public static IEnumerable <Parameter> GetParameters(this MethodDefinition m, CustomAttribute regatt)
{
var jnisig = (string)(regatt.ConstructorArguments.Count > 1 ? regatt.ConstructorArguments [1].Value : regatt.Properties.First(p => p.Name == "JniSignature").Argument.Value);
var types = jnisig == null ? null : JavaNativeTypeManager.FromSignature(jnisig);
var e = types?.GetEnumerator();
foreach (var p in m.Parameters)
{
if (e != null && !e.MoveNext())
{
e = null;
}
// Here we do some tricky thing:
// Both java.io.InputStream and java.io.OutputStream could be mapped to
// System.IO.Stream. And when there is Stream in parameters, we have to
// determine which direction of the Stream it was - in or out.
// To do that, we inspect JNI Signature to handle that.
//
// We could *always* use this JNI information, *IF* there were no
// int->enum conversion. Sadly this is not true, we still have to expect
// custom enum types and cannot simply use JNI signature here.
var rawtype = e?.Current.Type;
var type = p.ParameterType.FullName == "System.IO.Stream" && e != null ? e.Current.Type : null;
var isNotNull = p.GetTypeNullability(m) == Nullability.NotNull;
yield return(CecilApiImporter.CreateParameter(p, type, rawtype, isNotNull));
}
}
public Signature(string name, string signature, string connector, string managedParameters, string outerType, string superCall)
{
ManagedParameters = managedParameters;
JniSignature = signature;
Method = "n_" + name + ":" + signature + ":" + connector;
Name = name;
var jnisig = signature;
int closer = jnisig.IndexOf(")");
string ret = jnisig.Substring(closer + 1);
retval = JavaNativeTypeManager.Parse(ret).Type;
string jniparms = jnisig.Substring(1, closer - 1);
if (string.IsNullOrEmpty(jniparms) && string.IsNullOrEmpty(superCall))
{
return;
}
var parms = new StringBuilder();
var scall = new StringBuilder();
var acall = new StringBuilder();
bool first = true;
int i = 0;
foreach (JniTypeName jti in JavaNativeTypeManager.FromSignature(jniparms))
{
if (outerType != null)
{
acall.Append(outerType).Append(".this");
outerType = null;
continue;
}
string parmType = jti.Type;
if (!first)
{
parms.Append(", ");
scall.Append(", ");
acall.Append(", ");
}
first = false;
parms.Append(parmType).Append(" p").Append(i);
scall.Append("p").Append(i);
acall.Append("p").Append(i);
++i;
}
this.parms = parms.ToString();
this.call = superCall != null ? superCall : scall.ToString();
this.ActivateCall = acall.ToString();
}