mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-06-03 05:49:40 +00:00
108 lines
2.1 KiB
Go
108 lines
2.1 KiB
Go
package errors
|
|
|
|
import (
|
|
"fmt"
|
|
"sync"
|
|
|
|
"codeberg.org/gruf/go-format"
|
|
)
|
|
|
|
// KV is a structure for setting key-value pairs in ErrorData.
|
|
type KV struct {
|
|
Key string
|
|
Value interface{}
|
|
}
|
|
|
|
// ErrorData defines a way to set and access contextual error data.
|
|
// The default implementation of this is thread-safe.
|
|
type ErrorData interface {
|
|
// Value will attempt to fetch value for given key in ErrorData
|
|
Value(string) (interface{}, bool)
|
|
|
|
// Append adds the supplied key-values to ErrorData, similar keys DO overwrite
|
|
Append(...KV)
|
|
|
|
// Implement byte slice representation formatter.
|
|
format.Formattable
|
|
|
|
// Implement string representation formatter.
|
|
fmt.Stringer
|
|
}
|
|
|
|
// NewData returns a new ErrorData implementation.
|
|
func NewData() ErrorData {
|
|
return &errorData{
|
|
data: make([]KV, 0, 10),
|
|
}
|
|
}
|
|
|
|
// errorData is our ErrorData implementation, this is essentially
|
|
// just a thread-safe string-interface map implementation.
|
|
type errorData struct {
|
|
data []KV
|
|
mu sync.Mutex
|
|
}
|
|
|
|
func (d *errorData) set(key string, value interface{}) {
|
|
for i := range d.data {
|
|
if d.data[i].Key == key {
|
|
// Found existing, update!
|
|
d.data[i].Value = value
|
|
return
|
|
}
|
|
}
|
|
|
|
// Add new KV entry to slice
|
|
d.data = append(d.data, KV{
|
|
Key: key,
|
|
Value: value,
|
|
})
|
|
}
|
|
|
|
func (d *errorData) Value(key string) (interface{}, bool) {
|
|
d.mu.Lock()
|
|
for i := range d.data {
|
|
if d.data[i].Key == key {
|
|
v := d.data[i].Value
|
|
d.mu.Unlock()
|
|
return v, true
|
|
}
|
|
}
|
|
d.mu.Unlock()
|
|
return nil, false
|
|
}
|
|
|
|
func (d *errorData) Append(kvs ...KV) {
|
|
d.mu.Lock()
|
|
for i := range kvs {
|
|
d.set(kvs[i].Key, kvs[i].Value)
|
|
}
|
|
d.mu.Unlock()
|
|
}
|
|
|
|
func (d *errorData) AppendFormat(b []byte) []byte {
|
|
buf := format.Buffer{B: b}
|
|
d.mu.Lock()
|
|
buf.B = append(buf.B, '{')
|
|
|
|
// Append data as kv pairs
|
|
for i := range d.data {
|
|
key := d.data[i].Key
|
|
val := d.data[i].Value
|
|
format.Appendf(&buf, "{:k}={:v} ", key, val)
|
|
}
|
|
|
|
// Drop trailing space
|
|
if len(d.data) > 0 {
|
|
buf.Truncate(1)
|
|
}
|
|
|
|
buf.B = append(buf.B, '}')
|
|
d.mu.Unlock()
|
|
return buf.B
|
|
}
|
|
|
|
func (d *errorData) String() string {
|
|
return string(d.AppendFormat(nil))
|
|
}
|