From 47ffa8071152bcafb4b6ff87a3142bf12dbce12b Mon Sep 17 00:00:00 2001 From: Vincent Ambo Date: Sun, 28 Feb 2021 15:15:46 +0200 Subject: feat(tazjin/rlox): Support trivial literals in bytecode compiler Adds support for true, false & nil. These each come with a new separate opcode and are pushed directly on the stack. Change-Id: I405b5b09496dcf99d514d3411c083e0834377167 Reviewed-on: https://cl.tvl.fyi/c/depot/+/2571 Reviewed-by: tazjin Tested-by: BuildkiteCI --- users/tazjin/rlox/src/bytecode/opcode.rs | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'users/tazjin/rlox/src/bytecode/opcode.rs') diff --git a/users/tazjin/rlox/src/bytecode/opcode.rs b/users/tazjin/rlox/src/bytecode/opcode.rs index 0f070ce9fffc..057fa7697719 100644 --- a/users/tazjin/rlox/src/bytecode/opcode.rs +++ b/users/tazjin/rlox/src/bytecode/opcode.rs @@ -1,8 +1,13 @@ #[derive(Debug)] pub enum OpCode { - /// Access a constant for use. + /// Push a constant onto the stack. OpConstant(usize), + // Literal pushes + OpNil, + OpTrue, + OpFalse, + /// Return from the current function. OpReturn, -- cgit 1.4.1