snix/users/tazjin/rlox/src/bytecode/opcode.rs
Vincent Ambo 4162186a19 feat(tazjin/rlox): Implement global variable access
This also includes a fix for an issue where the identifiers of
variables were pushed onto the stack, which is incorrect.

Change-Id: Id89b388268efad295f29978d767aa4b33c4ded14
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2594
Reviewed-by: tazjin <mail@tazj.in>
Tested-by: BuildkiteCI
2021-03-06 11:52:00 +00:00

36 lines
561 B
Rust

#[derive(Debug)]
pub enum OpCode {
/// Push a constant onto the stack.
OpConstant(usize),
// Literal pushes
OpNil,
OpTrue,
OpFalse,
/// Return from the current function.
OpReturn,
// Boolean & comparison operators
OpNot,
OpEqual,
OpGreater,
OpLess,
/// Unary negation
OpNegate,
// Arithmetic operators
OpAdd,
OpSubtract,
OpMultiply,
OpDivide,
// Built in operations
OpPrint,
OpPop,
// Variable management
OpDefineGlobal(usize),
OpGetGlobal(usize),
}