1 // Copyright 2018 Frank Schroeder. 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 package properties

     6 

     7 import (

     8 	"fmt"

     9 	"math"

    10 )

    11 

    12 // make this a var to overwrite it in a test

    13 var is32Bit = ^uint(0) == math.MaxUint32

    14 

    15 // intRangeCheck checks if the value fits into the int type and

    16 // panics if it does not.

    17 func intRangeCheck(key string, v int64) int {

    18 	if is32Bit && (v < math.MinInt32 || v > math.MaxInt32) {

    19 		panic(fmt.Sprintf("Value %d for key %s out of range", v, key))

    20 	}

    21 	return int(v)

    22 }

    23 

    24 // uintRangeCheck checks if the value fits into the uint type and

    25 // panics if it does not.

    26 func uintRangeCheck(key string, v uint64) uint {

    27 	if is32Bit && v > math.MaxUint32 {

    28 		panic(fmt.Sprintf("Value %d for key %s out of range", v, key))

    29 	}

    30 	return uint(v)

    31 }