3 files changed, 115 insertions, 0 deletions
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 5cb711a..c766157 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
@@ -644,6 +644,31 @@ public class RustWriterTests {
             }"""));
     }
 
+    // === Match expressions ===
+
+    @Test
+    public void matchExpression() throws IOException {
+        var rust = RustMatchExpression.arbitrary()
+            .withScrutinee(RustPath.of("x"))
+            .addArm(RustMatchArm.arbitrary()
+                .withPattern(RustPathPattern.arbitrary().withPath(RustPath.of("X", "Y")))
+                .withBody(RustIntegerLiteral.arbitrary().withValue(1))
+            )
+            .addArm(RustMatchArm.arbitrary()
+                .withPattern(RustWildcardPattern.arbitrary())
+                .withBody(RustIntegerLiteral.arbitrary().withValue(2))
+            )
+            .build();
+
+        var string = write(writer -> writer.writeTopLevelExpression(rust));
+
+        assertThat(string, equalTo("""
+            match x {
+                X::Y => 1,
+                _ => 2,
+            }"""));
+    }
+
     // === Prefix expressions ===
 
     @Test
diff --git a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustMatchArmMatcher.java b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustMatchArmMatcher.java
new file mode 100644
index 0000000..697f6c5
--- /dev/null
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustMatchArmMatcher.java
@@ -0,0 +1,45 @@
+// Generated by hobgoblin.
+
+package org.zwobble.hobgoblin.compiler.output.lang.rust.ast;
+
+// Custom area start: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchArmMatcher imports
+// Custom area end: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchArmMatcher imports
+
+public class RustMatchArmMatcher implements org.zwobble.precisely.Matcher<java.lang.Object> {
+    public static org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchArmMatcher isRustMatchArm() {
+        return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchArmMatcher(java.util.List.of());
+    }
+
+    private final java.util.List<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchArm>> submatchers;
+
+    private RustMatchArmMatcher(java.util.List<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchArm>> 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.RustMatchArm.class, this.submatchers);
+    }
+
+    public org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchArmMatcher withPattern(org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustPattern> pattern) {
+        var submatchers = new java.util.ArrayList<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchArm>>(this.submatchers);
+        submatchers.add(org.zwobble.precisely.Matchers.has("pattern", org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchArm::pattern, pattern));
+        return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchArmMatcher(submatchers);
+    }
+
+    public org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchArmMatcher withBody(org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustExpression> body) {
+        var submatchers = new java.util.ArrayList<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchArm>>(this.submatchers);
+        submatchers.add(org.zwobble.precisely.Matchers.has("body", org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchArm::body, body));
+        return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchArmMatcher(submatchers);
+    }
+
+    // Custom area start: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchArmMatcher body
+    // Custom area end: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchArmMatcher body
+}
diff --git a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustMatchExpressionMatcher.java b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustMatchExpressionMatcher.java
new file mode 100644
index 0000000..8dcee56
--- /dev/null
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustMatchExpressionMatcher.java
@@ -0,0 +1,45 @@
+// Generated by hobgoblin.
+
+package org.zwobble.hobgoblin.compiler.output.lang.rust.ast;
+
+// Custom area start: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchExpressionMatcher imports
+// Custom area end: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchExpressionMatcher imports
+
+public class RustMatchExpressionMatcher implements org.zwobble.precisely.Matcher<java.lang.Object> {
+    public static org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchExpressionMatcher isRustMatchExpression() {
+        return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchExpressionMatcher(java.util.List.of());
+    }
+
+    private final java.util.List<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchExpression>> submatchers;
+
+    private RustMatchExpressionMatcher(java.util.List<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchExpression>> 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.RustMatchExpression.class, this.submatchers);
+    }
+
+    public org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchExpressionMatcher withScrutinee(org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustExpression> scrutinee) {
+        var submatchers = new java.util.ArrayList<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchExpression>>(this.submatchers);
+        submatchers.add(org.zwobble.precisely.Matchers.has("scrutinee", org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchExpression::scrutinee, scrutinee));
+        return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchExpressionMatcher(submatchers);
+    }
+
+    public org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchExpressionMatcher withArms(org.zwobble.precisely.Matcher<? super java.util.List<org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchArm>> arms) {
+        var submatchers = new java.util.ArrayList<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchExpression>>(this.submatchers);
+        submatchers.add(org.zwobble.precisely.Matchers.has("arms", org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchExpression::arms, arms));
+        return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchExpressionMatcher(submatchers);
+    }
+
+    // Custom area start: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchExpressionMatcher body
+    // Custom area end: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustMatchExpressionMatcher body
+}