Features C/JS API (#2049)

Add feature handling to the C/JS APIs. No features are enabled by
default, so all used features will have to be explicitly enabled in
order for modules to validate.

1 files changed, 17 insertions, 0 deletions

diff --git a/src/js/binaryen.js-post.js b/src/js/binaryen.js-post.js
index 8aa28a08c..fe0594b91 100644
--- a/src/js/binaryen.js-post.js
+++ b/src/js/binaryen.js-post.js
@@ -85,6 +85,17 @@ Module['ExternalTable'] = Module['_BinaryenExternalTable']();
 Module['ExternalMemory'] = Module['_BinaryenExternalMemory']();
 Module['ExternalGlobal'] = Module['_BinaryenExternalGlobal']();
 
+// Features
+Module['Features'] = {
+  'Atomics': Module['_BinaryenFeatureAtomics'](),
+  'BulkMemory': Module['_BinaryenFeatureBulkMemory'](),
+  'MutableGlobals': Module['_BinaryenFeatureMutableGlobals'](),
+  'NontrappingFPToInt': Module['_BinaryenFeatureNontrappingFPToInt'](),
+  'SignExt': Module['_BinaryenFeatureSignExt'](),
+  'SIMD128': Module['_BinaryenFeatureSIMD128'](),
+  'ExceptionHandling': Module['_BinaryenFeatureExceptionHandling'](),
+};
+
 // Operations
 Module['ClzInt32'] = Module['_BinaryenClzInt32']();
 Module['CtzInt32'] = Module['_BinaryenCtzInt32']();
@@ -1866,6 +1877,12 @@ function wrapModule(module, self) {
   self['setStart'] = function(start) {
     return Module['_BinaryenSetStart'](module, start);
   };
+  self['getFeatures'] = function() {
+    return Module['_BinaryenGetFeatures'](module);
+  };
+  self['setFeatures'] = function(features) {
+    Module['_BinaryenSetFeatures'](module, features);
+  };
   self['emitText'] = function() {
     var old = out;
     var ret = '';