first

node_modules/@babel/plugin-transform-nullish-coalescing-operator/lib/index.js

@@ -0,0 +1,50 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+var _helperPluginUtils = require("@babel/helper-plugin-utils");
+var _pluginSyntaxNullishCoalescingOperator = require("@babel/plugin-syntax-nullish-coalescing-operator");
+var _core = require("@babel/core");
+var _default = (0, _helperPluginUtils.declare)((api, {
+  loose = false
+}) => {
+  var _api$assumption;
+  api.assertVersion(7);
+  const noDocumentAll = (_api$assumption = api.assumption("noDocumentAll")) != null ? _api$assumption : loose;
+  return {
+    name: "transform-nullish-coalescing-operator",
+    inherits: _pluginSyntaxNullishCoalescingOperator.default,
+    visitor: {
+      LogicalExpression(path) {
+        const {
+          node,
+          scope
+        } = path;
+        if (node.operator !== "??") {
+          return;
+        }
+        let ref;
+        let assignment;
+        if (scope.isStatic(node.left)) {
+          ref = node.left;
+          assignment = _core.types.cloneNode(node.left);
+        } else if (scope.path.isPattern()) {
+          path.replaceWith(_core.template.statement.ast`(() => ${path.node})()`);
+          return;
+        } else {
+          ref = scope.generateUidIdentifierBasedOnNode(node.left);
+          scope.push({
+            id: _core.types.cloneNode(ref)
+          });
+          assignment = _core.types.assignmentExpression("=", ref, node.left);
+        }
+        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));
+      }
+    }
+  };
+});
+exports.default = _default;
+
+//# sourceMappingURL=index.js.map

node_modules/@babel/plugin-transform-nullish-coalescing-operator/lib/index.js.map

@@ -0,0 +1 @@
+{"version":3,"names":["_helperPluginUtils","require","_pluginSyntaxNullishCoalescingOperator","_core","_default","declare","api","loose","_api$assumption","assertVersion","noDocumentAll","assumption","name","inherits","syntaxNullishCoalescingOperator","default","visitor","LogicalExpression","path","node","scope","operator","ref","assignment","isStatic","left","t","cloneNode","isPattern","replaceWith","template","statement","ast","generateUidIdentifierBasedOnNode","push","id","assignmentExpression","conditionalExpression","binaryExpression","nullLiteral","logicalExpression","buildUndefinedNode","right","exports"],"sources":["../src/index.ts"],"sourcesContent":["import { declare } from \"@babel/helper-plugin-utils\";\nimport syntaxNullishCoalescingOperator from \"@babel/plugin-syntax-nullish-coalescing-operator\";\nimport { types as t, template } from \"@babel/core\";\n\nexport interface Options {\n  loose?: boolean;\n}\n\nexport default declare((api, { loose = false }: Options) => {\n  api.assertVersion(7);\n  const noDocumentAll = api.assumption(\"noDocumentAll\") ?? loose;\n\n  return {\n    name: \"transform-nullish-coalescing-operator\",\n    inherits: syntaxNullishCoalescingOperator.default,\n\n    visitor: {\n      LogicalExpression(path) {\n        const { node, scope } = path;\n        if (node.operator !== \"??\") {\n          return;\n        }\n\n        let ref;\n        let assignment;\n        // skip creating extra reference when `left` is static\n        if (scope.isStatic(node.left)) {\n          ref = node.left;\n          assignment = t.cloneNode(node.left);\n        } else if (scope.path.isPattern()) {\n          // Replace `function (a, x = a.b ?? c) {}` to `function (a, x = (() => a.b ?? c)() ){}`\n          // so the temporary variable can be injected in correct scope\n          path.replaceWith(template.statement.ast`(() => ${path.node})()`);\n          // The injected nullish expression will be queued and eventually transformed when visited\n          return;\n        } else {\n          ref = scope.generateUidIdentifierBasedOnNode(node.left);\n          scope.push({ id: t.cloneNode(ref) });\n          assignment = t.assignmentExpression(\"=\", ref, node.left);\n        }\n\n        path.replaceWith(\n          t.conditionalExpression(\n            // We cannot use `!= null` in spec mode because\n            // `document.all == null` and `document.all` is not \"nullish\".\n            noDocumentAll\n              ? t.binaryExpression(\"!=\", assignment, t.nullLiteral())\n              : t.logicalExpression(\n                  \"&&\",\n                  t.binaryExpression(\"!==\", assignment, t.nullLiteral()),\n                  t.binaryExpression(\n                    \"!==\",\n                    t.cloneNode(ref),\n                    scope.buildUndefinedNode(),\n                  ),\n                ),\n            t.cloneNode(ref),\n            node.right,\n          ),\n        );\n      },\n    },\n  };\n});\n"],"mappings":";;;;;;AAAA,IAAAA,kBAAA,GAAAC,OAAA;AACA,IAAAC,sCAAA,GAAAD,OAAA;AACA,IAAAE,KAAA,GAAAF,OAAA;AAAmD,IAAAG,QAAA,GAMpC,IAAAC,0BAAO,EAAC,CAACC,GAAG,EAAE;EAAEC,KAAK,GAAG;AAAe,CAAC,KAAK;EAAA,IAAAC,eAAA;EAC1DF,GAAG,CAACG,aAAa,CAAC,CAAC,CAAC;EACpB,MAAMC,aAAa,IAAAF,eAAA,GAAGF,GAAG,CAACK,UAAU,CAAC,eAAe,CAAC,YAAAH,eAAA,GAAID,KAAK;EAE9D,OAAO;IACLK,IAAI,EAAE,uCAAuC;IAC7CC,QAAQ,EAAEC,sCAA+B,CAACC,OAAO;IAEjDC,OAAO,EAAE;MACPC,iBAAiBA,CAACC,IAAI,EAAE;QACtB,MAAM;UAAEC,IAAI;UAAEC;QAAM,CAAC,GAAGF,IAAI;QAC5B,IAAIC,IAAI,CAACE,QAAQ,KAAK,IAAI,EAAE;UAC1B;QACF;QAEA,IAAIC,GAAG;QACP,IAAIC,UAAU;QAEd,IAAIH,KAAK,CAACI,QAAQ,CAACL,IAAI,CAACM,IAAI,CAAC,EAAE;UAC7BH,GAAG,GAAGH,IAAI,CAACM,IAAI;UACfF,UAAU,GAAGG,WAAC,CAACC,SAAS,CAACR,IAAI,CAACM,IAAI,CAAC;QACrC,CAAC,MAAM,IAAIL,KAAK,CAACF,IAAI,CAACU,SAAS,CAAC,CAAC,EAAE;UAGjCV,IAAI,CAACW,WAAW,CAACC,cAAQ,CAACC,SAAS,CAACC,GAAI,UAASd,IAAI,CAACC,IAAK,KAAI,CAAC;UAEhE;QACF,CAAC,MAAM;UACLG,GAAG,GAAGF,KAAK,CAACa,gCAAgC,CAACd,IAAI,CAACM,IAAI,CAAC;UACvDL,KAAK,CAACc,IAAI,CAAC;YAAEC,EAAE,EAAET,WAAC,CAACC,SAAS,CAACL,GAAG;UAAE,CAAC,CAAC;UACpCC,UAAU,GAAGG,WAAC,CAACU,oBAAoB,CAAC,GAAG,EAAEd,GAAG,EAAEH,IAAI,CAACM,IAAI,CAAC;QAC1D;QAEAP,IAAI,CAACW,WAAW,CACdH,WAAC,CAACW,qBAAqB,CAGrB3B,aAAa,GACTgB,WAAC,CAACY,gBAAgB,CAAC,IAAI,EAAEf,UAAU,EAAEG,WAAC,CAACa,WAAW,CAAC,CAAC,CAAC,GACrDb,WAAC,CAACc,iBAAiB,CACjB,IAAI,EACJd,WAAC,CAACY,gBAAgB,CAAC,KAAK,EAAEf,UAAU,EAAEG,WAAC,CAACa,WAAW,CAAC,CAAC,CAAC,EACtDb,WAAC,CAACY,gBAAgB,CAChB,KAAK,EACLZ,WAAC,CAACC,SAAS,CAACL,GAAG,CAAC,EAChBF,KAAK,CAACqB,kBAAkB,CAAC,CAC3B,CACF,CAAC,EACLf,WAAC,CAACC,SAAS,CAACL,GAAG,CAAC,EAChBH,IAAI,CAACuB,KACP,CACF,CAAC;MACH;IACF;EACF,CAAC;AACH,CAAC,CAAC;AAAAC,OAAA,CAAA5B,OAAA,GAAAX,QAAA"}