continuation | A module for handling continuations in Python | Functional Programming library

If you must do this, use detached-HEAD mode. Have users check out origin/latest rather than creating a branch.

(It's probably wiser to just make a new release-candidate tag. See fredrik's comment.)

Git "dislikes it" when branch names "move backwards".¹

What I mean by this is that a branch name is expected to "move forwards", and what I mean by that is ... well, consider how Git branch names work. The purpose of a branch name is to locate the last commit that we call "part of the branch". It is the commits themselves that actually matter; the branch name just finds the last one.

That is, we might start with a series of, say, eight total commits, which we label with the name master or main:

You have a reasonable-looking sequence of if tests (though using cond instead would be more idiomatic Scheme). But the values you return do not generally look correct.

The first problem I see is in your first if clause. If both trees are empty, you return '(). But according to the spec, you should be calling the succ function with that result. This may look unimportant if you use id as your continuation, but note that each recursive step builds up a more detailed succ continuation, so in general succ may be a quite impactful function.

The second if is also a problem. Again you return '(), when you are supposed to return the first conflicting subtrees. It's not clear to me what that means, but it would be reasonable to pass a pair of tree1 and tree2 to fail.

The third and fourth clause look fine. You call succ with a pair of the two leaves, as expected.

The recursive call is clearly wrong: you have mis-parenthesized calls to cons, and your lambda variable is named X but you refer to it as x. The series of cons calls doesn't really look right either, but you can experiment with that once your more pressing syntactic issues are resolved and your base cases work properly.

Lastly, you are doing a lot of low-level work with cons, car, '(), and so on. You should be using the abstract functions provided to you, such as add-subtree and (make-tree), instead of using the low-level primitives they are built on.

For the same reason you can't have whitespace after the backslash. It simplifies the parsing, as it can simply remove any backslash-newline pairs before doing any more parsing. If there were spaces or comments after the backslash, there's no backslash-newline sequence to remove.

There are two issues, first of all, Body only implements From<&'static str> but the given &str is bound to the lifetime on the MutexGuard, therefore the Body::from call fails with a lifetime error. You can work around this via foo.clone().

The second issue is about the multiple nested scopes which would require additional clone()s on the Arc> and move on the service_fn closure. The following compiles:

The first error in your error message is that Sync is not implemented for RefCell. This is by design, as stated by Sync's rustdoc:

Types that are not Sync are those that have “interior mutability” in a non-thread-safe form, such as Cell and RefCell. These types allow for mutation of their contents even through an immutable, shared reference. For example the set method on Cell takes &self, so it requires only a shared reference &Cell. The method performs no synchronization, thus Cell cannot be Sync.

Thus it's not safe to share RefCells between threads, because you can cause a data race through a regular, shared reference.

But what if you wrap it in Arc ? Well, the rustdoc is quite clear again:

Arc will implement Send and Sync as long as the T implements Send and Sync. Why can’t you put a non-thread-safe type T in an Arc to make it thread-safe? This may be a bit counter-intuitive at first: after all, isn’t the point of Arc thread safety? The key is this: Arc makes it thread safe to have multiple ownership of the same data, but it doesn’t add thread safety to its data. Consider Arc. RefCell isn’t Sync, and if Arc was always Send, Arc would be as well. But then we’d have a problem: RefCell is not thread safe; it keeps track of the borrowing count using non-atomic operations.

In the end, this means that you may need to pair Arc with some sort of std::sync type, usually Mutex.

Arc will not be Sync unless T is Sync because of the same reason. Given that, probably you should use std/tokio Mutex instead of RefCell

This has been accepted as a bug in flutter. Pl follow for progress here: https://github.com/flutter/flutter/issues/83711

Note for other developers facing same issue. To overcome the mentioned problem, I changed my design layout. Instead of tabbar view I used Navigationrail widget. This solved my problem. NavigationRail widget allowed me to attach primary scroll controller to multiple widgets without giving me exception: "ScrollController attached to multiple scroll views." Sample code.

You can use hierarchical query for this:

The problem is because the PHP loop which creates the div elements is in the wrong place. You repeat the entire .outer structure multiple times with each containing a single .banner-container.

You should instead loop inside the single .outer and create multiple .banner-container elements within it, like this:

You need to switch to new tab first then you can click on Print using that Id that you have been trying.

Switch to new windows like this :