rhai 1.27.0

Embedded scripting for Rust
Documentation 
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use crate::grain::bytecode::Chunk;

#[cfg(feature = "no_std")]
use std::prelude::v1::*;

/// One [`Op::CustomSyntax`](crate::grain::bytecode::Op::CustomSyntax) site:
/// the registered custom syntax to invoke, plus its (possibly only partially
/// lowered) inputs.
#[derive(Debug, Clone)]
pub struct CustomSyntaxSite {
    /// Name-pool index of the custom syntax's key -- its first token, which
    /// is what [`Engine::custom_syntax`](crate::Engine) is keyed on.
    pub key: u32,
    /// Const-pool index of the custom syntax's cloned `state` value.
    pub state: u32,
    /// Each `$expr$`/`$block$` input, in source order.
    /// Tuple is `(chunk, literal)`.
    pub inputs: Vec<(Chunk, Option<u32>)>,
}

impl CustomSyntaxSite {
    /// Dump the disassembly of the operation.
    #[cfg(feature = "internals")]
    pub fn disassemble(&self, program: &crate::grain::Program) -> String {
        format!(
            "{} [{} input(s)]",
            program.name(self.key).unwrap_or("?"),
            self.inputs.len(),
        )
    }
}