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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
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, 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() + '_'
copyright = filenode.GetChildren()[0]
assert(copyright.IsA('Copyright'))
fileinfo = filenode.GetChildren()[1]
assert(fileinfo.IsA('Comment'))
out.Write('%s\n' % cgen.Copyright(copyright))
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('M14')
# 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 the @file comment
out.Write('\n%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)
out.Close()
def GenerateFileTest(cfile, filenode, pref):
tests = []
original = IDLToHeader(filenode, relpath='')
savename = IDLToHeader(filenode, relpath='', prefix=pref)
cfile.Write('/* Test %s */\n' % filenode.GetProperty('NAME'))
cfile.Write('#include "%s"\n' % original)
cfile.Write('#include "%s"\n' % savename)
# For all children (excluding copyright notice)
for node in filenode.children[1:]:
# Test enums by assigning all enum items to themselves. Unfortunately this
# will not catch cases where the '.h' has enums that the IDL does not.
if node.IsA('Enum'):
tests.append('test_%s' % node.GetProperty('NAME'))
cfile.Write('int test_%s() {\n' % node.GetProperty('NAME'))
cfile.Write(' int errors = 0;\n')
for enum in node.GetListOf('EnumItem'):
cfile.Write(' errors += VERIFY_ENUM(%s, %s%s);\n' %
(enum.GetProperty('NAME'), pref, enum.GetProperty('NAME')))
cfile.Write(' if (errors) printf("Failure in %s:%s.\\n");\n' %
(filenode.GetName(), node.GetName()))
cfile.Write(' return errors;\n}\n\n')
continue
# Use a structure asignment to verify equivilency
if node.IsA('Interface', 'Struct'):
tests.append('test_%s' % node.GetName())
rtype1 = cgen.GetTypeName(node)
rtype2 = cgen.GetTypeName(node, prefix='tst_')
cfile.Write('int test_%s() {\n' % node.GetName())
cfile.Write(' int errors = 0;\n');
cmp_structs = ' %s A;\n %s B;\n' % (rtype1, rtype2)
cfile.Write(cmp_structs)
cfile.Write(' memset(&A, 0, sizeof(A));\n')
cfile.Write(' memset(&B, 1, sizeof(B));\n')
for member in node.GetListOf('Member', 'Function'):
if member.GetOneOf('Array'):
cfile.Write(' memcpy(A.%s, B.%s, sizeof(A.%s));\n' %
(member.GetName(), member.GetName(), member.GetName()))
else:
cfile.Write(' A.%s = B.%s;\n' % (member.GetName(), member.GetName()))
cfile.Write(' errors += (sizeof(A) != sizeof(B)) ? 1 : 0;\n')
cfile.Write(' errors += (memcmp(&A, &B, sizeof(A))) ? 1 : 0;\n')
cfile.Write(' return (sizeof(A) == sizeof(B));\n}\n')
continue
cfile.Write('\n\n')
return tests
def GenerateBaseTest(cfile):
for inc in ['<stdio.h>','<string.h>','"pp_stdint.h"']:
cfile.Write('#include %s\n' % inc)
cfile.Write('\n')
cfile.Write('#define VERIFY_ENUM(orig, idl) Check(#orig, orig, idl)\n\n')
cfile.Write('int Check(const char *name, int v1, int v2) {\n')
cfile.Write(' if (v1 == v2) return 0;\n')
cfile.Write(' printf("Mismatch enum %s : %d vs %d\\n", name, v1, v2);\n')
cfile.Write(' return 1;\n}\n\n')
def Main(args):
filenames = ParseOptions(args)
ast = ParseFiles(filenames)
testFuncs = []
skipList = []
outdir = GetOption('dstroot')
if GetOption('test'):
prefix = 'tst_'
cfile = IDLOutFile(os.path.join(outdir, 'test.c'))
GenerateBaseTest(cfile)
else:
prefix = ''
cfile = None
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
GenerateHeader(filenode, prefix, inline=not cfile)
if cfile: GenerateFileTest(cfile, filenode, prefix)
if cfile:
cfile.Write('int main(int argc, const char *args[]) {\n')
cfile.Write(' int errors = 0;\n');
for testname in testFuncs:
cfile.Write(' errors += %s();\n' % testname)
cfile.Write(' printf("Found %d error(s) in the IDL.\\n", errors);\n')
cfile.Write(' return errors;\n}\n\n')
cfile.Close()
# TODO(noelallen) Add a standard test
if not skipList:
args = ['gcc', '-o', 'tester', '%s/test.c' % outdir, '-I%s' % outdir,
'-I../c', '-I../..', '-DPPAPI_INSTANCE_REMOVE_SCRIPTING']
InfoOut.Log('Running: %s' % ' '.join(args))
ret = subprocess.call(args)
if ret:
ErrOut.Log('Failed to compile.')
return -1
InfoOut.Log('Running: ./tester')
ret = subprocess.call('./tester')
if ret > 0:
ErrOut.Log('Found %d errors.' % ret)
return ret
InfoOut.Log('Success!')
return 0
for filenode in skipList:
errcnt = filenode.GetProperty('ERRORS')
ErrOut.Log('%s : Skipped because of %d errors.' % (
filenode.GetName(), errcnt))
if not skipList:
InfoOut.Log('Processed %d files.' % len(ast.GetListOf('File')))
return len(skipList)
if __name__ == '__main__':
sys.exit(Main(sys.argv[1:]))
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