Press n or j to go to the next uncovered block, b, p or k for the previous block.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 9793x 9793x 9793x 9793x 9793x 9793x 9793x 9793x 9793x 9793x 9793x 9793x 9793x 9793x 9793x 9793x 9793x 9793x 20x 20x 14x 20x 6x 6x 20x 9793x 9793x 9793x 2x 2x 2x 2x 2x 2x 2x 2x 5216x 5216x 5216x 5216x 2x 2x 2x 2x 2x 15523x 15523x 15523x 15523x 15523x 10x 10x 14x 14x 10x 15523x 2x 2x 2x 2x 2x 2x 15509x 15509x 15509x 15509x 15509x 15509x 15509x 15509x 15509x 15509x 15509x 15509x 15509x 15509x 15355x 15355x 15355x 15355x 15509x 2x 2x 2x 2x 2x 2x 14x 14x 14x 14x 14x 14x 14x 14x 14x 14x 14x 14x 14x 14x | import { CLEAN, DERIVED, DESTROYED, DIRTY, MAYBE_DIRTY, UNOWNED } from '../constants.js'; import { current_reaction, current_effect, remove_reactions, set_signal_status, mark_reactions, current_skip_reaction, execute_reaction_fn, destroy_effect_children, increment_version } from '../runtime.js'; import { equals, safe_equals } from './equality.js'; export let updating_derived = false; /** * @template V * @param {() => V} fn * @returns {import('#client').Derived<V>} */ /*#__NO_SIDE_EFFECTS__*/ export function derived(fn) { let flags = DERIVED | DIRTY; if (current_effect === null) flags |= UNOWNED; /** @type {import('#client').Derived<V>} */ const signal = { deps: null, deriveds: null, equals, f: flags, first: null, fn, last: null, reactions: null, v: /** @type {V} */ (null), version: 0 }; if (current_reaction !== null && (current_reaction.f & DERIVED) !== 0) { var current_derived = /** @type {import('#client').Derived<V>} */ (current_reaction); if (current_derived.deriveds === null) { current_derived.deriveds = [signal]; } else { current_derived.deriveds.push(signal); } } return signal; } /** * @template V * @param {() => V} fn * @returns {import('#client').Derived<V>} */ /*#__NO_SIDE_EFFECTS__*/ export function derived_safe_equal(fn) { const signal = derived(fn); signal.equals = safe_equals; return signal; } /** * @param {import('#client').Derived} signal * @returns {void} */ function destroy_derived_children(signal) { destroy_effect_children(signal); var deriveds = signal.deriveds; if (deriveds !== null) { signal.deriveds = null; for (var i = 0; i < deriveds.length; i += 1) { destroy_derived(deriveds[i]); } } } /** * @param {import('#client').Derived} derived * @returns {void} */ export function update_derived(derived) { var previous_updating_derived = updating_derived; updating_derived = true; destroy_derived_children(derived); var value = execute_reaction_fn(derived); updating_derived = previous_updating_derived; var status = (current_skip_reaction || (derived.f & UNOWNED) !== 0) && derived.deps !== null ? MAYBE_DIRTY : CLEAN; set_signal_status(derived, status); if (!derived.equals(value)) { derived.v = value; derived.version = increment_version(); mark_reactions(derived, DIRTY, false); } } /** * @param {import('#client').Derived} signal * @returns {void} */ export function destroy_derived(signal) { destroy_derived_children(signal); remove_reactions(signal, 0); set_signal_status(signal, DESTROYED); // TODO we need to ensure we remove the derived from any parent derives signal.first = signal.last = signal.deps = signal.reactions = // @ts-expect-error `signal.fn` cannot be `null` while the signal is alive signal.fn = null; } |