1 files changed, 39 insertions, 0 deletions
diff --git a/src/passes/PrintFeatures.cpp b/src/passes/PrintFeatures.cpp
new file mode 100644
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--- /dev/null
+++ b/src/passes/PrintFeatures.cpp
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+/*
+ * Copyright 2019 WebAssembly Community Group participants
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//
+// Print out the feature options corresponding to enabled features
+//
+
+#include "wasm.h"
+#include "wasm-features.h"
+#include "pass.h"
+
+namespace wasm {
+
+struct PrintFeatures : public Pass {
+  void run(PassRunner* runner, Module* module) override {
+    module->features.iterFeatures([](FeatureSet::Feature f) {
+      std::cout << "--enable-" << FeatureSet::toString(f) << std::endl;
+    });
+  }
+};
+
+Pass* createPrintFeaturesPass() {
+  return new PrintFeatures();
+}
+
+} // namespace wasm