unbox | Fast , simple , easy-to-use DI container | Dependency Injection library
kandi X-RAY | unbox Summary
kandi X-RAY | unbox Summary
Below, you can find a complete guide and full documentation - but to give you an idea of what this library does, let's open with a quick code sample.
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Top functions reviewed by kandi - BETA
- Resolve parameter values .
- Returns the value for a given name .
- Configure the component .
- Registers a new class .
- Create a callable from a callable
- Get the type of a parameter .
- Copies this configuration to another configuration .
- Unbox the container .
unbox Key Features
unbox Examples and Code Snippets
Lines of Code : 75
License : No License
Copyinterface CacheInterface {
// ...
}
class FileCache implements CacheInterface {
public function __construct($path) { ... }
}
class UserRepository {
public function __construct(CacheInterface $cache) { ... }
}
use mindplay\unbox\Contain register(string $type) # register a component (for auto-creation)
register(string $type, array $map) # ... with custom constructor arguments
register(string $name, string $type) # $factory = new ContainerFactory();
// ... bootstrapping ...
$container = $factory->createContainer();
$cache = $container->get(CacheInterface::class);
$db_name = $container->get("db_name");
$container->call(function (CacheInterface $c Community Discussions
Trending Discussions on unbox
QUESTION
In this programming problem, the input is an n×m integer matrix. Typically, n≈ 105 and m ≈ 10. The official solution (1606D, Tutorial) is quite imperative: it involves some matrix manipulation, precomputation and aggregation. For fun, I took it as an STUArray implementation exercise.
I have managed to implement it using STUArray, but still the program takes way more memory than permitted (256MB). Even when run locally, the maximum resident set size is >400 MB. On profiling, reading from stdin seems to be dominating the memory footprint:
Functions readv and readv.readInt, responsible for parsing integers and saving them into a 2D list, are taking around 50-70 MB, as opposed to around 16 MB = (106 integers) × (8 bytes per integer + 8 bytes per link).
Is there a hope I can get the total memory below 256 MB? I'm already using Text package for input. Maybe I should avoid lists altogether and directly read integers from stdin to the array. How can we do that? Or, is the issue elsewhere?
ANSWER
Answered 2021-Dec-05 at 11:40Contrary to common belief Haskell is quite friendly with respect to problems like that. The real issue is that the array library that comes with GHC is total garbage. Another big problem is that everyone is taught in Haskell to use lists where arrays should be used instead, which is usually one of the major sources of slow code and memory bloated programs. So, it is not surprising that GC takes a long time, it is because there is way too much stuff being allocation. Here is a run on the supplied input for the solution provided below:
QUESTION
I have two source files which are doing roughly the same. The only difference is that in the first case function is passed as a parameter and in the second one - value.
First case:
...ANSWER
Answered 2021-Nov-18 at 11:33The difference is that if the generating function is already known in the benchmarked function, the generator is inlined and the involved Int-s are unboxed as well. If the generating function is the benchmark parameter, it cannot be inlined.
From the benchmarking perspective the second version is the correct one, since in normal usage we want the generating function to be inlined.
QUESTION
I have some domain which execute business logic. And I want to wrap every domain method with another method, which can extend the business logic. I do this with expressions. Everything works fine as long as the domain methods have parameters of reference types. As soon as they have a value typed parameter, my call to Expression.NewArrayInit crashes, because int cannot be used to initialize an array of type object. I know, that the solution is boxing and unboxing, but I don't know how.
This is my example code. I have two NUnit tests. The first one is for the domain method with reference type parameters, the second one is for the domain method with one value type parameter. I struggle with the second one. (By the way: I simplified the domain methods and the wrapping method.)
...ANSWER
Answered 2021-Nov-15 at 09:22You can use Expression.Convert to box value type into object, and you can leave reference types as is:
QUESTION
There are plenty of classes in .NET standard library that have no interfaces. It ignores the dependency inversion principle. There is the same story with static methods. But we can fluently adapt them like
...ANSWER
Answered 2021-Nov-02 at 21:02Frankly I don't know how to implement what you are looking for. However, there is a easy workaround with minimal syntax. The idea is you await GetBAsync convert B to A, wrap A in a task and then return it. It is a extra-step, but a simple one:
QUESTION
I am using wso2 apim 3.1.0 I want to enable json schema validation for the json payload. I have referred to the belpw document for setting up json shema validation in wso2 apim https://m-saranki.medium.com/unboxing-json-schema-validator-320-2dd944dae6c0 . I am testing the below API for json schema validation
...ANSWER
Answered 2021-Oct-19 at 16:08- Explanation
I believe you are using wso2am-3.1.0 vanilla pack along with a custom sequence file which probably has a mediator using "json-eval($.)" expression. Please confirm. This is a known issue in the wso2am-3.0.0 and wso2am-3.1.0 vanilla packs.
This is becasue when we use json-eval($.) expression in a sequence in the /repository/deployment/server/synapse-configs/default/sequences directory and when it gets deployed, the synapse is setting the GsonJsonProvider [1] to represent the JSON inside the Jayway JsonPath[2].
Since the GsonJsonProvider is getting loaded, even if we remove the particular sequence file which has the json-eval($.) expression in a property mediator, the issue will still persists until we restart the server.
But, if we do not use the json-eval($.) expression at all in a sequence in the /repository/deployment/server/synapse-configs/default/sequences directory, we will not get the above error when we enable the JSON schema validation as the jsonsmartjsonprovider [3] is used to represent the JSON inside the Jayway JsonPath.
Since the JSON object representation is getting different in the error scenario, it throws the IllegalArgumentException in that case.
- Solution
You can approach one of the following solution as suggested below.
- This issue has been fixed in the latest WUM/updated pack. If you have the WSO2 subscription then you can get the latest update.
- You can deploy a new wso2am-3.1.0 vanilla pack and invoke the API calls without the sequence having json-eval($.) expression.
QUESTION
I'm creating some APIs with R and Plumber. I configure the entrypoint.R like that
ANSWER
Answered 2021-Oct-18 at 09:56QUESTION
Android Studio gives the warning: Unboxing of 'idCollisonMap.get(currentId)' may produce 'NullPointerException' even though I am checking if the key exists before I perform the Map.get().
Am I actually in danger of running into a null pointer exception? My understanding is that .containsKey() check would prevent this from happening.
ANSWER
Answered 2021-Oct-14 at 16:31Assuming nothing else is modifying the map, and if the map never contains null values, this looks safe to me - but you can avoid the warning and be more efficient at the same time, by unconditionally calling get and using the result to handle missing keys as well:
QUESTION
There is a feature in Intellij Idea called Analyze > Code Cleanup. This cleans up the code (like removes unnecessary instances of this.). I am editing a very old script in a newer version of Java. I'm in a file, and there is almost 700 warnings saying Remove Boxing and Remove Unboxing. For some reason, when I run code cleanup, it cleans up everything except this. The severity in my settings for this is at warning. What can I do to automatically remove all unnecessary Boxing and Unboxing from this old script?
Thank you for the help!
...ANSWER
Answered 2021-Oct-07 at 17:40The simplest way if you have one file (or only a few):
- hover over one line having warning till a quick fix pop up appears and click on More actions...
- click on the arrow >
- choose fix all 'Unnecessary unboxing' problems in file
QUESTION
I have the following Java native method declaration:
...ANSWER
Answered 2021-Aug-23 at 12:00Since you already have a reflect.Method object, you can just .invoke it. That already does the unboxing for you:
QUESTION
enum Season { spring, summer, fall, winter }
int a = (int)Season.spring;
ANSWER
Answered 2021-Sep-12 at 04:47As documented in ECMA-334 11.3.3, C# defines a conversion to and from an enum type and its underlying type:
However, this does not specify whether or not it is an unboxing conversion. That could be deduced, though, from the fact that both the enum and the integer are value-types, therefore no unboxing is involved.
ECMA-335, which defines the CLR, makes it more clear that an enum is not just convertible to an integer, it actually is the integer, there is no conversion done at all:
14.3 Enums
For binding purposes (e.g., for locating a method definition from the method reference used to call it) enums shall be distinct from their underlying type. For all other purposes, including verification and execution of code, an unboxed enum freely interconverts with its underlying type. Enums can be boxed (§13) to a corresponding boxed instance type, but this type is not the same as the boxed type of the underlying type, so boxing does not lose the original type of the enum.
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