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cmd/compile/internal/types2: process errors in src order during testing

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Follow-up on https://golang.org/cl/305573.
As a consequence, re-enable test case that caused problems with that CL.

Change-Id: Ibffee3f016f4885a55b8e527a5680dd437322209
Reviewed-on: https://go-review.googlesource.com/c/go/+/307216
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
This commit is contained in:
Robert Griesemer 2021-04-05 16:06:18 -07:00
parent 8f1099b585
commit 836356bdaa
2 changed files with 11 additions and 6 deletions
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14
src/cmd/compile/internal/types2/check_test.go
View File

@ -32,6 +32,7 @@ import (
"os"
"path/filepath"
"regexp"
"sort"
"strings"
"testing"
@ -150,6 +151,13 @@ func checkFiles(t *testing.T, filenames []string, goVersion string, colDelta uin
return
}
// sort errlist in source order
sort.Slice(errlist, func(i, j int) bool {
pi := unpackError(errlist[i]).Pos
pj := unpackError(errlist[j]).Pos
return pi.Cmp(pj) < 0
})
// collect expected errors
errmap := make(map[string]map[uint][]syntax.Error)
for _, filename := range filenames {
@ -165,7 +173,6 @@ func checkFiles(t *testing.T, filenames []string, goVersion string, colDelta uin
}
// match against found errors
// TODO(gri) sort err list to avoid mismatched when having multiple errors
for _, err := range errlist {
got := unpackError(err)
@ -205,9 +212,8 @@ func checkFiles(t *testing.T, filenames []string, goVersion string, colDelta uin
// eliminate from list
if n := len(list) - 1; n > 0 {
// not the last entry - swap in last element and shorten list by 1
// TODO(gri) avoid changing the order of entries
list[index] = list[n]
// not the last entry - slide entries down (don't reorder)
copy(list[index:], list[index+1:])
filemap[line] = list[:n]
} else {
// last entry - remove list from filemap

3
src/cmd/compile/internal/types2/fixedbugs/issue39634.go2
View File

@ -41,8 +41,7 @@ type foo9[A any] interface { type foo9 /* ERROR interface contains type constrai
func _() { var _ = new(foo9 /* ERROR interface contains type constraints */ [int]) }
// crash 12
// TODO(gri) temporarily disabled due to an error check issue
// var u /* ERROR cycle */ , i [func /* ERROR used as value */ /* ERROR used as value */ (u, c /* ERROR undeclared */ /* ERROR undeclared */ ) {}(0, len)]c /* ERROR undeclared */ /* ERROR undeclared */
var u /* ERROR cycle */ , i [func /* ERROR used as value */ /* ERROR used as value */ (u, c /* ERROR undeclared */ /* ERROR undeclared */ ) {}(0, len /* ERROR must be called */ /* ERROR must be called */ )]c /* ERROR undeclared */ /* ERROR undeclared */
// crash 15
func y15() { var a /* ERROR declared but not used */ interface{ p() } = G15[string]{} }