728 lines
16 KiB
Go
728 lines
16 KiB
Go
package cast
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"reflect"
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"slices"
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"strconv"
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"strings"
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"time"
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"gopkg.in/yaml.v3"
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)
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// If 泛型三元表达式
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func If[T any](condition bool, trueVal, falseVal T) T {
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if condition {
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return trueVal
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}
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return falseVal
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}
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// In 泛型包含判断
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func In[T comparable](arr []T, val T) bool {
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return slices.Contains(arr, val)
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}
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func RealValue(v reflect.Value) reflect.Value {
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for v.Kind() == reflect.Pointer || v.Kind() == reflect.Interface {
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if v.IsNil() {
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return v
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}
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v = v.Elem()
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}
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return v
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}
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// --- Core Cast Logic ---
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func parseInt(s string) int64 {
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i, err := strconv.ParseInt(s, 10, 64)
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if err == nil {
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return i
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}
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if f, err := strconv.ParseFloat(s, 64); err == nil {
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return int64(f)
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}
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return 0
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}
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func parseUint(s string) uint64 {
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i, err := strconv.ParseUint(s, 10, 64)
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if err == nil {
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return i
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}
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if f, err := strconv.ParseFloat(s, 64); err == nil {
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return uint64(f)
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}
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return 0
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}
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func Int(value any) int { return int(Int64(value)) }
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// Helper for integer coercion to avoid repetition
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func toInt64(value any) (int64, bool) {
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switch v := value.(type) {
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case int: return int64(v), true
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case int8: return int64(v), true
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case int16: return int64(v), true
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case int32: return int64(v), true
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case int64: return v, true
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case uint: return int64(v), true
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case uint8: return int64(v), true
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case uint16: return int64(v), true
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case uint32: return int64(v), true
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case uint64: return int64(v), true
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case float32: return int64(v), true
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case float64: return int64(v), true
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case bool: return If(v, int64(1), int64(0)), true
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}
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return 0, false
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}
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func Int64(value any) int64 {
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if value == nil { return 0 }
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if i, ok := toInt64(value); ok { return i }
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switch realValue := value.(type) {
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case []byte: return parseInt(string(realValue))
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case string: return parseInt(realValue)
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}
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rv := reflect.ValueOf(value)
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if rv.Kind() == reflect.Pointer || rv.Kind() == reflect.Interface {
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if rv = RealValue(rv); rv.IsValid() && rv.CanInterface() && rv.Kind() != reflect.Pointer {
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return Int64(rv.Interface())
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}
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}
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return 0
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}
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func Uint(value any) uint { return uint(Uint64(value)) }
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func Uint64(value any) uint64 {
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if value == nil {
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return 0
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}
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switch realValue := value.(type) {
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case int:
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return uint64(realValue)
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case int8:
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return uint64(realValue)
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case int16:
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return uint64(realValue)
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case int32:
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return uint64(realValue)
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case int64:
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return uint64(realValue)
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case uint:
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return uint64(realValue)
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case uint8:
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return uint64(realValue)
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case uint16:
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return uint64(realValue)
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case uint32:
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return uint64(realValue)
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case uint64:
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return realValue
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case float32:
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return uint64(realValue)
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case float64:
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return uint64(realValue)
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case bool:
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return If(realValue, uint64(1), uint64(0))
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case []byte:
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return parseUint(string(realValue))
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case string:
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return parseUint(realValue)
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}
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rv := reflect.ValueOf(value)
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if rv.Kind() == reflect.Pointer || rv.Kind() == reflect.Interface {
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if rv = RealValue(rv); rv.IsValid() && rv.CanInterface() && rv.Kind() != reflect.Pointer {
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return Uint64(rv.Interface())
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}
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}
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return 0
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}
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func Float(value any) float32 { return float32(Float64(value)) }
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func Float64(value any) float64 {
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if value == nil {
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return 0
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}
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switch realValue := value.(type) {
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case int, int8, int16, int32, int64:
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return float64(Int64(realValue))
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case uint, uint8, uint16, uint32, uint64:
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return float64(Uint64(realValue))
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case float32:
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return float64(realValue)
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case float64:
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return realValue
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case bool:
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return If(realValue, 1.0, 0.0)
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case []byte:
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i, err := strconv.ParseFloat(string(realValue), 64)
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if err == nil {
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return i
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}
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case string:
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i, err := strconv.ParseFloat(realValue, 64)
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if err == nil {
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return i
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}
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}
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rv := reflect.ValueOf(value)
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if rv.Kind() == reflect.Pointer || rv.Kind() == reflect.Interface {
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if rv = RealValue(rv); rv.IsValid() && rv.CanInterface() && rv.Kind() != reflect.Pointer {
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return Float64(rv.Interface())
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}
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}
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return 0
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}
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func String(value any) string {
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if value == nil {
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return ""
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}
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switch realValue := value.(type) {
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case int, int8, int16, int32, int64:
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return strconv.FormatInt(Int64(realValue), 10)
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case uint, uint8, uint16, uint32, uint64:
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return strconv.FormatUint(Uint64(realValue), 10)
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case float32:
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return strconv.FormatFloat(float64(realValue), 'f', -1, 32)
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case float64:
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return strconv.FormatFloat(realValue, 'f', -1, 64)
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case bool:
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return If(realValue, "true", "false")
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case string:
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return realValue
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case []byte:
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return string(realValue)
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}
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rv := reflect.ValueOf(value)
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if rv.Kind() == reflect.Pointer || rv.Kind() == reflect.Interface {
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if rv = RealValue(rv); rv.IsValid() && rv.CanInterface() && rv.Kind() != reflect.Pointer {
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return String(rv.Interface())
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}
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}
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return fmt.Sprint(value)
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}
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func Bool(value any) bool {
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switch realValue := value.(type) {
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case int, int8, int16, int32, int64, uint, uint8, uint16, uint32, uint64, float32, float64:
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return Uint64(realValue) != 0
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case bool:
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return realValue
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case []byte:
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s := strings.ToLower(string(realValue))
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return s == "1" || s == "t" || s == "true"
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case string:
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s := strings.ToLower(realValue)
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return s == "1" || s == "t" || s == "true"
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}
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rv := reflect.ValueOf(value)
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if rv.Kind() == reflect.Pointer || rv.Kind() == reflect.Interface {
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if rv = RealValue(rv); rv.IsValid() && rv.CanInterface() && rv.Kind() != reflect.Pointer {
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return Bool(rv.Interface())
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}
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}
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return false
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}
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func Duration(value any) time.Duration {
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if value == nil {
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return 0
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}
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switch realValue := value.(type) {
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case int, int8, int16, int32, int64, uint, uint8, uint16, uint32, uint64:
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return time.Duration(Int64(realValue))
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case float32, float64:
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return time.Duration(Float64(realValue) * float64(time.Second))
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case []byte, string:
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if result, err := time.ParseDuration(String(realValue)); err == nil {
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return result
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}
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}
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rv := reflect.ValueOf(value)
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if rv.Kind() == reflect.Pointer || rv.Kind() == reflect.Interface {
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if rv = RealValue(rv); rv.IsValid() && rv.CanInterface() && rv.Kind() != reflect.Pointer {
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return Duration(rv.Interface())
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}
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}
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return 0
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}
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func ToJSONBytes(value any) ([]byte, error) {
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return fastToJSONBytes(value)
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}
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func ToJSONDesensitize(value any, keys []string) (string, error) {
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b, err := fastToJSONBytes(value, keys...)
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if err != nil {
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return "", err
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}
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return string(b), nil
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}
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func ToJSONDesensitizeBytes(value any, keys []string) ([]byte, error) {
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return fastToJSONBytes(value, keys...)
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}
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func MustToJSONBytes(value any) []byte {
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j, err := ToJSONBytes(value)
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if err != nil {
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return []byte{}
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}
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return j
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}
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func ToJSON(value any) (string, error) {
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j, err := ToJSONBytes(value)
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if err != nil {
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return "", err
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}
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return string(j), nil
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}
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func MustToJSON(value any) string {
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s, _ := ToJSON(value)
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return s
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}
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func PrettyToJSONBytes(value any) []byte {
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j := MustToJSONBytes(value)
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r := &bytes.Buffer{}
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if err := json.Indent(r, j, "", " "); err == nil {
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return r.Bytes()
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}
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return j
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}
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func PrettyToJSON(value any) string { return string(PrettyToJSONBytes(value)) }
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func toBytes(data any) []byte {
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if data == nil {
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return nil
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}
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switch v := data.(type) {
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case []byte:
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return v
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case string:
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return []byte(v)
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}
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return []byte(String(data))
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}
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func UnmarshalJSON(data any, value any) error {
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b := toBytes(data)
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if b == nil {
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return fmt.Errorf("nil data")
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}
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return fastUnmarshalJSONBytes(b, value)
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}
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func FromJSON[T any](data any) (T, error) {
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var v T
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err := UnmarshalJSON(data, &v)
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return v, err
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}
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func MustFromJSON[T any](data any) T {
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v, _ := FromJSON[T](data)
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return v
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}
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func ToYAML(value any) (string, error) {
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j, err := YAMLBytes(value)
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if err != nil {
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return "", err
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}
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return string(j), nil
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}
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func MustToYAML(value any) string {
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s, _ := ToYAML(value)
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return s
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}
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func UnmarshalYAML(data any, value any) error {
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b := toBytes(data)
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if b == nil {
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return fmt.Errorf("nil data")
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}
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return yaml.Unmarshal(b, value)
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}
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func FromYAML[T any](data any) (T, error) {
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var v T
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err := UnmarshalYAML(data, &v)
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return v, err
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}
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func MustFromYAML[T any](data any) T {
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v, _ := FromYAML[T](data)
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return v
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}
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func YAMLBytes(value any) ([]byte, error) {
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j, err := yaml.Marshal(value)
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if err == nil {
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return j, nil
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}
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return []byte(fmt.Sprint(value)), err
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}
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func MustYAMLBytes(value any) []byte {
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j, err := YAMLBytes(value)
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if err != nil {
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return []byte{}
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}
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return j
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}
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// --- Others (Keep logic but clean style) ---
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func Split(s, sep string) []string {
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ss := strings.Split(s, sep)
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out := make([]string, 0, len(ss))
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for _, s1 := range ss {
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if s2 := strings.TrimSpace(s1); s2 != "" {
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out = append(out, s2)
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}
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}
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return out
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}
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func SplitArgs(s string) []string {
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var res []string
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var builder strings.Builder
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inQuote := false
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escaped := false
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chars := []rune(s)
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for i := 0; i < len(chars); i++ {
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c := chars[i]
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if escaped {
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builder.WriteRune(c)
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escaped = false
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continue
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}
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if c == '\\' {
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escaped = true
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continue
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}
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if c == '"' {
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inQuote = !inQuote
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continue
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}
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if c == ' ' && !inQuote {
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if builder.Len() > 0 {
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res = append(res, builder.String())
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builder.Reset()
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}
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continue
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}
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builder.WriteRune(c)
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}
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if builder.Len() > 0 {
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res = append(res, builder.String())
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}
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return res
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}
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func JoinArgs(arr []string, sep string) string {
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var builder strings.Builder
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for i, s := range arr {
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if i > 0 {
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builder.WriteString(sep)
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}
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// 如果包含空格或引号，则需要包裹引号并转义内部引号
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if strings.ContainsRune(s, ' ') || strings.ContainsRune(s, '"') {
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builder.WriteByte('"')
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builder.WriteString(strings.ReplaceAll(s, "\"", "\\\""))
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builder.WriteByte('"')
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} else {
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builder.WriteString(s)
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}
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}
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return builder.String()
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}
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func UniqueAppend(to []string, from ...any) []string {
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exists := make(map[string]struct{}, len(to))
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for _, s := range to {
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exists[s] = struct{}{}
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}
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for _, a := range from {
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s := String(a)
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if _, ok := exists[s]; !ok {
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to = append(to, s)
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exists[s] = struct{}{}
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}
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}
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return to
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}
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func ArrayToBoolMap[T comparable](arr []T) map[T]bool {
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r := map[T]bool{}
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for _, s := range arr {
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r[s] = true
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}
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return r
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}
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// ToMap 将 source 填充到目标 map 中，自动转换类型。
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// 如果 source 是 struct，则提取导出字段（含嵌入字段，字段名首字母转小写）；
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// 如果 source 是 slice/array，则视为 [K1, V1, K2, V2, ...] 序列；
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// 如果 source 是 map，则进行合并（Merge）。
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func ToMap(target any, source any) {
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rv := reflect.ValueOf(target)
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for rv.Kind() == reflect.Pointer {
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if rv.IsNil() {
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if !rv.CanSet() {
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return
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}
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elemType := rv.Type().Elem()
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if elemType.Kind() == reflect.Map || elemType.Kind() == reflect.Pointer || elemType.Kind() == reflect.Struct {
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rv.Set(reflect.New(elemType))
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} else {
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return
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}
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}
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rv = rv.Elem()
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}
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if rv.Kind() != reflect.Map {
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return
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}
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if rv.IsNil() {
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if rv.CanSet() {
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rv.Set(reflect.MakeMap(rv.Type()))
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} else {
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return
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}
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}
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kt := rv.Type().Key()
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vt := rv.Type().Elem()
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sv := RealValue(reflect.ValueOf(source))
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switch sv.Kind() {
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case reflect.Struct:
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fillMapFromStruct(rv, sv, kt, vt)
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case reflect.Slice, reflect.Array:
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for i := 0; i < sv.Len(); i += 2 {
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k := sv.Index(i).Interface()
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var v any
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if i+1 < sv.Len() {
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v = sv.Index(i+1).Interface()
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}
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rv.SetMapIndex(reflectCast(k, kt), reflectCast(v, vt))
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}
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case reflect.Map:
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iter := sv.MapRange()
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for iter.Next() {
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rv.SetMapIndex(reflectCast(iter.Key().Interface(), kt), reflectCast(iter.Value().Interface(), vt))
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}
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}
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}
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func fillMapFromStruct(targetMap, sv reflect.Value, kt, vt reflect.Type) {
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st := sv.Type()
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for i := 0; i < sv.NumField(); i++ {
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field := st.Field(i)
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if !field.IsExported() {
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continue
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}
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if field.Anonymous {
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fillMapFromStruct(targetMap, sv.Field(i), kt, vt)
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continue
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}
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targetMap.SetMapIndex(reflectCast(GetLowerName(field.Name), kt), reflectCast(sv.Field(i).Interface(), vt))
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}
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}
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// ToSlice 将 source 填充到目标 slice 中，自动转换类型。
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// 如果 source 是 map，则展开为 [K1, V1, K2, V2, ...] 序列；
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// 如果 source 是 slice/array，则进行元素拷贝/追加；
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// 如果 source 是普通值，则直接作为元素追加。
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func ToSlice(target any, source any) {
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rv := reflect.ValueOf(target)
|
||
if rv.Kind() != reflect.Pointer || rv.Elem().Kind() != reflect.Slice {
|
||
return
|
||
}
|
||
sliceRv := rv.Elem()
|
||
et := sliceRv.Type().Elem()
|
||
|
||
sv := RealValue(reflect.ValueOf(source))
|
||
switch sv.Kind() {
|
||
case reflect.Map:
|
||
iter := sv.MapRange()
|
||
for iter.Next() {
|
||
sliceRv.Set(reflect.Append(sliceRv, reflectCast(iter.Key().Interface(), et)))
|
||
sliceRv.Set(reflect.Append(sliceRv, reflectCast(iter.Value().Interface(), et)))
|
||
}
|
||
case reflect.Slice, reflect.Array:
|
||
for i := 0; i < sv.Len(); i++ {
|
||
sliceRv.Set(reflect.Append(sliceRv, reflectCast(sv.Index(i).Interface(), et)))
|
||
}
|
||
case reflect.Invalid:
|
||
// Nil source, do nothing
|
||
default:
|
||
sliceRv.Set(reflect.Append(sliceRv, reflectCast(source, et)))
|
||
}
|
||
}
|
||
|
||
// MakeMap 泛型构建新 Map
|
||
func MakeMap[K comparable, V any](source any) map[K]V {
|
||
m := make(map[K]V)
|
||
ToMap(m, source)
|
||
return m
|
||
}
|
||
|
||
// MakeSlice 泛型构建新 Slice
|
||
func MakeSlice[T any](source any) []T {
|
||
var s []T
|
||
ToSlice(&s, source)
|
||
return s
|
||
}
|
||
|
||
func reflectCast(value any, t reflect.Type) reflect.Value {
|
||
switch t.Kind() {
|
||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||
return reflect.ValueOf(Int64(value)).Convert(t)
|
||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
|
||
return reflect.ValueOf(Uint64(value)).Convert(t)
|
||
case reflect.Float32, reflect.Float64:
|
||
return reflect.ValueOf(Float64(value)).Convert(t)
|
||
case reflect.String:
|
||
return reflect.ValueOf(String(value)).Convert(t)
|
||
case reflect.Bool:
|
||
return reflect.ValueOf(Bool(value)).Convert(t)
|
||
case reflect.Interface:
|
||
if value == nil {
|
||
return reflect.Zero(t)
|
||
}
|
||
return reflect.ValueOf(value)
|
||
}
|
||
|
||
if t == reflect.TypeOf(time.Duration(0)) {
|
||
return reflect.ValueOf(Duration(value))
|
||
}
|
||
|
||
return reflect.Zero(t)
|
||
}
|
||
|
||
// 补充缺失的 Key 转换工具
|
||
func GetLowerName(s string) string {
|
||
if len(s) > 0 && s[0] >= 'A' && s[0] <= 'Z' {
|
||
hasLower := false
|
||
for i := 0; i < len(s); i++ {
|
||
if s[i] >= 'a' && s[i] <= 'z' {
|
||
hasLower = true
|
||
break
|
||
}
|
||
}
|
||
if hasLower {
|
||
return strings.ToLower(s[:1]) + s[1:]
|
||
}
|
||
}
|
||
return s
|
||
}
|
||
|
||
func GetUpperName(s string) string {
|
||
if s == "" {
|
||
return ""
|
||
}
|
||
return strings.ToUpper(s[:1]) + s[1:]
|
||
}
|
||
|
||
// 指针工具
|
||
func Ptr[T any](v T) *T { return &v }
|
||
|
||
// FixUpperCase (保留以支持历史复杂的 Key 转换需求)
|
||
func FixUpperCase(data []byte, excludesKeys []string) {
|
||
// 原有逻辑保持
|
||
n := len(data)
|
||
types, keys, tpos := make([]bool, 0), make([]string, 0), -1
|
||
for i := 0; i < n-1; i++ {
|
||
if tpos+1 >= len(types) {
|
||
types = append(types, false)
|
||
keys = append(keys, "")
|
||
}
|
||
switch data[i] {
|
||
case '{':
|
||
tpos++
|
||
types[tpos] = true
|
||
keys[tpos] = ""
|
||
case '}':
|
||
tpos--
|
||
case '[':
|
||
tpos++
|
||
types[tpos] = false
|
||
keys[tpos] = ""
|
||
case ']':
|
||
tpos--
|
||
case '"':
|
||
keyPos := -1
|
||
if i > 0 && (data[i-1] == '{' || (data[i-1] == ',' && tpos >= 0 && types[tpos])) {
|
||
keyPos = i + 1
|
||
}
|
||
i++
|
||
for ; i < n-1; i++ {
|
||
if data[i] == '\\' {
|
||
i++
|
||
continue
|
||
}
|
||
if data[i] == '"' {
|
||
if keyPos >= 0 && len(excludesKeys) > 0 {
|
||
keys[tpos] = string(data[keyPos:i])
|
||
}
|
||
break
|
||
}
|
||
}
|
||
if keyPos >= 0 && (data[keyPos] >= 'A' && data[keyPos] <= 'Z') {
|
||
excluded := false
|
||
if len(excludesKeys) > 0 {
|
||
checkStr := strings.Join(keys[0:tpos+1], ".")
|
||
for _, ek := range excludesKeys {
|
||
if strings.HasSuffix(ek, ".") {
|
||
excluded = strings.HasPrefix(checkStr, ek)
|
||
} else {
|
||
excluded = checkStr == ek
|
||
}
|
||
if excluded {
|
||
break
|
||
}
|
||
}
|
||
}
|
||
if !excluded {
|
||
hasLower := false
|
||
for _, b := range data[keyPos:i] {
|
||
if b >= 'a' && b <= 'z' {
|
||
hasLower = true
|
||
break
|
||
}
|
||
}
|
||
if hasLower {
|
||
data[keyPos] |= 0x20
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|