I would like people to be able to compile as much of the C++ library as possible with wasm. If someone is interested in this project, it seems like starting to set up some build and tests scripts to help would be a good step to take (also compiling all the dependencies is probably a pretty good sized job)
On Tue, Feb 19, 2019 at 1:47 PM Sebastien Binet <bi...@cern.ch> wrote: > > Franco, > > On Tue, Feb 19, 2019 at 8:31 PM Brian Hulette <hulet...@gmail.com> wrote: > > > Hi Franco, > > I'm not aware of anyone trying this in Rust, but Tim Paine at JPMC recently > > contributed a patch [1] to make it possible to compile the C++ > > implementation with emscripten, so that he could use it in Perspective [2]. > > Could you use the C++ lib instead? > > > > It would be great if either implementation could target WebAssembly though > > - do any Rust contributors know more about the libc/wasm issue? Maybe the > > rustwasm community [3] could be of assistance? > > > > there's also the Go backend :) > I've just tried compiling this example: > - https://godoc.org/github.com/apache/arrow/go/arrow#example-package--Table > to wasm. > compilation went fine: > > $> GOOS=js GOARCH=wasm go build -o foo.wasm foo.go > $> go-wasm ./foo.wasm > rec[0]["f1-i32"]: [1 2 3 4 5] > rec[0]["f2-f64"]: [1 2 3 4 5] > rec[1]["f1-i32"]: [6 7 8 (null) 10] > rec[1]["f2-f64"]: [6 7 8 9 10] > rec[2]["f1-i32"]: [11 12 13 14 15] > rec[2]["f2-f64"]: [11 12 13 14 15] > rec[3]["f1-i32"]: [16 17 18 19 20] > rec[3]["f2-f64"]: [16 17 18 19 20] > > and it ran fine once this patch was added: > - https://github.com/apache/arrow/pull/3707 > > hth, > -s > > PS: go-wasm is an alias of mine for this file: > https://github.com/golang/go/blob/master/misc/wasm/go_js_wasm_exec > > > > Brian > > > > [1] https://github.com/apache/arrow/pull/3350 > > [2] https://github.com/jpmorganchase/perspective > > [3] https://github.com/rustwasm/team > > > > On Tue, Feb 19, 2019 at 11:06 AM Franco Nicolas Bellomo < > > fnbell...@gmail.com> > > wrote: > > > > > Hi! > > > > > > Actually, Apache Arrow have a really nice implementation on Rust. I > > > try to compile this to webAssembly but I have a problem with libc. I > > > understand that this is a general problem of libc and wasm. > > > In the road map of Arrow, you plan support wasm? > > > > > > Thanks!! > > > > >
