From 6cb75452ad193e1e40a092478ab527513a7e2bda Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Tue, 14 Jul 2026 19:39:31 +0100
Subject: Add attributes to Rust structs

---
 .../compiler/output/lang/rust/RustWriterTests.java | 19 +++++++++++
 .../lang/rust/ast/RustOuterAttributeMatcher.java   | 39 ++++++++++++++++++++++
 .../lang/rust/ast/RustStructStructMatcher.java     |  6 ++++
 3 files changed, 64 insertions(+)
 create mode 100644 src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustOuterAttributeMatcher.java

(limited to 'src/test/java/org/zwobble')

diff --git a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustWriterTests.java b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustWriterTests.java
index 33fa490..b591058 100644
--- a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustWriterTests.java
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/RustWriterTests.java
@@ -109,6 +109,25 @@ public class RustWriterTests {
             }"""));
     }
 
+    @Test
+    public void structWithAttributes() throws IOException {
+        var rust = RustStructStruct.arbitrary()
+            .withName(new RustIdentifier("Rectangle"))
+            .withAttributes(List.of(
+                new RustOuterAttribute(RustTypePath.of("a", "b", "C")),
+                new RustOuterAttribute(RustTypePath.of("Debug"))
+            ))
+            .build();
+
+        var string = write(writer -> writer.writeItem(rust));
+
+        assertThat(string, equalTo("""
+            #[a::b::C]
+            #[Debug]
+            pub struct Rectangle {
+            }"""));
+    }
+
     @Test
     public void structWithFields() throws IOException {
         var rust = RustStructStruct.arbitrary()
diff --git a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustOuterAttributeMatcher.java b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustOuterAttributeMatcher.java
new file mode 100644
index 0000000..6e1e930
--- /dev/null
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustOuterAttributeMatcher.java
@@ -0,0 +1,39 @@
+// Generated by hobgoblin.
+
+package org.zwobble.hobgoblin.compiler.output.lang.rust.ast;
+
+// Custom area start: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustOuterAttributeMatcher imports
+// Custom area end: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustOuterAttributeMatcher imports
+
+public class RustOuterAttributeMatcher implements org.zwobble.precisely.Matcher<java.lang.Object> {
+    public static org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustOuterAttributeMatcher isRustOuterAttribute() {
+        return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustOuterAttributeMatcher(java.util.List.of());
+    }
+
+    private final java.util.List<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustOuterAttribute>> submatchers;
+
+    private RustOuterAttributeMatcher(java.util.List<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustOuterAttribute>> submatchers) {
+        this.submatchers = submatchers;
+    }
+
+    public org.zwobble.precisely.MatchResult match(java.lang.Object actual) {
+        return this.toMatcher().match(actual);
+    }
+
+    public org.zwobble.precisely.TextTree describe() {
+        return this.toMatcher().describe();
+    }
+
+    private org.zwobble.precisely.Matcher<java.lang.Object> toMatcher() {
+        return org.zwobble.precisely.Matchers.instanceOf(org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustOuterAttribute.class, this.submatchers);
+    }
+
+    public org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustOuterAttributeMatcher withPath(org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustTypePath> path) {
+        var submatchers = new java.util.ArrayList<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustOuterAttribute>>(this.submatchers);
+        submatchers.add(org.zwobble.precisely.Matchers.has("path", org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustOuterAttribute::path, path));
+        return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustOuterAttributeMatcher(submatchers);
+    }
+
+    // Custom area start: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustOuterAttributeMatcher body
+    // Custom area end: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustOuterAttributeMatcher body
+}
diff --git a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustStructStructMatcher.java b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustStructStructMatcher.java
index 0301dbb..4c4aa6a 100644
--- a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustStructStructMatcher.java
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustStructStructMatcher.java
@@ -28,6 +28,12 @@ public class RustStructStructMatcher implements org.zwobble.precisely.Matcher<ja
         return org.zwobble.precisely.Matchers.instanceOf(org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructStruct.class, this.submatchers);
     }
 
+    public org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructStructMatcher withAttributes(org.zwobble.precisely.Matcher<? super java.util.List<org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustOuterAttribute>> attributes) {
+        var submatchers = new java.util.ArrayList<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructStruct>>(this.submatchers);
+        submatchers.add(org.zwobble.precisely.Matchers.has("attributes", org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructStruct::attributes, attributes));
+        return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructStructMatcher(submatchers);
+    }
+
     public org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructStructMatcher withName(org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustIdentifier> name) {
         var submatchers = new java.util.ArrayList<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructStruct>>(this.submatchers);
         submatchers.add(org.zwobble.precisely.Matchers.has("name", org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructStruct::name, name));
-- 
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