@Override
protected void generate(AnnotationTypeDeclaration node) {
syncLineNumbers(node.getName()); // avoid doc-comment
String typeName = NameTable.getFullName(node);
printf("@implementation %s\n", typeName);
if (BindingUtil.isRuntimeAnnotation(Types.getTypeBinding(node))) {
List<AnnotationTypeMemberDeclaration> members = Lists.newArrayList();
for (BodyDeclaration decl : ASTUtil.getBodyDeclarations(node)) {
if (decl instanceof AnnotationTypeMemberDeclaration) {
members.add((AnnotationTypeMemberDeclaration) decl);
}
}
printAnnotationProperties(members);
if (!members.isEmpty()) {
printAnnotationConstructor(Types.getTypeBinding(node));
}
printAnnotationAccessors(members);
}
List<FieldDeclaration> fields = ASTUtil.getFieldDeclarations(node);
List<IVariableBinding> fieldsNeedingAccessors =
getStaticFieldsNeedingAccessors(fields, /* isInterface */ true);
printStaticVars(fields, /* isInterface */ true);
printStaticFieldAccessors(fieldsNeedingAccessors, Collections.<MethodDeclaration>emptyList());
println("- (IOSClass *)annotationType {");
printf(" return [IOSClass classWithProtocol:@protocol(%s)];\n", typeName);
println("}\n");
if (!Options.stripReflection()) {
printTypeAnnotationsMethod(node);
printMetadata(node);
}
println("@end\n");
}
private Statement createInnerConstructorInvocation(MethodDeclaration m) {
ConstructorInvocation invocation = m.getAST().newConstructorInvocation();
Types.addBinding(invocation, Types.getBinding(m));
for (SingleVariableDeclaration param : ASTUtil.getParameters(m)) {
SimpleName paramName = param.getName();
IVariableBinding paramBinding = Types.getVariableBinding(paramName);
SimpleName argName = m.getAST().newSimpleName(paramName.getIdentifier());
Types.addBinding(argName, paramBinding);
ASTUtil.getArguments(invocation).add(argName);
}
return invocation;
}
private String generateMethodBody(MethodDeclaration m) {
String methodBody;
if (Modifier.isNative(m.getModifiers())) {
if (hasNativeCode(m, true)) {
methodBody = extractNativeMethodBody(m);
} else if (Options.generateNativeStubs()) {
return generateNativeStub(m);
} else {
return null;
}
} else if (Modifier.isAbstract(m.getModifiers())) {
// Generate a body which throws a NSInvalidArgumentException.
String body =
"{\n // can't call an abstract method\n " + "[self doesNotRecognizeSelector:_cmd];\n ";
if (!Types.isVoidType(m.getReturnType2())) {
body += "return 0;\n"; // Never executes, but avoids a gcc warning.
}
return body + "}";
} else {
// generate a normal method body
methodBody = generateStatement(m.getBody(), false);
}
boolean isStatic = (m.getModifiers() & Modifier.STATIC) != 0;
boolean isSynchronized = (m.getModifiers() & Modifier.SYNCHRONIZED) != 0;
if (isStatic && isSynchronized) {
methodBody = "{\n@synchronized([self class]) {\n" + methodBody + "}\n}\n";
} else if (isSynchronized) {
methodBody = "{\n@synchronized(self) {\n" + methodBody + "}\n}\n";
}
return methodBody;
}
public IOSMethod(String s, IMethodBinding binding, ITypeBinding returnType, AST ast) {
if (s.endsWith(";")) {
s = s.substring(0, s.length() - 1);
}
int i = s.indexOf(' ');
String className = s.substring(0, i);
IOSTypeBinding clazz = Types.resolveIOSType(className);
if (clazz == null) {
clazz = new IOSTypeBinding(className, false);
}
declaringClass = clazz.getName();
s = s.substring(i + 1);
parameters = Lists.newArrayList();
i = s.indexOf(':');
if (i > 0) { // if there are parameters
name = s.substring(0, i);
String[] argDefs = splitParameterString(s);
for (i = 0; i < argDefs.length; i++) {
IOSParameter param = new IOSParameter(argDefs[i], i, ast);
parameters.add(param);
if (param.isVarArgs()) {
varArgs = true;
break;
}
}
} else {
name = s;
}
this.binding = new IOSMethodBinding(name, binding, clazz, returnType, varArgs);
}
@Override
protected void printStaticConstructorDeclaration(MethodDeclaration m) {
String className = NameTable.getFullName(Types.getMethodBinding(m).getDeclaringClass());
StringBuffer sb = new StringBuffer();
sb.append("{\nif (self == [" + className + " class]) {\n");
for (Statement statement : ASTUtil.getStatements(m.getBody())) {
sb.append(generateStatement(statement, false));
}
sb.append("}\n}");
print("+ (void)initialize " + reindent(sb.toString()) + "\n\n");
}
private void printMethodAnnotationMethods(List<MethodDeclaration> methods) {
for (MethodDeclaration method : methods) {
List<Annotation> runtimeAnnotations =
ASTUtil.getRuntimeAnnotations(ASTUtil.getModifiers(method));
if (runtimeAnnotations.size() > 0) {
printf(
"+ (IOSObjectArray *)__annotations_%s {\n", methodKey(Types.getMethodBinding(method)));
printAnnotationCreate(runtimeAnnotations);
}
printParameterAnnotationMethods(method);
}
}
// Prints an annotation's values as a constructor argument list. If
// the annotation type declares default values, then for any value that
// isn't specified in the annotation will use the default.
private void printAnnotationParameters(Annotation annotation) {
IAnnotationBinding binding = Types.getAnnotationBinding(annotation);
IMemberValuePairBinding[] valueBindings = BindingUtil.getSortedMemberValuePairs(binding);
for (int i = 0; i < valueBindings.length; i++) {
if (i > 0) {
print(' ');
}
IMemberValuePairBinding valueBinding = valueBindings[i];
print(i == 0 ? "With" : "with");
printf("%s:", NameTable.capitalize(valueBinding.getName()));
Object value = valueBinding.getValue();
printAnnotationValue(annotation.getAST(), value);
}
}
private void printMethodsAndOcni(
AbstractTypeDeclaration typeNode,
Iterable<MethodDeclaration> methods,
Iterable<Comment> comments) {
Set<String> methodsPrinted = Sets.newHashSet();
Iterator<MethodDeclaration> methodsIter = methods.iterator();
Iterator<Comment> commentsIter = comments.iterator();
MethodDeclaration nextMethod = methodsIter.hasNext() ? methodsIter.next() : null;
Comment nextComment = commentsIter.hasNext() ? commentsIter.next() : null;
int minPos = 0;
while (nextMethod != null || nextComment != null) {
int methodStartPos = nextMethod != null ? nextMethod.getStartPosition() : Integer.MAX_VALUE;
if (methodStartPos < 0) {
methodStartPos = minPos;
}
int commentStartPos =
nextComment != null ? nextComment.getStartPosition() : Integer.MAX_VALUE;
if (methodStartPos < commentStartPos) {
assert nextMethod != null;
printMethod(nextMethod);
minPos = methodStartPos + nextMethod.getLength();
nextMethod = methodsIter.hasNext() ? methodsIter.next() : null;
} else {
assert nextComment != null;
if (commentStartPos > minPos) {
String nativeCode = extractNativeCode(commentStartPos, nextComment.getLength());
if (nativeCode != null) {
nativeCode = reindent(nativeCode.trim());
findMethodSignatures(nativeCode, methodsPrinted);
print(nativeCode + "\n\n");
}
}
nextComment = commentsIter.hasNext() ? commentsIter.next() : null;
}
}
// If the type implements Iterable and there's no existing implementation
// for NSFastEnumeration's protocol method, then add the default
// implementation.
if (BindingUtil.findInterface(Types.getTypeBinding(typeNode), "java.lang.Iterable") != null
&& !methodsPrinted.contains("countByEnumeratingWithState:objects:count:")) {
print(
"- (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state "
+ "objects:(__unsafe_unretained id *)stackbuf count:(NSUInteger)len {\n"
+ " return JreDefaultFastEnumeration(self, state, stackbuf, len);\n}\n\n");
}
}
@Override
protected String constructorDeclaration(MethodDeclaration m) {
String methodBody;
IMethodBinding binding = Types.getMethodBinding(m);
boolean memDebug = Options.memoryDebug();
List<Statement> statements = ASTUtil.getStatements(m.getBody());
if (binding.getDeclaringClass().isEnum()) {
return enumConstructorDeclaration(m, statements, binding);
}
StringBuffer sb = new StringBuffer("{\n");
int constructorIdx = findConstructorInvocation(statements);
int idx = 0;
while (idx < constructorIdx) {
sb.append(generateStatement(statements.get(idx++), false));
}
String superCall =
idx == constructorIdx ? generateStatement(statements.get(idx++), false) : "[super init]";
if (idx >= statements.size()) {
sb.append("return ");
if (memDebug) {
sb.append("JreMemDebugAdd(");
}
sb.append(superCall).append(memDebug ? ");\n}" : ";\n}");
} else {
sb.append("if (self = ").append(superCall).append(") {\n");
while (idx < statements.size()) {
sb.append(generateStatement(statements.get(idx++), false));
}
if (memDebug) {
sb.append("JreMemDebugAdd(self);\n");
}
sb.append("}\nreturn self;\n}");
}
methodBody = sb.toString();
if (invokedConstructors.contains(methodKey(binding))) {
return super.constructorDeclaration(m, true)
+ " "
+ reindent(methodBody)
+ "\n\n"
+ super.constructorDeclaration(m, false)
+ " {\n return "
+ generateStatement(createInnerConstructorInvocation(m), false)
+ ";\n}\n\n";
} else {
return super.constructorDeclaration(m, false) + " " + reindent(methodBody) + "\n\n";
}
}
private void printParameterAnnotationMethods(MethodDeclaration method) {
List<SingleVariableDeclaration> params = ASTUtil.getParameters(method);
// Quick test to see if there are any parameter annotations.
boolean hasAnnotations = false;
for (SingleVariableDeclaration param : params) {
List<Annotation> runtimeAnnotations =
ASTUtil.getRuntimeAnnotations(ASTUtil.getModifiers(param));
if (runtimeAnnotations.size() > 0) {
hasAnnotations = true;
break;
}
}
if (hasAnnotations) {
// Print array of arrays, with an element in the outer array for each parameter.
printf(
"+ (IOSObjectArray *)__annotations_%s_params {\n",
methodKey(Types.getMethodBinding(method)));
print(" return [IOSObjectArray arrayWithObjects:(id[]) { ");
for (int i = 0; i < params.size(); i++) {
if (i > 0) {
print(", ");
}
SingleVariableDeclaration param = params.get(i);
List<Annotation> runtimeAnnotations =
ASTUtil.getRuntimeAnnotations(ASTUtil.getModifiers(param));
if (runtimeAnnotations.size() > 0) {
print("[IOSObjectArray arrayWithObjects:(id[]) { ");
printAnnotations(runtimeAnnotations);
printf(
" } count:%d type:[IOSClass classWithProtocol:"
+ "@protocol(JavaLangAnnotationAnnotation)]]",
runtimeAnnotations.size());
} else {
print(
"[IOSObjectArray arrayWithLength:0 "
+ "type:[IOSClass classWithProtocol:@protocol(JavaLangAnnotationAnnotation)]]");
}
}
printf(
" } count:%d type:[IOSClass classWithProtocol:"
+ "@protocol(JavaLangAnnotationAnnotation)]];\n}\n",
params.size());
}
}
private void printMethods(TypeDeclaration node) {
printMethodsAndOcni(node, Arrays.asList(node.getMethods()), blockComments.get(node));
// If node implements CharSequence, add forwarding method from the
// sequenceDescription method to description (toString()). See
// JavaToIOSMethodTranslator.loadCharSequenceMethods() for details.
ITypeBinding binding = Types.getTypeBinding(node);
for (ITypeBinding interfaze : binding.getInterfaces()) {
if (interfaze.getQualifiedName().equals("java.lang.CharSequence")) {
println("- (NSString *)description {\n return [self sequenceDescription];\n}\n");
}
}
List<VariableDeclarationFragment> properties = getProperties(node.getFields());
if (properties.size() > 0) {
printStrongReferencesMethod(properties);
}
}
private void printAnnotationAccessors(List<AnnotationTypeMemberDeclaration> members) {
int nPrinted = 0;
for (AnnotationTypeMemberDeclaration member : members) {
Expression deflt = member.getDefault();
if (deflt != null) {
ITypeBinding type = Types.getTypeBinding(member.getType());
String typeString = NameTable.getSpecificObjCType(type);
String propertyName = NameTable.getName(member.getName());
printf("+ (%s)%sDefault {\n", typeString, propertyName);
printf(" return %s;\n", generateExpression(deflt));
println("}\n");
nPrinted++;
}
}
if (nPrinted > 0) {
newline();
}
}
private void printAnnotations(List<Annotation> runtimeAnnotations) {
boolean first = true;
for (Annotation annotation : runtimeAnnotations) {
if (first) {
first = false;
} else {
print(", ");
}
if (Options.useReferenceCounting()) {
print('[');
}
printf("[[%s alloc] init", NameTable.getFullName(Types.getTypeBinding(annotation)));
printAnnotationParameters(annotation);
print(']');
if (Options.useReferenceCounting()) {
print(" autorelease]");
}
}
}
/** Verifies that abstract methods to implement an interface are added to an abstract class. */
public void testAbstractMethodsAdded() {
String source =
"import java.util.Iterator; public abstract class Test implements Iterator<Test> { "
+ "public boolean hasNext() { return true; } }";
CompilationUnit unit = translateType("Test", source);
List<AbstractTypeDeclaration> types = unit.getTypes();
assertEquals(1, types.size());
assertTrue(types.get(0) instanceof TypeDeclaration);
TypeDeclaration testType = (TypeDeclaration) types.get(0);
List<MethodDeclaration> methods = TreeUtil.getMethodDeclarationsList(testType);
assertEquals(4, methods.size());
// verify added methods are abstract, and that existing method wasn't changed
for (MethodDeclaration m : methods) {
int modifiers = m.getModifiers();
String name = m.getName().getIdentifier();
if (name.equals("hasNext")) {
assertFalse(Modifier.isAbstract(modifiers));
} else if (name.equals(NameTable.FINALIZE_METHOD)
|| name.equals(NameTable.DEALLOC_METHOD)
|| name.equals(NameTable.INIT_NAME)) {
// it's ok.
} else {
// it's an added method
assertTrue(Modifier.isAbstract(modifiers));
assertEquals(0, m.getParameters().size());
if (name.equals("next")) {
assertEquals(testType.getTypeBinding(), m.getReturnType().getTypeBinding());
} else if (name.equals("remove")) {
ITypeBinding voidType = Types.resolveJavaType("void");
assertEquals(voidType, m.getReturnType().getTypeBinding());
} else {
fail("unknown method added: " + name);
}
}
}
}
// We generate the runtime debug method +memDebugStaticReferences.
// This method will return an array of NSNumber containing pointers (casted into unsigned long)
// to the objects referenced by a class variable with a strong reference.
// It will be useful for debug purpose.
//
// Arrays returned by -memDebugStaticReferences and -memDebugStaticReferencesNames (see below)
// must be the same size.
//
// In case of a Java enum, valuesVarNameis the name of the array of enum values.
private void printStaticReferencesMethod(List<FieldDeclaration> fields, String valuesVarName) {
if (Options.memoryDebug()) {
if (!Options.useReferenceCounting()) {
println("+ (NSArray *)memDebugStaticReferences {");
println(" return nil;");
println("}");
return;
}
println("+ (NSArray *)memDebugStaticReferences {");
println(" NSMutableArray *result = [NSMutableArray array];");
for (FieldDeclaration f : fields) {
if (Modifier.isStatic(f.getModifiers())) {
for (VariableDeclarationFragment var : ASTUtil.getFragments(f)) {
IVariableBinding binding = Types.getVariableBinding(var);
// All non-primitive static variables are strong references.
if (!binding.getType().isPrimitive()) {
String name = NameTable.getStaticVarQualifiedName(binding);
println(
String.format(
" [result addObject:[JreMemDebugStrongReference "
+ "strongReferenceWithObject:%s name:@\"%s\"]];",
name, name));
}
}
}
}
if (valuesVarName != null) {
println(
String.format(
" [result addObject:[JreMemDebugStrongReference "
+ "strongReferenceWithObject:%s name:@\"enumValues\"]];",
valuesVarName));
}
println(" return result;");
println("}\n");
}
}
private void printStaticVars(List<FieldDeclaration> fields, boolean isInterface) {
boolean hadStaticVar = false;
for (FieldDeclaration f : fields) {
if (Modifier.isStatic(f.getModifiers()) || isInterface) {
for (VariableDeclarationFragment var : ASTUtil.getFragments(f)) {
IVariableBinding binding = Types.getVariableBinding(var);
if (!BindingUtil.isPrimitiveConstant(binding)) {
String name = NameTable.getStaticVarQualifiedName(binding);
String objcType = NameTable.getObjCType(binding.getType());
Expression initializer = var.getInitializer();
if (initializer != null) {
printf("static %s %s = %s;\n", objcType, name, generateExpression(initializer));
} else {
printf("static %s %s;\n", objcType, name);
}
hadStaticVar = true;
}
}
}
}
if (hadStaticVar) {
newline();
}
}
public NullLiteral() {
super(Types.resolveJavaType("java.lang.Object"));
}
// Returns whether the property is a strong reference.
private boolean isStrongReferenceProperty(VariableDeclarationFragment property) {
IVariableBinding varBinding = Types.getVariableBinding(property);
ITypeBinding type = Types.getTypeBinding(property);
return !type.isPrimitive() && !BindingUtil.isWeakReference(varBinding);
}
@Override
protected void generate(EnumDeclaration node) {
List<EnumConstantDeclaration> constants = ASTUtil.getEnumConstants(node);
List<MethodDeclaration> methods = Lists.newArrayList();
List<FieldDeclaration> fields = Lists.newArrayList();
MethodDeclaration initializeMethod = null;
for (BodyDeclaration decl : ASTUtil.getBodyDeclarations(node)) {
if (decl instanceof FieldDeclaration) {
fields.add((FieldDeclaration) decl);
} else if (decl instanceof MethodDeclaration) {
MethodDeclaration md = (MethodDeclaration) decl;
if (md.getName().getIdentifier().equals("initialize")) {
initializeMethod = md;
} else {
methods.add(md);
}
}
}
syncLineNumbers(node.getName()); // avoid doc-comment
String typeName = NameTable.getFullName(node);
newline();
for (EnumConstantDeclaration constant : constants) {
IVariableBinding var = Types.getVariableBinding(constant.getName());
printf("static %s *%s;\n", typeName, NameTable.getStaticVarQualifiedName(var));
}
printf("IOSObjectArray *%s_values;\n", typeName);
newline();
printf("@implementation %s\n\n", typeName);
printStaticVars(fields, /* isInterface */ false);
printStaticReferencesMethod(fields, typeName + "_values");
for (EnumConstantDeclaration constant : constants) {
String name = NameTable.getName(constant.getName());
printf("+ (%s *)%s {\n", typeName, name);
printf(" return %s_%s;\n", typeName, name);
println("}");
}
newline();
// Enum constants needs to implement NSCopying. Being singletons, they
// can just return self, as long the retain count is incremented.
String selfString = Options.useReferenceCounting() ? "[self retain]" : "self";
printf("- (id)copyWithZone:(NSZone *)zone {\n return %s;\n}\n\n", selfString);
printStaticFieldAccessors(fields, methods, /* isInterface */ false);
printMethodsAndOcni(node, methods, blockComments.get(node));
printf("+ (void)initialize {\n if (self == [%s class]) {\n", typeName);
for (int i = 0; i < constants.size(); i++) {
EnumConstantDeclaration constant = constants.get(i);
List<Expression> args = ASTUtil.getArguments(constant);
String name = NameTable.getName(constant.getName());
String constantTypeName =
NameTable.getFullName(Types.getMethodBinding(constant).getDeclaringClass());
printf(" %s_%s = [[%s alloc] init", typeName, name, constantTypeName);
if (args.isEmpty()) {
print("With");
} else {
print(
StatementGenerator.generateArguments(
Types.getMethodBinding(constant),
args,
fieldHiders,
getBuilder().getSourcePosition()));
print(" with");
}
printf("NSString:@\"%s\" withInt:%d];\n", name, i);
}
printf(" %s_values = [[IOSObjectArray alloc] initWithObjects:(id[]){ ", typeName);
for (EnumConstantDeclaration constant : constants) {
printf("%s_%s, ", typeName, NameTable.getName(constant.getName()));
}
printf(
"nil } count:%d type:[IOSClass classWithClass:[%s class]]];\n", constants.size(), typeName);
if (initializeMethod != null) {
for (Statement s : ASTUtil.getStatements(initializeMethod.getBody())) {
printf(
" %s",
StatementGenerator.generate(s, fieldHiders, false, getBuilder().getSourcePosition()));
}
}
println(" }\n}\n");
// Print generated values and valueOf methods.
println("+ (IOSObjectArray *)values {");
printf(" return [IOSObjectArray arrayWithArray:%s_values];\n", typeName);
println("}\n");
printf("+ (%s *)valueOfWithNSString:(NSString *)name {\n", typeName);
printf(" for (int i = 0; i < [%s_values count]; i++) {\n", typeName);
printf(" %s *e = %s_values->buffer_[i];\n", typeName, typeName);
printf(" if ([name isEqual:[e name]]) {\n");
printf(" return e;\n");
printf(" }\n");
printf(" }\n");
if (Options.useReferenceCounting()) {
printf(
" @throw [[[JavaLangIllegalArgumentException alloc] initWithNSString:name]"
+ " autorelease];\n");
} else {
printf(" @throw [[JavaLangIllegalArgumentException alloc] initWithNSString:name];\n");
}
printf(" return nil;\n");
println("}\n");
if (!Options.stripReflection()) {
printTypeAnnotationsMethod(node);
printMetadata(node);
}
println("@end");
}
private String generateNativeStub(MethodDeclaration m) {
IMethodBinding binding = Types.getMethodBinding(m);
String methodName = NameTable.getName(binding);
return String.format("{\n @throw \"%s method not implemented\";\n}", methodName);
}
@Override
protected String getParameterName(SingleVariableDeclaration param) {
String name = super.getParameterName(param);
IVariableBinding binding = Types.getVariableBinding(param);
return binding != null && fieldHiders.contains(binding) ? name + "Arg" : name;
}