yushiomote / perde Goto Github PK

Compile error in serde

#[derive(Serialize, Deserialize)]
#[serde(deny_unknown_fields)]
struct A {
    #[serde(flatten, skip_deserializing)]
    f: bool
}

This kind of error happens when the number of virtual fields (fields without skip and flatten) goes 0.

Remaining tests

• example-like simple cases
• multiple formats
• compare with serde
• some attributes
• memory leak etc.
• error cases
  • serialization
    • py-side errors
      • invalid arguments
      • schema vs object mismatch
    • rust-side errors
      • serialization error (unlikely)
  • deserialization
    • py-side
      • invalid arguments
    • rust-side
      • deserialization error (invalid format, type etc)
• test with random data structures -> supposed to be done in a separate project

None of currently-supported serializer doesn't seem to use class name for serialization therefore rename class attribute is not tested yet.

flatten + skip etc.

I'm using python 3.9

The class:

@dataclass
class TcUiMsg:
    Fairvalue: Optional[dict[str, Fv]] = None

Fv is an object.

use perde.json.dumps to dump

out_txt = perde.json.dumps(msg)

got error:
Exception has occurred: TypeError (note: full exception trace is shown but execution is paused at: _run_module_as_main)
invalid argument: cannot get generic type information: typing.Optional[dict]: cannot get generic type information: dict[str, None]: invalid value type in dict: None is not a type

the object can dumps with orjson (orjson dumps to bytes ...)

out_bytes = orjson.dumps(msg)
out_txt = out_bytes.decode("utf-8")

• perde-core as Rust package
• perde-json as Python package
• perde-yaml as Python package
• perde-msgpack as Python package

I'm using trio_websocket and got message in bytes.

orjson support this.
loads function in orjson:
def loads(__obj: Union[bytes, bytearray, str]) -> Any: ...

When trying to pip3 install perde it fails with:

maturin failed
        Caused by: The following metadata fields in `package.metadata.maturin` section of Cargo.toml are removed since maturin 0.14.0: classifier, requires-python, please set them in pyproject.toml as PEP 621 specifies.
      Error running maturin: Command '['maturin', 'pep517', 'write-dist-info', '--metadata-directory', '/tmp/pip-modern-metadata-y8ss37ju', '--interpreter', '/usr/bin/python3']' returned non-zero exit status 1.
      Checking for Rust toolchain....
      Running `maturin pep517 write-dist-info --metadata-directory /tmp/pip-modern-metadata-y8ss37ju --interpreter /usr/bin/python3`