Struct rslint_core::groups::errors::NoThisBeforeSuper

pub struct NoThisBeforeSuper {}

Prevent the use of this / super before calling super().

In the constructor of a derived class (extends a class), using this / super before the super() call, will throw an error.

Incorrect Code Examples

class A extends B {
    constructor() {
        this.a = 0;
        super();
    }
}

class A extends B {
    constructor() {
        this.foo();
        super();
    }
}

class A extends B {
    constructor() {
        super.foo();
        super();
    }
}

class A extends B {
    constructor() {
        super(this.foo());
    }
}

Correct Code Examples

class A {
    constructor() {
        this.a = 0; // OK, this class doesn't have an `extends` clause.
    }
}

class A extends B {
    constructor() {
        super();
        this.a = 0; // OK, this is after `super()`.
    }
}

class A extends B {
    foo() {
        this.a = 0; // OK. this is not in a constructor.
    }
}

Implementations

impl NoThisBeforeSuper

pub fn new() -> Self

Trait Implementations

impl Clone for NoThisBeforeSuper

fn clone(&self) -> NoThisBeforeSuper

Returns a copy of the value.

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

Performs copy-assignment from source.

impl CstRule for NoThisBeforeSuper

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 NoThisBeforeSuper

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

Formats the value using the given formatter.

impl Default for NoThisBeforeSuper

fn default() -> NoThisBeforeSuper

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for NoThisBeforeSuper

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

Deserialize this value from the given Serde deserializer.

impl Rule for NoThisBeforeSuper

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.

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

Optional docs for the rule, an empty string by default

fn tags(&self) -> &'static [Tag]

A list of tags present on this rule. Empty by default.

fn recommended(&self) -> bool

Whether this rule is recommended, this is a simple helper around Self::tags.

impl Serialize for NoThisBeforeSuper

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

Serialize this value into the given Serde serializer.