private static LNode EncodeTypeAndName(ITypeMember member, EncoderState state)
{
return(state.Factory.Call(
CodeSymbols.Dot,
state.Encode(member.ParentType),
state.Encode(member.Name)));
}
private static IReadOnlyList <LNode> EncodeCall(CallPrototype value, EncoderState state)
{
return(new LNode[]
{
state.Encode(value.Callee),
state.Encode(value.Lookup)
});
}
/// <summary>
/// Encodes a field as an LNode.
/// </summary>
/// <param name="value">The field to encode.</param>
/// <param name="state">The encoder to use.</param>
/// <returns>An LNode that represents the field.</returns>
public static LNode Encode(IField value, EncoderState state)
{
return(state.Factory.Call(
CodeSymbols.Var,
state.Encode(value.Name),
state.Encode(value.IsStatic),
state.Encode(value.FieldType))
.WithAttrs(
new VList <LNode>(
state.Encode(value.Attributes))));
}
/// <inheritdoc/>
public override LNode Encode(ITypeMember value, EncoderState state)
{
if (value is IField)
{
return(IrField.Encode((IField)value, state));
}
else
{
return(IrMethod.Encode((IMethod)value, state));
}
}
/// <summary>
/// Encodes an assembly as an LNode.
/// </summary>
/// <param name="value">The assembly to encode.</param>
/// <param name="state">The encoder to use.</param>
/// <returns>An LNode that represents the assembly.</returns>
public static LNode Encode(IAssembly value, EncoderState state)
{
return(state.Factory.Call(
CodeSymbols.Assembly,
state.Encode(value.FullName),
state.Factory.Call(
CodeSymbols.Braces,
value.Types.EagerSelect(state.EncodeDefinition)))
.WithAttrs(
new VList <LNode>(
state.Encode(value.Attributes))));
}
public override LNode Encode(IType value, EncoderState state)
{
if (typeParameters.Contains(value))
{
return(state.Factory.Call(
CodeSymbols.PreBangBang,
state.Encode(value.Name)));
}
else
{
return(typeCodec.Encode(value, state));
}
}
/// <summary>
/// Encodes a value.
/// </summary>
/// <param name="value">The value to encode.</param>
/// <param name="state">The state of the encoder.</param>
/// <returns>The encoded value.</returns>
public override LNode Encode(TObj value, EncoderState state)
{
var valType = value.GetType();
Func <TObj, EncoderState, LNode> encoder;
try
{
specializedEncoderLock.EnterReadLock();
if (!specializedEncoders.TryGetValue(valType, out encoder))
{
encoder = null;
}
}
finally
{
specializedEncoderLock.ExitReadLock();
}
if (encoder == null)
{
try
{
specializedEncoderLock.EnterWriteLock();
Type encoderKey;
if (encoders.Keys.TryGetBestElement(
(t1, t2) => PickMostDerivedParent(t1, t2, valType),
out encoderKey) &&
encoderKey != null &&
encoderKey.IsAssignableFrom(valType))
{
encoder = encoders[encoderKey];
specializedEncoders[valType] = encoder;
}
}
finally
{
specializedEncoderLock.ExitWriteLock();
}
}
return(encoder(value, state));
}
/// <summary>
/// Encodes a method as an LNode.
/// </summary>
/// <param name="value">The method to encode.</param>
/// <param name="state">The encoder to use.</param>
/// <returns>An LNode that represents the method.</returns>
public static LNode Encode(IMethod value, EncoderState state)
{
var typeParamsNode = state.Factory.Call(
CodeSymbols.AltList,
value.GenericParameters
.Select(state.EncodeDefinition)
.ToList());
var parameterNodes = state.Factory.Call(
CodeSymbols.AltList,
value.Parameters.EagerSelect(state.EncodeDefinition));
var baseMethodNodes = state.Factory.Call(
CodeSymbols.AltList,
value.BaseMethods.EagerSelect(state.Encode));
var argNodes = new List <LNode>()
{
state.Encode(value.Name),
state.Encode(value.IsStatic),
typeParamsNode,
state.EncodeDefinition(value.ReturnParameter),
parameterNodes,
baseMethodNodes
};
if (value is IBodyMethod)
{
var body = ((IBodyMethod)value).Body;
if (body != null)
{
argNodes.Add(state.Encode(body.Implementation));
}
}
return(state.Factory.Call(
value.IsConstructor ? CodeSymbols.Constructor : CodeSymbols.Fn,
argNodes)
.WithAttrs(
new VList <LNode>(
state.Encode(value.Attributes))));
}
/// <inheritdoc/>
public override LNode Encode(IType value, EncoderState state)
{
if (value is PointerType)
{
var pointerType = (PointerType)value;
var elemNode = state.Encode(pointerType.ElementType);
var kindNode = EncodePointerKind(pointerType.Kind, state);
return(state.Factory.Call(pointerSymbol, elemNode, kindNode));
}
else if (value is DirectTypeSpecialization)
{
var genericType = (DirectTypeSpecialization)value;
var argNodes = new IType[] { genericType.Declaration }
.Concat <IType>(genericType.GenericArguments)
.Select <IType, LNode>(state.Encode);
return(state.Factory.Call(CodeSymbols.Of, argNodes));
}
else if (value is IGenericParameter)
{
return(state.Factory.Call(
genericParameterSymbol,
state.Encode(((IGenericParameter)value).ParentMember),
state.Encode(value.Name)));
}
var parent = value.Parent;
if (parent.IsType)
{
var parentNode = state.Encode(parent.Type);
var nameNode = state.Encode(value.Name);
return(state.Factory.Call(CodeSymbols.Dot, parentNode, nameNode));
}
else
{
return(state.Encode(value.FullName));
}
}
/// <summary>
/// Encodes a type definition as an LNode.
/// </summary>
/// <param name="value">The type definition to encode.</param>
/// <param name="state">The encoder state.</param>
/// <returns>An LNode that represents the type definition.</returns>
public static LNode Encode(IType value, EncoderState state)
{
var nameNode = state.Encode(
value.Parent.IsType || value.Parent.IsMethod
? value.Name.Qualify()
: value.FullName);
var typeParamsNode = state.Factory.Call(
CodeSymbols.AltList,
value.GenericParameters
.Select(state.EncodeDefinition)
.ToList());
var baseTypesNode = state.Factory.Call(
CodeSymbols.AltList,
value.BaseTypes.EagerSelect(state.Encode));
var membersNode = state.Factory.Call(
CodeSymbols.Braces,
value.NestedTypes
.Select(state.EncodeDefinition)
.Concat(value.Fields.Select(state.EncodeDefinition))
.Concat(value.Methods.Select(state.EncodeDefinition))
.Concat(value.Properties.Select(state.EncodeDefinition))
.ToArray());
return(state.Factory.Call(
value is IGenericParameter
? TypeParameterDefinitionSymbol
: TypeDefinitionSymbol,
nameNode,
typeParamsNode,
baseTypesNode,
membersNode)
.WithAttrs(
new VList <LNode>(
state.Encode(value.Attributes))));
}
private static IReadOnlyList <LNode> EncodeStore(StorePrototype value, EncoderState state)
{
if (!value.Alignment.IsNaturallyAligned)
{
return(new LNode[]
{
state.Encode(value.ResultType),
state.Encode(value.IsVolatile),
state.Encode(value.Alignment)
});
}
else if (value.IsVolatile)
{
return(new LNode[]
{
state.Encode(value.ResultType),
state.Encode(value.IsVolatile)
});
}
else
{
return(new LNode[] { state.Encode(value.ResultType) });
}
}
private static IReadOnlyList <LNode> EncodeConstrainedCall(ConstrainedCallPrototype value, EncoderState state)
{
return(new LNode[]
{
state.Encode(value.Callee)
});
}
private static IReadOnlyList <LNode> EncodeNewObject(NewObjectPrototype value, EncoderState state)
{
return(new LNode[]
{
state.Encode(value.Constructor)
});
}
private static IReadOnlyList <LNode> EncodeReinterpretCast(ReinterpretCastPrototype value, EncoderState state)
{
return(new LNode[] { state.Encode(value.TargetType) });
}
private static IReadOnlyList <LNode> EncodeAllocaArray(AllocaArrayPrototype value, EncoderState state)
{
return(new LNode[] { state.Encode(value.ResultType) });
}
private static IReadOnlyList <LNode> EncodeNewDelegate(NewDelegatePrototype value, EncoderState state)
{
return(new LNode[]
{
state.Encode(value.ResultType),
state.Encode(value.Callee),
state.Encode(value.HasThisArgument),
state.Encode(value.Lookup)
});
}
private static IReadOnlyList <LNode> EncodeIndirectCall(IndirectCallPrototype value, EncoderState state)
{
var paramTypeNodes = new List <LNode>();
foreach (var paramType in value.ParameterTypes)
{
paramTypeNodes.Add(state.Encode(paramType));
}
return(new LNode[]
{
state.Encode(value.ResultType),
state.Factory.List(paramTypeNodes)
});
}
private static IReadOnlyList <LNode> EncodeIntrinsic(IntrinsicPrototype value, EncoderState state)
{
// TODO: encode exception specifications.
var paramTypeNodes = new List <LNode>();
foreach (var paramType in value.ParameterTypes)
{
paramTypeNodes.Add(state.Encode(paramType));
}
return(new LNode[]
{
state.Factory.Id(value.Name),
state.Encode(value.ResultType),
state.Factory.List(paramTypeNodes)
});
}
/// <inheritdoc/>
public override LNode Encode(IType value, EncoderState state)
{
return(IrType.Encode(value, state));
}
private static IReadOnlyList <LNode> EncodeGetStaticFieldPointer(GetStaticFieldPointerPrototype value, EncoderState state)
{
return(new LNode[] { state.Encode(value.Field) });
}
/// <summary> /// Encodes a value. /// </summary> /// <param name="value">The value to encode.</param> /// <param name="state">The state of the encoder.</param> /// <returns>The encoded value.</returns> public abstract TEnc Encode(TObj value, EncoderState state);
/// <summary>
/// Encodes a constant value.
/// </summary>
/// <param name="value">The value to encode.</param>
/// <param name="state">The encoder state to use.</param>
/// <returns>An encoded constant value.</returns>
public override LNode Encode(Constant value, EncoderState state)
{
if (value is NullConstant)
{
return(state.Factory.Null);
}
else if (value is DefaultConstant)
{
return(state.Factory.Id(CodeSymbols.Default));
}
else if (value is StringConstant)
{
return(state.Factory.Literal(((StringConstant)value).Value));
}
else if (value is IntegerConstant)
{
var integerConst = (IntegerConstant)value;
// Try to encode integer types supported natively by
// Loyc as integer literals instead of custom literals.
if (integerConst.Spec.Equals(IntegerSpec.UInt1))
{
return(state.Factory.Literal(((IntegerConstant)value).Value != 0));
}
else if (integerConst.Spec.Equals(IntegerSpec.UInt32))
{
return(state.Factory.Literal(integerConst.ToUInt32()));
}
else if (integerConst.Spec.Equals(IntegerSpec.UInt64))
{
return(state.Factory.Literal(integerConst.ToUInt64()));
}
else if (integerConst.Spec.Equals(IntegerSpec.Int32))
{
return(state.Factory.Literal(integerConst.ToInt32()));
}
else if (integerConst.Spec.Equals(IntegerSpec.Int64))
{
return(state.Factory.Literal(integerConst.ToInt64()));
}
else
{
// Encode other integer constants as custom literals.
return(state.Factory.Literal(
new CustomLiteral(
integerConst.Value.ToString(),
GSymbol.Get(integerConst.Spec.ToString()))));
}
}
else if (value is Float32Constant)
{
return(state.Factory.Literal(((Float32Constant)value).Value));
}
else if (value is Float64Constant)
{
return(state.Factory.Literal(((Float64Constant)value).Value));
}
else if (value is TypeTokenConstant)
{
return(state.Factory.Call(CodeSymbols.Typeof, state.Encode(((TypeTokenConstant)value).Type)));
}
else if (value is FieldTokenConstant)
{
return(state.Factory.Call(fieldofSymbol, state.Encode(((FieldTokenConstant)value).Field)));
}
else if (value is MethodTokenConstant)
{
return(state.Factory.Call(methodofSymbol, state.Encode(((MethodTokenConstant)value).Method)));
}
throw new NotSupportedException(
"Cannot encode unknown kind of literal '" + value.ToString() + "'.");
}
private static IReadOnlyList <LNode> EncodeBox(BoxPrototype value, EncoderState state)
{
return(new LNode[] { state.Encode(value.ElementType) });
}
private static IReadOnlyList <LNode> EncodeStoreField(StoreFieldPrototype value, EncoderState state)
{
return(new LNode[] { state.Encode(value.Field) });
}
private LNode EncodePointerKind(PointerKind kind, EncoderState state)
{
return(state.Factory.Id(pointerKindEncoding[kind]));
}
private static IReadOnlyList <LNode> EncodeSizeOf(SizeOfPrototype value, EncoderState state)
{
return(new LNode[] { state.Encode(value.MeasuredType), state.Encode(value.ResultType) });
}
private static IReadOnlyList <LNode> EncodeStore(StorePrototype value, EncoderState state)
{
return(new LNode[] { state.Encode(value.ResultType) });
}
private static IReadOnlyList <LNode> EncodeConstant(ConstantPrototype value, EncoderState state)
{
return(new LNode[] { state.Encode(value.Value), state.Encode(value.ResultType) });
}
/// <inheritdoc/>
public override LNode Encode(ITypeMember value, EncoderState state)
{
if (value is IAccessor)
{
var acc = (IAccessor)value;
return(state.Factory.Call(
accessorSymbol,
state.Encode(acc.ParentProperty),
state.Factory.Id(accessorKindEncodings[acc.Kind])));
}
else if (value is IField)
{
return(EncodeTypeAndName(value, state));
}
else if (value is IProperty)
{
var property = (IProperty)value;
return(state.Factory.Call(
CodeSymbols.IndexBracks,
new[]
{
EncodeTypeAndName(property, state)
}.Concat(
property.IndexerParameters.EagerSelect(
p => state.Encode(p.Type)))));
}
else if (value is DirectMethodSpecialization)
{
var spec = (DirectMethodSpecialization)value;
return(state.Factory.Call(
CodeSymbols.Of,
new[]
{
state.Encode(spec.Declaration)
}.Concat(
spec.GenericArguments.EagerSelect(state.Encode))));
}
else if (value is IMethod)
{
var method = (IMethod)value;
// Update the type codec so it can encode generic parameter
// references.
var innerState = method.GenericParameters.Count > 0
? state.WithCodec(
state.Codec.WithTypes(
new GenericMethodTypeEncoder(
state.Codec.Types,
method.GenericParameters)))
: state;
return(state.Factory.Call(
CodeSymbols.Lambda,
state.Factory.Call(
EncodeTypeAndName(method, state),
method.Parameters.EagerSelect(
p => innerState.Encode(p.Type))),
innerState.Encode(method.ReturnParameter.Type)));
}
else
{
throw new NotSupportedException(
"Unknown kind of type member '" + value + "'.");
}
}
