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 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 903x 411x 411x 903x 903x 903x 903x 903x 903x 903x 903x 903x 903x 903x 903x 903x 903x 903x 1925x 1685x 1685x 1685x 1685x 1925x 411x 411x 411x 1x 1x 1x 1x 1x 1x 1x 1x 411x 1685x 1925x 859x 50x 859x 809x 809x 858x 859x 58x 54x 58x 58x 1925x 826x 2x 826x 198x 198x 826x 826x 371x 297x 371x 371x 826x 1684x 1925x 1x 1x 1x 903x 903x 903x 411x 411x 903x | /** @import { Effect, TemplateNode } from '#client' */
import { EFFECT_TRANSPARENT } from '../../constants.js';
import {
hydrate_next,
hydrate_node,
hydrating,
remove_nodes,
set_hydrate_node,
set_hydrating
} from '../hydration.js';
import { block, branch, pause_effect, resume_effect } from '../../reactivity/effects.js';
import { HYDRATION_START_ELSE } from '../../../../constants.js';
/**
* @param {TemplateNode} node
* @param {() => boolean} get_condition
* @param {(anchor: Node) => void} consequent_fn
* @param {null | ((anchor: Node) => void)} [alternate_fn]
* @param {boolean} [elseif] True if this is an `{:else if ...}` block rather than an `{#if ...}`, as that affects which transitions are considered 'local'
* @returns {void}
*/
export function if_block(node, get_condition, consequent_fn, alternate_fn = null, elseif = false) {
if (hydrating) {
hydrate_next();
}
var anchor = node;
/** @type {Effect | null} */
var consequent_effect = null;
/** @type {Effect | null} */
var alternate_effect = null;
/** @type {boolean | null} */
var condition = null;
var flags = elseif ? EFFECT_TRANSPARENT : 0;
block(() => {
if (condition === (condition = !!get_condition())) return;
/** Whether or not there was a hydration mismatch. Needs to be a `let` or else it isn't treeshaken out */
let mismatch = false;
if (hydrating) {
const is_else = /** @type {Comment} */ (anchor).data === HYDRATION_START_ELSE;
if (condition === is_else) {
// Hydration mismatch: remove everything inside the anchor and start fresh.
// This could happen with `{#if browser}...{/if}`, for example
anchor = remove_nodes();
set_hydrate_node(anchor);
set_hydrating(false);
mismatch = true;
}
}
if (condition) {
if (consequent_effect) {
resume_effect(consequent_effect);
} else {
consequent_effect = branch(() => consequent_fn(anchor));
}
if (alternate_effect) {
pause_effect(alternate_effect, () => {
alternate_effect = null;
});
}
} else {
if (alternate_effect) {
resume_effect(alternate_effect);
} else if (alternate_fn) {
alternate_effect = branch(() => alternate_fn(anchor));
}
if (consequent_effect) {
pause_effect(consequent_effect, () => {
consequent_effect = null;
});
}
}
if (mismatch) {
// continue in hydration mode
set_hydrating(true);
}
}, flags);
if (hydrating) {
anchor = hydrate_node;
}
}
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