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 15990x 12331x 22x 22x 12309x 12309x 2x 2x 2671x 2671x 24x 24x 22x 22x 2671x 60x 60x 58x 58x 58x 13x 13x 58x 60x 2636x 2x 2x 1046x 2x 2x 160x 160x 160x 160x 123x 123x 123x 123x 123x 123x 123x 123x 123x 123x 123x 123x 24x 123x 108x 108x 108x 108x 108x 108x 108x 9x 9x 108x 99x 99x 99x 108x 108x 5x 5x 108x 108x 108x 15x 15x 159x 37x 37x 37x 1x 37x 1x 1x 1x 1x 1x 1x 1x 1x 37x 36x 36x 36x 36x 36x 36x 36x 36x 36x 26x 26x 36x 8x 10x 2x 2x 2x 1x 1x 1x 1x 1x 1x 1x 1x 1x 2x 2x 36x 160x 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))); } } } }; |