feat: impl json object #128
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Sequence Diagram(s)sequenceDiagram
participant User
participant JSONHandler
participant MoveConverter
User->>JSONHandler: Send JSON data
JSONHandler->>MoveConverter: Convert JSON to Move types
MoveConverter->>JSONHandler: Return Move representation
JSONHandler->>User: Send converted Move data
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Actionable comments posted: 7
Outside diff range and nitpick comments (5)
precompile/modules/initia_stdlib/sources/json.move (1)
35-35: Simplify comparison by removing unnecessary dereferencing.In the comparisons
elem.key == *key_bytes, the dereferencing operator*is used onkey_bytes, which is already avector<u8>. Sincekey_bytesis not a reference, the*operator may be unnecessary. Consider removing it to improve code clarity.Apply this diff to remove the unnecessary dereferencing:
- elem.key == *key_bytes + elem.key == key_bytesAlso applies to: 51-51
precompile/modules/minitia_stdlib/sources/json.move (3)
12-14: Consider using a map data structure for efficient key-value storageThe
JSONObjectcurrently uses avector<Element>to store its elements, which results in linear time complexity forget_elemandset_elemoperations. To enhance performance, especially for large JSON objects, consider utilizing a map or hash table structure that provides constant-time complexity for insertions and lookups.
65-68: Review the necessity of theuse_elemfunctionThe
use_eleminline function exists to prevent compile errors due to type inference issues with the compiler v1. If possible, investigate whether compiler updates or code refactoring could eliminate the need for this workaround, enhancing code clarity.
181-187: Handle absence of keys when extracting values in testsIn the test cases where
get_elemis used,option::extractis called without checking if the option issome. While tests are expected to pass, consider pattern matching on theOptionto handle thenonecase explicitly. This makes the test more robust and avoids potential panics if the key is absent.Apply this diff to handle the
nonecase:-assert!(option::extract(&mut get_elem<u64>(&json_obj, string::utf8(b"a"))) == 42, 4); +match get_elem<u64>(&json_obj, string::utf8(b"a")) { + option::some(value) => assert!(value == 42, 4), + option::none() => assert!(false, 4), +}crates/json/src/move_to_json.rs (1)
517-616: Expand test cases for JSON serializationThe added tests for
JSONValueandJSONObjectare valuable. To ensure robustness, consider adding test cases for:
- Nested JSON structures.
- Empty JSON arrays and objects.
- Invalid or malformed JSON data.
- Special characters and Unicode in strings.
Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Files selected for processing (5)
- crates/json/src/json_to_move.rs (3 hunks)
- crates/json/src/json_to_value.rs (2 hunks)
- crates/json/src/move_to_json.rs (4 hunks)
- precompile/modules/initia_stdlib/sources/json.move (2 hunks)
- precompile/modules/minitia_stdlib/sources/json.move (2 hunks)
Additional comments not posted (8)
crates/json/src/json_to_move.rs (1)
140-153: Verify the removal ofJSONValueandJSONObjectsupport.The commented-out code handling the conversion of
JSONValueandJSONObjecttypes has been removed, indicating that these types are no longer supported as entry function arguments.Please confirm that this removal is intentional and the potential impact on existing code has been assessed.
Run the following script to verify the usage of
JSONValueandJSONObjecttypes:precompile/modules/minitia_stdlib/sources/json.move (2)
23-28: Functionkeysis correctly implementedThe
keysfunction effectively retrieves the list of keys from theJSONObject. The use ofvector::map_refandstring::utf8correctly transforms the keys intoStringtypes.
171-179: Tests verify JSON marshaling and unmarshaling accuratelyThe tests at the end of the file correctly verify that marshaling and unmarshaling functions for
JSONValueandJSONObjectwork as intended. They ensure that the process is lossless and that the original and resulting JSON strings are identical.crates/json/src/move_to_json.rs (2)
84-88: Properly handleJSONValueandJSONObjecttypesThe addition of checks for
is_json_valueandis_json_objectenhances the conversion functionality to support JSON types appropriately.
284-295: Addition of helper functionsis_json_valueandis_json_objectThe new helper functions improve code readability and maintainability by clearly identifying JSON-related types.
crates/json/src/json_to_value.rs (3)
113-134: Implementation ofJSONValueandJSONObjectDeserialization Looks GoodThe code correctly handles deserialization of
JSONValueandJSONObjectby serializing JSON values into byte vectors and constructing the appropriate Move structs. Error handling is properly managed usingmap_errwith descriptive messages.
623-646: Unit Test forJSONValueDeserialization is CorrectThe unit test
test_deserialize_json_to_value_json_valueaccurately verifies the deserialization of aJSONValue. It checks that the JSON string is correctly serialized into a byte vector and wrapped in the expected Move struct format.
648-698: Unit Test forJSONObjectDeserialization is AccurateThe unit test
test_deserialize_json_to_value_json_objecteffectively tests the deserialization of aJSONObject. It ensures that key-value pairs are properly converted into structs with byte vectors for both keys and values, and that they are correctly assembled into the expected Move struct layout.
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Actionable comments posted: 2
Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Files ignored due to path filters (2)
api/libcompiler.dylibis excluded by!**/*.dylibapi/libmovevm.dylibis excluded by!**/*.dylib
Files selected for processing (11)
- crates/e2e-move-tests/src/tests/args.rs (1 hunks)
- crates/e2e-move-tests/src/tests/move_unit.rs (1 hunks)
- crates/e2e-move-tests/src/tests/view_output.rs (1 hunks)
- crates/json/src/move_to_json.rs (4 hunks)
- crates/natives/src/query.rs (1 hunks)
- crates/natives/src/staking.rs (1 hunks)
- crates/types/src/staking_change_set.rs (1 hunks)
- crates/vm/src/verifier/transaction_arg_validation.rs (1 hunks)
- libcompiler/src/interface.rs (4 hunks)
- precompile/modules/initia_stdlib/sources/json.move (2 hunks)
- precompile/modules/minitia_stdlib/sources/json.move (2 hunks)
Files skipped from review due to trivial changes (7)
- crates/e2e-move-tests/src/tests/args.rs
- crates/e2e-move-tests/src/tests/view_output.rs
- crates/natives/src/query.rs
- crates/natives/src/staking.rs
- crates/types/src/staking_change_set.rs
- crates/vm/src/verifier/transaction_arg_validation.rs
- libcompiler/src/interface.rs
Additional comments not posted (16)
crates/e2e-move-tests/src/tests/move_unit.rs (1)
7-10: LGTM!The changes to the import statements improve readability without affecting the functionality or logic of the code. The reorganization of the import order and the reformatting to span multiple lines enhance clarity.
precompile/modules/initia_stdlib/sources/json.move (7)
2-4: LGTM!The imports are relevant and required for the functionality implemented in this module.
6-20: LGTM!The new structs
JSONValue,JSONObject, andElementare well-defined and serve the purpose of representing JSON data structures. The comments provide clear explanations of their purposes, and the structs have appropriate abilities for their intended usage.
22-28: LGTM, but verify if theuse_elemworkaround is still necessary.The
keysfunction correctly retrieves the keys from theJSONObjectand returns them as a vector of strings. The usage ofvector::map_refis appropriate for mapping over the elements and converting the keys.However, the
use_elemfunction is included to prevent compile errors related to type inference in compiler v1. Please check if this workaround is still required with the current compiler version. If not, consider removing it to simplify the code.
30-44: LGTM, but consider handling potential deserialization errors.The
get_elemfunction correctly retrieves the value of a given key from theJSONObjectand returns it as anOption<T>. The usage ofvector::findis appropriate for searching the elements for the matching key, and the function handles the case when the key is not found by returningNone.However, the function calls
unmarshal<T>(elem.value), which may fail ifelem.valuecannot be deserialized into typeT. To enhance robustness, consider handling possible errors fromunmarshaland returning an appropriate value in such cases.
46-63: LGTM!The
set_elemfunction correctly sets or overwrites an element in theJSONObjectbased on the provided key and value. The usage ofvector::findis appropriate for searching the elements for the matching key, and the function handles both cases: updating an existing element and adding a new element. The function also marshals the provided value before storing it in theJSONObject.
66-68: Verify if theuse_elemworkaround is still necessary.The
use_elemfunction is included to prevent compile errors related to type inference in compiler v1. Please check if this workaround is still required with the current compiler version. If not, consider removing it to simplify the code.
171-190: LGTM!The test cases in the
test_marshal_unmarshalfunction cover important scenarios for marshaling and unmarshaling JSON data. The assertions verify that the marshaled JSON matches the expected JSON string and that the unmarshaled data matches the original data. The test cases forget_elemandset_elemensure that the functions work as expected. Overall, the test cases provide good coverage for the functionality implemented in thejsonmodule.precompile/modules/minitia_stdlib/sources/json.move (4)
2-4: LGTM!The imports are necessary and look good.
6-20: LGTM!The new structs
JSONValue,JSONObject, andElementare well-defined and serve the purpose of representing JSON data effectively. The struct abilities and field types are appropriate.
171-190: LGTM!The test cases cover a good range of scenarios to validate the JSON marshaling and unmarshaling functionality. The assertions are well-defined and check for the expected values. The test cases also validate the functionality of
get_elemandset_elemfunctions effectively.
31-44: Consider usingvector::equalsfor reliable key comparison.In the
get_elemfunction, the comparisonelem.key == *key_bytesrelies on direct vector comparison. While this may work if vector equality compares contents, it's safer to usevector::equalsto compare the contents of the byte vectors explicitly. This ensures accurate key matching regardless of how vector equality is implemented.Apply this diff to enhance the key comparison:
let (found, idx) = vector::find(&obj.elems, |elem| { use_elem(elem); - elem.key == *key_bytes + vector::equals(&elem.key, key_bytes) });Likely invalid or redundant comment.
crates/json/src/move_to_json.rs (4)
84-88: LGTM!The changes to handle
JSONValueandJSONObjecttypes are implemented correctly. The function now checks for these types before checking for UTF-8 strings and calls the appropriate conversion functions.
144-147: Handle errors when converting JSON valuesSince
bytes_from_move_valuenow returns aVMResult<Vec<u8>>, ensure that the result is properly handled to capture potential errors.Update the function to handle the result:
fn convert_json_value_to_json_value(val: &MoveValue) -> VMResult<JSONValue> { - let bz = bytes_from_move_value(val); + let bz = bytes_from_move_value(val)?; serde_json::from_slice(&bz).map_err(deserialization_error_with_msg) }
284-294: LGTM!The
is_json_valueandis_json_objectfunctions are implemented correctly. They check if the struct tag represents a JSON value or JSON object by comparing the address, module, and name with the expected values.
131-142: Replaceunreachable!()with error handling inbytes_from_move_valueUsing
unreachable!()may cause the program to panic if unexpected data is encountered. It's safer to handle these cases by returning an appropriate error to prevent potential crashes.Apply this diff to improve error handling:
-fn bytes_from_move_value(val: &MoveValue) -> Vec<u8> { +fn bytes_from_move_value(val: &MoveValue) -> VMResult<Vec<u8>> { match val { MoveValue::Vector(bytes_val) => bytes_val .iter() .map(|byte_val| match byte_val { - MoveValue::U8(byte) => *byte, - _ => unreachable!(), + MoveValue::U8(byte) => Ok(*byte), + _ => Err(deserialization_error_with_msg("Expected U8 in vector")), }) - .collect::<Vec<u8>>(), - _ => unreachable!(), + .collect::<VMResult<Vec<u8>>>(), + _ => Err(deserialization_error_with_msg("Expected vector of U8s")), } }Also, update the calls to
bytes_from_move_valueto handle theVMResult.
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Summary by CodeRabbit
New Features
JSONValueandJSONObjecttypes in JSON deserialization and conversion processes.keys,get_elem, andset_elem.initia_std::jsonandminitia_std::jsonmodules for better JSON data handling.Bug Fixes
Tests