private List <string> EvalExpression(string exp)
{
exp = exp.TrimExpression();
var(result, error) = EvalByExpressionEngine(exp, CurrentTarget().Scope);
if (error != null)
{
throw new Exception(LGErrors.ErrorExpression(exp, error));
}
if (result == null)
{
throw new Exception(LGErrors.NullExpression(exp));
}
if (result is IList &&
result.GetType().IsGenericType&&
result.GetType().GetGenericTypeDefinition().IsAssignableFrom(typeof(List <>)))
{
return((List <string>)result);
}
return(new List <string>()
{
result.ToString()
});
}
private List <string> EvalExpression(string exp, ParserRuleContext context, string errorPrefix = "")
{
exp = exp.TrimExpression();
var(result, error) = EvalByExpressionEngine(exp, CurrentTarget().Scope);
if (error != null || (result == null && strictMode))
{
var errorMsg = string.Empty;
var childErrorMsg = string.Empty;
if (error != null)
{
childErrorMsg += error;
}
else if (result == null)
{
childErrorMsg += LGErrors.NullExpression(exp);
}
if (context != null)
{
errorMsg += LGErrors.ErrorExpression(context.GetText(), CurrentTarget().TemplateName, errorPrefix);
}
if (evaluationTargetStack.Count > 0)
{
evaluationTargetStack.Pop();
}
throw new Exception(childErrorMsg + errorMsg);
}
else if (result == null && !strictMode)
{
result = "null";
}
if (result is IList &&
result.GetType().IsGenericType&&
result.GetType().GetGenericTypeDefinition().IsAssignableFrom(typeof(List <>)))
{
return((List <string>)result);
}
return(new List <string>()
{
result.ToString()
});
}
private object EvalExpression(string exp)
{
exp = exp.TrimExpression();
var(result, error) = EvalByExpressionEngine(exp, CurrentTarget().Scope);
if (error != null)
{
throw new Exception(LGErrors.ErrorExpression(exp, error));
}
if (result == null)
{
throw new Exception(LGErrors.NullExpression(exp));
}
return(result);
}
private bool EvalExpressionInCondition(string exp, ParserRuleContext context = null, string errorPrefix = "")
{
exp = exp.TrimExpression();
var(result, error) = EvalByExpressionEngine(exp, CurrentTarget().Scope);
if (strictMode && (error != null || result == null))
{
var errorMsg = string.Empty;
var childErrorMsg = string.Empty;
if (error != null)
{
childErrorMsg += error;
}
else if (result == null)
{
childErrorMsg += LGErrors.NullExpression(exp);
}
if (context != null)
{
errorMsg += LGErrors.ErrorExpression(context.GetText(), CurrentTarget().TemplateName, errorPrefix);
}
if (evaluationTargetStack.Count > 0)
{
evaluationTargetStack.Pop();
}
throw new Exception(childErrorMsg + errorMsg);
}
else if (error != null ||
result == null ||
(result is bool r1 && r1 == false) ||
(result is int r2 && r2 == 0))
{
return(false);
}
return(true);
}
private object EvalExpression(string exp, ParserRuleContext context = null, string errorPrefix = "")
{
exp = exp.TrimExpression();
var(result, error) = EvalByExpressionEngine(exp, CurrentTarget().Scope);
if (error != null || (result == null && strictMode))
{
var errorMsg = string.Empty;
var childErrorMsg = string.Empty;
if (error != null)
{
childErrorMsg += error;
}
else if (result == null)
{
childErrorMsg += LGErrors.NullExpression(exp);
}
if (context != null)
{
errorMsg += LGErrors.ErrorExpression(context.GetText(), CurrentTarget().TemplateName, errorPrefix);
}
if (evaluationTargetStack.Count > 0)
{
evaluationTargetStack.Pop();
}
throw new Exception(childErrorMsg + errorMsg);
}
else if (result == null && !strictMode)
{
result = "null";
}
return(result);
}