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[SR-1920] More detailed error message for uninitialised variables
compiler
The Swift compiler in itself
diagnostics QoI
Bug: Diagnostics Quality of Implementation
improvement
#44529
opened Jun 28, 2016 by
karwa
updated Apr 25, 2022
[SR-2022] Better fixit for type checking in switch statements
compiler
The Swift compiler in itself
diagnostics QoI
Bug: Diagnostics Quality of Implementation
good first issue
Good for newcomers
improvement
parser
Area → compiler: The legacy C++ parser
#44631
opened Jul 7, 2016 by
karwa
updated Apr 25, 2022
[SR-2196] Large performance differences with Array vs ContiguousArray of pure-Swift structs
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
performance
standard library
Area: Standard library umbrella
#44803
opened Jul 28, 2016 by
karwa
updated Apr 25, 2022
[SR-2302] Cannot infer type of A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
type checker
Area → compiler: Semantic analysis
.none
for optional error type
bug
#44909
opened Aug 9, 2016 by
karwa
updated Apr 25, 2022
[SR-2500] deinit not called for singletons
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
#45105
opened Aug 27, 2016 by
karwa
updated Apr 25, 2022
[SR-2963] Awkward position of 'try' for rethrowing autoclosures
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
#45553
opened Oct 15, 2016 by
karwa
updated Apr 25, 2022
[SR-3111] Private top-level extensions cannot contain fileprivate members
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
#45699
opened Nov 2, 2016 by
karwa
updated Apr 25, 2022
[SR-3412] Use of closure inside withUnsafeBytes considered escaping
compiler
The Swift compiler in itself
diagnostics QoI
Bug: Diagnostics Quality of Implementation
improvement
type checker
Area → compiler: Semantic analysis
#46000
opened Dec 13, 2016 by
karwa
updated Apr 25, 2022
[SR-4177] Sequence should provide an overloaded map which doesn't throw
improvement
standard library
Area: Standard library umbrella
#46760
opened Mar 7, 2017 by
karwa
updated Apr 25, 2022
[SR-6305] Cannot initialise Dictionary from an EnumeratedSequence
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
type checker
Area → compiler: Semantic analysis
#48855
opened Nov 6, 2017 by
karwa
updated Apr 25, 2022
[SR-7045] Cannot instantiate UICollectionViewLayout's invalidationContextClass
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
#49593
opened Feb 20, 2018 by
karwa
updated Apr 25, 2022
[SR-10043] PrintAsObjC silently ignores explicit objc types nested in non-objc types
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
PrintAsClang
Area → compiler: The PrintAsClang library
#52446
opened Mar 5, 2019 by
karwa
updated Apr 25, 2022
[SR-11864] Availability warnings in dead code paths
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
#54278
opened Nov 27, 2019 by
karwa
updated Apr 25, 2022
[SR-12786] Dead string interpolations not removed at -O
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
#55231
opened May 11, 2020 by
karwa
updated Apr 25, 2022
[SR-12805] Overflow checks not eliminated in simple loop
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
standard library
Area: Standard library umbrella
#55250
opened May 13, 2020 by
karwa
updated Apr 25, 2022
[SR-13063] String(decoding:as:) is 10x slower for ASCII than for UTF8
improvement
performance
standard library
Area: Standard library umbrella
#55509
opened Jun 23, 2020 by
karwa
updated Apr 25, 2022
[SR-13874] "Collection.formIndex(_, offsetBy:, limitedBy:)" crashes for conditionally-bidirectional collections
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
standard library
Area: Standard library umbrella
#56272
opened Nov 18, 2020 by
karwa
updated Apr 25, 2022
[SR-14654] Array and ArraySlice use different implementations of replaceSubrange
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
standard library
Area: Standard library umbrella
#57006
opened May 24, 2021 by
karwa
updated Apr 25, 2022
[SR-15173] FlattenSequence.count has awful, awful performance
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
standard library
Area: Standard library umbrella
#57496
opened Sep 8, 2021 by
karwa
updated Apr 25, 2022
[SR-15209] Overflow traps not eliminated for simple calculations
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
#57531
opened Sep 17, 2021 by
karwa
updated Apr 25, 2022
[SR-15215] Excessive outlined init with takes when using optionals
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
#57537
opened Sep 19, 2021 by
karwa
updated Apr 25, 2022
[SR-15536] Compiler crash while trying to build SwiftPM
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
#57839
opened Nov 30, 2021 by
karwa
updated Apr 25, 2022
[SR-15624] withContiguousStorageIfAvailable is not inlined early
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
compiler
The Swift compiler in itself
#57920
opened Dec 20, 2021 by
karwa
updated Apr 25, 2022
null-pointer dereference in TSan
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
#61244
opened Sep 22, 2022 by
karwa
updated Sep 22, 2022
Optimiser fails to devirtualise cast to existential followed by immediate unboxing
bug
A deviation from expected or documented behavior. Also: expected but undesirable behavior.
casting
Feature: explicit casting (is, as, as? and as!)
compiler
The Swift compiler in itself
constrained existentials
Feature → existentials: constrained existentials such as 'any Collection<Int>'
existentials
Feature: values of types like `any Collection`, `Any` and `AnyObject`; type-erased values
SILOptimizer
Area → compiler: SIL optimization passes
#62264
opened Nov 27, 2022 by
karwa
updated Nov 28, 2022
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