弄Rpc有一段时间了，从定义IDL规则，自动生成存根代码给应用使用，相继做了c++，java,python,actionscript四个版本，且都都能互相调用，协议是自定义的二进制格式。 公司的项目要求我从事android的开发，编写一些小的应用，要与平台服务器通信。 与服务器的通信采用xml交换，之前做的二进制编码便不能使用。 不想很弱智的去重复的编解码xml消息格式，去编写socket通信代码，工作量和繁琐是自己不喜欢的，那只能让自己的rpc去支持xml格式。 这种支持我称之为半人工的，因为xml格式的tag定义必须在idl中出现 idl定义 1 struct Ts_heartbeat_p_User_t{
2 string id;
3 };
4 //心跳
5
6 struct Ts_gps_p_GPS_t{
7 float lon;
8 float lat;
9 float speed;
10 float direction;
11 int time;
12 };
13
14 struct Ts_gps_p_Properties_t{
15 string senderid;
16 string target_type;
17 string users;
18 string groups;
19 };
20
21 struct Ts_verify_r_User_t{
22 string id;
23 };
24
25 struct Ts_verify_r_Group_t{
26 string id;
27 string name;
28 string type;
29 };
30
31 sequence<Ts_verify_r_Group_t> Ts_verify_r_Groups_t;
32
33 struct Ts_verify_r_Result_t{
34 int code;
35 string msg;
36 Ts_verify_r_User_t user;
37 Ts_verify_r_Groups_t groups;
38 };
39
40
41 struct Ts_verify_p_User_t{
42 string token;
43 };
44
45 interface Ts{
46 void heartbeat(Ts_heartbeat_p_User_t p);
47 void gps(Ts_gps_p_GPS_t p,Ts_gps_p_Properties_t props);
48 Ts_verify_r_Result_t verify(Ts_verify_p_User_t p);
49 };
50 idl定义了一个Ts的接口，内部有三个方法：heartbeat(),gps(),verify() 这些方法在服务器端已经实现，其他的struct类型定义了接口调用使用的参数和返回值类型 ，注意他们的格式： struct Ts_verify_p_User_t{
string token;
};
这个类型将被解释成 <User token="..."/>
sequence<Ts_verify_r_Group_t> Ts_verify_r_Groups_t; 将被解释成 <Groups> <Group id="" name="" type=""/> ... </Groups> 努力不是白费的，python+ply实现了idl的语法解析，并生成java框架代码，并编写通信代码完成Rpc构造。 必须要注意Android不允许任何阻塞UI线程的操作，所以要实现通信必须在自己的线程中进行，我提供的Rpc调用模式只能是 oneway(单向调用) ,async(异步调用) 实例： 1 package test;
2
3
4 import sns_mobile.*;
5
6 import java.util.*;
7 import tce.*;
8
9 import java.nio.*;
10 import java.io.*;
11
12 public class SnsTestMain {
13 TsProxy tsprx = null;
14 String token="dBmPPfxxohFmXjx4SUv46BffzmeYitbjmzT2mRHLttGaau4kiTvKEOpW2BJE0IGLEBFZ4lE/KrMKl7qE6pNmaBUfbixMrPEG/1Xfsp36P4lmZHhQfkVgyGWa8yi5g/swbMpg8h2ybC2dQShR18VFtQkXGpEUg8VfV1Fb0UllN6j/umVaBBQX7lgqcf3zkIaGcOpvS7FB6snC/PWU1crCf2gHrgnOmZgIaKmBF14dkJsSoozRGKiIpiCjJ7mRZ05og67ZmFfOaH2EnaCo3G1pmQcez7MOqCtIvNpGo5yivmZ6GyMA2eSIlFmD2Z7ysCrxzAt92UUCNwb9mkKZrUthjA==";
15
16 double 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2304.134800,437007.070800,112304.206800,437007.286800,112304.304000,437007.567600,112304.448000,437007.909600,112304.613600,437008.230000,112304.757600,437008.518000,112304.880000,437008.806000,112304.934000,437009.076000,112304.944800,437009.310000,112304.880000,437009.547600,112304.818800,437009.716800,112304.746800,437009.868000,112304.631600,437010.004800,112304.433600,437010.130800,112304.235600,437010.202800,112304.080800,437010.282000,112303.918800,437010.336000,112303.767600,437010.390000,112303.638000,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800,437010.444000,112303.504800};
17 public int ii=100;
18
19
20 Ts_verify_r_Result_t user_ok = null;
21
22 Terminal termthis = null;
23 RpcCommAdapter adapter = null;
24 Thread thread;
25 SnsTestMain(){
26
27
28 thread = new Thread(new Runnable(){
29 public void run(){
30 try{
31 while(true){
32 Thread.sleep(2000);
33 if(tsprx!=null){
34 heartbeat();
35 send_gps();
36 }
37
38 }
39 }catch(Exception e){
40 System.out.println(e.toString());
41 System.out.println("thread exiting ");
42 }
43 }
44
45 });
46 //thread.start();
47
48 initServant();
49 }
50
51 void initServant(){
52 adapter = RpcCommunicator.instance().createAdapter("termimal", RpcConsts.MSG_ENCODE_XML);
53 termthis = new Terminal(){
54 @Override
55 public void hello(RpcContext ctx){
56
57 }
58 };
59 adapter.addServant(termthis);
60 }
61
62 void heartbeat(){
63 Ts_heartbeat_p_User_t user = new Ts_heartbeat_p_User_t();
64 user.id = user_ok.user.id;
65 tsprx.heartbeat_oneway(user);
66 }
67
68
69 void send_gps(){
70 Ts_gps_p_GPS_t gps = new Ts_gps_p_GPS_t();
71 gps.lon= Float.valueOf((float)121.2004);
72 gps.lat= Float.valueOf((float)31.1234);
73 gps.speed = (float)0.0;
74 gps.direction = (float)35.5;
75 gps.time = new Date().getSeconds();
76 Ts_gps_p_Properties_t props = new Ts_gps_p_Properties_t();
77 props.senderid = user_ok.user.id;
78 props.target_type="2";
79 props.users="1001,1002";
80 props.groups="2001,2001";
81 tsprx.gps_oneway(gps, props);
82
83 }
84
85 public Tc_redirect_r_Result_t test_redirect(){
86
87 TcProxy tc = TcProxy.createWithXML("172.26.181.193", 8881); //8889
88 Tc_redirect_p_User_t user = new Tc_redirect_p_User_t();
89 user.token = token;
90 Tc_redirect_r_Result_t r = null;
91 try{
92 tc.redirect_async(user, new Tc_AsyncCallBack(){
93 @Override
94 public void redirect(Tc_redirect_r_Result_t result,RpcProxyBase proxy){
95 System.out.println(String.format("%s %d", result.tc_srv_ip,result.tc_srv_port));
96 //到这里重定向调度okay
97 test_verify(result.tc_srv_ip,result.tc_srv_port);
98 }
99 @Override
100 protected void onError(String name,String msg,RpcProxyBase proxy){
101 System.out.println(String.format("error: %s msg:%s",name,msg));
102 }
103 });
104 //tc.destroy();
105 }catch(Exception e){
106 System.out.println(e.toString());
107 return null;
108 }
109 return r;
110 }
111
112 public Tc_redirect_r_Result_t test_verify(String host,int port){
113 tsprx = TsProxy.createWithXML(host, port);
114 Ts_verify_p_User_t user = new Ts_verify_p_User_t();
115 user.token = token;
116 try{
117 tsprx.verify_async(user, new Ts_AsyncCallBack(){
118 @Override
119 public void verify(Ts_verify_r_Result_t result,RpcProxyBase proxy){
120 System.out.println(String.format("verify back() msg:%s code:%d gourps.length:%d", result.msg,result.code,result.groups.size()));
121 user_ok = result;
122 tsprx.conn.attachAdapter(adapter);
123 send_gps();
124 }
125 });
126 //ts.destroy();
127 }catch(Exception e){
128 System.out.println(e.toString());
129 return null;
130 }
131 return null;
132 }
133
134
135 public static void test(){
136 SnsTestMain sns = new SnsTestMain();
137 sns.test_redirect();
138 }
139
140 public static void mainxxx(String[] args) {
141 SnsTestMain.test();
142
143 }
144
145 }
146 IDL 语法树结构 python+ ply lexical.py 1 import sys
2
3 language = 'py'
4 arch = '32'
5
6 class SyntexTreeNode:
7 def __init__(self,name):
8 self.name = None
9
10 class Container:
11 def __init__(self,name=''):
12 # SyntexTreeNode.__init__(self,name)
13 self.children={}
14 self.list=[]
15
16 def addChild(self,c):
17 #self.children.append(c)
18 self.children[c.getName()] = c
19 self.list.append(c)
20
21 def createStruct(self,st):
22 pass
23
24 def createInterface(self,ifc):
25 pass
26
27 def createSequence(self,seq):
28 pass
29
30 def createDictionary(self,dict):
31 pass
32
33 def createEnumeration(self,enm):
34 pass
35
36 def createUnit(self,unit):
37 pass
38
39
40
41
42
43 class Contained:
44 def __init__(self,container=None):
45 self.container =container
46
47 class TypeId:
48 def __init__(self,type,id): #变量定义 type id;
49 self.type = type # int name , <int> is type, <name> is id
50 self.id = id
51
52
53 class TypeBase:
54 def __init__(self,name):
55 self.name = name
56 self.idx = 0 #索引，用于数据序列化时类型识别
57 #self.type = name
58
59 def getName(self):
60 return self.name
61
62 def getTypeDefaultValue(self):
63 if language == 'py':
64 return '%s()'%self.name
65 if language =='as':
66 return 'new %s()'%self.name
67 if language =='cpp':
68 return '%s()'%self.name
69 if language =='java':
70 return 'new %s()'%self.name
71
72 def getMappingTypeName(self):
73 r = self.name
74
75 return r
76
77 class DataMember(Contained):
78 def __init__(self,d,container): # d - type_id
79 Contained.__init__(self,container)
80 self.d = d
81 self.name = d.id
82 self.type = d.type
83
84 class Sequence(Contained,TypeBase):
85 def __init__(self,name,type):
86 TypeBase.__init__(self,name)
87 self.type = type # sequence<type> name;
88 self.valuetype = type
89
90 def getTypeDefaultValue(self):
91 if language == 'py':
92 return '[]'
93 if language == 'as':
94 return 'new Array()'
95 if language =='cpp':
96 return 'std::vector< %s >()'%self.type.getMappingTypeName()
97 if language =='java':
98 return 'new Vector<%s>()'%self.type.getMappingTypeName()
99
100 def getMappingTypeName(self):
101 r = ''
102 if language == 'as':
103 r = 'Array'
104
105 if language =='cpp':
106 return 'std::vector< %s >'%self.type.getMappingTypeName()
107 if language =='java':
108 return 'Vector<%s>'%self.type.getMappingTypeName()
109
110 return r
111
112 class Dictionary(Contained,TypeBase):
113 def __init__(self,name,first,second):
114 TypeBase.__init__(self,name)
115 self.first = first
116 self.second = second
117
118 def getTypeDefaultValue(self):
119 if language =='py':
120 return '{}'
121 if language == 'as':
122 return 'new HashMap()'
123
124 if language == 'cpp':
125 #return 'boost::shared_ptr< std::map<%s,%s> >( new std::map<%s,%s>()) '%(self.first.name,self.second.name,self.first.name,self.second.name)
126 # return '%s::hash_type()'%self.name
127 return 'std::map< %s,%s >()'%(self.first.getMappingTypeName(),self.second.getMappingTypeName())
128 if language =='java':
129 return 'new Hashtable<%s,%s>()'%(self.first.getMappingTypeName(),
130 self.second.getMappingTypeName()
131 )
132
133
134 def getMappingTypeName(self):
135 r = ''
136 if language == 'as':
137 r = 'HashMap'
138 if language =='cpp':
139 # return 'boost::shared_ptr< std::map<%s,%s> >'%(self.first.name,self.second.name)
140 # return '%s::hash_type'%(self.name)
141 r = 'std::map< %s,%s >'%(self.first.getMappingTypeName(),self.second.getMappingTypeName() )
142
143 if language == 'java':
144 r = 'Hashtable< %s,%s >'%(self.first.getMappingTypeName(),self.second.getMappingTypeName() )
145
146 return r
147
148 class Enumeration(Contained,TypeBase):
149 def __init__(self,name):
150 TypeBase.__init__(name)
151
152 class OperateMember(Contained):
153 def __init__(self,name,type,params):
154 self.name = name
155 self.type = type # callreturn [ type foo(params) ]
156 self.params = params
157 pass
158
159 class Struct(Container,Contained,TypeBase):
160 def __init__(self,name):
161 Container.__init__(self)
162 Contained.__init__(self)
163 TypeBase.__init__(self,name)
164
165 def createDataMember(self,dm):
166 if self.children.has_key(dm.id):
167 return False
168 e = DataMember(dm,self)
169 self.children[dm.id] = e
170 self.list.append(e)
171 return True
172
173
174
175 class Interface(Container,Contained,TypeBase):
176 def __init__(self,name):
177 Container.__init__(self)
178 Contained.__init__(self)
179 TypeBase.__init__(self,name)
180
181
182
183 def createOperateMember(self,opm):
184
185 if self.children.has_key(opm.name):
186 return False
187 self.children[opm.name] = opm
188 self.list.append(opm)
189
190 return True
191
192 class Unit(Container):
193 def __init__(self):
194 Container.__init__(self)
195 pass
196
197
198 class Builtin(TypeBase):
199 def __init__(self,type):
200 TypeBase.__init__(self,type)
201 self.type = type
202
203 tables =[
204 'byte',
205 'bool',
206 'short',
207 'int',
208 'long',
209 'float',
210 'double',
211 'string',
212 ]
213
214 @staticmethod
215 def isBuiltinType(type):
216 return Builtin.tables.count(type)
217
218 def getTypeDefaultValue(self):
219 r = 'None'
220 type = self.type
221 if type in ('byte','short','int','long'):
222 r = '0'
223 if language == 'java':
224 if type == 'byte':
225 #r= '%s.valueOf( (byte)0)'%self.getMappingTypeName()
226 r = '0'
227 else:
228 r = '%s.valueOf(0)'%self.getMappingTypeName()
229
230 elif type in ('float','double'):
231 r = '0.0'
232 if language == 'java':
233 r = '%s.valueOf(0)'%self.getMappingTypeName()
234
235 elif type in ('bool'):
236 r = 'False'
237 if language in ('as','cpp'):
238 r = 'false'
239 # if language == 'cpp':
240 # r = 'false'
241 if language == 'java':
242 r = '%s.valueOf(false)'%self.getMappingTypeName()
243
244 elif type in ('string'):
245 r = "''"
246 if language in ('as','cpp','java'):
247 r ="\"\""
248 # if language =='cpp':
249 # r = "\"\""
250
251 return r
252
253 def getMappingTypeName(self):
254 r = '-^|^*'*5
255
256 if language == 'as':
257 type = self.type
258 if type in ('byte',) : #'bool'):
259 r ='uint'
260 if type in ('bool',):
261 r = 'Boolean'
262 if type in ('short','int'):
263 r = 'int'
264 elif type in ('float','long','double'):
265 r = 'Number'
266 elif type in ('string'):
267 r = "String"
268 elif type in ('void'):
269 r ='void'
270
271 if language == 'cpp':
272 type = self.type
273
274 if type in ('byte',) : #'bool'):
275 r ='unsigned char'
276 if type in ('bool',):
277 r = 'bool'
278 if type in ('short',):
279 r ='short'
280 if type in ('int',):
281 r = 'int'
282 elif type in ('float',):
283 r = type
284 elif type in ('long',):
285 r = type
286 if arch =='32':
287 r = 'long long'
288 elif type in ('double',):
289 r = type
290 elif type in ('string'):
291 r = "std::string"
292 elif type in ('void'):
293 r ='void'
294
295 if language == 'java':
296 type = self.type
297
298 if type in ('byte',) : #'bool'):
299 r ='Byte'
300 if type in ('bool',):
301 r = 'Boolean'
302 if type in ('short',):
303 r ='Short'
304 if type in ('int',):
305 r = 'Integer'
306 elif type in ('float',):
307 r = 'Float'
308 elif type in ('long',):
309 r = 'Long'
310
311 elif type in ('double',):
312 r = 'Double'
313 elif type in ('string'):
314 r = "String"
315 elif type in ('void'):
316 r ='void'
317
318 return r
319
320 @staticmethod
321 def id(name):
322 pass
323
324 @staticmethod
325 def str(id_):
326 pass
327
328 types_def={}
329 kwds=['struct',
330 'interface',
331 'sequence',
332 'dictionary',
333 'exception',
334 'void'
335 ]
336
337 def getTypeDef(type):
338 t = types_def.get(type,None)
339 return t
340
341 #检测变量名称是否合法
342 def checkVariantName(name,all=True):
343 if kwds.count(name):
344 return False
345 if all:
346 if getTypeDef(name):
347 return False
348 return True
349
350 def initBuiltinTypes():
351 for t in Builtin.tables:
352 types_def[t] = Builtin(t)
353
354 types_def['void'] = Builtin('void')
355
356 initBuiltinTypes()
357
358 unit=None 继续贴 语法代码 grammar.py 1 #--coding:utf-8--
2
3
4 #scott shanghai china
5 # qq:24509826 msn: socketref@hotmail.com
6 #
7
8 import sys
9
10
11
12 if ".." not in sys.path: sys.path.insert(0,"..")
13
14 import os,sys,os.path,struct,time,traceback,string
15
16 import ply.lex as lex
17 import ply.yacc as yacc
18
19 from lexparser import *
20 import lexparser as myparser
21
22 '''
23 默认是SLR，我们也可以通过参数指定为 LALR(
24
25 idl
26 interface定义 函数参数保留名称： d,idx,m
27 '''
28
29
30 tokens=(
31 'IDENTIFIER','STRUCT','NUMBER','INTERFACE',
32 'SEQUENCE','DICTIONARY','EXCEPTION','COMMENTLINE',
33 # 'VOID',
34
35 )
36
37 def t_COMMENTLINE(t):
38 '//.*\n'
39
40 def t_SEQUENCE(t):
41 'sequence'
42 return t
43
44 def t_DICTIONARY(t):
45 'dictionary'
46 return t
47
48
49 def t_STRUCT(t):
50 'struct'
51 return t
52
53
54 def t_INTERFACE(t):
55 'interface'
56 return t
57
58 #def t_VOID(t):
59 # 'void'
60 # return t
61
62 def t_IDENTIFIER(t):
63 '[A-Za-z_][A-Za-z0-9_]*'
64 return t
65
66 t_NUMBER=r'\d+([uU]|[lL]|[uU][lL]|[lL][uU])?'
67
68 t_ignore =" \t"
69
70 def t_newline(t):
71 r'\n+'
72 t.lexer.lineno += 1 #int(t.value) #.count("\n")
73
74
75 def t_error(t):
76 print("Illegal character '%s'" % t.value[0])
77 t.lexer.skip(1)
78
79 literals = [ '{','}',';','(',')','<','>',',' ]
80
81 # Build the lexer
82 lexer = lex.lex()
83
84 #literals = [ ':',',','(',')' ]
85
86
87
88 #lexer.input(data)
89
90 #while 1:
91 # tok = lexer.token()
92 # if not tok: break
93 #print tok.type,tok.value
94 #sys.exit()
95
96
97 def p_start(t):
98 '''start : definations
99 '''
100
101 defs = t[1]
102 unit = Unit()
103
104 defs.reverse()
105
106 # print defs
107 for d in defs:
108 unit.addChild( d )
109
110
111 t[0] = unit
112
113 #t[0] = t[1]
114 #print t[0]
115
116 def p_definations(t):
117 '''definations : defination '''
118
119 t[0] = [t[1],]
120
121 def p_definations_2(t):
122 '''definations : defination definations '''
123 t[2].append(t[1])
124 t[0]= t[2]
125
126 def p_defination(t):
127 ''' defination : struct_def ';'
128 | interface_def ';'
129 | sequence_def ';'
130 | dictionary_def ';'
131 |
132 '''
133 t[0]=t[1]
134
135
136 def p_sequence_def(t):
137 '''
138 sequence_def : SEQUENCE '<' type '>' IDENTIFIER
139 '''
140 # print 'sequence..',t[3]
141 name = t[5]
142
143 if not checkVariantName(name,False):
144 print 'error: sequence<%s>.%s illegal!'%(t[3],name)
145 sys.exit()
146
147 if getTypeDef(name):
148 print 'error: line %s sequence (%s) has existed!'%(t.lineno(1),name)
149 sys.exit() #sequence的类型名存在
150
151 type_ = t[3]
152 # if not getTypeDef(type_):
153 # print 'error: sequence %s <%s> not defined!'%(name,type_)
154 # sys.exit()
155 # print 'xxx.',name,type_
156
157 seq = Sequence(name,type_)
158 types_def[name] = seq
159 t[0] = seq
160
161 def p_dictionary_def(t):
162 '''
163 dictionary_def : DICTIONARY '<' type ',' type '>' IDENTIFIER
164 '''
165 first = t[3]
166 second = t[5]
167 name = t[7]
168 # print first,second,name
169
170 if not checkVariantName(name,False):
171 print 'error: dictionary < %s > illegal!'%(name)
172 sys.exit()
173
174 if getTypeDef(name):
175 print 'error: line %s dictionary type (%s) has existed!'%(t.lineno(1),name)
176 sys.exit() #sequence的类型名存在
177
178
179 # if not getTypeDef(first):
180 # print 'error: dictionary %s.first <%s> not defined!'%(name,first)
181 # sys.exit()
182 #
183 # if not getTypeDef(second):
184 # print 'error: dictionary %s.second <%s> not defined!'%(name,second)
185 # sys.exit()
186
187 dict = Dictionary(name,first,second)
188 types_def[name] = dict
189 t[0] = dict
190
191 def p_interface_def(t):
192 '''
193 interface_def : INTERFACE IDENTIFIER '{' operatemembers '}'
194 '''
195 # print t[1],t[2]
196 id = t[2]
197 type_ = getTypeDef(id)
198 if type_:
199 print 'error: interface name(%s) has existed!'%id
200 sys.exit()
201
202 ifc = Interface(id)
203 opms = t[4]
204 opms.reverse()
205 #检测函数名称是否有重复
206 # print opms
207 for opm in opms:
208 if not ifc.createOperateMember(opm):
209
210 print 'error: line %s createOperateMember failed! interface:: %s.%s'%( t.lineno(3),t[2],opm.name)
211 sys.exit()
212 # print type(ifc.children)
213 types_def[id] = ifc
214 t[0] = ifc # reduce to syntax tree
215
216
217
218 def p_operatemembers(t):
219 '''
220 operatemembers : operatemember
221 '''
222 #print 'operatemember num:',len(t) # 1 means no operatemebmer
223 # if len(t) > 1:
224 # t[0] = t[1]
225 # else:
226 # t[0] = []
227 t[0] = [t[1],]
228
229
230 def p_operatemembers_2(t):
231 '''
232 operatemembers : operatemember operatemembers
233 '''
234 if type(t[2]) != type([]):
235 t[0] = [t[1],t[2]]
236 else:
237 t[2].append(t[1])
238 t[0] = t[2]
239
240 def p_operatemember(t):
241 '''
242 operatemember : callreturn IDENTIFIER '(' operateparams ')' ';'
243
244 '''
245 params = t[4]
246 params.reverse() # 这里必须进行倒置一下
247 for p in params:
248 if p.id in ('d','p','m','r','idx','size','cr','container','o','prx','m2'):
249 p.id+='_'
250 opm = OperateMember(t[2],t[1],params)
251 t[0] = opm
252 # print 'x1.',opm
253
254 def p_operateparams(t):
255 '''
256 operateparams : type_id
257 |
258 '''
259 if len(t) > 1:
260 t[0] = [ t[1],]
261 else:
262 t[0] =[ ]
263
264
265 def p_operateparams_2(t):
266 '''
267 operateparams : type_id ',' operateparams
268 '''
269
270 t[3].append(t[1])
271 t[0] = t[3]
272
273 def p_callreturn(t):
274 '''
275 callreturn : type
276 '''
277 t[0] = t[1]
278
279
280 def p_struct_def(t):
281 ''' struct_def : STRUCT IDENTIFIER '{' datamembers '}' '''
282 id = t[2]
283
284 type = getTypeDef(id)
285 if type:
286 print 'error struct name:%s existed!'%(id)
287 sys.exit()
288
289 st = Struct(id)
290 # print t[4]
291 t[4].reverse()
292 for dm in t[4]:
293 if not st.createDataMember(dm):
294 print 'error: datamember<%s> name<%s> has existed!'%(id,dm.id)
295 sys.exit()
296
297 types_def[id] = st #注册数据类型到全局类型表
298 #print types_def
299 t[0] = st
300
301
302
303 def p_datamembers(t):
304 '''
305 datamembers : datamember
306 '''
307 #print t[1]
308 #t[0] = t[1]
309 t[0] = [t[1],]
310 #print 'a1..'
311 #print t[0]
312
313 def p_datamembers_2(t):
314 '''
315 datamembers : datamember datamembers
316 '''
317 if type(t[2]) != type([]):
318 t[0] = [t[1],t[2]]
319 else:
320 t[2].append(t[1])
321 t[0] = t[2]
322
323
324 def p_datamember(t):
325 '''
326 datamember : type_id ';'
327 '''
328 #print 'datamenber..'
329 t[0] = t[1]
330
331 def p_type_id(t):
332 '''
333 type_id : type IDENTIFIER
334 '''
335 #print t[1],t[2]
336 id = t[2]
337 if not checkVariantName(id):
338 print 'error: type_id.id<%s> illegal!'%(id)
339 sys.exit()
340
341 t[0] = TypeId(t[1],t[2])
342
343
344
345
346 def p_type(t):
347 '''type : IDENTIFIER
348 '''
349 type = getTypeDef(t[1])
350
351 if type:
352 t[0] = type
353 else:
354 print 'error: line %s'%(t.lineno),' type:%s not existed!'%t[1]
355 sys.exit()
356
357
358 def p_error(t):
359 print("Syntax error at '%s'" % t)
360 #print t.lineno,t.lexpos
361
362 yacc.yacc(debug=True,method="SLR")
363
364 data='''
365
366 sequence < int > IntList;
367
368 struct student {
369 int x;
370 int y;
371 int z;
372 double fractor;
373 IntList ids;
374 };
375
376 interface booksystem{
377 int test1(int age);
378 int test2(int age);
379 };
380
381 struct dog{
382 int name;
383 string dog;
384 int name2;
385 student st1;
386 };
387
388
389
390 '''
391
392 data='''
393
394 struct animal{
395 int x;
396 };
397
398 sequence < animal > IntList;
399
400 struct student {
401 int x;
402 int y;
403 int z;
404 double fractor;
405 IntList ids;
406 };
407
408 interface booksystem{
409 int test1(int age);
410 int test2(int age);
411 };
412
413 sequence<IntList> XX;
414
415 dictionary<int,int> int2_t;
416
417 dictionary<int2_t,string> intstr_t;
418
419
420 '''
421
422 def filterComments(data):
423 return data
424 lines = data.split("\n")
425 result=[]
426 for line in lines:
427 x = line.strip()
428 if x and x[0] =='#':
429 continue
430 result.append(line)
431 data = string.join(result,'\n')
432 return data
433
434 def syntax_result(data):
435 return yacc.parse( filterComments(data))
436
以上为词法和语法解析idl的代码，生成了语法树了，这部分如果idl不做扩展，这部分是无需修改 接下来就是各种语言版本的代码mapping了，也就是根据grammar tree的生成对于的框架代码，代码过长，这里就不帖了
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