Struct Environment 

pub struct Environment { /* private fields */ }

Contains state and host platform interfaces shared by all MeTTa runners. This includes config settings and logger

Generally there will be only one environment object needed, and it can be accessed by calling the Self::common_env method

Implementations

impl Environment

pub fn common_env() -> &'static Self

Returns a reference to the shared common Environment

pub fn config_dir(&self) -> Option<&Path>

Returns the Path to the config dir, in an OS-specific location

pub fn caches_dir(&self) -> Option<&Path>

Returns the Path to a directory where the MeTTa runner can put persistent caches

NOTE: The default location of the caches_dir dir is within cfg_dir, but if may be overridden with EnvBuilder::set_caches_dir.

pub fn working_dir(&self) -> Option<&Path>

Returns the Path to the environment’s working_dir

NOTE: The Environment’s working_dir is not the same as the process working directory, and changing the process’s working directory will not affect the environment

pub fn initialization_metta_file_path(&self) -> Option<&Path>

Returns the path to the init.metta file, that is run to initialize a MeTTa runner and customize the MeTTa environment

pub fn catalogs(&self) -> impl Iterator<Item = &dyn ModuleCatalog> + '_

Returns the ModuleCatalogs from the Environment, in search priority order

pub fn fs_mod_formats(&self) -> impl Iterator<Item = &dyn FsModuleFormat> + '_

Returns the FsModuleFormats from the Environment, in priority order

Trait Implementations

impl Debug for Environment

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.