mox!

vendor/github.com/mjl-/sherpa/intstr.go

@@ -0,0 +1,87 @@
+package sherpa
+
+import (
+	"encoding/json"
+	"fmt"
+	"strconv"
+)
+
+// Int64s is an int64 that can be read as either a JSON string or JSON number, to
+// be used in sherpa function parameters for compatibility with JavaScript.
+// For struct fields, use the "json:,string" struct tag instead.
+type Int64s int64
+
+// Int returns the int64 value.
+func (i Int64s) Int() int64 {
+	return int64(i)
+}
+
+// MarshalJSON returns a JSON-string-encoding of the int64.
+func (i *Int64s) MarshalJSON() ([]byte, error) {
+	var v int64
+	if i != nil {
+		v = int64(*i)
+	}
+	return json.Marshal(fmt.Sprintf("%d", v))
+}
+
+// UnmarshalJSON parses JSON into the int64. Both a string encoding as a number
+// encoding are allowed. JavaScript clients must use the string encoding because
+// the number encoding loses precision at 1<<53.
+func (i *Int64s) UnmarshalJSON(buf []byte) error {
+	var s string
+	if len(buf) > 0 && buf[0] == '"' {
+		err := json.Unmarshal(buf, &s)
+		if err != nil {
+			return err
+		}
+	} else {
+		s = string(buf)
+	}
+	vv, err := strconv.ParseInt(s, 10, 64)
+	if err != nil {
+		return err
+	}
+	*i = Int64s(vv)
+	return nil
+}
+
+// Uint64s is an uint64 that can be read as either a JSON string or JSON number, to
+// be used in sherpa function parameters for compatibility with JavaScript.
+// For struct fields, use the "json:,string" struct tag instead.
+type Uint64s uint64
+
+// Int returns the uint64 value.
+func (i Uint64s) Int() uint64 {
+	return uint64(i)
+}
+
+// MarshalJSON returns a JSON-string-encoding of the uint64.
+func (i *Uint64s) MarshalJSON() ([]byte, error) {
+	var v uint64
+	if i != nil {
+		v = uint64(*i)
+	}
+	return json.Marshal(fmt.Sprintf("%d", v))
+}
+
+// UnmarshalJSON parses JSON into the uint64. Both a string encoding as a number
+// encoding are allowed. JavaScript clients must use the string encoding because
+// the number encoding loses precision at 1<<53.
+func (i *Uint64s) UnmarshalJSON(buf []byte) error {
+	var s string
+	if len(buf) > 0 && buf[0] == '"' {
+		err := json.Unmarshal(buf, &s)
+		if err != nil {
+			return err
+		}
+	} else {
+		s = string(buf)
+	}
+	vv, err := strconv.ParseInt(s, 10, 64)
+	if err != nil {
+		return err
+	}
+	*i = Uint64s(vv)
+	return nil
+}