Apply must_use to the bindgen function

crates/libs/bindgen/src/lib.rs

@@ -54,6 +54,7 @@ use method_names::*;
 
 /// The Windows code generator.
 #[track_caller]
+#[must_use]
 pub fn bindgen<I, S>(args: I) -> Warnings
 where
     I: IntoIterator<Item = S>,

crates/samples/components/json_validator_winrt/build.rs

@@ -31,5 +31,6 @@ fn main() {
         "Sample",
         "--flat",
         "--implement",
-    ]);
+    ])
+    .unwrap();
 }

crates/samples/components/json_validator_winrt_client/build.rs

@@ -8,5 +8,6 @@ fn main() {
         "--filter",
         "Sample",
         "--flat",
-    ]);
+    ])
+    .unwrap();
 }

crates/tests/misc/component/build.rs

@@ -33,5 +33,6 @@ fn main() {
         "--no-comment",
         "--reference",
         "windows",
-    ]);
+    ])
+    .unwrap();
 }

crates/tests/misc/component_client/build.rs

@@ -11,5 +11,6 @@ fn main() {
         "--flat",
         "--reference",
         "windows",
-    ]);
+    ])
+    .unwrap();
 }

crates/tests/winrt/collection_interop/build.rs

@@ -40,7 +40,8 @@ fn main() {
         "--no-comment",
         "--reference",
         "windows_collections,flat,Windows",
-    ]);
+    ])
+    .unwrap();
 
     let include = std::env::var("OUT_DIR").unwrap();
 

crates/tests/winrt/composable/build.rs

@@ -29,5 +29,6 @@ fn main() {
         "--implement",
         "--no-comment",
         "--flat",
-    ]);
+    ])
+    .unwrap();
 }

crates/tests/winrt/composable_client/build.rs

@@ -16,7 +16,8 @@ fn main() {
         "test_composable",
         "--no-comment",
         "--flat",
-    ]);
+    ])
+    .unwrap();
 
     let include = std::env::var("OUT_DIR").unwrap();
 

crates/tests/winrt/constructors/build.rs

@@ -29,5 +29,6 @@ fn main() {
         "--implement",
         "--no-comment",
         "--flat",
-    ]);
+    ])
+    .unwrap();
 }

crates/tests/winrt/constructors_client/build.rs

@@ -16,7 +16,8 @@ fn main() {
         "test_constructors",
         "--no-comment",
         "--flat",
-    ]);
+    ])
+    .unwrap();
 
     let include = std::env::var("OUT_DIR").unwrap();
 

crates/tests/winrt/events/build.rs

@@ -33,5 +33,6 @@ fn main() {
         "--flat",
         "--reference",
         "windows",
-    ]);
+    ])
+    .unwrap();
 }

crates/tests/winrt/events_client/build.rs

@@ -13,5 +13,6 @@ fn main() {
         "--flat",
         "--reference",
         "windows",
-    ]);
+    ])
+    .unwrap();
 }

crates/tests/winrt/noexcept/build.rs

@@ -38,7 +38,8 @@ fn main() {
         "--implement",
         "--flat",
         "--no-comment",
-    ]);
+    ])
+    .unwrap();
 
     let include = std::env::var("OUT_DIR").unwrap();
 

crates/tests/winrt/overloads/build.rs

@@ -29,5 +29,6 @@ fn main() {
         "--implement",
         "--no-comment",
         "--flat",
-    ]);
+    ])
+    .unwrap();
 }

crates/tests/winrt/overloads_client/build.rs

@@ -9,5 +9,6 @@ fn main() {
         "test_overloads",
         "--no-comment",
         "--flat",
-    ]);
+    ])
+    .unwrap();
 }

crates/tests/winrt/ref_params/build.rs

@@ -38,7 +38,8 @@ fn main() {
         "--implement",
         "--flat",
         "--no-comment",
-    ]);
+    ])
+    .unwrap();
 
     let include = std::env::var("OUT_DIR").unwrap();
 

crates/tests/winrt/reference/build.rs

@@ -31,5 +31,6 @@ fn main() {
         "--flat",
         "--reference",
         "windows",
-    ]);
+    ])
+    .unwrap();
 }

crates/tests/winrt/reference_client/build.rs

@@ -11,5 +11,6 @@ fn main() {
         "--flat",
         "--reference",
         "windows",
-    ]);
+    ])
+    .unwrap();
 }

crates/tests/winrt/reference_custom/build.rs

@@ -20,7 +20,7 @@ fn main() {
         panic!("Failed to run midlrt");
     }
 
-    windows_bindgen::bindgen([
+    _ = windows_bindgen::bindgen([
         "--in",
         "default",
         "test.winmd",

crates/tests/winrt/reference_float/build.rs

@@ -18,7 +18,7 @@ fn main() {
         panic!("Failed to run midlrt");
     }
 
-    windows_bindgen::bindgen([
+    _ = windows_bindgen::bindgen([
         "--in",
         "metadata.winmd",
         "../../../libs/bindgen/default",

crates/tests/winrt/reference_no_deps/build.rs

@@ -20,7 +20,7 @@ fn main() {
         panic!("Failed to run midlrt");
     }
 
-    windows_bindgen::bindgen([
+    _ = windows_bindgen::bindgen([
         "--in",
         "default",
         "test.winmd",

crates/tests/winrt/reference_no_windows/build.rs

@@ -32,5 +32,6 @@ fn main() {
         "--implement",
         "--flat",
         "--no-comment",
-    ]);
+    ])
+    .unwrap();
 }

crates/tests/winrt/reference_windows/build.rs

@@ -33,5 +33,6 @@ fn main() {
         "--no-comment",
         "--reference",
         "windows",
-    ]);
+    ])
+    .unwrap();
 }

crates/tools/bindgen/src/main.rs

@@ -6,11 +6,11 @@ use windows_bindgen::bindgen;
 fn test(args: &str) {
     let mut expand = vec!["--no-comment", "--in", "default", "--flat"];
     expand.extend(args.split_whitespace());
-    bindgen(expand);
+    _ = bindgen(expand);
 }
 
 fn test_raw(args: &str) {
-    bindgen(args.split_whitespace());
+    _ = bindgen(args.split_whitespace());
 }
 
 fn main() {

crates/tools/bindings/src/main.rs

@@ -17,8 +17,8 @@ fn main() {
     bindgen(["--etc", "crates/tools/bindings/src/threading.txt"]).unwrap();
     bindgen(["--etc", "crates/tools/bindings/src/services.txt"]).unwrap();
 
-    bindgen(["--etc", "crates/tools/bindings/src/sys.txt"]);
-    bindgen(["--etc", "crates/tools/bindings/src/windows.txt"]);
+    _ = bindgen(["--etc", "crates/tools/bindings/src/sys.txt"]);
+    _ = bindgen(["--etc", "crates/tools/bindings/src/windows.txt"]);
 
     println!("Finished in {:.2}s", time.elapsed().as_secs_f32());
 }

crates/tools/standalone/src/main.rs

@@ -228,7 +228,7 @@ fn write_win(output: &Path, filter: &[&str]) {
     args.extend_from_slice(&["--no-comment"]);
     args.extend_from_slice(&["--flat"]);
     println!("running: bindgen {}", args.join(" "));
-    windows_bindgen::bindgen(args);
+    _ = windows_bindgen::bindgen(args);
 }
 
 fn write_no_inner_attr(output: &Path, filter: &[&str]) {
@@ -246,5 +246,5 @@ fn bindgen(output: &Path, filter: &[&str], config: &[&str]) {
     args.extend_from_slice(&["--no-comment"]);
     args.extend_from_slice(config);
     println!("running: bindgen {}", args.join(" "));
-    windows_bindgen::bindgen(args);
+    _ = windows_bindgen::bindgen(args);
 }