Trait ProgramVisitor 

pub trait ProgramVisitor: HasDiagnostics {
    // Required method
    fn start_block(&mut self) -> ControlFlow<impl BlockVisitor + '_>;
}

Top-level visitor: one implementation per parse, created by the caller and passed to parse or resume.

The parser calls start_block for each block (line) in the source. Return ControlFlow::Continue with a BlockVisitor to process that line, or ControlFlow::Break to pause (e.g. buffer full); the returned ParserState can be passed to resume to continue later.

Required Methods

fn start_block(&mut self) -> ControlFlow<impl BlockVisitor + '_>

Called at the start of each block (line). Return a BlockVisitor to handle this block, or break to pause parsing.

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.

Implementors

impl ProgramVisitor for AstBuilder

Available on crate feature alloc only.

impl ProgramVisitor for Noop