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#!/usr/bin/python
#
# Copyright (c) 2011 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
""" Generator for C style prototypes and definitions """
import glob
import os
import sys
import subprocess
from idl_log import ErrOut, InfoOut, WarnOut
from idl_node import IDLAttribute, IDLNode
from idl_ast import IDLAst
from idl_option import GetOption, Option, ParseOptions
from idl_outfile import IDLOutFile
from idl_parser import ParseFiles
from idl_c_proto import CGen
from idl_generator import Generator
Option('dstroot', 'Base directory of output', default='../c')
Option('guard', 'Include guard prefix', default='ppapi/c')
Option('out', 'List of output files', default='')
cgen = CGen()
def IDLToHeader(filenode, relpath=None, prefix=None):
path, name = os.path.split(filenode.GetProperty('NAME'))
name = os.path.splitext(name)[0] + '.h'
if prefix: name = '%s%s' % (prefix, name)
if path: name = os.path.join(path, name)
if relpath: name = os.path.join(relpath, name)
return name
def GenerateHeader(filenode, release, pref, inline=True):
name = filenode.GetProperty('NAME')
# if name == 'pp_stdint.idl': return
# If we have an 'out' filter list, then check if we should output this file.
outlist = GetOption('out')
if outlist:
outlist = outlist.split(',')
if name not in outlist:
return
savename = IDLToHeader(filenode, relpath=GetOption('dstroot'), prefix=pref)
out = IDLOutFile(savename)
gpath = GetOption('guard')
def_guard = IDLToHeader(filenode, relpath=gpath, prefix=pref)
def_guard = def_guard.replace('/','_').replace('.','_').upper() + '_'
cright_node = filenode.GetChildren()[0]
assert(cright_node.IsA('Copyright'))
fileinfo = filenode.GetChildren()[1]
assert(fileinfo.IsA('Comment'))
out.Write('%s\n' % cgen.Copyright(cright_node))
out.Write('/* From %s modified %s. */\n\n'% (
filenode.GetProperty('NAME'), filenode.GetProperty('DATETIME')))
out.Write('#ifndef %s\n#define %s\n\n' % (def_guard, def_guard))
for label in filenode.GetListOf('Label'):
if label.GetName() == GetOption('label'):
cgen.SetVersionMap(label)
deps = filenode.GetDeps(release)
# Generate set of includes
includes = set([])
for dep in deps:
depfile = dep.GetProperty('FILE')
if depfile:
includes.add(depfile)
includes = [IDLToHeader(include, relpath=gpath) for include in includes]
includes.append('ppapi/c/pp_macros.h')
# Assume we need stdint if we "include" C or C++ code
if filenode.GetListOf('Include'):
includes.append('ppapi/c/pp_stdint.h')
includes = sorted(set(includes))
cur_include = IDLToHeader(filenode, relpath=gpath)
for include in includes:
if include == cur_include: continue
out.Write('#include "%s"\n' % include)
# Generate all interface defines
out.Write('\n')
for node in filenode.GetListOf('Interface'):
out.Write( cgen.InterfaceDefs(node) )
# Generate the @file comment
out.Write('%s\n' % cgen.Comment(fileinfo, prefix='*\n @file'))
# Generate definitions.
last_group = None
for node in filenode.GetChildren()[2:]:
# If we are part of a group comment marker...
if last_group and last_group != node.cls:
pre = cgen.CommentLines(['*',' @}', '']) + '\n'
else:
pre = '\n'
if node.cls in ['Typedef', 'Interface', 'Struct', 'Enum']:
if last_group != node.cls:
pre += cgen.CommentLines(['*',' @addtogroup %ss' % node.cls, ' @{', ''])
last_group = node.cls
else:
last_group = None
if node.IsA('Comment'):
item = '%s\n\n' % cgen.Comment(node)
elif node.IsA('Inline'):
if not inline: continue
if node.GetName() == 'cc':
item = cgen.Define(node, prefix=pref, comment=True)
item = '#ifdef __cplusplus\n%s\n#endif // __cplusplus\n\n' % item
elif node.GetName() == 'c':
item = cgen.Define(node, prefix=pref, comment=True)
else:
continue
if not item: continue
else:
#
# Otherwise we are defining a file level object, so generate the
# correct document notation.
#
item = cgen.Define(node, prefix=pref, comment=True)
if not item: continue
asize = node.GetProperty('assert_size()')
if asize:
name = '%s%s' % (pref, node.GetName())
if node.IsA('Struct'):
form = 'PP_COMPILE_ASSERT_STRUCT_SIZE_IN_BYTES(%s, %s);\n'
else:
form = 'PP_COMPILE_ASSERT_SIZE_IN_BYTES(%s, %s);\n'
item += form % (name, asize[0])
if item: out.Write('%s%s' % (pre, item))
if last_group:
out.Write(cgen.CommentLines(['*',' @}', '']) + '\n')
out.Write('#endif /* %s */\n\n' % def_guard)
return out.Close()
class HGen(Generator):
def __init__(self):
Generator.__init__(self, 'C Header', 'cgen', 'Generate the C headers.')
def GenerateVersion(self, ast, release, options):
outdir = GetOption('dstroot')
skipList= []
prefix = ''
cfile = None
cnt = 0
for filenode in ast.GetListOf('File'):
if GetOption('verbose'):
print "Working on %s" % filenode
# If this file has errors, skip it
if filenode.GetProperty('ERRORS') > 0:
skipList.append(filenode)
continue
if GenerateHeader(filenode, release, prefix):
cnt = cnt + 1
for filenode in skipList:
errcnt = filenode.GetProperty('ERRORS')
ErrOut.Log('%s : Skipped because of %d errors.' % (
filenode.GetName(), errcnt))
if skipList:
return -len(skipList)
if GetOption('diff'):
return -cnt
return cnt
hgen = HGen()
def Main(args):
# Default invocation will verify the golden files are unchanged.
if not args:
args = ['--wnone', '--diff', '--test', '--dstroot=.']
ParseOptions(args)
idldir = os.path.split(sys.argv[0])[0]
idldir = os.path.join(idldir, 'test_cgen', '*.idl')
filenames = glob.glob(idldir)
ast = ParseFiles(filenames)
return hgen.GenerateVersion(ast, 'M14', {})
if __name__ == '__main__':
retval = Main(sys.argv[1:])
sys.exit(retval)
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