/usr/share/pyshared/Pyrex/Compiler/ModuleNode.py is in python-pyrex 0.9.8.5-2.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Pyrex - Module parse tree node
#
import os, time
from cStringIO import StringIO
from PyrexTypes import CPtrType, py_object_type, typecast
from Pyrex.Utils import set
# Following is set by Testing.py to suppress filename/date comments
# in generated files, so as not to produce spurious changes in test
# reference files.
testing_mode = False
import Code
import Naming
import Nodes
import Options
import PyrexTypes
import TypeSlots
import Version
from Errors import error
from PyrexTypes import py_object_type
from Pyrex.Utils import open_new_file, replace_suffix
class ModuleNode(Nodes.Node, Nodes.BlockNode):
# doc string or None
# body StatListNode
#
# referenced_modules [ModuleScope]
# module_temp_cname string
def analyse_declarations(self, env):
env.doc = self.doc
self.body.analyse_declarations(env)
def process_implementation(self, env, options, result):
self.analyse_declarations(env)
env.check_c_classes()
self.body.analyse_expressions(env)
env.return_type = PyrexTypes.c_void_type
self.referenced_modules = self.find_referenced_modules(env)
if self.has_imported_c_functions():
self.module_temp_cname = env.allocate_temp_pyobject()
env.release_temp(self.module_temp_cname)
if options.timestamps or options.recursive:
self.generate_dep_file(env, result)
self.generate_c_code(env, result)
self.generate_h_code(env, options, result)
self.generate_api_code(env, result)
def has_imported_c_functions(self):
for module in self.referenced_modules:
for entry in module.cfunc_entries:
if entry.defined_in_pxd:
return 1
return 0
def generate_dep_file(self, env, result):
modules = self.referenced_modules
includes = set(env.pyrex_include_files)
for module in modules:
for include in module.pyrex_include_files:
includes.add(include)
if len(modules) > 1 or includes:
include_list = list(includes)
include_list.sort()
dep_file = replace_suffix(result.c_file, ".dep")
f = open(dep_file, "w")
try:
for module in modules[:-1]:
f.write("cimport %s\n" % module.qualified_name)
for path in include_list:
f.write("include %s\n" % path)
finally:
f.close()
def generate_h_code(self, env, options, result):
def pub(entries): #, pxd = 0):
return [entry for entry in entries
if entry.visibility == 'public'] # or pxd and entry.defined_in_pxd]
denv = env.definition_scope
h_types = pub(denv.type_entries) + pub(env.type_entries)
h_vars = pub(denv.var_entries) + pub(env.var_entries)
h_funcs = pub(denv.cfunc_entries) + pub(env.cfunc_entries)
h_extension_types = pub(denv.c_class_entries) + pub(env.c_class_entries)
if h_types or h_vars or h_funcs or h_extension_types:
result.h_file = replace_suffix(result.c_file, ".h")
h_code = Code.CCodeWriter(open_new_file(result.h_file))
if options.generate_pxi:
result.i_file = replace_suffix(result.c_file, ".pxi")
i_code = Code.PyrexCodeWriter(result.i_file)
else:
i_code = None
guard = Naming.h_guard_prefix + env.qualified_name.replace(".", "__")
h_code.put_h_guard(guard)
self.generate_extern_c_macro_definition(h_code)
self.generate_type_header_code(h_types, h_code)
h_code.putln("")
h_code.putln("#ifndef %s" % Naming.api_guard_prefix + self.api_name(env))
if h_vars:
h_code.putln("")
for entry in h_vars:
self.generate_public_declaration(entry, h_code, i_code)
if h_funcs:
h_code.putln("")
for entry in h_funcs:
self.generate_public_declaration(entry, h_code, i_code)
if h_extension_types:
h_code.putln("")
for entry in h_extension_types:
self.generate_cclass_header_code(entry.type, h_code)
if i_code:
self.generate_cclass_include_code(entry.type, i_code)
h_code.putln("")
h_code.putln("#endif")
h_code.putln("")
h_code.putln("PyMODINIT_FUNC init%s(void);" % env.module_name)
h_code.putln("")
h_code.putln("#endif")
def generate_public_declaration(self, entry, h_code, i_code):
h_code.putln("%s %s;" % (
Naming.extern_c_macro,
entry.type.declaration_code(
entry.cname, dll_linkage = "DL_IMPORT")))
if i_code:
i_code.putln("cdef extern %s" %
entry.type.declaration_code(entry.cname, pyrex = 1))
def api_name(self, env):
return env.qualified_name.replace(".", "__")
def generate_api_code(self, env, result):
denv = env.definition_scope
api_funcs = []
public_extension_types = []
has_api_extension_types = 0
for entry in denv.cfunc_entries:
if entry.api:
api_funcs.append(entry)
for entry in env.cfunc_entries:
if entry.api:
api_funcs.append(entry)
for entry in denv.c_class_entries + env.c_class_entries:
if entry.visibility == 'public':
public_extension_types.append(entry)
if entry.api:
has_api_extension_types = 1
if api_funcs or has_api_extension_types:
result.api_file = replace_suffix(result.c_file, "_api.h")
h_code = Code.CCodeWriter(open_new_file(result.api_file))
name = self.api_name(env)
guard = Naming.api_guard_prefix + name
h_code.put_h_guard(guard)
h_code.putln('#include "Python.h"')
if result.h_file:
h_code.putln('#include "%s"' % os.path.basename(result.h_file))
for entry in public_extension_types:
type = entry.type
h_code.putln("")
h_code.putln("static PyTypeObject *%s;" % type.typeptr_cname)
h_code.putln("#define %s (*%s)" % (
type.typeobj_cname, type.typeptr_cname))
if api_funcs:
h_code.putln("")
for entry in api_funcs:
type = CPtrType(entry.type)
h_code.putln("static %s;" % type.declaration_code(entry.cname))
h_code.putln("")
h_code.put_h_guard(Naming.api_func_guard + "import_module")
h_code.put(import_module_utility_code[1])
h_code.putln("")
h_code.putln("#endif")
if api_funcs:
h_code.putln("")
h_code.put(function_import_utility_code[1])
if public_extension_types:
h_code.putln("")
h_code.put(type_import_utility_code[1])
h_code.putln("")
h_code.putln("static int import_%s(void) {" % name)
h_code.putln("PyObject *module = 0;")
h_code.putln('module = __Pyx_ImportModule("%s");' % env.qualified_name)
h_code.putln("if (!module) goto bad;")
for entry in api_funcs:
sig = entry.type.signature_string()
h_code.putln(
'if (__Pyx_ImportFunction(module, "%s", (void**)&%s, "%s") < 0) goto bad;' % (
entry.name,
entry.cname,
sig))
h_code.putln("Py_DECREF(module); module = 0;")
for entry in public_extension_types:
self.generate_type_import_call(entry.type, h_code, "goto bad;")
h_code.putln("return 0;")
h_code.putln("bad:")
h_code.putln("Py_XDECREF(module);")
h_code.putln("return -1;")
h_code.putln("}")
h_code.putln("")
h_code.putln("#endif")
def generate_cclass_header_code(self, type, h_code):
h_code.putln("%s DL_IMPORT(PyTypeObject) %s;" % (
Naming.extern_c_macro,
type.typeobj_cname))
#self.generate_obj_struct_definition(type, h_code)
def generate_cclass_include_code(self, type, i_code):
i_code.putln("cdef extern class %s.%s:" % (
type.module_name, type.name))
i_code.indent()
var_entries = type.scope.var_entries
if var_entries:
for entry in var_entries:
i_code.putln("cdef %s" %
entry.type.declaration_code(entry.cname, pyrex = 1))
else:
i_code.putln("pass")
i_code.dedent()
def generate_c_code(self, env, result):
code = Code.MainCCodeWriter(StringIO())
code.h = Code.CCodeWriter(StringIO())
code.init_labels()
modules = self.referenced_modules
self.generate_module_preamble(env, modules, code.h)
code.putln("")
code.putln("/* Implementation of %s */" % env.qualified_name)
#self.generate_const_definitions(env, code)
#self.generate_interned_name_decls(env, code)
#self.generate_py_string_decls(env, code)
self.body.generate_function_definitions(env, code)
#self.generate_interned_name_table(env, code)
#self.generate_py_string_table(env, code)
self.generate_typeobj_definitions(env, code)
self.generate_method_table(env, code)
self.generate_filename_init_prototype(code)
self.generate_module_init_func(modules[:-1], env, code)
self.generate_filename_table(code)
self.generate_utility_functions(code)
denv = env.definition_scope
for module in modules:
code.h.putln("")
code.h.putln("/* Declarations from %s */" % module.qualified_name)
self.generate_declarations_for_module(module, code.h,
implementation = module is denv)
code.h.putln("")
code.h.putln("/* Declarations from implementation of %s */" %
env.qualified_name)
self.generate_declarations_for_module(env, code.h, implementation = 1)
code.global_state.generate_const_declarations(code.h)
#self.generate_interned_name_table(code.interned_strings, code.h)
#self.generate_py_string_table(code.py_strings, code.h)
self.generate_default_value_declarations(env, code.h)
f = open_new_file(result.c_file)
f.write(code.h.f.getvalue())
f.write("\n")
f.write(code.f.getvalue())
f.close()
result.c_file_generated = 1
def find_referenced_modules(self, env):
# Given the ImplementationScope, find the DefinitionScopes of all
# modules cimported, directly or indirectly. Includes this module's
# DefinitionScope as the last entry in the list.
denv = env.definition_scope
module_list = []
modules_seen = set()
def add_module(module):
if module not in modules_seen:
modules_seen.add(module)
add_modules(module.cimported_modules)
module_list.append(module)
def add_modules(modules):
for module in modules:
add_module(module)
modules_seen.add(denv)
add_modules(denv.cimported_modules)
add_modules(env.cimported_modules)
module_list.append(denv)
#self.print_referenced_modules(module_list) ###
return module_list
def print_referenced_modules(self, module_list):
print "find_referenced_modules: result =",
for m in module_list:
print m,
print
def generate_module_preamble(self, env, cimported_modules, code):
comment = "Generated by Pyrex"
if not testing_mode:
comment = "%s %s on %s" % (comment, Version.version, time.asctime())
code.putln('/* %s */' % comment)
code.putln('')
code.putln('#define PY_SSIZE_T_CLEAN')
for filename in env.python_include_files:
code.putln('#include "%s"' % filename)
code.putln("#ifndef PY_LONG_LONG")
code.putln(" #define PY_LONG_LONG LONG_LONG")
code.putln("#endif")
code.putln("#if PY_VERSION_HEX < 0x02050000")
code.putln(" typedef int Py_ssize_t;")
code.putln(" #define PY_SSIZE_T_MAX INT_MAX")
code.putln(" #define PY_SSIZE_T_MIN INT_MIN")
code.putln(" #define PyInt_FromSsize_t(z) PyInt_FromLong(z)")
code.putln(" #define PyInt_AsSsize_t(o) PyInt_AsLong(o)")
code.putln("#endif")
code.putln("#if !defined(WIN32) && !defined(MS_WINDOWS)")
code.putln(" #ifndef __stdcall")
code.putln(" #define __stdcall")
code.putln(" #endif")
code.putln(" #ifndef __cdecl")
code.putln(" #define __cdecl")
code.putln(" #endif")
code.putln("#endif")
self.generate_extern_c_macro_definition(code)
code.putln("#include <math.h>")
self.generate_includes(env, cimported_modules, code)
code.putln('')
code.put(Nodes.utility_function_predeclarations)
code.putln('')
code.putln('static PyObject *%s;' % env.module_cname)
code.putln('static PyObject *%s;' % Naming.builtins_cname)
code.putln('static int %s;' % Naming.lineno_cname)
code.putln('static char *%s;' % Naming.filename_cname)
code.putln('static char **%s;' % Naming.filetable_cname)
doc = None
doc1 = env.definition_scope.doc
doc2 = env.doc
if doc1 and doc2:
doc = "%s\\n%s" % (doc1, doc2)
else:
doc = doc1 or doc2
if doc:
code.putln('')
code.putln('static char %s[] = "%s";' % (env.doc_cname, doc))
def generate_extern_c_macro_definition(self, code):
name = Naming.extern_c_macro
code.putln("#ifdef __cplusplus")
code.putln('#define %s extern "C"' % name)
code.putln("#else")
code.putln("#define %s extern" % name)
code.putln("#endif")
def generate_includes(self, env, cimported_modules, code):
includes = env.include_files[:]
for module in cimported_modules:
for filename in module.include_files:
if filename not in includes:
includes.append(filename)
for filename in includes:
code.putln('#include "%s"' % filename)
def generate_filename_table(self, code):
code.global_state.generate_filename_table(code)
def generate_declarations_for_module(self, env, code, implementation):
self.generate_type_predeclarations(env, code)
self.generate_type_definitions(env, code) #, implementation)
self.generate_global_declarations(env, code, implementation)
self.generate_cfunction_predeclarations(env, code, implementation)
def generate_type_predeclarations(self, env, code):
pass
def generate_type_header_code(self, type_entries, code):
# Generate definitions of structs/unions/enums/typedefs/objstructs.
#self.generate_gcc33_hack(env, code) # Is this still needed?
#for entry in env.type_entries:
for entry in type_entries:
if not entry.in_cinclude:
#print "generate_type_header_code:", entry.name, repr(entry.type) ###
type = entry.type
if type.is_typedef: # Must test this first!
self.generate_typedef(entry, code)
elif type.is_struct_or_union:
self.generate_struct_union_definition(entry, code)
elif type.is_enum:
self.generate_enum_definition(entry, code)
elif type.is_extension_type:
self.generate_obj_struct_definition(type, code)
def generate_type_definitions(self, env, code): #, implementation):
#print "generate_type_definitions:", env ###
type_entries = env.type_entries
self.generate_type_header_code(type_entries, code)
for entry in env.c_class_entries:
if not entry.in_cinclude:
self.generate_typeobject_predeclaration(entry, code)
self.generate_exttype_vtable_struct(entry, code)
self.generate_exttype_vtabptr_declaration(entry, code)
# def generate_gcc33_hack(self, env, code):
# # Workaround for spurious warning generation in gcc 3.3
# if 0:
# code.putln("")
# for entry in env.c_class_entries:
# type = entry.type
# if not type.typedef_flag:
# name = type.objstruct_cname
# if name.startswith("__pyx_"):
# tail = name[6:]
# else:
# tail = name
# code.putln("typedef struct %s __pyx_gcc33_%s;" % (
# name, tail))
def generate_typedef(self, entry, code):
base_type = entry.type.typedef_base_type
code.putln("")
code.putln("typedef %s;" % base_type.declaration_code(entry.cname))
def sue_header_footer(self, type, kind, name):
if type.typedef_flag:
header = "typedef %s {" % kind
footer = "} %s;" % name
else:
header = "%s %s {" % (kind, name)
footer = "};"
return header, footer
def generate_struct_union_definition(self, entry, code):
type = entry.type
scope = type.scope
if scope:
header, footer = \
self.sue_header_footer(type, type.kind, type.cname)
code.putln("")
code.putln(header)
var_entries = scope.var_entries
if not var_entries and not scope.cfunc_entries:
error(entry.pos,
"Empty struct or union definition not allowed outside a"
" 'cdef extern from' block")
for attr in var_entries:
code.putln(
"%s;" %
attr.type.declaration_code(attr.cname))
code.putln(footer)
def generate_enum_definition(self, entry, code):
type = entry.type
name = entry.cname or entry.name or ""
header, footer = \
self.sue_header_footer(type, "enum", name)
code.putln("")
code.putln(header)
enum_values = entry.enum_values
if not enum_values:
error(entry.pos,
"Empty enum definition not allowed outside a"
" 'cdef extern from' block")
else:
last_entry = enum_values[-1]
for value_entry in enum_values:
if value_entry.value == value_entry.name:
value_code = value_entry.cname
else:
value_code = ("%s = %s" % (
value_entry.cname,
value_entry.value))
if value_entry is not last_entry:
value_code += ","
code.putln(value_code)
code.putln(footer)
def generate_typeobject_predeclaration(self, entry, code):
code.putln("")
name = entry.type.typeobj_cname
if name:
if entry.visibility == 'extern' and not entry.in_cinclude:
code.putln("%s DL_IMPORT(PyTypeObject) %s;" % (
Naming.extern_c_macro,
name))
elif entry.visibility == 'public':
#code.putln("DL_EXPORT(PyTypeObject) %s;" % name)
code.putln("%s DL_EXPORT(PyTypeObject) %s;" % (
Naming.extern_c_macro,
name))
def generate_exttype_vtable_struct(self, entry, code):
# Generate struct declaration for an extension type's vtable.
type = entry.type
scope = type.scope
if type.vtabstruct_cname:
code.putln("")
code.putln(
"struct %s {" %
type.vtabstruct_cname)
if type.base_type and type.base_type.vtabstruct_cname:
code.putln("struct %s %s;" % (
type.base_type.vtabstruct_cname,
Naming.obj_base_cname))
for method_entry in scope.cfunc_entries:
if not method_entry.is_inherited:
code.putln(
"%s;" % method_entry.type.declaration_code("(*%s)" % method_entry.name))
code.putln(
"};")
def generate_exttype_vtabptr_declaration(self, entry, code):
# Generate declaration of pointer to an extension type's vtable.
type = entry.type
if type.vtabptr_cname:
code.putln("static struct %s *%s;" % (
type.vtabstruct_cname,
type.vtabptr_cname))
def generate_obj_struct_definition(self, type, code):
# Generate object struct definition for an
# extension type.
if not type.scope:
return # Forward declared but never defined
header, footer = \
self.sue_header_footer(type, "struct", type.objstruct_cname)
code.putln("")
code.putln(header)
base_type = type.base_type
if base_type:
code.putln(
"%s%s %s;" % (
("struct ", "")[base_type.typedef_flag],
base_type.objstruct_cname,
Naming.obj_base_cname))
else:
code.putln(
"PyObject_HEAD")
if type.vtabslot_cname and not (type.base_type and type.base_type.vtabslot_cname):
code.putln(
"struct %s *%s;" % (
type.vtabstruct_cname,
type.vtabslot_cname))
for attr in type.scope.var_entries:
code.putln(
"%s;" %
attr.type.declaration_code(attr.cname))
code.putln(footer)
def generate_global_declarations(self, env, code, implementation):
code.putln("")
for entry in env.c_class_entries:
if implementation or entry.defined_in_pxd:
code.putln("static PyTypeObject *%s = 0;" %
entry.type.typeptr_cname)
#code.putln("/* var_entries */") ###
code.put_var_declarations(env.var_entries, static = 1,
dll_linkage = "DL_EXPORT", definition = implementation)
def generate_default_value_declarations(self, env, code):
#code.putln("/* default_entries */") ###
code.putln("")
code.put_var_declarations(env.default_entries, static = 1)
def generate_cfunction_predeclarations(self, env, code, implementation):
for entry in env.cfunc_entries:
if not entry.in_cinclude:
# and (definition or entry.defined_in_pxd or
# entry.visibility == 'extern'):
if entry.visibility in ('public', 'extern'):
dll_linkage = "DL_EXPORT"
else:
dll_linkage = None
type = entry.type
if not implementation: #and entry.defined_in_pxd:
type = CPtrType(type)
header = type.declaration_code(entry.cname,
dll_linkage = dll_linkage)
if entry.visibility <> 'private':
storage_class = "%s " % Naming.extern_c_macro
else:
storage_class = "static "
code.putln("%s%s; /*proto*/" % (
storage_class,
header))
def generate_typeobj_definitions(self, env, code):
full_module_name = env.qualified_name
denv = env.definition_scope
for entry in denv.c_class_entries + env.c_class_entries:
#print "generate_typeobj_definitions:", entry.name
#print "...visibility =", entry.visibility
if entry.visibility <> 'extern':
type = entry.type
scope = type.scope
if scope: # could be None if there was an error
self.generate_exttype_vtable(scope, code)
self.generate_new_function(scope, code)
self.generate_dealloc_function(scope, code)
self.generate_traverse_function(scope, code)
self.generate_clear_function(scope, code)
if scope.defines_any(["__getitem__"]):
self.generate_getitem_int_function(scope, code)
if scope.defines_any(["__setitem__", "__delitem__"]):
self.generate_ass_subscript_function(scope, code)
if scope.defines_any(["__setslice__", "__delslice__"]):
self.generate_ass_slice_function(scope, code)
if scope.defines_any(["__getattr__"]):
self.generate_getattro_function(scope, code)
if scope.defines_any(["__setattr__", "__delattr__"]):
self.generate_setattro_function(scope, code)
if scope.defines_any(["__get__"]):
self.generate_descr_get_function(scope, code)
if scope.defines_any(["__set__", "__delete__"]):
self.generate_descr_set_function(scope, code)
self.generate_property_accessors(scope, code)
self.generate_method_table(scope, code)
self.generate_member_table(scope, code)
self.generate_getset_table(scope, code)
self.generate_typeobj_definition(full_module_name, entry, code)
def generate_exttype_vtable(self, scope, code):
# Generate the definition of an extension type's vtable.
type = scope.parent_type
if type.vtable_cname:
code.putln("static struct %s %s;" % (
type.vtabstruct_cname,
type.vtable_cname))
def generate_self_cast(self, scope, code):
type = scope.parent_type
code.putln(
"%s = (%s)o;" % (
type.declaration_code("p"),
type.declaration_code("")))
def generate_new_function(self, scope, code):
type = scope.parent_type
base_type = type.base_type
py_attrs = []
for entry in scope.var_entries:
if entry.type.is_pyobject:
py_attrs.append(entry)
need_self_cast = type.vtabslot_cname or py_attrs
code.putln("")
code.putln(
"static PyObject *%s(PyTypeObject *t, PyObject *a, PyObject *k) {"
% scope.mangle_internal("tp_new"))
if need_self_cast:
code.putln(
"%s;"
% scope.parent_type.declaration_code("p"))
if base_type:
code.putln(
"PyObject *o = %s->tp_new(t, a, k);" %
base_type.typeptr_cname)
else:
code.putln(
"PyObject *o = (*t->tp_alloc)(t, 0);")
code.putln(
"if (!o) return 0;")
if need_self_cast:
code.putln(
"p = %s;"
% type.cast_code("o"))
#if need_self_cast:
# self.generate_self_cast(scope, code)
if type.vtabslot_cname:
code.putln("*(struct %s **)&p->%s = %s;" % (
type.vtabstruct_cname,
type.vtabslot_cname,
type.vtabptr_cname))
for entry in py_attrs:
if entry.name == "__weakref__":
code.putln("p->%s = 0;" % entry.cname)
else:
code.put_init_var_to_py_none(entry, "p->%s")
entry = scope.lookup_here("__new__")
if entry:
code.putln(
"if (%s(o, a, k) < 0) {" %
entry.func_cname)
code.put_decref_clear("o", py_object_type);
code.putln(
"}")
code.putln(
"return o;")
code.putln(
"}")
def generate_dealloc_function(self, scope, code):
base_type = scope.parent_type.base_type
code.putln("")
code.putln(
"static void %s(PyObject *o) {"
% scope.mangle_internal("tp_dealloc"))
#py_attrs = []
#for entry in scope.var_entries:
# if entry.type.is_pyobject and entry.name <> "__weakref__":
# py_attrs.append(entry)
py_attrs = scope.pyattr_entries
if py_attrs:
self.generate_self_cast(scope, code)
self.generate_usr_dealloc_call(scope, code)
if scope.lookup_here("__weakref__"):
code.putln("PyObject_ClearWeakRefs(o);")
for entry in py_attrs:
code.put_xdecref("p->%s" % entry.cname, entry.type)
if base_type:
code.putln(
"%s->tp_dealloc(o);" %
base_type.typeptr_cname)
else:
code.putln(
"(*o->ob_type->tp_free)(o);")
code.putln(
"}")
def generate_usr_dealloc_call(self, scope, code):
entry = scope.lookup_here("__dealloc__")
if entry:
code.putln(
"{")
code.putln(
"PyObject *etype, *eval, *etb;")
code.putln(
"PyErr_Fetch(&etype, &eval, &etb);")
code.putln(
"++o->ob_refcnt;")
code.putln(
"%s(o);" %
entry.func_cname)
code.putln(
"if (PyErr_Occurred()) PyErr_WriteUnraisable(o);")
code.putln(
"--o->ob_refcnt;")
code.putln(
"PyErr_Restore(etype, eval, etb);")
code.putln(
"}")
def generate_traverse_function(self, scope, code):
py_attrs = scope.pyattr_entries
if py_attrs:
base_type = scope.parent_type.base_type
code.putln("")
code.putln(
"static int %s(PyObject *o, visitproc v, void *a) {"
% scope.mangle_internal("tp_traverse"))
code.putln(
"int e;")
self.generate_self_cast(scope, code)
if base_type:
code.putln(
"traverseproc t;")
code.putln(
"if ((t = %s->tp_traverse)) {" %
base_type.typeptr_cname)
code.putln(
"e = t(o, v, a); if (e) return e;")
code.putln(
"}")
for entry in py_attrs:
var_code = "p->%s" % entry.cname
code.putln(
"if (%s) {"
% var_code)
if entry.type.is_extension_type:
var_code = "((PyObject*)%s)" % var_code
code.putln(
"e = (*v)(%s, a); if (e) return e;"
% var_code)
code.putln(
"}")
code.putln(
"return 0;")
code.putln(
"}")
def generate_clear_function(self, scope, code):
py_attrs = scope.pyattr_entries
if py_attrs:
base_type = scope.parent_type.base_type
code.putln("")
code.putln(
"static int %s(PyObject *o) {"
% scope.mangle_internal("tp_clear"))
self.generate_self_cast(scope, code)
code.putln(
"PyObject *t;")
if base_type:
code.putln(
"inquiry c;")
code.putln(
"if ((c = %s->tp_clear)) {" %
base_type.typeptr_cname)
code.putln(
"c(o);")
code.putln(
"}")
for entry in py_attrs:
name = "p->%s" % entry.cname
code.putln(
"t = %s; " %
typecast(py_object_type, entry.type, name))
code.put_init_var_to_py_none(entry, "p->%s")
#code.put_xdecref(name, entry.type)
code.putln(
"Py_XDECREF(t);")
code.putln(
"return 0;")
code.putln(
"}")
def generate_getitem_int_function(self, scope, code):
# This function is put into the sq_item slot when
# a __getitem__ method is present. It converts its
# argument to a Python integer and calls mp_subscript.
code.putln(
"static PyObject *%s(PyObject *o, Py_ssize_t i) {" %
scope.mangle_internal("sq_item"))
code.putln(
"PyObject *r;")
code.putln(
"PyObject *x = PyInt_FromSsize_t(i); if(!x) return 0;")
code.putln(
"r = o->ob_type->tp_as_mapping->mp_subscript(o, x);")
code.putln(
"Py_DECREF(x);")
code.putln(
"return r;")
code.putln(
"}")
def generate_ass_subscript_function(self, scope, code):
# Setting and deleting an item are both done through
# the ass_subscript method, so we dispatch to user's __setitem__
# or __delitem__, or raise an exception.
base_type = scope.parent_type.base_type
set_entry = scope.lookup_here("__setitem__")
del_entry = scope.lookup_here("__delitem__")
code.putln("")
code.putln(
"static int %s(PyObject *o, PyObject *i, PyObject *v) {" %
scope.mangle_internal("mp_ass_subscript"))
code.putln(
"if (v) {")
if set_entry:
code.putln(
"return %s(o, i, v);" %
set_entry.func_cname)
else:
self.generate_guarded_basetype_call(
base_type, "tp_as_mapping", "mp_ass_subscript", "o, i, v", code)
code.putln(
"PyErr_Format(PyExc_NotImplementedError,")
code.putln(
' "Subscript assignment not supported by %s", o->ob_type->tp_name);')
code.putln(
"return -1;")
code.putln(
"}")
code.putln(
"else {")
if del_entry:
code.putln(
"return %s(o, i);" %
del_entry.func_cname)
else:
self.generate_guarded_basetype_call(
base_type, "tp_as_mapping", "mp_ass_subscript", "o, i, v", code)
code.putln(
"PyErr_Format(PyExc_NotImplementedError,")
code.putln(
' "Subscript deletion not supported by %s", o->ob_type->tp_name);')
code.putln(
"return -1;")
code.putln(
"}")
code.putln(
"}")
def generate_guarded_basetype_call(
self, base_type, substructure, slot, args, code):
if base_type:
base_tpname = base_type.typeptr_cname
if substructure:
code.putln(
"if (%s->%s && %s->%s->%s)" % (
base_tpname, substructure, base_tpname, substructure, slot))
code.putln(
" return %s->%s->%s(%s);" % (
base_tpname, substructure, slot, args))
else:
code.putln(
"if (%s->%s)" % (
base_tpname, slot))
code.putln(
" return %s->%s(%s);" % (
base_tpname, slot, args))
def generate_ass_slice_function(self, scope, code):
# Setting and deleting a slice are both done through
# the ass_slice method, so we dispatch to user's __setslice__
# or __delslice__, or raise an exception.
base_type = scope.parent_type.base_type
set_entry = scope.lookup_here("__setslice__")
del_entry = scope.lookup_here("__delslice__")
code.putln("")
code.putln(
"static int %s(PyObject *o, Py_ssize_t i, Py_ssize_t j, PyObject *v) {" %
scope.mangle_internal("sq_ass_slice"))
code.putln(
"if (v) {")
if set_entry:
code.putln(
"return %s(o, i, j, v);" %
set_entry.func_cname)
else:
self.generate_guarded_basetype_call(
base_type, "tp_as_sequence", "sq_ass_slice", "o, i, j, v", code)
code.putln(
"PyErr_Format(PyExc_NotImplementedError,")
code.putln(
' "2-element slice assignment not supported by %s", o->ob_type->tp_name);')
code.putln(
"return -1;")
code.putln(
"}")
code.putln(
"else {")
if del_entry:
code.putln(
"return %s(o, i, j);" %
del_entry.func_cname)
else:
self.generate_guarded_basetype_call(
base_type, "tp_as_sequence", "sq_ass_slice", "o, i, j, v", code)
code.putln(
"PyErr_Format(PyExc_NotImplementedError,")
code.putln(
' "2-element slice deletion not supported by %s", o->ob_type->tp_name);')
code.putln(
"return -1;")
code.putln(
"}")
code.putln(
"}")
def generate_getattro_function(self, scope, code):
# First try to get the attribute using PyObject_GenericGetAttr.
# If that raises an AttributeError, call the user's __getattr__
# method.
entry = scope.lookup_here("__getattr__")
code.putln("")
code.putln(
"static PyObject *%s(PyObject *o, PyObject *n) {"
% scope.mangle_internal("tp_getattro"))
code.putln(
"PyObject *v = PyObject_GenericGetAttr(o, n);")
code.putln(
"if (!v && PyErr_ExceptionMatches(PyExc_AttributeError)) {")
code.putln(
"PyErr_Clear();")
code.putln(
"v = %s(o, n);" %
entry.func_cname)
code.putln(
"}")
code.putln(
"return v;")
code.putln(
"}")
def generate_setattro_function(self, scope, code):
# Setting and deleting an attribute are both done through
# the setattro method, so we dispatch to user's __setattr__
# or __delattr__ or fall back on PyObject_GenericSetAttr.
base_type = scope.parent_type.base_type
set_entry = scope.lookup_here("__setattr__")
del_entry = scope.lookup_here("__delattr__")
code.putln("")
code.putln(
"static int %s(PyObject *o, PyObject *n, PyObject *v) {" %
scope.mangle_internal("tp_setattro"))
code.putln(
"if (v) {")
if set_entry:
code.putln(
"return %s(o, n, v);" %
set_entry.func_cname)
else:
self.generate_guarded_basetype_call(
base_type, None, "tp_setattro", "o, n, v", code)
code.putln(
"return PyObject_GenericSetAttr(o, n, v);")
code.putln(
"}")
code.putln(
"else {")
if del_entry:
code.putln(
"return %s(o, n);" %
del_entry.func_cname)
else:
self.generate_guarded_basetype_call(
base_type, None, "tp_setattro", "o, n, v", code)
code.putln(
"return PyObject_GenericSetAttr(o, n, 0);")
code.putln(
"}")
code.putln(
"}")
def generate_descr_get_function(self, scope, code):
# The __get__ function of a descriptor object can be
# called with NULL for the second or third arguments
# under some circumstances, so we replace them with
# None in that case.
user_get_entry = scope.lookup_here("__get__")
code.putln("")
code.putln(
"static PyObject *%s(PyObject *o, PyObject *i, PyObject *c) {" %
scope.mangle_internal("tp_descr_get"))
code.putln(
"PyObject *r = 0;")
code.putln(
"if (!i) i = Py_None;")
code.putln(
"if (!c) c = Py_None;")
#code.put_incref("i", py_object_type)
#code.put_incref("c", py_object_type)
code.putln(
"r = %s(o, i, c);" %
user_get_entry.func_cname)
#code.put_decref("i", py_object_type)
#code.put_decref("c", py_object_type)
code.putln(
"return r;")
code.putln(
"}")
def generate_descr_set_function(self, scope, code):
# Setting and deleting are both done through the __set__
# method of a descriptor, so we dispatch to user's __set__
# or __delete__ or raise an exception.
base_type = scope.parent_type.base_type
user_set_entry = scope.lookup_here("__set__")
user_del_entry = scope.lookup_here("__delete__")
code.putln("")
code.putln(
"static int %s(PyObject *o, PyObject *i, PyObject *v) {" %
scope.mangle_internal("tp_descr_set"))
code.putln(
"if (v) {")
if user_set_entry:
code.putln(
"return %s(o, i, v);" %
user_set_entry.func_cname)
else:
self.generate_guarded_basetype_call(
base_type, None, "tp_descr_set", "o, i, v", code)
code.putln(
'PyErr_SetString(PyExc_NotImplementedError, "__set__");')
code.putln(
"return -1;")
code.putln(
"}")
code.putln(
"else {")
if user_del_entry:
code.putln(
"return %s(o, i);" %
user_del_entry.func_cname)
else:
self.generate_guarded_basetype_call(
base_type, None, "tp_descr_set", "o, i, v", code)
code.putln(
'PyErr_SetString(PyExc_NotImplementedError, "__delete__");')
code.putln(
"return -1;")
code.putln(
"}")
code.putln(
"}")
def generate_property_accessors(self, cclass_scope, code):
for entry in cclass_scope.property_entries:
property_scope = entry.scope
if property_scope.defines_any(["__get__"]):
self.generate_property_get_function(entry, code)
if property_scope.defines_any(["__set__", "__del__"]):
self.generate_property_set_function(entry, code)
def generate_property_get_function(self, property_entry, code):
property_scope = property_entry.scope
property_entry.getter_cname = property_scope.parent_scope.mangle(
Naming.prop_get_prefix, property_entry.name)
get_entry = property_scope.lookup_here("__get__")
code.putln("")
code.putln(
"static PyObject *%s(PyObject *o, void *x) {" %
property_entry.getter_cname)
code.putln(
"return %s(o);" %
get_entry.func_cname)
code.putln(
"}")
def generate_property_set_function(self, property_entry, code):
property_scope = property_entry.scope
property_entry.setter_cname = property_scope.parent_scope.mangle(
Naming.prop_set_prefix, property_entry.name)
set_entry = property_scope.lookup_here("__set__")
del_entry = property_scope.lookup_here("__del__")
code.putln("")
code.putln(
"static int %s(PyObject *o, PyObject *v, void *x) {" %
property_entry.setter_cname)
code.putln(
"if (v) {")
if set_entry:
code.putln(
"return %s(o, v);" %
set_entry.func_cname)
else:
code.putln(
'PyErr_SetString(PyExc_NotImplementedError, "__set__");')
code.putln(
"return -1;")
code.putln(
"}")
code.putln(
"else {")
if del_entry:
code.putln(
"return %s(o);" %
del_entry.func_cname)
else:
code.putln(
'PyErr_SetString(PyExc_NotImplementedError, "__del__");')
code.putln(
"return -1;")
code.putln(
"}")
code.putln(
"}")
def generate_typeobj_definition(self, modname, entry, code):
type = entry.type
scope = type.scope
for suite in TypeSlots.substructures:
suite.generate_substructure(scope, code)
code.putln("")
if entry.visibility == 'public':
header = "DL_EXPORT(PyTypeObject) %s = {"
else:
header = "PyTypeObject %s = {"
code.putln(header % type.typeobj_cname)
code.putln(
"PyObject_HEAD_INIT(0)")
code.putln(
"0, /*ob_size*/")
code.putln(
'"%s.%s", /*tp_name*/' % (
modname, scope.class_name))
if type.typedef_flag:
objstruct = type.objstruct_cname
else:
#objstruct = "struct %s" % scope.parent_type.objstruct_cname
objstruct = "struct %s" % type.objstruct_cname
code.putln(
"sizeof(%s), /*tp_basicsize*/" %
objstruct)
code.putln(
"0, /*tp_itemsize*/")
for slot in TypeSlots.slot_table:
slot.generate(scope, code)
code.putln(
"};")
def generate_method_table(self, env, code):
code.putln("")
code.putln(
"static struct PyMethodDef %s[] = {" %
env.method_table_cname)
for entry in env.pyfunc_entries:
code.put_pymethoddef(entry, ",")
code.putln(
"{0, 0, 0, 0}")
code.putln(
"};")
def generate_member_table(self, env, code):
#print "ModuleNode.generate_member_table: scope =", env ###
if env.public_attr_entries:
code.putln("")
code.putln(
"static struct PyMemberDef %s[] = {" %
env.member_table_cname)
type = env.parent_type
if type.typedef_flag:
objstruct = type.objstruct_cname
else:
objstruct = "struct %s" % type.objstruct_cname
for entry in env.public_attr_entries:
type_code = entry.type.pymemberdef_typecode
if entry.visibility == 'readonly':
flags = "READONLY"
else:
flags = "0"
code.putln('{"%s", %s, %s, %s, 0},' % (
entry.name,
type_code,
"offsetof(%s, %s)" % (objstruct, entry.name),
flags))
code.putln(
"{0, 0, 0, 0, 0}")
code.putln(
"};")
def generate_getset_table(self, env, code):
if env.property_entries:
code.putln("")
code.putln(
"static struct PyGetSetDef %s[] = {" %
env.getset_table_cname)
for entry in env.property_entries:
if entry.doc:
doc_code = code.get_string_const(entry.doc)
else:
doc_code = "0"
code.putln(
'{"%s", %s, %s, %s, 0},' % (
entry.name,
entry.getter_cname or "0",
entry.setter_cname or "0",
doc_code))
code.putln(
"{0, 0, 0, 0, 0}")
code.putln(
"};")
def generate_interned_name_table(self, interned_strings, code):
code.putln("")
code.putln(
"static PyObject **%s[] = {" % Naming.intern_tab_cname)
for s in interned_strings:
code.putln("&%s," % s.py_cname)
code.putln("0")
code.putln(
"};")
def generate_filename_init_prototype(self, code):
code.putln("");
code.putln("static void %s(void); /*proto*/" % Naming.fileinit_cname)
def generate_module_init_func(self, imported_modules, env, code):
denv = env.definition_scope
code.putln("")
header = "PyMODINIT_FUNC init%s(void)" % env.module_name
code.putln("%s; /*proto*/" % header)
code.putln("%s {" % header)
code.put_var_declarations(env.temp_entries)
#code.putln("/*--- Libary function declarations ---*/")
env.generate_library_function_declarations(code)
self.generate_filename_init_call(code)
#code.putln("/*--- Module creation code ---*/")
self.generate_module_creation_code(env, code)
#code.putln("/*--- String init code ---*/")
self.generate_string_init_code(env, code)
#code.putln("/*--- Intern code ---*/")
#self.generate_intern_code(env, code)
#code.putln("/*--- Global init code ---*/")
self.generate_global_init_code(env, code)
#code.putln("/*--- Function export code ---*/")
self.generate_pxd_function_export_code(env, code)
self.generate_api_function_export_code(env, code)
#code.putln("/*--- Function import code ---*/")
for module in imported_modules:
self.generate_c_function_import_code_for_module(module, env, code)
#code.putln("/*--- Type init code ---*/")
self.generate_type_init_code(env, code)
#code.putln("/*--- Type import code ---*/")
for module in imported_modules:
self.generate_type_import_code_for_module(module, env, code)
#code.putln("/*--- Execution code ---*/")
self.body.generate_execution_code(code)
code.putln("return;")
code.put_label(code.error_label)
code.put_var_xdecrefs(env.temp_entries)
code.putln('__Pyx_AddTraceback("%s");' % (env.qualified_name))
code.use_utility_code(Nodes.traceback_utility_code)
code.putln('}')
def generate_filename_init_call(self, code):
code.putln("%s();" % Naming.fileinit_cname)
def generate_module_creation_code(self, env, code):
# Generate code to create the module object and
# install the builtins.
if env.doc:
doc = env.doc_cname
else:
doc = "0"
code.putln(
'%s = Py_InitModule4("%s", %s, %s, 0, PYTHON_API_VERSION);' % (
env.module_cname,
env.module_name,
env.method_table_cname,
doc))
code.putln(
"if (!%s) %s;" % (
env.module_cname,
code.error_goto(self.pos)));
code.putln(
"Py_INCREF(%s);" %
env.module_cname)
code.putln(
'%s = PyImport_AddModule("__builtin__");' %
Naming.builtins_cname)
code.putln(
"if (!%s) %s;" % (
Naming.builtins_cname,
code.error_goto(self.pos)));
code.putln(
'if (PyObject_SetAttrString(%s, "__builtins__", %s) < 0) %s;' % (
env.module_cname,
Naming.builtins_cname,
code.error_goto(self.pos)))
def generate_string_init_code(self, env, code):
code.use_utility_code(Nodes.init_string_tab_utility_code)
code.putln(
"if (__Pyx_InitStrings(%s) < 0) %s;" % (
Naming.stringtab_cname,
code.error_goto(self.pos)))
def generate_global_init_code(self, env, code):
# Generate code to initialise global PyObject *
# variables to None.
for entry in env.var_entries:
if entry.visibility <> 'extern':
if entry.type.is_pyobject:
code.put_init_var_to_py_none(entry)
def generate_pxd_function_export_code(self, env, code):
denv = env.definition_scope
for entry in denv.cfunc_entries:
if entry.visibility <> 'extern':
self.generate_c_function_export_code(env, entry, code)
def generate_api_function_export_code(self, env, code):
for entry in env.cfunc_entries:
if entry.api:
self.generate_c_function_export_code(env, entry, code)
def generate_c_function_export_code(self, env, entry, code):
code.use_utility_code(function_export_utility_code)
signature = entry.type.signature_string()
code.putln('if (__Pyx_ExportFunction("%s", (void*)%s, "%s") < 0) %s' % (
entry.name,
entry.cname,
signature,
code.error_goto(self.pos)))
def generate_type_import_code_for_module(self, module, env, code):
# Generate type import code for all exported extension types in
# an imported module.
#if module.c_class_entries:
#print "generate_type_import_code_for_module:", module ###
for entry in module.c_class_entries:
if entry.defined_in_pxd:
self.generate_type_import_code(env, entry.type, entry.pos, code)
def generate_c_function_import_code_for_module(self, module, env, code):
# Generate import code for all exported C functions in a cimported module.
entries = []
for entry in module.cfunc_entries:
if entry.defined_in_pxd:
entries.append(entry)
if entries:
code.use_utility_code(import_module_utility_code)
code.use_utility_code(function_import_utility_code)
temp = self.module_temp_cname
code.putln(
'%s = __Pyx_ImportModule("%s"); if (!%s) %s' % (
temp,
module.qualified_name,
temp,
code.error_goto(self.pos)))
for entry in entries:
code.putln(
'if (__Pyx_ImportFunction(%s, "%s", (void**)&%s, "%s") < 0) %s' % (
temp,
entry.name,
entry.cname,
entry.type.signature_string(),
code.error_goto(self.pos)))
code.putln("Py_DECREF(%s); %s = 0;" % (temp, temp))
def generate_type_init_code(self, env, code):
# Generate type import code for extern extension types
# and type ready code for non-extern ones.
#print "generate_type_init_code:", env ###
denv = env.definition_scope
for entry in denv.c_class_entries + env.c_class_entries:
if entry.visibility == 'extern':
self.generate_type_import_code(env, entry.type, entry.pos, code)
else:
self.generate_base_type_import_code(env, entry, code)
self.generate_exttype_vtable_init_code(entry, code)
self.generate_type_ready_code(env, entry, code)
self.generate_typeptr_assignment_code(entry, code)
def generate_base_type_import_code(self, env, entry, code):
base_type = entry.type.base_type
if base_type and base_type.module_name <> env.qualified_name:
self.generate_type_import_code(env, base_type, self.pos, code)
def use_type_import_utility_code(self, code):
import ExprNodes
code.use_utility_code(type_import_utility_code)
code.use_utility_code(import_module_utility_code)
def generate_type_import_code(self, env, type, pos, code):
# If not already done, generate code to import the typeobject of an
# extension type defined in another module, and extract its C method
# table pointer if any.
#print "generate_type_import_code:", type ###
if type in env.types_imported:
return
if type.typedef_flag:
objstruct = type.objstruct_cname
else:
objstruct = "struct %s" % type.objstruct_cname
self.generate_type_import_call(type, code, code.error_goto(pos))
self.use_type_import_utility_code(code)
if type.vtabptr_cname:
code.putln(
"if (__Pyx_GetVtable(%s->tp_dict, &%s) < 0) %s" % (
type.typeptr_cname,
type.vtabptr_cname,
code.error_goto(pos)))
code.use_utility_code(Nodes.get_vtable_utility_code)
env.types_imported[type] = 1
def generate_type_import_call(self, type, code, error_code):
if type.typedef_flag:
objstruct = type.objstruct_cname
else:
objstruct = "struct %s" % type.objstruct_cname
code.putln('%s = __Pyx_ImportType("%s", "%s", sizeof(%s)); if (!%s) %s' % (
type.typeptr_cname,
type.module_name,
type.name,
objstruct,
type.typeptr_cname,
error_code))
def generate_type_ready_code(self, env, entry, code):
# Generate a call to PyType_Ready for an extension
# type defined in this module.
type = entry.type
typeobj_cname = type.typeobj_cname
scope = type.scope
if scope: # could be None if there was an error
if entry.visibility <> 'extern':
for slot in TypeSlots.slot_table:
slot.generate_dynamic_init_code(scope, code)
code.putln(
"if (PyType_Ready(&%s) < 0) %s" % (
typeobj_cname,
code.error_goto(entry.pos)))
if type.vtable_cname:
code.putln(
"if (__Pyx_SetVtable(%s.tp_dict, %s) < 0) %s" % (
typeobj_cname,
type.vtabptr_cname,
code.error_goto(entry.pos)))
code.use_utility_code(Nodes.set_vtable_utility_code)
code.putln(
'if (PyObject_SetAttrString(%s, "%s", (PyObject *)&%s) < 0) %s' % (
Naming.module_cname,
scope.class_name,
typeobj_cname,
code.error_goto(entry.pos)))
weakref_entry = scope.lookup_here("__weakref__")
if weakref_entry:
if weakref_entry.type is py_object_type:
tp_weaklistoffset = "%s.tp_weaklistoffset" % typeobj_cname
code.putln("if (%s == 0) %s = offsetof(struct %s, %s);" % (
tp_weaklistoffset,
tp_weaklistoffset,
type.objstruct_cname,
weakref_entry.cname))
else:
error(weakref_entry.pos, "__weakref__ slot must be of type 'object'")
def generate_exttype_vtable_init_code(self, entry, code):
# Generate code to initialise the C method table of an
# extension type.
type = entry.type
if type.vtable_cname:
code.putln(
"%s = &%s;" % (
type.vtabptr_cname,
type.vtable_cname))
if type.base_type and type.base_type.vtabptr_cname:
code.putln(
"%s.%s = *%s;" % (
type.vtable_cname,
Naming.obj_base_cname,
type.base_type.vtabptr_cname))
for meth_entry in type.scope.cfunc_entries:
if meth_entry.func_cname:
code.putln(
"*(void(**)(void))&%s.%s = (void(*)(void))%s;" % (
type.vtable_cname,
meth_entry.cname,
meth_entry.func_cname))
def generate_typeptr_assignment_code(self, entry, code):
# Generate code to initialise the typeptr of an extension
# type defined in this module to point to its type object.
type = entry.type
if type.typeobj_cname:
code.putln(
"%s = &%s;" % (
type.typeptr_cname, type.typeobj_cname))
def generate_utility_functions(self, code):
code.global_state.generate_utility_functions(code)
#------------------------------------------------------------------------------------
#
# Runtime support code
#
#------------------------------------------------------------------------------------
import_module_utility_code = [
"""
static PyObject *__Pyx_ImportModule(char *name); /*proto*/
""","""
#ifndef __PYX_HAVE_RT_ImportModule
#define __PYX_HAVE_RT_ImportModule
static PyObject *__Pyx_ImportModule(char *name) {
PyObject *py_name = 0;
py_name = PyString_FromString(name);
if (!py_name)
goto bad;
return PyImport_Import(py_name);
bad:
Py_XDECREF(py_name);
return 0;
}
#endif
"""]
#------------------------------------------------------------------------------------
type_import_utility_code = [
"""
static PyTypeObject *__Pyx_ImportType(char *module_name, char *class_name, long size); /*proto*/
""","""
#ifndef __PYX_HAVE_RT_ImportType
#define __PYX_HAVE_RT_ImportType
static PyTypeObject *__Pyx_ImportType(char *module_name, char *class_name,
long size)
{
PyObject *py_module = 0;
PyObject *result = 0;
py_module = __Pyx_ImportModule(module_name);
if (!py_module)
goto bad;
result = PyObject_GetAttrString(py_module, class_name);
if (!result)
goto bad;
if (!PyType_Check(result)) {
PyErr_Format(PyExc_TypeError,
"%s.%s is not a type object",
module_name, class_name);
goto bad;
}
if (((PyTypeObject *)result)->tp_basicsize != size) {
PyErr_Format(PyExc_ValueError,
"%s.%s does not appear to be the correct type object",
module_name, class_name);
goto bad;
}
return (PyTypeObject *)result;
bad:
Py_XDECREF(result);
return 0;
}
#endif
"""]
#------------------------------------------------------------------------------------
function_export_utility_code = [
"""
static int __Pyx_ExportFunction(char *n, void *f, char *s); /*proto*/
""",r"""
static int __Pyx_ExportFunction(char *n, void *f, char *s) {
PyObject *d = 0;
PyObject *p = 0;
d = PyObject_GetAttrString(%(MODULE)s, "%(API)s");
if (!d) {
PyErr_Clear();
d = PyDict_New();
if (!d)
goto bad;
Py_INCREF(d);
if (PyModule_AddObject(%(MODULE)s, "%(API)s", d) < 0)
goto bad;
}
p = PyCObject_FromVoidPtrAndDesc(f, s, 0);
if (!p)
goto bad;
if (PyDict_SetItemString(d, n, p) < 0)
goto bad;
Py_DECREF(d);
return 0;
bad:
Py_XDECREF(p);
Py_XDECREF(d);
return -1;
}
""" % {'MODULE': Naming.module_cname, 'API': Naming.api_name}]
#------------------------------------------------------------------------------------
function_import_utility_code = [
"""
static int __Pyx_ImportFunction(PyObject *module, char *funcname, void **f, char *sig); /*proto*/
""","""
#ifndef __PYX_HAVE_RT_ImportFunction
#define __PYX_HAVE_RT_ImportFunction
static int __Pyx_ImportFunction(PyObject *module, char *funcname, void **f, char *sig) {
PyObject *d = 0;
PyObject *cobj = 0;
char *desc;
d = PyObject_GetAttrString(module, "%(API)s");
if (!d)
goto bad;
cobj = PyDict_GetItemString(d, funcname);
if (!cobj) {
PyErr_Format(PyExc_ImportError,
"%%s does not export expected C function %%s",
PyModule_GetName(module), funcname);
goto bad;
}
desc = (char *)PyCObject_GetDesc(cobj);
if (!desc)
goto bad;
if (strcmp(desc, sig) != 0) {
PyErr_Format(PyExc_TypeError,
"C function %%s.%%s has wrong signature (expected %%s, got %%s)",
PyModule_GetName(module), funcname, sig, desc);
goto bad;
}
*f = PyCObject_AsVoidPtr(cobj);
Py_DECREF(d);
return 0;
bad:
Py_XDECREF(d);
return -1;
}
#endif
""" % dict(API = Naming.api_name)]
|