/// <summary>
/// Takes an expression tree and finds and evaluates all its evaluatable subtrees.
/// </summary>
public static Expression EvaluateIndependentSubtrees(
Expression expressionTree,
PreTransformationParameters preTransformationParameters)
{
var partialEvaluationInfo = EvaluatableTreeFindingExpressionVisitor.Analyze(
expressionTree,
preTransformationParameters.EvaluatableExpressionFilter);
var visitor = new NhPartialEvaluatingExpressionVisitor(partialEvaluationInfo, preTransformationParameters);
return(visitor.Visit(expressionTree));
}
public static PartialEvaluationInfo Analyze(Expression expressionTree, IEvaluatableExpressionFilter evaluatableExpressionFilter)
{
if (expressionTree == null)
{
throw new ArgumentNullException(nameof(expressionTree));
}
if (evaluatableExpressionFilter == null)
{
throw new ArgumentNullException(nameof(evaluatableExpressionFilter));
}
var visitor = new EvaluatableTreeFindingExpressionVisitor(evaluatableExpressionFilter);
visitor.Visit(expressionTree);
return(visitor.PartialEvaluationInfo);
}