Fix warning: overlapping access to 'self' #1337
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> Overlapping accesses to 'self', but modification requires exclusive access; consider copying to a local variable
spevans
reviewed
Nov 27, 2017
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| let res: Bool = withUnsafeMutablePointer(to: &at) { t in | ||
| let copy = vector | ||
| return vector.withUnsafeMutableBufferPointer { (vectorBuffer: inout UnsafeMutableBufferPointer<Int32>) in |
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Would let count = Int32(vector.count) be better to reduce the size of the copy?
spevans
reviewed
Nov 27, 2017
TestFoundation/TestNSData.swift
Outdated
| XCTAssertEqual(bytes.pointee, 0x67, "First byte should be 0x67") | ||
| XCTAssertEqual(mutatingHello[0], 0x67, "First byte accessed via other method should still be 0x67") | ||
| XCTAssertEqual(copy[0], 0x67, "First byte accessed via other method should still be 0x67") | ||
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Isn't this copy making the test redundant?
Would moving the XCTAssertEqual(mutatingHello[0] ... outside of the closure give the same effect?
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Author
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@swift-ci please test |
Contributor
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Those fixes look good. |
Contributor
Author
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@swift-ci please test and merge |
devincoughlin
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to devincoughlin/swift-corelibs-foundation
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Apr 13, 2018
Fix an exclusivity warning in TestNSData by moving assertions outside outside of a withUnsafeMutableByte() closure. This mirrors the approach taken by swiftlang#1337 to avoid the analogous warning in a similar test in this file.
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There are more of these in the codebase, but here's a fix for a few.