1 /*
2  * Licensed to the Apache Software Foundation (ASF) under one
3  * or more contributor license agreements.  See the NOTICE file
4  * distributed with this work for additional information
5  * regarding copyright ownership.  The ASF licenses this file
6  * to you under the Apache License, Version 2.0 (the
7  * "License"); you may not use this file except in compliance
8  * with the License.  You may obtain a copy of the License at
9  *
10  *     https://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  */
18 
19 #ifndef avro_Compiler_hh__
20 #define avro_Compiler_hh__
21 
22 #include "Config.hh"
23 #include <cstdint>
24 #include <istream>
25 
26 namespace avro {
27 
28 class AVRO_DECL InputStream;
29 
30 /// This class is used to implement an avro spec parser using a flex/bison
31 /// compiler.  In order for the lexer to be reentrant, this class provides a
32 /// lexer object for each parse.  The bison parser also uses this class to
33 /// build up an avro parse tree as the avro spec is parsed.
34 
35 class AVRO_DECL ValidSchema;
36 
37 /// Given a stream containing a JSON schema, compiles the schema to a
38 /// ValidSchema object.  Throws if the schema cannot be compiled to a valid
39 /// schema
40 
41 AVRO_DECL void compileJsonSchema(std::istream &is, ValidSchema &schema);
42 
43 /// Non-throwing version of compileJsonSchema.
44 ///
45 /// \return True if no error, false if error (with the error string set)
46 ///
47 
48 AVRO_DECL bool compileJsonSchema(std::istream &is, ValidSchema &schema,
49                                  std::string &error);
50 
51 AVRO_DECL ValidSchema compileJsonSchemaFromStream(InputStream &is);
52 
53 AVRO_DECL ValidSchema compileJsonSchemaFromMemory(const uint8_t *input, size_t len);
54 
55 AVRO_DECL ValidSchema compileJsonSchemaFromString(const char *input);
56 
57 AVRO_DECL ValidSchema compileJsonSchemaFromString(const std::string &input);
58 
59 AVRO_DECL ValidSchema compileJsonSchemaFromFile(const char *filename);
60 
61 } // namespace avro
62 
63 #endif
64