def replaceBuiltinsCallsThatRequireInterpreter( tree, future_flags ):
def _pickLocalsForNode( node ):
provider = node.getParentVariableProvider()
if provider.isModule():
return Nodes.CPythonExpressionBuiltinCallGlobals(
source_ref = node.getSourceReference()
)
else:
return Nodes.CPythonExpressionBuiltinCallLocals(
source_ref = node.getSourceReference()
)
def _pickGlobalsForNode( node ):
return Nodes.CPythonExpressionBuiltinCallGlobals(
source_ref = node.getSourceReference()
)
def globals_extractor( node ):
assert node.isEmptyCall()
return _pickGlobalsForNode( node )
def locals_extractor( node ):
assert node.isEmptyCall()
return _pickLocalsForNode( node )
def dir_extractor( node ):
# Only treat the empty dir() call, leave the others alone for now.
if not node.isEmptyCall():
return None
return Nodes.CPythonExpressionBuiltinCallDir(
source_ref = node.getSourceReference()
)
def vars_extractor( node ):
assert node.hasOnlyPositionalArguments()
positional_args = node.getPositionalArguments()
if len( positional_args ) == 0:
return Nodes.CPythonExpressionBuiltinCallLocals(
source_ref = node.getSourceReference()
)
elif len( positional_args ) == 1:
return Nodes.CPythonExpressionBuiltinCallVars(
source = positional_args[ 0 ],
source_ref = node.getSourceReference()
)
else:
assert False
def eval_extractor( node ):
assert node.hasOnlyPositionalArguments()
positional_args = node.getPositionalArguments()
return Nodes.CPythonExpressionBuiltinCallEval (
source = positional_args[0],
globals_arg = positional_args[1] if len( positional_args ) > 1 else None,
locals_arg = positional_args[2] if len( positional_args ) > 2 else None,
mode = "eval",
future_flags = future_flags,
source_ref = node.getSourceReference()
)
def execfile_extractor( node ):
assert node.parent.isStatementExpression()
assert node.hasOnlyPositionalArguments()
positional_args = node.getPositionalArguments()
source_ref = node.getSourceReference()
source_node = Nodes.CPythonExpressionFunctionCall(
called_expression = Nodes.CPythonExpressionAttributeLookup(
expression = Nodes.CPythonExpressionBuiltinCallOpen(
filename = positional_args[0],
mode = Nodes.CPythonExpressionConstant(
constant = "rU",
source_ref = source_ref
),
buffering = None,
source_ref = source_ref
),
attribute = "read",
source_ref = source_ref
),
positional_args = (),
named_args = (),
list_star_arg = None,
dict_star_arg = None,
source_ref = source_ref
)
return Nodes.CPythonStatementExec(
source = source_node,
globals_arg = positional_args[1] if len( positional_args ) > 1 else None,
locals_arg = positional_args[2] if len( positional_args ) > 2 else None,
future_flags = future_flags,
source_ref = source_ref
)
visitor = TreeVisitorReplaceBuiltinCalls(
replacements = {
"globals" : globals_extractor,
"locals" : locals_extractor,
"dir" : dir_extractor,
"vars" : vars_extractor,
"eval" : eval_extractor,
"execfile" : execfile_extractor
}
)
TreeOperations.visitTree( tree, visitor )
visitor = TreeVisitorFixupNewStaticmethod()
TreeOperations.visitTree( tree, visitor )
def _prepareCodeGeneration( tree ):
visitor = _PrepareCodeGenerationVisitor()
TreeOperations.visitTree( tree, visitor )
def replaceConstantExecs( tree, build_node ):
visitor = TreeVisitorOptimizeStaticExec( build_node )
TreeOperations.visitTree( tree, visitor )