| 1 | "use strict";
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| 2 |
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| 3 | Object.defineProperty(exports, "__esModule", {
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| 4 | value: true
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| 5 | });
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| 6 | exports.default = void 0;
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| 7 | var _helperPluginUtils = require("@babel/helper-plugin-utils");
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| 8 | var _pluginSyntaxLogicalAssignmentOperators = require("@babel/plugin-syntax-logical-assignment-operators");
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| 9 | var _core = require("@babel/core");
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| 10 | var _default = (0, _helperPluginUtils.declare)(api => {
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| 11 | api.assertVersion(7);
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| 12 | return {
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| 13 | name: "proposal-logical-assignment-operators",
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| 14 | inherits: _pluginSyntaxLogicalAssignmentOperators.default,
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| 15 | visitor: {
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| 16 | AssignmentExpression(path) {
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| 17 | const {
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| 18 | node,
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| 19 | scope
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| 20 | } = path;
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| 21 | const {
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| 22 | operator,
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| 23 | left,
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| 24 | right
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| 25 | } = node;
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| 26 | const operatorTrunc = operator.slice(0, -1);
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| 27 | if (!_core.types.LOGICAL_OPERATORS.includes(operatorTrunc)) {
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| 28 | return;
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| 29 | }
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| 30 | const lhs = _core.types.cloneNode(left);
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| 31 | if (_core.types.isMemberExpression(left)) {
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| 32 | const {
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| 33 | object,
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| 34 | property,
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| 35 | computed
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| 36 | } = left;
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| 37 | const memo = scope.maybeGenerateMemoised(object);
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| 38 | if (memo) {
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| 39 | left.object = memo;
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| 40 | lhs.object = _core.types.assignmentExpression("=", _core.types.cloneNode(memo),
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| 41 | object);
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| 42 | }
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| 43 | if (computed) {
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| 44 | const memo = scope.maybeGenerateMemoised(property);
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| 45 | if (memo) {
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| 46 | left.property = memo;
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| 47 | lhs.property = _core.types.assignmentExpression("=", _core.types.cloneNode(memo),
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| 48 | property);
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| 49 | }
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| 50 | }
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| 51 | }
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| 52 | path.replaceWith(_core.types.logicalExpression(
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| 53 | operatorTrunc, lhs, _core.types.assignmentExpression("=", left, right)));
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| 54 | }
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| 55 | }
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| 56 | };
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| 57 | });
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| 58 | exports.default = _default;
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| 59 |
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| 60 |
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