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 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 491x 491x 491x 491x 491x 491x 491x 491x 491x 491x 491x 491x 491x 491x 1x 1x 491x 491x 491x 491x 491x 491x 491x 491x 491x 491x 491x 491x 491x 491x 27x 27x 27x 27x 27x 27x 27x 27x 27x 27x 27x 27x 27x 27x 27x 27x 491x 464x 464x 491x | /** @import { BlockStatement, Expression, Pattern, Statement } from 'estree' */
/** @import { AST } from '#compiler' */
/** @import { ComponentContext } from '../types.js' */
import { BLOCK_OPEN_ELSE } from '../../../../../internal/server/hydration.js';
import * as b from '../../../../utils/builders.js';
import { block_close, block_open } from './shared/utils.js';
/**
* @param {AST.EachBlock} node
* @param {ComponentContext} context
*/
export function EachBlock(node, context) {
const state = context.state;
const each_node_meta = node.metadata;
const collection = /** @type {Expression} */ (context.visit(node.expression));
const index =
each_node_meta.contains_group_binding || !node.index ? each_node_meta.index : b.id(node.index);
const array_id = state.scope.root.unique('each_array');
state.init.push(b.const(array_id, b.call('$.ensure_array_like', collection)));
/** @type {Statement[]} */
const each = [b.let(/** @type {Pattern} */ (node.context), b.member(array_id, index, true))];
if (index.name !== node.index && node.index != null) {
each.push(b.let(node.index, index));
}
each.push(.../** @type {BlockStatement} */ (context.visit(node.body)).body);
const for_loop = b.for(
b.declaration('let', [
b.declarator(index, b.literal(0)),
b.declarator('$$length', b.member(array_id, 'length'))
]),
b.binary('<', index, b.id('$$length')),
b.update('++', index, false),
b.block(each)
);
if (node.fallback) {
const open = b.stmt(b.assignment('+=', b.id('$$payload.out'), block_open));
const fallback = /** @type {BlockStatement} */ (context.visit(node.fallback));
fallback.body.unshift(
b.stmt(b.assignment('+=', b.id('$$payload.out'), b.literal(BLOCK_OPEN_ELSE)))
);
state.template.push(
b.if(
b.binary('!==', b.member(array_id, 'length'), b.literal(0)),
b.block([open, for_loop]),
fallback
),
block_close
);
} else {
state.template.push(block_open, for_loop, block_close);
}
}
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