public void Copy(BufferInstance targetBuffer, int targetStart, int sourceStart)
{
Copy(targetBuffer, targetStart, sourceStart, Limit - Offset);
}
public void Copy(BufferInstance targetBuffer, int targetStart, int sourceStart, int sourceEnd)
{
int len = sourceEnd - sourceStart;
if (targetStart < targetBuffer.Offset || targetStart + len > targetBuffer.Limit)
throw new JavaScriptException(Engine, "RangeError", "target index out of range");
if (sourceStart < Offset || sourceEnd > Limit || sourceEnd < sourceStart)
throw new JavaScriptException(Engine, "RangeError", "source index out of range");
for (int i = sourceStart, j = targetStart; i < sourceEnd; ++i, ++j) {
targetBuffer.Buffer[j] = Buffer[i];
}
}
public void Copy(BufferInstance targetBuffer, int targetStart)
{
Copy(targetBuffer, targetStart, 0);
}
public void Copy(BufferInstance targetBuffer)
{
Copy(targetBuffer, 0);
}
public object ReadFileSync(string path, [DefaultParameterValue(null)] ObjectInstance options = null) {
if (!AllowSync)
throw new JavaScriptException(Engine, "Error", "synchronous operations are not permitted");
try {
string encoding = options != null ? options.GetPropertyValue("encoding") as string : null;
byte[] b = File.ReadAllBytes(CheckPath(path));
object result = new BufferInstance(Context, Context.Buffer.Constructor.InstancePrototype, b, 0, b.Length);
if (encoding != null) {
result = (result as BufferInstance).toString(encoding);
}
return result;
} catch (Exception ex) {
throw new JavaScriptException(Engine, "Error", ex.Message);
}
}
private void ReadFileAsync(object arguments) {
object[] args = arguments as object[];
FunctionInstance callback = null;
ObjectInstance options = null;
try {
object[] readArgs = args[1] as object[];
if (readArgs.Length >= 2) {
options = readArgs[0] as ObjectInstance;
callback = readArgs[1] as FunctionInstance;
} else if (readArgs.Length >= 1) {
if (readArgs[0] is FunctionInstance) {
callback = readArgs[0] as FunctionInstance;
}
}
string path = CheckPath(args[0] as string);
string encoding = options != null ? options.GetPropertyValue("encoding") as string : null;
byte[] b = File.ReadAllBytes(path);
object result = new BufferInstance(Context, Context.Buffer.Constructor.InstancePrototype, b, 0, b.Length);
if (encoding != null) {
result = (result as BufferInstance).toString(encoding);
}
if (callback != null)
Context.NextTick(callback.Bind(this, null, result));
} catch (Exception ex) {
if (callback != null)
Context.NextTick(callback.Bind(this, Engine.Error.Construct(ex.Message)));
}
}
public string Write(BufferInstance buffer)
{
try {
int charCount = Decoder.GetCharCount(buffer.Buffer, buffer.Offset, buffer.Limit - buffer.Offset, false);
char[] chars = new char[charCount];
int n = Decoder.GetChars(buffer.Buffer, buffer.Offset, buffer.Limit - buffer.Offset, chars, 0, false);
return new string(chars, 0, n);
} catch (Exception ex) {
throw new JavaScriptException(Engine, "Error", ex.Message);
}
}