Proper encoding of passive element segments (#1066)

* Store element segments as a vector of `ElemExpr`, instead of func index
* Read/write binary format for each element expression
* Read/write text format for each element expression

1 files changed, 6 insertions, 2 deletions

diff --git a/src/binary-reader-nop.h b/src/binary-reader-nop.h
index e9e6ea9a..b02848b8 100644
--- a/src/binary-reader-nop.h
+++ b/src/binary-reader-nop.h
@@ -291,10 +291,14 @@ class BinaryReaderNop : public BinaryReaderDelegate {
   }
   Result BeginElemSegmentInitExpr(Index index) override { return Result::Ok; }
   Result EndElemSegmentInitExpr(Index index) override { return Result::Ok; }
-  Result OnElemSegmentFunctionIndexCount(Index index, Index count) override {
+  Result OnElemSegmentElemExprCount(Index index, Index count) override {
     return Result::Ok;
   }
-  Result OnElemSegmentFunctionIndex(Index index, Index func_index) override {
+  Result OnElemSegmentElemExpr_RefNull(Index segment_index) override {
+    return Result::Ok;
+  }
+  Result OnElemSegmentElemExpr_RefFunc(Index segment_index,
+                                       Index func_index) override {
     return Result::Ok;
   }
   Result EndElemSegment(Index index) override { return Result::Ok; }