/
method.go
184 lines (180 loc) · 4.48 KB
/
method.go
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
package rpcx
import (
"go/ast"
"go/token"
"strings"
"github.com/bigdot123456/golib4db/generate"
)
//生成服务代码
func addMethodService(root *ast.File, ifc *generate.Iface, m *generate.Method, structname string) {
notImpl := generate.FetchFuncDecl("Example")
notImpl.Name = m.Name
notImpl.Recv = generate.FieldList(ifc.Reciever())
notImpl.Recv.List[0].Type = &ast.StarExpr{
X: &ast.Ident{Name: structname},
}
//生成请求参数
parms := &ast.FieldList{}
resultTp := m.ResponseStructName()
_, paramTp := m.RequestStructName()
parms.List = []*ast.Field{{
Names: []*ast.Ident{ast.NewIdent("ctx")},
Type: generate.Sel(ast.NewIdent("context"), ast.NewIdent("Context")),
}, {
Names: []*ast.Ident{ast.NewIdent("arg")},
Type: paramTp,
}, {
Names: []*ast.Ident{ast.NewIdent("resp")},
Type: &ast.StarExpr{
X: resultTp,
},
}}
notImpl.Type.Params = parms
notImpl.Type.Results = &ast.FieldList{
List: []*ast.Field{{
Type: ast.NewIdent("error"),
}},
}
ret := notImpl.Body.List[0].(*ast.ExprStmt).X.(*ast.CallExpr)
ret.Fun.(*ast.Ident).Name = notImpl.Recv.List[0].Names[0].Name + ".serv." + m.Name.Name
var args []ast.Expr
if len(m.Params) == 1 {
args = append(args, &ast.BasicLit{
Kind: token.TYPE,
Value: "arg",
})
} else {
for _, v := range m.Params {
args = append(args, &ast.BasicLit{
Kind: token.TYPE,
Value: "arg." + strings.Title(v.Name.Name),
})
}
}
ret.Args = args
responses := m.ResponseStructFields()
r := ast.AssignStmt{
Tok: token.ASSIGN,
Rhs: []ast.Expr{ret},
}
for _, v := range responses.List {
if len(v.Names) > 0 {
r.Lhs = append(r.Lhs, ast.NewIdent("resp."+v.Names[0].Name))
}
}
notImpl.Body.List[0] = &r
rnil := ast.ReturnStmt{
Results: []ast.Expr{
ast.NewIdent("nil"),
},
}
notImpl.Body.List = append(notImpl.Body.List, &rnil)
root.Decls = append(root.Decls, notImpl)
}
//生成客户代码
func addMethodClient(root *ast.File, ifc *generate.Iface, m *generate.Method, structname string) {
notImpl := generate.FetchFuncDecl("Example")
notImpl.Name = m.Name
notImpl.Recv = generate.FieldList(ifc.Reciever())
notImpl.Recv.List[0].Type = &ast.StarExpr{
X: &ast.Ident{Name: structname},
}
//生成请求参数
notImpl.Type.Params = generate.MappedFieldList(func(a generate.Arg) *ast.Field {
return a.Exported()
}, m.Params...)
result := generate.MappedFieldList(func(a generate.Arg) *ast.Field {
return a.Exported()
}, m.Results...)
var returnValue []ast.Expr
for _, v := range result.List {
if len(v.Names) > 0 {
returnValue = append(returnValue, ast.NewIdent("reply."+v.Names[0].Name))
}
}
for _, v := range result.List {
v.Names = nil
}
notImpl.Type.Results = result
ret := notImpl.Body.List[0].(*ast.ExprStmt).X.(*ast.CallExpr)
ret.Fun.(*ast.Ident).Name = notImpl.Recv.List[0].Names[0].Name + ".client.Call"
var args []ast.Expr
args = append(args, &ast.BasicLit{
Kind: token.TYPE,
Value: "context.Background()",
}, &ast.BasicLit{
Kind: token.STRING,
Value: "\"" + m.Name.Name + "\"",
}, &ast.BasicLit{
Kind: token.TYPE,
Value: "arg",
}, &ast.BasicLit{
Kind: token.TYPE,
Value: "reply",
})
ret.Args = args
r := ast.AssignStmt{
Tok: token.DEFINE,
Rhs: []ast.Expr{ret},
Lhs: []ast.Expr{ast.NewIdent("err")},
}
//请求参数封装
argr := &ast.AssignStmt{
Tok: token.DEFINE,
Lhs: []ast.Expr{ast.NewIdent("arg")},
}
if len(m.Params) == 1 {
argr.Rhs = []ast.Expr{
ast.NewIdent(strings.Title(m.Params[0].Name.Name)),
}
} else {
argr.Rhs = []ast.Expr{
&ast.UnaryExpr{
Op: token.AND,
X: m.WrapRequest(),
},
}
}
notImpl.Body.List[0] = argr
reply := &ast.AssignStmt{
Tok: token.DEFINE,
Rhs: []ast.Expr{
&ast.UnaryExpr{
Op: token.AND,
X: &ast.CompositeLit{
Type: m.ResponseStructName(),
},
},
},
Lhs: []ast.Expr{ast.NewIdent("reply")},
}
notImpl.Body.List = append(notImpl.Body.List, reply)
//返回参数封装
notImpl.Body.List = append(notImpl.Body.List, &r)
s := &ast.IfStmt{
Cond: &ast.BasicLit{
Kind: token.TYPE,
Value: "err != nil",
},
Body: &ast.BlockStmt{
List: []ast.Stmt{
&ast.ExprStmt{
X: &ast.CallExpr{
Fun: &ast.Ident{
Name: "log.Error",
},
Args: []ast.Expr{
&ast.Ident{Name: `"RPCX调用错误:%s",err.Error()`},
},
},
},
},
},
}
notImpl.Body.List = append(notImpl.Body.List, s)
rnil := ast.ReturnStmt{
Results: returnValue,
}
notImpl.Body.List = append(notImpl.Body.List, &rnil)
root.Decls = append(root.Decls, notImpl)
}