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ssautil: Add unit tests that set ssa.InstantiateGenerics 

Updates golang/go#52463
Updates golang/go#48525

Change-Id: I07cac2c9ad8d08a96cd14d4c729b14cf224d7f2e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/402055
Run-TryBot: Tim King <taking@google.com>
gopls-CI: kokoro <noreply+kokoro@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Tim King <taking@google.com>
Reviewed-by: Zvonimir Pavlinovic <zpavlinovic@google.com>
This commit is contained in:
Tim King 2022-04-24 21:09:33 -07:00 committed by Gopher Robot
parent ae12e8f2c7
commit 2548a8b1f5
1 changed files with 34 additions and 24 deletions
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58
go/ssa/ssautil/load_test.go
View File

@ -40,18 +40,23 @@ func TestBuildPackage(t *testing.T) {
t.Fatal(err)
}
pkg := types.NewPackage("hello", "")
mode := ssa.InstantiateGenerics
ssapkg, _, err := ssautil.BuildPackage(&types.Config{Importer: importer.Default()}, fset, pkg, []*ast.File{f}, mode)
if err != nil {
t.Fatal(err)
}
if pkg.Name() != "main" {
t.Errorf("pkg.Name() = %s, want main", pkg.Name())
}
if ssapkg.Func("main") == nil {
ssapkg.WriteTo(os.Stderr)
t.Errorf("ssapkg has no main function")
for _, mode := range []ssa.BuilderMode{
ssa.SanityCheckFunctions,
ssa.InstantiateGenerics | ssa.SanityCheckFunctions,
} {
pkg := types.NewPackage("hello", "")
ssapkg, _, err := ssautil.BuildPackage(&types.Config{Importer: importer.Default()}, fset, pkg, []*ast.File{f}, mode)
if err != nil {
t.Fatal(err)
}
if pkg.Name() != "main" {
t.Errorf("pkg.Name() = %s, want main", pkg.Name())
}
if ssapkg.Func("main") == nil {
ssapkg.WriteTo(os.Stderr)
t.Errorf("ssapkg has no main function")
}
}
}
@ -67,19 +72,23 @@ func TestPackages(t *testing.T) {
t.Fatal("there were errors")
}
prog, pkgs := ssautil.Packages(initial, ssa.InstantiateGenerics)
bytesNewBuffer := pkgs[0].Func("NewBuffer")
bytesNewBuffer.Pkg.Build()
for _, mode := range []ssa.BuilderMode{
ssa.SanityCheckFunctions,
ssa.SanityCheckFunctions | ssa.InstantiateGenerics,
} {
prog, pkgs := ssautil.Packages(initial, mode)
bytesNewBuffer := pkgs[0].Func("NewBuffer")
bytesNewBuffer.Pkg.Build()
// We'll dump the SSA of bytes.NewBuffer because it is small and stable.
out := new(bytes.Buffer)
bytesNewBuffer.WriteTo(out)
// We'll dump the SSA of bytes.NewBuffer because it is small and stable.
out := new(bytes.Buffer)
bytesNewBuffer.WriteTo(out)
// For determinism, sanitize the location.
location := prog.Fset.Position(bytesNewBuffer.Pos()).String()
got := strings.Replace(out.String(), location, "$GOROOT/src/bytes/buffer.go:1", -1)
// For determinism, sanitize the location.
location := prog.Fset.Position(bytesNewBuffer.Pos()).String()
got := strings.Replace(out.String(), location, "$GOROOT/src/bytes/buffer.go:1", -1)
want := `
want := `
# Name: bytes.NewBuffer
# Package: bytes
# Location: $GOROOT/src/bytes/buffer.go:1
@ -91,8 +100,9 @@ func NewBuffer(buf []byte) *Buffer:
return t0
`[1:]
if got != want {
t.Errorf("bytes.NewBuffer SSA = <<%s>>, want <<%s>>", got, want)
if got != want {
t.Errorf("bytes.NewBuffer SSA = <<%s>>, want <<%s>>", got, want)
}
}
}