$U -> $undefined

eps1lon · eps1lon · commit 97322599b43b · 2023-03-09T10:05:09.000+01:00
diff --git a/packages/react-client/src/ReactFlightClient.js b/packages/react-client/src/ReactFlightClient.js
@@ -556,7 +556,8 @@ export function parseModelString(
             throw chunk.reason;
         }
       }
-      case 'U': {
+      case 'u': {
+        // matches "$undefined"
         // Special encoding for `undefined` which can't be serialized as JSON otherwise.
         return undefined;
       }
diff --git a/packages/react-server/src/ReactFlightServer.js b/packages/react-server/src/ReactFlightServer.js
@@ -548,7 +548,7 @@ function serializeProviderReference(name: string): string {
 }
 
 function serializeUndefined(): string {
-  return '$U';
+  return '$undefined';
 }
 
 function serializeClientReference(

Original file line number	Diff line number	Diff line change
`@@ -556,7 +556,8 @@ export function parseModelString(`
`556`	`556`	`throw chunk.reason;`
`557`	`557`	`}`
`558`	`558`	`}`
`559`		`- case 'U': {`
	`559`	`+ case 'u': {`
	`560`	`+ // matches "$undefined"`
`560`	`561`	// Special encoding for `undefined` which can't be serialized as JSON otherwise.
`561`	`562`	`return undefined;`
`562`	`563`	`}`
Original file line number	Diff line number	Diff line change
`@@ -548,7 +548,7 @@ function serializeProviderReference(name: string): string {`
`548`	`548`	`}`
`549`	`549`
`550`	`550`	`function serializeUndefined(): string {`
`551`		`- return '$U';`
	`551`	`+ return '$undefined';`
`552`	`552`	`}`
`553`	`553`
`554`	`554`	`function serializeClientReference(`