tree 4f1d927b8386af88b7ac53370331943e8c725af8
parent 4100dac8a16753e74830e7df4229daf45bc51bf7
author Dominik Honnef <dominik@honnef.co> 1634697960 +0200
committer Dominik Honnef <dominik@honnef.co> 1634846233 +0000

go/gcexportdata: limit reader to the export data section of the archive

When given an archive, NewReader can figure out the size of the export
data and there is no need to read the entire file, which includes
object code for the package in addition to export data.

We could make the same change in gcimporter.Import but choose not to,
as the function has no users.

Fixes golang/go#48954

Change-Id: I11e8e448c3133465f0e6ab01b3532da3732387af
Reviewed-on: https://go-review.googlesource.com/c/tools/+/357209
Trust: Dominik Honnef <dominik@honnef.co>
Run-TryBot: Robert Findley <rfindley@google.com>
gopls-CI: kokoro <noreply+kokoro@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>