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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 1744x 1744x 1744x 1744x 1744x 1744x 1744x 1744x 2x 2x 2x 2x 2x 2x 2x 2x 1793x 1793x 1793x 1793x 1793x 214x 1793x 32x 14x 14x 14x 12x 12x 12x 12x 12x 12x 8x 8x 8x 8x 8x 8x 12x 12x 7x 12x 4x 4x 12x 31x 11x 11x 11x 9x 9x 9x 9x 9x 9x 9x 9x 9x 9x 11x 32x 1773x 1773x 1773x 1793x 567x 567x 567x 1773x 1793x 31x 31x 1742x 1742x 1793x 1737x 1737x 1793x 1793x 1793x 1793x 1793x 1156x 1156x 1156x 1156x 1156x 1156x 1156x 1156x 1156x 1156x 1156x 1156x 1156x 302x 1156x 136x 136x 1156x 1156x 1156x 581x 581x 1793x 242x 242x 242x 242x 242x 242x 242x 242x 242x 339x 339x 339x | /** @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('$.skip_ownership_validation', b.thunk(expression))
: expression;
}
/**
* @param {AssignmentOperator} operator
* @param {Pattern} left
* @param {Expression} right
* @param {Context} context
* @returns {Expression | null}
*/
function build_assignment(operator, left, right, context) {
// Handle class private/public state assignment cases
if (
context.state.analysis.runes &&
left.type === 'MemberExpression' &&
left.object.type === 'ThisExpression'
) {
if (left.property.type === 'PrivateIdentifier') {
const private_state = context.state.private_state.get(left.property.name);
if (private_state !== undefined) {
let transformed = false;
let value = /** @type {Expression} */ (
context.visit(build_assignment_value(operator, left, right))
);
if (should_proxy(value, context.state.scope)) {
transformed = true;
value =
private_state.kind === 'raw_state'
? value
: build_proxy_reassignment(value, private_state.id);
}
if (!context.state.in_constructor) {
return b.call('$.set', left, value);
} else if (transformed) {
return b.assignment(operator, /** @type {Pattern} */ (context.visit(left)), value);
}
}
} else if (left.property.type === 'Identifier' && context.state.in_constructor) {
const public_state = context.state.public_state.get(left.property.name);
if (public_state !== undefined && should_proxy(right, context.state.scope)) {
const value = /** @type {Expression} */ (context.visit(right));
return b.assignment(
operator,
/** @type {Pattern} */ (context.visit(left)),
public_state.kind === 'raw_state'
? value
: build_proxy_reassignment(value, public_state.id)
);
}
}
}
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.name);
}
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;
}
|