V8 API Reference, 7.2.502.16 (for Deno 0.2.4)
refs-map.cc
1 // Copyright 2018 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #include "src/compiler/refs-map.h"
6 
7 namespace v8 {
8 namespace internal {
9 namespace compiler {
10 
11 using UnderlyingMap =
12  base::TemplateHashMapImpl<Address, ObjectData*, AddressMatcher,
13  ZoneAllocationPolicy>;
14 
15 RefsMap::RefsMap(uint32_t capacity, AddressMatcher match, Zone* zone)
16  : UnderlyingMap(capacity, match, ZoneAllocationPolicy(zone)) {}
17 
18 RefsMap::RefsMap(const RefsMap* other, Zone* zone)
19  : UnderlyingMap(other, ZoneAllocationPolicy(zone)) {}
20 
21 RefsMap::Entry* RefsMap::Lookup(const Address& key) const {
22  return UnderlyingMap::Lookup(key, Hash(key));
23 }
24 
25 RefsMap::Entry* RefsMap::LookupOrInsert(const Address& key, Zone* zone) {
26  return UnderlyingMap::LookupOrInsert(key, RefsMap::Hash(key),
27  []() { return nullptr; },
28  ZoneAllocationPolicy(zone));
29 }
30 
31 uint32_t RefsMap::Hash(Address addr) { return static_cast<uint32_t>(addr); }
32 
33 } // namespace compiler
34 } // namespace internal
35 } // namespace v8
Definition: libplatform.h:13