From 0b6048e7557748be50881d348448af77f53892fc Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Sat, 8 Mar 2025 13:07:26 +0000
Subject: Compile Patio mutable data declarations into LLVM IR

---
 .../compiler/backends/llvm/codegen/PatioToLlvm.java  | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

(limited to 'src/main/java')

diff --git a/src/main/java/org/shedlang/compiler/backends/llvm/codegen/PatioToLlvm.java b/src/main/java/org/shedlang/compiler/backends/llvm/codegen/PatioToLlvm.java
index 4d838b34..a93b9337 100644
--- a/src/main/java/org/shedlang/compiler/backends/llvm/codegen/PatioToLlvm.java
+++ b/src/main/java/org/shedlang/compiler/backends/llvm/codegen/PatioToLlvm.java
@@ -170,7 +170,8 @@ public class PatioToLlvm {
                 generateDataElementImmutableDefinition(patioDataElementImmutableDefinition, context);
 
             case PatioDataElementMutableDeclaration patioDataElementMutableDeclaration ->
-                throw new UnsupportedOperationException("TODO");
+                // TODO: how to test this?
+                generateDataElementMutableDeclaration(patioDataElementMutableDeclaration, context);
 
             case PatioDataElementMutableDefinition patioDataElementMutableDefinition ->
                 generateDataElementMutableDefinition(patioDataElementMutableDefinition, context);
@@ -206,6 +207,23 @@ public class PatioToLlvm {
         ));
     }
 
+    private static PatioToLlvmModuleContext generateDataElementMutableDeclaration(
+        PatioDataElementMutableDeclaration patioDataElementMutableDeclaration,
+        PatioToLlvmModuleContext context
+    ) {
+        return context.addTopLevelEntity(new LlvmGlobalDefinition(
+            patioDataElementMutableDeclaration.name(),
+            patioDataLayoutToLlvmType(
+                patioDataElementMutableDeclaration.layout(),
+                context.target()
+            ),
+            Optional.empty(),
+            false,
+            false,
+            true
+        ));
+    }
+
     private static PatioToLlvmModuleContext generateDataElementMutableDefinition(
         PatioDataElementMutableDefinition patioDataElementMutableDefinition,
         PatioToLlvmModuleContext context
-- 
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