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A comment on A cartoon intro to WebAssembly. Parent comment

Re:A cartoon intro to WebAssembly by abstractbeliefs on Tuesday February 28, 2017 @03:34PM (#13757572)
A well designed assembly language should be targetable by any well designed IR. When the Go team decided to work on their own compilers instead of writing frontends for existing compilers, they chose to take on that effort.

What assumptions is wasm making that will prevent Go from targeting it, and why are those assumptions fundamentally harder for Go to target than LLVM IR?

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Re:A cartoon intro to WebAssembly by porjo on Tuesday February 28, 2017 @06:05PM (#13759121)
Not sure about assumptions made by wasm, but current limitations preventing Go from targeting it are:

> there is no efficient way to implement setjmp/longjmp functionality currently, therefore it's not a viable target of a gc port. We need to wait until it gets real stack unwinding and exception handling support.

https://github.com/golang/go/issues/18892

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Re:A cartoon intro to WebAssembly by abstractbeliefs on Tuesday February 28, 2017 @06:16PM (#13759211)
Well, thankfully TFA includes a short paragraph talking about the standardisation of exception handling, so here's hoping to have that resolved soon.
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