Ryth Azhur
3aafec6dd4
The IR called them react-message and django-message, so a FastAPI channel had to declare a DjangoMessage. They are client-message and server-message now, and the direction words hold wherever a channel is declared: Params / ClientMessage / ServerMessage, with mizan-core deriving <Pascal>Params and friends so no backend names a type itself. Django's ReactChannel and FastAPI's ReactChannel are both Channel. mizan-fastapi never registered a channels extension, so build_ir() emitted no channel at all and every payload type was invisible to codegen. It registers one now. RegistryExtension is an ABC requiring all(), which is what the IR reads — an extension that cannot enumerate its registrations no longer exists. The gate that should have caught the rename could not: tests/afi registered no channel because mizan-rust had no channel registry to register one in, so a five-package rename of the wire contract passed byte-parity without a channel byte crossing it. mizan-rust grows ChannelSlotKind, a CHANNELS slice, a #[mizan::channel] macro, and KDL emission whose wire_to_pascal matches Python's split; the AFI fixture now carries a channel with every slot and one with a single slot, so all three backends prove the contract byte for byte. MizanChannel held three Option<String> beside three has_*() predicates and unwrapped them with defaults; it holds an ordered slot vector, so an absent slot is absent rather than defaulted. The channels target emitted a React hooks file that a stage1-only consumer could not compile — react emits that now. The codegen's parity tests byte-compared emitted source against baselines without ever compiling it: they compile the generated crate and run its tests, import the generated Python package and call every method, and typecheck each TypeScript target against a consumer. Also fixed at source: app_visitor printed its import diagnostic to stdout, the stream export_mizan_ir writes KDL to, so a failed import silently corrupted the IR; the apps root was hardcoded to "apps"; _default_literal crashed build_ir on any non-JSON-serializable field default; Django and mizan-core derived Pascal names two different ways, disagreeing on every dotted channel name. ir.py builds a document and renders templates/ir/document.kdl.j2 rather than appending KDL strings with hand-tracked indentation, and named types resolve to a fixed point — a model reachable only through a union branch was referenced by a ref that no type block ever defined. The rest is the write-gate's own classifiers run over the standing tree: relative imports, silent swallows, Protocol contracts that should be ABCs, emitters hand-rendering target source, catch-all arms over closed enums, and comments narrating the project rather than the code. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
47 lines
1.7 KiB
Python
47 lines
1.7 KiB
Python
"""Import target for the generated client's `from mizan_rust import ...`.
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The real module is a compiled PyO3 extension; this one records each call so the
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driver can read the name and payload the generated method sent, and replies with
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whatever `reply` currently holds.
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"""
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from typing import Any, Callable
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class PyContextSubscription:
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def __init__(self, name: str, params: dict[str, Any],
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callback: Callable[[dict[str, Any]], None]) -> None:
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self.name = name
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self.params = params
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self.callback = callback
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class PyMizanClient:
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def __init__(self, base_url: str, *, session: bool,
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csrf_cookie_name: str, csrf_header_name: str) -> None:
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self.base_url = base_url
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self.session = session
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self.csrf_cookie_name = csrf_cookie_name
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self.csrf_header_name = csrf_header_name
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self.calls: list[tuple[str, dict[str, Any]]] = []
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self.invalidated: list[tuple[str, dict[str, Any] | None]] = []
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self.reply: Any = None
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def call(self, name: str, args: dict[str, Any]) -> Any:
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self.calls.append((name, args))
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return self.reply
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def fetch_context(self, name: str, params: dict[str, Any]) -> Any:
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self.calls.append((name, params))
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return self.reply
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def subscribe_context(self, name: str, params: dict[str, Any],
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callback: Callable[[dict[str, Any]], None]) -> PyContextSubscription:
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return PyContextSubscription(name, params, callback)
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def invalidate(self, context: str) -> None:
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self.invalidated.append((context, None))
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def invalidate_scoped(self, context: str, params: dict[str, Any]) -> None:
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self.invalidated.append((context, params))
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