From 876638f8fb5bfc8b264eddc6c0c0d54ed40d0095 Mon Sep 17 00:00:00 2001
From: Alon Zakai <azakai@google.com>
Date: Wed, 6 Jul 2022 08:48:12 -0700
Subject: [Strings] Add string.const (#4768)

This is more work than a typical instruction because it also adds a new section:
all the (string.const "foo") strings are put in a new "strings" section in the binary, and
the instructions refer to them by index.
---
 src/wasm.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'src/wasm.h')

diff --git a/src/wasm.h b/src/wasm.h
index 6d0733d34..3032b4ac1 100644
--- a/src/wasm.h
+++ b/src/wasm.h
@@ -686,6 +686,7 @@ public:
     ArrayCopyId,
     RefAsId,
     StringNewId,
+    StringConstId,
     NumExpressionIds
   };
   Id _id;
@@ -1664,6 +1665,18 @@ public:
   void finalize();
 };
 
+class StringConst : public SpecificExpression<Expression::StringConstId> {
+public:
+  StringConst(MixedArena& allocator) {}
+
+  // TODO: Use a different type to allow null bytes in the middle -
+  //       ArenaVector<char> perhaps? However, Name has the benefit of being
+  //       interned and immutable (which is appropriate here).
+  Name string;
+
+  void finalize();
+};
+
 // Globals
 
 struct Named {
-- 
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