public void processClassReferences(ClassNode node) {
ClassWrapper wrapper = node.wrapper;
// int major_version = wrapper.getClassStruct().major_version;
// int minor_version = wrapper.getClassStruct().minor_version;
//
// if(major_version > 48 || (major_version == 48 && minor_version > 0)) {
// // version 1.5 or above
// return;
// }
if (wrapper.getClassStruct().isVersionGE_1_5()) {
// version 1.5 or above
return;
}
// find the synthetic method Class class$(String) if present
HashMap<ClassWrapper, MethodWrapper> mapClassMeths = new HashMap<ClassWrapper, MethodWrapper>();
mapClassMethods(node, mapClassMeths);
if (mapClassMeths.isEmpty()) {
return;
}
HashSet<ClassWrapper> setFound = new HashSet<ClassWrapper>();
processClassRec(node, mapClassMeths, setFound);
if (!setFound.isEmpty()) {
for (ClassWrapper wrp : setFound) {
StructMethod mt = mapClassMeths.get(wrp).methodStruct;
wrp.getHiddenMembers().add(InterpreterUtil.makeUniqueKey(mt.getName(), mt.getDescriptor()));
}
}
}
private static void processClassRec(
ClassNode node,
final HashMap<ClassWrapper, MethodWrapper> mapClassMeths,
final HashSet<ClassWrapper> setFound) {
final ClassWrapper wrapper = node.wrapper;
// search code
for (MethodWrapper meth : wrapper.getMethods()) {
RootStatement root = meth.root;
if (root != null) {
DirectGraph graph = meth.getOrBuildGraph();
graph.iterateExprents(
new DirectGraph.ExprentIterator() {
public int processExprent(Exprent exprent) {
for (Entry<ClassWrapper, MethodWrapper> ent : mapClassMeths.entrySet()) {
if (replaceInvocations(exprent, ent.getKey(), ent.getValue())) {
setFound.add(ent.getKey());
}
}
return 0;
}
});
}
}
// search initializers
for (int j = 0; j < 2; j++) {
VBStyleCollection<Exprent, String> initializers =
j == 0 ? wrapper.getStaticFieldInitializers() : wrapper.getDynamicFieldInitializers();
for (int i = 0; i < initializers.size(); i++) {
for (Entry<ClassWrapper, MethodWrapper> ent : mapClassMeths.entrySet()) {
Exprent exprent = initializers.get(i);
if (replaceInvocations(exprent, ent.getKey(), ent.getValue())) {
setFound.add(ent.getKey());
}
String cl = isClass14Invocation(exprent, ent.getKey(), ent.getValue());
if (cl != null) {
initializers.set(
i, new ConstExprent(VarType.VARTYPE_CLASS, cl.replace('.', '/'), exprent.bytecode));
setFound.add(ent.getKey());
}
}
}
}
// iterate nested classes
for (ClassNode nd : node.nested) {
processClassRec(nd, mapClassMeths, setFound);
}
}
private void mapClassMethods(ClassNode node, Map<ClassWrapper, MethodWrapper> map) {
boolean noSynthFlag = DecompilerContext.getOption(IFernflowerPreferences.SYNTHETIC_NOT_SET);
ClassWrapper wrapper = node.wrapper;
for (MethodWrapper method : wrapper.getMethods()) {
StructMethod mt = method.methodStruct;
if ((noSynthFlag || mt.isSynthetic())
&& mt.getDescriptor().equals("(Ljava/lang/String;)Ljava/lang/Class;")
&& mt.hasModifier(CodeConstants.ACC_STATIC)) {
RootStatement root = method.root;
if (root != null && root.getFirst().type == Statement.TYPE_TRYCATCH) {
CatchStatement cst = (CatchStatement) root.getFirst();
if (cst.getStats().size() == 2
&& cst.getFirst().type == Statement.TYPE_BASICBLOCK
&& cst.getStats().get(1).type == Statement.TYPE_BASICBLOCK
&& cst.getVars()
.get(0)
.getVarType()
.equals(
new VarType(
CodeConstants.TYPE_OBJECT, 0, "java/lang/ClassNotFoundException"))) {
BasicBlockStatement body = (BasicBlockStatement) cst.getFirst();
BasicBlockStatement handler = (BasicBlockStatement) cst.getStats().get(1);
if (body.getExprents().size() == 1 && handler.getExprents().size() == 1) {
if (bodyexprent.equals(body.getExprents().get(0))
&& handlerexprent.equals(handler.getExprents().get(0))) {
map.put(wrapper, method);
break;
}
}
}
}
}
}
// iterate nested classes
for (ClassNode nd : node.nested) {
mapClassMethods(nd, map);
}
}
private void invokeProcessors(ClassNode node) {
ClassWrapper wrapper = node.getWrapper();
StructClass cl = wrapper.getClassStruct();
InitializerProcessor.extractInitializers(wrapper);
InitializerProcessor.hideInitalizers(wrapper);
if (node.type == ClassNode.CLASS_ROOT
&& DecompilerContext.getOption(IFernflowerPreferences.DECOMPILE_CLASS_1_4)) {
ref14processor.processClassReferences(node);
}
if (cl.hasModifier(CodeConstants.ACC_ENUM)
&& DecompilerContext.getOption(IFernflowerPreferences.DECOMPILE_ENUM)) {
EnumProcessor.clearEnum(wrapper);
}
if (DecompilerContext.getOption(IFernflowerPreferences.DECOMPILE_ASSERTIONS)) {
AssertProcessor.buildAssertions(node);
}
}
private static boolean hideConstructor(
ClassWrapper wrapper, boolean init, boolean throwsExceptions, int paramCount) {
if (!init
|| throwsExceptions
|| paramCount > 0
|| !DecompilerContext.getOption(IFernflowerPreferences.HIDE_DEFAULT_CONSTRUCTOR)) {
return false;
}
int count = 0;
for (StructMethod mt : wrapper.getClassStruct().getMethods()) {
if (CodeConstants.INIT_NAME.equals(mt.getName())) {
if (++count > 1) {
return false;
}
}
}
return true;
}
private static String isClass14Invocation(
Exprent exprent, ClassWrapper wrapper, MethodWrapper meth) {
if (exprent.type == Exprent.EXPRENT_FUNCTION) {
FunctionExprent fexpr = (FunctionExprent) exprent;
if (fexpr.getFuncType() == FunctionExprent.FUNCTION_IIF) {
if (fexpr.getLstOperands().get(0).type == Exprent.EXPRENT_FUNCTION) {
FunctionExprent headexpr = (FunctionExprent) fexpr.getLstOperands().get(0);
if (headexpr.getFuncType() == FunctionExprent.FUNCTION_EQ) {
if (headexpr.getLstOperands().get(0).type == Exprent.EXPRENT_FIELD
&& headexpr.getLstOperands().get(1).type == Exprent.EXPRENT_CONST
&& ((ConstExprent) headexpr.getLstOperands().get(1))
.getConstType()
.equals(VarType.VARTYPE_NULL)) {
FieldExprent field = (FieldExprent) headexpr.getLstOperands().get(0);
ClassNode fieldnode =
DecompilerContext.getClassProcessor()
.getMapRootClasses()
.get(field.getClassname());
if (fieldnode != null
&& fieldnode.classStruct.qualifiedName.equals(
wrapper.getClassStruct().qualifiedName)) { // source class
StructField fd =
wrapper
.getClassStruct()
.getField(
field.getName(),
field.getDescriptor().descriptorString); // FIXME: can be null! why??
if (fd != null
&& fd.hasModifier(CodeConstants.ACC_STATIC)
&& (fd.isSynthetic()
|| DecompilerContext.getOption(IFernflowerPreferences.SYNTHETIC_NOT_SET))) {
if (fexpr.getLstOperands().get(1).type == Exprent.EXPRENT_ASSIGNMENT
&& fexpr.getLstOperands().get(2).equals(field)) {
AssignmentExprent asexpr = (AssignmentExprent) fexpr.getLstOperands().get(1);
if (asexpr.getLeft().equals(field)
&& asexpr.getRight().type == Exprent.EXPRENT_INVOCATION) {
InvocationExprent invexpr = (InvocationExprent) asexpr.getRight();
if (invexpr.getClassname().equals(wrapper.getClassStruct().qualifiedName)
&& invexpr.getName().equals(meth.methodStruct.getName())
&& invexpr
.getStringDescriptor()
.equals(meth.methodStruct.getDescriptor())) {
if (invexpr.getLstParameters().get(0).type == Exprent.EXPRENT_CONST) {
wrapper
.getHiddenMembers()
.add(
InterpreterUtil.makeUniqueKey(
fd.getName(), fd.getDescriptor())); // hide synthetic field
return ((ConstExprent) invexpr.getLstParameters().get(0))
.getValue()
.toString();
}
}
}
}
}
}
}
}
}
}
}
return null;
}
public void classLambdaToJava(
ClassNode node,
TextBuffer buffer,
Exprent method_object,
int indent,
BytecodeMappingTracer origTracer) {
ClassWrapper wrapper = node.getWrapper();
if (wrapper == null) {
return;
}
boolean lambdaToAnonymous =
DecompilerContext.getOption(IFernflowerPreferences.LAMBDA_TO_ANONYMOUS_CLASS);
ClassNode outerNode =
(ClassNode) DecompilerContext.getProperty(DecompilerContext.CURRENT_CLASS_NODE);
DecompilerContext.setProperty(DecompilerContext.CURRENT_CLASS_NODE, node);
BytecodeMappingTracer tracer = new BytecodeMappingTracer(origTracer.getCurrentSourceLine());
try {
StructClass cl = wrapper.getClassStruct();
DecompilerContext.getLogger().startWriteClass(node.simpleName);
if (node.lambdaInformation.is_method_reference) {
if (!node.lambdaInformation.is_content_method_static && method_object != null) {
// reference to a virtual method
buffer.append(method_object.toJava(indent, tracer));
} else {
// reference to a static method
buffer.append(
ExprProcessor.getCastTypeName(
new VarType(node.lambdaInformation.content_class_name, false)));
}
buffer.append("::");
buffer.append(node.lambdaInformation.content_method_name);
} else {
// lambda method
StructMethod mt = cl.getMethod(node.lambdaInformation.content_method_key);
MethodWrapper methodWrapper = wrapper.getMethodWrapper(mt.getName(), mt.getDescriptor());
MethodDescriptor md_content =
MethodDescriptor.parseDescriptor(node.lambdaInformation.content_method_descriptor);
MethodDescriptor md_lambda =
MethodDescriptor.parseDescriptor(node.lambdaInformation.method_descriptor);
if (!lambdaToAnonymous) {
buffer.append('(');
boolean firstParameter = true;
int index = node.lambdaInformation.is_content_method_static ? 0 : 1;
int start_index = md_content.params.length - md_lambda.params.length;
for (int i = 0; i < md_content.params.length; i++) {
if (i >= start_index) {
if (!firstParameter) {
buffer.append(", ");
}
String parameterName = methodWrapper.varproc.getVarName(new VarVersionPair(index, 0));
buffer.append(
parameterName == null
? "param" + index
: parameterName); // null iff decompiled with errors
firstParameter = false;
}
index += md_content.params[i].stackSize;
}
buffer.append(") ->");
}
buffer.append(" {").appendLineSeparator();
tracer.incrementCurrentSourceLine();
methodLambdaToJava(node, wrapper, mt, buffer, indent + 1, !lambdaToAnonymous, tracer);
buffer.appendIndent(indent).append("}");
addTracer(cl, mt, tracer);
}
} finally {
DecompilerContext.setProperty(DecompilerContext.CURRENT_CLASS_NODE, outerNode);
}
DecompilerContext.getLogger().endWriteClass();
}
private boolean methodToJava(
ClassNode node,
StructMethod mt,
TextBuffer buffer,
int indent,
BytecodeMappingTracer tracer) {
ClassWrapper wrapper = node.getWrapper();
StructClass cl = wrapper.getClassStruct();
MethodWrapper methodWrapper = wrapper.getMethodWrapper(mt.getName(), mt.getDescriptor());
boolean hideMethod = false;
int start_index_method = buffer.length();
MethodWrapper outerWrapper =
(MethodWrapper) DecompilerContext.getProperty(DecompilerContext.CURRENT_METHOD_WRAPPER);
DecompilerContext.setProperty(DecompilerContext.CURRENT_METHOD_WRAPPER, methodWrapper);
try {
boolean isInterface = cl.hasModifier(CodeConstants.ACC_INTERFACE);
boolean isAnnotation = cl.hasModifier(CodeConstants.ACC_ANNOTATION);
boolean isEnum =
cl.hasModifier(CodeConstants.ACC_ENUM)
&& DecompilerContext.getOption(IFernflowerPreferences.DECOMPILE_ENUM);
boolean isDeprecated = mt.getAttributes().containsKey("Deprecated");
boolean clinit = false, init = false, dinit = false;
MethodDescriptor md = MethodDescriptor.parseDescriptor(mt.getDescriptor());
int flags = mt.getAccessFlags();
if ((flags & CodeConstants.ACC_NATIVE) != 0) {
flags &=
~CodeConstants
.ACC_STRICT; // compiler bug: a strictfp class sets all methods to strictfp
}
if (CodeConstants.CLINIT_NAME.equals(mt.getName())) {
flags &=
CodeConstants
.ACC_STATIC; // ignore all modifiers except 'static' in a static initializer
}
if (isDeprecated) {
appendDeprecation(buffer, indent);
}
if (interceptor != null) {
String oldName =
interceptor.getOldName(
cl.qualifiedName + " " + mt.getName() + " " + mt.getDescriptor());
appendRenameComment(buffer, oldName, MType.METHOD, indent);
}
boolean isSynthetic =
(flags & CodeConstants.ACC_SYNTHETIC) != 0 || mt.getAttributes().containsKey("Synthetic");
boolean isBridge = (flags & CodeConstants.ACC_BRIDGE) != 0;
if (isSynthetic) {
appendComment(buffer, "synthetic method", indent);
}
if (isBridge) {
appendComment(buffer, "bridge method", indent);
}
appendAnnotations(buffer, mt, indent);
buffer.appendIndent(indent);
appendModifiers(buffer, flags, METHOD_ALLOWED, isInterface, METHOD_EXCLUDED);
if (isInterface && mt.containsCode()) {
// 'default' modifier (Java 8)
buffer.append("default ");
}
String name = mt.getName();
if (CodeConstants.INIT_NAME.equals(name)) {
if (node.type == ClassNode.CLASS_ANONYMOUS) {
name = "";
dinit = true;
} else {
name = node.simpleName;
init = true;
}
} else if (CodeConstants.CLINIT_NAME.equals(name)) {
name = "";
clinit = true;
}
GenericMethodDescriptor descriptor = null;
if (DecompilerContext.getOption(IFernflowerPreferences.DECOMPILE_GENERIC_SIGNATURES)) {
StructGenericSignatureAttribute attr =
(StructGenericSignatureAttribute) mt.getAttributes().getWithKey("Signature");
if (attr != null) {
descriptor = GenericMain.parseMethodSignature(attr.getSignature());
if (descriptor != null) {
int actualParams = md.params.length;
List<VarVersionPair> sigFields = methodWrapper.signatureFields;
if (sigFields != null) {
actualParams = 0;
for (VarVersionPair field : methodWrapper.signatureFields) {
if (field == null) {
actualParams++;
}
}
} else if (isEnum && init) actualParams -= 2;
if (actualParams != descriptor.params.size()) {
String message =
"Inconsistent generic signature in method "
+ mt.getName()
+ " "
+ mt.getDescriptor()
+ " in "
+ cl.qualifiedName;
DecompilerContext.getLogger().writeMessage(message, IFernflowerLogger.Severity.WARN);
descriptor = null;
}
}
}
}
boolean throwsExceptions = false;
int paramCount = 0;
if (!clinit && !dinit) {
boolean thisVar = !mt.hasModifier(CodeConstants.ACC_STATIC);
if (descriptor != null && !descriptor.fparameters.isEmpty()) {
appendTypeParameters(buffer, descriptor.fparameters, descriptor.fbounds);
buffer.append(' ');
}
if (!init) {
if (descriptor != null) {
buffer.append(GenericMain.getGenericCastTypeName(descriptor.ret));
} else {
buffer.append(ExprProcessor.getCastTypeName(md.ret));
}
buffer.append(' ');
}
buffer.append(toValidJavaIdentifier(name));
buffer.append('(');
// parameters
List<VarVersionPair> signFields = methodWrapper.signatureFields;
int lastVisibleParameterIndex = -1;
for (int i = 0; i < md.params.length; i++) {
if (signFields == null || signFields.get(i) == null) {
lastVisibleParameterIndex = i;
}
}
boolean firstParameter = true;
int index = isEnum && init ? 3 : thisVar ? 1 : 0;
boolean hasDescriptor = descriptor != null;
int start = isEnum && init && !hasDescriptor ? 2 : 0;
int params = hasDescriptor ? descriptor.params.size() : md.params.length;
for (int i = start; i < params; i++) {
if (hasDescriptor || (signFields == null || signFields.get(i) == null)) {
if (!firstParameter) {
buffer.append(", ");
}
appendParameterAnnotations(buffer, mt, paramCount);
if (methodWrapper.varproc.getVarFinal(new VarVersionPair(index, 0))
== VarTypeProcessor.VAR_EXPLICIT_FINAL) {
buffer.append("final ");
}
if (descriptor != null) {
GenericType parameterType = descriptor.params.get(i);
boolean isVarArg =
(i == lastVisibleParameterIndex
&& mt.hasModifier(CodeConstants.ACC_VARARGS)
&& parameterType.arrayDim > 0);
if (isVarArg) {
parameterType = parameterType.decreaseArrayDim();
}
String typeName = GenericMain.getGenericCastTypeName(parameterType);
if (ExprProcessor.UNDEFINED_TYPE_STRING.equals(typeName)
&& DecompilerContext.getOption(
IFernflowerPreferences.UNDEFINED_PARAM_TYPE_OBJECT)) {
typeName = ExprProcessor.getCastTypeName(VarType.VARTYPE_OBJECT);
}
buffer.append(typeName);
if (isVarArg) {
buffer.append("...");
}
} else {
VarType parameterType = md.params[i];
boolean isVarArg =
(i == lastVisibleParameterIndex
&& mt.hasModifier(CodeConstants.ACC_VARARGS)
&& parameterType.arrayDim > 0);
if (isVarArg) {
parameterType = parameterType.decreaseArrayDim();
}
String typeName = ExprProcessor.getCastTypeName(parameterType);
if (ExprProcessor.UNDEFINED_TYPE_STRING.equals(typeName)
&& DecompilerContext.getOption(
IFernflowerPreferences.UNDEFINED_PARAM_TYPE_OBJECT)) {
typeName = ExprProcessor.getCastTypeName(VarType.VARTYPE_OBJECT);
}
buffer.append(typeName);
if (isVarArg) {
buffer.append("...");
}
}
buffer.append(' ');
String parameterName = methodWrapper.varproc.getVarName(new VarVersionPair(index, 0));
buffer.append(
parameterName == null
? "param" + index
: parameterName); // null iff decompiled with errors
firstParameter = false;
paramCount++;
}
index += md.params[i].stackSize;
}
buffer.append(')');
StructExceptionsAttribute attr =
(StructExceptionsAttribute) mt.getAttributes().getWithKey("Exceptions");
if ((descriptor != null && !descriptor.exceptions.isEmpty()) || attr != null) {
throwsExceptions = true;
buffer.append(" throws ");
for (int i = 0; i < attr.getThrowsExceptions().size(); i++) {
if (i > 0) {
buffer.append(", ");
}
if (descriptor != null && !descriptor.exceptions.isEmpty()) {
GenericType type = descriptor.exceptions.get(i);
buffer.append(GenericMain.getGenericCastTypeName(type));
} else {
VarType type = new VarType(attr.getExcClassname(i, cl.getPool()), true);
buffer.append(ExprProcessor.getCastTypeName(type));
}
}
}
}
tracer.incrementCurrentSourceLine(buffer.countLines(start_index_method));
if ((flags & (CodeConstants.ACC_ABSTRACT | CodeConstants.ACC_NATIVE))
!= 0) { // native or abstract method (explicit or interface)
if (isAnnotation) {
StructAnnDefaultAttribute attr =
(StructAnnDefaultAttribute) mt.getAttributes().getWithKey("AnnotationDefault");
if (attr != null) {
buffer.append(" default ");
buffer.append(
attr.getDefaultValue()
.toJava(indent + 1, new BytecodeMappingTracer())); // dummy tracer
}
}
buffer.append(';');
buffer.appendLineSeparator();
tracer.incrementCurrentSourceLine();
} else {
if (!clinit && !dinit) {
buffer.append(' ');
}
// We do not have line information for method start, lets have it here for now
StructLineNumberTableAttribute lineNumberTable =
(StructLineNumberTableAttribute)
mt.getAttributes().getWithKey(StructGeneralAttribute.ATTRIBUTE_LINE_NUMBER_TABLE);
if (lineNumberTable != null
&& DecompilerContext.getOption(IFernflowerPreferences.USE_DEBUG_LINE_NUMBERS)) {
buffer.setCurrentLine(lineNumberTable.getFirstLine() - 1);
}
buffer.append('{').appendLineSeparator();
tracer.incrementCurrentSourceLine();
RootStatement root = wrapper.getMethodWrapper(mt.getName(), mt.getDescriptor()).root;
if (root != null && !methodWrapper.decompiledWithErrors) { // check for existence
try {
int startLine = tracer.getCurrentSourceLine();
TextBuffer code = root.toJava(indent + 1, tracer);
hideMethod =
(clinit || dinit || hideConstructor(wrapper, init, throwsExceptions, paramCount))
&& code.length() == 0;
if (!hideMethod
&& lineNumberTable != null
&& DecompilerContext.getOption(IFernflowerPreferences.USE_DEBUG_LINE_NUMBERS)) {
mapLines(code, lineNumberTable, tracer, startLine);
}
buffer.append(code);
} catch (Throwable ex) {
DecompilerContext.getLogger()
.writeMessage(
"Method " + mt.getName() + " " + mt.getDescriptor() + " couldn't be written.",
ex);
methodWrapper.decompiledWithErrors = true;
}
}
if (methodWrapper.decompiledWithErrors) {
buffer.appendIndent(indent + 1);
buffer.append("// $FF: Couldn't be decompiled");
buffer.appendLineSeparator();
tracer.incrementCurrentSourceLine();
}
if (root != null) {
tracer.addMapping(root.getDummyExit().bytecode);
}
buffer.appendIndent(indent).append('}').appendLineSeparator();
tracer.incrementCurrentSourceLine();
}
} finally {
DecompilerContext.setProperty(DecompilerContext.CURRENT_METHOD_WRAPPER, outerWrapper);
}
// save total lines
// TODO: optimize
// tracer.setCurrentSourceLine(buffer.countLines(start_index_method));
return !hideMethod;
}
private static void methodLambdaToJava(
ClassNode lambdaNode,
ClassWrapper classWrapper,
StructMethod mt,
TextBuffer buffer,
int indent,
boolean codeOnly,
BytecodeMappingTracer tracer) {
MethodWrapper methodWrapper = classWrapper.getMethodWrapper(mt.getName(), mt.getDescriptor());
MethodWrapper outerWrapper =
(MethodWrapper) DecompilerContext.getProperty(DecompilerContext.CURRENT_METHOD_WRAPPER);
DecompilerContext.setProperty(DecompilerContext.CURRENT_METHOD_WRAPPER, methodWrapper);
try {
String method_name = lambdaNode.lambdaInformation.method_name;
MethodDescriptor md_content =
MethodDescriptor.parseDescriptor(lambdaNode.lambdaInformation.content_method_descriptor);
MethodDescriptor md_lambda =
MethodDescriptor.parseDescriptor(lambdaNode.lambdaInformation.method_descriptor);
if (!codeOnly) {
buffer.appendIndent(indent);
buffer.append("public ");
buffer.append(method_name);
buffer.append("(");
boolean firstParameter = true;
int index = lambdaNode.lambdaInformation.is_content_method_static ? 0 : 1;
int start_index = md_content.params.length - md_lambda.params.length;
for (int i = 0; i < md_content.params.length; i++) {
if (i >= start_index) {
if (!firstParameter) {
buffer.append(", ");
}
String typeName = ExprProcessor.getCastTypeName(md_content.params[i].copy());
if (ExprProcessor.UNDEFINED_TYPE_STRING.equals(typeName)
&& DecompilerContext.getOption(
IFernflowerPreferences.UNDEFINED_PARAM_TYPE_OBJECT)) {
typeName = ExprProcessor.getCastTypeName(VarType.VARTYPE_OBJECT);
}
buffer.append(typeName);
buffer.append(" ");
String parameterName = methodWrapper.varproc.getVarName(new VarVersionPair(index, 0));
buffer.append(
parameterName == null
? "param" + index
: parameterName); // null iff decompiled with errors
firstParameter = false;
}
index += md_content.params[i].stackSize;
}
buffer.append(") {").appendLineSeparator();
indent += 1;
}
RootStatement root = classWrapper.getMethodWrapper(mt.getName(), mt.getDescriptor()).root;
if (!methodWrapper.decompiledWithErrors) {
if (root != null) { // check for existence
try {
buffer.append(root.toJava(indent, tracer));
} catch (Throwable ex) {
DecompilerContext.getLogger()
.writeMessage(
"Method " + mt.getName() + " " + mt.getDescriptor() + " couldn't be written.",
ex);
methodWrapper.decompiledWithErrors = true;
}
}
}
if (methodWrapper.decompiledWithErrors) {
buffer.appendIndent(indent);
buffer.append("// $FF: Couldn't be decompiled");
buffer.appendLineSeparator();
}
if (root != null) {
tracer.addMapping(root.getDummyExit().bytecode);
}
if (!codeOnly) {
indent -= 1;
buffer.appendIndent(indent).append('}').appendLineSeparator();
}
} finally {
DecompilerContext.setProperty(DecompilerContext.CURRENT_METHOD_WRAPPER, outerWrapper);
}
}
private void fieldToJava(
ClassWrapper wrapper,
StructClass cl,
StructField fd,
TextBuffer buffer,
int indent,
BytecodeMappingTracer tracer) {
int start = buffer.length();
boolean isInterface = cl.hasModifier(CodeConstants.ACC_INTERFACE);
boolean isDeprecated = fd.getAttributes().containsKey("Deprecated");
boolean isEnum =
fd.hasModifier(CodeConstants.ACC_ENUM)
&& DecompilerContext.getOption(IFernflowerPreferences.DECOMPILE_ENUM);
if (isDeprecated) {
appendDeprecation(buffer, indent);
}
if (interceptor != null) {
String oldName =
interceptor.getOldName(cl.qualifiedName + " " + fd.getName() + " " + fd.getDescriptor());
appendRenameComment(buffer, oldName, MType.FIELD, indent);
}
if (fd.isSynthetic()) {
appendComment(buffer, "synthetic field", indent);
}
appendAnnotations(buffer, fd, indent);
buffer.appendIndent(indent);
if (!isEnum) {
appendModifiers(buffer, fd.getAccessFlags(), FIELD_ALLOWED, isInterface, FIELD_EXCLUDED);
}
VarType fieldType = new VarType(fd.getDescriptor(), false);
GenericFieldDescriptor descriptor = null;
if (DecompilerContext.getOption(IFernflowerPreferences.DECOMPILE_GENERIC_SIGNATURES)) {
StructGenericSignatureAttribute attr =
(StructGenericSignatureAttribute) fd.getAttributes().getWithKey("Signature");
if (attr != null) {
descriptor = GenericMain.parseFieldSignature(attr.getSignature());
}
}
if (!isEnum) {
if (descriptor != null) {
buffer.append(GenericMain.getGenericCastTypeName(descriptor.type));
} else {
buffer.append(ExprProcessor.getCastTypeName(fieldType));
}
buffer.append(' ');
}
buffer.append(fd.getName());
tracer.incrementCurrentSourceLine(buffer.countLines(start));
Exprent initializer;
if (fd.hasModifier(CodeConstants.ACC_STATIC)) {
initializer =
wrapper
.getStaticFieldInitializers()
.getWithKey(InterpreterUtil.makeUniqueKey(fd.getName(), fd.getDescriptor()));
} else {
initializer =
wrapper
.getDynamicFieldInitializers()
.getWithKey(InterpreterUtil.makeUniqueKey(fd.getName(), fd.getDescriptor()));
}
if (initializer != null) {
if (isEnum && initializer.type == Exprent.EXPRENT_NEW) {
NewExprent nexpr = (NewExprent) initializer;
nexpr.setEnumConst(true);
buffer.append(nexpr.toJava(indent, tracer));
} else {
buffer.append(" = ");
// FIXME: special case field initializer. Can map to more than one method (constructor) and
// bytecode intruction.
buffer.append(initializer.toJava(indent, tracer));
}
} else if (fd.hasModifier(CodeConstants.ACC_FINAL)
&& fd.hasModifier(CodeConstants.ACC_STATIC)) {
StructConstantValueAttribute attr =
(StructConstantValueAttribute)
fd.getAttributes().getWithKey(StructGeneralAttribute.ATTRIBUTE_CONSTANT_VALUE);
if (attr != null) {
PrimitiveConstant constant = cl.getPool().getPrimitiveConstant(attr.getIndex());
buffer.append(" = ");
buffer.append(new ConstExprent(fieldType, constant.value, null).toJava(indent, tracer));
}
}
if (!isEnum) {
buffer.append(";").appendLineSeparator();
tracer.incrementCurrentSourceLine();
}
}
private void writeClassDefinition(ClassNode node, TextBuffer buffer, int indent) {
if (node.type == ClassNode.CLASS_ANONYMOUS) {
buffer.append(" {").appendLineSeparator();
return;
}
ClassWrapper wrapper = node.getWrapper();
StructClass cl = wrapper.getClassStruct();
int flags = node.type == ClassNode.CLASS_ROOT ? cl.getAccessFlags() : node.access;
boolean isDeprecated = cl.getAttributes().containsKey("Deprecated");
boolean isSynthetic =
(flags & CodeConstants.ACC_SYNTHETIC) != 0 || cl.getAttributes().containsKey("Synthetic");
boolean isEnum =
DecompilerContext.getOption(IFernflowerPreferences.DECOMPILE_ENUM)
&& (flags & CodeConstants.ACC_ENUM) != 0;
boolean isInterface = (flags & CodeConstants.ACC_INTERFACE) != 0;
boolean isAnnotation = (flags & CodeConstants.ACC_ANNOTATION) != 0;
if (isDeprecated) {
appendDeprecation(buffer, indent);
}
if (interceptor != null) {
String oldName = interceptor.getOldName(cl.qualifiedName);
appendRenameComment(buffer, oldName, MType.CLASS, indent);
}
if (isSynthetic) {
appendComment(buffer, "synthetic class", indent);
}
appendAnnotations(buffer, cl, indent);
buffer.appendIndent(indent);
if (isEnum) {
// remove abstract and final flags (JLS 8.9 Enums)
flags &= ~CodeConstants.ACC_ABSTRACT;
flags &= ~CodeConstants.ACC_FINAL;
}
appendModifiers(buffer, flags, CLASS_ALLOWED, isInterface, CLASS_EXCLUDED);
if (isEnum) {
buffer.append("enum ");
} else if (isInterface) {
if (isAnnotation) {
buffer.append('@');
}
buffer.append("interface ");
} else {
buffer.append("class ");
}
GenericClassDescriptor descriptor = null;
if (DecompilerContext.getOption(IFernflowerPreferences.DECOMPILE_GENERIC_SIGNATURES)) {
StructGenericSignatureAttribute attr =
(StructGenericSignatureAttribute) cl.getAttributes().getWithKey("Signature");
if (attr != null) {
descriptor = GenericMain.parseClassSignature(attr.getSignature());
}
}
buffer.append(node.simpleName);
if (descriptor != null && !descriptor.fparameters.isEmpty()) {
appendTypeParameters(buffer, descriptor.fparameters, descriptor.fbounds);
}
buffer.append(' ');
if (!isEnum && !isInterface && cl.superClass != null) {
VarType supertype = new VarType(cl.superClass.getString(), true);
if (!VarType.VARTYPE_OBJECT.equals(supertype)) {
buffer.append("extends ");
if (descriptor != null) {
buffer.append(GenericMain.getGenericCastTypeName(descriptor.superclass));
} else {
buffer.append(ExprProcessor.getCastTypeName(supertype));
}
buffer.append(' ');
}
}
if (!isAnnotation) {
int[] interfaces = cl.getInterfaces();
if (interfaces.length > 0) {
buffer.append(isInterface ? "extends " : "implements ");
for (int i = 0; i < interfaces.length; i++) {
if (i > 0) {
buffer.append(", ");
}
if (descriptor != null) {
buffer.append(GenericMain.getGenericCastTypeName(descriptor.superinterfaces.get(i)));
} else {
buffer.append(ExprProcessor.getCastTypeName(new VarType(cl.getInterface(i), true)));
}
}
buffer.append(' ');
}
}
buffer.append('{').appendLineSeparator();
}
public void classToJava(
ClassNode node, TextBuffer buffer, int indent, BytecodeMappingTracer tracer) {
ClassNode outerNode =
(ClassNode) DecompilerContext.getProperty(DecompilerContext.CURRENT_CLASS_NODE);
DecompilerContext.setProperty(DecompilerContext.CURRENT_CLASS_NODE, node);
int startLine = tracer != null ? tracer.getCurrentSourceLine() : 0;
BytecodeMappingTracer dummy_tracer = new BytecodeMappingTracer(startLine);
try {
// last minute processing
invokeProcessors(node);
ClassWrapper wrapper = node.getWrapper();
StructClass cl = wrapper.getClassStruct();
DecompilerContext.getLogger().startWriteClass(cl.qualifiedName);
// write class definition
int start_class_def = buffer.length();
writeClassDefinition(node, buffer, indent);
// // count lines in class definition the easiest way
// startLine = buffer.substring(start_class_def).toString().split(lineSeparator,
// -1).length - 1;
boolean hasContent = false;
// fields
boolean enumFields = false;
dummy_tracer.incrementCurrentSourceLine(buffer.countLines(start_class_def));
for (StructField fd : cl.getFields()) {
boolean hide =
fd.isSynthetic() && DecompilerContext.getOption(IFernflowerPreferences.REMOVE_SYNTHETIC)
|| wrapper
.getHiddenMembers()
.contains(InterpreterUtil.makeUniqueKey(fd.getName(), fd.getDescriptor()));
if (hide) continue;
boolean isEnum =
fd.hasModifier(CodeConstants.ACC_ENUM)
&& DecompilerContext.getOption(IFernflowerPreferences.DECOMPILE_ENUM);
if (isEnum) {
if (enumFields) {
buffer.append(',').appendLineSeparator();
dummy_tracer.incrementCurrentSourceLine();
}
enumFields = true;
} else if (enumFields) {
buffer.append(';');
buffer.appendLineSeparator();
buffer.appendLineSeparator();
dummy_tracer.incrementCurrentSourceLine(2);
enumFields = false;
}
fieldToJava(wrapper, cl, fd, buffer, indent + 1, dummy_tracer); // FIXME: insert real tracer
hasContent = true;
}
if (enumFields) {
buffer.append(';').appendLineSeparator();
dummy_tracer.incrementCurrentSourceLine();
}
// FIXME: fields don't matter at the moment
startLine += buffer.countLines(start_class_def);
// methods
for (StructMethod mt : cl.getMethods()) {
boolean hide =
mt.isSynthetic() && DecompilerContext.getOption(IFernflowerPreferences.REMOVE_SYNTHETIC)
|| mt.hasModifier(CodeConstants.ACC_BRIDGE)
&& DecompilerContext.getOption(IFernflowerPreferences.REMOVE_BRIDGE)
|| wrapper
.getHiddenMembers()
.contains(InterpreterUtil.makeUniqueKey(mt.getName(), mt.getDescriptor()));
if (hide) continue;
int position = buffer.length();
int storedLine = startLine;
if (hasContent) {
buffer.appendLineSeparator();
startLine++;
}
BytecodeMappingTracer method_tracer = new BytecodeMappingTracer(startLine);
boolean methodSkipped = !methodToJava(node, mt, buffer, indent + 1, method_tracer);
if (!methodSkipped) {
hasContent = true;
addTracer(cl, mt, method_tracer);
startLine = method_tracer.getCurrentSourceLine();
} else {
buffer.setLength(position);
startLine = storedLine;
}
}
// member classes
for (ClassNode inner : node.nested) {
if (inner.type == ClassNode.CLASS_MEMBER) {
StructClass innerCl = inner.classStruct;
boolean isSynthetic =
(inner.access & CodeConstants.ACC_SYNTHETIC) != 0
|| innerCl.isSynthetic()
|| inner.namelessConstructorStub;
boolean hide =
isSynthetic && DecompilerContext.getOption(IFernflowerPreferences.REMOVE_SYNTHETIC)
|| wrapper.getHiddenMembers().contains(innerCl.qualifiedName);
if (hide) continue;
if (hasContent) {
buffer.appendLineSeparator();
startLine++;
}
BytecodeMappingTracer class_tracer = new BytecodeMappingTracer(startLine);
classToJava(inner, buffer, indent + 1, class_tracer);
startLine = buffer.countLines();
hasContent = true;
}
}
buffer.appendIndent(indent).append('}');
if (node.type != ClassNode.CLASS_ANONYMOUS) {
buffer.appendLineSeparator();
}
} finally {
DecompilerContext.setProperty(DecompilerContext.CURRENT_CLASS_NODE, outerNode);
}
DecompilerContext.getLogger().endWriteClass();
}