Rename tada namespace to $tada to indicate it's private

src/__tests__/selection.test-d.ts

@@ -1,6 +1,6 @@
 import { expectTypeOf, test } from 'vitest';
 import { simpleSchema } from './fixtures/simpleSchema';
-import { tada } from '../namespace';
+import { $tada } from '../namespace';
 import { parseDocument } from '../parser';
 import { mapIntrospection } from '../introspection';
 import { getDocumentType } from '../selection';
@@ -116,7 +116,7 @@ test('infers fragment spreads for fragment refs', () => {
   type fragment = parseDocument</* GraphQL */ `
     fragment Fields on Todo { id text __typename }
   `>['definitions'][0] & {
-    [tada.fragmentName]: 'Fields';
+    [$tada.fragmentName]: 'Fields';
   };
 
   type query = parseDocument</* GraphQL */ `
@@ -127,7 +127,7 @@ test('infers fragment spreads for fragment refs', () => {
 
   type expected = {
     todos: Array<{
-      [tada.fragmentRefs]: {
+      [$tada.fragmentRefs]: {
         Fields: fragment;
       };
     } | null> | null;

src/index.ts

@@ -1,3 +1 @@
-export type { tada } from './namespace';
-
 export * from './api';

src/namespace.ts

@@ -1,9 +1,17 @@
-declare namespace tada {
+/** Private namespace holding our symbols for markers.
+ *
+ * @remarks
+ * Markers are used to indicate, for example, which fragments a given GraphQL document
+ * is referring to or which fragments a document exposes. This ties into “fragment masking”,
+ * a process by which the type of a fragment is hidden away until it’s unwrapped, to enforce
+ * isolation and code-reuse.
+ */
+declare namespace $tada {
   const fragmentRefs: unique symbol;
   export type fragmentRefs = typeof fragmentRefs;
 
   const fragmentName: unique symbol;
   export type fragmentName = typeof fragmentName;
 }
 
-export type { tada };
+export type { $tada };

src/selection.ts

@@ -6,7 +6,7 @@ import type {
   NameNode,
 } from '@0no-co/graphql.web';
 
-import type { tada } from './namespace';
+import type { $tada } from './namespace';
 import type { obj, objValues } from './utils';
 import type { getFragmentMap } from './fragments';
 import type { DocumentNodeLike } from './parser';
@@ -82,9 +82,9 @@ type getFragmentSelection<
   : Node extends { kind: Kind.FRAGMENT_SPREAD; name: any }
     ? Node['name']['value'] extends keyof Fragments
       ? Fragments[Node['name']['value']] extends infer Fragment extends {
-          [tada.fragmentName]: string;
+          [$tada.fragmentName]: string;
         }
-        ? { [tada.fragmentRefs]: { [Name in Fragment[tada.fragmentName]]: Fragment } }
+        ? { [$tada.fragmentRefs]: { [Name in Fragment[$tada.fragmentName]]: Fragment } }
         : getSelection<
             Fragments[Node['name']['value']]['selectionSet']['selections'],
             Type,