public void createBCode(CodeGeneration gen) {
super.createBCode(gen);
if (hasResult()) {
TypeDecl type = null;
BodyDecl b = enclosingBodyDecl();
if (b instanceof MethodDecl) {
type = ((MethodDecl) b).type();
} else {
throw new Error("Can not create code that returns value within non method");
}
getResult().createBCode(gen);
getResult().type().emitCastTo(gen, type);
if (!finallyList().isEmpty()) {
type.emitStoreLocal(gen, resultSaveLocalNum());
}
for (Iterator iter = finallyList().iterator(); iter.hasNext(); ) {
FinallyHost stmt = (FinallyHost) iter.next();
gen.emitJsr(stmt.label_finally_block());
}
if (!finallyList().isEmpty()) {
type.emitLoadLocal(gen, resultSaveLocalNum());
}
type.emitReturn(gen);
} else {
for (Iterator iter = finallyList().iterator(); iter.hasNext(); ) {
FinallyHost stmt = (FinallyHost) iter.next();
gen.emitJsr(stmt.label_finally_block());
}
gen.emitReturn();
}
}
/** @apilevel internal */
private boolean isSupertypeOfArrayDecl_compute(ArrayDecl type) {
if (super.isSupertypeOfArrayDecl(type)) return true;
for (Iterator iter = type.interfacesIterator(); iter.hasNext(); ) {
TypeDecl typeDecl = (TypeDecl) iter.next();
if (typeDecl.instanceOf(this)) return true;
}
return false;
}
/** @apilevel internal */
private boolean isSupertypeOfClassDecl_compute(ClassDecl type) {
if (super.isSupertypeOfClassDecl(type)) return true;
for (Iterator iter = type.interfacesIterator(); iter.hasNext(); ) {
TypeDecl typeDecl = (TypeDecl) iter.next();
if (typeDecl.instanceOf(this)) return true;
}
return type.hasSuperclass() && type.superclass() != null && type.superclass().instanceOf(this);
}
/**
* @ast method
* @aspect PreciseRethrow
* @declaredat
* /Users/eric/Documents/workspaces/clara-soot/JastAddJ/Java7Frontend/PreciseRethrow.jrag:163
*/
public void exceptionHandling() {
Collection<TypeDecl> exceptionTypes = getExpr().throwTypes();
for (TypeDecl exceptionType : exceptionTypes) {
if (exceptionType == typeNull()) exceptionType = typeNullPointerException();
// 8.4.4
if (!handlesException(exceptionType))
error("" + this + " throws uncaught exception " + exceptionType.fullName());
}
}
/** @apilevel internal */
private SimpleSet memberTypes_compute(String name) {
SimpleSet set = localTypeDecls(name);
if (!set.isEmpty()) return set;
for (Iterator outerIter = superinterfacesIterator(); outerIter.hasNext(); ) {
TypeDecl typeDecl = (TypeDecl) outerIter.next();
for (Iterator iter = typeDecl.memberTypes(name).iterator(); iter.hasNext(); ) {
TypeDecl decl = (TypeDecl) iter.next();
if (!decl.isPrivate()) set = set.add(decl);
}
}
return set;
}
/**
* @ast method
* @aspect Expressions
* @declaredat
* /Users/eric/Documents/workspaces/clara-soot/JastAddExtensions/JimpleBackend/Expressions.jrag:84
*/
public soot.Value eval(Body b) {
TypeDecl dest = getDest().type();
TypeDecl source = getSource().type();
if (dest.isString()) {
Value lvalue = getDest().eval(b);
Value v = asImmediate(b, lvalue);
// new StringBuffer(left)
Local local =
b.newTemp(b.newNewExpr(lookupType("java.lang", "StringBuffer").sootRef(), this));
b.setLine(this);
b.add(
b.newInvokeStmt(
b.newSpecialInvokeExpr(
local,
Scene.v()
.getMethod("<java.lang.StringBuffer: void <init>(java.lang.String)>")
.makeRef(),
v,
this),
this));
// append right
Local rightResult =
b.newTemp(
b.newVirtualInvokeExpr(
local,
lookupType("java.lang", "StringBuffer")
.methodWithArgs("append", new TypeDecl[] {source.stringPromotion()})
.sootRef(),
asImmediate(b, getSource().eval(b)),
this));
// toString
Local result =
b.newTemp(
b.newVirtualInvokeExpr(
rightResult,
Scene.v()
.getMethod("<java.lang.StringBuffer: java.lang.String toString()>")
.makeRef(),
this));
Value v2 = lvalue instanceof Local ? lvalue : (Value) lvalue.clone();
getDest().emitStore(b, v2, result, this);
return result;
} else {
return super.eval(b);
}
}
/** @apilevel internal */
private HashMap memberFieldsMap_compute() {
HashMap map = new HashMap(localFieldsMap());
for (Iterator outerIter = superinterfacesIterator(); outerIter.hasNext(); ) {
TypeDecl typeDecl = (TypeDecl) outerIter.next();
for (Iterator iter = typeDecl.fieldsIterator(); iter.hasNext(); ) {
FieldDeclaration f = (FieldDeclaration) iter.next();
if (f.accessibleFrom(this) && !f.isPrivate() && !localFieldsMap().containsKey(f.name())) {
putSimpleSetElement(map, f.name(), f);
}
}
}
return map;
}
/** @apilevel internal */
private TypeDecl binaryNumericPromotedType_compute() {
TypeDecl leftType = left().type();
TypeDecl rightType = right().type();
if (leftType.isString()) return leftType;
if (rightType.isString()) return rightType;
if (leftType.isNumericType() && rightType.isNumericType())
return leftType.binaryNumericPromotion(rightType);
if (leftType.isBoolean() && rightType.isBoolean()) return leftType;
return unknownType();
}
/** @apilevel internal */
private SimpleSet memberFields_compute(String name) {
SimpleSet fields = localFields(name);
if (!fields.isEmpty()) return fields;
for (Iterator outerIter = superinterfacesIterator(); outerIter.hasNext(); ) {
TypeDecl typeDecl = (TypeDecl) outerIter.next();
for (Iterator iter = typeDecl.memberFields(name).iterator(); iter.hasNext(); ) {
FieldDeclaration f = (FieldDeclaration) iter.next();
if (f.accessibleFrom(this) && !f.isPrivate()) {
fields = fields.add(f);
}
}
}
return fields;
}
/**
* @ast method
* @aspect AccessControl
* @declaredat /home/uoji/JastAddJ/Java1.4Frontend/AccessControl.jrag:167
*/
public void accessControl() {
super.accessControl();
if (!isCircular()) {
// 9.1.2
HashSet set = new HashSet();
for (int i = 0; i < getNumSuperInterfaceId(); i++) {
TypeDecl decl = getSuperInterfaceId(i).type();
if (!decl.isInterfaceDecl() && !decl.isUnknown())
error(
"interface " + fullName() + " tries to extend non interface type " + decl.fullName());
if (!decl.isCircular() && !decl.accessibleFrom(this))
error(
"interface " + fullName() + " can not extend non accessible type " + decl.fullName());
if (set.contains(decl))
error(
"extended interface "
+ decl.fullName()
+ " mentionened multiple times in extends clause");
set.add(decl);
}
}
}
// Declared in AnonymousClasses.jrag at line 52
private AnonymousDecl rewriteRule0() {
{
setModifiers(new Modifiers(new List().add(new Modifier("final"))));
ConstructorDecl constructor = new ConstructorDecl();
addBodyDecl(constructor);
constructor.setModifiers((Modifiers) constructorDecl().getModifiers().fullCopy());
String name = "Anonymous" + nextAnonymousIndex();
setID(name);
constructor.setID(name);
List parameterList = new List();
for (int i = 0; i < constructorDecl().getNumParameter(); i++) {
parameterList.add(
new ParameterDeclaration(
constructorDecl().getParameter(i).type().createBoundAccess(),
constructorDecl().getParameter(i).name()));
}
constructor.setParameterList(parameterList);
List argList = new List();
for (int i = 0; i < constructor.getNumParameter(); i++)
argList.add(new VarAccess(constructor.getParameter(i).name()));
constructor.setConstructorInvocation(
new ExprStmt(new SuperConstructorAccess("super", argList)));
constructor.setBlock(new Block());
HashSet set = new HashSet();
for (int i = 0; i < getNumBodyDecl(); i++) {
if (getBodyDecl(i) instanceof InstanceInitializer) {
InstanceInitializer init = (InstanceInitializer) getBodyDecl(i);
set.addAll(init.exceptions());
} else if (getBodyDecl(i) instanceof FieldDeclaration) {
FieldDeclaration f = (FieldDeclaration) getBodyDecl(i);
if (f.isInstanceVariable()) {
set.addAll(f.exceptions());
}
}
}
List exceptionList = new List();
for (Iterator iter = set.iterator(); iter.hasNext(); ) {
TypeDecl exceptionType = (TypeDecl) iter.next();
if (exceptionType.isNull()) exceptionType = typeNullPointerException();
exceptionList.add(exceptionType.createQualifiedAccess());
}
constructor.setExceptionList(exceptionList);
return this;
}
}
/** @apilevel internal */
private SimpleSet ancestorMethods_compute(String signature) {
SimpleSet set = SimpleSet.emptySet;
for (Iterator outerIter = superinterfacesIterator(); outerIter.hasNext(); ) {
TypeDecl typeDecl = (TypeDecl) outerIter.next();
for (Iterator iter = typeDecl.methodsSignature(signature).iterator(); iter.hasNext(); ) {
MethodDecl m = (MethodDecl) iter.next();
set = set.add(m);
}
}
if (!superinterfacesIterator().hasNext()) {
for (Iterator iter = typeObject().methodsSignature(signature).iterator(); iter.hasNext(); ) {
MethodDecl m = (MethodDecl) iter.next();
if (m.isPublic()) set = set.add(m);
}
}
return set;
}
/** @apilevel internal */
private TypeDecl sourceType_compute() {
TypeDecl left = getDest().type();
TypeDecl right = getSource().type();
if (!left.isString() && !right.isString()) return super.sourceType();
if (left.isVoid() || right.isVoid()) return unknownType();
return left.isString() ? left : right;
}
/** @apilevel internal */
private HashMap methodsSignatureMap_compute() {
HashMap map = new HashMap(localMethodsSignatureMap());
for (Iterator outerIter = superinterfacesIterator(); outerIter.hasNext(); ) {
TypeDecl typeDecl = (TypeDecl) outerIter.next();
for (Iterator iter = typeDecl.methodsIterator(); iter.hasNext(); ) {
MethodDecl m = (MethodDecl) iter.next();
if (!m.isPrivate()
&& m.accessibleFrom(this)
&& !localMethodsSignatureMap().containsKey(m.signature()))
putSimpleSetElement(map, m.signature(), m);
}
}
for (Iterator iter = typeObject().methodsIterator(); iter.hasNext(); ) {
MethodDecl m = (MethodDecl) iter.next();
if (m.isPublic() && !map.containsKey(m.signature()))
putSimpleSetElement(map, m.signature(), m);
}
return map;
}
/**
* @ast method
* @aspect TypeHierarchyCheck
* @declaredat /home/uoji/JastAddJ/Java1.4Frontend/TypeHierarchyCheck.jrag:312
*/
public void nameCheck() {
super.nameCheck();
if (isCircular()) error("circular inheritance dependency in " + typeName());
else {
for (int i = 0; i < getNumSuperInterfaceId(); i++) {
TypeDecl typeDecl = getSuperInterfaceId(i).type();
if (typeDecl.isCircular()) error("circular inheritance dependency in " + typeName());
}
}
for (Iterator iter = methodsSignatureMap().values().iterator(); iter.hasNext(); ) {
SimpleSet set = (SimpleSet) iter.next();
if (set.size() > 1) {
Iterator i2 = set.iterator();
MethodDecl m = (MethodDecl) i2.next();
while (i2.hasNext()) {
MethodDecl n = (MethodDecl) i2.next();
if (!n.mayOverrideReturn(m) && !m.mayOverrideReturn(n))
error(
"multiply inherited methods with the same signature must have the same return type");
}
}
}
}
/**
* @ast method
* @aspect PreciseRethrow
* @declaredat
* /Users/eric/Documents/workspaces/clara-soot/JastAddJ/Java7Frontend/PreciseRethrow.jrag:176
*/
protected boolean reachedException(TypeDecl catchType) {
Collection<TypeDecl> exceptionTypes = getExpr().throwTypes();
boolean reached = false;
for (TypeDecl exceptionType : exceptionTypes) {
if (exceptionType == typeNull()) exceptionType = typeNullPointerException();
if (catchType.mayCatch(exceptionType)) {
reached = true;
break;
}
if (super.reachedException(catchType)) {
reached = true;
break;
}
}
return reached;
}
/** @apilevel internal */
private boolean castingConversionTo_compute(TypeDecl type) {
if (type.isArrayDecl()) {
return type.instanceOf(this);
} else if (type.isClassDecl()) {
return !type.isFinal() || type.instanceOf(this);
} else if (type.isInterfaceDecl()) {
for (Iterator i1 = methodsIterator(); i1.hasNext(); ) {
MethodDecl m = (MethodDecl) i1.next();
for (Iterator iter = type.methodsSignature(m.signature()).iterator(); iter.hasNext(); ) {
MethodDecl n = (MethodDecl) iter.next();
if (n.type() != m.type()) return false;
}
}
return true;
} else return super.castingConversionTo(type);
}
/**
* @ast method
* @aspect GenerateClassfile
* @declaredat /home/uoji/JastAddJ/Java1.4Backend/GenerateClassfile.jrag:142
*/
public void generateClassfile() {
super.generateClassfile();
String fileName = destinationPath() + File.separator + constantPoolName() + ".class";
if (options().verbose()) System.out.println("Writing class file to " + fileName);
try {
ConstantPool cp = constantPool();
// force building of constant pool
cp.addClass(constantPoolName());
cp.addClass("java/lang/Object");
for (int i = 0; i < getNumSuperInterfaceId(); i++) {
cp.addClass(getSuperInterfaceId(i).type().constantPoolName());
}
for (Iterator iter = bcFields().iterator(); iter.hasNext(); ) {
FieldDeclaration field = (FieldDeclaration) iter.next();
cp.addUtf8(field.name());
cp.addUtf8(field.type().typeDescriptor());
field.attributes();
}
for (Iterator iter = bcMethods().iterator(); iter.hasNext(); ) {
Object obj = iter.next();
if (obj instanceof MethodDecl) {
MethodDecl m = (MethodDecl) obj;
cp.addUtf8(m.name());
cp.addUtf8(m.descName());
m.attributes();
}
}
attributes();
if (hasClinit()) {
cp.addUtf8("<clinit>");
cp.addUtf8("()V");
clinit_attributes();
}
// actual classfile generation
File dest = new File(fileName);
File parentFile = dest.getParentFile();
if (parentFile != null) parentFile.mkdirs();
FileOutputStream f = new FileOutputStream(fileName);
DataOutputStream out = new DataOutputStream(new BufferedOutputStream(f));
out.writeInt(magicHeader());
out.writeChar(minorVersion());
out.writeChar(majorVersion());
cp.emit(out);
int flags = flags();
if (isNestedType()) flags = mangledFlags(flags);
if (isInterfaceDecl()) flags |= Modifiers.ACC_INTERFACE;
out.writeChar(flags);
out.writeChar(cp.addClass(constantPoolName()));
out.writeChar(cp.addClass("java/lang/Object"));
if (getNumSuperInterfaceId() == 1 && getSuperInterfaceId(0).type().isObject())
out.writeChar(0);
else out.writeChar(getNumSuperInterfaceId());
for (int i = 0; i < getNumSuperInterfaceId(); i++) {
TypeDecl typeDecl = getSuperInterfaceId(i).type();
if (typeDecl.isInterfaceDecl()) out.writeChar(cp.addClass(typeDecl.constantPoolName()));
}
Collection fields = bcFields();
out.writeChar(fields.size());
for (Iterator iter = fields.iterator(); iter.hasNext(); ) {
FieldDeclaration field = (FieldDeclaration) iter.next();
out.writeChar(field.flags());
out.writeChar(cp.addUtf8(field.name()));
out.writeChar(cp.addUtf8(field.type().typeDescriptor()));
out.writeChar(field.attributes().size());
for (Iterator itera = field.attributes().iterator(); itera.hasNext(); )
((Attribute) itera.next()).emit(out);
}
Collection methods = bcMethods();
out.writeChar(methods.size() + (hasClinit() ? 1 : 0));
for (Iterator iter = methods.iterator(); iter.hasNext(); ) {
BodyDecl b = (BodyDecl) iter.next();
b.generateMethod(out, cp);
}
if (hasClinit()) {
out.writeChar(Modifiers.ACC_STATIC);
out.writeChar(cp.addUtf8("<clinit>"));
out.writeChar(cp.addUtf8("()V"));
out.writeChar(clinit_attributes().size());
for (Iterator itera = clinit_attributes().iterator(); itera.hasNext(); )
((Attribute) itera.next()).emit(out);
}
out.writeChar(attributes().size());
for (Iterator itera = attributes().iterator(); itera.hasNext(); )
((Attribute) itera.next()).emit(out);
out.close();
} catch (IOException e) {
e.printStackTrace();
}
}
/** @apilevel internal */
private boolean instanceOf_compute(TypeDecl type) {
return type.isSupertypeOfInterfaceDecl(this);
}
private boolean narrowingConversionTo_compute(TypeDecl type) {
return type.isChar();
}
private boolean subtype_compute(TypeDecl type) {
return type.supertypeWildcard(this);
}
private boolean subtype_compute(TypeDecl type) {
return type.supertypeRawClassDecl(this);
}
// string addition assign expression
public void createBCode(CodeGeneration gen) {
TypeDecl dest = getDest().type();
TypeDecl source = getSource().type();
if (dest.isString()) {
getDest().createAssignLoadDest(gen);
// new StringBuffer()
TypeDecl stringBuffer = lookupType("java.lang", "StringBuffer");
String classname = stringBuffer.constantPoolName();
String desc;
int index;
TypeDecl argumentType;
stringBuffer.emitNew(gen); // new StringBuffer
gen.emitDup(); // dup
desc = "()V";
index = gen.constantPool().addMethodref(classname, "<init>", desc);
gen.emit(Bytecode.INVOKESPECIAL, -1).add2(index); // invokespecial StringBuffer()
gen.emitSwap();
// append
argumentType = dest.stringPromotion();
desc = "(" + argumentType.typeDescriptor() + ")" + stringBuffer.typeDescriptor();
index = gen.constantPool().addMethodref(classname, "append", desc);
gen.emit(Bytecode.INVOKEVIRTUAL, -argumentType.variableSize())
.add2(index); // StringBuffer.append
getSource().createBCode(gen);
// typed append
argumentType = source.stringPromotion();
desc = "(" + argumentType.typeDescriptor() + ")" + stringBuffer.typeDescriptor();
index = gen.constantPool().addMethodref(classname, "append", desc);
gen.emit(Bytecode.INVOKEVIRTUAL, -argumentType.variableSize())
.add2(index); // StringBuffer.append
// toString
desc = "()" + type().typeDescriptor();
index = gen.constantPool().addMethodref(classname, "toString", desc);
gen.emit(Bytecode.INVOKEVIRTUAL, 0).add2(index); // StringBuffer.toString
if (needsPush()) {
getDest().createPushAssignmentResult(gen);
}
getDest().emitStore(gen);
} else {
super.createBCode(gen);
}
}
public void typeCheck() {
TypeDecl cond = getCondition().type();
if (!cond.isBoolean()) {
error("the type of \"" + getCondition() + "\" is " + cond.name() + " which is not boolean");
}
}
public void createAssignOp(CodeGeneration gen, TypeDecl type) {
type.add(gen);
}