public void VariableFinderVisitor_Can_Find_Variable_That_Is_Negated()
{
// Verifies fix for bug that caused negated expression
// to be skipped in expression visitor.
var expression = MathExpression.Parse("10+(-x)");
var context = new MathExpressionContext();
var visitor = new VariableFinderVisitor();
Assert.IsTrue(visitor.HasVariableDefined(expression, context, "x"));
}
public NamingHelper(RefactoringContext context)
{
this.context = context;
if (usedVariableNames == null) {
var visitor = new VariableFinderVisitor();
var astNode = context.GetNode<Statement>();
astNode.AcceptVisitor(visitor);
usedVariableNames = visitor.VariableNames;
}
}
public NamingHelper(RefactoringContext context)
{
this.context = context;
if (usedVariableNames == null)
{
var visitor = new VariableFinderVisitor();
var astNode = context.GetNode <Statement>();
astNode.AcceptVisitor(visitor);
usedVariableNames = visitor.VariableNames;
}
}
public MathExpressionContext()
{
_lookup = new Dictionary<string, MathExpression>(StringComparer.OrdinalIgnoreCase);
_variableFinder = new VariableFinderVisitor();
_lock = new ReaderWriterLockSlim(LockRecursionPolicy.SupportsRecursion);
}
