279 lines
11 KiB
C#
279 lines
11 KiB
C#
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/*
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Copyright (C) 2014-2019 de4dot@gmail.com
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This file is part of dnSpy
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dnSpy is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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dnSpy is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with dnSpy. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using System.Collections.Generic;
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namespace dnSpy.Debugger.DotNet.Metadata.Impl {
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abstract class DmdMetadataReaderBase : DmdMetadataReader {
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protected const bool resolveTypes = true;
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static DmdMemberInfo TryResolve(DmdMemberInfo member, DmdResolveOptions options) => (options & DmdResolveOptions.NoTryResolveRefs) != 0 ? member : member.ResolveMemberNoThrow() ?? member;
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static DmdType TryResolve(DmdType member, DmdResolveOptions options) => (options & DmdResolveOptions.NoTryResolveRefs) != 0 ? member : member.ResolveNoThrow() ?? member;
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static DmdFieldInfo TryResolve(DmdFieldInfo member, DmdResolveOptions options) => (options & DmdResolveOptions.NoTryResolveRefs) != 0 ? member : member.ResolveNoThrow() ?? member;
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static DmdMethodBase TryResolve(DmdMethodBase member, DmdResolveOptions options) => (options & DmdResolveOptions.NoTryResolveRefs) != 0 ? member : member.ResolveMethodBaseNoThrow() ?? member;
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public sealed override DmdMethodBase? ResolveMethod(int metadataToken, IList<DmdType>? genericTypeArguments, IList<DmdType>? genericMethodArguments, DmdResolveOptions options) {
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uint rid = (uint)(metadataToken & 0x00FFFFFF);
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switch ((uint)metadataToken >> 24) {
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case 0x06:
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var method = ResolveMethodDef(rid);
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if (method is not null)
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return method;
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break;
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case 0x0A:
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var mr = ResolveMemberRef(rid, genericTypeArguments, genericMethodArguments);
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if (mr is not null) {
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if (mr is DmdMethodBase methodRef)
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return TryResolve(methodRef, options);
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if ((options & DmdResolveOptions.ThrowOnError) != 0)
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throw new ArgumentException();
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}
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break;
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case 0x2B:
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var methodSpec = ResolveMethodSpec(rid, genericTypeArguments, genericMethodArguments);
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if (methodSpec is not null)
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return TryResolve(methodSpec, options);
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break;
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}
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if ((options & DmdResolveOptions.ThrowOnError) != 0)
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throw new ArgumentOutOfRangeException(nameof(metadataToken));
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return null;
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}
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public sealed override DmdFieldInfo? ResolveField(int metadataToken, IList<DmdType>? genericTypeArguments, IList<DmdType>? genericMethodArguments, DmdResolveOptions options) {
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uint rid = (uint)(metadataToken & 0x00FFFFFF);
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switch ((uint)metadataToken >> 24) {
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case 0x04:
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var field = ResolveFieldDef(rid);
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if (field is not null)
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return field;
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break;
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case 0x0A:
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var memberRef = ResolveMemberRef(rid, genericTypeArguments, genericMethodArguments);
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if (memberRef is not null) {
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if (memberRef is DmdFieldInfo fieldRef)
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return TryResolve(fieldRef, options);
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if ((options & DmdResolveOptions.ThrowOnError) != 0)
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throw new ArgumentException();
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}
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break;
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}
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if ((options & DmdResolveOptions.ThrowOnError) != 0)
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throw new ArgumentOutOfRangeException(nameof(metadataToken));
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return null;
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}
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public sealed override DmdType? ResolveType(int metadataToken, IList<DmdType>? genericTypeArguments, IList<DmdType>? genericMethodArguments, DmdResolveOptions options) {
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uint rid = (uint)(metadataToken & 0x00FFFFFF);
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switch ((uint)metadataToken >> 24) {
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case 0x01:
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var typeRef = ResolveTypeRef(rid);
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if (typeRef is not null)
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return TryResolve(typeRef, options);
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break;
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case 0x02:
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var typeDef = ResolveTypeDef(rid);
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if (typeDef is not null)
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return typeDef;
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break;
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case 0x1B:
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var typeSpec = ResolveTypeSpec(rid, genericTypeArguments, genericMethodArguments);
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if (typeSpec is not null)
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return TryResolve(typeSpec, options);
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break;
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case 0x27:
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var exportedType = ResolveExportedType(rid);
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if (exportedType is not null)
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return exportedType;// Don't try to resolve it, callers want the actual reference
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break;
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}
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if ((options & DmdResolveOptions.ThrowOnError) != 0)
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throw new ArgumentOutOfRangeException(nameof(metadataToken));
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return null;
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}
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public sealed override DmdMemberInfo? ResolveMember(int metadataToken, IList<DmdType>? genericTypeArguments, IList<DmdType>? genericMethodArguments, DmdResolveOptions options) {
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uint rid = (uint)(metadataToken & 0x00FFFFFF);
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switch ((uint)metadataToken >> 24) {
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case 0x01:
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var typeRef = ResolveTypeRef(rid);
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if (typeRef is not null)
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return TryResolve(typeRef, options);
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break;
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case 0x02:
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var typeDef = ResolveTypeDef(rid);
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if (typeDef is not null)
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return typeDef;
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break;
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case 0x04:
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var field = ResolveFieldDef(rid);
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if (field is not null)
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return field;
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break;
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case 0x06:
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var method = ResolveMethodDef(rid);
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if (method is not null)
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return method;
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break;
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case 0x0A:
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var memberRef = ResolveMemberRef(rid, genericTypeArguments, genericMethodArguments);
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if (memberRef is not null)
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return TryResolve(memberRef, options);
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break;
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case 0x1B:
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var typeSpec = ResolveTypeSpec(rid, genericTypeArguments, genericMethodArguments);
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if (typeSpec is not null)
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return TryResolve(typeSpec, options);
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break;
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case 0x27:
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var exportedType = ResolveExportedType(rid);
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if (exportedType is not null)
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return exportedType;// Don't try to resolve it, callers want the actual reference
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break;
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case 0x2B:
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var methodSpec = ResolveMethodSpec(rid, genericTypeArguments, genericMethodArguments);
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if (methodSpec is not null)
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return TryResolve(methodSpec, options);
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break;
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}
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if ((options & DmdResolveOptions.ThrowOnError) != 0)
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throw new ArgumentOutOfRangeException(nameof(metadataToken));
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return null;
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}
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public sealed override DmdMethodSignature? ResolveMethodSignature(int metadataToken, IList<DmdType>? genericTypeArguments, IList<DmdType>? genericMethodArguments, DmdResolveOptions options) {
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uint rid = (uint)(metadataToken & 0x00FFFFFF);
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switch ((uint)metadataToken >> 24) {
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case 0x11:
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var methodSig = ResolveMethodSignature(rid, genericTypeArguments, genericMethodArguments);
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if (methodSig is not null)
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return methodSig;
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break;
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}
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if ((options & DmdResolveOptions.ThrowOnError) != 0)
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throw new ArgumentOutOfRangeException(nameof(metadataToken));
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return null;
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}
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protected abstract DmdTypeRef? ResolveTypeRef(uint rid);
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protected abstract DmdTypeDef? ResolveTypeDef(uint rid);
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protected abstract DmdFieldDef? ResolveFieldDef(uint rid);
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protected abstract DmdMethodBase? ResolveMethodDef(uint rid);
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protected abstract DmdMemberInfo? ResolveMemberRef(uint rid, IList<DmdType>? genericTypeArguments, IList<DmdType>? genericMethodArguments);
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protected abstract DmdEventDef? ResolveEventDef(uint rid);
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protected abstract DmdPropertyDef? ResolvePropertyDef(uint rid);
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protected abstract DmdType? ResolveTypeSpec(uint rid, IList<DmdType>? genericTypeArguments, IList<DmdType>? genericMethodArguments);
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protected abstract DmdTypeRef? ResolveExportedType(uint rid);
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protected abstract DmdMethodBase? ResolveMethodSpec(uint rid, IList<DmdType>? genericTypeArguments, IList<DmdType>? genericMethodArguments);
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protected abstract DmdMethodSignature? ResolveMethodSignature(uint rid, IList<DmdType>? genericTypeArguments, IList<DmdType>? genericMethodArguments);
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public sealed override byte[]? ResolveSignature(int metadataToken) {
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byte[]? res;
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uint rid = (uint)(metadataToken & 0x00FFFFFF);
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switch ((uint)metadataToken >> 24) {
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case 0x04: res = ResolveFieldSignature(rid); break;
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case 0x06: res = ResolveMethodSignature(rid); break;
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case 0x0A: res = ResolveMemberRefSignature(rid); break;
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case 0x11: res = ResolveStandAloneSigSignature(rid); break;
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case 0x1B: res = ResolveTypeSpecSignature(rid); break;
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case 0x2B: res = ResolveMethodSpecSignature(rid); break;
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default: res = null; break;
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}
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return res ?? throw new ArgumentOutOfRangeException(nameof(metadataToken));
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}
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protected abstract byte[]? ResolveFieldSignature(uint rid);
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protected abstract byte[]? ResolveMethodSignature(uint rid);
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protected abstract byte[]? ResolveMemberRefSignature(uint rid);
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protected abstract byte[]? ResolveStandAloneSigSignature(uint rid);
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protected abstract byte[]? ResolveTypeSpecSignature(uint rid);
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protected abstract byte[]? ResolveMethodSpecSignature(uint rid);
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public sealed override string ResolveString(int metadataToken) {
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if (((uint)metadataToken >> 24) != 0x70)
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throw new ArgumentOutOfRangeException(nameof(metadataToken));
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uint offset = (uint)metadataToken & 0x00FFFFFF;
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if (offset == 0)
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return string.Empty;
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return ResolveStringCore(offset) ?? throw new ArgumentOutOfRangeException(nameof(offset));
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}
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protected abstract string ResolveStringCore(uint offset);
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public sealed override DmdCustomAttributeData[] ReadCustomAttributes(int metadataToken) {
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uint rid = (uint)(metadataToken & 0x00FFFFFF);
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switch ((uint)metadataToken >> 24) {
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case 0x00: return ReadModuleCustomAttributes(rid);
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case 0x02: return ReadTypeDefCustomAttributes(rid);
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case 0x04: return ReadFieldCustomAttributes(rid);
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case 0x06: return ReadMethodCustomAttributes(rid);
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case 0x08: return ReadParamCustomAttributes(rid);
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case 0x14: return ReadEventCustomAttributes(rid);
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case 0x17: return ReadPropertyCustomAttributes(rid);
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case 0x20: return ReadAssemblyCustomAttributes(rid);
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default: throw new ArgumentOutOfRangeException(nameof(metadataToken));
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}
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}
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protected abstract DmdCustomAttributeData[] ReadAssemblyCustomAttributes(uint rid);
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protected abstract DmdCustomAttributeData[] ReadModuleCustomAttributes(uint rid);
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protected abstract DmdCustomAttributeData[] ReadTypeDefCustomAttributes(uint rid);
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protected abstract DmdCustomAttributeData[] ReadFieldCustomAttributes(uint rid);
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protected abstract DmdCustomAttributeData[] ReadMethodCustomAttributes(uint rid);
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protected abstract DmdCustomAttributeData[] ReadParamCustomAttributes(uint rid);
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protected abstract DmdCustomAttributeData[] ReadEventCustomAttributes(uint rid);
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protected abstract DmdCustomAttributeData[] ReadPropertyCustomAttributes(uint rid);
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public sealed override DmdCustomAttributeData[] ReadSecurityAttributes(int metadataToken) {
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uint rid = (uint)(metadataToken & 0x00FFFFFF);
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switch ((uint)metadataToken >> 24) {
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case 0x02: return ReadTypeDefSecurityAttributes(rid);
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case 0x06: return ReadMethodSecurityAttributes(rid);
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case 0x20: return ReadAssemblySecurityAttributes(rid);
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default: throw new ArgumentOutOfRangeException(nameof(metadataToken));
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}
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}
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protected abstract DmdCustomAttributeData[] ReadAssemblySecurityAttributes(uint rid);
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protected abstract DmdCustomAttributeData[] ReadTypeDefSecurityAttributes(uint rid);
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protected abstract DmdCustomAttributeData[] ReadMethodSecurityAttributes(uint rid);
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public override event EventHandler<DmdTypesUpdatedEventArgs>? TypesUpdated { add { } remove { } }
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}
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}
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