Environment (templating.py)

Env (database): Flask⋅interface→Environment (t=jinja2?

from __future__ import annotations

import typing as t

from jinja2 import BaseLoader
from jinja2 import Environment as BaseEnvironment
from jinja2 import Template
from jinja2 import TemplateNotFound

from .ctx import AppContext
from .globals import app_ctx
from .helpers import stream_with_context
from .signals import before_render_template
from .signals import template_rendered

if t.TYPE_CHECKING:  # pragma: no cover
    from .sansio.app import App
    from .sansio.scaffold import Scaffold


def _default_template_ctx_processor() -> dict[str, t.Any]:
    """Default template context processor.  Replaces the ``request`` and ``g``
    proxies with their concrete objects for faster access.
    """
    ctx = app_ctx._get_current_object()
    rv: dict[str, t.Any] = {"g": ctx.g}

    if ctx.has_

... (truncated -- full source via MCP)