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[cxx-interop][SwiftCompilerSources] Fix conversion between std::string and Swift.String

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This fixes a dangling pointer issue when creating a `Swift.String` from `std::string`.

Also fixes a warning:
```
warning: variable 's' was never mutated; consider changing to 'let' constant
    var s = SILBasicBlock_debugDescription(bridged)
    ~~~ ^
    let
```

rdar://92963081
rdar://93053488
This commit is contained in:
Egor Zhdan
2022-05-30 12:14:38 +01:00
parent 88ce7abbb5
commit be711e387f
9 changed files with 14 additions and 21 deletions
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3
SwiftCompilerSources/Sources/SIL/BasicBlock.swift
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@@ -25,8 +25,7 @@ final public class BasicBlock : ListNode, CustomStringConvertible, HasShortDescr
public var function: Function { SILBasicBlock_getFunction(bridged).function }
public var description: String {
var s = SILBasicBlock_debugDescription(bridged)
return String(cString: s.c_str())
String(_cxxString: SILBasicBlock_debugDescription(bridged))
}
public var shortDescription: String { name }