Can't use the private field to check

sebmarkbage · sebmarkbage · commit 8e5463866e85 · 2020-10-29T20:36:18.000-04:00
diff --git a/packages/react-transport-dom-relay/src/__mocks__/JSResourceReference.js b/packages/react-transport-dom-relay/src/__mocks__/JSResourceReference.js
@@ -11,6 +11,9 @@ class JSResourceReference {
   constructor(exportedValue) {
     this._moduleId = exportedValue;
   }
+  getModuleID() {
+    return this._moduleId;
+  }
 }
 
 module.exports = JSResourceReference;
diff --git a/packages/shared/isValidElementType.js b/packages/shared/isValidElementType.js
@@ -64,7 +64,7 @@ export default function isValidElementType(type: mixed) {
       // we don't know which Flight build this will end up being used
       // with.
       type.$$typeof === REACT_MODULE_REFERENCE ||
-      type._moduleId !== undefined ||
+      type.getModuleID !== undefined ||
       type.$$typeof === REACT_BLOCK_TYPE ||
       type[(0: any)] === REACT_SERVER_BLOCK_TYPE
     ) {

Original file line number	Diff line number	Diff line change
`@@ -11,6 +11,9 @@ class JSResourceReference {`
`11`	`11`	`constructor(exportedValue) {`
`12`	`12`	`this._moduleId = exportedValue;`
`13`	`13`	`}`
	`14`	`+ getModuleID() {`
	`15`	`+ return this._moduleId;`
	`16`	`+ }`
`14`	`17`	`}`
`15`	`18`
`16`	`19`	`module.exports = JSResourceReference;`