Function isFixablePromiseHandler

test/fixtures/snapshot/typescript.js:144820–144839

(node, checker)

    ts.isReturnStatementWithFixablePromiseHandler = isReturnStatementWithFixablePromiseHandler;
    // Should be kept up to date with transformExpression in convertToAsyncFunction.ts
    function isFixablePromiseHandler(node, checker) {
        // ensure outermost call exists and is a promise handler
        if (!isPromiseHandler(node) || !hasSupportedNumberOfArguments(node) || !node.arguments.every(function (arg) { return isFixablePromiseArgument(arg, checker); })) {
            return false;
        }
        // ensure all chained calls are valid
        var currentNode = node.expression.expression;
        while (isPromiseHandler(currentNode) || ts.isPropertyAccessExpression(currentNode)) {
            if (ts.isCallExpression(currentNode)) {
                if (!hasSupportedNumberOfArguments(currentNode) || !currentNode.arguments.every(function (arg) { return isFixablePromiseArgument(arg, checker); })) {
                    return false;
                }
                currentNode = currentNode.expression.expression;
            }
            else {
                currentNode = currentNode.expression;
            }
        }
        return true;
    }
    ts.isFixablePromiseHandler = isFixablePromiseHandler;
    function isPromiseHandler(node) {
        return ts.isCallExpression(node) && (ts.hasPropertyAccessExpressionWithName(node, "then") ||