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Copy pathModuleNode.py
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3196 lines (2880 loc) · 137 KB
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#
# Module parse tree node
#
from __future__ import absolute_import
import cython
cython.declare(Naming=object, Options=object, PyrexTypes=object, TypeSlots=object,
error=object, warning=object, py_object_type=object, UtilityCode=object,
EncodedString=object, re=object)
from collections import defaultdict
import json
import operator
import os
import re
from .PyrexTypes import CPtrType
from . import Future
from . import Annotate
from . import Code
from . import Naming
from . import Nodes
from . import Options
from . import TypeSlots
from . import PyrexTypes
from . import Pythran
from .Errors import error, warning
from .PyrexTypes import py_object_type
from ..Utils import open_new_file, replace_suffix, decode_filename, build_hex_version
from .Code import UtilityCode, IncludeCode
from .StringEncoding import EncodedString
from .Pythran import has_np_pythran
def check_c_declarations_pxd(module_node):
module_node.scope.check_c_classes_pxd()
return module_node
def check_c_declarations(module_node):
module_node.scope.check_c_classes()
module_node.scope.check_c_functions()
return module_node
def generate_c_code_config(env, options):
if Options.annotate or options.annotate:
emit_linenums = False
else:
emit_linenums = options.emit_linenums
return Code.CCodeConfig(
emit_linenums=emit_linenums,
emit_code_comments=env.directives['emit_code_comments'],
c_line_in_traceback=options.c_line_in_traceback)
class ModuleNode(Nodes.Node, Nodes.BlockNode):
# doc string or None
# body StatListNode
#
# referenced_modules [ModuleScope]
# full_module_name string
#
# scope The module scope.
# compilation_source A CompilationSource (see Main)
# directives Top-level compiler directives
child_attrs = ["body"]
directives = None
def merge_in(self, tree, scope, merge_scope=False):
# Merges in the contents of another tree, and possibly scope. With the
# current implementation below, this must be done right prior
# to code generation.
#
# Note: This way of doing it seems strange -- I believe the
# right concept is to split ModuleNode into a ModuleNode and a
# CodeGenerator, and tell that CodeGenerator to generate code
# from multiple sources.
assert isinstance(self.body, Nodes.StatListNode)
if isinstance(tree, Nodes.StatListNode):
self.body.stats.extend(tree.stats)
else:
self.body.stats.append(tree)
self.scope.utility_code_list.extend(scope.utility_code_list)
for inc in scope.c_includes.values():
self.scope.process_include(inc)
def extend_if_not_in(L1, L2):
for x in L2:
if x not in L1:
L1.append(x)
extend_if_not_in(self.scope.included_files, scope.included_files)
if merge_scope:
# Ensure that we don't generate import code for these entries!
for entry in scope.c_class_entries:
entry.type.module_name = self.full_module_name
entry.type.scope.directives["internal"] = True
self.scope.merge_in(scope)
def analyse_declarations(self, env):
if has_np_pythran(env):
Pythran.include_pythran_generic(env)
if self.directives:
env.old_style_globals = self.directives['old_style_globals']
if not Options.docstrings:
env.doc = self.doc = None
elif Options.embed_pos_in_docstring:
env.doc = EncodedString(u'File: %s (starting at line %s)' % Nodes.relative_position(self.pos))
if self.doc is not None:
env.doc = EncodedString(env.doc + u'\n' + self.doc)
env.doc.encoding = self.doc.encoding
else:
env.doc = self.doc
env.directives = self.directives
self.body.analyse_declarations(env)
def prepare_utility_code(self):
# prepare any utility code that must be created before code generation
# specifically: CythonUtilityCode
env = self.scope
if env.has_import_star:
self.create_import_star_conversion_utility_code(env)
for name, entry in sorted(env.entries.items()):
if (entry.create_wrapper and entry.scope is env
and entry.is_type and entry.type.is_enum):
entry.type.create_type_wrapper(env)
def process_implementation(self, options, result):
env = self.scope
env.return_type = PyrexTypes.c_void_type
self.referenced_modules = []
self.find_referenced_modules(env, self.referenced_modules, {})
self.sort_cdef_classes(env)
self.generate_c_code(env, options, result)
self.generate_h_code(env, options, result)
self.generate_api_code(env, options, 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_h_code(self, env, options, result):
def h_entries(entries, api=0, pxd=0):
return [entry for entry in entries
if ((entry.visibility == 'public') or
(api and entry.api) or
(pxd and entry.defined_in_pxd))]
h_types = h_entries(env.type_entries, api=1)
h_vars = h_entries(env.var_entries)
h_funcs = h_entries(env.cfunc_entries)
h_extension_types = h_entries(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()
c_code_config = generate_c_code_config(env, options)
Code.GlobalState(h_code, self, c_code_config)
if options.generate_pxi:
result.i_file = replace_suffix(result.c_file, ".pxi")
i_code = Code.PyrexCodeWriter(result.i_file)
else:
i_code = None
h_code.put_generated_by()
h_guard = Naming.h_guard_prefix + self.api_name(env)
h_code.put_h_guard(h_guard)
h_code.putln("")
self.generate_type_header_code(h_types, h_code)
if options.capi_reexport_cincludes:
self.generate_includes(env, [], h_code)
h_code.putln("")
api_guard = Naming.api_guard_prefix + self.api_name(env)
h_code.putln("#ifndef %s" % api_guard)
h_code.putln("")
self.generate_extern_c_macro_definition(h_code)
h_code.putln("")
self.generate_dl_import_macro(h_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)
if h_funcs:
h_code.putln("")
for entry in h_funcs:
self.generate_public_declaration(entry, h_code, i_code)
if h_vars:
h_code.putln("")
for entry in h_vars:
self.generate_public_declaration(entry, h_code, i_code)
h_code.putln("")
h_code.putln("#endif /* !%s */" % api_guard)
h_code.putln("")
h_code.putln("/* WARNING: the interface of the module init function changed in CPython 3.5. */")
h_code.putln("/* It now returns a PyModuleDef instance instead of a PyModule instance. */")
h_code.putln("")
h_code.putln("#if PY_MAJOR_VERSION < 3")
h_code.putln("PyMODINIT_FUNC init%s(void);" % env.module_name)
h_code.putln("#else")
h_code.putln("PyMODINIT_FUNC %s(void);" % self.mod_init_func_cname('PyInit', env))
h_code.putln("#endif")
h_code.putln("")
h_code.putln("#endif /* !%s */" % h_guard)
f = open_new_file(result.h_file)
try:
h_code.copyto(f)
finally:
f.close()
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)))
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, options, result):
def api_entries(entries, pxd=0):
return [entry for entry in entries
if entry.api or (pxd and entry.defined_in_pxd)]
api_vars = api_entries(env.var_entries)
api_funcs = api_entries(env.cfunc_entries)
api_extension_types = api_entries(env.c_class_entries)
if api_vars or api_funcs or api_extension_types:
result.api_file = replace_suffix(result.c_file, "_api.h")
h_code = Code.CCodeWriter()
c_code_config = generate_c_code_config(env, options)
Code.GlobalState(h_code, self, c_code_config)
h_code.put_generated_by()
api_guard = Naming.api_guard_prefix + self.api_name(env)
h_code.put_h_guard(api_guard)
# Work around https://bugs.python.org/issue4709
h_code.putln('#ifdef __MINGW64__')
h_code.putln('#define MS_WIN64')
h_code.putln('#endif')
h_code.putln('#include "Python.h"')
if result.h_file:
h_code.putln('#include "%s"' % os.path.basename(result.h_file))
if api_extension_types:
h_code.putln("")
for entry in api_extension_types:
type = entry.type
h_code.putln("static PyTypeObject *%s = 0;" % 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)
cname = env.mangle(Naming.func_prefix_api, entry.name)
h_code.putln("static %s = 0;" % type.declaration_code(cname))
h_code.putln("#define %s %s" % (entry.name, cname))
if api_vars:
h_code.putln("")
for entry in api_vars:
type = CPtrType(entry.type)
cname = env.mangle(Naming.varptr_prefix_api, entry.name)
h_code.putln("static %s = 0;" % type.declaration_code(cname))
h_code.putln("#define %s (*%s)" % (entry.name, cname))
h_code.put(UtilityCode.load_as_string("PyIdentifierFromString", "ImportExport.c")[0])
if api_vars:
h_code.put(UtilityCode.load_as_string("VoidPtrImport", "ImportExport.c")[1])
if api_funcs:
h_code.put(UtilityCode.load_as_string("FunctionImport", "ImportExport.c")[1])
if api_extension_types:
h_code.put(UtilityCode.load_as_string("TypeImport", "ImportExport.c")[0])
h_code.put(UtilityCode.load_as_string("TypeImport", "ImportExport.c")[1])
h_code.putln("")
h_code.putln("static int import_%s(void) {" % self.api_name(env))
h_code.putln("PyObject *module = 0;")
h_code.putln('module = PyImport_ImportModule("%s");' % env.qualified_name)
h_code.putln("if (!module) goto bad;")
for entry in api_funcs:
cname = env.mangle(Naming.func_prefix_api, entry.name)
sig = entry.type.signature_string()
h_code.putln(
'if (__Pyx_ImportFunction(module, "%s", (void (**)(void))&%s, "%s") < 0) goto bad;'
% (entry.name, cname, sig))
for entry in api_vars:
cname = env.mangle(Naming.varptr_prefix_api, entry.name)
sig = entry.type.empty_declaration_code()
h_code.putln(
'if (__Pyx_ImportVoidPtr(module, "%s", (void **)&%s, "%s") < 0) goto bad;'
% (entry.name, cname, sig))
with ModuleImportGenerator(h_code, imported_modules={env.qualified_name: 'module'}) as import_generator:
for entry in api_extension_types:
self.generate_type_import_call(entry.type, h_code, import_generator, error_code="goto bad;")
h_code.putln("Py_DECREF(module); module = 0;")
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 /* !%s */" % api_guard)
f = open_new_file(result.api_file)
try:
h_code.copyto(f)
finally:
f.close()
def generate_cclass_header_code(self, type, h_code):
h_code.putln("%s %s %s;" % (
Naming.extern_c_macro,
PyrexTypes.public_decl("PyTypeObject", "DL_IMPORT"),
type.typeobj_cname))
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, options, result):
modules = self.referenced_modules
if Options.annotate or options.annotate:
rootwriter = Annotate.AnnotationCCodeWriter()
else:
rootwriter = Code.CCodeWriter()
c_code_config = generate_c_code_config(env, options)
globalstate = Code.GlobalState(
rootwriter, self,
code_config=c_code_config,
common_utility_include_dir=options.common_utility_include_dir,
)
globalstate.initialize_main_c_code()
h_code = globalstate['h_code']
self.generate_module_preamble(env, options, modules, result.embedded_metadata, h_code)
globalstate.module_pos = self.pos
globalstate.directives = self.directives
globalstate.use_utility_code(refnanny_utility_code)
code = globalstate['before_global_var']
code.putln('#define __Pyx_MODULE_NAME "%s"' % self.full_module_name)
module_is_main = "%s%s" % (Naming.module_is_main, self.full_module_name.replace('.', '__'))
code.putln("extern int %s;" % module_is_main)
code.putln("int %s = 0;" % module_is_main)
code.putln("")
code.putln("/* Implementation of '%s' */" % env.qualified_name)
code = globalstate['late_includes']
code.putln("/* Late includes */")
self.generate_includes(env, modules, code, early=False)
code = globalstate['all_the_rest']
self.generate_cached_builtins_decls(env, code)
self.generate_lambda_definitions(env, code)
# generate normal variable and function definitions
self.generate_variable_definitions(env, code)
self.body.generate_function_definitions(env, code)
code.mark_pos(None)
self.generate_typeobj_definitions(env, code)
self.generate_method_table(env, code)
if env.has_import_star:
self.generate_import_star(env, code)
self.generate_pymoduledef_struct(env, code)
# initialise the macro to reduce the code size of one-time functionality
code.putln(UtilityCode.load_as_string("SmallCodeConfig", "ModuleSetupCode.c")[0].strip())
# init_globals is inserted before this
self.generate_module_init_func(modules[:-1], env, globalstate['init_module'])
self.generate_module_cleanup_func(env, globalstate['cleanup_module'])
if Options.embed:
self.generate_main_method(env, globalstate['main_method'])
self.generate_filename_table(globalstate['filename_table'])
self.generate_declarations_for_modules(env, modules, globalstate)
h_code.write('\n')
for utilcode in env.utility_code_list[:]:
globalstate.use_utility_code(utilcode)
globalstate.finalize_main_c_code()
f = open_new_file(result.c_file)
try:
rootwriter.copyto(f)
finally:
f.close()
result.c_file_generated = 1
if options.gdb_debug:
self._serialize_lineno_map(env, rootwriter)
if Options.annotate or options.annotate:
self._generate_annotations(rootwriter, result, options)
def _generate_annotations(self, rootwriter, result, options):
self.annotate(rootwriter)
coverage_xml_filename = Options.annotate_coverage_xml or options.annotate_coverage_xml
if coverage_xml_filename and os.path.exists(coverage_xml_filename):
try:
import xml.etree.cElementTree as ET
except ImportError:
import xml.etree.ElementTree as ET
coverage_xml = ET.parse(coverage_xml_filename).getroot()
for el in coverage_xml.getiterator():
el.tail = None # save some memory
else:
coverage_xml = None
rootwriter.save_annotation(result.main_source_file, result.c_file, coverage_xml=coverage_xml)
# if we included files, additionally generate one annotation file for each
if not self.scope.included_files:
return
search_include_file = self.scope.context.search_include_directories
target_dir = os.path.abspath(os.path.dirname(result.c_file))
for included_file in self.scope.included_files:
target_file = os.path.abspath(os.path.join(target_dir, included_file))
target_file_dir = os.path.dirname(target_file)
if not target_file_dir.startswith(target_dir):
# any other directories may not be writable => avoid trying
continue
source_file = search_include_file(included_file, "", self.pos, include=True)
if not source_file:
continue
if target_file_dir != target_dir and not os.path.exists(target_file_dir):
try:
os.makedirs(target_file_dir)
except OSError as e:
import errno
if e.errno != errno.EEXIST:
raise
rootwriter.save_annotation(source_file, target_file, coverage_xml=coverage_xml)
def _serialize_lineno_map(self, env, ccodewriter):
tb = env.context.gdb_debug_outputwriter
markers = ccodewriter.buffer.allmarkers()
d = defaultdict(list)
for c_lineno, cython_lineno in enumerate(markers):
if cython_lineno > 0:
d[cython_lineno].append(c_lineno + 1)
tb.start('LineNumberMapping')
for cython_lineno, c_linenos in sorted(d.items()):
tb.add_entry(
'LineNumber',
c_linenos=' '.join(map(str, c_linenos)),
cython_lineno=str(cython_lineno),
)
tb.end('LineNumberMapping')
tb.serialize()
def find_referenced_modules(self, env, module_list, modules_seen):
if env not in modules_seen:
modules_seen[env] = 1
for imported_module in env.cimported_modules:
self.find_referenced_modules(imported_module, module_list, modules_seen)
module_list.append(env)
def sort_types_by_inheritance(self, type_dict, type_order, getkey):
# copy the types into a list moving each parent type before
# its first child
type_list = []
for i, key in enumerate(type_order):
new_entry = type_dict[key]
# collect all base classes to check for children
hierarchy = set()
base = new_entry
while base:
base_type = base.type.base_type
if not base_type:
break
base_key = getkey(base_type)
hierarchy.add(base_key)
base = type_dict.get(base_key)
new_entry.base_keys = hierarchy
# find the first (sub-)subclass and insert before that
for j in range(i):
entry = type_list[j]
if key in entry.base_keys:
type_list.insert(j, new_entry)
break
else:
type_list.append(new_entry)
return type_list
def sort_type_hierarchy(self, module_list, env):
# poor developer's OrderedDict
vtab_dict, vtab_dict_order = {}, []
vtabslot_dict, vtabslot_dict_order = {}, []
for module in module_list:
for entry in module.c_class_entries:
if entry.used and not entry.in_cinclude:
type = entry.type
key = type.vtabstruct_cname
if not key:
continue
if key in vtab_dict:
# FIXME: this should *never* happen, but apparently it does
# for Cython generated utility code
from .UtilityCode import NonManglingModuleScope
assert isinstance(entry.scope, NonManglingModuleScope), str(entry.scope)
assert isinstance(vtab_dict[key].scope, NonManglingModuleScope), str(vtab_dict[key].scope)
else:
vtab_dict[key] = entry
vtab_dict_order.append(key)
all_defined_here = module is env
for entry in module.type_entries:
if entry.used and (all_defined_here or entry.defined_in_pxd):
type = entry.type
if type.is_extension_type and not entry.in_cinclude:
type = entry.type
key = type.objstruct_cname
assert key not in vtabslot_dict, key
vtabslot_dict[key] = entry
vtabslot_dict_order.append(key)
def vtabstruct_cname(entry_type):
return entry_type.vtabstruct_cname
vtab_list = self.sort_types_by_inheritance(
vtab_dict, vtab_dict_order, vtabstruct_cname)
def objstruct_cname(entry_type):
return entry_type.objstruct_cname
vtabslot_list = self.sort_types_by_inheritance(
vtabslot_dict, vtabslot_dict_order, objstruct_cname)
return (vtab_list, vtabslot_list)
def sort_cdef_classes(self, env):
key_func = operator.attrgetter('objstruct_cname')
entry_dict, entry_order = {}, []
for entry in env.c_class_entries:
key = key_func(entry.type)
assert key not in entry_dict, key
entry_dict[key] = entry
entry_order.append(key)
env.c_class_entries[:] = self.sort_types_by_inheritance(
entry_dict, entry_order, key_func)
def generate_type_definitions(self, env, modules, vtab_list, vtabslot_list, code):
# TODO: Why are these separated out?
for entry in vtabslot_list:
self.generate_objstruct_predeclaration(entry.type, code)
vtabslot_entries = set(vtabslot_list)
for module in modules:
definition = module is env
if definition:
type_entries = module.type_entries
else:
type_entries = []
for entry in module.type_entries:
if entry.defined_in_pxd:
type_entries.append(entry)
type_entries = [t for t in type_entries if t not in vtabslot_entries]
self.generate_type_header_code(type_entries, code)
for entry in vtabslot_list:
self.generate_objstruct_definition(entry.type, code)
self.generate_typeobj_predeclaration(entry, code)
for entry in vtab_list:
self.generate_typeobj_predeclaration(entry, code)
self.generate_exttype_vtable_struct(entry, code)
self.generate_exttype_vtabptr_declaration(entry, code)
self.generate_exttype_final_methods_declaration(entry, code)
def generate_declarations_for_modules(self, env, modules, globalstate):
typecode = globalstate['type_declarations']
typecode.putln("")
typecode.putln("/*--- Type declarations ---*/")
# This is to work around the fact that array.h isn't part of the C-API,
# but we need to declare it earlier than utility code.
if 'cpython.array' in [m.qualified_name for m in modules]:
typecode.putln('#ifndef _ARRAYARRAY_H')
typecode.putln('struct arrayobject;')
typecode.putln('typedef struct arrayobject arrayobject;')
typecode.putln('#endif')
vtab_list, vtabslot_list = self.sort_type_hierarchy(modules, env)
self.generate_type_definitions(
env, modules, vtab_list, vtabslot_list, typecode)
modulecode = globalstate['module_declarations']
for module in modules:
defined_here = module is env
modulecode.putln("")
modulecode.putln("/* Module declarations from '%s' */" % module.qualified_name)
self.generate_c_class_declarations(module, modulecode, defined_here)
self.generate_cvariable_declarations(module, modulecode, defined_here)
self.generate_cfunction_declarations(module, modulecode, defined_here)
def _put_setup_code(self, code, name):
code.put(UtilityCode.load_as_string(name, "ModuleSetupCode.c")[1])
def generate_module_preamble(self, env, options, cimported_modules, metadata, code):
code.put_generated_by()
if metadata:
code.putln("/* BEGIN: Cython Metadata")
code.putln(json.dumps(metadata, indent=4, sort_keys=True))
code.putln("END: Cython Metadata */")
code.putln("")
code.putln("#define PY_SSIZE_T_CLEAN")
for inc in sorted(env.c_includes.values(), key=IncludeCode.sortkey):
if inc.location == inc.INITIAL:
inc.write(code)
code.putln("#ifndef Py_PYTHON_H")
code.putln(" #error Python headers needed to compile C extensions, "
"please install development version of Python.")
code.putln("#elif PY_VERSION_HEX < 0x02070000 || "
"(0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)")
code.putln(" #error Cython requires Python 2.7+ or Python 3.3+.")
code.putln("#else")
code.globalstate["end"].putln("#endif /* Py_PYTHON_H */")
from .. import __version__
code.putln('#define CYTHON_ABI "%s"' % __version__.replace('.', '_'))
code.putln('#define CYTHON_HEX_VERSION %s' % build_hex_version(__version__))
code.putln("#define CYTHON_FUTURE_DIVISION %d" % (
Future.division in env.context.future_directives))
self._put_setup_code(code, "CModulePreamble")
if env.context.options.cplus:
self._put_setup_code(code, "CppInitCode")
else:
self._put_setup_code(code, "CInitCode")
self._put_setup_code(code, "PythonCompatibility")
self._put_setup_code(code, "MathInitCode")
if options.c_line_in_traceback:
cinfo = "%s = %s; " % (Naming.clineno_cname, Naming.line_c_macro)
else:
cinfo = ""
code.put("""
#define __PYX_ERR(f_index, lineno, Ln_error) \\
{ \\
%s = %s[f_index]; %s = lineno; %sgoto Ln_error; \\
}
""" % (Naming.filename_cname, Naming.filetable_cname, Naming.lineno_cname, cinfo))
code.putln("")
self.generate_extern_c_macro_definition(code)
code.putln("")
code.putln("#define %s" % Naming.h_guard_prefix + self.api_name(env))
code.putln("#define %s" % Naming.api_guard_prefix + self.api_name(env))
code.putln("/* Early includes */")
self.generate_includes(env, cimported_modules, code, late=False)
code.putln("")
code.putln("#if defined(PYREX_WITHOUT_ASSERTIONS) && !defined(CYTHON_WITHOUT_ASSERTIONS)")
code.putln("#define CYTHON_WITHOUT_ASSERTIONS")
code.putln("#endif")
code.putln("")
if env.directives['ccomplex']:
code.putln("")
code.putln("#if !defined(CYTHON_CCOMPLEX)")
code.putln("#define CYTHON_CCOMPLEX 1")
code.putln("#endif")
code.putln("")
code.put(UtilityCode.load_as_string("UtilityFunctionPredeclarations", "ModuleSetupCode.c")[0])
c_string_type = env.directives['c_string_type']
c_string_encoding = env.directives['c_string_encoding']
if c_string_type not in ('bytes', 'bytearray') and not c_string_encoding:
error(self.pos, "a default encoding must be provided if c_string_type is not a byte type")
code.putln('#define __PYX_DEFAULT_STRING_ENCODING_IS_ASCII %s' % int(c_string_encoding == 'ascii'))
if c_string_encoding == 'default':
code.putln('#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT 1')
else:
code.putln('#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT 0')
code.putln('#define __PYX_DEFAULT_STRING_ENCODING "%s"' % c_string_encoding)
if c_string_type == 'bytearray':
c_string_func_name = 'ByteArray'
else:
c_string_func_name = c_string_type.title()
code.putln('#define __Pyx_PyObject_FromString __Pyx_Py%s_FromString' % c_string_func_name)
code.putln('#define __Pyx_PyObject_FromStringAndSize __Pyx_Py%s_FromStringAndSize' % c_string_func_name)
code.put(UtilityCode.load_as_string("TypeConversions", "TypeConversion.c")[0])
# These utility functions are assumed to exist and used elsewhere.
PyrexTypes.c_long_type.create_to_py_utility_code(env)
PyrexTypes.c_long_type.create_from_py_utility_code(env)
PyrexTypes.c_int_type.create_from_py_utility_code(env)
code.put(Nodes.branch_prediction_macros)
code.putln('static CYTHON_INLINE void __Pyx_pretend_to_initialize(void* ptr) { (void)ptr; }')
code.putln('')
code.putln('static PyObject *%s = NULL;' % env.module_cname)
code.putln('static PyObject *%s;' % env.module_dict_cname)
code.putln('static PyObject *%s;' % Naming.builtins_cname)
code.putln('static PyObject *%s = NULL;' % Naming.cython_runtime_cname)
code.putln('static PyObject *%s;' % Naming.empty_tuple)
code.putln('static PyObject *%s;' % Naming.empty_bytes)
code.putln('static PyObject *%s;' % Naming.empty_unicode)
if Options.pre_import is not None:
code.putln('static PyObject *%s;' % Naming.preimport_cname)
code.putln('static int %s;' % Naming.lineno_cname)
code.putln('static int %s = 0;' % Naming.clineno_cname)
code.putln('static const char * %s= %s;' % (Naming.cfilenm_cname, Naming.file_c_macro))
code.putln('static const char *%s;' % Naming.filename_cname)
env.use_utility_code(UtilityCode.load_cached("FastTypeChecks", "ModuleSetupCode.c"))
if has_np_pythran(env):
env.use_utility_code(UtilityCode.load_cached("PythranConversion", "CppSupport.cpp"))
def generate_extern_c_macro_definition(self, code):
name = Naming.extern_c_macro
code.putln("#ifndef %s" % name)
code.putln(" #ifdef __cplusplus")
code.putln(' #define %s extern "C"' % name)
code.putln(" #else")
code.putln(" #define %s extern" % name)
code.putln(" #endif")
code.putln("#endif")
def generate_dl_import_macro(self, code):
code.putln("#ifndef DL_IMPORT")
code.putln(" #define DL_IMPORT(_T) _T")
code.putln("#endif")
def generate_includes(self, env, cimported_modules, code, early=True, late=True):
includes = []
for inc in sorted(env.c_includes.values(), key=IncludeCode.sortkey):
if inc.location == inc.EARLY:
if early:
inc.write(code)
elif inc.location == inc.LATE:
if late:
inc.write(code)
if early:
code.putln_openmp("#include <omp.h>")
def generate_filename_table(self, code):
from os.path import isabs, basename
code.putln("")
code.putln("static const char *%s[] = {" % Naming.filetable_cname)
if code.globalstate.filename_list:
for source_desc in code.globalstate.filename_list:
file_path = source_desc.get_filenametable_entry()
if isabs(file_path):
file_path = basename(file_path) # never include absolute paths
escaped_filename = file_path.replace("\\", "\\\\").replace('"', r'\"')
code.putln('"%s",' % escaped_filename)
else:
# Some C compilers don't like an empty array
code.putln("0")
code.putln("};")
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?
# Forward declarations
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!
pass
elif type.is_struct_or_union or type.is_cpp_class:
self.generate_struct_union_predeclaration(entry, code)
elif type.is_ctuple and entry.used:
self.generate_struct_union_predeclaration(entry.type.struct_entry, code)
elif type.is_extension_type:
self.generate_objstruct_predeclaration(type, code)
# Actual declarations
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_enum:
self.generate_enum_definition(entry, code)
elif type.is_struct_or_union:
self.generate_struct_union_definition(entry, code)
elif type.is_ctuple and entry.used:
self.generate_struct_union_definition(entry.type.struct_entry, code)
elif type.is_cpp_class:
self.generate_cpp_class_definition(entry, code)
elif type.is_extension_type:
self.generate_objstruct_definition(type, code)
def generate_gcc33_hack(self, env, code):
# Workaround for spurious warning generation in gcc 3.3
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
if base_type.is_numeric:
try:
writer = code.globalstate['numeric_typedefs']
except KeyError:
writer = code
else:
writer = code
writer.mark_pos(entry.pos)
writer.putln("typedef %s;" % base_type.declaration_code(entry.cname))
def sue_predeclaration(self, type, kind, name):
if type.typedef_flag:
return "%s %s;\ntypedef %s %s %s;" % (
kind, name,
kind, name, name)
else:
return "%s %s;" % (kind, name)
def generate_struct_union_predeclaration(self, entry, code):
type = entry.type
if type.is_cpp_class and type.templates:
code.putln("template <typename %s>" % ", typename ".join(
[T.empty_declaration_code() for T in type.templates]))
code.putln(self.sue_predeclaration(type, type.kind, type.cname))
def sue_header_footer(self, type, kind, name):
header = "%s %s {" % (kind, name)
footer = "};"
return header, footer
def generate_struct_union_definition(self, entry, code):
code.mark_pos(entry.pos)
type = entry.type
scope = type.scope
if scope:
kind = type.kind
packed = type.is_struct and type.packed
if packed:
kind = "%s %s" % (type.kind, "__Pyx_PACKED")
code.globalstate.use_utility_code(packed_struct_utility_code)
header, footer = \
self.sue_header_footer(type, kind, type.cname)
if packed:
code.putln("#if defined(__SUNPRO_C)")
code.putln(" #pragma pack(1)")
code.putln("#elif !defined(__GNUC__)")
code.putln(" #pragma pack(push, 1)")
code.putln("#endif")
code.putln(header)
var_entries = scope.var_entries
if not var_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)
if packed:
code.putln("#if defined(__SUNPRO_C)")
code.putln(" #pragma pack()")
code.putln("#elif !defined(__GNUC__)")
code.putln(" #pragma pack(pop)")
code.putln("#endif")
def generate_cpp_class_definition(self, entry, code):
code.mark_pos(entry.pos)
type = entry.type
scope = type.scope
if scope:
if type.templates:
code.putln("template <class %s>" % ", class ".join(
[T.empty_declaration_code() for T in type.templates]))
# Just let everything be public.
code.put("struct %s" % type.cname)
if type.base_classes:
base_class_decl = ", public ".join(
[base_class.empty_declaration_code() for base_class in type.base_classes])
code.put(" : public %s" % base_class_decl)
code.putln(" {")
py_attrs = [e for e in scope.entries.values()
if e.type.is_pyobject and not e.is_inherited]
has_virtual_methods = False
constructor = None
destructor = None
for attr in scope.var_entries:
if attr.type.is_cfunction and attr.type.is_static_method:
code.put("static ")
elif attr.name == "<init>":
constructor = attr
elif attr.name == "<del>":
destructor = attr
elif attr.type.is_cfunction:
code.put("virtual ")
has_virtual_methods = True
code.putln("%s;" % attr.type.declaration_code(attr.cname))
is_implementing = 'init_module' in code.globalstate.parts
if constructor or py_attrs:
if constructor:
arg_decls = []
arg_names = []
for arg in constructor.type.original_args[
:len(constructor.type.args)-constructor.type.optional_arg_count]:
arg_decls.append(arg.declaration_code())
arg_names.append(arg.cname)
if constructor.type.optional_arg_count:
arg_decls.append(constructor.type.op_arg_struct.declaration_code(Naming.optional_args_cname))
arg_names.append(Naming.optional_args_cname)
if not arg_decls:
arg_decls = ["void"]
else:
arg_decls = ["void"]
arg_names = []
if is_implementing:
code.putln("%s(%s) {" % (type.cname, ", ".join(arg_decls)))
if py_attrs:
code.put_ensure_gil()
for attr in py_attrs:
code.put_init_var_to_py_none(attr, nanny=False);
if constructor:
code.putln("%s(%s);" % (constructor.cname, ", ".join(arg_names)))
if py_attrs:
code.put_release_ensured_gil()
code.putln("}")
else:
code.putln("%s(%s);" % (type.cname, ", ".join(arg_decls)))
if destructor or py_attrs or has_virtual_methods:
if has_virtual_methods:
code.put("virtual ")
if is_implementing:
code.putln("~%s() {" % type.cname)
if py_attrs:
code.put_ensure_gil()
if destructor:
code.putln("%s();" % destructor.cname)
if py_attrs:
for attr in py_attrs:
code.put_var_xdecref(attr, nanny=False);
code.put_release_ensured_gil()
code.putln("}")
else:
code.putln("~%s();" % type.cname)
if py_attrs:
# Also need copy constructor and assignment operators.
if is_implementing:
code.putln("%s(const %s& __Pyx_other) {" % (type.cname, type.cname))
code.put_ensure_gil()
for attr in scope.var_entries:
if not attr.type.is_cfunction:
code.putln("%s = __Pyx_other.%s;" % (attr.cname, attr.cname))
code.put_var_incref(attr, nanny=False)
code.put_release_ensured_gil()
code.putln("}")
code.putln("%s& operator=(const %s& __Pyx_other) {" % (type.cname, type.cname))
code.putln("if (this != &__Pyx_other) {")
code.put_ensure_gil()
for attr in scope.var_entries:
if not attr.type.is_cfunction:
code.put_var_xdecref(attr, nanny=False);
code.putln("%s = __Pyx_other.%s;" % (attr.cname, attr.cname))
code.put_var_incref(attr, nanny=False)
code.put_release_ensured_gil()
code.putln("}")
code.putln("return *this;")
code.putln("}")
else:
code.putln("%s(const %s& __Pyx_other);" % (type.cname, type.cname))
code.putln("%s& operator=(const %s& __Pyx_other);" % (type.cname, type.cname))
code.putln("};")
def generate_enum_definition(self, entry, code):
code.mark_pos(entry.pos)