// 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 noder

import (
	"cmd/compile/internal/types"
	"cmd/compile/internal/types2"
)

var basics = [...]**types.Type{
	types2.Invalid:        new(*types.Type),
	types2.Bool:           &types.Types[types.TBOOL],
	types2.Int:            &types.Types[types.TINT],
	types2.Int8:           &types.Types[types.TINT8],
	types2.Int16:          &types.Types[types.TINT16],
	types2.Int32:          &types.Types[types.TINT32],
	types2.Int64:          &types.Types[types.TINT64],
	types2.Uint:           &types.Types[types.TUINT],
	types2.Uint8:          &types.Types[types.TUINT8],
	types2.Uint16:         &types.Types[types.TUINT16],
	types2.Uint32:         &types.Types[types.TUINT32],
	types2.Uint64:         &types.Types[types.TUINT64],
	types2.Uintptr:        &types.Types[types.TUINTPTR],
	types2.Float32:        &types.Types[types.TFLOAT32],
	types2.Float64:        &types.Types[types.TFLOAT64],
	types2.Complex64:      &types.Types[types.TCOMPLEX64],
	types2.Complex128:     &types.Types[types.TCOMPLEX128],
	types2.String:         &types.Types[types.TSTRING],
	types2.UnsafePointer:  &types.Types[types.TUNSAFEPTR],
	types2.UntypedBool:    &types.UntypedBool,
	types2.UntypedInt:     &types.UntypedInt,
	types2.UntypedRune:    &types.UntypedRune,
	types2.UntypedFloat:   &types.UntypedFloat,
	types2.UntypedComplex: &types.UntypedComplex,
	types2.UntypedString:  &types.UntypedString,
	types2.UntypedNil:     &types.Types[types.TNIL],
}

var dirs = [...]types.ChanDir{
	types2.SendRecv: types.Cboth,
	types2.SendOnly: types.Csend,
	types2.RecvOnly: types.Crecv,
}

// deref2 does a single deref of types2 type t, if it is a pointer type.
func deref2(t types2.Type) types2.Type {
	if ptr := types2.AsPointer(t); ptr != nil {
		t = ptr.Elem()
	}
	return t
}