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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 9775x 9775x 9775x 9775x 9775x 9775x 9775x 9775x 9775x 9775x 9775x 9775x 9775x 9775x 9775x 9775x 9775x 9775x 9775x 9775x 9775x 9775x 16x 16x 12x 16x 4x 4x 16x 9775x 9775x 9775x 2x 2x 2x 2x 2x 2x 2x 2x 5214x 5214x 5214x 5214x 2x 2x 2x 2x 2x 15429x 15429x 15429x 15429x 15429x 8x 8x 10x 10x 8x 15429x 2x 2x 2x 2x 2x 2x 2x 15419x 15419x 15419x 15419x 15419x 15419x 15419x 15419x 15419x 15419x 15419x 15419x 15419x 15419x 15419x 15419x 15260x 15260x 15260x 15260x 1372x 1372x 15260x 15418x 15418x 15418x 2x 2x 2x 2x 2x 2x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x | import { DEV } from 'esm-env';
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
} 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 (DEV) {
/** @type {import('#client').DerivedDebug} */ (signal).inspect = new Set();
}
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
* @param {boolean} force_schedule
* @returns {boolean}
*/
export function update_derived(derived, force_schedule) {
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);
var is_equal = derived.equals(value);
if (!is_equal) {
derived.v = value;
mark_reactions(derived, DIRTY, force_schedule);
if (DEV && force_schedule) {
for (var fn of /** @type {import('#client').DerivedDebug} */ (derived).inspect) fn();
}
}
return is_equal;
}
/**
* @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;
}
|