Trait moonlander_gp::AstNode

pub trait AstNode: Any + Mutatable + Copyable + Sync {
    fn node_type(&self) -> usize;
    fn children(&self) -> Vec<&AstNode>;
    fn replace_child(
        &self, 
        old_child: &AstNode, 
        new_child: &mut Option<Box<AstNode>>
    ) -> Box<AstNode>;
}

Main trait to be implemented for AST node types

Required Methods

fn node_type(&self) -> usize

Identify the node type, because Any::get_type_id() is unstable.

fn children(&self) -> Vec<&AstNode>

Return all children of this node.

fn replace_child(
    &self,
    old_child: &AstNode,
    new_child: &mut Option<Box<AstNode>>
) -> Box<AstNode>

Return a copy of this node with a single child node replaced.

Methods

impl AstNode

fn is<T>(&self) -> bool where
    T: Any,
    Self: Downcast<T>, 

unsafe fn downcast_ref_unchecked<T>(&self) -> &T where
    T: Any,
    Self: Downcast<T>, 

fn downcast_ref<T>(&self) -> Option<&T> where
    T: Any,
    Self: Downcast<T>, 

unsafe fn downcast_mut_unchecked<T>(&mut self) -> &mut T where
    T: Any,
    Self: Downcast<T>, 

fn downcast_mut<T>(&mut self) -> Option<&mut T> where
    T: Any,
    Self: Downcast<T>, 

unsafe fn unchecked_downcast<T>(self: Box<Self>) -> Box<T> where
    T: Any,
    Self: Downcast<T>, 

fn downcast<T>(self: Box<Self>) -> Result<Box<T>, Box<Self>> where
    T: Any,
    Self: Downcast<T>, 

Trait Implementations

impl<T> Downcast<T> for AstNode where
    T: AstNode, 

fn is_type(&self) -> bool

unsafe fn downcast_ref_unchecked(&self) -> &T

unsafe fn downcast_mut_unchecked(&mut self) -> &mut T

unsafe fn unchecked_downcast(self: Box<Self>) -> Box<T>

fn downcast_ref(&self) -> Option<&T>

fn downcast_mut(&mut self) -> Option<&mut T>

fn downcast(self: Box<Self>) -> Result<Box<T>, Box<Self>>

Implementors