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gen_bridge_metadata.rb
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gen_bridge_metadata.rb
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#!/usr/bin/ruby
# Copyright (c) 2006-2010, Apple Inc. All rights reserved.
# Copyright (c) 2005-2006 FUJIMOTO Hisakuni
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. Neither the name of Apple Inc. ("Apple") nor the names of
# its contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR
# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
# If we have a <ROOT>/System/Library/BridgeSupport/ruby-{version} path in
# the module search path, then set $slb to <ROOT>/System/Library/BridgeSupport.
# Otherwise, if this script is called as <ROOT>/usr/bin/gen_bridge_metadata,
# then set $slb to <ROOT>/System/Library/BridgeSupport.
$slb = $_slb_ = '/System/Library/BridgeSupport'
_slbr_ = "#{$slb}/ruby-#{RUBY_VERSION.sub(/^(\d+\.\d+)(\..*)?$/, '\1')}"
$:.unshift(_slbr_) unless $:.any? do |p|
if %r{#{_slbr_}$} =~ p
$slb = File.dirname(p)
true
end
end
if $slb == $_slb_
rel = $0.dup
if rel.sub!(/\/usr\/bin\/gen_bridge_metadata$/, '') and !rel.empty?
$slb = "#{rel}/#{$_slb_}"
end
end
require 'rexml/document'
require 'fileutils'
require 'optparse'
require 'tmpdir'
require 'pathname'
require 'ostruct'
require 'shellwords'
require 'bridgesupportparser'
class OCHeaderAnalyzer
CPP = ['/usr/bin/cpp-4.2', '/usr/bin/cpp-4.0', '/usr/bin/cpp'].find { |x| File.exist?(x) }
CPPFLAGS = "-D__APPLE_CPP__ -include /usr/include/AvailabilityMacros.h"
CPPFLAGS << " -D__GNUC__" unless /^cpp-4/.match(File.basename(CPP))
def self.data(data)
new(data)
end
def self.path(path, fails_on_error=true, do_64=false, flags='')
complete, filtered = OCHeaderAnalyzer.do_cpp(path, fails_on_error, do_64, flags)
new(filtered, complete, path)
end
def initialize(data, complete_data=nil, path=nil)
@externname = 'extern'
@cpp_result = data
@complete_cpp_result = complete_data
@path = path
end
# Get the list of C enumerations, as a Hash object (keys are the enumeration
# names and values are their values.
def enums
if @enums.nil?
re = /\benum\b\s*(\w+\s+)?\{([^}]*)\}/
@enums = {}
@cpp_result.scan(re).each do |m|
m[1].split(',').map do |i|
name, val = i.split('=', 2).map { |x| x.strip }
@enums[name] = val unless name.empty? or name[0] == ?#
end
end
end
@enums
end
def file_content
if @file_content.nil?
@file_content = File.read(@path)
# This is very naive, and won't work with embedded comments, but it
# should be enough for now.
@file_content.gsub!(/\/\*([^*]+)\*\//, '')
@file_content.gsub!(/\/\/.+$/, '')
end
@file_content
end
# Get the list of `#define KEY VAL' macros, as an Hash object.
def defines
if @defines.nil?
re = /#define\s+([^\s]+)\s+(\([^)]+\)|[^\s]+)\s*$/
@defines = {}
file_content.scan(re).each do |m|
next unless !m[0].include?('(') and m[1] != '\\'
@defines[m[0]] = m[1]
end
end
@defines
end
# Get the list of C structure names, as an Array.
def struct_names
re = /typedef\s+struct\s*\w*\s*((\w+)|\{([^{}]*(\{[^}]+\})?)*\}\s*([^\s]+))\s*(__attribute__\(.+\))?\s*;/ # Ouch...
@struct_names ||= @cpp_result.scan(re).map { |m|
a = m.compact
a.pop if /^__attribute__/.match(a.last)
a.last
}.flatten
end
# Get the list of CoreFoundation types, as an Array.
def cftype_names
re = /typedef\s+(const\s+)?struct\s*\w+\s*\*\s*([^\s]+Ref)\s*;/
@cftype_names ||= @cpp_result.scan(re).map { |m| m.compact[-1] }.flatten
end
# Get the list of function pointer types, as an Hash object (keys are the
# type names and values are their C declaration.
def function_pointer_types
unless @func_ptr_types
@func_ptr_types = {}
re = /typedef\s+([\w\s]+)\s*\(\s*\*\s*(\w+)\s*\)\s*\(([^)]*)\)\s*;/
data = @cpp_result.scan(re)
re = /typedef\s+([\w\s]+)\s*\(([^)]+)\)\s*;/
data |= @cpp_result.scan(re).map do |m|
ary = m[0].split(/(\w+)$/)
ary[1] << ' *'
ary << m[1]
ary
end
data.each do |m|
name = m[1]
args = m[2].split(',').map do |x|
x.strip!
if x.include?(' ')
ptr = x.sub!(/\[\]\s*$/, '')
x = x.sub(/\w+\s*$/, '').strip
ptr ? x + '*' : x
else
x
end
end
type = "#{m[0]}(*)(#{args.join(', ')})"
@func_ptr_types[name] = type
end
end
@func_ptr_types
end
def typedefs
if @typedefs.nil?
re = /^\s*typedef\s+(.+)\s+(\w+)\s*;$/
@typedefs = {}
data = (@complete_cpp_result or @cpp_result)
data.scan(re).each { |m| @typedefs[m[1]] = m[0] }
end
@typedefs
end
def externs
re = /^\s*#{@externname}\s+\b(.*)\s*;.*$/
@externs ||= @cpp_result.scan(re).map { |m| m[0].strip }
end
def constants
@constants ||= externs.map { |i| constant?(i, true) }.flatten.compact
end
def functions(inline=false)
if inline
return @inline_functions if @inline_functions
inline_func_re = /(inline|__inline__)\s+((__attribute__\(\([^)]*\)\)\s+)?([\w\s\*<>]+)\s*\(([^)]*)\)\s*)\{/
res = @cpp_result.scan(inline_func_re)
res.each { |x| x.delete_at(0); x.delete_at(1) }
else
return @functions if @functions
skip_inline_re = /(static)?\s(inline|__inline__)[^{;]+(;|\{([^{}]*(\{[^}]+\})?)*\})\s*/
skip_attributes_re = /__attribute__\((\([^()]*(\([^()]*\)|\))+)+\)/
func_re = /(^([\w\s\*<>]+)\s*\(([^)]*)\)\s*);/
res = @cpp_result.gsub(skip_inline_re, '').gsub(skip_attributes_re, '').scan(func_re)
end
funcs = res.map do |m|
orig, base, args = m
base.sub!(/^.*extern\s+/, '')
func = constant?(base)
if func
args = args.strip.split(',').map { |i| constant?(i) }
next if args.any? { |x| x.nil? }
args = [] if args.size == 1 and args[0].rettype == 'void'
FuncInfo.new(func, args, orig, inline)
end
end.compact
if inline
@inline_functions = funcs
else
@functions = funcs
end
funcs
end
def informal_protocols
self.ocmethods # to generate @inf_protocols
@inf_protocols
end
def ocmethods
if @ocmethods.nil?
@inf_protocols ||= {}
interface_re = /^@(interface|protocol)\s+(\w+)\s*([(<][^)>]+[)>])?/
end_re = /^@end/
body_re = /^\s*[-+]\s*(\([^)]+\))?\s*([^:\s;]+)/
args_re = /\w+\s*:/
prop_re = /^@property\s*(\([^)]+\))?\s*([^;]+);$/
current_interface = current_category = nil
@ocmethods = {}
i = 0
@cpp_result.each_line do |line|
size = line.size
line.strip!
if md = interface_re.match(line)
current_interface = md[1] == 'protocol' ? 'NSObject' : md[2]
current_category = md[3].delete('()<>').strip if md[3]
elsif end_re.match(line)
current_interface = current_category = nil
elsif current_interface and md = prop_re.match(line)
# Parsing Objective-C 2.0 properties.
if (a = md[2].split(/\s/)).length >= 2 \
and /^\w+$/.match(name = a[-1]) \
and (type = a[0..-2].join(' ')).index(',').nil?
getter, setter = name, "set#{name[0].chr.upcase + name[1..-1]}"
readonly = false
if attributes = md[1]
if md = /getter\s*=\s*(\w+)/.match(attributes)
getter = md[1]
end
if md = /setter\s*=\s*(\w+)/.match(attributes)
setter = md[1]
end
readonly = true if attributes.index('readonly')
end
typeinfo = VarInfo.new(type, '', '')
methods = (@ocmethods[current_interface] ||= [])
methods << MethodInfo.new(typeinfo, getter, false, [], line)
unless readonly
methods << MethodInfo.new(VarInfo.new('void', '', ''), setter + ':', false, [typeinfo], line)
end
end
elsif current_interface and (line[0] == ?+ or line[0] == ?-)
mtype = line[0]
data = @cpp_result[i..-1]
body_md = body_re.match(data)
next if body_md.nil?
rettype = body_md[1] ? body_md[1].delete('()') : 'id'
retval = VarInfo.new(rettype, '', '')
args = []
selector = ''
data = data[0..data.index(';')]
args_data = []
data.scan(args_re) { |x| args_data << [$`, x.delete(' '), $'] }
variadic = false
args_data.each_with_index do |ary, n|
before, argname, argtype = ary
arg_nameless = (n > 0 and /\)\s*$/.match(before))
argname = ':' if arg_nameless
realargname = nil
if n < args_data.length - 1
argtype.sub!(args_data[n + 1][2], '')
if arg_nameless
argtype.sub!(/(\w+\s*)?\w+\s*:\s*$/, '')
else
unless argtype.sub!(/(\w+)\s+\w+\s*:\s*$/) { |s| realargname = $1; '' }
# maybe the next argument is nameless
argtype.sub!(/\w+\s*:\s*$/, '')
end
end
else
argtype.sub!(/\s+__attribute__\(\(.+\)\)/, '')
if arg_nameless
argtype.sub!(/\w+\s*;$/, '')
else
unless argtype.sub!(/(\w+)\s*;$/) { |s| realargname = $1; '' }
variadic = argtype.sub!(/,\s*\.\.\.\s*;/, '') != nil
argtype.sub!(/\w+\s*$/, '') if variadic
end
end
end
selector << argname
realargname ||= argname.sub(/:/, '')
argtype = 'id' if argtype.strip.empty?
args << VarInfo.new(argtype, realargname, '') unless argtype.empty?
end
selector = body_md[2] if selector.empty?
args << VarInfo.new('...', 'vararg', '') if variadic
method = MethodInfo.new(retval, selector, line[0] == ?+, args, data)
if current_category and current_interface == 'NSObject'
(@inf_protocols[current_category] ||= []) << method
end
(@ocmethods[current_interface] ||= []) << method
end
i += size
end
end
return @ocmethods
end
#######
private
#######
def constant?(str, multi=false)
str.strip!
return nil if str.empty?
if str == '...'
VarInfo.new('...', '...', str)
else
str << " dummy" if str[-1].chr == '*' or str.index(/\s/).nil?
tokens = multi ? str.split(',') : [str]
part = tokens.first
part.sub!(/\s*__attribute__\(.+\)\s*$/, '')
re = /^([^()]*)\b(\w+)\b\s*(\[[^\]]*\])*$/
m = re.match(part)
if m
return nil if m[1].split(/\s+/).any? { |x| ['end', 'typedef'].include?(x) }
m = m.to_a[1..-1].compact.map { |i| i.strip }
m[0] += m[2] if m.size == 3
m[0] = 'void' if m[1] == 'void'
m[0] = m.join(' ') if m[0] == 'const'
var = begin
VarInfo.new(m[0], m[1], part)
rescue
return nil
end
if tokens.size > 1
[var, *tokens[1..-1].map { |x| constant?(m[0] + x.strip.sub(/^\*+/, '')) }]
else
var
end
end
end
end
def self.do_cpp(path, fails_on_error=true, do_64=false, flags='')
f_on = false
err_file = '/tmp/.cpp.err'
cpp_line = "#{CPP} #{CPPFLAGS} #{flags} #{do_64 ? '-D__LP64__' : ''} \"#{path}\" 2>#{err_file}"
complete_result = `#{cpp_line}`
if $?.to_i != 0 and fails_on_error
$stderr.puts File.read(err_file)
File.unlink(err_file)
raise "#{CPP} returned #{$?.to_int/256} exit status\nline was: #{cpp_line}"
end
result = complete_result.select { |s|
# First pass to only grab non-empty lines and the pre-processed lines
# only from the target header (and not the entire pre-processing result).
next if s.strip.empty?
m = %r{^#\s*\d+\s+"([^"]+)"}.match(s)
f_on = (File.basename(m[1]) == File.basename(path)) if m
f_on
}.select { |s|
# Second pass to ignore all pro-processor comments that were left.
/^#/.match(s) == nil
}.join
File.unlink(err_file)
return [complete_result, result]
end
class VarInfo
attr_reader :rettype, :stripped_rettype, :name, :orig
attr_accessor :octype
def initialize(type, name, orig)
@rettype = type
@name = name
@orig = orig
@rettype.gsub!( /\[[^\]]*\]/, '*' )
t = type.gsub(/\b(__)?const\b/,'')
t.gsub!(/<[^>]*>/, '')
t.gsub!(/\b(in|out|inout|oneway|const)\b/, '')
t.gsub!(/\b__private_extern__\b/, '')
re = /^\s*\(\s*/
if re.match(t)
parenAtBeginning = 1
end
t.gsub!(/^\s*\(?\s*/, '')
if parenAtBeginning
t.gsub!(/\s*\)?\s*$/, '')
else
t.gsub!(/\s*$/, '')
end
t.gsub!(/\n/, ' ')
raise "empty type (was '#{type}')" if t.empty?
@stripped_rettype = t
end
def function_pointer?(func_ptr_types)
type = (func_ptr_types[@stripped_rettype] or @stripped_rettype)
@function_pointer ||= FuncPointerInfo.new_from_type(type)
end
def <=>(x)
self.name <=> x.name
end
def hash
@name.hash
end
def eql?(o)
@name == o.name
end
end
class FuncInfo < VarInfo
attr_reader :args, :argc
def initialize(func, args, orig, inline=false)
super(func.rettype, func.name, orig)
@args = args
@argc = @args.size
if @args[-1] && @args[-1].rettype == '...'
@argc -= 1
@variadic = true
@args.pop
end
@inline = inline
self
end
def variadic?
@variadic
end
def inline?
@inline
end
end
class FuncPointerInfo < FuncInfo
def self.new_from_type(type)
@cache ||= {}
info = @cache[type]
return info if info
tokens = type.split(/\(\*\)/)
return nil if tokens.size != 2
rettype = tokens.first.strip
rest = tokens.last.sub(/^\s*\(\s*/, '').sub(/\s*\)\s*$/, '')
argtypes = rest.split(/,/).map { |x| x.strip }
@cache[type] = self.new(rettype, argtypes, type)
end
def initialize(rettype, argtypes, orig)
args = argtypes.map { |x| VarInfo.new(x, '', '') }
super(VarInfo.new(rettype, '', ''), args, orig)
end
end
class MethodInfo < FuncInfo
attr_reader :selector
def initialize(method, selector, is_class, args, orig)
super(method, args, orig)
@selector, @is_class = selector, is_class
self
end
def class_method?
@is_class
end
def <=>(o)
@selector <=> o.selector
end
def hash
@selector.hash
end
def eql?(o)
@selector == o.selector
end
end
end
PRODUCTVERSION = `sw_vers -productVersion`.strip.to_f
TIGER_OR_BELOW = PRODUCTVERSION <= 10.4
SNOWLEOPARD_OR_BELOW = PRODUCTVERSION <= 10.6
IS_PPC = `arch`.strip == 'ppc'
class BridgeSupportGenerator
VERSION = '1.0'
ARCH = 'i386'
ARCH64 = 'x86_64'
FORMATS = ['final', 'exceptions-template', 'dylib', 'complete']
FORMAT_FINAL, FORMAT_TEMPLATE, FORMAT_DYLIB, FORMAT_COMPLETE = FORMATS
attr_accessor :headers, :generate_format, :private, :frameworks,
:exception_paths, :compiler_flags, :enable_64, :out_file,
:pch_files, :emulate_ppc
attr_reader :resolved_structs, :resolved_cftypes, :resolved_enums,
:types_encoding, :defines, :resolved_inf_protocols_encoding
OAH_TRANSLATE = '/usr/libexec/oah/translate'
def initialize
@parser = nil
@headers = []
@imports = []
@incdirs = []
@exception_paths = []
@out_file = nil
@generate_format = FORMAT_FINAL
@private = false
@compiler_flags = nil
@frameworks = []
@enable_64 = false
@emulate_ppc = false # PPC support is disabled since SnowLeopard
end
# def duplicate
# g = BridgeSupportGenerator.new
# g.headers = @headers
# g.exception_paths = @exception_paths
# g.out_file = @out_file
# g.generate_format = @generate_format
# g.private = @private
# g.compiler_flags = @compiler_flags
# g.frameworks = @frameworks
# g.enable_64 = @enable_64
# g.emulate_ppc = @emulate_ppc
# g.pch_files = @pch_files
# return g
# end
def add_header(path)
@headers << path
@imports << File.basename(path)
@import_directive ||= ''
@import_directive << "\n#include <#{File.basename(path)}>"
end
# Encodes the 4 include path pieces into a single string.
# "group" should be 'A', 'Q' or 'S' for Angled, Quoted or System.
# "isUserSupplied" and "isFramework" are booleans
def encode_includes(path, group, isUserSupplied, isFramework)
group + (isUserSupplied ? 'T' : 'F') + (isFramework ? 'T' : 'F') + path
end
def _parse(args, arch, ignore_merge_errors = false)
bool_sel_types = []
@all_sel_types.each_index { |i| bool_sel_types[i] = @all_sel_types[i].gsub(/\b(?:BOOL|Boolean)\b/, 'bool') }
bool_types = []
@method_exception_types.each_index { |i| bool_types[i] = @method_exception_types[i].gsub(/\b(?:BOOL|Boolean)\b/, 'bool') }
parser = Bridgesupportparser::Parser.new(args.imports, @headers, bool_sel_types, bool_types, args.defines, args.incdirs, args.sysroot)
case @generate_format
when FORMAT_DYLIB
parser.only_parse_class(Bridgesupportparser::AFunction)
end
$stderr.puts "### _parse(\"#{arch}-apple-darwin#{args.darwinvers}\")" if $DEBUG
parser.parse("#{arch}-apple-darwin#{args.darwinvers}")
@sel_types = {}
@all_sel_types.each_index do |i|
t = parser.special_method_encodings[i]
raise "No sel_of_type corresponding to #{@all_sel_types[i]}" if t.nil?
@sel_types[@all_sel_types[i]] = t
end
@types = {}
@method_exception_types.each_index do |i|
t = parser.special_type_encodings[i]
raise "No type corresponding to #{@method_exception_types[i]}" if t.nil?
@types[@method_exception_types[i]] = t
end
# structs
@structs.each do |name, ary|
s = parser.all_structs[name]
raise "No struct corresponding to #{name}" if s.nil?
s[:opaque] = true if s && ary[0]
end
# Note that struct names (k below) may either be "struct xxx" or just
# "xxx" if due to a typedef. Thus, we need to use the actual name
# (v.name below) if we want to test for a leading underscore.
parser.all_structs.delete_if { |k, v| v.name[0] == ?_ }
# cftypes
@cftypes.each do |name, ary|
c = parser.all_cftypes[name]
if c.nil?
$stderr.puts "No cftype \"#{name}\" to apply exceptions"
else
c[:gettypeid_func] = ary[0] unless ary[0].nil?
c[:_ignore_tollfree] = true if ary[1] == 'true'
end
end
add_tollfree(parser)
# opaques
@opaques_to_ignore.each { |o| parser.all_opaques.delete(o) }
@opaques.each do |name, type|
next if type.nil?
parser.all_structs.delete(name)
parser.all_opaques[name] = Bridgesupportparser::OpaqueInfo.new(parser, name, type)
end
#enums
parser.all_enums.delete_if { |k, v| k[0] == ?_ }
# vars
parser.all_vars.delete_if { |k, v| k[0] == ?_ }
# macrostrings
parser.all_macrostrings.delete_if do |k, v|
next true if k[0] == ?_
@ignored_defines_regexps.any? { |re| re.match(k) }
end
# macronumbers (eventually merged with enums)
parser.all_macronumbers.delete_if do |k, v|
next true if k[0] == ?_
@ignored_defines_regexps.any? { |re| re.match(k) }
end
# evaluate mumeric macros that call functions
add_numberfunccall(parser)
# enums
parser.all_enums.delete_if { |k, v| k[0] == ?_ }
# funcs and func_aliases
keepfunc = {}
parser.all_func_aliases.each_value { |v| keepfunc[v.original] = true }
parser.all_funcs.delete_if { |k, v| !keepfunc[k] && k[0] == ?_ }
# Merge with exceptions.
@exceptions.each { |x| merge_with_exceptions(parser, x, ignore_merge_errors) }
parser
end
protected :_parse
def makedarwinvers(vers)
pieces = vers.split('.')
raise "Version \"#{vers}\" not 10.x[.y]" if pieces.length < 2 || pieces.length > 3 || pieces[0] != '10' || pieces[1] !~ /^\d+$/ || (pieces.length == 3 && pieces[2] !~ /^\d+$/)
pieces << '0' if pieces.length == 2
return sprintf('%d.%s', pieces[1].to_i + 4, pieces[2])
end
protected :makedarwinvers
# parse cc flags, and return defines, include directories, include files
# and the sysroot. For clang, system directories get sysroot applied,'
# but for gcc, -isystem directories don't get sysroot applied. So we
# collect -isystem directories separately, and combined them with the
# regular incdirs directories (so they are in the Angled group, but follow
# all -I and -F directories.
def parse_cc_args(args)
darwinvers = nil
defines = []
incdirs = []
incsys = []
includes = []
sysroot = '/'
words = Shellwords.shellwords(args)
until words.empty?
o = words.shift
case o
when o.sub!(/^-D/, '') then defines << (o.empty? ? words.shift : o)
when o.sub!(/^-I/, '') then incdirs << encode_includes(o.empty? ? words.shift : o, 'A', true, false)
when o.sub!(/^-F/, '') then incdirs << encode_includes(o.empty? ? words.shift : o, 'A', true, true)
when o.sub!(/^--sysroot=/, '') then sysroot = o
when '-isystem' then incsys << encode_includes(words.shift, 'A', true, false)
when '-iquote' then incdirs << encode_includes(words.shift, 'Q', true, false)
when '-isysroot' then sysroot = words.shift
when '-include' then includes << words.shift
when o.sub!(/^-mmacosx-version-min=/, '') then darwinvers = makedarwinvers(o)
end
end
return darwinvers, defines, incdirs + incsys, includes, sysroot
end
protected :parse_cc_args
def parse(enable_64, compiler_flags_64 = nil)
_darwinvers = makedarwinvers(ENV.has_key?('MACOSX_DEPLOYMENT_TARGET') ? ENV['MACOSX_DEPLOYMENT_TARGET'] : `sw_vers -productVersion`)
darwinvers = nil
defines = []
incdirs = []
includes = []
sysroot = '/'
unless compiler_flags.nil?
darwinvers, defines, incdirs, includes, sysroot = parse_cc_args(compiler_flags)
end
prepare(sysroot == '/' ? '' : sysroot)
@incdirs << encode_includes("#{$slb}/include", 'A', false, false)
@incdirs << encode_includes('/System/Library/Frameworks/CoreServices.framework/Frameworks', 'S', false, true)
@imports.unshift('AvailabilityMacros.h')
@imports.unshift('_BS_bool.h')
args = OpenStruct.new
args.darwinvers = darwinvers.nil? ? _darwinvers : darwinvers
args.imports = includes + @imports
args.defines = defines + %w{__APPLE_CPP__=1}
args.incdirs = incdirs + @incdirs
args.sysroot = sysroot
@parser = _parse(args, ARCH)
if enable_64
unless compiler_flags_64.nil? || compiler_flags == compiler_flags_64
darwinvers, defines, incdirs, includes, sysroot = parse_cc_args(compiler_flags_64)
args.darwinvers = darwinvers.nil? ? _darwinvers : darwinvers
args.imports = includes + @imports
args.defines = defines + %w{__APPLE_CPP__=1}
args.incdirs = incdirs + @incdirs
args.sysroot = sysroot
end
parser64 = _parse(args, ARCH64, true)
@parser.mergeWith64!(parser64)
end
end
def write
case @generate_format
when FORMAT_DYLIB
generate_precompiled_header
generate_dylib
when FORMAT_TEMPLATE
generate_template
else
generate_xml
end
end
def cleanup
delete_precompiled_header
end
def xml_document
@xml_document ||= generate_xml_document
end
def generate_format=(format)
if @generate_format != format
@generate_format = format
@xml_document = nil
end
end
def merge_64_metadata(g)
raise "given generator isn't 64-bit" unless g.enable_64
[:types_encoding, :resolved_structs, :resolved_enums,
:defines, :resolved_inf_protocols_encoding].each do |sym|
hash = send(sym)
g.send(sym).each do |name, val64|
if val = hash[name]
hash[name] = [val, val64]
else
hash[name] = [nil, val64]
end
end
end
g.resolved_cftypes.each do |name, ary64|
type64 = ary64.first
if ary = @resolved_cftypes[name]
ary << type64
else
ary = ary64.dup
ary[0] = nil
ary << type64
@resolved_cftypes[name] = ary
end
end
end
def has_inline_functions?
@parser.all_funcs.values.any? { |x| x.inline? }
end
def self.dependencies_of_framework(path)
@dependencies ||= {}
name = File.basename(path, '.framework')
path = File.join(path, name)
deps = @dependencies[path]
if deps.nil?
deps = `otool -L "#{path}"`.scan(/\t([^\s]+)/).map { |m|
dpath = m[0]
next if File.basename(dpath) == name
next if dpath.include?('PrivateFrameworks')
next unless dpath.sub!(/\.framework\/Versions\/\w+\/\w+$/, '')
dpath + '.framework'
}.compact
@dependencies[path] = deps
end
deps
end
def self.doc_for_dependency(fpath)
@dep_docs ||= {}
doc = @dep_docs[fpath]
if doc.nil?
fname = File.basename(fpath, '.framework')
paths = []
if bsroot = ENV['BSROOT']
paths << File.join(bsroot, "#{fname}.bridgesupport")
end
path = File.join(fpath, "Resources/BridgeSupport/#{fname}.bridgesupport")
alt_path = "/Library/BridgeSupport/#{fname}.bridgesupport"
if dstroot = ENV['DSTROOT']
path = File.join(dstroot, path)
alt_path = File.join(dstroot, alt_path)
end
paths << path
paths << alt_path
a = Dir.glob(File.join(fpath, '**', '*.bridgesupport'))
if a.length == 1
paths << a.first
end
bspath = paths.find { |p| File.exist?(p) }
return nil if bspath.nil?
doc = REXML::Document.new(File.read(bspath))
@dep_docs[fpath] = doc
end
doc
end
#######
private
#######
def proto_to_sel(proto)
sel = proto.strip
sel.sub!(/^[-+]\s*/, '')
sel.sub!(/\s*;$/, '')
sel.sub!(/^\([^)]+\)\s*/, '')
sel.gsub!(/\([^)]+\)\s*\w+/, '')
sel.gsub!(/\s+/, '')
sel
end
def prepare(prefix_sysroot)
# Clear previously-harvested stuff.
[ @resolved_structs,
@resolved_inf_protocols_encoding,
@resolved_enums,
@resolved_cftypes,
@collect_types_encoding ].compact.each { |h| h.clear }
return if @prepared
@cpp_flags = @compiler_flags ? @compiler_flags.scan(/-[ID][^\s]+/).join(' ') + ' ' : ''
@frameworks.each { |f| handle_framework(prefix_sysroot, f) }
if @headers.empty?
raise "No headers to parse"
end
if @import_directive.nil? or @compiler_flags.nil?
raise "Compiler flags need to be provided for non-framework targets."
end
if @generate_format == FORMAT_DYLIB and @out_file.nil?
raise "Generating dylib format requires an output file"
end
if @enable_64 and (@generate_format != FORMAT_FINAL \
and @generate_format != FORMAT_COMPLETE)
raise "Enabling 64-bit only works with the final metadata format"
end
# Link against Foundation by default.
if @compiler_flags and @import_directive
@imports.unshift('Foundation/Foundation.h')
@import_directive.insert(0, "#import <Foundation/Foundation.h>\n")
@compiler_flags << ' -framework Foundation '
end
# Open exceptions, ignore mentionned headers.
# Keep the list of structs, CFTypes, boxed and methods return/args types.
@all_sel_types = []
@ignored_defines_regexps = [/^AVAILABLE_.+_VERSION_\d*/]
@structs = {}
@cftypes = {}
@opaques = {}
@opaques_to_ignore = []
@method_exception_types = []
@func_aliases = {}
@exceptions = @exception_paths.map { |x| REXML::Document.new(File.read(x)) }
@exceptions.each do |doc|
doc.get_elements('/signatures/ignored_headers/header').each do |element|
path = element.text
path_re = /#{path}/
ignored = @headers.select { |x| path_re.match(x) }
@headers -= ignored
if @import_directive
ignored.each do |x|
@imports.delete_if { |i| i.end_with?(File.basename(x)) }
@import_directive.gsub!(/#import.+#{File.basename(x)}>/, '')
end
end
end
doc.get_elements('/signatures/ignored_defines/regex').each do |element|
@ignored_defines_regexps << Regexp.new(element.text.strip)
end
doc.get_elements('/signatures/struct').each do |elem|
@structs[elem.attributes['name']] = [elem.attributes['opaque'] == 'true', elem.attributes['only_in']]
end
doc.get_elements('/signatures/cftype').each do |elem|
@cftypes[elem.attributes['name']] = [
elem.attributes['gettypeid_func'],
elem.attributes['ignore_tollfree'] == 'true'
]
end
doc.get_elements('/signatures/opaque').each do |elem|
name, type, ignore = elem.attributes['name'], elem.attributes['type'], elem.attributes['ignore']
@opaques[name] = type
@opaques_to_ignore << name if ignore == 'true'
end
['/signatures/class/method', '/signatures/function'].each do |path|
doc.get_elements(path).each do |elem|
ary = [elem.elements['retval']]
ary.concat(elem.get_elements('arg'))
ary.compact.each do |elem2|
type = elem2.attributes['type']
if @enable_64
type64 = elem2.attributes['type64']
if type64 == ''
type = nil
elsif type != type64
type = type64
end
end
@method_exception_types << type if type
if sel_type = elem2.attributes['sel_of_type']
@all_sel_types << sel_type
end
end
end
end
doc.get_elements('/signatures/function_alias').each do |elem|
name, original = elem.attributes['name'], elem.attributes['original']
@func_aliases[original.strip] = name.strip
end
end
# Prepare for the future type and sel_of_type attributes.
@method_exception_types.uniq!
@all_sel_types.uniq!
# Collect necessary elements from the dependencies bridge support files.
@dep_cftypes = []
@dependencies ||= []
@dependencies.each do |path|
doc = BridgeSupportGenerator.doc_for_dependency(path)
next if doc.nil?
doc.get_elements('/signatures/cftype').each do |elem|
@dep_cftypes << elem.attributes['name']
end
end
# We are done!
@prepared = true
end
def encoding_of(varinfo, try64=false)
if /^(BOOL|Boolean)$/.match(varinfo.stripped_rettype)
'B'
elsif /^(BOOL|Boolean)\s*\*$/.match(varinfo.stripped_rettype)
'^B'
else
v = @types_encoding[varinfo.stripped_rettype]
if try64
v.is_a?(Array) ? v.last : nil
else
v.is_a?(Array) ? v.first : v
end