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[SR-5563] Expression was too complex to be solved in reasonable time; consider breaking up the expression into distinct sub-expressions #48135

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swift-ci opened this issue Jul 27, 2017 · 4 comments
Closed

[SR-5563] Expression was too complex to be solved in reasonable time; consider breaking up the expression into distinct sub-expressions #48135

swift-ci opened this issue Jul 27, 2017 · 4 comments
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself regression swift 4.0 type checker Area → compiler: Semantic analysis

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@swift-ci
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Previous ID SR-5563
Radar rdar://problem/34583076
Original Reporter fritter1 (JIRA User)
Type Bug
Status Resolved
Resolution Done

Attachment: Download

Environment

Xcode 9.0 beta 4

Additional Detail from JIRA
Votes 1
Component/s Compiler
Labels Bug, 4.0Regression, TypeChecker
Assignee fritter1 (JIRA)
Priority Medium

md5: 21cec6d9a4bea15ef2c649dd3ec0e7a0

Issue Description:

Code compiling in Xcode 8.3.3 does no longer compile with Xcode 9.0 beta 4, see attachment. Error is "Expression was too complex to be solved in reasonable time; consider breaking up the expression into distinct sub-expressions"
@belkadan
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cc @rudkx

@slavapestov
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@swift-ci create

@iby
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iby commented Sep 28, 2017

I'm getting the same with SwiftyJSON code after upgrading to Swift 4. Swift 3.2 works under the same Xcode version.

let json: JSON? = JSON.parse(response.result.value)
return nil
 ?? json?["error_summary"].string
 ?? json?["error"][".tag"].string
 ?? response.result.value
 ?? response.result.error?.localizedDescription
 ?? "An error occurred while calling Dropbox API, but no details could be retrieved."

Wrapping ­{ response.result.error?.localizedDescription }() in a block hacks this.

@hborla
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hborla commented Feb 27, 2021

This compiles quickly in Swift 5.4

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself regression swift 4.0 type checker Area → compiler: Semantic analysis
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@slavapestov @belkadan @iby @hborla @swift-ci @AnthonyLatsis