add support for wasm

common/buf/readv_posix.go

@@ -1,4 +1,5 @@
 // +build !windows
+// +build !wasm
 
 package buf
 

common/buf/readv_reader.go

@@ -1,3 +1,5 @@
+// +build !wasm
+
 package buf
 
 import (

common/buf/readv_reader_wasm.go

@@ -0,0 +1,12 @@
+package buf
+
+import (
+	"io"
+	"syscall"
+)
+
+const useReadv = false
+
+func NewReadVReader(reader io.Reader, rawConn syscall.RawConn) Reader {
+	panic("not implemented")
+}

common/buf/readv_test.go

@@ -1,3 +1,5 @@
+// +build !wasm
+
 package buf_test
 
 import (

common/buf/readv_windows.go

@@ -1,5 +1,3 @@
-// +build windows
-
 package buf
 
 import (