# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved. # # 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. from paddle.utils import gast from paddle.fluid.dygraph.dygraph_to_static.static_analysis import ( AstNodeWrapper, ) from paddle.fluid.dygraph.dygraph_to_static.utils import ast_to_source_code from .base_transformer import ( BaseTransformer, ) __all__ = ['AssertTransformer'] class AssertTransformer(BaseTransformer): """ A class transforms python assert to convert_assert. """ def __init__(self, wrapper_root): assert isinstance( wrapper_root, AstNodeWrapper ), "Input non-AstNodeWrapper node for the initialization of AssertTransformer." self.wrapper_root = wrapper_root self.root = wrapper_root.node def transform(self): self.visit(self.root) def visit_Assert(self, node): convert_assert_node = ( gast.parse( '_jst.Assert({test}, {msg})'.format( test=ast_to_source_code(node.test), msg=ast_to_source_code(node.msg) if node.msg else "", ) ) .body[0] .value ) return gast.Expr(value=convert_assert_node)