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Island disposal, reactive lists, input binding, and Phase 2 plan

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- Effect and computed auto-register disposers with island scope via
  register-in-scope; dispose-islands-in called before every swap point
  (orchestration.sx) to clean up intervals/subscriptions on navigation.
- Map + deref inside islands auto-upgrades to reactive-list for signal-
  bound list rendering. Demo island with add/remove items.
- New :bind attribute for two-way signal-input binding (text, checkbox,
  radio, textarea, select). bind-input in adapter-dom.sx handles both
  signal→element (effect) and element→signal (event listener).
- Phase 2 plan page at /reactive-islands/phase2 covering input binding,
  keyed reconciliation, reactive class/style, refs, portals, error
  boundaries, suspense, and transitions.
- Updated status tables in overview and plan pages.
- Fixed stopwatch reset (fn body needs do wrapper for multiple exprs).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
giles
2026-03-08 16:10:52 +00:00
parent efc7e340da
commit 8683cf24c3
10 changed files with 543 additions and 59 deletions
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6
shared/sx/ref/sx_ref.py
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@@ -1339,7 +1339,7 @@ reset_b = lambda s, value: ((lambda old: (_sx_begin(signal_set_value(s, value),
swap_b = lambda s, f, *args: ((lambda old: (lambda new_val: (_sx_begin(signal_set_value(s, new_val), notify_subscribers(s)) if sx_truthy((not sx_truthy(is_identical(old, new_val)))) else NIL))(apply(f, cons(old, args))))(signal_value(s)) if sx_truthy(is_signal(s)) else NIL)
# computed
computed = lambda compute_fn: (lambda s: (lambda deps: (lambda compute_ctx: (lambda recompute: _sx_begin(recompute(), s))(_sx_fn(lambda : (
computed = lambda compute_fn: (lambda s: (lambda deps: (lambda compute_ctx: (lambda recompute: _sx_begin(recompute(), register_in_scope(lambda : dispose_computed(s)), s))(_sx_fn(lambda : (
for_each(lambda dep: signal_remove_sub(dep, recompute), signal_deps(s)),
signal_set_deps(s, []),
(lambda ctx: (lambda prev: _sx_begin(set_tracking_context(ctx), (lambda new_val: _sx_begin(set_tracking_context(prev), signal_set_deps(s, tracking_context_deps(ctx)), (lambda old: _sx_begin(signal_set_value(s, new_val), (notify_subscribers(s) if sx_truthy((not sx_truthy(is_identical(old, new_val)))) else NIL)))(signal_value(s))))(invoke(compute_fn))))(get_tracking_context()))(make_tracking_context(recompute))
@@ -1353,12 +1353,14 @@ def effect(effect_fn):
_cells['cleanup_fn'] = NIL
run_effect = lambda : (_sx_begin((invoke(_cells['cleanup_fn']) if sx_truthy(_cells['cleanup_fn']) else NIL), for_each(lambda dep: signal_remove_sub(dep, run_effect), _cells['deps']), _sx_cell_set(_cells, 'deps', []), (lambda ctx: (lambda prev: _sx_begin(set_tracking_context(ctx), (lambda result: _sx_begin(set_tracking_context(prev), _sx_cell_set(_cells, 'deps', tracking_context_deps(ctx)), (_sx_cell_set(_cells, 'cleanup_fn', result) if sx_truthy(is_callable(result)) else NIL)))(invoke(effect_fn))))(get_tracking_context()))(make_tracking_context(run_effect))) if sx_truthy((not sx_truthy(_cells['disposed']))) else NIL)
run_effect()
return _sx_fn(lambda : (
dispose_fn = _sx_fn(lambda : (
_sx_cell_set(_cells, 'disposed', True),
(invoke(_cells['cleanup_fn']) if sx_truthy(_cells['cleanup_fn']) else NIL),
for_each(lambda dep: signal_remove_sub(dep, run_effect), _cells['deps']),
_sx_cell_set(_cells, 'deps', [])
)[-1])
register_in_scope(dispose_fn)
return dispose_fn
# *batch-depth*
_batch_depth = 0