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# based on https://github.com/fabioz/PyDev.Debugger/tree/main/pydevd_plugins/extensions
import os
import sys
from typing import Any, Dict
from _pydevd_bundle.pydevd_extension_api import ( # type: ignore
StrPresentationProvider,
TypeResolveProvider,
)
DEBUG = False
def print_debug(msg: str) -> None: # pragma: no cover
if DEBUG:
print(msg)
def find_mod_attr(mod_name: str, attr: str) -> Any:
mod = sys.modules.get(mod_name)
return getattr(mod, attr, None)
class OmegaConfDeveloperResolver(object):
def can_provide(self, type_object: Any, type_name: str) -> bool:
Node = find_mod_attr("omegaconf", "Node")
return Node is not None and issubclass(type_object, Node)
def resolve(self, obj: Any, attribute: str) -> Any:
return getattr(obj, attribute)
def get_dictionary(self, obj: Any) -> Any:
return obj.__dict__
class OmegaConfUserResolver(StrPresentationProvider): # type: ignore
def __init__(self) -> None:
self.Node = find_mod_attr("omegaconf", "Node")
self.ValueNode = find_mod_attr("omegaconf", "ValueNode")
self.ListConfig = find_mod_attr("omegaconf", "ListConfig")
self.DictConfig = find_mod_attr("omegaconf", "DictConfig")
self.InterpolationResolutionError = find_mod_attr(
"omegaconf.errors", "InterpolationResolutionError"
)
def can_provide(self, type_object: Any, type_name: str) -> bool:
return self.Node is not None and issubclass(type_object, self.Node)
def resolve(self, obj: Any, attribute: Any) -> Any:
if isinstance(obj, self.ListConfig) and isinstance(attribute, str):
attribute = int(attribute)
if isinstance(obj, self.Node):
obj = obj._dereference_node()
val = obj.__dict__["_content"][attribute]
print_debug(
f"resolving {obj} ({type(obj).__name__}), {attribute} -> {val} ({type(val).__name__})"
)
return val
def _is_simple_value(self, val: Any) -> bool:
return (
isinstance(val, self.ValueNode)
and not val._is_none()
and not val._is_missing()
and not val._is_interpolation()
)
def get_dictionary(self, obj: Any) -> Dict[str, Any]:
d = self._get_dictionary(obj)
print_debug(f"get_dictionary {obj}, ({type(obj).__name__}) -> {d}")
return d
def _get_dictionary(self, obj: Any) -> Dict[str, Any]:
if isinstance(obj, self.Node):
obj = obj._maybe_dereference_node()
if obj is None or obj._is_none() or obj._is_missing():
return {}
if isinstance(obj, self.DictConfig):
d = {}
for k, v in obj.__dict__["_content"].items():
if self._is_simple_value(v):
v = v._value()
d[k] = v
elif isinstance(obj, self.ListConfig):
d = {}
for idx, v in enumerate(obj.__dict__["_content"]):
if self._is_simple_value(v):
v = v._value()
d[str(idx)] = v
else:
d = {}
return d
def get_str(self, val: Any) -> str:
if val._is_missing():
return "??? <MISSING>"
if val._is_interpolation():
try:
dr = val._dereference_node()
except self.InterpolationResolutionError as e:
dr = f"ERR: {e}"
return f"{val._value()} -> {dr}"
else:
return f"{val}"
# OC_PYDEVD_RESOLVER env can take:
# DISABLE: Do not install a pydevd resolver
# USER: Install a resolver for OmegaConf users (default)
# DEV: Install a resolver for OmegaConf developers. Shows underlying data-model in the debugger.
resolver = os.environ.get("OC_PYDEVD_RESOLVER", "USER").upper()
if resolver != "DISABLE": # pragma: no cover
if resolver == "USER":
TypeResolveProvider.register(OmegaConfUserResolver)
elif resolver == "DEV":
TypeResolveProvider.register(OmegaConfDeveloperResolver)
else:
sys.stderr.write(
f"OmegaConf pydev plugin: Not installing. Unknown mode {resolver}. Supported one of [USER, DEV, DISABLE]\n"
)
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