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 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 88x 88x 88x 88x 88x 88x 88x 88x 88x 76x 76x 76x 76x 76x 76x 76x 76x 76x 76x 76x 88x 88x 50x 50x 50x 50x 50x 50x 50x 50x 50x 50x 50x 88x 88x 88x 88x 88x 88x 88x 88x 88x 88x 88x 88x 88x 88x 88x 88x | /** @import { BlockStatement, Expression, Pattern, Statement } from 'estree' */
/** @import { AST } from '#compiler' */
/** @import { ComponentContext } from '../types' */
import * as b from '../../../../utils/builders.js';
import { create_derived_block_argument } from '../utils.js';
/**
* @param {AST.AwaitBlock} node
* @param {ComponentContext} context
*/
export function AwaitBlock(node, context) {
context.state.template.push('<!>');
// Visit {#await <expression>} first to ensure that scopes are in the correct order
const expression = b.thunk(/** @type {Expression} */ (context.visit(node.expression)));
let then_block;
let catch_block;
if (node.then) {
const argument = node.value && create_derived_block_argument(node.value, context);
/** @type {Pattern[]} */
const args = [b.id('$$anchor')];
if (argument) args.push(argument.id);
const declarations = argument?.declarations ?? [];
const block = /** @type {BlockStatement} */ (context.visit(node.then));
then_block = b.arrow(args, b.block([...declarations, ...block.body]));
}
if (node.catch) {
const argument = node.error && create_derived_block_argument(node.error, context);
/** @type {Pattern[]} */
const args = [b.id('$$anchor')];
if (argument) args.push(argument.id);
const declarations = argument?.declarations ?? [];
const block = /** @type {BlockStatement} */ (context.visit(node.catch));
catch_block = b.arrow(args, b.block([...declarations, ...block.body]));
}
context.state.init.push(
b.stmt(
b.call(
'$.await',
context.state.node,
expression,
node.pending
? b.arrow([b.id('$$anchor')], /** @type {BlockStatement} */ (context.visit(node.pending)))
: b.literal(null),
then_block,
catch_block
)
)
);
}
|