mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-14 15:37:55 +00:00
445 lines
14 KiB
Python
445 lines
14 KiB
Python
#!/usr/bin/env python
|
|
# header.py - Generate C++ header files from IDL.
|
|
#
|
|
# ***** BEGIN LICENSE BLOCK *****
|
|
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
#
|
|
# The contents of this file are subject to the Mozilla Public License Version
|
|
# 1.1 (the "License"); you may not use this file except in compliance with
|
|
# the License. You may obtain a copy of the License at
|
|
# http://www.mozilla.org/MPL/
|
|
#
|
|
# Software distributed under the License is distributed on an "AS IS" basis,
|
|
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
# for the specific language governing rights and limitations under the
|
|
# License.
|
|
#
|
|
# The Original Code is mozilla.org code.
|
|
#
|
|
# The Initial Developer of the Original Code is
|
|
# Mozilla Foundation.
|
|
# Portions created by the Initial Developer are Copyright (C) 2008
|
|
# the Initial Developer. All Rights Reserved.
|
|
#
|
|
# Contributor(s):
|
|
# Benjamin Smedberg <benjamin@smedbergs.us>
|
|
#
|
|
# Alternatively, the contents of this file may be used under the terms of
|
|
# either of the GNU General Public License Version 2 or later (the "GPL"),
|
|
# or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
# in which case the provisions of the GPL or the LGPL are applicable instead
|
|
# of those above. If you wish to allow use of your version of this file only
|
|
# under the terms of either the GPL or the LGPL, and not to allow others to
|
|
# use your version of this file under the terms of the MPL, indicate your
|
|
# decision by deleting the provisions above and replace them with the notice
|
|
# and other provisions required by the GPL or the LGPL. If you do not delete
|
|
# the provisions above, a recipient may use your version of this file under
|
|
# the terms of any one of the MPL, the GPL or the LGPL.
|
|
#
|
|
# ***** END LICENSE BLOCK *****
|
|
|
|
"""Print a C++ header file for the IDL files specified on the command line"""
|
|
|
|
import sys, os.path, re, xpidl
|
|
|
|
printdoccomments = False
|
|
|
|
if printdoccomments:
|
|
def printComments(fd, clist, indent):
|
|
for c in clist:
|
|
fd.write("%s%s\n" % (indent, c))
|
|
else:
|
|
def printComments(fd, clist, indent):
|
|
pass
|
|
|
|
def firstCap(str):
|
|
return str[0].upper() + str[1:]
|
|
|
|
def attributeParamName(a):
|
|
return "a" + firstCap(a.name)
|
|
|
|
def attributeNativeName(a, getter):
|
|
binaryname = a.binaryname is not None and a.binaryname or firstCap(a.name)
|
|
return "%s%s" % (getter and 'Get' or 'Set', binaryname)
|
|
|
|
def attributeParamlist(a, getter):
|
|
return "%s%s" % (a.realtype.nativeType(getter and 'out' or 'in'),
|
|
attributeParamName(a))
|
|
|
|
def attributeAsNative(a, getter):
|
|
scriptable = a.isScriptable() and "NS_SCRIPTABLE " or ""
|
|
params = {'scriptable': scriptable,
|
|
'binaryname': attributeNativeName(a, getter),
|
|
'paramlist': attributeParamlist(a, getter)}
|
|
return "%(scriptable)sNS_IMETHOD %(binaryname)s(%(paramlist)s)" % params
|
|
|
|
def methodNativeName(m):
|
|
return m.binaryname is not None and m.binaryname or firstCap(m.name)
|
|
|
|
def methodReturnType(m, macro):
|
|
"""macro should be NS_IMETHOD or NS_IMETHODIMP"""
|
|
if m.notxpcom:
|
|
return "%s_(%s)" % (macro, m.realtype.nativeType('in').strip())
|
|
else:
|
|
return macro
|
|
|
|
def methodAsNative(m):
|
|
scriptable = m.isScriptable() and "NS_SCRIPTABLE " or ""
|
|
|
|
return "%s%s %s(%s)" % (scriptable,
|
|
methodReturnType(m, 'NS_IMETHOD'),
|
|
methodNativeName(m),
|
|
paramlistAsNative(m.params,
|
|
m.realtype,
|
|
notxpcom=m.notxpcom))
|
|
|
|
def paramlistAsNative(l, rettype, notxpcom, empty='void'):
|
|
l = list(l)
|
|
if not notxpcom and rettype.name != 'void':
|
|
l.append(xpidl.Param(paramtype='out',
|
|
type=None,
|
|
name='_retval',
|
|
attlist=[],
|
|
location=None,
|
|
realtype=rettype))
|
|
|
|
if len(l) == 0:
|
|
return empty
|
|
|
|
return ", ".join([paramAsNative(p) for p in l])
|
|
|
|
def paramAsNative(p):
|
|
if p.paramtype == 'in':
|
|
typeannotate = ''
|
|
else:
|
|
typeannotate = ' NS_%sPARAM' % p.paramtype.upper()
|
|
|
|
return "%s%s%s" % (p.nativeType(),
|
|
p.name,
|
|
typeannotate)
|
|
|
|
def paramlistNames(l, rettype, notxpcom):
|
|
names = [p.name for p in l]
|
|
if not notxpcom and rettype.name != 'void':
|
|
names.append('_retval')
|
|
if len(names) == 0:
|
|
return ''
|
|
return ', '.join(names)
|
|
|
|
header = """/*
|
|
* DO NOT EDIT. THIS FILE IS GENERATED FROM %(filename)s
|
|
*/
|
|
|
|
#ifndef __gen_%(basename)s_h__
|
|
#define __gen_%(basename)s_h__
|
|
"""
|
|
|
|
include = """
|
|
#ifndef __gen_%(basename)s_h__
|
|
#include "%(basename)s.h"
|
|
#endif
|
|
"""
|
|
|
|
header_end = """/* For IDL files that don't want to include root IDL files. */
|
|
#ifndef NS_NO_VTABLE
|
|
#define NS_NO_VTABLE
|
|
#endif
|
|
"""
|
|
|
|
footer = """
|
|
#endif /* __gen_%(basename)s_h__ */
|
|
"""
|
|
|
|
forward_decl = """class %(name)s; /* forward declaration */
|
|
|
|
"""
|
|
|
|
def idl_basename(f):
|
|
"""returns the base name of a file with the last extension stripped"""
|
|
return os.path.basename(f).rpartition('.')[0]
|
|
|
|
def print_header(idl, fd, filename):
|
|
fd.write(header % {'filename': filename,
|
|
'basename': idl_basename(filename)})
|
|
|
|
foundinc = False
|
|
for inc in idl.includes():
|
|
if not foundinc:
|
|
foundinc = True
|
|
fd.write('\n')
|
|
fd.write(include % {'basename': idl_basename(inc.filename)})
|
|
|
|
fd.write('\n')
|
|
fd.write(header_end)
|
|
|
|
for p in idl.productions:
|
|
if p.kind == 'include': continue
|
|
if p.kind == 'cdata':
|
|
fd.write(p.data)
|
|
continue
|
|
|
|
if p.kind == 'forward':
|
|
fd.write(forward_decl % {'name': p.name})
|
|
continue
|
|
if p.kind == 'interface':
|
|
write_interface(p, fd)
|
|
continue
|
|
if p.kind == 'typedef':
|
|
printComments(fd, p.doccomments, '')
|
|
fd.write("typedef %s %s;\n\n" % (p.realtype.nativeType('in'),
|
|
p.name))
|
|
|
|
fd.write(footer % {'basename': idl_basename(filename)})
|
|
|
|
iface_header = r"""
|
|
/* starting interface: %(name)s */
|
|
#define %(defname)s_IID_STR "%(iid)s"
|
|
|
|
#define %(defname)s_IID \
|
|
{0x%(m0)s, 0x%(m1)s, 0x%(m2)s, \
|
|
{ %(m3joined)s }}
|
|
|
|
"""
|
|
|
|
uuid_decoder = re.compile(r"""(?P<m0>[a-f0-9]{8})-
|
|
(?P<m1>[a-f0-9]{4})-
|
|
(?P<m2>[a-f0-9]{4})-
|
|
(?P<m3>[a-f0-9]{4})-
|
|
(?P<m4>[a-f0-9]{12})$""", re.X)
|
|
|
|
iface_prolog = """ {
|
|
public:
|
|
|
|
NS_DECLARE_STATIC_IID_ACCESSOR(%(defname)s_IID)
|
|
|
|
"""
|
|
|
|
iface_epilog = """};
|
|
|
|
NS_DEFINE_STATIC_IID_ACCESSOR(%(name)s, %(defname)s_IID)
|
|
|
|
/* Use this macro when declaring classes that implement this interface. */
|
|
#define NS_DECL_%(macroname)s """
|
|
|
|
|
|
iface_forward = """
|
|
|
|
/* Use this macro to declare functions that forward the behavior of this interface to another object. */
|
|
#define NS_FORWARD_%(macroname)s(_to) """
|
|
|
|
iface_forward_safe = """
|
|
|
|
/* Use this macro to declare functions that forward the behavior of this interface to another object in a safe way. */
|
|
#define NS_FORWARD_SAFE_%(macroname)s(_to) """
|
|
|
|
iface_template_prolog = """
|
|
|
|
#if 0
|
|
/* Use the code below as a template for the implementation class for this interface. */
|
|
|
|
/* Header file */
|
|
class %(implclass)s : public %(name)s
|
|
{
|
|
public:
|
|
NS_DECL_ISUPPORTS
|
|
NS_DECL_%(macroname)s
|
|
|
|
%(implclass)s();
|
|
|
|
private:
|
|
~%(implclass)s();
|
|
|
|
protected:
|
|
/* additional members */
|
|
};
|
|
|
|
/* Implementation file */
|
|
NS_IMPL_ISUPPORTS1(%(implclass)s, %(name)s)
|
|
|
|
%(implclass)s::%(implclass)s()
|
|
{
|
|
/* member initializers and constructor code */
|
|
}
|
|
|
|
%(implclass)s::~%(implclass)s()
|
|
{
|
|
/* destructor code */
|
|
}
|
|
|
|
"""
|
|
|
|
example_tmpl = """%(returntype)s %(implclass)s::%(nativeName)s(%(paramList)s)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
"""
|
|
|
|
iface_template_epilog = """/* End of implementation class template. */
|
|
#endif
|
|
|
|
"""
|
|
|
|
def write_interface(iface, fd):
|
|
if iface.namemap is None:
|
|
raise Exception("Interface was not resolved.")
|
|
|
|
def write_const_decl(c):
|
|
printComments(fd, c.doccomments, ' ')
|
|
|
|
basetype = c.basetype
|
|
value = c.getValue()
|
|
|
|
fd.write(" enum { %(name)s = %(value)s%(signed)s };\n\n" % {
|
|
'name': c.name,
|
|
'value': value,
|
|
'signed': (not basetype.signed) and 'U' or ''})
|
|
|
|
def write_method_decl(m):
|
|
printComments(fd, m.doccomments, ' ')
|
|
|
|
fd.write(" /* %s */\n" % m.toIDL())
|
|
fd.write(" %s = 0;\n\n" % methodAsNative(m))
|
|
|
|
def write_attr_decl(a):
|
|
printComments(fd, a.doccomments, ' ')
|
|
|
|
fd.write(" /* %s */\n" % a.toIDL());
|
|
|
|
fd.write(" %s = 0;\n" % attributeAsNative(a, True))
|
|
if not a.readonly:
|
|
fd.write(" %s = 0;\n" % attributeAsNative(a, False))
|
|
fd.write("\n")
|
|
|
|
defname = iface.name.upper()
|
|
if iface.name[0:2] == 'ns':
|
|
defname = 'NS_' + defname[2:]
|
|
|
|
names = uuid_decoder.match(iface.attributes.uuid).groupdict()
|
|
m3str = names['m3'] + names['m4']
|
|
names['m3joined'] = ", ".join(["0x%s" % m3str[i:i+2] for i in xrange(0, 16, 2)])
|
|
|
|
if iface.name[2] == 'I':
|
|
implclass = iface.name[:2] + iface.name[3:]
|
|
else:
|
|
implclass = '_MYCLASS_'
|
|
|
|
names.update({'defname': defname,
|
|
'macroname': iface.name.upper(),
|
|
'name': iface.name,
|
|
'iid': iface.attributes.uuid,
|
|
'implclass': implclass})
|
|
|
|
fd.write(iface_header % names)
|
|
|
|
printComments(fd, iface.doccomments, '')
|
|
|
|
fd.write("class ")
|
|
foundcdata = False
|
|
for m in iface.members:
|
|
if isinstance(m, xpidl.CDATA):
|
|
foundcdata = True
|
|
|
|
if not foundcdata:
|
|
fd.write("NS_NO_VTABLE ")
|
|
|
|
if iface.attributes.scriptable:
|
|
fd.write("NS_SCRIPTABLE ")
|
|
if iface.attributes.deprecated:
|
|
fd.write("NS_DEPRECATED ")
|
|
fd.write(iface.name)
|
|
if iface.base:
|
|
fd.write(" : public %s" % iface.base)
|
|
fd.write(iface_prolog % names)
|
|
for member in iface.members:
|
|
if isinstance(member, xpidl.ConstMember):
|
|
write_const_decl(member)
|
|
elif isinstance(member, xpidl.Attribute):
|
|
write_attr_decl(member)
|
|
elif isinstance(member, xpidl.Method):
|
|
write_method_decl(member)
|
|
elif isinstance(member, xpidl.CDATA):
|
|
fd.write(" %s" % member.data)
|
|
else:
|
|
raise Exception("Unexpected interface member: %s" % member)
|
|
|
|
fd.write(iface_epilog % names)
|
|
|
|
for member in iface.members:
|
|
if isinstance(member, xpidl.Attribute):
|
|
fd.write("\\\n %s; " % attributeAsNative(member, True))
|
|
if not member.readonly:
|
|
fd.write("\\\n %s; " % attributeAsNative(member, False))
|
|
elif isinstance(member, xpidl.Method):
|
|
fd.write("\\\n %s; " % methodAsNative(member))
|
|
if len(iface.members) == 0:
|
|
fd.write('\\\n /* no methods! */')
|
|
elif not member.kind in ('attribute', 'method'):
|
|
fd.write('\\')
|
|
|
|
fd.write(iface_forward % names)
|
|
|
|
def emitTemplate(tmpl):
|
|
for member in iface.members:
|
|
if isinstance(member, xpidl.Attribute):
|
|
fd.write(tmpl % {'asNative': attributeAsNative(member, True),
|
|
'nativeName': attributeNativeName(member, True),
|
|
'paramList': attributeParamName(member)})
|
|
if not member.readonly:
|
|
fd.write(tmpl % {'asNative': attributeAsNative(member, False),
|
|
'nativeName': attributeNativeName(member, False),
|
|
'paramList': attributeParamName(member)})
|
|
elif isinstance(member, xpidl.Method):
|
|
fd.write(tmpl % {'asNative': methodAsNative(member),
|
|
'nativeName': methodNativeName(member),
|
|
'paramList': paramlistNames(member.params, member.realtype, member.notxpcom)})
|
|
if len(iface.members) == 0:
|
|
fd.write('\\\n /* no methods! */')
|
|
elif not member.kind in ('attribute', 'method'):
|
|
fd.write('\\')
|
|
|
|
emitTemplate("\\\n %(asNative)s { return _to %(nativeName)s(%(paramList)s); } ")
|
|
|
|
fd.write(iface_forward_safe % names)
|
|
|
|
emitTemplate("\\\n %(asNative)s { return !_to ? NS_ERROR_NULL_POINTER : _to->%(nativeName)s(%(paramList)s); } ")
|
|
|
|
fd.write(iface_template_prolog % names)
|
|
|
|
for member in iface.members:
|
|
if isinstance(member, xpidl.ConstMember) or isinstance(member, xpidl.CDATA): continue
|
|
fd.write("/* %s */\n" % member.toIDL())
|
|
if isinstance(member, xpidl.Attribute):
|
|
fd.write(example_tmpl % {'implclass': implclass,
|
|
'returntype': 'NS_IMETHODIMP',
|
|
'nativeName': attributeNativeName(member, True),
|
|
'paramList': attributeParamlist(member, True)})
|
|
if not member.readonly:
|
|
fd.write(example_tmpl % {'implclass': implclass,
|
|
'returntype': 'NS_IMETHODIMP',
|
|
'nativeName': attributeNativeName(member, False),
|
|
'paramList': attributeParamlist(member, False)})
|
|
elif isinstance(member, xpidl.Method):
|
|
fd.write(example_tmpl % {'implclass': implclass,
|
|
'returntype': methodReturnType(member, 'NS_IMETHODIMP'),
|
|
'nativeName': methodNativeName(member),
|
|
'paramList': paramlistAsNative(member.params, member.realtype, notxpcom=member.notxpcom, empty='')})
|
|
fd.write('\n')
|
|
|
|
fd.write(iface_template_epilog)
|
|
|
|
if __name__ == '__main__':
|
|
from optparse import OptionParser
|
|
o = OptionParser()
|
|
o.add_option('-I', action='append', dest='incdirs', help="Directory to search for imported files", default=[])
|
|
o.add_option('--cachedir', dest='cachedir', help="Directory in which to cache lex/parse tables.", default='')
|
|
options, args = o.parse_args()
|
|
file, = args
|
|
|
|
if options.cachedir != '':
|
|
sys.path.append(options.cachedir)
|
|
|
|
p = xpidl.IDLParser(outputdir=options.cachedir)
|
|
idl = p.parse(open(file).read(), filename=file)
|
|
idl.resolve(options.incdirs, p)
|
|
print_header(idl, sys.stdout, file)
|