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| author | Robert Griesemer <gri@golang.org> | 2021-06-29 12:22:21 -0700 |
|---|---|---|
| committer | Robert Griesemer <gri@golang.org> | 2021-07-01 16:42:34 +0000 |
| commit | 9cb1b0f50b5852b24e1a7b66f09faa1a521ae108 (patch) | |
| tree | 72da1e367ffd794a681c2b5e08ed80cc28000fd3 /src/cmd/compile/internal/types2/type.go | |
| parent | 1cd505c353e4656ba28fd8de8708e8c8e6c21cbf (diff) | |
| download | go-9cb1b0f50b5852b24e1a7b66f09faa1a521ae108.tar.gz go-9cb1b0f50b5852b24e1a7b66f09faa1a521ae108.zip | |
[dev.typeparams] cmd/compile/internal/types2: delay interface check for type bounds
While at it, clean up code for collecting/declaring type parameters.
For #40789.
Change-Id: I0855137d5ee85c0ae2fa60d33b28c24a33132fbc
Reviewed-on: https://go-review.googlesource.com/c/go/+/331690
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Diffstat (limited to 'src/cmd/compile/internal/types2/type.go')
| -rw-r--r-- | src/cmd/compile/internal/types2/type.go | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/cmd/compile/internal/types2/type.go b/src/cmd/compile/internal/types2/type.go index 2cfcabbdb5..05e6d77d22 100644 --- a/src/cmd/compile/internal/types2/type.go +++ b/src/cmd/compile/internal/types2/type.go @@ -626,7 +626,11 @@ func (t *TypeParam) SetId(id uint64) { } func (t *TypeParam) Bound() *Interface { - iface := asInterface(t.bound) + // we may not have an interface (error reported elsewhere) + iface, _ := under(t.bound).(*Interface) + if iface == nil { + return &emptyInterface + } // use the type bound position if we have one pos := nopos if n, _ := t.bound.(*Named); n != nil { |