public virtual void Evaluate(SymParserDocumentContext aContext)
{
IsEvaluated = false;
// Evaluate the expression, taking into account the current #define'd
// values. Prepares a new document with these expressions evaluated.
SymTokenDocument evalDoc = BalancedArguments.ExtractTokensAsDocument(false, true);
string expression = evalDoc.ChildrenAsString(false, true);
// Get evaluated result from evaluator
iEvaluationResult = SymExpressionEvaluator.EvaluateAsBoolean(expression);
IsEvaluated = true;
}
public override void Evaluate(SymParserDocumentContext aContext)
{
IsEvaluated = false;
if (Type == TType.ETypeIf || Type == TType.ETypeElseIf)
{
// Evaluate the expression, taking into account the current #define'd
// values. Prepares a new document with these expressions evaluated.
SymTokenDocument evalDoc = new SymTokenDocument();
EvaluateDefineNodes(BalancedArguments, evalDoc, aContext);
string expression = evalDoc.ChildrenAsString(false, true);
EvaluationResult = SymExpressionEvaluator.EvaluateAsBoolean(expression);
}
else if (Type == TType.ETypeIfdef || Type == TType.ETypeIfndef)
{
// Convert the tree to a flat expression
string symbol = BalancedArguments.ChildrenAsString(true, true);
// Check if the symbol is defined
if (Type == TType.ETypeIfdef)
{
EvaluationResult = aContext.DefineDirectory.IsDefined(symbol);
}
else if (Type == TType.ETypeIfndef)
{
EvaluationResult = !aContext.DefineDirectory.IsDefined(symbol);
}
}
else if (Type == TType.ETypeElse)
{
// Else statements always evaluate to true. We let the parent
// conditional expression node decide whether or not this item should
// 'fire'
EvaluationResult = true;
}
IsEvaluated = true;
}