Function getYieldedTypeOfYieldExpression

test/fixtures/snapshot/typescript.js:77960–77967

(node, expressionType, sentType, isAsync)

            return { yieldTypes: yieldTypes, nextTypes: nextTypes };
        }
        function getYieldedTypeOfYieldExpression(node, expressionType, sentType, isAsync) {
            var errorNode = node.expression || node;
            // A `yield*` expression effectively yields everything that its operand yields
            var yieldedType = node.asteriskToken ? checkIteratedTypeOrElementType(isAsync ? 19 /* IterationUse.AsyncYieldStar */ : 17 /* IterationUse.YieldStar */, expressionType, sentType, errorNode) : expressionType;
            return !isAsync ? yieldedType : getAwaitedType(yieldedType, errorNode, node.asteriskToken
                ? ts.Diagnostics.Type_of_iterated_elements_of_a_yield_Asterisk_operand_must_either_be_a_valid_promise_or_must_not_contain_a_callable_then_member
                : ts.Diagnostics.Type_of_yield_operand_in_an_async_generator_must_either_be_a_valid_promise_or_must_not_contain_a_callable_then_member);
        }
        /**
         * Collect the TypeFacts learned from a typeof switch with
         * total clauses `witnesses`, and the active clause ranging