From 87fd2998a124e2455dd4d326f09a65cd0e82e720 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Thu, 2 Jul 2026 13:27:13 +0100
Subject: Add Java local variable declaration

---
 .../compiler/output/lang/java/JavaWriterTests.java | 12 +++++++
 .../ast/JavaLocalVariableDeclarationMatcher.java   | 41 ++++++++++++++++++++++
 2 files changed, 53 insertions(+)
 create mode 100644 src/test/java/org/zwobble/hobgoblin/compiler/output/lang/java/ast/JavaLocalVariableDeclarationMatcher.java

(limited to 'src/test')

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 cd74430..3967c2b 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
@@ -769,6 +769,18 @@ public class JavaWriterTests {
         assertThat(string, equalTo("42;"));
     }
 
+    @Test
+    public void localVariableDeclaration() throws IOException {
+        var java = JavaLocalVariableDeclaration.arbitrary()
+            .withName(JavaIdentifier.of("count"))
+            .withInitializer(new JavaIntegerLiteral(42))
+            .build();
+
+        var string = write(writer -> writer.writeBlockStatement(java));
+
+        assertThat(string, equalTo("var count = 42;"));
+    }
+
     @Test
     public void returnStatement() throws IOException {
         var java = new JavaReturn(new JavaIntegerLiteral(42));
diff --git a/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/java/ast/JavaLocalVariableDeclarationMatcher.java b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/java/ast/JavaLocalVariableDeclarationMatcher.java
new file mode 100644
index 0000000..24fa147
--- /dev/null
+++ b/src/test/java/org/zwobble/hobgoblin/compiler/output/lang/java/ast/JavaLocalVariableDeclarationMatcher.java
@@ -0,0 +1,41 @@
+// Generated by hobgoblin.
+
+package org.zwobble.hobgoblin.compiler.output.lang.java.ast;
+
+// Custom area start: org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaLocalVariableDeclarationMatcher imports
+// Custom area end: org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaLocalVariableDeclarationMatcher imports
+
+public class JavaLocalVariableDeclarationMatcher implements org.zwobble.precisely.Matcher<java.lang.Object> {
+    public static org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaLocalVariableDeclarationMatcher isJavaLocalVariableDeclaration() {
+        return new org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaLocalVariableDeclarationMatcher(java.util.List.of());
+    }
+
+    private final java.util.List<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaLocalVariableDeclaration>> submatchers;
+
+    private JavaLocalVariableDeclarationMatcher(java.util.List<org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaLocalVariableDeclaration>> 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.JavaLocalVariableDeclaration.class, this.submatchers);
+    }
+
+    public org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaLocalVariableDeclarationMatcher withName(org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaIdentifier> name) {
+        return new org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaLocalVariableDeclarationMatcher(java.util.stream.Stream.concat(this.submatchers.stream(), java.util.stream.Stream.of(org.zwobble.precisely.Matchers.has("name", org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaLocalVariableDeclaration::name, name))).toList());
+    }
+
+    public org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaLocalVariableDeclarationMatcher withInitializer(org.zwobble.precisely.Matcher<? super org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaExpression> initializer) {
+        return new org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaLocalVariableDeclarationMatcher(java.util.stream.Stream.concat(this.submatchers.stream(), java.util.stream.Stream.of(org.zwobble.precisely.Matchers.has("initializer", org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaLocalVariableDeclaration::initializer, initializer))).toList());
+    }
+
+    // Custom area start: org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaLocalVariableDeclarationMatcher body
+    // Custom area end: org.zwobble.hobgoblin.compiler.output.lang.java.ast.JavaLocalVariableDeclarationMatcher body
+}
-- 
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