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// Copyright 2018 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.
#include "src/wasm/wasm-features.h"
#include "src/execution/isolate-inl.h"
#include "src/flags/flags.h"
#include "src/handles/handles-inl.h"
namespace v8 {
namespace internal {
namespace wasm {
// static
WasmFeatures WasmFeatures::FromFlags() {
WasmFeatures features = WasmFeatures::None();
#define FLAG_REF(feat, ...) \
if (v8_flags.experimental_wasm_##feat) features.Add(kFeature_##feat);
FOREACH_WASM_FEATURE_FLAG(FLAG_REF)
#undef FLAG_REF
#define NON_FLAG_REF(feat, ...) features.Add(kFeature_##feat);
FOREACH_WASM_NON_FLAG_FEATURE(NON_FLAG_REF)
#undef NON_FLAG_REF
return features;
}
// static
WasmFeatures WasmFeatures::FromIsolate(Isolate* isolate) {
return FromContext(isolate, isolate->native_context());
}
// static
WasmFeatures WasmFeatures::FromContext(Isolate* isolate,
Handle<NativeContext> context) {
WasmFeatures features = WasmFeatures::FromFlags();
if (isolate->IsWasmGCEnabled(context)) {
features.Add(kFeature_gc);
// Also enable typed function references, since the commandline flag
// implication won't do that for us in this case.
features.Add(kFeature_typed_funcref);
}
if (isolate->IsWasmStringRefEnabled(context)) {
features.Add(kFeature_stringref);
}
if (isolate->IsWasmInliningEnabled(context)) {
features.Add(kFeature_inlining);
}
if (isolate->IsWasmImportedStringsEnabled(context)) {
features.Add(kFeature_imported_strings);
}
// This space intentionally left blank for future Wasm origin trials.
return features;
}
} // namespace wasm
} // namespace internal
} // namespace v8
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