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|
package value
import (
"jinx/pkg/lang/vm/mem"
)
type Value struct {
t Type
d Data
outlet mem.Ptr
}
func NewInt(x int64) Value {
t := Type{Kind: IntType}
return Value{t: t, d: IntData(x)}
}
func NewFloat(x float64) Value {
t := Type{Kind: FloatType}
return Value{t: t, d: FloatData(x)}
}
func NewString(m *mem.Mem, str string) (Value, error) {
t := Type{Kind: StringType}
ptr, err := m.Allocate(mem.CellKindString)
if err != nil {
return Value{}, err
}
m.Set(ptr, StringCell(str))
return Value{t: t, d: StringData{data: ptr}}, nil
}
func NewBool(b bool) Value {
t := Type{Kind: BoolType}
return Value{t: t, d: BoolData(b)}
}
func NewArray(m *mem.Mem, arr []Value) (Value, error) {
t := Type{Kind: ArrayType}
ptr, err := m.Allocate(mem.CellKindArray)
if err != nil {
return Value{}, err
}
m.Set(ptr, ArrayCell(arr))
return Value{t: t, d: ArrayData{data: ptr}}, nil
}
func NewNull() Value {
t := Type{Kind: NullType}
return Value{t: t}
}
func NewFunction(pc int) Value {
t := Type{Kind: FunctionType}
return Value{t: t, d: FunctionData{pc: pc}}
}
func NewObject() Value {
panic("not implemented")
}
func (v Value) Type() Type {
return v.t
}
func (v Value) Data() Data {
return v.d
}
func (v Value) WithData(d Data) Value {
return Value{t: v.t, d: d, outlet: v.outlet}
}
func (v Value) Outlet() mem.Ptr {
return v.outlet
}
func (v Value) WithOutlet(outlet mem.Ptr) Value {
return Value{t: v.t, d: v.d, outlet: outlet}
}
func (v Value) Clone(m *mem.Mem) Value {
if v.t.Kind == StringType {
str := v.d.(StringData)
m.Retain(str.data)
}
if v.t.Kind == ArrayType {
arr := v.d.(ArrayData)
m.Retain(arr.data)
}
if v.t.Kind == FunctionType {
fn := v.d.(FunctionData)
m.Retain(fn.env)
}
return v
}
func (v Value) Drop(m *mem.Mem) {
// If value has an outlet, don't drop it and instead move it to the outlet.
if !v.outlet.IsNull() {
m.Set(v.outlet, OutletCell(v))
return
}
if v.t.Kind == StringType {
str := v.d.(StringData)
m.Release(str.data)
}
if v.t.Kind == ArrayType {
arr := v.d.(ArrayData)
m.Release(arr.data)
}
if v.t.Kind == FunctionType {
f := v.d.(FunctionData)
m.Release(f.env)
}
}
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