cas-compiler 0.2.0

Bytecode compiler for CalcScript programs
Documentation 
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use cas_error::Error;
use cas_parser::parser::ast::index::Index;
use crate::{Compile, Compiler, InstructionKind};

impl Compile for Index {
    fn compile(&self, compiler: &mut Compiler) -> Result<(), Error> {
        // load the (hopefully) list value onto the stack
        self.target.compile(compiler)?;

        // load the index value onto the stack
        self.index.compile(compiler)?;

        // load the value at the index onto the stack
        compiler.add_instr_with_spans(
            InstructionKind::LoadIndexed,
            vec![self.target.span(), self.index.span()],
        );
        Ok(())
    }
}