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|
package value
import (
"fmt"
"jinx/pkg/lang/vm/mem"
"strconv"
"strings"
)
type Data interface {
String(mem.Mem) (string, error)
}
type IntData int64
func (i IntData) Get() int64 {
return int64(i)
}
func (i IntData) String(_ mem.Mem) (string, error) {
return strconv.FormatInt(int64(i), 10), nil
}
type FloatData float64
func (f FloatData) Get() float64 {
return float64(f)
}
func (f FloatData) String(_ mem.Mem) (string, error) {
return strconv.FormatFloat(float64(f), 'f', -1, 64), nil
}
type StringData struct {
data mem.Ptr
}
func (s StringData) String(m mem.Mem) (string, error) {
if data, err := m.Get(s.data); err == nil {
return "\"" + data.(StringCell).Get() + "\"", nil
} else {
return "", err
}
}
type BoolData bool
func (b BoolData) Get() bool {
return bool(b)
}
func (b BoolData) String(_ mem.Mem) (string, error) {
return strconv.FormatBool(bool(b)), nil
}
type ArrayData struct {
data mem.Ptr
}
func (a ArrayData) String(m mem.Mem) (string, error) {
val, err := m.Get(a.data)
if err != nil {
return "", err
}
arr := val.(ArrayCell).Get()
builder := strings.Builder{}
builder.WriteString("[")
for i, v := range arr {
if i > 0 {
builder.WriteString(", ")
}
if s, err := v.Data().String(m); err == nil {
builder.WriteString(s)
} else {
return "", err
}
}
builder.WriteString("]")
return builder.String(), nil
}
func (a ArrayData) Len(m mem.Mem) (int, error) {
data, err := m.Get(a.data)
if err != nil {
return 0, err
}
arr := data.(ArrayCell).Get()
return len(arr), nil
}
func (a ArrayData) At(m mem.Mem, i int) (Value, error) {
data, err := m.Get(a.data)
if err != nil {
return Value{}, err
}
arr := data.(ArrayCell).Get()
return arr[i], nil
}
func (a ArrayData) Push(m mem.Mem, v Value) error {
data, err := m.Get(a.data)
if err != nil {
return err
}
arr := data.(ArrayCell).Get()
arr = append(arr, v)
m.Set(a.data, ArrayCell(arr))
return nil
}
type NullData struct{}
type FunctionData struct {
pc int
env mem.Ptr
native NativeFunc
}
type NativeFunc func([]Value) (Value, error)
func (f FunctionData) Pc() int {
return f.pc
}
func (f FunctionData) Env() mem.Ptr {
return f.env
}
func (f FunctionData) Native() NativeFunc {
return f.native
}
func (f FunctionData) WithEnv(env mem.Ptr) FunctionData {
return FunctionData{pc: f.pc, env: env, native: f.native}
}
func (f FunctionData) String(_ mem.Mem) (string, error) {
if f.native != nil {
return "<fn native>", nil
} else {
return fmt.Sprintf("<fn %d>", f.pc), nil
}
}
}
type ObjectData struct{} // TODO
|
