fix flow errors

babel · Nov 12, 2021 · 1c1b938 · 1c1b938
1 parent 4a26879
commit 1c1b938
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Showing 2 changed files with 11 additions and 6 deletions.
diff --git a/packages/babel-parser/src/parser/expression.js b/packages/babel-parser/src/parser/expression.js
@@ -73,6 +73,7 @@ import { cloneIdentifier } from "./node";
 
 /*::
 import type { SourceType } from "../options";
+declare var invariant;
 */
 
 const invalidHackPipeBodies = new Map([
@@ -841,13 +842,14 @@ export default class ExpressionParser extends LValParser {
 
     let node = this.startNodeAt(startPos, startLoc);
     node.callee = base;
+    const { maybeAsyncArrow, optionalChainMember } = state;
 
-    if (state.maybeAsyncArrow) {
+    if (maybeAsyncArrow) {
       this.expressionScope.enter(newAsyncArrowScope());
       refExpressionErrors = new ExpressionErrors();
     }
 
-    if (state.optionalChainMember) {
+    if (optionalChainMember) {
       node.optional = optional;
     }
 
@@ -862,9 +864,10 @@ export default class ExpressionParser extends LValParser {
         refExpressionErrors,
       );
     }
-    this.finishCallExpression(node, state.optionalChainMember);
+    this.finishCallExpression(node, optionalChainMember);
 
-    if (state.maybeAsyncArrow && this.shouldParseAsyncArrow() && !optional) {
+    if (maybeAsyncArrow && this.shouldParseAsyncArrow() && !optional) {
+      /*:: invariant(refExpressionErrors != null) */
       state.stop = true;
       this.checkDestructuringPrivate(refExpressionErrors);
       this.expressionScope.validateAsPattern();
@@ -874,7 +877,7 @@ export default class ExpressionParser extends LValParser {
         node,
       );
     } else {
-      if (state.maybeAsyncArrow) {
+      if (maybeAsyncArrow) {
         this.checkExpressionErrors(refExpressionErrors, true);
         this.expressionScope.exit();
       }
@@ -2235,7 +2238,7 @@ export default class ExpressionParser extends LValParser {
           case tt.privateName: {
             // the class private key has been handled in parseClassElementName
             const privateKeyPos = this.state.start;
-            if (refExpressionErrors !== undefined) {
+            if (refExpressionErrors != null) {
               if (refExpressionErrors.privateKey === -1) {
                 refExpressionErrors.privateKey = privateKeyPos;
               }

diff --git a/packages/babel-parser/src/parser/lval.js b/packages/babel-parser/src/parser/lval.js
@@ -16,6 +16,7 @@ import type {
   /*:: ObjectMember, */
   /*:: TsNamedTypeElementBase, */
   /*:: Identifier, */
+  /*:: PrivateName, */
   /*:: ObjectExpression, */
   /*:: ObjectPattern, */
 } from "../types";
@@ -63,6 +64,7 @@ export default class LValParser extends NodeUtils {
   +parsePropertyName: (
     prop: ObjectOrClassMember | ClassMember | TsNamedTypeElementBase,
   ) => Expression | Identifier;
+  +parsePrivateName: () => PrivateName
   */
   // Forward-declaration: defined in statement.js
   /*::