TypeScript warnings when consuming wasm-pack output

[donmccurdy]

🐛 Bug description

I've published an npm package built with wasm-pack, https://github.com/donmccurdy/mikktspace-wasm, and the notable configuration is in its package.json. When trying to use this package in another project (using TypeScript, Webpack, and Svelte) I'm seeing many warnings like these:

error.txt

webpack serve --content-base public
ℹ ｢wds｣: Project is running at http://localhost:8080/
ℹ ｢wds｣: webpack output is served from /
ℹ ｢wds｣: Content not from webpack is served from public
✖ ｢wdm｣: asset build/bundle.js 531 KiB [emitted] (name: build/bundle) 1 related asset
asset 39f576dd15b04118ab91cb9209690a4b.wasm 32.8 KiB [emitted] [immutable] [from: node_modules/mikktspace/dist/mikktspace_module_bg.wasm] (auxiliary name: build/bundle)
runtime modules 27.1 KiB 14 modules
modules by path ./node_modules/ 443 KiB 42 modules
modules by path ./src/ 5.88 KiB
  modules by path ./src/*.css 3.15 KiB
    ./src/global.css 2.66 KiB [built] [code generated]
    ./node_modules/css-loader/dist/cjs.js!./src/global.css 498 bytes [built] [code generated]
  ./src/main.ts 142 bytes [built] [code generated] [1 error]
  ./src/App.svelte 2.59 KiB [built] [code generated]

WARNING in ./node_modules/mikktspace/dist/mikktspace_module_bg.js 11:73-91
export 'memory' (imported as 'wasm') was not found in './mikktspace_module_bg.wasm' (possible exports: default)
 @ ./node_modules/mikktspace/dist/mikktspace_module.js 2:0-42 2:0-42
 @ ./src/App.svelte 17:0-41 56:13-23 63:34-44
 @ ./src/main.ts 2:0-31 3:16-19

WARNING in ./node_modules/mikktspace/dist/mikktspace_module_bg.js 12:46-64
export 'memory' (imported as 'wasm') was not found in './mikktspace_module_bg.wasm' (possible exports: default)
 @ ./node_modules/mikktspace/dist/mikktspace_module.js 2:0-42 2:0-42
 @ ./src/App.svelte 17:0-41 56:13-23 63:34-44
 @ ./src/main.ts 2:0-31 3:16-19

WARNING in ./node_modules/mikktspace/dist/mikktspace_module_bg.js 52:77-95
export 'memory' (imported as 'wasm') was not found in './mikktspace_module_bg.wasm' (possible exports: default)
 @ ./node_modules/mikktspace/dist/mikktspace_module.js 2:0-42 2:0-42
 @ ./src/App.svelte 17:0-41 56:13-23 63:34-44
 @ ./src/main.ts 2:0-31 3:16-19

WARNING in ./node_modules/mikktspace/dist/mikktspace_module_bg.js 53:50-68
export 'memory' (imported as 'wasm') was not found in './mikktspace_module_bg.wasm' (possible exports: default)
 @ ./node_modules/mikktspace/dist/mikktspace_module.js 2:0-42 2:0-42
 @ ./src/App.svelte 17:0-41 56:13-23 63:34-44
 @ ./src/main.ts 2:0-31 3:16-19

WARNING in ./node_modules/mikktspace/dist/mikktspace_module_bg.js 69:73-91
export 'memory' (imported as 'wasm') was not found in './mikktspace_module_bg.wasm' (possible exports: default)
 @ ./node_modules/mikktspace/dist/mikktspace_module.js 2:0-42 2:0-42
 @ ./src/App.svelte 17:0-41 56:13-23 63:34-44
 @ ./src/main.ts 2:0-31 3:16-19

WARNING in ./node_modules/mikktspace/dist/mikktspace_module_bg.js 70:46-64
export 'memory' (imported as 'wasm') was not found in './mikktspace_module_bg.wasm' (possible exports: default)
 @ ./node_modules/mikktspace/dist/mikktspace_module.js 2:0-42 2:0-42
 @ ./src/App.svelte 17:0-41 56:13-23 63:34-44
 @ ./src/main.ts 2:0-31 3:16-19

WARNING in ./node_modules/mikktspace/dist/mikktspace_module_bg.js 87:23-59
export '__wbindgen_add_to_stack_pointer' (imported as 'wasm') was not found in './mikktspace_module_bg.wasm' (possible exports: default)
 @ ./node_modules/mikktspace/dist/mikktspace_module.js 2:0-42 2:0-42
 @ ./src/App.svelte 17:0-41 56:13-23 63:34-44
 @ ./src/main.ts 2:0-31 3:16-19

WARNING in ./node_modules/mikktspace/dist/mikktspace_module_bg.js 88:49-71
export '__wbindgen_malloc' (imported as 'wasm') was not found in './mikktspace_module_bg.wasm' (possible exports: default)
 @ ./node_modules/mikktspace/dist/mikktspace_module.js 2:0-42 2:0-42
 @ ./src/App.svelte 17:0-41 56:13-23 63:34-44
 @ ./src/main.ts 2:0-31 3:16-19

WARNING in ./node_modules/mikktspace/dist/mikktspace_module_bg.js 90:47-69
export '__wbindgen_malloc' (imported as 'wasm') was not found in './mikktspace_module_bg.wasm' (possible exports: default)
 @ ./node_modules/mikktspace/dist/mikktspace_module.js 2:0-42 2:0-42
 @ ./src/App.svelte 17:0-41 56:13-23 63:34-44
 @ ./src/main.ts 2:0-31 3:16-19

WARNING in ./node_modules/mikktspace/dist/mikktspace_module_bg.js 92:49-71
export '__wbindgen_malloc' (imported as 'wasm') was not found in './mikktspace_module_bg.wasm' (possible exports: default)
 @ ./node_modules/mikktspace/dist/mikktspace_module.js 2:0-42 2:0-42
 @ ./src/App.svelte 17:0-41 56:13-23 63:34-44
 @ ./src/main.ts 2:0-31 3:16-19

WARNING in ./node_modules/mikktspace/dist/mikktspace_module_bg.js 94:8-29
export 'generateTangents' (imported as 'wasm') was not found in './mikktspace_module_bg.wasm' (possible exports: default)
 @ ./node_modules/mikktspace/dist/mikktspace_module.js 2:0-42 2:0-42
 @ ./src/App.svelte 17:0-41 56:13-23 63:34-44
 @ ./src/main.ts 2:0-31 3:16-19

WARNING in ./node_modules/mikktspace/dist/mikktspace_module_bg.js 98:8-28
export '__wbindgen_free' (imported as 'wasm') was not found in './mikktspace_module_bg.wasm' (possible exports: default)
 @ ./node_modules/mikktspace/dist/mikktspace_module.js 2:0-42 2:0-42
 @ ./src/App.svelte 17:0-41 56:13-23 63:34-44
 @ ./src/main.ts 2:0-31 3:16-19

WARNING in ./node_modules/mikktspace/dist/mikktspace_module_bg.js 101:8-44
export '__wbindgen_add_to_stack_pointer' (imported as 'wasm') was not found in './mikktspace_module_bg.wasm' (possible exports: default)
 @ ./node_modules/mikktspace/dist/mikktspace_module.js 2:0-42 2:0-42
 @ ./src/App.svelte 17:0-41 56:13-23 63:34-44
 @ ./src/main.ts 2:0-31 3:16-19

I can't seem to get those warnings to go away, even with tsconfig's skipLibCheck. I don't see anything obviously incorrect in the generated type definitions. Attached below, my simple demo project consuming this dependency:

wasm-pack-repro.zip

🤔 Expected Behavior

TypeScript should compile projects depending on wasm-pack output without warnings, or with a usable way to disable warnings.

👟 Steps to reproduce

From the sample ZIP above, run:

yarn
yarn dev

🌍 Your environment

Include the relevant details of your environment.
wasm-pack version: 0.10.0
rustc version: 1.49.0

[donmccurdy]

Possibly related: rustwasm/wasm-bindgen#2200

[leonbotros]

I'm running into the same issue. @donmccurdy, did you find a fix?