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fixed #45 (added count function for keys in objects)

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This commit is contained in:
Niels 2015-03-22 19:07:43 +01:00
parent cf829ac2e8
commit f2957dc3bf
4 changed files with 94 additions and 3 deletions
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2
Makefile
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@ -3,7 +3,7 @@ RE2C = re2c
SED = gsed SED = gsed
# additional flags # additional flags
FLAGS = -Wall -Wextra -pedantic -Weffc++ -Wcast-align -Wcast-qual -Wctor-dtor-privacy -Wdisabled-optimization -Wformat=2 -Winit-self -Wmissing-declarations -Wmissing-include-dirs -Wold-style-cast -Woverloaded-virtual -Wredundant-decls -Wshadow -Wsign-conversion -Wsign-promo -Wstrict-overflow=5 -Wswitch -Wundef -Wno-unused -Wnon-virtual-dtor -Wreorder FLAGS = -Wall -Wextra -pedantic -Weffc++ -Wcast-align -Wcast-qual -Wctor-dtor-privacy -Wdisabled-optimization -Wformat=2 -Winit-self -Wmissing-declarations -Wmissing-include-dirs -Wold-style-cast -Woverloaded-virtual -Wredundant-decls -Wshadow -Wsign-conversion -Wsign-promo -Wstrict-overflow=5 -Wswitch -Wundef -Wno-unused -Wnon-virtual-dtor -Wreorder -Wdeprecated
all: json_unit all: json_unit

8
src/json.hpp
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@ -1049,7 +1049,6 @@ class basic_json
return m_value.object->operator[](key); return m_value.object->operator[](key);
} }
/// find an element in an object /// find an element in an object
inline iterator find(typename object_t::key_type key) inline iterator find(typename object_t::key_type key)
{ {
@ -1076,6 +1075,13 @@ class basic_json
return result; return result;
} }
/// returns the number of occurrences of a key in an object
inline size_type count(typename object_t::key_type key) const
{
// return 0 for all nonobject types
return (m_type == value_t::object) ? m_value.object->count(key) : 0;
}
/////////////// ///////////////
// iterators // // iterators //

8
src/json.hpp.re2c
View File

@ -1049,7 +1049,6 @@ class basic_json
return m_value.object->operator[](key); return m_value.object->operator[](key);
} }
/// find an element in an object /// find an element in an object
inline iterator find(typename object_t::key_type key) inline iterator find(typename object_t::key_type key)
{ {
@ -1076,6 +1075,13 @@ class basic_json
return result; return result;
} }
/// returns the number of occurrences of a key in an object
inline size_type count(typename object_t::key_type key) const
{
// return 0 for all nonobject types
return (m_type == value_t::object) ? m_value.object->count(key) : 0;
}
/////////////// ///////////////
// iterators // // iterators //

79
test/unit.cpp
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@ -2441,6 +2441,85 @@ TEST_CASE("element access")
} }
} }
} }
SECTION("count keys in an object")
{
SECTION("existing element")
{
for (auto key :
{"integer", "floating", "null", "string", "boolean", "object", "array"
})
{
CHECK(j.count(key) == 1);
CHECK(j_const.count(key) == 1);
}
}
SECTION("nonexisting element")
{
CHECK(j.count("foo") == 0);
CHECK(j_const.count("foo") == 0);
}
SECTION("all types")
{
SECTION("null")
{
json j_nonobject(json::value_t::null);
const json j_nonobject_const(j_nonobject);
CHECK(j_nonobject.count("foo") == 0);
CHECK(j_nonobject_const.count("foo") == 0);
}
SECTION("string")
{
json j_nonobject(json::value_t::string);
const json j_nonobject_const(j_nonobject);
CHECK(j_nonobject.count("foo") == 0);
CHECK(j_nonobject_const.count("foo") == 0);
}
SECTION("object")
{
json j_nonobject(json::value_t::object);
const json j_nonobject_const(j_nonobject);
CHECK(j_nonobject.count("foo") == 0);
CHECK(j_nonobject_const.count("foo") == 0);
}
SECTION("array")
{
json j_nonobject(json::value_t::array);
const json j_nonobject_const(j_nonobject);
CHECK(j_nonobject.count("foo") == 0);
CHECK(j_nonobject_const.count("foo") == 0);
}
SECTION("boolean")
{
json j_nonobject(json::value_t::boolean);
const json j_nonobject_const(j_nonobject);
CHECK(j_nonobject.count("foo") == 0);
CHECK(j_nonobject_const.count("foo") == 0);
}
SECTION("number (integer)")
{
json j_nonobject(json::value_t::number_integer);
const json j_nonobject_const(j_nonobject);
CHECK(j_nonobject.count("foo") == 0);
CHECK(j_nonobject_const.count("foo") == 0);
}
SECTION("number (floating-point)")
{
json j_nonobject(json::value_t::number_float);
const json j_nonobject_const(j_nonobject);
CHECK(j_nonobject.count("foo") == 0);
CHECK(j_nonobject_const.count("foo") == 0);
}
}
}
} }
} }