Trait ExtensionExpr 

pub trait ExtensionExpr:
    Debug
    + Send
    + Sync {
    // Required methods
    fn as_any(&self) -> &dyn Any;
    fn name(&self) -> &str;
    fn value_type(&self) -> ValueType;
    fn children(&self) -> &[Expr];
    fn with_new_children(&self, children: Vec<Expr>) -> Arc<dyn ExtensionExpr>;
}

The interface for extending the AST with custom expression node.

Required Methods

fn as_any(&self) -> &dyn Any

fn name(&self) -> &str

fn value_type(&self) -> ValueType

fn children(&self) -> &[Expr]

fn with_new_children(&self, children: Vec<Expr>) -> Arc<dyn ExtensionExpr>

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors