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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/signature.h"
namespace v8 {
namespace internal {
namespace wasm {
uint32_t SignatureMap::FindOrInsert(FunctionSig* sig) {
CHECK(!frozen_);
auto pos = map_.find(sig);
if (pos != map_.end()) {
return pos->second;
} else {
uint32_t index = next_++;
map_[sig] = index;
return index;
}
}
int32_t SignatureMap::Find(FunctionSig* sig) const {
auto pos = map_.find(sig);
if (pos != map_.end()) {
return static_cast<int32_t>(pos->second);
} else {
return -1;
}
}
bool SignatureMap::CompareFunctionSigs::operator()(FunctionSig* a,
FunctionSig* b) const {
if (a == b) return false;
if (a->return_count() < b->return_count()) return true;
if (a->return_count() > b->return_count()) return false;
if (a->parameter_count() < b->parameter_count()) return true;
if (a->parameter_count() > b->parameter_count()) return false;
for (size_t r = 0; r < a->return_count(); r++) {
if (a->GetReturn(r) < b->GetReturn(r)) return true;
if (a->GetReturn(r) > b->GetReturn(r)) return false;
}
for (size_t p = 0; p < a->parameter_count(); p++) {
if (a->GetParam(p) < b->GetParam(p)) return true;
if (a->GetParam(p) > b->GetParam(p)) return false;
}
return false;
}
} // namespace wasm
} // namespace internal
} // namespace v8
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