giles
ab75e505a8
Phase 1 — Macros: defmacro + quasiquote syntax (`, ,, ,@) in parser,
evaluator, HTML renderer, and JS mirror. Macro type, expansion, and
round-trip serialization.
Phase 2 — Expanded primitives: app-url, url-for, asset-url, config,
format-date, parse-int (pure); service, request-arg, request-path,
nav-tree, get-children (I/O); jinja-global, relations-from (pure).
Updated _io_service to accept (service "registry-name" "method" :kwargs)
with auto kebab→snake conversion. DTO-to-dict now expands datetime fields
into year/month/day convenience keys. Tuple returns converted to lists.
Phase 3 — Declarative handlers: HandlerDef type, defhandler special form,
handler registry (service → name → HandlerDef), async evaluator+renderer
(async_eval.py) that awaits I/O primitives inline within control flow.
Handler loading from .sx files, execute_handler, blueprint factory.
Phase 4 — Convert all fragment routes: 13 Python fragment handlers across
8 services replaced with declarative .sx handler files. All routes.py
simplified to uniform sx dispatch pattern. Two Jinja HTML handlers
(events/container-cards, events/account-page) kept as Python.
New files: shared/sx/async_eval.py, shared/sx/handlers.py,
shared/sx/tests/test_handlers.py, plus 13 handler .sx files under
{service}/sx/handlers/. MarketService.product_by_slug() added.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
71 lines
1.2 KiB
Python
71 lines
1.2 KiB
Python
"""
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S-expression language core.
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Parse, evaluate, and serialize s-expressions. This package provides the
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foundation for the composable fragment architecture described in
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``docs/sx-architecture-plan.md``.
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Quick start::
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from shared.sx import parse, evaluate, serialize, Symbol, Keyword
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expr = parse('(let ((x 10)) (+ x 1))')
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result = evaluate(expr) # → 11
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expr2 = parse('(map (fn (n) (* n n)) (list 1 2 3))')
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result2 = evaluate(expr2) # → [1, 4, 9]
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"""
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from .types import (
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NIL,
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Component,
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HandlerDef,
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Keyword,
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Lambda,
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Macro,
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Symbol,
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)
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from .parser import (
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ParseError,
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parse,
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parse_all,
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serialize,
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)
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from .evaluator import (
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EvalError,
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evaluate,
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make_env,
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)
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from .primitives import (
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all_primitives,
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get_primitive,
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register_primitive,
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)
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from .env import Env
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__all__ = [
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# Types
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"Symbol",
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"Keyword",
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"Lambda",
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"Macro",
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"Component",
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"HandlerDef",
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"NIL",
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# Parser
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"parse",
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"parse_all",
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"serialize",
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"ParseError",
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# Evaluator
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"evaluate",
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"make_env",
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"EvalError",
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# Primitives
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"register_primitive",
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"get_primitive",
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"all_primitives",
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# Environment
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"Env",
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]
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