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apidiff: represent a Report as a list of Changes

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Modify the Report representation to be a list of Change values,
instead of two string slices.

This will enable adding more information to each change, like source
location.

Change-Id: Ia7389d7bc552479ea5e06efd7fdefe004058e66f
Reviewed-on: https://go-review.googlesource.com/c/tools/+/172777
Run-TryBot: Jay Conrod <jayconrod@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
This commit is contained in:
Jonathan Amsterdam 2019-04-18 09:46:22 -04:00
parent c6b416e8a4
commit fe54fb3517
3 changed files with 33 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
internal/apidiff/apidiff.go
View File

@ -24,10 +24,14 @@ import (
func Changes(old, new *types.Package) Report {
d := newDiffer(old, new)
d.checkPackage()
return Report{
Incompatible: d.incompatibles.collect(),
Compatible: d.compatibles.collect(),
r := Report{}
for _, m := range d.incompatibles.collect() {
r.Changes = append(r.Changes, Change{Message: m, Compatible: false})
}
for _, m := range d.compatibles.collect() {
r.Changes = append(r.Changes, Change{Message: m, Compatible: true})
}
return r
}
type differ struct {

10
internal/apidiff/apidiff_test.go
View File

@ -37,11 +37,13 @@ func TestChanges(t *testing.T) {
report := Changes(oldpkg.Types, newpkg.Types)
if !reflect.DeepEqual(report.Incompatible, wanti) {
t.Errorf("incompatibles: got %v\nwant %v\n", report.Incompatible, wanti)
got := report.messages(false)
if !reflect.DeepEqual(got, wanti) {
t.Errorf("incompatibles: got %v\nwant %v\n", got, wanti)
}
if !reflect.DeepEqual(report.Compatible, wantc) {
t.Errorf("compatibles: got %v\nwant %v\n", report.Compatible, wantc)
got = report.messages(true)
if !reflect.DeepEqual(got, wantc) {
t.Errorf("compatibles: got %v\nwant %v\n", got, wantc)
}
}

24
internal/apidiff/report.go
View File

@ -8,7 +8,23 @@ import (
// Report describes the changes detected by Changes.
type Report struct {
Incompatible, Compatible []string
Changes []Change
}
// A Change describes a single API change.
type Change struct {
Message string
Compatible bool
}
func (r Report) messages(compatible bool) []string {
var msgs []string
for _, c := range r.Changes {
if c.Compatible == compatible {
msgs = append(msgs, c.Message)
}
}
return msgs
}
func (r Report) String() string {
@ -28,13 +44,13 @@ func (r Report) Text(w io.Writer) error {
func (r Report) TextIncompatible(w io.Writer, withHeader bool) error {
if withHeader {
return r.writeMessages(w, "Incompatible changes:", r.Incompatible)
return r.writeMessages(w, "Incompatible changes:", r.messages(false))
}
return r.writeMessages(w, "", r.Incompatible)
return r.writeMessages(w, "", r.messages(false))
}
func (r Report) TextCompatible(w io.Writer) error {
return r.writeMessages(w, "Compatible changes:", r.Compatible)
return r.writeMessages(w, "Compatible changes:", r.messages(true))
}
func (r Report) writeMessages(w io.Writer, header string, msgs []string) error {