Trait ra_ap_syntax::ast::AstNode

source · [−]
pub trait AstNode {
    fn can_cast(kind: SyntaxKind) -> bool
   where
        Self: Sized;
    fn cast(syntax: SyntaxNode) -> Option<Self>
   where
        Self: Sized;
    fn syntax(&self) -> &SyntaxNode;

    fn clone_for_update(&self) -> Self
   where
        Self: Sized,
    { ... }
    fn clone_subtree(&self) -> Self
   where
        Self: Sized,
    { ... }
}
Expand description

The main trait to go from untyped SyntaxNode to a typed ast. The conversion itself has zero runtime cost: ast and syntax nodes have exactly the same representation: a pointer to the tree root and a pointer to the node itself.

Required Methods

Provided Methods

Implementors