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57668b84ff
Simplify the implementation of interface conversions in the compiler. Don't pass fields that aren't needed (the data word, usually) to the runtime. For generics, we need to put a dynamic type in an interface. The new dataWord function is exactly what we need (the type word will come from a dictionary). Change-Id: Iade5de5c174854b65ad248f35c7893c603f7be3d Reviewed-on: https://go-review.googlesource.com/c/go/+/340029 Trust: Keith Randall <khr@golang.org> Trust: Dan Scales <danscales@google.com> Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Dan Scales <danscales@google.com>
25 lines
688 B
Go
25 lines
688 B
Go
// errorcheck -0 -live -l
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// Copyright 2017 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Issue 20250: liveness differed with concurrent compilation
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// due to propagation of addrtaken to outer variables for
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// closure variables.
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package p
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type T struct {
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s [2]string
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}
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func f(a T) { // ERROR "live at entry to f: a"
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var e interface{} // ERROR "stack object e interface \{\}$"
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func() { // ERROR "live at entry to f.func1: a &e"
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e = a.s // ERROR "live at call to convT: &e" "stack object a T$"
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}()
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// Before the fix, both a and e were live at the previous line.
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_ = e
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}
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