Struct rslint_core::groups::errors::NoSparseArrays

pub struct NoSparseArrays {}

Disallow sparse arrays.

Sparse arrays are arrays with empty slots, they are denoted by extra commas, such as:

let foo = [,,];
let foo = [bar,, baz];

Sparse elements will be filled in as undefined elements and count towards array length. This is often a typo or is hard to comprehend and an explicit method should be used.

Invalid Code Examples

let foo = [,];
let bar = [foo,, bar];

Implementations

impl NoSparseArrays

pub fn new() -> Self

Trait Implementations

impl Clone for NoSparseArrays

fn clone(&self) -> NoSparseArrays

Returns a copy of the value.

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

Performs copy-assignment from source.

impl CstRule for NoSparseArrays

fn check_node(&self, node: &SyntaxNode, ctx: &mut RuleCtx) -> Option<()>

Check an individual node in the syntax tree. You can use the match_ast macro to make matching a node to an ast node easier. The reason this uses nodes and not a visitor is because nodes are more flexible, converting them to an AST node has zero cost and you can easily traverse surrounding nodes. Defaults to doing nothing.

fn check_token(&self, token: &SyntaxToken, ctx: &mut RuleCtx) -> Option<()>

Check an individual token in the syntax tree. Defaults to doing nothing.

fn check_root(&self, root: &SyntaxNode, ctx: &mut RuleCtx) -> Option<()>

Check the root of the tree one time. This method is guaranteed to only be called once. The root's kind will be either SCRIPT or MODULE. Defaults to doing nothing.

impl Debug for NoSparseArrays

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

Formats the value using the given formatter.

impl Default for NoSparseArrays

fn default() -> NoSparseArrays

Returns the "default value" for a type.

impl<'de> Deserialize<'de> for NoSparseArrays

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl Rule for NoSparseArrays

fn name(&self) -> &'static str

A unique, kebab-case name for the rule.

fn group(&self) -> &'static str

The name of the group this rule belongs to.

impl Serialize for NoSparseArrays

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

Serialize this value into the given Serde serializer.