Trait Node

pub trait Node {
    // Provided methods
    fn lineno(&self) -> Option<usize> { ... }
    fn col_offset(&self) -> Option<usize> { ... }
    fn end_lineno(&self) -> Option<usize> { ... }
    fn end_col_offset(&self) -> Option<usize> { ... }
    fn error_message(
        &self,
        mod_name: impl AsRef<str>,
        message: impl AsRef<str>,
    ) -> String { ... }
}

A trait for AST elements that represent a position in a source file. Implementing this trait allows an ergonomic means of extracting line and column information from an item.

Provided Methods

fn lineno(&self) -> Option<usize>

A method for getting the starting line number of the node. This may not exist for all node types.

fn col_offset(&self) -> Option<usize>

A method for getting the starting column of the node. This may not exist for all node types.

fn end_lineno(&self) -> Option<usize>

A method for getting the ending line number of the node. This may not exist for all node types.

fn end_col_offset(&self) -> Option<usize>

A method for getting the ending column of the node. This may not exist for all node types.

fn error_message( &self, mod_name: impl AsRef<str>, message: impl AsRef<str>, ) -> String

Generate an error message for the current code, adding line and column number.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl Node for PyAny

fn lineno(&self) -> Option<usize>

A method for getting the starting line number of the node. This may not exist for all node types.

fn col_offset(&self) -> Option<usize>

A method for getting the starting column of the node. This may not exist for all node types.

fn end_lineno(&self) -> Option<usize>

A method for getting the ending line number of the node. This may not exist for all node types.

fn end_col_offset(&self) -> Option<usize>

A method for getting the ending column of the node. This may not exist for all node types.

Implementors

impl Node for Expr

impl Node for Statement