Struct DataObjectRef 

pub struct DataObjectRef(/* private fields */);

Implementations

impl DataObjectRef

pub fn new(data_object: DataObject) -> Self

pub fn text_value(&self) -> Option<Box<str>>

pub fn byte_buffer_value(&self) -> Option<Gc<GcCell<Box<[u8]>>>>

pub fn array_value(&self) -> Option<Gc<GcCell<Box<[DataObjectRef]>>>>

pub fn list_value(&self) -> Option<Gc<GcCell<VecDeque<DataObjectRef>>>>

pub fn var_pointer_value(&self) -> Option<DataObjectRef>

pub fn function_pointer_value(&self) -> Option<FunctionPointerObjectRef>

pub fn struct_value(&self) -> Option<Gc<StructObject>>

pub fn object_value(&self) -> Option<LangObjectRef>

pub fn int_value(&self) -> Option<i32>

pub fn long_value(&self) -> Option<i64>

pub fn float_value(&self) -> Option<f32>

pub fn double_value(&self) -> Option<f64>

pub fn char_value(&self) -> Option<char>

pub fn error_value(&self) -> Option<Gc<ErrorObject>>

pub fn type_value(&self) -> Option<DataType>

pub fn number_value(&self) -> Option<Number>

This method borrows the data object and copies the value from DataObject::number_value

pub fn bool_value(&self) -> Option<bool>

This method borrows the data object and copies the value from DataObject::bool_value

pub fn variable_name(&self) -> Option<Box<str>>

pub fn is_final_data(&self) -> bool

pub fn is_static_data(&self) -> bool

pub fn is_copy_static_and_final_modifiers(&self) -> bool

pub fn is_lang_var(&self) -> bool

pub fn data_type(&self) -> DataType

pub fn type_constraint(&self) -> DataTypeConstraint

This functions clones data

pub fn member_visibility(&self) -> Option<Visibility>

pub fn member_of_class(&self) -> i64

pub fn is_accessible(&self, accessing_class: Option<&LangObjectRef>) -> bool

Methods from Deref<Target = GcCell<DataObject>>

pub fn borrow(&self) -> GcCellRef<'_, T>

Immutably borrows the wrapped value.

The borrow lasts until the returned GcCellRef exits scope. Multiple immutable borrows can be taken out at the same time.

Panics

Panics if the value is currently mutably borrowed.

pub fn borrow_mut(&self) -> GcCellRefMut<'_, T>

Mutably borrows the wrapped value.

The borrow lasts until the returned GcCellRefMut exits scope. The value cannot be borrowed while this borrow is active.

Panics

Panics if the value is currently borrowed.

pub fn try_borrow(&self) -> Result<GcCellRef<'_, T>, BorrowError>

Immutably borrows the wrapped value, returning an error if the value is currently mutably borrowed.

The borrow lasts until the returned GcCellRef exits scope. Multiple immutable borrows can be taken out at the same time.

This is the non-panicking variant of borrow.

Examples

use gc::GcCell;

let c = GcCell::new(5);

{
    let m = c.borrow_mut();
    assert!(c.try_borrow().is_err());
}

{
    let m = c.borrow();
    assert!(c.try_borrow().is_ok());
}

pub fn try_borrow_mut(&self) -> Result<GcCellRefMut<'_, T>, BorrowMutError>

Mutably borrows the wrapped value, returning an error if the value is currently borrowed.

The borrow lasts until the returned GcCellRefMut exits scope. The value cannot be borrowed while this borrow is active.

This is the non-panicking variant of borrow_mut.

Examples

use gc::GcCell;

let c = GcCell::new(5);

{
    let m = c.borrow();
    assert!(c.try_borrow_mut().is_err());
}

assert!(c.try_borrow_mut().is_ok());

Trait Implementations

impl AnyWithEq for DataObjectRef

fn as_any(&self) -> &dyn Any

fn is_equals( &self, other: &dyn AnyWithEq, interpreter: &mut Interpreter, pos: CodePosition, ) -> bool

fn is_strict_equals( &self, other: &dyn AnyWithEq, interpreter: &mut Interpreter, pos: CodePosition, ) -> bool

impl Clone for DataObjectRef

fn clone(&self) -> DataObjectRef

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DataObjectRef

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

Formats the value using the given formatter.

impl Default for DataObjectRef

fn default() -> DataObjectRef

Returns the “default value” for a type.

impl Deref for DataObjectRef

type Target = GcCell<DataObject>

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl Drop for DataObjectRef

fn drop(&mut self)

Executes the destructor for this type.

impl Finalize for DataObjectRef

fn finalize(&self)

impl Trace for DataObjectRef

unsafe fn trace(&self)

Marks all contained Gcs.

unsafe fn root(&self)

Increments the root-count of all contained Gcs.

unsafe fn unroot(&self)

Decrements the root-count of all contained Gcs.

fn finalize_glue(&self)

Runs Finalize::finalize() on this object and all contained subobjects