Struct GlobalMap

struct GlobalMap {
    var_to_bid: HashMap<String, usize>,
    bid_to_var: HashMap<usize, String>,
}

Bidirectional map between the name of a global variable and memory box id

Fields

var_to_bid: HashMap<String, usize>

Map the name of a global variable to the memory box id

Since IR treats global variables as Constant::GlobalVariable, the interpreter should be able to generate pointer values by inferring bid from the name of the global variable.

bid_to_var: HashMap<usize, String>

Map the memory box id to the name of a global variable

When a function call occurs, the interpreter should be able to find name of the function from bid of the callee which is a function pointer.

Implementations

impl GlobalMap

fn insert(&mut self, var: String, bid: usize) -> Result<(), InterpreterError>

Create a bi-directional mapping between var and bid.

fn get_bid(&self, var: &str) -> Option<usize>

fn get_var(&self, bid: usize) -> Option<String>

Trait Implementations

impl Clone for GlobalMap

fn clone(&self) -> GlobalMap

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for GlobalMap

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

Formats the value using the given formatter.

impl Default for GlobalMap

fn default() -> GlobalMap

Returns the “default value” for a type.

impl PartialEq for GlobalMap

fn eq(&self, other: &GlobalMap) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for GlobalMap