3 files changed, 124 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 21f8833..67d0a42 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
@@ -480,6 +480,40 @@ public class RustWriterTests {
         assertThat(string, equalTo("x.y"));
     }
 
+    // === Struct expressions ===
+
+    @Test
+    public void structExpressionWithNoFields() throws IOException {
+        var rust = RustStructExpression.arbitrary()
+            .withStructPath(RustPathInExpression.of("A"))
+            .build();
+
+        var string = write(writer -> writer.writeExpression(rust));
+
+        assertThat(string, equalTo("A {}"));
+    }
+
+    @Test
+    public void structExpressionWithFields() throws IOException {
+        var rust = RustStructExpression.arbitrary()
+            .withStructPath(RustPathInExpression.of("X"))
+            .addFieldValue(
+                RustStructExprField.arbitrary()
+                    .withName(RustIdentifier.of("a"))
+                    .withValue(RustPathInExpression.of("b"))
+            )
+            .addFieldValue(
+                RustStructExprField.arbitrary()
+                    .withName(RustIdentifier.of("c"))
+                    .withValue(RustPathInExpression.of("d"))
+            )
+            .build();
+
+        var string = write(writer -> writer.writeExpression(rust));
+
+        assertThat(string, equalTo("X { a: b, c: d }"));
+    }
+
     // == Types ==
 
     @Test
diff --git a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustStructExprFieldMatcher.java b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustStructExprFieldMatcher.java
new file mode 100644
index 0000000..2c8ac77
--- /dev/null
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustStructExprFieldMatcher.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.RustStructExprFieldMatcher imports
+// Custom area end: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExprFieldMatcher imports
+
+public class RustStructExprFieldMatcher implements org.zwobble.precisely.Matcher<java.lang.Object> {
+    public static org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExprFieldMatcher isRustStructExprField() {
+        return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExprFieldMatcher(java.util.List.of());
+    }
+
+    private final java.util.List<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExprField>> submatchers;
+
+    private RustStructExprFieldMatcher(java.util.List<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExprField>> 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.RustStructExprField.class, this.submatchers);
+    }
+
+    public org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExprFieldMatcher 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.RustStructExprField>>(this.submatchers);
+        submatchers.add(org.zwobble.precisely.Matchers.has("name", org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExprField::name, name));
+        return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExprFieldMatcher(submatchers);
+    }
+
+    public org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExprFieldMatcher withValue(org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustExpression> value) {
+        var submatchers = new java.util.ArrayList<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExprField>>(this.submatchers);
+        submatchers.add(org.zwobble.precisely.Matchers.has("value", org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExprField::value, value));
+        return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExprFieldMatcher(submatchers);
+    }
+
+    // Custom area start: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExprFieldMatcher body
+    // Custom area end: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExprFieldMatcher body
+}
diff --git a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustStructExpressionMatcher.java b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustStructExpressionMatcher.java
new file mode 100644
index 0000000..5597d00
--- /dev/null
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/rust/ast/RustStructExpressionMatcher.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.RustStructExpressionMatcher imports
+// Custom area end: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExpressionMatcher imports
+
+public class RustStructExpressionMatcher implements org.zwobble.precisely.Matcher<java.lang.Object> {
+    public static org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExpressionMatcher isRustStructExpression() {
+        return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExpressionMatcher(java.util.List.of());
+    }
+
+    private final java.util.List<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExpression>> submatchers;
+
+    private RustStructExpressionMatcher(java.util.List<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExpression>> 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.RustStructExpression.class, this.submatchers);
+    }
+
+    public org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExpressionMatcher withStructPath(org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustPathInExpression> structPath) {
+        var submatchers = new java.util.ArrayList<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExpression>>(this.submatchers);
+        submatchers.add(org.zwobble.precisely.Matchers.has("structPath", org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExpression::structPath, structPath));
+        return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExpressionMatcher(submatchers);
+    }
+
+    public org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExpressionMatcher withFieldValues(org.zwobble.precisely.Matcher<? super java.util.List<org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExprField>> fieldValues) {
+        var submatchers = new java.util.ArrayList<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExpression>>(this.submatchers);
+        submatchers.add(org.zwobble.precisely.Matchers.has("fieldValues", org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExpression::fieldValues, fieldValues));
+        return new org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExpressionMatcher(submatchers);
+    }
+
+    // Custom area start: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExpressionMatcher body
+    // Custom area end: org.zwobble.hobgoblin.compiler.output.lang.rust.ast.RustStructExpressionMatcher body
+}