Function isFixablePromiseArgument

test/fixtures/snapshot/typescript.js:144858–144884

(arg, checker)

    }
    // should be kept up to date with getTransformationBody in convertToAsyncFunction.ts
    function isFixablePromiseArgument(arg, checker) {
        switch (arg.kind) {
            case 256 /* SyntaxKind.FunctionDeclaration */:
            case 213 /* SyntaxKind.FunctionExpression */:
                var functionFlags = ts.getFunctionFlags(arg);
                if (functionFlags & 1 /* FunctionFlags.Generator */) {
                    return false;
                }
            // falls through
            case 214 /* SyntaxKind.ArrowFunction */:
                visitedNestedConvertibleFunctions.set(getKeyFromNode(arg), true);
            // falls through
            case 104 /* SyntaxKind.NullKeyword */:
                return true;
            case 79 /* SyntaxKind.Identifier */:
            case 206 /* SyntaxKind.PropertyAccessExpression */: {
                var symbol = checker.getSymbolAtLocation(arg);
                if (!symbol) {
                    return false;
                }
                return checker.isUndefinedSymbol(symbol) ||
                    ts.some(ts.skipAlias(symbol, checker).declarations, function (d) { return ts.isFunctionLike(d) || ts.hasInitializer(d) && !!d.initializer && ts.isFunctionLike(d.initializer); });
            }
            default:
                return false;
        }
    }
    function getKeyFromNode(exp) {
        return "".concat(exp.pos.toString(), ":").concat(exp.end.toString());
    }