546 lines
17 KiB
C#
546 lines
17 KiB
C#
//
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// Author:
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// Jb Evain (jbevain@gmail.com)
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//
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// Copyright (c) 2008 - 2015 Jb Evain
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// Copyright (c) 2008 - 2011 Novell, Inc.
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//
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// Licensed under the MIT/X11 license.
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//
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using System;
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using Mono.Cecil.Cil;
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using Mono.Collections.Generic;
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using RVA = System.UInt32;
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namespace Mono.Cecil {
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public sealed class MethodDefinition : MethodReference, IMemberDefinition, ISecurityDeclarationProvider, ICustomDebugInformationProvider {
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ushort attributes;
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ushort impl_attributes;
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internal volatile bool sem_attrs_ready;
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internal MethodSemanticsAttributes sem_attrs;
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Collection<CustomAttribute> custom_attributes;
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Collection<SecurityDeclaration> security_declarations;
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internal RVA rva;
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internal PInvokeInfo pinvoke;
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Collection<MethodReference> overrides;
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internal MethodBody body;
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internal MethodDebugInformation debug_info;
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internal Collection<CustomDebugInformation> custom_infos;
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public override string Name {
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get { return base.Name; }
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set {
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if (IsWindowsRuntimeProjection && value != base.Name)
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throw new InvalidOperationException ();
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base.Name = value;
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}
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}
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public MethodAttributes Attributes {
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get { return (MethodAttributes) attributes; }
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set {
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if (IsWindowsRuntimeProjection && (ushort) value != attributes)
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throw new InvalidOperationException ();
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attributes = (ushort) value;
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}
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}
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public MethodImplAttributes ImplAttributes {
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get { return (MethodImplAttributes) impl_attributes; }
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set {
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if (IsWindowsRuntimeProjection && (ushort) value != impl_attributes)
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throw new InvalidOperationException ();
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impl_attributes = (ushort) value;
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}
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}
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public MethodSemanticsAttributes SemanticsAttributes {
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get {
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if (sem_attrs_ready)
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return sem_attrs;
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if (HasImage) {
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ReadSemantics ();
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return sem_attrs;
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}
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sem_attrs = MethodSemanticsAttributes.None;
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sem_attrs_ready = true;
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return sem_attrs;
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}
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set { sem_attrs = value; }
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}
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internal new MethodDefinitionProjection WindowsRuntimeProjection {
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get { return (MethodDefinitionProjection) projection; }
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set { projection = value; }
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}
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internal void ReadSemantics ()
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{
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if (sem_attrs_ready)
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return;
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var module = this.Module;
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if (module == null)
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return;
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if (!module.HasImage)
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return;
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module.Read (this, (method, reader) => reader.ReadAllSemantics (method));
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}
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public bool HasSecurityDeclarations {
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get {
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if (security_declarations != null)
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return security_declarations.Count > 0;
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return this.GetHasSecurityDeclarations (Module);
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}
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}
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public Collection<SecurityDeclaration> SecurityDeclarations {
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get { return security_declarations ?? (this.GetSecurityDeclarations (ref security_declarations, Module)); }
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}
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public bool HasCustomAttributes {
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get {
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if (custom_attributes != null)
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return custom_attributes.Count > 0;
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return this.GetHasCustomAttributes (Module);
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}
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}
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public Collection<CustomAttribute> CustomAttributes {
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get { return custom_attributes ?? (this.GetCustomAttributes (ref custom_attributes, Module)); }
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}
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public int RVA {
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get { return (int) rva; }
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}
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public bool HasBody {
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get {
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return (attributes & (ushort) MethodAttributes.Abstract) == 0 &&
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(attributes & (ushort) MethodAttributes.PInvokeImpl) == 0 &&
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(impl_attributes & (ushort) MethodImplAttributes.InternalCall) == 0 &&
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(impl_attributes & (ushort) MethodImplAttributes.Native) == 0 &&
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(impl_attributes & (ushort) MethodImplAttributes.Unmanaged) == 0 &&
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(impl_attributes & (ushort) MethodImplAttributes.Runtime) == 0;
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}
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}
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public MethodBody Body {
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get {
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var local = this.body;
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if (local != null)
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return local;
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if (!HasBody)
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return null;
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if (HasImage && rva != 0)
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return Module.Read (ref body, this, (method, reader) => reader.ReadMethodBody (method));
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return body = new MethodBody (this);
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}
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set {
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var module = this.Module;
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if (module == null) {
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body = value;
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return;
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}
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// we reset Body to null in ILSpy to save memory; so we need that operation to be thread-safe
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lock (module.SyncRoot) {
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body = value;
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if (value == null)
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this.debug_info = null;
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}
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}
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}
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public MethodDebugInformation DebugInformation {
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get {
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Mixin.Read (Body);
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if (debug_info != null)
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return debug_info;
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return debug_info ?? (debug_info = new MethodDebugInformation (this));
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}
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set {
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debug_info = value;
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}
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}
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public bool HasPInvokeInfo {
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get {
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if (pinvoke != null)
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return true;
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return IsPInvokeImpl;
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}
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}
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public PInvokeInfo PInvokeInfo {
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get {
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if (pinvoke != null)
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return pinvoke;
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if (HasImage && IsPInvokeImpl)
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return Module.Read (ref pinvoke, this, (method, reader) => reader.ReadPInvokeInfo (method));
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return null;
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}
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set {
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IsPInvokeImpl = true;
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pinvoke = value;
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}
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}
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public bool HasOverrides {
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get {
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if (overrides != null)
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return overrides.Count > 0;
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return HasImage && Module.Read (this, (method, reader) => reader.HasOverrides (method));
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}
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}
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public Collection<MethodReference> Overrides {
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get {
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if (overrides != null)
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return overrides;
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if (HasImage)
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return Module.Read (ref overrides, this, (method, reader) => reader.ReadOverrides (method));
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return overrides = new Collection<MethodReference> ();
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}
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}
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public override bool HasGenericParameters {
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get {
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if (generic_parameters != null)
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return generic_parameters.Count > 0;
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return this.GetHasGenericParameters (Module);
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}
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}
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public override Collection<GenericParameter> GenericParameters {
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get { return generic_parameters ?? (this.GetGenericParameters (ref generic_parameters, Module)); }
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}
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public bool HasCustomDebugInformations {
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get {
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Mixin.Read (Body);
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return !custom_infos.IsNullOrEmpty ();
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}
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}
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public Collection<CustomDebugInformation> CustomDebugInformations {
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get {
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Mixin.Read (Body);
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return custom_infos ?? (custom_infos = new Collection<CustomDebugInformation> ());
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}
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}
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#region MethodAttributes
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public bool IsCompilerControlled {
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get { return attributes.GetMaskedAttributes ((ushort) MethodAttributes.MemberAccessMask, (ushort) MethodAttributes.CompilerControlled); }
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set { attributes = attributes.SetMaskedAttributes ((ushort) MethodAttributes.MemberAccessMask, (ushort) MethodAttributes.CompilerControlled, value); }
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}
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public bool IsPrivate {
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get { return attributes.GetMaskedAttributes ((ushort) MethodAttributes.MemberAccessMask, (ushort) MethodAttributes.Private); }
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set { attributes = attributes.SetMaskedAttributes ((ushort) MethodAttributes.MemberAccessMask, (ushort) MethodAttributes.Private, value); }
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}
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public bool IsFamilyAndAssembly {
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get { return attributes.GetMaskedAttributes ((ushort) MethodAttributes.MemberAccessMask, (ushort) MethodAttributes.FamANDAssem); }
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set { attributes = attributes.SetMaskedAttributes ((ushort) MethodAttributes.MemberAccessMask, (ushort) MethodAttributes.FamANDAssem, value); }
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}
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public bool IsAssembly {
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get { return attributes.GetMaskedAttributes ((ushort) MethodAttributes.MemberAccessMask, (ushort) MethodAttributes.Assembly); }
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set { attributes = attributes.SetMaskedAttributes ((ushort) MethodAttributes.MemberAccessMask, (ushort) MethodAttributes.Assembly, value); }
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}
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public bool IsFamily {
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get { return attributes.GetMaskedAttributes ((ushort) MethodAttributes.MemberAccessMask, (ushort) MethodAttributes.Family); }
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set { attributes = attributes.SetMaskedAttributes ((ushort) MethodAttributes.MemberAccessMask, (ushort) MethodAttributes.Family, value); }
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}
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public bool IsFamilyOrAssembly {
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get { return attributes.GetMaskedAttributes ((ushort) MethodAttributes.MemberAccessMask, (ushort) MethodAttributes.FamORAssem); }
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set { attributes = attributes.SetMaskedAttributes ((ushort) MethodAttributes.MemberAccessMask, (ushort) MethodAttributes.FamORAssem, value); }
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}
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public bool IsPublic {
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get { return attributes.GetMaskedAttributes ((ushort) MethodAttributes.MemberAccessMask, (ushort) MethodAttributes.Public); }
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set { attributes = attributes.SetMaskedAttributes ((ushort) MethodAttributes.MemberAccessMask, (ushort) MethodAttributes.Public, value); }
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}
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public bool IsStatic {
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get { return attributes.GetAttributes ((ushort) MethodAttributes.Static); }
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set { attributes = attributes.SetAttributes ((ushort) MethodAttributes.Static, value); }
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}
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public bool IsFinal {
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get { return attributes.GetAttributes ((ushort) MethodAttributes.Final); }
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set { attributes = attributes.SetAttributes ((ushort) MethodAttributes.Final, value); }
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}
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public bool IsVirtual {
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get { return attributes.GetAttributes ((ushort) MethodAttributes.Virtual); }
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set { attributes = attributes.SetAttributes ((ushort) MethodAttributes.Virtual, value); }
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}
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public bool IsHideBySig {
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get { return attributes.GetAttributes ((ushort) MethodAttributes.HideBySig); }
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set { attributes = attributes.SetAttributes ((ushort) MethodAttributes.HideBySig, value); }
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}
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public bool IsReuseSlot {
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get { return attributes.GetMaskedAttributes ((ushort) MethodAttributes.VtableLayoutMask, (ushort) MethodAttributes.ReuseSlot); }
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set { attributes = attributes.SetMaskedAttributes ((ushort) MethodAttributes.VtableLayoutMask, (ushort) MethodAttributes.ReuseSlot, value); }
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}
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public bool IsNewSlot {
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get { return attributes.GetMaskedAttributes ((ushort) MethodAttributes.VtableLayoutMask, (ushort) MethodAttributes.NewSlot); }
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set { attributes = attributes.SetMaskedAttributes ((ushort) MethodAttributes.VtableLayoutMask, (ushort) MethodAttributes.NewSlot, value); }
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}
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public bool IsCheckAccessOnOverride {
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get { return attributes.GetAttributes ((ushort) MethodAttributes.CheckAccessOnOverride); }
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set { attributes = attributes.SetAttributes ((ushort) MethodAttributes.CheckAccessOnOverride, value); }
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}
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public bool IsAbstract {
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get { return attributes.GetAttributes ((ushort) MethodAttributes.Abstract); }
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set { attributes = attributes.SetAttributes ((ushort) MethodAttributes.Abstract, value); }
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}
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public bool IsSpecialName {
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get { return attributes.GetAttributes ((ushort) MethodAttributes.SpecialName); }
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set { attributes = attributes.SetAttributes ((ushort) MethodAttributes.SpecialName, value); }
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}
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public bool IsPInvokeImpl {
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get { return attributes.GetAttributes ((ushort) MethodAttributes.PInvokeImpl); }
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set { attributes = attributes.SetAttributes ((ushort) MethodAttributes.PInvokeImpl, value); }
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}
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public bool IsUnmanagedExport {
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get { return attributes.GetAttributes ((ushort) MethodAttributes.UnmanagedExport); }
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set { attributes = attributes.SetAttributes ((ushort) MethodAttributes.UnmanagedExport, value); }
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}
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public bool IsRuntimeSpecialName {
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get { return attributes.GetAttributes ((ushort) MethodAttributes.RTSpecialName); }
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set { attributes = attributes.SetAttributes ((ushort) MethodAttributes.RTSpecialName, value); }
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}
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public bool HasSecurity {
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get { return attributes.GetAttributes ((ushort) MethodAttributes.HasSecurity); }
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set { attributes = attributes.SetAttributes ((ushort) MethodAttributes.HasSecurity, value); }
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}
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#endregion
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#region MethodImplAttributes
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public bool IsIL {
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get { return impl_attributes.GetMaskedAttributes ((ushort) MethodImplAttributes.CodeTypeMask, (ushort) MethodImplAttributes.IL); }
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set { impl_attributes = impl_attributes.SetMaskedAttributes ((ushort) MethodImplAttributes.CodeTypeMask, (ushort) MethodImplAttributes.IL, value); }
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}
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public bool IsNative {
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get { return impl_attributes.GetMaskedAttributes ((ushort) MethodImplAttributes.CodeTypeMask, (ushort) MethodImplAttributes.Native); }
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set { impl_attributes = impl_attributes.SetMaskedAttributes ((ushort) MethodImplAttributes.CodeTypeMask, (ushort) MethodImplAttributes.Native, value); }
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}
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public bool IsRuntime {
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get { return impl_attributes.GetMaskedAttributes ((ushort) MethodImplAttributes.CodeTypeMask, (ushort) MethodImplAttributes.Runtime); }
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set { impl_attributes = impl_attributes.SetMaskedAttributes ((ushort) MethodImplAttributes.CodeTypeMask, (ushort) MethodImplAttributes.Runtime, value); }
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}
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public bool IsUnmanaged {
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get { return impl_attributes.GetMaskedAttributes ((ushort) MethodImplAttributes.ManagedMask, (ushort) MethodImplAttributes.Unmanaged); }
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set { impl_attributes = impl_attributes.SetMaskedAttributes ((ushort) MethodImplAttributes.ManagedMask, (ushort) MethodImplAttributes.Unmanaged, value); }
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}
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public bool IsManaged {
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get { return impl_attributes.GetMaskedAttributes ((ushort) MethodImplAttributes.ManagedMask, (ushort) MethodImplAttributes.Managed); }
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set { impl_attributes = impl_attributes.SetMaskedAttributes ((ushort) MethodImplAttributes.ManagedMask, (ushort) MethodImplAttributes.Managed, value); }
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}
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public bool IsForwardRef {
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get { return impl_attributes.GetAttributes ((ushort) MethodImplAttributes.ForwardRef); }
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set { impl_attributes = impl_attributes.SetAttributes ((ushort) MethodImplAttributes.ForwardRef, value); }
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}
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public bool IsPreserveSig {
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get { return impl_attributes.GetAttributes ((ushort) MethodImplAttributes.PreserveSig); }
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set { impl_attributes = impl_attributes.SetAttributes ((ushort) MethodImplAttributes.PreserveSig, value); }
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}
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public bool IsInternalCall {
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get { return impl_attributes.GetAttributes ((ushort) MethodImplAttributes.InternalCall); }
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set { impl_attributes = impl_attributes.SetAttributes ((ushort) MethodImplAttributes.InternalCall, value); }
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}
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public bool IsSynchronized {
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get { return impl_attributes.GetAttributes ((ushort) MethodImplAttributes.Synchronized); }
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set { impl_attributes = impl_attributes.SetAttributes ((ushort) MethodImplAttributes.Synchronized, value); }
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}
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public bool NoInlining {
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get { return impl_attributes.GetAttributes ((ushort) MethodImplAttributes.NoInlining); }
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set { impl_attributes = impl_attributes.SetAttributes ((ushort) MethodImplAttributes.NoInlining, value); }
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}
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public bool NoOptimization {
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get { return impl_attributes.GetAttributes ((ushort) MethodImplAttributes.NoOptimization); }
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set { impl_attributes = impl_attributes.SetAttributes ((ushort) MethodImplAttributes.NoOptimization, value); }
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}
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public bool AggressiveInlining {
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get { return impl_attributes.GetAttributes ((ushort) MethodImplAttributes.AggressiveInlining); }
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set { impl_attributes = impl_attributes.SetAttributes ((ushort) MethodImplAttributes.AggressiveInlining, value); }
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}
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#endregion
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#region MethodSemanticsAttributes
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public bool IsSetter {
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get { return this.GetSemantics (MethodSemanticsAttributes.Setter); }
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set { this.SetSemantics (MethodSemanticsAttributes.Setter, value); }
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}
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public bool IsGetter {
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get { return this.GetSemantics (MethodSemanticsAttributes.Getter); }
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set { this.SetSemantics (MethodSemanticsAttributes.Getter, value); }
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}
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public bool IsOther {
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get { return this.GetSemantics (MethodSemanticsAttributes.Other); }
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set { this.SetSemantics (MethodSemanticsAttributes.Other, value); }
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}
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public bool IsAddOn {
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get { return this.GetSemantics (MethodSemanticsAttributes.AddOn); }
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set { this.SetSemantics (MethodSemanticsAttributes.AddOn, value); }
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}
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public bool IsRemoveOn {
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get { return this.GetSemantics (MethodSemanticsAttributes.RemoveOn); }
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set { this.SetSemantics (MethodSemanticsAttributes.RemoveOn, value); }
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}
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public bool IsFire {
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get { return this.GetSemantics (MethodSemanticsAttributes.Fire); }
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set { this.SetSemantics (MethodSemanticsAttributes.Fire, value); }
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}
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#endregion
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public new TypeDefinition DeclaringType {
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get { return (TypeDefinition) base.DeclaringType; }
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set { base.DeclaringType = value; }
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}
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public bool IsConstructor {
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get {
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return this.IsRuntimeSpecialName
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&& this.IsSpecialName
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&& (this.Name == ".cctor" || this.Name == ".ctor");
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}
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}
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public override bool IsDefinition {
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get { return true; }
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}
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internal MethodDefinition ()
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{
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this.token = new MetadataToken (TokenType.Method);
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}
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public MethodDefinition (string name, MethodAttributes attributes, TypeReference returnType)
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: base (name, returnType)
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{
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this.attributes = (ushort) attributes;
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this.HasThis = !this.IsStatic;
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this.token = new MetadataToken (TokenType.Method);
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}
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public override MethodDefinition Resolve ()
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{
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return this;
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}
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}
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static partial class Mixin {
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public static ParameterDefinition GetParameter (this MethodBody self, int index)
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{
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var method = self.method;
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if (method.HasThis) {
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if (index == 0)
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return self.ThisParameter;
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index--;
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}
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var parameters = method.Parameters;
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if (index < 0 || index >= parameters.size)
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return null;
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return parameters [index];
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}
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public static VariableDefinition GetVariable (this MethodBody self, int index)
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{
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var variables = self.Variables;
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if (index < 0 || index >= variables.size)
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return null;
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return variables [index];
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}
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public static bool GetSemantics (this MethodDefinition self, MethodSemanticsAttributes semantics)
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{
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return (self.SemanticsAttributes & semantics) != 0;
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}
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public static void SetSemantics (this MethodDefinition self, MethodSemanticsAttributes semantics, bool value)
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{
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if (value)
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self.SemanticsAttributes |= semantics;
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else
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self.SemanticsAttributes &= ~semantics;
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}
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}
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}
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