C# AssemblyIdentity.Equals方法代码示例

        public void Equality()
        {
            var id1 = new AssemblyIdentity("Foo", new Version(1, 0, 0, 0), "", RoPublicKey1, hasPublicKey: true, isRetargetable: false);
            var id11 = new AssemblyIdentity("Foo", new Version(1, 0, 0, 0), "", RoPublicKey1, hasPublicKey: true, isRetargetable: false);
            var id2 = new AssemblyIdentity("Foo", new Version(1, 0, 0, 0), "", RoPublicKeyToken1, hasPublicKey: false, isRetargetable: false);
            var id22 = new AssemblyIdentity("Foo", new Version(1, 0, 0, 0), "", RoPublicKeyToken1, hasPublicKey: false, isRetargetable: false);

            var id3 = new AssemblyIdentity("Foo!", new Version(1, 0, 0, 0), "", RoPublicKeyToken1, hasPublicKey: false, isRetargetable: false);
            var id4 = new AssemblyIdentity("Foo", new Version(1, 0, 1, 0), "", RoPublicKeyToken1, hasPublicKey: false, isRetargetable: false);
            var id5 = new AssemblyIdentity("Foo", new Version(1, 0, 0, 0), "en-US", RoPublicKeyToken1, hasPublicKey: false, isRetargetable: false);
            var id6 = new AssemblyIdentity("Foo", new Version(1, 0, 0, 0), "", default(ImmutableArray<byte>), hasPublicKey: false, isRetargetable: false);
            var id7 = new AssemblyIdentity("Foo", new Version(1, 0, 0, 0), "", RoPublicKeyToken1, hasPublicKey: true, isRetargetable: false);
            var id8 = new AssemblyIdentity("Foo", new Version(1, 0, 0, 0), "", RoPublicKey1, hasPublicKey: true, isRetargetable: true);

            var win1 = new AssemblyIdentity("Foo", new Version(1, 0, 0, 0), "", RoPublicKey1, hasPublicKey: true, isRetargetable: false, contentType: AssemblyContentType.WindowsRuntime);
            var win2 = new AssemblyIdentity("Bar", new Version(1, 0, 0, 0), "", RoPublicKey1, hasPublicKey: true, isRetargetable: false, contentType: AssemblyContentType.WindowsRuntime);
            var win3 = new AssemblyIdentity("Foo", new Version(1, 0, 0, 0), "", RoPublicKey1, hasPublicKey: true, isRetargetable: false, contentType: AssemblyContentType.WindowsRuntime);

            Assert.True(id1.Equals(id1));
            Assert.True(id1.Equals(id2));
            Assert.True(id2.Equals(id1));
            Assert.True(id1.Equals(id11));
            Assert.True(id11.Equals(id1));
            Assert.True(id2.Equals(id22));
            Assert.True(id22.Equals(id2));

            Assert.False(id1.Equals(id3));
            Assert.False(id1.Equals(id4));
            Assert.False(id1.Equals(id5));
            Assert.False(id1.Equals(id6));
            Assert.False(id1.Equals(id7));
            Assert.False(id1.Equals(id8));

            Assert.Equal((object)id1, id1);
            Assert.NotNull(id1);
            Assert.False(id2.Equals((AssemblyIdentity)null));

            Assert.Equal(id1.GetHashCode(), id2.GetHashCode());

            Assert.False(win1.Equals(win2));
            Assert.False(win1.Equals(id1));
            Assert.True(win1.Equals(win3));

            Assert.Equal(win1.GetHashCode(), win3.GetHashCode());
        }

        public void Equality_InvariantCulture()
        {
            var neutral1 = new AssemblyIdentity("Foo", new Version(1, 0, 0, 0), "NEUtral", RoPublicKeyToken1, hasPublicKey: false, isRetargetable: false);
            var neutral2 = new AssemblyIdentity("Foo", new Version(1, 0, 0, 0), null, RoPublicKeyToken1, hasPublicKey: false, isRetargetable: false);
            var neutral3 = new AssemblyIdentity("Foo", new Version(1, 0, 0, 0), "neutral", RoPublicKeyToken1, hasPublicKey: false, isRetargetable: false);
            var invariant = new AssemblyIdentity("Foo", new Version(1, 0, 0, 0), "", RoPublicKeyToken1, hasPublicKey: false, isRetargetable: false);

            Assert.True(neutral1.Equals(invariant));
            Assert.True(neutral2.Equals(invariant));
            Assert.True(neutral3.Equals(invariant));
        }

        public static async Task<CodeAction> CreateAsync(Project project, AssemblyIdentity missingAssemblyIdentity, CancellationToken cancellationToken)
        {
            var dependencyGraph = project.Solution.GetProjectDependencyGraph();

            // We want to find a project that generates this assembly, if one so exists. We therefore 
            // search all projects that our project with an error depends on. We want to do this for
            // complicated and evil scenarios like this one:
            //
            //     C -> B -> A
            //
            //     A'
            //
            // Where, for some insane reason, A and A' are two projects that both emit an assembly 
            // by the same name. So imagine we are using a type in B from C, and we are missing a 
            // reference to A.dll. Both A and A' are candidates, but we know we can throw out A'
            // since whatever type from B we are using that's causing the error, we know that type 
            // isn't referencing A'. Put another way: this code action adds a reference, but should 
            // never change the transitive closure of project references that C has.
            //
            // Doing this filtering also means we get to check less projects (good), and ensures that
            // whatever project reference we end up adding won't add a circularity (also good.)
            foreach (var candidateProjectId in dependencyGraph.GetProjectsThatThisProjectTransitivelyDependsOn(project.Id))
            {
                var candidateProject = project.Solution.GetProject(candidateProjectId);
                if (string.Equals(missingAssemblyIdentity.Name, candidateProject.AssemblyName, StringComparison.OrdinalIgnoreCase))
                {
                    // The name matches, so let's see if the full identities are equal. 
                    var compilation = await candidateProject.GetCompilationAsync(cancellationToken).ConfigureAwait(false);
                    if (missingAssemblyIdentity.Equals(compilation.Assembly.Identity))
                    {
                        // It matches, so just add a reference to this
                        return new AddMissingReferenceCodeAction(project,
                            string.Format(FeaturesResources.Add_project_reference_to_0, candidateProject.Name),
                            new ProjectReference(candidateProjectId), missingAssemblyIdentity);
                    }
                }
            }

            // No matching project, so metadata reference
            var description = string.Format(FeaturesResources.Add_reference_to_0, missingAssemblyIdentity.GetDisplayName());
            return new AddMissingReferenceCodeAction(project, description, null, missingAssemblyIdentity);
        }

        private Assembly TryGetAssemblyLoadedFromPath(AssemblyIdentity identity, string directory)
        {
            string pathWithoutExtension = Path.Combine(directory, identity.Name);

            foreach (var extension in RuntimeMetadataReferenceResolver.AssemblyExtensions)
            {
                AssemblyAndLocation assemblyAndLocation;
                if (_assembliesLoadedFromLocationByFullPath.TryGetValue(pathWithoutExtension + extension, out assemblyAndLocation) &&
                    identity.Equals(AssemblyIdentity.FromAssemblyDefinition(assemblyAndLocation.Assembly)))
                {
                    return assemblyAndLocation.Assembly;
                }
            }

            return null;
        }