53 lines
1.3 KiB
C++
53 lines
1.3 KiB
C++
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// Copyright 2020 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "src/symbol_table.h"
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namespace tint {
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SymbolTable::SymbolTable() = default;
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SymbolTable::SymbolTable(SymbolTable&&) = default;
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SymbolTable::~SymbolTable() = default;
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SymbolTable& SymbolTable::operator=(SymbolTable&&) = default;
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Symbol SymbolTable::Register(const std::string& name) {
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if (name == "")
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return Symbol();
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auto it = name_to_symbol_.find(name);
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if (it != name_to_symbol_.end())
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return it->second;
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Symbol sym(next_symbol_);
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++next_symbol_;
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name_to_symbol_[name] = sym;
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symbol_to_name_[sym.value()] = name;
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return sym;
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}
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std::string SymbolTable::NameFor(const Symbol symbol) const {
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auto it = symbol_to_name_.find(symbol.value());
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if (it == symbol_to_name_.end())
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return "";
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return it->second;
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}
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} // namespace tint
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