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Oracle Drags Its Feet in the JavaScript Trademark Dispute
Oracle seeks to dismiss fraud claims in the JavaScript trademark dispute, delaying the case and avoiding questions about its right to the name.
js-wasm-tools
Advanced tools
JavaScript version of wasm-tools, low level tooling for WebAssembly in Rust
js-wasm-tools
compiles some of the API of wasm-tools to JavaScript and WebAssembly via wasm-bindgen
. This offers low level tooling for WebAssembly in JavaScript, such as parsing WAT (WebAssembly Text Format) into bytes, translating the WebAssembly binary format to text, and more.
npm install js-wasm-tools
You can try it out live on StackBlitz.com.
Using Vite:
import initWasmTools, * as wasmTools from 'js-wasm-tools';
import WASM_TOOLS_WASM_URL from 'js-wasm-tools/wasm_tools_js_bg.wasm?url';
await initWasmTools(WASM_TOOLS_WASM_URL);
const source = '(module)';
const binary = wasmTools.parseWat(source);
With Node.js:
import initWasmTools, * as wasmTools from 'js-wasm-tools';
import fs from 'node:fs';
import path from 'node:path';
import * as url from 'node:url';
const __dirname = url.fileURLToPath(new URL('.', import.meta.url));
const bytes = fs.readFileSync(path.join(__dirname, 'node_modules/js-wasm-tools/dist/js_wasm_tools_bg.wasm'));
await initWasmTools(bytes);
const source = '(module)';
const binary = wasmTools.parseWat(source);
console.log(binary);
Parses a string as the WebAssembly Text format, returning the WebAssembly binary format.
Parses bytes as either the WebAssembly Text format, or a binary WebAssembly module.
This function will attempt to interpret the given bytes as one of two options:
b"\0asm"
const encoder = new TextEncoder();
const bytes = wasmTools.parseWat(encoder.encode('(module)'));
expect(bytes).toEqual([0, 97, 115, 109, 1, 0, 0, 0]);
const bytes = wasmTools.parseWat([0, 97, 115, 109, 1, 0, 0, 0]);
expect(bytes).toEqual([0, 97, 115, 109, 1, 0, 0, 0]);
Prints a Wasm binary blob into a string which is its textual representation.
const wat = wasmTools.printBytes(new Uint8Array([0, 97, 115, 109, 1, 0, 0, 0]));
expect(wat).toEqual('(module)');
Parses a string as the WebAssembly Text format, and desugars the module, e.g. unfolding expressions.
const { wat, bytes } = wasmTools.desugarWat(`
(module
(func $foo
(call $bar (i32.const 1) (i32.const 2))
)
(func $bar (param i32 i32))
)
`);
expect(wat).toEqual(`
(module
(type (;0;) (func))
(type (;1;) (func (param i32 i32)))
(func $foo (;0;) (type 0)
i32.const 1
i32.const 2
call $bar
)
(func $bar (;1;) (type 1) (param i32 i32))
)
`);
Test whether the given buffer contains a valid WebAssembly module or component, analogous to WebAssembly.validate
in the JS API.
Upon success returns the type information for the top-level module or component.
const encoder = new TextEncoder();
const types = wasmTools.validate(
encoder.encode(`
(module
(func $foo (result f32)
f32.const 1
)
(func $bar (param i32 i32))
)
`)
);
expect(types).toEqual({
types: [
{
type: 'Func',
params: [],
results: ['f32'],
},
{
type: 'Func',
params: ['i32', 'i32'],
results: [],
},
],
functions: [
{
params: [],
results: ['f32'],
},
{
params: ['i32', 'i32'],
results: [],
},
],
globals: [],
memories: [],
tables: [],
elements: [],
});
FAQs
JavaScript version of wasm-tools, low level tooling for WebAssembly in Rust
The npm package js-wasm-tools receives a total of 3 weekly downloads. As such, js-wasm-tools popularity was classified as not popular.
We found that js-wasm-tools demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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