public IntPtr GetParameterText( int method, int parameter, ParameterTextType type ){
if (this.methods == null) return IntPtr.Zero;
if (method < 0 || method >= GetOverloadCount()) return IntPtr.Zero;
if (parameter < 0 || parameter >= GetParameterCount( method )) return IntPtr.Zero;
string name;
string description;
string display;
this.methods.GetParameterInfo( method, parameter, out name, out display, out description );
string result = null;
switch (type) {
case ParameterTextType.PTT_NAME:
result = name;
break;
case ParameterTextType.PTT_DESCRIPTION:
//result = description;
break;
case ParameterTextType.PTT_DECLARATION:
result = display;
break;
default:
break;
}
return result == null ? IntPtr.Zero : Marshal.StringToBSTR(result);
}
private static int IndexOfParameterTextType(ParameterTextType parameterTextType)
{
switch (parameterTextType)
{
case ParameterTextType.PTT_DECLARATION:
return 0;
case ParameterTextType.PTT_DESCRIPTION:
return 1;
case ParameterTextType.PTT_NAME:
return 2;
}
throw new ArgumentOutOfRangeException("parameterTextType");
}
public IntPtr GetOrCreateParameter(int index, ParameterTextType parameterTextType, Func<string> factory)
{
var p = parametersCache[index] ?? (parametersCache[index] = new NativeStringsCacheForParameter());
return p.GetOrCreate(parameterTextType, factory);
}
public IntPtr GetOrCreate(ParameterTextType parameterTextType, Func<string> factory)
{
return nativeStringCache.GetOrCreateStringPointer(IndexOfParameterTextType(parameterTextType), factory);
}
public IntPtr GetParameterText(int method, int parameter, ParameterTextType type)
{
if (this.methods == null) return IntPtr.Zero;
if (method < 0 || method >= GetOverloadCount()) return IntPtr.Zero;
if (parameter < 0 || parameter >= GetParameterCount(method)) return IntPtr.Zero;
var overload = nativeStringsCacheForOverloads.GetOverload(method);
return overload.GetOrCreateParameter(
parameter,
type,
() =>
{
string name;
string description;
string display;
this.methods.GetParameterInfo(method, parameter, out name, out display, out description);
switch (type)
{
case ParameterTextType.PTT_NAME:
return name;
case ParameterTextType.PTT_DESCRIPTION:
return description;
case ParameterTextType.PTT_DECLARATION:
return display;
default:
throw new ArgumentOutOfRangeException("type");
}
}
);
}
