public void Equals()
{
var syntaxTree = CSharpSyntaxTree.ParseText(
@"
namespace RoslynSandbox
{
using System;
public class Foo
{
public event EventHandler Bar1;
public event EventHandler Bar2;
}
}");
var compilation = CSharpCompilation.Create("test", new[] { syntaxTree });
var semanticModel = compilation.GetSemanticModel(syntaxTree);
var node1 = syntaxTree.FindEventFieldDeclaration("Bar1");
var symbol1 = semanticModel.GetDeclaredSymbol(node1.Declaration.Variables[0], CancellationToken.None);
var node2 = syntaxTree.FindEventFieldDeclaration("Bar2");
var symbol2 = semanticModel.GetDeclaredSymbol(node2.Declaration.Variables[0], CancellationToken.None);
Assert.AreEqual(true, SymbolComparer.Equals(symbol1, symbol1));
Assert.AreEqual(false, SymbolComparer.Equals(symbol1, symbol2));
Assert.AreEqual(true, EventSymbolComparer.Equals((IEventSymbol)symbol1, (IEventSymbol)symbol1));
Assert.AreEqual(false, EventSymbolComparer.Equals((IEventSymbol)symbol1, (IEventSymbol)symbol2));
Assert.AreEqual(SymbolComparer.Default.GetHashCode(symbol1), EventSymbolComparer.Default.GetHashCode((IEventSymbol)symbol1));
Assert.AreNotEqual(SymbolComparer.Default.GetHashCode(symbol1), EventSymbolComparer.Default.GetHashCode((IEventSymbol)symbol2));
}
public static void Equivalent()
{
var syntaxTree = CSharpSyntaxTree.ParseText(
@"
namespace N
{
using System;
public class C
{
public event EventHandler E1;
public event EventHandler E2;
}
}");
var compilation = CSharpCompilation.Create("test", new[] { syntaxTree });
var semanticModel = compilation.GetSemanticModel(syntaxTree);
var node1 = syntaxTree.FindEventFieldDeclaration("E1");
var symbol1 = semanticModel.GetDeclaredSymbol(node1.Declaration.Variables[0], CancellationToken.None);
var node2 = syntaxTree.FindEventFieldDeclaration("E2");
var symbol2 = semanticModel.GetDeclaredSymbol(node2.Declaration.Variables[0], CancellationToken.None);
Assert.AreEqual(true, SymbolComparer.Equivalent(symbol1, symbol1));
Assert.AreEqual(false, SymbolComparer.Equivalent(symbol1, symbol2));
Assert.AreEqual(true, EventSymbolComparer.Equivalent((IEventSymbol)symbol1, (IEventSymbol)symbol1));
Assert.AreEqual(false, EventSymbolComparer.Equivalent((IEventSymbol)symbol1, (IEventSymbol)symbol2));
}
