webassembly

How to detect failure and reset/restart webassembly Module?

由 故事扮演 提交于 2021-01-04 03:26:37
问题 I am trying to get some C++ functions to run on the browser using WebSssembly. I am following this tutorial. I would like to know: How to detect (at JS side) an 'uncaught exception' coming from C++ code? How to reset/restart WebAssembly Module generated by emcc in a way that avoids memory leaks? Adding exception catching functionality ( DISABLE_EXCEPTION_CATCHING=0 ) seems to increase the file size too much. Any help will be greatly appreciated. The sample C++ code is as follows: // C++

How to detect failure and reset/restart webassembly Module?

由 ↘锁芯ラ 提交于 2021-01-04 03:24:42
问题 I am trying to get some C++ functions to run on the browser using WebSssembly. I am following this tutorial. I would like to know: How to detect (at JS side) an 'uncaught exception' coming from C++ code? How to reset/restart WebAssembly Module generated by emcc in a way that avoids memory leaks? Adding exception catching functionality ( DISABLE_EXCEPTION_CATCHING=0 ) seems to increase the file size too much. Any help will be greatly appreciated. The sample C++ code is as follows: // C++

How to detect failure and reset/restart webassembly Module?

由 自闭症网瘾萝莉.ら 提交于 2021-01-04 03:24:29
问题 I am trying to get some C++ functions to run on the browser using WebSssembly. I am following this tutorial. I would like to know: How to detect (at JS side) an 'uncaught exception' coming from C++ code? How to reset/restart WebAssembly Module generated by emcc in a way that avoids memory leaks? Adding exception catching functionality ( DISABLE_EXCEPTION_CATCHING=0 ) seems to increase the file size too much. Any help will be greatly appreciated. The sample C++ code is as follows: // C++

Is it possible to explicitly call an exported Go WebAssembly function from JS?

由 限于喜欢 提交于 2020-12-29 04:17:56
问题 Is it possible to call a Go WebAssembly function, other than main , in Javascript? Let me first show what I did. My Go functions are defined as follows: package main import "fmt" func main() { fmt.Println("it works!") } func add(a, b int) int { return a + b } I can only invoke the main function: const go = new Go(); const data = await fetch("http://localhost:3333/main.wasm"); const result = await WebAssembly.instantiateStreaming(data, go.importObject); go.run(result.instance); which returns

作为Web开发者，你愿给Firefox一次机会吗？

由 核能气质少年 提交于 2020-12-23 14:28:00
作为Web开发者，你愿给Firefox一次机会吗？ 作者｜Ibrahim Nergiz译者｜大愚若智编辑｜覃云本文从开发者角度介绍了 Mozilla 全新发布的 Firefox Quantum 浏览器在诸多方面的改进和增强，尤其是在 Web 开发者工具方面新增的功能。 友情提示：原文的图片大多都是动图，但由于微信对图片大小的限制，以及动图压缩后变成高糊，为了保证阅读质量，小编将动图换成了png图，想获取原图的读者可点击文末 原英文链接 。 作为“晚期”八零后的我，对 Firefox 的崛起和衰落至今依然感觉历历在目。 Firefox 最初作为开源项目，以 Internet Explorer 6 竞争对手的姿态诞生。当时这是个很棒的项目，因为它为用户提供了更多选择，例如，用户可以通过各种扩展获得新的功能，还可以更改浏览器的视觉主题等，每个人都爱过它。 然而几年后另一个重量级选手登场了。这个选手名叫 Chrome，Chrome 发布后迅速攻城掠地，很快超越了所有对手。实际上，Chrome 在极短的时间里获得了如此众多的用户，成为 Google 有史以来最有价值的 资产，相信很多人现在就是使用 Chrome 阅读本文的。 不过我们还是先简单回顾一下吧。作为开发者，我完全明白用户有多难取悦。 随着各种越来越复杂的 Web 技术，以及常规应用程序和软件逐渐涌现，内存和 CPU

前端周报：微软发布基于Chromium的Microsoft Edge预览版；Nuxt发布v2.9.0

由 天大地大妈咪最大 提交于 2020-12-19 09:31:07
前端周报：微软发布基于Chromium的Microsoft Edge预览版；Nuxt发布v2.9.0；npm 发布v6.11.0 作者 | Yonie, Zehao前端周报专注大前端领域内容，以对外文资料的搜集为主，帮助开发者了解一周前端热点；分为新闻热点、深度阅读、开源项目等栏目。欢迎关注【前端之巅】微信公众号（ID: frontshow），及时获取前端周报内容。 新闻热点 前端新闻 【 Chrome 76 将增加原生 Lazy-Loading 功能 】：这是处理延迟加载的重大改进。如果 Chrome 76 中能稳定运行此功能，它将是长期以来性能最强大的版本之一。详情请查看: https://scotch.io/bar-talk/native-lazy-loading-launched-on-chrome-76 【 Vue 最新动态 】：基于函数的组件 API 提议被拒绝，尤雨溪发布了重新设计的 Function-API RFC，现在被称为 Composition API。详情请查看：https://news.vuejs.org/issues/154 【 Nuxt 发布 v2.9.0 版本 】：在本版本中 vue-meta 升级到 2.0.0 版本，外部化 TypeScript 支持；详情请查看: https://twitter.com/nuxt_js/status

How to return a reference to a nested Rust struct in WebAssembly?

由 大兔子大兔子 提交于 2020-12-16 04:09:32
问题 I have 2 structs where I can access the Parent struct from JavaScript and create it with new : struct Child { foo: String, } impl Child { pub fn do_something(&self) { /* some stuff */ } } #[wasm_bindgen] pub struct Parent { child: Child, } #[wasm_bindgen] impl Parent { pub fn new() -> Self { Self { child: Child { foo: String::new() }, } } pub fn child(&self) -> &Child { &self.child } } I cannot compile the code because of an error at the child() method: cannot return a borrowed ref with #

Blazor client WASM form validation in component not working

由 ﹥＞﹥吖頭↗ 提交于 2020-12-15 05:23:33
问题 Im having trouble getting from validation to work properly in a Blazor WASM client application. Encapsulating an InputText element to a component for compact layout does no longer perform validation that is executed correctly otherwise. using model like public class Customer { [Required] [StringLength(100) public string customerName {get; set;} = ""; } in a form of <EditForm Model=@customer> <DataAnnotationsValidator /> <ValidationSummary /> <div class="form-row"> <div class="form-group mb-0

Blazor client WASM form validation in component not working

由 这一生的挚爱 提交于 2020-12-15 05:23:27
问题 Im having trouble getting from validation to work properly in a Blazor WASM client application. Encapsulating an InputText element to a component for compact layout does no longer perform validation that is executed correctly otherwise. using model like public class Customer { [Required] [StringLength(100) public string customerName {get; set;} = ""; } in a form of <EditForm Model=@customer> <DataAnnotationsValidator /> <ValidationSummary /> <div class="form-row"> <div class="form-group mb-0

Rust/Webassembly/wasm-bindgen - getting values from `js_sys' Promise

由 拈花ヽ惹草 提交于 2020-12-13 07:47:48
问题 I'm playing with wasm-bindgen ( https://github.com/rustwasm/wasm-bindgen ), just out of curiosity. While playing with the Navigator ( web_sys crate) I stumbled upon this method: https://docs.rs/web-sys/0.3.36/web_sys/struct.MediaDevices.html#method.enumerate_devices it returns a Result<Promise, JsValue> ..now, I'm new to Rust, and my question is how can I fetch the value of the Promise ? How the Closure::wrap works? How to use it with then method to fetch the results? I wonder if someone
订阅 webassembly