/// <summary>
/// Get's the namespace of the given type after conversion.
/// </summary>
public string GetConvertedNamespace(XTypeDefinition type)
{
if (type.IsNested)
{
return GetConvertedNamespace(type.DeclaringType);
}
var ns = type.Namespace;
return ConvertNamespace(ns);
}
/// <summary>
/// Create the current type as class definition.
/// </summary>
protected override void CreateClassDefinition(DexTargetPackage targetPackage, ClassDefinition parent, TypeDefinition parentType, XTypeDefinition parentXType)
{
base.CreateClassDefinition(targetPackage, parent, parentType, parentXType);
Class.AccessFlags &= ~AccessFlags.Final;
Class.IsAbstract = true;
//Class.IsInterface = true;
// Record in compiler
Compiler.Record(new DelegateType(Compiler, XType, Class, targetPackage.DexFile, targetPackage.NameConverter));
}
/// <summary>
/// Default ctor
/// </summary>
public DelegateType(AssemblyCompiler compiler, XTypeDefinition delegateType, ClassDefinition interfaceClass, Dex target, NameConverter nsConverter)
{
this.compiler = compiler;
this.delegateType = delegateType;
this.interfaceClass = interfaceClass;
// Build invoke prototype
invokeMethod = delegateType.Methods.First(x => x.EqualsName("Invoke"));
}
/// <summary>
/// Is the given type a struct?
/// </summary>
public static bool IsStruct(this XTypeReference type, out XTypeDefinition typeDef)
{
typeDef = null;
if (type == null)
{
return(false);
}
return(type.TryResolve(out typeDef) && typeDef.IsStruct);
}
/// <summary>
/// .NET ctor
/// </summary>
public DecompilerContext(XMethodDefinition currentMethod)
{
if (currentMethod == null)
throw new ArgumentNullException("currentMethod");
name = currentMethod.Name;
declaringTypeName = currentMethod.DeclaringType.Name;
declaringType = currentMethod.DeclaringType;
returnType = currentMethod.ReturnType;
currentModule = currentMethod.Module;
}
/// <summary>
/// Default ctor
/// </summary>
public AstBuilder(XModule module, MethodDefinition methodDef, XTypeDefinition declaringType, bool optimize)
{
this.module = module;
typeSystem = module.TypeSystem;
this.methodDef = methodDef;
this.declaringType = declaringType;
this.optimize = optimize;
codeAttr = methodDef.Attributes.OfType<CodeAttribute>().FirstOrDefault();
validExceptionHandlers = (codeAttr != null) ? codeAttr.ExceptionHandlers.Where(IsValid).ToList() : null;
}
/// <summary>
/// Is the given type an enum?
/// </summary>
public static bool IsEnum(this XTypeReference type, out XTypeDefinition typeDef)
{
typeDef = null;
if (type == null)
{
return(false);
}
type = type.GetWithoutModifiers();
return(type.TryResolve(out typeDef) && typeDef.IsEnum);
}
public override void Create(ClassDefinition declaringClass, XTypeDefinition declaringType, DexTargetPackage targetPackage)
{
if (_baseFieldBuilder.dfield == null)
return;
// can't create udater for static fields.
if (field.IsStatic)
return;
var updaterType = GetAtomicFieldUpdaterType(field.FieldType);
if (updaterType == null)
return;
var fullUpdateTypeName = "Java.Util.Concurrent.Atomic." + updaterType;
// create matching xField. Note: this seems to be a hack. what to do?
var objType = new ObjectTypeReference(fullUpdateTypeName, new TypeArgument[0]);
var javaTypeReference = new XBuilder.JavaTypeReference(Compiler.Module, objType, objType.ClassName);
var basexField = _baseFieldBuilder.xField;
var basedField = _baseFieldBuilder.dfield;
var fieldName = basedField.Name + NameConstants.Atomic.FieldUpdaterPostfix;
var xflags = XSyntheticFieldFlags.Static | XSyntheticFieldFlags.ReadOnly;
if (basedField.IsProtected)
xflags |= XSyntheticFieldFlags.Protected;
if (basedField.IsPrivate)
xflags |= XSyntheticFieldFlags.Private;
var xAtomicField = XSyntheticFieldDefinition.Create(basexField.DeclaringType, xflags, fieldName, javaTypeReference);
xField = xAtomicField;
// create dfield.
dfield = new DexLib.FieldDefinition
{
Name = fieldName,
IsStatic = true,
IsFinal = true,
IsSynthetic = true,
// same access as the original field.
IsPublic = basedField.IsPublic,
IsPrivate = basedField.IsPrivate,
IsProtected = basedField.IsProtected,
};
AddFieldToDeclaringClass(declaringClass, dfield, targetPackage);
targetPackage.NameConverter.Record(xField, dfield);
}
/// <summary>
/// Gets the type with the given namespace and name.
/// </summary>
public bool TryGetType(string fullName, out XTypeDefinition type)
{
FullNameCacheEntry e;
if (fullNameCache.TryGetValue(fullName, out e))
{
type = e.Type;
return(true);
}
type = null;
return(false);
}
/// <summary>
/// Create the current type as class definition.
/// </summary>
public virtual void Create(ClassDefinition declaringClass, XTypeDefinition declaringType, DexTargetPackage targetPackage)
{
// Find xfield
xField = XBuilder.AsFieldDefinition(compiler.Module, field);
// Create field definition
dfield = new Dot42.DexLib.FieldDefinition();
dfield.Name = NameConverter.GetConvertedName(field);
AddFieldToDeclaringClass(declaringClass, dfield, targetPackage);
targetPackage.NameConverter.Record(xField, dfield);
// Set access flags
SetAccessFlags(dfield, field);
// Give warning if static in generic class.
// This could of cause also be handled automagically be the compiler,
// with mixture of whats done in the Interlocked converter and whats
// done in the GenericInstanceConverter.
if (field.IsStatic && declaringType.IsGenericClass)
{
if (!field.HasSuppressMessageAttribute("StaticFieldInGenericType")
&& !field.DeclaringType.HasSuppressMessageAttribute("StaticFieldInGenericType"))
{
string msg;
if (field.Name.Contains("CachedAnonymousMethodDelegate"))
msg = "The compiler generated a static field '{0}' in generic type '{1}'. This is not supported " +
"in Dot42 if the anonymous delegate accesses a generic class parameter. A workaround " +
"is to convert the anonymous static delegate to a normal method.\n";
else
msg = "Static field '{0}' in generic type {1}: All generic instances will share " +
"the same static field, contrary on how CLR operates. A workaround is to " +
"use ConcurrentDictionaries to access the values dependent on the type.\n";
msg += "You can suppress this warning with a [SuppressMessage(\"dot42\"," +
" \"StaticFieldInGenericType\")] attribute, either on the field or on the class.";
var body = field.DeclaringType.Methods.Select(m => m.Body)
.FirstOrDefault(m => m != null
&& m.Instructions.Any(i => i.SequencePoint != null));
if (body != null)
{
var seqPoint = body.Instructions.Select(i=>i.SequencePoint).First(i => i != null);
DLog.Warning(DContext.CompilerILConverter, seqPoint.Document.Url, seqPoint.StartColumn, seqPoint.StartLine, msg, field.Name, declaringType.FullName);
}
else
{
DLog.Warning(DContext.CompilerILConverter, msg, field.Name, declaringType.FullName);
}
}
}
}
protected override XTypeDefinition CreateXType(XTypeDefinition parentXType)
{
var typeDef = (XBuilder.ILTypeDefinition)XBuilder.AsTypeReference(Compiler.Module, Type)
.Resolve();
string name = NameConverter.GetNullableClassName(typeDef.Name);
XSyntheticTypeFlags xflags = default(XSyntheticTypeFlags);
return XSyntheticTypeDefinition.Create(Compiler.Module, parentXType, xflags,
typeDef.Namespace, name,
Compiler.Module.TypeSystem.Object,
string.Join(":", Type.Scope.Name, Type.MetadataToken.ToScopeId(), "Nullable"));
}
protected override void CreateClassDefinition(DexTargetPackage targetPackage, ClassDefinition parent,
TypeDefinition parentType,
XTypeDefinition parentXType)
{
base.CreateClassDefinition(targetPackage, parent, parentType, parentXType);
if (IsDot42InternalApplication())
{
// FixUp Visiblility.
Class.IsPublic = true;
Class.IsProtected = false;
Class.IsPrivate = false;
}
}
/// <summary>
/// Create the current type as class definition.
/// </summary>
public void Create(ClassDefinition declaringClass, XTypeDefinition declaringType, DexTargetPackage targetPackage)
{
// Find xfield
xField = XBuilder.AsFieldDefinition(compiler.Module, field);
// Create field definition
dfield = new Dot42.DexLib.FieldDefinition();
dfield.Name = NameConverter.GetConvertedName(field);
AddFieldToDeclaringClass(declaringClass, dfield, targetPackage);
targetPackage.NameConverter.Record(xField, dfield);
// Set access flags
SetAccessFlags(dfield, field);
}
private XMethodDefinition FindMethod(XTypeDefinition delegateType, string methodName)
{
while (true)
{
var ret = delegateType.Methods.FirstOrDefault(x => x.EqualsName(methodName));
if (ret != null)
return ret;
var baseType = delegateType.BaseType;
if (baseType == null)
return null;
delegateType = baseType.Resolve();
}
}
/// <summary>
/// Resolve this reference to it's definition.
/// </summary>
public virtual bool TryResolve(out XTypeDefinition type)
{
if (resolvedType != null)
{
type = resolvedType;
return(true);
}
if (!Module.TryGetType(FullName, out type))
{
return(false);
}
// Cache for later
resolvedType = type;
type.AddFlushAction(() => resolvedType = null);
return(true);
}
/// <summary>
/// Try to get a type definition (me or one of my nested typed) by the given full name.
/// </summary>
public virtual bool TryGet(string fullName, bool noImports, out XTypeDefinition type)
{
if (FullName == fullName)
{
type = this;
return(true);
}
foreach (var nested in NestedTypes)
{
if (nested.TryGet(fullName, noImports, out type))
{
return(true);
}
}
type = null;
return(false);
}
/// <summary>
/// Default ctor
/// </summary>
public DelegateType(AssemblyCompiler compiler, XTypeDefinition delegateType, ClassDefinition interfaceClass, Dex target, NameConverter nsConverter)
{
this.compiler = compiler;
this.delegateType = delegateType;
this.interfaceClass = interfaceClass;
// Build invoke prototype
invokeMethod = delegateType.Methods.First(x => x.EqualsName("Invoke"));
XTypeDefinition baseType = delegateType;
while ((null != baseType) && !baseType.Methods.Any(x => x.EqualsName("Equals")))
{
baseType = baseType.BaseType as XTypeDefinition;
}
if (null != baseType)
{
equalsMethod = baseType.Methods.First(x => x.EqualsName("Equals"));
}
}
/// <summary>
/// Add the given type to my list.
/// </summary>
internal void Register(XTypeDefinition type, string overrideFullName = null)
{
Register(type, overrideFullName, false);
string className;
if (type.TryGetDexImportNames(out className))
{
var typeRef = Java.XBuilder.AsTypeReference(this, className, XTypeUsageFlags.DeclaringType);
Register(type, typeRef.FullName, true);
}
if (type.TryGetJavaImportNames(out className))
{
var typeRef = Java.XBuilder.AsTypeReference(this, className, XTypeUsageFlags.DeclaringType);
Register(type, typeRef.FullName, true);
}
}
/// <summary>
/// Does the given type extend from System.MulticastDelegate?
/// </summary>
public static bool IsDelegate(this XTypeDefinition type)
{
while (true)
{
var baseType = type.BaseType;
if (baseType == null)
{
break;
}
if (!baseType.TryResolve(out type))
{
break;
}
if (type.FullName == typeof(System.MulticastDelegate).FullName)
{
return(true);
}
}
return(false);
}
/// <summary>
/// Is the given type a base class of the given child?
/// </summary>
public static bool IsBaseOf(this XTypeDefinition type, XTypeDefinition child)
{
while (child != null)
{
if (child.BaseType == null)
{
return(false);
}
XTypeDefinition baseType;
if (!child.BaseType.TryResolve(out baseType))
{
return(false);
}
if (baseType.IsSame(type))
{
return(true);
}
child = baseType;
}
return(false);
}
private void Register(XTypeDefinition type, string overridenName, bool isImport)
{
// scopeId must be unique
if (scopeIdCache.ContainsKey(type.ScopeId) && scopeIdCache[type.ScopeId] != type)
{
if (type is XBuilder.JavaTypeDefinition)
{
// FixMe. Java TypeDefinitions get created multiple times.
//Debugger.Break();
}
else
{
throw new Exception("scopeId not unique for " + type.ScopeId);
}
}
scopeIdCache[type.ScopeId] = type;
var fullname = overridenName ?? type.FullName;
FullNameCacheEntry e;
if (fullNameCache.TryGetValue(fullname, out e))
{
if (e.Priority < type.Priority)
{
return;
}
// new priority is higher or equal,
// but we must not override a non-import type.
if (isImport && !e.IsImport)
{
return;
}
}
fullNameCache[fullname] = new FullNameCacheEntry(type, type.Priority, isImport);
}
/// <summary>
/// Gets the type with the given namespace and name.
/// </summary>
public bool TryGetType(string fullName, out XTypeDefinition type)
{
if (fullNameCache.TryGetValue(fullName, out type))
{
return(true);
}
for (var attempt = 0; attempt < 2; attempt++)
{
var noImports = (attempt == 0);
sortedTypes = sortedTypes ?? types.OrderBy(x => x.Priority).ToList();
foreach (var t in sortedTypes)
{
if (t.TryGet(fullName, noImports, out type))
{
fullNameCache[fullName] = type;
return(true);
}
}
}
type = null;
return(false);
}
/// <summary>
/// Create the classname for the Nullable base class for the given type.
/// </summary>
public static string GetNullableBaseClassName(XTypeDefinition type)
{
return type.Name + "__Nullable";
}
/// <summary>
/// Resolve this reference to it's definition.
/// </summary>
public override bool TryResolve(out XTypeDefinition type)
{
type = null;
return(false);
}
/// <summary>
/// Create the classname for the Nullable base class for the given type.
/// </summary>
public static string GetNullableClassName(XTypeDefinition type)
{
return GetNullableClassName(type.Name);
}
public FullNameCacheEntry(XTypeDefinition type, int priority, bool isImport)
{
Type = type;
Priority = priority;
IsImport = isImport;
}
/// <summary>
/// Default ctor
/// </summary>
protected XTypeDefinition(XModule module, XTypeDefinition declaringType, bool isValueType, IEnumerable<string> genericParameterNames)
: base(module, declaringType, isValueType, genericParameterNames)
{
}
/// <summary>
/// Create the current type as class definition.
/// </summary>
protected override void CreateClassDefinition(DexTargetPackage targetPackage, ClassDefinition parent, TypeDefinition parentType, XTypeDefinition parentXType)
{
base.CreateClassDefinition(targetPackage, parent, parentType, parentXType);
XType.SetDexClass(Class, targetPackage);
}
/// <summary>
/// Gets the default constructor of the given value type.
/// Throws an exception if not found.
/// </summary>
internal static XMethodDefinition GetDefaultValueCtor(XTypeDefinition valueType)
{
var defaultCtor = valueType.Methods.FirstOrDefault(x => x.IsConstructor && !x.IsStatic && (x.Parameters.Count == 0));
if (defaultCtor == null)
throw new NotImplementedException(string.Format("Value type {0} has no default ctor", valueType.FullName));
return defaultCtor;
}
/// <summary>
/// Resolve this reference to it's definition.
/// </summary>
public override bool TryResolve(out XTypeDefinition type)
{
return ElementType.TryResolve(out type);
}
/// <summary>
/// Convert an argument or a numeric operation to int/long.
/// </summary>
private static void ConvertNumericOpArgument(AstExpression node, int argumentIndex, XTypeDefinition enumType, bool isWide, XTypeReference enumNumericType)
{
var module = enumType.Module;
var argument = node.Arguments[argumentIndex];
switch (argument.Code)
{
case AstCode.Ldc_I4:
// Keep numeric value
argument.SetType(module.TypeSystem.Int);
break;
case AstCode.Ldc_I8:
// Keep numeric value
argument.SetType(module.TypeSystem.Long);
break;
default:
// Convert enum to numeric
var numericValue = new AstExpression(argument);
argument.SetCode(isWide ? AstCode.Enum_to_long : AstCode.Enum_to_int)
.SetType(enumNumericType)
.SetArguments(numericValue);
break;
}
}
/// <summary>
/// Convert the given node that holds a numeric value and convert it to it's enum instance.
/// </summary>
private static void ConvertNumericToEnum(AstExpression node, XTypeDefinition enumType, XTypeReference enumNumericType)
{
// Call Enum.GetValue(enumType, value)
var enumValue = new AstExpression(node);
node.SetCode(enumNumericType.IsWide() ? AstCode.Long_to_enum : AstCode.Int_to_enum).SetArguments(enumValue).SetType(enumType);
node.Operand = null;
}
/// <summary>
/// Convert a integer compare operation (bge, bgt, ble, blt) with enum argument.
/// </summary>
private static void ConvertICmpArgument(AstExpression node, int argIndex, XTypeDefinition enumType, AssemblyCompiler compiler)
{
Debug.Assert(node.Arguments.Count == 2);
var isWide = enumType.GetEnumUnderlyingType().IsWide();
var module = compiler.Module;
var retType = isWide ? module.TypeSystem.Long : module.TypeSystem.Int;
// Convert arguments
ConvertNumericOpArgument(node, argIndex, enumType, isWide, retType);
}
/// <summary>
/// Convert a binary operation (Add, Sub, Mul, Div, Rem, And, Or, Xor) resulting in an enum.
/// </summary>
private static void ConvertBinOp(AstExpression node, XTypeDefinition enumType, AssemblyCompiler compiler)
{
Debug.Assert(node.Arguments.Count == 2);
var isWide = enumType.GetEnumUnderlyingType().IsWide();
var module = compiler.Module;
var retType = isWide ? module.TypeSystem.Long : module.TypeSystem.Int;
// Convert arguments
ConvertNumericOpArgument(node, 0, enumType, isWide, retType);
ConvertNumericOpArgument(node, 1, enumType, isWide, retType);
// Convert return value
if ((node.ExpectedType == null) || (!node.ExpectedType.IsPrimitive))
{
ConvertNumericToEnum(node, enumType, retType);
}
else
{
node.InferredType = retType;
}
}
/// <summary>
/// Add the given type to my list.
/// </summary>
private void Add(XTypeDefinition type)
{
types.Add(type);
sortedTypes = null;
}
/// <summary>
/// Gets a formatted full classname for the given type.
/// </summary>
private string FormatClassName(XTypeDefinition typeDef)
{
string className;
if (typeDef.TryGetDexImportNames(out className))
return FormatImportedClassName(className);
if (typeDef.TryGetJavaImportNames(out className))
return FormatImportedClassName(className);
return nsConverter.GetConvertedFullName(typeDef);
}
/// <summary>
/// Gets the struct $CopyFrom method of the given value type.
/// Throws an exception if not found.
/// </summary>
private static XMethodDefinition GetCopyFromMethod(XTypeDefinition valueType)
{
var method = valueType.Methods.FirstOrDefault(x => !x.IsStatic && (x.Parameters.Count == 1) && (x.Name == NameConstants.Struct.CopyFromMethodName));
if (method == null)
throw new NotImplementedException(string.Format("Value type {0} has no struct copyFrom method", valueType.FullName));
return method;
}
/// <summary>
/// Resolve this reference to it's definition.
/// </summary>
public override bool TryResolve(out XTypeDefinition type)
{
return(ElementType.TryResolve(out type));
}
/// <summary>
/// Mark is as an annotation
/// </summary>
protected override void CreateClassDefinition(DexTargetPackage targetPackage, ClassDefinition parent, TypeDefinition parentType, XTypeDefinition parentXType)
{
base.CreateClassDefinition(targetPackage, parent, parentType, parentXType);
Class.AccessFlags |= AccessFlags.Annotation;
}
/// <summary>
/// Resolve this reference to it's definition.
/// </summary>
public override bool TryResolve(out XTypeDefinition type)
{
type = this;
return true;
}
/// <summary>
/// Create the current type as class definition.
/// </summary>
protected override void CreateClassDefinition(DexTargetPackage targetPackage, ClassDefinition parent, TypeDefinition parentType, XTypeDefinition parentXType)
{
// Do not create a class.
// It already exists in the framework.
}
/// <summary>
/// Create the XType for this builder.
/// </summary>
protected override XTypeDefinition CreateXType(XTypeDefinition parentXType)
{
var baseType = Compiler.GetDot42InternalType("EnumInfo");
return XSyntheticTypeDefinition.Create(Compiler.Module, parentXType, XSyntheticTypeFlags.Private, null, ClassName,
baseType, parentXType.ScopeId + ":Info");
}
/// <summary>
/// Default ctor
/// </summary>
protected XMethodDefinition(XTypeDefinition declaringType)
: base(declaringType)
{
}
/// <summary>
/// Get's the full name of the given type after conversion.
/// </summary>
public string GetConvertedFullName(XTypeDefinition type)
{
if (type.IsNested)
{
var declaringTypeName = GetConvertedFullName(type.DeclaringType);
return declaringTypeName + Dex.NestedClassSeparator + GetConvertedName(type);
}
var ns = GetConvertedNamespace(type);
return ns + '.' + GetConvertedName(type);
}
/// <summary>
/// Default ctor
/// </summary>
protected XTypeDefinition(XModule module, XTypeDefinition declaringType, bool isValueType, IEnumerable <string> genericParameterNames)
: base(module, declaringType, isValueType, genericParameterNames)
{
}
/// <summary>
/// Resolve this reference to it's definition.
/// </summary>
public override bool TryResolve(out XTypeDefinition type)
{
type = this;
return(true);
}
/// <summary>
/// Gets the recorded delegate type for the given .NET delegate type.
/// </summary>
internal DelegateType GetDelegateType(XTypeDefinition type)
{
DelegateType result;
if (delegateTypes.TryGetValue(type, out result))
return result;
throw new ArgumentException(string.Format("No delegate type found for {0}", type.FullName));
}