amorfo77/json
1
0 Fork 0
mirror of https://github.com/nlohmann/json.git synced 2026-11-02 19:05:35 +00:00
Code Issues Packages Projects Releases Wiki Activity

json_view: exceptions name the path and the bytes of the value (#5974)

Browse Source 
Signed-off-by: Niels Lohmann <mail@nlohmann.me>
This commit is contained in:
Niels Lohmann authored and GitHub committed 2026-11-01 17:25:26 +01:00
1 parent f022e3c59c
commit ddc34f546a
25 files changed
+1600 -696
Download Patch File Download Diff File Expand all files Collapse all files

No files matched your search

include/nlohmann/json_view.hpp
+33 -26
View File
@@ -285,7 +285,7 @@ class basic_json_view
{
return {};
}
detail::view::throw_type_error(detail::exception_id::subscript_wrong_type, "cannot use operator[] with a string argument with ", type_name());
detail::view::throw_type_error(site(), detail::exception_id::subscript_wrong_type, "cannot use operator[] with a string argument with ", type_name());
}
return lookup(key);
}
@@ -311,7 +311,7 @@ class basic_json_view
{
return {};
}
detail::view::throw_type_error(detail::exception_id::subscript_wrong_type, "cannot use operator[] with a numeric argument with ", type_name());
detail::view::throw_type_error(site(), detail::exception_id::subscript_wrong_type, "cannot use operator[] with a numeric argument with ", type_name());
}
return idx < m_node->len ? element(idx) : basic_json_view();
}
@@ -344,12 +344,12 @@ class basic_json_view
{
if (NLOHMANN_VIEW_UNLIKELY(!is_object()))
{
detail::view::throw_type_error(detail::exception_id::at_wrong_type, "cannot use at() with ", type_name());
detail::view::throw_type_error(site(), detail::exception_id::at_wrong_type, "cannot use at() with ", type_name());
}
const basic_json_view r = lookup(key);
if (NLOHMANN_VIEW_UNLIKELY(r.is_discarded()))
{
detail::view::throw_key_not_found(std::string(key.data(), key.size()));
detail::view::throw_key_not_found(site(), std::string(key.data(), key.size()));
}
return r;
}
@@ -370,11 +370,11 @@ class basic_json_view
{
if (NLOHMANN_VIEW_UNLIKELY(!is_array()))
{
detail::view::throw_type_error(detail::exception_id::at_wrong_type, "cannot use at() with ", type_name());
detail::view::throw_type_error(site(), detail::exception_id::at_wrong_type, "cannot use at() with ", type_name());
}
if (NLOHMANN_VIEW_UNLIKELY(idx >= m_node->len))
{
detail::view::throw_array_index_out_of_range(idx);
detail::view::throw_array_index_out_of_range(site(), idx);
}
return element(idx);
}
@@ -402,7 +402,7 @@ class basic_json_view
{
if (NLOHMANN_VIEW_UNLIKELY(!is_object()))
{
detail::view::throw_type_error(detail::exception_id::value_wrong_type, "cannot use value() with ", type_name());
detail::view::throw_type_error(site(), detail::exception_id::value_wrong_type, "cannot use value() with ", type_name());
}
const basic_json_view r = lookup(key);
return r.is_discarded() ? default_value : r.template get<T>();
@@ -412,7 +412,7 @@ class basic_json_view
{
if (NLOHMANN_VIEW_UNLIKELY(!is_object()))
{
detail::view::throw_type_error(detail::exception_id::value_wrong_type, "cannot use value() with ", type_name());
detail::view::throw_type_error(site(), detail::exception_id::value_wrong_type, "cannot use value() with ", type_name());
}
// (the default is made only if there is no such member)
const basic_json_view r = lookup(key);
@@ -427,7 +427,7 @@ class basic_json_view
{
if (NLOHMANN_VIEW_UNLIKELY(!is_structured()))
{
detail::view::throw_type_error(detail::exception_id::value_wrong_type, "cannot use value() with ", type_name());
detail::view::throw_type_error(site(), detail::exception_id::value_wrong_type, "cannot use value() with ", type_name());
}
const basic_json_view r = detail::view::resolve_pointer(*this, detail::json_pointer_access::reference_tokens(ptr), detail::view::pointer_mode::value);
return r.is_discarded() ? default_value : r.template get<T>();
@@ -437,7 +437,7 @@ class basic_json_view
{
if (NLOHMANN_VIEW_UNLIKELY(!is_structured()))
{
detail::view::throw_type_error(detail::exception_id::value_wrong_type, "cannot use value() with ", type_name());
detail::view::throw_type_error(site(), detail::exception_id::value_wrong_type, "cannot use value() with ", type_name());
}
const basic_json_view r = detail::view::resolve_pointer(*this, detail::json_pointer_access::reference_tokens(ptr), detail::view::pointer_mode::value);
return r.is_discarded() ? string_t(default_value) : r.template get<string_t>();
@@ -450,7 +450,7 @@ class basic_json_view
const iterator it = begin();
if (NLOHMANN_VIEW_UNLIKELY(it == end()))
{
detail::view::throw_invalid_iterator(detail::exception_id::iterator_value_unavailable, "cannot get value");
detail::view::throw_invalid_iterator(site(), detail::exception_id::iterator_value_unavailable, "cannot get value");
}
return *it;
}
@@ -606,7 +606,7 @@ class basic_json_view
{
if (NLOHMANN_VIEW_UNLIKELY(!is_string()))
{
detail::view::throw_type_error(detail::exception_id::type_mismatch, "type must be string, but is ", type_name());
detail::view::throw_type_error(site(), detail::exception_id::type_mismatch, "type must be string, but is ", type_name());
}
return {m_doc->str(*m_node), m_node->len};
}
@@ -618,7 +618,7 @@ class basic_json_view
{
if (NLOHMANN_VIEW_UNLIKELY(!is_number()))
{
detail::view::throw_type_error(detail::exception_id::type_mismatch, "type must be number, but is ", type_name());
detail::view::throw_type_error(site(), detail::exception_id::type_mismatch, "type must be number, but is ", type_name());
}
return {m_doc->str(*m_node), detail::view::number_length(*m_node)};
}
@@ -764,12 +764,19 @@ class basic_json_view
template<typename, view_mode> friend class basic_json_view;
template<typename, typename> friend class detail::view::editor;
template<typename, typename> friend class detail::view::view_side;
friend struct detail::view::view_access;
friend iterator;
basic_json_view(const document_data* d, const node* n) noexcept
: m_doc(d), m_node(n)
{}
/// this value as the context of an exception
detail::view::error_site site() const noexcept
{
return {m_doc, m_node};
}
using json_side_t = detail::view::json_side<BasicJsonType, string_view_t>;
static detail::view::view_side<BasicJsonType, basic_json_view> side(const basic_json_view& v) noexcept
@@ -876,7 +883,7 @@ class basic_json_view
{
if (NLOHMANN_VIEW_UNLIKELY(!is_boolean()))
{
detail::view::throw_type_error(detail::exception_id::type_mismatch, "type must be boolean, but is ", type_name());
detail::view::throw_type_error(site(), detail::exception_id::type_mismatch, "type must be boolean, but is ", type_name());
}
return (m_node->flags & detail::view::node_flags::is_true) != 0;
}
@@ -886,7 +893,7 @@ class basic_json_view
{
if (NLOHMANN_VIEW_UNLIKELY(m_node == nullptr))
{
detail::view::throw_type_error(detail::exception_id::type_mismatch, "type must be number, but is ", type_name());
detail::view::throw_type_error(site(), detail::exception_id::type_mismatch, "type must be number, but is ", type_name());
}
return detail::view::arithmetic_value<T, BasicJsonType>(*m_doc, *m_node);
}
@@ -895,7 +902,7 @@ class basic_json_view
{
if (NLOHMANN_VIEW_UNLIKELY(!is_null()))
{
detail::view::throw_type_error(detail::exception_id::type_mismatch, "type must be null, but is ", type_name());
detail::view::throw_type_error(site(), detail::exception_id::type_mismatch, "type must be null, but is ", type_name());
}
return nullptr;
}
@@ -1310,7 +1317,7 @@ class basic_json_document
template<typename I, typename V, typename std::enable_if<detail::view::is_non_bool_integral<I>::value, int>::type = 0>
view_type set(view_type array, I idx, V && value)
{
return editor().set(array, index(idx), std::forward<V>(value));
return editor().set(array, index(array, idx), std::forward<V>(value));
}
/// set the value at a JSON pointer: its parent must exist; an object
@@ -1347,7 +1354,7 @@ class basic_json_document
const std::size_t idx = pointer_index(token);
if (idx >= 0xFFFFFFFFu)
{
detail::view::throw_array_index_out_of_range(idx);
detail::view::throw_array_index_out_of_range(detail::view::site_of(parent), idx);
}
for (std::size_t i = 0; i < idx; ++i)
{
@@ -1381,7 +1388,7 @@ class basic_json_document
template<typename I, typename V, typename std::enable_if<detail::view::is_non_bool_integral<I>::value, int>::type = 0>
view_type insert(view_type array, I idx, V && value)
{
return editor().insert(array, index(idx), std::forward<V>(value));
return editor().insert(array, index(array, idx), std::forward<V>(value));
}
/// remove all members with this key; returns their number
@@ -1394,7 +1401,7 @@ class basic_json_document
template<typename I, typename std::enable_if<detail::view::is_non_bool_integral<I>::value, int>::type = 0>
void erase(view_type array, I idx)
{
editor().erase(array, index(idx));
editor().erase(array, index(array, idx));
}
/// remove the value at a JSON pointer; returns the number of removed
@@ -1428,25 +1435,25 @@ class basic_json_document
return detail::view::editor<BasicJsonType, view_type>(*m_data);
}
/// an index (out_of_range.401 if negative)
/// an index into @a array (out_of_range.401 if negative)
template<typename I>
static std::size_t index(I idx)
static std::size_t index(const view_type& array, I idx)
{
return index(idx, std::is_signed<I> {});
return index(array, idx, std::is_signed<I> {});
}
template<typename I>
static std::size_t index(I idx, std::true_type /*signed*/)
static std::size_t index(const view_type& array, I idx, std::true_type /*signed*/)
{
if (idx < 0)
{
detail::view::throw_array_index_out_of_range(idx);
detail::view::throw_array_index_out_of_range(detail::view::site_of(array), idx);
}
return static_cast<std::size_t>(idx);
}
template<typename I>
static std::size_t index(I idx, std::false_type /*unsigned*/)
static std::size_t index(const view_type& /*array*/, I idx, std::false_type /*unsigned*/)
{
return static_cast<std::size_t>(idx);
}