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shared/logger/node_modules/@sentry/utils/esm/buildPolyfills/_optionalChain.js

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+/**
+ * Polyfill for the optional chain operator, `?.`, given previous conversion of the expression into an array of values,
+ * descriptors, and functions.
+ *
+ * Adapted from Sucrase (https://github.com/alangpierce/sucrase)
+ * See https://github.com/alangpierce/sucrase/blob/265887868966917f3b924ce38dfad01fbab1329f/src/transformers/OptionalChainingNullishTransformer.ts#L15
+ *
+ * @param ops Array result of expression conversion
+ * @returns The value of the expression
+ */
+function _optionalChain(ops) {
+  let lastAccessLHS = undefined;
+  let value = ops[0];
+  let i = 1;
+  while (i < ops.length) {
+    const op = ops[i] ;
+    const fn = ops[i + 1] ;
+    i += 2;
+    // by checking for loose equality to `null`, we catch both `null` and `undefined`
+    if ((op === 'optionalAccess' || op === 'optionalCall') && value == null) {
+      // really we're meaning to return `undefined` as an actual value here, but it saves bytes not to write it
+      return;
+    }
+    if (op === 'access' || op === 'optionalAccess') {
+      lastAccessLHS = value;
+      value = fn(value);
+    } else if (op === 'call' || op === 'optionalCall') {
+      value = fn((...args) => (value ).call(lastAccessLHS, ...args));
+      lastAccessLHS = undefined;
+    }
+  }
+  return value;
+}
+
+// Sucrase version
+// function _optionalChain(ops) {
+//   let lastAccessLHS = undefined;
+//   let value = ops[0];
+//   let i = 1;
+//   while (i < ops.length) {
+//     const op = ops[i];
+//     const fn = ops[i + 1];
+//     i += 2;
+//     if ((op === 'optionalAccess' || op === 'optionalCall') && value == null) {
+//       return undefined;
+//     }
+//     if (op === 'access' || op === 'optionalAccess') {
+//       lastAccessLHS = value;
+//       value = fn(value);
+//     } else if (op === 'call' || op === 'optionalCall') {
+//       value = fn((...args) => value.call(lastAccessLHS, ...args));
+//       lastAccessLHS = undefined;
+//     }
+//   }
+//   return value;
+// }
+
+export { _optionalChain };
+//# sourceMappingURL=_optionalChain.js.map