APISampleUnitTestsCS.FAQ.GetTypeForIdentifier C# (CSharp) Метод

        public void GetTypeForIdentifier()
        {
            var tree = SyntaxTree.ParseText(@"
            class Program
            {
            public static void Main()
            {
            var i = 0; i += 1;
            }
            }");
            var mscorlib = MetadataReference.CreateAssemblyReference("mscorlib");
            var compilation = Compilation.Create("MyCompilation",
                syntaxTrees: new[] { tree }, references: new[] { mscorlib });
            var model = compilation.GetSemanticModel(tree);

            // Get IdentifierNameSyntax corresponding to the identifier 'var' above.
            IdentifierNameSyntax identifier = tree.GetRoot()
                .DescendantNodes().OfType<IdentifierNameSyntax>()
                .Single(i => i.IsVar);

            // Use GetTypeInfo() to get TypeSymbol corresponding to the identifier 'var' above.
            TypeSymbol type = model.GetTypeInfo(identifier).Type;
            Assert.AreEqual(SpecialType.System_Int32, type.SpecialType);
            Assert.AreEqual("int", type.ToDisplayString());

            // Alternately, use GetSymbolInfo() to get TypeSymbol corresponding to identifier 'var' above.
            type = (TypeSymbol)model.GetSymbolInfo(identifier).Symbol;
            Assert.AreEqual(SpecialType.System_Int32, type.SpecialType);
            Assert.AreEqual("int", type.ToDisplayString());
        }