forked from andyleap/gencode
/
type_array.go
140 lines (131 loc) · 3.59 KB
/
type_array.go
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package golang
import (
"fmt"
"text/template"
"github.com/andyleap/gencode/schema"
)
var (
ArrayTemps *template.Template
)
func init() {
ArrayTemps = template.New("ArrayTemps")
template.Must(ArrayTemps.New("marshal").Parse(`
{
for k := range {{.Target}} {
{{.SubTypeCode}}
{{if gt .SubOffset 0 }}
i += {{.SubOffset}}
{{end}}
}
}`))
template.Must(ArrayTemps.New("unmarshal").Parse(`
{
for k := range {{.Target}} {
{{.SubTypeCode}}
{{if gt .SubOffset 0 }}
i += {{.SubOffset}}
{{end}}
}
}`))
template.Must(ArrayTemps.New("bytemarshal").Parse(`
{
copy(buf[{{if $.W.IAdjusted}}i + {{end}}{{$.W.Offset}}:], {{.Target}}[:])
i += {{.Count}}
}`))
template.Must(ArrayTemps.New("byteunmarshal").Parse(`
{
copy({{.Target}}[:], buf[{{if $.W.IAdjusted}}i + {{end}}{{$.W.Offset}}:])
i += {{.Count}}
}`))
template.Must(ArrayTemps.New("size").Parse(`
{
for k := range {{.Target}} {
{{.SubTypeCode}}
{{if gt .SubOffset 0 }}
s += {{.SubOffset}}
{{end}}
}
}`))
template.Must(ArrayTemps.New("bytesize").Parse(`
{
s += {{.Count}}
}`))
template.Must(ArrayTemps.New("field").Parse(`[{{.Count}}]`))
}
type ArrayTemp struct {
*schema.ArrayType
W *Walker
SubOffset int
Target string
SubTypeCode string
SubField string
}
func (w *Walker) WalkArrayDef(at *schema.ArrayType) (parts *StringBuilder, err error) {
parts = &StringBuilder{}
parts.Append(fmt.Sprintf("[%d]", at.Count))
sub, err := w.WalkTypeDef(at.SubType)
if err != nil {
return nil, err
}
parts.Join(sub)
return
}
func (w *Walker) WalkArraySize(at *schema.ArrayType, target string) (parts *StringBuilder, err error) {
parts = &StringBuilder{}
w.IAdjusted = true
offset := w.Offset
subtypecode, err := w.WalkTypeSize(at.SubType, target+"[k]")
if err != nil {
return nil, err
}
SubOffset := w.Offset - offset
w.Offset = offset
if _, ok := at.SubType.(*schema.ByteType); ok {
err = parts.AddTemplate(ArrayTemps, "bytesize", ArrayTemp{at, w, SubOffset, target, subtypecode.String(), ""})
} else {
err = parts.AddTemplate(ArrayTemps, "size", ArrayTemp{at, w, SubOffset, target, subtypecode.String(), ""})
}
return
}
func (w *Walker) WalkArrayMarshal(at *schema.ArrayType, target string) (parts *StringBuilder, err error) {
parts = &StringBuilder{}
w.IAdjusted = true
offset := w.Offset
subtypecode, err := w.WalkTypeMarshal(at.SubType, target+"[k]")
if err != nil {
return nil, err
}
SubOffset := w.Offset - offset
w.Offset = offset
subfield, err := w.WalkTypeDef(at.SubType)
if err != nil {
return nil, err
}
if _, ok := at.SubType.(*schema.ByteType); ok {
err = parts.AddTemplate(ArrayTemps, "bytemarshal", ArrayTemp{at, w, SubOffset, target, subtypecode.String(), subfield.String()})
} else {
err = parts.AddTemplate(ArrayTemps, "marshal", ArrayTemp{at, w, SubOffset, target, subtypecode.String(), subfield.String()})
}
return
}
func (w *Walker) WalkArrayUnmarshal(at *schema.ArrayType, target string) (parts *StringBuilder, err error) {
parts = &StringBuilder{}
w.IAdjusted = true
offset := w.Offset
subtypecode, err := w.WalkTypeUnmarshal(at.SubType, target+"[k]")
if err != nil {
return nil, err
}
SubOffset := w.Offset - offset
w.Offset = offset
subfield, err := w.WalkTypeDef(at.SubType)
if err != nil {
return nil, err
}
if _, ok := at.SubType.(*schema.ByteType); ok {
err = parts.AddTemplate(ArrayTemps, "byteunmarshal", ArrayTemp{at, w, SubOffset, target, subtypecode.String(), subfield.String()})
} else {
err = parts.AddTemplate(ArrayTemps, "unmarshal", ArrayTemp{at, w, SubOffset, target, subtypecode.String(), subfield.String()})
}
return
}