Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.8/site-packages/tensorflow/python/autograph/converters/conditional_expressions.py: 62%

1# Copyright 2017 The TensorFlow Authors. All Rights Reserved. 

2# 

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

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

5# You may obtain a copy of the License at 

6# 

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

8# 

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

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

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

12# See the License for the specific language governing permissions and 

13# limitations under the License. 

14# ============================================================================== 

15"""Converts the ternary conditional operator.""" 

16 

17import gast 

18 

19from tensorflow.python.autograph.core import converter 

20from tensorflow.python.autograph.pyct import parser 

21from tensorflow.python.autograph.pyct import templates 

22 

23 

24class ConditionalExpressionTransformer(converter.Base): 

25 """Converts conditional expressions to functional form.""" 

26 

27 def visit_IfExp(self, node): 

28 template = ''' 

29 ag__.if_exp( 

30 test, 

31 lambda: true_expr, 

32 lambda: false_expr, 

33 expr_repr) 

34 ''' 

35 expr_repr = parser.unparse(node.test, include_encoding_marker=False).strip() 

36 return templates.replace_as_expression( 

37 template, 

38 test=node.test, 

39 true_expr=node.body, 

40 false_expr=node.orelse, 

41 expr_repr=gast.Constant(expr_repr, kind=None)) 

42 

43 

44def transform(node, ctx): 

45 node = ConditionalExpressionTransformer(ctx).visit(node) 

46 return node