step095-emscripten doesn't compile with enum issue

[esqu1]

This happens after running

emcmake cmake . -B build-web
cmake --build build-web

the error:

/home/blin/LearnWebGPU-Code/build-web/_deps/webgpu-backend-emscripten-src/include/webgpu/webgpu.hpp:226:1: error: unknown type name 'WGPUComputePassTimestampLocation'; did you mean 'ComputePassTimestampLocation'?
  226 | ENUM(ComputePassTimestampLocation)
      | ^
/home/blin/LearnWebGPU-Code/build-web/_deps/webgpu-backend-emscripten-src/include/webgpu/webgpu.hpp:104:10: note: expanded from macro 'ENUM'
  104 |         typedef WGPU ## Type W; /* W == WGPU Type */ \
      |                 ^
<scratch space>:325:1: note: expanded from here
  325 | WGPUComputePassTimestampLocation
      | ^
/home/blin/LearnWebGPU-Code/build-web/_deps/webgpu-backend-emscripten-src/include/webgpu/webgpu.hpp:226:6: note: 'ComputePassTimestampLocation' declared here
  226 | ENUM(ComputePassTimestampLocation)
      |      ^
/home/blin/LearnWebGPU-Code/build-web/_deps/webgpu-backend-emscripten-src/include/webgpu/webgpu.hpp:226:1: warning: conversion function converting 'wgpu::ComputePassTimestampLocation' to itself will never be used [-Wclass-conversion]
  226 | ENUM(ComputePassTimestampLocation)
      | ^
/home/blin/LearnWebGPU-Code/build-web/_deps/webgpu-backend-emscripten-src/include/webgpu/webgpu.hpp:106:2: note: expanded from macro 'ENUM'
  106 |         operator W() { return m_raw; } \
      |         ^
/home/blin/LearnWebGPU-Code/build-web/_deps/webgpu-backend-emscripten-src/include/webgpu/webgpu.hpp:226:1: error: field has incomplete type 'W' (aka 'wgpu::ComputePassTimestampLocation')
/home/blin/LearnWebGPU-Code/build-web/_deps/webgpu-backend-emscripten-src/include/webgpu/webgpu.hpp:108:4: note: expanded from macro 'ENUM'
  108 |         W m_raw; \

Versions

• Emscripten version 3.1.51

[esqu1]

Ah, downgrading to Emscripten 3.1.45 seems to do the trick.

[adam-ce]

same issue. on linux, the last working version is 3.1.47.

[adam-ce]

ok, so apparently webgpu.h changed and made the provided webgpu.hpp incompatible.

you have to go to https://eliemichel.github.io/WebGPU-Cpp/, and paste your webgpu.h, then replace your webgpu.hpp. The new files have some changes (1. corrected spelling error and 2. removed a descriptor field). You'll have to fix your code to match the new api. I tested this on 3.1.53. In my case, I also had to give a nullptr to wgpuCreateInstance.