/// <summary>
/// Inherits the variables from the parent grammar
/// </summary>
/// <param name="parent">The parent's grammar</param>
/// <param name="doClone">Clone the symbols</param>
private void InheritVariables(Grammar parent, bool doClone)
{
foreach (Variable variable in parent.Variables)
{
if (doClone)
{
Variable clone = new Variable(variable.ID, variable.Name);
variables.Add(clone.Name, clone);
}
else
{
AddVariable(variable.Name);
}
}
foreach (Variable variable in parent.Variables)
{
Variable clone = variables[variable.Name];
foreach (Rule rule in variable.Rules)
{
List <RuleBodyElement> parts = new List <RuleBodyElement>();
for (int i = 0; i != rule.Body.Length; i++)
{
RuleBodyElement part = rule.Body[i];
Symbol symbol = null;
if (part.Symbol is Variable)
{
symbol = variables[part.Symbol.Name];
}
else if (part.Symbol is Terminal)
{
symbol = terminalsByName[part.Symbol.Name];
}
else if (part.Symbol is Virtual)
{
symbol = virtuals[part.Symbol.Name];
}
else if (part.Symbol is Action)
{
symbol = actions[part.Symbol.Name];
}
parts.Add(new RuleBodyElement(symbol, part.Action));
}
clone.AddRule(new Rule(clone, rule.HeadAction, new RuleBody(parts), ResolveContext(parent.contexts[rule.Context])));
}
}
}
/// <summary>
/// Determines whether the specified <see cref="System.Object"/> is equal to the current <see cref="Hime.SDK.Grammars.RuleBodyElement"/>.
/// </summary>
/// <param name='obj'>
/// The <see cref="System.Object"/> to compare with the current <see cref="Hime.SDK.Grammars.RuleBodyElement"/>.
/// </param>
/// <returns>
/// <c>true</c> if the specified <see cref="System.Object"/> is equal to the current
/// <see cref="Hime.SDK.Grammars.RuleBodyElement"/>; otherwise, <c>false</c>.
/// </returns>
public override bool Equals(object obj)
{
RuleBodyElement temp = obj as RuleBodyElement;
return(temp != null && symbol.Equals(temp.symbol) && Action == temp.Action);
}
