Inserting a key of the wrong type into an NSMutableDictionary does not warn in Objective-C

Originator:heath.borders
Number:rdar://25060179 Date Originated:09-Mar-2016 10:16 AM
Status:Open Resolved:
Product:Developer Tools Product Version:Version 7.2 (7C68)
Classification:Serious Bug Reproducible:Always
 
Summary:
Provide a descriptive summary of the issue.

Steps to Reproduce:

Compile the following:
    NSMutableDictionary<NSString *, NSString *> *stringsByString = [NSMutableDictionary new];
    stringsByString[@"1"] = @1;
    [stringsByString setObject:@1 forKey:@"1"];
    stringsByString[@2] = @"2";
    [stringsByString setObject:@"2" forKey:@2];

Expected Results:
All setObject:forKey: and setObject:forKeyedSubscript: calls should warn.

Actual Results:
Only the calls with non-matching value types warn.

Regression:

Notes:

Comments


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