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Unified Diff: include/v8-experimental.h

Issue 1518703002: Re-re-land FastAccessorBuilder. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Add test restrictions, as for test-api-fast-accessor-builder Created 5 years ago
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Index: include/v8-experimental.h
diff --git a/include/v8-experimental.h b/include/v8-experimental.h
new file mode 100644
index 0000000000000000000000000000000000000000..f988e14054cec6275cd029a22cd759230f798a34
--- /dev/null
+++ b/include/v8-experimental.h
@@ -0,0 +1,53 @@
+// Copyright 2015 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.
+
+/**
+ * This header contains a set of experimental V8 APIs. We hope these will
+ * become a part of standard V8, but they may also be removed if we deem the
+ * experiment to not be successul.
+ */
+#ifndef V8_INCLUDE_V8_EXPERIMENTAL_H_
+#define V8_INCLUDE_V8_EXPERIMENTAL_H_
+
+#include "include/v8.h"
+
+namespace v8 {
+namespace experimental {
+
+// Allow the embedder to construct accessors that V8 can compile and use
+// directly, without jumping into the runtime.
+class V8_EXPORT FastAccessorBuilder {
+ public:
+ struct ValueId {
+ size_t value_id;
+ };
+ struct LabelId {
+ size_t label_id;
+ };
+
+ static FastAccessorBuilder* New(Isolate* isolate);
+
+ ValueId IntegerConstant(int int_constant);
+ ValueId GetReceiver();
+ ValueId LoadInternalField(ValueId value_id, int field_no);
+ ValueId LoadValue(ValueId value_id, int offset);
+ ValueId LoadObject(ValueId value_id, int offset);
+ void ReturnValue(ValueId value_id);
+ void CheckFlagSetOrReturnNull(ValueId value_id, int mask);
+ void CheckNotZeroOrReturnNull(ValueId value_id);
+ LabelId MakeLabel();
+ void SetLabel(LabelId label_id);
+ void CheckNotZeroOrJump(ValueId value_id, LabelId label_id);
+
+ private:
+ FastAccessorBuilder() = delete;
+ FastAccessorBuilder(const FastAccessorBuilder&) = delete;
+ ~FastAccessorBuilder() = delete;
+ void operator=(const FastAccessorBuilder&) = delete;
+};
+
+} // namespace experimental
+} // namespace v8
+
+#endif // V8_INCLUDE_V8_EXPERIMENTAL_H_
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