| public DefineGenericParameters ( ) : System.Reflection.Emit.GenericTypeParameterBuilder[] | ||
| return | System.Reflection.Emit.GenericTypeParameterBuilder[] | |
private static void MakeGenericType(Type baseType, TypeBuilder typeBuilder) {
Type[] genericArguments = baseType.GetGenericArguments();
string[] genericArgumentNames = genericArguments.Select(g => g.Name).ToArray();
var genericTypeParameterBuilder = typeBuilder.DefineGenericParameters(genericArgumentNames);
typeBuilder.MakeGenericType(genericTypeParameterBuilder);
}
/// <summary>
/// Makes the typeBuilder a generic.
/// </summary>
/// <param name="concrete">The concrete.</param>
/// <param name="typeBuilder">The type builder.</param>
public static void MakeGenericType(Type baseType, TypeBuilder typeBuilder)
{
Type[] genericArguments = baseType.GetGenericArguments();
string[] genericArgumentNames = GetArgumentNames(genericArguments);
GenericTypeParameterBuilder[] genericTypeParameterBuilder
= typeBuilder.DefineGenericParameters(genericArgumentNames);
typeBuilder.MakeGenericType(genericTypeParameterBuilder);
}
public static GenericTypeParameterBuilder[] DefineGenericArguments(
Type[] genericArguments, TypeBuilder builder,
Dictionary<String, GenericTypeParameterBuilder> name2GenericType)
{
return
DefineGenericArguments(genericArguments, name2GenericType,
delegate(String[] args) { return builder.DefineGenericParameters(args); });
}
public static GenericTypeParameterBuilder[] CopyGenericArguments(
MethodInfo methodToCopyGenericsFrom,
TypeBuilder builder,
Dictionary<String, GenericTypeParameterBuilder> name2GenericType)
{
return
CopyGenericArguments(methodToCopyGenericsFrom, name2GenericType,
delegate(String[] args) { return builder.DefineGenericParameters(args); });
}
internal static Type MakeGenericType(this Type type, TypeBuilder typeBuilder) {
GenericTypeParameterBuilder[] genericTypeParameterBuilder = null;
Type[] genericArguments = type.GetGenericArguments();
string[] genericParameters = genericArguments.Select(g => g.Name)
.ToArray();
genericTypeParameterBuilder = typeBuilder.DefineGenericParameters(genericParameters);
return typeBuilder.MakeGenericType(genericTypeParameterBuilder);
}
void SetUp (AssemblyBuilderAccess access)
{
AssemblyName assemblyName = new AssemblyName ();
assemblyName.Name = ASSEMBLY_NAME;
assembly = AppDomain.CurrentDomain.DefineDynamicAssembly (
assemblyName, access,
Path.GetTempPath ());
module = assembly.DefineDynamicModule ("module1");
tb = module.DefineType ("Bar");
GenericTypeParameterBuilder [] typeParams = tb.DefineGenericParameters ("T");
cb = tb.DefineConstructor (MethodAttributes.Public,
CallingConventions.Standard,
new Type [] { typeof (string), typeof (int) });
ILGenerator ig = cb.GetILGenerator ();
ig.Emit (OpCodes.Ret);
typeBarOfInt32 = tb.MakeGenericType (typeof (int));
ci = TypeBuilder.GetConstructor (typeBarOfInt32, cb);
}
private void CompileInGeneratingFunction()
{
InClass = utilityClass.DefineNestedType(Constants.InGeneratingFunctionClassName,
TypeAttributes.Sealed | TypeAttributes.Class | TypeAttributes.NestedPublic);
var genericParameters = declaration.TypeParameters.Any() ? InClass.DefineGenericParameters(declaration.TypeParameters) : TypeBuilder.EmptyTypes;
var greatestFixedPoint = declaration.TypeParameters.Any()
? TypeBuilder.MakeGenericType(genericParameters)
: TypeBuilder;
var fGreatestFixedPoint = FunctorTypeMapper.Map(declaration.Type, declaration.VariableName, greatestFixedPoint, genericParameters, runtimeContainer);
InClass.AddInterfaceImplementation(GreatestFixedPointFunction.MakeGenericType(new[] { fGreatestFixedPoint }.Concat(genericParameters).ToArray()));
InGeneratingFunctionConstructor = InClass.DefineConstructor(MethodAttributes.Public, CallingConventions.Standard, TypeBuilder.EmptyTypes);
var inCtorBody = InGeneratingFunctionConstructor.GetILGenerator();
inCtorBody.Emit(OpCodes.Ldarg_0);
inCtorBody.Emit(OpCodes.Call, typeof(object).GetConstructors()[0]);
inCtorBody.Emit(OpCodes.Ret);
var apply = InClass.DefineMethod(Constants.ApplyMethodName, MethodAttributes.Public | MethodAttributes.Virtual,
fGreatestFixedPoint, TypeBuilder.EmptyTypes);
var genericParameter = apply.DefineGenericParameters(Constants.ApplyMethodGenericParameterName)[0];
var fGenericParameter = FunctorTypeMapper.Map(declaration.Type, declaration.VariableName, genericParameter, genericParameters, runtimeContainer);
apply.SetParameters(genericParameter, typeof(IFunction<,>).MakeGenericType(genericParameter, fGenericParameter));
var applyBody = apply.GetILGenerator();
applyBody.Emit(OpCodes.Ldarg_2);
applyBody.Emit(OpCodes.Newobj, TypeBuilder.GetConstructor(
AnaFunction.MakeGenericType(new[] { genericParameter }.Concat(genericParameters).ToArray()),
AnaFunctionConstructor));
applyBody.Emit(OpCodes.Call, fmap.MakeGenericMethod(new Type[] { genericParameter, greatestFixedPoint }.Concat(genericParameters).ToArray()));
applyBody.Emit(OpCodes.Ldarg_2);
applyBody.Emit(OpCodes.Ldarg_1);
applyBody.Emit(OpCodes.Callvirt, TypeBuilder.GetMethod(
typeof(IFunction<,>).MakeGenericType(genericParameter, fGenericParameter),
typeof(IFunction<,>).GetMethod(Constants.CallMethodName)));
applyBody.Emit(OpCodes.Callvirt, TypeBuilder.GetMethod(
typeof(IFunction<,>).MakeGenericType(fGenericParameter, fGreatestFixedPoint),
typeof(IFunction<,>).GetMethod(Constants.CallMethodName)));
applyBody.Emit(OpCodes.Ret);
}
private static void DefineGenericArguments(TypeBuilder typeBuilder, Type baseClass)
{
if (!baseClass.IsGenericType) return;
Type[] genericArguments = baseClass.GetGenericArguments();
GenericTypeParameterBuilder[] genericTypes = typeBuilder.DefineGenericParameters(
genericArguments.Select(t => t.Name).ToArray());
for (int i = 0; i < genericArguments.Length; ++i)
{
genericTypes[i].SetGenericParameterAttributes(genericArguments[i].GenericParameterAttributes);
foreach (Type constraint in genericArguments[i].GetGenericParameterConstraints())
{
genericTypes[i].SetBaseTypeConstraint(constraint);
}
}
}
private GenericTypeParameterBuilder[] DefineGenericParameters(TypeBuilder typeBuilder, MethodBuilder methodBuilder, IEnumerable<Cci.IGenericParameter> typeParameters)
{
Debug.Assert(typeBuilder != null ^ methodBuilder != null);
var names = new List<string>(typeParameters.Select(typeParameter => typeParameter.Name)).ToArray();
var gpBuilders = (typeBuilder != null) ? typeBuilder.DefineGenericParameters(names) : methodBuilder.DefineGenericParameters(names);
int i = 0;
foreach (var typeParameter in typeParameters)
{
_genericParameterBuilders.Add(typeParameter, gpBuilders[i++]);
}
return gpBuilders;
}
private static GenericParameterMapper DefineGenericArguments(TypeBuilder typeBuilder, Type baseClass)
{
if (!baseClass.IsGenericType)
{
return GenericParameterMapper.DefaultMapper;
}
Type[] genericArguments = baseClass.GetGenericArguments();
GenericTypeParameterBuilder[] genericTypes = typeBuilder.DefineGenericParameters(
genericArguments.Select(t => t.Name).ToArray());
for (int i = 0; i < genericArguments.Length; ++i)
{
genericTypes[i].SetGenericParameterAttributes(genericArguments[i].GenericParameterAttributes);
var interfaceConstraints = new List<Type>();
foreach (Type constraint in genericArguments[i].GetGenericParameterConstraints())
{
if (constraint.IsClass)
{
genericTypes[i].SetBaseTypeConstraint(constraint);
}
else
{
interfaceConstraints.Add(constraint);
}
}
if (interfaceConstraints.Count > 0)
{
genericTypes[i].SetInterfaceConstraints(interfaceConstraints.ToArray());
}
}
return new GenericParameterMapper(genericArguments, genericTypes.Cast<Type>().ToArray());
}
private void CompileOutClass()
{
OutClass = utilityClass.DefineNestedType(Constants.OutClassName,
TypeAttributes.Sealed | TypeAttributes.Class | TypeAttributes.NestedPublic,
null, new[] { TypeBuilder });
var genericParameters = declaration.TypeParameters.Any() ? OutClass.DefineGenericParameters(declaration.TypeParameters) : TypeBuilder.EmptyTypes;
var fLeastFixedPoint = FunctorTypeMapper.Map(declaration.Type, declaration.VariableName, TypeBuilder, genericParameters, runtimeContainer);
var predField = OutClass.DefineField(Constants.OutClassPredFieldName, fLeastFixedPoint, FieldAttributes.Private);
OutClassConstructor = OutClass.DefineConstructor(MethodAttributes.Public, CallingConventions.Standard, new[] { fLeastFixedPoint });
var outCtorBody = OutClassConstructor.GetILGenerator();
outCtorBody.Emit(OpCodes.Ldarg_0);
outCtorBody.Emit(OpCodes.Call, typeof(object).GetConstructors()[0]);
outCtorBody.Emit(OpCodes.Ldarg_0);
outCtorBody.Emit(OpCodes.Ldarg_1);
outCtorBody.Emit(OpCodes.Stfld, predField);
outCtorBody.Emit(OpCodes.Ret);
var cata = OutClass.DefineMethod(Constants.CataMethodName, MethodAttributes.Public | MethodAttributes.Virtual);
var genericParameter = cata.DefineGenericParameters(Constants.CataMethodGenericParameterName)[0];
var fGenericParameter = FunctorTypeMapper.Map(declaration.Type, declaration.VariableName, genericParameter, genericParameters, runtimeContainer);
cata.SetParameters(typeof(IFunction<,>).MakeGenericType(fGenericParameter, genericParameter));
cata.SetReturnType(genericParameter);
var cataBody = cata.GetILGenerator();
cataBody.Emit(OpCodes.Ldarg_1);
cataBody.Emit(OpCodes.Ldarg_1);
cataBody.Emit(OpCodes.Newobj, TypeBuilder.GetConstructor(CataFunction.MakeGenericType(new[] { genericParameter }.Concat(genericParameters).ToArray()),
CataFunctionConstructor));
cataBody.Emit(OpCodes.Call, fmap.MakeGenericMethod(new Type[] { TypeBuilder, genericParameter }.Concat(genericParameters).ToArray()));
cataBody.Emit(OpCodes.Ldarg_0);
cataBody.Emit(OpCodes.Ldfld, predField);
cataBody.Emit(OpCodes.Callvirt, TypeBuilder.GetMethod(
typeof(IFunction<,>).MakeGenericType(fLeastFixedPoint, fGenericParameter),
typeof(IFunction<,>).GetMethod(Constants.CallMethodName)));
cataBody.Emit(OpCodes.Callvirt, TypeBuilder.GetMethod(
typeof(IFunction<,>).MakeGenericType(fGenericParameter, genericParameter),
typeof(IFunction<,>).GetMethod(Constants.CallMethodName)));
cataBody.Emit(OpCodes.Ret);
}
protected override void PreBuild()
{
if(Info != null)
{
return;
}
var cont = CurrentContainer;
Builder = cont.CreateType(Name, Attributes);
Info = Builder;
if (Generics.Count > 0)
{
var gb = Builder.DefineGenericParameters(Generics.ToNames());
Generics.RegisterBuilders(gb);
}
if (BaseType != null)
{
Builder.SetParent(BaseType.GainType()); //todo ジェネリクスに対応したTypeを生成する。
}
Builder.AddImplements(Implements);
}
private void AllocateGenericParametersIfNecessary(ITypeDefinition typeDefinition, TypeBuilder typeBuilder) {
if (!typeDefinition.IsGeneric) return;
//We don't need these to be allocated in this pass, but it is more convenient to do it here.
var names = new string[typeDefinition.GenericParameterCount];
foreach (var genericParameter in typeDefinition.GenericParameters)
names[genericParameter.Index] = genericParameter.Name.Value;
var genericParameterBuilders = typeBuilder.DefineGenericParameters(names);
foreach (var genericParameter in typeDefinition.GenericParameters) {
var genericParameterBuilder = genericParameterBuilders[genericParameter.Index];
this.loader.builderMap.Add(genericParameter, genericParameterBuilder);
this.loader.mapper.DefineMapping(genericParameter, genericParameterBuilder);
}
}
public void Compile()
{
GreatestFixedPointFunction = module.DefineType(moduleName + '.' + Constants.TypesNamespace + '.' + name + Constants.FunctionSuffix,
TypeAttributes.Public | TypeAttributes.Interface | TypeAttributes.Abstract);
var functionClassGenericParameters = GreatestFixedPointFunction.DefineGenericParameters(new[] { Constants.GFixFunctionClassGenericParameterName }.Concat(declaration.TypeParameters).ToArray());
GreatestFixedPointFunctionApplyMethod = GreatestFixedPointFunction.DefineMethod(Constants.ApplyMethodName,
MethodAttributes.Public | MethodAttributes.Abstract | MethodAttributes.Virtual);
var underlyingType = GreatestFixedPointFunctionApplyMethod.DefineGenericParameters(Constants.ApplyMethodGenericParameterName)[0];
var functorClass = FunctorTypeMapper.Map(declaration.Type, declaration.VariableName, underlyingType,
functionClassGenericParameters.Skip(1).ToArray(), runtimeContainer);
GreatestFixedPointFunctionApplyMethod.SetParameters(underlyingType, typeof(IFunction<,>).MakeGenericType(underlyingType, functorClass));
GreatestFixedPointFunctionApplyMethod.SetReturnType(functionClassGenericParameters[0]);
TypeBuilder = module.DefineType(moduleName + '.' + Constants.TypesNamespace + '.' + name,
TypeAttributes.Public | TypeAttributes.Interface | TypeAttributes.Abstract);
var typeGenericParameters = declaration.TypeParameters.Any() ? TypeBuilder.DefineGenericParameters(declaration.TypeParameters) : TypeBuilder.EmptyTypes;
GreatestFixedPointApplyMethod = TypeBuilder.DefineMethod(Constants.ApplyMethodName,
MethodAttributes.Public | MethodAttributes.Abstract | MethodAttributes.Virtual);
var resultTypeGfix = GreatestFixedPointApplyMethod.DefineGenericParameters(Constants.GFixFunctionClassGenericParameterName)[0];
GreatestFixedPointApplyMethod.SetParameters(GreatestFixedPointFunction.MakeGenericType(new[] { resultTypeGfix }.Concat(typeGenericParameters).ToArray()));
GreatestFixedPointApplyMethod.SetReturnType(resultTypeGfix);
CompileAnaClass();
CompileAna();
CompileAnaFunction();
CompileAnaFunction1();
CompileIn();
CompileInFunction();
CompileOut();
CompileOutFunction();
TypeBuilder.SetCustomAttribute(new CustomAttributeBuilder(
typeof(InfiniteAttribute).GetConstructors()[0],
new object[]
{
declaration.ConstructorFunctionName,
declaration.DestructorFunctionName,
declaration.AnaFunctionName,
InFunction
}));
}
private void CompileCataFunction()
{
CataFunction = utilityClass.DefineNestedType(Constants.CataFunctionClassName,
TypeAttributes.Sealed | TypeAttributes.Class | TypeAttributes.NestedPublic,
null, TypeBuilder.EmptyTypes);
var genericParameters = CataFunction.DefineGenericParameters(new[] { Constants.CataFunctionClassGenericParameterName }.Concat(declaration.TypeParameters).ToArray());
var inputParameter = declaration.TypeParameters.Any() ? TypeBuilder.MakeGenericType(genericParameters.Skip(1).ToArray()) : TypeBuilder;
CataFunction.AddInterfaceImplementation(typeof(IFunction<,>).MakeGenericType(inputParameter, genericParameters[0]));
var fSeedType = FunctorTypeMapper.Map(declaration.Type, declaration.VariableName, genericParameters[0], genericParameters, runtimeContainer);
var algebra = typeof(IFunction<,>).MakeGenericType(fSeedType, genericParameters[0]);
var seedField = CataFunction.DefineField(Constants.CataFunctionClassSeedFieldName, algebra, FieldAttributes.Private);
CataFunctionConstructor = CataFunction.DefineConstructor(MethodAttributes.Public,
CallingConventions.Standard, new[] { algebra });
var cataCtorBody = CataFunctionConstructor.GetILGenerator();
cataCtorBody.Emit(OpCodes.Ldarg_0);
cataCtorBody.Emit(OpCodes.Call, typeof(object).GetConstructors()[0]);
cataCtorBody.Emit(OpCodes.Ldarg_0);
cataCtorBody.Emit(OpCodes.Ldarg_1);
cataCtorBody.Emit(OpCodes.Stfld, seedField);
cataCtorBody.Emit(OpCodes.Ret);
var call = CataFunction.DefineMethod(Constants.CallMethodName, MethodAttributes.Public | MethodAttributes.Virtual,
genericParameters[0], new Type[] { inputParameter });
var callBody = call.GetILGenerator();
callBody.Emit(OpCodes.Ldarg_1);
callBody.Emit(OpCodes.Ldarg_0);
callBody.Emit(OpCodes.Ldfld, seedField);
callBody.Emit(OpCodes.Callvirt, genericParameters.Skip(1).Any()
? TypeBuilder.GetMethod(
TypeBuilder.MakeGenericType(genericParameters.Skip(1).ToArray()),
Cata).MakeGenericMethod(genericParameters[0])
: Cata.MakeGenericMethod(genericParameters[0]));
callBody.Emit(OpCodes.Ret);
}
/// <summary>
/// Defines the generic parameters of an internal generic type.
/// </summary>
void DefineGenericParameters(TypeBuilder builder, GenericParameterDeclaration[] parameters)
{
string[] names = Array.ConvertAll<GenericParameterDeclaration, string>(
parameters,
delegate(GenericParameterDeclaration gpd) { return gpd.Name; });
GenericTypeParameterBuilder[] builders = builder.DefineGenericParameters(names);
DefineGenericParameters(builders, parameters);
}
private void CompileAnaFunction1()
{
AnaFunction1 = utilityClass.DefineNestedType(Constants.AnaFunction1ClassName,
TypeAttributes.Sealed | TypeAttributes.Class | TypeAttributes.NestedPublic,
null, TypeBuilder.EmptyTypes);
var anaClassGenericParameters = AnaFunction1.DefineGenericParameters(new[] { Constants.AnaFunction1ClassGenericParameterName }.Concat(declaration.TypeParameters).ToArray());
var resultType = declaration.TypeParameters.Any()
? TypeBuilder.MakeGenericType(anaClassGenericParameters.Skip(1).ToArray())
: TypeBuilder;
var fAnaClassGenericParameter = FunctorTypeMapper.Map(declaration.Type, declaration.VariableName, anaClassGenericParameters[0], anaClassGenericParameters.Skip(1).ToArray(), runtimeContainer);
var coalgebraType = typeof(IFunction<,>).MakeGenericType(anaClassGenericParameters[0], fAnaClassGenericParameter);
var terminalMorphismType = typeof(IFunction<,>).MakeGenericType(anaClassGenericParameters[0], resultType);
AnaFunction1.AddInterfaceImplementation(typeof(IFunction<,>).MakeGenericType(coalgebraType,
terminalMorphismType));
AnaFunction1Constructor = AnaFunction1.DefineConstructor(MethodAttributes.Public,
CallingConventions.Standard, TypeBuilder.EmptyTypes);
var anaCtorBody = AnaFunction1Constructor.GetILGenerator();
anaCtorBody.Emit(OpCodes.Ldarg_0);
anaCtorBody.Emit(OpCodes.Call, typeof(object).GetConstructors()[0]);
anaCtorBody.Emit(OpCodes.Ret);
var call = AnaFunction1.DefineMethod(Constants.CallMethodName, MethodAttributes.Public | MethodAttributes.Virtual,
terminalMorphismType, new Type[] { coalgebraType });
var callBody = call.GetILGenerator();
callBody.Emit(OpCodes.Ldarg_1);
callBody.Emit(OpCodes.Newobj, TypeBuilder.GetConstructor(
AnaFunction.MakeGenericType(anaClassGenericParameters),
AnaFunctionConstructor));
callBody.Emit(OpCodes.Ret);
}
private void CompileAnaFunction()
{
AnaFunction = utilityClass.DefineNestedType(Constants.AnaFunctionClassName,
TypeAttributes.Sealed | TypeAttributes.Class | TypeAttributes.NestedPublic,
null, TypeBuilder.EmptyTypes);
var anaClassGenericParameters = AnaFunction.DefineGenericParameters(new[] { Constants.AnaFunctionClassGenericParameterName }.Concat(declaration.TypeParameters).ToArray());
var resultType = declaration.TypeParameters.Any()
? TypeBuilder.MakeGenericType(anaClassGenericParameters.Skip(1).ToArray())
: TypeBuilder;
AnaFunction.AddInterfaceImplementation(typeof(IFunction<,>).MakeGenericType(anaClassGenericParameters[0],
resultType));
var seedType = typeof(IFunction<,>).MakeGenericType(anaClassGenericParameters[0],
FunctorTypeMapper.Map(declaration.Type, declaration.VariableName, anaClassGenericParameters[0], anaClassGenericParameters.Skip(1).ToArray(), runtimeContainer));
var seedField = AnaFunction.DefineField(Constants.AnaFunctionClassSeedFieldName, seedType, FieldAttributes.Private);
AnaFunctionConstructor = AnaFunction.DefineConstructor(MethodAttributes.Public, CallingConventions.Standard, new[] { seedType });
var anaCtorBody = AnaFunctionConstructor.GetILGenerator();
anaCtorBody.Emit(OpCodes.Ldarg_0);
anaCtorBody.Emit(OpCodes.Call, typeof(object).GetConstructors()[0]);
anaCtorBody.Emit(OpCodes.Ldarg_0);
anaCtorBody.Emit(OpCodes.Ldarg_1);
anaCtorBody.Emit(OpCodes.Stfld, seedField);
anaCtorBody.Emit(OpCodes.Ret);
var call = AnaFunction.DefineMethod(Constants.CallMethodName, MethodAttributes.Public | MethodAttributes.Virtual,
resultType, new[] { anaClassGenericParameters[0] });
var callBody = call.GetILGenerator();
callBody.Emit(OpCodes.Ldarg_1);
callBody.Emit(OpCodes.Ldarg_0);
callBody.Emit(OpCodes.Ldfld, seedField);
callBody.Emit(OpCodes.Call, Ana.MakeGenericMethod(anaClassGenericParameters));
callBody.Emit(OpCodes.Ret);
}
private void CompileAnaClass()
{
AnaClass = utilityClass.DefineNestedType(Constants.AnaClassName,
TypeAttributes.Sealed | TypeAttributes.Class | TypeAttributes.NestedPublic,
null, TypeBuilder.EmptyTypes);
var anaClassGenericParameters = AnaClass.DefineGenericParameters(new[] { Constants.AnaClassGenericParameterName }.Concat(declaration.TypeParameters).ToArray());
if (declaration.TypeParameters.Any())
{
AnaClass.AddInterfaceImplementation(TypeBuilder.MakeGenericType(anaClassGenericParameters.Skip(1).ToArray()));
}
else
{
AnaClass.AddInterfaceImplementation(TypeBuilder);
}
var anaClassGeneratorType = typeof(IFunction<,>).MakeGenericType(anaClassGenericParameters[0],
FunctorTypeMapper.Map(declaration.Type, declaration.VariableName, anaClassGenericParameters[0], anaClassGenericParameters.Skip(1).ToArray(), runtimeContainer));
var seedField = AnaClass.DefineField(Constants.AnaClassSeedFieldName, anaClassGenericParameters[0], FieldAttributes.Private);
var generatorField = AnaClass.DefineField(Constants.AnaClassGeneratorFieldName, anaClassGeneratorType, FieldAttributes.Private);
AnaClassConstructor = AnaClass.DefineConstructor(MethodAttributes.Public, CallingConventions.Standard, new[] { anaClassGenericParameters[0], anaClassGeneratorType });
var ctorBody = AnaClassConstructor.GetILGenerator();
ctorBody.Emit(OpCodes.Ldarg_0);
ctorBody.Emit(OpCodes.Call, typeof(object).GetConstructors()[0]);
ctorBody.Emit(OpCodes.Ldarg_0);
ctorBody.Emit(OpCodes.Ldarg_1);
ctorBody.Emit(OpCodes.Stfld, seedField);
ctorBody.Emit(OpCodes.Ldarg_0);
ctorBody.Emit(OpCodes.Ldarg_2);
ctorBody.Emit(OpCodes.Stfld, generatorField);
ctorBody.Emit(OpCodes.Ret);
var apply = AnaClass.DefineMethod(Constants.ApplyMethodName, MethodAttributes.Public | MethodAttributes.Virtual);
var resultType = apply.DefineGenericParameters(Constants.GFixFunctionClassGenericParameterName)[0];
var applyFunctionGenericParameters = new[] { resultType }.Concat(anaClassGenericParameters.Skip(1)).ToArray();
apply.SetParameters(GreatestFixedPointFunction.MakeGenericType(applyFunctionGenericParameters));
apply.SetReturnType(resultType);
var applyMethodGenericClass = TypeBuilder.GetMethod(
GreatestFixedPointFunction.MakeGenericType(applyFunctionGenericParameters),
GreatestFixedPointFunctionApplyMethod);
var applyMethodGenericMethod = applyMethodGenericClass.MakeGenericMethod(anaClassGenericParameters[0]);
var applyBody = apply.GetILGenerator();
applyBody.Emit(OpCodes.Ldarg_1);
applyBody.Emit(OpCodes.Ldarg_0);
applyBody.Emit(OpCodes.Ldfld, seedField);
applyBody.Emit(OpCodes.Ldarg_0);
applyBody.Emit(OpCodes.Ldfld, generatorField);
applyBody.Emit(OpCodes.Callvirt, applyMethodGenericMethod);
applyBody.Emit(OpCodes.Ret);
}
private static GenericTypeParameterBuilder[] BuildGenericParameters(DynamicTypeInfo info, TypeBuilder typBuilder) {
// generates the names T0, T1, T2 ...
String[] parameterNames = Enumerable.Range(0, info.PropertyNames.Count).Select(i => "T" + i.ToString()).ToArray();
var parameterBuilders = typBuilder.DefineGenericParameters(parameterNames);
return parameterBuilders;
}
private void CompileOutFunction()
{
OutFunction = utilityClass.DefineNestedType(Constants.OutFunctionClassName,
TypeAttributes.Sealed | TypeAttributes.Class | TypeAttributes.NestedPublic);
var genericParameters = declaration.TypeParameters.Any() ? OutFunction.DefineGenericParameters(declaration.TypeParameters) : TypeBuilder.EmptyTypes;
var fGreatestFixedPoint = FunctorTypeMapper.Map(declaration.Type, declaration.VariableName, TypeBuilder, genericParameters, runtimeContainer);
OutFunction.AddInterfaceImplementation(typeof(IFunction<,>).MakeGenericType(fGreatestFixedPoint, TypeBuilder));
OutFunctionConstructor = OutFunction.DefineConstructor(MethodAttributes.Public, CallingConventions.Standard, TypeBuilder.EmptyTypes);
var outCtorBody = OutFunctionConstructor.GetILGenerator();
outCtorBody.Emit(OpCodes.Ldarg_0);
outCtorBody.Emit(OpCodes.Call, typeof(object).GetConstructors()[0]);
outCtorBody.Emit(OpCodes.Ret);
var call = OutFunction.DefineMethod(Constants.CallMethodName, MethodAttributes.Public | MethodAttributes.Virtual,
TypeBuilder, new Type[] { fGreatestFixedPoint });
var callBody = call.GetILGenerator();
callBody.Emit(OpCodes.Ldarg_1);
callBody.Emit(OpCodes.Call, declaration.TypeParameters.Any()
? Out.MakeGenericMethod(genericParameters)
: Out);
callBody.Emit(OpCodes.Ret);
}
