private Type CreateDynamicClass(DynamicProperty[] properties)
{
var cookie = rwLock.UpgradeToWriterLock(Timeout.Infinite);
try
{
var typeName = "DynamicClass" + (classCount + 1);
#if ENABLE_LINQ_PARTIAL_TRUST
new ReflectionPermission(PermissionState.Unrestricted).Assert();
#endif
try
{
var tb = module.DefineType(typeName, TypeAttributes.Class |
TypeAttributes.Public, typeof(DynamicClass));
var fields = GenerateProperties(tb, properties);
GenerateEquals(tb, fields);
GenerateGetHashCode(tb, fields);
Type result = tb.CreateTypeInfo();
classCount++;
return result;
}
finally
{
#if ENABLE_LINQ_PARTIAL_TRUST
PermissionSet.RevertAssert();
#endif
}
}
finally
{
rwLock.DowngradeFromWriterLock(ref cookie);
}
}
private Type CreateDynamicClass(Signature signature)
{
#if SILVERLIGHT
_rwLock.UpgradeToWriterLock(Timeout.Infinite);
#else
_rwLock.EnterWriteLock();
#endif
try
{
Type type;
//do a final check to make sure the type hasn't been generated.
if (_classes.TryGetValue(signature, out type))
{
return(type);
}
string typeName = "DynamicClass" + (_classCount + 1);
#if ENABLE_LINQ_PARTIAL_TRUST
new ReflectionPermission(PermissionState.Unrestricted).Assert();
#endif
try
{
TypeBuilder tb = this._module.DefineType(
typeName,
TypeAttributes.Class | TypeAttributes.Public,
typeof(DynamicClass));
FieldInfo[] fields = GenerateProperties(tb, signature.properties);
GenerateConstructor(tb, fields);
GenerateEquals(tb, fields);
GenerateGetHashCode(tb, fields);
Type result = tb.CreateType();
_classCount++;
_classes.Add(signature, result);
return(result);
}
finally
{
#if ENABLE_LINQ_PARTIAL_TRUST
PermissionSet.RevertAssert();
#endif
}
}
finally
{
#if SILVERLIGHT
_rwLock.DowngradeToReaderLock();
#else
_rwLock.ExitWriteLock();
#endif
}
}
Type CreateAndCacheDynamicClass(Signature signature)
{
LockCookie cookie = rwLock.UpgradeToWriterLock(Timeout.Infinite);
try
{
Type type;
if (!classes.TryGetValue(signature, out type))
{
type = CreateDynamicClass(signature.properties);
classes.Add(signature, type);
}
return(type);
}
finally
{
rwLock.DowngradeFromWriterLock(ref cookie);
}
}
