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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libgo/] [go/] [reflect/] [tostring_test.go] - Blame information for rev 801

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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
 
// Formatting of reflection types and values for debugging.
// Not defined as methods so they do not need to be linked into most binaries;
// the functions are not used by the library itself, only in tests.
 
package reflect_test
 
import (
        . "reflect"
        "strconv"
)
 
// valueToString returns a textual representation of the reflection value val.
// For debugging only.
func valueToString(val Value) string {
        var str string
        if !val.IsValid() {
                return ""
        }
        typ := val.Type()
        switch val.Kind() {
        case Int, Int8, Int16, Int32, Int64:
                return strconv.FormatInt(val.Int(), 10)
        case Uint, Uint8, Uint16, Uint32, Uint64, Uintptr:
                return strconv.FormatUint(val.Uint(), 10)
        case Float32, Float64:
                return strconv.FormatFloat(val.Float(), 'g', -1, 64)
        case Complex64, Complex128:
                c := val.Complex()
                return strconv.FormatFloat(real(c), 'g', -1, 64) + "+" + strconv.FormatFloat(imag(c), 'g', -1, 64) + "i"
        case String:
                return val.String()
        case Bool:
                if val.Bool() {
                        return "true"
                } else {
                        return "false"
                }
        case Ptr:
                v := val
                str = typ.String() + "("
                if v.IsNil() {
                        str += "0"
                } else {
                        str += "&" + valueToString(v.Elem())
                }
                str += ")"
                return str
        case Array, Slice:
                v := val
                str += typ.String()
                str += "{"
                for i := 0; i < v.Len(); i++ {
                        if i > 0 {
                                str += ", "
                        }
                        str += valueToString(v.Index(i))
                }
                str += "}"
                return str
        case Map:
                t := typ
                str = t.String()
                str += "{"
                str += ""
                str += "}"
                return str
        case Chan:
                str = typ.String()
                return str
        case Struct:
                t := typ
                v := val
                str += t.String()
                str += "{"
                for i, n := 0, v.NumField(); i < n; i++ {
                        if i > 0 {
                                str += ", "
                        }
                        str += valueToString(v.Field(i))
                }
                str += "}"
                return str
        case Interface:
                return typ.String() + "(" + valueToString(val.Elem()) + ")"
        case Func:
                v := val
                return typ.String() + "(" + strconv.FormatUint(uint64(v.Pointer()), 10) + ")"
        default:
                panic("valueToString: can't print type " + typ.String())
        }
        return "valueToString: can't happen"
}

Line No.	Rev	Author	Line
1	747	jeremybenn	`// Copyright 2009 The Go Authors. All rights reserved.`
2			`// Use of this source code is governed by a BSD-style`
3			`// license that can be found in the LICENSE file.`
4
5			`// Formatting of reflection types and values for debugging.`
6			`// Not defined as methods so they do not need to be linked into most binaries;`
7			`// the functions are not used by the library itself, only in tests.`
8
9			`package reflect_test`
10
11			`import (`
12			`. "reflect"`
13			`"strconv"`
14			`)`
15
16			`// valueToString returns a textual representation of the reflection value val.`
17			`// For debugging only.`
18			`func valueToString(val Value) string {`
19			`var str string`
20			`if !val.IsValid() {`
21			`return ""`
22			`}`
23			`typ := val.Type()`
24			`switch val.Kind() {`
25			`case Int, Int8, Int16, Int32, Int64:`
26			`return strconv.FormatInt(val.Int(), 10)`
27			`case Uint, Uint8, Uint16, Uint32, Uint64, Uintptr:`
28			`return strconv.FormatUint(val.Uint(), 10)`
29			`case Float32, Float64:`
30			`return strconv.FormatFloat(val.Float(), 'g', -1, 64)`
31			`case Complex64, Complex128:`
32			`c := val.Complex()`
33			`return strconv.FormatFloat(real(c), 'g', -1, 64) + "+" + strconv.FormatFloat(imag(c), 'g', -1, 64) + "i"`
34			`case String:`
35			`return val.String()`
36			`case Bool:`
37			`if val.Bool() {`
38			`return "true"`
39			`} else {`
40			`return "false"`
41			`}`
42			`case Ptr:`
43			`v := val`
44			`str = typ.String() + "("`
45			`if v.IsNil() {`
46			`str += "0"`
47			`} else {`
48			`str += "&" + valueToString(v.Elem())`
49			`}`
50			`str += ")"`
51			`return str`
52			`case Array, Slice:`
53			`v := val`
54			`str += typ.String()`
55			`str += "{"`
56			`for i := 0; i < v.Len(); i++ {`
57			`if i > 0 {`
58			`str += ", "`
59			`}`
60			`str += valueToString(v.Index(i))`
61			`}`
62			`str += "}"`
63			`return str`
64			`case Map:`
65			`t := typ`
66			`str = t.String()`
67			`str += "{"`
68			`str += ""`
69			`str += "}"`
70			`return str`
71			`case Chan:`
72			`str = typ.String()`
73			`return str`
74			`case Struct:`
75			`t := typ`
76			`v := val`
77			`str += t.String()`
78			`str += "{"`
79			`for i, n := 0, v.NumField(); i < n; i++ {`
80			`if i > 0 {`
81			`str += ", "`
82			`}`
83			`str += valueToString(v.Field(i))`
84			`}`
85			`str += "}"`
86			`return str`
87			`case Interface:`
88			`return typ.String() + "(" + valueToString(val.Elem()) + ")"`
89			`case Func:`
90			`v := val`
91			`return typ.String() + "(" + strconv.FormatUint(uint64(v.Pointer()), 10) + ")"`
92			`default:`
93			`panic("valueToString: can't print type " + typ.String())`
94			`}`
95			`return "valueToString: can't happen"`
96			`}`

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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libgo/] [go/] [reflect/] [tostring_test.go] - Blame information for rev 801