Add BinaryenRemoveGlobal / Module.removeGlobal to C/JS API (#1692)

Author: dcodeIO

build-js.sh

@@ -535,6 +535,7 @@ export_function "_BinaryenAddFunction"
 export_function "_BinaryenGetFunction"
 export_function "_BinaryenRemoveFunction"
 export_function "_BinaryenAddGlobal"
+export_function "_BinaryenRemoveGlobal"
 export_function "_BinaryenAddFunctionImport"
 export_function "_BinaryenAddTableImport"
 export_function "_BinaryenAddMemoryImport"

src/binaryen-c.cpp

@@ -1645,6 +1645,14 @@ BinaryenGlobalRef BinaryenAddGlobal(BinaryenModuleRef module, const char* name,
   wasm->addGlobal(ret);
   return ret;
 }
+void BinaryenRemoveGlobal(BinaryenModuleRef module, const char* name) {
+  if (tracing) {
+    std::cout << "  BinaryenRemoveGlobal(the_module, \"" << name << "\");\n";
+  }
+
+  auto* wasm = (Module*)module;
+  wasm->removeGlobal(name);
+}
 
 // Imports
 

src/binaryen-c.h

@@ -613,6 +613,7 @@ void BinaryenRemoveExport(BinaryenModuleRef module, const char* externalName);
 typedef void* BinaryenGlobalRef;
 
 BinaryenGlobalRef BinaryenAddGlobal(BinaryenModuleRef module, const char* name, BinaryenType type, int8_t mutable_, BinaryenExpressionRef init);
+void BinaryenRemoveGlobal(BinaryenModuleRef module, const char* name);
 
 // Function table. One per module
 

src/js/binaryen.js-post.js

@@ -1066,6 +1066,11 @@ Module['Module'] = function(module) {
       return Module['_BinaryenAddGlobal'](module, strToStack(name), type, mutable, init);
     });
   }
+  this['removeGlobal'] = function(name) {
+    return preserveStack(function () {
+      return Module['_BinaryenRemoveGlobal'](module, strToStack(name));
+    });
+  }
   this['addFunctionImport'] = function(internalName, externalModuleName, externalBaseName, functionType) {
     return preserveStack(function() {
       return Module['_BinaryenAddFunctionImport'](module, strToStack(internalName), strToStack(externalModuleName), strToStack(externalBaseName), functionType);