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JavaScript/archive/code/node_modules/assert-plus/assert.js at main · rsdmitry/JavaScript · GitHub
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assert.js
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// Copyright (c) 2012, Mark Cavage. All rights reserved.
// Copyright 2015 Joyent, Inc.
var
assert
=
require
(
'assert'
)
;
var
Stream
=
require
(
'stream'
)
.
Stream
;
var
util
=
require
(
'util'
)
;
///--- Globals
/* JSSTYLED */
var
UUID_REGEXP
=
/
^
[
a
-
f
A
-
F
0
-
9
]
{
8
}
-
[
a
-
f
A
-
F
0
-
9
]
{
4
}
-
[
a
-
f
A
-
F
0
-
9
]
{
4
}
-
[
a
-
f
A
-
F
0
-
9
]
{
4
}
-
[
a
-
f
A
-
F
0
-
9
]
{
12
}
$
/
;
///--- Internal
function
_capitalize
(
str
)
{
return
(
str
.
charAt
(
0
)
.
toUpperCase
(
)
+
str
.
slice
(
1
)
)
;
}
function
_toss
(
name
,
expected
,
oper
,
arg
,
actual
)
{
throw
new
assert
.
AssertionError
(
{
message
:
util
.
format
(
'%s (%s) is required'
,
name
,
expected
)
,
actual
:
(
actual
===
undefined
)
?
typeof
(
arg
)
:
actual
(
arg
)
,
expected
:
expected
,
operator
:
oper
||
'==='
,
stackStartFunction
:
_toss
.
caller
}
)
;
}
function
_getClass
(
arg
)
{
return
(
Object
.
prototype
.
toString
.
call
(
arg
)
.
slice
(
8
,
-
1
)
)
;
}
function
noop
(
)
{
// Why even bother with asserts?
}
///--- Exports
var
types
=
{
bool
:
{
check
:
function
(
arg
)
{
return
typeof
(
arg
)
===
'boolean'
;
}
}
,
func
:
{
check
:
function
(
arg
)
{
return
typeof
(
arg
)
===
'function'
;
}
}
,
string
:
{
check
:
function
(
arg
)
{
return
typeof
(
arg
)
===
'string'
;
}
}
,
object
:
{
check
:
function
(
arg
)
{
return
typeof
(
arg
)
===
'object'
&&
arg
!==
null
;
}
}
,
number
:
{
check
:
function
(
arg
)
{
return
typeof
(
arg
)
===
'number'
&&
!
isNaN
(
arg
)
;
}
}
,
finite
:
{
check
:
function
(
arg
)
{
return
typeof
(
arg
)
===
'number'
&&
!
isNaN
(
arg
)
&&
isFinite
(
arg
)
;
}
}
,
buffer
:
{
check
:
function
(
arg
)
{
return
Buffer
.
isBuffer
(
arg
)
;
}
,
operator
:
'Buffer.isBuffer'
}
,
array
:
{
check
:
function
(
arg
)
{
return
Array
.
isArray
(
arg
)
;
}
,
operator
:
'Array.isArray'
}
,
stream
:
{
check
:
function
(
arg
)
{
return
arg
instanceof
Stream
;
}
,
operator
:
'instanceof'
,
actual
:
_getClass
}
,
date
:
{
check
:
function
(
arg
)
{
return
arg
instanceof
Date
;
}
,
operator
:
'instanceof'
,
actual
:
_getClass
}
,
regexp
:
{
check
:
function
(
arg
)
{
return
arg
instanceof
RegExp
;
}
,
operator
:
'instanceof'
,
actual
:
_getClass
}
,
uuid
:
{
check
:
function
(
arg
)
{
return
typeof
(
arg
)
===
'string'
&&
UUID_REGEXP
.
test
(
arg
)
;
}
,
operator
:
'isUUID'
}
}
;
function
_setExports
(
ndebug
)
{
var
keys
=
Object
.
keys
(
types
)
;
var
out
;
/* re-export standard assert */
if
(
process
.
env
.
NODE_NDEBUG
)
{
out
=
noop
;
}
else
{
out
=
function
(
arg
,
msg
)
{
if
(
!
arg
)
{
_toss
(
msg
,
'true'
,
arg
)
;
}
}
;
}
/* standard checks */
keys
.
forEach
(
function
(
k
)
{
if
(
ndebug
)
{
out
[
k
]
=
noop
;
return
;
}
var
type
=
types
[
k
]
;
out
[
k
]
=
function
(
arg
,
msg
)
{
if
(
!
type
.
check
(
arg
)
)
{
_toss
(
msg
,
k
,
type
.
operator
,
arg
,
type
.
actual
)
;
}
}
;
}
)
;
/* optional checks */
keys
.
forEach
(
function
(
k
)
{
var
name
=
'optional'
+
_capitalize
(
k
)
;
if
(
ndebug
)
{
out
[
name
]
=
noop
;
return
;
}
var
type
=
types
[
k
]
;
out
[
name
]
=
function
(
arg
,
msg
)
{
if
(
arg
===
undefined
||
arg
===
null
)
{
return
;
}
if
(
!
type
.
check
(
arg
)
)
{
_toss
(
msg
,
k
,
type
.
operator
,
arg
,
type
.
actual
)
;
}
}
;
}
)
;
/* arrayOf checks */
keys
.
forEach
(
function
(
k
)
{
var
name
=
'arrayOf'
+
_capitalize
(
k
)
;
if
(
ndebug
)
{
out
[
name
]
=
noop
;
return
;
}
var
type
=
types
[
k
]
;
var
expected
=
'['
+
k
+
']'
;
out
[
name
]
=
function
(
arg
,
msg
)
{
if
(
!
Array
.
isArray
(
arg
)
)
{
_toss
(
msg
,
expected
,
type
.
operator
,
arg
,
type
.
actual
)
;
}
var
i
;
for
(
i
=
0
;
i
<
arg
.
length
;
i
++
)
{
if
(
!
type
.
check
(
arg
[
i
]
)
)
{
_toss
(
msg
,
expected
,
type
.
operator
,
arg
,
type
.
actual
)
;
}
}
}
;
}
)
;
/* optionalArrayOf checks */
keys
.
forEach
(
function
(
k
)
{
var
name
=
'optionalArrayOf'
+
_capitalize
(
k
)
;
if
(
ndebug
)
{
out
[
name
]
=
noop
;
return
;
}
var
type
=
types
[
k
]
;
var
expected
=
'['
+
k
+
']'
;
out
[
name
]
=
function
(
arg
,
msg
)
{
if
(
arg
===
undefined
||
arg
===
null
)
{
return
;
}
if
(
!
Array
.
isArray
(
arg
)
)
{
_toss
(
msg
,
expected
,
type
.
operator
,
arg
,
type
.
actual
)
;
}
var
i
;
for
(
i
=
0
;
i
<
arg
.
length
;
i
++
)
{
if
(
!
type
.
check
(
arg
[
i
]
)
)
{
_toss
(
msg
,
expected
,
type
.
operator
,
arg
,
type
.
actual
)
;
}
}
}
;
}
)
;
/* re-export built-in assertions */
Object
.
keys
(
assert
)
.
forEach
(
function
(
k
)
{
if
(
k
===
'AssertionError'
)
{
out
[
k
]
=
assert
[
k
]
;
return
;
}
if
(
ndebug
)
{
out
[
k
]
=
noop
;
return
;
}
out
[
k
]
=
assert
[
k
]
;
}
)
;
/* export ourselves (for unit tests _only_) */
out
.
_setExports
=
_setExports
;
return
out
;
}
module
.
exports
=
_setExports
(
process
.
env
.
NODE_NDEBUG
)
;
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