diff options
Diffstat (limited to 'src/cmd/compile/internal/typecheck/universe.go')
| -rw-r--r-- | src/cmd/compile/internal/typecheck/universe.go | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/typecheck/universe.go b/src/cmd/compile/internal/typecheck/universe.go index de185ab944..54f3c89c24 100644 --- a/src/cmd/compile/internal/typecheck/universe.go +++ b/src/cmd/compile/internal/typecheck/universe.go @@ -158,6 +158,15 @@ func InitUniverse() { s.Def = n types.CalcSize(types.ErrorType) + // comparable type (interface) + s = types.BuiltinPkg.Lookup("comparable") + n = ir.NewDeclNameAt(src.NoXPos, ir.OTYPE, s) + types.ComparableType = types.NewNamed(n) + types.ComparableType.SetUnderlying(makeComparableInterface()) + n.SetType(types.ComparableType) + s.Def = n + types.CalcSize(types.ComparableType) + types.Types[types.TUNSAFEPTR] = defBasic(types.TUNSAFEPTR, ir.Pkgs.Unsafe, "Pointer") // simple aliases @@ -338,6 +347,12 @@ func makeErrorInterface() *types.Type { return types.NewInterface(types.NoPkg, []*types.Field{method}) } +func makeComparableInterface() *types.Type { + sig := types.NewSignature(types.NoPkg, fakeRecvField(), nil, nil, nil) + method := types.NewField(src.NoXPos, Lookup("=="), sig) + return types.NewInterface(types.NoPkg, []*types.Field{method}) +} + // DeclareUniverse makes the universe block visible within the current package. func DeclareUniverse() { // Operationally, this is similar to a dot import of builtinpkg, except |