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// Copyright 2023 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package inlheur
import "strings"
func (funcProps *FuncProps) SerializeToString() string {
if funcProps == nil {
return ""
}
var sb strings.Builder
writeUleb128(&sb, uint64(funcProps.Flags))
writeUleb128(&sb, uint64(len(funcProps.ParamFlags)))
for _, pf := range funcProps.ParamFlags {
writeUleb128(&sb, uint64(pf))
}
writeUleb128(&sb, uint64(len(funcProps.ResultFlags)))
for _, rf := range funcProps.ResultFlags {
writeUleb128(&sb, uint64(rf))
}
return sb.String()
}
func DeserializeFromString(s string) *FuncProps {
if len(s) == 0 {
return nil
}
var funcProps FuncProps
var v uint64
sl := []byte(s)
v, sl = readULEB128(sl)
funcProps.Flags = FuncPropBits(v)
v, sl = readULEB128(sl)
funcProps.ParamFlags = make([]ParamPropBits, v)
for i := range funcProps.ParamFlags {
v, sl = readULEB128(sl)
funcProps.ParamFlags[i] = ParamPropBits(v)
}
v, sl = readULEB128(sl)
funcProps.ResultFlags = make([]ResultPropBits, v)
for i := range funcProps.ResultFlags {
v, sl = readULEB128(sl)
funcProps.ResultFlags[i] = ResultPropBits(v)
}
return &funcProps
}
func readULEB128(sl []byte) (value uint64, rsl []byte) {
var shift uint
for {
b := sl[0]
sl = sl[1:]
value |= (uint64(b&0x7F) << shift)
if b&0x80 == 0 {
break
}
shift += 7
}
return value, sl
}
func writeUleb128(sb *strings.Builder, v uint64) {
if v < 128 {
sb.WriteByte(uint8(v))
return
}
more := true
for more {
c := uint8(v & 0x7f)
v >>= 7
more = v != 0
if more {
c |= 0x80
}
sb.WriteByte(c)
}
}
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