public void FieldDeclaredInAnotherSyntaxTree()
{
const string code1 = @"
public partial class Sample
{
private static int Original = 42;
private int Field = Original;
}";
const string code2 = @"
public partial class Sample
{
public int Method()
{
return Field;
}
}";
var compilation = SolutionBuilder.Create().AddProject(AnalyzerLanguage.CSharp, createExtraEmptyFile: false)
.AddSnippet(code1)
.AddSnippet(code2)
.GetCompilation();
var tree = compilation.SyntaxTrees.Single(x => x.GetRoot().DescendantNodes().OfType <MethodDeclarationSyntax>().Any());
var returnExpression = tree.GetRoot().DescendantNodes().OfType <ReturnStatementSyntax>().Single().Expression;
var finder = new CSharpConstantValueFinder(compilation.GetSemanticModel(tree));
finder.FindConstant(returnExpression).Should().Be(42);
}
public void WrongCompilationBeingUsed()
{
const string firstSnippet = @"
public class Foo
{
private static int Original = 42;
private int Field = Original;
}";
const string secondSnippet = @"
public class Bar
{
private int Field = 42;
public int Method()
{
return Field;
}
}";
var firstCompilation = SolutionBuilder.Create().AddProject(AnalyzerLanguage.CSharp, createExtraEmptyFile: false)
.AddSnippet(firstSnippet)
.GetCompilation();
var secondCompilation = SolutionBuilder.Create().AddProject(AnalyzerLanguage.CSharp, createExtraEmptyFile: false)
.AddSnippet(secondSnippet)
.GetCompilation();
var secondCompilationReturnExpression = secondCompilation.SyntaxTrees.Single().GetRoot().DescendantNodes().OfType <ReturnStatementSyntax>().Single().Expression;
var firstCompilationFinder = new CSharpConstantValueFinder(firstCompilation.GetSemanticModel(firstCompilation.SyntaxTrees.Single()));
firstCompilationFinder.FindConstant(secondCompilationReturnExpression).Should().BeNull();
var secondCompilationFinder = new CSharpConstantValueFinder(secondCompilation.GetSemanticModel(secondCompilation.SyntaxTrees.Single()));
secondCompilationFinder.FindConstant(secondCompilationReturnExpression).Should().NotBeNull();
}
