fix(Flow Types): Currently options are an all or nothing parameter. Split the Options type to OptionParams and Options so that properties can be independently specified in options

Author: FermiDirak

Diff for: src/index.js

@@ -3,7 +3,7 @@
 import formatTree from './formatter/formatTree';
 import parseReactElement from './parser/parseReactElement';
 import type { Element as ReactElement } from 'react';
-import type { Options } from './options';
+import type { OptionParams } from './options';
 
 const reactElementToJsxString = (
   element: ReactElement<any>,
@@ -18,7 +18,7 @@ const reactElementToJsxString = (
     sortProps = true,
     maxInlineAttributesLineLength,
     displayName,
-  }: Options = {}
+  }: OptionParams = {}
 ) => {
   if (!element) {
     throw new Error('react-element-to-jsx-string: Expected a ReactElement');

Diff for: src/options.js

@@ -2,11 +2,25 @@
 
 import * as React from 'react';
 
+export type OptionParams = {|
+  filterProps?: string[],
+  showDefaultProps?: boolean,
+  showFunctions?: boolean,
+  functionValue?: Function,
+  tabStop?: number,
+  useBooleanShorthandSyntax?: boolean,
+  useFragmentShortSyntax?: boolean,
+  sortProps?: boolean,
+
+  maxInlineAttributesLineLength?: number,
+  displayName?: (element: React.Element<*>) => string,
+|};
+
 export type Options = {|
   filterProps: string[],
   showDefaultProps: boolean,
   showFunctions: boolean,
-  functionValue: Function,
+  functionValue?: Function,
   tabStop: number,
   useBooleanShorthandSyntax: boolean,
   useFragmentShortSyntax: boolean,