Struct ParamDecl 

pub struct ParamDecl {
    pub name: Ident,
    pub ty: Option<TypeAnnotation>,
    pub default: Option<ExprId>,
    pub optional: bool,
    pub pattern: Option<Binding>,
    pub rest: bool,
    pub modifiers: Option<ClassModifiers>,
}

Source-syntax parameter. Fully-resolved form is crate::Param.

Fields

name: Ident

ty: Option<TypeAnnotation>

default: Option<ExprId>

optional: bool

Declared with ?. A parameter with a default may be omitted too; ParamDecl::is_omittable asks that.

pattern: Option<Binding>

Cleared by lower_patterns; always None post-lowering.

rest: bool

modifiers: Option<ClassModifiers>

Some for a constructor parameter property (constructor(public x: T)): declares and auto-assigns a field. None for an ordinary parameter.

Implementations

impl ParamDecl

pub fn is_omittable(&self) -> bool

Whether a caller may leave the argument out: declared ?, or defaulted.

Trait Implementations

impl Clone for ParamDecl

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParamDecl

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

Formats the value using the given formatter.

impl PartialEq for ParamDecl

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ParamDecl