/// <summary>
/// Gets the attributes of the given type.
/// </summary>
/// <typeparam name="T">The type of the attributes.</typeparam>
/// <param name="jm">The java method.</param>
/// <returns>The attributes of the given type.</returns>
public static T[] GetAttributes <T>(this JavaMethod jm)
where T : IJavaAttribute
{
Guard.NotNull(ref jm, nameof(jm));
return(jm.Attributes.Where(x => x is T).Select(x => (T)x).ToArray());
}
public JavaMethod ResoverMethod()
{
if (this.Method != null)
{
return(this.Method);
}
var d = this.ConstantPool.Class;
var c = this.ResoverClass();
if (!c.IsInterface())
{
throw new Exception();
}
var result = FindMethodInInterface(c);
if (result == null)
{
throw new Exception();
}
if (!result.IsAccessTo(d))
{
throw new Exception();
}
this.Method = result;
return(result);
}
IEnumerable <ApiComparisonReport> CompareMethod(JavaMethod rm, JavaMethod tm)
{
return(Enumerable.Empty <ApiComparisonReport> ()
// .Concat (CompareProperty (nameof (rf.Deprecated), rf, tf, _ => _.Deprecated))
.Concat(CompareProperty(nameof(rm.Abstract), rm, tm, _ => _.Abstract))
.Concat(CompareProperty(nameof(rm.Static), rm, tm, _ => _.Static)));
}
/// <summary>
/// Gets the descriptor of a method.
/// </summary>
/// <param name="jm">The java method.</param>
/// <param name="jc">The java class.</param>
/// <returns>The descriptor of the java method.</returns>
public static string GetDescriptor(this JavaMethod jm, JavaClass jc)
{
Guard.NotNull(ref jc, nameof(jc));
Guard.NotNull(ref jm, nameof(jm));
return(jc.GetConstant <JavaConstantUtf8>(jm.DescriptorIndex).Value);
}
public void AddForeignMethod(ForeignMethod fm, ExpandInterceptor expandInterceptor)
{
var jmtd = new JavaMethod(fm, _helpers, _convert, expandInterceptor, _environment);
_methods.Add(jmtd);
_blockHost.NativeJavaMethods.Add(jmtd.GenJavaEntrypointMethod(this));
}
public unsafe void RunClient()
{
Console.WriteLine("Launching Hardware Monitor Editor");
JavaMethod nativeLaunch = jvm.GetStaticVoidMethod(APPLICATION_CORE_CLASS_PATH, APPLICATION_CORE_LAUNCH_APPLICATION_FUNCTION);
jvm.CallStaticVoidMethod(nativeLaunch);
}
static bool SkipMethodByReturnType(JavaMethod method)
{
// discard bridge methods that only change the return types
int n = method.Parameters?.Count ?? 0;
foreach (var otherMethod in method.Class.Methods)
{
if (otherMethod != method && otherMethod.Name == method.Name && method.Name != "<init>")
{
int n2 = otherMethod.Parameters?.Count ?? 0;
if (n == n2)
{
bool same = true;
for (int i = 0; i < n && same; i++)
{
same = method.Parameters[i].Type.Equals(otherMethod.Parameters[i].Type);
}
if (same)
{
if (method.ReturnType.ClassName != method.Class.Name &&
otherMethod.ReturnType.ClassName == method.Class.Name)
{
return(true);
}
}
}
}
}
return(false);
}
/// <summary>
/// Gets the attribute of the given type.
/// </summary>
/// <typeparam name="T">The type of the attribute.</typeparam>
/// <param name="jm">The java method.</param>
/// <returns>The attribute of the given type.</returns>
public static T GetAttribute <T>(this JavaMethod jm)
where T : IJavaAttribute
{
Guard.NotNull(ref jm, nameof(jm));
return(jm.GetAttributes <T>().FirstOrDefault());
}
void LoadDll(string file, string sourceIdentifier = null)
{
foreach (var ta in AssemblyDefinition.ReadAssembly(file).Modules.SelectMany(m => m.Types.SelectMany(t => FlattenTypeHierarchy(t)))
.Where(ta => !ta.Name.EndsWith("Invoker", StringComparison.Ordinal) && !ta.Name.EndsWith("Implementor", StringComparison.Ordinal))
.Select(t => new Tuple <TypeDefinition, CustomAttribute> (t, GetRegisteredAttribute(t)))
.Where(p => p.Item2 != null))
{
var td = ta.Item1;
var tatt = PopulateRegisterAttributeInfo(ta.Item2, true);
var pkg = Api.Packages.FirstOrDefault(p => p.Name == tatt.Package);
if (pkg == null)
{
Api.Packages.Add(pkg = new JavaPackage(Api)
{
Name = tatt.Package
});
}
var type = td.IsInterface ? (JavaType) new JavaInterface(pkg) : new JavaClass(pkg);
type.Name = tatt.Name;
type.SetExtension(td);
pkg.Types.Add(type);
foreach (var fa in td.Fields
.Select(f => new Tuple <FieldDefinition, CustomAttribute> (f, GetRegisteredAttribute(f)))
.Where(p => p.Item2 != null))
{
var matt = PopulateRegisterAttributeInfo(fa.Item2);
var f = new JavaField(type)
{
Name = matt.Name, Static = fa.Item1.IsStatic, Final = fa.Item1.HasConstant
};
f.SetExtension(fa.Item1);
type.Members.Add(f);
}
foreach (var ma in GetAllMethods(td)
.Where(m => m != null)
.Select(m => new Tuple <MethodDefinition, CustomAttribute> (m, GetRegisteredAttribute(m)))
.Where(p => p.Item2 != null))
{
var matt = PopulateRegisterAttributeInfo(ma.Item2);
var m = new JavaMethod(type)
{
Name = matt.Name, Abstract = ma.Item1.IsAbstract, Static = ma.Item1.IsStatic
};
var jniParameters = matt.JniSignature.Substring(0, matt.JniSignature.IndexOf(')')).Substring(1);
m.Return = ParseJniParameters(matt.JniSignature.Substring(matt.JniSignature.IndexOf(')') + 1)).First();
m.Parameters = ParseJniParameters(jniParameters)
.Zip(ma.Item1.Parameters, (s, mp) => new { Type = s, ManagedParameter = mp })
.Select(_ => new JavaParameter(m)
{
Name = _.ManagedParameter.Name, Type = _.Type
})
.ToArray();
m.SetExtension(ma.Item1);
type.Members.Add(m);
}
}
FillSourceIdentifier(Api, sourceIdentifier ?? file);
}
/// <summary>
/// Gets the return type of a method.
/// </summary>
/// <param name="jm">The java method.</param>
/// <param name="jc">The java class.</param>
/// <returns>The return type of the java method.</returns>
public static string GetReturnType(this JavaMethod jm, JavaClass jc)
{
Guard.NotNull(ref jc, nameof(jc));
Guard.NotNull(ref jm, nameof(jm));
string descriptor = jm.GetDescriptor(jc);
return(DescriptorHelper.GetReturn(descriptor));
}
public static MetadataJavaMethod ToMetadata(this JavaMethod method)
{
return(new MetadataJavaMethod
{
AccessFlags = (JavaAccessFlags)method.Flags,
ReturnType = method.Type.GetSignature(),
Name = method.Name,
Parameters = method.Parameters.Select(p => p.ToMetadata()).ToArray()
});
}
internal static void BuildJavaCode(JavaMethod newMethod, CilMethod myMethod,
MethodDefinition defMethod, int numCastableInterfaces)
{
var body = defMethod.Body;
if (body.Instructions.Count == 0)
{
throw CilMain.Where.Exception("input method is empty");
}
if (body.Instructions[body.Instructions.Count - 1].Offset > 0xFFF0)
{
throw CilMain.Where.Exception("input method is too large");
}
CodeBuilder o = null;
try
{
o = new CodeBuilder();
o.defMethod = defMethod;
o.defMethodBody = defMethod.Body;
o.newMethod = newMethod;
o.method = myMethod;
o.numCastableInterfaces = numCastableInterfaces;
o.Process();
}
catch (Exception e)
{
if (e is JavaException)
{
throw;
}
#if DEBUGDIAG
Console.WriteLine(e);
#endif
if (o != null && o.cilInst != null)
{
if (o.lineNumber != 0)
{
CilMain.Where.Push($"line {o.lineNumber}");
}
CilMain.Where.Push(
$"'{o.cilInst.OpCode.Name}' instruction at offset {o.cilInst.Offset,0:X4}");
}
string msg = e.Message;
if (e is InvalidProgramException)
{
msg = "unexpected opcode or operands";
}
throw CilMain.Where.Exception(msg);
}
}
/// <summary>
/// Reads methods from the stream.
/// </summary>
/// <param name="stream">The stream to read the methods from.</param>
/// <param name="count">The number of methods to read.</param>
/// <param name="constantPool">The constant pool used for finding the attribute names.</param>
/// <returns>The methods read from the stream.</returns>
private static JavaMethod[] ReadMethods(Stream stream, int count, JavaConstantPool constantPool)
{
JavaMethod[] result = new JavaMethod[count];
for (int i = 0; i < count; i++)
{
result[i] = ReadMethod(stream, constantPool);
}
return(result);
}
static CacheInvalidatorCallback()
{
using (Stream resourceStream = Assembly.GetExecutingAssembly().GetManifestResourceStream("Com.MihaiConsulting.Cache.JuggerNET.CacheInvalidatorCallback.class"))
{
Byte[] buffer = new Byte[resourceStream.Length];
resourceStream.Read(buffer, 0, (int)resourceStream.Length);
_cmj_theClass.ByteCode = buffer;
}
_constructor = new JavaMethod(_cmj_theClass, null, "<init>", "(J[J)V", false);
}
private JavaAttributeCode GetCode(JavaMethod method)
{
foreach (IJavaAttribute attribute in method.Attributes)
{
if (attribute is JavaAttributeCode code)
{
return(code);
}
}
throw new Exception("No code attribute found.");
}
public JavaMethod ResoverMethod()
{
if (this.Method != null)
{
return(Method);
}
var d = this.ConstantPool.Class;
var c = this.ResoverClass();
//从d访问c的方法
if (c.IsInterface())
{
throw new Exception();
}
//先从继承链中找
var target = c;
JavaMethod findedMethod = null;
while (target != null)
{
findedMethod = c.Methods.FirstOrDefault(x => x.Name == this.Name && x.Descriptor == this.Desc);
if (findedMethod == null)
{
target = target.SuperClass;
}
else
{
break;
}
}
if (findedMethod == null)
{
foreach (var inte in c.Interfaces)
{
findedMethod = FindMethodInInterface(inte);
if (findedMethod != null)
{
break;
}
}
}
if (findedMethod == null)
{
throw new Exception();
}
if (!findedMethod.IsAccessTo(d))
{
throw new Exception();
}
Method = findedMethod;
return(findedMethod);
}
/// <summary>
/// Initializes the <see cref="CacheChannelEventListenerCallback" /> class.
/// </summary>
static CacheChannelEventListenerCallback()
{
// Load the Java callback class bytecode from Com.Tridion.Cache.CacheChannelEventListenerCallback
using (Stream resourceStream = Assembly.GetExecutingAssembly().GetManifestResourceStream(typeof(CacheChannelEventListenerCallback), "CacheChannelEventListenerCallback"))
{
Byte[] buffer = new Byte[resourceStream.Length];
resourceStream.Read(buffer, 0, (int)resourceStream.Length);
_cmj_theClass.ByteCode = buffer;
}
mConstructor = new JavaMethod(_cmj_theClass, null, "<init>", "(J[J)V", false);
}
/// <summary>
/// Initializes the <see cref="CacheChannelEventListenerCallback" /> class.
/// </summary>
static CacheChannelEventListenerCallback()
{
// Load the Java callback class bytecode from Com.Tridion.Cache.CacheChannelEventListenerCallback
using (Stream resourceStream = Assembly.GetExecutingAssembly().GetManifestResourceStream(typeof(CacheChannelEventListenerCallback), "CacheChannelEventListenerCallback"))
{
Byte[] buffer = new Byte[resourceStream.Length];
resourceStream.Read(buffer, 0, (int)resourceStream.Length);
_cmj_theClass.ByteCode = buffer;
}
mConstructor = new JavaMethod(_cmj_theClass, null, "<init>", "(J[J)V", false);
}
private static IReadOnlyCollection <JavaMethod> GetJavaMethods(JavaClass javaClass)
{
var methods = new List <JavaMethod>();
foreach (var method in javaClass.Methods)
{
var javaMethod = new JavaMethod();
javaMethod.MethodName = method.NameAsStr;
javaMethod.Signature = GetMethodSignature(javaClass, method);
methods.Add(javaMethod);
}
return(new ReadOnlyCollection <JavaMethod>(methods));
}
private static void EmitMethod(MethodDefinition method, JavaClass jc, JavaMethod jm)
{
ModuleDefinition module = method.Module;
string[] parameterTypes = jm.GetParameterTypes(jc);
byte[] code = jm.GetCode();
ILProcessor il = method.Body?.GetILProcessor();
if (il != null && code != null)
{
new IlEmitter(il, module).EmitMethod(jc, code, method.IsStatic, parameterTypes);
}
}
public unsafe void UpdateNative(IntPtr env, IntPtr clazz)
{
UpdateSensors();
foreach (var pair in sensorObjects)
{
ParameterBuilder builder = new ParameterBuilder().AddFloat(pair.Value.Value.Value);
// // Populate the sensor object
JavaMethod setValueMethod = jvm.GetMethod(SENSOR_REQUEST_CLASS_PATH,
SENSOR_REQUEST_SET_VALUE_FUNCTION,
builder.GetParameterString());
jvm.CallVoidMethod(pair.Key, setValueMethod, builder.Build());
}
}
/// <summary>
/// Gets the parameter names of a method.
/// </summary>
/// <param name="jm">The java method.</param>
/// <param name="jc">The java class.</param>
/// <returns>The parameter names of the java method.</returns>
public static string[] GetParameterNames(this JavaMethod jm, JavaClass jc)
{
Guard.NotNull(ref jc, nameof(jc));
Guard.NotNull(ref jm, nameof(jm));
JavaAttributeMethodParameters attribute = jm.GetAttribute <JavaAttributeMethodParameters>();
if (attribute == null)
{
int count = jm.GetParameterTypes(jc).Length;
return(Enumerable.Range(0, count).Select(x => $"obj{x}").ToArray());
}
return(attribute.Parameters.Select(x => jc.GetConstant <JavaConstantUtf8>(x.NameIndex).Value).ToArray());
}
public static void ConstructorTest()
{
JavaMethodAccessFlags flags = JavaMethodAccessFlags.Native | JavaMethodAccessFlags.Private;
ushort us1 = 1;
ushort us2 = 2;
ushort us3 = 3;
IJavaAttribute[] attributes = new IJavaAttribute[2];
JavaMethod jm = new JavaMethod(flags, us1, us2, us3, attributes);
AssertThat(jm.AccessFlags).IsEqualTo(flags);
AssertThat(jm.NameIndex).IsEqualTo(us1);
AssertThat(jm.DescriptorIndex).IsEqualTo(us2);
AssertThat(jm.AttributesCount).IsEqualTo(us3);
AssertThat(jm.Attributes).ContainsExactly(attributes);
}
internal static JavaCode CreateHelperMethod(JavaClass theClass, JavaMethodRef methodType,
int maxLocals, int maxStack)
{
var newMethod = new JavaMethod(theClass, methodType);
newMethod.Flags = JavaAccessFlags.ACC_PUBLIC | JavaAccessFlags.ACC_BRIDGE;
var code = newMethod.Code = new JavaCode();
code.Method = newMethod;
code.Instructions = new List <JavaCode.Instruction>();
code.MaxLocals = maxLocals;
code.MaxStack = maxStack;
theClass.Methods.Add(newMethod);
return(code);
}
/// <summary>
/// Gets the type attributes.
/// </summary>
/// <param name="jm">The java method.</param>
/// <returns>The type attributes of the method.</returns>
public static MethodAttributes GetAttributes(this JavaMethod jm)
{
Guard.NotNull(ref jm, nameof(jm));
JavaMethodAccessFlags accessFlags = jm.AccessFlags;
MethodAttributes result = MethodAttributes.HideBySig;
if (accessFlags.HasFlag(JavaMethodAccessFlags.Abstract))
{
result |= MethodAttributes.Abstract;
}
if (accessFlags.HasFlag(JavaMethodAccessFlags.Final))
{
result |= MethodAttributes.Final;
}
else
{
result |= MethodAttributes.Virtual;
}
if (accessFlags.HasFlag(JavaMethodAccessFlags.Public))
{
result |= MethodAttributes.Public;
}
if (accessFlags.HasFlag(JavaMethodAccessFlags.Private))
{
result |= MethodAttributes.Private;
}
if (accessFlags.HasFlag(JavaMethodAccessFlags.Protected))
{
result |= MethodAttributes.Family;
}
if (accessFlags.HasFlag(JavaMethodAccessFlags.Static))
{
result |= MethodAttributes.Static;
}
return(result);
}
private void AppendMethod(StringBuilder sb, JavaClass jc, JavaMethod method)
{
if (method.AccessFlags.HasFlag(JavaMethodAccessFlags.Public))
{
sb.Append("public ");
}
else if (method.AccessFlags.HasFlag(JavaMethodAccessFlags.Private))
{
sb.Append("private ");
}
else if (method.AccessFlags.HasFlag(JavaMethodAccessFlags.Protected))
{
sb.Append("protected ");
}
if (method.AccessFlags.HasFlag(JavaMethodAccessFlags.Static))
{
sb.Append("static ");
}
else if (method.AccessFlags.HasFlag(JavaMethodAccessFlags.Abstract))
{
sb.Append("abstract ");
}
string descriptor = ((JavaConstantUtf8)jc.ConstantPool[method.DescriptorIndex]).Value;
sb.Append(GetReturnType(descriptor)).Append(" ");
sb.Append(((JavaConstantUtf8)jc.ConstantPool[method.NameIndex]).Value).Append('(');
sb.Append(string.Join(", ", GetParameterTypes(descriptor)));
sb.Append("){");
sb.Append('}');
}
public static void CreateSuppressibleFinalize(JavaMethod innerMethod, CilType declType,
JavaClass theClass)
{
//
// if the class defines a finalizer method Finalize() then:
//
// - create a flag field that tracks whether finalization is suppressed
//
// - implement interface system.GC.FinalizeSuppressible, and its Set()
// method, which sets the flag field
//
// - create a wrapper method that checks the flag field and possibly
// invokes the original finalizer
//
// see also: system.GC in baselib
//
var flagField = new JavaField();
flagField.Name = "-finalize-suppressed";
flagField.Type = CilType.From(JavaType.BooleanType);
flagField.Class = theClass;
flagField.Flags = JavaAccessFlags.ACC_PRIVATE | JavaAccessFlags.ACC_VOLATILE;
if (theClass.Fields == null)
{
theClass.Fields = new List <JavaField>();
}
theClass.Fields.Add(flagField);
//
// implement the interface method
//
var ifcMethod = new JavaMethod("system-GC$SuppressibleFinalize-Set",
JavaType.VoidType);
ifcMethod.Class = theClass;
ifcMethod.Flags = JavaAccessFlags.ACC_PUBLIC;
var code = ifcMethod.Code = new JavaCode();
code.Method = ifcMethod;
code.Instructions = new List <JavaCode.Instruction>();
code.MaxLocals = code.MaxStack = 2;
code.NewInstruction(0x19 /* aload */, null, (int)0);
code.NewInstruction(0x12 /* ldc */, null, (int)1);
code.NewInstruction(0xB5 /* putfield */, declType, flagField);
code.NewInstruction(JavaType.VoidType.ReturnOpcode, null, null);
theClass.Methods.Add(ifcMethod);
theClass.AddInterface("system.GC$SuppressibleFinalize");
//
// create the wrapper method
//
var outerMethod = new JavaMethod(theClass, innerMethod);
outerMethod.Flags = JavaAccessFlags.ACC_PROTECTED;
innerMethod.Flags = JavaAccessFlags.ACC_PRIVATE;
innerMethod.Name += "---inner";
// prepare to generate instructions
code = outerMethod.Code = new JavaCode();
code.Method = outerMethod;
code.Instructions = new List <JavaCode.Instruction>();
code.StackMap = new JavaStackMap();
code.StackMap.SaveFrame((ushort)0, false, CilMain.Where);
code.MaxLocals = code.MaxStack = 1;
//
// check the flag field to determine if suppressed
//
code.NewInstruction(0x19 /* aload */, null, (int)0);
code.NewInstruction(0xB4 /* getfield */, declType, flagField);
code.NewInstruction(0x9A /* ifne != zero */, null, (ushort)0xFFFE);
code.NewInstruction(0x19 /* aload */, null, (int)0);
code.NewInstruction(0xB7 /* invokespecial */, declType, innerMethod);
code.NewInstruction(JavaType.VoidType.ReturnOpcode, null, null,
/* label */ 0xFFFE);
code.StackMap.SaveFrame((ushort)0xFFFE, true, CilMain.Where);
theClass.Methods.Add(outerMethod);
}
public static JavaMethod CreateSyncWrapper(JavaMethod innerMethod, CilType declType)
{
//
// if method is decorated with [MethodImplOptions.Synchronized],
// create a wrapper method that locks the object (for instance methods)
// or the type (for static methods), and then calls the original method,
// which we make private and rename to have a unique suffix
//
if (innerMethod.Name == "<init>")
{
throw CilMain.Where.Exception("[Synchronized] is not supported on constructors");
}
var outerMethod = new JavaMethod(innerMethod.Class, innerMethod);
outerMethod.Flags = innerMethod.Flags;
innerMethod.Flags &= ~(JavaAccessFlags.ACC_PUBLIC | JavaAccessFlags.ACC_PROTECTED);
innerMethod.Flags |= JavaAccessFlags.ACC_PRIVATE;
innerMethod.Name += "---inner";
// count the size of locals in the parameters, plus one. we have to
// add one for an instance method, to account for the 'this' argument.
// and if a static method, we have to add one for the lock object.
var numLocals = 1;
for (int i = outerMethod.Parameters.Count; i-- > 0;)
{
numLocals += outerMethod.Parameters[i].Type.Category;
}
// prepare to generate instructions
var code = outerMethod.Code = new JavaCode();
code.Method = outerMethod;
code.Instructions = new List <JavaCode.Instruction>();
code.MaxLocals = numLocals + 1;
var exception = new JavaAttribute.Code.Exception();
exception.start = /* label */ 1;
exception.endPlus1 = /* label */ 2;
exception.handler = /* label */ 3;
exception.catchType = CodeExceptions.ThrowableType.ClassName;
code.Exceptions = new List <JavaAttribute.Code.Exception>();
code.Exceptions.Add(exception);
code.StackMap = new JavaStackMap();
code.StackMap.SaveFrame((ushort)0, false, CilMain.Where);
// get a reference to 'this' (for instance methods)
// or to the type object (for static methods),
// then lock on the reference pushed on the stack
int lockedObjectIndex;
if ((outerMethod.Flags & JavaAccessFlags.ACC_STATIC) == 0)
{
code.NewInstruction(0x19 /* aload */, null, (int)0);
code.StackMap.PushStack(JavaType.ObjectType);
code.StackMap.SetLocal(0, JavaType.ObjectType);
lockedObjectIndex = 0;
}
else
{
GenericUtil.LoadMaybeGeneric(declType, code);
code.NewInstruction(0x59 /* dup */, null, null);
code.StackMap.PushStack(JavaType.ObjectType);
code.StackMap.PopStack(CilMain.Where);
code.NewInstruction(0x3A /* astore */, null, (int)numLocals);
code.StackMap.SetLocal((int)numLocals, JavaType.ObjectType);
lockedObjectIndex = (int)numLocals;
}
code.NewInstruction(0xB8 /* invokestatic */,
new JavaType(0, 0, "system.threading.Monitor"),
new JavaMethodRef(
"Enter", JavaType.VoidType, JavaType.ObjectType));
code.StackMap.PopStack(CilMain.Where);
code.NewInstruction(0x00 /* nop */, null, null, /* label */ 1);
code.StackMap.SaveFrame((ushort)1, false, CilMain.Where);
// push all arguments for the call to the inner method
byte callOpcode;
int localIndex = 0;
if ((outerMethod.Flags & JavaAccessFlags.ACC_STATIC) == 0)
{
code.StackMap.PushStack(JavaType.ObjectType);
code.NewInstruction(0x19 /* aload */, null, (int)0);
localIndex++;
callOpcode = 0xB7; // invokespecial
}
else
{
callOpcode = 0xB8; // invokestatic
}
for (int i = 0; i < outerMethod.Parameters.Count; i++)
{
var paramType = outerMethod.Parameters[i].Type;
code.StackMap.PushStack(paramType);
code.NewInstruction(paramType.LoadOpcode, null, (int)localIndex);
localIndex += paramType.Category;
}
code.NewInstruction(callOpcode, declType, innerMethod);
// if we get here, then no exception was thrown in the
// inner method, we need to unlock and return the result
code.StackMap.ClearStack();
if (!innerMethod.ReturnType.Equals(JavaType.VoidType))
{
code.StackMap.PushStack(innerMethod.ReturnType);
}
code.NewInstruction(0x00 /* nop */, null, null, /* label */ 2);
code.StackMap.SaveFrame((ushort)2, false, CilMain.Where);
code.NewInstruction(0x19 /* aload */, null, lockedObjectIndex);
code.StackMap.PushStack(JavaType.ObjectType);
code.NewInstruction(0xB8 /* invokestatic */,
new JavaType(0, 0, "system.threading.Monitor"),
new JavaMethodRef(
"Exit", JavaType.VoidType, JavaType.ObjectType));
code.NewInstruction(innerMethod.ReturnType.ReturnOpcode, null, null);
// if we get here, then an exception was thrown, unlock
// and rethrow the exception
code.StackMap.ClearStack();
code.StackMap.PushStack(CodeExceptions.ThrowableType);
code.NewInstruction(0x00 /* nop */, null, null, /* label */ 3);
code.StackMap.SaveFrame((ushort)3, true, CilMain.Where);
code.NewInstruction(0x19 /* aload */, null, lockedObjectIndex);
code.StackMap.PushStack(JavaType.ObjectType);
code.NewInstruction(0xB8 /* invokestatic */,
new JavaType(0, 0, "system.threading.Monitor"),
new JavaMethodRef(
"Exit", JavaType.VoidType, JavaType.ObjectType));
code.StackMap.PopStack(CilMain.Where);
code.NewInstruction(0xBF /* athrow */, null, null);
code.StackMap.ClearStack();
code.MaxStack = code.StackMap.GetMaxStackSize(CilMain.Where);
return(outerMethod);
}
public static JavaMethod BuildPlainProxy(CilInterfaceMethod ifcMethod, CilType intoType,
List <CilInterfaceMethod> classMethods)
{
CilMethod targetMethod = null;
foreach (var clsMethod in classMethods)
{
if (clsMethod.Method.IsExplicitImpl)
{
// no need for a proxy if we already have an override method,
// which has the same name as the proxy: interface$method
if (ifcMethod.Method.Name == clsMethod.Method.Name)
{
return(null);
}
}
else if (ifcMethod.PlainCompare(clsMethod))
{
// more than one method may match, if a derived type overrides
// or hides a method that also exists in a base type. but the
// derived (primary) type methods always come first.
if (targetMethod == null)
{
targetMethod = clsMethod.Method;
}
}
}
if (targetMethod == null)
{
throw CilMain.Where.Exception(
$"missing method '{ifcMethod.Method}' "
+ $"(for interface '{ifcMethod.Method.DeclType}')");
}
if (targetMethod.IsRetainName)
{
// method retains is name, so it doesn't require a proxy bridge
return(null);
}
//
// create proxy method
//
var newMethod = new JavaMethod(null, targetMethod);
newMethod.Name = ifcMethod.Method.Name;
newMethod.Flags = JavaAccessFlags.ACC_PUBLIC | JavaAccessFlags.ACC_BRIDGE;
var code = newMethod.Code = new JavaCode();
code.Method = newMethod;
code.Instructions = new List <JavaCode.Instruction>();
//
// push 'this' and all other parameters
//
code.NewInstruction(0x19 /* aload */, null, (int)0);
int numArgs = newMethod.Parameters.Count;
int index = 1;
for (int i = 0; i < numArgs; i++)
{
var arg = targetMethod.Parameters[i].Type;
code.NewInstruction(arg.LoadOpcode, null, (int)index);
index += arg.Category;
}
//
// invoke proxy target method and return
//
code.NewInstruction(0xB6 /* invokevirtual */, intoType, targetMethod);
code.NewInstruction(targetMethod.ReturnType.ReturnOpcode, null, null);
code.MaxLocals = code.MaxStack = index;
return(newMethod);
}
public static void BuildGenericProxy2(CilInterfaceMethod ifcMethod, CilMethod targetMethod,
bool parentField, CilType intoType, JavaClass ifcClass)
{
//
// create proxy method
//
var targetMethod2 = targetMethod.WithGenericParameters;
var ifcMethod2 = ifcMethod.Method.WithGenericParameters;
var newMethod = new JavaMethod(ifcClass, targetMethod2);
newMethod.Name = ifcMethod2.Name;
newMethod.Flags = JavaAccessFlags.ACC_PUBLIC | JavaAccessFlags.ACC_BRIDGE;
var code = newMethod.Code = new JavaCode();
code.Method = newMethod;
code.Instructions = new List <JavaCode.Instruction>();
//
// push a reference to the parent object
//
code.NewInstruction(0x19 /* aload */, null, (int)0);
if (parentField)
{
code.NewInstruction(0xB4 /* getfield */, new JavaType(0, 0, ifcClass.Name),
new JavaFieldRef(ParentFieldName, intoType));
}
//
// push all other parameters
//
int numArgs = newMethod.Parameters.Count;
int index = 1;
int maxStack = 1;
for (int i = 0; i < numArgs; i++)
{
var ifcArg = ifcMethod2.Parameters[i].Type;
code.NewInstruction(ifcArg.LoadOpcode, null, (int)index);
index += ifcArg.Category;
var clsArg = (CilType)targetMethod2.Parameters[i].Type;
if (JavaType.ObjectType.Equals(ifcArg))
{
if (!clsArg.IsReference)
{
var boxedArg = new BoxedType(clsArg, false);
code.NewInstruction(0xC0 /* checkcast */, boxedArg, null);
boxedArg.GetValue(code);
}
else if (!JavaType.ObjectType.Equals(clsArg))
{
code.NewInstruction(0xC0 /* checkcast */, clsArg, null);
}
// a parameter in the target method may be a concrete type,
// but if it is a generic java.lang.Object in the interface,
// then it must be a generic java.lang.Object in the proxy
newMethod.Parameters[i] = new JavaFieldRef("", ifcArg);
}
maxStack += clsArg.Category;
}
//
// invoke proxy target method
//
code.NewInstruction(0xB6 /* invokevirtual */, intoType, targetMethod2);
//
// return value from method
//
var clsRet = (CilType)targetMethod2.ReturnType;
var ifcRet = ifcMethod2.ReturnType;
if (JavaType.ObjectType.Equals(ifcRet))
{
if (!clsRet.IsReference)
{
var boxedArg = new BoxedType(clsRet, false);
boxedArg.BoxValue(code);
}
// the return value in the target method may be a concrete type,
// but if it is a generic java.lang.Object in the interface,
// then it must also be a generic java.lang.Object in the proxy
newMethod.ReturnType = ifcRet;
code.NewInstruction(ifcRet.ReturnOpcode, null, null);
}
else
{
code.NewInstruction(clsRet.ReturnOpcode, null, null);
}
code.MaxLocals = index;
code.MaxStack = maxStack;
ifcClass.Methods.Add(newMethod);
}
public static void ImportMethods(JavaClass jclass, TypeDefinition cilType,
int numCastableInterfaces)
{
if (cilType.HasMethods)
{
int n = cilType.Methods.Count;
if (n > 0)
{
jclass.Methods = new List <JavaMethod>(n);
for (int i = 0; i < n; i++)
{
var defMethod = cilType.Methods[i];
/*
* if (defMethod.HasCustomAttribute("Discard"))
* continue; // if decorated with [java.attr.Discard], don't export to java
*/
var genericMark = CilMain.GenericStack.Mark();
var myMethod = CilMain.GenericStack.EnterMethod(defMethod);
var newMethod = new JavaMethod(jclass, myMethod.WithGenericParameters);
newMethod.Flags = AttributesToAccessFlags(
defMethod.Attributes, defMethod.HasOverrides,
(cilType.HasNestedTypes || cilType.HasGenericParameters));
if (myMethod.IsStatic & myMethod.IsConstructor)
{
newMethod.Flags &= ~(JavaAccessFlags.ACC_PUBLIC
| JavaAccessFlags.ACC_PRIVATE
| JavaAccessFlags.ACC_PROTECTED);
}
if (defMethod.HasBody)
{
CilMain.Where.Push($"method '{defMethod.Name}'");
CodeBuilder.BuildJavaCode(newMethod, myMethod, defMethod,
numCastableInterfaces);
if ((defMethod.ImplAttributes & MethodImplAttributes.Synchronized) != 0)
{
// if method is decorated with [MethodImplOptions.Synchronized],
// create a wrapper method that locks appropriately
jclass.Methods.Add(
CodeBuilder.CreateSyncWrapper(newMethod, myMethod.DeclType));
}
else if (defMethod.Name == "Finalize" &&
(!defMethod.HasParameters) && defMethod.IsVirtual)
{
// if method is a finalizer, create a wrapper method that
// checks if finalization was suppressed for the object
CodeBuilder.CreateSuppressibleFinalize(
newMethod, myMethod.DeclType, jclass);
}
if (defMethod.IsVirtual)
{
InterfaceBuilder.BuildOverloadProxy(
cilType, defMethod, myMethod, jclass);
}
else if (!myMethod.IsConstructor)
{
newMethod.Flags |= JavaAccessFlags.ACC_FINAL;
}
CilMain.Where.Pop();
}
else
{
if ((!defMethod.IsAbstract) &&
(defMethod.IsInternalCall || defMethod.IsPInvokeImpl))
{
// skip native methods
continue;
}
// clear ACC_STATIC and access, set ACC_ABSTRACT and ACC_PUBLIC
newMethod.Flags = (newMethod.Flags | JavaAccessFlags.ACC_ABSTRACT
| JavaAccessFlags.ACC_PUBLIC)
& ~(JavaAccessFlags.ACC_STATIC
| JavaAccessFlags.ACC_PRIVATE
| JavaAccessFlags.ACC_PROTECTED);
}
jclass.Methods.Add(newMethod);
CilMain.GenericStack.Release(genericMark);
if (myMethod.IsConstructor)
{
var dummyClass = CreateDummyClassForConstructor(myMethod, jclass);
if (dummyClass != null)
{
CilMain.JavaClasses.Add(dummyClass);
}
}
else if (myMethod.WithGenericParameters != myMethod &&
(!myMethod.IsRetainName))
{
jclass.Methods.Add(
Delegate.CreateCapturingBridgeMethod(
newMethod, myMethod.Parameters, cilType.IsInterface));
}
}
}
}
else
{
jclass.Methods = new List <JavaMethod>(0);
}
JavaClass CreateDummyClassForConstructor(CilMethod theMethod, JavaClass theClass)
{
if (!theMethod.HasDummyClassArg)
{
return(null);
}
return(CilMain.CreateInnerClass(
theClass,
theMethod.Parameters[
theMethod.Parameters.Count - 1].Type.ClassName));
}
}
/*
*
* The DroidDoc format from API Level 16 to 23, the format is:
*
* - All pages have ToC links and body (unlike standard JavaDoc which is based on HTML frames).
* - The actual doc section is a div element whose id is "doc-col".
* - The "doc-col" div element has a section div element whose id is "jd-header" and another one with id "jd-content".
* - "jd-header" div element contains the type signature (modifiers, name, and inheritance).
* - Here we care only about type name and kind (whether it is a class or interface).
* - Generic arguments are insignificant.
* - In the following terms I explain the "correct" (or "expected") document structure, but in fact
* Google completely broke it and it is impossible to retrieve the document tree like this.
* We workaround this issue by changing the strategy "iterate children of 'jd-content'"
* with "iterate descendants of 'jd-content'"... It occurs only in API Level 15 or later.
* - "jd-content" div element contains a collection of sections. Each section consists of:
* - an "h2" element whose value text indicates the section name ("Public Constructors", "Protected Methods" etc.)
* - There was an issue in javax/xml/validation/SchemaFactory.html in API Level 15 that the method details contain
* "h2" and confuses the parser. To workaround this, we accept only limited kind of values.
* - the content, which follows the h2 element.
* - The section content is a collection of members. Each member consists of:
* - an anchor ("A") element with "name" attribute, and
* - a div element which contains an h4 child element whose class contains "jd-details-title".
* - The h4 element contains the member signature. We parse it and retrieve the method name and list of parameters.
* - Parameters are tokenized by ", ".
* - Note that the splitter contains a white space which disambiguates any use of generic arguments (we don't want to split "Foo<K,V> bar" as "Foo<K" and "V> bar")
*
* API Level 10 to 15 has slightly different format:
*
* - There is no "doc-col" element. But "jd-header" and "jd-content" are still alive.
*
*/
public void Import(ImporterOptions options)
{
options.DiagnosticWriter.WriteLine(options.DocumentDirectory);
string referenceDocsTopDir = Path.Combine(options.DocumentDirectory, "reference");
var htmlFiles = Directory.GetDirectories(referenceDocsTopDir).SelectMany(d => Directory.GetFiles(d, "*.html", SearchOption.AllDirectories));
var api = new JavaApi();
foreach (var htmlFile in htmlFiles)
{
// skip irrelevant files.
if (excludes.Any(x => htmlFile.EndsWith(x, StringComparison.OrdinalIgnoreCase)))
{
continue;
}
var packageName = Path.GetDirectoryName(htmlFile).Substring(referenceDocsTopDir.Length + 1).Replace('/', '.');
if (options.FrameworkOnly && non_frameworks.Any(n => packageName.StartsWith(n, StringComparison.Ordinal)))
{
continue;
}
options.DiagnosticWriter.WriteLine("-- " + htmlFile);
var doc = new HtmlLoader().GetJavaDocFile(htmlFile);
var header = doc.Descendants().FirstOrDefault(e => e.Attribute("id")?.Value == "jd-header");
var content = doc.Descendants().FirstOrDefault(e => e.Attribute("id")?.Value == "jd-content");
if (header == null || content == null)
{
continue;
}
var apiSignatureTokens = header.Value.Replace('\r', ' ').Replace('\n', ' ').Replace('\t', ' ').Trim();
if (apiSignatureTokens.Contains("extends "))
{
apiSignatureTokens = apiSignatureTokens.Substring(0, apiSignatureTokens.IndexOf("extends ", StringComparison.Ordinal)).Trim();
}
if (apiSignatureTokens.Contains("implements "))
{
apiSignatureTokens = apiSignatureTokens.Substring(0, apiSignatureTokens.IndexOf("implements ", StringComparison.Ordinal)).Trim();
}
bool isClass = apiSignatureTokens.Contains("class");
options.DiagnosticWriter.WriteLine(apiSignatureTokens);
var javaPackage = api.Packages.FirstOrDefault(p => p.Name == packageName);
if (javaPackage == null)
{
javaPackage = new JavaPackage(api)
{
Name = packageName
};
api.Packages.Add(javaPackage);
}
var javaType = isClass ? (JavaType) new JavaClass(javaPackage) : new JavaInterface(javaPackage);
javaType.Name = apiSignatureTokens.Substring(apiSignatureTokens.LastIndexOf(' ') + 1);
javaPackage.Types.Add(javaType);
string sectionType = null;
var sep = new string [] { ", " };
var ssep = new char [] { ' ' };
foreach (var child in content.Descendants())
{
if (child.Name == "h2")
{
var value = child.Value;
switch (value)
{
case "Public Constructors":
case "Protected Constructors":
case "Public Methods":
case "Protected Methods":
sectionType = value;
break;
}
continue;
}
if (sectionType == null)
{
continue;
}
if (child.Name != "a" || child.Attribute("name") == null)
{
continue;
}
var h4 = child.XPathSelectElement("following-sibling::div/h4[contains(@class, 'jd-details-title')]");
if (h4 == null)
{
continue;
}
string sigTypeOnly = child.Attribute("name").Value;
string sigTypeAndName = h4.Value.Replace('\n', ' ').Replace('\r', ' ').Trim();
if (!sigTypeAndName.Contains('('))
{
continue;
}
JavaMethodBase javaMethod = null;
string name = sigTypeAndName.Substring(0, sigTypeAndName.IndexOf('(')).Split(ssep, StringSplitOptions.RemoveEmptyEntries).Last();
switch (sectionType)
{
case "Public Constructors":
case "Protected Constructors":
javaMethod = new JavaConstructor(javaType)
{
Name = name
};
break;
case "Public Methods":
case "Protected Methods":
string mname = sigTypeAndName.Substring(0, sigTypeAndName.IndexOf('('));
javaMethod = new JavaMethod(javaType)
{
Name = name
};
break;
}
javaType.Members.Add(javaMethod);
var paramTypes = SplitTypes(sigTypeOnly.Substring(sigTypeOnly.IndexOf('(') + 1).TrimEnd(')'), 0).ToArray();
var parameters = sigTypeAndName.Substring(sigTypeAndName.IndexOf('(') + 1).TrimEnd(')')
.Split(sep, StringSplitOptions.RemoveEmptyEntries)
.Select(s => s.Trim())
.ToArray();
foreach (var p in paramTypes.Zip(parameters, (to, tn) => new { Type = to, TypeAndName = tn })
.Select(pp => new { Type = pp.Type, Name = pp.TypeAndName.Split(' ') [1] }))
{
javaMethod.Parameters.Add(new JavaParameter(javaMethod)
{
Name = p.Name, Type = p.Type
});
}
}
javaType.Members = javaType.Members.OfType <JavaMethodBase> ()
.OrderBy(m => m.Name + "(" + string.Join(",", m.Parameters.Select(p => p.Type)) + ")")
.ToArray();
}
foreach (var pkg in api.Packages)
{
pkg.Types = pkg.Types.OrderBy(t => t.Name).ToArray();
}
api.Packages = api.Packages.OrderBy(p => p.Name).ToArray();
if (options.OutputTextFile != null)
{
api.WriteParameterNamesText(options.OutputTextFile);
}
if (options.OutputXmlFile != null)
{
api.WriteParameterNamesXml(options.OutputXmlFile);
}
}
