chiru 0.7.0

A parser generator similar to antlr4.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22

use std::fmt::Display;

use super::{terminal_context::TerminalContext, rule_context::RuleContext, error_context::ErrorContext};


#[derive(Clone, Debug)]
pub enum ASTContext {
  Terminal(TerminalContext),
  Rule(RuleContext),
  Error(ErrorContext),
}

impl Display for ASTContext {
  fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
    match &self {
      ASTContext::Terminal(ctx) => write!(f, "{}", ctx),
      ASTContext::Rule(ctx) => write!(f, "{}", ctx),
      ASTContext::Error(ctx) => write!(f, "{}", ctx),
    }
  }
}