Merge pull request RustPython#311 from nhynes/compile-wasm

Allow compiling VM for wasm32-unknown-unknown

Author: windelbouwman

src/main.rs

@@ -148,12 +148,12 @@ fn shell_exec(
     }
 }
 
-#[cfg(not(target_family = "unix"))]
+#[cfg(not(unix))]
 fn get_history_path() -> PathBuf {
     PathBuf::from(".repl_history.txt")
 }
 
-#[cfg(target_family = "unix")]
+#[cfg(unix)]
 fn get_history_path() -> PathBuf {
     //work around for windows dependent builds. The xdg crate is unix specific
     //so access to the BaseDirectories struct breaks builds on python.

vm/src/stdlib/os.rs

@@ -15,28 +15,28 @@ use crate::obj::objstr;
 use crate::pyobject::{PyContext, PyFuncArgs, PyObjectRef, PyResult, TypeProtocol};
 use crate::vm::VirtualMachine;
 
-#[cfg(target_family = "unix")]
+#[cfg(unix)]
 pub fn raw_file_number(handle: File) -> i64 {
     use std::os::unix::io::IntoRawFd;
 
     i64::from(handle.into_raw_fd())
 }
 
-#[cfg(target_family = "unix")]
+#[cfg(unix)]
 pub fn rust_file(raw_fileno: i64) -> File {
     use std::os::unix::io::FromRawFd;
 
     unsafe { File::from_raw_fd(raw_fileno as i32) }
 }
 
-#[cfg(target_family = "windows")]
+#[cfg(windows)]
 pub fn raw_file_number(handle: File) -> i64 {
     use std::os::windows::io::IntoRawHandle;
 
     handle.into_raw_handle() as i64
 }
 
-#[cfg(target_family = "windows")]
+#[cfg(windows)]
 pub fn rust_file(raw_fileno: i64) -> File {
     use std::ffi::c_void;
     use std::os::windows::io::FromRawHandle;
@@ -45,6 +45,16 @@ pub fn rust_file(raw_fileno: i64) -> File {
     unsafe { File::from_raw_handle(raw_fileno as *mut c_void) }
 }
 
+#[cfg(all(not(unix), not(windows)))]
+pub fn rust_file(raw_fileno: i64) -> File {
+    unimplemented!();
+}
+
+#[cfg(all(not(unix), not(windows)))]
+pub fn raw_file_number(handle: File) -> i64 {
+    unimplemented!();
+}
+
 pub fn os_close(vm: &mut VirtualMachine, args: PyFuncArgs) -> PyResult {
     arg_check!(vm, args, required = [(fileno, Some(vm.ctx.int_type()))]);