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refactor: Update node fstring methods to append to a strings.Builder instead of returning a string.

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This commit is contained in:
srpvpn 2025-12-28 23:57:42 +03:00
parent 27b3a6087e
commit efea256506
1 changed files with 37 additions and 16 deletions
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53
trie/node.go
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@ -30,7 +30,7 @@ var indices = []string{"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "a", "b
type node interface {
cache() (hashNode, bool)
encode(w rlp.EncoderBuffer)
fstring(string) string
fstring(string, *strings.Builder)
}
type (
@ -94,31 +94,52 @@ func (n hashNode) cache() (hashNode, bool) { return nil, true }
func (n valueNode) cache() (hashNode, bool) { return nil, true }
// Pretty printing.
func (n *fullNode) String() string { return n.fstring("") }
func (n *shortNode) String() string { return n.fstring("") }
func (n hashNode) String() string { return n.fstring("") }
func (n valueNode) String() string { return n.fstring("") }
func (n *fullNode) String() string {
var b strings.Builder
n.fstring("", &b)
return b.String()
}
func (n *shortNode) String() string {
var b strings.Builder
n.fstring("", &b)
return b.String()
}
func (n hashNode) String() string {
var b strings.Builder
n.fstring("", &b)
return b.String()
}
func (n valueNode) String() string {
var b strings.Builder
n.fstring("", &b)
return b.String()
}
func (n *fullNode) fstring(ind string) string {
resp := fmt.Sprintf("[\n%s ", ind)
func (n *fullNode) fstring(ind string, b *strings.Builder) {
fmt.Fprintf(b, "[\n%s ", ind)
for i, node := range &n.Children {
if node == nil {
resp += fmt.Sprintf("%s: <nil> ", indices[i])
fmt.Fprintf(b, "%s: <nil> ", indices[i])
} else {
resp += fmt.Sprintf("%s: %v", indices[i], node.fstring(ind+" "))
fmt.Fprintf(b, "%s: ", indices[i])
node.fstring(ind+" ", b)
}
}
return resp + fmt.Sprintf("\n%s] ", ind)
fmt.Fprintf(b, "\n%s] ", ind)
}
func (n *shortNode) fstring(ind string) string {
return fmt.Sprintf("{%x: %v} ", n.Key, n.Val.fstring(ind+" "))
func (n *shortNode) fstring(ind string, b *strings.Builder) {
fmt.Fprintf(b, "{%x: ", n.Key)
n.Val.fstring(ind+" ", b)
b.WriteString("} ")
}
func (n hashNode) fstring(ind string) string {
return fmt.Sprintf("<%x> ", []byte(n))
func (n hashNode) fstring(ind string, b *strings.Builder) {
fmt.Fprintf(b, "<%x> ", []byte(n))
}
func (n valueNode) fstring(ind string) string {
return fmt.Sprintf("%x ", []byte(n))
func (n valueNode) fstring(ind string, b *strings.Builder) {
fmt.Fprintf(b, "%x ", []byte(n))
}
// mustDecodeNode is a wrapper of decodeNode and panic if any error is encountered.