Merge 5de6aa8 into 6dda822

open-telemetry · May 12, 2021 · acdb9b4 · acdb9b4
2 parents 6dda822 + 5de6aa8
commit acdb9b4
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/context/context.ts b/src/context/context.ts
@@ -18,6 +18,12 @@ import { Context } from './types';
 
 /** Get a key to uniquely identify a context value */
 export function createContextKey(description: string) {
+  // The specification states that for the same input, multiple calls should
+  // return different keys. Due to the nature of the JS dependency management
+  // system, this creates problems where multiple versions of some package
+  // could hold different keys for the same property.
+  //
+  // Therefore, we use Symbol.for which returns the same key for the same input.
   return Symbol.for(description);
 }