227 lines
8.2 KiB
C#
227 lines
8.2 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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using System.Collections.ObjectModel;
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using System.Diagnostics;
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using dnSpy.Debugger.DotNet.Metadata.Impl;
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namespace dnSpy.Debugger.DotNet.Metadata {
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/// <summary>
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/// A .NET method
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/// </summary>
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public abstract class DmdMethodInfo : DmdMethodBase, IEquatable<DmdMethodInfo?> {
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/// <summary>
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/// Gets the member type
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/// </summary>
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public sealed override DmdMemberTypes MemberType => DmdMemberTypes.Method;
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/// <summary>
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/// Resolves a member reference
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/// </summary>
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/// <param name="throwOnError">true to throw if it doesn't exist, false to return null if it doesn't exist</param>
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/// <returns></returns>
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public sealed override DmdMemberInfo? ResolveMember(bool throwOnError) => Resolve(throwOnError);
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/// <summary>
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/// Resolves a method reference
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/// </summary>
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/// <param name="throwOnError">true to throw if it doesn't exist, false to return null if it doesn't exist</param>
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/// <returns></returns>
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public sealed override DmdMethodBase? ResolveMethodBase(bool throwOnError) => Resolve(throwOnError);
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/// <summary>
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/// Resolves a method reference and throws if it doesn't exist
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/// </summary>
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/// <returns></returns>
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public DmdMethodInfo Resolve() => Resolve(throwOnError: true)!;
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/// <summary>
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/// Resolves a method reference and returns null if it doesn't exist
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/// </summary>
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/// <returns></returns>
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public DmdMethodInfo? ResolveNoThrow() => Resolve(throwOnError: false);
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/// <summary>
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/// Resolves a method reference
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/// </summary>
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/// <param name="throwOnError">true to throw if it doesn't exist, false to return null if it doesn't exist</param>
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/// <returns></returns>
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public abstract DmdMethodInfo? Resolve(bool throwOnError);
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/// <summary>
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/// Gets the return type
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/// </summary>
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public abstract DmdType ReturnType { get; }
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/// <summary>
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/// Gets the return parameter
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/// </summary>
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public abstract DmdParameterInfo ReturnParameter { get; }
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/// <summary>
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/// Gets the return type's custom attributes
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/// </summary>
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public IDmdCustomAttributeProvider ReturnTypeCustomAttributes => ReturnParameter;
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/// <summary>
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/// true if it contains generic parameters
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/// </summary>
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public override bool ContainsGenericParameters {
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get {
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if (DeclaringType!.ContainsGenericParameters)
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return true;
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if (!IsGenericMethod)
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return false;
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foreach (var genArg in GetGenericArguments()) {
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if (genArg.ContainsGenericParameters)
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return true;
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}
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return false;
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}
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}
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/// <summary>
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/// Gets the base method definition or itself if it doesn't override a method
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/// </summary>
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/// <returns></returns>
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public DmdMethodInfo GetBaseDefinition() {
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if (!IsVirtual && !IsAbstract)
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return this;
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if (DeclaringType!.IsInterface)
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return this;
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var method = this;
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for (;;) {
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var parentMethod = method.GetParentDefinition();
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if (parentMethod is null) {
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Debug.Assert((object?)ReflectedType == method.ReflectedType);
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if ((object?)method.DeclaringType == method.ReflectedType)
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return method;
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return method.DeclaringType!.GetMethod(method.Module, method.MetadataToken) as DmdMethodInfo ?? throw new InvalidOperationException();
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}
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method = parentMethod;
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}
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}
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/// <summary>
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/// Gets the parent method
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/// </summary>
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/// <returns></returns>
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internal abstract DmdMethodInfo? GetParentDefinition();
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/// <summary>
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/// Gets all generic arguments if it's a generic method
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/// </summary>
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/// <returns></returns>
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public abstract override ReadOnlyCollection<DmdType> GetGenericArguments();
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/// <summary>
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/// Gets the generic method definition
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/// </summary>
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/// <returns></returns>
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public abstract DmdMethodInfo GetGenericMethodDefinition();
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/// <summary>
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/// Creates a generic method
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/// </summary>
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/// <param name="typeArguments">Generic arguments</param>
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/// <returns></returns>
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public DmdMethodInfo MakeGenericMethod(params DmdType[] typeArguments) => MakeGenericMethod((IList<DmdType>)typeArguments);
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/// <summary>
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/// Creates a generic method
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/// </summary>
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/// <param name="typeArguments">Generic arguments</param>
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/// <returns></returns>
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public DmdMethodInfo MakeGenericMethod(params Type[] typeArguments) => MakeGenericMethod((IList<Type>)typeArguments);
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/// <summary>
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/// Creates a generic method
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/// </summary>
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/// <param name="typeArguments">Generic arguments</param>
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/// <returns></returns>
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public abstract DmdMethodInfo MakeGenericMethod(IList<DmdType> typeArguments);
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/// <summary>
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/// Creates a generic method
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/// </summary>
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/// <param name="typeArguments">Generic arguments</param>
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/// <returns></returns>
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public DmdMethodInfo MakeGenericMethod(IList<Type> typeArguments) => MakeGenericMethod(typeArguments.ToDmdTypeNoNull(AppDomain));
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/// <summary>
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/// Checks if a custom attribute is present
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/// </summary>
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/// <param name="attributeTypeFullName">Full name of the custom attribute type</param>
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/// <param name="inherit">true to check custom attributes in all base classes</param>
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/// <returns></returns>
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public sealed override bool IsDefined(string attributeTypeFullName, bool inherit) => CustomAttributesHelper.IsDefined(this, attributeTypeFullName, inherit);
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/// <summary>
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/// Checks if a custom attribute is present
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/// </summary>
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/// <param name="attributeType">Custom attribute type</param>
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/// <param name="inherit">true to check custom attributes in all base classes</param>
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/// <returns></returns>
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public sealed override bool IsDefined(DmdType? attributeType, bool inherit) => CustomAttributesHelper.IsDefined(this, attributeType, inherit);
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/// <summary>
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/// Finds a custom attribute
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/// </summary>
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/// <param name="attributeTypeFullName">Full name of the custom attribute type</param>
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/// <param name="inherit">true to check custom attributes in all base classes</param>
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/// <returns></returns>
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public sealed override DmdCustomAttributeData? FindCustomAttribute(string attributeTypeFullName, bool inherit) => CustomAttributesHelper.Find(this, attributeTypeFullName, inherit);
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/// <summary>
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/// Finds a custom attribute
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/// </summary>
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/// <param name="attributeType">Custom attribute type</param>
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/// <param name="inherit">true to check custom attributes in all base classes</param>
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/// <returns></returns>
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public sealed override DmdCustomAttributeData? FindCustomAttribute(DmdType? attributeType, bool inherit) => CustomAttributesHelper.Find(this, attributeType, inherit);
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#pragma warning disable CS1591 // Missing XML comment for publicly visible type or member
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public static bool operator ==(DmdMethodInfo? left, DmdMethodInfo? right) => DmdMemberInfoEqualityComparer.DefaultMember.Equals(left, right);
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public static bool operator !=(DmdMethodInfo? left, DmdMethodInfo? right) => !DmdMemberInfoEqualityComparer.DefaultMember.Equals(left, right);
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#pragma warning restore CS1591 // Missing XML comment for publicly visible type or member
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/// <summary>
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/// Equals()
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/// </summary>
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/// <param name="other"></param>
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/// <returns></returns>
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public bool Equals(DmdMethodInfo? other) => DmdMemberInfoEqualityComparer.DefaultMember.Equals(this, other);
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/// <summary>
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/// Equals()
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/// </summary>
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/// <param name="obj"></param>
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/// <returns></returns>
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public override bool Equals(object? obj) => Equals(obj as DmdMethodInfo);
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/// <summary>
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/// GetHashCode()
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/// </summary>
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/// <returns></returns>
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public override int GetHashCode() => DmdMemberInfoEqualityComparer.DefaultMember.GetHashCode(this);
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}
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}
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