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// 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.
#include "src/wasm/signature-map.h"
#include "src/codegen/signature.h"
namespace v8 {
namespace internal {
namespace wasm {
uint32_t SignatureMap::FindOrInsert(const FunctionSig& sig) {
CHECK(!frozen_);
auto pos = map_.find(sig);
if (pos != map_.end()) return pos->second;
// Indexes are returned as int32_t, thus check against their limit.
CHECK_GE(kMaxInt, map_.size());
uint32_t index = static_cast<uint32_t>(map_.size());
map_.insert(std::make_pair(sig, index));
return index;
}
int32_t SignatureMap::Find(const FunctionSig& sig) const {
auto pos = map_.find(sig);
if (pos == map_.end()) return -1;
return static_cast<int32_t>(pos->second);
}
} // namespace wasm
} // namespace internal
} // namespace v8
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