giles
29c90a625b
EvalError moved to types.py. All 27 files updated to import eval_expr, trampoline, call_lambda, etc. directly from shared.sx.ref.sx_ref instead of through the evaluator.py indirection layer. 320/320 spec tests pass. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
70 lines
1.3 KiB
Python
70 lines
1.3 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 .types import EvalError
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from .ref.sx_ref import evaluate, make_env
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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 . import primitives_stdlib # noqa: F401 — registers stdlib primitives
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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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