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 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 1098x 1098x 2x 2x 2x 2x 2x 2x 2x 2x 2x 1149x 1149x 1149x 1149x 336x 336x 336x 1149x 1149x 1101x 1101x 48x 48x 48x 1121x 48x 1121x 38x 38x 38x 38x 38x 38x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 10x 2x 2x 2x 2x 1100x 1100x 1100x | /** @import { AssignmentExpression, AssignmentOperator, Expression, Pattern } from 'estree' */
/** @import { SvelteNode } from '#compiler' */
/** @import { Context, ServerTransformState } from '../types.js' */
import * as b from '../../../../utils/builders.js';
import { build_assignment_value } from '../../../../utils/ast.js';
import { visit_assignment_expression } from '../../shared/assignments.js';
/**
* @param {AssignmentExpression} node
* @param {Context} context
*/
export function AssignmentExpression(node, context) {
return visit_assignment_expression(node, context, build_assignment);
}
/**
* Only returns an expression if this is not a `$store` assignment, as others can be kept as-is
* @param {AssignmentOperator} operator
* @param {Pattern} left
* @param {Expression} right
* @param {import('zimmerframe').Context<SvelteNode, ServerTransformState>} context
* @returns {Expression | null}
*/
function build_assignment(operator, left, right, context) {
let object = left;
while (object.type === 'MemberExpression') {
// @ts-expect-error
object = object.object;
}
if (object.type !== 'Identifier' || !is_store_name(object.name)) {
return null;
}
const name = object.name.slice(1);
if (!context.state.scope.get(name)) {
return null;
}
if (object === left) {
let value = /** @type {Expression} */ (
context.visit(build_assignment_value(operator, left, right))
);
return b.call('$.store_set', b.id(name), value);
}
return b.call(
'$.store_mutate',
b.assignment('??=', b.id('$$store_subs'), b.object([])),
b.literal(object.name),
b.id(name),
b.assignment(
operator,
/** @type {Pattern} */ (context.visit(left)),
/** @type {Expression} */ (context.visit(right))
)
);
}
/**
* @param {string} name
*/
function is_store_name(name) {
return name[0] === '$' && /[A-Za-z_]/.test(name[1]);
}
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