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Copy pathMemberIdentifier.cs
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458 lines (371 loc) · 15.2 KB
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using JSIL.Ast;
using Mono.Cecil;
namespace JSIL.Internal {
public struct MemberIdentifier {
public class Comparer : IEqualityComparer<MemberIdentifier> {
public readonly ITypeInfoSource TypeInfo;
public Comparer (ITypeInfoSource typeInfo) {
TypeInfo = typeInfo;
}
public bool Equals (MemberIdentifier x, MemberIdentifier y) {
/*
if (x == null)
return x == y;
*/
return x.Equals(y, TypeInfo);
}
public int GetHashCode (MemberIdentifier obj) {
return obj.GetHashCode();
}
}
public enum MemberType : byte {
Field = 0,
Method = 1,
Property = 2,
Event = 3,
}
public readonly bool IsStatic;
public readonly MemberType Type;
public readonly string Name;
public readonly TypeReference ReturnType;
public readonly TypeReference[] ParameterTypes;
public readonly int GenericArgumentCount;
private readonly int HashCode;
public static readonly TypeReference[] AnyParameterTypes = { };
public static MemberIdentifier New (ITypeInfoSource ti, MemberReference mr) {
MethodReference method;
PropertyReference property;
EventReference evt;
FieldReference field;
if ((method = mr as MethodReference) != null)
return new MemberIdentifier(ti, method);
else if ((field = mr as FieldReference) != null)
return new MemberIdentifier(ti, field);
else if ((property = mr as PropertyReference) != null)
return new MemberIdentifier(ti, property);
else if ((evt = mr as EventReference) != null)
return new MemberIdentifier(ti, evt);
else
throw new NotImplementedException(String.Format(
"Unsupported member reference type: {0}",
mr
));
}
private MemberIdentifier (
bool isStatic,
MemberType type,
string name,
TypeReference returnType,
TypeReference[] parameterTypes,
int genericArgumentCount
) {
IsStatic = isStatic;
Type = type;
Name = name;
ReturnType = returnType;
ParameterTypes = parameterTypes;
GenericArgumentCount = genericArgumentCount;
HashCode = Type.GetHashCode() ^ Name.GetHashCode();
}
public MemberIdentifier (ITypeInfoSource ti, MethodReference mr, string newName = null) {
IsStatic = !mr.HasThis;
Type = MemberType.Method;
Name = newName ?? mr.Name;
ReturnType = mr.ReturnType;
ParameterTypes = GetParameterTypes(mr.Parameters);
if (mr is GenericInstanceMethod)
GenericArgumentCount = ((GenericInstanceMethod)mr).GenericArguments.Count;
else if (mr.HasGenericParameters)
GenericArgumentCount = mr.GenericParameters.Count;
else
GenericArgumentCount = 0;
ti.CacheProxyNames(mr);
HashCode = Type.GetHashCode() ^ Name.GetHashCode();
}
public MemberIdentifier (ITypeInfoSource ti, PropertyReference pr) {
Type = MemberType.Property;
Name = pr.Name;
ReturnType = pr.PropertyType;
GenericArgumentCount = 0;
ParameterTypes = null;
ti.CacheProxyNames(pr);
var pd = pr.Resolve();
if (pd != null) {
IsStatic = !pd.HasThis;
if (pd.GetMethod != null) {
ParameterTypes = GetParameterTypes(pd.GetMethod.Parameters);
} else if (pd.SetMethod != null) {
ParameterTypes = GetParameterTypes(pd.SetMethod.Parameters)
.Take(pd.SetMethod.Parameters.Count - 1).ToArray();
}
} else {
// FIXME
IsStatic = false;
}
HashCode = Type.GetHashCode() ^ Name.GetHashCode();
}
public MemberIdentifier (ITypeInfoSource ti, FieldReference fr) {
Type = MemberType.Field;
Name = fr.Name;
ReturnType = fr.FieldType;
GenericArgumentCount = 0;
ParameterTypes = null;
ti.CacheProxyNames(fr);
var resolved = fr.Resolve();
if (resolved != null) {
IsStatic = resolved.IsStatic;
} else {
// FIXME
IsStatic = false;
}
HashCode = Type.GetHashCode() ^ Name.GetHashCode();
}
public MemberIdentifier (ITypeInfoSource ti, EventReference er) {
Type = MemberType.Event;
Name = er.Name;
ReturnType = er.EventType;
GenericArgumentCount = 0;
ParameterTypes = null;
ti.CacheProxyNames(er);
var ed = er.Resolve();
if (ed != null) {
if (ed.AddMethod != null) {
IsStatic = ed.AddMethod.IsStatic;
} else if (ed.RemoveMethod != null) {
IsStatic = ed.RemoveMethod.IsStatic;
} else {
// FIXME
IsStatic = false;
}
} else {
// FIXME
IsStatic = false;
}
HashCode = Type.GetHashCode() ^ Name.GetHashCode();
}
static TypeReference[] GetParameterTypes (IList<ParameterDefinition> parameters) {
if (parameters.Count == 0)
return null;
if (parameters.Count == 1) {
var p = parameters[0];
for (int c = p.CustomAttributes.Count, i = 0; i < c; i++) {
var ca = p.CustomAttributes[i];
if ((ca.AttributeType.Name == "ParamArrayAttribute") && (ca.AttributeType.Namespace == "System")) {
var t = JSExpression.DeReferenceType(parameters[0].ParameterType);
var at = t as ArrayType;
if ((at != null) && IsAnyType(at.ElementType))
return AnyParameterTypes;
}
}
}
{
int c = parameters.Count;
var result = new TypeReference[c];
for (int i = 0; i < c; i++) {
TypeReference parameterType = parameters[i].ParameterType, expandedParameterType;
if (TypeUtil.ExpandPositionalGenericParameters(parameterType, out expandedParameterType))
result[i] = expandedParameterType;
else
result[i] = parameterType;
}
return result;
}
}
public static bool IsAnyType (TypeReference t) {
if (t == null)
return false;
return (t.Name == "AnyType" && t.Namespace == "JSIL.Proxy");
}
public static bool TypesAreEqual (ITypeInfoSource typeInfo, TypeReference lhs, TypeReference rhs) {
bool shallowMatch;
if (lhs == rhs)
return true;
else if (lhs == null || rhs == null)
return false;
else if (TypeUtil.TypesAreTriviallyEqual(lhs, rhs, out shallowMatch))
return true;
var lhsReference = lhs as ByReferenceType;
var rhsReference = rhs as ByReferenceType;
if ((lhsReference != null) || (rhsReference != null)) {
if ((lhsReference == null) || (rhsReference == null))
return false;
return TypesAreEqual(typeInfo, lhsReference.ElementType, rhsReference.ElementType);
}
var lhsArray = lhs as ArrayType;
var rhsArray = rhs as ArrayType;
if ((lhsArray != null) || (rhsArray != null)) {
if ((lhsArray == null) || (rhsArray == null))
return false;
return TypesAreEqual(typeInfo, lhsArray.ElementType, rhsArray.ElementType);
}
var lhsGit = lhs as GenericInstanceType;
var rhsGit = rhs as GenericInstanceType;
if ((lhsGit != null) && (rhsGit != null)) {
if (lhsGit.GenericArguments.Count != rhsGit.GenericArguments.Count)
return false;
if (!TypesAreEqual(typeInfo, lhsGit.ElementType, rhsGit.ElementType))
return false;
using (var eLeft = lhsGit.GenericArguments.GetEnumerator())
using (var eRight = rhsGit.GenericArguments.GetEnumerator())
while (eLeft.MoveNext() && eRight.MoveNext()) {
if (!TypesAreEqual(typeInfo, eLeft.Current, eRight.Current))
return false;
}
return true;
}
ArraySegment<string> proxyTargets;
if (
typeInfo.TryGetProxyNames(lhs, out proxyTargets) &&
(proxyTargets.Array != null) &&
proxyTargets.ToEnumerable().Contains(rhs.FullName)
) {
return true;
} else if (
typeInfo.TryGetProxyNames(rhs, out proxyTargets) &&
(proxyTargets.Array != null) &&
proxyTargets.ToEnumerable().Contains(lhs.FullName)
) {
return true;
}
if (IsAnyType(lhs) || IsAnyType(rhs))
return true;
return TypeUtil.TypesAreEqual(lhs, rhs);
}
public bool Equals (MemberIdentifier rhs, ITypeInfoSource typeInfo) {
/*
if (this == rhs)
return true;
*/
if (IsStatic != rhs.IsStatic)
return false;
if (Type != rhs.Type)
return false;
if (GenericArgumentCount != rhs.GenericArgumentCount)
return false;
if (!String.Equals(Name, rhs.Name))
return false;
if (!TypesAreEqual(typeInfo, ReturnType, rhs.ReturnType))
return false;
if ((ParameterTypes == AnyParameterTypes) || (rhs.ParameterTypes == AnyParameterTypes)) {
} else if ((ParameterTypes == null) || (rhs.ParameterTypes == null)) {
if (ParameterTypes != rhs.ParameterTypes)
return false;
} else {
if (ParameterTypes.Length != rhs.ParameterTypes.Length)
return false;
for (int i = 0, c = ParameterTypes.Length; i < c; i++) {
if (!TypesAreEqual(typeInfo, ParameterTypes[i], rhs.ParameterTypes[i]))
return false;
}
}
return true;
}
public MemberIdentifier Getter {
get {
if (Type != MemberType.Property)
throw new InvalidOperationException();
return new MemberIdentifier(
IsStatic, MemberType.Method,
"get_" + Name,
ReturnType, ParameterTypes,
0
);
}
}
public MemberIdentifier Setter {
get {
if (Type != MemberType.Property)
throw new InvalidOperationException();
TypeReference[] parameterTypes;
if (ParameterTypes == null)
parameterTypes = new [] { ReturnType };
else
parameterTypes = ParameterTypes.Concat(new [] { ReturnType }).ToArray();
return new MemberIdentifier(
IsStatic, MemberType.Method,
"set_" + Name,
null, parameterTypes,
0
);
}
}
public override bool Equals (object obj) {
throw new InvalidOperationException("Use MemberIdentifier.Equals(...) explicitly.");
}
public override int GetHashCode () {
return HashCode;
}
public string ToString (string name) {
if (GenericArgumentCount != 0)
name = String.Format("{0}`{1}", name, GenericArgumentCount);
if (ParameterTypes != null)
return String.Format(
"{0} {1} ( {2} )", ReturnType, name,
String.Join(", ", (from p in ParameterTypes select p.ToString()).ToArray())
);
else
return String.Format(
"{0} {1}", ReturnType, name
);
}
public override string ToString () {
return ToString(Name);
}
}
public struct QualifiedMemberIdentifier {
public class Comparer : IEqualityComparer<QualifiedMemberIdentifier> {
public readonly ITypeInfoSource TypeInfo;
public Comparer (ITypeInfoSource typeInfo) {
TypeInfo = typeInfo;
}
public bool Equals (QualifiedMemberIdentifier x, QualifiedMemberIdentifier y) {
/*
if (x == null)
return x == y;
*/
return x.Equals(y, TypeInfo);
}
public int GetHashCode (QualifiedMemberIdentifier obj) {
return obj.GetHashCode();
}
}
public readonly TypeIdentifier Type;
public readonly MemberIdentifier Member;
public QualifiedMemberIdentifier (TypeIdentifier type, MemberIdentifier member) {
Type = type;
Member = member;
}
public override int GetHashCode () {
return Type.GetHashCode() ^ Member.GetHashCode();
}
public bool Equals (MemberReference lhs, MemberReference rhs, ITypeInfoSource typeInfo) {
if ((lhs == null) || (rhs == null))
return lhs == rhs;
if (lhs == rhs)
return true;
var declaringType = rhs.DeclaringType.Resolve();
if (declaringType == null)
return false;
var rhsType = new TypeIdentifier(declaringType);
if (!Type.Equals(rhsType))
return false;
var rhsMember = MemberIdentifier.New(typeInfo, rhs);
return Member.Equals(rhsMember, typeInfo);
}
public bool Equals (QualifiedMemberIdentifier rhs, ITypeInfoSource typeInfo) {
if (!Type.Equals(rhs.Type))
return false;
return Member.Equals(rhs.Member, typeInfo);
}
public override bool Equals (object obj) {
throw new InvalidOperationException("Use QualifiedMemberIdentifier.Equals(...) explicitly.");
}
public override string ToString () {
return String.Format("{0} {1}", Type, Member);
}
}
}