Wasm only compile error: function is already defined:internal/bytealg.CountString

[justinclift]

With current TinyGo dev branch, using strings.Split() causes a compile failure when compiling to wasm:

$ tinygo build -target wasm -o foo main.go
../../../../../../../usr/local/go/src/internal/bytealg/count_generic.go:19:6: function is already defined:internal/bytealg.CountString
$ go version
go version go1.13.4 linux/amd64

The compile failure only happens when the target is wasm. Without -target wasm, the compilation will succeed.

A minimal 100% reproducer:

package main

import (
	"strings"
)

func main() {
	s := strings.Split("An example string", "\n")
	println(len(s))
}

[justinclift]

That reproducer also fails when run in the TinyGo playground, so it's not just me (wasn't sure). 😄

[aykevl]

I think this problem was introduced with the following PR: #424

[justinclift]

Thanks @aykevl, #424 did fix this. 😄