private static Func <Closure, object> Call(MethodCallExpression methodCallExpression,
ConstantExpression[] constantsExprs, ParameterExpression[] localsExprs)
{
var targetFn = Expression(methodCallExpression.Object, constantsExprs, localsExprs);
var argsFns = methodCallExpression.Arguments.Select(e => Expression(e, constantsExprs, localsExprs)).ToArray();
var invokeFn = MethodCall.TryCreate(methodCallExpression.Method);
if (invokeFn != null)
{
return(closure => { return invokeFn(closure, argsFns); });
}
else
{
return(closure =>
{
var target = targetFn(closure);
var args = new object[argsFns.Length];
for (var i = 0; i < args.Length; i++)
{
args[i] = argsFns[i](closure);
}
return methodCallExpression.Method.Invoke(target, args);
});
}
}
