def generate_function_body(func):
sig, = func.nopython_signatures
converters = [(arg, VALUE_EXTRACTORS[arg]) for arg in sig.args]
resulter = RESULT_SETTERS[sig.return_type]
args = []
sequence = []
for i, (argtype, converter) in enumerate(converters):
arg = sub(load.argv, idx(i))
converter_function = call[converter.__name__]
argname = 'arg_{:d}'.format(i)
if isinstance(argtype, types.Optional):
if_statement, rest, arg = unnullify(arg, converter_function, argname, argtype)
else:
if_statement, rest, arg = fail_if_null(arg, converter_function, argname, argtype)
sequence.append(if_statement)
if rest is not None:
sequence.append(rest)
args.append(arg)
result = call[func.__name__](*args)
final_call = call[resulter.__name__](load.ctx, load.result_value)
return sequence + [
ast.Assign(targets=[store.result_value], value=result),
ast.If(
test=ast.Compare(
left=load.result_value,
ops=[ast.IsNot()],
comparators=[NONE]
),
body=[ast.Expr(value=final_call)],
orelse=[ast.Expr(value=call.sqlite3_result_null(load.ctx))]
) if isinstance(sig.return_type, types.Optional) else (
ast.Expr(value=final_call)
)
]
def gen_step(cls, name):
class_name = cls.__name__
sig, = cls.class_type.jitmethods['step'].nopython_signatures
args = sig.args[1:]
body = [
ast.Assign(
targets=[store['arg_{:d}'.format(i)]],
value=sub(load.argv, idx(i))
)
for i, arg in enumerate(args)
]
step_args = []
statements = []
for i, a in enumerate(args):
if isinstance(a, types.Optional):
func = unnullify
else:
func = fail_if_null
if_statement, rest, argument = func(
load['arg_{:d}'.format(i)],
call[VALUE_EXTRACTORS[a].__name__],
'value_{:d}'.format(i),
a
)
statements.append(if_statement)
if rest is not None:
statements.append(rest)
step_args.append(argument)
body.extend([
ast.Assign(
targets=[
store.agg_ctx
],
value=call.unsafe_cast(
call.sqlite3_aggregate_context(
load.ctx,
call.sizeof(load[class_name])
),
load[class_name]
)
),
ast.If(
test=call.not_null(load.agg_ctx),
body=statements + [
ast.Expr(value=call(attr.agg_ctx.step, *step_args))
],
orelse=[]
)
])
decorator_list = [
call.cfunc(
call.void(load.voidptr, load.intc, call.CPointer(load.voidptr)),
nopython=TRUE
)
]
function_signature = ast.arguments(
args=[arg.ctx, arg.argc, arg.argv],
vararg=None,
kwonlyargs=[],
kw_defaults=[],
kwargs=None,
defaults=[],
)
mod = ast.Module(
body=[
import_from.numba[alias.cfunc],
import_from.numba.types[
alias.void, alias.voidptr, alias.intc, alias.CPointer
],
ast.FunctionDef(
name=name,
args=function_signature,
body=body,
decorator_list=decorator_list,
returns=None
)
]
)
return mod
def test_sub(i):
assert eq(
sub(load.a, idx(i)),
ast.Subscript(value=ast.Name(id="a", ctx=ast.Load()), slice=ast.Index(value=ast.Num(n=i)), ctx=ast.Load()),
)
