Enum Instruction 

pub enum Instruction {
    Push(Constant),
    Pop,
    Dup,
    LoadLocal(usize),
    StoreLocal(usize),
    LoadGlobal(String),
    StoreGlobal(String),
    DeclareLocal(String),
    Add,
    Sub,
    Mul,
    Div,
    Rem,
    Pow,
    Neg,
    BitNot,
    BitAnd,
    BitOr,
    BitXor,
    Shl,
    Shr,
    Ushr,
    Eq,
    Neq,
    StrictEq,
    StrictNeq,
    Lt,
    Lte,
    Gt,
    Gte,
    Not,
    CreateArray(usize),
    CreateObject(usize),
    GetProperty(String),
    SetProperty(String),
    GetIndex,
    SetIndex,
    Spread,
    In,
    InstanceOf,
    CreateClosure(usize),
    Call(usize),
    Return,
    CallExternal(String, usize),
    Jump(usize),
    JumpIfFalse(usize),
    JumpIfTrue(usize),
    JumpIfNullish(usize),
    SetupLoop,
    Break,
    Continue,
    GetIterator,
    IteratorNext,
    IteratorDone,
    SetupTry(usize, Option<usize>),
    Throw,
    EndTry,
    TypeOf,
    Void,
    Increment,
    Decrement,
    ConcatStrings(usize),
    DestructureObject(Vec<String>),
    DestructureArray(usize),
    CreateClass {
        name: String,
        n_methods: usize,
        n_statics: usize,
        has_super: bool,
    },
    Construct(usize),
    LoadThis,
    StoreThis,
    CallSuper(usize),
    CreateGenerator(usize),
    Yield,
    Await,
    Nop,
}

Bytecode instructions for the Zapcode VM.

Variants

Push(Constant)

Pop

Dup

LoadLocal(usize)

StoreLocal(usize)

LoadGlobal(String)

StoreGlobal(String)

DeclareLocal(String)

Add

Sub

Mul

Div

Rem

Pow

Neg

BitNot

BitAnd

BitOr

BitXor

Shl

Shr

Ushr

Eq

Neq

StrictEq

StrictNeq

Lt

Lte

Gt

Gte

Not

CreateArray(usize)

CreateObject(usize)

GetProperty(String)

SetProperty(String)

GetIndex

SetIndex

Spread

In

InstanceOf

CreateClosure(usize)

Call(usize)

Return

CallExternal(String, usize)

Jump(usize)

JumpIfFalse(usize)

JumpIfTrue(usize)

JumpIfNullish(usize)

SetupLoop

Break

Continue

GetIterator

IteratorNext

IteratorDone

SetupTry(usize, Option<usize>)

Throw

EndTry

TypeOf

Void

Increment

Decrement

ConcatStrings(usize)

DestructureObject(Vec<String>)

DestructureArray(usize)

CreateClass

Create a class: pops constructor closure (or undefined), then n_methods method closures with method names, then n_static static closures with names, then optional super class. Pushes the class object (an Object with constructor, prototype, class_name).

Fields

name: String

n_methods: usize

n_statics: usize

has_super: bool

Construct(usize)

Construct: pops class object + args, creates instance, calls constructor, pushes instance.

LoadThis

Load this from the current call frame.

StoreThis

Store a value as the current this (used for this.prop = val).

CallSuper(usize)

Call super constructor with n args. Pops args, looks up super.constructor, calls it with current this.

CreateGenerator(usize)

Create a generator object from a function index (like CreateClosure but for generators).

Yield

Yield a value from a generator. Pops the value, suspends execution.

Await

Await: if the top-of-stack is a resolved Promise object, unwrap its value. If it’s a regular value, leave it as-is. External call suspension is handled by CallExternal before Await is reached.

Nop

Trait Implementations

impl Clone for Instruction

fn clone(&self) -> Instruction

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Instruction

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Instruction

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Instruction

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.