[dev.typeparams] cmd/compile/internal/types2: fix a bug in package qualification logic

This is a partial port of https://golang.org/cl/330629, containing
only the actual bug fix and adjustements to another test file.

The respective test case has not been ported yet as it requires
some bigger adjustments.

For #46905

Change-Id: Ibd20658b8a31855da20cf56e24bcce9560656ca0
Reviewed-on: https://go-review.googlesource.com/c/go/+/336350
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
This commit is contained in:
Robert Griesemer 2021-07-21 16:36:49 -07:00
parent 996b0dbc65
commit b93f646125
3 changed files with 3 additions and 4 deletions

View file

@ -111,7 +111,7 @@ func (check *Checker) qualifier(pkg *Package) string {
if check.pkgPathMap == nil {
check.pkgPathMap = make(map[string]map[string]bool)
check.seenPkgMap = make(map[*Package]bool)
check.markImports(pkg)
check.markImports(check.pkg)
}
// If the same package name was used by multiple packages, display the full path.
if len(check.pkgPathMap[pkg.name]) > 1 {

View file

@ -332,7 +332,7 @@ func issue28281g() (... /* ERROR can only use ... with final parameter in list *
func issue26234a(f *syn.File) {
// The error message below should refer to the actual package name (syntax)
// not the local package name (syn).
f.foo /* ERROR f.foo undefined \(type \*syntax.File has no field or method foo\) */
f.foo /* ERROR f\.foo undefined \(type \*syntax\.File has no field or method foo\) */
}
type T struct {
@ -361,7 +361,7 @@ func issue35895() {
// Because both t1 and t2 have the same global package name (template),
// qualify packages with full path name in this case.
var _ t1.Template = t2 /* ERROR cannot use .* \(value of type "html/template".Template\) as "text/template".Template */ .Template{}
var _ t1.Template = t2 /* ERROR cannot use .* \(value of type .html/template.\.Template\) as .text/template.\.Template */ .Template{}
}
func issue42989(s uint) {

View file

@ -2140,7 +2140,6 @@ var types2Failures = setOf(
"fixedbugs/issue11610.go", // types2 not run after syntax errors
"fixedbugs/issue11614.go", // types2 reports an extra error
"fixedbugs/issue14520.go", // missing import path error by types2
"fixedbugs/issue16133.go", // types2 doesn't use package path for qualified identifiers when package name is ambiguous
"fixedbugs/issue16428.go", // types2 reports two instead of one error
"fixedbugs/issue17038.go", // types2 doesn't report a follow-on error (pref: types2)
"fixedbugs/issue17645.go", // multiple errors on same line