Struct ShellEnv 

pub struct ShellEnv {
    pub variables: HashMap<String, ShellVar>,
    pub functions: HashMap<String, FunctionDef>,
    pub aliases: HashMap<String, String>,
    pub exit_status: i32,
    pub pid: u32,
    pub ppid: u32,
    pub positional_params: Vec<String>,
}

The full shell environment state.

Fields

variables: HashMap<String, ShellVar>

Named variables.

functions: HashMap<String, FunctionDef>

Shell functions (stored as AST nodes).

aliases: HashMap<String, String>

Aliases: name -> replacement text.

exit_status: i32

Exit status of the last command ($?).

pid: u32

PID of the shell process ($$).

ppid: u32

Parent PID ($PPID).

positional_params: Vec<String>

Positional parameters ($1, $2, …).

Implementations

impl ShellEnv

pub fn new() -> Self

Create a new environment, inheriting the OS environment variables and capturing the current PID/PPID.

pub fn get_var(&self, name: &str) -> Option<&str>

Get a variable’s value, if it exists.

pub fn set_var(&mut self, name: &str, value: &str)

Set a variable. Fails silently if the variable is read-only.

pub fn export_var(&mut self, name: &str)

Mark a variable as exported.

pub fn unset_var(&mut self, name: &str)

Remove a variable. Fails silently if it is read-only.

pub fn to_env_vec(&self) -> Vec<CString>

Build the envp array for execve(2).

Returns a list of CStrings in KEY=VALUE format for every exported variable.

pub fn to_argv(words: &[impl AsRef<OsStr>]) -> Vec<CString>

Build an argv from an OsStr slice (convenience for fork/exec).

Trait Implementations

impl Clone for ShellEnv

fn clone(&self) -> ShellEnv

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ShellEnv

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

Formats the value using the given formatter.

impl Default for ShellEnv

fn default() -> Self

Returns the “default value” for a type.

impl ShellEnvironment for ShellEnv

Implements the frost_builtins::ShellEnvironment trait so that built-in commands can interact with the shell state.

fn get_var(&self, name: &str) -> Option<&str>

fn set_var(&mut self, name: &str, value: &str)

fn export_var(&mut self, name: &str)

fn unset_var(&mut self, name: &str)

fn exit_status(&self) -> i32

fn set_exit_status(&mut self, status: i32)

fn chdir(&mut self, path: &str) -> Result<(), String>

fn home_dir(&self) -> Option<&str>