aitbc
816e258d4c
Development Artifact Cleanup: ✅ BROTHER_NODE REORGANIZATION: Moved development test node to appropriate location - dev/test-nodes/brother_node/: Moved from root directory for better organization - Contains development configuration, test logs, and test chain data - No impact on production systems - purely development/testing artifact ✅ DEVELOPMENT ARTIFACTS IDENTIFIED: - Chain ID: aitbc-brother-chain (test/development chain) - Ports: 8010 (P2P) and 8011 (RPC) - different from production - Environment: .env file with test configuration - Logs: rpc.log and node.log from development testing session (March 15, 2026) ✅ ROOT DIRECTORY CLEANUP: Removed development clutter from production directory - brother_node/ moved to dev/test-nodes/brother_node/ - Root directory now contains only production-ready components - Development artifacts properly organized in dev/ subdirectory DIRECTORY STRUCTURE IMPROVEMENT: 📁 dev/test-nodes/: Development and testing node configurations 🏗️ Root Directory: Clean production structure with only essential components 🧪 Development Isolation: Test environments separated from production BENEFITS: ✅ Clean Production Directory: No development artifacts in root ✅ Better Organization: Development nodes grouped in dev/ subdirectory ✅ Clear Separation: Production vs development environments clearly distinguished ✅ Maintainability: Easier to identify and manage development components RESULT: Successfully moved brother_node development artifact to dev/test-nodes/ subdirectory, cleaning up the root directory while preserving development testing environment for future use.
1063 lines
33 KiB
Python
Executable File
1063 lines
33 KiB
Python
Executable File
"""The runtime functions and state used by compiled templates."""
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import functools
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import sys
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import typing as t
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from collections import abc
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from itertools import chain
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from markupsafe import escape # noqa: F401
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from markupsafe import Markup
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from markupsafe import soft_str
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from .async_utils import auto_aiter
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from .async_utils import auto_await # noqa: F401
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from .exceptions import TemplateNotFound # noqa: F401
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from .exceptions import TemplateRuntimeError # noqa: F401
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from .exceptions import UndefinedError
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from .nodes import EvalContext
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from .utils import _PassArg
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from .utils import concat
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from .utils import internalcode
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from .utils import missing
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from .utils import Namespace # noqa: F401
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from .utils import object_type_repr
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from .utils import pass_eval_context
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V = t.TypeVar("V")
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F = t.TypeVar("F", bound=t.Callable[..., t.Any])
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if t.TYPE_CHECKING:
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import logging
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import typing_extensions as te
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from .environment import Environment
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class LoopRenderFunc(te.Protocol):
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def __call__(
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self,
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reciter: t.Iterable[V],
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loop_render_func: "LoopRenderFunc",
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depth: int = 0,
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) -> str: ...
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# these variables are exported to the template runtime
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exported = [
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"LoopContext",
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"TemplateReference",
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"Macro",
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"Markup",
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"TemplateRuntimeError",
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"missing",
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"escape",
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"markup_join",
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"str_join",
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"identity",
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"TemplateNotFound",
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"Namespace",
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"Undefined",
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"internalcode",
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]
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async_exported = [
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"AsyncLoopContext",
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"auto_aiter",
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"auto_await",
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]
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def identity(x: V) -> V:
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"""Returns its argument. Useful for certain things in the
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environment.
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"""
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return x
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def markup_join(seq: t.Iterable[t.Any]) -> str:
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"""Concatenation that escapes if necessary and converts to string."""
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buf = []
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iterator = map(soft_str, seq)
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for arg in iterator:
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buf.append(arg)
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if hasattr(arg, "__html__"):
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return Markup("").join(chain(buf, iterator))
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return concat(buf)
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def str_join(seq: t.Iterable[t.Any]) -> str:
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"""Simple args to string conversion and concatenation."""
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return concat(map(str, seq))
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def new_context(
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environment: "Environment",
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template_name: t.Optional[str],
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blocks: t.Dict[str, t.Callable[["Context"], t.Iterator[str]]],
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vars: t.Optional[t.Dict[str, t.Any]] = None,
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shared: bool = False,
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globals: t.Optional[t.MutableMapping[str, t.Any]] = None,
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locals: t.Optional[t.Mapping[str, t.Any]] = None,
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) -> "Context":
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"""Internal helper for context creation."""
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if vars is None:
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vars = {}
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if shared:
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parent = vars
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else:
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parent = dict(globals or (), **vars)
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if locals:
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# if the parent is shared a copy should be created because
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# we don't want to modify the dict passed
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if shared:
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parent = dict(parent)
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for key, value in locals.items():
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if value is not missing:
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parent[key] = value
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return environment.context_class(
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environment, parent, template_name, blocks, globals=globals
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)
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class TemplateReference:
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"""The `self` in templates."""
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def __init__(self, context: "Context") -> None:
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self.__context = context
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def __getitem__(self, name: str) -> t.Any:
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blocks = self.__context.blocks[name]
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return BlockReference(name, self.__context, blocks, 0)
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def __repr__(self) -> str:
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return f"<{type(self).__name__} {self.__context.name!r}>"
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def _dict_method_all(dict_method: F) -> F:
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@functools.wraps(dict_method)
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def f_all(self: "Context") -> t.Any:
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return dict_method(self.get_all())
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return t.cast(F, f_all)
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@abc.Mapping.register
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class Context:
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"""The template context holds the variables of a template. It stores the
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values passed to the template and also the names the template exports.
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Creating instances is neither supported nor useful as it's created
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automatically at various stages of the template evaluation and should not
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be created by hand.
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The context is immutable. Modifications on :attr:`parent` **must not**
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happen and modifications on :attr:`vars` are allowed from generated
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template code only. Template filters and global functions marked as
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:func:`pass_context` get the active context passed as first argument
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and are allowed to access the context read-only.
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The template context supports read only dict operations (`get`,
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`keys`, `values`, `items`, `iterkeys`, `itervalues`, `iteritems`,
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`__getitem__`, `__contains__`). Additionally there is a :meth:`resolve`
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method that doesn't fail with a `KeyError` but returns an
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:class:`Undefined` object for missing variables.
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"""
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def __init__(
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self,
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environment: "Environment",
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parent: t.Dict[str, t.Any],
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name: t.Optional[str],
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blocks: t.Dict[str, t.Callable[["Context"], t.Iterator[str]]],
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globals: t.Optional[t.MutableMapping[str, t.Any]] = None,
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):
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self.parent = parent
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self.vars: t.Dict[str, t.Any] = {}
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self.environment: Environment = environment
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self.eval_ctx = EvalContext(self.environment, name)
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self.exported_vars: t.Set[str] = set()
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self.name = name
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self.globals_keys = set() if globals is None else set(globals)
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# create the initial mapping of blocks. Whenever template inheritance
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# takes place the runtime will update this mapping with the new blocks
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# from the template.
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self.blocks = {k: [v] for k, v in blocks.items()}
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def super(
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self, name: str, current: t.Callable[["Context"], t.Iterator[str]]
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) -> t.Union["BlockReference", "Undefined"]:
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"""Render a parent block."""
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try:
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blocks = self.blocks[name]
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index = blocks.index(current) + 1
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blocks[index]
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except LookupError:
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return self.environment.undefined(
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f"there is no parent block called {name!r}.", name="super"
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)
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return BlockReference(name, self, blocks, index)
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def get(self, key: str, default: t.Any = None) -> t.Any:
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"""Look up a variable by name, or return a default if the key is
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not found.
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:param key: The variable name to look up.
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:param default: The value to return if the key is not found.
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"""
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try:
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return self[key]
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except KeyError:
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return default
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def resolve(self, key: str) -> t.Union[t.Any, "Undefined"]:
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"""Look up a variable by name, or return an :class:`Undefined`
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object if the key is not found.
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If you need to add custom behavior, override
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:meth:`resolve_or_missing`, not this method. The various lookup
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functions use that method, not this one.
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:param key: The variable name to look up.
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"""
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rv = self.resolve_or_missing(key)
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if rv is missing:
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return self.environment.undefined(name=key)
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return rv
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def resolve_or_missing(self, key: str) -> t.Any:
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"""Look up a variable by name, or return a ``missing`` sentinel
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if the key is not found.
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Override this method to add custom lookup behavior.
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:meth:`resolve`, :meth:`get`, and :meth:`__getitem__` use this
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method. Don't call this method directly.
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:param key: The variable name to look up.
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"""
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if key in self.vars:
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return self.vars[key]
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if key in self.parent:
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return self.parent[key]
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return missing
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def get_exported(self) -> t.Dict[str, t.Any]:
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"""Get a new dict with the exported variables."""
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return {k: self.vars[k] for k in self.exported_vars}
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def get_all(self) -> t.Dict[str, t.Any]:
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"""Return the complete context as dict including the exported
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variables. For optimizations reasons this might not return an
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actual copy so be careful with using it.
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"""
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if not self.vars:
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return self.parent
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if not self.parent:
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return self.vars
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return dict(self.parent, **self.vars)
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@internalcode
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def call(
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__self,
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__obj: t.Callable[..., t.Any],
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*args: t.Any,
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**kwargs: t.Any, # noqa: B902
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) -> t.Union[t.Any, "Undefined"]:
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"""Call the callable with the arguments and keyword arguments
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provided but inject the active context or environment as first
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argument if the callable has :func:`pass_context` or
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:func:`pass_environment`.
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"""
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if __debug__:
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__traceback_hide__ = True # noqa
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# Allow callable classes to take a context
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if (
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hasattr(__obj, "__call__") # noqa: B004
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and _PassArg.from_obj(__obj.__call__) is not None
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):
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__obj = __obj.__call__
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pass_arg = _PassArg.from_obj(__obj)
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if pass_arg is _PassArg.context:
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# the active context should have access to variables set in
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# loops and blocks without mutating the context itself
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if kwargs.get("_loop_vars"):
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__self = __self.derived(kwargs["_loop_vars"])
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if kwargs.get("_block_vars"):
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__self = __self.derived(kwargs["_block_vars"])
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args = (__self,) + args
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elif pass_arg is _PassArg.eval_context:
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args = (__self.eval_ctx,) + args
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elif pass_arg is _PassArg.environment:
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args = (__self.environment,) + args
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kwargs.pop("_block_vars", None)
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kwargs.pop("_loop_vars", None)
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try:
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return __obj(*args, **kwargs)
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except StopIteration:
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return __self.environment.undefined(
|
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"value was undefined because a callable raised a"
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" StopIteration exception"
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)
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|
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def derived(self, locals: t.Optional[t.Dict[str, t.Any]] = None) -> "Context":
|
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"""Internal helper function to create a derived context. This is
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used in situations where the system needs a new context in the same
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template that is independent.
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"""
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context = new_context(
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self.environment, self.name, {}, self.get_all(), True, None, locals
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)
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context.eval_ctx = self.eval_ctx
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context.blocks.update((k, list(v)) for k, v in self.blocks.items())
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return context
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keys = _dict_method_all(dict.keys)
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values = _dict_method_all(dict.values)
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items = _dict_method_all(dict.items)
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|
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def __contains__(self, name: str) -> bool:
|
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return name in self.vars or name in self.parent
|
|
|
|
def __getitem__(self, key: str) -> t.Any:
|
|
"""Look up a variable by name with ``[]`` syntax, or raise a
|
|
``KeyError`` if the key is not found.
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|
"""
|
|
item = self.resolve_or_missing(key)
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|
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if item is missing:
|
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raise KeyError(key)
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|
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return item
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|
|
def __repr__(self) -> str:
|
|
return f"<{type(self).__name__} {self.get_all()!r} of {self.name!r}>"
|
|
|
|
|
|
class BlockReference:
|
|
"""One block on a template reference."""
|
|
|
|
def __init__(
|
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self,
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name: str,
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context: "Context",
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stack: t.List[t.Callable[["Context"], t.Iterator[str]]],
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depth: int,
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) -> None:
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self.name = name
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self._context = context
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self._stack = stack
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self._depth = depth
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@property
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def super(self) -> t.Union["BlockReference", "Undefined"]:
|
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"""Super the block."""
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if self._depth + 1 >= len(self._stack):
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return self._context.environment.undefined(
|
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f"there is no parent block called {self.name!r}.", name="super"
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)
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return BlockReference(self.name, self._context, self._stack, self._depth + 1)
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|
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@internalcode
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|
async def _async_call(self) -> str:
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rv = self._context.environment.concat( # type: ignore
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[x async for x in self._stack[self._depth](self._context)] # type: ignore
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)
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if self._context.eval_ctx.autoescape:
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return Markup(rv)
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|
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return rv
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|
|
@internalcode
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def __call__(self) -> str:
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if self._context.environment.is_async:
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return self._async_call() # type: ignore
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rv = self._context.environment.concat( # type: ignore
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self._stack[self._depth](self._context)
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)
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|
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if self._context.eval_ctx.autoescape:
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return Markup(rv)
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|
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return rv
|
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|
|
|
|
class LoopContext:
|
|
"""A wrapper iterable for dynamic ``for`` loops, with information
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about the loop and iteration.
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"""
|
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|
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#: Current iteration of the loop, starting at 0.
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index0 = -1
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_length: t.Optional[int] = None
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_after: t.Any = missing
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_current: t.Any = missing
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_before: t.Any = missing
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_last_changed_value: t.Any = missing
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|
|
|
def __init__(
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self,
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iterable: t.Iterable[V],
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undefined: t.Type["Undefined"],
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recurse: t.Optional["LoopRenderFunc"] = None,
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depth0: int = 0,
|
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) -> None:
|
|
"""
|
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:param iterable: Iterable to wrap.
|
|
:param undefined: :class:`Undefined` class to use for next and
|
|
previous items.
|
|
:param recurse: The function to render the loop body when the
|
|
loop is marked recursive.
|
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:param depth0: Incremented when looping recursively.
|
|
"""
|
|
self._iterable = iterable
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self._iterator = self._to_iterator(iterable)
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self._undefined = undefined
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self._recurse = recurse
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#: How many levels deep a recursive loop currently is, starting at 0.
|
|
self.depth0 = depth0
|
|
|
|
@staticmethod
|
|
def _to_iterator(iterable: t.Iterable[V]) -> t.Iterator[V]:
|
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return iter(iterable)
|
|
|
|
@property
|
|
def length(self) -> int:
|
|
"""Length of the iterable.
|
|
|
|
If the iterable is a generator or otherwise does not have a
|
|
size, it is eagerly evaluated to get a size.
|
|
"""
|
|
if self._length is not None:
|
|
return self._length
|
|
|
|
try:
|
|
self._length = len(self._iterable) # type: ignore
|
|
except TypeError:
|
|
iterable = list(self._iterator)
|
|
self._iterator = self._to_iterator(iterable)
|
|
self._length = len(iterable) + self.index + (self._after is not missing)
|
|
|
|
return self._length
|
|
|
|
def __len__(self) -> int:
|
|
return self.length
|
|
|
|
@property
|
|
def depth(self) -> int:
|
|
"""How many levels deep a recursive loop currently is, starting at 1."""
|
|
return self.depth0 + 1
|
|
|
|
@property
|
|
def index(self) -> int:
|
|
"""Current iteration of the loop, starting at 1."""
|
|
return self.index0 + 1
|
|
|
|
@property
|
|
def revindex0(self) -> int:
|
|
"""Number of iterations from the end of the loop, ending at 0.
|
|
|
|
Requires calculating :attr:`length`.
|
|
"""
|
|
return self.length - self.index
|
|
|
|
@property
|
|
def revindex(self) -> int:
|
|
"""Number of iterations from the end of the loop, ending at 1.
|
|
|
|
Requires calculating :attr:`length`.
|
|
"""
|
|
return self.length - self.index0
|
|
|
|
@property
|
|
def first(self) -> bool:
|
|
"""Whether this is the first iteration of the loop."""
|
|
return self.index0 == 0
|
|
|
|
def _peek_next(self) -> t.Any:
|
|
"""Return the next element in the iterable, or :data:`missing`
|
|
if the iterable is exhausted. Only peeks one item ahead, caching
|
|
the result in :attr:`_last` for use in subsequent checks. The
|
|
cache is reset when :meth:`__next__` is called.
|
|
"""
|
|
if self._after is not missing:
|
|
return self._after
|
|
|
|
self._after = next(self._iterator, missing)
|
|
return self._after
|
|
|
|
@property
|
|
def last(self) -> bool:
|
|
"""Whether this is the last iteration of the loop.
|
|
|
|
Causes the iterable to advance early. See
|
|
:func:`itertools.groupby` for issues this can cause.
|
|
The :func:`groupby` filter avoids that issue.
|
|
"""
|
|
return self._peek_next() is missing
|
|
|
|
@property
|
|
def previtem(self) -> t.Union[t.Any, "Undefined"]:
|
|
"""The item in the previous iteration. Undefined during the
|
|
first iteration.
|
|
"""
|
|
if self.first:
|
|
return self._undefined("there is no previous item")
|
|
|
|
return self._before
|
|
|
|
@property
|
|
def nextitem(self) -> t.Union[t.Any, "Undefined"]:
|
|
"""The item in the next iteration. Undefined during the last
|
|
iteration.
|
|
|
|
Causes the iterable to advance early. See
|
|
:func:`itertools.groupby` for issues this can cause.
|
|
The :func:`jinja-filters.groupby` filter avoids that issue.
|
|
"""
|
|
rv = self._peek_next()
|
|
|
|
if rv is missing:
|
|
return self._undefined("there is no next item")
|
|
|
|
return rv
|
|
|
|
def cycle(self, *args: V) -> V:
|
|
"""Return a value from the given args, cycling through based on
|
|
the current :attr:`index0`.
|
|
|
|
:param args: One or more values to cycle through.
|
|
"""
|
|
if not args:
|
|
raise TypeError("no items for cycling given")
|
|
|
|
return args[self.index0 % len(args)]
|
|
|
|
def changed(self, *value: t.Any) -> bool:
|
|
"""Return ``True`` if previously called with a different value
|
|
(including when called for the first time).
|
|
|
|
:param value: One or more values to compare to the last call.
|
|
"""
|
|
if self._last_changed_value != value:
|
|
self._last_changed_value = value
|
|
return True
|
|
|
|
return False
|
|
|
|
def __iter__(self) -> "LoopContext":
|
|
return self
|
|
|
|
def __next__(self) -> t.Tuple[t.Any, "LoopContext"]:
|
|
if self._after is not missing:
|
|
rv = self._after
|
|
self._after = missing
|
|
else:
|
|
rv = next(self._iterator)
|
|
|
|
self.index0 += 1
|
|
self._before = self._current
|
|
self._current = rv
|
|
return rv, self
|
|
|
|
@internalcode
|
|
def __call__(self, iterable: t.Iterable[V]) -> str:
|
|
"""When iterating over nested data, render the body of the loop
|
|
recursively with the given inner iterable data.
|
|
|
|
The loop must have the ``recursive`` marker for this to work.
|
|
"""
|
|
if self._recurse is None:
|
|
raise TypeError(
|
|
"The loop must have the 'recursive' marker to be called recursively."
|
|
)
|
|
|
|
return self._recurse(iterable, self._recurse, depth=self.depth)
|
|
|
|
def __repr__(self) -> str:
|
|
return f"<{type(self).__name__} {self.index}/{self.length}>"
|
|
|
|
|
|
class AsyncLoopContext(LoopContext):
|
|
_iterator: t.AsyncIterator[t.Any] # type: ignore
|
|
|
|
@staticmethod
|
|
def _to_iterator( # type: ignore
|
|
iterable: t.Union[t.Iterable[V], t.AsyncIterable[V]],
|
|
) -> t.AsyncIterator[V]:
|
|
return auto_aiter(iterable)
|
|
|
|
@property
|
|
async def length(self) -> int: # type: ignore
|
|
if self._length is not None:
|
|
return self._length
|
|
|
|
try:
|
|
self._length = len(self._iterable) # type: ignore
|
|
except TypeError:
|
|
iterable = [x async for x in self._iterator]
|
|
self._iterator = self._to_iterator(iterable)
|
|
self._length = len(iterable) + self.index + (self._after is not missing)
|
|
|
|
return self._length
|
|
|
|
@property
|
|
async def revindex0(self) -> int: # type: ignore
|
|
return await self.length - self.index
|
|
|
|
@property
|
|
async def revindex(self) -> int: # type: ignore
|
|
return await self.length - self.index0
|
|
|
|
async def _peek_next(self) -> t.Any:
|
|
if self._after is not missing:
|
|
return self._after
|
|
|
|
try:
|
|
self._after = await self._iterator.__anext__()
|
|
except StopAsyncIteration:
|
|
self._after = missing
|
|
|
|
return self._after
|
|
|
|
@property
|
|
async def last(self) -> bool: # type: ignore
|
|
return await self._peek_next() is missing
|
|
|
|
@property
|
|
async def nextitem(self) -> t.Union[t.Any, "Undefined"]:
|
|
rv = await self._peek_next()
|
|
|
|
if rv is missing:
|
|
return self._undefined("there is no next item")
|
|
|
|
return rv
|
|
|
|
def __aiter__(self) -> "AsyncLoopContext":
|
|
return self
|
|
|
|
async def __anext__(self) -> t.Tuple[t.Any, "AsyncLoopContext"]:
|
|
if self._after is not missing:
|
|
rv = self._after
|
|
self._after = missing
|
|
else:
|
|
rv = await self._iterator.__anext__()
|
|
|
|
self.index0 += 1
|
|
self._before = self._current
|
|
self._current = rv
|
|
return rv, self
|
|
|
|
|
|
class Macro:
|
|
"""Wraps a macro function."""
|
|
|
|
def __init__(
|
|
self,
|
|
environment: "Environment",
|
|
func: t.Callable[..., str],
|
|
name: str,
|
|
arguments: t.List[str],
|
|
catch_kwargs: bool,
|
|
catch_varargs: bool,
|
|
caller: bool,
|
|
default_autoescape: t.Optional[bool] = None,
|
|
):
|
|
self._environment = environment
|
|
self._func = func
|
|
self._argument_count = len(arguments)
|
|
self.name = name
|
|
self.arguments = arguments
|
|
self.catch_kwargs = catch_kwargs
|
|
self.catch_varargs = catch_varargs
|
|
self.caller = caller
|
|
self.explicit_caller = "caller" in arguments
|
|
|
|
if default_autoescape is None:
|
|
if callable(environment.autoescape):
|
|
default_autoescape = environment.autoescape(None)
|
|
else:
|
|
default_autoescape = environment.autoescape
|
|
|
|
self._default_autoescape = default_autoescape
|
|
|
|
@internalcode
|
|
@pass_eval_context
|
|
def __call__(self, *args: t.Any, **kwargs: t.Any) -> str:
|
|
# This requires a bit of explanation, In the past we used to
|
|
# decide largely based on compile-time information if a macro is
|
|
# safe or unsafe. While there was a volatile mode it was largely
|
|
# unused for deciding on escaping. This turns out to be
|
|
# problematic for macros because whether a macro is safe depends not
|
|
# on the escape mode when it was defined, but rather when it was used.
|
|
#
|
|
# Because however we export macros from the module system and
|
|
# there are historic callers that do not pass an eval context (and
|
|
# will continue to not pass one), we need to perform an instance
|
|
# check here.
|
|
#
|
|
# This is considered safe because an eval context is not a valid
|
|
# argument to callables otherwise anyway. Worst case here is
|
|
# that if no eval context is passed we fall back to the compile
|
|
# time autoescape flag.
|
|
if args and isinstance(args[0], EvalContext):
|
|
autoescape = args[0].autoescape
|
|
args = args[1:]
|
|
else:
|
|
autoescape = self._default_autoescape
|
|
|
|
# try to consume the positional arguments
|
|
arguments = list(args[: self._argument_count])
|
|
off = len(arguments)
|
|
|
|
# For information why this is necessary refer to the handling
|
|
# of caller in the `macro_body` handler in the compiler.
|
|
found_caller = False
|
|
|
|
# if the number of arguments consumed is not the number of
|
|
# arguments expected we start filling in keyword arguments
|
|
# and defaults.
|
|
if off != self._argument_count:
|
|
for name in self.arguments[len(arguments) :]:
|
|
try:
|
|
value = kwargs.pop(name)
|
|
except KeyError:
|
|
value = missing
|
|
if name == "caller":
|
|
found_caller = True
|
|
arguments.append(value)
|
|
else:
|
|
found_caller = self.explicit_caller
|
|
|
|
# it's important that the order of these arguments does not change
|
|
# if not also changed in the compiler's `function_scoping` method.
|
|
# the order is caller, keyword arguments, positional arguments!
|
|
if self.caller and not found_caller:
|
|
caller = kwargs.pop("caller", None)
|
|
if caller is None:
|
|
caller = self._environment.undefined("No caller defined", name="caller")
|
|
arguments.append(caller)
|
|
|
|
if self.catch_kwargs:
|
|
arguments.append(kwargs)
|
|
elif kwargs:
|
|
if "caller" in kwargs:
|
|
raise TypeError(
|
|
f"macro {self.name!r} was invoked with two values for the special"
|
|
" caller argument. This is most likely a bug."
|
|
)
|
|
raise TypeError(
|
|
f"macro {self.name!r} takes no keyword argument {next(iter(kwargs))!r}"
|
|
)
|
|
if self.catch_varargs:
|
|
arguments.append(args[self._argument_count :])
|
|
elif len(args) > self._argument_count:
|
|
raise TypeError(
|
|
f"macro {self.name!r} takes not more than"
|
|
f" {len(self.arguments)} argument(s)"
|
|
)
|
|
|
|
return self._invoke(arguments, autoescape)
|
|
|
|
async def _async_invoke(self, arguments: t.List[t.Any], autoescape: bool) -> str:
|
|
rv = await self._func(*arguments) # type: ignore
|
|
|
|
if autoescape:
|
|
return Markup(rv)
|
|
|
|
return rv # type: ignore
|
|
|
|
def _invoke(self, arguments: t.List[t.Any], autoescape: bool) -> str:
|
|
if self._environment.is_async:
|
|
return self._async_invoke(arguments, autoescape) # type: ignore
|
|
|
|
rv = self._func(*arguments)
|
|
|
|
if autoescape:
|
|
rv = Markup(rv)
|
|
|
|
return rv
|
|
|
|
def __repr__(self) -> str:
|
|
name = "anonymous" if self.name is None else repr(self.name)
|
|
return f"<{type(self).__name__} {name}>"
|
|
|
|
|
|
class Undefined:
|
|
"""The default undefined type. This can be printed, iterated, and treated as
|
|
a boolean. Any other operation will raise an :exc:`UndefinedError`.
|
|
|
|
>>> foo = Undefined(name='foo')
|
|
>>> str(foo)
|
|
''
|
|
>>> not foo
|
|
True
|
|
>>> foo + 42
|
|
Traceback (most recent call last):
|
|
...
|
|
jinja2.exceptions.UndefinedError: 'foo' is undefined
|
|
"""
|
|
|
|
__slots__ = (
|
|
"_undefined_hint",
|
|
"_undefined_obj",
|
|
"_undefined_name",
|
|
"_undefined_exception",
|
|
)
|
|
|
|
def __init__(
|
|
self,
|
|
hint: t.Optional[str] = None,
|
|
obj: t.Any = missing,
|
|
name: t.Optional[str] = None,
|
|
exc: t.Type[TemplateRuntimeError] = UndefinedError,
|
|
) -> None:
|
|
self._undefined_hint = hint
|
|
self._undefined_obj = obj
|
|
self._undefined_name = name
|
|
self._undefined_exception = exc
|
|
|
|
@property
|
|
def _undefined_message(self) -> str:
|
|
"""Build a message about the undefined value based on how it was
|
|
accessed.
|
|
"""
|
|
if self._undefined_hint:
|
|
return self._undefined_hint
|
|
|
|
if self._undefined_obj is missing:
|
|
return f"{self._undefined_name!r} is undefined"
|
|
|
|
if not isinstance(self._undefined_name, str):
|
|
return (
|
|
f"{object_type_repr(self._undefined_obj)} has no"
|
|
f" element {self._undefined_name!r}"
|
|
)
|
|
|
|
return (
|
|
f"{object_type_repr(self._undefined_obj)!r} has no"
|
|
f" attribute {self._undefined_name!r}"
|
|
)
|
|
|
|
@internalcode
|
|
def _fail_with_undefined_error(
|
|
self, *args: t.Any, **kwargs: t.Any
|
|
) -> "te.NoReturn":
|
|
"""Raise an :exc:`UndefinedError` when operations are performed
|
|
on the undefined value.
|
|
"""
|
|
raise self._undefined_exception(self._undefined_message)
|
|
|
|
@internalcode
|
|
def __getattr__(self, name: str) -> t.Any:
|
|
# Raise AttributeError on requests for names that appear to be unimplemented
|
|
# dunder methods to keep Python's internal protocol probing behaviors working
|
|
# properly in cases where another exception type could cause unexpected or
|
|
# difficult-to-diagnose failures.
|
|
if name[:2] == "__" and name[-2:] == "__":
|
|
raise AttributeError(name)
|
|
|
|
return self._fail_with_undefined_error()
|
|
|
|
__add__ = __radd__ = __sub__ = __rsub__ = _fail_with_undefined_error
|
|
__mul__ = __rmul__ = __div__ = __rdiv__ = _fail_with_undefined_error
|
|
__truediv__ = __rtruediv__ = _fail_with_undefined_error
|
|
__floordiv__ = __rfloordiv__ = _fail_with_undefined_error
|
|
__mod__ = __rmod__ = _fail_with_undefined_error
|
|
__pos__ = __neg__ = _fail_with_undefined_error
|
|
__call__ = __getitem__ = _fail_with_undefined_error
|
|
__lt__ = __le__ = __gt__ = __ge__ = _fail_with_undefined_error
|
|
__int__ = __float__ = __complex__ = _fail_with_undefined_error
|
|
__pow__ = __rpow__ = _fail_with_undefined_error
|
|
|
|
def __eq__(self, other: t.Any) -> bool:
|
|
return type(self) is type(other)
|
|
|
|
def __ne__(self, other: t.Any) -> bool:
|
|
return not self.__eq__(other)
|
|
|
|
def __hash__(self) -> int:
|
|
return id(type(self))
|
|
|
|
def __str__(self) -> str:
|
|
return ""
|
|
|
|
def __len__(self) -> int:
|
|
return 0
|
|
|
|
def __iter__(self) -> t.Iterator[t.Any]:
|
|
yield from ()
|
|
|
|
async def __aiter__(self) -> t.AsyncIterator[t.Any]:
|
|
for _ in ():
|
|
yield
|
|
|
|
def __bool__(self) -> bool:
|
|
return False
|
|
|
|
def __repr__(self) -> str:
|
|
return "Undefined"
|
|
|
|
|
|
def make_logging_undefined(
|
|
logger: t.Optional["logging.Logger"] = None, base: t.Type[Undefined] = Undefined
|
|
) -> t.Type[Undefined]:
|
|
"""Given a logger object this returns a new undefined class that will
|
|
log certain failures. It will log iterations and printing. If no
|
|
logger is given a default logger is created.
|
|
|
|
Example::
|
|
|
|
logger = logging.getLogger(__name__)
|
|
LoggingUndefined = make_logging_undefined(
|
|
logger=logger,
|
|
base=Undefined
|
|
)
|
|
|
|
.. versionadded:: 2.8
|
|
|
|
:param logger: the logger to use. If not provided, a default logger
|
|
is created.
|
|
:param base: the base class to add logging functionality to. This
|
|
defaults to :class:`Undefined`.
|
|
"""
|
|
if logger is None:
|
|
import logging
|
|
|
|
logger = logging.getLogger(__name__)
|
|
logger.addHandler(logging.StreamHandler(sys.stderr))
|
|
|
|
def _log_message(undef: Undefined) -> None:
|
|
logger.warning("Template variable warning: %s", undef._undefined_message)
|
|
|
|
class LoggingUndefined(base): # type: ignore
|
|
__slots__ = ()
|
|
|
|
def _fail_with_undefined_error( # type: ignore
|
|
self, *args: t.Any, **kwargs: t.Any
|
|
) -> "te.NoReturn":
|
|
try:
|
|
super()._fail_with_undefined_error(*args, **kwargs)
|
|
except self._undefined_exception as e:
|
|
logger.error("Template variable error: %s", e) # type: ignore
|
|
raise e
|
|
|
|
def __str__(self) -> str:
|
|
_log_message(self)
|
|
return super().__str__() # type: ignore
|
|
|
|
def __iter__(self) -> t.Iterator[t.Any]:
|
|
_log_message(self)
|
|
return super().__iter__() # type: ignore
|
|
|
|
def __bool__(self) -> bool:
|
|
_log_message(self)
|
|
return super().__bool__() # type: ignore
|
|
|
|
return LoggingUndefined
|
|
|
|
|
|
class ChainableUndefined(Undefined):
|
|
"""An undefined that is chainable, where both ``__getattr__`` and
|
|
``__getitem__`` return itself rather than raising an
|
|
:exc:`UndefinedError`.
|
|
|
|
>>> foo = ChainableUndefined(name='foo')
|
|
>>> str(foo.bar['baz'])
|
|
''
|
|
>>> foo.bar['baz'] + 42
|
|
Traceback (most recent call last):
|
|
...
|
|
jinja2.exceptions.UndefinedError: 'foo' is undefined
|
|
|
|
.. versionadded:: 2.11.0
|
|
"""
|
|
|
|
__slots__ = ()
|
|
|
|
def __html__(self) -> str:
|
|
return str(self)
|
|
|
|
def __getattr__(self, name: str) -> "ChainableUndefined":
|
|
# Raise AttributeError on requests for names that appear to be unimplemented
|
|
# dunder methods to avoid confusing Python with truthy non-method objects that
|
|
# do not implement the protocol being probed for. e.g., copy.copy(Undefined())
|
|
# fails spectacularly if getattr(Undefined(), '__setstate__') returns an
|
|
# Undefined object instead of raising AttributeError to signal that it does not
|
|
# support that style of object initialization.
|
|
if name[:2] == "__" and name[-2:] == "__":
|
|
raise AttributeError(name)
|
|
|
|
return self
|
|
|
|
def __getitem__(self, _name: str) -> "ChainableUndefined": # type: ignore[override]
|
|
return self
|
|
|
|
|
|
class DebugUndefined(Undefined):
|
|
"""An undefined that returns the debug info when printed.
|
|
|
|
>>> foo = DebugUndefined(name='foo')
|
|
>>> str(foo)
|
|
'{{ foo }}'
|
|
>>> not foo
|
|
True
|
|
>>> foo + 42
|
|
Traceback (most recent call last):
|
|
...
|
|
jinja2.exceptions.UndefinedError: 'foo' is undefined
|
|
"""
|
|
|
|
__slots__ = ()
|
|
|
|
def __str__(self) -> str:
|
|
if self._undefined_hint:
|
|
message = f"undefined value printed: {self._undefined_hint}"
|
|
|
|
elif self._undefined_obj is missing:
|
|
message = self._undefined_name # type: ignore
|
|
|
|
else:
|
|
message = (
|
|
f"no such element: {object_type_repr(self._undefined_obj)}"
|
|
f"[{self._undefined_name!r}]"
|
|
)
|
|
|
|
return f"{{{{ {message} }}}}"
|
|
|
|
|
|
class StrictUndefined(Undefined):
|
|
"""An undefined that barks on print and iteration as well as boolean
|
|
tests and all kinds of comparisons. In other words: you can do nothing
|
|
with it except checking if it's defined using the `defined` test.
|
|
|
|
>>> foo = StrictUndefined(name='foo')
|
|
>>> str(foo)
|
|
Traceback (most recent call last):
|
|
...
|
|
jinja2.exceptions.UndefinedError: 'foo' is undefined
|
|
>>> not foo
|
|
Traceback (most recent call last):
|
|
...
|
|
jinja2.exceptions.UndefinedError: 'foo' is undefined
|
|
>>> foo + 42
|
|
Traceback (most recent call last):
|
|
...
|
|
jinja2.exceptions.UndefinedError: 'foo' is undefined
|
|
"""
|
|
|
|
__slots__ = ()
|
|
__iter__ = __str__ = __len__ = Undefined._fail_with_undefined_error
|
|
__eq__ = __ne__ = __bool__ = __hash__ = Undefined._fail_with_undefined_error
|
|
__contains__ = Undefined._fail_with_undefined_error
|