/// <summary>
/// Fetches an object starting at the local scope and then moving up
/// the hierarchy
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
private object FindVariable(string key)
{
Hash scope = Scopes.FirstOrDefault(s => s.ContainsKey(key));
object variable = null;
if (scope == null)
{
foreach (Hash e in Environments)
{
if ((variable = LookupAndEvaluate(e, key)) != null)
{
scope = e;
break;
}
}
}
scope = scope ?? Environments.LastOrDefault() ?? Scopes.Last();
variable = variable ?? LookupAndEvaluate(scope, key);
variable = Liquidize(variable);
if (variable is IContextAware)
{
((IContextAware)variable).Context = this;
}
return(variable);
}
private void SquashInstanceAssignsWithEnvironments()
{
Dictionary <string, object> tempAssigns = new Dictionary <string, object>(Template.NamingConvention.StringComparer);
Hash lastScope = Scopes.Last();
foreach (string k in lastScope.Keys)
{
foreach (Hash env in Environments)
{
if (env.ContainsKey(k))
{
tempAssigns[k] = LookupAndEvaluate(env, k);
break;
}
}
}
foreach (string k in tempAssigns.Keys)
{
lastScope[k] = tempAssigns[k];
}
}
/// <summary>
/// Fetches an object starting at the local scope and then moving up
/// the hierarchy
/// </summary>
/// <param name="key"></param>
/// <param name="variable"></param>
/// <returns></returns>
private bool TryFindVariable(string key, out object variable)
{
bool foundVariable = false;
object foundValue = null;
Hash scope = Scopes.FirstOrDefault(s => s.ContainsKey(key));
if (scope == null)
{
foreach (Hash environment in Environments)
{
foundVariable = TryEvaluateHashOrArrayLikeObject(environment, key, out foundValue);
if (foundVariable)
{
scope = environment;
break;
}
}
if (scope == null)
{
scope = Environments.LastOrDefault() ?? Scopes.Last();
foundVariable = TryEvaluateHashOrArrayLikeObject(scope, key, out foundValue);
}
}
else
{
foundVariable = TryEvaluateHashOrArrayLikeObject(scope, key, out foundValue);
}
variable = Liquidize(foundValue);
if (variable is IContextAware contextAwareVariable)
{
contextAwareVariable.Context = this;
}
return(foundVariable);
}
public void Set(TK key, TV value, bool local) => (local ? scopes.Peek() : scopes.Last())[key] = value;