Struct wlambda::compiler::CompileEnv

pub struct CompileEnv {
    pub global: GlobalEnvRef,
    pub implicit_arity: (ArityParam, ArityParam),
    pub explicit_arity: (ArityParam, ArityParam),
    pub recent_var: String,
    pub recent_sym: String,
    pub quote_func: bool,
    // some fields omitted
}

Compile time environment for allocating and storing variables inside a function scope.

Also handles upvalues. Upvalues in WLambda are copied to every scope that they are passed through until they are needed.

Fields

global: GlobalEnvRef

Reference to the global environment

implicit_arity: (ArityParam, ArityParam)

Stores the implicitly calculated arity of this function.

explicit_arity: (ArityParam, ArityParam)

Stores the explicitly defined arity of this function.

recent_var: String

Recently accessed variable name:

recent_sym: String

Recently compiled symbol:

quote_func: bool

If set, the next compile() is compiling a function as block.

Implementations

impl CompileEnv

pub fn new(g: GlobalEnvRef) -> Rc<RefCell<Self>>

pub fn create_env(
    parent: Option<Rc<RefCell<CompileEnv>>>
) -> Rc<RefCell<CompileEnv>>

pub fn def_const(&mut self, s: &str, val: VVal)

pub fn def_local(&mut self, s: &str, idx: usize)

pub fn find_or_new_local(&mut self, var: &str) -> usize

pub fn next_local(&mut self) -> usize

pub fn get_local_space(&self) -> usize

pub fn def(&mut self, s: &str, is_global: bool) -> VarPos

pub fn get_upval_pos(&self) -> Vec<VarPos>

pub fn local_env_size(&self) -> usize

pub fn push_block_env(&mut self)

pub fn pop_block_env(&mut self) -> (usize, usize)

pub fn get(&mut self, s: &str) -> VarPos

Trait Implementations

impl Clone for CompileEnv

fn clone(&self) -> CompileEnv

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for CompileEnv

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

Formats the value using the given formatter.