func (u *Undo) Exec(target interface{}) (executed, consume bool) {
finder, ok := target.(EditorFinder)
if !ok {
return false, false
}
editor := finder.CurrentEditor()
if editor == nil {
u.err = "undo: no file open"
return true, true
}
history := editor.History()
edit, ok := history.Undo()
if !ok {
u.warn = "undo: nothing to undo"
return true, true
}
text, _ := editor.Controller().ReplaceAt(editor.Runes(), edit.At, edit.At+len(edit.New), edit.Old)
editor.Controller().SetTextRunes(text)
absDelta := edit.Delta
if absDelta < 0 {
absDelta = -absDelta
}
editor.Controller().SetSelection(gxui.CreateTextSelection(edit.At, edit.At+absDelta, true))
editor.ScrollToRune(edit.At)
return true, true
}
func (gi *GotoDef) Exec(on interface{}) (executed, consume bool) {
opener, ok := on.(LineOpener)
if !ok {
return false, false
}
editor := opener.CurrentEditor()
if editor == nil {
return true, true
}
proj := opener.Project()
lastCaret := editor.Controller().LastCaret()
cmd := exec.Command("godef", "-f", editor.Filepath(), "-o", strconv.Itoa(lastCaret), "-i")
cmd.Stdin = bytes.NewBufferString(editor.Text())
errBuffer := &bytes.Buffer{}
cmd.Stderr = errBuffer
cmd.Env = []string{"PATH=" + os.Getenv("PATH")}
if proj.Gopath != "" {
cmd.Env[0] += string(os.PathListSeparator) + filepath.Join(proj.Gopath, "bin")
cmd.Env = append(cmd.Env, "GOPATH="+proj.Gopath)
}
output, err := cmd.Output()
if err != nil {
gi.err = fmt.Sprintf("godef error: %s", string(output))
return true, true
}
path, line, column, err := parseGodef(output)
if err != nil {
gi.err = err.Error()
return true, true
}
opener.OpenLine(path, line, column)
return true, true
}