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ffi-clang/lib/ffi/clang/lib.rb

109 lines
2.9 KiB
Ruby

# Copyright, 2010-2012 by Jari Bakken.
# Copyright, 2013, by Samuel G. D. Williams. <http://www.codeotaku.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in 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:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# 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
# AUTHORS 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 IN
# THE SOFTWARE.
require 'mkmf'
module FFI
module Clang
module Lib
extend FFI::Library
# Use LLVM_CONFIG if it was explicitly specified:
llvm_config = ENV['LLVM_CONFIG']
# If we aren't building for a specific version (e.g. travis) try to find llvm-config
unless ENV['LLVM_VERSION']
llvm_config ||= MakeMakefile.find_executable0("llvm-config")
end
libs = []
if ENV['LIBCLANG']
libs << ENV['LIBCLANG']
else
begin
xcode_dir = `xcode-select -p`.chomp
%W[
#{xcode_dir}/Toolchains/XcodeDefault.xctoolchain/usr/lib/libclang.dylib
#{xcode_dir}/usr/lib/libclang.dylib
].each do |f|
if File.exist? f
libs << f
break
end
end
rescue Errno::ENOENT
# Ignore
end
libs << "clang"
if llvm_config
llvm_library_dir = `#{llvm_config} --libdir`.chomp
platform = FFI::Clang.platform
case platform
when :darwin
libs << llvm_library_dir + '/libclang.dylib'
when :windows
llvm_bin_dir = `#{llvm_config} --bindir`.chomp
libs << llvm_bin_dir + '/libclang.dll'
else
libs << llvm_library_dir + '/libclang.so'
end
end
end
ffi_lib libs
def self.bitmask_from(enum, opts)
bitmask = 0
opts.each do |key, value|
if int = enum[key]
bitmask |= int
else
raise Error, "unknown option: #{key.inspect}, expected one of #{enum.symbols}"
end
end
bitmask
end
def self.opts_from(enum, bitmask)
bit = 1
opts = {}
while bitmask != 0
if bitmask & 1
if sym = enum[bit]
opts[sym] = true
else
raise Error, "unknown values: #{bit}, expected one of #{enum.symbols}"
end
end
bitmask >>= 1
bit <<= 1
end
opts
end
end
end
end