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 16125x 12428x 23x 23x 12405x 12405x 2x 2x 2702x 2702x 24x 24x 22x 22x 2702x 60x 60x 58x 58x 58x 13x 13x 58x 60x 2667x 2x 2x 1065x 2x 2x 168x 168x 168x 168x 130x 130x 130x 130x 130x 130x 130x 130x 130x 130x 130x 130x 24x 130x 115x 115x 115x 115x 115x 115x 115x 9x 9x 115x 106x 106x 106x 115x 115x 7x 7x 115x 115x 115x 15x 15x 167x 38x 38x 38x 1x 38x 1x 1x 1x 1x 1x 1x 1x 1x 38x 37x 37x 37x 37x 37x 37x 37x 37x 37x 26x 26x 37x 8x 11x 3x 3x 3x 1x 3x 2x 2x 2x 2x 2x 2x 2x 3x 3x 37x 168x 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 }) {
// 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('$.get', node);
}
} else if (node.object.type === 'ThisExpression') {
// rewrite `this.foo` as `this.#foo.v` inside a constructor
if (node.property.type === 'Identifier' && !node.computed) {
const field = state.public_state.get(node.property.name);
if (field && state.in_constructor) {
return b.member(b.member(b.this, field.id), b.id('v'));
}
}
}
next();
},
AssignmentExpression(node, context) {
return serialize_set_binding(node, context, context.next);
},
UpdateExpression(node, context) {
const { state, next, visit } = context;
const argument = node.argument;
if (argument.type === 'Identifier') {
const binding = state.scope.get(argument.name);
const is_store = binding?.kind === 'store_sub';
const name = is_store ? argument.name.slice(1) : argument.name;
// use runtime functions for smaller output
if (
binding?.kind === 'state' ||
binding?.kind === 'frozen_state' ||
binding?.kind === 'each' ||
binding?.kind === 'legacy_reactive' ||
binding?.kind === 'prop' ||
binding?.kind === 'bindable_prop' ||
is_store
) {
/** @type {import('estree').Expression[]} */
const args = [];
let fn = '$.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 if (context.state.analysis.runes) {
return serialized_assignment;
} 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)));
}
}
}
};
|