From f4bac750504ae2d21068a87b6a6bf4a733476993 Mon Sep 17 00:00:00 2001
From: Cliff Click <cliffc@acm.org>
Date: Wed, 11 Nov 2026 11:49:04 -0800
Subject: First cut graphics

---
 .../main/java/com/seaofnodes/simple/codegen/Serialize.java   | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

(limited to 'chapter31/src/main/java/com/seaofnodes')

diff --git a/chapter31/src/main/java/com/seaofnodes/simple/codegen/Serialize.java b/chapter31/src/main/java/com/seaofnodes/simple/codegen/Serialize.java
index ae4ecb74..79bebe1f 100644
--- a/chapter31/src/main/java/com/seaofnodes/simple/codegen/Serialize.java
+++ b/chapter31/src/main/java/com/seaofnodes/simple/codegen/Serialize.java
@@ -417,7 +417,7 @@ public class Serialize {
         assert elf._clz._name==strs[1/*skip null ptr*/];
         for( Type type : types )
             if( type instanceof TypeStruct ts )
-                Parser.TYPES.put(ts._name,ts);
+                installType(ts);
         for( Type type : types ) {
             if( !(type instanceof TypeStruct ts) || !TypeStruct.startsClzPrefix(ts._name) )
                 continue;
@@ -429,7 +429,7 @@ public class Serialize {
         elf._pubTypes = new TypeStruct[npubTypes];
         for( int i=0; i<npubTypes; i++ ) {
             TypeStruct ts = elf._pubTypes[i] = (TypeStruct)types[pubTypeIds[i]];
-            Parser.TYPES.put(ts._name,ts);
+            installType(ts);
         }
         elf._functions = new FunctionSummary[bais.packed4()];
         for( int i = 0; i<elf._functions.length; i++ ) {
@@ -444,6 +444,14 @@ public class Serialize {
         return elf._types = new TypeRead(types,strs,fileAliases,fileFidxs,fileRpcs);
     }
 
+    private static void installType(TypeStruct ts) {
+        // TYPES names the mutable array declaration. Read-only arrays in
+        // imported signatures keep their own types, but must not replace that
+        // declaration: closeOver looks up its mutable variant by name.
+        if( ts.isAry() ) ts = ts.replace(ts.field("[]").makeFrom(false));
+        Parser.TYPES.put(ts._name,ts);
+    }
+
     static void readAll( CodeGen code, ElfReader elf, GlobalBits aliases, GlobalBits fidxs, GlobalBits rpcs ) {
         BAOS bais = elf._bais;
         TypeRead tread = readTypes(code, elf, aliases, fidxs, rpcs);
-- 
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