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。 www.2cto.com
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{
2string id;
3 };
4 //心跳
5
6 struct Ts_gps_p_GPS_t{
7float lon;
8float lat;
9float speed;
10float direction;
11inttime;
12 };
13
14 struct Ts_gps_p_Properties_t{
15string senderid;
16string target_type;
17string users;
18string groups;
19 };
20
21 struct Ts_verify_r_User_t{
22string id;
23 };
24
25 struct Ts_verify_r_Group_t{
26string id;
27string name;
28string type;
29 };
30
31 sequence<Ts_verify_r_Group_t> Ts_verify_r_Groups_t;
32
33 struct Ts_verify_r_Result_t{
34int code;
35string msg;
36Ts_verify_r_User_t user;
37Ts_verify_r_Groups_t groups;
38 };
39
40
41 struct Ts_verify_p_User_t{
42string token;
43 };
44
45 interface Ts{
46void heartbeat(Ts_heartbeat_p_User_t p);
47void gps(Ts_gps_p_GPS_t p,Ts_gps_p_Properties_t props);
48Ts_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{
13TsProxy tsprx = null;
14String token="dBmPPfxxohFmXjx4SUv46BffzmeYitbjmzT2mRHLttGaau4kiTvKEOpW2BJE0IGLEBFZ4lE/KrMKl7qE6pNmaBUfbixMrPEG/1Xfsp36P4lmZHhQfkVgyGWa8yi5g/swbMpg8h2ybC2dQShR18VFtQkXGpEUg8VfV1Fb0UllN6j/umVaBBQX7lgqcf3zkIaGcOpvS7FB6snC/PWU1crCf2gHrgnOmZgIaKmBF14dkJsSoozRGKiIpiCjJ7mRZ05og67ZmFfOaH2EnaCo3G1pmQcez7MOqCtIvNpGo5yivmZ6GyMA2eSIlFmD2Z7ysCrxzAt92UUCNwb9mkKZrUthjA==";
15
16double 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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};
17publicintii=100;
18
19
20Ts_verify_r_Result_t user_ok = null;
21
22Terminal termthis = null;
23RpcCommAdapter adapter = null;
24Thread thread;
25SnsTestMain(){
26
27
28thread = new Thread(new Runnable(){
29public void run(){
30try{
31while(true){
32Thread.sleep(2000);
33if(tsprx!=null){
34heartbeat();
35send_gps();
36}
37
38}
39}catch(Exception e){
40System.out.println(e.toString());
41System.out.println("thread exiting");
42}
43}
44
45});
46//thread.start();
47
48initServant();
49}
50
51void initServant(){
52adapter = RpcCommunicator.instance().createAdapter("termimal",RpcConsts.MSG_ENCODE_XML);
53termthis = new Terminal(){
54@Override
55public void hello(RpcContext ctx){
56
57}
58};
59adapter.addServant(termthis);
60}
61
62void heartbeat(){
63Ts_heartbeat_p_User_t user = new Ts_heartbeat_p_User_t();
64user.id = user_ok.user.id;
65tsprx.heartbeat_oneway(user);
66}
67
68
69void send_gps(){
70Ts_gps_p_GPS_t gps = new Ts_gps_p_GPS_t();
71gps.lon= Float.valueOf((float)121.2004);
72gps.lat= Float.valueOf((float)31.1234);
73gps.speed = (float)0.0;
74gps.direction = (float)35.5;
75gps.time = new Date().getSeconds();
76Ts_gps_p_Properties_t props = new Ts_gps_p_Properties_t();
77props.senderid = user_ok.user.id;
78props.target_type="2";
79props.users="1001,1002";
80props.groups="2001,2001";
81tsprx.gps_oneway(gps, props);
82
83}
84
85public Tc_redirect_r_Result_t test_redirect(){
86
87TcProxy tc = TcProxy.createWithXML("172.26.181.193", 8881); //8889
88Tc_redirect_p_User_t user = new Tc_redirect_p_User_t();
89user.token = token;
90Tc_redirect_r_Result_t r = null;
91try{
92tc.redirect_async(user, new Tc_AsyncCallBack(){
93@Override
94public void redirect(Tc_redirect_r_Result_t result,RpcProxyBase proxy){
95System.out.println(String.format("%s %d", result.tc_srv_ip,result.tc_srv_port));
96//到这里重定向调度okay
97test_verify(result.tc_srv_ip,result.tc_srv_port);
98}
99@Override
100protected void onError(String name,String msg,RpcProxyBase proxy){
101System.out.println(String.format("error: %s msg:%s",name,msg));
102}
103});
104//tc.destroy();
105}catch(Exception e){
106System.out.println(e.toString());
107return null;
108}
109return r;
110}
111
112public Tc_redirect_r_Result_t test_verify(String host,int port){
113tsprx = TsProxy.createWithXML(host, port);
114Ts_verify_p_User_t user = new Ts_verify_p_User_t();
115user.token = token;
116try{
117tsprx.verify_async(user, new Ts_AsyncCallBack(){
118@Override
119public void verify(Ts_verify_r_Result_t result,RpcProxyBase proxy){
120System.out.println(String.format("verify back() msg:%s code:%d gourps.length:%d", result.msg,result.code,result.groups.size()));
121user_ok = result;
122tsprx.conn.attachAdapter(adapter);
123send_gps();
124}
125});
126//ts.destroy();
127}catch(Exception e){
128System.out.println(e.toString());
129return null;
130}
131return null;
132}
133
134
135public static void test(){
136SnsTestMain sns = new SnsTestMain();
137sns.test_redirect();
138}
139
140public static void mainxxx(String[] args) {
141SnsTestMain.test();
142
143}
144
145 }
146
IDL 语法树结构 python+ ply
lexical.py
1 importsys
2
3 language = 'py'
4 arch = '32'
5
6 class SyntexTreeNode:
7def __init__(self,name):
8self.name = None
9
10 class Container:
11def __init__(self,name=''):
12 #SyntexTreeNode.__init__(self,name)
13self.children={}
14self.list=[]
15
16def addChild(self,c):
17#self.children.append(c)
18self.children[c.getName()] = c
19self.list.append(c)
20
21def createStruct(self,st):
22pass
23
24def createInterface(self,ifc):
25pass
26
27def createSequence(self,seq):
28pass
29
30def createDictionary(self,dict):
31pass
32
33def createEnumeration(self,enm):
34pass
35
36def createUnit(self,unit):
37pass
38
39
40
41
42
43 class Contained:
44def __init__(self,container=None):
45self.container =container
46
47 class TypeId:
48def __init__(self,type,id): #变量定义type id;
49self.type = type # int name, <int> is type, <name> is id
50self.id = id
51
52
53 class TypeBase:
54def __init__(self,name):
55self.name = name
56self.idx = 0 #索引，用于数据序列化时类型识别
57#self.type = name
58
59def getName(self):
60return self.name
61
62def getTypeDefaultValue(self):
63if language == 'py':
64return '%s()'%self.name
65if language =='as':
66return 'new %s()'%self.name
67if language =='cpp':
68return '%s()'%self.name
69if language =='java':
70return 'new %s()'%self.name
71
72def getMappingTypeName(self):
73r = self.name
74
75return r
76
77 class DataMember(Contained):
78def __init__(self,d,container): # d - type_id
79Contained.__init__(self,container)
80self.d = d
81self.name = d.id
82self.type = d.type
83
84 class Sequence(Contained,TypeBase):
85def __init__(self,name,type):
86TypeBase.__init__(self,name)
87self.type = type # sequence<type> name;
88self.valuetype = type
89
90def getTypeDefaultValue(self):
91if language == 'py':
92return '[]'
93if language == 'as':
94return 'new Array()'
95if language =='cpp':
96return 'std::vector< %s >()'%self.type.getMappingTypeName()
97if language =='java':
98return 'new Vector<%s>()'%self.type.getMappingTypeName()
99
100def getMappingTypeName(self):
101r = ''
102if language == 'as':
103r = 'Array'
104
105if language =='cpp':
106return 'std::vector< %s >'%self.type.getMappingTypeName()
107if language =='java':
108return 'Vector<%s>'%self.type.getMappingTypeName()
109
110return r
111
112 class Dictionary(Contained,TypeBase):
113def __init__(self,name,first,second):
114TypeBase.__init__(self,name)
115self.first = first
116self.second = second
117
118def getTypeDefaultValue(self):
119if language =='py':
120return '{}'
121if language == 'as':
122return 'new HashMap()'
123
124if 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
127return 'std::map< %s,%s >()'%(self.first.getMappingTypeName(),self.second.getMappingTypeName())
128if language =='java':
129return 'new Hashtable<%s,%s>()'%(self.first.getMappingTypeName(),
130self.second.getMappingTypeName()
131)
132
133
134def getMappingTypeName(self):
135r = ''
136if language == 'as':
137r = 'HashMap'
138if language =='cpp':
139 #return 'boost::shared_ptr< std::map<%s,%s> >'%(self.first.name,self.second.name)
140 #return '%s::hash_type'%(self.name)
141r = 'std::map< %s,%s >'%(self.first.getMappingTypeName(),self.second.getMappingTypeName() )
142
143if language == 'java':
144r = 'Hashtable< %s,%s >'%(self.first.getMappingTypeName(),self.second.getMappingTypeName() )
145
146return r
147
148 class Enumeration(Contained,TypeBase):
149def __init__(self,name):
150TypeBase.__init__(name)
151
152 class OperateMember(Contained):
153def __init__(self,name,type,params):
154self.name = name
155self.type = type # callreturn[ typefoo(params) ]
156self.params = params
157pass
158
159 class Struct(Container,Contained,TypeBase):
160def __init__(self,name):
161Container.__init__(self)
162Contained.__init__(self)
163TypeBase.__init__(self,name)
164
165def createDataMember(self,dm):
166if self.children.has_key(dm.id):
167return False
168e = DataMember(dm,self)
169self.children[dm.id] = e
170self.list.append(e)
171return True
172
173
174
175 class Interface(Container,Contained,TypeBase):
176def __init__(self,name):
177Container.__init__(self)
178Contained.__init__(self)
179TypeBase.__init__(self,name)
180
181
182
183def createOperateMember(self,opm):
184
185if self.children.has_key(opm.name):
186return False
187self.children[opm.name] = opm
188self.list.append(opm)
189
190return True
191
192 class Unit(Container):
193def __init__(self):
194Container.__init__(self)
195pass
196
197
198 class Builtin(TypeBase):
199def __init__(self,type):
200TypeBase.__init__(self,type)
201self.type = type
202
203tables =[
204'byte',
205'bool',
206'short',
207'int',
208'long',
209'float',
210'double',
211'string',
212]
213
214@staticmethod
215def isBuiltinType(type):
216return Builtin.tables.count(type)
217
218def getTypeDefaultValue(self):
219r = 'None'
220type = self.type
221if type in ('byte','short','int','long'):
222r = '0'
223if language == 'java':
224if type == 'byte':
225#r= '%s.valueOf( (byte)0)'%self.getMappingTypeName()
226r = '0'
227else:
228r = '%s.valueOf(0)'%self.getMappingTypeName()
229
230elif type in ('float','double'):
231r = '0.0'
232if language == 'java':
233r = '%s.valueOf(0)'%self.getMappingTypeName()
234
235elif type in ('bool'):
236r = 'False'
237if language in ('as','cpp'):
238r = 'false'
239 #if language == 'cpp':
240 #r = 'false'
241if language == 'java':
242r = '%s.valueOf(false)'%self.getMappingTypeName()
243
244elif type in ('string'):
245r = "''"
246if language in ('as','cpp','java'):
247r ="\"\""
248 #if language =='cpp':
249 #r = "\"\""
250
251return r
252
253def getMappingTypeName(self):
254r = '-^|^*'*5
255
256if language == 'as':
257type = self.type
258if type in ('byte',) : #'bool'):
259r ='uint'
260if type in ('bool',):
261r = 'Boolean'
262if type in ('short','int'):
263r = 'int'
264elif type in ('float','long','double'):
265r = 'Number'
266elif type in ('string'):
267r = "String"
268elif type in ('void'):
269r ='void'
270
271if language == 'cpp':
272type = self.type
273
274if type in ('byte',) : #'bool'):
275r ='unsigned char'
276if type in ('bool',):
277r = 'bool'
278if type in ('short',):
279r ='short'
280if type in ('int',):
281r = 'int'
282elif type in ('float',):
283r = type
284elif type in ('long',):
285r = type
286if arch =='32':
287r = 'long long'
288elif type in ('double',):
289r = type
290elif type in ('string'):
291r = "std::string"
292elif type in ('void'):
293r ='void'
294
295if language == 'java':
296type = self.type
297
298if type in ('byte',) : #'bool'):
299r ='Byte'
300if type in ('bool',):
301r = 'Boolean'
302if type in ('short',):
303r ='Short'
304if type in ('int',):
305r = 'Integer'
306elif type in ('float',):
307r = 'Float'
308elif type in ('long',):
309r = 'Long'
310
311elif type in ('double',):
312r = 'Double'
313elif type in ('string'):
314r = "String"
315elif type in ('void'):
316r ='void'
317
318return r
319
320@staticmethod
321def id(name):
322pass
323
324@staticmethod
325def str(id_):
326pass
327
328 types_def={}
329 kwds=['struct',
330'interface',
331'sequence',
332'dictionary',
333'exception',
334'void'
335]
336
337 def getTypeDef(type):
338t = types_def.get(type,None)
339return t
340
341 #检测变量名称是否合法
342 def checkVariantName(name,all=True):
343if kwds.count(name):
344return False
345if all:
346if getTypeDef(name):
347return False
348return True
349
350 def initBuiltinTypes():
351for t in Builtin.tables:
352types_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 #scottshanghai china
5 # qq:24509826 msn: socketref@hotmail.com
6 #
7
8 importsys
9
10
11
12 if".."notinsys.path:sys.path.insert(0,"..")
13
14 import os,sys,os.path,struct,time,traceback,string
15
16 importply.lexaslex
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'
42return t
43
44 def t_DICTIONARY(t):
45'dictionary'
46return t
47
48
49 def t_STRUCT(t):
50'struct'
51return t
52
53
54 def t_INTERFACE(t):
55'interface'
56return 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_]*'
64return t
65
66 t_NUMBER=r'\d+([uU]|[lL]|[uU][lL]|[lL][uU])?'
67
68 t_ignore="\t"
69
70 deft_newline(t):
71r'\n+'
72t.lexer.lineno+=1 #int(t.value) #.count("\n")
73
74
75 deft_error(t):
76print("Illegalcharacter'%s'"%t.value[0])
77t.lexer.skip(1)
78
79 literals = [ '{','}',';','(',')','<','>',',' ]
80
81 #Buildthelexer
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
101defs = t[1]
102unit = Unit()
103
104defs.reverse()
105
106 #print defs
107for d in defs:
108unit.addChild( d )
109
110
111t[0] = unit
112
113#t[0] = t[1]
114#print t[0]
115
116 def p_definations(t):
117'''definations : defination '''
118
119t[0] = [t[1],]
120
121 def p_definations_2(t):
122'''definations : definationdefinations'''
123t[2].append(t[1])
124t[0]= t[2]
125
126 def p_defination(t):
127''' defination : struct_def ';'
128| interface_def ';'
129| sequence_def ';'
130| dictionary_def ';'
131|
132'''
133t[0]=t[1]
134
135
136 def p_sequence_def(t):
137'''
138sequence_def : SEQUENCE '<' type '>' IDENTIFIER
139'''
140 #print 'sequence..',t[3]
141name = t[5]
142
143if not checkVariantName(name,False):
144print 'error: sequence<%s>.%s illegal!'%(t[3],name)
145sys.exit()
146
147if getTypeDef(name):
148print 'error: line %s sequence (%s) has existed!'%(t.lineno(1),name)
149sys.exit() #sequence的类型名存在
150
151type_ = 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
157seq = Sequence(name,type_)
158types_def[name] = seq
159t[0] = seq
160
161 def p_dictionary_def(t):
162'''
163dictionary_def : DICTIONARY '<' type ',' type '>' IDENTIFIER
164'''
165first = t[3]
166second = t[5]
167name = t[7]
168 #print first,second,name
169
170if not checkVariantName(name,False):
171print 'error: dictionary < %s > illegal!'%(name)
172sys.exit()
173
174if getTypeDef(name):
175print 'error: line %s dictionary type (%s) has existed!'%(t.lineno(1),name)
176sys.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
187dict = Dictionary(name,first,second)
188types_def[name] = dict
189t[0] = dict
190
191 def p_interface_def(t):
192'''
193interface_def :INTERFACE IDENTIFIER '{' operatemembers '}'
194'''
195 #print t[1],t[2]
196id = t[2]
197type_ = getTypeDef(id)
198if type_:
199print 'error: interface name(%s) has existed!'%id
200sys.exit()
201
202ifc = Interface(id)
203opms = t[4]
204opms.reverse()
205#检测函数名称是否有重复
206 #print opms
207for opm in opms:
208if not ifc.createOperateMember(opm):
209
210print 'error: line %s createOperateMember failed! interface:: %s.%s'%( t.lineno(3),t[2],opm.name)
211sys.exit()
212 #print type(ifc.children)
213types_def[id] = ifc
214t[0] = ifc # reduce to syntax tree
215
216
217
218 def p_operatemembers(t):
219'''
220operatemembers : 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] = []
227t[0] = [t[1],]
228
229
230 def p_operatemembers_2(t):
231'''
232operatemembers : operatemember operatemembers
233'''
234if type(t[2]) != type([]):
235t[0] = [t[1],t[2]]
236else:
237t[2].append(t[1])
238t[0] = t[2]
239
240 def p_operatemember(t):
241'''
242operatemember : callreturn IDENTIFIER '(' operateparams ')' ';'
243
244'''
245params = t[4]
246params.reverse()# 这里必须进行倒置一下
247for p in params:
248if p.id in ('d','p','m','r','idx','size','cr','container','o','prx','m2'):
249p.id+='_'
250opm = OperateMember(t[2],t[1],params)
251t[0] = opm
252 #print 'x1.',opm
253
254 def p_operateparams(t):
255'''
256operateparams : type_id
257|
258'''
259if len(t) > 1:
260t[0] = [ t[1],]
261else:
262t[0] =[ ]
263
264
265 def p_operateparams_2(t):
266'''
267operateparams : type_id ',' operateparams
268'''
269
270t[3].append(t[1])
271t[0] = t[3]
272
273 def p_callreturn(t):
274'''
275callreturn : type
276'''
277t[0] = t[1]
278
279
280 def p_struct_def(t):
281''' struct_def : STRUCT IDENTIFIER '{' datamembers '}' '''
282id = t[2]
283
284type = getTypeDef(id)
285iftype:
286print 'error struct name:%s existed!'%(id)
287sys.exit()
288
289st= Struct(id)
290 #print t[4]
291t[4].reverse()
292for dm in t[4]:
293if not st.createDataMember(dm):
294print 'error: datamember<%s> name<%s> has existed!'%(id,dm.id)
295sys.exit()
296
297types_def[id] = st#注册数据类型到全局类型表
298#print types_def
299t[0] = st
300
301
302
303 def p_datamembers(t):
304'''
305datamembers :datamember
306'''
307#print t[1]
308#t[0] = t[1]
309t[0] = [t[1],]
310#print 'a1..'
311#print t[0]
312
313 def p_datamembers_2(t):
314'''
315datamembers :datamember datamembers
316'''
317if type(t[2]) != type([]):
318t[0] = [t[1],t[2]]
319else:
320t[2].append(t[1])
321t[0] = t[2]
322
323
324 def p_datamember(t):
325'''
326datamember : type_id ';'
327'''
328#print 'datamenber..'
329t[0] =t[1]
330
331 def p_type_id(t):
332'''
333type_id : type IDENTIFIER
334'''
335#print t[1],t[2]
336id = t[2]
337if not checkVariantName(id):
338print 'error: type_id.id<%s> illegal!'%(id)
339sys.exit()
340
341t[0] = TypeId(t[1],t[2])
342
343
344
345
346 def p_type(t):
347'''type : IDENTIFIER
348'''
349type = getTypeDef(t[1])
350
351if type:
352t[0] = type
353else:
354print 'error: line %s'%(t.lineno),' type:%s not existed!'%t[1]
355sys.exit()
356
357
358 def p_error(t):
359print("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 {
369int x;
370int y;
371int z;
372double fractor;
373IntList ids;
374 };
375
376 interface booksystem{
377int test1(int age);
378int test2(int age);
379 };
380
381 struct dog{
382int name;
383string dog;
384int name2;
385student st1;
386 };
387
388
389
390 '''
391
392 data='''
393
394 struct animal{
395int x;
396 };
397
398 sequence < animal > IntList;
399
400 struct student {
401int x;
402int y;
403int z;
404double fractor;
405IntList ids;
406 };
407
408 interface booksystem{
409int test1(int age);
410int 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):
423return data
424lines = data.split("\n")
425result=[]
426for line in lines:
427x = line.strip()
428if x and x[0] =='#':
429continue
430result.append(line)
431data = string.join(result,'\n')
432return data
433
434 def syntax_result(data):
435return yacc.parse( filterComments(data))
