TensorFlow.NET/src/TensorFlowNET.Core/Binding.Util.cs at master · BOYMMM/TensorFlow.NET · GitHub

History

377 lines (325 loc) · 11.7 KB

Raw

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

305

306

307

308

309

310

311

312

313

314

315

316

317

318

319

320

321

322

323

324

325

326

327

328

329

330

331

332

333

334

335

336

337

338

339

340

341

342

343

344

345

346

347

348

349

350

351

352

353

354

355

356

357

358

359

360

361

362

363

364

365

366

367

368

369

370

371

372

373

374

375

376

377

/*****************************************************************************

Licensed under the Apache License, Version 2.0 (the "License");

you may not use this file except in compliance with the License.

You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software

distributed under the License is distributed on an "AS IS" BASIS,

WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

See the License for the specific language governing permissions and

limitations under the License.

******************************************************************************/

using NumSharp;

using System;

using System.Collections;

using System.Collections.Generic;

using System.ComponentModel;

using System.Diagnostics;

using System.Linq;

using NumSharp.Utilities;

namespace Tensorflow

{

/// <summary>

/// Binding utilities to mimic python functions.

/// </summary>

public static partial class Binding

{

public static T2 get<T1, T2>(this Dictionary<T1, T2> dict, T1 key)

=> key == null ?

default(T2) :

(dict.ContainsKey(key) ? dict[key] : default(T2));

public static void add<T>(this IList<T> list, T element)

=> list.Add(element);

public static void append<T>(this IList<T> list, T element)

=> list.Add(element);

public static T[] concat<T>(this IList<T> list1, IList<T> list2)

{

var list = new List<T>();

list.AddRange(list1);

list.AddRange(list2);

return list.ToArray();

}

public static void extend<T>(this List<T> list, IEnumerable<T> elements)

=> list.AddRange(elements);

private static string _tostring(object obj)

{

switch (obj)

{

case NDArray nd:

return nd.ToString(false);

case Array arr:

if (arr.Rank!=1 || arr.GetType().GetElementType()?.IsArray == true)

arr = Arrays.Flatten(arr);

var objs = toObjectArray(arr);

return $"[{string.Join(", ", objs.Select(_tostring))}]";

default:

return obj?.ToString() ?? "null";

}

object[] toObjectArray(Array arr)

{

var len = arr.LongLength;

var ret = new object[len];

for (long i = 0; i < len; i++)

{

ret[i] = arr.GetValue(i);

}

return ret;

}

public static void print(object obj)

{

Console.WriteLine(_tostring(obj));

}

public static void print(string format, params object[] objects)

{

if (!format.Contains("{}"))

{

Console.WriteLine(format + " " + string.Join(" ", objects.Select(x => x.ToString())));

return;

}

foreach(var obj in objects)

{

}

Console.WriteLine(format);

}

public static int len(object a)

{

switch (a)

{

case Array arr:

return arr.Length;

case IList arr:

return arr.Count;

case ICollection arr:

return arr.Count;

case NDArray ndArray:

return ndArray.ndim == 0 ? 1 : ndArray.shape[0];

case IEnumerable enumerable:

return enumerable.OfType<object>().Count();

}

throw new NotImplementedException("len() not implemented for type: " + a.GetType());

}

public static float min(float a, float b)

=> Math.Min(a, b);

public static T[] list<T>(IEnumerable<T> list)

=> list.ToArray();

public static IEnumerable<int> range(int end)

{

return Enumerable.Range(0, end);

}

public static IEnumerable<int> range(int start, int end)

{

return Enumerable.Range(start, end - start);

}

public static T New<T>() where T : ITensorFlowObject, new()

{

var instance = new T();

instance.__init__();

return instance;

}

[DebuggerStepThrough]

[DebuggerNonUserCode()] // with "Just My Code" enabled this lets the debugger break at the origin of the exception

public static void tf_with(ITensorFlowObject py, Action<ITensorFlowObject> action)

{

try

{

py.__enter__();

action(py);

}

finally

{

py.__exit__();

py.Dispose();

}

[DebuggerStepThrough]

[DebuggerNonUserCode()] // with "Just My Code" enabled this lets the debugger break at the origin of the exception

public static void tf_with<T>(T py, Action<T> action) where T : ITensorFlowObject

{

try

{

py.__enter__();

action(py);

}

finally

{

py.__exit__();

py.Dispose();

}

[DebuggerStepThrough]

[DebuggerNonUserCode()] // with "Just My Code" enabled this lets the debugger break at the origin of the exception

public static TOut tf_with<TIn, TOut>(TIn py, Func<TIn, TOut> action) where TIn : ITensorFlowObject

{

try

{

py.__enter__();

return action(py);

}

finally

{

py.__exit__();

py.Dispose();

}

public static float time()

{

return (float)(DateTime.UtcNow - new DateTime(1970, 1, 1)).TotalSeconds;

}

public static IEnumerable<(T, T)> zip<T>(NDArray t1, NDArray t2)

where T : unmanaged

{

var a = t1.AsIterator<T>();

var b = t2.AsIterator<T>();

while (a.HasNext() && b.HasNext())

yield return (a.MoveNext(), b.MoveNext());

}

public static IEnumerable<(T1, T2)> zip<T1, T2>(IList<T1> t1, IList<T2> t2)

{

for (int i = 0; i < t1.Count; i++)

yield return (t1[i], t2[i]);

}

public static IEnumerable<(T1, T2, T3)> zip<T1, T2, T3>(IList<T1> t1, IList<T2> t2, IList<T3> t3)

{

for (int i = 0; i < t1.Count; i++)

yield return (t1[i], t2[i], t3[i]);

}

public static IEnumerable<(T1, T2)> zip<T1, T2>(NDArray t1, NDArray t2)

where T1: unmanaged

where T2: unmanaged

{

var a = t1.AsIterator<T1>();

var b = t2.AsIterator<T2>();

while(a.HasNext() && b.HasNext())

yield return (a.MoveNext(), b.MoveNext());

}

public static IEnumerable<(T1, T2)> zip<T1, T2>(IEnumerable<T1> e1, IEnumerable<T2> e2)

{

return e1.Zip(e2, (t1, t2) => (t1, t2));

}

public static IEnumerable<(TKey, TValue)> enumerate<TKey, TValue>(Dictionary<TKey, TValue> values)

{

foreach (var item in values)

yield return (item.Key, item.Value);

}

public static IEnumerable<(TKey, TValue)> enumerate<TKey, TValue>(KeyValuePair<TKey, TValue>[] values)

{

var len = values.Length;

for (var i = 0; i < len; i++)

{

var item = values[i];

yield return (item.Key, item.Value);

}

public static IEnumerable<(int, T)> enumerate<T>(IList<T> values)

{

var len = values.Count;

for (int i = 0; i < len; i++)

yield return (i, values[i]);

}

[DebuggerStepThrough]

public static Dictionary<string, object> ConvertToDict(object dyn)

{

var dictionary = new Dictionary<string, object>();

foreach (PropertyDescriptor propertyDescriptor in TypeDescriptor.GetProperties(dyn))

{

object obj = propertyDescriptor.GetValue(dyn);

string name = propertyDescriptor.Name;

dictionary.Add(name, obj);

}

return dictionary;

}

public static bool all(IEnumerable enumerable)

{

foreach (var e1 in enumerable)

{

if (!Convert.ToBoolean(e1))

return false;

}

return true;

}

public static bool any(IEnumerable enumerable)

{

foreach (var e1 in enumerable)

{

if (Convert.ToBoolean(e1))

return true;

}

return false;

}

public static double sum(IEnumerable enumerable)

{

var typedef = new Type[] { typeof(double), typeof(int), typeof(float) };

var sum = 0.0d;

foreach (var e1 in enumerable)

{

if (!typedef.Contains(e1.GetType()))

throw new Exception("Numeric array expected");

sum += (double)e1;

}

return sum;

}

public static float sum(IEnumerable<float> enumerable)

=> enumerable.Sum();

public static int sum(IEnumerable<int> enumerable)

=> enumerable.Sum();

public static double sum<TKey, TValue>(Dictionary<TKey, TValue> values)

{

return sum(values.Keys);

}

public static IEnumerable<double> slice(double start, double end, double step = 1)

{

for (double i = start; i < end; i += step)

yield return i;

}

public static IEnumerable<float> slice(float start, float end, float step = 1)

{

for (float i = start; i < end; i += step)

yield return i;

}

public static IEnumerable<int> slice(int start, int end, int step = 1)

{

for (int i = start; i < end; i += step)

yield return i;

}

public static IEnumerable<int> slice(int range)

{

for (int i = 0; i < range; i++)

yield return i;

}

public static bool hasattr(object obj, string key)

{

var __type__ = (obj).GetType();

var __member__ = __type__.GetMembers();

var __memberobject__ = __type__.GetMember(key);

return (__memberobject__.Length > 0) ? true : false;

}

public static IEnumerable TupleToEnumerable(object tuple)

{

Type t = tuple.GetType();

if (t.IsGenericType && (t.FullName.StartsWith("System.Tuple") || t.FullName.StartsWith("System.ValueTuple")))

{

var flds = t.GetFields();

for (int i = 0; i < flds.Length; i++)

{

yield return flds[i].GetValue(tuple);

}

} else

{

throw new System.Exception("Expected Tuple.");

}

public static bool isinstance(object Item1, Type Item2)

{

return Item1.GetType() == Item2;

}

public static bool isinstance(object Item1, object tuple)

{

foreach (var t in TupleToEnumerable(tuple))

if (isinstance(Item1, (Type) t))

return true;

return false;

}

TensorFlow.NET/src/TensorFlowNET.Core/Binding.Util.cs at master · BOYMMM/TensorFlow.NET · GitHub

Expand file tree

Breadcrumbs

Binding.Util.cs

Latest commit

History

Breadcrumbs

Binding.Util.cs

File metadata and controls