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>
67 lines
2.5 KiB
Django/Jinja
67 lines
2.5 KiB
Django/Jinja
import { ref, computed, onMounted, onUnmounted, onServerPrefetch, type ComputedRef } from 'vue'
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import { registerContext, type ContextState } from '@mizan/base'
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{% if !stage1_imports.is_empty() -%}
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import {
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{%- for p in stage1_imports.contexts %} fetch{{ p }}Context, type {{ p }}ContextData, type {{ p }}ContextParams,{% endfor %}
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{%- for p in stage1_imports.calls %} call{{ p }},{% endfor %}
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{%- for t in stage1_imports.context_output_types %} type {{ t }},{% endfor %} } from '../index'
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{% endif -%}
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{% for ctx in contexts -%}
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export function use{{ ctx.pascal }}Context({% if ctx.has_params %}params: {{ ctx.pascal }}ContextParams{% endif %}) {
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const state = ref<ContextState<{{ ctx.pascal }}ContextData>>({ data: null, status: 'idle', error: null })
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let handle: ReturnType<typeof registerContext> | null = null
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onMounted(() => {
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handle = registerContext('{{ ctx.name }}', {{ ctx.params_arg }}, () => fetch{{ ctx.pascal }}Context({{ ctx.params_arg }}))
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handle.subscribe(() => { state.value = handle!.getState() })
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handle.refetch()
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})
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onServerPrefetch(async () => {
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handle = registerContext('{{ ctx.name }}', {{ ctx.params_arg }}, () => fetch{{ ctx.pascal }}Context({{ ctx.params_arg }}))
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await handle.refetch()
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state.value = handle.getState()
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})
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onUnmounted(() => { handle?.unregister() })
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return {
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state,
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{%- for fn in ctx.fns %}
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{{ fn.camel_name }}: computed(() => state.value.data?.{{ fn.name }} ?? null) as ComputedRef<{{ fn.output_type }} | null>,
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{%- endfor %}
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loading: computed(() => state.value.status === 'loading'),
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error: computed(() => state.value.error),
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}
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}
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{% endfor -%}
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{% for call in calls -%}
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export function use{{ call.pascal }}() {
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const isPending = ref(false)
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const error = ref<Error | null>(null)
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{%- if call.has_input %}
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async function mutate(args: Parameters<typeof call{{ call.pascal }}>[0]) {
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isPending.value = true; error.value = null
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try { return await call{{ call.pascal }}(args) }
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catch (e) { error.value = e as Error; throw e }
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finally { isPending.value = false }
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}
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{%- else %}
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async function mutate() {
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isPending.value = true; error.value = null
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try { return await call{{ call.pascal }}() }
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catch (e) { error.value = e as Error; throw e }
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finally { isPending.value = false }
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}
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{%- endif %}
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return { mutate, isPending, error }
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}
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{% endfor -%}
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export type { ContextState } from '@mizan/base'
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export { configure, initSession, MizanError } from '@mizan/base'
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