/
data.go
74 lines (64 loc) · 1.15 KB
/
data.go
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package intermediate
import (
"aletheiaware.com/flamego"
"encoding/binary"
"fmt"
)
type Data struct {
Statement
name string
value uint64
label *Label
}
func NewDataWithName(n string, c string) *Data {
return &Data{
Statement: Statement{
comment: c,
},
name: n,
}
}
func NewDataWithValue(v uint64, c string) *Data {
return &Data{
Statement: Statement{
comment: c,
},
value: v,
}
}
func NewDataWithLabel(l *Label, c string) *Data {
return &Data{
Statement: Statement{
comment: c,
},
label: l,
}
}
func (d *Data) Value() uint64 {
return d.value
}
func (d *Data) EmittedSize() uint32 {
return flamego.DataSize
}
func (d *Data) Emit() []byte {
buffer := make([]byte, 8)
binary.BigEndian.PutUint64(buffer, d.value)
return buffer
}
func (d *Data) Link(l Linker) error {
if d.name != "" {
label, err := l.Label(d.name)
if err != nil {
return err
}
d.label = label
d.value = uint64(d.label.AbsoluteAddress())
}
return nil
}
func (d *Data) String() string {
if d.label != nil {
return fmt.Sprintf("data %s%s", d.label.name, d.Statement.String())
}
return fmt.Sprintf("data %d%s", d.value, d.Statement.String())
}