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Do not get awaited type of AsyncGenerator TNext (#59644)

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This commit is contained in:
Ron Buckton
2024-08-16 11:55:46 -04:00
committed by GitHub
parent 856e472104
commit 09a8522294
4 changed files with 379 additions and 3 deletions
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src/compiler/checker.ts
+1 -3
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@@ -38376,7 +38376,6 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
const globalGeneratorType = resolver.getGlobalGeneratorType(/*reportErrors*/ false);
yieldType = resolver.resolveIterationType(yieldType, /*errorNode*/ undefined) || unknownType;
returnType = resolver.resolveIterationType(returnType, /*errorNode*/ undefined) || unknownType;
nextType = resolver.resolveIterationType(nextType, /*errorNode*/ undefined) || unknownType;
if (globalGeneratorType === emptyGenericType) {
// Fall back to the global IterableIterator type.
const globalIterableIteratorType = resolver.getGlobalIterableIteratorType(/*reportErrors*/ false);
@@ -40287,9 +40286,8 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
const iterationTypes = returnType && getIterationTypesOfGeneratorFunctionReturnType(returnType, isAsync);
const signatureYieldType = iterationTypes && iterationTypes.yieldType || anyType;
const signatureNextType = iterationTypes && iterationTypes.nextType || anyType;
const resolvedSignatureNextType = isAsync ? getAwaitedType(signatureNextType) || anyType : signatureNextType;
const yieldExpressionType = node.expression ? checkExpression(node.expression) : undefinedWideningType;
const yieldedType = getYieldedTypeOfYieldExpression(node, yieldExpressionType, resolvedSignatureNextType, isAsync);
const yieldedType = getYieldedTypeOfYieldExpression(node, yieldExpressionType, signatureNextType, isAsync);
if (returnType && yieldedType) {
checkTypeAssignableToAndOptionallyElaborate(yieldedType, signatureYieldType, node.expression || node, node.expression);
}