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Copy pathStringDictionaryStorage.cs
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147 lines (123 loc) · 4.86 KB
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the Apache 2.0 License.
// See the LICENSE file in the project root for more information.
using System;
using System.Collections;
using System.Collections.Generic;
using System.Threading;
using Microsoft.Scripting.Runtime;
using IronPython.Runtime;
namespace IronPythonTest {
[Serializable]
internal class StringDictionaryStorage : DictionaryStorage {
private readonly IDictionary<string, object>/*!*/ _dict; // the underlying dictionary
private Dictionary<object, object> _objDict;
public StringDictionaryStorage(IDictionary<string, object>/*!*/ dict) {
_dict = dict;
}
public StringDictionaryStorage(IDictionary<string, object> dict, Dictionary<object, object> objDict) {
_dict = dict;
_objDict = objDict;
}
public override void Add(ref DictionaryStorage storage, object key, object value) {
lock (this) {
string strKey = key as string;
if (strKey != null) {
_dict[strKey] = value;
} else {
EnsureObjectDictionary();
_objDict[CustomStringDictionary.NullToObj(key)] = value;
}
}
}
public override bool Contains(object key) {
lock (this) {
string strKey = key as string;
if (strKey != null) {
return _dict.ContainsKey(strKey);
}
if (_objDict != null) {
return _objDict.ContainsKey(CustomStringDictionary.NullToObj(key));
}
return false;
}
}
public override bool Remove(ref DictionaryStorage storage, object key) {
lock (this) {
string strKey = key as string;
if (strKey != null) {
return _dict.Remove(strKey);
}
if (_objDict != null) {
return _objDict.Remove(CustomStringDictionary.NullToObj(key));
}
return false;
}
}
public override bool TryGetValue(object key, out object value) {
lock (this) {
string strKey = key as string;
if (strKey != null) {
return _dict.TryGetValue(strKey, out value);
}
if (_objDict != null) {
return _objDict.TryGetValue(CustomStringDictionary.NullToObj(key), out value);
}
value = null;
return false;
}
}
public override int Count {
get {
lock (this) {
int count = _dict.Count;
if (_objDict != null) {
count += _objDict.Count;
}
return count;
}
}
}
public override void Clear(ref DictionaryStorage storage) {
lock (this) {
_dict.Clear();
_objDict?.Clear();
}
}
public override List<KeyValuePair<object, object>> GetItems() {
List<KeyValuePair<object, object>> res = new List<KeyValuePair<object, object>>();
lock (this) {
foreach (KeyValuePair<string, object> kvp in _dict) {
res.Add(new KeyValuePair<object, object>(kvp.Key, kvp.Value));
}
if (_objDict != null) {
foreach (KeyValuePair<object, object> kvp in _objDict) {
res.Add(kvp);
}
}
}
return res;
}
public override DictionaryStorage Clone() {
lock (this) {
IDictionary<string, object> dict;
ICloneable cloneable = _dict as ICloneable;
if (cloneable != null) {
dict = (IDictionary<string, object>)cloneable.Clone();
} else {
dict = new Dictionary<string, object>(_dict, StringComparer.Ordinal);
}
Dictionary<object, object> objDict = null;
if (_objDict != null) {
objDict = new Dictionary<object, object>(_objDict, DefaultContext.DefaultPythonContext.EqualityComparer);
}
return new StringDictionaryStorage(dict, objDict);
}
}
private void EnsureObjectDictionary() {
if (_objDict == null) {
Interlocked.CompareExchange<Dictionary<object, object>>(ref _objDict, new Dictionary<object, object>(DefaultContext.DefaultPythonContext.EqualityComparer), null);
}
}
}
}