This is a single-pass C→WebAssembly compiler in 500 lines of (nicely formatted, non-comment, non-docstring) Python:
$ sloccount compiler.py | grep python:
python: 500 (100.00%)
It currently supports:
- Arithmetic
- Pointers
int
,char
, and string constants (no floating point)if
,while
,do while
,for
- Functions
- Typedefs
- (Single dimensional) arrays
- Some other stuff
Notably, it does not support preprocessor directives or structs.
You can use the ./run-test
script to compile and run C code. Simply run ./run-test <c file>
after running mkdir scratch
.
You'll need bat, wabt, and wasmer installed.
You will need to clone the c-testsuite into the repo: https://github.com/c-testsuite/c-testsuite
You'll also need all the tools listed in the Running Code section above.
Then you can ./run-all
. It currently passes 34/220 test cases.