From 7785c220bcef000aedfbe2b9c95a32272786f370 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Sat, 21 Mar 2026 15:36:58 +0000
Subject: Serialize Patio operands to Protobuf

---
 .../compiler/patio/protobuf/PatioToProtobuf.java   | 80 ++++++++++++++++++++++
 1 file changed, 80 insertions(+)

(limited to 'src/main/java')

diff --git a/src/main/java/org/shedlang/compiler/patio/protobuf/PatioToProtobuf.java b/src/main/java/org/shedlang/compiler/patio/protobuf/PatioToProtobuf.java
index a08f42b6..f3142428 100644
--- a/src/main/java/org/shedlang/compiler/patio/protobuf/PatioToProtobuf.java
+++ b/src/main/java/org/shedlang/compiler/patio/protobuf/PatioToProtobuf.java
@@ -1,6 +1,7 @@
 package org.shedlang.compiler.patio.protobuf;
 
 import org.shedlang.compiler.patio.*;
+import org.shedlang.compiler.patio.operands.*;
 import org.shedlang.compiler.patio.types.*;
 import org.shedlang.compiler.patio.values.*;
 import org.shedlang.compiler.sources.Source;
@@ -300,6 +301,85 @@ public class PatioToProtobuf {
         };
     }
 
+    // == Operands ==
+
+    public static PatioProtobuf.PatioOperand serializeOperand(PatioOperand operand) {
+        var builder = PatioProtobuf.PatioOperand.newBuilder();
+
+        switch (operand) {
+            case PatioBoolConst boolConst -> {
+                var boolConstBuilder = builder.getBoolConstBuilder();
+                boolConstBuilder.setValue(boolConst.value());
+            }
+
+            case PatioByteConst byteConst -> {
+                var byteConstBuilder = builder.getByteConstBuilder();
+                byteConstBuilder.setValue(byteConst.value());
+            }
+
+            case PatioDataPtrConst dataPtrConst -> {
+                var dataPtrConstBuilder = builder.getDataPtrConstBuilder();
+                dataPtrConstBuilder.setValue(serializeDataPtrValue(dataPtrConst.value()));
+            }
+
+            case PatioFunctionPtrConst functionPtrConst -> {
+                var functionPtrConstBuilder = builder.getFunctionPtrConstBuilder();
+                functionPtrConstBuilder.setName(functionPtrConst.name());
+            }
+
+            case PatioIntConst intConst -> {
+                var intConstBuilder = builder.getIntConstBuilder();
+                intConstBuilder.setValue(serializeIntValue(intConst.value()));
+            }
+
+            case PatioInt32Const int32Const -> {
+                var int32ConstBuilder = builder.getInt32ConstBuilder();
+                int32ConstBuilder.setValue(serializeIntValue(int32Const.value()));
+            }
+
+            case PatioLocalRef localRef -> {
+                var localRefBuilder = builder.getLocalRefBuilder();
+                localRefBuilder.setName(localRef.name());
+            }
+        }
+
+        return builder.build();
+    }
+
+    public static PatioOperand deserializeOperand(PatioProtobuf.PatioOperand operandProtobuf) {
+        return switch (operandProtobuf.getValueCase()) {
+            case BOOL_CONST ->
+                new PatioBoolConst(operandProtobuf.getBoolConst().getValue());
+
+            case BYTE_CONST ->
+                new PatioByteConst((byte) operandProtobuf.getByteConst().getValue());
+
+            case DATA_PTR_CONST ->
+                new PatioDataPtrConst(
+                    deserializeDataPtrValue(operandProtobuf.getDataPtrConst().getValue())
+                );
+
+            case FUNCTION_PTR_CONST ->
+                new PatioFunctionPtrConst(operandProtobuf.getFunctionPtrConst().getName());
+
+            case INT_CONST ->
+                new PatioIntConst(
+                    deserializeIntValue(operandProtobuf.getIntConst().getValue())
+                );
+
+            case INT32_CONST ->
+                new PatioInt32Const(
+                    deserializeIntValue(operandProtobuf.getInt32Const().getValue())
+                );
+
+            case LOCAL_REF ->
+                new PatioLocalRef(operandProtobuf.getLocalRef().getName());
+
+            case VALUE_NOT_SET ->
+                throw new UnsupportedOperationException("TODO");
+        };
+    }
+
     // == Data ptr values ==
 
     public static PatioProtobuf.PatioDataPtrValue serializeDataPtrValue(PatioDataPtrValue value) {
-- 
cgit v1.2.3