public static void Inherited()
{
var syntaxTree = CSharpSyntaxTree.ParseText(
@"
namespace N
{
public class C1
{
protected int F;
}
public class C2 : C1
{
public C2()
{
var temp = this.F;
}
}
}");
var compilation = CSharpCompilation.Create("test", new[] { syntaxTree });
var semanticModel = compilation.GetSemanticModel(syntaxTree);
var node1 = syntaxTree.FindFieldDeclaration("F");
var symbol1 = semanticModel.GetDeclaredSymbol(node1.Declaration.Variables[0], CancellationToken.None);
var node2 = syntaxTree.FindMemberAccessExpression("this.F");
var symbol2 = semanticModel.GetSymbolInfo(node2, CancellationToken.None).Symbol;
Assert.AreEqual(true, SymbolComparer.Equal(symbol1, symbol1));
Assert.AreEqual(true, SymbolComparer.Equal(symbol1, symbol2));
Assert.AreEqual(true, FieldSymbolComparer.Equal((IFieldSymbol)symbol1, (IFieldSymbol)symbol1));
Assert.AreEqual(true, FieldSymbolComparer.Equal((IFieldSymbol)symbol1, (IFieldSymbol)symbol2));
Assert.AreEqual(SymbolComparer.Default.GetHashCode(symbol1), FieldSymbolComparer.Default.GetHashCode((IFieldSymbol)symbol1));
Assert.AreEqual(SymbolComparer.Default.GetHashCode(symbol1), FieldSymbolComparer.Default.GetHashCode((IFieldSymbol)symbol2));
}
public static void Equal()
{
var syntaxTree = CSharpSyntaxTree.ParseText(
@"
namespace N
{
public class C
{
private int f1;
private int f2;
}
}");
var compilation = CSharpCompilation.Create("test", new[] { syntaxTree });
var semanticModel = compilation.GetSemanticModel(syntaxTree);
var node1 = syntaxTree.FindFieldDeclaration("f1");
var symbol1 = semanticModel.GetDeclaredSymbol(node1.Declaration.Variables[0], CancellationToken.None);
var node2 = syntaxTree.FindFieldDeclaration("f2");
var symbol2 = semanticModel.GetDeclaredSymbol(node2.Declaration.Variables[0], CancellationToken.None);
Assert.AreEqual(true, SymbolComparer.Equal(symbol1, symbol1));
Assert.AreEqual(false, SymbolComparer.Equal(symbol1, symbol2));
Assert.AreEqual(true, FieldSymbolComparer.Equal((IFieldSymbol)symbol1, (IFieldSymbol)symbol1));
Assert.AreEqual(false, FieldSymbolComparer.Equal((IFieldSymbol)symbol1, (IFieldSymbol)symbol2));
Assert.AreEqual(SymbolComparer.Default.GetHashCode(symbol1), FieldSymbolComparer.Default.GetHashCode((IFieldSymbol)symbol1));
Assert.AreNotEqual(SymbolComparer.Default.GetHashCode(symbol1), FieldSymbolComparer.Default.GetHashCode((IFieldSymbol)symbol2));
}