go-vise

Constrained Size Output Virtual Machine
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debug.go (1350B)

      1 package state
      2 
      3 import (
      4 	"fmt"
      5 	"strings"
      6 )
      7 
      8 const (
      9 	unknown_flag_description = "?unreg?"
     10 )
     11 
     12 type flagDebugger struct {
     13 	flagStrings map[uint32]string
     14 }
     15 
     16 func newFlagDebugger() flagDebugger {
     17 	fd := flagDebugger{
     18 		flagStrings: make(map[uint32]string),
     19 	}
     20 	fd.register(FLAG_READIN, "INTERNAL_READIN")
     21 	fd.register(FLAG_INMATCH, "INTERNAL_INMATCH")
     22 	fd.register(FLAG_TERMINATE, "INTERNAL_TERMINATE")
     23 	fd.register(FLAG_DIRTY, "INTERNAL_DIRTY")
     24 	fd.register(FLAG_WAIT, "INTERNAL_WAIT")
     25 	fd.register(FLAG_LOADFAIL, "INTERNAL_LOADFAIL")
     26 	fd.register(FLAG_LANG, "INTERNAL_LANG")
     27 	return fd
     28 }
     29 
     30 func(fd *flagDebugger) register(flag uint32, name string) {
     31 	fd.flagStrings[flag] = name
     32 }
     33 
     34 func(fd *flagDebugger) Register(flag uint32, name string) error {
     35 	if (flag < 8) {
     36 		return fmt.Errorf("flag %v is not definable by user", flag)
     37 	}
     38 	fd.register(flag, name)
     39 	return nil
     40 }
     41 
     42 func(fd *flagDebugger) AsString(flags []byte, length uint32) string {
     43 	return strings.Join(fd.AsList(flags, length), ",")
     44 }
     45 
     46 func(fd *flagDebugger) AsList(flags []byte, length uint32) []string {
     47 	var r []string
     48 	var i uint32
     49 	for i = 0; i < length + 8; i++ {
     50 		if getFlag(i, flags) {
     51 			v, ok := fd.flagStrings[i]
     52 			if !ok {
     53 				v = unknown_flag_description
     54 			}
     55 			s := fmt.Sprintf("%s(%v)", v, i)
     56 			r = append(r, s)
     57 		}
     58 	}
     59 	return r
     60 }
     61 
     62 var (
     63 	FlagDebugger = newFlagDebugger()
     64 )