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
  | 
// Copyright 2017-2025 WIT.COM Inc. All rights reserved.
// Use of this source code is governed by the GPL 3.0
package main
import (
	"fmt"
	"io"
)
// generates Find() and some other stuff
func (msg *MsgName) generateFindBy(w io.Writer, FUNCNAME, STRUCT string, sortvals *Sort, childVar *MsgVar) string {
	LOCK := msg.getLockname("x")
	VARNAME := sortvals.VarName
	VARTYPE := sortvals.VarType
	COLOR := childVar.VarName
	if childVar.VarType == "string" {
		funcdef := "func (x *" + STRUCT + ") " + FUNCNAME + "(s string) *" + VARTYPE
		fmt.Fprintln(w, "// lookup a", STRUCT, "by the ", COLOR)
		fmt.Fprintln(w, funcdef, "{")
		fmt.Fprintln(w, "	if x == nil {")
		fmt.Fprintln(w, "		return nil")
		fmt.Fprintln(w, "	}")
		fmt.Fprintln(w, "")
		fmt.Fprintln(w, "	"+LOCK+".RLock()")
		fmt.Fprintln(w, "	defer "+LOCK+".RUnlock()")
		fmt.Fprintln(w, "")
		fmt.Fprintln(w, "	for i, _ := range x."+VARNAME+" {")
		fmt.Fprintln(w, "		if x."+VARNAME+"[i]."+COLOR+" == s {")
		fmt.Fprintln(w, "			return x."+VARNAME+"[i]")
		fmt.Fprintln(w, "		}")
		fmt.Fprintln(w, "	}")
		fmt.Fprintln(w, "	return nil")
		fmt.Fprintln(w, "}")
		fmt.Fprintln(w, "")
		return funcdef
	}
	if childVar.VarType == "int64" {
		funcdef := "func (x *" + STRUCT + ") " + FUNCNAME + "(y int64) *" + VARTYPE
		fmt.Fprintln(w, "// lookup a", STRUCT, "by the ", COLOR)
		fmt.Fprintln(w, funcdef, "{")
		fmt.Fprintln(w, "	if x == nil {")
		fmt.Fprintln(w, "		return nil")
		fmt.Fprintln(w, "	}")
		fmt.Fprintln(w, "")
		fmt.Fprintln(w, "	"+LOCK+".RLock()")
		fmt.Fprintln(w, "	defer "+LOCK+".RUnlock()")
		fmt.Fprintln(w, "")
		fmt.Fprintln(w, "	for i, _ := range x."+VARNAME+" {")
		fmt.Fprintln(w, "		if x."+VARNAME+"[i]."+COLOR+" == y {")
		fmt.Fprintln(w, "			return x."+VARNAME+"[i]")
		fmt.Fprintln(w, "		}")
		fmt.Fprintln(w, "	}")
		fmt.Fprintln(w, "	return nil")
		fmt.Fprintln(w, "}")
		fmt.Fprintln(w, "")
		return funcdef
	}
	return ""
}
  |