diff options
| -rw-r--r-- | src/cmd/compile/internal/reflectdata/reflect.go | 4 | ||||
| -rw-r--r-- | test/fixedbugs/issue45258.go | 28 |
2 files changed, 32 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/reflectdata/reflect.go b/src/cmd/compile/internal/reflectdata/reflect.go index f0a60998a1..d23ca6b839 100644 --- a/src/cmd/compile/internal/reflectdata/reflect.go +++ b/src/cmd/compile/internal/reflectdata/reflect.go @@ -1837,6 +1837,10 @@ func MarkTypeUsedInInterface(t *types.Type, from *obj.LSym) { // MarkUsedIfaceMethod marks that an interface method is used in the current // function. n is OCALLINTER node. func MarkUsedIfaceMethod(n *ir.CallExpr) { + // skip unnamed functions (func _()) + if ir.CurFunc.LSym == nil { + return + } dot := n.X.(*ir.SelectorExpr) ityp := dot.X.Type() tsym := TypeLinksym(ityp) diff --git a/test/fixedbugs/issue45258.go b/test/fixedbugs/issue45258.go new file mode 100644 index 0000000000..f4d6fccf17 --- /dev/null +++ b/test/fixedbugs/issue45258.go @@ -0,0 +1,28 @@ +// compile + +// Copyright 2021 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package main + +type Fooer interface { + Foo() Barer +} + +type Barer interface { + Bar() +} + +type impl struct{} + +func (r *impl) Foo() Barer { + return r +} + +func (r *impl) Bar() {} + +func _() { + var r Fooer = &impl{} + r.Foo().Bar() +} |