Moved the ExternalReferenceTable class to src/external-reference-table.cc/.h

src/external-reference-table.h

+// Copyright 2016 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_EXTERNAL_REFERENCE_TABLE_H_
+#define V8_EXTERNAL_REFERENCE_TABLE_H_
+
+#include "src/address-map.h"
+
+namespace v8 {
+namespace internal {
+
+class Isolate;
+
+// ExternalReferenceTable is a helper class that defines the relationship
+// between external references and their encodings. It is used to build
+// hashmaps in ExternalReferenceEncoder and ExternalReferenceDecoder.
+class ExternalReferenceTable {
+ public:
+  static ExternalReferenceTable* instance(Isolate* isolate);
+
+  int size() const { return refs_.length(); }
+  Address address(int i) { return refs_[i].address; }
+  const char* name(int i) { return refs_[i].name; }
+
+  inline static Address NotAvailable() { return NULL; }
+
+  static const int kDeoptTableSerializeEntryCount = 64;
+
+ private:
+  struct ExternalReferenceEntry {
+    Address address;
+    const char* name;
+  };
+
+  explicit ExternalReferenceTable(Isolate* isolate);
+
+  void Add(Address address, const char* name) {
+    ExternalReferenceEntry entry = {address, name};
+    refs_.Add(entry);
+  }
+
+  List<ExternalReferenceEntry> refs_;
+
+  DISALLOW_COPY_AND_ASSIGN(ExternalReferenceTable);
+};
+
+}  // namespace internal
+}  // namespace v8
+#endif  // V8_EXTERNAL_REFERENCE_TABLE_H_