Struct boa::syntax::ast::node::declaration::LetDeclList

pub struct LetDeclList { /* fields omitted */ }

The let statement declares a block scope local variable, optionally initializing it to a value.

let allows you to declare variables that are limited to a scope of a block statement, or expression on which it is used, unlike the var keyword, which defines a variable globally, or locally to an entire function regardless of block scope.

Just like const the let does not create properties of the window object when declared globally (in the top-most scope).

More information:

• ECMAScript reference
• MDN documentation

Trait Implementations

impl AsRef<[LetDecl]> for LetDeclList

fn as_ref(&self) -> &[LetDecl]

Performs the conversion.

impl Clone for LetDeclList

fn clone(&self) -> LetDeclList

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for LetDeclList

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

Formats the value using the given formatter.

impl Display for LetDeclList

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

Formats the value using the given formatter.

impl Drop for LetDeclList

fn drop(&mut self)

Executes the destructor for this type.

impl Executable for LetDeclList

fn run(&self, interpreter: &mut Interpreter) -> ResultValue

Runs this executable in the given executor.

impl Finalize for LetDeclList

fn finalize(&self)

impl From<LetDecl> for LetDeclList

fn from(decl: LetDecl) -> Self

Performs the conversion.

impl From<LetDeclList> for Node

fn from(list: LetDeclList) -> Self

Performs the conversion.

impl<T> From<T> for LetDeclList where
    T: Into<Box<[LetDecl]>>, 

fn from(list: T) -> Self

Performs the conversion.

impl PartialEq<LetDeclList> for LetDeclList

fn eq(&self, other: &LetDeclList) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &LetDeclList) -> bool

This method tests for !=.

impl StructuralPartialEq for LetDeclList

impl Trace for LetDeclList

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