ref-struct-di | Create ABI-compliant struct '' instances on top of Buffers | Reflection library

by node-ffi-napi JavaScript Version: 1.1.1 License: MIT

X-Ray Key Features Code Snippets Community Discussions(2)Vulnerabilities Install Support

kandi X-RAY | ref-struct-di Summary

ref-struct-di is a JavaScript library typically used in Programming Style, Reflection applications. ref-struct-di has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can install using 'npm i ref-struct-di' or download it from GitHub, npm.

[Dependency Status] This module offers a "struct" implementation on top of Node.js Buffers using the ref "type" interface. Note: The only difference to ref-struct is that this module takes its dependency on ref via dependency injection, so that it is easier to use e.g. ref-napi instead.

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Quality

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Reuse

Support

ref-struct-di has a low active ecosystem.

It has 13 star(s) with 8 fork(s). There are 2 watchers for this library.

It had no major release in the last 12 months.

There are 2 open issues and 4 have been closed. On average issues are closed in 243 days. There are 5 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of ref-struct-di is 1.1.1

Quality

ref-struct-di has 0 bugs and 0 code smells.

Security

ref-struct-di has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

ref-struct-di code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

ref-struct-di is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

ref-struct-di releases are not available. You will need to build from source code and install.

Deployable package is available in npm.

Installation instructions, examples and code snippets are available.

Top functions reviewed by kandi - BETA

kandi has reviewed ref-struct-di and discovered the below as its top functions. This is intended to give you an instant insight into ref-struct-di implemented functionality, and help decide if they suit your requirements.

Adds a field to the current struct type .

Get all kandi verified functions for this library.

ref-struct-di Key Features

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ref-struct-di Examples and Code Snippets

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Community Discussions

Trending Discussions on ref-struct-di

Node ffi napi, call return true but no result in pointer

Create struct in C/Rust code for Node-FFI

QUESTION

Node ffi napi, call return true but no result in pointer

Asked 2021-Oct-24 at 06:52

Need to use some ffi napi in electron, and i trying to get it work, starting from small. Trying to understand and get ffi works, but cant get result. I know that i pass pointer to struct, into which the result will be written. But call return True and no result in the specified pointer. There is no new data. Please help with this.

...

ANSWER

Answered 2021-Oct-24 at 06:52

First, I don't know the pointer well. However, I was interested in the same problem, so I tried and found a solution. I will revise it when I know the exact principle.

The GetWindowRect and SHAppBarMessage functions you used receive struct pointer type parameters from C++. These functions have the function of notifying the successful or not by the return value and recording the data on the received struct. So, when testing the function in C++, an error occurs when building a structure type parameter without adding the Ampsand(ex. &rect or &data) symbol.

An example of ref-struct-di shows an example of using a struct pointer to a parameter. I thought this was delivering a struct pointer to a function and it worked when the code was modified as follows. The part that uses struct as a parameter and the part that defines the function with ffi must be modified. Please refer to the comments in code!

Source https://stackoverflow.com/questions/68928710

QUESTION

Create struct in C/Rust code for Node-FFI

Asked 2021-Apr-26 at 07:56

I am trying to return a struct from a Rust function to Node.js, the struct is nested, and contains an array so it is sufficiently complicated that I want to do the allocation in Rust and have Node.JS receive a complete object, here's the Rust code in short:

A State is returned that contains a number of Configs, a message (e.g error message, or some warning) and a number of configs.

...

ANSWER

Answered 2021-Apr-26 at 07:56

and contains an array so it is sufficiently complicated that I want to do the allocation in Rust and have Node.JS receive a complete object,

Containing an array was the tricky/trap part. Arrays in C (ergo FFI) tend to be zero terminated, but there's no guarantee that things work a particular way for arrays of structs.

Here's what we had to do:

In Rust, expose a struct with a length member, and a pointer to a single item.
In Rust, allocate a vector of our things and use into_boxed_slice() to forget it, this gives a pointer to the first one.
Fill the length property on our struct

Everything like in the example we posted first.

In node.js however it's a bit different, the working code was nearly identical to what we had, here's the types:

Source https://stackoverflow.com/questions/67028734

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install ref-struct-di

You can install using 'npm i ref-struct-di' or download it from GitHub, npm.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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