CODEWITHSUNDEEP
pointersrustanydynamic-typingraw-pointer
Vipul Rajan
Vipul Rajan

Reputation: 642

Create an Object From Raw Pointer and Metadata

I am trying to do something complex in rust with wasm_bindgen I cannot export generic structs/functions from rust to javascript.

What I'm trying to do is something like this. some function

pub fn foo() -> (String, *const ()) {
    let a: RandomType = //Create object
    (a.get_metadata(), a.get_ptr())
}

This function will be exported to JS and here the String will be the metadata.

another function

pub fn goo(metadata: String, ptr: *const ()) -> SomeType {
    let a = //do something with metadata and ptr to get object
    let b: SomeType = a.into();
}

of course, I will implement the Into Trait for whatever type a is supposed to be.

Basically, this type cannot be known at compile time. Is there a way to achieve this?

The Highlighted post talks about one function having 2 different return types and that is not what this is about at all. The return of function goo never changes. I just need a way to read data from a raw pointer.

Upvotes: 0

Views: 53

Answers (0)

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