serene-golang-implementation/bootstrap/pkg/core/bool.go

67 lines
1.4 KiB
Go

/*
Serene --- Yet an other Lisp
Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package core
import (
"serene-lang.org/bootstrap/pkg/ast"
"serene-lang.org/bootstrap/pkg/hash"
)
type Bool struct {
Node
ExecutionScope
value bool
}
func (t *Bool) GetType() ast.NodeType {
return ast.Bool
}
func (t *Bool) String() string {
if t.value {
return "true"
}
return "false"
}
func (t *Bool) ToDebugStr() string {
return t.String()
}
func (t *Bool) Hash() uint32 {
bytes := []byte(t.String())
return hash.Of(append([]byte{byte(ast.Bool)}, bytes...))
}
func (t *Bool) IsTrue() bool {
return t.value
}
func (t *Bool) IsFalse() bool {
return !t.value
}
func MakeTrue(n Node) *Bool {
return &Bool{Node: n, value: true}
}
func MakeFalse(n Node) *Bool {
return &Bool{Node: n, value: false}
}