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 | 2x 2x 2x 2x 2x 2x 2x 15797x 12179x 17x 17x 12162x 12162x 2x 2x 2631x 79x 79x 21x 21x 19x 19x 21x 60x 60x 79x 58x 58x 58x 13x 13x 58x 79x 2599x 2x 2x 1019x 2x 2x 157x 157x 157x 157x 121x 121x 121x 121x 121x 121x 121x 121x 121x 121x 121x 121x 24x 121x 106x 106x 106x 106x 106x 106x 106x 9x 9x 106x 97x 97x 97x 106x 106x 5x 5x 106x 106x 106x 15x 15x 156x 36x 36x 36x 1x 36x 1x 1x 1x 1x 1x 1x 1x 1x 36x 35x 35x 35x 35x 35x 35x 35x 35x 35x 26x 26x 35x 9x 9x 9x 1x 8x 8x 8x 8x 8x 8x 8x 8x 9x 9x 35x 157x 2x | import is_reference from 'is-reference';
import { serialize_get_binding, serialize_set_binding } from '../utils.js';
import * as b from '../../../../utils/builders.js';
/** @type {import('../types').Visitors} */
export const global_visitors = {
Identifier(node, { path, state }) {
if (is_reference(node, /** @type {import('estree').Node} */ (path.at(-1)))) {
if (node.name === '$$props') {
return b.id('$$sanitized_props');
}
return serialize_get_binding(node, state);
}
},
MemberExpression(node, { state, next }) {
if (node.object.type === 'ThisExpression') {
// rewrite `this.#foo` as `this.#foo.v` inside a constructor
if (node.property.type === 'PrivateIdentifier') {
const field = state.private_state.get(node.property.name);
if (field) {
return state.in_constructor ? b.member(node, b.id('v')) : b.call('$.get', node);
}
}
// rewrite `this.foo` as `this.#foo.v` inside a constructor
if (node.property.type === 'Identifier' && !node.computed) {
const field = state.public_state.get(node.property.name);
if (field && state.in_constructor) {
return b.member(b.member(b.this, field.id), b.id('v'));
}
}
}
next();
},
AssignmentExpression(node, context) {
return serialize_set_binding(node, context, context.next);
},
UpdateExpression(node, context) {
const { state, next, visit } = context;
const argument = node.argument;
if (argument.type === 'Identifier') {
const binding = state.scope.get(argument.name);
const is_store = binding?.kind === 'store_sub';
const name = is_store ? argument.name.slice(1) : argument.name;
// use runtime functions for smaller output
if (
binding?.kind === 'state' ||
binding?.kind === 'frozen_state' ||
binding?.kind === 'each' ||
binding?.kind === 'legacy_reactive' ||
binding?.kind === 'prop' ||
binding?.kind === 'bindable_prop' ||
is_store
) {
/** @type {import('estree').Expression[]} */
const args = [];
let fn = '$.update';
if (node.prefix) fn += '_pre';
if (is_store) {
fn += '_store';
args.push(serialize_get_binding(b.id(name), state), b.call('$' + name));
} else {
if (binding.kind === 'prop' || binding.kind === 'bindable_prop') fn += '_prop';
args.push(b.id(name));
}
if (node.operator === '--') {
args.push(b.literal(-1));
}
return b.call(fn, ...args);
}
return next();
} else if (
argument.type === 'MemberExpression' &&
argument.object.type === 'ThisExpression' &&
argument.property.type === 'PrivateIdentifier' &&
context.state.private_state.has(argument.property.name)
) {
let fn = '$.update';
if (node.prefix) fn += '_pre';
/** @type {import('estree').Expression[]} */
const args = [argument];
if (node.operator === '--') {
args.push(b.literal(-1));
}
return b.call(fn, ...args);
} else {
// turn it into an IIFEE assignment expression: i++ -> (() => { const $$value = i; i+=1; return $$value; })
const assignment = b.assignment(
node.operator === '++' ? '+=' : '-=',
/** @type {import('estree').Pattern} */ (argument),
b.literal(1)
);
const serialized_assignment = serialize_set_binding(assignment, context, () => assignment);
const value = /** @type {import('estree').Expression} */ (visit(argument));
if (serialized_assignment === assignment) {
// No change to output -> nothing to transform -> we can keep the original update expression
return next();
} else {
/** @type {import('estree').Statement[]} */
let statements;
if (node.prefix) {
statements = [b.stmt(serialized_assignment), b.return(value)];
} else {
const tmp_id = state.scope.generate('$$value');
statements = [
b.const(tmp_id, value),
b.stmt(serialized_assignment),
b.return(b.id(tmp_id))
];
}
return b.call(b.thunk(b.block(statements)));
}
}
}
};
|