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1 // Protocol Buffers - Google's data interchange format | |
2 // Copyright 2008 Google Inc. All rights reserved. | |
3 // http://code.google.com/p/protobuf/ | |
4 // | |
5 // Redistribution and use in source and binary forms, with or without | |
6 // modification, are permitted provided that the following conditions are | |
7 // met: | |
8 // | |
9 // * Redistributions of source code must retain the above copyright | |
10 // notice, this list of conditions and the following disclaimer. | |
11 // * Redistributions in binary form must reproduce the above | |
12 // copyright notice, this list of conditions and the following disclaimer | |
13 // in the documentation and/or other materials provided with the | |
14 // distribution. | |
15 // * Neither the name of Google Inc. nor the names of its | |
16 // contributors may be used to endorse or promote products derived from | |
17 // this software without specific prior written permission. | |
18 // | |
19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
20 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
22 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
23 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
24 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
25 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
26 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
27 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
28 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
29 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
30 | |
31 // Author: kenton@google.com (Kenton Varda) | |
32 // Based on original Protocol Buffers design by | |
33 // Sanjay Ghemawat, Jeff Dean, and others. | |
34 | |
35 #include <google/protobuf/compiler/java/java_field.h> | |
36 #include <google/protobuf/compiler/java/java_helpers.h> | |
37 #include <google/protobuf/compiler/java/java_primitive_field.h> | |
38 #include <google/protobuf/compiler/java/java_enum_field.h> | |
39 #include <google/protobuf/compiler/java/java_message_field.h> | |
40 #include <google/protobuf/compiler/java/java_string_field.h> | |
41 #include <google/protobuf/stubs/common.h> | |
42 | |
43 namespace google { | |
44 namespace protobuf { | |
45 namespace compiler { | |
46 namespace java { | |
47 | |
48 FieldGenerator::~FieldGenerator() {} | |
49 | |
50 void FieldGenerator::GenerateParsingCodeFromPacked(io::Printer* printer) const { | |
51 // Reaching here indicates a bug. Cases are: | |
52 // - This FieldGenerator should support packing, but this method should be | |
53 // overridden. | |
54 // - This FieldGenerator doesn't support packing, and this method should | |
55 // never have been called. | |
56 GOOGLE_LOG(FATAL) << "GenerateParsingCodeFromPacked() " | |
57 << "called on field generator that does not support packing."; | |
58 } | |
59 | |
60 FieldGeneratorMap::FieldGeneratorMap(const Descriptor* descriptor) | |
61 : descriptor_(descriptor), | |
62 field_generators_( | |
63 new scoped_ptr<FieldGenerator>[descriptor->field_count()]), | |
64 extension_generators_( | |
65 new scoped_ptr<FieldGenerator>[descriptor->extension_count()]) { | |
66 | |
67 // Construct all the FieldGenerators and assign them bit indices for their | |
68 // bit fields. | |
69 int messageBitIndex = 0; | |
70 int builderBitIndex = 0; | |
71 for (int i = 0; i < descriptor->field_count(); i++) { | |
72 FieldGenerator* generator = MakeGenerator(descriptor->field(i), | |
73 messageBitIndex, builderBitIndex); | |
74 field_generators_[i].reset(generator); | |
75 messageBitIndex += generator->GetNumBitsForMessage(); | |
76 builderBitIndex += generator->GetNumBitsForBuilder(); | |
77 } | |
78 for (int i = 0; i < descriptor->extension_count(); i++) { | |
79 FieldGenerator* generator = MakeGenerator(descriptor->extension(i), | |
80 messageBitIndex, builderBitIndex); | |
81 extension_generators_[i].reset(generator); | |
82 messageBitIndex += generator->GetNumBitsForMessage(); | |
83 builderBitIndex += generator->GetNumBitsForBuilder(); | |
84 } | |
85 } | |
86 | |
87 FieldGenerator* FieldGeneratorMap::MakeGenerator( | |
88 const FieldDescriptor* field, int messageBitIndex, int builderBitIndex) { | |
89 if (field->is_repeated()) { | |
90 switch (GetJavaType(field)) { | |
91 case JAVATYPE_MESSAGE: | |
92 return new RepeatedMessageFieldGenerator( | |
93 field, messageBitIndex, builderBitIndex); | |
94 case JAVATYPE_ENUM: | |
95 return new RepeatedEnumFieldGenerator( | |
96 field, messageBitIndex, builderBitIndex); | |
97 case JAVATYPE_STRING: | |
98 return new RepeatedStringFieldGenerator( | |
99 field, messageBitIndex, builderBitIndex); | |
100 default: | |
101 return new RepeatedPrimitiveFieldGenerator( | |
102 field, messageBitIndex, builderBitIndex); | |
103 } | |
104 } else { | |
105 switch (GetJavaType(field)) { | |
106 case JAVATYPE_MESSAGE: | |
107 return new MessageFieldGenerator( | |
108 field, messageBitIndex, builderBitIndex); | |
109 case JAVATYPE_ENUM: | |
110 return new EnumFieldGenerator( | |
111 field, messageBitIndex, builderBitIndex); | |
112 case JAVATYPE_STRING: | |
113 return new StringFieldGenerator( | |
114 field, messageBitIndex, builderBitIndex); | |
115 default: | |
116 return new PrimitiveFieldGenerator( | |
117 field, messageBitIndex, builderBitIndex); | |
118 } | |
119 } | |
120 } | |
121 | |
122 FieldGeneratorMap::~FieldGeneratorMap() {} | |
123 | |
124 const FieldGenerator& FieldGeneratorMap::get( | |
125 const FieldDescriptor* field) const { | |
126 GOOGLE_CHECK_EQ(field->containing_type(), descriptor_); | |
127 return *field_generators_[field->index()]; | |
128 } | |
129 | |
130 const FieldGenerator& FieldGeneratorMap::get_extension(int index) const { | |
131 return *extension_generators_[index]; | |
132 } | |
133 | |
134 } // namespace java | |
135 } // namespace compiler | |
136 } // namespace protobuf | |
137 } // namespace google | |
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