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# -*- Mode: Python; py-indent-offset: 4 -*-
import sys
class Definition:
def __init__(self, *args):
"""Create a new defs object of this type. The arguments are the
components of the definition"""
raise RuntimeError, "this is an abstract class"
def merge(self, old):
"""Merge in customisations from older version of definition"""
raise RuntimeError, "this is an abstract class"
def write_defs(self, fp=sys.stdout):
"""write out this definition in defs file format"""
raise RuntimeError, "this is an abstract class"
class ObjectDef(Definition):
def __init__(self, name, *args):
self.name = name
self.module = None
self.parent = None
self.c_name = None
self.typecode = None
self.fields = []
self.implements = []
for arg in args:
if type(arg) != type(()) or len(arg) < 2:
continue
if arg[0] == 'in-module':
self.module = arg[1]
elif arg[0] == 'parent':
self.parent = arg[1]
elif arg[0] == 'c-name':
self.c_name = arg[1]
elif arg[0] == 'gtype-id':
self.typecode = arg[1]
elif arg[0] == 'fields':
for parg in arg[1:]:
self.fields.append((parg[0], parg[1]))
elif arg[0] == 'implements':
self.implements.append(arg[1])
def merge(self, old):
# currently the .h parser doesn't try to work out what fields of
# an object structure should be public, so we just copy the list
# from the old version ...
self.fields = old.fields
self.implements = old.implements
def write_defs(self, fp=sys.stdout):
fp.write('(define-object ' + self.name + '\n')
if self.module:
fp.write(' (in-module "' + self.module + '")\n')
if self.parent != (None, None):
fp.write(' (parent "' + self.parent + '")\n')
for interface in self.implements:
fp.write(' (implements "' + interface + '")\n')
if self.c_name:
fp.write(' (c-name "' + self.c_name + '")\n')
if self.typecode:
fp.write(' (gtype-id "' + self.typecode + '")\n')
if self.fields:
fp.write(' (fields\n')
for (ftype, fname) in self.fields:
fp.write(' \'("' + ftype + '" "' + fname + '")\n')
fp.write(' )\n')
fp.write(')\n\n')
class InterfaceDef(Definition):
def __init__(self, name, *args):
self.name = name
self.module = None
self.c_name = None
self.typecode = None
self.fields = []
for arg in args:
if type(arg) != type(()) or len(arg) < 2:
continue
if arg[0] == 'in-module':
self.module = arg[1]
elif arg[0] == 'c-name':
self.c_name = arg[1]
elif arg[0] == 'gtype-id':
self.typecode = arg[1]
def write_defs(self, fp=sys.stdout):
fp.write('(define-interface ' + self.name + '\n')
if self.module:
fp.write(' (in-module "' + self.module + '")\n')
if self.c_name:
fp.write(' (c-name "' + self.c_name + '")\n')
if self.typecode:
fp.write(' (gtype-id "' + self.typecode + '")\n')
fp.write(')\n\n')
class EnumDef(Definition):
def __init__(self, name, *args):
self.deftype = 'enum'
self.name = name
self.in_module = None
self.c_name = None
self.typecode = None
self.values = []
for arg in args:
if type(arg) != type(()) or len(arg) < 2:
continue
if arg[0] == 'in-module':
self.in_module = arg[1]
elif arg[0] == 'c-name':
self.c_name = arg[1]
elif arg[0] == 'gtype-id':
self.typecode = arg[1]
elif arg[0] == 'values':
for varg in arg[1:]:
self.values.append((varg[0], varg[1]))
def merge(self, old):
pass
def write_defs(self, fp=sys.stdout):
fp.write('(define-' + self.deftype + ' ' + self.name + '\n')
if self.in_module:
fp.write(' (in-module "' + self.in_module + '")\n')
fp.write(' (c-name "' + self.c_name + '")\n')
fp.write(' (gtype-id "' + self.typecode + '")\n')
if self.values:
fp.write(' (values\n')
for name, val in self.values:
fp.write(' \'("' + name + '" "' + val + '")\n')
fp.write(' )\n')
fp.write(')\n\n')
class FlagsDef(EnumDef):
def __init__(self, *args):
apply(EnumDef.__init__, (self,) + args)
self.deftype = 'flags'
class BoxedDef(Definition):
def __init__(self, name, *args):
self.name = name
self.module = None
self.c_name = None
self.typecode = None
self.copy = None
self.release = None
self.fields = []
for arg in args:
if type(arg) != type(()) or len(arg) < 2:
continue
if arg[0] == 'in-module':
self.module = arg[1]
elif arg[0] == 'c-name':
self.c_name = arg[1]
elif arg[0] == 'gtype-id':
self.typecode = arg[1]
elif arg[0] == 'copy-func':
self.copy = arg[1]
elif arg[0] == 'release-func':
self.release = arg[1]
elif arg[0] == 'fields':
for parg in arg[1:]:
self.fields.append((parg[0], parg[1]))
def merge(self, old):
# currently the .h parser doesn't try to work out what fields of
# an object structure should be public, so we just copy the list
# from the old version ...
self.fields = old.fields
def write_defs(self, fp=sys.stdout):
fp.write('(define-boxed ' + self.name + '\n')
if self.module:
fp.write(' (in-module "' + self.module + '")\n')
if self.c_name:
fp.write(' (c-name "' + self.c_name + '")\n')
if self.typecode:
fp.write(' (gtype-id "' + self.typecode + '")\n')
if self.copy:
fp.write(' (copy-func "' + self.copy + '")\n')
if self.release:
fp.write(' (release-func "' + self.release + '")\n')
if self.fields:
fp.write(' (fields\n')
for (ftype, fname) in self.fields:
fp.write(' \'("' + ftype + '" "' + fname + '")\n')
fp.write(' )\n')
fp.write(')\n\n')
class MethodDef(Definition):
def __init__(self, name, *args):
self.name = name
self.ret = None
self.c_name = None
self.typecode = None
self.of_object = None
self.params = [] # of form (type, name, default, nullok)
self.varargs = 0
for arg in args:
if type(arg) != type(()) or len(arg) < 2:
continue
if arg[0] == 'of-object':
self.of_object = arg[1]
elif arg[0] == 'c-name':
self.c_name = arg[1]
elif arg[0] == 'gtype-id':
self.typecode = arg[1]
elif arg[0] == 'return-type':
self.ret = arg[1]
elif arg[0] == 'parameters':
for parg in arg[1:]:
ptype = parg[0]
pname = parg[1]
pdflt = None
pnull = 0
for farg in parg[2:]:
if farg[0] == 'default':
pdflt = farg[1]
elif farg[0] == 'null-ok':
pnull = 1
self.params.append((ptype, pname, pdflt, pnull))
elif arg[0] == 'varargs':
self.varargs = arg[1] in ('t', '#t')
def merge(self, old):
# here we merge extra parameter flags accross to the new object.
for i in range(len(self.params)):
ptype, pname, pdflt, pnull = self.params[i]
for p2 in old.params:
if p2[1] == pname:
self.params[i] = (ptype, pname, p2[2], p2[3])
break
def write_defs(self, fp=sys.stdout):
fp.write('(define-method ' + self.name + '\n')
if self.of_object != (None, None):
fp.write(' (of-object "' + self.of_object + '")\n')
if self.c_name:
fp.write(' (c-name "' + self.c_name + '")\n')
if self.typecode:
fp.write(' (gtype-id "' + self.typecode + '")\n')
if self.ret:
fp.write(' (return-type "' + self.ret + '")\n')
if self.params:
fp.write(' (parameters\n')
for ptype, pname, pdflt, pnull in self.params:
fp.write(' \'("' + ptype + '" "' + pname +'"')
if pdflt: fp.write(' (default "' + pdflt + '")')
if pnull: fp.write(' (null-ok)')
fp.write(')\n')
fp.write(' )\n')
fp.write(')\n\n')
class FunctionDef(Definition):
def __init__(self, name, *args):
self.name = name
self.in_module = None
self.is_constructor_of = None
self.ret = None
self.c_name = None
self.typecode = None
self.params = [] # of form (type, name, default, nullok)
self.varargs = 0
for arg in args:
if type(arg) != type(()) or len(arg) < 2:
continue
if arg[0] == 'in-module':
self.in_module = arg[1]
elif arg[0] == 'is-constructor-of':
self.is_constructor_of = arg[1]
elif arg[0] == 'c-name':
self.c_name = arg[1]
elif arg[0] == 'gtype-id':
self.typecode = arg[1]
elif arg[0] == 'return-type':
self.ret = arg[1]
elif arg[0] == 'parameters':
for parg in arg[1:]:
ptype = parg[0]
pname = parg[1]
pdflt = None
pnull = 0
for farg in parg[2:]:
if farg[0] == 'default':
pdflt = farg[1]
elif farg[0] == 'null-ok':
pnull = 1
self.params.append((ptype, pname, pdflt, pnull))
elif arg[0] == 'varargs':
self.varargs = arg[1] in ('t', '#t')
_method_write_defs = MethodDef.__dict__['write_defs']
def merge(self, old):
# here we merge extra parameter flags accross to the new object.
for i in range(len(self.params)):
ptype, pname, pdflt, pnull = self.params[i]
for p2 in old.params:
if p2[1] == pname:
self.params[i] = (ptype, pname, p2[2], p2[3])
break
if not self.is_constructor_of:
self.is_constructor_of = old.is_constructor_of
if isinstance(old, MethodDef):
self.name = old.name
# transmogrify from function into method ...
self.write_defs = self._method_write_defs
self.of_object = old.of_object
del self.params[0]
def write_defs(self, fp=sys.stdout):
fp.write('(define-function ' + self.name + '\n')
if self.in_module:
fp.write(' (in-module "' + self.in_module + '")\n')
if self.is_constructor_of:
fp.write(' (is-constructor-of "' + self.is_constructor_of +'")\n')
if self.c_name:
fp.write(' (c-name "' + self.c_name + '")\n')
if self.typecode:
fp.write(' (gtype-id "' + self.typecode + '")\n')
if self.ret:
fp.write(' (return-type "' + self.ret + '")\n')
if self.params:
fp.write(' (parameters\n')
for ptype, pname, pdflt, pnull in self.params:
fp.write(' \'("' + ptype + '" "' + pname +'"')
if pdflt: fp.write(' (default "' + pdflt + '")')
if pnull: fp.write(' (null-ok)')
fp.write(')\n')
fp.write(' )\n')
fp.write(')\n\n')
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