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[SR-7087] Chaining simple calculations make a too-complex error by the compiler or REPL #49635

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swift-ci opened this issue Feb 27, 2018 · 2 comments
Open

[SR-7087] Chaining simple calculations make a too-complex error by the compiler or REPL #49635

swift-ci opened this issue Feb 27, 2018 · 2 comments
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@xedin
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself performance type checker Area → compiler: Semantic analysis

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@swift-ci
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Previous ID SR-7087
Radar None
Original Reporter mshibanami (JIRA User)
Type Bug

Attachment: Download

Environment

$swift --version
Apple Swift version 4.1 (swiftlang-902.0.38 clang-902.0.30)
Target: x86_64-apple-darwin17.4.0

Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, Performance, TypeChecker
Assignee @xedin
Priority Medium

md5: b6131e9d1dd61e2a8934a8d225450e18

Issue Description:

The following expression makes "expression was too complex to be solved in reasonable time" error by REPL or Compiler:

(Optional(1) ?? 1) * 1 * 1 * 1 * 1 * 1 * 1

It looks "Optional(1) ?? 1" part causes this problem.

I don't think this is a expected behavior.So I opened this issue.

See also the attached screen capture.
@belkadan
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Seems in line with some of the others we have. Thanks! @xedin

@xedin
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xedin commented Feb 27, 2018

Indeed operator chaining is currently a weak spot, but we are working on improving it!

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
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@xedin xedin

Labels
bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself performance type checker Area → compiler: Semantic analysis
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@xedin @belkadan @swift-ci