Jip J. Dekker
9b7e65e00b
git-subtree-dir: software/minizinc git-subtree-split: 5a577826da4d7cf6195f28b5604d8d20a01fbc6e
53 lines
1.6 KiB
C++
53 lines
1.6 KiB
C++
/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
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/*
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* Main authors:
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* Jip J. Dekker <jip.dekker@monash.edu>
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* Guido Tack <guido.tack@monash.edu>
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*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#pragma once
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#include <minizinc/ast.hh>
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#include <minizinc/aststring.hh>
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#include <unordered_map>
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#include <unordered_set>
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namespace MiniZinc {
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/// Hash map from strings to \a T
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/// Note: This map is only safe to use if the keys are guaranteed to be
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/// marked alive. (For example if they are used in a Model object)
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template <typename T>
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using ASTStringMap = std::unordered_map<ASTString, T>;
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/// Hash set of strings
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/// Note: This set is only safe to use if the keys are guaranteed to be
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/// marked alive. (For example if they are used in a Model object)
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using ASTStringSet = std::unordered_set<ASTString>;
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/// Hash map from strings to \a T
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/// Note: This map will ensure its keys stay alive while it still exists
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/// Specialisations for Expression* and VarDeclI* exist to ensure the
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/// stored values are kept alive as well.
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template <typename T>
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class ManagedASTStringMap : public GCMarker, public std::unordered_map<ASTString, T> {
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protected:
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void mark(MINIZINC_GC_STAT_ARGS) override {
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for (auto& it : *this) {
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it.first.mark();
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}
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}
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};
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template <>
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void ManagedASTStringMap<Expression*>::mark(MINIZINC_GC_STAT_ARGS);
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template <>
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void ManagedASTStringMap<VarDeclI*>::mark(MINIZINC_GC_STAT_ARGS);
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} // namespace MiniZinc
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