1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
/*
* Protocol Buffers - Google's data interchange format
* Copyright 2014 Google Inc. All rights reserved.
* https://developers.google.com/protocol-buffers/
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.google.protobuf.jruby;
import com.google.protobuf.DescriptorProtos;
import com.google.protobuf.Descriptors;
import org.jruby.Ruby;
import org.jruby.RubyClass;
import org.jruby.RubyModule;
import org.jruby.RubyObject;
import org.jruby.RubyNumeric;
import org.jruby.anno.JRubyClass;
import org.jruby.anno.JRubyMethod;
import org.jruby.runtime.Block;
import org.jruby.runtime.ObjectAllocator;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.builtin.IRubyObject;
@JRubyClass(name = "EnumDescriptor", include = "Enumerable")
public class RubyEnumDescriptor extends RubyObject {
public static void createRubyEnumDescriptor(Ruby runtime) {
RubyModule mProtobuf = runtime.getClassFromPath("Google::Protobuf");
RubyClass cEnumDescriptor = mProtobuf.defineClassUnder("EnumDescriptor", runtime.getObject(), new ObjectAllocator() {
@Override
public IRubyObject allocate(Ruby runtime, RubyClass klazz) {
return new RubyEnumDescriptor(runtime, klazz);
}
});
cEnumDescriptor.includeModule(runtime.getEnumerable());
cEnumDescriptor.defineAnnotatedMethods(RubyEnumDescriptor.class);
}
public RubyEnumDescriptor(Ruby runtime, RubyClass klazz) {
super(runtime, klazz);
}
/*
* call-seq:
* EnumDescriptor.new => enum_descriptor
*
* Creates a new, empty, enum descriptor. Must be added to a pool before the
* enum type can be used. The enum type may only be modified prior to adding to
* a pool.
*/
@JRubyMethod
public IRubyObject initialize(ThreadContext context) {
this.builder = DescriptorProtos.EnumDescriptorProto.newBuilder();
return this;
}
/*
* call-seq:
* EnumDescriptor.name => name
*
* Returns the name of this enum type.
*/
@JRubyMethod(name = "name")
public IRubyObject getName(ThreadContext context) {
return this.name;
}
/*
* call-seq:
* EnumDescriptor.name = name
*
* Sets the name of this enum type. Cannot be called if the enum type has
* already been added to a pool.
*/
@JRubyMethod(name = "name=")
public IRubyObject setName(ThreadContext context, IRubyObject name) {
this.name = name;
this.builder.setName(Utils.escapeIdentifier(name.asJavaString()));
return context.runtime.getNil();
}
/*
* call-seq:
* EnumDescriptor.add_value(key, value)
*
* Adds a new key => value mapping to this enum type. Key must be given as a
* Ruby symbol. Cannot be called if the enum type has already been added to a
* pool. Will raise an exception if the key or value is already in use.
*/
@JRubyMethod(name = "add_value")
public IRubyObject addValue(ThreadContext context, IRubyObject name, IRubyObject number) {
DescriptorProtos.EnumValueDescriptorProto.Builder valueBuilder = DescriptorProtos.EnumValueDescriptorProto.newBuilder();
valueBuilder.setName(name.asJavaString());
valueBuilder.setNumber(RubyNumeric.num2int(number));
this.builder.addValue(valueBuilder);
return context.runtime.getNil();
}
/*
* call-seq:
* EnumDescriptor.each(&block)
*
* Iterates over key => value mappings in this enum's definition, yielding to
* the block with (key, value) arguments for each one.
*/
@JRubyMethod
public IRubyObject each(ThreadContext context, Block block) {
Ruby runtime = context.runtime;
for (Descriptors.EnumValueDescriptor enumValueDescriptor : descriptor.getValues()) {
block.yield(context, runtime.newArray(runtime.newSymbol(enumValueDescriptor.getName()),
runtime.newFixnum(enumValueDescriptor.getNumber())));
}
return runtime.getNil();
}
/*
* call-seq:
* EnumDescriptor.enummodule => module
*
* Returns the Ruby module corresponding to this enum type. Cannot be called
* until the enum descriptor has been added to a pool.
*/
@JRubyMethod
public IRubyObject enummodule(ThreadContext context) {
if (this.klazz == null) {
this.klazz = buildModuleFromDescriptor(context);
}
return this.klazz;
}
public void setDescriptor(Descriptors.EnumDescriptor descriptor) {
this.descriptor = descriptor;
}
public Descriptors.EnumDescriptor getDescriptor() {
return this.descriptor;
}
public DescriptorProtos.EnumDescriptorProto.Builder getBuilder() {
return this.builder;
}
private RubyModule buildModuleFromDescriptor(ThreadContext context) {
Ruby runtime = context.runtime;
Utils.checkNameAvailability(context, name.asJavaString());
RubyModule enumModule = RubyModule.newModule(runtime);
for (Descriptors.EnumValueDescriptor value : descriptor.getValues()) {
enumModule.defineConstant(value.getName(), runtime.newFixnum(value.getNumber()));
}
enumModule.instance_variable_set(runtime.newString(Utils.DESCRIPTOR_INSTANCE_VAR), this);
enumModule.defineAnnotatedMethods(RubyEnum.class);
return enumModule;
}
private IRubyObject name;
private RubyModule klazz;
private Descriptors.EnumDescriptor descriptor;
private DescriptorProtos.EnumDescriptorProto.Builder builder;
}
|
