/// <summary>
/// Checks for errors before applying a rule.
/// </summary>
/// <param name="node">The node instance to check.</param>
/// <param name="dataList">Optional data collected during inspection of sources.</param>
/// <param name="data">Private data to give to Apply() upon return.</param>
/// <returns>True if an error occured.</returns>
public override bool CheckConsistency(IEqualityExpression node, IDictionary <ISourceTemplate, object> dataList, out object data)
{
data = null;
bool Success = true;
Success &= EqualityExpression.ResolveCompilerReferences(node, ErrorList, out IResultType ResolvedResult, out IResultException ResolvedException, out ISealableList <IExpression> ConstantSourceList, out ILanguageConstant ExpressionConstant);
if (Success)
{
data = new Tuple <IResultType, IResultException, ISealableList <IExpression>, ILanguageConstant>(ResolvedResult, ResolvedException, ConstantSourceList, ExpressionConstant);
}
return(Success);
}