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♻️ simplify code

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This commit is contained in:
Niels Lohmann
2021-01-10 15:04:14 +01:00
parent 1d6ba22f15
commit 9d0150c234
2 changed files with 118 additions and 244 deletions
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181
include/nlohmann/json.hpp
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@ -1242,6 +1242,47 @@ class basic_json
JSON_ASSERT(m_type != value_t::binary || m_value.binary != nullptr);
}
reference set_parent(reference j, bool recursive)
{
#if JSON_DIAGNOSTICS
if (recursive)
{
switch (m_type)
{
case value_t::array:
{
for (auto& element : *m_value.array)
{
element.m_parent = this;
}
break;
}
case value_t::object:
{
for (auto& element : *m_value.object)
{
element.second.m_parent = this;
}
break;
}
default:
break;
}
}
else
{
j.m_parent = this;
}
#else
static_cast<void>(j);
static_cast<void>(recursive);
#endif
return j;
}
public:
//////////////////////////
// JSON parser callback //
@ -1651,12 +1692,7 @@ class basic_json
auto res = m_value.object->emplace(
std::move(*((*element.m_value.array)[0].m_value.string)),
std::move((*element.m_value.array)[1]));
#if JSON_DIAGNOSTICS
res.first->second.m_parent = this;
#else
static_cast<void>(res); // unused variable - fix warning
#endif
set_parent(res.first->second, false);
}
}
else
@ -1664,12 +1700,7 @@ class basic_json
// the initializer list describes an array -> create array
m_type = value_t::array;
m_value.array = create<array_t>(init.begin(), init.end());
#if JSON_DIAGNOSTICS
for (auto& element : *m_value.array)
{
element.m_parent = this;
}
#endif
set_parent(*this, true);
}
assert_invariant();
@ -1881,12 +1912,7 @@ class basic_json
: m_type(value_t::array)
{
m_value.array = create<array_t>(cnt, val);
#if JSON_DIAGNOSTICS
for (auto& element : *m_value.array)
{
element.m_parent = this;
}
#endif
set_parent(*this, true);
assert_invariant();
}
@ -2019,12 +2045,7 @@ class basic_json
{
m_value.object = create<object_t>(first.m_it.object_iterator,
last.m_it.object_iterator);
#if JSON_DIAGNOSTICS
for (auto& element : *m_value.object)
{
element.second.m_parent = this;
}
#endif
set_parent(*this, true);
break;
}
@ -2032,12 +2053,7 @@ class basic_json
{
m_value.array = create<array_t>(first.m_it.array_iterator,
last.m_it.array_iterator);
#if JSON_DIAGNOSTICS
for (auto& element : *m_value.array)
{
element.m_parent = this;
}
#endif
set_parent(*this, true);
break;
}
@ -2100,24 +2116,14 @@ class basic_json
case value_t::object:
{
m_value = *other.m_value.object;
#if JSON_DIAGNOSTICS
for (auto& element : *m_value.object)
{
element.second.m_parent = this;
}
#endif
set_parent(*this, true);
break;
}
case value_t::array:
{
m_value = *other.m_value.array;
#if JSON_DIAGNOSTICS
for (auto& element : *m_value.array)
{
element.m_parent = this;
}
#endif
set_parent(*this, true);
break;
}
@ -2201,32 +2207,7 @@ class basic_json
other.m_type = value_t::null;
other.m_value = {};
#if JSON_DIAGNOSTICS
switch (m_type)
{
case value_t::array:
{
for (auto& element : *m_value.array)
{
element.m_parent = this;
}
break;
}
case value_t::object:
{
for (auto& element : *m_value.object)
{
element.second.m_parent = this;
}
break;
}
default:
break;
}
#endif
set_parent(*this, true);
assert_invariant();
}
@ -3391,13 +3372,7 @@ class basic_json
{
JSON_TRY
{
#if JSON_DIAGNOSTICS
reference result = m_value.array->at(idx);
result.m_parent = this;
return result;
#else
return m_value.array->at(idx);
#endif
return set_parent(m_value.array->at(idx), false);
}
JSON_CATCH (std::out_of_range&)
{
@ -3495,13 +3470,7 @@ class basic_json
{
JSON_TRY
{
#if JSON_DIAGNOSTICS
reference result = m_value.object->at(key);
result.m_parent = this;
return result;
#else
return m_value.object->at(key);
#endif
return set_parent(m_value.object->at(key), false);
}
JSON_CATCH (std::out_of_range&)
{
@ -3699,13 +3668,7 @@ class basic_json
// operator[] only works for objects
if (JSON_HEDLEY_LIKELY(is_object()))
{
#if JSON_DIAGNOSTICS
reference result = m_value.object->operator[](key);
result.m_parent = this;
return result;
#else
return m_value.object->operator[](key);
#endif
return set_parent(m_value.object->operator[](key), false);
}
JSON_THROW(type_error::create(305, "cannot use operator[] with a string argument with " + std::string(type_name()), diagnostics_t(*this)));
@ -3795,13 +3758,7 @@ class basic_json
// at only works for objects
if (JSON_HEDLEY_LIKELY(is_object()))
{
#if JSON_DIAGNOSTICS
reference result = m_value.object->operator[](key);
result.m_parent = this;
return result;
#else
return m_value.object->operator[](key);
#endif
return set_parent(m_value.object->operator[](key), false);
}
JSON_THROW(type_error::create(305, "cannot use operator[] with a string argument with " + std::string(type_name()), diagnostics_t(*this)));
@ -5357,9 +5314,7 @@ class basic_json
// add element to array (move semantics)
m_value.array->push_back(std::move(val));
#if JSON_DIAGNOSTICS
m_value.array->back().m_parent = this;
#endif
set_parent(m_value.array->back(), false);
// if val is moved from, basic_json move constructor marks it null so we do not call the destructor
}
@ -5395,9 +5350,7 @@ class basic_json
// add element to array
m_value.array->push_back(val);
#if JSON_DIAGNOSTICS
m_value.array->back().m_parent = this;
#endif
set_parent(m_value.array->back(), false);
}
/*!
@ -5447,12 +5400,8 @@ class basic_json
}
// add element to object
#if JSON_DIAGNOSTICS
auto res = m_value.object->insert(val);
res.first->second.m_parent = this;
#else
m_value.object->insert(val);
#endif
set_parent(res.first->second, false);
}
/*!
@ -5556,19 +5505,10 @@ class basic_json
// add element to array (perfect forwarding)
#ifdef JSON_HAS_CPP_17
#if JSON_DIAGNOSTICS
reference result = m_value.array->emplace_back(std::forward<Args>(args)...);
result.m_parent = this;
return result;
#else
return m_value.array->emplace_back(std::forward<Args>(args)...);
#endif
return set_parent(m_value.array->emplace_back(std::forward<Args>(args)...), false);
#else
m_value.array->emplace_back(std::forward<Args>(args)...);
#if JSON_DIAGNOSTICS
m_value.array->back().m_parent = this;
#endif
return m_value.array->back();
return set_parent(m_value.array->back(), false);
#endif
}
@ -5618,10 +5558,7 @@ class basic_json
// add element to array (perfect forwarding)
auto res = m_value.object->emplace(std::forward<Args>(args)...);
#if JSON_DIAGNOSTICS
res.first->second.m_parent = this;
#endif
set_parent(res.first->second, false);
// create result iterator and set iterator to the result of emplace
auto it = begin();