1 // 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.
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.
16 // valueToString returns a textual representation of the reflection value val.
17 // For debugging only.
18 func valueToString(val Value) string {
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:
33 return strconv.FormatFloat(real(c), 'g', -1, 64) + "+" + strconv.FormatFloat(imag(c), 'g', -1, 64) + "i"
44 str = typ.String() + "("
48 str += "&" + valueToString(v.Elem())
56 for i := 0; i < v.Len(); i++ {
60 str += valueToString(v.Index(i))
68 str += "<can't iterate on maps>"
79 for i, n := 0, v.NumField(); i < n; i++ {
83 str += valueToString(v.Field(i))
88 return typ.String() + "(" + valueToString(val.Elem()) + ")"
91 return typ.String() + "(" + strconv.FormatUint(uint64(v.Pointer()), 10) + ")"
93 panic("valueToString: can't print type " + typ.String())
95 return "valueToString: can't happen"