| /* Language-independent APIs to enable/disable per-location warnings. |
| |
| Copyright (C) 2021 Free Software Foundation, Inc. |
| Contributed by Martin Sebor <msebor@redhat.com> |
| |
| This file is part of GCC. |
| |
| GCC is free software; you can redistribute it and/or modify it under |
| the terms of the GNU General Public License as published by the Free |
| Software Foundation; either version 3, or (at your option) any later |
| version. |
| |
| GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
| WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GCC; see the file COPYING3. If not see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef DIAGNOSTIC_SPEC_H_INCLUDED |
| #define DIAGNOSTIC_SPEC_H_INCLUDED |
| |
| #include "hash-map.h" |
| |
| /* A "bitset" of warning groups. */ |
| |
| class nowarn_spec_t |
| { |
| public: |
| enum |
| { |
| /* Middle end warnings about invalid accesses. */ |
| NW_ACCESS = 1 << 0, |
| /* Front end/lexical warnings. */ |
| NW_LEXICAL = 1 << 1, |
| /* Warnings about null pointers. */ |
| NW_NONNULL = 1 << 2, |
| /* Warnings about uninitialized reads. */ |
| NW_UNINIT = 1 << 3, |
| /* Warnings about arithmetic overflow. */ |
| NW_VFLOW = 1 << 4, |
| /* All other unclassified warnings. */ |
| NW_OTHER = 1 << 5, |
| /* All groups of warnings. */ |
| NW_ALL = (NW_ACCESS | NW_LEXICAL | NW_NONNULL |
| | NW_UNINIT | NW_VFLOW | NW_OTHER) |
| }; |
| |
| nowarn_spec_t (): m_bits () { } |
| |
| nowarn_spec_t (opt_code); |
| |
| /* Return the raw bitset. */ |
| operator unsigned() const |
| { |
| return m_bits; |
| } |
| |
| /* Return true if the bitset is clear. */ |
| bool operator!() const |
| { |
| return !m_bits; |
| } |
| |
| /* Return the inverse of the bitset. */ |
| nowarn_spec_t operator~() const |
| { |
| nowarn_spec_t res (*this); |
| res.m_bits &= ~NW_ALL; |
| return res; |
| } |
| |
| /* Set *THIS to the bitwise OR of *THIS and RHS. */ |
| nowarn_spec_t& operator|= (const nowarn_spec_t &rhs) |
| { |
| m_bits |= rhs.m_bits; |
| return *this; |
| } |
| |
| /* Set *THIS to the bitwise AND of *THIS and RHS. */ |
| nowarn_spec_t& operator&= (const nowarn_spec_t &rhs) |
| { |
| m_bits &= rhs.m_bits; |
| return *this; |
| } |
| |
| /* Set *THIS to the bitwise exclusive OR of *THIS and RHS. */ |
| nowarn_spec_t& operator^= (const nowarn_spec_t &rhs) |
| { |
| m_bits ^= rhs.m_bits; |
| return *this; |
| } |
| |
| private: |
| /* Bitset of warning groups. */ |
| unsigned m_bits; |
| }; |
| |
| /* Return the bitwise OR of LHS and RHS. */ |
| |
| inline nowarn_spec_t |
| operator| (const nowarn_spec_t &lhs, const nowarn_spec_t &rhs) |
| { |
| return nowarn_spec_t (lhs) |= rhs; |
| } |
| |
| /* Return the bitwise AND of LHS and RHS. */ |
| |
| inline nowarn_spec_t |
| operator& (const nowarn_spec_t &lhs, const nowarn_spec_t &rhs) |
| { |
| return nowarn_spec_t (lhs) &= rhs; |
| } |
| |
| /* Return true if LHS is equal RHS. */ |
| |
| inline bool |
| operator== (const nowarn_spec_t &lhs, const nowarn_spec_t &rhs) |
| { |
| return static_cast<unsigned>(lhs) == static_cast<unsigned>(rhs); |
| } |
| |
| /* Return true if LHS is not equal RHS. */ |
| |
| inline bool |
| operator!= (const nowarn_spec_t &lhs, const nowarn_spec_t &rhs) |
| { |
| return !(lhs == rhs); |
| } |
| |
| typedef int_hash <location_t, 0, UINT_MAX> xint_hash_t; |
| typedef hash_map<xint_hash_t, nowarn_spec_t> xint_hash_map_t; |
| |
| /* A mapping from a 'location_t' to the warning spec set for it. */ |
| extern GTY(()) xint_hash_map_t *nowarn_map; |
| |
| #endif // DIAGNOSTIC_SPEC_H_INCLUDED |