[C API] Add APIs for getting/setting function types, and a CallRef example (#6721)

Fixes #6718

2 files changed, 11 insertions, 0 deletions

diff --git a/src/binaryen-c.cpp b/src/binaryen-c.cpp
index 9c9a1c54f..be80206f5 100644
--- a/src/binaryen-c.cpp
+++ b/src/binaryen-c.cpp
@@ -5684,6 +5684,12 @@ void BinaryenFunctionSetBody(BinaryenFunctionRef func,
   assert(body);
   ((Function*)func)->body = (Expression*)body;
 }
+BinaryenHeapType BinaryenFunctionGetType(BinaryenFunctionRef func) {
+  return ((Function*)func)->type.getID();
+}
+void BinaryenFunctionSetType(BinaryenFunctionRef func, BinaryenHeapType type) {
+  ((Function*)func)->type = HeapType(type);
+}
 void BinaryenFunctionOptimize(BinaryenFunctionRef func,
                               BinaryenModuleRef module) {
   PassRunner passRunner((Module*)module);
diff --git a/src/binaryen-c.h b/src/binaryen-c.h
index 45230a117..35f1d8eb8 100644
--- a/src/binaryen-c.h
+++ b/src/binaryen-c.h
@@ -3136,6 +3136,11 @@ BinaryenFunctionGetBody(BinaryenFunctionRef func);
 // Sets the body of the specified `Function`.
 BINARYEN_API void BinaryenFunctionSetBody(BinaryenFunctionRef func,
                                           BinaryenExpressionRef body);
+// Gets the type of the specified `Function`.
+BINARYEN_API BinaryenHeapType BinaryenFunctionGetType(BinaryenFunctionRef func);
+// Sets the type of the specified `Function`.
+BINARYEN_API void BinaryenFunctionSetType(BinaryenFunctionRef func,
+                                          BinaryenHeapType type);
 
 // Runs the standard optimization passes on the function. Uses the currently set
 // global optimize and shrink level.