Questions tagged [rust-wasm]
121 questions
3
votes
1 answer
Using wasm_timer in Yew to execute callback repeatedly
I'm still rather new to Rust and have a hard time wrapping my head around futures. I want to implement a "timer app" in the browser and to do so I'm using https://yew.rs/. For the timer I tried to use https://github.com/tomaka/wasm-timer/, but there…
Achim
- 15,415
- 15
- 80
- 144
3
votes
1 answer
.Rlib and .d file instead of .wasm
I want to compile a .rs file in a Rust lib to a .wasm.
RUSTFLAGS='-C link-arg=-s' cargo build --release --target wasm32-unknown-unknown
Instead of a .wasm file I get a .Rlib and .d file. What do I need to change to get a .wasm?
SurpriseMF
- 174
- 9
3
votes
0 answers
Return mutliple values from a wasm function
I have a Golang TCP server running locally and connected to a wasm module. Currently, I can return one value from a wasm function. Through this blog, I noticed that there should be possible to return multiple values rather than one. However, in my…
Hanif Tadjik
- 73
- 1
- 7
3
votes
1 answer
How do I call a Rust function from Go with a string as a parameter?
I have been trying to pass a string to a Rust function (compiled to Wasm), however for what I understood, right now there is no way to pass strings directy, because the "str" is not a type in the "FFI world" (at least that's what the rust compiler…
JioFrost
- 33
- 7
2
votes
1 answer
Compute Shaders in Google chrome and Apple M1
I have a working physics simulator written in wgpu/rust that works when I am running from the command line. However, when I try to run on the chrome v114 (supported according to what I saw online), I get the following error saying the max number of…
Pap113
- 37
- 1
- 7
2
votes
0 answers
Why does Cargo incorrectly compile Rust WASM global variables?
The following Rust compiled to WASM, based on the Wasmer exports_global.rs WASM example, produces incorrect WASM (with cargo build --target=wasm32-wasi):
// (module
// (global $one (export "one") f32 (f32.const 1))
// (global $some (export…
junglie85
- 1,243
- 10
- 30
2
votes
1 answer
Rust Polars WebAssembly CSVReader
I am having an issue below when trying to upload a CSV file and parse it in web assembly polars using rust.
Thanks
Error:
Grid.js:498 panicked at 'unsafe precondition(s) violated: ptr::read requires that the pointer argument is aligned and…
lallma
- 31
- 2
2
votes
1 answer
How do I remove this compiler error for use_store with yewdux?
I am learning yewdux and have implemented the tutorial code for global state:
use yew::prelude::*;
use yewdux::prelude::*;
#[derive(Default, Clone, PartialEq, Eq, Store)]
struct State {
count: u32,
}
#[function_component]
fn App() -> Html {
…
Eli
- 23
- 3
2
votes
0 answers
Is there a way to integrate an arbitrary build command to a Cargo build?
At the end of a cargo build, I would like to call wasm-opt with specific optimization options on the generated WASM file.
Unfortunately, it seems that the Cargo.toml does not support support asyncify options.
A good solution would prevent cargo from…
rcora
- 21
- 3
2
votes
0 answers
How to return nested array from wasm_bindgen function
I have a rust program which I would like to run as web assembly in javascript. I have a function which I want to return a 3D array, so I can plot some data on a graph on the frontend, but I cannot find a way to return such data. Having a look at…
m.tracey
- 173
- 1
- 10
2
votes
1 answer
Wasmd isn't installed
I have tried to install wasmd on Ubuntu.
git clone https://github.com/CosmWasm/wasmd.git
cd wasmd
git checkout v0.23.0
make install
But when I tried wasmd version, I met wasmd: command not found.
It seems like the problem of PATH setting but I…
Bikas Lin
- 689
- 5
- 16
2
votes
1 answer
How to separate yew components to different files?
I just started learning yew (frontend framework). How do i put every component in separate file, like in js frameworks. (i am using function components now)
smolovk
- 61
- 3
2
votes
2 answers
Caching Rust/Wasm tools in Gitlab CI?
I'm working with Wasm and Rust, and I'm deploying the page with gitlab pages.
I'm using a gitlab-ci.yml file that looks like this:
image: "rust:latest"
variables:
PUBLIC_URL: "/repo-name"
pages:
stage: deploy
script:
- rustup target add…
al3x
- 589
- 1
- 4
- 16
2
votes
0 answers
panicked at 'could not retreive random bytes for uuid: Node.js crypto module is unavailable'
I am writing some code in the rust and compiling it to wasm to run it using node.js runtime for lambda@edge. I need to generate the uuid as part of this code. I am doing that in rust and the code is compiling. But when I run, it is throwing below…
Vikas
- 21
- 3
2
votes
1 answer
`web_sys::Url::create_object_url_with_blob(&blob)` not formatting binary data correctly
I have the following code:
let bytes: Vec = load_file_as_bytes("mydoc.docx"); // This gets a byte vec representation of the file mydoc.docx
let uint8arr = unsafe { js_sys::Uint8Array::view(&bytes) };
let js_value =…
Charles Schleich
- 450
- 4
- 9