Here are the examples of the csharp api System.Reflection.Emit.ILGenerator.Emit(System.Reflection.Emit.OpCode, System.Reflection.MethodInfo) taken from open source projects. By voting up you can indicate which examples are most useful and appropriate.
542 Examples
19
Source : EntityMapperProvider.cs
with Apache License 2.0
from 1448376744
with Apache License 2.0
from 1448376744
private Func<IDataRecord, T> CreateTypeSerializerHandler<T>(MemberMapper mapper, IDataRecord record)
{
var type = typeof(T);
var methodName = $"Serializer{Guid.NewGuid():N}";
var dynamicMethod = new DynamicMethod(methodName, type, new Type[] { typeof(IDataRecord) }, type, true);
var generator = dynamicMethod.GetILGenerator();
LocalBuilder local = generator.DeclareLocal(type);
var dataInfos = new DataReaderCellInfo[record.FieldCount];
for (int i = 0; i < record.FieldCount; i++)
{
var dataname = record.GetName(i);
var datatype = record.GetFieldType(i);
var typename = record.GetDataTypeName(i);
dataInfos[i] = new DataReaderCellInfo(i, typename, datatype, dataname);
}
if (dataInfos.Length == 1 && (type.IsValueType || type == typeof(string) || type == typeof(object)))
{
var dataInfo = dataInfos.First();
var convertMethod = mapper.FindConvertMethod(type, dataInfo.DataType);
generator.Emit(OpCodes.Ldarg_0);
generator.Emit(OpCodes.Ldc_I4, 0);
if (convertMethod.IsVirtual)
generator.Emit(OpCodes.Callvirt, convertMethod);
else
generator.Emit(OpCodes.Call, convertMethod);
if (type == typeof(object) && convertMethod.ReturnType.IsValueType)
{
generator.Emit(OpCodes.Box, convertMethod.ReturnType);
}
generator.Emit(OpCodes.Stloc, local);
generator.Emit(OpCodes.Ldloc, local);
generator.Emit(OpCodes.Ret);
return dynamicMethod.CreateDelegate(typeof(Func<IDataRecord, T>)) as Func<IDataRecord, T>;
}
var constructor = mapper.FindConstructor(type);
if (constructor.GetParameters().Length > 0)
{
var parameters = constructor.GetParameters();
var locals = new LocalBuilder[parameters.Length];
for (int i = 0; i < locals.Length; i++)
{
locals[i] = generator.DeclareLocal(parameters[i].ParameterType);
}
for (int i = 0; i < locals.Length; i++)
{
var item = mapper.FindConstructorParameter(dataInfos, parameters[i]);
if (item == null)
{
continue;
}
var convertMethod = mapper.FindConvertMethod(parameters[i].ParameterType, item.DataType);
generator.Emit(OpCodes.Ldarg_0);
generator.Emit(OpCodes.Ldc_I4, item.Ordinal);
if (convertMethod.IsVirtual)
generator.Emit(OpCodes.Callvirt, convertMethod);
else
generator.Emit(OpCodes.Call, convertMethod);
generator.Emit(OpCodes.Stloc, locals[i]);
}
for (int i = 0; i < locals.Length; i++)
{
generator.Emit(OpCodes.Ldloc, locals[i]);
}
generator.Emit(OpCodes.Newobj, constructor);
generator.Emit(OpCodes.Stloc, local);
generator.Emit(OpCodes.Ldloc, local);
generator.Emit(OpCodes.Ret);
return dynamicMethod.CreateDelegate(typeof(Func<IDataRecord, T>)) as Func<IDataRecord, T>;
}
else
{
var properties = type.GetProperties();
generator.Emit(OpCodes.Newobj, constructor);
generator.Emit(OpCodes.Stloc, local);
foreach (var item in dataInfos)
{
var property = mapper.FindMember(properties, item) as PropertyInfo;
if (property == null)
{
continue;
}
var convertMethod = mapper.FindConvertMethod(property.PropertyType, item.DataType);
if (convertMethod == null)
{
continue;
}
int i = record.GetOrdinal(item.DataName);
generator.Emit(OpCodes.Ldloc, local);
generator.Emit(OpCodes.Ldarg_0);
generator.Emit(OpCodes.Ldc_I4, i);
if (convertMethod.IsVirtual)
generator.Emit(OpCodes.Callvirt, convertMethod);
else
generator.Emit(OpCodes.Call, convertMethod);
generator.Emit(OpCodes.Callvirt, property.GetSetMethod());
}
generator.Emit(OpCodes.Ldloc, local);
generator.Emit(OpCodes.Ret);
return dynamicMethod.CreateDelegate(typeof(Func<IDataRecord, T>)) as Func<IDataRecord, T>;
}
}
19
Source : EntityMapperProvider.cs
with Apache License 2.0
from 1448376744
with Apache License 2.0
from 1448376744
private Func<object, Dictionary<string, object>> CreateTypeDeserializerHandler(Type type)
{
var properties = type.GetProperties(BindingFlags.Public | BindingFlags.Instance);
var methodName = $"{type.Name}Deserializer{Guid.NewGuid():N}";
var dynamicMethod = new DynamicMethod(methodName, typeof(Dictionary<string, object>), new Type[] { typeof(object) }, type, true);
var generator = dynamicMethod.GetILGenerator();
LocalBuilder enreplacedyLocal1 = generator.DeclareLocal(typeof(Dictionary<string, object>));
LocalBuilder enreplacedyLocal2 = generator.DeclareLocal(type);
generator.Emit(OpCodes.Newobj, typeof(Dictionary<string, object>).GetConstructor(Type.EmptyTypes));
generator.Emit(OpCodes.Stloc, enreplacedyLocal1);
generator.Emit(OpCodes.Ldarg_0);
generator.Emit(OpCodes.Castclreplaced, type);
generator.Emit(OpCodes.Stloc, enreplacedyLocal2);
foreach (var item in properties)
{
generator.Emit(OpCodes.Ldloc, enreplacedyLocal1);
generator.Emit(OpCodes.Ldstr, item.Name);
generator.Emit(OpCodes.Ldloc, enreplacedyLocal2);
generator.Emit(OpCodes.Callvirt, item.GetGetMethod());
if (item.PropertyType.IsValueType)
{
generator.Emit(OpCodes.Box, item.PropertyType);
}
var addMethod = typeof(Dictionary<string, object>).GetMethod(nameof(Dictionary<string, object>.Add), new Type[] { typeof(string), typeof(object) });
generator.Emit(OpCodes.Callvirt, addMethod);
}
generator.Emit(OpCodes.Ldloc, enreplacedyLocal1);
generator.Emit(OpCodes.Ret);
return dynamicMethod.CreateDelegate(typeof(Func<object, Dictionary<string, object>>)) as Func<object, Dictionary<string, object>>;
}
19
Source : EmitHelper.cs
with MIT License
from 1996v
with MIT License
from 1996v
public static void EmitCall(this ILGenerator il, MethodInfo methodInfo)
{
if (methodInfo.IsFinal || !methodInfo.IsVirtual)
{
il.Emit(OpCodes.Call, methodInfo);
}
else
{
il.Emit(OpCodes.Callvirt, methodInfo);
}
}
19
Source : TypeBuildHelper.cs
with MIT License
from 1996v
with MIT License
from 1996v
public static void CallOneMethodInSerialize(MethodBuilder serialize, MethodInfo method)
{
ILGenerator il = serialize.GetILGenerator();
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Ldarg_2);
il.Emit(OpCodes.Ldarg_3);
il.Emit(OpCodes.Call, method);
il.Emit(OpCodes.Ret);
}
19
Source : TypeBuildHelper.cs
with MIT License
from 1996v
with MIT License
from 1996v
public static void CallSerializeDelegate(MethodBuilder serializeMethod, Type genericType, FieldInfo fieldInfo)
{
ILGenerator il = serializeMethod.GetILGenerator();
il.Emit(OpCodes.Ldsfld, fieldInfo);
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Ldarg_2);
il.Emit(OpCodes.Ldarg_3);
il.Emit(OpCodes.Call, typeof(Serialize<>).MakeGenericType(genericType).GetMethod(nameof(Serialize<int>.Invoke)));
il.Emit(OpCodes.Ret);
}
19
Source : TypeBuildHelper.cs
with MIT License
from 1996v
with MIT License
from 1996v
public static void CallOneMethodInDeserialize(MethodBuilder deserialize, MethodInfo method)
{
ILGenerator il = deserialize.GetILGenerator();
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Ldarg_2);
il.Emit(OpCodes.Call, method);
il.Emit(OpCodes.Ret);
}
19
Source : TypeBuildHelper.cs
with MIT License
from 1996v
with MIT License
from 1996v
public static void CallOneStaticFieldMethodInDeserialize(MethodBuilder deserialize, FieldInfo fieldInfo, MethodInfo method)
{
ILGenerator il = deserialize.GetILGenerator();
il.Emit(OpCodes.Ldsfld, fieldInfo);
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Ldarg_2);
il.Emit(OpCodes.Callvirt, method);
il.Emit(OpCodes.Ret);
}
19
Source : TypeBuildHelper.cs
with MIT License
from 1996v
with MIT License
from 1996v
public static void CallDeserializeDelegate(MethodBuilder deserializeMethod, Type genericType, FieldInfo fieldInfo)
{
ILGenerator il = deserializeMethod.GetILGenerator();
il.Emit(OpCodes.Ldsfld, fieldInfo);
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Ldarg_2);
il.Emit(OpCodes.Call, typeof(Deserialize<>).MakeGenericType(genericType).GetMethod(nameof(Deserialize<int>.Invoke)));
il.Emit(OpCodes.Ret);
}
19
Source : TypeBuildHelper.cs
with MIT License
from 1996v
with MIT License
from 1996v
public static void CallOneMethodInSize(MethodBuilder serialize, MethodInfo method)
{
ILGenerator il = serialize.GetILGenerator();
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Ldarg_2);
il.Emit(OpCodes.Call, method);
il.Emit(OpCodes.Ret);
}
19
Source : TypeBuildHelper.cs
with MIT License
from 1996v
with MIT License
from 1996v
public static void CallSizeDelegate(MethodBuilder serializeMethod, Type genericType, FieldInfo fieldInfo)
{
ILGenerator il = serializeMethod.GetILGenerator();
il.Emit(OpCodes.Ldsfld, fieldInfo);
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Ldarg_2);
il.Emit(OpCodes.Call, typeof(Size<>).MakeGenericType(genericType).GetMethod(nameof(Size<int>.Invoke)));
il.Emit(OpCodes.Ret);
}
19
Source : Helpers.cs
with MIT License
from 71
with MIT License
from 71
private static Func<DynamicMethod, RuntimeMethodHandle> MakeFindMethodHandleOfDynamicMethod()
{
// Generate the "FindMethodHandleOfDynamicMethod" delegate.
DynamicMethod findMethodHandle = new DynamicMethod(
nameof(FindMethodHandleOfDynamicMethod),
typeof(RuntimeMethodHandle),
new[] { typeof(DynamicMethod) },
typeof(DynamicMethod), true);
ILGenerator il = findMethodHandle.GetILGenerator(16);
il.Emit(OpCodes.Ldarg_0);
MethodInfo getMethodDescriptor = typeof(DynamicMethod)
.GetMethod("GetMethodDescriptor", NON_PUBLIC_INSTANCE);
if (getMethodDescriptor != null)
{
il.Emit(OpCodes.Callvirt, getMethodDescriptor);
}
else
{
FieldInfo handleField = typeof(DynamicMethod).GetField("m_method", NON_PUBLIC_INSTANCE)
?? typeof(DynamicMethod).GetField("mhandle", NON_PUBLIC_INSTANCE)
?? typeof(DynamicMethod).GetField("m_methodHandle", NON_PUBLIC_INSTANCE);
il.Emit(OpCodes.Ldfld, handleField);
}
il.Emit(OpCodes.Ret);
return findMethodHandle.CreateDelegate(typeof(Func<DynamicMethod, RuntimeMethodHandle>))
as Func<DynamicMethod, RuntimeMethodHandle>;
}
19
Source : Helpers.cs
with MIT License
from 71
with MIT License
from 71
private static Func<RuntimeMethodHandle, IntPtr> MakeGetFunctionPointer()
{
// Generate the "GetFunctionPointer" delegate.
DynamicMethod getFunctionPointer = new DynamicMethod(
nameof(GetFunctionPointer),
typeof(IntPtr),
new[] { typeof(RuntimeMethodHandle) },
typeof(RuntimeMethodHandle), true);
ILGenerator il = getFunctionPointer.GetILGenerator(16);
il.Emit(OpCodes.Ldarga_S, (short)0);
il.Emit(OpCodes.Call, typeof(RuntimeMethodHandle).GetMethod(nameof(GetFunctionPointer), PUBLIC_INSTANCE));
il.Emit(OpCodes.Ret);
return getFunctionPointer.CreateDelegate(typeof(Func<RuntimeMethodHandle, IntPtr>))
as Func<RuntimeMethodHandle, IntPtr>;
}
19
Source : Redirection.Reactive.cs
with MIT License
from 71
with MIT License
from 71
private static MethodRedirection CreateDynamicRedirection(MethodBase method, out int id)
{
// Make id
do
{
id = ObservingRedirectionsIdGenerator.Next();
}
while (ObservingRedirections.ContainsKey(id));
// Creates an array containing all parameter types
int diff = method.IsStatic ? 0 : 1;
ParameterInfo[] originalParameters = method.GetParameters();
Type[] originalParameterTypes = new Type[originalParameters.Length + diff];
if (diff == 1 /* !method.IsStatic */)
originalParameterTypes[0] = method.DeclaringType;
for (int i = 0; i < originalParameters.Length; i++)
{
originalParameterTypes[i + diff] = originalParameters[i].ParameterType;
}
// Create an identical method
bool isCtor = method is ConstructorInfo;
Type returnType = isCtor ? typeof(void) : ((MethodInfo)method).ReturnType;
DynamicMethod dyn = new DynamicMethod(
name: method.Name,
attributes: MethodAttributes.Public | MethodAttributes.Static,
callingConvention: CallingConventions.Standard,
returnType: returnType,
parameterTypes: originalParameterTypes,
owner: method.DeclaringType,
skipVisibility: true);
// Make the method call the observable
ILGenerator il = dyn.GetILGenerator();
{
// This is in a block to make every more readable,
// the following comments describe what's happening in the generated method.
// Emit "this", or "null"
if (method.IsStatic)
{
il.Emit(OpCodes.Ldnull);
}
else
{
il.Emit(OpCodes.Ldarg_0);
if (method.DeclaringType.GetTypeInfo().IsValueType)
{
il.Emit(OpCodes.Ldobj, method.DeclaringType);
il.Emit(OpCodes.Box, method.DeclaringType);
}
}
// Create an array containing all parameters
il.Emit(OpCodes.Ldc_I4, originalParameters.Length);
il.Emit(OpCodes.Newarr, typeof(object));
for (int i = 0; i < originalParameters.Length; i++)
{
il.Emit(OpCodes.Dup);
il.Emit(OpCodes.Ldc_I4, i);
il.Emit(OpCodes.Ldarg, i + diff);
Type parameterType = originalParameterTypes[i + diff];
if (parameterType.GetTypeInfo().IsValueType)
il.Emit(OpCodes.Box, parameterType);
il.Emit(OpCodes.Stelem_Ref);
}
// Array is still on stack (thanks to dup)
// Emit id
il.Emit(OpCodes.Ldc_I4, id);
// Call "hook" method
il.Emit(OpCodes.Call, typeof(Redirection).GetMethod(nameof(OnInvoked), BindingFlags.Static | BindingFlags.NonPublic));
// Return returned result
// (But first, cast it if needed)
if (returnType == typeof(void))
il.Emit(OpCodes.Pop);
else if (returnType.GetTypeInfo().IsValueType)
il.Emit(OpCodes.Unbox_Any, returnType);
else if (returnType != typeof(object))
il.Emit(OpCodes.Castclreplaced, returnType);
il.Emit(OpCodes.Ret);
}
// Return the redirection
return new MethodRedirection(method, dyn, false);
}
19
Source : Ryder.Lightweight.cs
with MIT License
from 71
with MIT License
from 71
private static Func<DynamicMethod, RuntimeMethodHandle> MakeFindMethodHandleOfDynamicMethod()
{
// Generate the "FindMethodHandleOfDynamicMethod" delegate.
DynamicMethod findMethodHandle = new DynamicMethod(
nameof(FindMethodHandleOfDynamicMethod),
typeof(RuntimeMethodHandle),
new[] { typeof(DynamicMethod) },
typeof(DynamicMethod), true);
ILGenerator il = findMethodHandle.GetILGenerator(16);
il.Emit(OpCodes.Ldarg_0);
MethodInfo getMethodDescriptor = typeof(DynamicMethod)
.GetMethod("GetMethodDescriptor", NON_PUBLIC_INSTANCE);
if (getMethodDescriptor != null)
{
il.Emit(OpCodes.Callvirt, getMethodDescriptor);
}
else
{
FieldInfo handleField = typeof(DynamicMethod).GetField("m_method", NON_PUBLIC_INSTANCE)
?? typeof(DynamicMethod).GetField("mhandle", NON_PUBLIC_INSTANCE)
?? typeof(DynamicMethod).GetField("m_methodHandle", NON_PUBLIC_INSTANCE);
il.Emit(OpCodes.Ldfld, handleField);
}
il.Emit(OpCodes.Ret);
return findMethodHandle.CreateDelegate(typeof(Func<DynamicMethod, RuntimeMethodHandle>))
as Func<DynamicMethod, RuntimeMethodHandle>;
}
19
Source : Ryder.Lightweight.cs
with MIT License
from 71
with MIT License
from 71
private static Func<MethodBase, RuntimeMethodHandle> MakeGetMethodHandle()
{
// Generate the "GetMethodHandle" delegate.
DynamicMethod getMethodHandle = new DynamicMethod(
nameof(GetMethodHandle),
typeof(RuntimeMethodHandle),
new[] { typeof(MethodBase) },
typeof(RuntimeMethodHandle), true);
ILGenerator il = getMethodHandle.GetILGenerator(16);
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Callvirt, typeof(MethodBase).GetProperty("MethodHandle", PUBLIC_INSTANCE).GetMethod);
il.Emit(OpCodes.Ret);
return getMethodHandle.CreateDelegate(typeof(Func<MethodBase, RuntimeMethodHandle>))
as Func<MethodBase, RuntimeMethodHandle>;
}
19
Source : Ryder.Lightweight.cs
with MIT License
from 71
with MIT License
from 71
private static Func<RuntimeMethodHandle, IntPtr> MakeGetFunctionPointer()
{
// Generate the "GetFunctionPointer" delegate.
DynamicMethod getFunctionPointer = new DynamicMethod(
nameof(GetFunctionPointer),
typeof(IntPtr),
new[] { typeof(RuntimeMethodHandle) },
typeof(RuntimeMethodHandle), true);
ILGenerator il = getFunctionPointer.GetILGenerator(16);
il.Emit(OpCodes.Ldarga_S, (short)0);
il.Emit(OpCodes.Call, typeof(RuntimeMethodHandle).GetMethod(nameof(GetFunctionPointer), PUBLIC_INSTANCE));
il.Emit(OpCodes.Ret);
return getFunctionPointer.CreateDelegate(typeof(Func<RuntimeMethodHandle, IntPtr>))
as Func<RuntimeMethodHandle, IntPtr>;
}
19
Source : Helpers.cs
with MIT License
from 71
with MIT License
from 71
private static Func<MethodBase, RuntimeMethodHandle> MakeGetMethodHandle()
{
// Generate the "GetMethodHandle" delegate.
DynamicMethod getMethodHandle = new DynamicMethod(
nameof(GetMethodHandle),
typeof(RuntimeMethodHandle),
new[] { typeof(MethodBase) },
typeof(RuntimeMethodHandle), true);
ILGenerator il = getMethodHandle.GetILGenerator(16);
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Callvirt, typeof(MethodBase).GetProperty("MethodHandle", PUBLIC_INSTANCE).GetMethod);
il.Emit(OpCodes.Ret);
return getMethodHandle.CreateDelegate(typeof(Func<MethodBase, RuntimeMethodHandle>))
as Func<MethodBase, RuntimeMethodHandle>;
}
19
Source : ReaderCache.cs
with Apache License 2.0
from aadreja
with Apache License 2.0
from aadreja
internal static Func<IDataReader, T> ReaderToObject(IDataReader rdr)
{
MethodInfo rdrGetValueMethod = rdr.GetType().GetMethod("get_Item", new Type[] { typeof(int) });
Type[] args = { typeof(IDataReader) };
DynamicMethod method = new DynamicMethod("DynamicRead" + Guid.NewGuid().ToString(), typeof(T), args, typeof(Repository<T>).Module, true);
ILGenerator il = method.GetILGenerator();
LocalBuilder result = il.DeclareLocal(typeof(T)); //loc_0
il.Emit(OpCodes.Newobj, typeof(T).GetConstructor(Type.EmptyTypes));
il.Emit(OpCodes.Stloc_0, result); //Pops the current value from the top of the evaluation stack and stores it in a the local variable list at a specified index.
Label tryBlock = il.BeginExceptionBlock();
LocalBuilder valueCopy = il.DeclareLocal(typeof(object)); //declare local variable to store object value. loc_1
il.DeclareLocal(typeof(int)); //declare local variable to store index //loc_2
il.Emit(OpCodes.Ldc_I4_0); //load 0 in index
il.Emit(OpCodes.Stloc_2); //pop and save to local variable loc 2
//get FieldInfo of all properties
TableAttribute tableInfo = EnreplacedyCache.Get(typeof(T));
for (int i = 0; i < rdr.FieldCount; i++)
{
tableInfo.Columns.TryGetValue(rdr.GetName(i), out ColumnAttribute columnInfo);
if (columnInfo != null && columnInfo.SetMethod != null)
{
Label endIfLabel = il.DefineLabel();
il.Emit(OpCodes.Ldarg_0);//load the argument. Loads the argument at index 0 onto the evaluation stack.
il.Emit(OpCodes.Ldc_I4, i); //push field index as int32 to the stack. Pushes a supplied value of type int32 onto the evaluation stack as an int32.
il.Emit(OpCodes.Dup);//copy value
il.Emit(OpCodes.Stloc_2);//pop and save value to loc 2
il.Emit(OpCodes.Callvirt, rdrGetValueMethod); //Call rdr[i] method - Calls a late - bound method on an object, pushing the return value onto the evaluation stack.
//TODO: dynamic location using valueCopyLocal
il.Emit(OpCodes.Stloc_1); //pop the value and push in stack location 1
il.Emit(OpCodes.Ldloc_1); //load the variable in location 1
il.Emit(OpCodes.Isinst, typeof(DBNull)); //check whether value is null - Tests whether an object reference (type O) is an instance of a particular clreplaced.
il.Emit(OpCodes.Brtrue, endIfLabel); //go to end block if value is null
il.Emit(OpCodes.Ldloc_0); //load T result
il.Emit(OpCodes.Ldloc_1); //TODO: dynamic location using valueCopyLocal
//when Enum are without number values
if (columnInfo.Property.PropertyType.IsEnum)
{
Type numericType = Enum.GetUnderlyingType(columnInfo.Property.PropertyType);
if (rdr.GetFieldType(i) == typeof(string))
{
LocalBuilder stringEnumLocal = il.DeclareLocal(typeof(string));
il.Emit(OpCodes.Castclreplaced, typeof(string)); // stack is now [...][string]
il.Emit(OpCodes.Stloc, stringEnumLocal); // stack is now [...]
il.Emit(OpCodes.Ldtoken, columnInfo.Property.PropertyType); // stack is now [...][enum-type-token]
il.EmitCall(OpCodes.Call, typeof(Type).GetMethod(nameof(Type.GetTypeFromHandle)), null);// stack is now [...][enum-type]
il.Emit(OpCodes.Ldloc, stringEnumLocal); // stack is now [...][enum-type][string]
il.Emit(OpCodes.Ldc_I4_1); // stack is now [...][enum-type][string][true]
il.EmitCall(OpCodes.Call, enumParse, null); // stack is now [...][enum-as-object]
il.Emit(OpCodes.Unbox_Any, columnInfo.Property.PropertyType); // stack is now [...][typed-value]
}
else
{
ConvertValueToEnum(il, rdr.GetFieldType(i), columnInfo.Property.PropertyType, numericType);
}
}
else if (columnInfo.Property.PropertyType.IsValueType)
il.Emit(OpCodes.Unbox_Any, rdr.GetFieldType(i)); //type cast
// for nullable type fields
if (columnInfo.Property.PropertyType.IsGenericType && columnInfo.Property.PropertyType.GetGenericTypeDefinition() == typeof(Nullable<>))
{
var underlyingType = Nullable.GetUnderlyingType(columnInfo.Property.PropertyType);
il.Emit(OpCodes.Newobj, columnInfo.Property.PropertyType.GetConstructor(new Type[] { underlyingType }));
}
il.Emit(OpCodes.Callvirt, columnInfo.SetMethod);
il.Emit(OpCodes.Nop);
il.MarkLabel(endIfLabel);
}
}
il.BeginCatchBlock(typeof(Exception)); //begin try block. exception is in stack
il.Emit(OpCodes.Ldloc_2); //load index
il.Emit(OpCodes.Ldarg_0); //load argument reader
il.Emit(OpCodes.Ldloc_1); //load value //TODO: dynamic location using valueCopyLocal
il.EmitCall(OpCodes.Call, typeof(ReaderCache<T>).GetMethod(nameof(ReaderCache<T>.HandleException)), null); //call exception handler
il.EndExceptionBlock();
il.Emit(OpCodes.Ldloc, result);
il.Emit(OpCodes.Ret);
var funcType = System.Linq.Expressions.Expression.GetFuncType(typeof(IDataReader), typeof(T));
return (Func<IDataReader, T>)method.CreateDelegate(funcType);
}
19
Source : ReaderCache.cs
with Apache License 2.0
from aadreja
with Apache License 2.0
from aadreja
private static void ConvertValueToEnum(ILGenerator il, Type from, Type to, Type via)
{
MethodInfo op;
if (from == (via ?? to))
{
il.Emit(OpCodes.Unbox_Any, to); // stack is now [target][target][typed-value]
}
else if ((op = GetOperator(from, to)) != null)
{
// this is handy for things like decimal <===> double
il.Emit(OpCodes.Unbox_Any, from); // stack is now [target][target][data-typed-value]
il.Emit(OpCodes.Call, op); // stack is now [target][target][typed-value]
}
else
{
bool handled = false;
OpCode opCode = default;
switch (Type.GetTypeCode(from))
{
case TypeCode.Boolean:
case TypeCode.Byte:
case TypeCode.SByte:
case TypeCode.Int16:
case TypeCode.UInt16:
case TypeCode.Int32:
case TypeCode.UInt32:
case TypeCode.Int64:
case TypeCode.UInt64:
case TypeCode.Single:
case TypeCode.Double:
handled = true;
switch (Type.GetTypeCode(via ?? to))
{
case TypeCode.Byte:
opCode = OpCodes.Conv_Ovf_I1_Un; break;
case TypeCode.SByte:
opCode = OpCodes.Conv_Ovf_I1; break;
case TypeCode.UInt16:
opCode = OpCodes.Conv_Ovf_I2_Un; break;
case TypeCode.Int16:
opCode = OpCodes.Conv_Ovf_I2; break;
case TypeCode.UInt32:
opCode = OpCodes.Conv_Ovf_I4_Un; break;
case TypeCode.Boolean: // boolean is basically an int, at least at this level
case TypeCode.Int32:
opCode = OpCodes.Conv_Ovf_I4; break;
case TypeCode.UInt64:
opCode = OpCodes.Conv_Ovf_I8_Un; break;
case TypeCode.Int64:
opCode = OpCodes.Conv_Ovf_I8; break;
case TypeCode.Single:
opCode = OpCodes.Conv_R4; break;
case TypeCode.Double:
opCode = OpCodes.Conv_R8; break;
default:
handled = false;
break;
}
break;
}
if (handled)
{
il.Emit(OpCodes.Unbox_Any, from); // stack is now [target][target][col-typed-value]
il.Emit(opCode); // stack is now [target][target][typed-value]
if (to == typeof(bool))
{ // compare to zero; I checked "csc" - this is the trick it uses; nice
il.Emit(OpCodes.Ldc_I4_0);
il.Emit(OpCodes.Ceq);
il.Emit(OpCodes.Ldc_I4_0);
il.Emit(OpCodes.Ceq);
}
}
else
{
il.Emit(OpCodes.Ldtoken, via ?? to); // stack is now [target][target][value][member-type-token]
il.EmitCall(OpCodes.Call, typeof(Type).GetMethod(nameof(Type.GetTypeFromHandle)), null); // stack is now [target][target][value][member-type]
il.EmitCall(OpCodes.Call, typeof(Convert).GetMethod(nameof(Convert.ChangeType), new Type[] { typeof(object), typeof(Type) }), null); // stack is now [target][target][boxed-member-type-value]
il.Emit(OpCodes.Unbox_Any, to); // stack is now [target][target][typed-value]
}
}
}
19
Source : ReaderCache.cs
with Apache License 2.0
from aadreja
with Apache License 2.0
from aadreja
private static Action<object, IDbCommand> AddParametersIL(object param, IDbCommand cmd)
{
Type pType = param.GetType();
Type[] args = { typeof(object), typeof(IDbCommand) };
DynamicMethod method = new DynamicMethod("DynamicAddParam" + Guid.NewGuid().ToString(), null, args, typeof(ParameterCache).Module, true);
ILGenerator il = method.GetILGenerator();
foreach (PropertyInfo property in pType.GetProperties())
{
il.Emit(OpCodes.Ldarg_1);//load the idbcommand. Loads the argument at index 0 onto the evaluation stack.
//name
il.Emit(OpCodes.Ldstr, property.Name);
//dbtype
//dynamic property will always return System.Object as property type. Get Type from the value
Type type = GetTypeOfDynamicProperty(property, param);
if (type.IsEnum) type = Enum.GetUnderlyingType(type);
if(TypeCache.TypeToDbType.TryGetValue(type, out DbType dbType))
il.Emit(OpCodes.Ldc_I4_S, (byte)dbType);
else
il.Emit(OpCodes.Ldc_I4_S, (byte)DbType.String); //TODO: fix when unkown type
//value
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Callvirt, property.GetMethod);
//box if value type
if (property.PropertyType.IsValueType)
il.Emit(OpCodes.Box, property.PropertyType);
il.Emit(OpCodes.Call, addInParameter);
il.Emit(OpCodes.Nop);
}
il.Emit(OpCodes.Ret);
var actionType = System.Linq.Expressions.Expression.GetActionType(typeof(object), typeof(IDbCommand));
return (Action<object, IDbCommand>)method.CreateDelegate(actionType);
}
19
Source : Helpers.cs
with MIT License
from ad313
with MIT License
from ad313
private static Func<object, Dictionary<string, object>> CreateDictionaryGenerator(Type type)
{
var dm = new DynamicMethod($"Dictionary{Guid.NewGuid()}", typeof(Dictionary<string, object>), new[] { typeof(object) }, type, true);
ILGenerator il = dm.GetILGenerator();
il.DeclareLocal(typeof(Dictionary<string, object>));
il.Emit(OpCodes.Nop);
il.Emit(OpCodes.Newobj, typeof(Dictionary<string, object>).GetConstructor(Type.EmptyTypes));
il.Emit(OpCodes.Stloc_0);
foreach (var item in type.GetProperties(BindingFlags.Public | BindingFlags.Instance))
{
string columnName = item.Name;
il.Emit(OpCodes.Nop);
il.Emit(OpCodes.Ldloc_0);
il.Emit(OpCodes.Ldstr, columnName);
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Callvirt, item.GetGetMethod());
if (item.PropertyType.IsValueType)
{
il.Emit(OpCodes.Box, item.PropertyType);
}
il.Emit(OpCodes.Callvirt, typeof(Dictionary<string, object>).GetMethod("Add"));
}
il.Emit(OpCodes.Nop);
il.Emit(OpCodes.Ldloc_0);
il.Emit(OpCodes.Ret);
return (Func<object, Dictionary<string, object>>)dm.CreateDelegate(typeof(Func<object, Dictionary<string, object>>));
}
19
Source : DarksVMTrampoline.cs
with GNU General Public License v3.0
from Aekras1a
with GNU General Public License v3.0
from Aekras1a
private static DynamicMethod CreateTrampolineTyped(int moduleId, ulong codeAdr, uint key, DarksVMFuncSig sig, uint sigId)
{
var dm = new DynamicMethod("", sig.RetType, sig.ParamTypes, Unverifier.Module, true);
var gen = dm.GetILGenerator();
gen.Emit(System.Reflection.Emit.OpCodes.Ldc_I4, moduleId);
gen.Emit(System.Reflection.Emit.OpCodes.Ldc_I8, (long) codeAdr);
gen.Emit(System.Reflection.Emit.OpCodes.Ldc_I4, (int) key);
gen.Emit(System.Reflection.Emit.OpCodes.Ldc_I4, (int) sigId);
gen.Emit(System.Reflection.Emit.OpCodes.Ldc_I4, sig.ParamTypes.Length);
gen.Emit(System.Reflection.Emit.OpCodes.Newarr, typeof(void*));
for(var i = 0; i < sig.ParamTypes.Length; i++)
{
gen.Emit(System.Reflection.Emit.OpCodes.Dup);
gen.Emit(System.Reflection.Emit.OpCodes.Ldc_I4, i);
if(sig.ParamTypes[i].IsByRef)
{
gen.Emit(System.Reflection.Emit.OpCodes.Ldarg, i);
gen.Emit(System.Reflection.Emit.OpCodes.Mkrefany, sig.ParamTypes[i].GetElementType());
}
else
{
gen.Emit(System.Reflection.Emit.OpCodes.Ldarga, i);
gen.Emit(System.Reflection.Emit.OpCodes.Mkrefany, sig.ParamTypes[i]);
}
var local = gen.DeclareLocal(typeof(TypedReference));
gen.Emit(System.Reflection.Emit.OpCodes.Stloc, local);
gen.Emit(System.Reflection.Emit.OpCodes.Ldloca, local);
gen.Emit(System.Reflection.Emit.OpCodes.Conv_I);
gen.Emit(System.Reflection.Emit.OpCodes.Stelem_I);
}
if(sig.RetType != typeof(void))
{
var retVar = gen.DeclareLocal(sig.RetType);
var retRef = gen.DeclareLocal(typeof(TypedReference));
gen.Emit(System.Reflection.Emit.OpCodes.Ldloca, retVar);
gen.Emit(System.Reflection.Emit.OpCodes.Mkrefany, sig.RetType);
gen.Emit(System.Reflection.Emit.OpCodes.Stloc, retRef);
gen.Emit(System.Reflection.Emit.OpCodes.Ldloca, retRef);
gen.Emit(System.Reflection.Emit.OpCodes.Call, entryStubTyped);
gen.Emit(System.Reflection.Emit.OpCodes.Ldloc, retVar);
}
else
{
gen.Emit(System.Reflection.Emit.OpCodes.Ldnull);
gen.Emit(System.Reflection.Emit.OpCodes.Call, entryStubTyped);
}
gen.Emit(System.Reflection.Emit.OpCodes.Ret);
return dm;
}
19
Source : DirectCall.cs
with GNU General Public License v3.0
from Aekras1a
with GNU General Public License v3.0
from Aekras1a
public static MethodBase GetDirectInvocationProxy(MethodBase method)
{
var proxy = (MethodBase) directProxies[method];
if(proxy != null)
return proxy;
lock(directProxies)
{
proxy = (MethodBase) directProxies[method];
if(proxy != null)
return proxy;
var parameters = method.GetParameters();
var paramTypes = new Type[parameters.Length + (method.IsStatic ? 0 : 1)];
for(var i = 0; i < paramTypes.Length; i++)
if(method.IsStatic)
{
paramTypes[i] = parameters[i].ParameterType;
}
else
{
if(i == 0)
paramTypes[0] = method.DeclaringType;
else
paramTypes[i] = parameters[i - 1].ParameterType;
}
var retType = method is MethodInfo ? ((MethodInfo) method).ReturnType : typeof(void);
var dm = new DynamicMethod("", retType, paramTypes, Unverifier.Module, true);
var gen = dm.GetILGenerator();
for(var i = 0; i < paramTypes.Length; i++)
if(!method.IsStatic && i == 0 && paramTypes[0].IsValueType)
gen.Emit(System.Reflection.Emit.OpCodes.Ldarga, i);
else
gen.Emit(System.Reflection.Emit.OpCodes.Ldarg, i);
if(method is MethodInfo)
gen.Emit(System.Reflection.Emit.OpCodes.Call, (MethodInfo) method);
else
gen.Emit(System.Reflection.Emit.OpCodes.Call, (ConstructorInfo) method);
gen.Emit(System.Reflection.Emit.OpCodes.Ret);
directProxies[method] = dm;
return dm;
}
}
19
Source : DirectCall.cs
with GNU General Public License v3.0
from Aekras1a
with GNU General Public License v3.0
from Aekras1a
public static TypedInvocation GetTypedInvocationProxy(MethodBase method, OpCode opCode, Type constrainType)
{
Hashtable table;
object key;
if(constrainType == null)
{
key = new KeyValuePair<MethodBase, OpCode>(method, opCode);
table = typedProxies;
}
else
{
key = new KeyValuePair<MethodBase, Type>(method, constrainType);
table = constrainedProxies;
}
var proxy = (TypedInvocation) table[key];
if(proxy != null)
return proxy;
lock(typedProxies)
{
proxy = (TypedInvocation) table[key];
if(proxy != null)
return proxy;
var parameters = method.GetParameters();
Type[] paramTypes;
if(opCode != System.Reflection.Emit.OpCodes.Newobj)
{
paramTypes = new Type[parameters.Length + (method.IsStatic ? 0 : 1) + 1];
for(var i = 0; i < paramTypes.Length - 1; i++)
if(method.IsStatic)
{
paramTypes[i] = parameters[i].ParameterType;
}
else
{
if(i == 0)
if(constrainType != null)
paramTypes[0] = constrainType.MakeByRefType();
else if(method.DeclaringType.IsValueType)
paramTypes[0] = method.DeclaringType.MakeByRefType();
else
paramTypes[0] = method.DeclaringType;
else
paramTypes[i] = parameters[i - 1].ParameterType;
}
}
else
{
paramTypes = new Type[parameters.Length + 1];
for(var i = 0; i < paramTypes.Length - 1; i++) paramTypes[i] = parameters[i].ParameterType;
}
var retType = method is MethodInfo ? ((MethodInfo) method).ReturnType : typeof(void);
if(opCode == System.Reflection.Emit.OpCodes.Newobj)
retType = method.DeclaringType;
var dm = new DynamicMethod("", typeof(object), new[] {typeof(DarksVMContext), typeof(IReference[]), typeof(Type[])},
Unverifier.Module, true);
var gen = dm.GetILGenerator();
for(var i = 0; i < paramTypes.Length - 1; i++)
{
var paramType = paramTypes[i];
var isByRef = paramType.IsByRef;
if(isByRef)
paramType = paramType.GetElementType();
var typedRefLocal = gen.DeclareLocal(typeof(TypedReference));
gen.Emit(System.Reflection.Emit.OpCodes.Ldarg_1);
gen.Emit(System.Reflection.Emit.OpCodes.Ldc_I4, i);
gen.Emit(System.Reflection.Emit.OpCodes.Ldelem_Ref);
gen.Emit(System.Reflection.Emit.OpCodes.Ldarg_0);
gen.Emit(System.Reflection.Emit.OpCodes.Ldloca, typedRefLocal);
gen.Emit(System.Reflection.Emit.OpCodes.Ldarg_2);
gen.Emit(System.Reflection.Emit.OpCodes.Ldc_I4, i);
gen.Emit(System.Reflection.Emit.OpCodes.Ldelem_Ref);
gen.Emit(System.Reflection.Emit.OpCodes.Callvirt, refToTypedRef);
gen.Emit(System.Reflection.Emit.OpCodes.Ldloca, typedRefLocal);
gen.Emit(System.Reflection.Emit.OpCodes.Ldarg_2);
gen.Emit(System.Reflection.Emit.OpCodes.Ldc_I4, i);
gen.Emit(System.Reflection.Emit.OpCodes.Ldelem_Ref);
gen.Emit(System.Reflection.Emit.OpCodes.Call, castTypedRef);
gen.Emit(System.Reflection.Emit.OpCodes.Ldloc, typedRefLocal);
gen.Emit(System.Reflection.Emit.OpCodes.Refanyval, paramType);
if(!isByRef)
gen.Emit(System.Reflection.Emit.OpCodes.Ldobj, paramType);
}
if(constrainType != null)
gen.Emit(System.Reflection.Emit.OpCodes.Constrained, constrainType);
if(method is MethodInfo)
gen.Emit(opCode, (MethodInfo) method);
else
gen.Emit(opCode, (ConstructorInfo) method);
if(retType.IsByRef)
{
gen.Emit(System.Reflection.Emit.OpCodes.Mkrefany, retType.GetElementType());
gen.Emit(System.Reflection.Emit.OpCodes.Newobj, newTypedRef);
}
else if(retType == typeof(void))
{
gen.Emit(System.Reflection.Emit.OpCodes.Ldnull);
}
else if(retType.IsValueType)
{
gen.Emit(System.Reflection.Emit.OpCodes.Box, retType);
}
gen.Emit(System.Reflection.Emit.OpCodes.Ret);
proxy = (TypedInvocation) dm.CreateDelegate(typeof(TypedInvocation));
table[key] = proxy;
return proxy;
}
}
19
Source : EHHelper.cs
with GNU General Public License v3.0
from Aekras1a
with GNU General Public License v3.0
from Aekras1a
private static bool BuildExceptionDispatchInfo(Type type)
{
try
{
var capture = type.GetMethod("Capture");
var thr = type.GetMethod("Throw");
var dm = new DynamicMethod("", typeof(void), new[] {typeof(Exception), typeof(string), typeof(bool)});
var ilGen = dm.GetILGenerator();
ilGen.Emit(System.Reflection.Emit.OpCodes.Ldarg_0);
ilGen.Emit(System.Reflection.Emit.OpCodes.Call, capture);
ilGen.Emit(System.Reflection.Emit.OpCodes.Call, thr);
ilGen.Emit(System.Reflection.Emit.OpCodes.Ret);
rethrow = (Throw) dm.CreateDelegate(typeof(Throw));
}
catch
{
return false;
}
return true;
}
19
Source : EHHelper.cs
with GNU General Public License v3.0
from Aekras1a
with GNU General Public License v3.0
from Aekras1a
private static bool BuildInternalPreserve(Type type)
{
try
{
const BindingFlags fl = BindingFlags.Static | BindingFlags.NonPublic | BindingFlags.InvokeMethod;
var at = (string) typeof(Environment).InvokeMember("GetResourceString", fl, null, null, new object[] {"Word_At"});
var preserve = type.GetMethod("InternalPreserveStackTrace", BindingFlags.Instance | BindingFlags.NonPublic);
var field = type.GetField("_remoteStackTraceString", BindingFlags.Instance | BindingFlags.NonPublic);
var stackTrace = type.GetProperty("StackTrace", BindingFlags.Instance | BindingFlags.Public).GetGetMethod();
var fmt = typeof(string).GetMethod("Format", new[] {typeof(string), typeof(object), typeof(object)});
var dm = new DynamicMethod("", typeof(void), new[] {typeof(Exception), typeof(string), typeof(bool)}, true);
var ilGen = dm.GetILGenerator();
var lbl = ilGen.DefineLabel();
var lbl2 = ilGen.DefineLabel();
var lbl3 = ilGen.DefineLabel();
ilGen.Emit(System.Reflection.Emit.OpCodes.Ldarg_0);
ilGen.Emit(System.Reflection.Emit.OpCodes.Dup);
ilGen.Emit(System.Reflection.Emit.OpCodes.Dup);
ilGen.Emit(System.Reflection.Emit.OpCodes.Ldfld, field);
ilGen.Emit(System.Reflection.Emit.OpCodes.Brtrue, lbl2);
ilGen.Emit(System.Reflection.Emit.OpCodes.Callvirt, stackTrace);
ilGen.Emit(System.Reflection.Emit.OpCodes.Br, lbl3);
ilGen.MarkLabel(lbl2);
ilGen.Emit(System.Reflection.Emit.OpCodes.Ldfld, field);
ilGen.MarkLabel(lbl3);
ilGen.Emit(System.Reflection.Emit.OpCodes.Ldarg_0);
ilGen.Emit(System.Reflection.Emit.OpCodes.Call, preserve);
ilGen.Emit(System.Reflection.Emit.OpCodes.Stfld, field);
ilGen.Emit(System.Reflection.Emit.OpCodes.Ldarg_1);
ilGen.Emit(System.Reflection.Emit.OpCodes.Brfalse, lbl);
ilGen.Emit(System.Reflection.Emit.OpCodes.Ldarg_2);
ilGen.Emit(System.Reflection.Emit.OpCodes.Brtrue, lbl);
ilGen.Emit(System.Reflection.Emit.OpCodes.Ldarg_0);
ilGen.Emit(System.Reflection.Emit.OpCodes.Dup);
ilGen.Emit(System.Reflection.Emit.OpCodes.Ldstr,
"{1}" + Environment.NewLine + " " + at + " DarksVM.Load() [{0}]" + Environment.NewLine);
ilGen.Emit(System.Reflection.Emit.OpCodes.Ldarg_1);
ilGen.Emit(System.Reflection.Emit.OpCodes.Ldarg_0);
ilGen.Emit(System.Reflection.Emit.OpCodes.Ldfld, field);
ilGen.Emit(System.Reflection.Emit.OpCodes.Call, fmt);
ilGen.Emit(System.Reflection.Emit.OpCodes.Stfld, field);
ilGen.Emit(System.Reflection.Emit.OpCodes.Throw);
ilGen.MarkLabel(lbl);
ilGen.Emit(System.Reflection.Emit.OpCodes.Ldarg_0);
ilGen.Emit(System.Reflection.Emit.OpCodes.Throw);
rethrow = (Throw) dm.CreateDelegate(typeof(Throw));
}
catch(Exception ex)
{
Console.WriteLine(ex);
return false;
}
return true;
}
19
Source : DarksVMTrampoline.cs
with GNU General Public License v3.0
from Aekras1a
with GNU General Public License v3.0
from Aekras1a
private static DynamicMethod CreateTrampolineNormal(int moduleId, ulong codeAdr, uint key, DarksVMFuncSig sig, uint sigId)
{
var dm = new DynamicMethod("", sig.RetType, sig.ParamTypes, Unverifier.Module, true);
var gen = dm.GetILGenerator();
gen.Emit(System.Reflection.Emit.OpCodes.Ldc_I4, moduleId);
gen.Emit(System.Reflection.Emit.OpCodes.Ldc_I8, (long) codeAdr);
gen.Emit(System.Reflection.Emit.OpCodes.Ldc_I4, (int) key);
gen.Emit(System.Reflection.Emit.OpCodes.Ldc_I4, (int) sigId);
gen.Emit(System.Reflection.Emit.OpCodes.Ldc_I4, sig.ParamTypes.Length);
gen.Emit(System.Reflection.Emit.OpCodes.Newarr, typeof(object));
for(var i = 0; i < sig.ParamTypes.Length; i++)
{
gen.Emit(System.Reflection.Emit.OpCodes.Dup);
gen.Emit(System.Reflection.Emit.OpCodes.Ldc_I4, i);
gen.Emit(System.Reflection.Emit.OpCodes.Ldarg, i);
if(sig.ParamTypes[i].IsValueType)
gen.Emit(System.Reflection.Emit.OpCodes.Box, sig.ParamTypes[i]);
gen.Emit(System.Reflection.Emit.OpCodes.Stelem_Ref);
}
gen.Emit(System.Reflection.Emit.OpCodes.Call, entryStubNormal);
if(sig.RetType == typeof(void))
gen.Emit(System.Reflection.Emit.OpCodes.Pop);
else if(sig.RetType.IsValueType)
gen.Emit(System.Reflection.Emit.OpCodes.Unbox_Any, sig.RetType);
else
gen.Emit(System.Reflection.Emit.OpCodes.Castclreplaced, sig.RetType);
gen.Emit(System.Reflection.Emit.OpCodes.Ret);
return dm;
}
19
Source : TypeExtend.cs
with Mozilla Public License 2.0
from agebullhu
with Mozilla Public License 2.0
from agebullhu
public static Func<TArg, TRes> CreateFunc<TArg, TRes>(TypeInfo callInfo, string methodName, TypeInfo argInfo, TypeInfo resInfo)
{
var typeConstructor = resInfo.GetConstructor(Type.EmptyTypes);
if (typeConstructor == null)
throw new ArgumentException($"类型{callInfo.FullName}没有无参构造函数");
var innerMethod = callInfo.GetMethod(methodName);
if (innerMethod == null)
throw new ArgumentException($"类型{callInfo.FullName}没有名称为{methodName}的方法");
if (innerMethod.ReturnType != resInfo)
throw new ArgumentException($"类型{callInfo.FullName}的方法{methodName}返回值不为{resInfo.FullName}");
var args = innerMethod.GetParameters();
if (args.Length != 1)
throw new ArgumentException($"类型{callInfo.FullName}的方法{methodName}参数不是一个");
if (args[0].ParameterType != argInfo)
throw new ArgumentException($"类型{callInfo.FullName}的方法{methodName}唯一参数不为{argInfo.FullName}");
//构造匿名方法
var callMethod = new DynamicMethod(methodName, typeof(TRes), new[] { typeof(TArg) });
//构造动态IL(方法内部实现)
var il = callMethod.GetILGenerator();
il.Emit(OpCodes.Nop);
//1 参数类型转换
il.Emit(OpCodes.Ldarg, 0);
il.Emit(OpCodes.Castclreplaced, argInfo);
var arg = il.DeclareLocal(argInfo);
il.Emit(OpCodes.Stloc, arg);
//2 调用对象构造
il.Emit(OpCodes.Newobj, typeConstructor);
var call = il.DeclareLocal(callInfo);
il.Emit(OpCodes.Stloc, call);
//3 方法调用
il.Emit(OpCodes.Ldloc, call);
il.Emit(OpCodes.Ldloc, arg);
il.Emit(OpCodes.Callvirt, innerMethod);
var ret = il.DeclareLocal(innerMethod.ReturnType);
//4 返回值转换
il.Emit(OpCodes.Stloc, ret);
il.Emit(OpCodes.Ldloc, ret);
il.Emit(OpCodes.Castclreplaced, typeof(TRes).GetTypeInfo());
var res = il.DeclareLocal(resInfo);
//5 返回
il.Emit(OpCodes.Stloc, res);
il.Emit(OpCodes.Ldloc, res);
il.Emit(OpCodes.Ret);
//返回动态委托
return callMethod.CreateDelegate(typeof(Func<TArg, TRes>)) as Func<TArg, TRes>;
}
19
Source : TypeExtend.cs
with Mozilla Public License 2.0
from agebullhu
with Mozilla Public License 2.0
from agebullhu
public static Func<TRes> CreateFunc<TRes>(TypeInfo callInfo, string methodName, TypeInfo resInfo)
{
var typeConstructor = resInfo.GetConstructor(Type.EmptyTypes);
if (typeConstructor == null)
throw new ArgumentException($"类型{callInfo.FullName}没有无参构造函数");
var innerMethod = callInfo.GetMethod(methodName);
if (innerMethod == null)
throw new ArgumentException($"类型{callInfo.FullName}没有名称为{methodName}的方法");
if (innerMethod.ReturnType != resInfo)
throw new ArgumentException($"类型{callInfo.FullName}的方法{methodName}返回值不为{resInfo.FullName}");
var args = innerMethod.GetParameters();
if (args.Length > 0)
throw new ArgumentException($"类型{callInfo.FullName}的方法{methodName}参数不为空");
//构造匿名方法
var callMethod = new DynamicMethod(methodName, typeof(TRes), null);
//构造动态IL(方法内部实现)
var il = callMethod.GetILGenerator();
il.Emit(OpCodes.Nop);
//1 调用对象构造
il.Emit(OpCodes.Newobj, typeConstructor);
var call = il.DeclareLocal(callInfo);
il.Emit(OpCodes.Stloc, call);
//3 方法调用
il.Emit(OpCodes.Ldloc, call);
il.Emit(OpCodes.Callvirt, innerMethod);
var ret = il.DeclareLocal(innerMethod.ReturnType);
//4 返回值转换
il.Emit(OpCodes.Stloc, ret);
il.Emit(OpCodes.Ldloc, ret);
il.Emit(OpCodes.Castclreplaced, typeof(TRes).GetTypeInfo());
var res = il.DeclareLocal(resInfo);
//5 返回
il.Emit(OpCodes.Stloc, res);
il.Emit(OpCodes.Ldloc, res);
il.Emit(OpCodes.Ret);
//返回动态委托
return callMethod.CreateDelegate(typeof(Func<TRes>)) as Func<TRes>;
}
19
Source : ZeroDiscover.cs
with Mozilla Public License 2.0
from agebullhu
with Mozilla Public License 2.0
from agebullhu
public static Func<TRes> CreateFunc<TRes>(TypeInfo callInfo, string methodName, TypeInfo resInfo)
{
ConstructorInfo constructor = callInfo.GetConstructor(Type.EmptyTypes);
if (constructor == (ConstructorInfo)null)
throw new ArgumentException("类型" + callInfo.FullName + "没有无参构造函数");
MethodInfo method = callInfo.GetMethod(methodName);
if (method == (MethodInfo)null)
throw new ArgumentException("类型" + callInfo.FullName + "没有名称为" + methodName + "的方法");
if (method.ReturnType != (Type)resInfo)
throw new ArgumentException("类型" + callInfo.FullName + "的方法" + methodName + "返回值不为" + resInfo.FullName);
if ((uint)method.GetParameters().Length > 0U)
throw new ArgumentException("类型" + callInfo.FullName + "的方法" + methodName + "参数不为空");
DynamicMethod dynamicMethod = new DynamicMethod(methodName, typeof(TRes), (Type[])null);
ILGenerator ilGenerator = dynamicMethod.GetILGenerator();
ilGenerator.Emit(OpCodes.Nop);
ilGenerator.Emit(OpCodes.Newobj, constructor);
LocalBuilder local1 = ilGenerator.DeclareLocal((Type)callInfo);
ilGenerator.Emit(OpCodes.Stloc, local1);
ilGenerator.Emit(OpCodes.Ldloc, local1);
ilGenerator.Emit(OpCodes.Callvirt, method);
LocalBuilder local2 = ilGenerator.DeclareLocal(method.ReturnType);
ilGenerator.Emit(OpCodes.Stloc, local2);
ilGenerator.Emit(OpCodes.Ldloc, local2);
ilGenerator.Emit(OpCodes.Castclreplaced, (Type)typeof(TRes).GetTypeInfo());
LocalBuilder local3 = ilGenerator.DeclareLocal((Type)resInfo);
ilGenerator.Emit(OpCodes.Stloc, local3);
ilGenerator.Emit(OpCodes.Ldloc, local3);
ilGenerator.Emit(OpCodes.Ret);
return dynamicMethod.CreateDelegate(typeof(Func<TRes>)) as Func<TRes>;
}
19
Source : ZeroDiscover.cs
with Mozilla Public License 2.0
from agebullhu
with Mozilla Public License 2.0
from agebullhu
public static Func<TArg, TRes> CreateFunc<TArg, TRes>(TypeInfo callInfo, string methodName, TypeInfo argInfo, TypeInfo resInfo)
{
ConstructorInfo constructor = callInfo.GetConstructor(Type.EmptyTypes);
if (constructor == (ConstructorInfo)null)
throw new ArgumentException("类型" + callInfo.FullName + "没有无参构造函数");
MethodInfo method = callInfo.GetMethod(methodName);
if (method == (MethodInfo)null)
throw new ArgumentException("类型" + callInfo.FullName + "没有名称为" + methodName + "的方法");
if (method.ReturnType != (Type)resInfo)
throw new ArgumentException("类型" + callInfo.FullName + "的方法" + methodName + "返回值不为" + resInfo.FullName);
ParameterInfo[] parameters = method.GetParameters();
if (parameters.Length != 1)
throw new ArgumentException("类型" + callInfo.FullName + "的方法" + methodName + "参数不是一个");
if (parameters[0].ParameterType != (Type)argInfo)
throw new ArgumentException("类型" + callInfo.FullName + "的方法" + methodName + "唯一参数不为" + argInfo.FullName);
DynamicMethod dynamicMethod = new DynamicMethod(methodName, typeof(TRes), new Type[1]
{
typeof (TArg)
});
ILGenerator ilGenerator = dynamicMethod.GetILGenerator();
ilGenerator.Emit(OpCodes.Nop);
ilGenerator.Emit(OpCodes.Ldarg, 0);
ilGenerator.Emit(OpCodes.Castclreplaced, (Type)argInfo);
LocalBuilder local1 = ilGenerator.DeclareLocal((Type)argInfo);
ilGenerator.Emit(OpCodes.Stloc, local1);
ilGenerator.Emit(OpCodes.Newobj, constructor);
LocalBuilder local2 = ilGenerator.DeclareLocal((Type)callInfo);
ilGenerator.Emit(OpCodes.Stloc, local2);
ilGenerator.Emit(OpCodes.Ldloc, local2);
ilGenerator.Emit(OpCodes.Ldloc, local1);
ilGenerator.Emit(OpCodes.Callvirt, method);
LocalBuilder local3 = ilGenerator.DeclareLocal(method.ReturnType);
ilGenerator.Emit(OpCodes.Stloc, local3);
ilGenerator.Emit(OpCodes.Ldloc, local3);
ilGenerator.Emit(OpCodes.Castclreplaced, (Type)typeof(TRes).GetTypeInfo());
LocalBuilder local4 = ilGenerator.DeclareLocal((Type)resInfo);
ilGenerator.Emit(OpCodes.Stloc, local4);
ilGenerator.Emit(OpCodes.Ldloc, local4);
ilGenerator.Emit(OpCodes.Ret);
return dynamicMethod.CreateDelegate(typeof(Func<TArg, TRes>)) as Func<TArg, TRes>;
}
19
Source : ILGeneratorExtensions.cs
with MIT License
from akaskela
with MIT License
from akaskela
public static void CallMethod(this ILGenerator generator, MethodInfo methodInfo)
{
if (methodInfo.IsFinal || !methodInfo.IsVirtual)
{
generator.Emit(OpCodes.Call, methodInfo);
}
else
{
generator.Emit(OpCodes.Callvirt, methodInfo);
}
}
19
Source : Util.cs
with MIT License
from albahari
with MIT License
from albahari
public static Func<object, object> GenDynamicProp (PropertyInfo prop)
{
//return x => prop.GetValue (x);
DynamicMethod dynMeth;
if (prop.DeclaringType.IsInterface)
dynMeth = new DynamicMethod ("", typeof (object), new[] { typeof (object) });
else
dynMeth = new DynamicMethod ("", typeof (object), new[] { typeof (object) }, prop.DeclaringType);
ILGenerator gen = dynMeth.GetILGenerator ();
gen.Emit (OpCodes.Ldarg_0);
if (prop.DeclaringType.IsValueType)
{
gen.DeclareLocal (prop.DeclaringType);
gen.Emit (OpCodes.Unbox_Any, prop.DeclaringType);
gen.Emit (OpCodes.Stloc_0);
gen.Emit (OpCodes.Ldloca_S, 0);
gen.Emit (OpCodes.Call, prop.GetGetMethod (true));
}
else
{
gen.Emit (OpCodes.Castclreplaced, prop.DeclaringType);
gen.Emit (OpCodes.Callvirt, prop.GetGetMethod (true));
}
if (prop.PropertyType.IsValueType) gen.Emit (OpCodes.Box, prop.PropertyType);
gen.Emit (OpCodes.Ret);
return (Func<object, object>)dynMeth.CreateDelegate (typeof (Func<object, object>));
}
19
Source : Instruction.cs
with MIT License
from alexanderkyte
with MIT License
from alexanderkyte
public override void Emit (IEnumerator<WebreplacedemblyInstruction> cursor, ILGenerator ilgen, WebreplacedemblyCodeParser top_level)
{
String method;
switch (Opcode) {
case 0x28:
method = "Load32Bitreplacedigned32";
break;
case 0x29:
method = "Load64Bitreplacedigned64";
break;
case 0x2a:
method = "LoadSingle";
break;
case 0x2b:
method = "LoadDouble";
break;
case 0x2c:
method = "LoadSigned8Bitreplacedigned32";
break;
case 0x2d:
method = "LoadUnsigned8Bitreplacedigned32";
break;
case 0x2e:
method = "LoadSigned16Bitreplacedigned32";
break;
case 0x2f:
method = "LoadUnsigned16Bitreplacedigned32";
break;
case 0x30:
method = "LoadSigned8Bitreplacedigned64";
break;
case 0x31:
method = "LoadUnsigned8Bitreplacedigned64";
break;
case 0x32:
method = "LoadSigned16Bitreplacedigned64";
break;
case 0x33:
method = "LoadUnsigned16Bitreplacedigned64";
break;
case 0x34:
method = "LoadSigned32Bitreplacedigned64";
break;
case 0x35:
method = "LoadUnsigned32Bitreplacedigned64";
break;
case 0x36:
method = "Store32BitFrom32";
break;
case 0x37:
method = "Store64BitFrom32";
break;
case 0x38:
method = "StoreSingle";
break;
case 0x39:
method = "StoreDouble";
break;
case 0x3a:
method = "Store8BitFrom32";
break;
case 0x3b:
method = "Store16BitFrom32";
break;
case 0x3c:
method = "Store8BitFrom64";
break;
case 0x3d:
method = "Store16BitFrom64";
break;
case 0x3e:
method = "Store32BitFrom64";
break;
case 0x3f:
method = "CurrentMemory";
break;
case 0x40:
method = "GrowMemory";
break;
default:
throw new Exception (String.Format("Should not be reached: {0:X}", Opcode));
}
// Our opcode has an offset to apply to this address on top of the stack
// FIXME: we ignore alignment
ilgen.Emit (OpCodes.Ldc_I4, Convert.ToInt32 (offset));
ilgen.Emit (OpCodes.Add);
// Now we want to set ourselves up for a call
var method_info = typeof (WebreplacedemblyModule).GetMethod (method, BindingFlags.Instance | BindingFlags.NonPublic);
if (method_info == null)
throw new Exception (String.Format("Could not find {0} in runtime", method));
var call_types = new List<Type> ();
foreach (var param_info in method_info.GetParameters ())
call_types.Add (param_info.ParameterType);
ShiftThisArgToFront (ilgen, call_types.ToArray ());
ilgen.Emit(OpCodes.Call, method_info);
return;
}
19
Source : DynamicEnumResolver.cs
with Apache License 2.0
from allenai
with Apache License 2.0
from allenai
private static TypeInfo BuildType(Type enumType)
{
Type underlyingType = Enum.GetUnderlyingType(enumType);
Type formatterType = typeof(IMessagePackFormatter<>).MakeGenericType(enumType);
using (MonoProtection.EnterRefEmitLock())
{
TypeBuilder typeBuilder = Dynamicreplacedembly.Value.DefineType("MessagePack.Formatters." + enumType.FullName.Replace(".", "_") + "Formatter" + Interlocked.Increment(ref nameSequence), TypeAttributes.Public | TypeAttributes.Sealed, null, new[] { formatterType });
// void Serialize(ref MessagePackWriter writer, T value, MessagePackSerializerOptions options);
{
MethodBuilder method = typeBuilder.DefineMethod(
"Serialize",
MethodAttributes.Public | MethodAttributes.Final | MethodAttributes.Virtual,
null,
new Type[] { typeof(MessagePackWriter).MakeByRefType(), enumType, typeof(MessagePackSerializerOptions) });
ILGenerator il = method.GetILGenerator();
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Ldarg_2);
il.Emit(OpCodes.Call, typeof(MessagePackWriter).GetRuntimeMethod(nameof(MessagePackWriter.Write), new[] { underlyingType }));
il.Emit(OpCodes.Ret);
}
// T Deserialize(ref MessagePackReader reader, MessagePackSerializerOptions options);
{
MethodBuilder method = typeBuilder.DefineMethod(
"Deserialize",
MethodAttributes.Public | MethodAttributes.Final | MethodAttributes.Virtual,
enumType,
new Type[] { typeof(MessagePackReader).MakeByRefType(), typeof(MessagePackSerializerOptions) });
ILGenerator il = method.GetILGenerator();
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Call, typeof(MessagePackReader).GetRuntimeMethod("Read" + underlyingType.Name, Type.EmptyTypes));
il.Emit(OpCodes.Ret);
}
return typeBuilder.CreateTypeInfo();
}
}
19
Source : DynamicUnionResolver.cs
with Apache License 2.0
from allenai
with Apache License 2.0
from allenai
private static void BuildSerialize(Type type, UnionAttribute[] infos, MethodBuilder method, FieldBuilder typeToKeyAndJumpMap, ILGenerator il)
{
// if(value == null) return WriteNil
Label elseBody = il.DefineLabel();
Label notFoundType = il.DefineLabel();
il.EmitLdarg(2);
il.Emit(OpCodes.Brtrue_S, elseBody);
il.Emit(OpCodes.Br, notFoundType);
il.MarkLabel(elseBody);
// IFormatterResolver resolver = options.Resolver;
LocalBuilder localResolver = il.DeclareLocal(typeof(IFormatterResolver));
il.EmitLdarg(3);
il.EmitCall(getResolverFromOptions);
il.EmitStloc(localResolver);
LocalBuilder keyPair = il.DeclareLocal(typeof(KeyValuePair<int, int>));
il.EmitLoadThis();
il.EmitLdfld(typeToKeyAndJumpMap);
il.EmitLdarg(2);
il.EmitCall(objectGetType);
il.EmitCall(getTypeHandle);
il.EmitLdloca(keyPair);
il.EmitCall(typeMapDictionaryTryGetValue);
il.Emit(OpCodes.Brfalse, notFoundType);
// writer.WriteArrayHeader(2, false);
il.EmitLdarg(1);
il.EmitLdc_I4(2);
il.EmitCall(MessagePackWriterTypeInfo.WriteArrayHeader);
// writer.Write(keyPair.Key)
il.EmitLdarg(1);
il.EmitLdloca(keyPair);
il.EmitCall(intIntKeyValuePairGetKey);
il.EmitCall(MessagePackWriterTypeInfo.WriteInt32);
Label loopEnd = il.DefineLabel();
// switch-case (offset += resolver.GetFormatter.Serialize(with cast)
var switchLabels = infos.Select(x => new { Label = il.DefineLabel(), Attr = x }).ToArray();
il.EmitLdloca(keyPair);
il.EmitCall(intIntKeyValuePairGetValue);
il.Emit(OpCodes.Switch, switchLabels.Select(x => x.Label).ToArray());
il.Emit(OpCodes.Br, loopEnd); // default
foreach (var item in switchLabels)
{
il.MarkLabel(item.Label);
il.EmitLdloc(localResolver);
il.Emit(OpCodes.Call, getFormatterWithVerify.MakeGenericMethod(item.Attr.SubType));
il.EmitLdarg(1);
il.EmitLdarg(2);
if (item.Attr.SubType.GetTypeInfo().IsValueType)
{
il.Emit(OpCodes.Unbox_Any, item.Attr.SubType);
}
else
{
il.Emit(OpCodes.Castclreplaced, item.Attr.SubType);
}
il.EmitLdarg(3);
il.Emit(OpCodes.Callvirt, getSerialize(item.Attr.SubType));
il.Emit(OpCodes.Br, loopEnd);
}
// return;
il.MarkLabel(loopEnd);
il.Emit(OpCodes.Ret);
// else, return WriteNil
il.MarkLabel(notFoundType);
il.EmitLdarg(1);
il.EmitCall(MessagePackWriterTypeInfo.WriteNil);
il.Emit(OpCodes.Ret);
}
19
Source : MSILGenerator.cs
with MIT License
from aloneguid
with MIT License
from aloneguid
private void GenerateCollector(ILGenerator il, Type clreplacedType,
DataField f,
MethodInfo getValueMethod,
MethodInfo addToListMethod,
MethodInfo addRepLevelMethod,
TypeConversion conversion)
{
//arg 0 - collection of clreplacedes, clr objects
//arg 1 - data items (typed list)
//arg 2 - repereplacedions (optional)
//arg 3 - max repereplacedion level
//make collection a local variable
LocalBuilder collection = il.DeclareLocal(clreplacedType);
il.Emit(Ldarg_0);
il.Emit(Stloc, collection.LocalIndex);
using (il.ForEachLoop(clreplacedType, collection, out LocalBuilder currentElement))
{
if (f.IsArray)
{
//reset repereplacedion level to 0
LocalBuilder rl = il.DeclareLocal(typeof(int));
il.Emit(Ldc_I4_0);
il.StLoc(rl);
//currentElement is a nested array in this case
LocalBuilder array = il.DeclareLocal(typeof(object));
//get array and put into arrayElement
il.Emit(Ldloc, currentElement.LocalIndex);
il.Emit(Callvirt, getValueMethod);
il.Emit(Stloc, array.LocalIndex);
//enumerate this array
using (il.ForEachLoop(f.ClrNullableIfHasNullsType, array, out LocalBuilder arrayElement))
{
//store in destination list
il.CallVirt(addToListMethod, Ldarg_1, arrayElement);
//add repereplacedion level
il.CallVirt(addRepLevelMethod, Ldarg_2, rl);
//set repereplacedion level to max
il.Emit(Ldarg_3);
il.StLoc(rl);
}
}
else
{
//hold item
LocalBuilder item = il.DeclareLocal(f.ClrNullableIfHasNullsType);
//get current value, converting if necessary
il.Emit(Ldloc, currentElement.LocalIndex);
il.Emit(Callvirt, getValueMethod);
if (conversion != null)
{
conversion.Emit(il);
}
il.Emit(Stloc, item.LocalIndex);
//store in destination list
il.Emit(Ldarg_1);
il.Emit(Ldloc, item.LocalIndex);
il.Emit(Callvirt, addToListMethod);
}
}
il.Emit(Ldc_I4_0);
il.Emit(Ret);
}
19
Source : MSILGenerator.cs
with MIT License
from aloneguid
with MIT License
from aloneguid
private void Generatereplacedigner(ILGenerator il, Type clreplacedType, DataField field,
MethodInfo setValueMethod,
MethodInfo getDataMethod,
MethodInfo getRepsMethod,
TypeConversion conversion)
{
//arg 0 - DataColumn
//arg 1 - clreplaced intances array (Array)
if (field.IsArray)
{
LocalBuilder repItem = il.DeclareLocal(typeof(int));
LocalBuilder dce = il.DeclareLocal(typeof(DataColumnEnumerator));
//we will use DataColumnEnumerator for complex types
//create an instance of it
il.Emit(Ldarg_0); //constructor argument
il.Emit(Newobj, typeof(DataColumnEnumerator).GetTypeInfo().DeclaredConstructors.First());
il.StLoc(dce);
LocalBuilder ci = il.DeclareLocal(typeof(int)); //clreplaced index
LocalBuilder clreplacedInstance = il.DeclareLocal(clreplacedType); //clreplaced instance
using (il.ForEachLoopFromEnumerator(typeof(object), dce, out LocalBuilder element))
{
//element should be an array for simple repeatables
//get clreplaced instance by index
il.GetArrayElement(Ldarg_1, ci, true, typeof(Array), clreplacedInstance);
//replacedign data item to clreplaced property
il.CallVirt(setValueMethod, clreplacedInstance, element);
il.Increment(ci);
}
}
else
{
//get values
LocalBuilder data = il.DeclareLocal(typeof(Array));
il.CallVirt(getDataMethod, Ldarg_0);
il.StLoc(data);
//get length of values
LocalBuilder dataLength = il.DeclareLocal(typeof(int));
il.GetArrayLength(data, dataLength);
LocalBuilder dataItem = il.DeclareLocal(field.ClrNullableIfHasNullsType); //current value
bool dataIsRef = field.HasNulls && !field.ClrNullableIfHasNullsType.IsSystemNullable();
LocalBuilder clreplacedInstance = il.DeclareLocal(clreplacedType);
using (il.ForLoop(dataLength, out LocalBuilder iData))
{
//get data value
il.GetArrayElement(data, iData, dataIsRef, field.ClrNullableIfHasNullsType, dataItem);
//get clreplaced instance
il.GetArrayElement(Ldarg_1, iData, true, clreplacedType, clreplacedInstance);
il.LdLoc(clreplacedInstance);
//convert if necessary
if (conversion != null)
{
il.LdLoc(dataItem);
conversion.Emit(il);
}
else
{
il.Emit(Ldloc, dataItem.LocalIndex);
}
//replacedign data item to clreplaced property
il.Emit(Callvirt, setValueMethod);
}
}
il.Emit(Ret);
}
19
Source : MSILGenerator.cs
with MIT License
from aloneguid
with MIT License
from aloneguid
public override void Emit(ILGenerator il)
{
il.Emit(OpCodes.Call, method);
}
19
Source : ILExtensions.cs
with MIT License
from aloneguid
with MIT License
from aloneguid
public static IDisposable ForEachLoopFromEnumerator(this ILGenerator il, Type elementType, LocalBuilder enumerator, out LocalBuilder currentElement)
{
Label lMoveNext = il.DefineLabel();
Label lWork = il.DefineLabel();
currentElement = il.DeclareLocal(elementType);
#if DEBUG
il.EmitWriteLine("foreach-begin");
#endif
//immediately move to "move next" to start enumeration
il.Emit(Br, lMoveNext);
//iteration work block
il.MarkLabel(lWork);
#if DEBUG
il.EmitWriteLine(" foreach-loop");
#endif
//get current element
il.Emit(Ldloc, enumerator.LocalIndex);
il.Emit(Callvirt, getCurrentMethod);
il.Emit(Unbox_Any, elementType);
il.Emit(Stloc, currentElement.LocalIndex);
return il.After(() =>
{
//"move next" block
il.MarkLabel(lMoveNext);
il.Emit(Ldloc, enumerator.LocalIndex); //load enumerator as an argument
il.Emit(Callvirt, moveNextMethod);
il.Emit(Brtrue, lWork); //if result is true, go to lWork
//otherwise, dispose enumerator and exit
//il.Emit(Ldloc, enumerator.LocalIndex);
//il.Emit(Callvirt, disposeMethod);
#if DEBUG
il.EmitWriteLine("foreach-end");
#endif
});
}
19
Source : ILExtensions.cs
with MIT License
from aloneguid
with MIT License
from aloneguid
public static IDisposable ForEachLoop(this ILGenerator il, Type elementType, LocalBuilder collection, out LocalBuilder currentElement)
{
Label lMoveNext = il.DefineLabel();
Label lWork = il.DefineLabel();
currentElement = il.DeclareLocal(elementType);
//get collection enumerator
LocalBuilder enumerator = il.DeclareLocal(typeof(IEnumerator));
#if DEBUG
il.EmitWriteLine("foreach-begin");
#endif
il.Emit(Ldloc, collection.LocalIndex);
il.Emit(Callvirt, getEnumeratorMethod);
il.Emit(Stloc, enumerator.LocalIndex);
//immediately move to "move next" to start enumeration
il.Emit(Br, lMoveNext);
//iteration work block
il.MarkLabel(lWork);
#if DEBUG
il.EmitWriteLine(" foreach-loop");
#endif
//get current element
il.Emit(Ldloc, enumerator.LocalIndex);
il.Emit(Callvirt, getCurrentMethod);
il.Emit(Unbox_Any, elementType);
il.Emit(Stloc, currentElement.LocalIndex);
return il.After(() =>
{
//"move next" block
il.MarkLabel(lMoveNext);
il.Emit(Ldloc, enumerator.LocalIndex); //load enumerator as an argument
il.Emit(Callvirt, moveNextMethod);
il.Emit(Brtrue, lWork); //if result is true, go to lWork
//otherwise, dispose enumerator and exit
//il.Emit(Ldloc, enumerator.LocalIndex);
//il.Emit(Callvirt, disposeMethod);
#if DEBUG
il.EmitWriteLine("foreach-end");
#endif
});
}
19
Source : ILExtensions.cs
with MIT License
from aloneguid
with MIT License
from aloneguid
public static void CallVirt(this ILGenerator il, MethodInfo method, params object[] parameters)
{
if(parameters != null)
{
foreach(object param in parameters)
{
switch (param)
{
case OpCode oc:
il.Emit(oc);
break;
case LocalBuilder lb:
il.Emit(Ldloc, lb.LocalIndex);
break;
default:
throw new NotSupportedException("don't know how to treat parameter " + param?.GetType());
}
}
}
il.Emit(Callvirt, method);
}
19
Source : InterfaceProxyBuilder.cs
with MIT License
from amazingalek
with MIT License
from amazingalek
private void CreateProxyMethodBody(MethodBuilder methodBuilder, MethodInfo target, FieldBuilder instanceField, Type[] argTypes)
{
var il = methodBuilder.GetILGenerator();
// load target instance
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldfld, instanceField);
// invoke target method on instance
for (var i = 0; i < argTypes.Length; i++)
{
il.Emit(OpCodes.Ldarg, i + 1);
}
il.Emit(OpCodes.Call, target);
// return result
il.Emit(OpCodes.Ret);
}
19
Source : Accessor.cs
with MIT License
from andruzzzhka
with MIT License
from andruzzzhka
private static (Getter, Setter) MakeAccessors(string propName)
{
var prop = typeof(T).GetProperty(propName, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.DeclaredOnly);
if (prop == null)
throw new MissingMemberException(typeof(T).Name, propName);
var getM = prop.GetGetMethod(true);
var setM = prop.GetSetMethod(true);
Getter getter = null;
Setter setter = null;
if (typeof(T).IsValueType)
{
if (getM != null)
getter = (Getter)Delegate.CreateDelegate(typeof(Getter), getM);
if (setM != null)
setter = (Setter)Delegate.CreateDelegate(typeof(Setter), setM);
}
else
{
if (getM != null)
{
var dyn = new DynamicMethod($"<>_get__{propName}", typeof(U), new[] { typeof(T).MakeByRefType() }, typeof(PropertyAccessor<T, U>), true);
var il = dyn.GetILGenerator();
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldind_Ref);
il.Emit(OpCodes.Tailcall);
il.Emit(getM.IsVirtual ? OpCodes.Callvirt : OpCodes.Call, getM);
il.Emit(OpCodes.Ret);
getter = (Getter)dyn.CreateDelegate(typeof(Getter));
}
if (setM != null)
{
var dyn = new DynamicMethod($"<>_set__{propName}", typeof(void), new[] { typeof(T).MakeByRefType(), typeof(U) }, typeof(PropertyAccessor<T, U>), true);
var il = dyn.GetILGenerator();
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldind_Ref);
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Tailcall);
il.Emit(setM.IsVirtual ? OpCodes.Callvirt : OpCodes.Call, setM);
il.Emit(OpCodes.Ret);
setter = (Setter)dyn.CreateDelegate(typeof(Setter));
}
}
return (getter, setter);
}
19
Source : DynamicParameters.cs
with MIT License
from anet-team
with MIT License
from anet-team
public DynamicParameters Output<T>(T target, Expression<Func<T, object>> expression, DbType? dbType = null, int? size = null)
{
var failMessage = "Expression must be a property/field chain off of a(n) {0} instance";
failMessage = string.Format(failMessage, typeof(T).Name);
Action @throw = () => throw new InvalidOperationException(failMessage);
// Is it even a MemberExpression?
var lastMemberAccess = expression.Body as MemberExpression;
if (lastMemberAccess == null
|| (!(lastMemberAccess.Member is PropertyInfo)
&& !(lastMemberAccess.Member is FieldInfo)))
{
if (expression.Body.NodeType == ExpressionType.Convert
&& expression.Body.Type == typeof(object)
&& ((UnaryExpression)expression.Body).Operand is MemberExpression)
{
// It's got to be unboxed
lastMemberAccess = (MemberExpression)((UnaryExpression)expression.Body).Operand;
}
else
{
@throw();
}
}
// Does the chain consist of MemberExpressions leading to a ParameterExpression of type T?
MemberExpression diving = lastMemberAccess;
// Retain a list of member names and the member expressions so we can rebuild the chain.
List<string> names = new List<string>();
List<MemberExpression> chain = new List<MemberExpression>();
do
{
// Insert the names in the right order so expression
// "Post.Author.Name" becomes parameter "PostAuthorName"
names.Insert(0, diving?.Member.Name);
chain.Insert(0, diving);
var constant = diving?.Expression as ParameterExpression;
diving = diving?.Expression as MemberExpression;
if (constant != null && constant.Type == typeof(T))
{
break;
}
else if (diving == null
|| (!(diving.Member is PropertyInfo)
&& !(diving.Member is FieldInfo)))
{
@throw();
}
}
while (diving != null);
var dynamicParamName = string.Concat(names.ToArray());
// Before we get all emitty...
var lookup = string.Join("|", names.ToArray());
var cache = CachedOutputSetters<T>.Cache;
var setter = (Action<object, DynamicParameters>)cache[lookup];
if (setter != null) goto MAKECALLBACK;
// Come on let's build a method, let's build it, let's build it now!
var dm = new DynamicMethod("ExpressionParam" + Guid.NewGuid().ToString(), null, new[] { typeof(object), GetType() }, true);
var il = dm.GetILGenerator();
il.Emit(OpCodes.Ldarg_0); // [object]
il.Emit(OpCodes.Castclreplaced, typeof(T)); // [T]
// Count - 1 to skip the last member access
var i = 0;
for (; i < (chain.Count - 1); i++)
{
var member = chain[0].Member;
if (member is PropertyInfo)
{
var get = ((PropertyInfo)member).GetGetMethod(true);
il.Emit(OpCodes.Callvirt, get); // [Member{i}]
}
else // Else it must be a field!
{
il.Emit(OpCodes.Ldfld, (FieldInfo)member); // [Member{i}]
}
}
var paramGetter = GetType().GetMethod("Get", new Type[] { typeof(string) }).MakeGenericMethod(lastMemberAccess.Type);
il.Emit(OpCodes.Ldarg_1); // [target] [DynamicParameters]
il.Emit(OpCodes.Ldstr, dynamicParamName); // [target] [DynamicParameters] [ParamName]
il.Emit(OpCodes.Callvirt, paramGetter); // [target] [value], it's already typed thanks to generic method
// GET READY
var lastMember = lastMemberAccess.Member;
if (lastMember is PropertyInfo)
{
var set = ((PropertyInfo)lastMember).GetSetMethod(true);
il.Emit(OpCodes.Callvirt, set); // SET
}
else
{
il.Emit(OpCodes.Stfld, (FieldInfo)lastMember); // SET
}
il.Emit(OpCodes.Ret); // GO
setter = (Action<object, DynamicParameters>)dm.CreateDelegate(typeof(Action<object, DynamicParameters>));
lock (cache)
{
cache[lookup] = setter;
}
// Queue the preparation to be fired off when adding parameters to the DbCommand
MAKECALLBACK:
(outputCallbacks ?? (outputCallbacks = new List<Action>())).Add(() =>
{
// Finally, prep the parameter and attach the callback to it
var targetMemberType = lastMemberAccess?.Type;
int sizeToSet = (!size.HasValue && targetMemberType == typeof(string)) ? DbString.DefaultLength : size ?? 0;
if (parameters.TryGetValue(dynamicParamName, out ParamInfo parameter))
{
parameter.ParameterDirection = parameter.AttachedParam.Direction = ParameterDirection.InputOutput;
if (parameter.AttachedParam.Size == 0)
{
parameter.Size = parameter.AttachedParam.Size = sizeToSet;
}
}
else
{
dbType = (!dbType.HasValue)
#pragma warning disable 618
? SqlMapper.LookupDbType(targetMemberType, targetMemberType?.Name, true, out SqlMapper.ITypeHandler handler)
#pragma warning restore 618
: dbType;
// CameFromTemplate property would not apply here because this new param
// Still needs to be added to the command
Add(dynamicParamName, expression.Compile().Invoke(target), null, ParameterDirection.InputOutput, sizeToSet);
}
parameter = parameters[dynamicParamName];
parameter.OutputCallback = setter;
parameter.OutputTarget = target;
});
return this;
}
19
Source : ProxyGenerator.cs
with MIT License
from AutoFixture
with MIT License
from AutoFixture
private static void BuildMethodGetHashCode<TDestination>(TypeBuilder type)
{
var methodAttributes = MethodAttributes.Public | MethodAttributes.Virtual | MethodAttributes.HideBySig;
MethodBuilder method = type.DefineMethod("GetHashCode", methodAttributes);
method.SetReturnType(typeof(int));
int derivedGetHashCode = 135;
MethodInfo getHashCode = typeof(TDestination).GetTypeInfo().GetMethod(
"GetHashCode",
Type.EmptyTypes
);
ILGenerator gen = method.GetILGenerator();
gen.DeclareLocal(typeof(int));
Label label = gen.DefineLabel();
gen.Emit(OpCodes.Nop);
gen.Emit(OpCodes.Ldarg_0);
gen.Emit(OpCodes.Call, getHashCode);
gen.Emit(OpCodes.Ldc_I4, derivedGetHashCode);
gen.Emit(OpCodes.Add);
gen.Emit(OpCodes.Stloc_0);
gen.Emit(OpCodes.Br_S, label);
gen.MarkLabel(label);
gen.Emit(OpCodes.Ldloc_0);
gen.Emit(OpCodes.Ret);
}
19
Source : ProxyGenerator.cs
with MIT License
from AutoFixture
with MIT License
from AutoFixture
private static void BuildMethodEquals(TypeBuilder type, FieldInfo equalsHasBeenCalled, FieldInfo comparer)
{
var methodAttributes = MethodAttributes.Public | MethodAttributes.Virtual | MethodAttributes.HideBySig;
MethodBuilder method = type.DefineMethod("Equals", methodAttributes);
MethodInfo objectEquals = typeof(object).GetTypeInfo().GetMethod(
"Equals",
new[] {typeof(object)}
);
MethodInfo equalityComparerEquals = typeof(IEqualityComparer).GetTypeInfo().GetMethod(
"Equals",
new[] {typeof(object), typeof(object)}
);
method.SetReturnType(typeof(bool));
method.SetParameters(typeof(object));
method.DefineParameter(1, ParameterAttributes.None, "obj");
ILGenerator gen = method.GetILGenerator();
gen.DeclareLocal(typeof(bool));
gen.DeclareLocal(typeof(bool));
Label label1 = gen.DefineLabel();
Label label2 = gen.DefineLabel();
gen.Emit(OpCodes.Nop);
gen.Emit(OpCodes.Ldarg_0);
gen.Emit(OpCodes.Ldfld, equalsHasBeenCalled);
gen.Emit(OpCodes.Ldc_I4_0);
gen.Emit(OpCodes.Ceq);
gen.Emit(OpCodes.Stloc_1);
gen.Emit(OpCodes.Ldloc_1);
gen.Emit(OpCodes.Brtrue_S, label1);
gen.Emit(OpCodes.Nop);
gen.Emit(OpCodes.Ldarg_0);
gen.Emit(OpCodes.Ldc_I4_0);
gen.Emit(OpCodes.Stfld, equalsHasBeenCalled);
gen.Emit(OpCodes.Ldarg_0);
gen.Emit(OpCodes.Ldarg_1);
gen.Emit(OpCodes.Call, objectEquals);
gen.Emit(OpCodes.Stloc_0);
gen.Emit(OpCodes.Br_S, label2);
gen.MarkLabel(label1);
gen.Emit(OpCodes.Ldarg_0);
gen.Emit(OpCodes.Ldc_I4_1);
gen.Emit(OpCodes.Stfld, equalsHasBeenCalled);
gen.Emit(OpCodes.Ldarg_0);
gen.Emit(OpCodes.Ldfld, comparer);
gen.Emit(OpCodes.Ldarg_0);
gen.Emit(OpCodes.Ldarg_1);
gen.Emit(OpCodes.Callvirt, equalityComparerEquals);
gen.Emit(OpCodes.Stloc_0);
gen.Emit(OpCodes.Br_S, label2);
gen.MarkLabel(label2);
gen.Emit(OpCodes.Ldloc_0);
gen.Emit(OpCodes.Ret);
}
19
Source : ProxyGenerator.cs
with MIT License
from AutoFixture
with MIT License
from AutoFixture
private static void BuildMethodEquals(TypeBuilder type, FieldInfo comparer)
{
var methodAttributes = MethodAttributes.Public | MethodAttributes.Virtual | MethodAttributes.HideBySig;
MethodBuilder method = type.DefineMethod("Equals", methodAttributes);
MethodInfo equals = typeof(object).GetTypeInfo().GetMethod(
"Equals",
new[] {typeof(object)}
);
method.SetReturnType(typeof(bool));
method.SetParameters(typeof(object));
ILGenerator gen = method.GetILGenerator();
gen.DeclareLocal(typeof(bool));
var label = gen.DefineLabel();
gen.Emit(OpCodes.Nop);
gen.Emit(OpCodes.Ldarg_0);
gen.Emit(OpCodes.Ldfld, comparer);
gen.Emit(OpCodes.Ldarg_1);
gen.Emit(OpCodes.Callvirt, equals);
gen.Emit(OpCodes.Stloc_0);
gen.Emit(OpCodes.Br_S, label);
gen.MarkLabel(label);
gen.Emit(OpCodes.Ldloc_0);
gen.Emit(OpCodes.Ret);
}
19
Source : SqlMapperExtensions.cs
with MIT License
from ay2015
with MIT License
from ay2015
private static void CreateProperty<T>(TypeBuilder typeBuilder, string propertyName, Type propType, MethodInfo setIsDirtyMethod, bool isIdenreplacedy)
{
FieldBuilder field = typeBuilder.DefineField("_" + propertyName, propType, FieldAttributes.Private);
PropertyBuilder propertyBuilder = typeBuilder.DefineProperty(propertyName, System.Reflection.PropertyAttributes.None, propType, new Type[1]
{
propType
});
MethodBuilder methodBuilder = typeBuilder.DefineMethod("get_" + propertyName, MethodAttributes.FamANDreplacedem | MethodAttributes.Family | MethodAttributes.Virtual | MethodAttributes.HideBySig, propType, Type.EmptyTypes);
ILGenerator iLGenerator = methodBuilder.GetILGenerator();
iLGenerator.Emit(OpCodes.Ldarg_0);
iLGenerator.Emit(OpCodes.Ldfld, field);
iLGenerator.Emit(OpCodes.Ret);
MethodBuilder methodBuilder2 = typeBuilder.DefineMethod("set_" + propertyName, MethodAttributes.FamANDreplacedem | MethodAttributes.Family | MethodAttributes.Virtual | MethodAttributes.HideBySig, null, new Type[1]
{
propType
});
ILGenerator iLGenerator2 = methodBuilder2.GetILGenerator();
iLGenerator2.Emit(OpCodes.Ldarg_0);
iLGenerator2.Emit(OpCodes.Ldarg_1);
iLGenerator2.Emit(OpCodes.Stfld, field);
iLGenerator2.Emit(OpCodes.Ldarg_0);
iLGenerator2.Emit(OpCodes.Ldc_I4_1);
iLGenerator2.Emit(OpCodes.Call, setIsDirtyMethod);
iLGenerator2.Emit(OpCodes.Ret);
if (isIdenreplacedy)
{
CustomAttributeBuilder customAttribute = new CustomAttributeBuilder(typeof(KeyAttribute).GetConstructor(new Type[0]), new object[0]);
propertyBuilder.SetCustomAttribute(customAttribute);
}
propertyBuilder.SetGetMethod(methodBuilder);
propertyBuilder.SetSetMethod(methodBuilder2);
MethodInfo method = typeof(T).GetMethod("get_" + propertyName);
MethodInfo method2 = typeof(T).GetMethod("set_" + propertyName);
typeBuilder.DefineMethodOverride(methodBuilder, method);
typeBuilder.DefineMethodOverride(methodBuilder2, method2);
}
19
Source : ReferenceHelpers.cs
with MIT License
from badamczewski
with MIT License
from badamczewski
public static Action<object, Action<IntPtr>> GetPinnedPointerInit()
{
var dyn = new DynamicMethod("GetPinnedPtr", typeof(void), new[] { typeof(object), typeof(Action<IntPtr>) }, typeof(ReferenceHelpers).Module);
var il = dyn.GetILGenerator();
il.DeclareLocal(typeof(object), true);
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Stloc_0);
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Ldloc_0);
il.Emit(OpCodes.Conv_I);
il.Emit(OpCodes.Call, typeof(Action<IntPtr>).GetMethod("Invoke"));
il.Emit(OpCodes.Ret);
return (Action<object, Action<IntPtr>>)dyn.CreateDelegate(typeof(Action<object, Action<IntPtr>>));
}
See More Examples