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go/types: add test for interface method field type

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Add a test that would have detected the regression in #74303: interface
method fields should have a recorded type.

For #74303

Change-Id: Ide5df51cd71c38809c364bb4f95950163ecefb66
Reviewed-on: https://go-review.googlesource.com/c/go/+/683595
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
Auto-Submit: Robert Findley <rfindley@google.com>
This commit is contained in:
Rob Findley 2025-06-24 00:38:37 +00:00 • committed by Gopher Robot
parent 6e618cd42a
commit 34cf5f6205
2 changed files with 10 additions and 0 deletions
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5
src/cmd/compile/internal/types2/api_test.go
View file

@ -358,6 +358,11 @@ func TestTypesInfo(t *testing.T) {
// go.dev/issue/47895
{`package p; import "unsafe"; type S struct { f int }; var s S; var _ = unsafe.Offsetof(s.f)`, `s.f`, `int`},
// go.dev/issue/74303. Note that interface field types are synthetic, so
// even though `func()` doesn't appear in the source, it appears in the
// syntax tree.
{`package p; type T interface { M(int) }`, `func(int)`, `func(int)`},
// go.dev/issue/50093
{`package u0a; func _[_ interface{int}]() {}`, `int`, `int`},
{`package u1a; func _[_ interface{~int}]() {}`, `~int`, `~int`},

5
src/go/types/api_test.go
View file

@ -364,6 +364,11 @@ func TestTypesInfo(t *testing.T) {
// go.dev/issue/47895
{`package p; import "unsafe"; type S struct { f int }; var s S; var _ = unsafe.Offsetof(s.f)`, `s.f`, `int`},
// go.dev/issue/74303. Note that interface field types are synthetic, so
// even though `func()` doesn't appear in the source, it appears in the
// syntax tree.
{`package p; type T interface { M(int) }`, `func(int)`, `func(int)`},
// go.dev/issue/50093
{`package u0a; func _[_ interface{int}]() {}`, `int`, `int`},
{`package u1a; func _[_ interface{~int}]() {}`, `~int`, `~int`},