diff options
Diffstat (limited to 'Godeps/_workspace/src/github.com/obscuren/otto/value_string.go')
-rw-r--r-- | Godeps/_workspace/src/github.com/obscuren/otto/value_string.go | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/Godeps/_workspace/src/github.com/obscuren/otto/value_string.go b/Godeps/_workspace/src/github.com/obscuren/otto/value_string.go deleted file mode 100644 index 39749cce2..000000000 --- a/Godeps/_workspace/src/github.com/obscuren/otto/value_string.go +++ /dev/null @@ -1,101 +0,0 @@ -package otto - -import ( - "fmt" - "math" - "regexp" - "strconv" - "unicode/utf16" -) - -var matchLeading0Exponent = regexp.MustCompile(`([eE][\+\-])0+([1-9])`) // 1e-07 => 1e-7 - -func floatToString(value float64, bitsize int) string { - // TODO Fit to ECMA-262 9.8.1 specification - if math.IsNaN(value) { - return "NaN" - } else if math.IsInf(value, 0) { - if math.Signbit(value) { - return "-Infinity" - } - return "Infinity" - } - exponent := math.Log10(math.Abs(value)) - if exponent >= 21 || exponent < -6 { - return matchLeading0Exponent.ReplaceAllString(strconv.FormatFloat(value, 'g', -1, bitsize), "$1$2") - } - return strconv.FormatFloat(value, 'f', -1, bitsize) -} - -func numberToStringRadix(value Value, radix int) string { - float := toFloat(value) - if math.IsNaN(float) { - return "NaN" - } else if math.IsInf(float, 1) { - return "Infinity" - } else if math.IsInf(float, -1) { - return "-Infinity" - } - // FIXME This is very broken - // Need to do proper radix conversion for floats, ... - // This truncates large floats (so bad). - return strconv.FormatInt(int64(float), radix) -} - -func toString(value Value) string { - if value._valueType == valueString { - switch value := value.value.(type) { - case string: - return value - case []uint16: - return string(utf16.Decode(value)) - } - } - if value.IsUndefined() { - return "undefined" - } - if value.IsNull() { - return "null" - } - switch value := value.value.(type) { - case bool: - return strconv.FormatBool(value) - case int: - return strconv.FormatInt(int64(value), 10) - case int8: - return strconv.FormatInt(int64(value), 10) - case int16: - return strconv.FormatInt(int64(value), 10) - case int32: - return strconv.FormatInt(int64(value), 10) - case int64: - return strconv.FormatInt(value, 10) - case uint: - return strconv.FormatUint(uint64(value), 10) - case uint8: - return strconv.FormatUint(uint64(value), 10) - case uint16: - return strconv.FormatUint(uint64(value), 10) - case uint32: - return strconv.FormatUint(uint64(value), 10) - case uint64: - return strconv.FormatUint(value, 10) - case float32: - if value == 0 { - return "0" // Take care not to return -0 - } - return floatToString(float64(value), 32) - case float64: - if value == 0 { - return "0" // Take care not to return -0 - } - return floatToString(value, 64) - case []uint16: - return string(utf16.Decode(value)) - case string: - return value - case *_object: - return toString(value.DefaultValue(defaultValueHintString)) - } - panic(fmt.Errorf("toString(%v %T)", value.value, value.value)) -} |