Enum OpCode

pub enum OpCode {
    Constant,
    Add,
    Subtract,
    Multiply,
    Divide,
    Negate,
    Return,
    Print,
    GetVariable,
    SetVariable,
    Pop,
    DefineFunction,
    Call,
    JumpIfFalse,
    Jump,
    BoolNot,
    BoolAnd,
    BoolOr,
    Greater,
    Less,
    GreaterEqual,
    LessEqual,
    Equal,
    NotEqual,
    BeginScope,
    EndScope,
}

Operation codes for the bytecode interpreter

Variants

Constant

Push a constant onto the stack

Add

Add the top two stack values

Subtract

Subtract the top stack value from the second stack value

Multiply

Multiply the top two stack values

Divide

Divide the second stack value by the top stack value

Negate

Negate the top stack value

Return

Return from the current function

Print

Print the top stack value

GetVariable

Push the value of a variable onto the stack

SetVariable

Set a variable to the top stack value

Pop

Remove the top stack value

DefineFunction

Define a function

Call

Call a function

JumpIfFalse

Jump if the top stack value is false

Jump

Jump unconditionally

BoolNot

Negate a boolean value (logical NOT)

BoolAnd

Boolean AND operation

BoolOr

Boolean OR operation

Greater

Greater than comparison

Less

Less than comparison

GreaterEqual

Greater than or equal comparison

LessEqual

Less than or equal comparison

Equal

Equal comparison

NotEqual

Not equal comparison

BeginScope

Begin a new scope (save variable state)

EndScope

End the current scope (restore variable state)

Implementations

impl OpCode

pub fn from_int<T: Into<usize>>(value: T) -> Option<Self>

Trait Implementations

impl Debug for OpCode

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

Formats the value using the given formatter.

impl PartialEq for OpCode

fn eq(&self, other: &OpCode) -> 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 OpCode