rune 0.14.2

The Rune Language, an embeddable dynamic programming language for Rust.
Documentation 
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use crate::ast::prelude::*;

#[test]
#[cfg(not(miri))]
fn ast_parse() {
    rt::<ast::ExprIndex>("value[42]");
    rt::<ast::ExprIndex>("value[value2[v + 2]]");
}

/// An index get operation.
///
/// * `<target>[<index>]`.
#[derive(Debug, TryClone, PartialEq, Eq, ToTokens, Spanned)]
#[non_exhaustive]
pub struct ExprIndex {
    /// Attributes associated with expression.
    #[rune(iter)]
    pub attributes: Vec<ast::Attribute>,
    /// The target of the index set.
    pub target: Box<ast::Expr>,
    /// The opening bracket.
    pub open: T!['['],
    /// The indexing expression.
    pub index: Box<ast::Expr>,
    /// The closening bracket.
    pub close: T![']'],
}

expr_parse!(Index, ExprIndex, "index expression");