diff options
Diffstat (limited to 'vendor/golang.org/x/tools/internal/aliases/aliases.go')
| -rw-r--r-- | vendor/golang.org/x/tools/internal/aliases/aliases.go | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/vendor/golang.org/x/tools/internal/aliases/aliases.go b/vendor/golang.org/x/tools/internal/aliases/aliases.go index c24c2eee4..b9425f5a2 100644 --- a/vendor/golang.org/x/tools/internal/aliases/aliases.go +++ b/vendor/golang.org/x/tools/internal/aliases/aliases.go @@ -22,11 +22,17 @@ import ( // GODEBUG=gotypesalias=... by invoking the type checker. The Enabled // function is expensive and should be called once per task (e.g. // package import), not once per call to NewAlias. -func NewAlias(enabled bool, pos token.Pos, pkg *types.Package, name string, rhs types.Type) *types.TypeName { +// +// Precondition: enabled || len(tparams)==0. +// If materialized aliases are disabled, there must not be any type parameters. +func NewAlias(enabled bool, pos token.Pos, pkg *types.Package, name string, rhs types.Type, tparams []*types.TypeParam) *types.TypeName { if enabled { tname := types.NewTypeName(pos, pkg, name, nil) - newAlias(tname, rhs) + SetTypeParams(types.NewAlias(tname, rhs), tparams) return tname } + if len(tparams) > 0 { + panic("cannot create an alias with type parameters when gotypesalias is not enabled") + } return types.NewTypeName(pos, pkg, name, rhs) } |