|  | // Copyright 2017 Frank Schroeder. All rights reserved. | 
|  | // Use of this source code is governed by a BSD-style | 
|  | // license that can be found in the LICENSE file. | 
|  |  | 
|  | package properties | 
|  |  | 
|  | import ( | 
|  | "fmt" | 
|  | "math" | 
|  | ) | 
|  |  | 
|  | // make this a var to overwrite it in a test | 
|  | var is32Bit = ^uint(0) == math.MaxUint32 | 
|  |  | 
|  | // intRangeCheck checks if the value fits into the int type and | 
|  | // panics if it does not. | 
|  | func intRangeCheck(key string, v int64) int { | 
|  | if is32Bit && (v < math.MinInt32 || v > math.MaxInt32) { | 
|  | panic(fmt.Sprintf("Value %d for key %s out of range", v, key)) | 
|  | } | 
|  | return int(v) | 
|  | } | 
|  |  | 
|  | // uintRangeCheck checks if the value fits into the uint type and | 
|  | // panics if it does not. | 
|  | func uintRangeCheck(key string, v uint64) uint { | 
|  | if is32Bit && v > math.MaxUint32 { | 
|  | panic(fmt.Sprintf("Value %d for key %s out of range", v, key)) | 
|  | } | 
|  | return uint(v) | 
|  | } |