Provide attribute macro for multiple HTTP methods (#1674)

Co-authored-by: Rob Ede <robjtede@icloud.com>

actix-web-codegen/tests/trybuild/route-duplicate-method-fail.rs

@@ -0,0 +1,15 @@
+use actix_web::*;
+
+#[route("/", method="GET", method="GET")]
+async fn index() -> impl Responder {
+    HttpResponse::Ok()
+}
+
+#[actix_web::main]
+async fn main() {
+    let srv = test::start(|| App::new().service(index));
+
+    let request = srv.get("/");
+    let response = request.send().await.unwrap();
+    assert!(response.status().is_success());
+}

actix-web-codegen/tests/trybuild/route-duplicate-method-fail.stderr

@@ -0,0 +1,11 @@
+error: HTTP Method defined more than once: `GET`
+ --> $DIR/route-duplicate-method-fail.rs:3:35
+  |
+3 | #[route("/", method="GET", method="GET")]
+  |                                   ^^^^^
+
+error[E0425]: cannot find value `index` in this scope
+  --> $DIR/route-duplicate-method-fail.rs:10:49
+   |
+10 |     let srv = test::start(|| App::new().service(index));
+   |                                                 ^^^^^ not found in this scope

actix-web-codegen/tests/trybuild/route-missing-method-fail-msrv.rs

@@ -0,0 +1,15 @@
+use actix_web::*;
+
+#[route("/")]
+async fn index() -> impl Responder {
+    HttpResponse::Ok()
+}
+
+#[actix_web::main]
+async fn main() {
+    let srv = test::start(|| App::new().service(index));
+
+    let request = srv.get("/");
+    let response = request.send().await.unwrap();
+    assert!(response.status().is_success());
+}

actix-web-codegen/tests/trybuild/route-missing-method-fail-msrv.stderr

@@ -0,0 +1,11 @@
+error: The #[route(..)] macro requires at least one `method` attribute
+ --> $DIR/route-missing-method-fail-msrv.rs:3:1
+  |
+3 | #[route("/")]
+  | ^^^^^^^^^^^^^
+
+error[E0425]: cannot find value `index` in this scope
+  --> $DIR/route-missing-method-fail-msrv.rs:10:49
+   |
+10 |     let srv = test::start(|| App::new().service(index));
+   |                                                 ^^^^^ not found in this scope

actix-web-codegen/tests/trybuild/route-missing-method-fail.rs

@@ -0,0 +1,15 @@
+use actix_web::*;
+
+#[route("/")]
+async fn index() -> impl Responder {
+    HttpResponse::Ok()
+}
+
+#[actix_web::main]
+async fn main() {
+    let srv = test::start(|| App::new().service(index));
+
+    let request = srv.get("/");
+    let response = request.send().await.unwrap();
+    assert!(response.status().is_success());
+}

actix-web-codegen/tests/trybuild/route-missing-method-fail.stderr

@@ -0,0 +1,13 @@
+error: The #[route(..)] macro requires at least one `method` attribute
+ --> $DIR/route-missing-method-fail.rs:3:1
+  |
+3 | #[route("/")]
+  | ^^^^^^^^^^^^^
+  |
+  = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error[E0425]: cannot find value `index` in this scope
+  --> $DIR/route-missing-method-fail.rs:10:49
+   |
+10 |     let srv = test::start(|| App::new().service(index));
+   |                                                 ^^^^^ not found in this scope

actix-web-codegen/tests/trybuild/route-ok.rs

@@ -0,0 +1,15 @@
+use actix_web::*;
+
+#[route("/", method="GET", method="HEAD")]
+async fn index() -> impl Responder {
+    HttpResponse::Ok()
+}
+
+#[actix_web::main]
+async fn main() {
+    let srv = test::start(|| App::new().service(index));
+
+    let request = srv.get("/");
+    let response = request.send().await.unwrap();
+    assert!(response.status().is_success());
+}

actix-web-codegen/tests/trybuild/route-unexpected-method-fail.rs

@@ -0,0 +1,15 @@
+use actix_web::*;
+
+#[route("/", method="UNEXPECTED")]
+async fn index() -> impl Responder {
+    HttpResponse::Ok()
+}
+
+#[actix_web::main]
+async fn main() {
+    let srv = test::start(|| App::new().service(index));
+
+    let request = srv.get("/");
+    let response = request.send().await.unwrap();
+    assert!(response.status().is_success());
+}

actix-web-codegen/tests/trybuild/route-unexpected-method-fail.stderr

@@ -0,0 +1,11 @@
+error: Unexpected HTTP Method: `UNEXPECTED`
+ --> $DIR/route-unexpected-method-fail.rs:3:21
+  |
+3 | #[route("/", method="UNEXPECTED")]
+  |                     ^^^^^^^^^^^^
+
+error[E0425]: cannot find value `index` in this scope
+  --> $DIR/route-unexpected-method-fail.rs:10:49
+   |
+10 |     let srv = test::start(|| App::new().service(index));
+   |                                                 ^^^^^ not found in this scope