refactor: use target_arch instead of target_os for wasm cfg's

As far as I can tell, this is equivalent and less verbose.

Pull-Request: #3572.

libp2p/Cargo.toml

@@ -113,7 +113,7 @@ libp2p-yamux = { version = "0.43.0", path = "../muxers/yamux", optional = true }
 multiaddr = { version = "0.17.0" }
 pin-project = "1.0.0"
 
-[target.'cfg(not(any(target_os = "emscripten", target_os = "wasi", target_os = "unknown")))'.dependencies]
+[target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 libp2p-deflate = { version = "0.39.0", path = "../transports/deflate", optional = true }
 libp2p-dns = { version = "0.39.0", path = "../transports/dns", optional = true }
 libp2p-mdns = { version = "0.43.0", path = "../protocols/mdns", optional = true }

libp2p/src/lib.rs

@@ -49,12 +49,12 @@ pub use libp2p_core as core;
 #[doc(inline)]
 pub use libp2p_dcutr as dcutr;
 #[cfg(feature = "deflate")]
-#[cfg(not(any(target_os = "emscripten", target_os = "wasi", target_os = "unknown")))]
+#[cfg(not(target_arch = "wasm32"))]
 #[doc(inline)]
 pub use libp2p_deflate as deflate;
 #[cfg(feature = "dns")]
 #[cfg_attr(docsrs, doc(cfg(feature = "dns")))]
-#[cfg(not(any(target_os = "emscripten", target_os = "wasi", target_os = "unknown")))]
+#[cfg(not(target_arch = "wasm32"))]
 #[doc(inline)]
 pub use libp2p_dns as dns;
 #[cfg(feature = "floodsub")]
@@ -71,7 +71,7 @@ pub use libp2p_identify as identify;
 #[doc(inline)]
 pub use libp2p_kad as kad;
 #[cfg(feature = "mdns")]
-#[cfg(not(any(target_os = "emscripten", target_os = "wasi", target_os = "unknown")))]
+#[cfg(not(target_arch = "wasm32"))]
 #[cfg_attr(docsrs, doc(cfg(feature = "mdns")))]
 #[doc(inline)]
 pub use libp2p_mdns as mdns;
@@ -94,7 +94,7 @@ pub use libp2p_plaintext as plaintext;
 #[doc(inline)]
 pub use libp2p_pnet as pnet;
 #[cfg(feature = "quic")]
-#[cfg(not(any(target_os = "emscripten", target_os = "wasi", target_os = "unknown")))]
+#[cfg(not(target_arch = "wasm32"))]
 #[doc(inline)]
 pub use libp2p_quic as quic;
 #[cfg(feature = "relay")]
@@ -109,30 +109,30 @@ pub use libp2p_request_response as request_response;
 #[doc(inline)]
 pub use libp2p_swarm as swarm;
 #[cfg(feature = "tcp")]
-#[cfg(not(any(target_os = "emscripten", target_os = "wasi", target_os = "unknown")))]
+#[cfg(not(target_arch = "wasm32"))]
 #[cfg_attr(docsrs, doc(cfg(feature = "tcp")))]
 #[doc(inline)]
 pub use libp2p_tcp as tcp;
 #[cfg(feature = "tls")]
 #[cfg_attr(docsrs, doc(cfg(feature = "tls")))]
-#[cfg(not(any(target_os = "emscripten", target_os = "wasi", target_os = "unknown")))]
+#[cfg(not(target_arch = "wasm32"))]
 #[doc(inline)]
 pub use libp2p_tls as tls;
 #[cfg(feature = "uds")]
 #[cfg_attr(docsrs, doc(cfg(feature = "uds")))]
-#[cfg(not(any(target_os = "emscripten", target_os = "wasi", target_os = "unknown")))]
+#[cfg(not(target_arch = "wasm32"))]
 #[doc(inline)]
 pub use libp2p_uds as uds;
 #[cfg(feature = "wasm-ext")]
 #[doc(inline)]
 pub use libp2p_wasm_ext as wasm_ext;
 #[cfg(feature = "webrtc")]
 #[cfg_attr(docsrs, doc(cfg(feature = "webrtc")))]
-#[cfg(not(any(target_os = "emscripten", target_os = "wasi", target_os = "unknown")))]
+#[cfg(not(target_arch = "wasm32"))]
 #[doc(inline)]
 pub use libp2p_webrtc as webrtc;
 #[cfg(feature = "websocket")]
-#[cfg(not(any(target_os = "emscripten", target_os = "wasi", target_os = "unknown")))]
+#[cfg(not(target_arch = "wasm32"))]
 #[doc(inline)]
 pub use libp2p_websocket as websocket;
 #[cfg(feature = "yamux")]
@@ -168,7 +168,7 @@ pub use self::transport_ext::TransportExt;
 /// > **Note**: This `Transport` is not suitable for production usage, as its implementation
 /// >           reserves the right to support additional protocols or remove deprecated protocols.
 #[cfg(all(
-    not(any(target_os = "emscripten", target_os = "wasi", target_os = "unknown")),
+    not(target_arch = "wasm32"),
     any(
         all(feature = "tcp-async-io", feature = "dns-async-std"),
         all(feature = "tcp", feature = "dns", feature = "async-std")
@@ -228,7 +228,7 @@ pub async fn development_transport(
 /// > **Note**: This `Transport` is not suitable for production usage, as its implementation
 /// >           reserves the right to support additional protocols or remove deprecated protocols.
 #[cfg(all(
-    not(any(target_os = "emscripten", target_os = "wasi", target_os = "unknown")),
+    not(target_arch = "wasm32"),
     any(
         all(feature = "tcp-tokio", feature = "dns-tokio"),
         all(feature = "tcp", feature = "dns", feature = "tokio")