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cmd/cgo,doc/go1.12.html: document breaking EGLDisplay change

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Change-Id: I3c8ba5fdb05b6b1324648622656cc10071c70a34
Reviewed-on: https://go-review.googlesource.com/c/154997
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Elias Naur 2018-12-19 13:50:13 +01:00
parent 9ed9df6ca2
commit d902f23ec4
2 changed files with 17 additions and 0 deletions
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10
doc/go1.12.html
View file

@ -135,6 +135,16 @@ Do not send CLs removing the interior tags from such phrases.
Go 1.12 is the last release that will support binary-only packages.
</p>
<h3 id="cgo">Cgo</h3>
<p>
Go 1.12 will translate the C type <code>EGLDisplay</code> to the Go type <code>uintptr</code>.
This change is similar to how Go 1.10 and newer treats Darwin's CoreFoundation
and Java's JNI types. See the
<a href="https://golang.org/cmd/cgo/#hdr-Special_cases">cgo documentation</a>
for more information.
</p>
<h3 id="modules">Modules</h3>
<p><!-- CL 148517 -->

7
src/cmd/cgo/doc.go
View file

@ -413,6 +413,8 @@ type in Go are instead represented by a uintptr. Those include:
jobjectArray
jweak
3. The EGLDisplay type from the EGL API.
These types are uintptr on the Go side because they would otherwise
confuse the Go garbage collector; they are sometimes not really
pointers but data structures encoded in a pointer type. All operations
@ -427,6 +429,11 @@ from Go 1.9 and earlier, use the cftype or jni rewrites in the Go fix tool:
It will replace nil with 0 in the appropriate places.
The EGLDisplay case were introduced in Go 1.12. Use the egl rewrite
to auto-update code from Go 1.11 and earlier:
go tool fix -r egl <pkg>
Using cgo directly
Usage: