From bab3189ae3e5050afd8bcbc81e936a6ee56f0377 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Sat, 11 Jul 2026 16:33:56 +0100
Subject: Add array access to Java AST

---
 .../compiler/output/lang/java/JavaWriterTests.java | 12 ++++++
 .../lang/java/ast/JavaArrayAccessMatcher.java      | 45 ++++++++++++++++++++++
 2 files changed, 57 insertions(+)
 create mode 100644 src/test/java/org/zwobble/hobgoblin/compiler/output/lang/java/ast/JavaArrayAccessMatcher.java

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

diff --git a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/java/JavaWriterTests.java b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/java/JavaWriterTests.java
index f768827..b26b8f5 100644
--- a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/java/JavaWriterTests.java
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/java/JavaWriterTests.java
@@ -1074,6 +1074,18 @@ public class JavaWriterTests {
 
     // === Binary operations ===
 
+    @Test
+    public void arrayAccess() throws IOException {
+        var java = JavaArrayAccess.arbitrary()
+            .withArrayReference(JavaRef.arbitrary().withName(JavaIdentifier.of("x")))
+            .withIndex(JavaIntegerLiteral.arbitrary().withValue(42))
+            .build();
+
+        var string = write(writer -> writer.writeTopLevelExpression(java));
+
+        assertThat(string, equalTo("x[42]"));
+    }
+
     @Test
     public void binaryOperationAdd() throws IOException {
         var java = new JavaBinaryOperation(
diff --git a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/java/ast/JavaArrayAccessMatcher.java b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/java/ast/JavaArrayAccessMatcher.java
new file mode 100644
index 0000000..1d6887e
--- /dev/null
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/java/ast/JavaArrayAccessMatcher.java
@@ -0,0 +1,45 @@
+// Generated by hobgoblin.
+
+package org.zwobble.hobgoblin.compiler.output.lang.java.ast;
+
+// Custom area start: org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaArrayAccessMatcher imports
+// Custom area end: org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaArrayAccessMatcher imports
+
+public class JavaArrayAccessMatcher implements org.zwobble.precisely.Matcher<java.lang.Object> {
+    public static org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaArrayAccessMatcher isJavaArrayAccess() {
+        return new org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaArrayAccessMatcher(java.util.List.of());
+    }
+
+    private final java.util.List<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaArrayAccess>> submatchers;
+
+    private JavaArrayAccessMatcher(java.util.List<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaArrayAccess>> 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.java.ast.JavaArrayAccess.class, this.submatchers);
+    }
+
+    public org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaArrayAccessMatcher withArrayReference(org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaExpression> arrayReference) {
+        var submatchers = new java.util.ArrayList<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaArrayAccess>>(this.submatchers);
+        submatchers.add(org.zwobble.precisely.Matchers.has("arrayReference", org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaArrayAccess::arrayReference, arrayReference));
+        return new org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaArrayAccessMatcher(submatchers);
+    }
+
+    public org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaArrayAccessMatcher withIndex(org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaExpression> index) {
+        var submatchers = new java.util.ArrayList<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaArrayAccess>>(this.submatchers);
+        submatchers.add(org.zwobble.precisely.Matchers.has("index", org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaArrayAccess::index, index));
+        return new org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaArrayAccessMatcher(submatchers);
+    }
+
+    // Custom area start: org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaArrayAccessMatcher body
+    // Custom area end: org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaArrayAccessMatcher body
+}
-- 
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