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ServiceStack/src/ServiceStack.Common/JSON.cs at master · csharpbuilder/ServiceStack · GitHub
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JSON.cs
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ServiceStack.Common
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JSON.cs
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using
System
;
using
System
.
Collections
.
Generic
;
using
ServiceStack
.
Templates
;
using
ServiceStack
.
Text
;
using
ServiceStack
.
Text
.
Json
;
namespace
ServiceStack
{
public
static
class
JSON
{
public
static
object
parse
(
string
json
)
{
json
.
AsSpan
(
)
.
ParseJsToken
(
out
var
token
)
;
return
token
.
Evaluate
(
JS
.
CreateScope
(
)
)
;
}
public
static
object
parseSpan
(
ReadOnlySpan
<
char
>
json
)
{
if
(
json
.
Length
==
0
)
return
null
;
var
firstChar
=
json
[
0
]
;
if
(
firstChar
>=
'0'
&&
firstChar
<=
'9'
)
{
try
{
var
longValue
=
MemoryProvider
.
Instance
.
ParseInt64
(
json
)
;
return
longValue
>=
int
.
MinValue
&&
longValue
<=
int
.
MaxValue
?
(
int
)
longValue
:
longValue
;
}
catch
{
}
if
(
json
.
TryParseDouble
(
out
var
doubleValue
)
)
return
doubleValue
;
}
if
(
firstChar
==
'{'
||
firstChar
==
'['
)
{
json
.
ParseJsToken
(
out
var
token
)
;
return
token
.
Evaluate
(
JS
.
CreateScope
(
)
)
;
}
return
json
.
ToString
(
)
;
}
public
static
string
stringify
(
object
value
)
=>
value
.
ToJson
(
)
;
}
public
static
class
JS
{
/// <summary>
/// Configure ServiceStack.Text JSON Serializer to use Templates JS parsing
/// </summary>
public
static
void
Configure
(
)
{
JsonTypeSerializer
.
Instance
.
ObjectDeserializer
=
JSON
.
parseSpan
;
}
public
static
void
UnConfigure
(
)
=>
JsonTypeSerializer
.
Instance
.
ObjectDeserializer
=
null
;
public
static
TemplateScopeContext
CreateScope
(
Dictionary
<
string
,
object
>
args
=
null
,
TemplateFilter
functions
=
null
)
{
var
context
=
new
TemplateContext
(
)
;
if
(
functions
!=
null
)
context
.
TemplateFilters
.
Insert
(
0
,
functions
)
;
context
.
Init
(
)
;
return
new
TemplateScopeContext
(
new
PageResult
(
context
.
OneTimePage
(
""
)
)
,
null
,
args
)
;
}
public
static
object
eval
(
string
js
)
=>
eval
(
js
,
CreateScope
(
)
)
;
public
static
object
eval
(
string
js
,
TemplateScopeContext
scope
)
{
js
.
ParseJsExpression
(
out
var
token
)
;
var
result
=
token
.
Evaluate
(
scope
)
;
return
result
;
}
public
static
JsToken
expression
(
string
js
)
{
js
.
ParseJsExpression
(
out
var
token
)
;
return
token
;
}
}
}
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