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 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 16x 18x 18x 18x 18x 18x 18x 18x 18x 16x 16x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | /** @import { Snippet } from 'svelte' */
/** @import { Effect, TemplateNode } from '#client' */
/** @import { Getters } from '#shared' */
import { EFFECT_TRANSPARENT } from '../../constants.js';
import { branch, block, destroy_effect, teardown } from '../../reactivity/effects.js';
import {
dev_current_component_function,
set_dev_current_component_function
} from '../../runtime.js';
import { hydrate_next, hydrate_node, hydrating } from '../hydration.js';
import { create_fragment_from_html } from '../reconciler.js';
import { assign_nodes } from '../template.js';
import * as w from '../../warnings.js';
import * as e from '../../errors.js';
import { DEV } from 'esm-env';
import { get_first_child, get_next_sibling } from '../operations.js';
import { noop } from '../../../shared/utils.js';
/**
* @template {(node: TemplateNode, ...args: any[]) => void} SnippetFn
* @param {TemplateNode} node
* @param {() => SnippetFn | null | undefined} get_snippet
* @param {(() => any)[]} args
* @returns {void}
*/
export function snippet(node, get_snippet, ...args) {
var anchor = node;
/** @type {SnippetFn | null | undefined} */
// @ts-ignore
var snippet = noop;
/** @type {Effect | null} */
var snippet_effect;
block(() => {
if (snippet === (snippet = get_snippet())) return;
if (snippet_effect) {
destroy_effect(snippet_effect);
snippet_effect = null;
}
if (DEV && snippet == null) {
e.invalid_snippet();
}
snippet_effect = branch(() => /** @type {SnippetFn} */ (snippet)(anchor, ...args));
}, EFFECT_TRANSPARENT);
if (hydrating) {
anchor = hydrate_node;
}
}
/**
* In development, wrap the snippet function so that it passes validation, and so that the
* correct component context is set for ownership checks
* @param {any} component
* @param {(node: TemplateNode, ...args: any[]) => void} fn
*/
export function wrap_snippet(component, fn) {
return (/** @type {TemplateNode} */ node, /** @type {any[]} */ ...args) => {
var previous_component_function = dev_current_component_function;
set_dev_current_component_function(component);
try {
return fn(node, ...args);
} finally {
set_dev_current_component_function(previous_component_function);
}
};
}
/**
* Create a snippet programmatically
* @template {unknown[]} Params
* @param {(...params: Getters<Params>) => {
* render: () => string
* setup?: (element: Element) => void | (() => void)
* }} fn
* @returns {Snippet<Params>}
*/
export function createRawSnippet(fn) {
// @ts-expect-error the types are a lie
return (/** @type {TemplateNode} */ anchor, /** @type {Getters<Params>} */ ...params) => {
var snippet = fn(...params);
/** @type {Element} */
var element;
if (hydrating) {
element = /** @type {Element} */ (hydrate_node);
hydrate_next();
} else {
var html = snippet.render().trim();
var fragment = create_fragment_from_html(html);
element = /** @type {Element} */ (get_first_child(fragment));
if (DEV && (get_next_sibling(element) !== null || element.nodeType !== 1)) {
w.invalid_raw_snippet_render();
}
anchor.before(element);
}
const result = snippet.setup?.(element);
assign_nodes(element, element);
if (typeof result === 'function') {
teardown(result);
}
};
}
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