Map arrayTypes = fArrayTypes[index];
if (arrayTypes == null) {
arrayTypes = new HashMap();
fArrayTypes[index] = arrayTypes;
}
return arrayTypes;
}
private StandardType createStandardType(ITypeBinding binding) {
IJavaScriptElement javaElement = binding.getJavaElement();
StandardType result = (StandardType) fStandardTypes.get(javaElement);
if (result != null) return result;
result = new StandardType(this);
fStandardTypes.put(javaElement, result);
result.initialize(binding, (IType) javaElement);
if (OBJECT_TYPE == null && result.isJavaLangObject()) OBJECT_TYPE = result;
return result;
}
private GenericType createGenericType(ITypeBinding binding) {
IJavaScriptElement javaElement = binding.getJavaElement();
GenericType result = (GenericType) fGenericTypes.get(javaElement);
if (result != null) return result;
result = new GenericType(this);
fGenericTypes.put(javaElement, result);
result.initialize(binding, (IType) javaElement);
cacheSubType(result.getSuperclass(), result);
cacheSubTypes(result.getInterfaces(), result);
return result;
}
private RawType createRawType(ITypeBinding binding) {
IJavaScriptElement javaElement = binding.getJavaElement();
RawType result = (RawType) fRawTypes.get(javaElement);
if (result != null) return result;
result = new RawType(this);
fRawTypes.put(javaElement, result);
result.initialize(binding, (IType) javaElement);
cacheSubType(result.getSuperclass(), result);
cacheSubTypes(result.getInterfaces(), result);
return result;
}
private TType createUnboundWildcardType(ITypeBinding binding) {
if (fUnboundWildcardType == null) {
fUnboundWildcardType = new UnboundWildcardType(this);
fUnboundWildcardType.initialize(binding);
}
return fUnboundWildcardType;
}
private CaptureType createCaptureType(ITypeBinding binding) {
IJavaScriptProject javaProject =
binding.getDeclaringClass().getJavaElement().getJavaScriptProject();
String bindingKey = binding.getKey();
ProjectKeyPair pair = new ProjectKeyPair(javaProject, bindingKey);
CaptureType result = (CaptureType) fCaptureTypes.get(pair);
if (result != null) return result;
result = new CaptureType(this);
fCaptureTypes.put(pair, result);
result.initialize(binding, javaProject);
return result;
}
}
