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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 1752x 1752x 1752x 1752x 1752x 1752x 1752x 1752x 2x 2x 2x 2x 2x 2x 2x 2x 1801x 1801x 1801x 1801x 1801x 220x 1801x 35x 14x 14x 14x 12x 12x 12x 12x 12x 12x 8x 8x 8x 8x 8x 8x 12x 12x 7x 12x 4x 4x 12x 14x 35x 1790x 1790x 1790x 1801x 582x 582x 582x 1790x 1801x 43x 43x 1747x 1747x 1801x 1742x 1742x 1801x 1801x 1801x 1801x 1801x 1158x 1158x 1158x 1158x 1158x 1158x 1158x 1158x 1158x 1158x 1158x 1158x 1158x 306x 1158x 137x 137x 1158x 1158x 1158x 584x 584x 1801x 244x 244x 244x 244x 244x 244x 244x 244x 244x 340x 340x 340x | /** @import { AssignmentExpression, AssignmentOperator, Expression, Pattern } from 'estree' */
/** @import { Context } from '../types.js' */
import * as b from '../../../../utils/builders.js';
import { build_assignment_value } from '../../../../utils/ast.js';
import { is_ignored } from '../../../../state.js';
import { build_proxy_reassignment, should_proxy } from '../utils.js';
import { visit_assignment_expression } from '../../shared/assignments.js';
/**
* @param {AssignmentExpression} node
* @param {Context} context
*/
export function AssignmentExpression(node, context) {
const expression = /** @type {Expression} */ (
visit_assignment_expression(node, context, build_assignment) ?? context.next()
);
return is_ignored(node, 'ownership_invalid_mutation')
? b.call('$.skip_ownership_validation', b.thunk(expression))
: expression;
}
/**
* @param {AssignmentOperator} operator
* @param {Pattern} left
* @param {Expression} right
* @param {Context} context
* @returns {Expression | null}
*/
function build_assignment(operator, left, right, context) {
// Handle class private/public state assignment cases
if (
context.state.analysis.runes &&
left.type === 'MemberExpression' &&
left.object.type === 'ThisExpression'
) {
if (left.property.type === 'PrivateIdentifier') {
const private_state = context.state.private_state.get(left.property.name);
if (private_state !== undefined) {
let transformed = false;
let value = /** @type {Expression} */ (
context.visit(build_assignment_value(operator, left, right))
);
if (should_proxy(value, context.state.scope)) {
transformed = true;
value =
private_state.kind === 'raw_state'
? value
: build_proxy_reassignment(value, b.member(b.this, private_state.id));
}
if (!context.state.in_constructor) {
return b.call('$.set', left, value);
} else if (transformed) {
return b.assignment(operator, /** @type {Pattern} */ (context.visit(left)), value);
}
}
}
}
let object = left;
while (object.type === 'MemberExpression') {
// @ts-expect-error
object = object.object;
}
if (object.type !== 'Identifier') {
return null;
}
const binding = context.state.scope.get(object.name);
if (!binding) return null;
const transform = Object.hasOwn(context.state.transform, object.name)
? context.state.transform[object.name]
: null;
// reassignment
if (object === left && transform?.assign) {
let value = /** @type {Expression} */ (
context.visit(build_assignment_value(operator, left, right))
);
// special case — if an element binding, we know it's a primitive
const path = context.path.map((node) => node.type);
const is_primitive = path.at(-1) === 'BindDirective' && path.at(-2) === 'RegularElement';
if (
!is_primitive &&
binding.kind !== 'prop' &&
binding.kind !== 'bindable_prop' &&
context.state.analysis.runes &&
should_proxy(value, context.state.scope)
) {
value = binding.kind === 'raw_state' ? value : build_proxy_reassignment(value, object);
}
return transform.assign(object, value);
}
// mutation
if (transform?.mutate) {
return transform.mutate(
object,
b.assignment(
operator,
/** @type {Pattern} */ (context.visit(left)),
/** @type {Expression} */ (context.visit(right))
)
);
}
return null;
}
|