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nac3/nac3standalone/demo/interpret_demo.py

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#!/usr/bin/env python3
import sys
import importlib.util
import importlib.machinery
import pathlib
from numpy import int32, int64, uint32, uint64
from typing import TypeVar, Generic
T = TypeVar('T')
class Option(Generic[T]):
_nac3_option: T
def __init__(self, v: T):
self._nac3_option = v
def is_none(self):
return self._nac3_option is None
def is_some(self):
return not self.is_none()
def unwrap(self):
return self._nac3_option
def __repr__(self) -> str:
if self.is_none():
return "none"
else:
return "Some({})".format(repr(self._nac3_option))
def __str__(self) -> str:
if self.is_none():
return "none"
else:
return "Some({})".format(str(self._nac3_option))
def Some(v: T) -> Option[T]:
return Option(v)
none = Option(None)
def patch(module):
def output_asciiart(x):
if x < 0:
sys.stdout.write("\n")
else:
sys.stdout.write(" .,-:;i+hHM$*#@ "[x])
def output_float(x):
print("%f" % x)
def extern(fun):
name = fun.__name__
if name == "output_asciiart":
return output_asciiart
elif name == "output_float64":
return output_float
elif name in {
"output_int32",
"output_int64",
"output_int32_list",
"output_uint32",
"output_uint64",
"output_str",
}:
return print
else:
raise NotImplementedError
module.int32 = int32
module.int64 = int64
module.uint32 = uint32
module.uint64 = uint64
module.TypeVar = TypeVar
module.Generic = Generic
module.extern = extern
module.Option = Option
module.Some = Some
module.none = none
def file_import(filename, prefix="file_import_"):
filename = pathlib.Path(filename)
modname = prefix + filename.stem
path = str(filename.resolve().parent)
sys.path.insert(0, path)
try:
spec = importlib.util.spec_from_loader(
modname,
importlib.machinery.SourceFileLoader(modname, str(filename)),
)
module = importlib.util.module_from_spec(spec)
patch(module)
spec.loader.exec_module(module)
finally:
sys.path.remove(path)
return module
def main():
demo = file_import(sys.argv[1])
demo.run()
if __name__ == "__main__":
main()