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[SR-1350] REPL doesn't correctly handle guard variable shadowing #4524

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swift-ci opened this issue Apr 28, 2016 · 1 comment
Open

[SR-1350] REPL doesn't correctly handle guard variable shadowing #4524

swift-ci opened this issue Apr 28, 2016 · 1 comment
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bug Something isn't working LLDB for Swift REPL

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@swift-ci
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Previous ID SR-1350
Radar None
Original Reporter jaybuff (JIRA User)
Type Bug
Additional Detail from JIRA
Votes 0
Component/s LLDB for Swift
Labels Bug, REPL
Assignee None
Priority Medium

md5: 3866fdf30f82bf574e50d9a237eeb02f

Issue Description:

let hex = "DEADBEEF"
let num = Int(hex, radix: 16)
guard let num = num else {
    fatalError("Couldn't parse \(hex) as an integer")
}

pasting the above program into the REPL, then adding print(num) prints Optional(3735928559). When I compile and run it, I get 3735928559.
@belkadan
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Per comments in SR-1353 it's not quite clear what the correct behavior is in the compiler, but the REPL has generally always allowed you to replace a binding.

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
@shahmishal shahmishal transferred this issue from apple/swift May 7, 2022
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bug Something isn't working LLDB for Swift REPL
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@belkadan @swift-ci