public static Variable SetVariable(this IContext context, string variableName, SqlExpression value)
{
var currentContext = context;
while (currentContext != null)
{
if (currentContext is IVariableScope)
{
var scope = (IVariableScope)currentContext;
if (scope.HasVariable(variableName))
{
// TODO: support also in-context evaluation
var constantValue = value.EvaluateToConstant(null, context.VariableResolver());
return(scope.SetVariable(variableName, constantValue));
}
}
currentContext = currentContext.Parent;
}
currentContext = context;
while (currentContext != null)
{
if (currentContext is IVariableScope)
{
var scope = (IVariableScope)currentContext;
// TODO: support also in-context evaluation
var constantValue = value.EvaluateToConstant(null, context.VariableResolver());
return(scope.SetVariable(variableName, constantValue));
}
currentContext = currentContext.Parent;
}
// not found in the hierarchy
return(null);
}