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https://github.com/golang/go
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255056395e
Now that we can set experiments at build time instead of make.bash time, we can actually write a test for field tracking! Update #20014 This CL contains a test for the functionality fixed in CL 312069. Change-Id: I7569a7057bbc7c88ae25ae7bf974b0c8a4e35be8 Reviewed-on: https://go-review.googlesource.com/c/go/+/312217 Trust: Keith Randall <khr@golang.org> Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com>
55 lines
886 B
Go
55 lines
886 B
Go
// Copyright 2021 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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package main
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import (
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"strings"
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"issue20014.dir/a"
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)
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func main() {
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samePackage()
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crossPackage()
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// Print fields registered with field tracking.
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for _, line := range strings.Split(fieldTrackInfo, "\n") {
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if line == "" {
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continue
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}
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println(strings.Split(line, "\t")[0])
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}
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}
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type T struct {
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X int `go:"track"`
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Y int `go:"track"`
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Z int // untracked
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}
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func (t *T) GetX() int {
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return t.X
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}
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func (t *T) GetY() int {
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return t.Y
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}
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func (t *T) GetZ() int {
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return t.Z
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}
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func samePackage() {
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var t T
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println(t.GetX())
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println(t.GetZ())
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}
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func crossPackage() {
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var t a.T
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println(t.GetX())
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println(t.GetZ())
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}
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// This global variable is set by the linker using the -k option.
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var fieldTrackInfo string
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