Enum ThisMode 

pub enum ThisMode {
    Lexical,
    Strict,
    Global,
}

Represents the [[ThisMode]] internal slot of function objects.

More information:

• ECMAScript specification

Variants

Lexical

The this value refers to the this value of a lexically enclosing function.

Strict

The this value is used exactly as provided by an invocation of the function.

Global

The this value of undefined or null is interpreted as a reference to the global object, and any other this value is first passed to ToObject.

Implementations

impl ThisMode

pub const fn is_lexical(&self) -> bool

Returns true if the this mode is Lexical.

pub const fn is_strict(&self) -> bool

Returns true if the this mode is Strict.

pub const fn is_global(&self) -> bool

Returns true if the this mode is Global.

Trait Implementations

impl Clone for ThisMode

fn clone(&self) -> ThisMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ThisMode

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

Formats the value using the given formatter.

impl Drop for ThisMode

fn drop(&mut self)

Executes the destructor for this type.

impl Finalize for ThisMode

fn finalize(&self)

Cleanup logic for a type.

impl PartialEq for ThisMode

fn eq(&self, other: &ThisMode) -> 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 Trace for ThisMode

unsafe fn trace(&self, tracer: &mut Tracer)

Marks all contained Gcs.

unsafe fn trace_non_roots(&self)

Trace handles located in GC heap, and mark them as non root.

fn run_finalizer(&self)

Runs Finalize::finalize on this object and all contained subobjects.

impl Eq for ThisMode

impl StructuralPartialEq for ThisMode