Bug 58937 - PdfDocument.FindAsync method overloads all return void, rather than Task
Summary: PdfDocument.FindAsync method overloads all return void, rather than Task
Status: RESOLVED ANSWERED
Alias: None
Product: iOS
Classification: Xamarin
Component: Tools ()
Version: XI 10.99 (xcode9)
Hardware: PC Mac OS
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2017-08-21 21:42 UTC by Mike Norman
Modified: 2017-08-22 00:28 UTC (History)
2 users (show)

Tags:
Is this bug a regression?: ---
Last known good build:

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Status:
RESOLVED ANSWERED

Description Mike Norman 2017-08-21 21:42:29 UTC
Actual:
PdfDocument.FindAsync method overloads all return void, rather than Task

Expected:
They return Task? :D
Comment 1 Timothy Risi 2017-08-22 00:28:54 UTC
These methods are not actually C# async/await methods.  They're bindings for 

```
- (void)beginFindStrings:(NSArray<NSString *> *)strings 
             withOptions:(NSStringCompareOptions)options;
```

FindAsync simply triggers the asynchronous search for strings.  Notifications are issued after that when things are happening.  From the documentation (https://developer.apple.com/documentation/pdfkit/pdfdocument/1436096-beginfindstrings?language=objc):

"This method returns immediately. It causes notifications to be issued when searching begins and ends, on each search hit, and when the search proceeds to a new page. For options, refer to Searching, Comparing, and Sorting Strings."