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 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 990x 990x 990x 990x 990x 990x 990x 1x 1x 1x 989x 990x 223x 223x 223x 223x 989x 989x 989x 989x 989x 989x 989x 989x 989x 990x 986x 979x 979x 979x | /** @import { AST } from '#compiler' */
/** @import { Context } from '../types' */
/** @import { Scope } from '../../scope' */
import * as e from '../../../errors.js';
import { mark_subtree_dynamic } from './shared/fragment.js';
import { validate_block_not_empty, validate_opening_tag } from './shared/utils.js';
/**
* @param {AST.EachBlock} node
* @param {Context} context
*/
export function EachBlock(node, context) {
validate_opening_tag(node, context.state, '#');
validate_block_not_empty(node.body, context);
validate_block_not_empty(node.fallback, context);
const id = node.context;
if (id.type === 'Identifier' && (id.name === '$state' || id.name === '$derived')) {
// TODO weird that this is necessary
e.state_invalid_placement(node, id.name);
}
if (node.key) {
// treat `{#each items as item, i (i)}` as a normal indexed block, everything else as keyed
node.metadata.keyed =
node.key.type !== 'Identifier' || !node.index || node.key.name !== node.index;
}
// evaluate expression in parent scope
context.visit(node.expression, {
...context.state,
expression: node.metadata.expression,
scope: /** @type {Scope} */ (context.state.scope.parent)
});
context.visit(node.body);
if (node.key) context.visit(node.key);
if (node.fallback) context.visit(node.fallback);
mark_subtree_dynamic(context.path);
}
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