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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /third_party/wasm2c/include/wabt/binding-hash.h | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/wasm2c/include/wabt/binding-hash.h')
-rw-r--r-- | third_party/wasm2c/include/wabt/binding-hash.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/third_party/wasm2c/include/wabt/binding-hash.h b/third_party/wasm2c/include/wabt/binding-hash.h new file mode 100644 index 0000000000..5d43cd7202 --- /dev/null +++ b/third_party/wasm2c/include/wabt/binding-hash.h @@ -0,0 +1,72 @@ +/* + * Copyright 2016 WebAssembly Community Group participants + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef WABT_BINDING_HASH_H_ +#define WABT_BINDING_HASH_H_ + +#include <functional> +#include <string> +#include <string_view> +#include <unordered_map> +#include <vector> + +#include "wabt/common.h" + +namespace wabt { + +struct Var; + +struct Binding { + explicit Binding(Index index) : index(index) {} + Binding(const Location& loc, Index index) : loc(loc), index(index) {} + + Location loc; + Index index; +}; + +// This class derives from a C++ container, which is usually not advisable +// because they don't have virtual destructors. So don't delete a BindingHash +// object through a pointer to std::unordered_multimap. +class BindingHash : public std::unordered_multimap<std::string, Binding> { + public: + using DuplicateCallback = + std::function<void(const value_type&, const value_type&)>; + + void FindDuplicates(DuplicateCallback callback) const; + + Index FindIndex(const Var&) const; + + Index FindIndex(const std::string& name) const { + auto iter = find(name); + return iter != end() ? iter->second.index : kInvalidIndex; + } + + Index FindIndex(std::string_view name) const { + return FindIndex(std::string(name)); + } + + private: + using ValueTypeVector = std::vector<const value_type*>; + + void CreateDuplicatesVector(ValueTypeVector* out_duplicates) const; + void SortDuplicatesVectorByLocation(ValueTypeVector* duplicates) const; + void CallCallbacks(const ValueTypeVector& duplicates, + DuplicateCallback callback) const; +}; + +} // namespace wabt + +#endif /* WABT_BINDING_HASH_H_ */ |