def buildLambdaNode(provider, node, source_ref):
# Many details to deal with, pylint: disable=too-many-locals
assert getKind(node) == "Lambda"
function_kind, flags = detectFunctionBodyKind(nodes=(node.body,))
outer_body, function_body, code_object = buildFunctionWithParsing(
provider=provider,
function_kind=function_kind,
name="<lambda>",
function_doc=None,
flags=flags,
node=node,
source_ref=source_ref,
)
if function_kind == "Function":
code_body = function_body
else:
code_body = ExpressionGeneratorObjectBody(
provider=function_body,
name="<lambda>",
code_object=code_object,
flags=None,
auto_release=None,
source_ref=source_ref,
)
code_body.qualname_provider = provider
if function_kind == "Generator":
function_body.setChild(
"body",
makeStatementsSequenceFromStatement(
statement=StatementReturn(
expression=ExpressionMakeGeneratorObject(
generator_ref=ExpressionFunctionRef(
function_body=code_body, source_ref=source_ref
),
source_ref=source_ref,
),
source_ref=source_ref,
)
),
)
defaults = buildNodeList(provider, node.args.defaults, source_ref)
kw_defaults = buildParameterKwDefaults(
provider=provider, node=node, function_body=function_body, source_ref=source_ref
)
body = buildNode(provider=code_body, node=node.body, source_ref=source_ref)
if function_kind == "Generator":
if python_version < 0x270:
tmp_return_value = code_body.allocateTempVariable(
temp_scope=None, name="yield_return"
)
statements = (
StatementAssignmentVariable(
variable=tmp_return_value, source=body, source_ref=source_ref
),
makeStatementConditional(
condition=ExpressionComparisonIsNot(
left=ExpressionTempVariableRef(
variable=tmp_return_value, source_ref=source_ref
),
right=ExpressionConstantNoneRef(source_ref=source_ref),
source_ref=source_ref,
),
yes_branch=StatementExpressionOnly(
expression=ExpressionYield(
expression=ExpressionTempVariableRef(
variable=tmp_return_value, source_ref=source_ref
),
source_ref=source_ref,
),
source_ref=source_ref,
),
no_branch=None,
source_ref=source_ref,
),
)
body = makeTryFinallyStatement(
provider=provider,
tried=statements,
final=StatementReleaseVariable(
variable=tmp_return_value, source_ref=source_ref
),
source_ref=source_ref,
)
else:
body = StatementExpressionOnly(expression=body, source_ref=source_ref)
else:
body = StatementReturn(expression=body, source_ref=source_ref)
if function_kind == "Generator":
frame_class = StatementsFrameGenerator
else:
frame_class = StatementsFrameFunction
body = frame_class(
statements=mergeStatements((body,)),
code_object=code_object,
source_ref=body.getSourceReference(),
)
body = makeStatementsSequenceFromStatement(statement=body)
code_body.setChild("body", body)
annotations = buildParameterAnnotations(provider, node, source_ref)
return ExpressionFunctionCreation(
function_ref=ExpressionFunctionRef(
function_body=outer_body, source_ref=source_ref
),
defaults=defaults,
kw_defaults=kw_defaults,
annotations=annotations,
source_ref=source_ref,
)
