| 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 _core = require("@babel/core");
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| 9 | var _default = exports.default = (0, _helperPluginUtils.declare)((api, {
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| 10 | loose = false
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| 11 | }) => {
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| 12 | var _api$assumption, _api$assumption2;
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| 13 | api.assertVersion("^7.0.0-0 || >8.0.0-alpha <8.0.0-beta");
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| 14 | const noDocumentAll = (_api$assumption = api.assumption("noDocumentAll")) != null ? _api$assumption : loose;
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| 15 | const pureGetters = (_api$assumption2 = api.assumption("pureGetters")) != null ? _api$assumption2 : false;
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| 16 | return {
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| 17 | name: "transform-nullish-coalescing-operator",
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| 18 | manipulateOptions: (_, parser) => parser.plugins.push("nullishCoalescingOperator"),
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| 19 | visitor: {
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| 20 | LogicalExpression(path) {
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| 21 | const {
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| 22 | node,
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| 23 | scope
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| 24 | } = path;
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| 25 | if (node.operator !== "??") {
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| 26 | return;
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| 27 | }
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| 28 | let ref;
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| 29 | let assignment;
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| 30 | if (pureGetters && scope.path.isPattern() && _core.types.isMemberExpression(node.left) && !node.left.computed && _core.types.isIdentifier(node.left.object) && _core.types.isIdentifier(node.left.property) || _core.types.isIdentifier(node.left) && (pureGetters || scope.hasBinding(node.left.name))) {
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| 31 | ref = node.left;
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| 32 | assignment = _core.types.cloneNode(node.left);
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| 33 | } else if (scope.path.isPattern()) {
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| 34 | path.replaceWith(_core.template.statement.ast`(() => ${path.node})()`);
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| 35 | return;
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| 36 | } else {
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| 37 | ref = scope.generateUidIdentifierBasedOnNode(node.left);
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| 38 | scope.push({
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| 39 | id: _core.types.cloneNode(ref)
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| 40 | });
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| 41 | assignment = _core.types.assignmentExpression("=", ref, node.left);
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| 42 | }
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| 43 | path.replaceWith(_core.types.conditionalExpression(noDocumentAll ? _core.types.binaryExpression("!=", assignment, _core.types.nullLiteral()) : _core.types.logicalExpression("&&", _core.types.binaryExpression("!==", assignment, _core.types.nullLiteral()), _core.types.binaryExpression("!==", _core.types.cloneNode(ref), scope.buildUndefinedNode())), _core.types.cloneNode(ref), node.right));
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| 44 | }
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| 45 | }
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| 46 | };
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| 47 | });
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| 48 |
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| 49 | //# sourceMappingURL=index.js.map
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