public static EvaluationContext.EvaluationInfo TryEvaluateExpression(this IQueryElement expr, EvaluationContext context)
{
if (!context.TryGetValue(expr, out var info))
{
var canBeEvaluated =
TryEvaluateExpressionInternal(expr, context, out var result, out var errorMessage);
info = new EvaluationContext.EvaluationInfo(canBeEvaluated, result, errorMessage);
context.Register(expr, info);
return(info);
}
return(info !);
}
public static bool TryEvaluateExpression(this IQueryElement expr, EvaluationContext context, out object?result,
out string?errorMessage)
{
if (!context.TryGetValue(expr, out var info))
{
var canBeEvaluated = TryEvaluateExpressionInternal(expr, context, out result, out errorMessage);
info = new EvaluationContext.EvaluationInfo(canBeEvaluated, result, errorMessage);
context.Register(expr, info);
return(info.IsEvaluated);
}
result = info !.Value;
errorMessage = info.ErrorMessage;
return(info.IsEvaluated);
}
