1 // Protocol Buffers - Google's data interchange format
2 // Copyright 2008 Google Inc.  All rights reserved.
3 // https://developers.google.com/protocol-buffers/
4 //
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8 //
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30 
31 #ifndef GOOGLE_PROTOBUF_COMPILER_JAVA_CONTEXT_H__
32 #define GOOGLE_PROTOBUF_COMPILER_JAVA_CONTEXT_H__
33 
34 #include <map>
35 #include <memory>
36 #include <vector>
37 
38 #include <google/protobuf/stubs/common.h>
39 
40 namespace google {
41 namespace protobuf {
42   class FileDescriptor;
43   class FieldDescriptor;
44   class OneofDescriptor;
45   class Descriptor;
46   namespace compiler {
47     namespace java {
48       class ClassNameResolver;  // name_resolver.h
49     }
50   }
51 }  // namespace protobuf
52 
53 namespace protobuf {
54 namespace compiler {
55 namespace java {
56 
57 struct FieldGeneratorInfo;
58 struct OneofGeneratorInfo;
59 // A context object holds the information that is shared among all code
60 // generators.
61 class Context {
62  public:
63   explicit Context(const FileDescriptor* file);
64   ~Context();
65 
66   // Get the name resolver associated with this context. The resolver
67   // can be used to map descriptors to Java class names.
68   ClassNameResolver* GetNameResolver();
69 
70   // Get the FieldGeneratorInfo for a given field.
71   const FieldGeneratorInfo* GetFieldGeneratorInfo(
72       const FieldDescriptor* field) const;
73 
74   // Get the OneofGeneratorInfo for a given oneof.
75   const OneofGeneratorInfo* GetOneofGeneratorInfo(
76       const OneofDescriptor* oneof) const;
77 
78  private:
79   void InitializeFieldGeneratorInfo(const FileDescriptor* file);
80   void InitializeFieldGeneratorInfoForMessage(const Descriptor* message);
81   void InitializeFieldGeneratorInfoForFields(
82       const vector<const FieldDescriptor*>& fields);
83 
84   scoped_ptr<ClassNameResolver> name_resolver_;
85   map<const FieldDescriptor*, FieldGeneratorInfo> field_generator_info_map_;
86   map<const OneofDescriptor*, OneofGeneratorInfo> oneof_generator_info_map_;
87   GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(Context);
88 };
89 
90 }  // namespace java
91 }  // namespace compiler
92 }  // namespace protobuf
93 
94 }  // namespace google
95 #endif  // GOOGLE_PROTOBUF_COMPILER_JAVA_CONTEXT_H__
96