third_party/v8/test/common/wasm/flag-utils.h

// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef V8_TEST_COMMON_WASM_FLAG_UTILS_H
#define V8_TEST_COMMON_WASM_FLAG_UTILS_H

#include "src/wasm/wasm-features.h"
#include "test/common/flag-utils.h"

namespace v8 {
namespace internal {

#define EXPERIMENTAL_FLAG_SCOPE(flag) FLAG_SCOPE(experimental_wasm_##flag)

namespace wasm {

class WasmFeatureScope {
 public:
  explicit WasmFeatureScope(WasmFeatures* features, WasmFeature feature,
                            bool val = true)
      : prev_(features->contains(feature)),
        feature_(feature),
        features_(features) {
    set(val);
  }
  ~WasmFeatureScope() { set(prev_); }

 private:
  void set(bool val) {
    if (val) {
      features_->Add(feature_);
    } else {
      features_->Remove(feature_);
    }
  }

  bool const prev_;
  WasmFeature const feature_;
  WasmFeatures* const features_;
};

#define WASM_FEATURE_SCOPE(feat) \
  WasmFeatureScope feat##_scope(&this->enabled_features_, kFeature_##feat)

#define WASM_FEATURE_SCOPE_VAL(feat, val) \
  WasmFeatureScope feat##_scope(&this->enabled_features_, kFeature_##feat, val)

}  // namespace wasm
}  // namespace internal
}  // namespace v8

#endif  // V8_TEST_COMMON_WASM_FLAG_UTILS_H