giles 342e1a2ccf scheme: Phase 7 — eval/interaction-environment/null-env + 13 tests [shapes-reflective] ...

runtime.sx binds R7RS reflective primitives:
- eval EXPR ENV
- interaction-environment        — returns env captured by closure
- null-environment VERSION       — fresh empty env (ignores version)
- scheme-report-environment N    — fresh full standard env
- environment? V

interaction-environment closes over the standard env being built;
each invocation of scheme-standard-env produces a distinct
interaction env that returns ITSELF when queried — so user-side
(define name expr) inside (eval ... (interaction-environment))
persists for subsequent (eval 'name ...) lookups.

13 tests cover:
- eval over quoted forms (literal + constructed via list)
- define-then-lookup through interaction-environment
- eqv? identity of interaction-environment across calls
- sandbox semantics: eval in null-environment errors on +
- scheme-report-environment is fresh and distinct from interaction

**Second consumer for lib/guest/reflective/evaluator.sx unlocked.**
Scheme's eval/interaction-environment/null-environment triple is
the same protocol Kernel exposes via eval-applicative /
get-current-environment / make-environment. Extraction now
satisfies the two-consumer rule — same playbook as env.sx and
class-chain.sx, awaits a follow-up commit to actually extract
the kit.

270 total Scheme tests (62 + 23 + 49 + 78 + 25 + 20 + 13).

2026-05-14 06:45:39 +00:00

3.4 KiB

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