[C-API] Add packed type constants for use with GC types (#4791)

2 files changed, 20 insertions, 0 deletions

diff --git a/src/binaryen-c.cpp b/src/binaryen-c.cpp
index 233ff5e34..8b4021c5b 100644
--- a/src/binaryen-c.cpp
+++ b/src/binaryen-c.cpp
@@ -172,6 +172,18 @@ WASM_DEPRECATED BinaryenType BinaryenFloat32(void) { return Type::f32; }
 WASM_DEPRECATED BinaryenType BinaryenFloat64(void) { return Type::f64; }
 WASM_DEPRECATED BinaryenType BinaryenUndefined(void) { return uint32_t(-1); }
 
+// Packed types
+
+BinaryenPackedType BinaryenPackedTypeNotPacked(void) {
+  return Field::PackedType::not_packed;
+}
+BinaryenPackedType BinaryenPackedTypeInt8(void) {
+  return Field::PackedType::i8;
+}
+BinaryenPackedType BinaryenPackedTypeInt16(void) {
+  return Field::PackedType::i16;
+}
+
 // Expression ids
 
 BinaryenExpressionId BinaryenInvalidId(void) {
diff --git a/src/binaryen-c.h b/src/binaryen-c.h
index 387e54b72..bd8e19048 100644
--- a/src/binaryen-c.h
+++ b/src/binaryen-c.h
@@ -121,6 +121,14 @@ WASM_DEPRECATED BinaryenType BinaryenFloat32(void);
 WASM_DEPRECATED BinaryenType BinaryenFloat64(void);
 WASM_DEPRECATED BinaryenType BinaryenUndefined(void);
 
+// Packed types (call to get the value of each; you can cache them)
+
+typedef uint32_t BinaryenPackedType;
+
+BINARYEN_API BinaryenPackedType BinaryenPackedTypeNotPacked(void);
+BINARYEN_API BinaryenPackedType BinaryenPackedTypeInt8(void);
+BINARYEN_API BinaryenPackedType BinaryenPackedTypeInt16(void);
+
 // Expression ids (call to get the value of each; you can cache them)
 
 typedef uint32_t BinaryenExpressionId;