Hey there 🤗, Welcome to my GSoC Journey

This is a series of blogs that I am writing to share my amazing GSoC 22 (Google Summer of Code 2022) Journey with you all.

Adding Print support and Deploying on Live Site

In this week, I-

added support for printing in the generated wasm binary
added support for stop and error stop
built the LCompilers Frontend for LFortran (compiled to wasm) and deployed it to GitHub Pages with the compiled lfortran wasm binary.

I also worked on my Compiling LFortran to wasm task of Week/Blog 2. The same blog has been updated and can be found here.

During this weeks endeavour, I faced challenges at two places:

After upgrading my node version (as stated here), my emscripten stopped working. I needed emscripten to compile LFortran to wasm. Things started working when I successfully uninstalled my upgraded node and reinstalled emscripten. And I was able to build LFortran to wasm using emscripten.
Even though emscripten was fixed and LFortran was successfully compiling to wasm, it did not have C++ exceptions support. As per !1549, we need to add the flag -fexceptions to enable exception support. Even after including the -fexceptions flags, exceptions were still not being supported. Without exceptions support the LCompilers Frontend was not showing the hints/feedback if there were errors in the source code. I tried different combination of emscripten flags and finally found that
- the flag -s STANDALONE_WASM was somehow not-allowing/disabling exceptions support
- apart from including -fexceptions as emscripten flags, -fexceptions is also needed to be included as CXX_DEBUG_FLAGS in the build_to_wasm.sh script

This phase was mostly/approximately from 18-06-2022 to 24-06-2022.

The MRs during this phase are as follows:

Also,

Upcoming Tasks for next week:

That’s all for this blog. Thank you for your time. We continue this series in the next blog.