76 lines
2.3 KiB
C++
76 lines
2.3 KiB
C++
/*
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* nextpnr -- Next Generation Place and Route
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*
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* Copyright (C) 2018 Claire Xenia Wolf <claire@yosyshq.com>
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* Copyright (C) 2018 Serge Bazanski <q3k@q3k.org>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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#ifndef IDSTRING_H
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#define IDSTRING_H
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#include <string>
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#include "nextpnr_namespaces.h"
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NEXTPNR_NAMESPACE_BEGIN
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struct BaseCtx;
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struct IdString
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{
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int index;
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static void initialize_arch(const BaseCtx *ctx);
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static void initialize_add(const BaseCtx *ctx, const char *s, int idx);
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constexpr IdString() : index(0) {}
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explicit constexpr IdString(int index) : index(index) {}
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void set(const BaseCtx *ctx, const std::string &s);
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IdString(const BaseCtx *ctx, const std::string &s) { set(ctx, s); }
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IdString(const BaseCtx *ctx, const char *s) { set(ctx, s); }
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const std::string &str(const BaseCtx *ctx) const;
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const char *c_str(const BaseCtx *ctx) const;
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bool operator<(const IdString &other) const { return index < other.index; }
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bool operator==(const IdString &other) const { return index == other.index; }
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bool operator!=(const IdString &other) const { return index != other.index; }
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bool empty() const { return index == 0; }
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unsigned int hash() const { return index; }
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template <typename... Args> bool in(Args... args) const
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{
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// Credit: https://articles.emptycrate.com/2016/05/14/folds_in_cpp11_ish.html
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bool result = false;
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(void)std::initializer_list<int>{(result = result || in(args), 0)...};
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return result;
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}
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bool in(const IdString &rhs) const { return *this == rhs; }
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};
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NEXTPNR_NAMESPACE_END
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#endif /* IDSTRING_H */
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