Walt
Walt is a JavaScript-like syntax for WebAssembly text format
...Then you're ready to compile that into the final WebAssembly binary. Provide a thin layer of syntax sugar on top of .wat text format. Preferably porting as much of JavaScript syntax to WebAssembly as possible. This improved syntax should give direct control over the WebAssembly output. Meaning there should be minimal to none post-optimization to be done to the waste code generated.