def wrapEvalBuiltin(source, globals_arg, locals_arg, source_ref):
provider = node.getParentVariableProvider()
outline_body = ExpressionOutlineBody(
provider=node.getParentVariableProvider(),
name="eval_call",
source_ref=source_ref,
)
globals_ref, locals_ref, tried, final = wrapEvalGlobalsAndLocals(
provider=provider,
globals_node=globals_arg,
locals_node=locals_arg,
temp_scope=outline_body.getOutlineTempScope(),
source_ref=source_ref,
)
# The wrapping should not relocate to the "source_ref".
assert (globals_arg is None or globals_ref.getSourceReference()
== globals_arg.getSourceReference())
assert (locals_arg is None or locals_ref.getSourceReference()
== locals_arg.getSourceReference())
source_variable = outline_body.allocateTempVariable(temp_scope=None,
name="source")
final.setStatements(final.getStatements() + (StatementDelVariable(
variable=source_variable, tolerant=True, source_ref=source_ref), ))
strip_choice = makeConstantRefNode(constant=(" \t", ),
source_ref=source_ref)
if python_version >= 300:
strip_choice = ExpressionConditional(
condition=ExpressionComparisonIs(
left=ExpressionBuiltinType1(
value=ExpressionTempVariableRef(
variable=source_variable, source_ref=source_ref),
source_ref=source_ref,
),
right=makeExpressionBuiltinRef(builtin_name="bytes",
source_ref=source_ref),
source_ref=source_ref,
),
expression_yes=makeConstantRefNode(constant=(b" \t", ),
source_ref=source_ref),
expression_no=strip_choice,
source_ref=source_ref,
)
# Source needs some special treatment for eval, if it's a string, it
# must be stripped.
string_fixup = StatementAssignmentVariable(
variable=source_variable,
source=makeExpressionCall(
called=ExpressionAttributeLookup(
source=ExpressionTempVariableRef(variable=source_variable,
source_ref=source_ref),
attribute_name="strip",
source_ref=source_ref,
),
args=strip_choice, # This is a tuple
kw=None,
source_ref=source_ref,
),
source_ref=source_ref,
)
acceptable_builtin_types = [
ExpressionBuiltinAnonymousRef(builtin_name="code",
source_ref=source_ref)
]
if python_version >= 270:
acceptable_builtin_types.append(
makeExpressionBuiltinRef(builtin_name="memoryview",
source_ref=source_ref))
statements = (
StatementAssignmentVariable(variable=source_variable,
source=source,
source_ref=source_ref),
makeStatementConditional(
condition=ExpressionOperationNOT(
operand=ExpressionBuiltinIsinstance(
instance=ExpressionTempVariableRef(
variable=source_variable, source_ref=source_ref),
classes=makeSequenceCreationOrConstant(
sequence_kind="tuple",
elements=acceptable_builtin_types,
source_ref=source_ref,
),
source_ref=source_ref,
),
source_ref=source_ref,
),
yes_branch=string_fixup,
no_branch=None,
source_ref=source_ref,
),
StatementReturn(
expression=ExpressionBuiltinEval(
source_code=ExpressionTempVariableRef(
variable=source_variable, source_ref=source_ref),
globals_arg=globals_ref,
locals_arg=locals_ref,
source_ref=source_ref,
),
source_ref=source_ref,
),
)
tried = makeStatementsSequence(statements=(tried, ) + statements,
allow_none=False,
source_ref=source_ref)
outline_body.setBody(
makeStatementsSequenceFromStatement(
statement=makeTryFinallyStatement(
provider=outline_body,
tried=tried,
final=final,
source_ref=source_ref,
)))
return outline_body
def buildClassNode2(provider, node, source_ref):
# This function is the Python2 special case with special re-formulation as
# according to developer manual, and it's very detailed, pylint: disable=too-many-locals
class_statement_nodes, class_doc = extractDocFromBody(node)
function_body = ExpressionClassBody(provider=provider,
name=node.name,
doc=class_doc,
source_ref=source_ref)
parent_module = provider.getParentModule()
code_object = CodeObjectSpec(
co_name=node.name,
co_kind="Class",
co_varnames=(),
co_freevars=(),
co_argcount=0,
co_posonlyargcount=0,
co_kwonlyargcount=0,
co_has_starlist=False,
co_has_stardict=False,
co_filename=parent_module.getRunTimeFilename(),
co_lineno=source_ref.getLineNumber(),
future_spec=parent_module.getFutureSpec(),
)
body = buildFrameNode(
provider=function_body,
nodes=class_statement_nodes,
code_object=code_object,
source_ref=source_ref,
)
if body is not None:
# The frame guard has nothing to tell its line number to.
body.source_ref = source_ref.atInternal()
locals_scope = function_body.getLocalsScope()
# The class body is basically a function that implicitly, at the end
# returns its locals and cannot have other return statements contained, and
# starts out with a variables "__module__" and potentially "__doc__" set.
statements = [
StatementSetLocalsDictionary(locals_scope=locals_scope,
source_ref=source_ref),
StatementAssignmentVariableName(
provider=function_body,
variable_name="__module__",
source=ExpressionModuleAttributeNameRef(
variable=provider.getParentModule().getVariableForReference(
"__name__"),
source_ref=source_ref,
),
source_ref=source_ref.atInternal(),
),
]
if class_doc is not None:
statements.append(
StatementAssignmentVariableName(
provider=function_body,
variable_name="__doc__",
source=makeConstantRefNode(constant=class_doc,
source_ref=source_ref,
user_provided=True),
source_ref=source_ref.atInternal(),
))
statements += (
body,
StatementReturn(
expression=ExpressionBuiltinLocalsRef(locals_scope=locals_scope,
source_ref=source_ref),
source_ref=source_ref,
),
)
body = makeStatementsSequenceFromStatement(
statement=makeTryFinallyStatement(
provider=function_body,
tried=mergeStatements(statements, True),
final=StatementReleaseLocals(locals_scope=locals_scope,
source_ref=source_ref),
source_ref=source_ref,
))
# The class body is basically a function that implicitly, at the end
# returns its locals and cannot have other return statements contained.
function_body.setBody(body)
temp_scope = provider.allocateTempScope("class_creation")
tmp_bases = provider.allocateTempVariable(temp_scope, "bases")
tmp_class_dict = provider.allocateTempVariable(temp_scope, "class_dict")
tmp_metaclass = provider.allocateTempVariable(temp_scope, "metaclass")
tmp_class = provider.allocateTempVariable(temp_scope, "class")
select_metaclass = ExpressionOutlineBody(provider=provider,
name="select_metaclass",
body=None,
source_ref=source_ref)
if node.bases:
tmp_base = select_metaclass.allocateTempVariable(temp_scope=None,
name="base")
statements = (
StatementAssignmentVariable(
variable=tmp_base,
source=ExpressionSubscriptLookup(
expression=ExpressionTempVariableRef(
variable=tmp_bases, source_ref=source_ref),
subscript=makeConstantRefNode(constant=0,
source_ref=source_ref,
user_provided=True),
source_ref=source_ref,
),
source_ref=source_ref,
),
makeTryFinallyStatement(
provider,
tried=StatementTry(
tried=makeStatementsSequenceFromStatement(
statement=StatementReturn(
expression=ExpressionAttributeLookup(
expression=ExpressionTempVariableRef(
variable=tmp_base, source_ref=source_ref),
attribute_name="__class__",
source_ref=source_ref,
),
source_ref=source_ref,
)),
except_handler=makeStatementsSequenceFromStatement(
statement=StatementReturn(
expression=ExpressionBuiltinType1(
value=ExpressionTempVariableRef(
variable=tmp_base, source_ref=source_ref),
source_ref=source_ref,
),
source_ref=source_ref,
)),
break_handler=None,
continue_handler=None,
return_handler=None,
source_ref=source_ref,
),
final=StatementReleaseVariable(variable=tmp_base,
source_ref=source_ref),
source_ref=source_ref,
public_exc=False,
),
)
else:
statements = (
StatementTry(
tried=makeStatementsSequenceFromStatement(
statement=StatementReturn(
# TODO: Should avoid checking __builtins__ for this.
expression=ExpressionVariableNameRef(
variable_name="__metaclass__",
provider=parent_module,
source_ref=source_ref,
),
source_ref=source_ref,
)),
except_handler=makeStatementsSequenceFromStatement(
statement=StatementReturn(
expression=ExpressionBuiltinAnonymousRef(
builtin_name="classobj", source_ref=source_ref),
source_ref=source_ref,
)),
break_handler=None,
continue_handler=None,
return_handler=None,
source_ref=source_ref,
), )
select_metaclass.setBody(
makeStatementsSequence(statements=statements,
allow_none=False,
source_ref=source_ref))
statements = [
StatementAssignmentVariable(
variable=tmp_bases,
source=makeExpressionMakeTupleOrConstant(
elements=buildNodeList(provider=provider,
nodes=node.bases,
source_ref=source_ref),
user_provided=True,
source_ref=source_ref,
),
source_ref=source_ref,
),
StatementAssignmentVariable(variable=tmp_class_dict,
source=function_body,
source_ref=source_ref),
StatementAssignmentVariable(
variable=tmp_metaclass,
source=ExpressionConditional(
condition=ExpressionDictOperationIn(
key=makeConstantRefNode(
constant="__metaclass__",
source_ref=source_ref,
user_provided=True,
),
dict_arg=ExpressionTempVariableRef(variable=tmp_class_dict,
source_ref=source_ref),
source_ref=source_ref,
),
expression_yes=ExpressionDictOperationGet(
dict_arg=ExpressionTempVariableRef(variable=tmp_class_dict,
source_ref=source_ref),
key=makeConstantRefNode(
constant="__metaclass__",
source_ref=source_ref,
user_provided=True,
),
source_ref=source_ref,
),
expression_no=select_metaclass,
source_ref=source_ref,
),
source_ref=source_ref,
),
StatementAssignmentVariable(
variable=tmp_class,
source=makeExpressionCall(
called=ExpressionTempVariableRef(variable=tmp_metaclass,
source_ref=source_ref),
args=makeExpressionMakeTuple(
elements=(
makeConstantRefNode(
constant=node.name,
source_ref=source_ref,
user_provided=True,
),
ExpressionTempVariableRef(variable=tmp_bases,
source_ref=source_ref),
ExpressionTempVariableRef(variable=tmp_class_dict,
source_ref=source_ref),
),
source_ref=source_ref,
),
kw=None,
source_ref=source_ref,
),
source_ref=source_ref,
),
]
for decorator in buildNodeList(provider, reversed(node.decorator_list),
source_ref):
statements.append(
StatementAssignmentVariable(
variable=tmp_class,
source=makeExpressionCall(
called=decorator,
args=makeExpressionMakeTuple(
elements=(ExpressionTempVariableRef(
variable=tmp_class, source_ref=source_ref), ),
source_ref=source_ref,
),
kw=None,
source_ref=decorator.getSourceReference(),
),
source_ref=decorator.getSourceReference(),
))
statements.append(
StatementAssignmentVariableName(
provider=provider,
variable_name=mangleName(node.name, provider),
source=ExpressionTempVariableRef(variable=tmp_class,
source_ref=source_ref),
source_ref=source_ref,
))
final = (
StatementReleaseVariable(variable=tmp_class, source_ref=source_ref),
StatementReleaseVariable(variable=tmp_bases, source_ref=source_ref),
StatementReleaseVariable(variable=tmp_class_dict,
source_ref=source_ref),
StatementReleaseVariable(variable=tmp_metaclass,
source_ref=source_ref),
)
return makeTryFinallyStatement(provider=function_body,
tried=statements,
final=final,
source_ref=source_ref)
def getClassBasesMroConversionHelper():
helper_name = "_mro_entries_conversion"
result = makeInternalHelperFunctionBody(name=helper_name,
parameters=ParameterSpec(
ps_name=helper_name,
ps_normal_args=("bases", ),
ps_list_star_arg=None,
ps_dict_star_arg=None,
ps_default_count=0,
ps_kw_only_args=()))
temp_scope = None
tmp_result_variable = result.allocateTempVariable(temp_scope, "list")
tmp_iter_variable = result.allocateTempVariable(temp_scope, "iter")
tmp_item_variable = result.allocateTempVariable(temp_scope, "base")
args_variable = result.getVariableForAssignment(variable_name="bases")
non_type_case = makeStatementConditional(
condition=ExpressionAttributeCheck(
object_arg=ExpressionTempVariableRef(
variable=tmp_item_variable, source_ref=internal_source_ref),
attribute_name="__mro_entries__",
source_ref=internal_source_ref),
yes_branch=StatementExpressionOnly(
expression=ExpressionListOperationExtend(
list_arg=ExpressionTempVariableRef(
variable=tmp_result_variable,
source_ref=internal_source_ref),
value=makeExpressionCall(
called=ExpressionAttributeLookup(
source=ExpressionTempVariableRef(
variable=tmp_item_variable,
source_ref=internal_source_ref),
attribute_name="__mro_entries__",
source_ref=internal_source_ref),
args=ExpressionMakeTuple(elements=(ExpressionVariableRef(
variable=args_variable,
source_ref=internal_source_ref), ),
source_ref=internal_source_ref),
kw=None,
source_ref=internal_source_ref),
source_ref=internal_source_ref),
source_ref=internal_source_ref),
no_branch=StatementListOperationAppend(
list_arg=ExpressionTempVariableRef(variable=tmp_result_variable,
source_ref=internal_source_ref),
value=ExpressionTempVariableRef(variable=tmp_item_variable,
source_ref=internal_source_ref),
source_ref=internal_source_ref),
source_ref=internal_source_ref)
type_case = StatementListOperationAppend(
list_arg=ExpressionTempVariableRef(variable=tmp_result_variable,
source_ref=internal_source_ref),
value=ExpressionTempVariableRef(variable=tmp_item_variable,
source_ref=internal_source_ref),
source_ref=internal_source_ref)
loop_body = makeStatementsSequenceFromStatements(
makeTryExceptSingleHandlerNode(
tried=StatementAssignmentVariable(
variable=tmp_item_variable,
source=ExpressionBuiltinNext1(value=ExpressionTempVariableRef(
variable=tmp_iter_variable,
source_ref=internal_source_ref),
source_ref=internal_source_ref),
source_ref=internal_source_ref),
exception_name="StopIteration",
handler_body=StatementLoopBreak(source_ref=internal_source_ref),
source_ref=internal_source_ref),
makeStatementConditional(condition=ExpressionBuiltinIsinstance(
instance=ExpressionTempVariableRef(variable=tmp_item_variable,
source_ref=internal_source_ref),
classes=makeConstantRefNode(constant=type,
source_ref=internal_source_ref),
source_ref=internal_source_ref),
yes_branch=type_case,
no_branch=non_type_case,
source_ref=internal_source_ref))
final = (
StatementReleaseVariable(variable=args_variable,
source_ref=internal_source_ref),
StatementReleaseVariable(variable=tmp_result_variable,
source_ref=internal_source_ref),
StatementReleaseVariable(variable=tmp_iter_variable,
source_ref=internal_source_ref),
StatementReleaseVariable(variable=tmp_item_variable,
source_ref=internal_source_ref),
)
tried = makeStatementsSequenceFromStatements(
StatementAssignmentVariable(variable=tmp_iter_variable,
source=ExpressionBuiltinIter1(
value=ExpressionVariableRef(
variable=args_variable,
source_ref=internal_source_ref),
source_ref=internal_source_ref),
source_ref=internal_source_ref),
StatementAssignmentVariable(variable=tmp_result_variable,
source=makeConstantRefNode(
constant=[],
source_ref=internal_source_ref),
source_ref=internal_source_ref),
StatementLoop(body=loop_body, source_ref=internal_source_ref),
StatementReturn(expression=ExpressionBuiltinTuple(
value=ExpressionTempVariableRef(variable=tmp_result_variable,
source_ref=internal_source_ref),
source_ref=internal_source_ref),
source_ref=internal_source_ref))
result.setBody(
makeStatementsSequenceFromStatement(
makeTryFinallyStatement(provider=result,
tried=tried,
final=final,
source_ref=internal_source_ref)))
return result
def buildClassNode3(provider, node, source_ref):
# Many variables, due to the huge re-formulation that is going on here,
# which just has the complexity and optimization checks:
# pylint: disable=I0021,too-many-branches,too-many-locals,too-many-statements
# This function is the Python3 special case with special re-formulation as
# according to developer manual.
class_statement_nodes, class_doc = extractDocFromBody(node)
# We need a scope for the temporary variables, and they might be closured.
temp_scope = provider.allocateTempScope(name="class_creation")
tmp_class_decl_dict = provider.allocateTempVariable(temp_scope=temp_scope,
name="class_decl_dict")
tmp_metaclass = provider.allocateTempVariable(temp_scope=temp_scope,
name="metaclass")
tmp_prepared = provider.allocateTempVariable(temp_scope=temp_scope,
name="prepared")
class_creation_function = ExpressionClassBody(provider=provider,
name=node.name,
doc=class_doc,
source_ref=source_ref)
class_variable = class_creation_function.getVariableForAssignment(
"__class__")
class_variable_ref = ExpressionVariableRef(variable=class_variable,
source_ref=source_ref)
parent_module = provider.getParentModule()
code_object = CodeObjectSpec(
co_name=node.name,
co_kind="Class",
co_varnames=(),
co_argcount=0,
co_kwonlyargcount=0,
co_has_starlist=False,
co_has_stardict=False,
co_filename=parent_module.getRunTimeFilename(),
co_lineno=source_ref.getLineNumber(),
future_spec=parent_module.getFutureSpec())
body = buildFrameNode(provider=class_creation_function,
nodes=class_statement_nodes,
code_object=code_object,
source_ref=source_ref)
source_ref_orig = source_ref
if body is not None:
# The frame guard has nothing to tell its line number to.
body.source_ref = source_ref
locals_scope = class_creation_function.getFunctionLocalsScope()
statements = [
StatementSetLocals(locals_scope=locals_scope,
new_locals=ExpressionTempVariableRef(
variable=tmp_prepared, source_ref=source_ref),
source_ref=source_ref),
StatementAssignmentVariableName(
provider=class_creation_function,
variable_name="__module__",
source=makeConstantRefNode(
constant=provider.getParentModule().getFullName(),
source_ref=source_ref,
user_provided=True),
source_ref=source_ref)
]
if class_doc is not None:
statements.append(
StatementAssignmentVariableName(provider=class_creation_function,
variable_name="__doc__",
source=makeConstantRefNode(
constant=class_doc,
source_ref=source_ref,
user_provided=True),
source_ref=source_ref))
# The "__qualname__" attribute is new in Python 3.3.
if python_version >= 300:
qualname = class_creation_function.getFunctionQualname()
if python_version < 340:
qualname_ref = makeConstantRefNode(constant=qualname,
source_ref=source_ref,
user_provided=True)
else:
qualname_ref = ExpressionFunctionQualnameRef(
function_body=class_creation_function,
source_ref=source_ref,
)
statements.append(
StatementLocalsDictOperationSet(locals_scope=locals_scope,
variable_name="__qualname__",
value=qualname_ref,
source_ref=source_ref))
if python_version >= 340:
qualname_assign = statements[-1]
if python_version >= 360 and \
class_creation_function.needsAnnotationsDictionary():
statements.append(
StatementLocalsDictOperationSet(locals_scope=locals_scope,
variable_name="__annotations__",
value=makeConstantRefNode(
constant={},
source_ref=source_ref,
user_provided=True),
source_ref=source_ref))
statements.append(body)
if node.bases:
tmp_bases = provider.allocateTempVariable(temp_scope=temp_scope,
name="bases")
if python_version >= 370:
tmp_bases_orig = provider.allocateTempVariable(
temp_scope=temp_scope, name="bases_orig")
def makeBasesRef():
return ExpressionTempVariableRef(variable=tmp_bases,
source_ref=source_ref)
else:
def makeBasesRef():
return makeConstantRefNode(constant=(), source_ref=source_ref)
if python_version >= 370 and node.bases:
statements.append(
makeStatementConditional(
condition=makeComparisonExpression(
comparator="NotEq",
left=ExpressionTempVariableRef(variable=tmp_bases,
source_ref=source_ref),
right=ExpressionTempVariableRef(variable=tmp_bases_orig,
source_ref=source_ref),
source_ref=source_ref),
yes_branch=StatementLocalsDictOperationSet(
locals_scope=locals_scope,
variable_name="__orig_bases__",
value=ExpressionTempVariableRef(variable=tmp_bases_orig,
source_ref=source_ref),
source_ref=source_ref),
no_branch=None,
source_ref=source_ref))
statements += [
StatementAssignmentVariable(
variable=class_variable,
source=makeExpressionCall(
called=ExpressionTempVariableRef(variable=tmp_metaclass,
source_ref=source_ref),
args=makeSequenceCreationOrConstant(
sequence_kind="tuple",
elements=(makeConstantRefNode(constant=node.name,
source_ref=source_ref,
user_provided=True),
makeBasesRef(),
ExpressionBuiltinLocalsRef(
locals_scope=locals_scope,
source_ref=source_ref)),
source_ref=source_ref),
kw=ExpressionTempVariableRef(variable=tmp_class_decl_dict,
source_ref=source_ref),
source_ref=source_ref),
source_ref=source_ref),
StatementReturn(expression=class_variable_ref, source_ref=source_ref)
]
body = makeStatementsSequenceFromStatement(
statement=makeTryFinallyStatement(
provider=class_creation_function,
tried=mergeStatements(statements, True),
final=StatementReleaseLocals(locals_scope=locals_scope,
source_ref=source_ref),
source_ref=source_ref))
# The class body is basically a function that implicitly, at the end
# returns its locals and cannot have other return statements contained.
class_creation_function.setBody(body)
# The class body is basically a function that implicitly, at the end
# returns its created class and cannot have other return statements
# contained.
decorated_body = class_creation_function
for decorator in buildNodeList(provider, reversed(node.decorator_list),
source_ref):
decorated_body = makeExpressionCall(
called=decorator,
args=ExpressionMakeTuple(elements=(decorated_body, ),
source_ref=source_ref),
kw=None,
source_ref=decorator.getSourceReference())
if node.keywords and node.keywords[-1].arg is None:
keywords = node.keywords[:-1]
else:
keywords = node.keywords
statements = []
if node.bases:
statements.append(
StatementAssignmentVariable(
variable=tmp_bases if python_version < 370 else tmp_bases_orig,
source=buildTupleCreationNode(provider=provider,
elements=node.bases,
source_ref=source_ref),
source_ref=source_ref))
if python_version >= 370:
bases_conversion = ExpressionFunctionCall(
function=ExpressionFunctionCreation(
function_ref=ExpressionFunctionRef(
function_body=getClassBasesMroConversionHelper(),
source_ref=source_ref),
defaults=(),
kw_defaults=None,
annotations=None,
source_ref=source_ref),
values=(ExpressionTempVariableRef(variable=tmp_bases_orig,
source_ref=source_ref), ),
source_ref=source_ref,
)
statements.append(
StatementAssignmentVariable(variable=tmp_bases,
source=bases_conversion,
source_ref=source_ref))
statements.append(
StatementAssignmentVariable(
variable=tmp_class_decl_dict,
source=makeDictCreationOrConstant2(
keys=[keyword.arg for keyword in keywords],
values=[
buildNode(provider, keyword.value, source_ref)
for keyword in keywords
],
source_ref=source_ref),
source_ref=source_ref))
if node.keywords and node.keywords[-1].arg is None:
statements.append(
StatementDictOperationUpdate(
dict_arg=ExpressionVariableRef(variable=tmp_class_decl_dict,
source_ref=source_ref),
value=buildNode(provider, node.keywords[-1].value, source_ref),
source_ref=source_ref))
# Check if there are bases, and if there are, go with the type of the
# first base class as a metaclass unless it was specified in the class
# decl dict of course.
if node.bases:
unspecified_metaclass_expression = ExpressionBuiltinType1(
value=ExpressionSubscriptLookup(
subscribed=ExpressionTempVariableRef(variable=tmp_bases,
source_ref=source_ref),
subscript=makeConstantRefNode(constant=0,
source_ref=source_ref,
user_provided=True),
source_ref=source_ref),
source_ref=source_ref)
# Might become empty behind our back during conversion, therefore make the
# check at run time for 3.7 or higher.
if python_version >= 370:
unspecified_metaclass_expression = ExpressionConditional(
condition=ExpressionTempVariableRef(variable=tmp_bases,
source_ref=source_ref),
expression_yes=unspecified_metaclass_expression,
expression_no=makeExpressionBuiltinRef(builtin_name="type",
source_ref=source_ref),
source_ref=source_ref)
else:
unspecified_metaclass_expression = makeExpressionBuiltinRef(
builtin_name="type", source_ref=source_ref)
call_prepare = StatementAssignmentVariable(
variable=tmp_prepared,
source=makeExpressionCall(
called=ExpressionAttributeLookup(source=ExpressionTempVariableRef(
variable=tmp_metaclass, source_ref=source_ref),
attribute_name="__prepare__",
source_ref=source_ref),
args=ExpressionMakeTuple(elements=(
makeConstantRefNode(constant=node.name,
source_ref=source_ref,
user_provided=True),
makeBasesRef(),
),
source_ref=source_ref),
kw=ExpressionTempVariableRef(variable=tmp_class_decl_dict,
source_ref=source_ref),
source_ref=source_ref),
source_ref=source_ref)
if python_version >= 360:
call_prepare = makeStatementsSequenceFromStatements(
call_prepare,
makeStatementConditional(
condition=ExpressionAttributeCheck(
object_arg=ExpressionTempVariableRef(
variable=tmp_prepared, source_ref=source_ref),
attribute_name="__getitem__",
source_ref=source_ref),
yes_branch=None,
no_branch=makeRaiseExceptionExpressionFromTemplate(
exception_type="TypeError",
template="%s.__prepare__() must return a mapping, not %s",
template_args=(
ExpressionBuiltinGetattr(
object_arg=ExpressionTempVariableRef(
variable=tmp_metaclass, source_ref=source_ref),
name=makeConstantRefNode(constant="__name__",
source_ref=source_ref),
default=makeConstantRefNode(constant="<metaclass>",
source_ref=source_ref),
source_ref=source_ref),
ExpressionAttributeLookup(
source=ExpressionBuiltinType1(
value=ExpressionTempVariableRef(
variable=tmp_prepared,
source_ref=source_ref),
source_ref=source_ref),
attribute_name="__name__",
source_ref=source_ref),
),
source_ref=source_ref).asStatement(),
source_ref=source_ref))
statements += [
StatementAssignmentVariable(
variable=tmp_metaclass,
source=ExpressionSelectMetaclass(metaclass=ExpressionConditional(
condition=ExpressionDictOperationIn(
key=makeConstantRefNode(constant="metaclass",
source_ref=source_ref,
user_provided=True),
dict_arg=ExpressionTempVariableRef(
variable=tmp_class_decl_dict, source_ref=source_ref),
source_ref=source_ref),
expression_yes=ExpressionDictOperationGet(
dict_arg=ExpressionTempVariableRef(
variable=tmp_class_decl_dict, source_ref=source_ref),
key=makeConstantRefNode(constant="metaclass",
source_ref=source_ref,
user_provided=True),
source_ref=source_ref),
expression_no=unspecified_metaclass_expression,
source_ref=source_ref),
bases=makeBasesRef(),
source_ref=source_ref),
source_ref=source_ref_orig),
makeStatementConditional(condition=ExpressionDictOperationIn(
key=makeConstantRefNode(constant="metaclass",
source_ref=source_ref,
user_provided=True),
dict_arg=ExpressionTempVariableRef(variable=tmp_class_decl_dict,
source_ref=source_ref),
source_ref=source_ref),
no_branch=None,
yes_branch=StatementDictOperationRemove(
dict_arg=ExpressionTempVariableRef(
variable=tmp_class_decl_dict,
source_ref=source_ref),
key=makeConstantRefNode(
constant="metaclass",
source_ref=source_ref,
user_provided=True),
source_ref=source_ref),
source_ref=source_ref),
makeStatementConditional(condition=ExpressionAttributeCheck(
object_arg=ExpressionTempVariableRef(variable=tmp_metaclass,
source_ref=source_ref),
attribute_name="__prepare__",
source_ref=source_ref),
yes_branch=call_prepare,
no_branch=StatementAssignmentVariable(
variable=tmp_prepared,
source=makeConstantRefNode(
constant={},
source_ref=source_ref,
user_provided=True),
source_ref=source_ref),
source_ref=source_ref),
StatementAssignmentVariableName(provider=provider,
variable_name=mangleName(
node.name, provider),
source=decorated_body,
source_ref=source_ref)
]
if python_version >= 340:
class_creation_function.qualname_setup = node.name, qualname_assign
final = [tmp_class_decl_dict, tmp_metaclass, tmp_prepared]
if node.bases:
final.insert(0, tmp_bases)
if python_version >= 370:
final.insert(0, tmp_bases_orig)
return makeTryFinallyStatement(
provider=provider,
tried=statements,
final=tuple(
StatementReleaseVariable(variable=variable, source_ref=source_ref)
for variable in final),
source_ref=source_ref)
def buildAttributeNode(provider, node, source_ref):
return ExpressionAttributeLookup(expression=buildNode(
provider, node.value, source_ref),
attribute_name=node.attr,
source_ref=source_ref)
def getDictUnpackingHelper():
helper_name = "_unpack_dict"
result = ExpressionFunctionBody(provider=getInternalModule(),
name=helper_name,
doc=None,
parameters=ParameterSpec(
ps_name=helper_name,
ps_normal_args=(),
ps_list_star_arg="args",
ps_dict_star_arg=None,
ps_default_count=0,
ps_kw_only_args=()),
flags=set(),
source_ref=internal_source_ref)
temp_scope = None
tmp_result_variable = result.allocateTempVariable(temp_scope, "dict")
tmp_iter_variable = result.allocateTempVariable(temp_scope, "iter")
tmp_item_variable = result.allocateTempVariable(temp_scope, "keys")
loop_body = makeStatementsSequenceFromStatements(
makeTryExceptSingleHandlerNode(
tried=StatementAssignmentVariable(
variable_ref=ExpressionTargetTempVariableRef(
variable=tmp_item_variable,
source_ref=internal_source_ref),
source=ExpressionBuiltinNext1(value=ExpressionTempVariableRef(
variable=tmp_iter_variable,
source_ref=internal_source_ref),
source_ref=internal_source_ref),
source_ref=internal_source_ref),
exception_name="StopIteration",
handler_body=StatementLoopBreak(source_ref=internal_source_ref),
source_ref=internal_source_ref),
makeTryExceptSingleHandlerNode(
tried=StatementDictOperationUpdate(
dict_arg=ExpressionTempVariableRef(
variable=tmp_result_variable,
source_ref=internal_source_ref),
value=ExpressionTempVariableRef(
variable=tmp_item_variable,
source_ref=internal_source_ref),
source_ref=internal_source_ref),
exception_name="AttributeError",
handler_body=StatementRaiseException(
exception_type=ExpressionBuiltinMakeException(
exception_name="TypeError",
args=(makeBinaryOperationNode(
operator="Mod",
left=makeConstantRefNode(
constant="""\
'%s' object is not a mapping""",
source_ref=internal_source_ref,
user_provided=True),
right=ExpressionMakeTuple(
elements=(ExpressionAttributeLookup(
source=ExpressionBuiltinType1(
value=ExpressionTempVariableRef(
variable=tmp_item_variable,
source_ref=internal_source_ref),
source_ref=internal_source_ref),
attribute_name="__name__",
source_ref=internal_source_ref), ),
source_ref=internal_source_ref),
source_ref=internal_source_ref), ),
source_ref=internal_source_ref),
exception_value=None,
exception_trace=None,
exception_cause=None,
source_ref=internal_source_ref),
source_ref=internal_source_ref))
args_variable = result.getVariableForAssignment(variable_name="args")
final = (
StatementReleaseVariable(variable=tmp_result_variable,
source_ref=internal_source_ref),
StatementReleaseVariable(variable=tmp_iter_variable,
source_ref=internal_source_ref),
StatementReleaseVariable(variable=tmp_item_variable,
source_ref=internal_source_ref),
)
tried = makeStatementsSequenceFromStatements(
StatementAssignmentVariable(
variable_ref=ExpressionTargetTempVariableRef(
variable=tmp_iter_variable, source_ref=internal_source_ref),
source=ExpressionBuiltinIter1(value=ExpressionVariableRef(
variable_name="args",
variable=args_variable,
source_ref=internal_source_ref),
source_ref=internal_source_ref),
source_ref=internal_source_ref),
StatementAssignmentVariable(
variable_ref=ExpressionTargetTempVariableRef(
variable=tmp_result_variable, source_ref=internal_source_ref),
source=makeConstantRefNode(constant={},
source_ref=internal_source_ref),
source_ref=internal_source_ref),
StatementLoop(body=loop_body, source_ref=internal_source_ref),
StatementReturn(expression=ExpressionTempVariableRef(
variable=tmp_result_variable, source_ref=internal_source_ref),
source_ref=internal_source_ref))
result.setBody(
makeStatementsSequenceFromStatement(
makeTryFinallyStatement(provider=result,
tried=tried,
final=final,
source_ref=internal_source_ref)))
return result
def _buildClassNode3(provider, node, source_ref):
# Many variables, due to the huge re-formulation that is going on here,
# which just has the complexity, pylint: disable=R0914
# This function is the Python3 special case with special re-formulation as
# according to developer manual.
class_statements, class_doc = extractDocFromBody(node)
# We need a scope for the temporary variables, and they might be closured.
temp_scope = provider.allocateTempScope(name="class_creation",
allow_closure=True)
tmp_bases = provider.allocateTempVariable(temp_scope=temp_scope,
name="bases")
tmp_class_decl_dict = provider.allocateTempVariable(temp_scope=temp_scope,
name="class_decl_dict")
tmp_metaclass = provider.allocateTempVariable(temp_scope=temp_scope,
name="metaclass")
tmp_prepared = provider.allocateTempVariable(temp_scope=temp_scope,
name="prepared")
class_creation_function = ExpressionFunctionBody(
provider=provider,
is_class=True,
parameters=make_class_parameters,
name=node.name,
doc=class_doc,
source_ref=source_ref)
# Hack: This allows some APIs to work although this is not yet officially a
# child yet.
class_creation_function.parent = provider
body = buildStatementsNode(provider=class_creation_function,
nodes=class_statements,
frame=True,
source_ref=source_ref)
source_ref_orig = source_ref
if body is not None:
# The frame guard has nothing to tell its line number to.
body.source_ref = source_ref
module_variable = class_creation_function.getVariableForAssignment(
"__module__")
statements = [
StatementSetLocals(new_locals=ExpressionTempVariableRef(
variable=tmp_prepared.makeReference(provider),
source_ref=source_ref),
source_ref=source_ref),
StatementAssignmentVariable(
variable_ref=ExpressionTargetVariableRef(
variable_name="__module__",
variable=module_variable,
source_ref=source_ref),
source=ExpressionConstantRef(
constant=provider.getParentModule().getFullName(),
source_ref=source_ref,
user_provided=True),
source_ref=source_ref)
]
if class_doc is not None:
doc_variable = class_creation_function.getVariableForAssignment(
"__doc__")
statements.append(
StatementAssignmentVariable(
variable_ref=ExpressionTargetVariableRef(
variable_name="__doc__",
variable=doc_variable,
source_ref=source_ref),
source=ExpressionConstantRef(constant=class_doc,
source_ref=source_ref,
user_provided=True),
source_ref=source_ref))
# The "__qualname__" attribute is new in Python 3.3.
if Utils.python_version >= 330:
qualname = class_creation_function.getFunctionQualname()
qualname_variable = class_creation_function.getVariableForAssignment(
"__qualname__")
statements.append(
StatementAssignmentVariable(
variable_ref=ExpressionTargetVariableRef(
variable_name="__qualname__",
variable=qualname_variable,
source_ref=source_ref),
source=ExpressionConstantRef(constant=qualname,
source_ref=source_ref,
user_provided=True),
source_ref=source_ref))
if Utils.python_version >= 340 and False: # TODO: Temporarily reverted:
tmp_class = class_creation_function.allocateTempVariable(
temp_scope=None, name="__class__")
class_target_variable_ref = ExpressionTargetTempVariableRef(
variable=tmp_class.makeReference(class_creation_function),
source_ref=source_ref)
class_variable_ref = ExpressionTempVariableRef(
variable=tmp_class.makeReference(class_creation_function),
source_ref=source_ref)
else:
class_variable = class_creation_function.getVariableForAssignment(
"__class__")
class_target_variable_ref = ExpressionTargetVariableRef(
variable_name="__class__",
variable=class_variable,
source_ref=source_ref)
class_variable_ref = ExpressionVariableRef(variable_name="__class__",
variable=class_variable,
source_ref=source_ref)
statements += [
body,
StatementAssignmentVariable(
variable_ref=class_target_variable_ref,
source=ExpressionCall(
called=ExpressionTempVariableRef(
variable=tmp_metaclass.makeReference(provider),
source_ref=source_ref),
args=makeSequenceCreationOrConstant(
sequence_kind="tuple",
elements=(ExpressionConstantRef(constant=node.name,
source_ref=source_ref,
user_provided=True),
ExpressionTempVariableRef(
variable=tmp_bases.makeReference(provider),
source_ref=source_ref),
ExpressionBuiltinLocals(source_ref=source_ref)),
source_ref=source_ref),
kw=ExpressionTempVariableRef(
variable=tmp_class_decl_dict.makeReference(provider),
source_ref=source_ref),
source_ref=source_ref),
source_ref=source_ref),
StatementReturn(expression=class_variable_ref, source_ref=source_ref)
]
body = makeStatementsSequence(statements=statements,
allow_none=True,
source_ref=source_ref)
# The class body is basically a function that implicitely, at the end
# returns its locals and cannot have other return statements contained.
class_creation_function.setBody(body)
# The class body is basically a function that implicitely, at the end
# returns its created class and cannot have other return statements
# contained.
decorated_body = ExpressionFunctionCall(
function=ExpressionFunctionCreation(function_ref=ExpressionFunctionRef(
function_body=class_creation_function, source_ref=source_ref),
defaults=(),
kw_defaults=None,
annotations=None,
source_ref=source_ref),
values=(),
source_ref=source_ref)
for decorator in buildNodeList(provider, reversed(node.decorator_list),
source_ref):
decorated_body = ExpressionCallNoKeywords(
called=decorator,
args=ExpressionMakeTuple(elements=(decorated_body, ),
source_ref=source_ref),
source_ref=decorator.getSourceReference())
statements = (
StatementAssignmentVariable(
variable_ref=ExpressionTargetTempVariableRef(
variable=tmp_bases.makeReference(provider),
source_ref=source_ref),
source=makeSequenceCreationOrConstant(sequence_kind="tuple",
elements=buildNodeList(
provider, node.bases,
source_ref),
source_ref=source_ref),
source_ref=source_ref),
StatementAssignmentVariable(
variable_ref=ExpressionTargetTempVariableRef(
variable=tmp_class_decl_dict.makeReference(provider),
source_ref=source_ref),
source=makeDictCreationOrConstant(keys=[
ExpressionConstantRef(constant=keyword.arg,
source_ref=source_ref,
user_provided=True)
for keyword in node.keywords
],
values=[
buildNode(
provider, keyword.value,
source_ref)
for keyword in node.keywords
],
lazy_order=False,
source_ref=source_ref),
source_ref=source_ref),
StatementAssignmentVariable(
variable_ref=ExpressionTargetTempVariableRef(
variable=tmp_metaclass.makeReference(provider),
source_ref=source_ref),
source=ExpressionSelectMetaclass(metaclass=ExpressionConditional(
condition=ExpressionComparison(
comparator="In",
left=ExpressionConstantRef(constant="metaclass",
source_ref=source_ref,
user_provided=True),
right=ExpressionTempVariableRef(
variable=tmp_class_decl_dict.makeReference(provider),
source_ref=source_ref),
source_ref=source_ref),
yes_expression=ExpressionDictOperationGet(
dicte=ExpressionTempVariableRef(
variable=tmp_class_decl_dict.makeReference(provider),
source_ref=source_ref),
key=ExpressionConstantRef(constant="metaclass",
source_ref=source_ref,
user_provided=True),
source_ref=source_ref),
no_expression=ExpressionConditional(
condition=ExpressionTempVariableRef(
variable=tmp_bases.makeReference(provider),
source_ref=source_ref),
no_expression=ExpressionBuiltinRef(builtin_name="type",
source_ref=source_ref),
yes_expression=ExpressionBuiltinType1(
value=ExpressionSubscriptLookup(
expression=ExpressionTempVariableRef(
variable=tmp_bases.makeReference(provider),
source_ref=source_ref),
subscript=ExpressionConstantRef(
constant=0,
source_ref=source_ref,
user_provided=True),
source_ref=source_ref),
source_ref=source_ref),
source_ref=source_ref),
source_ref=source_ref),
bases=ExpressionTempVariableRef(
variable=tmp_bases.
makeReference(provider),
source_ref=source_ref),
source_ref=source_ref),
source_ref=source_ref_orig),
StatementConditional(
condition=ExpressionComparison(
comparator="In",
left=ExpressionConstantRef(constant="metaclass",
source_ref=source_ref,
user_provided=True),
right=ExpressionTempVariableRef(
variable=tmp_class_decl_dict.makeReference(provider),
source_ref=source_ref),
source_ref=source_ref),
no_branch=None,
yes_branch=makeStatementsSequenceFromStatement(
statement=StatementDictOperationRemove(
dicte=ExpressionTempVariableRef(
variable=tmp_class_decl_dict.makeReference(provider),
source_ref=source_ref),
key=ExpressionConstantRef(constant="metaclass",
source_ref=source_ref,
user_provided=True),
source_ref=source_ref)),
source_ref=source_ref),
StatementAssignmentVariable(
variable_ref=ExpressionTargetTempVariableRef(
variable=tmp_prepared.makeReference(provider),
source_ref=source_ref),
source=ExpressionConditional(
condition=ExpressionBuiltinHasattr(
object=ExpressionTempVariableRef(
variable=tmp_metaclass.makeReference(provider),
source_ref=source_ref),
name=ExpressionConstantRef(constant="__prepare__",
source_ref=source_ref,
user_provided=True),
source_ref=source_ref),
no_expression=ExpressionConstantRef(constant={},
source_ref=source_ref,
user_provided=True),
yes_expression=ExpressionCall(
called=ExpressionAttributeLookup(
expression=ExpressionTempVariableRef(
variable=tmp_metaclass.makeReference(provider),
source_ref=source_ref),
attribute_name="__prepare__",
source_ref=source_ref),
args=ExpressionMakeTuple(elements=(
ExpressionConstantRef(constant=node.name,
source_ref=source_ref,
user_provided=True),
ExpressionTempVariableRef(
variable=tmp_bases.makeReference(provider),
source_ref=source_ref)),
source_ref=source_ref),
kw=ExpressionTempVariableRef(
variable=tmp_class_decl_dict.makeReference(provider),
source_ref=source_ref),
source_ref=source_ref),
source_ref=source_ref),
source_ref=source_ref),
StatementAssignmentVariable(variable_ref=ExpressionTargetVariableRef(
variable_name=node.name, source_ref=source_ref),
source=decorated_body,
source_ref=source_ref),
)
final = (StatementDelVariable(variable_ref=ExpressionTargetTempVariableRef(
variable=tmp_bases.makeReference(provider), source_ref=source_ref),
tolerant=True,
source_ref=source_ref),
StatementDelVariable(variable_ref=ExpressionTargetTempVariableRef(
variable=tmp_class_decl_dict.makeReference(provider),
source_ref=source_ref),
tolerant=True,
source_ref=source_ref),
StatementDelVariable(variable_ref=ExpressionTargetTempVariableRef(
variable=tmp_metaclass.makeReference(provider),
source_ref=source_ref),
tolerant=True,
source_ref=source_ref),
StatementDelVariable(variable_ref=ExpressionTargetTempVariableRef(
variable=tmp_prepared.makeReference(provider),
source_ref=source_ref),
tolerant=True,
source_ref=source_ref))
return makeTryFinallyStatement(tried=statements,
final=final,
source_ref=source_ref)
def _buildClassNode3(provider, node, source_ref):
# Many variables, due to the huge re-formulation that is going on here, which just has
# the complexity, pylint: disable=R0914
# This function is the Python3 special case with special re-formulation as according
# to developer manual.
class_statements, class_doc = extractDocFromBody(node)
# The result will be a temp block that holds the temporary variables.
result = StatementTempBlock(source_ref=source_ref)
tmp_bases = result.getTempVariable("bases")
tmp_class_decl_dict = result.getTempVariable("class_decl_dict")
tmp_metaclass = result.getTempVariable("metaclass")
tmp_prepared = result.getTempVariable("prepared")
class_creation_function = ExpressionFunctionBody(
provider=provider,
is_class=True,
parameters=make_class_parameters,
name=node.name,
doc=class_doc,
source_ref=source_ref)
# Hack:
class_creation_function.parent = provider
body = buildStatementsNode(provider=class_creation_function,
nodes=class_statements,
frame=True,
source_ref=source_ref)
if body is not None:
# The frame guard has nothing to tell its line number to.
body.source_ref = source_ref.atInternal()
statements = [
StatementSetLocals(new_locals=ExpressionTempVariableRef(
variable=tmp_prepared.makeReference(result),
source_ref=source_ref),
source_ref=source_ref.atInternal()),
StatementAssignmentVariable(
variable_ref=ExpressionTargetVariableRef(
variable_name="__module__", source_ref=source_ref),
source=ExpressionConstantRef(
constant=provider.getParentModule().getName(),
source_ref=source_ref),
source_ref=source_ref.atInternal())
]
if class_doc is not None:
statements.append(
StatementAssignmentVariable(
variable_ref=ExpressionTargetVariableRef(
variable_name="__doc__", source_ref=source_ref),
source=ExpressionConstantRef(constant=class_doc,
source_ref=source_ref),
source_ref=source_ref.atInternal()))
if Utils.python_version >= 330:
if provider.isExpressionFunctionBody():
qualname = provider.getName() + ".<locals>." + node.name
else:
qualname = node.name
statements.append(
StatementAssignmentVariable(
variable_ref=ExpressionTargetVariableRef(
variable_name="__qualname__", source_ref=source_ref),
source=ExpressionConstantRef(constant=qualname,
source_ref=source_ref),
source_ref=source_ref.atInternal()))
statements += [
body,
StatementAssignmentVariable(
variable_ref=ExpressionTargetVariableRef(variable_name="__class__",
source_ref=source_ref),
source=ExpressionCall(
called=ExpressionTempVariableRef(
variable=tmp_metaclass.makeReference(result),
source_ref=source_ref),
args=ExpressionMakeTuple(
elements=(ExpressionConstantRef(constant=node.name,
source_ref=source_ref),
ExpressionTempVariableRef(
variable=tmp_bases.makeReference(result),
source_ref=source_ref),
ExpressionBuiltinLocals(source_ref=source_ref)),
source_ref=source_ref),
kw=ExpressionTempVariableRef(
variable=tmp_class_decl_dict.makeReference(result),
source_ref=source_ref),
source_ref=source_ref),
source_ref=source_ref.atInternal()),
StatementReturn(expression=ExpressionVariableRef(
variable_name="__class__", source_ref=source_ref),
source_ref=source_ref.atInternal())
]
body = makeStatementsSequence(statements=statements,
allow_none=True,
source_ref=source_ref)
# The class body is basically a function that implicitely, at the end returns its
# locals and cannot have other return statements contained.
class_creation_function.setBody(body)
# The class body is basically a function that implicitely, at the end returns its
# created class and cannot have other return statements contained.
decorated_body = ExpressionFunctionCall(
function=ExpressionFunctionCreation(function_ref=ExpressionFunctionRef(
function_body=class_creation_function, source_ref=source_ref),
defaults=(),
kw_defaults=None,
annotations=None,
source_ref=source_ref),
values=(),
source_ref=source_ref)
for decorator in buildNodeList(provider, reversed(node.decorator_list),
source_ref):
decorated_body = ExpressionCallNoKeywords(
called=decorator,
args=ExpressionMakeTuple(elements=(decorated_body, ),
source_ref=source_ref),
source_ref=decorator.getSourceReference())
statements = [
StatementAssignmentVariable(
variable_ref=ExpressionTargetTempVariableRef(
variable=tmp_bases.makeReference(result),
source_ref=source_ref),
source=ExpressionMakeTuple(elements=buildNodeList(
provider, node.bases, source_ref),
source_ref=source_ref),
source_ref=source_ref),
StatementAssignmentVariable(
variable_ref=ExpressionTargetTempVariableRef(
variable=tmp_class_decl_dict.makeReference(result),
source_ref=source_ref),
source=ExpressionMakeDict(pairs=[
ExpressionKeyValuePair(
key=ExpressionConstantRef(constant=keyword.arg,
source_ref=source_ref),
value=buildNode(provider, keyword.value, source_ref),
source_ref=source_ref) for keyword in node.keywords
],
source_ref=source_ref),
source_ref=source_ref),
StatementAssignmentVariable(
variable_ref=ExpressionTargetTempVariableRef(
variable=tmp_metaclass.makeReference(result),
source_ref=source_ref),
source=ExpressionSelectMetaclass(
metaclass=ExpressionConditional(
condition=ExpressionComparison(
comparator="In",
left=ExpressionConstantRef(constant="metaclass",
source_ref=source_ref),
right=ExpressionTempVariableRef(
variable=tmp_class_decl_dict.makeReference(result),
source_ref=source_ref),
source_ref=source_ref),
yes_expression=ExpressionDictOperationGet(
dicte=ExpressionTempVariableRef(
variable=tmp_class_decl_dict.makeReference(result),
source_ref=source_ref),
key=ExpressionConstantRef(constant="metaclass",
source_ref=source_ref),
source_ref=source_ref),
no_expression=ExpressionConditional(
condition=ExpressionTempVariableRef(
variable=tmp_bases.makeReference(result),
source_ref=source_ref),
no_expression=ExpressionBuiltinRef(
builtin_name="type", source_ref=source_ref),
yes_expression=ExpressionBuiltinType1(
value=ExpressionSubscriptLookup(
expression=ExpressionTempVariableRef(
variable=tmp_bases.makeReference(result),
source_ref=source_ref),
subscript=ExpressionConstantRef(
constant=0, source_ref=source_ref),
source_ref=source_ref),
source_ref=source_ref),
source_ref=source_ref),
source_ref=source_ref),
bases=ExpressionTempVariableRef(
variable=tmp_bases.makeReference(result),
source_ref=source_ref),
source_ref=source_ref),
source_ref=source_ref),
StatementConditional(
condition=ExpressionComparison(
comparator="In",
left=ExpressionConstantRef(constant="metaclass",
source_ref=source_ref),
right=ExpressionTempVariableRef(
variable=tmp_class_decl_dict.makeReference(result),
source_ref=source_ref),
source_ref=source_ref),
no_branch=None,
yes_branch=makeStatementsSequenceFromStatement(
statement=StatementDictOperationRemove(
dicte=ExpressionTempVariableRef(
variable=tmp_class_decl_dict.makeReference(result),
source_ref=source_ref),
key=ExpressionConstantRef(constant="metaclass",
source_ref=source_ref),
source_ref=source_ref)),
source_ref=source_ref),
StatementAssignmentVariable(
variable_ref=ExpressionTargetTempVariableRef(
variable=tmp_prepared.makeReference(result),
source_ref=source_ref),
source=ExpressionConditional(
condition=ExpressionBuiltinHasattr(
object=ExpressionTempVariableRef(
variable=tmp_metaclass.makeReference(result),
source_ref=source_ref),
name=ExpressionConstantRef(constant="__prepare__",
source_ref=source_ref),
source_ref=source_ref),
no_expression=ExpressionConstantRef(constant={},
source_ref=source_ref),
yes_expression=ExpressionCall(
called=ExpressionAttributeLookup(
expression=ExpressionTempVariableRef(
variable=tmp_metaclass.makeReference(result),
source_ref=source_ref),
attribute_name="__prepare__",
source_ref=source_ref),
args=ExpressionMakeTuple(
elements=(ExpressionConstantRef(constant=node.name,
source_ref=source_ref),
ExpressionTempVariableRef(
variable=tmp_bases.makeReference(result),
source_ref=source_ref)),
source_ref=source_ref),
kw=ExpressionTempVariableRef(
variable=tmp_class_decl_dict.makeReference(result),
source_ref=source_ref),
source_ref=source_ref),
source_ref=source_ref),
source_ref=source_ref),
StatementAssignmentVariable(variable_ref=ExpressionTargetVariableRef(
variable_name=node.name, source_ref=source_ref),
source=decorated_body,
source_ref=source_ref)
]
result.setBody(
StatementsSequence(statements=statements, source_ref=source_ref))
return result
def buildExecNode(provider, node, source_ref):
# "exec" statements, should only occur with Python2.
# This is using many variables, due to the many details this is
# dealing with. The locals and globals need to be dealt with in
# temporary variables, and we need handling of indicators, so
# that is just the complexity, pylint: disable=R0914
exec_globals = node.globals
exec_locals = node.locals
body = node.body
orig_globals = exec_globals
# Handle exec(a,b,c) to be same as exec a, b, c
if exec_locals is None and exec_globals is None and \
getKind(body) == "Tuple":
parts = body.elts
body = parts[0]
if len(parts) > 1:
exec_globals = parts[1]
if len(parts) > 2:
exec_locals = parts[2]
else:
return StatementRaiseException(
exception_type=ExpressionBuiltinExceptionRef(
exception_name="TypeError", source_ref=source_ref),
exception_value=ExpressionConstantRef(constant="""\
exec: arg 1 must be a string, file, or code object""",
source_ref=source_ref),
exception_trace=None,
exception_cause=None,
source_ref=source_ref)
if provider.isExpressionFunctionBody():
provider.markAsExecContaining()
if orig_globals is None:
provider.markAsUnqualifiedExecContaining(source_ref)
temp_scope = provider.allocateTempScope("exec")
locals_value = buildNode(provider, exec_locals, source_ref, True)
if locals_value is None:
locals_value = ExpressionConstantRef(constant=None,
source_ref=source_ref)
globals_value = buildNode(provider, exec_globals, source_ref, True)
if globals_value is None:
globals_value = ExpressionConstantRef(constant=None,
source_ref=source_ref)
source_code = buildNode(provider, body, source_ref)
source_variable = provider.allocateTempVariable(temp_scope=temp_scope,
name="exec_source")
globals_keeper_variable = provider.allocateTempVariable(
temp_scope=temp_scope, name="globals")
locals_keeper_variable = provider.allocateTempVariable(
temp_scope=temp_scope, name="locals")
plain_indicator_variable = provider.allocateTempVariable(
temp_scope=temp_scope, name="plain")
tried = makeStatementsSequenceFromStatements(
# First evaluate the source code expressions.
StatementAssignmentVariable(
variable_ref=ExpressionTargetTempVariableRef(
variable=source_variable, source_ref=source_ref),
source=source_code,
source_ref=source_ref),
# Assign globals and locals temporary the values given, then fix it
# up, taking note in the "plain" temporary variable, if it was an
# "exec" statement with None arguments, in which case the copy back
# will be necessary.
StatementAssignmentVariable(
variable_ref=ExpressionTargetTempVariableRef(
variable=globals_keeper_variable, source_ref=source_ref),
source=globals_value,
source_ref=source_ref),
StatementAssignmentVariable(
variable_ref=ExpressionTargetTempVariableRef(
variable=locals_keeper_variable, source_ref=source_ref),
source=locals_value,
source_ref=source_ref),
StatementAssignmentVariable(
variable_ref=ExpressionTargetTempVariableRef(
variable=plain_indicator_variable, source_ref=source_ref),
source=ExpressionConstantRef(constant=False,
source_ref=source_ref),
source_ref=source_ref),
StatementConditional(
condition=ExpressionComparisonIs(left=ExpressionTempVariableRef(
variable=globals_keeper_variable, source_ref=source_ref),
right=ExpressionConstantRef(
constant=None,
source_ref=source_ref),
source_ref=source_ref),
yes_branch=makeStatementsSequenceFromStatements(
StatementAssignmentVariable(
variable_ref=ExpressionTargetTempVariableRef(
variable=globals_keeper_variable,
source_ref=source_ref),
source=ExpressionBuiltinGlobals(source_ref=source_ref),
source_ref=source_ref,
),
StatementConditional(
condition=ExpressionComparisonIs(
left=ExpressionTempVariableRef(
variable=locals_keeper_variable,
source_ref=source_ref),
right=ExpressionConstantRef(constant=None,
source_ref=source_ref),
source_ref=source_ref),
yes_branch=makeStatementsSequenceFromStatements(
StatementAssignmentVariable(
variable_ref=ExpressionTargetTempVariableRef(
variable=locals_keeper_variable,
source_ref=source_ref),
source=ExpressionBuiltinLocals(
source_ref=source_ref),
source_ref=source_ref,
),
StatementAssignmentVariable(
variable_ref=ExpressionTargetTempVariableRef(
variable=plain_indicator_variable,
source_ref=source_ref),
source=ExpressionConstantRef(
constant=True, source_ref=source_ref),
source_ref=source_ref,
)),
no_branch=None,
source_ref=source_ref),
),
no_branch=makeStatementsSequenceFromStatements(
StatementConditional(
condition=ExpressionComparisonIs(
left=ExpressionTempVariableRef(
variable=locals_keeper_variable,
source_ref=source_ref),
right=ExpressionConstantRef(constant=None,
source_ref=source_ref),
source_ref=source_ref),
yes_branch=makeStatementsSequenceFromStatement(
statement=StatementAssignmentVariable(
variable_ref=ExpressionTargetTempVariableRef(
variable=locals_keeper_variable,
source_ref=source_ref),
source=ExpressionTempVariableRef(
variable=globals_keeper_variable,
source_ref=source_ref),
source_ref=source_ref,
)),
no_branch=None,
source_ref=source_ref)),
source_ref=source_ref),
# Source needs some special treatment for not done for "eval", if it's a
# file object, then must be read.
StatementConditional(
condition=ExpressionBuiltinIsinstance(
instance=ExpressionTempVariableRef(variable=source_variable,
source_ref=source_ref),
classes=ExpressionBuiltinAnonymousRef(
builtin_name="file",
source_ref=source_ref,
),
source_ref=source_ref),
yes_branch=makeStatementsSequenceFromStatement(
statement=StatementAssignmentVariable(
variable_ref=ExpressionTargetTempVariableRef(
variable=source_variable, source_ref=source_ref),
source=ExpressionCallEmpty(
called=ExpressionAttributeLookup(
source=ExpressionTempVariableRef(
variable=source_variable,
source_ref=source_ref),
attribute_name="read",
source_ref=source_ref),
source_ref=source_ref),
source_ref=source_ref)),
no_branch=None,
source_ref=source_ref),
StatementTryFinally(
tried=makeStatementsSequenceFromStatement(statement=StatementExec(
source_code=ExpressionTempVariableRef(variable=source_variable,
source_ref=source_ref),
globals_arg=ExpressionTempVariableRef(
variable=globals_keeper_variable, source_ref=source_ref),
locals_arg=ExpressionTempVariableRef(
variable=locals_keeper_variable, source_ref=source_ref),
source_ref=source_ref)),
final=makeStatementsSequenceFromStatements(
StatementConditional(
condition=ExpressionComparisonIs(
left=ExpressionTempVariableRef(
variable=plain_indicator_variable,
source_ref=source_ref),
right=ExpressionConstantRef(constant=True,
source_ref=source_ref),
source_ref=source_ref),
yes_branch=makeStatementsSequenceFromStatement(
statement=StatementLocalsDictSync(
locals_arg=ExpressionTempVariableRef(
variable=locals_keeper_variable,
source_ref=source_ref,
),
source_ref=source_ref.atInternal())),
no_branch=None,
source_ref=source_ref), ),
public_exc=False,
source_ref=source_ref))
final = makeStatementsSequenceFromStatements(
StatementReleaseVariable(variable=source_variable,
tolerant=True,
source_ref=source_ref),
StatementReleaseVariable(variable=globals_keeper_variable,
tolerant=True,
source_ref=source_ref),
StatementReleaseVariable(variable=locals_keeper_variable,
tolerant=True,
source_ref=source_ref),
StatementReleaseVariable(variable=plain_indicator_variable,
tolerant=True,
source_ref=source_ref),
)
return StatementTryFinally(tried=tried,
final=final,
public_exc=False,
source_ref=source_ref)
def _buildInplaceAssignAttributeNode(lookup_source, attribute_name,
tmp_variable1, tmp_variable2, operator,
expression, source_ref):
# First assign the target value to a temporary variable.
preserve_to_tmp = StatementAssignmentVariable(
variable_ref = ExpressionTargetTempVariableRef(
variable = tmp_variable1,
source_ref = source_ref
),
source = ExpressionAttributeLookup(
source = lookup_source.makeCloneAt(source_ref),
attribute_name = attribute_name,
source_ref = source_ref
),
source_ref = source_ref
)
# Second assign the in-place result to a temporary variable
inplace_to_tmp = StatementAssignmentVariable(
variable_ref = ExpressionTargetTempVariableRef(
variable = tmp_variable2,
source_ref = source_ref
),
source = ExpressionOperationBinaryInplace(
operator = operator,
left = ExpressionTempVariableRef(
variable = tmp_variable1,
source_ref = source_ref
),
right = expression,
source_ref = source_ref
),
source_ref = source_ref
)
# Third, copy it over, if the reference values change, i.e. IsNot is true.
copy_back_from_tmp = StatementConditional(
condition = ExpressionComparisonIsNOT(
left = ExpressionTempVariableRef(
variable = tmp_variable1,
source_ref = source_ref
),
right = ExpressionTempVariableRef(
variable = tmp_variable2,
source_ref = source_ref
),
source_ref = source_ref
),
yes_branch = makeStatementsSequenceFromStatement(
statement = StatementAssignmentAttribute(
expression = lookup_source.makeCloneAt(source_ref),
attribute_name = attribute_name,
source = ExpressionTempVariableRef(
variable = tmp_variable2,
source_ref = source_ref
),
source_ref = source_ref
)
),
no_branch = None,
source_ref = source_ref
)
copy_back_from_tmp = makeTryFinallyStatement(
tried = copy_back_from_tmp,
final = StatementReleaseVariable(
variable = tmp_variable2,
tolerant = False,
source_ref = source_ref
),
source_ref = source_ref
)
return (
preserve_to_tmp,
# making sure the above temporary variable is deleted in any case.
makeTryFinallyStatement(
tried = (
inplace_to_tmp,
copy_back_from_tmp,
),
final = StatementReleaseVariable(
variable = tmp_variable1,
tolerant = False,
source_ref = source_ref
),
source_ref = source_ref
)
)
def wrapEvalBuiltin(source, globals_arg, locals_arg, source_ref):
provider = node.getParentVariableProvider()
temp_scope = provider.allocateTempScope("eval")
globals_ref, locals_ref, tried, final = wrapEvalGlobalsAndLocals(
provider=provider,
globals_node=globals_arg,
locals_node=locals_arg,
temp_scope=temp_scope,
source_ref=source_ref)
# The wrapping should not relocate to the "source_ref".
assert globals_arg is None or \
globals_ref.getSourceReference() == \
globals_arg.getSourceReference()
assert locals_arg is None or \
locals_ref.getSourceReference() == \
locals_arg.getSourceReference()
source_variable = provider.allocateTempVariable(temp_scope=temp_scope,
name="source")
final.setStatements(final.getStatements() + (
StatementDelVariable(variable_ref=ExpressionTargetTempVariableRef(
variable=source_variable, source_ref=source_ref),
tolerant=True,
source_ref=source_ref), ))
strip_choice = ExpressionConstantRef(constant=(" \t", ),
source_ref=source_ref)
if python_version >= 300:
strip_choice = ExpressionConditional(
condition=ExpressionComparisonIs(left=ExpressionBuiltinType1(
value=ExpressionTempVariableRef(variable=source_variable,
source_ref=source_ref),
source_ref=source_ref),
right=ExpressionBuiltinRef(
builtin_name="bytes",
source_ref=source_ref),
source_ref=source_ref),
yes_expression=ExpressionConstantRef(constant=(b" \t", ),
source_ref=source_ref),
no_expression=strip_choice,
source_ref=source_ref)
# Source needs some special treatment for eval, if it's a string, it
# must be stripped.
string_fixup = [
StatementAssignmentVariable(
variable_ref=ExpressionTargetTempVariableRef(
variable=source_variable, source_ref=source_ref),
source=ExpressionCallNoKeywords(
called=ExpressionAttributeLookup(
source=ExpressionTempVariableRef(
variable=source_variable, source_ref=source_ref),
attribute_name="strip",
source_ref=source_ref),
args=strip_choice,
source_ref=source_ref),
source_ref=source_ref)
]
statements = (StatementAssignmentVariable(
variable_ref=ExpressionTargetTempVariableRef(
variable=source_variable, source_ref=source_ref),
source=source,
source_ref=source_ref,
),
StatementConditional(condition=ExpressionOperationNOT(
operand=ExpressionBuiltinIsinstance(
instance=ExpressionTempVariableRef(
variable=source_variable,
source_ref=source_ref),
classes=ExpressionBuiltinAnonymousRef(
builtin_name="code",
source_ref=source_ref,
),
source_ref=source_ref),
source_ref=source_ref),
yes_branch=StatementsSequence(
statements=string_fixup,
source_ref=source_ref),
no_branch=None,
source_ref=source_ref))
tried.setStatements(tried.getStatements() + statements)
return ExpressionTryFinally(tried=tried,
expression=ExpressionBuiltinEval(
source_code=ExpressionTempVariableRef(
variable=source_variable,
source_ref=source_ref),
globals_arg=globals_ref,
locals_arg=locals_ref,
source_ref=source_ref),
final=final,
source_ref=source_ref)
def _buildClassNode3(provider, node, source_ref):
# Many variables, due to the huge re-formulation that is going on here,
# which just has the complexity, pylint: disable=too-many-locals
# This function is the Python3 special case with special re-formulation as
# according to developer manual.
class_statement_nodes, class_doc = extractDocFromBody(node)
# We need a scope for the temporary variables, and they might be closured.
temp_scope = provider.allocateTempScope(name="class_creation")
tmp_bases = provider.allocateTempVariable(temp_scope=temp_scope,
name="bases")
tmp_class_decl_dict = provider.allocateTempVariable(temp_scope=temp_scope,
name="class_decl_dict")
tmp_metaclass = provider.allocateTempVariable(temp_scope=temp_scope,
name="metaclass")
tmp_prepared = provider.allocateTempVariable(temp_scope=temp_scope,
name="prepared")
class_creation_function = ExpressionClassBody(provider=provider,
name=node.name,
doc=class_doc,
source_ref=source_ref)
class_variable = class_creation_function.getVariableForAssignment(
"__class__")
class_variable_ref = ExpressionVariableRef(variable=class_variable,
source_ref=source_ref)
parent_module = provider.getParentModule()
code_object = CodeObjectSpec(
co_name=node.name,
co_kind="Class",
co_varnames=(),
co_argcount=0,
co_kwonlyargcount=0,
co_has_starlist=False,
co_has_stardict=False,
co_filename=parent_module.getRunTimeFilename(),
co_lineno=source_ref.getLineNumber(),
future_spec=parent_module.getFutureSpec())
body = buildFrameNode(provider=class_creation_function,
nodes=class_statement_nodes,
code_object=code_object,
source_ref=source_ref)
source_ref_orig = source_ref
if body is not None:
# The frame guard has nothing to tell its line number to.
body.source_ref = source_ref
statements = [
StatementSetLocals(
locals_scope=class_creation_function.getLocalsScope(),
new_locals=ExpressionTempVariableRef(variable=tmp_prepared,
source_ref=source_ref),
source_ref=source_ref),
StatementAssignmentVariableName(
provider=class_creation_function,
variable_name="__module__",
source=makeConstantRefNode(
constant=provider.getParentModule().getFullName(),
source_ref=source_ref,
user_provided=True),
source_ref=source_ref)
]
if class_doc is not None:
statements.append(
StatementAssignmentVariableName(provider=class_creation_function,
variable_name="__doc__",
source=makeConstantRefNode(
constant=class_doc,
source_ref=source_ref,
user_provided=True),
source_ref=source_ref))
# The "__qualname__" attribute is new in Python 3.3.
if python_version >= 330:
qualname = class_creation_function.getFunctionQualname()
if python_version < 340:
qualname_ref = makeConstantRefNode(constant=qualname,
source_ref=source_ref,
user_provided=True)
else:
qualname_ref = ExpressionFunctionQualnameRef(
function_body=class_creation_function,
source_ref=source_ref,
)
statements.append(
StatementLocalsDictOperationSet(
locals_scope=class_creation_function.getLocalsScope(),
variable_name="__qualname__",
value=qualname_ref,
source_ref=source_ref))
if python_version >= 340:
qualname_assign = statements[-1]
if python_version >= 360 and \
class_creation_function.needsAnnotationsDictionary():
statements.append(
StatementAssignmentVariableName(provider=class_creation_function,
variable_name="__annotations__",
source=makeConstantRefNode(
constant={},
source_ref=source_ref,
user_provided=True),
source_ref=source_ref))
statements.append(body)
statements += [
StatementAssignmentVariable(
variable=class_variable,
source=makeExpressionCall(
called=ExpressionTempVariableRef(variable=tmp_metaclass,
source_ref=source_ref),
args=makeSequenceCreationOrConstant(
sequence_kind="tuple",
elements=(makeConstantRefNode(constant=node.name,
source_ref=source_ref,
user_provided=True),
ExpressionTempVariableRef(variable=tmp_bases,
source_ref=source_ref),
ExpressionBuiltinLocalsRef(
locals_scope=class_creation_function.
getLocalsScope(),
source_ref=source_ref)),
source_ref=source_ref),
kw=ExpressionTempVariableRef(variable=tmp_class_decl_dict,
source_ref=source_ref),
source_ref=source_ref),
source_ref=source_ref),
StatementReturn(expression=class_variable_ref, source_ref=source_ref)
]
body = makeStatementsSequenceFromStatement(
statement=makeTryFinallyStatement(
provider=class_creation_function,
tried=mergeStatements(statements, True),
final=StatementReleaseLocals(
locals_scope=class_creation_function.getLocalsScope(),
source_ref=source_ref),
source_ref=source_ref))
# The class body is basically a function that implicitly, at the end
# returns its locals and cannot have other return statements contained.
class_creation_function.setBody(body)
# The class body is basically a function that implicitly, at the end
# returns its created class and cannot have other return statements
# contained.
decorated_body = class_creation_function
for decorator in buildNodeList(provider, reversed(node.decorator_list),
source_ref):
decorated_body = makeExpressionCall(
called=decorator,
args=ExpressionMakeTuple(elements=(decorated_body, ),
source_ref=source_ref),
kw=None,
source_ref=decorator.getSourceReference())
statements = (
StatementAssignmentVariable(variable=tmp_bases,
source=buildTupleCreationNode(
provider=provider,
elements=node.bases,
source_ref=source_ref),
source_ref=source_ref),
StatementAssignmentVariable(
variable=tmp_class_decl_dict,
source=makeDictCreationOrConstant2(
keys=[keyword.arg for keyword in node.keywords],
values=[
buildNode(provider, keyword.value, source_ref)
for keyword in node.keywords
],
source_ref=source_ref),
source_ref=source_ref),
StatementAssignmentVariable(
variable=tmp_metaclass,
source=ExpressionSelectMetaclass(metaclass=ExpressionConditional(
condition=ExpressionComparisonIn(
left=makeConstantRefNode(constant="metaclass",
source_ref=source_ref,
user_provided=True),
right=ExpressionTempVariableRef(
variable=tmp_class_decl_dict, source_ref=source_ref),
source_ref=source_ref),
expression_yes=ExpressionDictOperationGet(
dict_arg=ExpressionTempVariableRef(
variable=tmp_class_decl_dict, source_ref=source_ref),
key=makeConstantRefNode(constant="metaclass",
source_ref=source_ref,
user_provided=True),
source_ref=source_ref),
expression_no=ExpressionConditional(
condition=ExpressionTempVariableRef(variable=tmp_bases,
source_ref=source_ref),
expression_no=makeExpressionBuiltinRef(
builtin_name="type", source_ref=source_ref),
expression_yes=ExpressionBuiltinType1(
value=ExpressionSubscriptLookup(
subscribed=ExpressionTempVariableRef(
variable=tmp_bases, source_ref=source_ref),
subscript=makeConstantRefNode(
constant=0,
source_ref=source_ref,
user_provided=True),
source_ref=source_ref),
source_ref=source_ref),
source_ref=source_ref),
source_ref=source_ref),
bases=ExpressionTempVariableRef(
variable=tmp_bases,
source_ref=source_ref),
source_ref=source_ref),
source_ref=source_ref_orig),
StatementConditional(
condition=ExpressionComparisonIn(
left=makeConstantRefNode(constant="metaclass",
source_ref=source_ref,
user_provided=True),
right=ExpressionTempVariableRef(variable=tmp_class_decl_dict,
source_ref=source_ref),
source_ref=source_ref),
no_branch=None,
yes_branch=makeStatementsSequenceFromStatement(
statement=StatementDictOperationRemove(
dict_arg=ExpressionTempVariableRef(
variable=tmp_class_decl_dict, source_ref=source_ref),
key=makeConstantRefNode(constant="metaclass",
source_ref=source_ref,
user_provided=True),
source_ref=source_ref)),
source_ref=source_ref),
StatementAssignmentVariable(
variable=tmp_prepared,
source=ExpressionConditional(
condition=ExpressionBuiltinHasattr(
object_arg=ExpressionTempVariableRef(
variable=tmp_metaclass, source_ref=source_ref),
name=makeConstantRefNode(constant="__prepare__",
source_ref=source_ref,
user_provided=True),
source_ref=source_ref),
expression_no=makeConstantRefNode(constant={},
source_ref=source_ref,
user_provided=True),
expression_yes=makeExpressionCall(
called=ExpressionAttributeLookup(
source=ExpressionTempVariableRef(
variable=tmp_metaclass, source_ref=source_ref),
attribute_name="__prepare__",
source_ref=source_ref),
args=ExpressionMakeTuple(
elements=(makeConstantRefNode(constant=node.name,
source_ref=source_ref,
user_provided=True),
ExpressionTempVariableRef(
variable=tmp_bases,
source_ref=source_ref)),
source_ref=source_ref),
kw=ExpressionTempVariableRef(variable=tmp_class_decl_dict,
source_ref=source_ref),
source_ref=source_ref),
source_ref=source_ref),
source_ref=source_ref),
StatementAssignmentVariableName(provider=provider,
variable_name=mangleName(
node.name, provider),
source=decorated_body,
source_ref=source_ref))
if python_version >= 340:
class_creation_function.qualname_setup = node.name, qualname_assign
final = (StatementReleaseVariable(variable=tmp_bases,
source_ref=source_ref),
StatementReleaseVariable(variable=tmp_class_decl_dict,
source_ref=source_ref),
StatementReleaseVariable(variable=tmp_metaclass,
source_ref=source_ref),
StatementReleaseVariable(variable=tmp_prepared,
source_ref=source_ref))
return makeTryFinallyStatement(provider=provider,
tried=statements,
final=final,
source_ref=source_ref)
def createPathAssignment(package, source_ref):
if Options.getFileReferenceMode() == "original":
path_value = makeConstantRefNode(
constant=[os.path.dirname(source_ref.getFilename())],
source_ref=source_ref,
user_provided=True,
)
else:
elements = [
ExpressionCallNoKeywords(
called=ExpressionAttributeLookup(
expression=ExpressionImportModuleNameHard(
module_name="os",
import_name="path",
source_ref=source_ref),
attribute_name="dirname",
source_ref=source_ref,
),
args=makeExpressionMakeTuple(
elements=(ExpressionModuleAttributeFileRef(
variable=package.getVariableForReference("__file__"),
source_ref=source_ref,
), ),
source_ref=source_ref,
),
source_ref=source_ref,
)
]
if package.canHaveExternalImports():
parts = package.getFullName().asString().split(".")
for count in range(len(parts)):
path_part = _makeCall(
"os",
"environ",
"get",
source_ref,
makeConstantRefNode(
constant="NUITKA_PACKAGE_%s" %
"_".join(parts[:count + 1]),
source_ref=source_ref,
),
makeConstantRefNode(constant="/notexist",
source_ref=source_ref),
)
if parts[count + 1:]:
path_part = _makeCall(
"os",
"path",
"join",
source_ref,
path_part,
makeConstantRefNode(
constant=os.path.join(*parts[count + 1:]),
source_ref=source_ref,
),
)
elements.append(path_part)
path_value = makeExpressionMakeList(elements=elements,
source_ref=source_ref)
return StatementAssignmentVariableName(
provider=package,
variable_name="__path__",
source=path_value,
source_ref=source_ref,
)
