wire | A rustic tcp serialization abstraction | Serialization library
kandi X-RAY | wire Summary
kandi X-RAY | wire Summary
A rustic tcp + serialization abstraction.
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QUESTION
While implementing a custom tuple
(here), I found there is a wired swap()
function that takes const
parameters (cppreference):
ANSWER
Answered 2022-Apr-07 at 13:59You have missed the footnote about when that overload is available:
This overload participates in overload resolution only if
std::is_swappable_v
istrue
for all i from 0 tosizeof...(Types)
.
If you have a type const_swappable
such that swap(const const_swappable &, const const_swappable &)
is sensible, then there is no reason why you shouldn't be able to swap const std::tuple &
.
QUESTION
I have an APIView (DRF), where I set the user is_active field to False instead of deleting him, everything works as expected, but I have a wired behavior when I try to make a test case for the view, I try to test if the field 'is_active' is False after calling the ApiView but it remains 'True' if change the code a little bit and call user.objects.get() with the same user email after calling the ApiView, the new instance field is_active is False.
I've never encountered this behavior, can someone explain the reason behind it? thanks!
this test passes:
...ANSWER
Answered 2022-Mar-22 at 08:21In your test, you are calling a 'remote' request, the changes are in 'remote':
QUESTION
I want to play some audio with volume lvl adjusted to ear aka. "phone call mode". For this purpose, I'm using well-known and commonly advised
...ANSWER
Answered 2022-Feb-11 at 19:31found some answers to my own question, sharing with community
6-sec auto-switch mode is a new feature in Android 12, which works only if (mode == AudioSystem.MODE_IN_COMMUNICATION)
(check out flow related to MSG_CHECK_MODE_FOR_UID
flag). This should help for MODE_IN_COMMUNICATION
set to AudioManager
and left after app exit, this was messing with global/system-level audio routing. There is also a brand new AudioManager.OnModeChangedListener
called when mode is (auto-)changing
and setSpeakerphoneOn
turns out to be deprecated, even if this isn't marked in doc... we have new method setCommunicationDevice(AudioDeviceInfo)
and in its description we have info about startBluetoothSco()
, stopBluetoothSco()
and setSpeakerphoneOn(boolean)
deprecation. I'm using all three methods and now on Android 12 I'm iterating through getAvailableCommunicationDevices()
, comparing type of every item and if desired type found I'm calling setCommunicationDevice(targetAudioDeviceInfo)
. I'm NOT switching audio mode at all now, staying on MODE_NORMAL
. All my streams are AudioManager.STREAM_VOICE_CALL
type (where applicable)
for built-in earpiece audio playback aka. "ear-friendly mode" we were using
QUESTION
I have a simple Spring boot app with logbook-spring-boot-starter
dependency of the logbook library.
The document says for ignoring health check request, wire up the logbook like this:
...ANSWER
Answered 2022-Feb-07 at 21:28It is really simple. Just create a bean of the Logbook
type in a @Configuration
class:
QUESTION
Enums were introduced to PHP very recently. I'm trying them out in a laravel project. I've got my enum class here:
...ANSWER
Answered 2021-Dec-29 at 18:38I was able to reproduce this error; in my case the stack trace led back to the barryvdh/laravel-debugbar
package, not sure if this is the same for you. I was able to resolve it by changing the enum to a backed enum.
I'd recommend making this change regardless, as I expect in a lot of cases strings will be easier to work with than enum instances. (Though TBH this looks like trying to use a new feature just because it's there, not because it makes sense.)
QUESTION
this is my original string:
...ANSWER
Answered 2021-Dec-22 at 08:35This could be simply done in awk
program, with your shown samples, please try following.
QUESTION
I am running up against the word fuse
in the Rust ecosystem:
slog::Fuse
to promote errors to panics.FutureExt::Fuse
"Fuse a future such that poll will never again be called once it has completed."
I'm aware of Linux's FUSE, a userspace filesystem. A fuse is also an electrical component that goes into open circuit state when too much current goes through the fuse. In hardware "fusing" describes baking configuration into the silicon by (historically) blowing circuits in the silicon through over-current in specific wires of the silicon.
What does "fuse" generally mean in Rust and what is its etymology?
...ANSWER
Answered 2021-Dec-15 at 19:39The earliest use I could find of "fuse" in the Rust ecosystem is Iterator::fuse
, which was added to the standard library during the pre-1.0 days. The initial documentation for Iterator::fuse
said:
QUESTION
I have been stuck on this issue for a week and don't seem to be getting anywhere. I am trying to copy some methods and fields from one class to another.
I have two phases that are involved in this. The first phase scans the code, finds the method defs that need to copied, and save the corresponding Tree
The second phase inserts this tree where needs to go. In order to simplify this question, let's forget about the copying and say that I am trying to insert a simple method def hello(): String = "hello"
to the body of some class
The plugin runs after the typer
(because I need the package information), and I am having a problem with injecting the type information properly. This results in an assertion exception in the later type checking
stage (Full stacktrace at the bottom)
I asked about this in the metaprogramming
discord and was pointed to the following resources.
Scala compiler plugin to rewrite method calls
https://contributors.scala-lang.org/t/scala-compiler-plugin-naming-issues-after-typer/2835
But neither yielded successful results unfortunately. I am assuming I have to take special care because the return type is a primitive (?), as the type gets interfaced through Predef
First Attempt:
Results in the error at the very end
...ANSWER
Answered 2021-Nov-19 at 16:53Posting an answer so the question can be closed. It took me a while but I think I figured it out.
Thanks to @SethTisue for pointing me to TwoTails
. I was able to correctly synthesize a method using the part of the code in that repo. However the bottom line is doing something like this after the typer is not trivially possible. Here is the reason why:
Say you are trying to synthesize and append a method m
to a class C
after the typer. The problem is if you are synthesizing this method, you will eventually invoke it somewhere new C().m
. The membership is resolved during the typer, so the typer will never complete and throw an error method m is not a member of C
. So,
If you don't require the package information to achieve this, you should do this after the parser
If you need the package information, this gets very tricky. You need to add a few new phases after the parser. I will omit the code because it is very lengthy but here is the gist of it.
Phase 1: Accumulate the list of Class Names you will be appending to and their existing method, skip if it's a pre-known class
Phase 2: Go through the code and accumulate a list of all the symbols that correspond to an instance of this class.
ValDef
and any parameters to theDefDef
. If you have implemented Hindley Milner you will immediately identify the problem that will a way to distinguish similarly named symbols in different scopes. There is a lot of existing literature on this that you can read, I am skipping the details.Phase 3: Go through the code and accumulate a list of method names that are invoked on
C
but doesn't yet exist. You need to memorize the parameters and their types as well. Whether you need the return type or not really depends on what you are doing and/or if you want extra soundness/verification in a later step. You can skip this phase if the method you are appending is static and you already know what members will be missing in advance.Phase 4: Go through the code one last time and append a null method into
C
that with the proper name and types. Retuningnull
isn't the best thing, not sure if there is a better alternative.Later in the typer replace the appended method body with the proper one (the one you are copying)
The actual synthesis looks like this but as I mentioned above, if you actually want this to work, you will need to figure out all the stuff above.
QUESTION
I recently ran into an issue when building a Laravel Livewire component where the javascript portion wouldn't update when a select input changed. The component is a chart from the Chartist.js library and it displays on load but when I change the select input the chart disappears. I came up with a solution but it feels dirty, anyone have a better solution to this.
line-chart.blade.php
...ANSWER
Answered 2021-Nov-14 at 12:15I never used the chartist, but I usually use this approach (let me know if the code make sense to you).
QUESTION
So my dataframe looks like this: I am trying to find a simpler way to get the objects from a Groupby and then putting it in a dictionary. I had to obtain the index and then do a for loop to get the exact string of each row in Product.
More details if needed: My goal was to find duplicate Order ID and then take the products from the column and add to dictionary with:
key = Product
value = no of times the Product is found to be ordered together
(I am not looking for ways to optimize finding duplicates, i know I could use df.duplicated
)
Code:
...ANSWER
Answered 2021-Nov-14 at 02:16# number of products per order
prods_per_order = df.groupby(['Order ID'])["Product"].transform("count")
res = (
df.loc[prods_per_order > 1, "Product"] # Select only the products that were ordered together with another(s) product(s)
.value_counts() # count how many times were per product
.to_dict() # convert the result to a dict
)
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Rust is installed and managed by the rustup tool. Rust has a 6-week rapid release process and supports a great number of platforms, so there are many builds of Rust available at any time. Please refer rust-lang.org for more information.
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