author Margaret Leibovic <margaret.leibovic@gmail.com>
Fri, 30 Mar 2012 17:00:41 -0700
changeset 90755 8a38635a80bddb3c1d46be9cc308c0998c4a3562
parent 82890 3d74a7c6d71b3ccba3eb1eefd207088f3492e370
child 94475 f4157e8c410708d76703f19e4dfb61859bfe32d8
permissions -rw-r--r--
Bug 740306 - Back button does not dismiss the keyboard in awesomebar. r=mfinkle

 # ***** 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.
# Contributor(s):
#   Chris Jones <jones.chris.g@gmail.com>
# 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
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# 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 *****

__all__ = [ 'gencxx', 'genipdl', 'parse', 'typecheck', 'writeifmodified' ]

import os, sys
from cStringIO import StringIO

from ipdl.cgen import IPDLCodeGen
from ipdl.lower import LowerToCxx
from ipdl.parser import Parser
from ipdl.type import TypeCheck

from ipdl.cxx.cgen import CxxCodeGen

def parse(specstring, filename='/stdin', includedirs=[ ], errout=sys.stderr):
    '''Return an IPDL AST if parsing was successful.  Print errors to |errout|
    if it is not.'''
    return Parser().parse(specstring, os.path.abspath(filename), includedirs, errout)

def typecheck(ast, errout=sys.stderr):
    '''Return True iff |ast| is well typed.  Print errors to |errout| if
    it is not.'''
    return TypeCheck().check(ast, errout)

def gencxx(ipdlfilename, ast, outheadersdir, outcppdir):
    headers, cpps = LowerToCxx().lower(ast)

    def resolveHeader(hdr):
        return [
                *([ns.name for ns in ast.protocol.namespaces] + [hdr.name]))
    def resolveCpp(cpp):
        return [ cpp, os.path.join(outcppdir, cpp.name) ]

    for ast, filename in ([ resolveHeader(hdr) for hdr in headers ]
                          + [ resolveCpp(cpp) for cpp in cpps ]):
        tempfile = StringIO()
        writeifmodified(tempfile.getvalue(), filename)

def genipdl(ast, outdir):
    return IPDLCodeGen().cgen(ast)

def writeifmodified(contents, file):
    dir = os.path.dirname(file)
    os.path.exists(dir) or os.makedirs(dir)

    oldcontents = None
    if os.path.exists(file):
        fd = open(file, 'rb')
        oldcontents = fd.read()
    if oldcontents != contents:
        fd = open(file, 'wb')