1 files changed, 208 insertions, 0 deletions
diff --git a/vendor/github.com/go-openapi/swag/convert.go b/vendor/github.com/go-openapi/swag/convert.go
new file mode 100644
index 000000000..fc085aeb8
--- /dev/null
+++ b/vendor/github.com/go-openapi/swag/convert.go
@@ -0,0 +1,208 @@
+// Copyright 2015 go-swagger maintainers
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package swag
+
+import (
+	"math"
+	"strconv"
+	"strings"
+)
+
+// same as ECMA Number.MAX_SAFE_INTEGER and Number.MIN_SAFE_INTEGER
+const (
+	maxJSONFloat         = float64(1<<53 - 1)  // 9007199254740991.0 	 	 2^53 - 1
+	minJSONFloat         = -float64(1<<53 - 1) //-9007199254740991.0	-2^53 - 1
+	epsilon      float64 = 1e-9
+)
+
+// IsFloat64AJSONInteger allow for integers [-2^53, 2^53-1] inclusive
+func IsFloat64AJSONInteger(f float64) bool {
+	if math.IsNaN(f) || math.IsInf(f, 0) || f < minJSONFloat || f > maxJSONFloat {
+		return false
+	}
+	fa := math.Abs(f)
+	g := float64(uint64(f))
+	ga := math.Abs(g)
+
+	diff := math.Abs(f - g)
+
+	// more info: https://floating-point-gui.de/errors/comparison/#look-out-for-edge-cases
+	switch {
+	case f == g: // best case
+		return true
+	case f == float64(int64(f)) || f == float64(uint64(f)): // optimistic case
+		return true
+	case f == 0 || g == 0 || diff < math.SmallestNonzeroFloat64: // very close to 0 values
+		return diff < (epsilon * math.SmallestNonzeroFloat64)
+	}
+	// check the relative error
+	return diff/math.Min(fa+ga, math.MaxFloat64) < epsilon
+}
+
+var evaluatesAsTrue map[string]struct{}
+
+func init() {
+	evaluatesAsTrue = map[string]struct{}{
+		"true":     {},
+		"1":        {},
+		"yes":      {},
+		"ok":       {},
+		"y":        {},
+		"on":       {},
+		"selected": {},
+		"checked":  {},
+		"t":        {},
+		"enabled":  {},
+	}
+}
+
+// ConvertBool turn a string into a boolean
+func ConvertBool(str string) (bool, error) {
+	_, ok := evaluatesAsTrue[strings.ToLower(str)]
+	return ok, nil
+}
+
+// ConvertFloat32 turn a string into a float32
+func ConvertFloat32(str string) (float32, error) {
+	f, err := strconv.ParseFloat(str, 32)
+	if err != nil {
+		return 0, err
+	}
+	return float32(f), nil
+}
+
+// ConvertFloat64 turn a string into a float64
+func ConvertFloat64(str string) (float64, error) {
+	return strconv.ParseFloat(str, 64)
+}
+
+// ConvertInt8 turn a string into an int8
+func ConvertInt8(str string) (int8, error) {
+	i, err := strconv.ParseInt(str, 10, 8)
+	if err != nil {
+		return 0, err
+	}
+	return int8(i), nil
+}
+
+// ConvertInt16 turn a string into an int16
+func ConvertInt16(str string) (int16, error) {
+	i, err := strconv.ParseInt(str, 10, 16)
+	if err != nil {
+		return 0, err
+	}
+	return int16(i), nil
+}
+
+// ConvertInt32 turn a string into an int32
+func ConvertInt32(str string) (int32, error) {
+	i, err := strconv.ParseInt(str, 10, 32)
+	if err != nil {
+		return 0, err
+	}
+	return int32(i), nil
+}
+
+// ConvertInt64 turn a string into an int64
+func ConvertInt64(str string) (int64, error) {
+	return strconv.ParseInt(str, 10, 64)
+}
+
+// ConvertUint8 turn a string into an uint8
+func ConvertUint8(str string) (uint8, error) {
+	i, err := strconv.ParseUint(str, 10, 8)
+	if err != nil {
+		return 0, err
+	}
+	return uint8(i), nil
+}
+
+// ConvertUint16 turn a string into an uint16
+func ConvertUint16(str string) (uint16, error) {
+	i, err := strconv.ParseUint(str, 10, 16)
+	if err != nil {
+		return 0, err
+	}
+	return uint16(i), nil
+}
+
+// ConvertUint32 turn a string into an uint32
+func ConvertUint32(str string) (uint32, error) {
+	i, err := strconv.ParseUint(str, 10, 32)
+	if err != nil {
+		return 0, err
+	}
+	return uint32(i), nil
+}
+
+// ConvertUint64 turn a string into an uint64
+func ConvertUint64(str string) (uint64, error) {
+	return strconv.ParseUint(str, 10, 64)
+}
+
+// FormatBool turns a boolean into a string
+func FormatBool(value bool) string {
+	return strconv.FormatBool(value)
+}
+
+// FormatFloat32 turns a float32 into a string
+func FormatFloat32(value float32) string {
+	return strconv.FormatFloat(float64(value), 'f', -1, 32)
+}
+
+// FormatFloat64 turns a float64 into a string
+func FormatFloat64(value float64) string {
+	return strconv.FormatFloat(value, 'f', -1, 64)
+}
+
+// FormatInt8 turns an int8 into a string
+func FormatInt8(value int8) string {
+	return strconv.FormatInt(int64(value), 10)
+}
+
+// FormatInt16 turns an int16 into a string
+func FormatInt16(value int16) string {
+	return strconv.FormatInt(int64(value), 10)
+}
+
+// FormatInt32 turns an int32 into a string
+func FormatInt32(value int32) string {
+	return strconv.Itoa(int(value))
+}
+
+// FormatInt64 turns an int64 into a string
+func FormatInt64(value int64) string {
+	return strconv.FormatInt(value, 10)
+}
+
+// FormatUint8 turns an uint8 into a string
+func FormatUint8(value uint8) string {
+	return strconv.FormatUint(uint64(value), 10)
+}
+
+// FormatUint16 turns an uint16 into a string
+func FormatUint16(value uint16) string {
+	return strconv.FormatUint(uint64(value), 10)
+}
+
+// FormatUint32 turns an uint32 into a string
+func FormatUint32(value uint32) string {
+	return strconv.FormatUint(uint64(value), 10)
+}
+
+// FormatUint64 turns an uint64 into a string
+func FormatUint64(value uint64) string {
+	return strconv.FormatUint(value, 10)
+}