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cclecle
f443623a4a no working work 2025-10-12 22:46:15 +02:00
19 changed files with 1148 additions and 216 deletions
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2
.project
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@@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>{{project_name}}</name>
<name>anytraverser</name>
<comment></comment>
<projects>
</projects>

8
Dockerfile
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@@ -1,10 +1,10 @@
# pyChaChaDummyProject (c) by chacha
# anytraverser (c) by chacha
#
# pyChaChaDummyProject is licensed under a
# Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International Unported License.
# anytraverser is licensed under a
# PolyForm Noncommercial License 1.0.0
#
# You should have received a copy of the license along with this
# work. If not, see <https://creativecommons.org/licenses/by-nc-sa/4.0/>.
# work. If not, see <https://polyformproject.org/licenses/noncommercial/1.0.0>.
FROM debian:bookworm-slim

8
Jenkinsfile vendored
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@@ -1,10 +1,10 @@
// pyChaChaDummyProject (c) by chacha
// anytraverser (c) by chacha
//
// pyChaChaDummyProject is licensed under a
// Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International Unported License.
// anytraverser is licensed under a
// PolyForm Noncommercial License 1.0.0
//
// You should have received a copy of the license along with this
// work. If not, see <https://creativecommons.org/licenses/by-nc-sa/4.0/>.
// work. If not, see <https://polyformproject.org/licenses/noncommercial/1.0.0>.
import groovy.xml.XmlUtil
import static javax.xml.xpath.XPathConstants.*

234
LICENSE.md
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@@ -1,175 +1,131 @@
# License
# PolyForm Noncommercial License 1.0.0
# Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International
<https://polyformproject.org/licenses/noncommercial/1.0.0>
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### Section 6 – Term and Termination.
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### Section 8 – Interpretation.
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c. No term or condition of this Public License will be waived and no failure to comply consented to unless expressly agreed to by the Licensor.
d. Nothing in this Public License constitutes or may be interpreted as a limitation upon, or waiver of, any privileges and immunities that apply to the Licensor or You, including from the legal processes of any jurisdiction or authority.
> Creative Commons is not a party to its public licenses. Notwithstanding, Creative Commons may elect to apply one of its public licenses to material it publishes and in those instances will be considered the “Licensor.” Except for the limited purpose of indicating that material is shared under a Creative Commons public license or as otherwise permitted by the Creative Commons policies published at [creativecommons.org/policies](http://creativecommons.org/policies), Creative Commons does not authorize the use of the trademark “Creative Commons” or any other trademark or logo of Creative Commons without its prior written consent including, without limitation, in connection with any unauthorized modifications to any of its public licenses or any other arrangements, understandings, or agreements concerning use of licensed material. For the avoidance of doubt, this paragraph does not form part of the public licenses.
>
> Creative Commons may be contacted at creativecommons.org
**Use** means anything you do with the software requiring one
of your licenses.

2
README.md
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@@ -4,7 +4,7 @@
![](https://chacha.ddns.net/jenkins/buildStatus/icon?job={{repository}}-{{branch}}&build=0&config=coverage)
![](https://chacha.ddns.net/jenkins/buildStatus/icon?job={{repository}}-{{branch}}&build=0&config=maintainability)
![](https://chacha.ddns.net/jenkins/buildStatus/icon?job={{repository}}-{{branch}}&build=0&config=quality)
![](https://chacha.ddns.net/jenkins/buildStatus/icon?subject=licence&status=CC%20BY-NC-SA%204.0&color=teal)
![](https://chacha.ddns.net/jenkins/buildStatus/icon?subject=licence&status=PolyForm-Noncommercial-1.0.0&color=teal)
![](docs-static/Library.jpg)

11
pyproject.toml
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@@ -1,10 +1,10 @@
# pyChaChaDummyProject (c) by chacha
# anytraverser (c) by chacha
#
# pyChaChaDummyProject is licensed under a
# Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International Unported License.
# anytraverser is licensed under a
# PolyForm Noncommercial License 1.0.0
#
# You should have received a copy of the license along with this
# work. If not, see <https://creativecommons.org/licenses/by-nc-sa/4.0/>.
# work. If not, see <https://polyformproject.org/licenses/noncommercial/1.0.0>.
[build-system]
requires = ["setuptools>=63", "wheel", "setuptools_scm"]
@@ -18,7 +18,7 @@ name = "anytraverser"
description = "Stream either Data or Annotations; hook into each step with Triggers to validate, transform, and build objects."
readme = "README.md"
requires-python = ">=3.11"
keywords = ["chacha","chacha","template","anytraverser"]
keywords = ["chacha","anytraverser"]
license = { file = "LICENSE.md" }
authors = [
@@ -31,6 +31,7 @@ classifiers = [
"Development Status :: 4 - Beta",
"Programming Language :: Python :: 3 :: Only",
"Programming Language :: Python :: 3.11",
"License :: PolyForm-Noncommercial-1.0.0",
]
dependencies = [
'importlib-metadata; python_version<"3.9"',

9
src/anytraverser/__init__.py
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@@ -1,14 +1,15 @@
# anytraverser (c) by chacha
#
# anytraverser is licensed under a
# Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International Unported License.
# anytraverser is licensed under a
# PolyForm Noncommercial License 1.0.0
#
# You should have received a copy of the license along with this
# work. If not, see <https://creativecommons.org/licenses/by-nc-sa/4.0/>.
# work. If not, see <https://polyformproject.org/licenses/noncommercial/1.0.0>.
"""
Main module __init__ file.
"""
from .__metadata__ import __version__, __Summuary__, __Name__
from .test_module import test_function
from .walkers.annotation_walker import AnnotationWalker
from .triggers.test_trigger import DataValidation

8
src/anytraverser/__metadata__.py
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@@ -1,10 +1,10 @@
# anytraverser (c) by chacha
#
# anytraverser is licensed under a
# Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International Unported License.
# anytraverser is licensed under a
# PolyForm Noncommercial License 1.0.0
#
# You should have received a copy of the license along with this
# work. If not, see <https://creativecommons.org/licenses/by-nc-sa/4.0/>.
# work. If not, see <https://polyformproject.org/licenses/noncommercial/1.0.0>.
"""
Metadata module module
@@ -15,7 +15,7 @@ import warnings
try: # pragma: no cover
__version__ = version("anytraverser")
except PackageNotFoundError: # pragma: no cover
except PackageNotFoundError: # pragma: no cover
warnings.warn("can not read __version__, assuming local test context, setting it to ?.?.?")
__version__ = "?.?.?"

101
src/anytraverser/context.py Normal file
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@@ -0,0 +1,101 @@
from typing import Any, Self, Optional, ChainMap, FrozenSet, Mapping
from enum import Enum, auto
class NodeRole(Enum):
ELEM = auto()
KEY = auto()
VAL = auto()
UNION = auto()
BRANCH = auto()
ANNO = auto()
ARG = auto()
class AnnotationWalkerCtx:
def __init__(
self,
origin: Any,
args: Any,
layer: int,
parent: Optional[Self] = None,
allowed_types: set[type, ...] = frozenset(),
allowed_annotations: dict[str, Any] = {},
):
self.__origin = origin
self.args = args
self.__layer = layer
self.__parent = parent
self.__allowed_types: set[type, ...] = allowed_types
self.__allowed_annotations: dict[str, Any] = allowed_annotations
self.__ext: dict[Any, ChainMap] = {} # per-trigger namespaces (lazy)
# NEW: edge routing metadata (walker sets; triggers read)
self.__node_role: NodeRole | None = NodeRole.ELEM
self.__edge_token: Any | None = None # index/key/branch-id/etc.
self.__arg_index: int | None = None # which schema arg of the parent this child is
@property
def origin(self) -> Any:
return self.__origin
@property
def layer(self) -> int:
return self.__layer
@property
def parent(self) -> Self:
return self.__parent
@property
def allowed_types(self) -> FrozenSet[type]:
return self.__allowed_types
@property
def allowed_annotations(self) -> Mapping[str, Any]:
return self.__allowed_annotations
# NEW: read-only edge metadata for routing inside triggers
@property
def node_role(self) -> NodeRole | None:
return self.__node_role
@property
def edge_token(self) -> Any | None:
return self.__edge_token
@property
def arg_index(self) -> int | None:
return self.__arg_index
def ns(self, owner: Any) -> ChainMap:
"""
A per-trigger overlay namespace that inherits from parent ctx.
Use as: bag = ctx.ns(self); bag['whatever'] = ...
Lookups fall back to parent's bag automatically.
"""
if owner in self.__ext:
return self.__ext[owner]
# Determine the parent chain for this owner
parent_chain = ()
if self.__parent is not None and hasattr(self.__parent, "_AnnotationWalkerCtx__ext"):
parent_map = self.__parent._AnnotationWalkerCtx__ext.get(owner) # access private attr intentionally
if isinstance(parent_map, ChainMap):
# IMPORTANT: preserve the whole chain (not the ChainMap object as a single mapping)
parent_chain = tuple(parent_map.maps)
elif isinstance(parent_map, dict):
parent_chain = (parent_map,)
else:
parent_chain = ()
# Build a new ChainMap whose first map is this node's local overlay
cm = ChainMap({}, *parent_chain)
self.__ext[owner] = cm
return cm
def _set_edge(self, *, role: str | None, token: Any | None, arg_index: int | None) -> None:
self.__node_role = role
self.__edge_token = token
self.__arg_index = arg_index

0
src/anytraverser/data/errors.py Normal file
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6
src/anytraverser/errors.py Normal file
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@@ -0,0 +1,6 @@
class UnsupportedFieldType(RuntimeError):
pass
class IncompletelyAnnotatedField(RuntimeError):
pass

69
src/anytraverser/protocols.py Normal file
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@@ -0,0 +1,69 @@
from typing import Self, Any, Optional
from dataclasses import dataclass
from .context import AnnotationWalkerCtx
@dataclass(frozen=True)
class TriggerResult:
# If provided, children won't be walked and this value is returned.
replace_with: Any | None = None
# If true, skip walking children but don't replace current node value.
skip_children: bool = False
# If provided, walker will restart processing with the given value
restart_with: Any | None = None # NEW
@staticmethod
def passthrough() -> Self:
return TriggerResult()
@staticmethod
def replace(value: Any) -> Self:
return TriggerResult(replace_with=value, skip_children=True)
@staticmethod
def skip() -> Self:
return TriggerResult(skip_children=True)
@staticmethod
def restart(value: Any) -> Self:
return TriggerResult(restart_with=value)
class AnnotationTrigger:
def init_trigger(self) -> None:
pass
def process_enter(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
return None
def process_annotated(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
return None
def process_union(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
return None
def process_dict(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
return None
def process_tuple(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
return None
def process_list(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
return None
def process_set(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
return None
def process_unknown(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
return None
def process_simple(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
return None
def process_exit(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
return None
def end_trigger(self, ctx: Optional[AnnotationWalkerCtx]) -> None:
pass

43
src/anytraverser/test_module.py
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@@ -1,43 +0,0 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# anytraverser (c) by chacha
#
# anytraverser is licensed under a
# Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International Unported License.
#
# You should have received a copy of the license along with this
# work. If not, see <https://creativecommons.org/licenses/by-nc-sa/4.0/>.
"""Phasellus tellus lectus, volutpat eu dapibus ut, suscipit vel augue.
Tips:
Aliquam non leo vel libero sagittis viverra. Quisque lobortis nunc sit amet augue euismod laoreet.
Note:
Maecenas volutpat porttitor pretium. Aliquam suscipit quis nisi non imperdiet.
Note:
Vivamus et efficitur lorem, eget imperdiet tortor. Integer vel interdum sem.
"""
from __future__ import annotations
from typing import TYPE_CHECKING
if TYPE_CHECKING: # Only imports the below statements during type checking
pass
def test_function(testvar: int) -> int:
""" A test function that return testvar+1 and print "Hello world !"
Proin eget sapien eget ipsum efficitur mollis nec ac nibh.
Note:
Morbi id lectus maximus, condimentum nunc eget, porta felis. In tristique velit tortor.
Args:
testvar: any integer
Returns:
testvar+1
"""
print("Hello world !")
return testvar+1

0
src/anytraverser/triggers/__init__.py Normal file
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181
src/anytraverser/triggers/test_trigger.py Normal file
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from typing import Any, Union
from types import UnionType
from copy import copy, deepcopy
from ..protocols import AnnotationTrigger, TriggerResult
from ..context import AnnotationWalkerCtx, NodeRole
from ..errors import UnsupportedFieldType, IncompletelyAnnotatedField
from pprint import pprint
class DataValidation(AnnotationTrigger):
def __init__(self, value: Any) -> None:
self._root = value
def init_trigger(self) -> None:
self._data_id = 0
def _get_new_id(self) -> int:
self._data_id = self._data_id + 1
return self._data_id
def process_enter(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
print("")
print(f"process_enter ({id(ctx)}): {ctx.node_role} / {ctx.edge_token}")
# print(f"arg_index: {ctx.arg_index}")
ns = ctx.ns(self)
if not ctx.parent:
print("= ROOT NODE =")
ns["cursors"] = [self._root]
ns["next_cursors"] = []
ns["current_branch_id"] = self._get_new_id()
ns["current_leaf_id"] = self._get_new_id()
ns["leaf_status"] = dict()
ns["leaf_status"][ns["current_leaf_id"]] = True
ns["leak_origin_branch"] = dict()
ns["leak_origin_branch"][ns["current_leaf_id"]] = ns["current_branch_id"]
else:
pns = ctx.parent.ns(self)
ns["cursors"] = pns["next_cursors"]
if ctx.node_role == NodeRole.BRANCH:
ns["current_leaf_id"] = self._get_new_id()
ns["leaf_status"][ns["current_leaf_id"]] = True
ns["leak_origin_branch"][ns["current_leaf_id"]] = ns["current_branch_id"]
print(f"- NEW leaf ({ns['current_leaf_id']}), from branch ({ns['current_branch_id']})")
print(f"DATA to check: {ns['cursors'] }")
def process_union(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
print(f"process_union ({id(ctx)})")
ns = ctx.ns(self)
ns["current_branch_id"] = self._get_new_id()
print(f"+ NEW branch ({ns['current_branch_id']})")
def process_list(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
print(f"process_list ({id(ctx)})")
ns = ctx.ns(self)
ns["next_cursors"] = ns["cursors"]
return
# print(b["cursor"])
remaining = []
for val in ns["candidates"]:
if not isinstance(val, list):
print(f"!!!!!!!!!!!!!!! NOT A LIST !! ({val})")
ns["branch_is_valid"] = False
remaining.append(val)
ns["candidates"].clear()
ns["candidates"].extend(remaining)
if issubclass(ctx.origin, UnionType):
path_id = self._get_new_id()
ns["branch_next_cursor"][path_id] = ns["cursor"]
ns["branch_nex_candidates"][path_id] = [type(elem_t) for elem_t in ns["cursor"]]
ns["branch_is_valid"][path_id] = ns["branch_is_valid"]
def process_simple(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
print(f"??? process_allowed ({id(ctx)})")
ns = ctx.ns(self)
return
remaining = [elem for elem in ns["cursors"] if not isinstance(elem, ctx.origin)]
print(f"remaining: {remaining}")
ns["candidates"].clear()
ns["candidates"].extend(remaining)
def process_exit(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
print(f"!!! process_exit ({id(ctx)})")
ns = ctx.ns(self)
print("")
def end_trigger(self, ctx: AnnotationWalkerCtx):
# print("end_trigger")
ns = ctx.ns(self)
def process_dict(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
# print(f"process_dict {ctx}")
ns = ctx.ns(self)
def process_tuple(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
# print(f"process_tuple {ctx}")
ns = ctx.ns(self)
def process_set(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
# print(f"process_set {ctx}")
ns = ctx.ns(self)
def process_unknown(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
# print(f"process_unknown {ctx}")
ns = ctx.ns(self)
raise RuntimeError(f"Unknown type: {ctx.origin}")
def process_annotated(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
# print(f"process_annotated {ctx}")
pass
class LAMSchemaValidation(AnnotationTrigger):
def init_trigger(self) -> None:
print(f"Initializing {self.__class__.__name__}")
def process_annotated(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
print("process_annotated")
print(ctx.origin)
print(ctx.args)
if len(ctx.args) != 2:
raise UnsupportedFieldType("Annotated[T,x] requires 2 parameters")
if ctx.parent is not None:
raise UnsupportedFieldType("Annotated[T,x] is only supported as parent annotation")
return None
def process_union(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
print("process_union")
print(ctx.args)
if (len(ctx.args) != 2) or (type(None) not in list(ctx.args)):
raise UnsupportedFieldType("Union[] is only supported to implement Optional[] (takes 2 parameters, including None)")
return None
def process_dict(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
print("process_dict")
if len(ctx.args) != 2:
raise IncompletelyAnnotatedField(f"Dict Annotation requires 2 inner definitions: {ctx.origin}")
if not ctx.args[0] in ctx.allowed_types:
raise IncompletelyAnnotatedField(f"Dict Key must be simple builtin: {ctx.origin}")
return None
def process_tuple(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
print("process_tuple")
if len(ctx.args) == 0:
raise IncompletelyAnnotatedField(f"Annotation requires inner definition: {ctx.origin}")
return None
def process_list(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
print("process_list")
if len(ctx.args) == 0:
raise IncompletelyAnnotatedField(f"Annotation requires inner definition: {ctx.origin}")
return None
def process_set(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
print("process_set")
if len(ctx.args) == 0:
raise IncompletelyAnnotatedField(f"Annotation requires inner definition: {ctx.origin}")
return None
def process_allowed(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
print("process_allowed")
if ctx.origin is type(None) or ctx.origin is None:
if ctx.parent is None or not (ctx.parent.origin is Union or ctx.parent.origin is UnionType):
raise IncompletelyAnnotatedField(f"None is only accepted with Union, to implement Optional[]")
return None
def process_exit(self, ctx: AnnotationWalkerCtx) -> None | TriggerResult:
print(f"process_exit: {ctx.origin}")
return None
def end_trigger(self, ctx: AnnotationWalkerCtx):
pass

389
src/anytraverser/triggers/validation_trigger.py Normal file
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from typing import Any, Union, Optional, get_origin, get_args, Annotated
from types import UnionType
from ..protocols import AnnotationTrigger
from ..context import AnnotationWalkerCtx
class SchemaValidationError(TypeError):
def __init__(self, path: tuple[Any, ...], msg: str):
dotted = "".join(f"[{p}]" if isinstance(p, int) else (f".{p}" if path and i else str(p)) for i, p in enumerate(path)) or "<root>"
super().__init__(f"{dotted}: {msg}")
self.path = path
class HorizontalValidationTrigger(AnnotationTrigger):
def __init__(
self,
value: Any,
*,
strict_bool: bool = False,
collect_all: bool = True,
union_summary_max_per_branch: int = 3, # NEW
show_branch_types: bool = True, # NEW
):
self._root_value = value
self._strict_bool = strict_bool
self._collect_all = collect_all
self._union_summary_max = union_summary_max_per_branch
self._show_branch_types = show_branch_types
self._seeded = False
self._id_counter = 0
# ---------- utilities ----------
# ---------- utilities ----------
def _mk_cand(self, value: Any, path: tuple[Any, ...]):
cid = self._id_counter
self._id_counter += 1
return {"id": cid, "value": value, "path": path}
def _spawn_from(self, bag, parent_cand: dict, value: Any, path: tuple[Any, ...]):
nc = self._mk_cand(value, path)
# Inherit union_roots map from parent (create if missing)
roots = dict(parent_cand.get("union_roots", {}))
nc["union_roots"] = roots
# If we are in a union branch, ensure current scope is stamped
if "__union_branch_id" in bag and "__union_state_ref" in bag:
cur_scope = bag.get("__union_scope_id")
if cur_scope is not None:
roots.setdefault(cur_scope, parent_cand.get("union_roots", {}).get(cur_scope, parent_cand["id"]))
return nc
def _bag(self, ctx: AnnotationWalkerCtx):
bag = ctx.ns(self)
local = bag.maps[0]
parent_bag = ctx.parent.ns(self) if ctx.parent is not None else None
# (existing seeding & routing)...
# ------------- NEW: inherit enclosing union flags to all descendants -------------
if parent_bag is not None:
for k in ("__union_state_ref", "__union_branch_id", "__union_scope_id"):
if (k in parent_bag) and (k not in local):
local[k] = parent_bag[k]
# ------------- If immediate child of a Union (branch) -------------
if ctx.parent is not None and ctx.parent.origin is UnionType and ctx.edge_role == "branch":
ubag = ctx.parent.ns(self)
branches = ubag.setdefault("union_branches_state", {})
bid = ctx.edge_token
bstate = branches.setdefault(bid, {"failed_ids": set(), "errors": []})
local["errors"] = bstate["errors"]
local["__union_branch_id"] = bid
local["__union_state_ref"] = ubag
# keep current union scope id (from parent union node)
local["__union_scope_id"] = ubag.get("__union_scope_id")
# STAMP union_roots for all candidates at branch entry
stamped = []
cur_scope = local.get("__union_scope_id")
for c in local.get("candidates", []):
c2 = dict(c)
roots = dict(c2.get("union_roots", {}))
if cur_scope is not None:
roots.setdefault(cur_scope, roots.get(cur_scope, c2["id"]))
c2["union_roots"] = roots
stamped.append(c2)
local["candidates"] = stamped
return bag
def _mark_branch_fail(self, bag, cand: dict):
if "__union_branch_id" in bag and "__union_state_ref" in bag:
bid = bag["__union_branch_id"]
uref = bag["__union_state_ref"]
branches = uref.setdefault("union_branches_state", {})
bstate = branches.setdefault(bid, {"failed_ids": set(), "errors": []})
root_id = cand.get("union_cid", cand["id"])
bstate["failed_ids"].add(root_id)
def _err(self, bag, cand, msg: str):
"""
Record an error. If we are inside a union branch, attach (cid, scope) so the
outer union can attribute it correctly to its branch/candidate.
"""
e = SchemaValidationError(cand["path"], msg)
# Find nearest union scope (walk ChainMap parents if needed)
def nearest_union_scope(b):
if "__union_scope_id" in b:
return b["__union_scope_id"]
# ChainMap.get() already searches parents; use get() with a sentinel
sentinel = object()
v = b.get("__union_scope_id", sentinel)
return None if v is sentinel else v
in_union_branch = ("__union_branch_id" in bag) and ("__union_state_ref" in bag)
if in_union_branch:
# union-root candidate id for attribution (propagated by spawn_from / branch entry)
root_id = cand.get("union_cid", cand["id"])
scope = nearest_union_scope(bag)
# Branch-local error bucket lives under union state
uref = bag["__union_state_ref"]
bid = bag["__union_branch_id"]
branches = uref.setdefault("union_branches_state", {})
bstate = branches.setdefault(bid, {"failed_ids": set(), "errors": []})
bstate["failed_ids"].add(root_id)
bstate["errors"].append({"cid": root_id, "scope": scope, "err": e})
return
# Outside any union branch: add to global errors (and optional fail-fast)
bag["errors"].append(e)
if not self._collect_all:
raise e
def _check_leaf(self, bag, cand: dict, T: type):
v = cand["value"]
if T is type(None):
if v is not None:
self._err(bag, cand, "expected None")
return
if self._strict_bool and T is bool and type(v) is not bool:
self._err(bag, cand, f"expected bool, got {type(v).__name__}")
return
if v is None or not isinstance(v, T):
got = "None" if v is None else type(v).__name__
self._err(bag, cand, f"expected {T.__name__}, got {got}")
# ---------- entry hooks (seed pending; validate leaves; no aggregation here) ----------
def process_allowed(self, ctx: AnnotationWalkerCtx):
bag = self._bag(ctx)
T = ctx.origin
for cand in bag.get("candidates", []):
self._check_leaf(bag, cand, T)
def process_list(self, ctx: AnnotationWalkerCtx):
bag = self._bag(ctx)
cands = bag.get("candidates", [])
if len(ctx.args) != 1:
for cand in cands:
self._err(bag, cand, "List[T] requires 1 argument")
return
pending = []
for cand in cands:
v = cand["value"]
if not isinstance(v, list):
self._err(bag, cand, f"expected list, got {type(v).__name__}")
continue
base = cand["path"]
for i in range(len(v)):
pending.append(self._spawn_from(bag, cand, v[i], base + (i,)))
bag["pending_elem"] = pending
def process_tuple(self, ctx: AnnotationWalkerCtx):
bag = self._bag(ctx)
cands = bag.get("candidates", [])
vararg = len(ctx.args) == 2 and ctx.args[1] is Ellipsis
if vararg:
pending = []
for cand in cands:
v = cand["value"]
if not isinstance(v, tuple):
self._err(bag, cand, f"expected tuple, got {type(v).__name__}")
continue
base = cand["path"]
for i in range(len(v)):
pending.append(self._spawn_from(bag, cand, v[i], base + (i,)))
bag["pending_elem"] = pending
else:
arity = len(ctx.args)
slots: dict[int, list] = {}
for cand in cands:
v = cand["value"]
if not isinstance(v, tuple):
self._err(bag, cand, f"expected tuple, got {type(v).__name__}")
continue
if len(v) != arity:
self._err(bag, cand, f"expected tuple len {arity}, got {len(v)}")
continue
base = cand["path"]
for i, elem in enumerate(v):
slots.setdefault(i, []).append(self._spawn_from(bag, cand, elem, base + (i,)))
for i, group in slots.items():
bag[f"pending_arg_{i}"] = group
def process_set(self, ctx: AnnotationWalkerCtx):
bag = self._bag(ctx)
cands = bag.get("candidates", [])
if len(ctx.args) != 1:
for cand in cands:
self._err(bag, cand, "Set[T]/FrozenSet[T] requires 1 argument")
return
pending = []
for cand in cands:
v = cand["value"]
if not isinstance(v, (set, frozenset)):
self._err(bag, cand, f"expected set/frozenset, got {type(v).__name__}")
continue
base = cand["path"]
for e in v:
pending.append(self._spawn_from(bag, cand, e, base + ("<elem>",)))
bag["pending_elem"] = pending
def process_dict(self, ctx: AnnotationWalkerCtx):
bag = self._bag(ctx)
cands = bag.get("candidates", [])
if len(ctx.args) != 2:
for cand in cands:
self._err(bag, cand, "Dict[K,V] requires 2 arguments")
return
pkeys, pvals = [], []
for cand in cands:
v = cand["value"]
if not isinstance(v, dict):
self._err(bag, cand, f"expected dict, got {type(v).__name__}")
continue
base = cand["path"]
for k, val in v.items():
pkeys.append(self._spawn_from(bag, cand, k, base + ("<key>",)))
pvals.append(self._spawn_from(bag, cand, val, base + (k,)))
bag["pending_key"] = pkeys
bag["pending_val"] = pvals
def process_annotated(self, ctx: AnnotationWalkerCtx):
# No checks here; inner T will validate routed candidates.
self._bag(ctx)
def process_union(self, ctx: AnnotationWalkerCtx):
bag = self._bag(ctx)
cands = bag.get("candidates", [])
# Preserve enclosing union scope id (if any) so inner unions can bubble to it
if "__outer_union_scope_id" not in bag and "__union_scope_id" in bag:
bag["__outer_union_scope_id"] = bag["__union_scope_id"]
bag["union_candidate_ids"] = [c["id"] for c in cands]
bag.setdefault("union_branches_state", {}) # bid -> {"failed_ids": set(), "errors": []}
bag["union_branch_labels"] = [self._pretty_type(a) for a in ctx.args]
# Set THIS union's scope id (distinct from the preserved outer scope)
bag["__union_scope_id"] = id(ctx)
# ---------- exit (aggregation only) ----------
def process_exit(self, ctx: AnnotationWalkerCtx):
if ctx.origin is not UnionType:
return None
bag = ctx.ns(self)
root_errors = bag.get("errors", [])
branches = bag.get("union_branches_state", {})
cand_ids = bag.get("union_candidate_ids", [])
labels = bag.get("union_branch_labels", [])
scope_id = bag.get("__union_scope_id")
outer_scope_id = bag.get("__outer_union_scope_id") # preserved from parent (if any)
# Build per-branch error map for THIS union scope
per_branch_errors: dict[int, dict[int, list[SchemaValidationError]]] = {}
for bid, state in branches.items():
berrs = state.get("errors", [])
m: dict[int, list[SchemaValidationError]] = {}
for item in berrs:
if isinstance(item, dict):
if item.get("scope") != scope_id:
continue
cid = item.get("cid")
err = item.get("err")
if cid is not None and isinstance(err, SchemaValidationError):
m.setdefault(cid, []).append(err)
elif isinstance(item, SchemaValidationError):
for cid in state.get("failed_ids", set()):
m.setdefault(cid, []).append(item)
# de-dupe per cid
for cid, lst in m.items():
seen = set()
uniq = []
for e in lst:
key = (e.path, str(e))
if key not in seen:
seen.add(key)
uniq.append(e)
m[cid] = uniq
per_branch_errors[bid] = m
# Decision: pass if ANY branch has zero scoped errors
for cid in cand_ids:
branch_pass = any(len(per_branch_errors.get(bid, {}).get(cid, [])) == 0 for bid in branches.keys())
if branch_pass:
continue
# --- Bubble to enclosing union if we are inside one (i.e., this union is in a branch) ---
if ("__union_state_ref" in bag) and ("__union_branch_id" in bag):
uref = bag["__union_state_ref"] # enclosing union node bag
up_bid = bag["__union_branch_id"] # which enclosing branch we are in
up_branches = uref.setdefault("union_branches_state", {})
up_state = up_branches.setdefault(up_bid, {"failed_ids": set(), "errors": []})
up_scope = uref.get("__union_scope_id")
# Find local candidate to recover outer root via union_roots
cands_here = bag.get("candidates", [])
lc = next((c for c in cands_here if c["id"] == cid), None)
if lc is not None and outer_scope_id is not None:
outer_root = lc.get("union_roots", {}).get(outer_scope_id, lc["id"])
else:
outer_root = cid
up_state["failed_ids"].add(outer_root)
up_state["errors"].append(
{
"cid": outer_root,
"scope": up_scope,
"err": SchemaValidationError((), "mismatch"),
}
)
# Build readable per-branch summary at THIS union site
cands_here = bag.get("candidates", [])
path = next((c["path"] for c in cands_here if c["id"] == cid), ())
lines = ["no union branch matched; tried:"]
for bid, state in branches.items():
label = labels[bid] if bid < len(labels) else f"branch {bid}"
these = per_branch_errors.get(bid, {}).get(cid, [])
if not these:
lines.append(f" - {label}: mismatch")
continue
N = getattr(self, "_union_summary_max", 3)
shown = these[:N]
lines.append(f" - {label}: {len(these)} issue(s)")
for e in shown:
lines.append(f" - {e}")
if len(these) > N:
lines.append(f" - (+{len(these) - N} more)")
root_errors.append(SchemaValidationError(path, "\n".join(lines)))
return None
def end_trigger(self, ctx: Optional[AnnotationWalkerCtx]):
if ctx is None:
return
errors = ctx.ns(self).get("errors", [])
if errors:
# Raise them together; swap for your preferred error carrier if needed
raise ExceptionGroup("schema validation failed", errors)
# --- pretty type for messages (best-effort) ---
def _pretty_type(self, t: Any) -> str:
origin = get_origin(t) or t
args = get_args(t)
try:
if origin is UnionType or origin is Union:
return " | ".join(self._pretty_type(a) for a in args)
if origin in (list, tuple, set, frozenset, dict, Annotated):
if origin is dict and len(args) == 2:
return f"dict[{self._pretty_type(args[0])}, {self._pretty_type(args[1])}]"
if origin in (list, set, frozenset) and len(args) == 1:
name = "list" if origin is list else ("set" if origin is set else "frozenset")
return f"{name}[{self._pretty_type(args[0])}]"
if origin is tuple:
if len(args) == 2 and args[1] is Ellipsis:
return f"tuple[{self._pretty_type(args[0])}, ...]"
return f"tuple[{', '.join(self._pretty_type(a) for a in args)}]"
if origin is Annotated and args:
return f"Annotated[{self._pretty_type(args[0])}, ...]"
if isinstance(origin, type):
return origin.__name__
return str(t)
except Exception:
return repr(t)

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src/anytraverser/walkers/__init__.py Normal file
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273
src/anytraverser/walkers/annotation_walker.py Normal file
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import typing
from typing import Any, Union, Optional, List, Dict, Tuple, Set, Annotated, Callable, get_origin, get_args
import types
from types import NoneType, UnionType
from frozendict import frozendict
from ..protocols import AnnotationTrigger, TriggerResult
from ..context import AnnotationWalkerCtx, NodeRole
class AnnotationWalker:
DEFAULT_ALLOWED_TYPES = frozenset({str, int, float, complex, bool, bytes, NoneType})
DEFAULT_ALLOWED_ANNOTATIONS: dict[str, Any] = frozendict(
{
"Union": Union,
"Optional": Optional,
"List": List,
"Dict": Dict,
"Tuple": Tuple,
"Set": Set,
# "FrozenSet": FrozenSet,
"Annotated": Annotated,
# builtins:
"int": int,
"str": str,
"float": float,
"bool": bool,
"complex": complex,
"bytes": bytes,
"None": type(None),
"list": list,
"dict": dict,
"set": set,
# "frozenset": frozenset,
"tuple": tuple,
}
)
def __init__(self, ann: Any, triggers: tuple[AnnotationTrigger, ...], **kwargs):
if not triggers:
raise RuntimeError("AnnotationWalker requires trigger(s)")
# Normalize triggers into instances
insts: list[AnnotationTrigger] = []
for t in triggers if isinstance(triggers, tuple) else (triggers,):
if isinstance(t, AnnotationTrigger):
insts.append(t)
elif isinstance(t, type) and issubclass(t, AnnotationTrigger):
insts.append(t())
else:
raise RuntimeError(f"Unsupported trigger: {t}")
self._triggers = tuple(insts)
# Allowed types / annotations
atypes = set(type(self).DEFAULT_ALLOWED_TYPES)
if "ex_allowed_types" in kwargs:
atypes.update(kwargs["ex_allowed_types"])
self._allowed_types = frozenset(atypes)
annots = dict(type(self).DEFAULT_ALLOWED_ANNOTATIONS)
if "ex_allowed_annotations" in kwargs:
annots.update(kwargs["ex_allowed_annotations"])
self._allowed_annotations = frozendict(annots)
# Annotation can be string
self.__ann = ann
if isinstance(ann, str):
self.__ann = eval(ann, {"__builtins__": {}}, self._allowed_annotations)
def run(self) -> TriggerResult:
for t in self._triggers:
t.init_trigger()
self.root_ctx = None
self._walk(self.__ann, None)
for t in self._triggers:
t.end_trigger(self.root_ctx)
# --- Helpers ---
def _new_ctx(self, origin, args, layer, parent):
return AnnotationWalkerCtx(origin, args, layer, parent, self._allowed_types, self._allowed_annotations)
def _apply_triggers(self, method: str, ctx: AnnotationWalkerCtx) -> TriggerResult:
final = TriggerResult.passthrough()
for t in self._triggers:
res = getattr(t, method)(ctx)
if not res:
continue
if res.restart_with is not None:
return res # short-circuit on restart
if res.replace_with is not None:
final = TriggerResult.replace(res.replace_with)
if res.skip_children:
final = TriggerResult(
replace_with=final.replace_with,
skip_children=True,
)
return final
def _apply_exits(self, ctx: AnnotationWalkerCtx) -> Any | None:
"""
Run exits in order: type-specific (if implemented) then generic `process_exit`.
Only `replace_with` is honored at exit; last `replace_with` wins.
"""
final = None
for t in self._triggers:
res = t.process_exit(ctx)
if res and (res.replace_with is not None):
final = res.replace_with
return final
def _handle_with_triggers(
self,
trigger_name: str,
ctx: AnnotationWalkerCtx,
args_handler: Callable[[AnnotationWalkerCtx], Any] | None = None,
) -> Any:
# ENTER
self._apply_triggers("process_enter", ctx)
# SPECIFIC
res = self._apply_triggers(trigger_name, ctx)
if res.restart_with is not None:
return self._walk(res.restart_with, ctx.parent)
if res.replace_with is not None:
exit_val = self._apply_exits(ctx)
return exit_val if exit_val is not None else res.replace_with
node_value = None
if not res.skip_children:
if args_handler:
node_value = args_handler(ctx)
else:
# DEFAULT: descend once per schema arg; mark as positional arg
node_value = tuple(self._walk_child(a, ctx, arg_index=i, role="arg", token=i) for i, a in enumerate(ctx.args))
# EXIT
exit_val = self._apply_exits(ctx)
return exit_val if exit_val is not None else node_value
def _walk_args_tuple(self, ctx: AnnotationWalkerCtx):
# Tuple[T, ...] (variadic): one schema child, mark role='elem'
if len(ctx.args) == 2 and ctx.args[1] is Ellipsis:
return (
self._walk_child(ctx.args[0], ctx, arg_index=0, role=NodeRole.ELEM, token=None),
Ellipsis,
)
# Fixed tuple: each positional arg gets role='arg'
return tuple(self._walk_child(a, ctx, arg_index=i, role=NodeRole.ARG, token=i) for i, a in enumerate(ctx.args))
# --- Dispatcher ---
def _walk(self, type_: Any, parent_ctx: Optional[AnnotationWalkerCtx]) -> Any:
# For logs only: show the calling layer
# print(f"[{parent_ctx.layer if parent_ctx else 0}] walking through: {type_}")
origin = get_origin(type_) or type_
if origin is None:
origin = NoneType
if origin is Union:
origin = UnionType
if not isinstance(origin, type):
raise RuntimeError("Annotation must be using type(s), not instances")
args = get_args(type_)
# IMPORTANT:
# If caller (_walk_child) already constructed a child ctx with edge metadata,
# reuse that object as *the* ctx for this node instead of allocating a new one.
if isinstance(parent_ctx, AnnotationWalkerCtx) and parent_ctx.origin is origin and parent_ctx.args == args:
ctx = parent_ctx
else:
# Root or internal calls that didn't prebuild the ctx
layer = 0 if parent_ctx is None else parent_ctx.layer + 1
ctx = self._new_ctx(origin, args, layer, parent_ctx)
# Remember root ctx for end_trigger()
if ctx.parent is None:
self.root_ctx = ctx
# print(origin)
match origin:
case typing.Annotated:
# inner type gets role='annotated'
return self._handle_with_triggers(
"process_annotated",
ctx,
args_handler=lambda c: (
self._walk_child(c.args[0], c, arg_index=0, role=NodeRole.ANNO, token=None) if c.args else None
),
)
case types.UnionType:
# branches get role='branch' and token=branch index
return self._handle_with_triggers(
"process_union",
ctx,
args_handler=lambda c: tuple(
self._walk_child(a, c, arg_index=i, role=NodeRole.BRANCH, token=i) for i, a in enumerate(c.args)
),
)
case _ if issubclass(origin, dict):
# arg0=key (role='key'), arg1=value (role='val')
return self._handle_with_triggers(
"process_dict",
ctx,
args_handler=lambda c: (
self._walk_child(c.args[0], c, arg_index=0, role=NodeRole.KEY, token=None),
self._walk_child(c.args[1], c, arg_index=1, role=NodeRole.VAL, token=None),
),
)
case _ if issubclass(origin, tuple):
return self._handle_with_triggers("process_tuple", ctx, self._walk_args_tuple)
case _ if issubclass(origin, list):
# single child T with role='elem'
return self._handle_with_triggers(
"process_list",
ctx,
args_handler=lambda c: (
self._walk_child(c.args[0], c, arg_index=0, role=NodeRole.ELEM, token=None) if c.args else None
),
)
case _ if issubclass(origin, set):
# single child T with role='elem'
return self._handle_with_triggers(
"process_set",
ctx,
args_handler=lambda c: (
self._walk_child(c.args[0], c, arg_index=0, role=NodeRole.ELEM, token=None) if c.args else None
),
)
case _ if origin in self._allowed_types:
return self._handle_with_triggers("process_simple", ctx)
case _:
res = self._apply_triggers("process_unknown", ctx)
if res.restart_with is not None:
return self._walk(res.restart_with, ctx.parent)
if res.replace_with is not None:
return res.replace_with
raise RuntimeError(f"Not supported Field: {ctx.origin}, Supported list: {self._allowed_types}")
def _walk_child(
self,
type_expr: Any,
parent_ctx: AnnotationWalkerCtx,
*,
arg_index: int,
role: str | None,
token: Any | None,
) -> Any:
origin = get_origin(type_expr) or type_expr
if origin is None:
origin = NoneType
if origin is Union:
origin = UnionType
if not isinstance(origin, type):
raise RuntimeError("Annotation must be using type(s), not instances")
args = get_args(type_expr)
child_ctx = self._new_ctx(origin, args, parent_ctx.layer + 1, parent_ctx)
# stamp routing metadata for triggers
child_ctx._set_edge(role=role, token=token, arg_index=arg_index)
# IMPORTANT: recurse with the CHILD as the parent_ctx for the next step,
# so the walker uses this child ctx (with edge metadata & incremented layer).
return self._walk(type_expr, child_ctx)

20
test/test_test_module.py
View File

@@ -8,8 +8,8 @@
import unittest
from os import chdir
from io import StringIO
from contextlib import redirect_stdout,redirect_stderr
from io import StringIO
from contextlib import redirect_stdout, redirect_stderr
from pathlib import Path
print(__name__)
@@ -20,16 +20,14 @@ from src import anytraverser
testdir_path = Path(__file__).parent.resolve()
chdir(testdir_path.parent.resolve())
class Testtest_module(unittest.TestCase):
def setUp(self) -> None:
chdir(testdir_path.parent.resolve())
def test_version(self):
self.assertNotEqual(anytraverser.__version__,"?.?.?")
def test_test_module(self):
with redirect_stdout(StringIO()) as capted_stdout, redirect_stderr(StringIO()) as capted_stderr:
self.assertEqual(anytraverser.test_function(41),42)
self.assertEqual(len(capted_stderr.getvalue()),0)
self.assertEqual(capted_stdout.getvalue().strip(),"Hello world !")
def test_version(self):
ann = list[int | str | list[int | float]]
value = [1, "un", 2, "deux", [1, 2, "q"]]
trig = anytraverser.DataValidation(value)
walker = anytraverser.walkers.annotation_walker.AnnotationWalker(ann, (trig,))
walker.run()