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[SIL Diagnostics] Improve diagnostics for capture of inout values in escaping autoclosures. #31139

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merged 1 commit into from
Apr 20, 2020
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[SIL Diagnostics] Improve diagnostics for capture of inout values in escaping autoclosures. #31139

merged 1 commit into from
Apr 20, 2020

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ravikandhadai
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Currently, when an inout or mutating self is passed to an escaping, autoclosured parameter, the error message looks as follows:

foo(x) 
  error: escaping closure captures 'inout' parameter 'x'
  note: captured here

The error message refers to a closure even though there is no closure is in the source code. This PR improves the error message and makes the note more actionable for autoclosures:

foo(x) 
  error: escaping autoclosure captures 'inout' parameter 'x'
  note: pass a copy of 'x'

rdar://problem/60551844

@ravikandhadai
[SIL Diagnostics] Improve diagnostics for capture of inout values
a2d38f6 
within escaping autoclosures.

<rdar://problem/60551844>
@ravikandhadai
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@swift-ci Please test

@ravikandhadai ravikandhadai self-assigned this Apr 19, 2020
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Build failed
Swift Test Linux Platform
Git Sha - a2d38f6

@ravikandhadai
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@swift-ci Please smoke test Linux Platform

atrick
atrick approved these changes Apr 20, 2020
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LGTM

@ravikandhadai ravikandhadai merged commit 1c2bc06 into swiftlang:master Apr 20, 2020
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@atrick atrick atrick approved these changes

@slavapestov slavapestov Awaiting requested review from slavapestov

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@ravikandhadai @swift-ci @atrick