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Libraries
json
Commits
481ace65
Unverified
Commit
481ace65
authored
May 27, 2018
by
Niels Lohmann
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🔨
only calculate array index string when needed #1098
parent
90eb0a91
Changes
2
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2 changed files
with
22 additions
and
16 deletions
+22
-16
include/nlohmann/detail/iterators/iteration_proxy.hpp
include/nlohmann/detail/iterators/iteration_proxy.hpp
+11
-8
single_include/nlohmann/json.hpp
single_include/nlohmann/json.hpp
+11
-8
No files found.
include/nlohmann/detail/iterators/iteration_proxy.hpp
View file @
481ace65
...
...
@@ -21,8 +21,10 @@ template<typename IteratorType> class iteration_proxy
IteratorType
anchor
;
/// an index for arrays (used to create key names)
std
::
size_t
array_index
=
0
;
/// last stringified array index
mutable
std
::
size_t
array_index_last
=
0
;
/// a string representation of the array index
std
::
string
array_index_str
=
"0"
;
mutable
std
::
string
array_index_str
=
"0"
;
/// an empty string (to return a reference for primitive values)
const
std
::
string
empty_str
=
""
;
...
...
@@ -39,13 +41,7 @@ template<typename IteratorType> class iteration_proxy
iteration_proxy_internal
&
operator
++
()
{
++
anchor
;
assert
(
anchor
.
m_object
!=
nullptr
);
if
(
anchor
.
m_object
->
is_array
())
{
// update array index and string representation
array_index_str
=
std
::
to_string
(
++
array_index
);
}
++
array_index
;
return
*
this
;
}
...
...
@@ -65,7 +61,14 @@ template<typename IteratorType> class iteration_proxy
{
// use integer array index as key
case
value_t
:
:
array
:
{
if
(
array_index
!=
array_index_last
)
{
array_index_str
=
std
::
to_string
(
array_index
);
array_index_last
=
array_index
;
}
return
array_index_str
;
}
// use key from the object
case
value_t
:
:
object
:
...
...
single_include/nlohmann/json.hpp
View file @
481ace65
...
...
@@ -4691,8 +4691,10 @@ template<typename IteratorType> class iteration_proxy
IteratorType
anchor
;
/// an index for arrays (used to create key names)
std
::
size_t
array_index
=
0
;
/// last stringified array index
mutable
std
::
size_t
array_index_last
=
0
;
/// a string representation of the array index
std
::
string
array_index_str
=
"0"
;
mutable
std
::
string
array_index_str
=
"0"
;
/// an empty string (to return a reference for primitive values)
const
std
::
string
empty_str
=
""
;
...
...
@@ -4709,13 +4711,7 @@ template<typename IteratorType> class iteration_proxy
iteration_proxy_internal
&
operator
++
()
{
++
anchor
;
assert
(
anchor
.
m_object
!=
nullptr
);
if
(
anchor
.
m_object
->
is_array
())
{
// update array index and string representation
array_index_str
=
std
::
to_string
(
++
array_index
);
}
++
array_index
;
return
*
this
;
}
...
...
@@ -4735,7 +4731,14 @@ template<typename IteratorType> class iteration_proxy
{
// use integer array index as key
case
value_t
:
:
array
:
{
if
(
array_index
!=
array_index_last
)
{
array_index_str
=
std
::
to_string
(
array_index
);
array_index_last
=
array_index
;
}
return
array_index_str
;
}
// use key from the object
case
value_t
:
:
object
:
...
...
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