private ExpressionRewriter(ExpressionRewriter parent)
{
if (parent == null)
{
throw new ArgumentNullException("parent");
}
this.subst = new Dictionary<Expression, Expression>(parent.subst);
this.inline = parent.inline;
}
public Expression AutoInline(InvocationExpression expression)
{
this.isLocked = true;
if (expression == null)
{
throw new ArgumentNullException("expression");
}
var lambda = (LambdaExpression)expression.Expression;
var childScope = new ExpressionRewriter(this);
var lambdaParams = lambda.Parameters;
var invokeArgs = expression.Arguments;
if (lambdaParams.Count != invokeArgs.Count)
{
throw new InvalidOperationException("Lambda/invoke mismatch");
}
for (var i = 0; i < lambdaParams.Count; i++)
{
childScope.Substitute(lambdaParams[i], invokeArgs[i]);
}
return childScope.Apply(lambda.Body);
}