1 files changed, 56 insertions, 0 deletions
diff --git a/third_party/wasm2c/src/feature.cc b/third_party/wasm2c/src/feature.cc
new file mode 100644
index 0000000000..88b474c290
--- /dev/null
+++ b/third_party/wasm2c/src/feature.cc
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2017 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.
+ */
+
+#include "wabt/feature.h"
+
+#include "wabt/option-parser.h"
+
+namespace wabt {
+
+void Features::AddOptions(OptionParser* parser) {
+#define WABT_FEATURE(variable, flag, default_, help)       \
+  if (default_ == true) {                                  \
+    parser->AddOption("disable-" flag, "Disable " help,    \
+                      [this]() { disable_##variable(); }); \
+  } else {                                                 \
+    parser->AddOption("enable-" flag, "Enable " help,      \
+                      [this]() { enable_##variable(); });  \
+  }
+
+#include "wabt/feature.def"
+#undef WABT_FEATURE
+  parser->AddOption("enable-all", "Enable all features",
+                    [this]() { EnableAll(); });
+}
+
+void Features::UpdateDependencies() {
+  // Exception handling requires reference types.
+  if (exceptions_enabled_) {
+    reference_types_enabled_ = true;
+  }
+
+  // Function references require reference types.
+  if (function_references_enabled_) {
+    reference_types_enabled_ = true;
+  }
+
+  // Reference types requires bulk memory.
+  if (!bulk_memory_enabled_) {
+    reference_types_enabled_ = false;
+  }
+}
+
+}  // namespace wabt