我在解决方案中有 2 个测试项目。
第一个项目(“VDoc”)声明 VDocQuery 类型。
第二个项目(“VDocQueryTest”)调用 VDocQuery 构造函数。
我得到 2 个 VDocQuery 的 ITypeSymbol(每个项目一个),比较它,但得到错误的结果。
步骤:
1. 获取第一个 ITypeSymbol(来自使用 SemanticModel.LookupNamespacesAndTypes() 方法的 VDoc 项目)。
2. 从 VDocQueryTest 项目中获取第二个 ITypeSymbol(来自 ObjectCreationExpressionSyntax.GetTypeInfo().Type)
3. 将其与 ITypeSymbol.Equals(ITypeSymbol) 进行比较。
我期待真实的结果,但得到错误的结果。
问题:如何在一个解决方案中正确比较来自不同项目的 ITypeSymbol?
代码示例:
class Program
{
static void Main(string[] args)
{
string solutionPath = @"..\..\..\StaticAnalysis.sln";
MSBuildWorkspace workspace = MSBuildWorkspace.Create();
Solution solution = workspace.OpenSolutionAsync(solutionPath).Result;
var vdocProject = FindProjectByName("VDoc", solution);
SemanticModel semanticModel = vdocProject.Documents.First().GetSemanticModelAsync().Result;
var nsVDocQueryFunctionalTest = (INamespaceOrTypeSymbol)semanticModel.LookupNamespacesAndTypes(0, null, "VDocQueryFunctionalTest").First();
var tVDocQuery = (ITypeSymbol)semanticModel.LookupNamespacesAndTypes(0, nsVDocQueryFunctionalTest, "VDocQuery").First();
TypeInfo ti = GetFromVDocRef(solution);
bool result1 = ti.Type.Equals(tVDocQuery); // false, expected = true?
//these 2 lines added after Jason Malinowski answer
var sVDocQuerySource = SymbolFinder.FindSourceDefinitionAsync(ti.Type, solution).Result;
bool result2 = sVDocQuerySource.Equals(tVDocQuery); // false, expected = true?
//this line solved the problem, thanks to @Tamas
bool result3 = ti.Type.DeclaringSyntaxReferences.FirstOrDefault()?.Equals(tVDocQuery.DeclaringSyntaxReferences.FirstOrDefault()) ?? false;
}
private static TypeInfo GetFromVDocRef(Solution solution)
{
var vdocQueryTestProject = FindProjectByName("VDocQueryTest", solution);
var vdocQueryTestProjectSemanticModel = vdocQueryTestProject.Documents.First().GetSemanticModelAsync().Result;
var compilationUnit = (CompilationUnitSyntax)vdocQueryTestProject.Documents.First().GetSyntaxRootAsync().Result;
var ns = (NamespaceDeclarationSyntax)compilationUnit.Members[0];
var cls = (ClassDeclarationSyntax)ns.Members[0];
var method = (MethodDeclarationSyntax)cls.Members[0];
var stat = (ExpressionStatementSyntax)method.Body.Statements[0];
var newExpr = (ObjectCreationExpressionSyntax)stat.Expression;
var ti = vdocQueryTestProjectSemanticModel.GetTypeInfo(newExpr);
return ti;
}
static Project FindProjectByName(string projectName, Solution solution)
{
var project = solution.Projects.SingleOrDefault(p => p.Name == projectName);
return project;
}
}
VDocQuery.cs:
using System.Collections.Generic;
namespace VDocQueryFunctionalTest
{
public class VDocQuery
{
public VDocQuery()
{
}
public void AddFields(string docType, params string[] fields)
{
}
public List<VDoc> Execute()
{
return null;
}
}
}
VDocQueryUse.cs:
using VDocQueryFunctionalTest;
namespace VDocQueryTest
{
static class VDocQueryUse
{
public static void VDocQueryUseTest()
{
new VDocQuery();
}
}
}