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package main
import (
"fmt"
"log"
)
// List fields
func (f *ListField) Define(c *Context) {
c.Putln("%s []%s // size: %s",
f.SrcName(), f.Type.SrcName(), f.Size())
}
func (f *ListField) Read(c *Context) {
c.Putln("")
switch t := f.Type.(type) {
case *Resource:
length := f.LengthExpr.Reduce("v.", "")
c.Putln("v.%s = make([]Id, %s)", f.SrcName(), length)
c.Putln("for i := 0; i < %s; i++ {", length)
ReadSimpleSingleField(c, fmt.Sprintf("v.%s[i]", f.SrcName()), t)
c.Putln("}")
c.Putln("b = pad(b)")
case *Base:
length := f.LengthExpr.Reduce("v.", "")
c.Putln("v.%s = make([]%s, %s)", f.SrcName(), t.SrcName(), length)
if t.SrcName() == "byte" {
c.Putln("copy(v.%s[:%s], buf[b:])", f.SrcName(), length)
c.Putln("b += pad(%s)", length)
} else {
c.Putln("for i := 0; i < %s; i++ {", length)
ReadSimpleSingleField(c, fmt.Sprintf("v.%s[i]", f.SrcName()), t)
c.Putln("}")
c.Putln("b = pad(b)")
}
case *Struct:
c.Putln("v.%s = make([]%s, %s)",
f.SrcName(), t.SrcName(), f.LengthExpr.Reduce("v.", ""))
c.Putln("b += Read%sList(buf[b:], v.%s)", t.SrcName(), f.SrcName())
default:
log.Fatalf("Cannot read list field '%s' with %T type.",
f.XmlName(), f.Type)
}
}
func (f *ListField) Write(c *Context) {
c.Putln("")
switch t := f.Type.(type) {
case *Resource:
length := f.LengthExpr.Reduce("v.", "")
c.Putln("for i := 0; i < %s; i++", length)
WriteSimpleSingleField(c, fmt.Sprintf("v.%s[i]", f.SrcName()), t)
c.Putln("}")
c.Putln("b = pad(b)")
case *Base:
length := f.LengthExpr.Reduce("v.", "")
if t.SrcName() == "byte" {
c.Putln("copy(buf[b:], v.%s[:%s])", f.SrcName(), length)
c.Putln("b += pad(%s)", length)
} else {
c.Putln("for i := 0; i < %s; i++ {", length)
WriteSimpleSingleField(c, fmt.Sprintf("v.%s[i]", f.SrcName()), t)
c.Putln("}")
c.Putln("b = pad(b)")
}
case *Struct:
c.Putln("b += %sListBytes(buf[b:], v.%s)", t.SrcName(), f.SrcName())
default:
log.Fatalf("Cannot read list field '%s' with %T type.",
f.XmlName(), f.Type)
}
}
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