本文整理汇总了C#中Jint.Native.JsObject.TryGetProperty方法的典型用法代码示例。如果您正苦于以下问题：C# JsObject.TryGetProperty方法的具体用法？C# JsObject.TryGetProperty怎么用？C# JsObject.TryGetProperty使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Jint.Native.JsObject的用法示例。
在下文中一共展示了JsObject.TryGetProperty方法的7个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: IndexOfImpl
/// <summary>
/// 15.4.4.15
/// </summary>
/// <param name="target"></param>
/// <param name="parameters"></param>
/// <returns></returns>
public JsInstance IndexOfImpl(JsObject target, JsInstance[] parameters) {
if (parameters.Length == 0) {
return Global.NumberClass.New(-1);
}
int len = (int)target["length"].ToNumber();
if (len == 0)
return Global.NumberClass.New(-1);
int n = 0;
if (parameters.Length > 1)
n = Convert.ToInt32(parameters[1].ToNumber());
int k;
if (n >= len)
return Global.NumberClass.New(-1);
JsInstance searchParameter = parameters[0];
if (n >= 0)
k = n;
else
k = len - Math.Abs(n);
while (k < len) {
JsInstance result = null;
if (target.TryGetProperty(k.ToString(), out result)) {
if (JsInstance.StrictlyEquals(Global, result, searchParameter) == Global.BooleanClass.True) {
return Global.NumberClass.New(k);
}
}
k++;
}
return Global.NumberClass.New(-1);
}示例2: PutDocument
private void PutDocument(string key, JsObject doc, JsObject meta)
{
if (doc == null)
{
throw new InvalidOperationException(
string.Format("Created document cannot be null or empty. Document key: '{0}'", key));
}
var newDocument = new JsonDocument
{
Key = key,
DataAsJson = ToRavenJObject(doc)
};
if (meta == null)
{
RavenJToken value;
if (newDocument.DataAsJson.TryGetValue("@metadata", out value))
{
newDocument.DataAsJson.Remove("@metadata");
newDocument.Metadata = (RavenJObject) value;
}
}
else
{
foreach (var etagKeyName in EtagKeyNames)
{
JsInstance result;
if (!meta.TryGetProperty(etagKeyName, out result))
continue;
string etag = result.ToString();
meta.Delete(etagKeyName);
if (string.IsNullOrEmpty(etag))
continue;
Etag newDocumentEtag;
if (Etag.TryParse(etag, out newDocumentEtag) == false)
{
throw new InvalidOperationException(string.Format("Invalid ETag value '{0}' for document '{1}'",
etag, key));
}
newDocument.Etag = newDocumentEtag;
}
newDocument.Metadata = ToRavenJObject(meta);
}
ValidateDocument(newDocument);
if(key == null || key.EndsWith("/"))
createdDocIdentity.Add(newDocument);
else
createdDocDict[key] = newDocument;
}示例3: LastIndexOfImpl
/// <summary>
/// 15.4.4.15
/// </summary>
/// <param name="target"></param>
/// <param name="parameters"></param>
/// <returns></returns>
public JsInstance LastIndexOfImpl(JsObject target, JsInstance[] parameters) {
if (parameters.Length == 0) {
return Global.NumberClass.New(-1);
}
int len = target.Length;
if (len == 0)
return Global.NumberClass.New(-1);
int n = len;
if (parameters.Length > 1)
n = Convert.ToInt32(parameters[1].ToNumber());
int k;
JsInstance searchParameter = parameters[0];
if (n >= 0)
k = Math.Min(n, len - 1);
else
k = len - Math.Abs(n - 1);
while (k >= 0) {
JsInstance result = null;
if (target.TryGetProperty(k.ToString(), out result)) {
if (result == searchParameter) {
return Global.NumberClass.New(k);
}
}
k--;
}
return Global.NumberClass.New(-1);
}示例4: UnShift
/// <summary>
/// 15.4.4.13
/// </summary>
/// <param name="target"></param>
/// <param name="parameters"></param>
/// <returns></returns>
public JsInstance UnShift(JsObject target, JsInstance[] parameters) {
for (int k = target.Length; k > 0; k--) {
JsInstance result = null;
string from = (k - 1).ToString();
string to = (k + parameters.Length - 1).ToString();
if (target.TryGetProperty(from, out result)) {
target[to] = result;
}
else {
target.Delete(to);
}
}
List<JsInstance> items = new List<JsInstance>(parameters);
for (int j = 0; items.Count > 0; j++) {
JsInstance e = items[0];
items.RemoveAt(0);
target[j.ToString()] = e;
}
return Global.NumberClass.New(target.Length);
}示例5: Splice
/// <summary>
/// 15.4.4.12
/// </summary>
/// <param name="target"></param>
/// <param name="parameters"></param>
/// <returns></returns>
public JsInstance Splice(JsObject target, JsInstance[] parameters) {
JsArray array = Global.ArrayClass.New();
int relativeStart = Convert.ToInt32(parameters[0].ToNumber());
int actualStart = relativeStart < 0 ? Math.Max(target.Length + relativeStart, 0) : Math.Min(relativeStart, target.Length);
int actualDeleteCount = Math.Min(Math.Max(Convert.ToInt32(parameters[1].ToNumber()), 0), target.Length - actualStart);
int len = target.Length;
for (int k = 0; k < actualDeleteCount; k++) {
string from = (relativeStart + k).ToString();
JsInstance result = null;
if (target.TryGetProperty(from, out result)) {
array.put(k, result);
}
}
List<JsInstance> items = new List<JsInstance>();
items.AddRange(parameters);
items.RemoveAt(0);
items.RemoveAt(0);
// use non-distructional copy, determine direction
if (items.Count < actualDeleteCount) {
for (int k = actualStart; k < len - actualDeleteCount; k++) {
JsInstance result = null;
string from = (k + actualDeleteCount).ToString();
string to = (k + items.Count).ToString();
if (target.TryGetProperty(from, out result)) {
target[to] = result;
}
else {
target.Delete(to);
}
}
for (int k = target.Length; k > len - actualDeleteCount + items.Count; k--) {
target.Delete((k - 1).ToString());
}
target.Length = len - actualDeleteCount + items.Count;
}
else {
for (int k = len - actualDeleteCount; k > actualStart; k--) {
JsInstance result = null;
string from = (k + actualDeleteCount - 1).ToString();
string to = (k + items.Count - 1).ToString();
if (target.TryGetProperty(from, out result)) {
target[to] = result;
}
else {
target.Delete(to);
}
}
}
for (int k = 0; k < items.Count; k++)
target[k.ToString()] = items[k];
return array;
}示例6: Reverse
/// <summary>
/// 15.4.4.8
/// </summary>
/// <param name="target"></param>
/// <param name="parameters"></param>
/// <returns></returns>
public JsInstance Reverse(JsObject target, JsInstance[] parameters) {
int len = target.Length;
int middle = len / 2;
for (int lower = 0; lower != middle; lower++) {
int upper = len - lower - 1;
string upperP = upper.ToString();
string lowerP = lower.ToString();
JsInstance lowerValue = null;
JsInstance upperValue = null;
bool lowerExists = target.TryGetProperty(lowerP, out lowerValue);
bool upperExists = target.TryGetProperty(upperP, out upperValue);
if (lowerExists) {
target[upperP] = lowerValue;
}
else {
target.Delete(upperP);
}
if (upperExists) {
target[lowerP] = upperValue;
}
else {
target.Delete(lowerP);
}
}
return target;
}示例7: Splice
/// <summary>
/// 15.4.4.12
/// </summary>
/// <param name="target"></param>
/// <param name="parameters"></param>
/// <returns></returns>
public JsInstance Splice(JsObject target, JsInstance[] parameters)
{
JsArray array = Global.ArrayClass.New();
int relativeStart = Convert.ToInt32(parameters[0].ToNumber());
int actualStart = relativeStart < 0 ? Math.Max(target.Length + relativeStart, 0) : Math.Min(relativeStart, target.Length);
int actualDeleteCount = Math.Min(Math.Max(Convert.ToInt32(parameters[1].ToNumber()), 0), target.Length - actualStart);
int len = target.Length;
for (int k = 0; k < actualDeleteCount; k++)
{
string from = (relativeStart + k).ToString();
JsInstance result = null;
if (target.TryGetProperty(from, out result))
{
array.DefineOwnProperty(k.ToString(), new ValueDescriptor(target, k.ToString(), result));
}
}
List<JsInstance> items = new List<JsInstance>();
items.AddRange(parameters);
items.RemoveAt(0);
items.RemoveAt(0);
if (items.Count < actualDeleteCount)
{
for (int k = actualStart; k < len - actualDeleteCount; k++)
{
JsInstance result = null;
string from = (k + actualDeleteCount).ToString();
string to = (k + items.Count).ToString();
if (target.TryGetProperty(from, out result))
{
target[to] = result;
}
else
{
target.Delete(to);
}
}
for (int k = target.Length; k > len - actualDeleteCount + items.Count; k--)
{
target.Delete((k - 1).ToString());
}
}
else
{
for (int k = len - actualDeleteCount; k > actualStart; k--)
{
JsInstance result = null;
string from = (k + actualDeleteCount - 1).ToString();
string to = (k + items.Count - 1).ToString();
if (target.TryGetProperty(from, out result))
{
target[to] = result;
}
else
{
target.Delete(to);
}
}
if (target.length != int.MinValue && target.Prototype != Prototype)
target.length += len - actualDeleteCount + items.Count;
for (int k = 0; items.Count > 0; k++)
{
JsInstance e = items[0];
items.RemoveAt(0);
target[k.ToString()] = e;
}
}
return array;
}