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implemented "move"

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This commit is contained in:
Niels 2016-04-24 17:43:27 +02:00
parent 855cf2307b
commit 09e9f6dcd4
3 changed files with 152 additions and 60 deletions
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75
src/json.hpp
View file

@ -9526,6 +9526,44 @@ basic_json_parser_63:
throw std::domain_error("JSON patch must be an array of objects"); throw std::domain_error("JSON patch must be an array of objects");
} }
const auto operation_add = [&result](json_pointer & ptr,
basic_json & value)
{
const auto last_path = ptr.pop_back();
basic_json& parent = result.at(ptr);
if (parent.is_object())
{
parent[last_path] = value;
}
else if (parent.is_array())
{
if (last_path == "-")
{
parent.push_back(value);
}
else
{
parent.insert(parent.begin() + std::stoi(last_path),
value);
}
}
};
const auto operation_remove = [&result](json_pointer & ptr)
{
const auto last_path = ptr.pop_back();
basic_json& parent = result.at(ptr);
if (parent.is_object())
{
parent.erase(parent.find(last_path));
}
else if (parent.is_array())
{
parent.erase(parent.begin() + std::stoi(last_path));
}
};
for (const auto& val : patch) for (const auto& val : patch)
{ {
if (not val.is_object()) if (not val.is_object())
@ -9560,38 +9598,11 @@ basic_json_parser_63:
throw std::domain_error("'add' operation must have member 'value'"); throw std::domain_error("'add' operation must have member 'value'");
} }
const auto last_path = ptr.pop_back(); operation_add(ptr, it_value->second);
basic_json& parent = result.at(ptr);
if (parent.is_object())
{
parent[last_path] = it_value->second;
}
else if (parent.is_array())
{
if (last_path == "-")
{
parent.push_back(it_value->second);
}
else
{
parent.insert(parent.begin() + std::stoi(last_path),
it_value->second);
}
}
} }
else if (op == "remove") else if (op == "remove")
{ {
const auto last_path = ptr.pop_back(); operation_remove(ptr);
basic_json& parent = result.at(ptr);
if (parent.is_object())
{
parent.erase(parent.find(last_path));
}
else if (parent.is_array())
{
parent.erase(parent.begin() + std::stoi(last_path));
}
} }
else if (op == "replace") else if (op == "replace")
{ {
@ -9610,7 +9621,11 @@ basic_json_parser_63:
} }
const std::string from_path = it_from->second; const std::string from_path = it_from->second;
const json_pointer from_ptr(from_path); json_pointer from_ptr(from_path);
basic_json v = result[from_ptr];
operation_remove(from_ptr);
operation_add(ptr, v);
} }
else if (op == "copy") else if (op == "copy")
{ {

75
src/json.hpp.re2c
View file

@ -8836,6 +8836,44 @@ class basic_json
throw std::domain_error("JSON patch must be an array of objects"); throw std::domain_error("JSON patch must be an array of objects");
} }
const auto operation_add = [&result](json_pointer & ptr,
basic_json & value)
{
const auto last_path = ptr.pop_back();
basic_json& parent = result.at(ptr);
if (parent.is_object())
{
parent[last_path] = value;
}
else if (parent.is_array())
{
if (last_path == "-")
{
parent.push_back(value);
}
else
{
parent.insert(parent.begin() + std::stoi(last_path),
value);
}
}
};
const auto operation_remove = [&result](json_pointer & ptr)
{
const auto last_path = ptr.pop_back();
basic_json& parent = result.at(ptr);
if (parent.is_object())
{
parent.erase(parent.find(last_path));
}
else if (parent.is_array())
{
parent.erase(parent.begin() + std::stoi(last_path));
}
};
for (const auto& val : patch) for (const auto& val : patch)
{ {
if (not val.is_object()) if (not val.is_object())
@ -8870,38 +8908,11 @@ class basic_json
throw std::domain_error("'add' operation must have member 'value'"); throw std::domain_error("'add' operation must have member 'value'");
} }
const auto last_path = ptr.pop_back(); operation_add(ptr, it_value->second);
basic_json& parent = result.at(ptr);
if (parent.is_object())
{
parent[last_path] = it_value->second;
}
else if (parent.is_array())
{
if (last_path == "-")
{
parent.push_back(it_value->second);
}
else
{
parent.insert(parent.begin() + std::stoi(last_path),
it_value->second);
}
}
} }
else if (op == "remove") else if (op == "remove")
{ {
const auto last_path = ptr.pop_back(); operation_remove(ptr);
basic_json& parent = result.at(ptr);
if (parent.is_object())
{
parent.erase(parent.find(last_path));
}
else if (parent.is_array())
{
parent.erase(parent.begin() + std::stoi(last_path));
}
} }
else if (op == "replace") else if (op == "replace")
{ {
@ -8920,7 +8931,11 @@ class basic_json
} }
const std::string from_path = it_from->second; const std::string from_path = it_from->second;
const json_pointer from_ptr(from_path); json_pointer from_ptr(from_path);
basic_json v = result[from_ptr];
operation_remove(from_ptr);
operation_add(ptr, v);
} }
else if (op == "copy") else if (op == "copy")
{ {

62
test/unit.cpp
View file

@ -12521,6 +12521,68 @@ TEST_CASE("JSON patch")
CHECK(doc.apply_patch(patch) == expected); CHECK(doc.apply_patch(patch) == expected);
} }
SECTION("example A.6 - Moving a Value")
{
// An example target JSON document:
json doc = R"(
{
"foo": {
"bar": "baz",
"waldo": "fred"
},
"qux": {
"corge": "grault"
}
}
)"_json;
// A JSON Patch document:
json patch = R"(
[
{ "op": "move", "from": "/foo/waldo", "path": "/qux/thud" }
]
)"_json;
// The resulting JSON document:
json expected = R"(
{
"foo": {
"bar": "baz"
},
"qux": {
"corge": "grault",
"thud": "fred"
}
}
)"_json;
// check if patched value is as expected
CHECK(doc.apply_patch(patch) == expected);
}
SECTION("example A.7 - Moving a Value")
{
// An example target JSON document:
json doc = R"(
{ "foo": [ "all", "grass", "cows", "eat" ] }
)"_json;
// A JSON Patch document:
json patch = R"(
[
{ "op": "move", "from": "/foo/1", "path": "/foo/3" }
]
)"_json;
// The resulting JSON document:
json expected = R"(
{ "foo": [ "all", "cows", "eat", "grass" ] }
)"_json;
// check if patched value is as expected
CHECK(doc.apply_patch(patch) == expected);
}
SECTION("example A.8 - Testing a Value: Success") SECTION("example A.8 - Testing a Value: Success")
{ {
// An example target JSON document: // An example target JSON document: