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# -*- Mode: Python -*-
# GObject-Introspection - a framework for introspecting GObject libraries
# Copyright (C) 2010 Red Hat, Inc.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
#
from StringIO import StringIO
from . import ast
from .codegen import CCodeGenerator
DEFAULT_C_VALUES = {ast.TYPE_ANY: 'NULL',
ast.TYPE_STRING: '""',
ast.TYPE_FILENAME: '""',
ast.TYPE_GTYPE: 'g_object_get_type ()'}
def get_default_for_typeval(typeval):
default = DEFAULT_C_VALUES.get(typeval)
if default:
return default
return "0"
def uscore_from_type(typeval):
if typeval.target_fundamental:
return typeval.target_fundamental.replace(' ', '_')
elif typeval.target_giname:
return typeval.target_giname.replace('.', '').lower()
else:
assert False, typeval
class EverythingCodeGenerator(object):
def __init__(self, out_h_filename, out_c_filename):
self.namespace = ast.Namespace('Everything', '1.0')
self.gen = CCodeGenerator(self.namespace, out_h_filename, out_c_filename)
def write(self):
func = ast.Function('nullfunc',
ast.Return(ast.TYPE_NONE, transfer=ast.PARAM_TRANSFER_NONE),
[], False, self.gen.gen_symbol('nullfunc'))
self.namespace.append(func)
body = " return;\n"
self.gen.set_function_body(func, body)
# First pass, generate constant returns
prefix = 'const return '
for typeval in ast.INTROSPECTABLE_BASIC:
name = prefix + uscore_from_type(typeval)
sym = self.gen.gen_symbol(name)
func = ast.Function(name,
ast.Return(typeval, transfer=ast.PARAM_TRANSFER_NONE),
[], False, sym)
self.namespace.append(func)
default = get_default_for_typeval(typeval)
body = " return %s;\n" % (default, )
self.gen.set_function_body(func, body)
# Void return, one parameter
prefix = 'oneparam '
for typeval in ast.INTROSPECTABLE_BASIC:
if typeval is ast.TYPE_NONE:
continue
name = prefix + uscore_from_type(typeval)
sym = self.gen.gen_symbol(name)
func = ast.Function(name,
ast.Return(ast.TYPE_NONE, transfer=ast.PARAM_TRANSFER_NONE),
[ast.Parameter('arg0', typeval, transfer=ast.PARAM_TRANSFER_NONE,
direction=ast.PARAM_DIRECTION_IN)], False, sym)
self.namespace.append(func)
self.gen.set_function_body(func, " return;\n")
# Void return, one (out) parameter
prefix = 'one_outparam '
for typeval in ast.INTROSPECTABLE_BASIC:
if typeval is ast.TYPE_NONE:
continue
name = prefix + uscore_from_type(typeval)
sym = self.gen.gen_symbol(name)
func = ast.Function(name,
ast.Return(ast.TYPE_NONE, transfer=ast.PARAM_TRANSFER_NONE),
[ast.Parameter('arg0', typeval, transfer=ast.PARAM_TRANSFER_NONE,
direction=ast.PARAM_DIRECTION_OUT)], False, sym)
self.namespace.append(func)
body = StringIO('w')
default = get_default_for_typeval(func.retval)
body.write(" *arg0 = %s;\n" % (default, ))
body.write(" return;\n")
self.gen.set_function_body(func, body.getvalue())
# Passthrough one parameter
prefix = 'passthrough_one '
for typeval in ast.INTROSPECTABLE_BASIC:
if typeval is ast.TYPE_NONE:
continue
name = prefix + uscore_from_type(typeval)
sym = self.gen.gen_symbol(name)
func = ast.Function(name, ast.Return(typeval, transfer=ast.PARAM_TRANSFER_NONE),
[ast.Parameter('arg0', typeval, transfer=ast.PARAM_TRANSFER_NONE,
direction=ast.PARAM_DIRECTION_IN)], False, sym)
self.namespace.append(func)
body = StringIO('w')
default = get_default_for_typeval(func.retval)
body.write(" return arg0;\n")
self.gen.set_function_body(func, body.getvalue())
self.gen.codegen()
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