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#compdef include-what-you-use iwyu

# Copyright 2018 CERN for the benefit of the LHCb Collaboration.
# All rights reserved.
#
# Developed by:
#
#     CERN LBC group
#
#     CERN
#
#     https://home.web.cern.ch/
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# with the Software without restriction, including without limitation the
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
#     * Redistributions of source code must retain the above copyright notice,
#       this list of conditions and the following disclaimers.
#
#     * Redistributions in binary form must reproduce the above copyright
#       notice, this list of conditions and the following disclaimers in the
#       documentation and/or other materials provided with the distribution.
#
#     * Neither the names of the LBC group, CERN, nor the names of its
#       contributors may be used to endorse or promote products derived from
#       this Software without specific prior written permission.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
# CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH
# THE SOFTWARE.
#
# In applying this licence, CERN does not waive the privileges and immunities
# granted to it by virtue of its status as an Intergovernmental Organization or
# submit itself to any jurisdiction.
# ------------------------------------------------------------------------------
# Description
# -----------
#
#  Completion script for include-what-you-use 0.19 (https://github.com/include-what-you-use/include-what-you-use).
#
# ------------------------------------------------------------------------------

# TODO:
# - prevent _iwyu_opts from running once the first clang option got passed

_iwyu_opts() {
  _arguments \
    '--check_also=[print iwyu-violation info for files matching the given glob pattern]:glob pattern:' \
    '--keep=[tells iwyu to always keep these includes]:glob pattern' \
    '*'"--mapping_file=[iwyu mapping file]:iwyu mapping file:_path_files -g '*(/) *.imp'" \
    "--no_default_mappings[do not add iwyu's default mappings]" \
    '--pch_in_code[mark the first include in a translation unit as a precompiled header]' \
    '--prefix_header_includes=[what to do with command line includes]:command line include treatment:(add keep remove)' \
    "--transitive_includes_only[do not suggest that a file add headers that aren't already visible]" \
    '--max_line_length=[maximum line length for includes]:a number:' \
    '--comment_style=[set verbosity of "why" comments to]:comment style:(none short long)' \
    '--no_comments[do not add "why" comments]' \
    '--no_fwd_decls[do not use forward declarations]' \
    '--verbose=[the higher the level, the more output]:a number:' \
    '--quoted_includes_first[when sorting includes, place quoted ones first]' \
    '--cxx17ns[suggests the more concise syntax introduced in C++17]' \
    '--error=-[exit with N(default: 1) for iwyu violations]::exit code' \
    '--error_always=-[always exit with N (default: 1)]::exit code' \
    '--debug=[debug flags]:flag' \
    '--regex=[use specified regex dialect in iwyu]:dialect:(llvm ecmascript)' \
    '*: :_files'
}

_alternative \
  'iwyu:iwyu_option:_iwyu_opts' \
  'gcc:gcc_option:_gcc' \

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