//[TestCase("Method()")]
public void TryGetWalked(string expression)
{
var code = @"
namespace RoslynSandbox
{
class C
{
public readonly int field = typeof(int);
public C()
{
var local = typeof(int);
_ = local.ToString();
}
public Type CalculatedProperty => typeof(int);
public Type GetOnlyProperty { get; } = typeof(int);
public static Type Method() => typeof(int);
}
}".AssertReplace("local.ToString()", $"{expression}.ToString()");
var syntaxTree = CSharpSyntaxTree.ParseText(code);
var compilation = CSharpCompilation.Create("test", new[] { syntaxTree }, MetadataReferences.FromAttributes());
var semanticModel = compilation.GetSemanticModel(syntaxTree);
var node = ((MemberAccessExpressionSyntax)syntaxTree.FindInvocation("ToString()").Expression).Expression;
var context = new SyntaxNodeAnalysisContext(null, null, semanticModel, null, null, null, CancellationToken.None);
Assert.AreEqual(true, Type.TryGet(node, context, out var type, out var source));
Assert.AreEqual("int", type.ToDisplayString());
Assert.AreEqual("typeof(int)", source.ToString());
}
public void TryGetAssemblyLoad(string expression)
{
var code = @"
namespace RoslynSandbox
{
using System;
using System.Collections.Generic;
using System.Reflection;
class C
{
public readonly int Field;
public C(C foo)
{
var type = Assembly.Load(""mscorlib"").GetType(""System.Int32"");
}
public int Property { get; }
public class Baz<T>
{
}
public class Nested { }
}
}".AssertReplace("Assembly.Load(\"mscorlib\").GetType(\"System.Int32\")", expression);
var syntaxTree = CSharpSyntaxTree.ParseText(code);
var compilation = CSharpCompilation.Create("test", new[] { syntaxTree }, MetadataReferences.FromAttributes());
var semanticModel = compilation.GetSemanticModel(syntaxTree);
var node = syntaxTree.FindExpression(expression);
var context = new SyntaxNodeAnalysisContext(null, null, semanticModel, null, null, null, CancellationToken.None);
Assert.AreEqual(false, Type.TryGet(node, context, out _, out _));
}
public void TryGet(string expression, string expected, string expectedSource)
{
var code = @"
namespace RoslynSandbox
{
using System;
using System.Collections.Generic;
using System.Reflection;
class C
{
public readonly int Field;
public C(C foo, int? nullableInt)
{
var type = typeof(C);
}
public int Property { get; }
public class Baz<T>
{
}
public class Nested { }
}
}".AssertReplace("typeof(C)", expression);
var syntaxTree = CSharpSyntaxTree.ParseText(code);
var compilation = CSharpCompilation.Create("test", new[] { syntaxTree }, MetadataReferences.FromAttributes());
var semanticModel = compilation.GetSemanticModel(syntaxTree);
var node = syntaxTree.FindExpression(expression);
var context = new SyntaxNodeAnalysisContext(null, null, semanticModel, null, null, null, CancellationToken.None);
Assert.AreEqual(true, Type.TryGet(node, context, out var type, out var source));
Assert.AreEqual(expected, type.ToDisplayString());
Assert.AreEqual(expectedSource, source.ToString());
}
