mirror of
https://gitee.com/johng/gf
synced 2026-06-07 02:12:11 +08:00
369 lines
8.7 KiB
Go
369 lines
8.7 KiB
Go
// Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
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//
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// This Source Code Form is subject to the terms of the MIT License.
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// If a copy of the MIT was not distributed with this file,
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// You can obtain one at https://github.com/gogf/gf.
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package gutil
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import (
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"bytes"
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"fmt"
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"io"
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"reflect"
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"strings"
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"github.com/gogf/gf/v2/internal/structs"
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"github.com/gogf/gf/v2/text/gstr"
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)
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// iString is used for type assert api for String().
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type iString interface {
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String() string
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}
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// iMarshalJSON is the interface for custom Json marshaling.
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type iMarshalJSON interface {
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MarshalJSON() ([]byte, error)
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}
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// DumpOption specifies the behavior of function Export.
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type DumpOption struct {
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WithType bool // WithType specifies dumping content with type information.
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}
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// Dump prints variables `values` to stdout with more manually readable.
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func Dump(values ...interface{}) {
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for _, value := range values {
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DumpWithOption(value, DumpOption{
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WithType: false,
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})
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}
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}
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// DumpWithType acts like Dump, but with type information.
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// Also see Dump.
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func DumpWithType(values ...interface{}) {
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for _, value := range values {
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DumpWithOption(value, DumpOption{
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WithType: true,
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})
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}
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}
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// DumpWithOption returns variables `values` as a string with more manually readable.
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func DumpWithOption(value interface{}, option DumpOption) {
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buffer := bytes.NewBuffer(nil)
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DumpTo(buffer, value, DumpOption{
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WithType: option.WithType,
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})
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fmt.Println(buffer.String())
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}
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// DumpTo writes variables `values` as a string in to `writer` with more manually readable
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func DumpTo(writer io.Writer, value interface{}, option DumpOption) {
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buffer := bytes.NewBuffer(nil)
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doDump(value, "", buffer, doDumpOption{
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WithType: option.WithType,
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})
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_, _ = writer.Write(buffer.Bytes())
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}
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type doDumpOption struct {
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WithType bool
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}
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func doDump(value interface{}, indent string, buffer *bytes.Buffer, option doDumpOption) {
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if value == nil {
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buffer.WriteString(`<nil>`)
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return
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}
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var (
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reflectValue = reflect.ValueOf(value)
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reflectKind = reflectValue.Kind()
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reflectTypeName = reflect.TypeOf(value).String()
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newIndent = indent + dumpIndent
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)
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reflectTypeName = strings.ReplaceAll(reflectTypeName, `[]uint8`, `[]byte`)
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if !option.WithType {
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reflectTypeName = ""
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}
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for reflectKind == reflect.Ptr {
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reflectValue = reflectValue.Elem()
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reflectKind = reflectValue.Kind()
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}
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var (
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exportInternalInput = doDumpInternalInput{
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Value: value,
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Indent: indent,
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NewIndent: newIndent,
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Buffer: buffer,
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Option: option,
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ReflectValue: reflectValue,
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ReflectTypeName: reflectTypeName,
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}
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)
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switch reflectKind {
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case reflect.Slice, reflect.Array:
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doDumpSlice(exportInternalInput)
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case reflect.Map:
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doDumpMap(exportInternalInput)
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case reflect.Struct:
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doDumpStruct(exportInternalInput)
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case reflect.String:
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doDumpString(exportInternalInput)
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case reflect.Bool:
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if reflectValue.Bool() {
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buffer.WriteString(`true`)
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} else {
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buffer.WriteString(`false`)
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}
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case
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reflect.Int,
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reflect.Int8,
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reflect.Int16,
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reflect.Int32,
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reflect.Int64,
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reflect.Uint,
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reflect.Uint8,
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reflect.Uint16,
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reflect.Uint32,
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reflect.Uint64,
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reflect.Float32,
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reflect.Float64,
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reflect.Complex64,
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reflect.Complex128:
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doDumpNumber(exportInternalInput)
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case reflect.Chan:
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buffer.WriteString(`<chan>`)
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case reflect.Func:
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buffer.WriteString(`<func>`)
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default:
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doDumpDefault(exportInternalInput)
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}
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}
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type doDumpInternalInput struct {
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Value interface{}
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Indent string
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NewIndent string
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Buffer *bytes.Buffer
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Option doDumpOption
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ReflectValue reflect.Value
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ReflectTypeName string
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}
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func doDumpSlice(in doDumpInternalInput) {
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if b, ok := in.Value.([]byte); ok {
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if !in.Option.WithType {
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in.Buffer.WriteString(fmt.Sprintf(`"%s"`, addSlashesForString(string(b))))
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} else {
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in.Buffer.WriteString(fmt.Sprintf(
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`%s(%d) "%s"`,
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in.ReflectTypeName,
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len(string(b)),
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string(b),
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))
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}
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return
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}
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if in.ReflectValue.Len() == 0 {
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if !in.Option.WithType {
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in.Buffer.WriteString("[]")
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} else {
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in.Buffer.WriteString(fmt.Sprintf("%s(0) []", in.ReflectTypeName))
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}
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return
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}
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if !in.Option.WithType {
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in.Buffer.WriteString("[\n")
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} else {
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in.Buffer.WriteString(fmt.Sprintf("%s(%d) [\n", in.ReflectTypeName, in.ReflectValue.Len()))
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}
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for i := 0; i < in.ReflectValue.Len(); i++ {
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in.Buffer.WriteString(in.NewIndent)
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doDump(in.ReflectValue.Index(i).Interface(), in.NewIndent, in.Buffer, in.Option)
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in.Buffer.WriteString(",\n")
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}
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in.Buffer.WriteString(fmt.Sprintf("%s]", in.Indent))
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}
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func doDumpMap(in doDumpInternalInput) {
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var (
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mapKeys = in.ReflectValue.MapKeys()
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)
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if len(mapKeys) == 0 {
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if !in.Option.WithType {
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in.Buffer.WriteString("{}")
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} else {
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in.Buffer.WriteString(fmt.Sprintf("%s(0) {}", in.ReflectTypeName))
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}
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return
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}
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var (
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maxSpaceNum = 0
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tmpSpaceNum = 0
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mapKeyStr = ""
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)
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for _, key := range mapKeys {
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tmpSpaceNum = len(fmt.Sprintf(`%v`, key.Interface()))
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if tmpSpaceNum > maxSpaceNum {
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maxSpaceNum = tmpSpaceNum
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}
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}
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if !in.Option.WithType {
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in.Buffer.WriteString("{\n")
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} else {
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in.Buffer.WriteString(fmt.Sprintf("%s(%d) {\n", in.ReflectTypeName, len(mapKeys)))
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}
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for _, mapKey := range mapKeys {
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tmpSpaceNum = len(fmt.Sprintf(`%v`, mapKey.Interface()))
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if mapKey.Kind() == reflect.String {
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mapKeyStr = fmt.Sprintf(`"%v"`, mapKey.Interface())
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} else {
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mapKeyStr = fmt.Sprintf(`%v`, mapKey.Interface())
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}
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if !in.Option.WithType {
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in.Buffer.WriteString(fmt.Sprintf(
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"%s%v:%s",
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in.NewIndent,
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mapKeyStr,
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strings.Repeat(" ", maxSpaceNum-tmpSpaceNum+1),
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))
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} else {
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in.Buffer.WriteString(fmt.Sprintf(
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"%s%s(%v):%s",
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in.NewIndent,
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mapKey.Type().String(),
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mapKeyStr,
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strings.Repeat(" ", maxSpaceNum-tmpSpaceNum+1),
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))
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}
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doDump(in.ReflectValue.MapIndex(mapKey).Interface(), in.NewIndent, in.Buffer, in.Option)
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in.Buffer.WriteString(",\n")
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}
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in.Buffer.WriteString(fmt.Sprintf("%s}", in.Indent))
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}
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func doDumpStruct(in doDumpInternalInput) {
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structFields, _ := structs.Fields(structs.FieldsInput{
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Pointer: in.Value,
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RecursiveOption: structs.RecursiveOptionEmbedded,
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})
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if len(structFields) == 0 {
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var (
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structContentStr = ""
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attributeCountStr = "0"
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)
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if v, ok := in.Value.(iString); ok {
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structContentStr = v.String()
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} else if v, ok := in.Value.(iMarshalJSON); ok {
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b, _ := v.MarshalJSON()
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structContentStr = string(b)
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}
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if structContentStr == "" {
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structContentStr = "{}"
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} else {
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structContentStr = fmt.Sprintf(`"%s"`, addSlashesForString(structContentStr))
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attributeCountStr = fmt.Sprintf(`%d`, len(structContentStr)-2)
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}
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if !in.Option.WithType {
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in.Buffer.WriteString(structContentStr)
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} else {
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in.Buffer.WriteString(fmt.Sprintf(
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"%s(%s) %s",
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in.ReflectTypeName,
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attributeCountStr,
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structContentStr,
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))
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}
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return
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}
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var (
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maxSpaceNum = 0
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tmpSpaceNum = 0
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)
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for _, field := range structFields {
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tmpSpaceNum = len(field.Name())
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if tmpSpaceNum > maxSpaceNum {
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maxSpaceNum = tmpSpaceNum
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}
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}
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if !in.Option.WithType {
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in.Buffer.WriteString("{\n")
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} else {
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in.Buffer.WriteString(fmt.Sprintf("%s(%d) {\n", in.ReflectTypeName, len(structFields)))
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}
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for _, field := range structFields {
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tmpSpaceNum = len(fmt.Sprintf(`%v`, field.Name()))
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in.Buffer.WriteString(fmt.Sprintf(
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"%s%s:%s",
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in.NewIndent,
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field.Name(),
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strings.Repeat(" ", maxSpaceNum-tmpSpaceNum+1),
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))
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doDump(field.Value.Interface(), in.NewIndent, in.Buffer, in.Option)
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in.Buffer.WriteString(",\n")
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}
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in.Buffer.WriteString(fmt.Sprintf("%s}", in.Indent))
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}
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func doDumpNumber(in doDumpInternalInput) {
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if v, ok := in.Value.(iString); ok {
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s := v.String()
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if !in.Option.WithType {
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in.Buffer.WriteString(fmt.Sprintf(`"%v"`, addSlashesForString(s)))
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} else {
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in.Buffer.WriteString(fmt.Sprintf(
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`%s(%d) "%v"`,
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in.ReflectTypeName,
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len(s),
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addSlashesForString(s),
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))
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}
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} else {
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doDumpDefault(in)
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}
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}
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func doDumpString(in doDumpInternalInput) {
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s := in.ReflectValue.String()
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if !in.Option.WithType {
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in.Buffer.WriteString(fmt.Sprintf(`"%v"`, addSlashesForString(s)))
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} else {
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in.Buffer.WriteString(fmt.Sprintf(
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`%s(%d) "%v"`,
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in.ReflectTypeName,
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len(s),
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addSlashesForString(s),
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))
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}
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}
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func doDumpDefault(in doDumpInternalInput) {
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s := fmt.Sprintf("%v", in.Value)
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s = gstr.Trim(s, `<>`)
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if !in.Option.WithType {
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in.Buffer.WriteString(s)
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} else {
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in.Buffer.WriteString(fmt.Sprintf("%s(%s)", in.ReflectTypeName, s))
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}
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}
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func addSlashesForString(s string) string {
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return gstr.ReplaceByMap(s, map[string]string{
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`"`: `\"`,
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"\r": `\r`,
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"\t": `\t`,
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"\n": `\n`,
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})
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}
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