Add `getGlobal` to binaryen.js (#2142)

We have `getFunction`, but not `getGlobal` because its name clashed with
APIs for the deprecated instruction `get_global`. Now we have reflected
instruction renaming in code, we can add it for consistency.

3 files changed, 16 insertions, 2 deletions

diff --git a/src/binaryen-c.cpp b/src/binaryen-c.cpp
index fb8b730c7..6bf2e7d7c 100644
--- a/src/binaryen-c.cpp
+++ b/src/binaryen-c.cpp
@@ -2751,6 +2751,15 @@ BinaryenGlobalRef BinaryenAddGlobal(BinaryenModuleRef module,
   wasm->addGlobal(ret);
   return ret;
 }
+BinaryenGlobalRef BinaryenGetGlobal(BinaryenModuleRef module,
+                                    const char* name) {
+  if (tracing) {
+    std::cout << "  BinaryenGetGlobal(the_module, \"" << name << "\");\n";
+  }
+
+  auto* wasm = (Module*)module;
+  return wasm->getGlobal(name);
+}
 void BinaryenRemoveGlobal(BinaryenModuleRef module, const char* name) {
   if (tracing) {
     std::cout << "  BinaryenRemoveGlobal(the_module, \"" << name << "\");\n";
diff --git a/src/binaryen-c.h b/src/binaryen-c.h
index ae6747cea..03da33931 100644
--- a/src/binaryen-c.h
+++ b/src/binaryen-c.h
@@ -853,11 +853,9 @@ BinaryenFunctionRef BinaryenAddFunction(BinaryenModuleRef module,
                                         BinaryenType* varTypes,
                                         BinaryenIndex numVarTypes,
                                         BinaryenExpressionRef body);
-
 // Gets a function reference by name.
 BinaryenFunctionRef BinaryenGetFunction(BinaryenModuleRef module,
                                         const char* name);
-
 // Removes a function by name.
 void BinaryenRemoveFunction(BinaryenModuleRef module, const char* name);
 
@@ -913,6 +911,8 @@ BinaryenGlobalRef BinaryenAddGlobal(BinaryenModuleRef module,
                                     BinaryenType type,
                                     int8_t mutable_,
                                     BinaryenExpressionRef init);
+// Gets a global reference by name.
+BinaryenGlobalRef BinaryenGetGlobal(BinaryenModuleRef module, const char* name);
 void BinaryenRemoveGlobal(BinaryenModuleRef module, const char* name);
 
 // Function table. One per module
diff --git a/src/js/binaryen.js-post.js b/src/js/binaryen.js-post.js
index 6f0bec734..c64d3caca 100644
--- a/src/js/binaryen.js-post.js
+++ b/src/js/binaryen.js-post.js
@@ -1776,6 +1776,11 @@ function wrapModule(module, self) {
       return Module['_BinaryenAddGlobal'](module, strToStack(name), type, mutable, init);
     });
   }
+  self['getGlobal'] = function(name) {
+    return preserveStack(function() {
+      return Module['_BinaryenGetGlobal'](module, strToStack(name));
+    });
+  };
   self['removeGlobal'] = function(name) {
     return preserveStack(function() {
       return Module['_BinaryenRemoveGlobal'](module, strToStack(name));