mirror of
https://github.com/json-iterator/go.git
synced 2024-11-27 08:30:57 +02:00
849 lines
16 KiB
Go
849 lines
16 KiB
Go
package jsoniter
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import (
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"fmt"
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"reflect"
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"unsafe"
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)
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type objectLazyAny struct {
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baseAny
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buf []byte
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iter *Iterator
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err error
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cache map[string]Any
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remaining []byte
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}
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func (any *objectLazyAny) ValueType() ValueType {
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return Object
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}
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func (any *objectLazyAny) Parse() *Iterator {
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iter := any.iter
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if iter == nil {
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iter = NewIterator()
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any.iter = iter
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}
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iter.ResetBytes(any.remaining)
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return iter
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}
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func (any *objectLazyAny) fillCacheUntil(target string) Any {
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if any.remaining == nil {
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return any.cache[target]
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}
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if any.cache == nil {
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any.cache = map[string]Any{}
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}
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val := any.cache[target]
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if val != nil {
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return val
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}
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iter := any.Parse()
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if len(any.remaining) == len(any.buf) {
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iter.head++
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c := iter.nextToken()
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if c != '}' {
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iter.unreadByte()
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k := string(iter.readObjectFieldAsBytes())
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v := iter.readAny(iter)
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any.cache[k] = v
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if target == k {
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any.remaining = iter.buf[iter.head:]
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any.err = iter.Error
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return v
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}
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} else {
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any.remaining = nil
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any.err = iter.Error
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return nil
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}
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}
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for iter.nextToken() == ',' {
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k := string(iter.readObjectFieldAsBytes())
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v := iter.readAny(iter)
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any.cache[k] = v
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if target == k {
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any.remaining = iter.buf[iter.head:]
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any.err = iter.Error
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return v
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}
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}
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any.remaining = nil
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any.err = iter.Error
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return nil
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}
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func (any *objectLazyAny) fillCache() {
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if any.remaining == nil {
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return
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}
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if any.cache == nil {
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any.cache = map[string]Any{}
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}
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iter := any.Parse()
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if len(any.remaining) == len(any.buf) {
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iter.head++
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c := iter.nextToken()
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if c != '}' {
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iter.unreadByte()
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k := string(iter.readObjectFieldAsBytes())
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v := iter.readAny(iter)
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any.cache[k] = v
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} else {
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any.remaining = nil
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any.err = iter.Error
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return
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}
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}
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for iter.nextToken() == ',' {
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k := string(iter.readObjectFieldAsBytes())
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v := iter.readAny(iter)
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any.cache[k] = v
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}
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any.remaining = nil
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any.err = iter.Error
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return
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}
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func (any *objectLazyAny) LastError() error {
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return any.err
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}
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func (any *objectLazyAny) ToBool() bool {
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if any.cache == nil {
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any.IterateObject() // trigger first value read
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}
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return len(any.cache) != 0
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}
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func (any *objectLazyAny) ToInt() int {
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if any.cache == nil {
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any.IterateObject() // trigger first value read
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}
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if len(any.cache) == 0 {
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return 0
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}
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return 1
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}
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func (any *objectLazyAny) ToInt32() int32 {
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if any.cache == nil {
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any.IterateObject() // trigger first value read
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}
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if len(any.cache) == 0 {
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return 0
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}
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return 1
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}
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func (any *objectLazyAny) ToInt64() int64 {
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if any.cache == nil {
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any.IterateObject() // trigger first value read
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}
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if len(any.cache) == 0 {
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return 0
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}
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return 1
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}
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func (any *objectLazyAny) ToUint() uint {
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if any.cache == nil {
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any.IterateObject() // trigger first value read
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}
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if len(any.cache) == 0 {
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return 0
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}
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return 1
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}
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func (any *objectLazyAny) ToUint32() uint32 {
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if any.cache == nil {
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any.IterateObject() // trigger first value read
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}
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if len(any.cache) == 0 {
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return 0
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}
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return 1
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}
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func (any *objectLazyAny) ToUint64() uint64 {
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if any.cache == nil {
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any.IterateObject() // trigger first value read
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}
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if len(any.cache) == 0 {
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return 0
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}
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return 1
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}
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func (any *objectLazyAny) ToFloat32() float32 {
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if any.cache == nil {
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any.IterateObject() // trigger first value read
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}
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if len(any.cache) == 0 {
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return 0
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}
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return 1
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}
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func (any *objectLazyAny) ToFloat64() float64 {
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if any.cache == nil {
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any.IterateObject() // trigger first value read
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}
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if len(any.cache) == 0 {
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return 0
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}
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return 1
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}
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func (any *objectLazyAny) ToString() string {
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if len(any.remaining) == len(any.buf) {
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// nothing has been parsed yet
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return *(*string)(unsafe.Pointer(&any.buf))
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} else {
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any.fillCache()
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str, err := MarshalToString(any.cache)
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any.err = err
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return str
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}
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}
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func (any *objectLazyAny) Get(path ...interface{}) Any {
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if len(path) == 0 {
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return any
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}
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var element Any
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switch firstPath := path[0].(type) {
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case string:
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element = any.fillCacheUntil(firstPath)
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if element == nil {
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element = &invalidAny{baseAny{}, fmt.Errorf("%v not found in %v", firstPath, any.cache)}
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}
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case int32:
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if '*' == firstPath {
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any.fillCache()
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mappedAll := map[string]Any{}
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for key, value := range any.cache {
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mapped := value.Get(path[1:]...)
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if mapped.ValueType() != Invalid {
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mappedAll[key] = mapped
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}
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}
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return wrapMap(mappedAll)
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} else {
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element = &invalidAny{baseAny{}, fmt.Errorf("%v not found in %v", firstPath, any.cache)}
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}
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default:
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element = &invalidAny{baseAny{}, fmt.Errorf("%v not found in %v", firstPath, any.cache)}
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}
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if len(path) == 1 {
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return element
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} else {
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return element.Get(path[1:]...)
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}
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}
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func (any *objectLazyAny) Keys() []string {
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any.fillCache()
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keys := make([]string, 0, len(any.cache))
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for key := range any.cache {
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keys = append(keys, key)
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}
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return keys
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}
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func (any *objectLazyAny) Size() int {
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any.fillCache()
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return len(any.cache)
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}
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func (any *objectLazyAny) IterateObject() (func() (string, Any, bool), bool) {
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if any.cache == nil {
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any.cache = map[string]Any{}
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}
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remaining := any.remaining
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if len(remaining) == len(any.buf) {
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iter := any.Parse()
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iter.head++
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c := iter.nextToken()
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if c != '}' {
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iter.unreadByte()
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k := string(iter.readObjectFieldAsBytes())
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v := iter.readAny(iter)
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any.cache[k] = v
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remaining = iter.buf[iter.head:]
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any.remaining = remaining
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} else {
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remaining = nil
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any.remaining = nil
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any.err = iter.Error
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return nil, false
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}
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}
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if len(any.cache) == 0 {
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return nil, false
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}
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keys := make([]string, 0, len(any.cache))
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values := make([]Any, 0, len(any.cache))
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for key, value := range any.cache {
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keys = append(keys, key)
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values = append(values, value)
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}
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nextKey := keys[0]
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nextValue := values[0]
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i := 1
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return func() (string, Any, bool) {
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key := nextKey
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value := nextValue
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if i < len(keys) {
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// read from cache
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nextKey = keys[i]
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nextValue = values[i]
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i++
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return key, value, true
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} else {
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// read from buffer
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iter := any.iter
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if iter == nil {
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iter = NewIterator()
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any.iter = iter
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}
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iter.ResetBytes(remaining)
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c := iter.nextToken()
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if c == ',' {
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nextKey = string(iter.readObjectFieldAsBytes())
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nextValue = iter.readAny(iter)
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any.cache[nextKey] = nextValue
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remaining = iter.buf[iter.head:]
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any.remaining = remaining
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any.err = iter.Error
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return key, value, true
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} else {
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nextKey = ""
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remaining = nil
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any.remaining = nil
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any.err = iter.Error
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return key, value, false
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}
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}
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}, true
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}
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func (any *objectLazyAny) GetObject() map[string]Any {
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any.fillCache()
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return any.cache
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}
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func (any *objectLazyAny) SetObject(val map[string]Any) bool {
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any.fillCache()
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any.cache = val
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return true
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}
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func (any *objectLazyAny) WriteTo(stream *Stream) {
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if len(any.remaining) == len(any.buf) {
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// nothing has been parsed yet
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stream.Write(any.buf)
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} else {
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any.fillCache()
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stream.WriteVal(any.cache)
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}
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}
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func (any *objectLazyAny) GetInterface() interface{} {
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any.fillCache()
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return any.cache
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}
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type objectAny struct {
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baseAny
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err error
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cache map[string]Any
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val reflect.Value
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}
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func wrapStruct(val interface{}) *objectAny {
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return &objectAny{baseAny{}, nil, nil, reflect.ValueOf(val)}
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}
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func (any *objectAny) ValueType() ValueType {
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return Object
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}
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func (any *objectAny) Parse() *Iterator {
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return nil
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}
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func (any *objectAny) fillCacheUntil(target string) Any {
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if any.cache == nil {
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any.cache = map[string]Any{}
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}
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element, found := any.cache[target]
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if found {
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return element
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}
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for i := len(any.cache); i < any.val.NumField(); i++ {
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field := any.val.Field(i)
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fieldName := any.val.Type().Field(i).Name
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var element Any
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if field.CanInterface() {
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element = Wrap(field.Interface())
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} else {
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element = &invalidAny{baseAny{}, fmt.Errorf("%v not found in %v", fieldName, any.cache)}
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}
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any.cache[fieldName] = element
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if fieldName == target {
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return element
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}
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}
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return nil
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}
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func (any *objectAny) fillCache() {
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if any.cache == nil {
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any.cache = map[string]Any{}
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}
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if len(any.cache) == any.val.NumField() {
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return
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}
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for i := 0; i < any.val.NumField(); i++ {
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field := any.val.Field(i)
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fieldName := any.val.Type().Field(i).Name
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var element Any
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if field.CanInterface() {
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element = Wrap(field.Interface())
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} else {
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element = &invalidAny{baseAny{}, fmt.Errorf("%v not found in %v", fieldName, any.cache)}
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}
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any.cache[fieldName] = element
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}
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}
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func (any *objectAny) LastError() error {
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return any.err
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}
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func (any *objectAny) ToBool() bool {
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return any.val.NumField() != 0
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}
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func (any *objectAny) ToInt() int {
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if any.val.NumField() == 0 {
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return 0
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}
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return 1
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}
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func (any *objectAny) ToInt32() int32 {
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if any.val.NumField() == 0 {
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return 0
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}
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return 1
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}
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func (any *objectAny) ToInt64() int64 {
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if any.val.NumField() == 0 {
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return 0
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}
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return 1
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}
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func (any *objectAny) ToUint() uint {
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if any.val.NumField() == 0 {
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return 0
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}
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return 1
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}
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func (any *objectAny) ToUint32() uint32 {
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if any.val.NumField() == 0 {
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return 0
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}
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return 1
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}
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func (any *objectAny) ToUint64() uint64 {
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if any.val.NumField() == 0 {
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return 0
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}
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return 1
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}
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func (any *objectAny) ToFloat32() float32 {
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if any.val.NumField() == 0 {
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return 0
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}
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return 1
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}
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func (any *objectAny) ToFloat64() float64 {
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if any.val.NumField() == 0 {
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return 0
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}
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return 1
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}
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|
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func (any *objectAny) ToString() string {
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if len(any.cache) == 0 {
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str, err := MarshalToString(any.val.Interface())
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any.err = err
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return str
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} else {
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any.fillCache()
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str, err := MarshalToString(any.cache)
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any.err = err
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return str
|
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}
|
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}
|
|
|
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func (any *objectAny) Get(path ...interface{}) Any {
|
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if len(path) == 0 {
|
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return any
|
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}
|
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var element Any
|
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switch firstPath := path[0].(type) {
|
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case string:
|
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element = any.fillCacheUntil(firstPath)
|
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if element == nil {
|
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element = &invalidAny{baseAny{}, fmt.Errorf("%v not found in %v", firstPath, any.cache)}
|
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}
|
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case int32:
|
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if '*' == firstPath {
|
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any.fillCache()
|
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mappedAll := map[string]Any{}
|
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for key, value := range any.cache {
|
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mapped := value.Get(path[1:]...)
|
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if mapped.ValueType() != Invalid {
|
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mappedAll[key] = mapped
|
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}
|
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}
|
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return wrapMap(mappedAll)
|
|
} else {
|
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element = &invalidAny{baseAny{}, fmt.Errorf("%v not found in %v", firstPath, any.cache)}
|
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}
|
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default:
|
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element = &invalidAny{baseAny{}, fmt.Errorf("%v not found in %v", firstPath, any.cache)}
|
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}
|
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if len(path) == 1 {
|
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return element
|
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} else {
|
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return element.Get(path[1:]...)
|
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}
|
|
}
|
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|
|
func (any *objectAny) Keys() []string {
|
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any.fillCache()
|
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keys := make([]string, 0, len(any.cache))
|
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for key := range any.cache {
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keys = append(keys, key)
|
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}
|
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return keys
|
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}
|
|
|
|
func (any *objectAny) Size() int {
|
|
any.fillCache()
|
|
return len(any.cache)
|
|
}
|
|
|
|
func (any *objectAny) IterateObject() (func() (string, Any, bool), bool) {
|
|
if any.cache == nil {
|
|
any.cache = map[string]Any{}
|
|
}
|
|
if any.val.NumField() == 0 {
|
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return nil, false
|
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}
|
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cacheKeys := make([]string, len(any.cache))
|
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i := 0
|
|
for key := range any.cache {
|
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cacheKeys[i] = key
|
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i++
|
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}
|
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i = 0
|
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return func() (string, Any, bool) {
|
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if i == any.val.NumField() {
|
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return "", nil, false
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}
|
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var fieldName string
|
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var fieldValueAsAny Any
|
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if i == len(cacheKeys) {
|
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fieldName = any.val.Type().Field(i).Name
|
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cacheKeys = append(cacheKeys, fieldName)
|
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fieldValue := any.val.Field(i)
|
|
if fieldValue.CanInterface() {
|
|
fieldValueAsAny = Wrap(fieldValue.Interface())
|
|
any.cache[fieldName] = fieldValueAsAny
|
|
} else {
|
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fieldValueAsAny = &invalidAny{baseAny{}, fmt.Errorf("%v not found in %v", fieldName, any.cache)}
|
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any.cache[fieldName] = fieldValueAsAny
|
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}
|
|
} else {
|
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fieldName = cacheKeys[i]
|
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fieldValueAsAny = any.cache[fieldName]
|
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}
|
|
i++
|
|
return fieldName, fieldValueAsAny, i != any.val.NumField()
|
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}, true
|
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}
|
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|
|
func (any *objectAny) GetObject() map[string]Any {
|
|
any.fillCache()
|
|
return any.cache
|
|
}
|
|
|
|
func (any *objectAny) SetObject(val map[string]Any) bool {
|
|
any.fillCache()
|
|
any.cache = val
|
|
return true
|
|
}
|
|
|
|
func (any *objectAny) WriteTo(stream *Stream) {
|
|
if len(any.cache) == 0 {
|
|
// nothing has been parsed yet
|
|
stream.WriteVal(any.val)
|
|
} else {
|
|
any.fillCache()
|
|
stream.WriteVal(any.cache)
|
|
}
|
|
}
|
|
|
|
func (any *objectAny) GetInterface() interface{} {
|
|
any.fillCache()
|
|
return any.cache
|
|
}
|
|
|
|
type mapAny struct {
|
|
baseAny
|
|
err error
|
|
cache map[string]Any
|
|
val reflect.Value
|
|
}
|
|
|
|
func wrapMap(val interface{}) *mapAny {
|
|
return &mapAny{baseAny{}, nil, nil, reflect.ValueOf(val)}
|
|
}
|
|
|
|
func (any *mapAny) ValueType() ValueType {
|
|
return Object
|
|
}
|
|
|
|
func (any *mapAny) Parse() *Iterator {
|
|
return nil
|
|
}
|
|
|
|
func (any *mapAny) fillCacheUntil(target string) Any {
|
|
if any.cache == nil {
|
|
any.cache = map[string]Any{}
|
|
}
|
|
element, found := any.cache[target]
|
|
if found {
|
|
return element
|
|
}
|
|
for _, key := range any.val.MapKeys() {
|
|
keyAsStr := key.String()
|
|
_, found := any.cache[keyAsStr]
|
|
if found {
|
|
continue
|
|
}
|
|
element := Wrap(any.val.MapIndex(key).Interface())
|
|
any.cache[keyAsStr] = element
|
|
if keyAsStr == target {
|
|
return element
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (any *mapAny) fillCache() {
|
|
if any.cache == nil {
|
|
any.cache = map[string]Any{}
|
|
}
|
|
if len(any.cache) == any.val.Len() {
|
|
return
|
|
}
|
|
for _, key := range any.val.MapKeys() {
|
|
keyAsStr := key.String()
|
|
element := Wrap(any.val.MapIndex(key).Interface())
|
|
any.cache[keyAsStr] = element
|
|
}
|
|
}
|
|
|
|
func (any *mapAny) LastError() error {
|
|
return any.err
|
|
}
|
|
|
|
func (any *mapAny) ToBool() bool {
|
|
return any.val.Len() != 0
|
|
}
|
|
|
|
func (any *mapAny) ToInt() int {
|
|
if any.val.Len() == 0 {
|
|
return 0
|
|
}
|
|
return 1
|
|
}
|
|
|
|
func (any *mapAny) ToInt32() int32 {
|
|
if any.val.Len() == 0 {
|
|
return 0
|
|
}
|
|
return 1
|
|
}
|
|
|
|
func (any *mapAny) ToInt64() int64 {
|
|
if any.val.Len() == 0 {
|
|
return 0
|
|
}
|
|
return 1
|
|
}
|
|
|
|
func (any *mapAny) ToUint() uint {
|
|
if any.val.Len() == 0 {
|
|
return 0
|
|
}
|
|
return 1
|
|
}
|
|
|
|
func (any *mapAny) ToUint32() uint32 {
|
|
if any.val.Len() == 0 {
|
|
return 0
|
|
}
|
|
return 1
|
|
}
|
|
|
|
func (any *mapAny) ToUint64() uint64 {
|
|
if any.val.Len() == 0 {
|
|
return 0
|
|
}
|
|
return 1
|
|
}
|
|
|
|
func (any *mapAny) ToFloat32() float32 {
|
|
if any.val.Len() == 0 {
|
|
return 0
|
|
}
|
|
return 1
|
|
}
|
|
|
|
func (any *mapAny) ToFloat64() float64 {
|
|
if any.val.Len() == 0 {
|
|
return 0
|
|
}
|
|
return 1
|
|
}
|
|
|
|
func (any *mapAny) ToString() string {
|
|
if len(any.cache) == 0 {
|
|
str, err := MarshalToString(any.val.Interface())
|
|
any.err = err
|
|
return str
|
|
} else {
|
|
any.fillCache()
|
|
str, err := MarshalToString(any.cache)
|
|
any.err = err
|
|
return str
|
|
}
|
|
}
|
|
|
|
func (any *mapAny) Get(path ...interface{}) Any {
|
|
if len(path) == 0 {
|
|
return any
|
|
}
|
|
var element Any
|
|
switch firstPath := path[0].(type) {
|
|
case string:
|
|
element = any.fillCacheUntil(firstPath)
|
|
if element == nil {
|
|
element = &invalidAny{baseAny{}, fmt.Errorf("%v not found in %v", firstPath, any.cache)}
|
|
}
|
|
case int32:
|
|
if '*' == firstPath {
|
|
any.fillCache()
|
|
mappedAll := map[string]Any{}
|
|
for key, value := range any.cache {
|
|
mapped := value.Get(path[1:]...)
|
|
if mapped.ValueType() != Invalid {
|
|
mappedAll[key] = mapped
|
|
}
|
|
}
|
|
return wrapMap(mappedAll)
|
|
} else {
|
|
element = &invalidAny{baseAny{}, fmt.Errorf("%v not found in %v", firstPath, any.cache)}
|
|
}
|
|
default:
|
|
element = &invalidAny{baseAny{}, fmt.Errorf("%v not found in %v", firstPath, any.cache)}
|
|
}
|
|
if len(path) == 1 {
|
|
return element
|
|
} else {
|
|
return element.Get(path[1:]...)
|
|
}
|
|
}
|
|
|
|
func (any *mapAny) Keys() []string {
|
|
any.fillCache()
|
|
keys := make([]string, 0, len(any.cache))
|
|
for key := range any.cache {
|
|
keys = append(keys, key)
|
|
}
|
|
return keys
|
|
}
|
|
|
|
func (any *mapAny) Size() int {
|
|
any.fillCache()
|
|
return len(any.cache)
|
|
}
|
|
|
|
func (any *mapAny) IterateObject() (func() (string, Any, bool), bool) {
|
|
any.fillCache()
|
|
if len(any.cache) == 0 {
|
|
return nil, false
|
|
}
|
|
keys := make([]string, len(any.cache))
|
|
values := make([]Any, len(any.cache))
|
|
i := 0
|
|
for k, v := range any.cache {
|
|
keys[i] = k
|
|
values[i] = v
|
|
i++
|
|
}
|
|
i = 0
|
|
return func() (string, Any, bool) {
|
|
if i == len(keys) {
|
|
return "", nil, false
|
|
}
|
|
k := keys[i]
|
|
v := values[i]
|
|
i++
|
|
return k, v, i != len(keys)
|
|
}, true
|
|
}
|
|
|
|
func (any *mapAny) GetObject() map[string]Any {
|
|
any.fillCache()
|
|
return any.cache
|
|
}
|
|
|
|
func (any *mapAny) SetObject(val map[string]Any) bool {
|
|
any.fillCache()
|
|
any.cache = val
|
|
return true
|
|
}
|
|
|
|
func (any *mapAny) WriteTo(stream *Stream) {
|
|
if len(any.cache) == 0 {
|
|
// nothing has been parsed yet
|
|
stream.WriteVal(any.val)
|
|
} else {
|
|
any.fillCache()
|
|
stream.WriteVal(any.cache)
|
|
}
|
|
}
|
|
|
|
func (any *mapAny) GetInterface() interface{} {
|
|
any.fillCache()
|
|
return any.cache
|
|
}
|