Test error handling for windows-bindgen crate

.github/workflows/clippy.yml

@@ -137,6 +137,8 @@ jobs:
         run:  cargo clippy -p test_async
       - name: Clippy test_bcrypt
         run:  cargo clippy -p test_bcrypt
+      - name: Clippy test_bindgen
+        run:  cargo clippy -p test_bindgen
       - name: Clippy test_calling_convention
         run:  cargo clippy -p test_calling_convention
       - name: Clippy test_cfg_generic

.github/workflows/test.yml

@@ -163,6 +163,8 @@ jobs:
         run:  cargo test -p test_async --target ${{ matrix.target }} ${{ matrix.etc }}
       - name: Test test_bcrypt
         run:  cargo test -p test_bcrypt --target ${{ matrix.target }} ${{ matrix.etc }}
+      - name: Test test_bindgen
+        run:  cargo test -p test_bindgen --target ${{ matrix.target }} ${{ matrix.etc }}
       - name: Test test_calling_convention
         run:  cargo test -p test_calling_convention --target ${{ matrix.target }} ${{ matrix.etc }}
       - name: Test test_cfg_generic
@@ -253,10 +255,10 @@ jobs:
         run:  cargo test -p test_registry --target ${{ matrix.target }} ${{ matrix.etc }}
       - name: Test test_registry_default
         run:  cargo test -p test_registry_default --target ${{ matrix.target }} ${{ matrix.etc }}
-      - name: Test test_reserved
-        run:  cargo test -p test_reserved --target ${{ matrix.target }} ${{ matrix.etc }}
       - name: Clean
         run:  cargo clean
+      - name: Test test_reserved
+        run:  cargo test -p test_reserved --target ${{ matrix.target }} ${{ matrix.etc }}
       - name: Test test_resources
         run:  cargo test -p test_resources --target ${{ matrix.target }} ${{ matrix.etc }}
       - name: Test test_result

crates/libs/bindgen/Cargo.toml

@@ -24,10 +24,6 @@ metadata = []
 windows-metadata = { path = "../metadata", version = "0.58.0" }
 rayon = "1.7"
 
-[dependencies.syn]
-version = "2.0"
-features = ["full", "extra-traits"]
-
 [dependencies.proc-macro2]
 version = "1.0"
 features = ["span-locations"]

crates/libs/bindgen/src/error.rs

@@ -6,37 +6,13 @@ pub type Result<T> = std::result::Result<T, Error>;
 pub struct Error {
     message: String,
     path: String,
-    span: Option<(usize, usize)>,
-}
-
-impl std::error::Error for Error {}
-
-impl From<Error> for std::io::Error {
-    fn from(error: Error) -> Self {
-        std::io::Error::new(std::io::ErrorKind::Other, error.message.as_str())
-    }
-}
-
-impl From<syn::Error> for Error {
-    fn from(error: syn::Error) -> Self {
-        let start = error.span().start();
-        Self {
-            message: error.to_string(),
-            span: Some((start.line, start.column)),
-            ..Self::default()
-        }
-    }
 }
 
 impl std::fmt::Display for Error {
     fn fmt(&self, fmt: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         writeln!(fmt, "error: {}", self.message)?;
         if !self.path.is_empty() {
-            if let Some((line, column)) = self.span {
-                writeln!(fmt, "  --> {}:{line}:{column}", self.path)?;
-            } else {
-                writeln!(fmt, "  --> {}", self.path)?;
-            }
+            writeln!(fmt, "  --> {}", self.path)?;
         }
         Ok(())
     }

crates/tests/misc/bindgen/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "test_bindgen"
+version = "0.0.0"
+edition = "2021"
+publish = false
+
+[lib]
+doc = false
+doctest = false
+
+[dependencies.windows-bindgen]
+workspace = true

crates/tests/misc/bindgen/src/lib.rs

@@ -0,0 +1 @@
+

crates/tests/misc/bindgen/tests/tests.rs

@@ -0,0 +1,13 @@
+#[test]
+fn test() {
+    let e = windows_bindgen::bindgen(["--etc", "file_not_found.txt"]).unwrap_err();
+
+    assert_eq!(
+        format!("{e}"),
+        "error: failed to read lines\n  --> file_not_found.txt\n"
+    );
+
+    let e = windows_bindgen::bindgen(["-etc"]).unwrap_err();
+
+    assert_eq!(format!("{e}"), "error: invalid option `-etc`\n");
+}