polywrap_wasm.wasm_package module

This module contains the WasmPackage type for loading a Wasm package.

class polywrap_wasm.wasm_package.WasmPackage(file_reader: FileReader, manifest: bytes | WrapManifest | None = None, wasm_module: bytes | None = None)[source]

Bases: WrapPackage

WasmPackage implements the WRAP package protocol for a Wasm WRAP package.

Parameters:

  • file_reader (FileReader) – The file reader used to read the package files.

  • manifest (Optional[Union[bytes, AnyWrapManifest]]) – The manifest of the wrapper.

  • wasm_module (Optional[bytes]) – The Wasm module file of the wrapper.

create_wrapper() → Wrapper[source]

Create a new WasmWrapper instance.

Returns:

The Wasm wrapper instance.

Return type:

WasmWrapper

Raises:

  • OSError – If the wasm module or manifest could not be read due to system errors.

  • MsgpackDecodeError – If the encoded manifest fails to decode.

  • ManifestError – If the manifest is not valid.

file_reader: FileReader
get_manifest(options: DeserializeManifestOptions | None = None) → WrapManifest[source]

Get the manifest of the wrapper.

Parameters:

options (Optional[DeserializeManifestOptions]) – The options to use when getting the manifest.

Returns:

The manifest of the wrapper.

Return type:

AnyWrapManifest

Raises:

  • OSError – If the manifest file could not be read due to system errors.

  • MsgpackDecodeError – If the encoded manifest fails to decode.

  • ManifestError – If the manifest is not valid.

get_wasm_module() → bytes[source]

Get the Wasm module of the wrapper if it exists or return an error.

Raises:

OSError – If the wasm module file could not be read due to system errors.

Returns:

The Wasm module of the wrapper or an error.

manifest: bytes | WrapManifest | None
wasm_module: bytes | None