cmd/go/pkg.go

186 	ImportStack   []string // shortest path from package named on command line to this one  member
196 		return fmt.Sprintf("%s\npackage %s\n", p.Err, strings.Join(p.ImportStack, "\n\timports "))
203 	if len(p.ImportStack) == 0 {
206 	return "package " + strings.Join(p.ImportStack, "\n\timports ") + ": " + p.Err
476 				ImportStack:   stk.copy(),
485 	if p.Error != nil && !p.Error.isImportCycle && stk.shorterThan(p.Error.ImportStack) {
486 		p.Error.ImportStack = stk.copy()
532 		ImportStack: stk.copy(),
582 			ImportStack: stk.copy(),
629 		ImportStack: stk.copy(),
743 			ImportStack: stk.copy(),
895 			ImportStack: stk.copy(),
914 				ImportStack: stk.copy(),
925 					ImportStack: stk.copy(),
980 			ImportStack: stk.copy(),
992 				ImportStack: stk.copy(),
1563 				ImportStack: stk.copy(),