def build_wrapper_function_ast(env, wrapper_lfunc, llvm_module):
"""
Build AST for LLVM function wrapper.
lfunc: LLVM function to wrap
llvm_module: module the wrapper is being defined in
The resulting AST has a NativeCallNode to the wrapped function. The
arguments are LLVMValueRefNode nodes which still need their llvm_value
set to the object from the tuple. This happens in visit_FunctionWrapperNode
during codegen.
"""
func = env.crnt.func
func_signature = env.crnt.func_signature
func_name = env.crnt.func_name
# Insert external declaration
lfunc = llvm_module.get_or_insert_function(func_signature.to_llvm(env.context), env.crnt.lfunc.name)
# Build AST
wrapper = nodes.FunctionWrapperNode(lfunc, func_signature, func, fake_pyfunc, func_name)
error_return = ast.Return(nodes.CoercionNode(nodes.NULL_obj, object_))
is_closure = bool(closures.is_closure_signature(func_signature))
nargs = len(func_signature.args) - is_closure
# Call wrapped function with unpacked object arguments
# (delay actual arguments)
args = [nodes.LLVMValueRefNode(object_, None) for i in range(nargs)]
if is_closure:
# Insert m_self as scope argument type
closure_scope = get_closure_scope(func_signature, wrapper_lfunc.args[0])
args.insert(0, closure_scope)
func_call = nodes.NativeCallNode(func_signature, args, lfunc)
if not is_obj(func_signature.return_type):
# Check for error using PyErr_Occurred()
func_call = nodes.PyErr_OccurredNode(func_call)
# Coerce and return result
if func_signature.return_type.is_void:
wrapper.body = func_call
result_node = nodes.ObjectInjectNode(None)
else:
wrapper.body = None
result_node = func_call
wrapper.return_result = ast.Return(value=nodes.CoercionNode(result_node, object_))
# Update wrapper
wrapper.error_return = error_return
wrapper.cellvars = []
wrapper.wrapped_nargs = nargs
wrapper.wrapped_args = args[is_closure:]
return wrapper
def build_wrapper_function_ast(env, wrapper_lfunc, llvm_module):
"""
Build AST for LLVM function wrapper.
lfunc: LLVM function to wrap
llvm_module: module the wrapper is being defined in
The resulting AST has a NativeCallNode to the wrapped function. The
arguments are LLVMValueRefNode nodes which still need their llvm_value
set to the object from the tuple. This happens in visit_FunctionWrapperNode
during codegen.
"""
func = env.crnt.func
func_signature = env.crnt.func_signature
func_name = env.crnt.func_name
# Insert external declaration
lfunc = llvm_module.get_or_insert_function(
func_signature.to_llvm(env.context),
env.crnt.lfunc.name)
# Build AST
wrapper = nodes.FunctionWrapperNode(lfunc,
func_signature,
func,
fake_pyfunc,
func_name)
error_return = ast.Return(nodes.CoercionNode(nodes.NULL_obj,
object_))
is_closure = bool(closures.is_closure_signature(func_signature))
nargs = len(func_signature.args) - is_closure
# Call wrapped function with unpacked object arguments
# (delay actual arguments)
args = [nodes.LLVMValueRefNode(object_, None)
for i in range(nargs)]
if is_closure:
# Insert m_self as scope argument type
closure_scope = get_closure_scope(func_signature, wrapper_lfunc.args[0])
args.insert(0, closure_scope)
func_call = nodes.NativeCallNode(func_signature, args, lfunc)
if not is_obj(func_signature.return_type):
# Check for error using PyErr_Occurred()
func_call = nodes.PyErr_OccurredNode(func_call)
# Coerce and return result
if func_signature.return_type.is_void:
wrapper.body = func_call
result_node = nodes.ObjectInjectNode(None)
else:
wrapper.body = None
result_node = func_call
wrapper.return_result = ast.Return(value=nodes.CoercionNode(result_node,
object_))
# Update wrapper
wrapper.error_return = error_return
wrapper.cellvars = []
wrapper.wrapped_nargs = nargs
wrapper.wrapped_args = args[is_closure:]
return wrapper
def is_closure_signature(self, func_signature):
from numba import closures
return closures.is_closure_signature(func_signature)
