Struct extendable_vm::Machine

pub struct Machine<'a, Constant, Value: Debug> {
    pub code: &'a Code<Constant>,
    pub globals: HashMap<String, Value>,
    // some fields omitted
}

The entire state of the VM

State contains the code that the VM is executing and a hashmap of all global variables.

Fields

code: &'a Code<Constant>

globals: HashMap<String, Value>

Implementations

impl<'a, Constant, Value: Debug> Machine<'a, Constant, Value>

pub fn new(
    code: &'a Code<Constant>,
    instruction_table: InstructionTable<'a, Constant, Value>
) -> Machine<'a, Constant, Value>

pub fn start(&mut self) -> bool

pub fn push_operand(&mut self, operand: Value)

pub fn peek_operand(&mut self) -> Result<&Value, EmptyOperandStack>

pub fn pop_operand(&mut self) -> Result<Value, EmptyOperandStack>

pub fn pop_two_operands(&mut self) -> Result<(Value, Value), Exception>

pub fn get_operand(&self, slot: usize) -> Result<&Value, SlotOutOfBounds>

pub fn get_operand_from_top(
    &self,
    slot_from_top: usize
) -> Result<&Value, SlotOutOfBounds>

pub fn set_operand(
    &mut self,
    slot: usize,
    value: Value
) -> Result<(), SlotOutOfBounds>

pub fn operand_stack_len(&self) -> usize

pub fn peek_frame(&self) -> Result<&CallFrame, EmptyCallStack>

pub fn push_frame(&mut self, chunk_id: usize, name: String, start_slot: usize)

pub fn discard_frame(&mut self) -> Result<CallFrame, EmptyCallStack>

pub fn instruction_pointer(
    &mut self
) -> Result<&mut InstructionPointer, EmptyCallStack>

Trait Implementations

impl<'a, Constant, Value: Debug> ByteReadable<InstructionPointer> for Machine<'a, Constant, Value>

fn read(&self, ptr: &mut InstructionPointer) -> Option<u8>

fn has_next(&self, ptr: &InstructionPointer) -> bool

fn read_n(&self, ptr: &mut Ptr, n: usize) -> Option<Vec<u8>>

fn read_u16(&self, ptr: &mut Ptr) -> Option<u16>

fn read_u32(&self, ptr: &mut Ptr) -> Option<u32>

fn read_i32(&self, ptr: &mut Ptr) -> Option<i32>