Struct yksom::vm::objects::Block

pub struct Block {
    pub inst: Val,
    pub func: Gc<Function>,
    pub upvars: Vec<Gc<UpVar>>,
    pub method_stack_base: usize,
}

Fields

inst: Val

This Block’s self val. XXX This should probably be part of the corresponding closure’s variables.

func: Gc<Function>

upvars: Vec<Gc<UpVar>>

method_stack_base: usize

For closures which perform a method return (i.e. they cause the method they are contained within to return), we have to reset the stack to the method’s stack base, so we have to cart that around with the Block.

Implementations

impl Block

pub fn new(
    _: &mut VM,
    inst: Val,
    func: Gc<Function>,
    upvars: Vec<Gc<UpVar>>,
    method_stack_base: usize
) -> Val

Trait Implementations

impl Debug for Block

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

Formats the value using the given formatter.

impl NotUnboxable for Block

impl Obj for Block

fn dyn_objtype(self: Gc<Self>) -> ObjType

What ObjType does this Val represent?

fn get_class(self: Gc<Self>, vm: &mut VM) -> Val

What class is this object an instance of?

fn hashcode(self: Gc<Self>) -> u64

What is this object’s hashcode?

fn to_array(self: Gc<Self>) -> Result<Gc<dyn Array>, Box<VMError>> where
    Self: Send, 

If (and only if) this object implements the Array trait then return a reference to this object as an Array trait object.

fn to_strval(self: Gc<Self>, _: &mut VM) -> Result<Val, Box<VMError>> where
    Self: Send, 

Convert this object to a Val that represents a SOM string.

fn num_inst_vars(self: Gc<Self>, _: &VM) -> usize where
    Self: Send, 

How many instance variables does this object contain?

fn inst_var_at(self: Gc<Self>, vm: &VM, i: usize) -> Result<Val, Box<VMError>> where
    Self: Send, 

Return the instance variable at i (using SOM indexing).

fn inst_var_at_put(
    self: Gc<Self>,
    vm: &VM,
    i: usize,
    v: Val
) -> Result<(), Box<VMError>> where
    Self: Send, 

Return the instance variable at i (using SOM indexing).

unsafe fn unchecked_inst_var_get(self: Gc<Self>, _: &VM, _: usize) -> Val where
    Self: Send, 

Lookup an instance variable in this object. If usize exceeds the number of instance variables this will lead to undefined behaviour.

unsafe fn unchecked_inst_var_set(self: Gc<Self>, _: &VM, _: usize, _: Val) where
    Self: Send, 

Set an instance variable in this object. If usize exceeds the number of instance variables this will lead to undefined behaviour.

fn length(self: Gc<Self>) -> usize where
    Self: Send, 

What is this object’s length?

fn add(self: Gc<Self>, _: &mut VM, _: Val) -> Result<Val, Box<VMError>> where
    Self: Send, 

Produce a new Val which adds other to this.

fn and(self: Gc<Self>, _: &mut VM, _: Val) -> Result<Val, Box<VMError>> where
    Self: Send, 

Produce a new Val which performs a bitwise and with other and this.

fn div(self: Gc<Self>, _: &mut VM, _: Val) -> Result<Val, Box<VMError>> where
    Self: Send, 

Produce a new Val which divides other from this.

fn double_div(self: Gc<Self>, _: &mut VM, _: Val) -> Result<Val, Box<VMError>> where
    Self: Send, 

fn modulus(self: Gc<Self>, _: &mut VM, _: Val) -> Result<Val, Box<VMError>> where
    Self: Send, 

Produce a new Val which performs a mod operation on this with other.

fn mul(self: Gc<Self>, _: &mut VM, _: Val) -> Result<Val, Box<VMError>> where
    Self: Send, 

Produce a new Val which multiplies other to this.

fn remainder(self: Gc<Self>, _: &mut VM, _: Val) -> Result<Val, Box<VMError>> where
    Self: Send, 

Produce a new Val which returns the remainder of dividing this with other.

fn shl(self: Gc<Self>, _: &mut VM, _: Val) -> Result<Val, Box<VMError>> where
    Self: Send, 

Produce a new Val which shifts self other bits to the left.

fn shr(self: Gc<Self>, _: &mut VM, _: Val) -> Result<Val, Box<VMError>> where
    Self: Send, 

Produce a new Val which shifts self other bits to the right, treating self as if it did not have a sign bit.

fn sqrt(self: Gc<Self>, _: &mut VM) -> Result<Val, Box<VMError>> where
    Self: Send, 

Produces a new Val which is the square root of this.

fn sub(self: Gc<Self>, _: &mut VM, _: Val) -> Result<Val, Box<VMError>> where
    Self: Send, 

Produce a new Val which subtracts other from this.

fn xor(self: Gc<Self>, _: &mut VM, _: Val) -> Result<Val, Box<VMError>> where
    Self: Send, 

Produce a new Val which performs a bitwise xor with other and this

fn ref_equals(
    self: Gc<Self>,
    vm: &mut VM,
    other: Val
) -> Result<Val, Box<VMError>> where
    Self: Send, 

Is this Val reference equality equal to other? Only immutable SOM types are likely to want to override this.

fn equals(self: Gc<Self>, _: &mut VM, _: Val) -> Result<Val, Box<VMError>> where
    Self: Send, 

Does this Val equal other?

fn not_equals(self: Gc<Self>, _: &mut VM, _: Val) -> Result<Val, Box<VMError>> where
    Self: Send, 

Does this Val not equal other?

fn greater_than(self: Gc<Self>, _: &mut VM, _: Val) -> Result<Val, Box<VMError>> where
    Self: Send, 

Is this Val greater than other?

fn greater_than_equals(
    self: Gc<Self>,
    _: &mut VM,
    _: Val
) -> Result<Val, Box<VMError>> where
    Self: Send, 

Is this Val greater than or equal to other?

fn less_than(self: Gc<Self>, _: &mut VM, _: Val) -> Result<Val, Box<VMError>> where
    Self: Send, 

Is this Val less than other?

fn less_than_equals(
    self: Gc<Self>,
    _: &mut VM,
    _: Val
) -> Result<Val, Box<VMError>> where
    Self: Send, 

Is this Val less than or equal to other?

impl StaticObjType for Block

fn static_objtype() -> ObjType

Return this trait type’s static ObjType