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//
// MetadataSystem.cs
//
// Author:
// Jb Evain (jbevain@gmail.com)
//
// Copyright (c) 2008 - 2011 Jb Evain
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections.Generic;
using Mono.Cecil.Metadata;
namespace Mono.Cecil {
struct Range {
public uint Start;
public uint Length;
public Range (uint index, uint length)
{
this.Start = index;
this.Length = length;
}
}
sealed class MetadataSystem {
internal AssemblyNameReference [] AssemblyReferences;
internal ModuleReference [] ModuleReferences;
internal TypeDefinition [] Types;
internal TypeReference [] TypeReferences;
internal FieldDefinition [] Fields;
internal MethodDefinition [] Methods;
internal MemberReference [] MemberReferences;
internal Dictionary<uint, uint []> NestedTypes;
internal Dictionary<uint, uint> ReverseNestedTypes;
internal Dictionary<uint, MetadataToken []> Interfaces;
internal Dictionary<uint, Row<ushort, uint>> ClassLayouts;
internal Dictionary<uint, uint> FieldLayouts;
internal Dictionary<uint, uint> FieldRVAs;
internal Dictionary<MetadataToken, uint> FieldMarshals;
internal Dictionary<MetadataToken, Row<ElementType, uint>> Constants;
internal Dictionary<uint, MetadataToken []> Overrides;
internal Dictionary<MetadataToken, Range> CustomAttributes;
internal Dictionary<MetadataToken, Range> SecurityDeclarations;
internal Dictionary<uint, Range> Events;
internal Dictionary<uint, Range> Properties;
internal Dictionary<uint, Row<MethodSemanticsAttributes, MetadataToken>> Semantics;
internal Dictionary<uint, Row<PInvokeAttributes, uint, uint>> PInvokes;
internal Dictionary<MetadataToken, Range> GenericParameters;
internal Dictionary<uint, MetadataToken []> GenericConstraints;
static Dictionary<string, Row<ElementType, bool>> primitive_value_types;
static void InitializePrimitives ()
{
primitive_value_types = new Dictionary<string, Row<ElementType, bool>> (18, StringComparer.Ordinal) {
{ "Void", new Row<ElementType, bool> (ElementType.Void, false) },
{ "Boolean", new Row<ElementType, bool> (ElementType.Boolean, true) },
{ "Char", new Row<ElementType, bool> (ElementType.Char, true) },
{ "SByte", new Row<ElementType, bool> (ElementType.I1, true) },
{ "Byte", new Row<ElementType, bool> (ElementType.U1, true) },
{ "Int16", new Row<ElementType, bool> (ElementType.I2, true) },
{ "UInt16", new Row<ElementType, bool> (ElementType.U2, true) },
{ "Int32", new Row<ElementType, bool> (ElementType.I4, true) },
{ "UInt32", new Row<ElementType, bool> (ElementType.U4, true) },
{ "Int64", new Row<ElementType, bool> (ElementType.I8, true) },
{ "UInt64", new Row<ElementType, bool> (ElementType.U8, true) },
{ "Single", new Row<ElementType, bool> (ElementType.R4, true) },
{ "Double", new Row<ElementType, bool> (ElementType.R8, true) },
{ "String", new Row<ElementType, bool> (ElementType.String, false) },
{ "TypedReference", new Row<ElementType, bool> (ElementType.TypedByRef, false) },
{ "IntPtr", new Row<ElementType, bool> (ElementType.I, true) },
{ "UIntPtr", new Row<ElementType, bool> (ElementType.U, true) },
{ "Object", new Row<ElementType, bool> (ElementType.Object, false) },
};
}
public static void TryProcessPrimitiveTypeReference (TypeReference type)
{
if (type.Namespace != "System")
return;
var scope = type.scope;
if (scope == null || scope.MetadataScopeType != MetadataScopeType.AssemblyNameReference)
return;
Row<ElementType, bool> primitive_data;
if (!TryGetPrimitiveData (type, out primitive_data))
return;
type.etype = primitive_data.Col1;
type.IsValueType = primitive_data.Col2;
}
public static bool TryGetPrimitiveElementType (TypeDefinition type, out ElementType etype)
{
etype = ElementType.None;
if (type.Namespace != "System")
return false;
Row<ElementType, bool> primitive_data;
if (TryGetPrimitiveData (type, out primitive_data) && primitive_data.Col1.IsPrimitive ()) {
etype = primitive_data.Col1;
return true;
}
return false;
}
static bool TryGetPrimitiveData (TypeReference type, out Row<ElementType, bool> primitive_data)
{
if (primitive_value_types == null)
InitializePrimitives ();
return primitive_value_types.TryGetValue (type.Name, out primitive_data);
}
public void Clear ()
{
if (NestedTypes != null) NestedTypes.Clear ();
if (ReverseNestedTypes != null) ReverseNestedTypes.Clear ();
if (Interfaces != null) Interfaces.Clear ();
if (ClassLayouts != null) ClassLayouts.Clear ();
if (FieldLayouts != null) FieldLayouts.Clear ();
if (FieldRVAs != null) FieldRVAs.Clear ();
if (FieldMarshals != null) FieldMarshals.Clear ();
if (Constants != null) Constants.Clear ();
if (Overrides != null) Overrides.Clear ();
if (CustomAttributes != null) CustomAttributes.Clear ();
if (SecurityDeclarations != null) SecurityDeclarations.Clear ();
if (Events != null) Events.Clear ();
if (Properties != null) Properties.Clear ();
if (Semantics != null) Semantics.Clear ();
if (PInvokes != null) PInvokes.Clear ();
if (GenericParameters != null) GenericParameters.Clear ();
if (GenericConstraints != null) GenericConstraints.Clear ();
}
public TypeDefinition GetTypeDefinition (uint rid)
{
if (rid < 1 || rid > Types.Length)
return null;
return Types [rid - 1];
}
public void AddTypeDefinition (TypeDefinition type)
{
Types [type.token.RID - 1] = type;
}
public TypeReference GetTypeReference (uint rid)
{
if (rid < 1 || rid > TypeReferences.Length)
return null;
return TypeReferences [rid - 1];
}
public void AddTypeReference (TypeReference type)
{
TypeReferences [type.token.RID - 1] = type;
}
public FieldDefinition GetFieldDefinition (uint rid)
{
if (rid < 1 || rid > Fields.Length)
return null;
return Fields [rid - 1];
}
public void AddFieldDefinition (FieldDefinition field)
{
Fields [field.token.RID - 1] = field;
}
public MethodDefinition GetMethodDefinition (uint rid)
{
if (rid < 1 || rid > Methods.Length)
return null;
return Methods [rid - 1];
}
public void AddMethodDefinition (MethodDefinition method)
{
Methods [method.token.RID - 1] = method;
}
public MemberReference GetMemberReference (uint rid)
{
if (rid < 1 || rid > MemberReferences.Length)
return null;
return MemberReferences [rid - 1];
}
public void AddMemberReference (MemberReference member)
{
MemberReferences [member.token.RID - 1] = member;
}
public bool TryGetNestedTypeMapping (TypeDefinition type, out uint [] mapping)
{
return NestedTypes.TryGetValue (type.token.RID, out mapping);
}
public void SetNestedTypeMapping (uint type_rid, uint [] mapping)
{
NestedTypes [type_rid] = mapping;
}
public void RemoveNestedTypeMapping (TypeDefinition type)
{
NestedTypes.Remove (type.token.RID);
}
public bool TryGetReverseNestedTypeMapping (TypeDefinition type, out uint declaring)
{
return ReverseNestedTypes.TryGetValue (type.token.RID, out declaring);
}
public void SetReverseNestedTypeMapping (uint nested, uint declaring)
{
ReverseNestedTypes.Add (nested, declaring);
}
public void RemoveReverseNestedTypeMapping (TypeDefinition type)
{
ReverseNestedTypes.Remove (type.token.RID);
}
public bool TryGetInterfaceMapping (TypeDefinition type, out MetadataToken [] mapping)
{
return Interfaces.TryGetValue (type.token.RID, out mapping);
}
public void SetInterfaceMapping (uint type_rid, MetadataToken [] mapping)
{
Interfaces [type_rid] = mapping;
}
public void RemoveInterfaceMapping (TypeDefinition type)
{
Interfaces.Remove (type.token.RID);
}
public void AddPropertiesRange (uint type_rid, Range range)
{
Properties.Add (type_rid, range);
}
public bool TryGetPropertiesRange (TypeDefinition type, out Range range)
{
return Properties.TryGetValue (type.token.RID, out range);
}
public void RemovePropertiesRange (TypeDefinition type)
{
Properties.Remove (type.token.RID);
}
public void AddEventsRange (uint type_rid, Range range)
{
Events.Add (type_rid, range);
}
public bool TryGetEventsRange (TypeDefinition type, out Range range)
{
return Events.TryGetValue (type.token.RID, out range);
}
public void RemoveEventsRange (TypeDefinition type)
{
Events.Remove (type.token.RID);
}
public bool TryGetGenericParameterRange (IGenericParameterProvider owner, out Range range)
{
return GenericParameters.TryGetValue (owner.MetadataToken, out range);
}
public void RemoveGenericParameterRange (IGenericParameterProvider owner)
{
GenericParameters.Remove (owner.MetadataToken);
}
public bool TryGetCustomAttributeRange (ICustomAttributeProvider owner, out Range range)
{
return CustomAttributes.TryGetValue (owner.MetadataToken, out range);
}
public void RemoveCustomAttributeRange (ICustomAttributeProvider owner)
{
CustomAttributes.Remove (owner.MetadataToken);
}
public bool TryGetSecurityDeclarationRange (ISecurityDeclarationProvider owner, out Range range)
{
return SecurityDeclarations.TryGetValue (owner.MetadataToken, out range);
}
public void RemoveSecurityDeclarationRange (ISecurityDeclarationProvider owner)
{
SecurityDeclarations.Remove (owner.MetadataToken);
}
public bool TryGetGenericConstraintMapping (GenericParameter generic_parameter, out MetadataToken [] mapping)
{
return GenericConstraints.TryGetValue (generic_parameter.token.RID, out mapping);
}
public void SetGenericConstraintMapping (uint gp_rid, MetadataToken [] mapping)
{
GenericConstraints [gp_rid] = mapping;
}
public void RemoveGenericConstraintMapping (GenericParameter generic_parameter)
{
GenericConstraints.Remove (generic_parameter.token.RID);
}
public bool TryGetOverrideMapping (MethodDefinition method, out MetadataToken [] mapping)
{
return Overrides.TryGetValue (method.token.RID, out mapping);
}
public void SetOverrideMapping (uint rid, MetadataToken [] mapping)
{
Overrides [rid] = mapping;
}
public void RemoveOverrideMapping (MethodDefinition method)
{
Overrides.Remove (method.token.RID);
}
public TypeDefinition GetFieldDeclaringType (uint field_rid)
{
return BinaryRangeSearch (Types, field_rid, true);
}
public TypeDefinition GetMethodDeclaringType (uint method_rid)
{
return BinaryRangeSearch (Types, method_rid, false);
}
static TypeDefinition BinaryRangeSearch (TypeDefinition [] types, uint rid, bool field)
{
int min = 0;
int max = types.Length - 1;
while (min <= max) {
int mid = min + ((max - min) / 2);
var type = types [mid];
var range = field ? type.fields_range : type.methods_range;
if (rid < range.Start)
max = mid - 1;
else if (rid >= range.Start + range.Length)
min = mid + 1;
else
return type;
}
return null;
}
}
}
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